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Commit 6aac46e3 authored by Sam Ravnborg's avatar Sam Ravnborg
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Merge mars.ravnborg.org:/home/sam/bk/linux-2.6 

into mars.ravnborg.org:/home/sam/bk/kbuild
parents e869cf72 a2c665b0
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Documentation/DocBook/Makefile
View file @ 6aac46e3
......@@ -185,9 +185,7 @@ clean-files := $(DOCBOOKS) \
$(patsubst %.sgml, %.9, $(DOCBOOKS)) \
$(C-procfs-example)
ifneq ($(wildcard $(patsubst %.html,%,$(HTML))),)
clean-rule := rm -rf $(wildcard $(patsubst %.html,%,$(HTML)))
endif
clean-dirs := $(patsubst %.sgml,%,$(DOCBOOKS))
#man put files in man subdir - traverse down
subdir- := man/
Documentation/kbuild/makefiles.txt
View file @ 6aac46e3
......@@ -25,6 +25,7 @@ This document describes the Linux kernel Makefiles.
--- 4.4 Using C++ for host programs
--- 4.5 Controlling compiler options for host programs
--- 4.6 When host programs are actually built
--- 4.7 Using hostprogs-$(CONFIG_FOO)
=== 5 Kbuild clean infrastructure
......@@ -36,6 +37,8 @@ This document describes the Linux kernel Makefiles.
--- 6.5 Building non-kbuild targets
--- 6.6 Commands useful for building a boot image
--- 6.7 Custom kbuild commands
--- 6.8 Preprocessing linker scripts
--- 6.9 $(CC) support functions
=== 7 Kbuild Variables
=== 8 Makefile language
......@@ -387,7 +390,7 @@ compilation stage.
Two steps are required in order to use a host executable.
The first step is to tell kbuild that a host program exists. This is
done utilising the variable host-prog.
done utilising the variable hostprogs-y.
The second step is to add an explicit dependency to the executable.
This can be done in two ways. Either add the dependency in a rule,
......@@ -402,7 +405,7 @@ Both possibilities are described in the following.
built on the build host.
Example:
host-progs := bin2hex
hostprogs-y := bin2hex
Kbuild assumes in the above example that bin2hex is made from a single
c-source file named bin2hex.c located in the same directory as
......@@ -418,7 +421,7 @@ Both possibilities are described in the following.
Example:
#scripts/lxdialog/Makefile
host-progs := lxdialog
hostprogs-y := lxdialog
lxdialog-objs := checklist.o lxdialog.o
Objects with extension .o are compiled from the corresponding .c
......@@ -438,7 +441,7 @@ Both possibilities are described in the following.
Example:
#scripts/kconfig/Makefile
host-progs := conf
hostprogs-y := conf
conf-objs := conf.o libkconfig.so
libkconfig-objs := expr.o type.o
......@@ -457,7 +460,7 @@ Both possibilities are described in the following.
Example:
#scripts/kconfig/Makefile
host-progs := qconf
hostprogs-y := qconf
qconf-cxxobjs := qconf.o
In the example above the executable is composed of the C++ file
......@@ -468,7 +471,7 @@ Both possibilities are described in the following.
Example:
#scripts/kconfig/Makefile
host-progs := qconf
hostprogs-y := qconf
qconf-cxxobjs := qconf.o
qconf-objs := check.o
......@@ -509,7 +512,7 @@ Both possibilities are described in the following.
Example:
#drivers/pci/Makefile
host-progs := gen-devlist
hostprogs-y := gen-devlist
$(obj)/devlist.h: $(src)/pci.ids $(obj)/gen-devlist
( cd $(obj); ./gen-devlist ) < $<
......@@ -524,18 +527,32 @@ Both possibilities are described in the following.
Example:
#scripts/lxdialog/Makefile
host-progs := lxdialog
always := $(host-progs)
hostprogs-y := lxdialog
always := $(hostprogs-y)
This will tell kbuild to build lxdialog even if not referenced in
any rule.
--- 4.7 Using hostprogs-$(CONFIG_FOO)
A typcal pattern in a Kbuild file lok like this:
Example:
#scripts/Makefile
hostprogs-$(CONFIG_KALLSYMS) += kallsyms
Kbuild knows about both 'y' for built-in and 'm' for module.
So if a config symbol evaluate to 'm', kbuild will still build
the binary. In other words Kbuild handle hostprogs-m exactly
like hostprogs-y. But only hostprogs-y is recommend used
when no CONFIG symbol are involved.
=== 5 Kbuild clean infrastructure
"make clean" deletes most generated files in the src tree where the kernel
is compiled. This includes generated files such as host programs.
Kbuild knows targets listed in $(host-progs), $(always), $(extra-y) and
$(targets). They are all deleted during "make clean".
Kbuild knows targets listed in $(hostprogs-y), $(hostprogs-m), $(always),
$(extra-y) and $(targets). They are all deleted during "make clean".
Files matching the patterns "*.[oas]", "*.ko", plus some additional files
generated by kbuild are deleted all over the kernel src tree when
"make clean" is executed.
......@@ -547,8 +564,17 @@ Additional files can be specified in kbuild makefiles by use of $(clean-files).
clean-files := devlist.h classlist.h
When executing "make clean", the two files "devlist.h classlist.h" will
be deleted. Kbuild knows that files specified by $(clean-files) are
located in the same directory as the makefile.
be deleted. Kbuild will assume files to be in same relative directory as the
Makefile except if an absolute path is specified (path starting with '/').
To delete a directory hirachy use:
Example:
#scripts/package/Makefile
clean-dirs := $(objtree)/debian/
This will delete the directory debian, including all subdirectories.
Kbuild will assume the directories to be in the same relative path as the
Makefile if no absolute path is specified (path does not start with '/').
Usually kbuild descends down in subdirectories due to "obj-* := dir/",
but in the architecture makefiles where the kbuild infrastructure
......@@ -914,6 +940,90 @@ When kbuild executes the following steps are followed (roughly):
will be displayed with "make KBUILD_VERBOSE=0".
--- 6.8 Preprocessing linker scripts
When the vmlinux image is build the linker script:
arch/$(ARCH)/kernel/vmlinux.lds is used.
The script is a preprocessed variant of the file vmlinux.lds.S
located in the same directory.
kbuild knows .lds file and includes a rule *lds.S -> *lds.
Example:
#arch/i386/kernel/Makefile
always := vmlinux.lds
#Makefile
export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
The assigment to $(always) is used to tell kbuild to build the
target: vmlinux.lds.
The assignment to $(CPPFLAGS_vmlinux.lds) tell kbuild to use the
specified options when building the target vmlinux.lds.
When building the *.lds target kbuild used the variakles:
CPPFLAGS : Set in top-level Makefile
EXTRA_CPPFLAGS : May be set in the kbuild makefile
CPPFLAGS_$(@F) : Target specific flags.
Note that the full filename is used in this
assignment.
The kbuild infrastructure for *lds file are used in several
architecture specific files.
--- 6.9 $(CC) support functions
The kernel may be build with several different versions of
$(CC), each supporting a unique set of features and options.
kbuild provide basic support to check for valid options for $(CC).
$(CC) is useally the gcc compiler, but other alternatives are
available.
cc-option
cc-option is used to check if $(CC) support a given option, and not
supported to use an optional second option.
Example:
#arch/i386/Makefile
cflags-y += $(call cc-option,-march=pentium-mmx,-march=i586)
In the above example cflags-y will be assigned the option
-march=pentium-mmx if supported by $(CC), otherwise -march-i586.
The second argument to cc-option is optional, and if omitted
cflags-y will be assigned no value if first option is not supported.
cc-option-yn
cc-option-yn is used to check if gcc supports a given option
and return 'y' if supported, otherwise 'n'.
Example:
#arch/ppc/Makefile
biarch := $(call cc-option-yn, -m32)
aflags-$(biarch) += -a32
cflags-$(biarch) += -m32
In the above example $(biarch) is set to y if $(CC) supports the -m32
option. When $(biarch) equals to y the expanded variables $(aflags-y)
and $(cflags-y) will be assigned the values -a32 and -m32.
cc-version
cc-version return a numerical version of the $(CC) compiler version.
The format is <major><minor> where both are two digits. So for example
gcc 3.41 would return 0341.
cc-version is useful when a specific $(CC) version is faulty in one
area, for example the -mregparm=3 were broken in some gcc version
even though the option was accepted by gcc.
Example:
#arch/i386/Makefile
GCC_VERSION := $(call cc-version)
cflags-y += $(shell \
if [ $(GCC_VERSION) -ge 0300 ] ; then echo "-mregparm=3"; fi ;)
In the above example -mregparm=3 is only used for gcc version greater
than or equal to gcc 3.0.
=== 7 Kbuild Variables
The top Makefile exports the following variables:
......
Makefile
View file @ 6aac46e3
......@@ -102,7 +102,7 @@ ifneq ($(KBUILD_OUTPUT),)
# check that the output directory actually exists
saved-output := $(KBUILD_OUTPUT)
KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
$(if $(wildcard $(KBUILD_OUTPUT)),, \
$(if $(KBUILD_OUTPUT),, \
$(error output directory "$(saved-output)" does not exist))
.PHONY: $(MAKECMDGOALS)
......@@ -256,9 +256,32 @@ ifneq ($(findstring s,$(MAKEFLAGS)),)
quiet=silent_
endif
check_gcc = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
export quiet Q KBUILD_VERBOSE
######
# cc support functions to be used (only) in arch/$(ARCH)/Makefile
# See documentation in Documentation/kbuild/makefiles.txt
# cc-option
# Usage: cflags-y += $(call gcc-option, -march=winchip-c6, -march=i586)
cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
> /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
# For backward compatibility
check_gcc = $(warning check_gcc is deprecated - use cc-option) \
$(call cc-option, $(1),$(2))
# cc-option-yn
# Usage: flag := $(call gcc-option-yn, -march=winchip-c6)
cc-option-yn = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
> /dev/null 2>&1; then echo "y"; else echo "n"; fi;)
# cc-version
# Usage gcc-ver := $(call cc-version $(CC))
cc-version = $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh \
$(if $(1), $(1), $(CC))
export quiet Q KBUILD_VERBOSE check_gcc
# Look for make include files relative to root of kernel src
MAKEFLAGS += --include-dir=$(srctree)
......@@ -285,6 +308,7 @@ DEPMOD = /sbin/depmod
KALLSYMS = scripts/kallsyms
PERL = perl
CHECK = sparse
CHECKFLAGS :=
MODFLAGS = -DMODULE
CFLAGS_MODULE = $(MODFLAGS)
AFLAGS_MODULE = $(MODFLAGS)
......@@ -294,8 +318,12 @@ AFLAGS_KERNEL =
NOSTDINC_FLAGS = -nostdinc -iwithprefix include
CPPFLAGS := -D__KERNEL__ -Iinclude \
$(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include)
# Use LINUXINCLUDE when you must reference the include/ directory.
# Needed to be compatible with the O= option
LINUXINCLUDE := -Iinclude \
$(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include)
CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE)
CFLAGS := -Wall -Wstrict-prototypes -Wno-trigraphs \
-fno-strict-aliasing -fno-common
......@@ -304,9 +332,9 @@ AFLAGS := -D__ASSEMBLY__
export VERSION PATCHLEVEL SUBLEVEL EXTRAVERSION KERNELRELEASE ARCH \
CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \
CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE \
HOSTCXX HOSTCXXFLAGS LDFLAGS_BLOB LDFLAGS_MODULE CHECK
HOSTCXX HOSTCXXFLAGS LDFLAGS_BLOB LDFLAGS_MODULE CHECK CHECKFLAGS
export CPPFLAGS NOSTDINC_FLAGS OBJCOPYFLAGS LDFLAGS
export CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
export CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
export AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
......@@ -458,7 +486,7 @@ CFLAGS += -g
endif
# warn about C99 declaration after statement
CFLAGS += $(call check_gcc,-Wdeclaration-after-statement,)
CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
#
# INSTALL_PATH specifies where to place the updated kernel and system map
......@@ -506,7 +534,6 @@ libs-y := $(libs-y1) $(libs-y2)
# normal descending-into-subdirs phase, since at that time
# we cannot yet know if we will need to relink vmlinux.
# So we descend into init/ inside the rule for vmlinux again.
head-y += $(HEAD)
vmlinux-objs := $(head-y) $(init-y) $(core-y) $(libs-y) $(drivers-y) $(net-y)
quiet_cmd_vmlinux__ = LD $@
......@@ -538,9 +565,10 @@ define rule_vmlinux__
echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd
endef
do_system_map = $(NM) $(1) | grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | sort > $(2)
LDFLAGS_vmlinux += -T arch/$(ARCH)/kernel/vmlinux.lds.s
quiet_cmd_sysmap = SYSMAP
cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
LDFLAGS_vmlinux += -T arch/$(ARCH)/kernel/vmlinux.lds
# Generate section listing all symbols and add it into vmlinux
# It's a three stage process:
......@@ -570,8 +598,10 @@ endif
kallsyms.o := .tmp_kallsyms$(last_kallsyms).o
define rule_verify_kallsyms
@$(call do_system_map, .tmp_vmlinux$(last_kallsyms), .tmp_System.map)
@cmp -s System.map .tmp_System.map || \
$(Q)$(if $($(quiet)cmd_sysmap), \
echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \
$(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map
$(Q)cmp -s System.map .tmp_System.map || \
(echo Inconsistent kallsyms data, try setting CONFIG_KALLSYMS_EXTRA_PASS ; rm .tmp_kallsyms* ; false)
endef
......@@ -581,35 +611,46 @@ cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) $(foreach x,$(CONFIG_KALLSYMS_ALL),--al
.tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE
$(call if_changed_dep,as_o_S)
.tmp_kallsyms%.S: .tmp_vmlinux%
.tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS)
$(call cmd,kallsyms)
.tmp_vmlinux1: $(vmlinux-objs) arch/$(ARCH)/kernel/vmlinux.lds.s FORCE
.tmp_vmlinux1: $(vmlinux-objs) arch/$(ARCH)/kernel/vmlinux.lds FORCE
$(call if_changed_rule,vmlinux__)
.tmp_vmlinux2: $(vmlinux-objs) .tmp_kallsyms1.o arch/$(ARCH)/kernel/vmlinux.lds.s FORCE
.tmp_vmlinux2: $(vmlinux-objs) .tmp_kallsyms1.o arch/$(ARCH)/kernel/vmlinux.lds FORCE
$(call if_changed_rule,vmlinux__)
.tmp_vmlinux3: $(vmlinux-objs) .tmp_kallsyms2.o arch/$(ARCH)/kernel/vmlinux.lds.s FORCE
.tmp_vmlinux3: $(vmlinux-objs) .tmp_kallsyms2.o arch/$(ARCH)/kernel/vmlinux.lds FORCE
$(call if_changed_rule,vmlinux__)
# Needs to visit scripts/ before $(KALLSYMS) can be used.
$(KALLSYMS): scripts ;
endif
# Finally the vmlinux rule
# Finally the vmlinux rule
# This rule is also used to generate System.map
# and to verify that the content of kallsyms are consistent
define rule_vmlinux
$(rule_vmlinux__); \
$(call do_system_map, $@, System.map)
$(rule_vmlinux__);
$(Q)$(if $($(quiet)cmd_sysmap), \
echo ' $($(quiet)cmd_sysmap) System.map' &&) \
$(cmd_sysmap) $@ System.map; \
if [ $$? -ne 0 ]; then \
rm -f $@; \
/bin/false; \
fi;
$(rule_verify_kallsyms)
endef
vmlinux: $(vmlinux-objs) $(kallsyms.o) arch/$(ARCH)/kernel/vmlinux.lds.s FORCE
vmlinux: $(vmlinux-objs) $(kallsyms.o) arch/$(ARCH)/kernel/vmlinux.lds FORCE
$(call if_changed_rule,vmlinux)
# The actual objects are generated when descending,
# make sure no implicit rule kicks in
$(sort $(vmlinux-objs)) arch/$(ARCH)/kernel/vmlinux.lds.s: $(vmlinux-dirs) ;
$(sort $(vmlinux-objs)) arch/$(ARCH)/kernel/vmlinux.lds: $(vmlinux-dirs) ;
# Handle descending into subdirectories listed in $(vmlinux-dirs)
# Preset locale variables to speed up the build process. Limit locale
......@@ -667,7 +708,7 @@ prepare-all: prepare0 prepare
# Leave this as default for preprocessing vmlinux.lds.S, which is now
# done in arch/$(ARCH)/kernel/Makefile
export AFLAGS_vmlinux.lds.o += -P -C -U$(ARCH)
export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
# Single targets
# ---------------------------------------------------------------------------
......@@ -940,7 +981,8 @@ help:
@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
@echo ' make O=dir [targets] Locate all output files in "dir", including .config'
@echo ' make C=1 [targets] Check all c source with checker tool'
@echo ' make C=1 [targets] Check all c source with $$CHECK (sparse)'
@echo ' make C=2 [targets] Force check of all c source with $$CHECK (sparse)'
@echo ''
@echo 'Execute "make" or "make all" to build all targets marked with [*] '
@echo 'For further info see the ./README file'
......
arch/alpha/Kconfig
View file @ 6aac46e3
......@@ -462,11 +462,6 @@ config ALPHA_SRM
If unsure, say N.
config EARLY_PRINTK
bool
depends on ALPHA_GENERIC || ALPHA_SRM
default y
config EISA
bool
depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
......@@ -593,104 +588,7 @@ source "fs/Kconfig"
source "arch/alpha/oprofile/Kconfig"
menu "Kernel hacking"
config ALPHA_LEGACY_START_ADDRESS
bool "Legacy kernel start address"
depends on ALPHA_GENERIC
default n
---help---
The 2.4 kernel changed the kernel start address from 0x310000
to 0x810000 to make room for the Wildfire's larger SRM console.
Recent consoles on Titan and Marvel machines also require the
extra room.
If you're using aboot 0.7 or later, the bootloader will examine the
ELF headers to determine where to transfer control. Unfortunately,
most older bootloaders -- APB or MILO -- hardcoded the kernel start
address rather than examining the ELF headers, and the result is a
hard lockup.
Say Y if you have a broken bootloader. Say N if you do not, or if
you wish to run on Wildfire, Titan, or Marvel.
config ALPHA_LEGACY_START_ADDRESS
bool
depends on !ALPHA_GENERIC && !ALPHA_TITAN && !ALPHA_MARVEL && !ALPHA_WILDFIRE
default y
config DEBUG_KERNEL
bool "Kernel debugging"
help
Say Y here if you are developing drivers or trying to debug and
identify kernel problems.
config MATHEMU
tristate "Kernel FP software completion" if DEBUG_KERNEL && !SMP
default y if !DEBUG_KERNEL || SMP
help
This option is required for IEEE compliant floating point arithmetic
on the Alpha. The only time you would ever not say Y is to say M in
order to debug the code. Say Y unless you know what you are doing.
config DEBUG_SLAB
bool "Debug memory allocations"
depends on DEBUG_KERNEL
help
Say Y here to have the kernel do limited verification on memory
allocation as well as poisoning memory on free to catch use of freed
memory.
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
config DEBUG_SPINLOCK
bool "Spinlock debugging"
depends on DEBUG_KERNEL
help
Say Y here and build SMP to catch missing spinlock initialization
and certain other kinds of spinlock errors commonly made. This is
best used in conjunction with the NMI watchdog so that spinlock
deadlocks are also debuggable.
config DEBUG_RWLOCK
bool "Read-write spinlock debugging"
depends on DEBUG_KERNEL
help
If you say Y here then read-write lock processing will count how many
times it has tried to get the lock and issue an error message after
too many attempts. If you suspect a rwlock problem or a kernel
hacker asks for this option then say Y. Otherwise say N.
config DEBUG_SEMAPHORE
bool "Semaphore debugging"
depends on DEBUG_KERNEL
help
If you say Y here then semaphore processing will issue lots of
verbose debugging messages. If you suspect a semaphore problem or a
kernel hacker asks for this option then say Y. Otherwise say N.
config DEBUG_INFO
bool "Compile the kernel with debug info"
depends on DEBUG_KERNEL
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use gdb to debug the kernel.
