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Commit 7bee50d8 authored by David Mosberger's avatar David Mosberger
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ia64: Split ia32-only definitions into separate ia32int.h header file. 

      This avoids polluting ia64 code with definitions that are correct for
      ia32 only (for example, the ELF-related definitions would otherwise
      collide with ia64 ELF definitions).
parent 72006112
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Showing with 503 additions and 475 deletions
arch/ia64/ia32/binfmt_elf32.c
View file @ 7bee50d8
...@@ -15,7 +15,8 @@ ...@@ -15,7 +15,8 @@
#include <asm/param.h> #include <asm/param.h>
#include <asm/signal.h> #include <asm/signal.h>
#include <asm/ia32.h>
#include "ia32priv.h"
#define CONFIG_BINFMT_ELF32 #define CONFIG_BINFMT_ELF32
......
arch/ia64/ia32/ia32_ioctl.c
View file @ 7bee50d8
...@@ -13,7 +13,7 @@ ...@@ -13,7 +13,7 @@
#include <linux/signal.h> /* argh, msdos_fs.h isn't self-contained... */ #include <linux/signal.h> /* argh, msdos_fs.h isn't self-contained... */
#include <linux/compat.h> #include <linux/compat.h>
#include <asm/ia32.h> #include "ia32priv.h"
#include <linux/config.h> #include <linux/config.h>
#include <linux/kernel.h> #include <linux/kernel.h>
......
arch/ia64/ia32/ia32_ldt.c
View file @ 7bee50d8
...@@ -14,7 +14,8 @@ ...@@ -14,7 +14,8 @@
#include <linux/vmalloc.h> #include <linux/vmalloc.h>
#include <asm/uaccess.h> #include <asm/uaccess.h>
#include <asm/ia32.h>
#include "ia32priv.h"
#define P(p) ((void *) (unsigned long) (p)) #define P(p) ((void *) (unsigned long) (p))
......
arch/ia64/ia32/ia32_signal.c
View file @ 7bee50d8
...@@ -28,7 +28,8 @@ ...@@ -28,7 +28,8 @@
#include <asm/rse.h> #include <asm/rse.h>
#include <asm/sigcontext.h> #include <asm/sigcontext.h>
#include <asm/segment.h> #include <asm/segment.h>
#include <asm/ia32.h>
#include "ia32priv.h"
#include "../kernel/sigframe.h" #include "../kernel/sigframe.h"
......
arch/ia64/ia32/ia32_support.c
View file @ 7bee50d8
...@@ -22,7 +22,8 @@ ...@@ -22,7 +22,8 @@
#include <asm/pgtable.h> #include <asm/pgtable.h>
#include <asm/system.h> #include <asm/system.h>
#include <asm/processor.h> #include <asm/processor.h>
#include <asm/ia32.h>
#include "ia32priv.h"
extern void die_if_kernel (char *str, struct pt_regs *regs, long err); extern void die_if_kernel (char *str, struct pt_regs *regs, long err);
...@@ -173,6 +174,13 @@ ia32_bad_interrupt (unsigned long int_num, struct pt_regs *regs) ...@@ -173,6 +174,13 @@ ia32_bad_interrupt (unsigned long int_num, struct pt_regs *regs)
force_sig_info(SIGTRAP, &siginfo, current); force_sig_info(SIGTRAP, &siginfo, current);
} }
void
ia32_cpu_init (void)
{
/* initialize global ia32 state - CR0 and CR4 */
asm volatile ("mov ar.cflg = %0" :: "r" (((ulong) IA32_CR4 << 32) | IA32_CR0));
}
static int __init static int __init
ia32_init (void) ia32_init (void)
{ {
......
arch/ia64/ia32/ia32_traps.c
View file @ 7bee50d8
...@@ -12,7 +12,8 @@ ...@@ -12,7 +12,8 @@
#include <linux/kernel.h> #include <linux/kernel.h>
#include <linux/sched.h> #include <linux/sched.h>
#include <asm/ia32.h> #include "ia32priv.h"
#include <asm/ptrace.h> #include <asm/ptrace.h>
int int
......
arch/ia64/ia32/ia32priv.h 0 → 100644
View file @ 7bee50d8
#ifndef _ASM_IA64_IA32_H
#define _ASM_IA64_IA32_H
#include <linux/config.h>
#include <asm/ia32.h>
#ifdef CONFIG_IA32_SUPPORT
#include <linux/binfmts.h>
#include <linux/compat.h>
/*
* 32 bit structures for IA32 support.
