Commit 5d77652f authored by Linus Torvalds's avatar Linus Torvalds

Merge tag 'nolibc.2023.04.04a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull nolibc updates from Paul McKenney:

 - Add support for loongarch

 - Fix stack-protector issues

 - Support additional integral types and signal-related macros

 - Add support for stdin, stdout, and stderr

 - Add getuid() and geteuid()

 - Allow S_I* macros to be overridden by program

 - Defer to linux/fcntl.h and linux/stat.h to avoid duplicate
   definitions

 - Many improvements to the selftests

* tag 'nolibc.2023.04.04a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (22 commits)
  tools/nolibc: x86_64: add stackprotector support
  tools/nolibc: i386: add stackprotector support
  tools/nolibc: tests: add test for -fstack-protector
  tools/nolibc: tests: fold in no-stack-protector cflags
  tools/nolibc: add support for stack protector
  tools/nolibc: tests: constify test_names
  tools/nolibc: add helpers for wait() signal exits
  tools/nolibc: add definitions for standard fds
  selftests/nolibc: Adjust indentation for Makefile
  selftests/nolibc: Add support for LoongArch
  tools/nolibc: Add support for LoongArch
  tools/nolibc: Add statx() and make stat() rely on statx() if necessary
  tools/nolibc: Include linux/fcntl.h and remove duplicate code
  tools/nolibc: check for S_I* macros before defining them
  selftests/nolibc: skip the chroot_root and link_dir tests when not privileged
  tools/nolibc: add getuid() and geteuid()
  tools/nolibc: add tests for the integer limits in stdint.h
  tools/nolibc: enlarge column width of tests
  tools/nolibc: add integer types and integer limit macros
  tools/nolibc: add stdint.h
  ...
parents 4a4075ad 0d8c461a
...@@ -25,8 +25,8 @@ endif ...@@ -25,8 +25,8 @@ endif
nolibc_arch := $(patsubst arm64,aarch64,$(ARCH)) nolibc_arch := $(patsubst arm64,aarch64,$(ARCH))
arch_file := arch-$(nolibc_arch).h arch_file := arch-$(nolibc_arch).h
all_files := ctype.h errno.h nolibc.h signal.h std.h stdio.h stdlib.h string.h \ all_files := ctype.h errno.h nolibc.h signal.h stackprotector.h std.h stdint.h \
sys.h time.h types.h unistd.h stdio.h stdlib.h string.h sys.h time.h types.h unistd.h
# install all headers needed to support a bare-metal compiler # install all headers needed to support a bare-metal compiler
all: headers all: headers
......
...@@ -181,6 +181,8 @@ struct sys_stat_struct { ...@@ -181,6 +181,8 @@ struct sys_stat_struct {
char **environ __attribute__((weak)); char **environ __attribute__((weak));
const unsigned long *_auxv __attribute__((weak)); const unsigned long *_auxv __attribute__((weak));
#define __ARCH_SUPPORTS_STACK_PROTECTOR
/* startup code */ /* startup code */
/* /*
* i386 System V ABI mandates: * i386 System V ABI mandates:
...@@ -188,9 +190,12 @@ const unsigned long *_auxv __attribute__((weak)); ...@@ -188,9 +190,12 @@ const unsigned long *_auxv __attribute__((weak));
* 2) The deepest stack frame should be set to zero * 2) The deepest stack frame should be set to zero
* *
*/ */
void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) _start(void) void __attribute__((weak,noreturn,optimize("omit-frame-pointer"),no_stack_protector)) _start(void)
{ {
__asm__ volatile ( __asm__ volatile (
#ifdef NOLIBC_STACKPROTECTOR
"call __stack_chk_init\n" // initialize stack protector
#endif
"pop %eax\n" // argc (first arg, %eax) "pop %eax\n" // argc (first arg, %eax)
"mov %esp, %ebx\n" // argv[] (second arg, %ebx) "mov %esp, %ebx\n" // argv[] (second arg, %ebx)
"lea 4(%ebx,%eax,4),%ecx\n" // then a NULL then envp (third arg, %ecx) "lea 4(%ebx,%eax,4),%ecx\n" // then a NULL then envp (third arg, %ecx)
......