If you don't debug the kernel, you can say N.
endmenu
source "arch/alpha/Kconfig.debug"
source "security/Kconfig"
......
arch/alpha/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
config EARLY_PRINTK
bool
depends on ALPHA_GENERIC || ALPHA_SRM
default y
config DEBUG_RWLOCK
bool "Read-write spinlock debugging"
depends on DEBUG_KERNEL
help
If you say Y here then read-write lock processing will count how many
times it has tried to get the lock and issue an error message after
too many attempts. If you suspect a rwlock problem or a kernel
hacker asks for this option then say Y. Otherwise say N.
config DEBUG_SEMAPHORE
bool "Semaphore debugging"
depends on DEBUG_KERNEL
help
If you say Y here then semaphore processing will issue lots of
verbose debugging messages. If you suspect a semaphore problem or a
kernel hacker asks for this option then say Y. Otherwise say N.
config ALPHA_LEGACY_START_ADDRESS
bool "Legacy kernel start address"
depends on ALPHA_GENERIC
default n
---help---
The 2.4 kernel changed the kernel start address from 0x310000
to 0x810000 to make room for the Wildfire's larger SRM console.
Recent consoles on Titan and Marvel machines also require the
extra room.
If you're using aboot 0.7 or later, the bootloader will examine the
ELF headers to determine where to transfer control. Unfortunately,
most older bootloaders -- APB or MILO -- hardcoded the kernel start
address rather than examining the ELF headers, and the result is a
hard lockup.
Say Y if you have a broken bootloader. Say N if you do not, or if
you wish to run on Wildfire, Titan, or Marvel.
config ALPHA_LEGACY_START_ADDRESS
bool
depends on !ALPHA_GENERIC && !ALPHA_TITAN && !ALPHA_MARVEL && !ALPHA_WILDFIRE
default y
config MATHEMU
tristate "Kernel FP software completion" if DEBUG_KERNEL && !SMP
default y if !DEBUG_KERNEL || SMP
help
This option is required for IEEE compliant floating point arithmetic
on the Alpha. The only time you would ever not say Y is to say M in
order to debug the code. Say Y unless you know what you are doing.
endmenu
arch/alpha/Makefile
View file @ 6aac46e3
......@@ -11,7 +11,7 @@
NM := $(NM) -B
LDFLAGS_vmlinux := -static -N #-relax
CHECK := $(CHECK) -D__alpha__=1
CHECKFLAGS += -D__alpha__=1
cflags-y := -pipe -mno-fp-regs -ffixed-8
# Determine if we can use the BWX instructions with GAS.
......@@ -22,15 +22,11 @@ $(error The assembler '$(AS)' does not support the BWX instruction)
endif
# Determine if GCC understands the -mcpu= option.
have_mcpu := $(shell if $(CC) -mcpu=ev5 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
have_mcpu_pca56 := $(shell if $(CC) -mcpu=pca56 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
have_mcpu_ev6 := $(shell if $(CC) -mcpu=ev6 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
have_mcpu_ev67 := $(shell if $(CC) -mcpu=ev67 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
have_msmall_data := $(shell if $(CC) -msmall-data -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
have_mcpu := $(call cc-option-yn, -mcpu=ev5)
have_mcpu_pca56 := $(call cc-option-yn, -mcpu=pca56)
have_mcpu_ev6 := $(call cc-option-yn, -mcpu=ev6)
have_mcpu_ev67 := $(call cc-option-yn, -mcpu=ev67)
have_msmall_data := $(call cc-option-yn, -msmall-data)
cflags-$(have_msmall_data) += -msmall-data
......
arch/alpha/boot/Makefile
View file @ 6aac46e3
......@@ -8,7 +8,7 @@
# Copyright (C) 1994 by Linus Torvalds
#
host-progs := tools/mkbb tools/objstrip
hostprogs-y := tools/mkbb tools/objstrip
targets := vmlinux.gz vmlinux \
vmlinux.nh tools/lxboot tools/bootlx tools/bootph \
tools/bootpzh bootloader bootpheader bootpzheader
......
arch/alpha/kernel/Makefile
View file @ 6aac46e3
......@@ -2,7 +2,7 @@
# Makefile for the linux kernel.
#
extra-y := head.o vmlinux.lds.s
extra-y := head.o vmlinux.lds
EXTRA_AFLAGS := $(CFLAGS)
EXTRA_CFLAGS := -Werror -Wno-sign-compare
......
arch/arm/Kconfig
View file @ 6aac46e3
......@@ -65,7 +65,6 @@ config GENERIC_ISA_DMA
source "init/Kconfig"
menu "System Type"
choice
......@@ -252,7 +251,6 @@ config XSCALE_PMU
endmenu
menu "General setup"
# Select various configuration options depending on the machine type
......@@ -666,169 +664,10 @@ source "drivers/misc/Kconfig"
source "drivers/usb/Kconfig"
menu "Kernel hacking"
# RMK wants arm kernels compiled with frame pointers so hardwire this to y.
# If you know what you are doing and are willing to live without stack
# traces, you can get a slightly smaller kernel by setting this option to
# n, but then RMK will have to kill you ;).
config FRAME_POINTER
bool
default y
help
If you say N here, the resulting kernel will be slightly smaller and
faster. However, when a problem occurs with the kernel, the
information that is reported is severely limited. Most people
should say Y here.
config DEBUG_USER
bool "Verbose user fault messages"
help
When a user program crashes due to an exception, the kernel can
print a brief message explaining what the problem was. This is
sometimes helpful for debugging but serves no purpose on a
production system. Most people should say N here.
In addition, you need to pass user_debug=N on the kernel command
line to enable this feature. N consists of the sum of:
1 - undefined instruction events
2 - system calls
4 - invalid data aborts
8 - SIGSEGV faults
16 - SIGBUS faults
config DEBUG_INFO
bool "Include GDB debugging information in kernel binary"
help
Say Y here to include source-level debugging information in the
`vmlinux' binary image. This is handy if you want to use gdb or
addr2line to debug the kernel. It has no impact on the in-memory
footprint of the running kernel but it can increase the amount of
time and disk space needed for compilation of the kernel. If in
doubt say N.
config DEBUG_KERNEL
bool "Kernel debugging"
help
Say Y here if you are developing drivers or trying to debug and
identify kernel problems.
config DEBUG_SLAB
bool "Debug memory allocations"
depends on DEBUG_KERNEL
help
Say Y here to have the kernel do limited verification on memory
allocation as well as poisoning memory on free to catch use of freed
memory.
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
config DEBUG_SPINLOCK
bool "Spinlock debugging"
depends on DEBUG_KERNEL
help
Say Y here and build SMP to catch missing spinlock initialization
and certain other kinds of spinlock errors commonly made. This is
best used in conjunction with the NMI watchdog so that spinlock
deadlocks are also debuggable.
config DEBUG_WAITQ
bool "Wait queue debugging"
depends on DEBUG_KERNEL
config DEBUG_BUGVERBOSE
bool "Verbose BUG() reporting (adds 70K)"
depends on DEBUG_KERNEL
help
Say Y here to make BUG() panics output the file name and line number
of the BUG call as well as the EIP and oops trace. This aids
debugging but costs about 70-100K of memory.
config DEBUG_ERRORS
bool "Verbose kernel error messages"
depends on DEBUG_KERNEL
help
This option controls verbose debugging information which can be
printed when the kernel detects an internal error. This debugging
information is useful to kernel hackers when tracking down problems,
but mostly meaningless to other people. It's safe to say Y unless
you are concerned with the code size or don't want to see these
messages.
# These options are only for real kernel hackers who want to get their hands dirty.
config DEBUG_LL
bool "Kernel low-level debugging functions"
depends on DEBUG_KERNEL
help
Say Y here to include definitions of printascii, printchar, printhex
in the kernel. This is helpful if you are debugging code that
executes before the console is initialized.
config DEBUG_ICEDCC
bool "Kernel low-level debugging via EmbeddedICE DCC channel"
depends on DEBUG_LL
help
Say Y here if you want the debug print routines to direct their
output to the EmbeddedICE macrocell's DCC channel using
co-processor 14. This is known to work on the ARM9 style ICE
channel.
It does include a timeout to ensure that the system does not
totally freeze when there is nothing connected to read.
config DEBUG_DC21285_PORT
bool "Kernel low-level debugging messages via footbridge serial port"
depends on DEBUG_LL && FOOTBRIDGE
help
Say Y here if you want the debug print routines to direct their
output to the serial port in the DC21285 (Footbridge). Saying N
will cause the debug messages to appear on the first 16550
serial port.
config DEBUG_CLPS711X_UART2
bool "Kernel low-level debugging messages via UART2"
depends on DEBUG_LL && ARCH_CLPS711X
help
Say Y here if you want the debug print routines to direct their
output to the second serial port on these devices. Saying N will
cause the debug messages to appear on the first serial port.
config DEBUG_S3C2410_PORT
depends on DEBUG_LL && ARCH_S3C2410
bool "Kernel low-level debugging messages via S3C2410 UART"
help
Say Y here if you want debug print routines to go to one of the
S3C2410 internal UARTs. The chosen UART must have been configured
before it is used.
config DEBUG_S3C2410_UART
depends on DEBUG_LL && ARCH_S3C2410
int "S3C2410 UART to use for low-level debug"
default "0"
help
Choice for UART for kernel low-level using S3C2410 UARTS,
should be between zero and two. The port must have been
initalised by the boot-loader before use.
endmenu
source "arch/arm/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
arch/arm/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
# RMK wants arm kernels compiled with frame pointers so hardwire this to y.
# If you know what you are doing and are willing to live without stack
# traces, you can get a slightly smaller kernel by setting this option to
# n, but then RMK will have to kill you ;).
config FRAME_POINTER
bool
default y
help
If you say N here, the resulting kernel will be slightly smaller and
faster. However, when a problem occurs with the kernel, the
information that is reported is severely limited. Most people
should say Y here.
config DEBUG_USER
bool "Verbose user fault messages"
help
When a user program crashes due to an exception, the kernel can
print a brief message explaining what the problem was. This is
sometimes helpful for debugging but serves no purpose on a
production system. Most people should say N here.
In addition, you need to pass user_debug=N on the kernel command
line to enable this feature. N consists of the sum of:
1 - undefined instruction events
2 - system calls
4 - invalid data aborts
8 - SIGSEGV faults
16 - SIGBUS faults
config DEBUG_WAITQ
bool "Wait queue debugging"
depends on DEBUG_KERNEL
config DEBUG_ERRORS
bool "Verbose kernel error messages"
depends on DEBUG_KERNEL
help
This option controls verbose debugging information which can be
printed when the kernel detects an internal error. This debugging
information is useful to kernel hackers when tracking down problems,
but mostly meaningless to other people. It's safe to say Y unless
you are concerned with the code size or don't want to see these
messages.
config DEBUG_INFO
bool "Include GDB debugging information in kernel binary"
help
Say Y here to include source-level debugging information in the
`vmlinux' binary image. This is handy if you want to use gdb or
addr2line to debug the kernel. It has no impact on the in-memory
footprint of the running kernel but it can increase the amount of
time and disk space needed for compilation of the kernel. If in
doubt say N.
# These options are only for real kernel hackers who want to get their hands dirty.
config DEBUG_LL
bool "Kernel low-level debugging functions"
depends on DEBUG_KERNEL
help
Say Y here to include definitions of printascii, printchar, printhex
in the kernel. This is helpful if you are debugging code that
executes before the console is initialized.
config DEBUG_ICEDCC
bool "Kernel low-level debugging via EmbeddedICE DCC channel"
depends on DEBUG_LL
help
Say Y here if you want the debug print routines to direct their
output to the EmbeddedICE macrocell's DCC channel using
co-processor 14. This is known to work on the ARM9 style ICE
channel.
It does include a timeout to ensure that the system does not
totally freeze when there is nothing connected to read.
config DEBUG_DC21285_PORT
bool "Kernel low-level debugging messages via footbridge serial port"
depends on DEBUG_LL && FOOTBRIDGE
help
Say Y here if you want the debug print routines to direct their
output to the serial port in the DC21285 (Footbridge). Saying N
will cause the debug messages to appear on the first 16550
serial port.
config DEBUG_CLPS711X_UART2
bool "Kernel low-level debugging messages via UART2"
depends on DEBUG_LL && ARCH_CLPS711X
help
Say Y here if you want the debug print routines to direct their
output to the second serial port on these devices. Saying N will
cause the debug messages to appear on the first serial port.
config DEBUG_S3C2410_PORT
depends on DEBUG_LL && ARCH_S3C2410
bool "Kernel low-level debugging messages via S3C2410 UART"
help
Say Y here if you want debug print routines to go to one of the
S3C2410 internal UARTs. The chosen UART must have been configured
before it is used.
config DEBUG_S3C2410_UART
depends on DEBUG_LL && ARCH_S3C2410
int "S3C2410 UART to use for low-level debug"
default "0"
help
Choice for UART for kernel low-level using S3C2410 UARTS,
should be between zero and two. The port must have been
initalised by the boot-loader before use.
endmenu
arch/arm/Makefile
View file @ 6aac46e3
......@@ -9,7 +9,7 @@
LDFLAGS_vmlinux :=-p --no-undefined -X
LDFLAGS_BLOB :=--format binary
AFLAGS_vmlinux.lds.o = -DTEXTADDR=$(TEXTADDR) -DDATAADDR=$(DATAADDR)
CPPFLAGS_vmlinux.lds = -DTEXTADDR=$(TEXTADDR) -DDATAADDR=$(DATAADDR)
OBJCOPYFLAGS :=-O binary -R .note -R .comment -S
GZFLAGS :=-9
#CFLAGS +=-pipe
......@@ -36,8 +36,8 @@ comma = ,
# Note that GCC does not numerically define an architecture version
# macro, but instead defines a whole series of macros which makes
# testing for a specific architecture or later rather impossible.
arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call check_gcc,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call check_gcc,-march=armv5te,-march=armv4)
arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4)
arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4
arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3
......@@ -51,14 +51,14 @@ tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi
tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi
tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110
tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100
tune-$(CONFIG_CPU_XSCALE) :=$(call check_gcc,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
tune-$(CONFIG_CPU_V6) :=-mtune=strongarm
# Need -Uarm for gcc < 3.x
CFLAGS +=-mapcs-32 $(arch-y) $(tune-y) $(call check_gcc,-malignment-traps,-mshort-load-bytes) -msoft-float -Wa,-mno-fpu -Uarm
CFLAGS +=-mapcs-32 $(arch-y) $(tune-y) $(call cc-option,-malignment-traps,-mshort-load-bytes) -msoft-float -Wa,-mno-fpu -Uarm
AFLAGS +=-mapcs-32 $(arch-y) $(tune-y) -msoft-float -Wa,-mno-fpu
CHECK := $(CHECK) -D__arm__=1
CHECKFLAGS += -D__arm__=1
#Default value
DATAADDR := .
......
arch/arm/kernel/Makefile
View file @ 6aac46e3
......@@ -29,7 +29,7 @@ endif
head-y := head.o
obj-$(CONFIG_DEBUG_LL) += debug.o
extra-y := $(head-y) init_task.o vmlinux.lds.s
extra-y := $(head-y) init_task.o vmlinux.lds
# Spell out some dependencies that aren't automatically figured out
$(obj)/entry-armv.o: $(obj)/entry-header.S include/asm-arm/constants.h
......
arch/arm26/Kconfig
View file @ 6aac46e3
......@@ -62,7 +62,7 @@ config ARCH_ARC
bool "Archimedes"
help
Say Y to support the Acorn Archimedes.
The Acorn Archimedes was an personal computer based on an 8MHz ARM2
processor, released in 1987. It supported up to 16MB of RAM in
later models and floppy, harddisc, ethernet etc.
......@@ -71,7 +71,7 @@ config ARCH_A5K
bool "A5000"
help
Say Y here to to support the Acorn A5000.
Linux can support the
internal IDE disk and CD-ROM interface, serial and parallel port,
and the floppy drive. Note that on some A5000s the floppy is
......@@ -214,118 +214,7 @@ source "drivers/misc/Kconfig"
source "drivers/usb/Kconfig"
menu "Kernel hacking"
# RMK wants arm kernels compiled with frame pointers so hardwire this to y.
# If you know what you are doing and are willing to live without stack
# traces, you can get a slightly smaller kernel by setting this option to
# n, but then RMK will have to kill you ;).
config FRAME_POINTER
bool
default y
help
If you say N here, the resulting kernel will be slightly smaller and
faster. However, when a problem occurs with the kernel, the
information that is reported is severely limited. Most people
should say Y here.
config DEBUG_USER
bool "Verbose user fault messages"
help
When a user program crashes due to an exception, the kernel can
print a brief message explaining what the problem was. This is
sometimes helpful for debugging but serves no purpose on a
production system. Most people should say N here.
config DEBUG_INFO
bool "Include GDB debugging information in kernel binary"
help
Say Y here to include source-level debugging information in the
`vmlinux' binary image. This is handy if you want to use gdb or
addr2line to debug the kernel. It has no impact on the in-memory
footprint of the running kernel but it can increase the amount of
time and disk space needed for compilation of the kernel. If in
doubt say N.
config DEBUG_KERNEL
bool "Kernel debugging"
help
Say Y here if you are developing drivers or trying to debug and
identify kernel problems.
config DEBUG_SLAB
bool "Debug memory allocations"
depends on DEBUG_KERNEL
help
Say Y here to have the kernel do limited verification on memory
allocation as well as poisoning memory on free to catch use of freed
memory.
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
config DEBUG_SPINLOCK
bool "Spinlock debugging"
depends on DEBUG_KERNEL
help
Say Y here and build SMP to catch missing spinlock initialization
and certain other kinds of spinlock errors commonly made. This is
best used in conjunction with the NMI watchdog so that spinlock
deadlocks are also debuggable.
config DEBUG_WAITQ
bool "Wait queue debugging"
depends on DEBUG_KERNEL
config DEBUG_BUGVERBOSE
bool "Verbose BUG() reporting (adds 70K)"
depends on DEBUG_KERNEL
help
Say Y here to make BUG() panics output the file name and line number
of the BUG call as well as the EIP and oops trace. This aids
debugging but costs about 70-100K of memory.
config DEBUG_ERRORS
bool "Verbose kernel error messages"
depends on DEBUG_KERNEL
help
This option controls verbose debugging information which can be
printed when the kernel detects an internal error. This debugging
information is useful to kernel hackers when tracking down problems,
but mostly meaningless to other people. It's safe to say Y unless
you are concerned with the code size or don't want to see these
messages.
config DEBUG_INFO
bool "Compile the kernel with debug info"
depends on DEBUG_KERNEL
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use gdb to debug the kernel.
If you don't debug the kernel, you can say N.