*/
#define IA32_PAGE_SHIFT 12 /* 4KB pages */
#define IA32_PAGE_SIZE (1UL << IA32_PAGE_SHIFT)
#define IA32_PAGE_MASK (~(IA32_PAGE_SIZE - 1))
#define IA32_PAGE_ALIGN(addr) (((addr) + IA32_PAGE_SIZE - 1) & IA32_PAGE_MASK)
#define IA32_CLOCKS_PER_SEC 100 /* Cast in stone for IA32 Linux */
/* sigcontext.h */
/*
* As documented in the iBCS2 standard..
*
* The first part of "struct _fpstate" is just the
* normal i387 hardware setup, the extra "status"
* word is used to save the coprocessor status word
* before entering the handler.
*/
struct _fpreg_ia32 {
unsigned short significand[4];
unsigned short exponent;
};
struct _fpxreg_ia32 {
unsigned short significand[4];
unsigned short exponent;
unsigned short padding[3];
};
struct _xmmreg_ia32 {
unsigned int element[4];
};
struct _fpstate_ia32 {
unsigned int cw,
sw,
tag,
ipoff,
cssel,
dataoff,
datasel;
struct _fpreg_ia32 _st[8];
unsigned short status;
unsigned short magic; /* 0xffff = regular FPU data only */
/* FXSR FPU environment */
unsigned int _fxsr_env[6]; /* FXSR FPU env is ignored */
unsigned int mxcsr;
unsigned int reserved;
struct _fpxreg_ia32 _fxsr_st[8]; /* FXSR FPU reg data is ignored */
struct _xmmreg_ia32 _xmm[8];
unsigned int padding[56];
};
struct sigcontext_ia32 {
unsigned short gs, __gsh;
unsigned short fs, __fsh;
unsigned short es, __esh;
unsigned short ds, __dsh;
unsigned int edi;
unsigned int esi;
unsigned int ebp;
unsigned int esp;
unsigned int ebx;
unsigned int edx;
unsigned int ecx;
unsigned int eax;
unsigned int trapno;
unsigned int err;
unsigned int eip;
unsigned short cs, __csh;
unsigned int eflags;
unsigned int esp_at_signal;
unsigned short ss, __ssh;
unsigned int fpstate; /* really (struct _fpstate_ia32 *) */
unsigned int oldmask;
unsigned int cr2;
};
/* user.h */
/*
* IA32 (Pentium III/4) FXSR, SSE support
*
* Provide support for the GDB 5.0+ PTRACE_{GET|SET}FPXREGS requests for
* interacting with the FXSR-format floating point environment. Floating
* point data can be accessed in the regular format in the usual manner,
* and both the standard and SIMD floating point data can be accessed via
* the new ptrace requests. In either case, changes to the FPU environment
* will be reflected in the task's state as expected.
*/
struct ia32_user_i387_struct {
int cwd;
int swd;
int twd;
int fip;
int fcs;
int foo;
int fos;
/* 8*10 bytes for each FP-reg = 80 bytes */
struct _fpreg_ia32 st_space[8];
};
struct ia32_user_fxsr_struct {
unsigned short cwd;
unsigned short swd;
unsigned short twd;
unsigned short fop;
int fip;
int fcs;
int foo;
int fos;
int mxcsr;
int reserved;
int st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */
int xmm_space[32]; /* 8*16 bytes for each XMM-reg = 128 bytes */
int padding[56];
};
/* signal.h */
#define IA32_SET_SA_HANDLER(ka,handler,restorer) \
((ka)->sa.sa_handler = (__sighandler_t) \
(((unsigned long)(restorer) << 32) \
| ((handler) & 0xffffffff)))
#define IA32_SA_HANDLER(ka) ((unsigned long) (ka)->sa.sa_handler & 0xffffffff)
#define IA32_SA_RESTORER(ka) ((unsigned long) (ka)->sa.sa_handler >> 32)
struct sigaction32 {
unsigned int sa_handler; /* Really a pointer, but need to deal with 32 bits */
unsigned int sa_flags;
unsigned int sa_restorer; /* Another 32 bit pointer */
compat_sigset_t sa_mask; /* A 32 bit mask */
};
struct old_sigaction32 {
unsigned int sa_handler; /* Really a pointer, but need to deal
with 32 bits */
compat_old_sigset_t sa_mask; /* A 32 bit mask */