This diff is collapsed.
...@@ -181,6 +181,8 @@ struct sys_stat_struct { ...@@ -181,6 +181,8 @@ struct sys_stat_struct {
char **environ __attribute__((weak)); char **environ __attribute__((weak));
const unsigned long *_auxv __attribute__((weak)); const unsigned long *_auxv __attribute__((weak));
#define __ARCH_SUPPORTS_STACK_PROTECTOR
/* startup code */ /* startup code */
/* /*
* x86-64 System V ABI mandates: * x86-64 System V ABI mandates:
...@@ -191,6 +193,9 @@ const unsigned long *_auxv __attribute__((weak)); ...@@ -191,6 +193,9 @@ const unsigned long *_auxv __attribute__((weak));
void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) _start(void) void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) _start(void)
{ {
__asm__ volatile ( __asm__ volatile (
#ifdef NOLIBC_STACKPROTECTOR
"call __stack_chk_init\n" // initialize stack protector
#endif
"pop %rdi\n" // argc (first arg, %rdi) "pop %rdi\n" // argc (first arg, %rdi)
"mov %rsp, %rsi\n" // argv[] (second arg, %rsi) "mov %rsp, %rsi\n" // argv[] (second arg, %rsi)
"lea 8(%rsi,%rdi,8),%rdx\n" // then a NULL then envp (third arg, %rdx) "lea 8(%rsi,%rdi,8),%rdx\n" // then a NULL then envp (third arg, %rdx)
......
...@@ -29,6 +29,8 @@ ...@@ -29,6 +29,8 @@
#include "arch-riscv.h" #include "arch-riscv.h"
#elif defined(__s390x__) #elif defined(__s390x__)
#include "arch-s390.h" #include "arch-s390.h"
#elif defined(__loongarch__)
#include "arch-loongarch.h"
#endif #endif
#endif /* _NOLIBC_ARCH_H */ #endif /* _NOLIBC_ARCH_H */
...@@ -104,6 +104,7 @@ ...@@ -104,6 +104,7 @@
#include "string.h" #include "string.h"
#include "time.h" #include "time.h"
#include "unistd.h" #include "unistd.h"
#include "stackprotector.h"
/* Used by programs to avoid std includes */ /* Used by programs to avoid std includes */
#define NOLIBC #define NOLIBC
......
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
/*
* Stack protector support for NOLIBC
* Copyright (C) 2023 Thomas Weißschuh <linux@weissschuh.net>
*/
#ifndef _NOLIBC_STACKPROTECTOR_H
#define _NOLIBC_STACKPROTECTOR_H
#include "arch.h"
#if defined(NOLIBC_STACKPROTECTOR)
#if !defined(__ARCH_SUPPORTS_STACK_PROTECTOR)
#error "nolibc does not support stack protectors on this arch"
#endif
#include "sys.h"
#include "stdlib.h"
/* The functions in this header are using raw syscall macros to avoid
* triggering stack protector errors themselves
*/
__attribute__((weak,noreturn,section(".text.nolibc_stack_chk")))
void __stack_chk_fail(void)
{
pid_t pid;
my_syscall3(__NR_write, STDERR_FILENO, "!!Stack smashing detected!!\n", 28);
pid = my_syscall0(__NR_getpid);
my_syscall2(__NR_kill, pid, SIGABRT);
for (;;);
}
__attribute__((weak,noreturn,section(".text.nolibc_stack_chk")))
void __stack_chk_fail_local(void)
{
__stack_chk_fail();
}
__attribute__((weak,section(".data.nolibc_stack_chk")))
uintptr_t __stack_chk_guard;
__attribute__((weak,no_stack_protector,section(".text.nolibc_stack_chk")))
void __stack_chk_init(void)
{
my_syscall3(__NR_getrandom, &__stack_chk_guard, sizeof(__stack_chk_guard), 0);
/* a bit more randomness in case getrandom() fails */
__stack_chk_guard ^= (uintptr_t) &__stack_chk_guard;
}
#endif // defined(NOLIBC_STACKPROTECTOR)
#endif // _NOLIBC_STACKPROTECTOR_H
...@@ -18,20 +18,7 @@ ...@@ -18,20 +18,7 @@
#define NULL ((void *)0) #define NULL ((void *)0)
#endif #endif
/* stdint types */ #include "stdint.h"
typedef unsigned char uint8_t;
typedef signed char int8_t;
typedef unsigned short uint16_t;
typedef signed short int16_t;
typedef unsigned int uint32_t;
typedef signed int int32_t;
typedef unsigned long long uint64_t;
typedef signed long long int64_t;
typedef unsigned long size_t;
typedef signed long ssize_t;
typedef unsigned long uintptr_t;
typedef signed long intptr_t;
typedef signed long ptrdiff_t;
/* those are commonly provided by sys/types.h */ /* those are commonly provided by sys/types.h */
typedef unsigned int dev_t; typedef unsigned int dev_t;
......