# These options are only for real kernel hackers who want to get their hands dirty.
config DEBUG_LL
bool "Kernel low-level debugging functions"
depends on DEBUG_KERNEL
help
Say Y here to include definitions of printascii, printchar, printhex
in the kernel. This is helpful if you are debugging code that
executes before the console is initialized.
endmenu
source "arch/arm26/Kconfig.debug"
source "security/Kconfig"
......
arch/arm26/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
# RMK wants arm kernels compiled with frame pointers so hardwire this to y.
# If you know what you are doing and are willing to live without stack
# traces, you can get a slightly smaller kernel by setting this option to
# n, but then RMK will have to kill you ;).
config FRAME_POINTER
bool
default y
help
If you say N here, the resulting kernel will be slightly smaller and
faster. However, when a problem occurs with the kernel, the
information that is reported is severely limited. Most people
should say Y here.
config DEBUG_USER
bool "Verbose user fault messages"
help
When a user program crashes due to an exception, the kernel can
print a brief message explaining what the problem was. This is
sometimes helpful for debugging but serves no purpose on a
production system. Most people should say N here.
config DEBUG_WAITQ
bool "Wait queue debugging"
depends on DEBUG_KERNEL
config DEBUG_ERRORS
bool "Verbose kernel error messages"
depends on DEBUG_KERNEL
help
This option controls verbose debugging information which can be
printed when the kernel detects an internal error. This debugging
information is useful to kernel hackers when tracking down problems,
but mostly meaningless to other people. It's safe to say Y unless
you are concerned with the code size or don't want to see these
messages.
config DEBUG_INFO
bool "Include GDB debugging information in kernel binary"
help
Say Y here to include source-level debugging information in the
`vmlinux' binary image. This is handy if you want to use gdb or
addr2line to debug the kernel. It has no impact on the in-memory
footprint of the running kernel but it can increase the amount of
time and disk space needed for compilation of the kernel. If in
doubt say N.
# These options are only for real kernel hackers who want to get their hands dirty.
config DEBUG_LL
bool "Kernel low-level debugging functions"
depends on DEBUG_KERNEL
help
Say Y here to include definitions of printascii, printchar, printhex
in the kernel. This is helpful if you are debugging code that
executes before the console is initialized.
endmenu
arch/arm26/Makefile
View file @ 6aac46e3
......@@ -9,7 +9,7 @@
LDFLAGS_vmlinux :=-p -X
LDFLAGS_BLOB :=--format binary
AFLAGS_vmlinux.lds.o = -DTEXTADDR=$(TEXTADDR) -DDATAADDR=$(DATAADDR)
CPPFLAGS_vmlinux.lds = -DTEXTADDR=$(TEXTADDR) -DDATAADDR=$(DATAADDR)
OBJCOPYFLAGS :=-O binary -R .note -R .comment -S
GZFLAGS :=-9
......
arch/arm26/kernel/Makefile
View file @ 6aac46e3
......@@ -14,5 +14,5 @@ obj-y := compat.o dma.o entry.o irq.o \
obj-$(CONFIG_FIQ) += fiq.o
obj-$(CONFIG_MODULES) += armksyms.o
extra-y := init_task.o vmlinux.lds.s
extra-y := init_task.o vmlinux.lds
arch/cris/Kconfig
View file @ 6aac46e3
......@@ -20,8 +20,11 @@ config RWSEM_GENERIC_SPINLOCK
config RWSEM_XCHGADD_ALGORITHM
bool
source "init/Kconfig"
config CRIS
bool
default y
source "init/Kconfig"
menu "General setup"
......@@ -51,7 +54,7 @@ config ETRAX_FAST_TIMER
bool "Enable ETRAX fast timer API"
help
This options enables the API to a fast timer implementation using
timer1 to get sub jiffie resolution timers (primarily one-shot
timer1 to get sub jiffie resolution timers (primarily one-shot
timers).
This is needed if CONFIG_ETRAX_SERIAL_FAST_TIMER is enabled.
......@@ -69,7 +72,6 @@ config PREEMPT
endmenu
menu "Hardware setup"
choice
......@@ -96,7 +98,7 @@ endchoice
config ETRAX_ARCH_V10
bool
default y if ETRAX100LX || ETRAX100LX_V2
default n if !(ETRAX100LX || ETRAX100LX_V2)
default n if !(ETRAX100LX || ETRAX100LX_V2)
config ETRAX_DRAM_SIZE
int "DRAM size (dec, in MB)"
......@@ -165,54 +167,10 @@ source "sound/Kconfig"
source "drivers/usb/Kconfig"
menu "Kernel hacking"
#bool 'Debug kmalloc/kfree' CONFIG_DEBUG_MALLOC
config PROFILE
bool "Kernel profiling support"
config PROFILE_SHIFT
int "Profile shift count"
depends on PROFILE
default "2"
config ETRAX_KGDB
bool "Use kernel GDB debugger"
---help---
The CRIS version of gdb can be used to remotely debug a running
Linux kernel via the serial debug port. Provided you have gdb-cris
installed, run gdb-cris vmlinux, then type
(gdb) set remotebaud 115200 <- kgdb uses 115200 as default
(gdb) target remote /dev/ttyS0 <- maybe you use another port
This should connect you to your booted kernel (or boot it now if you
didn't before). The kernel halts when it boots, waiting for gdb if
this option is turned on!
config DEBUG_INFO
bool "Compile the kernel with debug info"
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use gdb to debug the kernel.
If you don't debug the kernel, you can say N.
config FRAME_POINTER
bool "Compile the kernel with frame pointers"
help
If you say Y here the resulting kernel image will be slightly larger
and slower, but it will give very useful debugging information.
If you don't debug the kernel, you can say N, but we may not be able
to solve problems without frame pointers.
endmenu
source "arch/cris/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
arch/cris/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
#bool 'Debug kmalloc/kfree' CONFIG_DEBUG_MALLOC
config PROFILE
bool "Kernel profiling support"
config PROFILE_SHIFT
int "Profile shift count"
depends on PROFILE
default "2"
config ETRAX_KGDB
bool "Use kernel GDB debugger"
---help---
The CRIS version of gdb can be used to remotely debug a running
Linux kernel via the serial debug port. Provided you have gdb-cris
installed, run gdb-cris vmlinux, then type
(gdb) set remotebaud 115200 <- kgdb uses 115200 as default
(gdb) target remote /dev/ttyS0 <- maybe you use another port
This should connect you to your booted kernel (or boot it now if you
didn't before). The kernel halts when it boots, waiting for gdb if
this option is turned on!
endmenu
arch/cris/Makefile
View file @ 6aac46e3
......@@ -29,7 +29,7 @@ LDFLAGS_BLOB := --format binary --oformat elf32-cris \
OBJCOPYFLAGS := -O binary -R .note -R .comment -S
AFLAGS_vmlinux.lds.o = -DDRAM_VIRTUAL_BASE=0x$(CONFIG_ETRAX_DRAM_VIRTUAL_BASE)
CPPFLAGS_vmlinux.lds = -DDRAM_VIRTUAL_BASE=0x$(CONFIG_ETRAX_DRAM_VIRTUAL_BASE)
AFLAGS += -mlinux
CFLAGS := $(CFLAGS) -mlinux -march=$(arch-y) -pipe
......@@ -39,7 +39,7 @@ CFLAGS := $(subst -fomit-frame-pointer,,$(CFLAGS)) -g
CFLAGS += -fno-omit-frame-pointer
endif
HEAD := arch/$(ARCH)/$(SARCH)/kernel/head.o
head-y := arch/$(ARCH)/$(SARCH)/kernel/head.o
LIBGCC = $(shell $(CC) $(CFLAGS) -print-file-name=libgcc.a)
......
arch/cris/kernel/Makefile
View file @ 6aac46e3
......@@ -3,7 +3,7 @@
# Makefile for the linux kernel.
#
extra-y := vmlinux.lds.s
extra-y := vmlinux.lds
obj-y := process.o traps.o irq.o ptrace.o setup.o \
time.o sys_cris.o semaphore.o
......
arch/h8300/Kconfig
View file @ 6aac46e3
......@@ -176,86 +176,15 @@ source "drivers/serial/Kconfig"
source "drivers/i2c/Kconfig"
source "drivers/usb/Kconfig"
endmenu
source "fs/Kconfig"
menu "Kernel hacking"
config FULLDEBUG
bool "Full Symbolic/Source Debugging support"
help
Enable debugging symbols on kernel build.
config MAGIC_SYSRQ
bool "Magic SysRq key"
help
Enables console device to interprent special characters as
commands to dump state information.
config HIGHPROFILE
bool "Use fast second timer for profiling"
help
Use a fast secondary clock to produce profiling information.
config NO_KERNEL_MSG
bool "Suppress Kernel BUG Messages"
help
Do not output any debug BUG messages within the kernel.
config GDB_MAGICPRINT
bool "Message Output for GDB MagicPrint service"
depends on (H8300H_SIM || H8S_SIM)
help
kernel messages output useing MagicPrint service from GDB
config SYSCALL_PRINT
bool "SystemCall trace print"
help
outout history of systemcall
config GDB_DEBUG
bool "Use gdb stub"
depends on (!H8300H_SIM && !H8S_SIM)
help
gdb stub exception support
config CONFIG_SH_STANDARD_BIOS
bool "Use gdb protocol serial console"
depends on (!H8300H_SIM && !H8S_SIM)
help
serial console output using GDB protocol.
Require eCos/RedBoot
config DEFAULT_CMDLINE
bool "Use buildin commandline"
default n
help
buildin kernel commandline enabled.
config KERNEL_COMMAND
string "Buildin commmand string"
depends on DEFAULT_CMDLINE
help
buildin kernel commandline strings.
config BLKDEV_RESERVE
bool "BLKDEV Reserved Memory"
default n
help
Reserved BLKDEV area.
config CONFIG_BLKDEV_RESERVE_ADDRESS
hex 'start address'
depends on BLKDEV_RESERVE
help
BLKDEV start address.
endmenu
source "arch/h8300/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
arch/h8300/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
config FULLDEBUG
bool "Full Symbolic/Source Debugging support"
help
Enable debugging symbols on kernel build.
config HIGHPROFILE
bool "Use fast second timer for profiling"
help
Use a fast secondary clock to produce profiling information.
config NO_KERNEL_MSG
bool "Suppress Kernel BUG Messages"
help
Do not output any debug BUG messages within the kernel.
config GDB_MAGICPRINT
bool "Message Output for GDB MagicPrint service"
depends on (H8300H_SIM || H8S_SIM)
help
kernel messages output useing MagicPrint service from GDB
config SYSCALL_PRINT
bool "SystemCall trace print"
help
outout history of systemcall
config GDB_DEBUG
bool "Use gdb stub"
depends on (!H8300H_SIM && !H8S_SIM)
help
gdb stub exception support
config CONFIG_SH_STANDARD_BIOS
bool "Use gdb protocol serial console"
depends on (!H8300H_SIM && !H8S_SIM)
help
serial console output using GDB protocol.
Require eCos/RedBoot
config DEFAULT_CMDLINE
bool "Use buildin commandline"
default n
help
buildin kernel commandline enabled.
config KERNEL_COMMAND
string "Buildin commmand string"
depends on DEFAULT_CMDLINE
help
buildin kernel commandline strings.
config BLKDEV_RESERVE
bool "BLKDEV Reserved Memory"
default n
help
Reserved BLKDEV area.
config CONFIG_BLKDEV_RESERVE_ADDRESS
hex 'start address'
depends on BLKDEV_RESERVE
help
BLKDEV start address.
endmenu
arch/h8300/kernel/Makefile
View file @ 6aac46e3
......@@ -2,7 +2,7 @@
# Makefile for the linux kernel.
#
extra-y := vmlinux.lds.s
extra-y := vmlinux.lds
obj-y := process.o traps.o ptrace.o ints.o \
sys_h8300.o time.o semaphore.o signal.o \
......
arch/i386/Kconfig
View file @ 6aac46e3
......@@ -31,7 +31,6 @@ config GENERIC_ISA_DMA
source "init/Kconfig"
menu "Processor type and features"
choice
......@@ -55,20 +54,20 @@ config X86_ELAN
config X86_VOYAGER
bool "Voyager (NCR)"
help
Voyager is a MCA based 32 way capable SMP architecture proprietary
to NCR Corp. Machine classes 345x/35xx/4100/51xx are voyager based.
Voyager is an MCA-based 32-way capable SMP architecture proprietary
to NCR Corp. Machine classes 345x/35xx/4100/51xx are Voyager-based.
*** WARNING ***
If you do not specifically know you have a Voyager based machine,
say N here otherwise the kernel you build will not be bootable.
say N here, otherwise the kernel you build will not be bootable.
config X86_NUMAQ
bool "NUMAQ (IBM/Sequent)"
select DISCONTIGMEM
select NUMA
help
This option is used for getting Linux to run on a (IBM/Sequent) NUMA
This option is used for getting Linux to run on a (IBM/Sequent) NUMA
multiquad box. This changes the way that processors are bootstrapped,
and uses Clustered Logical APIC addressing mode instead of Flat Logical.
You will need a new lynxer.elf file to flash your firmware with - send
......@@ -115,8 +114,8 @@ config X86_ES7000
depends on SMP
help
Support for Unisys ES7000 systems. Say 'Y' here if this kernel is
supposed to run on an IA32-based Unisys ES7000 system.
Only choose this option if you have such a system, otherwise you
supposed to run on an IA32-based Unisys ES7000 system.
Only choose this option if you have such a system, otherwise you
should say N here.
endchoice
......@@ -322,7 +321,7 @@ config MVIAC3_2
endchoice
config X86_GENERIC
bool "Generic x86 support"
bool "Generic x86 support"
help
Instead of just including optimizations for the selected
x86 variant (e.g. PII, Crusoe or Athlon), include some more
......@@ -1027,7 +1026,6 @@ source "arch/i386/kernel/cpu/cpufreq/Kconfig"
endmenu
menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
config X86_VISWS_APIC
......@@ -1158,7 +1156,7 @@ config SCx200
tristate "NatSemi SCx200 support"
depends on !X86_VOYAGER
help
This provides basic support for the National Semiconductor SCx200
This provides basic support for the National Semiconductor SCx200
processor. Right now this is just a driver for the GPIO pins.
If you don't know what to do here, say N.
......@@ -1172,7 +1170,6 @@ source "drivers/pci/hotplug/Kconfig"
endmenu
menu "Executable file formats"
source "fs/Kconfig.binfmt"
......@@ -1185,130 +1182,7 @@ source "fs/Kconfig"
source "arch/i386/oprofile/Kconfig"
menu "Kernel hacking"
config DEBUG_KERNEL
bool "Kernel debugging"
help
Say Y here if you are developing drivers or trying to debug and
identify kernel problems.
config EARLY_PRINTK
bool "Early printk" if EMBEDDED
default y
help
Write kernel log output directly into the VGA buffer or to a serial
port.
This is useful for kernel debugging when your machine crashes very
early before the console code is initialized. For normal operation
it is not recommended because it looks ugly and doesn't cooperate
with klogd/syslogd or the X server. You should normally N here,
unless you want to debug such a crash.
config DEBUG_STACKOVERFLOW
bool "Check for stack overflows"
depends on DEBUG_KERNEL
config DEBUG_STACK_USAGE
bool "Stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config DEBUG_SLAB
bool "Debug memory allocations"
depends on DEBUG_KERNEL
help
Say Y here to have the kernel do limited verification on memory
allocation as well as poisoning memory on free to catch use of freed
memory.
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
config DEBUG_SPINLOCK
bool "Spinlock debugging"
depends on DEBUG_KERNEL
help
Say Y here and build SMP to catch missing spinlock initialization
and certain other kinds of spinlock errors commonly made. This is
best used in conjunction with the NMI watchdog so that spinlock
deadlocks are also debuggable.
config DEBUG_PAGEALLOC
bool "Page alloc debugging"
depends on DEBUG_KERNEL
help
Unmap pages from the kernel linear mapping after free_pages().
This results in a large slowdown, but helps to find certain types
of memory corruptions.
config DEBUG_HIGHMEM
bool "Highmem debugging"
depends on DEBUG_KERNEL && HIGHMEM
help
This options enables addition error checking for high memory systems.
Disable for production systems.
config DEBUG_INFO
bool "Compile the kernel with debug info"
depends on DEBUG_KERNEL
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use gdb to debug the kernel.
If you don't debug the kernel, you can say N.
config DEBUG_SPINLOCK_SLEEP
bool "Sleep-inside-spinlock checking"
help
If you say Y here, various routines which may sleep will become very
noisy if they are called with a spinlock held.
config FRAME_POINTER
bool "Compile the kernel with frame pointers"
help
If you say Y here the resulting kernel image will be slightly larger
and slower, but it will give very useful debugging information.
If you don't debug the kernel, you can say N, but we may not be able
to solve problems without frame pointers.
config 4KSTACKS
bool "Use 4Kb for kernel stacks instead of 8Kb"
help
If you say Y here the kernel will use a 4Kb stacksize for the
kernel stack attached to each process/thread. This facilitates
running more threads on a system and also reduces the pressure
on the VM subsystem for higher order allocations. This option
will also use IRQ stacks to compensate for the reduced stackspace.
config X86_FIND_SMP_CONFIG
bool
depends on X86_LOCAL_APIC || X86_VOYAGER
default y
config X86_MPPARSE
bool
depends on X86_LOCAL_APIC && !X86_VISWS
default y
endmenu
source "arch/i386/Kconfig.debug"
source "security/Kconfig"
......
arch/i386/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
config EARLY_PRINTK
bool "Early printk" if EMBEDDED
default y
help
Write kernel log output directly into the VGA buffer or to a serial
port.
This is useful for kernel debugging when your machine crashes very
early before the console code is initialized. For normal operation
it is not recommended because it looks ugly and doesn't cooperate
with klogd/syslogd or the X server. You should normally N here,
unless you want to debug such a crash.
config DEBUG_STACKOVERFLOW
bool "Check for stack overflows"
depends on DEBUG_KERNEL
config DEBUG_STACK_USAGE
bool "Stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config DEBUG_PAGEALLOC
bool "Page alloc debugging"
depends on DEBUG_KERNEL
help
Unmap pages from the kernel linear mapping after free_pages().