unsigned int sa_flags;
unsigned int sa_restorer; /* Another 32 bit pointer */
};
typedef struct sigaltstack_ia32 {
unsigned int ss_sp;
int ss_flags;
unsigned int ss_size;
} stack_ia32_t;
struct ucontext_ia32 {
unsigned int uc_flags;
unsigned int uc_link;
stack_ia32_t uc_stack;
struct sigcontext_ia32 uc_mcontext;
sigset_t uc_sigmask; /* mask last for extensibility */
};
struct stat64 {
unsigned short st_dev;
unsigned char __pad0[10];
unsigned int __st_ino;
unsigned int st_mode;
unsigned int st_nlink;
unsigned int st_uid;
unsigned int st_gid;
unsigned short st_rdev;
unsigned char __pad3[10];
unsigned int st_size_lo;
unsigned int st_size_hi;
unsigned int st_blksize;
unsigned int st_blocks; /* Number 512-byte blocks allocated. */
unsigned int __pad4; /* future possible st_blocks high bits */
unsigned int st_atime;
unsigned int st_atime_nsec;
unsigned int st_mtime;
unsigned int st_mtime_nsec;
unsigned int st_ctime;
unsigned int st_ctime_nsec;
unsigned int st_ino_lo;
unsigned int st_ino_hi;
};
typedef union sigval32 {
int sival_int;
unsigned int sival_ptr;
} sigval_t32;
typedef struct siginfo32 {
int si_signo;
int si_errno;
int si_code;
union {
int _pad[((128/sizeof(int)) - 3)];
/* kill() */
struct {
unsigned int _pid; /* sender's pid */
unsigned int _uid; /* sender's uid */
} _kill;
/* POSIX.1b timers */
struct {
timer_t _tid; /* timer id */
int _overrun; /* overrun count */
char _pad[sizeof(unsigned int) - sizeof(int)];
sigval_t32 _sigval; /* same as below */
int _sys_private; /* not to be passed to user */
} _timer;
/* POSIX.1b signals */
struct {
unsigned int _pid; /* sender's pid */
unsigned int _uid; /* sender's uid */
sigval_t32 _sigval;
} _rt;
/* SIGCHLD */
struct {
unsigned int _pid; /* which child */
unsigned int _uid; /* sender's uid */
int _status; /* exit code */
compat_clock_t _utime;
compat_clock_t _stime;
} _sigchld;
/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
struct {
unsigned int _addr; /* faulting insn/memory ref. */
} _sigfault;
/* SIGPOLL */
struct {
int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
int _fd;
} _sigpoll;
} _sifields;
} siginfo_t32;
struct linux32_dirent {
u32 d_ino;
u32 d_off;
u16 d_reclen;
char d_name[256];
};
struct old_linux32_dirent {
u32 d_ino;
u32 d_offset;
u16 d_namlen;
char d_name[1];
};
/*
* IA-32 ELF specific definitions for IA-64.
*/
#define _ASM_IA64_ELF_H /* Don't include elf.h */
#include <linux/sched.h>
#include <asm/processor.h>
/*
* This is used to ensure we don't load something for the wrong architecture.
*/
#define elf_check_arch(x) ((x)->e_machine == EM_386)
/*
* These are used to set parameters in the core dumps.
*/
#define ELF_CLASS ELFCLASS32
#define ELF_DATA ELFDATA2LSB
#define ELF_ARCH EM_386
#define IA32_PAGE_OFFSET 0xc0000000
#define IA32_STACK_TOP IA32_PAGE_OFFSET
/*
* The system segments (GDT, TSS, LDT) have to be mapped below 4GB so the IA-32 engine can
* access them.
*/
#define IA32_GDT_OFFSET (IA32_PAGE_OFFSET)
#define IA32_TSS_OFFSET (IA32_PAGE_OFFSET + PAGE_SIZE)
#define IA32_LDT_OFFSET (IA32_PAGE_OFFSET + 2*PAGE_SIZE)
#define USE_ELF_CORE_DUMP
#define ELF_EXEC_PAGESIZE IA32_PAGE_SIZE
/*
* This is the location that an ET_DYN program is loaded if exec'ed.
* Typical use of this is to invoke "./ld.so someprog" to test out a
* new version of the loader. We need to make sure that it is out of
* the way of the program that it will "exec", and that there is
* sufficient room for the brk.