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
/*
* Standard definitions and types for NOLIBC
* Copyright (C) 2023 Vincent Dagonneau <v@vda.io>
*/
#ifndef _NOLIBC_STDINT_H
#define _NOLIBC_STDINT_H
typedef unsigned char uint8_t;
typedef signed char int8_t;
typedef unsigned short uint16_t;
typedef signed short int16_t;
typedef unsigned int uint32_t;
typedef signed int int32_t;
typedef unsigned long long uint64_t;
typedef signed long long int64_t;
typedef unsigned long size_t;
typedef signed long ssize_t;
typedef unsigned long uintptr_t;
typedef signed long intptr_t;
typedef signed long ptrdiff_t;
typedef int8_t int_least8_t;
typedef uint8_t uint_least8_t;
typedef int16_t int_least16_t;
typedef uint16_t uint_least16_t;
typedef int32_t int_least32_t;
typedef uint32_t uint_least32_t;
typedef int64_t int_least64_t;
typedef uint64_t uint_least64_t;
typedef int8_t int_fast8_t;
typedef uint8_t uint_fast8_t;
typedef ssize_t int_fast16_t;
typedef size_t uint_fast16_t;
typedef ssize_t int_fast32_t;
typedef size_t uint_fast32_t;
typedef ssize_t int_fast64_t;
typedef size_t uint_fast64_t;
typedef int64_t intmax_t;
typedef uint64_t uintmax_t;
/* limits of integral types */
#define INT8_MIN (-128)
#define INT16_MIN (-32767-1)
#define INT32_MIN (-2147483647-1)
#define INT64_MIN (-9223372036854775807LL-1)
#define INT8_MAX (127)
#define INT16_MAX (32767)
#define INT32_MAX (2147483647)
#define INT64_MAX (9223372036854775807LL)
#define UINT8_MAX (255)
#define UINT16_MAX (65535)
#define UINT32_MAX (4294967295U)
#define UINT64_MAX (18446744073709551615ULL)
#define INT_LEAST8_MIN INT8_MIN
#define INT_LEAST16_MIN INT16_MIN
#define INT_LEAST32_MIN INT32_MIN
#define INT_LEAST64_MIN INT64_MIN
#define INT_LEAST8_MAX INT8_MAX
#define INT_LEAST16_MAX INT16_MAX
#define INT_LEAST32_MAX INT32_MAX
#define INT_LEAST64_MAX INT64_MAX
#define UINT_LEAST8_MAX UINT8_MAX
#define UINT_LEAST16_MAX UINT16_MAX
#define UINT_LEAST32_MAX UINT32_MAX
#define UINT_LEAST64_MAX UINT64_MAX
#define SIZE_MAX ((size_t)(__LONG_MAX__) * 2 + 1)
#define INTPTR_MIN (-__LONG_MAX__ - 1)
#define INTPTR_MAX __LONG_MAX__
#define PTRDIFF_MIN INTPTR_MIN
#define PTRDIFF_MAX INTPTR_MAX
#define UINTPTR_MAX SIZE_MAX
#define INT_FAST8_MIN INT8_MIN
#define INT_FAST16_MIN INTPTR_MIN
#define INT_FAST32_MIN INTPTR_MIN
#define INT_FAST64_MIN INTPTR_MIN
#define INT_FAST8_MAX INT8_MAX
#define INT_FAST16_MAX INTPTR_MAX
#define INT_FAST32_MAX INTPTR_MAX
#define INT_FAST64_MAX INTPTR_MAX
#define UINT_FAST8_MAX UINT8_MAX
#define UINT_FAST16_MAX SIZE_MAX
#define UINT_FAST32_MAX SIZE_MAX
#define UINT_FAST64_MAX SIZE_MAX