This results in a large slowdown, but helps to find certain types
of memory corruptions.
config 4KSTACKS
bool "Use 4Kb for kernel stacks instead of 8Kb"
help
If you say Y here the kernel will use a 4Kb stacksize for the
kernel stack attached to each process/thread. This facilitates
running more threads on a system and also reduces the pressure
on the VM subsystem for higher order allocations. This option
will also use IRQ stacks to compensate for the reduced stackspace.
config X86_FIND_SMP_CONFIG
bool
depends on X86_LOCAL_APIC || X86_VOYAGER
default y
config X86_MPPARSE
bool
depends on X86_LOCAL_APIC && !X86_VISWS
default y
endmenu
arch/i386/Makefile
View file @ 6aac46e3
......@@ -18,48 +18,47 @@
LDFLAGS := -m elf_i386
OBJCOPYFLAGS := -O binary -R .note -R .comment -S
LDFLAGS_vmlinux :=
CHECK := $(CHECK) -D__i386__=1
CHECKFLAGS += -D__i386__=1
CFLAGS += -pipe -msoft-float
# prevent gcc from keeping the stack 16 byte aligned
CFLAGS += $(call check_gcc,-mpreferred-stack-boundary=2,)
align := $(subst -functions=0,,$(call check_gcc,-falign-functions=0,-malign-functions=0))
CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
align := $(subst -functions=0,,$(call cc-option,-falign-functions=0,-malign-functions=0))
cflags-$(CONFIG_M386) += -march=i386
cflags-$(CONFIG_M486) += -march=i486
cflags-$(CONFIG_M586) += -march=i586
cflags-$(CONFIG_M586TSC) += -march=i586
cflags-$(CONFIG_M586MMX) += $(call check_gcc,-march=pentium-mmx,-march=i586)
cflags-$(CONFIG_M586MMX) += $(call cc-option,-march=pentium-mmx,-march=i586)
cflags-$(CONFIG_M686) += -march=i686
cflags-$(CONFIG_MPENTIUMII) += $(call check_gcc,-march=pentium2,-march=i686)
cflags-$(CONFIG_MPENTIUMIII) += $(call check_gcc,-march=pentium3,-march=i686)
cflags-$(CONFIG_MPENTIUMM) += $(call check_gcc,-march=pentium3,-march=i686)
cflags-$(CONFIG_MPENTIUM4) += $(call check_gcc,-march=pentium4,-march=i686)
cflags-$(CONFIG_MPENTIUMII) += $(call cc-option,-march=pentium2,-march=i686)
cflags-$(CONFIG_MPENTIUMIII) += $(call cc-option,-march=pentium3,-march=i686)
cflags-$(CONFIG_MPENTIUMM) += $(call cc-option,-march=pentium3,-march=i686)
cflags-$(CONFIG_MPENTIUM4) += $(call cc-option,-march=pentium4,-march=i686)
cflags-$(CONFIG_MK6) += -march=k6
# Please note, that patches that add -march=athlon-xp and friends are pointless.
# They make zero difference whatsosever to performance at this time.
cflags-$(CONFIG_MK7) += $(call check_gcc,-march=athlon,-march=i686 $(align)-functions=4)
cflags-$(CONFIG_MK8) += $(call check_gcc,-march=k8,$(call check_gcc,-march=athlon,-march=i686 $(align)-functions=4))
cflags-$(CONFIG_MK7) += $(call cc-option,-march=athlon,-march=i686 $(align)-functions=4)
cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8,$(call cc-option,-march=athlon,-march=i686 $(align)-functions=4))
cflags-$(CONFIG_MCRUSOE) += -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
cflags-$(CONFIG_MWINCHIPC6) += $(call check_gcc,-march=winchip-c6,-march=i586)
cflags-$(CONFIG_MWINCHIP2) += $(call check_gcc,-march=winchip2,-march=i586)
cflags-$(CONFIG_MWINCHIP3D) += $(call check_gcc,-march=winchip2,-march=i586)
cflags-$(CONFIG_MCYRIXIII) += $(call check_gcc,-march=c3,-march=i486) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
cflags-$(CONFIG_MVIAC3_2) += $(call check_gcc,-march=c3-2,-march=i686)
cflags-$(CONFIG_MWINCHIPC6) += $(call cc-option,-march=winchip-c6,-march=i586)
cflags-$(CONFIG_MWINCHIP2) += $(call cc-option,-march=winchip2,-march=i586)
cflags-$(CONFIG_MWINCHIP3D) += $(call cc-option,-march=winchip2,-march=i586)
cflags-$(CONFIG_MCYRIXIII) += $(call cc-option,-march=c3,-march=i486) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
cflags-$(CONFIG_MVIAC3_2) += $(call cc-option,-march=c3-2,-march=i686)
# AMD Elan support
cflags-$(CONFIG_X86_ELAN) += -march=i486
# -mregparm=3 works ok on gcc-3.0 and later
#
GCC_VERSION := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))
GCC_VERSION := $(call cc-version)
cflags-$(CONFIG_REGPARM) += $(shell if [ $(GCC_VERSION) -ge 0300 ] ; then echo "-mregparm=3"; fi ;)
# Disable unit-at-a-time mode, it makes gcc use a lot more stack
# due to the lack of sharing of stacklots.
CFLAGS += $(call check_gcc,-fno-unit-at-a-time,)
CFLAGS += $(call cc-option,-fno-unit-at-a-time)
CFLAGS += $(cflags-y)
......
arch/i386/boot/Makefile
View file @ 6aac46e3
......@@ -29,9 +29,9 @@ targets := vmlinux.bin bootsect bootsect.o setup setup.o \
zImage bzImage
subdir- := compressed
host-progs := tools/build
hostprogs-y := tools/build
HOSTCFLAGS_build.o := -Iinclude
HOSTCFLAGS_build.o := $(LINUXINCLUDE)
# ---------------------------------------------------------------------------
......
arch/i386/kernel/Makefile
View file @ 6aac46e3
......@@ -2,7 +2,7 @@
# Makefile for the linux kernel.
#
extra-y := head.o init_task.o vmlinux.lds.s
extra-y := head.o init_task.o vmlinux.lds
obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o vm86.o \
ptrace.o i8259.o ioport.o ldt.o setup.o time.o sys_i386.o \
......
arch/ia64/Kconfig
View file @ 6aac46e3
......@@ -372,119 +372,7 @@ source "arch/ia64/hp/sim/Kconfig"
source "arch/ia64/oprofile/Kconfig"
menu "Kernel hacking"
choice
prompt "Physical memory granularity"
default IA64_GRANULE_64MB
config IA64_GRANULE_16MB
bool "16MB"
help
IA-64 identity-mapped regions use a large page size called "granules".
Select "16MB" for a small granule size.
Select "64MB" for a large granule size. This is the current default.
config IA64_GRANULE_64MB
bool "64MB"
depends on !(IA64_GENERIC || IA64_HP_ZX1 || IA64_SGI_SN2)
endchoice
config DEBUG_KERNEL
bool "Kernel debugging"
help
Say Y here if you are developing drivers or trying to debug and
identify kernel problems.
config IA64_PRINT_HAZARDS
bool "Print possible IA-64 dependency violations to console"
depends on DEBUG_KERNEL
help
Selecting this option prints more information for Illegal Dependency
Faults, that is, for Read-after-Write (RAW), Write-after-Write (WAW),
or Write-after-Read (WAR) violations. This option is ignored if you
are compiling for an Itanium A step processor
(CONFIG_ITANIUM_ASTEP_SPECIFIC). If you're unsure, select Y.
config DISABLE_VHPT
bool "Disable VHPT"
depends on DEBUG_KERNEL
help
The Virtual Hash Page Table (VHPT) enhances virtual address
translation performance. Normally you want the VHPT active but you
can select this option to disable the VHPT for debugging. If you're
unsure, answer N.
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
config DEBUG_SLAB
bool "Debug memory allocations"
depends on DEBUG_KERNEL
help
Say Y here to have the kernel do limited verification on memory
allocation as well as poisoning memory on free to catch use of freed
memory.
config DEBUG_SPINLOCK
bool "Spinlock debugging"
depends on DEBUG_KERNEL
help
Say Y here and build SMP to catch missing spinlock initialization
and certain other kinds of spinlock errors commonly made. This is
best used in conjunction with the NMI watchdog so that spinlock
deadlocks are also debuggable.
config DEBUG_SPINLOCK_SLEEP
bool "Sleep-inside-spinlock checking"
help
If you say Y here, various routines which may sleep will become very
noisy if they are called with a spinlock held.
config IA64_DEBUG_CMPXCHG
bool "Turn on compare-and-exchange bug checking (slow!)"
depends on DEBUG_KERNEL
help
Selecting this option turns on bug checking for the IA-64
compare-and-exchange instructions. This is slow! Itaniums
from step B3 or later don't have this problem. If you're unsure,
select N.
config IA64_DEBUG_IRQ
bool "Turn on irq debug checks (slow!)"
depends on DEBUG_KERNEL
help
Selecting this option turns on bug checking for the IA-64 irq_save
and restore instructions. It's useful for tracking down spinlock
problems, but slow! If you're unsure, select N.
config DEBUG_INFO
bool "Compile the kernel with debug info"
depends on DEBUG_KERNEL
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use gdb to debug the kernel.
If you don't debug the kernel, you can say N.
config SYSVIPC_COMPAT
bool
depends on COMPAT && SYSVIPC
default y
endmenu
source "arch/ia64/Kconfig.debug"
source "security/Kconfig"
......
arch/ia64/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
choice
prompt "Physical memory granularity"
default IA64_GRANULE_64MB
config IA64_GRANULE_16MB
bool "16MB"
help
IA-64 identity-mapped regions use a large page size called "granules".
Select "16MB" for a small granule size.
Select "64MB" for a large granule size. This is the current default.
config IA64_GRANULE_64MB
bool "64MB"
depends on !(IA64_GENERIC || IA64_HP_ZX1 || IA64_SGI_SN2)
endchoice
config IA64_PRINT_HAZARDS
bool "Print possible IA-64 dependency violations to console"
depends on DEBUG_KERNEL
help
Selecting this option prints more information for Illegal Dependency
Faults, that is, for Read-after-Write (RAW), Write-after-Write (WAW),
or Write-after-Read (WAR) violations. This option is ignored if you
are compiling for an Itanium A step processor
(CONFIG_ITANIUM_ASTEP_SPECIFIC). If you're unsure, select Y.
config DISABLE_VHPT
bool "Disable VHPT"
depends on DEBUG_KERNEL
help
The Virtual Hash Page Table (VHPT) enhances virtual address
translation performance. Normally you want the VHPT active but you
can select this option to disable the VHPT for debugging. If you're
unsure, answer N.
config IA64_DEBUG_CMPXCHG
bool "Turn on compare-and-exchange bug checking (slow!)"
depends on DEBUG_KERNEL
help
Selecting this option turns on bug checking for the IA-64
compare-and-exchange instructions. This is slow! Itaniums
from step B3 or later don't have this problem. If you're unsure,
select N.
config IA64_DEBUG_IRQ
bool "Turn on irq debug checks (slow!)"
depends on DEBUG_KERNEL
help
Selecting this option turns on bug checking for the IA-64 irq_save
and restore instructions. It's useful for tracking down spinlock
problems, but slow! If you're unsure, select N.
config SYSVIPC_COMPAT
bool
depends on COMPAT && SYSVIPC
default y
endmenu
arch/ia64/Makefile
View file @ 6aac46e3
......@@ -23,9 +23,7 @@ cflags-y := -pipe $(EXTRA) -ffixed-r13 -mfixed-range=f12-f15,f32-f127 \
-falign-functions=32 -frename-registers
CFLAGS_KERNEL := -mconstant-gp
GCC_VERSION=$(shell $(CC) -v 2>&1 | fgrep 'gcc version' | cut -f3 -d' ' | cut -f1 -d'.')
GCC_MINOR_VERSION=$(shell $(CC) -v 2>&1 | fgrep 'gcc version' | cut -f3 -d' ' | cut -f2 -d'.')
GCC_VERSION := $(call cc-version)
GAS_STATUS = $(shell $(srctree)/arch/ia64/scripts/check-gas $(CC) $(OBJDUMP))
CPPFLAGS += $(shell $(srctree)/arch/ia64/scripts/toolchain-flags $(CC) $(OBJDUMP) $(READELF))
......@@ -37,16 +35,14 @@ $(error Sorry, you need a newer version of the assember, one that is built from
ftp://ftp.hpl.hp.com/pub/linux-ia64/gas-030124.tar.gz)
endif
ifeq ($(GCC_VERSION),2)
ifneq ($(shell if [ $(GCC_VERSION) -lt 0300 ] ; then echo "bad"; fi ;),)
$(error Sorry, your compiler is too old. GCC v2.96 is known to generate bad code.)
endif
ifeq ($(GCC_VERSION),3)
ifeq ($(GCC_MINOR_VERSION),4)
ifeq ($(GCC_VERSION),0304)
# Workaround Itanium 1 bugs in gcc 3.4.
# cflags-$(CONFIG_ITANIUM) += -mtune=merced
cflags-$(CONFIG_MCKINLEY) += -mtune=mckinley
endif
endif
cflags-$(CONFIG_ITANIUM_BSTEP_SPECIFIC) += -mb-step
......
arch/ia64/kernel/Makefile
View file @ 6aac46e3
......@@ -2,7 +2,7 @@
# Makefile for the linux kernel.
#
extra-y := head.o init_task.o vmlinux.lds.s
extra-y := head.o init_task.o vmlinux.lds
obj-y := acpi.o entry.o efi.o efi_stub.o gate-data.o fsys.o ia64_ksyms.o irq.o irq_ia64.o \
irq_lsapic.o ivt.o machvec.o pal.o patch.o process.o perfmon.o ptrace.o sal.o \
......@@ -21,25 +21,25 @@ obj-$(CONFIG_IA64_CYCLONE) += cyclone.o
# The gate DSO image is built using a special linker script.
targets += gate.so gate-syms.o
extra-y += gate.so gate-syms.o gate.lds.s gate.o
extra-y += gate.so gate-syms.o gate.lds gate.o
# fp_emulate() expects f2-f5,f16-f31 to contain the user-level state.
CFLAGS_traps.o += -mfixed-range=f2-f5,f16-f31
AFLAGS_gate.lds.o += -P -C -U$(ARCH)
CPPFLAGS_gate.lds := -P -C -U$(ARCH)
quiet_cmd_gate = GATE $@
cmd_gate = $(CC) -nostdlib $(GATECFLAGS_$(@F)) -Wl,-T,$(filter-out FORCE,$^) -o $@
GATECFLAGS_gate.so = -shared -s -Wl,-soname=linux-gate.so.1
$(obj)/gate.so: $(obj)/gate.lds.s $(obj)/gate.o FORCE
$(obj)/gate.so: $(obj)/gate.lds $(obj)/gate.o FORCE
$(call if_changed,gate)
$(obj)/built-in.o: $(obj)/gate-syms.o
$(obj)/built-in.o: ld_flags += -R $(obj)/gate-syms.o
GATECFLAGS_gate-syms.o = -r
$(obj)/gate-syms.o: $(src)/gate.lds.s $(obj)/gate.o FORCE
$(obj)/gate-syms.o: $(obj)/gate.lds $(obj)/gate.o FORCE
$(call if_changed,gate)
# gate-data.o contains the gate DSO image as data in section .data.gate.
......
arch/m68k/Kconfig
View file @ 6aac46e3
......@@ -21,12 +21,10 @@ config RWSEM_GENERIC_SPINLOCK
config RWSEM_XCHGADD_ALGORITHM
bool
mainmenu "Linux/68k Kernel Configuration"
source "init/Kconfig"
menu "Platform dependent setup"
config EISA
......@@ -355,7 +353,6 @@ config 060_WRITETHROUGH
endmenu
menu "General setup"
source "fs/Kconfig.binfmt"
......@@ -447,7 +444,6 @@ endmenu
source "drivers/Kconfig"
menu "Character devices"
config ATARI_MFPSER
......@@ -652,47 +648,10 @@ endmenu
source "fs/Kconfig"
menu "Kernel hacking"
config DEBUG_KERNEL
bool "Kernel debugging"
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
config DEBUG_SLAB
bool "Debug memory allocations"
depends on DEBUG_KERNEL
config DEBUG_BUGVERBOSE
bool "Verbose BUG() reporting"
depends on DEBUG_KERNEL
config DEBUG_INFO
bool "Compile the kernel with debug info"
depends on DEBUG_KERNEL
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use gdb to debug the kernel.
If you don't debug the kernel, you can say N.
endmenu
source "arch/m68k/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
arch/m68k/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
endmenu
arch/m68k/Makefile
View file @ 6aac46e3
......@@ -28,7 +28,7 @@ ifdef CONFIG_SUN3
LDFLAGS_vmlinux = -N
endif
CHECK := $(CHECK) -D__mc68000__=1 -I$(shell $(CC) -print-file-name=include)
CHECKFLAGS += -D__mc68000__=1 -I$(shell $(CC) -print-file-name=include)
# without -fno-strength-reduce the 53c7xx.c driver fails ;-(
CFLAGS += -pipe -fno-strength-reduce -ffixed-a2
......
arch/m68k/kernel/Makefile
View file @ 6aac46e3
......@@ -7,7 +7,7 @@ ifndef CONFIG_SUN3
else
extra-y := sun3-head.o
endif
extra-y += vmlinux.lds.s
extra-y += vmlinux.lds
obj-y := entry.o process.o traps.o ints.o signal.o ptrace.o \
sys_m68k.o time.o semaphore.o setup.o m68k_ksyms.o
......
arch/m68knommu/Kconfig
View file @ 6aac46e3
......@@ -5,6 +5,10 @@
mainmenu "uClinux/68k (w/o MMU) Kernel Configuration"
config M68KNOMMU
bool
default y
config MMU
bool
default n
......@@ -25,7 +29,6 @@ config RWSEM_XCHGADD_ALGORITHM
bool
default n
source "init/Kconfig"
menu "Processor type and features"
......@@ -388,7 +391,7 @@ config LARGE_ALLOCS
a lot of RAM, and you need to able to allocate very large
contiguous chunks. If unsure, say N.
choice
choice
prompt "RAM size"
default AUTO
......@@ -421,7 +424,7 @@ config RAM32MB
endchoice
choice
choice
prompt "RAM bus width"
default RAMAUTOBIT
......@@ -472,7 +475,6 @@ endchoice
endmenu
menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
config PCI
......@@ -511,64 +513,10 @@ source "drivers/Kconfig"
source "fs/Kconfig"
menu "Kernel hacking"
config FULLDEBUG
bool "Full Symbolic/Source Debugging support"
help
Enable debuging symbols on kernel build.
config FRAME_POINTER
bool "Compile the kernel with frame pointers"
help
If you say Y here the resulting kernel image will be slightly larger
and slower, but it will give very useful debugging information.
If you don't debug the kernel, you can say N, but we may not be able
to solve problems without frame pointers.
config MAGIC_SYSRQ
bool "Magic SysRq key"
help
Enables console device to interpret special characters as
commands to dump state information.
config HIGHPROFILE
bool "Use fast second timer for profiling"
depends on COLDFIRE
help
Use a fast secondary clock to produce profiling information.
config BOOTPARAM
bool 'Compiled-in Kernel Boot Parameter'
config BOOTPARAM_STRING
string 'Kernel Boot Parameter'
default 'console=ttyS0,19200'
depends on BOOTPARAM
config DUMPTOFLASH
bool "Panic/Dump to FLASH"
depends on COLDFIRE
help
Dump any panic of trap output into a flash memory segment
for later analysis.
config NO_KERNEL_MSG
bool "Suppress Kernel BUG Messages"
help
Do not output any debug BUG messages within the kernel.
config BDM_DISABLE
bool "Disable BDM signals"
depends on (EXPERIMENTAL && COLDFIRE)
help
Disable the ColdFire CPU's BDM signals.
endmenu
source "arch/m68knommu/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
arch/m68knommu/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
config FULLDEBUG
bool "Full Symbolic/Source Debugging support"
help
Enable debuging symbols on kernel build.
config HIGHPROFILE
bool "Use fast second timer for profiling"
depends on COLDFIRE
help
Use a fast secondary clock to produce profiling information.
config BOOTPARAM
bool 'Compiled-in Kernel Boot Parameter'
config BOOTPARAM_STRING
string 'Kernel Boot Parameter'
default 'console=ttyS0,19200'
depends on BOOTPARAM
config DUMPTOFLASH
bool "Panic/Dump to FLASH"
depends on COLDFIRE
help
Dump any panic of trap output into a flash memory segment
for later analysis.
config NO_KERNEL_MSG
bool "Suppress Kernel BUG Messages"
help
Do not output any debug BUG messages within the kernel.
config BDM_DISABLE
bool "Disable BDM signals"
depends on (EXPERIMENTAL && COLDFIRE)
help
Disable the ColdFire CPU's BDM signals.
endmenu
arch/m68knommu/kernel/Makefile
View file @ 6aac46e3
......@@ -2,7 +2,7 @@
# Makefile for arch/m68knommu/kernel.
#
extra-y := vmlinux.lds.s
extra-y := vmlinux.lds
obj-y += dma.o entry.o init_task.o m68k_ksyms.o process.o ptrace.o semaphore.o \
setup.o signal.o syscalltable.o sys_m68k.o time.o traps.o
......
arch/mips/Kconfig
View file @ 6aac46e3
......@@ -381,7 +381,7 @@ config DDB5476
evaluation board.
Features : kernel debugging, serial terminal, NFS root fs, on-board
ether port USB, AC97, PCI, PCI VGA card & framebuffer console,
ether port USB, AC97, PCI, PCI VGA card & framebuffer console,
IDE controller, PS2 keyboard, PS2 mouse, etc.
config DDB5477
......@@ -400,7 +400,7 @@ config DDB5477_BUS_FREQUENCY
int "bus frequency (in kHZ, 0 for auto-detect)"
depends on DDB5477
default 0
config NEC_OSPREY
bool "Support for NEC Osprey board"
select DMA_NONCOHERENT
......@@ -513,15 +513,15 @@ config SOC_AU1550
endchoice
choice
choice
prompt "AMD/Alchemy Au1x00 board support"
depends on SOC_AU1X00
help
These are evaluation boards built by AMD/Alchemy to
showcase their Au1X00 Internet Edge Processors. The SOC design
is based on the MIPS32 architecture running at 266/400/500MHz
with many integrated peripherals. Further information can be
found at their website, <http://www.amd.com/>. Say Y here if you
is based on the MIPS32 architecture running at 266/400/500MHz
with many integrated peripherals. Further information can be
found at their website, <http://www.amd.com/>. Say Y here if you
wish to build a kernel for this platform.
config MIPS_PB1000
......@@ -1091,7 +1091,6 @@ config TANBAC_TB0219
endmenu
menu "CPU selection"
choice
......@@ -1194,7 +1193,7 @@ config PAGE_SIZE_4KB
This option select the standard 4kB Linux page size. On some
R3000-family processors this is the only available page size. Using
4kB page size will minimize memory consumption and is therefore
recommended for low memory systems.
recommended for low memory systems.
config PAGE_SIZE_8KB
bool "8kB"
......@@ -1382,21 +1381,6 @@ config PREEMPT
This allows applications to run more reliably even when the system is
under load.
config DEBUG_SPINLOCK
bool "Spinlock debugging"
depends on DEBUG_KERNEL
help
Say Y here and build SMP to catch missing spinlock initialization
and certain other kinds of spinlock errors commonly made. This is
best used in conjunction with the NMI watchdog so that spinlock
deadlocks are also debuggable.
config DEBUG_SPINLOCK_SLEEP
bool "Sleep-inside-spinlock checking"
help
If you say Y here, various routines which may sleep will become very
noisy if they are called with a spinlock held.
config RTC_DS1742
bool "DS1742 BRAM/RTC support"
depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
......@@ -1562,7 +1546,7 @@ config EMBEDDED_RAMDISK_IMAGE
default "ramdisk.gz"
help
This is the filename of the ramdisk image to be built into the
kernel. Relative pathnames are relative to arch/mips/ramdisk/.
kernel. Relative pathnames are relative to arch/mips/ramdisk/.
The ramdisk image is not part of the kernel distribution; you must
provide one yourself.
......@@ -1572,119 +1556,7 @@ source "drivers/Kconfig"
source "fs/Kconfig"
menu "Kernel hacking"
config CROSSCOMPILE
bool "Are you using a crosscompiler"
help
Say Y here if you are compiling the kernel on a different
architecture than the one it is intended to run on.
config CMDLINE
string "Default kernel command string"
default ""
help
On some platforms, there is currently no way for the boot loader to
pass arguments to the kernel. For these platforms, you can supply
some command-line options at build time by entering them here. In
other cases you can specify kernel args so that you don't have
to set them up in board prom initialization routines.
config DEBUG_KERNEL
bool "Kernel debugging"
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config DEBUG_SLAB
bool "Debug memory allocations"
depends on DEBUG_KERNEL
help
Say Y here to have the kernel do limited verification on memory
allocation as well as poisoning memory on free to catch use of freed
memory.
config KGDB
bool "Remote GDB kernel debugging"
depends on DEBUG_KERNEL
select DEBUG_INFO
help
If you say Y here, it will be possible to remotely debug the MIPS
kernel using gdb. This enlarges your kernel image disk size by
several megabytes and requires a machine with more than 16 MB,
better 32 MB RAM to avoid excessive linking time. This is only
useful for kernel hackers. If unsure, say N.
config GDB_CONSOLE
bool "Console output to GDB"
depends on KGDB
help
If you are using GDB for remote debugging over a serial port and
would like kernel messages to be formatted into GDB $O packets so
that GDB prints them as program output, say 'Y'.
config DEBUG_INFO
bool "Compile the kernel with debug info"
depends on DEBUG_KERNEL
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use gdb to debug the kernel.
If you don't debug the kernel, you can say N.
config SB1XXX_CORELIS
bool "Corelis Debugger"
depends on SIBYTE_SB1xxx_SOC
select DEBUG_INFO
help
Select compile flags that produce code that can be processed by the
Corelis mksym utility and UDB Emulator.
config RUNTIME_DEBUG
bool "Enable run-time debugging"
depends on DEBUG_KERNEL
help
If you say Y here, some debugging macros will do run-time checking.
If you say N here, those macros will mostly turn to no-ops. See
include/asm-mips/debug.h for debuging macros.
If unsure, say N.
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
config MIPS_UNCACHED
bool "Run uncached"
depends on DEBUG_KERNEL && !SMP && !SGI_IP27
help
If you say Y here there kernel will disable all CPU caches. This will
reduce the system's performance dramatically but can help finding
otherwise hard to track bugs. It can also useful if you're doing
hardware debugging with a logic analyzer and need to see all traffic
on the bus.
config DEBUG_HIGHMEM
bool "Highmem debugging"
depends on DEBUG_KERNEL && HIGHMEM
endmenu
source "arch/mips/Kconfig.debug"
source "security/Kconfig"
......
arch/mips/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
config CROSSCOMPILE
bool "Are you using a crosscompiler"
help
Say Y here if you are compiling the kernel on a different
architecture than the one it is intended to run on.
config CMDLINE
string "Default kernel command string"
default ""
help
On some platforms, there is currently no way for the boot loader to
pass arguments to the kernel. For these platforms, you can supply
some command-line options at build time by entering them here. In
other cases you can specify kernel args so that you don't have
to set them up in board prom initialization routines.
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config KGDB
bool "Remote GDB kernel debugging"
depends on DEBUG_KERNEL
select DEBUG_INFO
help
If you say Y here, it will be possible to remotely debug the MIPS
kernel using gdb. This enlarges your kernel image disk size by
several megabytes and requires a machine with more than 16 MB,
better 32 MB RAM to avoid excessive linking time. This is only
useful for kernel hackers. If unsure, say N.
config GDB_CONSOLE
bool "Console output to GDB"
depends on KGDB
help
If you are using GDB for remote debugging over a serial port and
would like kernel messages to be formatted into GDB $O packets so
that GDB prints them as program output, say 'Y'.
config SB1XXX_CORELIS
bool "Corelis Debugger"
depends on SIBYTE_SB1xxx_SOC
select DEBUG_INFO
help
Select compile flags that produce code that can be processed by the
Corelis mksym utility and UDB Emulator.
config RUNTIME_DEBUG
bool "Enable run-time debugging"
depends on DEBUG_KERNEL
help
If you say Y here, some debugging macros will do run-time checking.
If you say N here, those macros will mostly turn to no-ops. See
include/asm-mips/debug.h for debuging macros.
If unsure, say N.
config MIPS_UNCACHED
bool "Run uncached"
depends on DEBUG_KERNEL && !SMP && !SGI_IP27
help
If you say Y here there kernel will disable all CPU caches. This will
reduce the system's performance dramatically but can help finding
otherwise hard to track bugs. It can also useful if you're doing
hardware debugging with a logic analyzer and need to see all traffic
on the bus.
endmenu
arch/mips/Makefile
View file @ 6aac46e3
......@@ -56,14 +56,12 @@ endif
#
cflags-y := -I $(TOPDIR)/include/asm/gcc
cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
cflags-y += $(call check_gcc, -finline-limit=100000,)
cflags-y += $(call cc-option, -finline-limit=100000)
LDFLAGS_vmlinux += -G 0 -static -n
MODFLAGS += -mlong-calls
cflags-$(CONFIG_SB1XXX_CORELIS) += -mno-sched-prolog -fno-omit-frame-pointer
check_warning = $(shell if $(CC) $(1) -c -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi)
#
# Use: $(call set_gccflags,<cpu0>,<isa0>,<cpu1>,<isa1>,<isa2>)
#
......@@ -162,7 +160,7 @@ cflags-$(CONFIG_CPU_R5432) += \
cflags-$(CONFIG_CPU_NEVADA) += \
$(call set_gccflags,rm5200,mips4,r5000,mips4,mips2) \
-Wa,--trap
# $(call check_gcc,-mmad,)
# $(call cc-option,-mmad)
cflags-$(CONFIG_CPU_RM7000) += \
$(call set_gccflags,rm7000,mips4,r5000,mips4,mips2) \
......@@ -643,7 +641,7 @@ endif
# none has been choosen above.
#
AFLAGS_vmlinux.lds.o := \
CPPFLAGS_vmlinux.lds := \
-D"LOADADDR=$(load-y)" \
-D"JIFFIES=$(JIFFIES)" \
-imacros $(srctree)/include/asm-$(ARCH)/sn/mapped_kernel.h
......
arch/mips/kernel/Makefile
View file @ 6aac46e3
......@@ -2,7 +2,7 @@
# Makefile for the Linux/MIPS kernel.
#
extra-y := head.o init_task.o vmlinux.lds.s
extra-y := head.o init_task.o vmlinux.lds
obj-y += cpu-probe.o branch.o entry.o genex.o irq.o process.o \
ptrace.o reset.o semaphore.o setup.o signal.o syscall.o \
......
arch/parisc/Kconfig
View file @ 6aac46e3
......@@ -106,7 +106,7 @@ config PARISC64
depends on PA8X00
help
Enable this if you want to support 64bit kernel on PA-RISC platform.
At the moment, only people willing to use more than 2GB of RAM,
or having a 64bit-only capable PA-RISC machine should say Y here.
......@@ -188,76 +188,10 @@ source "fs/Kconfig"
source "arch/parisc/oprofile/Kconfig"
menu "Kernel hacking"
config DEBUG_KERNEL
bool "Kernel debugging"
help
Say Y here if you are developing drivers or trying to debug and
identify kernel problems.
config DEBUG_SLAB
bool "Debug memory allocations"
depends on DEBUG_KERNEL
help
Say Y here to have the kernel do limited verification on memory
allocation as well as poisoning memory on free to catch use of freed
memory.
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
config DEBUG_SPINLOCK
bool "Spinlock debugging"
depends on DEBUG_KERNEL
help
Say Y here and build SMP to catch missing spinlock initialization
and certain other kinds of spinlock errors commonly made. This is
best used in conjunction with the NMI watchdog so that spinlock
deadlocks are also debuggable.
config DEBUG_RWLOCK
bool "Read-write spinlock debugging"
depends on DEBUG_KERNEL && SMP
help
If you say Y here then read-write lock processing will count how many
times it has tried to get the lock and issue an error message after
too many attempts. If you suspect a rwlock problem or a kernel
hacker asks for this option then say Y. Otherwise say N.
config FRAME_POINTER
bool "Compile the kernel with frame pointers"
help
If you say Y here the resulting kernel image will be slightly larger
and slower, but it will give very useful debugging information.
If you don't debug the kernel, you can say N, but we may not be able
to solve problems without frame pointers.
config DEBUG_INFO
bool "Compile the kernel with debug info"
depends on DEBUG_KERNEL
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use gdb to debug the kernel.
If you don't debug the kernel, you can say N.
endmenu
source "arch/parisc/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
arch/parisc/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
config DEBUG_RWLOCK
bool "Read-write spinlock debugging"
depends on DEBUG_KERNEL && SMP
help
If you say Y here then read-write lock processing will count how many
times it has tried to get the lock and issue an error message after
too many attempts. If you suspect a rwlock problem or a kernel
hacker asks for this option then say Y. Otherwise say N.
endmenu
arch/parisc/kernel/Makefile
View file @ 6aac46e3
......@@ -4,7 +4,7 @@
head-y := head.o
head-$(CONFIG_PARISC64) := head64.o
extra-y := init_task.o $(head-y) vmlinux.lds.s
extra-y := init_task.o $(head-y) vmlinux.lds
AFLAGS_entry.o := -traditional
AFLAGS_pacache.o := -traditional
......
arch/ppc/Kconfig
View file @ 6aac46e3
......@@ -49,7 +49,7 @@ config 6xx
There are four types of PowerPC chips supported. The more common
types (601, 603, 604, 740, 750, 7400), the Motorola embedded
versions (821, 823, 850, 855, 860, 52xx, 8260), the IBM embedded
versions (403 and 405) and the high end 64 bit Power processors
versions (403 and 405) and the high end 64 bit Power processors
(POWER 3, POWER4, and IBM 970 also known as G5)
Unless you are building a kernel for one of the embedded processor
systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
......@@ -626,7 +626,7 @@ config EMBEDDEDBOOT
bool
depends on 8xx || 8260
default y
config PPC_MPC52xx
bool
......@@ -1043,13 +1043,13 @@ config PCI_8260
bool
depends on PCI && 8260 && !8272
default y
config 8260_PCI9
bool " Enable workaround for MPC826x erratum PCI 9"
depends on PCI_8260
default y
choice
choice
prompt " IDMA channel for PCI 9 workaround"
depends on 8260_PCI9
......@@ -1228,128 +1228,7 @@ source "lib/Kconfig"
source "arch/ppc/oprofile/Kconfig"
menu "Kernel hacking"
config DEBUG_KERNEL
bool "Kernel debugging"
config DEBUG_SLAB
bool "Debug memory allocations"
depends on DEBUG_KERNEL
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
config DEBUG_SPINLOCK
bool "Spinlock debugging"
depends on DEBUG_KERNEL
help
Say Y here and to CONFIG_SMP to include code to check for missing
spinlock initialization and some other common spinlock errors.
config DEBUG_HIGHMEM
bool "Highmem debugging"
depends on DEBUG_KERNEL && HIGHMEM
help
This options enables additional error checking for high memory
systems. Disable for production systems.
config DEBUG_SPINLOCK_SLEEP
bool "Sleep-inside-spinlock checking"
depends on DEBUG_KERNEL
help
If you say Y here, various routines which may sleep will become very
noisy if they are called with a spinlock held.
config KGDB
bool "Include kgdb kernel debugger"
depends on DEBUG_KERNEL && (BROKEN || PPC_GEN550 || 4xx)
select DEBUG_INFO
help
Include in-kernel hooks for kgdb, the Linux kernel source level
debugger. See <http://kgdb.sourceforge.net/> for more information.
Unless you are intending to debug the kernel, say N here.
choice
prompt "Serial Port"
depends on KGDB
default KGDB_TTYS1
config KGDB_TTYS0
bool "ttyS0"
config KGDB_TTYS1
bool "ttyS1"
config KGDB_TTYS2
bool "ttyS2"
config KGDB_TTYS3
bool "ttyS3"
endchoice
config KGDB_CONSOLE
bool "Enable serial console thru kgdb port"
depends on KGDB && 8xx || CPM2
help
If you enable this, all serial console messages will be sent
over the gdb stub.
If unsure, say N.
config XMON
bool "Include xmon kernel debugger"
depends on DEBUG_KERNEL
help
Include in-kernel hooks for the xmon kernel monitor/debugger.
Unless you are intending to debug the kernel, say N here.
config BDI_SWITCH
bool "Include BDI-2000 user context switcher"
depends on DEBUG_KERNEL
help
Include in-kernel support for the Abatron BDI2000 debugger.
Unless you are intending to debug the kernel with one of these
machines, say N here.
config DEBUG_INFO
bool "Compile the kernel with debug info"
depends on DEBUG_KERNEL
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use some sort of debugger to
debug the kernel.
If you don't debug the kernel, you can say N.
config BOOTX_TEXT
bool "Support for early boot text console (BootX or OpenFirmware only)"
depends PPC_OF
help
Say Y here to see progress messages from the boot firmware in text
mode. Requires either BootX or Open Firmware.
config SERIAL_TEXT_DEBUG
bool "Support for early boot texts over serial port"
depends on 4xx || GT64260 || LOPEC || PPLUS || PRPMC800 || PPC_GEN550 || PPC_MPC52xx
config PPC_OCP
bool
depends on IBM_OCP || FSL_OCP
default y
endmenu
source "arch/ppc/Kconfig.debug"
source "security/Kconfig"
......
arch/ppc/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
config KGDB
bool "Include kgdb kernel debugger"
depends on DEBUG_KERNEL && (BROKEN || PPC_GEN550 || 4xx)
select DEBUG_INFO
help
Include in-kernel hooks for kgdb, the Linux kernel source level
debugger. See <http://kgdb.sourceforge.net/> for more information.
Unless you are intending to debug the kernel, say N here.
choice
prompt "Serial Port"
depends on KGDB
default KGDB_TTYS1
config KGDB_TTYS0
bool "ttyS0"
config KGDB_TTYS1
bool "ttyS1"
config KGDB_TTYS2
bool "ttyS2"
config KGDB_TTYS3
bool "ttyS3"
endchoice
config KGDB_CONSOLE
bool "Enable serial console thru kgdb port"
depends on KGDB && 8xx || CPM2
help
If you enable this, all serial console messages will be sent
over the gdb stub.
If unsure, say N.
config XMON
bool "Include xmon kernel debugger"
depends on DEBUG_KERNEL
help
Include in-kernel hooks for the xmon kernel monitor/debugger.
Unless you are intending to debug the kernel, say N here.
config BDI_SWITCH
bool "Include BDI-2000 user context switcher"
depends on DEBUG_KERNEL
help
Include in-kernel support for the Abatron BDI2000 debugger.
Unless you are intending to debug the kernel with one of these
machines, say N here.
config BOOTX_TEXT
bool "Support for early boot text console (BootX or OpenFirmware only)"
depends PPC_OF
help
Say Y here to see progress messages from the boot firmware in text
mode. Requires either BootX or Open Firmware.
config SERIAL_TEXT_DEBUG
bool "Support for early boot texts over serial port"
depends on 4xx || GT64260 || LOPEC || PPLUS || PRPMC800 || PPC_GEN550 || PPC_MPC52xx
config PPC_OCP
bool
depends on IBM_OCP || FSL_OCP
default y
endmenu
arch/ppc/Makefile
View file @ 6aac46e3
......@@ -13,7 +13,7 @@
# This must match PAGE_OFFSET in include/asm-ppc/page.h.
KERNELLOAD := $(CONFIG_KERNEL_START)
HAS_BIARCH := $(shell if $(CC) -m32 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi;)
HAS_BIARCH := $(call cc-option-yn, -m32)
ifeq ($(HAS_BIARCH),y)
AS := $(AS) -a32
LD := $(LD) -m elf32ppc
......@@ -27,7 +27,7 @@ CFLAGS += -Iarch/$(ARCH) -msoft-float -pipe \
-ffixed-r2 -Wno-uninitialized -mmultiple
CPP = $(CC) -E $(CFLAGS)
CHECK := $(CHECK) -D__powerpc__=1
CHECKFLAGS += -D__powerpc__=1
ifndef CONFIG_E500
CFLAGS += -mstring
......@@ -70,7 +70,7 @@ BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
all: zImage
AFLAGS_vmlinux.lds.o := -Upowerpc
CPPFLAGS_vmlinux.lds := -Upowerpc
# All the instructions talk about "make bzImage".
bzImage: zImage
......@@ -112,7 +112,7 @@ else
NEW_AS := 0
endif
# gcc-3.4 and binutils-2.14 are a fatal combination.
GCC_VERSION := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))
GCC_VERSION := $(call cc-version)
BAD_GCC_AS := $(shell echo mftb 5 | $(AS) -mppc -many -o /dev/null >/dev/null 2>&1 && echo 0 || echo 1)
checkbin:
......
arch/ppc/boot/Makefile
View file @ 6aac46e3
......@@ -23,12 +23,12 @@ subdir-$(CONFIG_PPC_OF) += of1275
# for cleaning
subdir- += simple openfirmware
host-progs := $(addprefix utils/, addnote mknote hack-coff mkprep mkbugboot mktree)
hostprogs-y := $(addprefix utils/, addnote mknote hack-coff mkprep mkbugboot mktree)
.PHONY: $(BOOT_TARGETS) $(bootdir-y)
$(BOOT_TARGETS): $(bootdir-y)
$(bootdir-y): $(addprefix $(obj)/,$(subdir-y)) \
$(addprefix $(obj)/,$(host-progs))
$(addprefix $(obj)/,$(hostprogs-y))
$(Q)$(MAKE) $(build)=$(obj)/$@ $(MAKECMDGOALS)
arch/ppc/kernel/Makefile
View file @ 6aac46e3
......@@ -9,7 +9,7 @@ extra-$(CONFIG_E500) := head_e500.o
extra-$(CONFIG_8xx) := head_8xx.o
extra-$(CONFIG_6xx) += idle_6xx.o
extra-$(CONFIG_POWER4) += idle_power4.o
extra-y += vmlinux.lds.s
extra-y += vmlinux.lds
obj-y := entry.o traps.o irq.o idle.o time.o misc.o \
process.o signal.o ptrace.o align.o \
......
arch/ppc64/Kconfig
View file @ 6aac46e3
#
#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#
......@@ -227,7 +227,7 @@ config SCANLOG
config LPARCFG
tristate "LPAR Configuration Data"
help
Provide system capacity information via human readable
Provide system capacity information via human readable
<key word>=<value> pairs through a /proc/ppc64/lparcfg interface.
endmenu
......@@ -343,102 +343,10 @@ config VIOPATH
source "arch/ppc64/oprofile/Kconfig"
menu "Kernel hacking"
config DEBUG_KERNEL
bool "Kernel debugging"
help
Say Y here if you are developing drivers or trying to debug and
identify kernel problems.
config DEBUG_STACKOVERFLOW
bool "Check for stack overflows"
depends on DEBUG_KERNEL
config DEBUG_STACK_USAGE
bool "Stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config DEBUG_SLAB
bool "Debug memory allocations"
depends on DEBUG_KERNEL
help
Say Y here to have the kernel do limited verification on memory
allocation as well as poisoning memory on free to catch use of freed
memory.