#endif /* _NOLIBC_STDINT_H */
...@@ -11,7 +11,6 @@ ...@@ -11,7 +11,6 @@
#include "std.h" #include "std.h"
/* system includes */ /* system includes */
#include <asm/fcntl.h> // for O_*
#include <asm/unistd.h> #include <asm/unistd.h>
#include <asm/signal.h> // for SIGCHLD #include <asm/signal.h> // for SIGCHLD
#include <asm/ioctls.h> #include <asm/ioctls.h>
...@@ -20,6 +19,8 @@ ...@@ -20,6 +19,8 @@
#include <linux/loop.h> #include <linux/loop.h>
#include <linux/time.h> #include <linux/time.h>
#include <linux/auxvec.h> #include <linux/auxvec.h>
#include <linux/fcntl.h> // for O_* and AT_*
#include <linux/stat.h> // for statx()
#include "arch.h" #include "arch.h"
#include "errno.h" #include "errno.h"
...@@ -410,6 +411,27 @@ int getdents64(int fd, struct linux_dirent64 *dirp, int count) ...@@ -410,6 +411,27 @@ int getdents64(int fd, struct linux_dirent64 *dirp, int count)
} }
/*
* uid_t geteuid(void);
*/
static __attribute__((unused))
uid_t sys_geteuid(void)
{
#ifdef __NR_geteuid32
return my_syscall0(__NR_geteuid32);
#else
return my_syscall0(__NR_geteuid);
#endif
}
static __attribute__((unused))
uid_t geteuid(void)
{
return sys_geteuid();
}
/* /*
* pid_t getpgid(pid_t pid); * pid_t getpgid(pid_t pid);
*/ */
...@@ -544,6 +566,27 @@ int gettimeofday(struct timeval *tv, struct timezone *tz) ...@@ -544,6 +566,27 @@ int gettimeofday(struct timeval *tv, struct timezone *tz)
} }
/*
* uid_t getuid(void);
*/
static __attribute__((unused))
uid_t sys_getuid(void)
{
#ifdef __NR_getuid32
return my_syscall0(__NR_getuid32);
#else
return my_syscall0(__NR_getuid);
#endif
}
static __attribute__((unused))
uid_t getuid(void)
{
return sys_getuid();
}
/* /*
* int ioctl(int fd, unsigned long req, void *value); * int ioctl(int fd, unsigned long req, void *value);
*/ */
...@@ -1048,12 +1091,66 @@ pid_t setsid(void) ...@@ -1048,12 +1091,66 @@ pid_t setsid(void)
return ret; return ret;
} }
#if defined(__NR_statx)
/*
* int statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf);
*/
static __attribute__((unused))
int sys_statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf)
{
return my_syscall5(__NR_statx, fd, path, flags, mask, buf);
}
static __attribute__((unused))
int statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf)
{
int ret = sys_statx(fd, path, flags, mask, buf);
if (ret < 0) {
SET_ERRNO(-ret);
ret = -1;
}
return ret;
}
#endif
/* /*
* int stat(const char *path, struct stat *buf); * int stat(const char *path, struct stat *buf);
* Warning: the struct stat's layout is arch-dependent. * Warning: the struct stat's layout is arch-dependent.