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
config DEBUGGER
bool "Enable debugger hooks"
depends on DEBUG_KERNEL
help
Include in-kernel hooks for kernel debuggers. Unless you are
intending to debug the kernel, say N here.
config XMON
bool "Include xmon kernel debugger"
depends on DEBUGGER
help
Include in-kernel hooks for the xmon kernel monitor/debugger.
Unless you are intending to debug the kernel, say N here.
config XMON_DEFAULT
bool "Enable xmon by default"
depends on XMON
config PPCDBG
bool "Include PPCDBG realtime debugging"
depends on DEBUG_KERNEL
config DEBUG_INFO
bool "Compile the kernel with debug info"
depends on DEBUG_KERNEL
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use gdb to debug the kernel.
If you don't debug the kernel, you can say N.
config IRQSTACKS
bool "Use separate kernel stacks when processing interrupts"
help
If you say Y here the kernel will use separate kernel stacks
for handling hard and soft interrupts. This can help avoid
overflowing the process kernel stacks.
config SPINLINE
bool "Inline spinlock code at each call site"
depends on SMP && !PPC_SPLPAR && !PPC_ISERIES
help
Say Y if you want to have the code for acquiring spinlocks
and rwlocks inlined at each call site. This makes the kernel
somewhat bigger, but can be useful when profiling the kernel.
If in doubt, say N.
endmenu
source "arch/ppc64/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
arch/ppc64/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
config DEBUG_STACKOVERFLOW
bool "Check for stack overflows"
depends on DEBUG_KERNEL
config DEBUG_STACK_USAGE
bool "Stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config DEBUGGER
bool "Enable debugger hooks"
depends on DEBUG_KERNEL
help
Include in-kernel hooks for kernel debuggers. Unless you are
intending to debug the kernel, say N here.
config XMON
bool "Include xmon kernel debugger"
depends on DEBUGGER
help
Include in-kernel hooks for the xmon kernel monitor/debugger.
Unless you are intending to debug the kernel, say N here.
config XMON_DEFAULT
bool "Enable xmon by default"
depends on XMON
config PPCDBG
bool "Include PPCDBG realtime debugging"
depends on DEBUG_KERNEL
config IRQSTACKS
bool "Use separate kernel stacks when processing interrupts"
help
If you say Y here the kernel will use separate kernel stacks
for handling hard and soft interrupts. This can help avoid
overflowing the process kernel stacks.
config SPINLINE
bool "Inline spinlock code at each call site"
depends on SMP && !PPC_SPLPAR && !PPC_ISERIES
help
Say Y if you want to have the code for acquiring spinlocks
and rwlocks inlined at each call site. This makes the kernel
somewhat bigger, but can be useful when profiling the kernel.
If in doubt, say N.
endmenu
arch/ppc64/Makefile
View file @ 6aac46e3
......@@ -15,14 +15,14 @@
KERNELLOAD := 0xc000000000000000
HAS_BIARCH := $(shell if $(CC) -m64 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi;)
HAS_BIARCH := $(call cc-option-yn, -m64)
ifeq ($(HAS_BIARCH),y)
AS := $(AS) -a64
LD := $(LD) -m elf64ppc
CC := $(CC) -m64
endif
CHECK := $(CHECK) -m64 -D__powerpc__=1
CHECKFLAGS += -m64 -D__powerpc__=1
LDFLAGS := -m elf64ppc
LDFLAGS_vmlinux := -Bstatic -e $(KERNELLOAD) -Ttext $(KERNELLOAD)
......@@ -30,14 +30,14 @@ CFLAGS += -msoft-float -pipe -Wno-uninitialized -mminimal-toc \
-mtraceback=none
ifeq ($(CONFIG_POWER4_ONLY),y)
CFLAGS += $(call check_gcc,-mcpu=power4,)
CFLAGS += $(call cc-option,-mcpu=power4)
else
CFLAGS += $(call check_gcc,-mtune=power4,)
CFLAGS += $(call cc-option,-mtune=power4)
endif
# Enable unit-at-a-time mode when possible. It shrinks the
# kernel considerably.
CFLAGS += $(call check_gcc,-funit-at-a-time,)
CFLAGS += $(call cc-option,-funit-at-a-time)
head-y := arch/ppc64/kernel/head.o
......
arch/ppc64/boot/Makefile
View file @ 6aac46e3
......@@ -25,7 +25,7 @@ CROSS32_COMPILE ?=
BOOTCC := $(CROSS32_COMPILE)gcc
HOSTCC := gcc
BOOTCFLAGS := $(HOSTCFLAGS) -Iinclude -fno-builtin
BOOTCFLAGS := $(HOSTCFLAGS) $(LINUXINCLUDE) -fno-builtin
BOOTAS := $(CROSS32_COMPILE)as
BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional
BOOTLD := $(CROSS32_COMPILE)ld
......@@ -58,7 +58,7 @@ obj-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.o, $(section)))
src-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.c, $(section)))
gz-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.gz, $(section)))
host-progs := piggy addnote addSystemMap addRamDisk
hostprogs-y := piggy addnote addSystemMap addRamDisk
targets += zImage zImage.initrd imagesize.c \
$(patsubst $(obj)/%,%, $(call obj-sec, $(required) $(initrd))) \
$(patsubst $(obj)/%,%, $(call src-sec, $(required) $(initrd))) \
......
arch/ppc64/kernel/Makefile
View file @ 6aac46e3
......@@ -3,7 +3,7 @@
#
EXTRA_CFLAGS += -mno-minimal-toc
extra-y := head.o vmlinux.lds.s
extra-y := head.o vmlinux.lds
obj-y := setup.o entry.o traps.o irq.o idle.o dma.o \
time.o process.o signal.o syscalls.o misc.o ptrace.o \
......
arch/s390/Kconfig
View file @ 6aac46e3
......@@ -48,7 +48,7 @@ config ARCH_S390_31
depends on ARCH_S390X = 'n'
default y
choice
choice
prompt "Processor type"
default MARCH_G5
......@@ -73,8 +73,7 @@ config MARCH_Z990
This will be slightly faster but does not work on
older machines such as the z900.
endchoice
endchoice
config SMP
bool "Symmetric multi-processing support"
......@@ -121,7 +120,7 @@ config MATHEMU
depends on MARCH_G5
help
This option is required for IEEE compliant floating point arithmetic
on older S/390 machines. Say Y unless you know your machine doesn't
on older S/390 machines. Say Y unless you know your machine doesn't
need this.
config S390_SUPPORT
......@@ -156,7 +155,7 @@ config MACHCHK_WARNING
bool "Process warning machine checks"
help
Select this option if you want the machine check handler on IBM S/390 or
zSeries to process warning machine checks (e.g. on power failures).
zSeries to process warning machine checks (e.g. on power failures).
If unsure, say "Y".
config QDIO
......@@ -388,64 +387,10 @@ source "fs/Kconfig"
source "arch/s390/oprofile/Kconfig"
menu "Kernel hacking"
config DEBUG_KERNEL
bool "Kernel debugging"
help
Say Y here if you are developing drivers or trying to debug and
identify kernel problems.
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
config DEBUG_SLAB
bool "Debug memory allocations"
depends on DEBUG_KERNEL
help
Say Y here to have the kernel do limited verification on memory
allocation as well as poisoning memory on free to catch use of freed
memory.
config KALLSYMS
bool "Load all symbols for debugging/kksymoops"
depends on DEBUG_KERNEL
help
Say Y here to let the kernel print out symbolic crash information and
symbolic stack backtraces. This increases the size of the kernel
somewhat, as all symbols have to be loaded into the kernel image.
config DEBUG_INFO
bool "Compile the kernel with debug info"
depends on DEBUG_KERNEL
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use gdb to debug the kernel.
If you don't debug the kernel, you can say N.
config DEBUG_SPINLOCK_SLEEP
bool "Sleep-inside-spinlock checking"
help
If you say Y here, various routines which may sleep will become very
noisy if they are called with a spinlock held.
endmenu
source "arch/s390/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
arch/s390/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
endmenu
arch/s390/Makefile
View file @ 6aac46e3
......@@ -28,12 +28,12 @@ AFLAGS += -m64
UTS_MACHINE := s390x
endif
cflags-$(CONFIG_MARCH_G5) += $(call check_gcc,-march=g5,)
cflags-$(CONFIG_MARCH_Z900) += $(call check_gcc,-march=z900,)
cflags-$(CONFIG_MARCH_Z990) += $(call check_gcc,-march=z990,)
cflags-$(CONFIG_MARCH_G5) += $(call cc-option,-march=g5)
cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900)
cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990)
CFLAGS += $(cflags-y)
CFLAGS += $(call check_gcc,-finline-limit=10000,)
CFLAGS += $(call cc-option,-finline-limit=10000)
CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare
CFLAGS += -mbackchain
......
arch/s390/kernel/Makefile
View file @ 6aac46e3
......@@ -10,7 +10,7 @@ obj-y := bitmap.o traps.o time.o process.o \
extra-$(CONFIG_ARCH_S390_31) += head.o
extra-$(CONFIG_ARCH_S390X) += head64.o
extra-y += init_task.o vmlinux.lds.s
extra-y += init_task.o vmlinux.lds
obj-$(CONFIG_MODULES) += s390_ksyms.o module.o
obj-$(CONFIG_SMP) += smp.o
......
arch/sh/Kconfig
View file @ 6aac46e3
......@@ -194,7 +194,7 @@ endchoice
choice
prompt "Processor subtype"
config CPU_SUBTYPE_SH7604
bool "SH7604"
depends on CPU_SH2
......@@ -301,7 +301,7 @@ config MEMORY_START
---help---
Computers built with Hitachi SuperH processors always
map the ROM starting at address zero. But the processor
does not specify the range that RAM takes.
does not specify the range that RAM takes.
The physical memory (RAM) start address will be automatically
set to 08000000, unless you selected one of the following
......@@ -339,7 +339,7 @@ config MEMORY_SET
# If none of the above have set memory start/size, ask the user.
config MEMORY_OVERRIDE
bool "Override default load address and memory size"
# XXX: break these out into the board-specific configs below
config CF_ENABLER
bool "Compact Flash Enabler support"
......@@ -522,7 +522,7 @@ config SH_STORE_QUEUES
help
Selecting this option will enable an in-kernel API for manipulating
the store queues integrated in the SH-4 processors.
config SMP
bool "Symmetric multi-processing support"
---help---
......@@ -711,7 +711,6 @@ source "drivers/pci/hotplug/Kconfig"
endmenu
menu "Executable file formats"
source "fs/Kconfig.binfmt"
......@@ -742,161 +741,10 @@ source "fs/Kconfig"
source "arch/sh/oprofile/Kconfig"
menu "Kernel hacking"
config MAGIC_SYSRQ
bool "Magic SysRq key"
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
config DEBUG_SPINLOCK
bool "Spinlock debugging"
help
Say Y here and build SMP to catch missing spinlock initialization
and certain other kinds of spinlock errors commonly made. This is
best used in conjunction with the NMI watchdog so that spinlock
deadlocks are also debuggable.
config DEBUG_INFO
bool "Compile the kernel with debug info"
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use gdb to debug the kernel.
If you don't debug the kernel, you can say N.
config SH_STANDARD_BIOS
bool "Use LinuxSH standard BIOS"
help
Say Y here if your target has the gdb-sh-stub
package from www.m17n.org (or any conforming standard LinuxSH BIOS)
in FLASH or EPROM. The kernel will use standard BIOS calls during
boot for various housekeeping tasks (including calls to read and
write characters to a system console, get a MAC address from an
on-board Ethernet interface, and shut down the hardware). Note this
does not work with machines with an existing operating system in
mask ROM and no flash (WindowsCE machines fall in this category).
If unsure, say N.
config EARLY_SCIF_CONSOLE
bool "Use early SCIF console"
depends on CPU_SH4
config EARLY_PRINTK
bool "Early printk support"
depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE
help
Say Y here to redirect kernel printk messages to the serial port
used by the SH-IPL bootloader, starting very early in the boot
process and ending when the kernel's serial console is initialised.
This option is only useful porting the kernel to a new machine,
when the kernel may crash or hang before the serial console is
initialised. If unsure, say N.
config KGDB
bool "Include KGDB kernel debugger"
help
Include in-kernel hooks for kgdb, the Linux kernel source level
debugger. See <http://kgdb.sourceforge.net/> for more information.
Unless you are intending to debug the kernel, say N here.
menu "KGDB configuration options"
depends on KGDB
config MORE_COMPILE_OPTIONS
bool "Add any additional compile options"
help
If you want to add additional CFLAGS to the kernel build, enable this
option and then enter what you would like to add in the next question.
Note however that -g is already appended with the selection of KGDB.
config COMPILE_OPTIONS
string "Additional compile arguments"
depends on MORE_COMPILE_OPTIONS
config KGDB_NMI
bool "Enter KGDB on NMI"
default n
config KGDB_THREAD
bool "Include KGDB thread support"
default y
config SH_KGDB_CONSOLE
bool "Console messages through GDB"
default n
config KGDB_SYSRQ
bool "Allow SysRq 'G' to enter KGDB"
default y
config KGDB_KERNEL_ASSERTS
bool "Include KGDB kernel assertions"
default n
comment "Serial port setup"
config KGDB_DEFPORT
int "Port number (ttySCn)"
default "1"
config KGDB_DEFBAUD
int "Baud rate"
default "115200"
choice
prompt "Parity"
depends on KGDB
default KGDB_DEFPARITY_N
config KGDB_DEFPARITY_N
bool "None"
config KGDB_DEFPARITY_E
bool "Even"
config KGDB_DEFPARITY_O
bool "Odd"
endchoice
choice
prompt "Data bits"
depends on KGDB
default KGDB_DEFBITS_8
config KGDB_DEFBITS_8
bool "8"
config KGDB_DEFBITS_7
bool "7"
endchoice
endmenu
config FRAME_POINTER
bool "Compile the kernel with frame pointers"
default y if KGDB
help
If you say Y here the resulting kernel image will be slightly larger
and slower, but it will give very useful debugging information.
If you don't debug the kernel, you can say N, but we may not be able
to solve problems without frame pointers.
endmenu
source "arch/sh/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
arch/sh/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
config SH_STANDARD_BIOS
bool "Use LinuxSH standard BIOS"
help
Say Y here if your target has the gdb-sh-stub
package from www.m17n.org (or any conforming standard LinuxSH BIOS)
in FLASH or EPROM. The kernel will use standard BIOS calls during
boot for various housekeeping tasks (including calls to read and
write characters to a system console, get a MAC address from an
on-board Ethernet interface, and shut down the hardware). Note this
does not work with machines with an existing operating system in
mask ROM and no flash (WindowsCE machines fall in this category).
If unsure, say N.
config EARLY_SCIF_CONSOLE
bool "Use early SCIF console"
depends on CPU_SH4
config EARLY_PRINTK
bool "Early printk support"
depends on SH_STANDARD_BIOS || EARLY_SCIF_CONSOLE
help
Say Y here to redirect kernel printk messages to the serial port
used by the SH-IPL bootloader, starting very early in the boot
process and ending when the kernel's serial console is initialised.
This option is only useful porting the kernel to a new machine,
when the kernel may crash or hang before the serial console is
initialised. If unsure, say N.
config KGDB
bool "Include KGDB kernel debugger"
help
Include in-kernel hooks for kgdb, the Linux kernel source level
debugger. See <http://kgdb.sourceforge.net/> for more information.
Unless you are intending to debug the kernel, say N here.
menu "KGDB configuration options"
depends on KGDB
config MORE_COMPILE_OPTIONS
bool "Add any additional compile options"
help
If you want to add additional CFLAGS to the kernel build, enable this
option and then enter what you would like to add in the next question.
Note however that -g is already appended with the selection of KGDB.
config COMPILE_OPTIONS
string "Additional compile arguments"
depends on MORE_COMPILE_OPTIONS
config KGDB_NMI
bool "Enter KGDB on NMI"
default n
config KGDB_THREAD
bool "Include KGDB thread support"
default y
config SH_KGDB_CONSOLE
bool "Console messages through GDB"
default n
config KGDB_SYSRQ
bool "Allow SysRq 'G' to enter KGDB"
default y
config KGDB_KERNEL_ASSERTS
bool "Include KGDB kernel assertions"
default n
comment "Serial port setup"
config KGDB_DEFPORT
int "Port number (ttySCn)"
default "1"
config KGDB_DEFBAUD
int "Baud rate"
default "115200"
choice
prompt "Parity"
depends on KGDB
default KGDB_DEFPARITY_N
config KGDB_DEFPARITY_N
bool "None"
config KGDB_DEFPARITY_E
bool "Even"
config KGDB_DEFPARITY_O
bool "Odd"
endchoice
choice
prompt "Data bits"
depends on KGDB
default KGDB_DEFBITS_8
config KGDB_DEFBITS_8
bool "8"
config KGDB_DEFBITS_7
bool "7"
endchoice
endmenu
config FRAME_POINTER
bool "Compile the kernel with frame pointers"
default y if KGDB
help
If you say Y here the resulting kernel image will be slightly larger
and slower, but it will give very useful debugging information.