*/ */
#if defined(__NR_statx) && !defined(__NR_newfstatat) && !defined(__NR_stat)
/*
* Maybe we can just use statx() when available for all architectures?
*/
static __attribute__((unused))
int sys_stat(const char *path, struct stat *buf)
{
struct statx statx;
long ret;
ret = sys_statx(AT_FDCWD, path, AT_NO_AUTOMOUNT, STATX_BASIC_STATS, &statx);
buf->st_dev = ((statx.stx_dev_minor & 0xff)
| (statx.stx_dev_major << 8)
| ((statx.stx_dev_minor & ~0xff) << 12));
buf->st_ino = statx.stx_ino;
buf->st_mode = statx.stx_mode;
buf->st_nlink = statx.stx_nlink;
buf->st_uid = statx.stx_uid;
buf->st_gid = statx.stx_gid;
buf->st_rdev = ((statx.stx_rdev_minor & 0xff)
| (statx.stx_rdev_major << 8)
| ((statx.stx_rdev_minor & ~0xff) << 12));
buf->st_size = statx.stx_size;
buf->st_blksize = statx.stx_blksize;
buf->st_blocks = statx.stx_blocks;
buf->st_atime = statx.stx_atime.tv_sec;
buf->st_mtime = statx.stx_mtime.tv_sec;
buf->st_ctime = statx.stx_ctime.tv_sec;
return ret;
}
#else
static __attribute__((unused)) static __attribute__((unused))
int sys_stat(const char *path, struct stat *buf) int sys_stat(const char *path, struct stat *buf)
{ {
...@@ -1083,6 +1180,7 @@ int sys_stat(const char *path, struct stat *buf) ...@@ -1083,6 +1180,7 @@ int sys_stat(const char *path, struct stat *buf)
buf->st_ctime = stat.st_ctime; buf->st_ctime = stat.st_ctime;
return ret; return ret;
} }
#endif
static __attribute__((unused)) static __attribute__((unused))
int stat(const char *path, struct stat *buf) int stat(const char *path, struct stat *buf)
......
...@@ -9,6 +9,7 @@ ...@@ -9,6 +9,7 @@
#include "std.h" #include "std.h"
#include <linux/time.h> #include <linux/time.h>
#include <linux/stat.h>
/* Only the generic macros and types may be defined here. The arch-specific /* Only the generic macros and types may be defined here. The arch-specific
...@@ -16,7 +17,11 @@ ...@@ -16,7 +17,11 @@
* the layout of sys_stat_struct must not be defined here. * the layout of sys_stat_struct must not be defined here.
*/ */
/* stat flags (WARNING, octal here) */ /* stat flags (WARNING, octal here). We need to check for an existing
* definition because linux/stat.h may omit to define those if it finds
* that any glibc header was already included.
*/
#if !defined(S_IFMT)
#define S_IFDIR 0040000 #define S_IFDIR 0040000
#define S_IFCHR 0020000 #define S_IFCHR 0020000
#define S_IFBLK 0060000 #define S_IFBLK 0060000
...@@ -34,6 +39,22 @@ ...@@ -34,6 +39,22 @@
#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK) #define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)
#define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK) #define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK)
#define S_IRWXU 00700
#define S_IRUSR 00400
#define S_IWUSR 00200
#define S_IXUSR 00100
#define S_IRWXG 00070
#define S_IRGRP 00040
#define S_IWGRP 00020
#define S_IXGRP 00010
#define S_IRWXO 00007
#define S_IROTH 00004
#define S_IWOTH 00002
#define S_IXOTH 00001
#endif
/* dirent types */ /* dirent types */
#define DT_UNKNOWN 0x0 #define DT_UNKNOWN 0x0
#define DT_FIFO 0x1 #define DT_FIFO 0x1
...@@ -60,11 +81,6 @@ ...@@ -60,11 +81,6 @@
#define MAXPATHLEN (PATH_MAX) #define MAXPATHLEN (PATH_MAX)
#endif #endif
/* Special FD used by all the *at functions */
#ifndef AT_FDCWD
#define AT_FDCWD (-100)
#endif
/* whence values for lseek() */ /* whence values for lseek() */
#define SEEK_SET 0 #define SEEK_SET 0
#define SEEK_CUR 1 #define SEEK_CUR 1
...@@ -81,6 +97,8 @@ ...@@ -81,6 +97,8 @@
/* Macros used on waitpid()'s return status */ /* Macros used on waitpid()'s return status */
#define WEXITSTATUS(status) (((status) & 0xff00) >> 8) #define WEXITSTATUS(status) (((status) & 0xff00) >> 8)
#define WIFEXITED(status) (((status) & 0x7f) == 0) #define WIFEXITED(status) (((status) & 0x7f) == 0)
#define WTERMSIG(status) ((status) & 0x7f)
#define WIFSIGNALED(status) ((status) - 1 < 0xff)
/* waitpid() flags */ /* waitpid() flags */
#define WNOHANG 1 #define WNOHANG 1
......
...@@ -13,6 +13,11 @@ ...@@ -13,6 +13,11 @@
#include "sys.h" #include "sys.h"
#define STDIN_FILENO 0
#define STDOUT_FILENO 1
#define STDERR_FILENO 2
static __attribute__((unused)) static __attribute__((unused))
int msleep(unsigned int msecs) int msleep(unsigned int msecs)
{ {
......
# SPDX-License-Identifier: GPL-2.0 # SPDX-License-Identifier: GPL-2.0
# Makefile for nolibc tests # Makefile for nolibc tests
include ../../../scripts/Makefile.include include ../../../scripts/Makefile.include
# We need this for the "cc-option" macro.
include ../../../build/Build.include
# we're in ".../tools/testing/selftests/nolibc" # we're in ".../tools/testing/selftests/nolibc"
ifeq ($(srctree),) ifeq ($(srctree),)
...@@ -13,52 +15,56 @@ ARCH = $(SUBARCH) ...@@ -13,52 +15,56 @@ ARCH = $(SUBARCH)
endif endif
# kernel image names by architecture # kernel image names by architecture
IMAGE_i386 = arch/x86/boot/bzImage IMAGE_i386 = arch/x86/boot/bzImage
IMAGE_x86_64 = arch/x86/boot/bzImage IMAGE_x86_64 = arch/x86/boot/bzImage
IMAGE_x86 = arch/x86/boot/bzImage IMAGE_x86 = arch/x86/boot/bzImage
IMAGE_arm64 = arch/arm64/boot/Image IMAGE_arm64 = arch/arm64/boot/Image
IMAGE_arm = arch/arm/boot/zImage IMAGE_arm = arch/arm/boot/zImage
IMAGE_mips = vmlinuz IMAGE_mips = vmlinuz
IMAGE_riscv = arch/riscv/boot/Image IMAGE_riscv = arch/riscv/boot/Image
IMAGE_s390 = arch/s390/boot/bzImage IMAGE_s390 = arch/s390/boot/bzImage
IMAGE = $(IMAGE_$(ARCH)) IMAGE_loongarch = arch/loongarch/boot/vmlinuz.efi
IMAGE_NAME = $(notdir $(IMAGE)) IMAGE = $(IMAGE_$(ARCH))
IMAGE_NAME = $(notdir $(IMAGE))
# default kernel configurations that appear to be usable # default kernel configurations that appear to be usable
DEFCONFIG_i386 = defconfig DEFCONFIG_i386 = defconfig
DEFCONFIG_x86_64 = defconfig DEFCONFIG_x86_64 = defconfig