If you don't debug the kernel, you can say N, but we may not be able
to solve problems without frame pointers.
endmenu
arch/sh/Makefile
View file @ 6aac46e3
......@@ -31,7 +31,7 @@ cflags-$(CONFIG_CPU_LITTLE_ENDIAN) := -ml
cflags-$(CONFIG_CPU_SH2) += -m2
cflags-$(CONFIG_CPU_SH3) += -m3
cflags-$(CONFIG_CPU_SH4) += -m4 \
$(call check_gcc,-mno-implicit-fp,-m4-nofpu)
$(call cc-option,-mno-implicit-fp,-m4-nofpu)
cflags-$(CONFIG_SH_DSP) += -Wa,-dsp
cflags-$(CONFIG_SH_KGDB) += -g
......@@ -122,7 +122,7 @@ drivers-$(CONFIG_OPROFILE) += arch/sh/oprofile/
boot := arch/sh/boot
AFLAGS_vmlinux.lds.o := -traditional
CPPFLAGS_vmlinux.lds := -traditional
prepare: target_links
......
arch/sh/boot/compressed/Makefile
View file @ 6aac46e3
......@@ -22,7 +22,7 @@ CONFIG_MEMORY_START ?= 0x0c000000
CONFIG_BOOT_LINK_OFFSET ?= 0x00800000
IMAGE_OFFSET := $(shell printf "0x%8x" $$[0x80000000+$(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET)])
LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup -T $(obj)/../../kernel/vmlinux.lds.s
LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup -T $(obj)/../../kernel/vmlinux.lds
$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o FORCE
$(call if_changed,ld)
......
arch/sh/kernel/Makefile
View file @ 6aac46e3
......@@ -2,7 +2,7 @@
# Makefile for the Linux/SuperH kernel.
#
extra-y := head.o init_task.o vmlinux.lds.s
extra-y := head.o init_task.o vmlinux.lds
obj-y := process.o signal.o entry.o traps.o irq.o \
ptrace.o setup.o time.o sys_sh.o semaphore.o \
......
arch/sh64/Kconfig
View file @ 6aac46e3
......@@ -263,58 +263,10 @@ source "fs/Kconfig"
source "arch/sh64/oprofile/Kconfig"
menu "Kernel hacking"
config MAGIC_SYSRQ
bool "Magic SysRq key"
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in Documentation/sysrq.txt. Don't say Y unless
you really know what this hack does.
config EARLY_PRINTK
bool "Early SCIF console support"
config DEBUG_KERNEL_WITH_GDB_STUB
bool "GDB Stub kernel debug"
config SH64_PROC_TLB
bool "Debug: report TLB fill/purge activity through /proc/tlb"
depends on PROC_FS
config SH64_PROC_ASIDS
bool "Debug: report ASIDs through /proc/asids"
depends on PROC_FS
config SH64_SR_WATCH
bool "Debug: set SR.WATCH to enable hardware watchpoints and trace"
config SH_ALPHANUMERIC
bool "Enable debug outputs to on-board alphanumeric display"
config SH_NO_BSS_INIT
bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)"
config FRAME_POINTER
bool "Compile the kernel with frame pointers"
default y if KGDB
help
If you say Y here the resulting kernel image will be slightly larger
and slower, but it will give very useful debugging information.
If you don't debug the kernel, you can say N, but we may not be able
to solve problems without frame pointers.
endmenu
source "arch/sh64/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
arch/sh64/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
config EARLY_PRINTK
bool "Early SCIF console support"
config DEBUG_KERNEL_WITH_GDB_STUB
bool "GDB Stub kernel debug"
config SH64_PROC_TLB
bool "Debug: report TLB fill/purge activity through /proc/tlb"
depends on PROC_FS
config SH64_PROC_ASIDS
bool "Debug: report ASIDs through /proc/asids"
depends on PROC_FS
config SH64_SR_WATCH
bool "Debug: set SR.WATCH to enable hardware watchpoints and trace"
config SH_ALPHANUMERIC
bool "Enable debug outputs to on-board alphanumeric display"
config SH_NO_BSS_INIT
bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)"
config FRAME_POINTER
bool "Compile the kernel with frame pointers"
default y if KGDB
help
If you say Y here the resulting kernel image will be slightly larger
and slower, but it will give very useful debugging information.
If you don't debug the kernel, you can say N, but we may not be able
to solve problems without frame pointers.
endmenu
arch/sh64/boot/compressed/Makefile
View file @ 6aac46e3
......@@ -12,7 +12,7 @@
#
targets := vmlinux vmlinux.bin vmlinux.bin.gz \
head.o misc.o cache.o piggy.o vmlinux.lds.o
head.o misc.o cache.o piggy.o vmlinux.lds
EXTRA_AFLAGS := -traditional
......@@ -25,7 +25,7 @@ OBJECTS := $(obj)/head.o $(obj)/misc.o $(obj)/cache.o
ZIMAGE_OFFSET = $(shell printf "0x%8x" $$[$(CONFIG_MEMORY_START)+0x400000+0x10000])
LDFLAGS_vmlinux := -Ttext $(ZIMAGE_OFFSET) -e startup \
-T $(obj)/../../kernel/vmlinux.lds.s \
-T $(obj)/../../kernel/vmlinux.lds \
--no-warn-mismatch
$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o FORCE
......@@ -41,6 +41,6 @@ $(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
LDFLAGS_piggy.o := -r --format binary --oformat elf32-sh64-linux -T
OBJCOPYFLAGS += -R .empty_zero_page
$(obj)/piggy.o: $(obj)/vmlinux.lds.s $(obj)/vmlinux.bin.gz FORCE
$(obj)/piggy.o: $(obj)/vmlinux.lds $(obj)/vmlinux.bin.gz FORCE
$(call if_changed,ld)
arch/sparc/Kconfig
View file @ 6aac46e3
......@@ -23,7 +23,6 @@ config GENERIC_ISA_DMA
source "init/Kconfig"
menu "General setup"
config VT
......@@ -217,8 +216,8 @@ config SUN_PM
bool
default y
help
Enable power management and CPU standby features on supported
SPARC platforms.
Enable power management and CPU standby features on supported
SPARC platforms.
config SUN4
bool "Support for SUN4 machines (disables SUN4[CDM] support)"
......@@ -380,81 +379,10 @@ source "drivers/usb/Kconfig"
source "drivers/char/watchdog/Kconfig"
menu "Kernel hacking"
config DEBUG_KERNEL
bool "Kernel debugging"
help
Say Y here if you are developing drivers or trying to debug and
identify kernel problems.
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config DEBUG_SLAB
bool "Debug memory allocations"
depends on DEBUG_KERNEL
help
Say Y here to have the kernel do limited verification on memory
allocation as well as poisoning memory on free to catch use of freed
memory.
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
config DEBUG_SPINLOCK
bool "Spinlock debugging"
depends on DEBUG_KERNEL
help
Say Y here and build SMP to catch missing spinlock initialization
and certain other kinds of spinlock errors commonly made. This is
best used in conjunction with the NMI watchdog so that spinlock
deadlocks are also debuggable.
config DEBUG_HIGHMEM
bool "Highmem debugging"
depends on DEBUG_KERNEL && HIGHMEM
help
This options enables additional error checking for high memory
systems. Disable for production systems.
config DEBUG_SPINLOCK_SLEEP
bool "Sleep-inside-spinlock checking"
depends on DEBUG_KERNEL
help
If you say Y here, various routines which may sleep will become very
noisy if they are called with a spinlock held.
config DEBUG_BUGVERBOSE
bool "Verbose BUG() reporting (adds 70K)"
depends on DEBUG_KERNEL
help
Say Y here to make BUG() panics output the file name and line number
of the BUG call as well as the EIP and oops trace. This aids
debugging but costs about 70-100K of memory.
endmenu
source "arch/sparc/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
arch/sparc/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
endmenu
arch/sparc/Makefile
View file @ 6aac46e3
......@@ -13,7 +13,7 @@
AS := $(AS) -32
LDFLAGS := -m elf32_sparc
CHECK := $(CHECK) -D__sparc__=1
CHECKFLAGS += -D__sparc__=1
#CFLAGS := $(CFLAGS) -g -pipe -fcall-used-g5 -fcall-used-g7
CFLAGS := $(CFLAGS) -m32 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7
......
arch/sparc/boot/Makefile
View file @ 6aac46e3
......@@ -7,28 +7,52 @@
ROOT_IMG := /usr/src/root.img
ELFTOAOUT := elftoaout
host-progs := piggyback btfixupprep
targets := tftpboot.img btfix.o btfix.s image
hostprogs-y := piggyback btfixupprep
targets := tftpboot.img btfix.o btfix.S image
quiet_cmd_elftoaout = ELFTOAOUT $@
cmd_elftoaout = $(ELFTOAOUT) $(obj)/image -o $@
quiet_cmd_piggy = PIGGY $@
quiet_cmd_piggy = PIGGY $@
cmd_piggy = $(obj)/piggyback $@ $(obj)/System.map $(ROOT_IMG)
quiet_cmd_btfix = BTFIX $@
quiet_cmd_btfix = BTFIX $@
cmd_btfix = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@
quiet_cmd_sysmap = SYSMAP $(obj)/System.map
cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
quiet_cmd_image = LD $@
cmd_image = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) -o $@
define rule_image
$(if $($(quiet)cmd_image), \
echo ' $($(quiet)cmd_image)' &&) \
$(cmd_image); \
$(if $($(quiet)cmd_sysmap), \
echo ' $($(quiet)cmd_sysmap)' &&) \
$(cmd_sysmap) $@ $(obj)/System.map; \
if [ $$? -ne 0 ]; then \
rm -f $@; \
/bin/false; \
fi; \
echo 'cmd_$@ := $(cmd_image)' > $(@D)/.$(@F).cmd
endef
BTOBJS := $(HEAD_Y) $(INIT_Y)
BTLIBS := $(CORE_Y) $(LIBS_Y) $(DRIVERS_Y) $(NET_Y)
LDFLAGS_image := -T arch/sparc/kernel/vmlinux.lds.s $(BTOBJS) --start-group $(BTLIBS) --end-group $(kallsyms.o)
LDFLAGS_image := -T arch/sparc/kernel/vmlinux.lds $(BTOBJS) \
--start-group $(BTLIBS) --end-group \
$(kallsyms.o) $(obj)/btfix.o
# Actual linking
# Link the final image including btfixup'ed symbols.
# This is a replacement for the link done in the top-level Makefile.
# Note: No dependency on the prerequisite files since that would require
# make to try check if they are updated - and due to changes
# in gcc options (path for example) this would result in
# these files being recompiled for each build.
$(obj)/image: $(obj)/btfix.o FORCE
$(call if_changed,ld)
$(NM) $@ | grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | sort > $(obj)/System.map
$(call if_changed_rule,image)
$(obj)/tftpboot.img: $(obj)/piggyback $(obj)/System.map $(obj)/image FORCE
$(call if_changed,elftoaout)
$(call if_changed,piggy)
$(obj)/btfix.s: $(obj)/btfixupprep vmlinux FORCE
$(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE
$(call if_changed,btfix)
arch/sparc/kernel/Makefile
View file @ 6aac46e3
......@@ -2,7 +2,7 @@
# Makefile for the linux kernel.
#
extra-y := head.o init_task.o vmlinux.lds.s
extra-y := head.o init_task.o vmlinux.lds
EXTRA_AFLAGS := -ansi
......
arch/sparc64/Kconfig
View file @ 6aac46e3
......@@ -14,8 +14,7 @@ config MMU
source "init/Kconfig"
menu "General setup"
menu "General machine setup"
config BBC_I2C
tristate "UltraSPARC-III bootbus i2c controller driver"
......@@ -549,7 +548,6 @@ config UNIX98_PTY_COUNT
endmenu
menu "XFree86 DRI support"
config DRM
......@@ -604,113 +602,10 @@ source "drivers/char/watchdog/Kconfig"
source "arch/sparc64/oprofile/Kconfig"
menu "Kernel hacking"
config DEBUG_KERNEL
bool "Kernel debugging"
help
Say Y here if you are developing drivers or trying to debug and
identify kernel problems.
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config DEBUG_SLAB
bool "Debug memory allocations"
depends on DEBUG_KERNEL
help
Say Y here to have the kernel do limited verification on memory
allocation as well as poisoning memory on free to catch use of freed
memory.
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
config DEBUG_SPINLOCK
bool "Spinlock debugging"
depends on DEBUG_KERNEL
help
Say Y here and build SMP to catch missing spinlock initialization
and certain other kinds of spinlock errors commonly made. This is
best used in conjunction with the NMI watchdog so that spinlock
deadlocks are also debuggable.
config DEBUG_SPINLOCK_SLEEP
bool "Sleep-inside-spinlock checking"
depends DEBUG_KERNEL
help
If you say Y here, various routines which may sleep will become very
noisy if they are called with a spinlock held.
config DEBUG_BUGVERBOSE
bool "Verbose BUG() reporting (adds 70K)"
depends on DEBUG_KERNEL
help
Say Y here to make BUG() panics output the file name and line number
of the BUG call as well as the EIP and oops trace. This aids
debugging but costs about 70-100K of memory.
config DEBUG_DCFLUSH
bool "D-cache flush debugging"
depends on DEBUG_KERNEL
config DEBUG_INFO
bool "Compile the kernel with debug info"
depends on DEBUG_KERNEL
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use gdb to debug the kernel.
If you don't debug the kernel, you can say N.
config STACK_DEBUG
depends on DEBUG_KERNEL
bool "Stack Overflow Detection Support"
config DEBUG_BOOTMEM
depends on DEBUG_KERNEL
bool "Debug BOOTMEM initialization"
# We have a custom atomic_dec_and_lock() implementation but it's not
# compatible with spinlock debugging so we need to fall back on
# the generic version in that case.
config HAVE_DEC_LOCK
bool
depends on SMP && !DEBUG_SPINLOCK
default y
config MCOUNT
bool
depends on STACK_DEBUG
default y
config FRAME_POINTER
bool
depends on MCOUNT
default y
endmenu
source "arch/sparc64/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
arch/sparc64/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
This option will slow down process creation somewhat.
config DEBUG_DCFLUSH
bool "D-cache flush debugging"
depends on DEBUG_KERNEL
config STACK_DEBUG
depends on DEBUG_KERNEL
bool "Stack Overflow Detection Support"
config DEBUG_BOOTMEM
depends on DEBUG_KERNEL
bool "Debug BOOTMEM initialization"
# We have a custom atomic_dec_and_lock() implementation but it's not
# compatible with spinlock debugging so we need to fall back on
# the generic version in that case.
config HAVE_DEC_LOCK
bool
depends on SMP && !DEBUG_SPINLOCK
default y
config MCOUNT
bool
depends on STACK_DEBUG
default y
config FRAME_POINTER
bool
depends on MCOUNT
default y
endmenu
arch/sparc64/Makefile
View file @ 6aac46e3
......@@ -8,16 +8,16 @@
# Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)
#
CHECK := $(CHECK) -D__sparc__=1 -D__sparc_v9__=1
CHECKFLAGS += -D__sparc__=1 -D__sparc_v9__=1
AFLAGS_vmlinux.lds.o += -Usparc
CPPFLAGS_vmlinux.lds += -Usparc
CC := $(shell if $(CC) -m64 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo $(CC); else echo sparc64-linux-gcc; fi )
NEW_GCC := $(shell if $(CC) -m64 -mcmodel=medlow -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo y; else echo n; fi; )
NEW_GCC := $(call cc-option-yn, -m64 -mcmodel=medlow)
NEW_GAS := $(shell if $(LD) -V 2>&1 | grep 'elf64_sparc' > /dev/null; then echo y; else echo n; fi)
UNDECLARED_REGS := $(shell if $(CC) -c -x assembler /dev/null -Wa,--help | grep undeclared-regs > /dev/null; then echo y; else echo n; fi; )
INLINE_LIMIT := $(shell if $(CC) -m64 -finline-limit=100000 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo y; else echo n; fi; )
INLINE_LIMIT := $(call cc-option-yn, -m64 -finline-limit=100000)
export NEW_GCC
......
arch/sparc64/boot/Makefile
View file @ 6aac46e3
......@@ -7,7 +7,7 @@
ROOT_IMG := /usr/src/root.img
ELFTOAOUT := elftoaout
host-progs := piggyback
hostprogs-y := piggyback
targets := image tftpboot.img vmlinux.aout
quiet_cmd_elftoaout = ELF2AOUT $@
......
arch/sparc64/kernel/Makefile
View file @ 6aac46e3
......@@ -5,7 +5,7 @@
EXTRA_AFLAGS := -ansi
EXTRA_CFLAGS := -Werror
extra-y := head.o init_task.o vmlinux.lds.s
extra-y := head.o init_task.o vmlinux.lds
obj-y := process.o setup.o cpu.o idprom.o \
traps.o devices.o auxio.o \
......
arch/um/Kconfig
View file @ 6aac46e3
......@@ -34,7 +34,7 @@ config MODE_TT
help
This option controls whether tracing thread support is compiled
into UML. Normally, this should be set to Y. If you intend to
use only skas mode (and the host has the skas patch applied to it),
use only skas mode (and the host has the skas patch applied to it),
then it is OK to say N here.
config STATIC_LINK
......@@ -45,7 +45,7 @@ config STATIC_LINK
If CONFIG_MODE_TT is disabled, then this option gives you the ability
to force a static link of UML. Normally, if only skas mode is built
in to UML, it will be linked as a shared binary. This is inconvenient
for use in a chroot jail. So, if you intend to run UML inside a
for use in a chroot jail. So, if you intend to run UML inside a
chroot, and you disable CONFIG_MODE_TT, you probably want to say Y
here.
......@@ -82,7 +82,7 @@ config HOSTFS
For more information, see
<http://user-mode-linux.sourceforge.net/hostfs.html>.
If you'd like to be able to work with files stored on the host,
If you'd like to be able to work with files stored on the host,
say Y or M here; otherwise say N.
......@@ -102,10 +102,6 @@ config MCONSOLE
It is safe to say 'Y' here.
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on MCONSOLE
config HOST_2G_2G
bool "2G/2G host address space split"
......@@ -140,11 +136,11 @@ config NEST_LEVEL
in. Normally, this is zero, meaning that it will run directly on the
host. Setting it to one will build a UML that can run inside a UML
that is running on the host. Generally, if you intend this UML to run
inside another UML, set CONFIG_NEST_LEVEL to one more than the host
inside another UML, set CONFIG_NEST_LEVEL to one more than the host
UML.
Note that if the hosting UML has its CONFIG_KERNEL_HALF_GIGS set to
greater than one, then the guest UML should have its CONFIG_NEST_LEVEL
Note that if the hosting UML has its CONFIG_KERNEL_HALF_GIGS set to
greater than one, then the guest UML should have its CONFIG_NEST_LEVEL
set to the host's CONFIG_NEST_LEVEL + CONFIG_KERNEL_HALF_GIGS.
Only change this if you are running nested UMLs.
......@@ -213,59 +209,4 @@ source "drivers/md/Kconfig"
source "drivers/mtd/Kconfig"
menu "Kernel hacking"
config DEBUG_SLAB
bool "Debug memory allocations"
config DEBUG_SPINLOCK
bool "Debug spinlocks usage"
config DEBUG_INFO
bool "Enable kernel debugging symbols"
help
When this is enabled, the User-Mode Linux binary will include
debugging symbols. This enlarges the binary by a few megabytes,
but aids in tracking down kernel problems in UML. It is required
if you intend to do any kernel development.
If you're truly short on disk space or don't expect to report any
bugs back to the UML developers, say N, otherwise say Y.
config FRAME_POINTER
bool
default y if DEBUG_INFO
config PT_PROXY
bool "Enable ptrace proxy"
depends on XTERM_CHAN && DEBUG_INFO
config GPROF
bool "Enable gprof support"
depends on DEBUG_INFO
help
This allows profiling of a User-Mode Linux kernel with the gprof
utility.
See <http://user-mode-linux.sourceforge.net/gprof.html> for more
details.
If you're involved in UML kernel development and want to use gprof,
say Y. If you're unsure, say N.
config GCOV
bool "Enable gcov support"
depends on DEBUG_INFO
help
This option allows developers to retrieve coverage data from a UML
session.
See <http://user-mode-linux.sourceforge.net/gprof.html> for more
details.
If you're involved in UML kernel development and want to use gcov,
say Y. If you're unsure, say N.
endmenu
source "arch/um/Kconfig.debug"
arch/um/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
config FRAME_POINTER
bool
default y if DEBUG_INFO
config PT_PROXY
bool "Enable ptrace proxy"
depends on XTERM_CHAN && DEBUG_INFO
config GPROF
bool "Enable gprof support"
depends on DEBUG_INFO
help
This allows profiling of a User-Mode Linux kernel with the gprof
utility.
See <http://user-mode-linux.sourceforge.net/gprof.html> for more
details.
If you're involved in UML kernel development and want to use gprof,
say Y. If you're unsure, say N.
config GCOV
bool "Enable gcov support"
depends on DEBUG_INFO
help
This option allows developers to retrieve coverage data from a UML
session.