DEFCONFIG_x86 = defconfig DEFCONFIG_x86 = defconfig
DEFCONFIG_arm64 = defconfig DEFCONFIG_arm64 = defconfig
DEFCONFIG_arm = multi_v7_defconfig DEFCONFIG_arm = multi_v7_defconfig
DEFCONFIG_mips = malta_defconfig DEFCONFIG_mips = malta_defconfig
DEFCONFIG_riscv = defconfig DEFCONFIG_riscv = defconfig
DEFCONFIG_s390 = defconfig DEFCONFIG_s390 = defconfig
DEFCONFIG = $(DEFCONFIG_$(ARCH)) DEFCONFIG_loongarch = defconfig
DEFCONFIG = $(DEFCONFIG_$(ARCH))
# optional tests to run (default = all) # optional tests to run (default = all)
TEST = TEST =
# QEMU_ARCH: arch names used by qemu # QEMU_ARCH: arch names used by qemu
QEMU_ARCH_i386 = i386 QEMU_ARCH_i386 = i386
QEMU_ARCH_x86_64 = x86_64 QEMU_ARCH_x86_64 = x86_64
QEMU_ARCH_x86 = x86_64 QEMU_ARCH_x86 = x86_64
QEMU_ARCH_arm64 = aarch64 QEMU_ARCH_arm64 = aarch64
QEMU_ARCH_arm = arm QEMU_ARCH_arm = arm
QEMU_ARCH_mips = mipsel # works with malta_defconfig QEMU_ARCH_mips = mipsel # works with malta_defconfig
QEMU_ARCH_riscv = riscv64 QEMU_ARCH_riscv = riscv64
QEMU_ARCH_s390 = s390x QEMU_ARCH_s390 = s390x
QEMU_ARCH = $(QEMU_ARCH_$(ARCH)) QEMU_ARCH_loongarch = loongarch64
QEMU_ARCH = $(QEMU_ARCH_$(ARCH))
# QEMU_ARGS : some arch-specific args to pass to qemu # QEMU_ARGS : some arch-specific args to pass to qemu
QEMU_ARGS_i386 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" QEMU_ARGS_i386 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_x86_64 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" QEMU_ARGS_x86_64 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_x86 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)" QEMU_ARGS_x86 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_arm64 = -M virt -cpu cortex-a53 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" QEMU_ARGS_arm64 = -M virt -cpu cortex-a53 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_arm = -M virt -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" QEMU_ARGS_arm = -M virt -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_mips = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" QEMU_ARGS_mips = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_riscv = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" QEMU_ARGS_riscv = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_s390 = -M s390-ccw-virtio -m 1G -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" QEMU_ARGS_s390 = -M s390-ccw-virtio -m 1G -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS = $(QEMU_ARGS_$(ARCH)) QEMU_ARGS_loongarch = -M virt -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS = $(QEMU_ARGS_$(ARCH))
# OUTPUT is only set when run from the main makefile, otherwise # OUTPUT is only set when run from the main makefile, otherwise
# it defaults to this nolibc directory. # it defaults to this nolibc directory.
...@@ -70,8 +76,16 @@ else ...@@ -70,8 +76,16 @@ else
Q=@ Q=@
endif endif
CFLAGS_STACKPROTECTOR = -DNOLIBC_STACKPROTECTOR \
$(call cc-option,-mstack-protector-guard=global) \
$(call cc-option,-fstack-protector-all)
CFLAGS_STKP_i386 = $(CFLAGS_STACKPROTECTOR)
CFLAGS_STKP_x86_64 = $(CFLAGS_STACKPROTECTOR)
CFLAGS_STKP_x86 = $(CFLAGS_STACKPROTECTOR)
CFLAGS_s390 = -m64 CFLAGS_s390 = -m64
CFLAGS ?= -Os -fno-ident -fno-asynchronous-unwind-tables $(CFLAGS_$(ARCH)) CFLAGS ?= -Os -fno-ident -fno-asynchronous-unwind-tables \
$(call cc-option,-fno-stack-protector) \
$(CFLAGS_STKP_$(ARCH)) $(CFLAGS_$(ARCH))
LDFLAGS := -s LDFLAGS := -s
help: help:
......
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