See <http://user-mode-linux.sourceforge.net/gprof.html> for more
details.
If you're involved in UML kernel development and want to use gcov,
say Y. If you're unsure, say N.
endmenu
arch/um/Makefile
View file @ 6aac46e3
......@@ -77,7 +77,7 @@ vmlinux: $(ARCH_DIR)/main.o
# CONFIG_MODE_SKAS + CONFIG_STATIC_LINK case.
LINK_TT = -static
LD_SCRIPT_TT := uml.lds.s
LD_SCRIPT_TT := uml.lds
ifeq ($(CONFIG_STATIC_LINK),y)
LINK-y += $(LINK_TT)
......@@ -98,12 +98,12 @@ CPP_MODE_TT := $(shell [ "$(CONFIG_MODE_TT)" = "y" ] && echo -DMODE_TT)
CONFIG_KERNEL_STACK_ORDER ?= 2
STACK_SIZE := $(shell echo $$[ 4096 * (1 << $(CONFIG_KERNEL_STACK_ORDER)) ] )
AFLAGS_vmlinux.lds.o = -U$(SUBARCH) \
CPPFLAGS_vmlinux.lds = -U$(SUBARCH) \
-DSTART=$$(($(TOP_ADDR) - $(SIZE))) -DELF_ARCH=$(ELF_ARCH) \
-DELF_FORMAT=\"$(ELF_FORMAT)\" $(CPP_MODE_TT) \
-DKERNEL_STACK_SIZE=$(STACK_SIZE)
AFLAGS_$(LD_SCRIPT-y:.s=).o = $(AFLAGS_vmlinux.lds.o) -P -C -Uum
CPPFLAGS_$(LD_SCRIPT-y) = $(CPPFLAGS_vmlinux.lds) -P -C -Uum
LD_SCRIPT-y := $(ARCH_DIR)/$(LD_SCRIPT-y)
......@@ -122,7 +122,7 @@ USER_CFLAGS := $(patsubst -D__KERNEL__,,$(USER_CFLAGS)) $(ARCH_INCLUDE) \
# To get a definition of F_SETSIG
USER_CFLAGS += -D_GNU_SOURCE
CLEAN_FILES += linux x.i gmon.out $(ARCH_DIR)/uml.lds.s \
CLEAN_FILES += linux x.i gmon.out $(ARCH_DIR)/uml.lds \
$(ARCH_DIR)/dyn_link.ld.s $(GEN_HEADERS)
$(ARCH_DIR)/main.o: $(ARCH_DIR)/main.c
......
arch/um/Makefile-skas
View file @ 6aac46e3
......@@ -12,7 +12,7 @@ LINK-$(CONFIG_GPROF) += $(PROFILE)
MODE_INCLUDE += -I$(TOPDIR)/$(ARCH_DIR)/kernel/skas/include
LINK_SKAS = -Wl,-rpath,/lib
LD_SCRIPT_SKAS = dyn.lds.s
LD_SCRIPT_SKAS = dyn.lds
GEN_HEADERS += $(ARCH_DIR)/kernel/skas/include/skas_ptregs.h
......
arch/um/kernel/Makefile
View file @ 6aac46e3
......@@ -3,7 +3,7 @@
# Licensed under the GPL
#
extra-y := vmlinux.lds.s
extra-y := vmlinux.lds
obj-y = checksum.o config.o exec_kern.o exitcode.o frame_kern.o frame.o \
helper.o init_task.o irq.o irq_user.o ksyms.o mem.o mem_user.o \
......
arch/um/sys-i386/util/Makefile
View file @ 6aac46e3
host-progs := mk_sc
always := $(host-progs) mk_thread
hostprogs-y := mk_sc
always := $(hostprogs-y) mk_thread
targets := mk_thread_kern.o mk_thread_user.o
mk_sc-objs := mk_sc.o
......
arch/v850/Kconfig
View file @ 6aac46e3
......@@ -68,7 +68,6 @@ menu "Processor type and features"
bool "Anna"
endchoice
#### V850E processor-specific config
# All CPUs currently supported use the v850e architecture
......@@ -153,7 +152,6 @@ menu "Processor type and features"
bool
default RTE_MB_A_PCI
#### Some feature-specific configs
# Everything except for the GDB simulator uses the same interrupt controller
......@@ -181,7 +179,6 @@ menu "Processor type and features"
bool
default !V850E_CACHE && !V850E2_CACHE
#### Misc config
config ROM_KERNEL
......@@ -305,34 +302,7 @@ source "sound/Kconfig"
source "drivers/usb/Kconfig"
menu "Kernel hacking"
config DEBUG_KERNEL
bool "Kernel debugging"
config DEBUG_INFO
bool "Compile the kernel with debug info"
depends on DEBUG_KERNEL
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use gdb to debug the kernel.
If you don't debug the kernel, you can say N.
config MAGIC_SYSRQ
bool "Magic SysRq key"
depends on DEBUG_KERNEL
help
Enables console device to interprent special characters as
commands to dump state information.
config NO_KERNEL_MSG
bool "Suppress Kernel BUG Messages"
help
Do not output any debug BUG messages within the kernel.
endmenu
source "arch/v850/Kconfig.debug"
source "security/Kconfig"
......
arch/v850/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
config NO_KERNEL_MSG
bool "Suppress Kernel BUG Messages"
help
Do not output any debug BUG messages within the kernel.
endmenu
arch/v850/kernel/Makefile
View file @ 6aac46e3
......@@ -9,7 +9,7 @@
# for more details.
#
extra-y := head.o init_task.o vmlinux.lds.s
extra-y := head.o init_task.o vmlinux.lds
obj-y += intv.o entry.o process.o syscalls.o time.o semaphore.o setup.o \
signal.o irq.o mach.o ptrace.o bug.o
......
arch/x86_64/Kconfig
View file @ 6aac46e3
......@@ -4,7 +4,7 @@
#
# Note: ISA is disabled and will hopefully never be enabled.
# If you managed to buy an ISA x86-64 box you'll have to fix all the
# ISA drivers you need yourself.
# ISA drivers you need yourself.
#
mainmenu "Linux Kernel Configuration"
......@@ -57,7 +57,7 @@ config EARLY_PRINTK
it is not recommended because it looks ugly and doesn't cooperate
with klogd/syslogd or the X server. You should normally N here,
unless you want to debug such a crash.
config HPET_TIMER
bool
default y
......@@ -90,14 +90,14 @@ choice
config MK8
bool "AMD-Opteron/Athlon64"
help
Optimize for AMD Opteron/Athlon64/Hammer/K8 CPUs.
Optimize for AMD Opteron/Athlon64/Hammer/K8 CPUs.
config MPSC
bool "Intel x86-64"
bool "Intel x86-64"
help
Optimize for Intel IA32 with 64bit extension CPUs
(Prescott/Nocona/Potomac)
config GENERIC_CPU
bool "Generic-x86-64"
help
......@@ -130,8 +130,8 @@ config MICROCODE
tristate "/dev/cpu/microcode - Intel CPU microcode support"
---help---
If you say Y here the 'File systems' section, you will be
able to update the microcode on Intel processors. You will
obviously need the actual microcode binary data itself which is
able to update the microcode on Intel processors. You will
obviously need the actual microcode binary data itself which is
not shipped with the Linux kernel.
For latest news and information on obtaining all the required
......@@ -165,7 +165,7 @@ config X86_HT
bool
depends on SMP && !MK8
default y
config MATH_EMULATION
bool
......@@ -231,13 +231,13 @@ config PREEMPT
be preempted even if it is in kernel mode executing a system call.
This allows applications to run more reliably even when the system is
under load. On contrary it may also break your drivers and add
priority inheritance problems to your system. Don't select it if
priority inheritance problems to your system. Don't select it if
you rely on a stable system or have slightly obscure hardware.
It's also not very well tested on x86-64 currently.
You have been warned.
Say Y here if you are feeling brave and building a kernel for a
desktop, embedded or real-time system. Say N if you are unsure.
Say Y here if you are feeling brave and building a kernel for a
desktop, embedded or real-time system. Say N if you are unsure.
config SCHED_SMT
bool "SMT (Hyperthreading) scheduler support"
......@@ -297,7 +297,7 @@ config GART_IOMMU
properly with 32-bit PCI devices that do not support DAC (Double Address
Cycle). The IOMMU can be turned off at runtime with the iommu=off parameter.
Normally the kernel will take the right choice by itself.
If unsure say Y
If unsure, say Y.
# need this always enabled with GART_IOMMU for the VIA workaround
config SWIOTLB
......@@ -310,7 +310,7 @@ config DUMMY_IOMMU
depends on !GART_IOMMU && !SWIOTLB
default y
help
Don't use IOMMU code. This will cause problems when you have more than 4GB
Don't use IOMMU code. This will cause problems when you have more than 4GB
of memory and any 32-bit devices. Don't turn on unless you know what you
are doing.
......@@ -336,14 +336,14 @@ menu "Bus options (PCI etc.)"
config PCI
bool "PCI support"
# x86-64 doesn't support PCI BIOS access from long mode so always go direct.
# x86-64 doesn't support PCI BIOS access from long mode so always go direct.
config PCI_DIRECT
bool
depends on PCI
default y
config PCI_MMCONFIG
bool "Support mmconfig PCI config space access"
config PCI_MMCONFIG
bool "Support mmconfig PCI config space access"
depends on PCI
select ACPI_BOOT
......@@ -398,110 +398,10 @@ source fs/Kconfig
source "arch/x86_64/oprofile/Kconfig"
menu "Kernel hacking"
config DEBUG_KERNEL
bool "Kernel debugging"
help
Say Y here if you are developing drivers or trying to debug and
identify kernel problems.
config DEBUG_SLAB
bool "Debug memory allocations"
depends on DEBUG_KERNEL
help
Say Y here to have the kernel do limited verification on memory
allocation as well as poisoning memory on free to catch use of freed
memory.
config MAGIC_SYSRQ
bool "Magic SysRq key"
help
If you say Y here, you will have some control over the system even
if the system crashes for example during kernel debugging (e.g., you
will be able to flush the buffer cache to disk, reboot the system
immediately or dump some status information). This is accomplished
by pressing various keys while holding SysRq (Alt+PrintScreen). It
also works on a serial console (on PC hardware at least), if you
send a BREAK and then within 5 seconds a command keypress. The
keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
unless you really know what this hack does.
config DEBUG_SPINLOCK
bool "Spinlock debugging"
depends on DEBUG_KERNEL
help
Say Y here and build SMP to catch missing spinlock initialization
and certain other kinds of spinlock errors commonly made. This is
best used in conjunction with the NMI watchdog so that spinlock
deadlocks are also debuggable.
# !SMP for now because the context switch early causes GPF in segment reloading
# and the GS base checking does the wrong thing then, causing a hang.
config CHECKING
bool "Additional run-time checks"
depends on DEBUG_KERNEL && !SMP
help
Enables some internal consistency checks for kernel debugging.
You should normally say N.
config INIT_DEBUG
bool "Debug __init statements"
depends on DEBUG_KERNEL
help
Fill __init and __initdata at the end of boot. This helps debugging
illegal uses of __init and __initdata after initialization.
config DEBUG_INFO
bool "Compile the kernel with debug info"
depends on DEBUG_KERNEL
help
If you say Y here the resulting kernel image will include
debugging info resulting in a larger kernel image.
Say Y here only if you plan to use gdb to debug the kernel.
Please note that this option requires new binutils.
If you don't debug the kernel, you can say N.
config FRAME_POINTER
bool "Compile the kernel with frame pointers"
help
Compile the kernel with frame pointers. This may help for some
debugging with external debuggers. Note the standard oops backtracer
doesn't make use of this and the x86-64 kernel doesn't ensure an consistent
frame pointer through inline assembly (semaphores etc.)
Normally you should say N.
config IOMMU_DEBUG
depends on GART_IOMMU && DEBUG_KERNEL
bool "Enable IOMMU debugging"
help
Force the IOMMU to on even when you have less than 4GB of
memory and add debugging code. On overflow always panic. And
allow to enable IOMMU leak tracing. Can be disabled at boot
time with iommu=noforce. This will also enable scatter gather
list merging. Currently not recommended for production
code. When you use it make sure you have a big enough
IOMMU/AGP aperture. Most of the options enabled by this can
be set more finegrained using the iommu= command line
options. See Documentation/x86_64/boot-options.txt for more
details.
config IOMMU_LEAK
bool "IOMMU leak tracing"
depends on DEBUG_KERNEL
depends on IOMMU_DEBUG
help
Add a simple leak tracer to the IOMMU code. This is useful when you
are debugging a buggy device driver that leaks IOMMU mappings.
#config X86_REMOTE_DEBUG
# bool "kgdb debugging stub"
endmenu
source "arch/x86_64/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
arch/x86_64/Kconfig.debug 0 → 100644
View file @ 6aac46e3
menu "Kernel hacking"
source "lib/Kconfig.debug"
# !SMP for now because the context switch early causes GPF in segment reloading
# and the GS base checking does the wrong thing then, causing a hang.
config CHECKING
bool "Additional run-time checks"
depends on DEBUG_KERNEL && !SMP
help
Enables some internal consistency checks for kernel debugging.
You should normally say N.
config INIT_DEBUG
bool "Debug __init statements"
depends on DEBUG_KERNEL
help
Fill __init and __initdata at the end of boot. This helps debugging
illegal uses of __init and __initdata after initialization.
config FRAME_POINTER
bool "Compile the kernel with frame pointers"
help
Compile the kernel with frame pointers. This may help for some
debugging with external debuggers. Note the standard oops backtracer
doesn't make use of this and the x86-64 kernel doesn't ensure a
consistent frame pointer through inline assembly (semaphores etc.)
Normally you should say N.
config IOMMU_DEBUG
depends on GART_IOMMU && DEBUG_KERNEL
bool "Enable IOMMU debugging"
help
Force the IOMMU to on even when you have less than 4GB of
memory and add debugging code. On overflow always panic. And
allow to enable IOMMU leak tracing. Can be disabled at boot
time with iommu=noforce. This will also enable scatter gather
list merging. Currently not recommended for production
code. When you use it make sure you have a big enough
IOMMU/AGP aperture. Most of the options enabled by this can
be set more finegrained using the iommu= command line
options. See Documentation/x86_64/boot-options.txt for more
details.
config IOMMU_LEAK
bool "IOMMU leak tracing"
depends on DEBUG_KERNEL
depends on IOMMU_DEBUG
help
Add a simple leak tracer to the IOMMU code. This is useful when you
are debugging a buggy device driver that leaks IOMMU mappings.
#config X86_REMOTE_DEBUG
# bool "kgdb debugging stub"
endmenu
arch/x86_64/Makefile
View file @ 6aac46e3
......@@ -37,10 +37,10 @@ LDFLAGS := -m elf_x86_64
OBJCOPYFLAGS := -O binary -R .note -R .comment -S
LDFLAGS_vmlinux := -e stext
CHECK := $(CHECK) -D__x86_64__=1
CHECKFLAGS += -D__x86_64__=1
cflags-$(CONFIG_MK8) += $(call check_gcc,-march=k8,)
cflags-$(CONFIG_MPSC) += $(call check_gcc,-march=nocona,)
cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
CFLAGS += $(cflags-y)
CFLAGS += -mno-red-zone
......@@ -54,11 +54,11 @@ ifneq ($(CONFIG_DEBUG_INFO),y)
CFLAGS += -fno-asynchronous-unwind-tables
# -fweb shrinks the kernel a bit, but the difference is very small
# it also messes up debugging, so don't use it for now.
#CFLAGS += $(call check_gcc,-fweb,)
#CFLAGS += $(call cc-option,-fweb)
endif
# -funit-at-a-time shrinks the kernel .text considerably
# unfortunately it makes reading oopses harder.
CFLAGS += $(call check_gcc,-funit-at-a-time,)
CFLAGS += $(call cc-option,-funit-at-a-time)
head-y := arch/x86_64/kernel/head.o arch/x86_64/kernel/head64.o arch/x86_64/kernel/init_task.o
......
arch/x86_64/boot/Makefile
View file @ 6aac46e3
......@@ -30,7 +30,7 @@ targets := vmlinux.bin bootsect bootsect.o \
EXTRA_CFLAGS := -m32
host-progs := tools/build
hostprogs-y := tools/build
subdir- := compressed/ #Let make clean descend in compressed/
# ---------------------------------------------------------------------------
......
arch/x86_64/kernel/Makefile
View file @ 6aac46e3
......@@ -2,7 +2,7 @@
# Makefile for the linux kernel.
#
extra-y := head.o head64.o init_task.o vmlinux.lds.s
extra-y := head.o head64.o init_task.o vmlinux.lds
EXTRA_AFLAGS := -traditional
obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o \
ptrace.o i8259.o ioport.o ldt.o setup.o time.o sys_x86_64.o \
......
arch/x86_64/kernel/Makefile-HEAD
View file @ 6aac46e3
......@@ -2,7 +2,7 @@
# Makefile for the linux kernel.
#
extra-y := head.o head64.o init_task.o vmlinux.lds.s
extra-y := head.o head64.o init_task.o vmlinux.lds
EXTRA_AFLAGS := -traditional
obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o \
ptrace.o i8259.o ioport.o ldt.o setup.o time.o sys_x86_64.o \
......
drivers/atm/Makefile
View file @ 6aac46e3
......@@ -3,7 +3,7 @@
#
fore_200e-objs := fore200e.o
host-progs := fore200e_mkfirm
hostprogs-y := fore200e_mkfirm
# Files generated that shall be removed upon make clean
clean-files := atmsar11.bin atmsar11.bin1 atmsar11.bin2 pca200e.bin \
......
drivers/md/Makefile
View file @ 6aac46e3
......@@ -10,7 +10,7 @@ raid6-objs := raid6main.o raid6algos.o raid6recov.o raid6tables.o \
raid6int1.o raid6int2.o raid6int4.o \
raid6int8.o raid6int16.o raid6int32.o \
raid6mmx.o raid6sse1.o raid6sse2.o
host-progs := mktables
hostprogs-y := mktables
# Note: link order is important. All raid personalities
# and xor.o must come before md.o, as they each initialise
......
drivers/media/dvb/ttpci/Makefile
View file @ 6aac46e3
......@@ -13,7 +13,7 @@ obj-$(CONFIG_DVB_AV7110) += dvb-ttpci.o ttpci-eeprom.o
EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/
host-progs := fdump
hostprogs-y := fdump
ifdef CONFIG_DVB_AV7110_FIRMWARE
$(obj)/av7110.o: $(obj)/fdump $(obj)/av7110_firm.h
......
drivers/pci/Makefile
View file @ 6aac46e3
......@@ -35,7 +35,7 @@ ifndef CONFIG_X86
obj-y += syscall.o
endif
host-progs := gen-devlist
hostprogs-y := gen-devlist
# Dependencies on generated files need to be listed explicitly
$(obj)/names.o: $(obj)/devlist.h $(obj)/classlist.h
......
drivers/zorro/Makefile
View file @ 6aac46e3
......@@ -5,7 +5,7 @@
obj-$(CONFIG_ZORRO) += zorro.o zorro-driver.o zorro-sysfs.o names.o
obj-$(CONFIG_PROC_FS) += proc.o
host-progs := gen-devlist
hostprogs-y := gen-devlist
# Files generated that shall be removed upon make clean
clean-files := devlist.h
......
init/Kconfig
View file @ 6aac46e3
menu "Code maturity level options"
config EXPERIMENTAL
......@@ -53,7 +52,6 @@ config BROKEN_ON_SMP
endmenu
menu "General setup"
config SWAP
......@@ -287,7 +285,6 @@ config CC_OPTIMIZE_FOR_SIZE
endmenu # General setup
menu "Loadable module support"
config MODULES
......
lib/Kconfig.debug 0 → 100644
View file @ 6aac46e3
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scripts/Makefile.build
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