*/
#define ELF_ET_DYN_BASE (IA32_PAGE_OFFSET/3 + 0x1000000)
void ia64_elf32_init(struct pt_regs *regs);
#define ELF_PLAT_INIT(_r, load_addr) ia64_elf32_init(_r)
#define elf_addr_t u32
/* ELF register definitions. This is needed for core dump support. */
#define ELF_NGREG 128 /* XXX fix me */
#define ELF_NFPREG 128 /* XXX fix me */
typedef unsigned long elf_greg_t;
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
typedef struct {
unsigned long w0;
unsigned long w1;
} elf_fpreg_t;
typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
/* This macro yields a bitmask that programs can use to figure out
what instruction set this CPU supports. */
#define ELF_HWCAP 0
/* This macro yields a string that ld.so will use to load
implementation specific libraries for optimization. Not terribly
relevant until we have real hardware to play with... */
#define ELF_PLATFORM 0
#ifdef __KERNEL__
# define SET_PERSONALITY(EX,IBCS2) \
(current->personality = (IBCS2) ? PER_SVR4 : PER_LINUX)
#endif
#define IA32_EFLAG 0x200
/*
* IA-32 ELF specific definitions for IA-64.
*/
#define __USER_CS 0x23
#define __USER_DS 0x2B
#define FIRST_TSS_ENTRY 6
#define FIRST_LDT_ENTRY (FIRST_TSS_ENTRY+1)
#define _TSS(n) ((((unsigned long) n)<<4)+(FIRST_TSS_ENTRY<<3))
#define _LDT(n) ((((unsigned long) n)<<4)+(FIRST_LDT_ENTRY<<3))
#define IA32_SEGSEL_RPL (0x3 << 0)
#define IA32_SEGSEL_TI (0x1 << 2)
#define IA32_SEGSEL_INDEX_SHIFT 3
#define IA32_SEG_BASE 16
#define IA32_SEG_TYPE 40
#define IA32_SEG_SYS 44
#define IA32_SEG_DPL 45
#define IA32_SEG_P 47
#define IA32_SEG_HIGH_LIMIT 48
#define IA32_SEG_AVL 52
#define IA32_SEG_DB 54
#define IA32_SEG_G 55
#define IA32_SEG_HIGH_BASE 56
#define IA32_SEG_DESCRIPTOR(base, limit, segtype, nonsysseg, dpl, segpresent, avl, segdb, gran) \
(((limit) & 0xffff) \
| (((unsigned long) (base) & 0xffffff) << IA32_SEG_BASE) \
| ((unsigned long) (segtype) << IA32_SEG_TYPE) \
| ((unsigned long) (nonsysseg) << IA32_SEG_SYS) \
| ((unsigned long) (dpl) << IA32_SEG_DPL) \
| ((unsigned long) (segpresent) << IA32_SEG_P) \
| ((((unsigned long) (limit) >> 16) & 0xf) << IA32_SEG_HIGH_LIMIT) \
| ((unsigned long) (avl) << IA32_SEG_AVL) \
| ((unsigned long) (segdb) << IA32_SEG_DB) \
| ((unsigned long) (gran) << IA32_SEG_G) \
| ((((unsigned long) (base) >> 24) & 0xff) << IA32_SEG_HIGH_BASE))
#define SEG_LIM 32
#define SEG_TYPE 52
#define SEG_SYS 56
#define SEG_DPL 57
#define SEG_P 59
#define SEG_AVL 60
#define SEG_DB 62
#define SEG_G 63
/* Unscramble an IA-32 segment descriptor into the IA-64 format. */
#define IA32_SEG_UNSCRAMBLE(sd) \
( (((sd) >> IA32_SEG_BASE) & 0xffffff) | ((((sd) >> IA32_SEG_HIGH_BASE) & 0xff) << 24) \
| ((((sd) & 0xffff) | ((((sd) >> IA32_SEG_HIGH_LIMIT) & 0xf) << 16)) << SEG_LIM) \
| ((((sd) >> IA32_SEG_TYPE) & 0xf) << SEG_TYPE) \
| ((((sd) >> IA32_SEG_SYS) & 0x1) << SEG_SYS) \
| ((((sd) >> IA32_SEG_DPL) & 0x3) << SEG_DPL) \
| ((((sd) >> IA32_SEG_P) & 0x1) << SEG_P) \
| ((((sd) >> IA32_SEG_AVL) & 0x1) << SEG_AVL) \
| ((((sd) >> IA32_SEG_DB) & 0x1) << SEG_DB) \
| ((((sd) >> IA32_SEG_G) & 0x1) << SEG_G))
#define IA32_IOBASE 0x2000000000000000 /* Virtual address for I/O space */
#define IA32_CR0 0x80000001 /* Enable PG and PE bits */
#define IA32_CR4 0x600 /* MMXEX and FXSR on */
/*
* IA32 floating point control registers starting values
*/
#define IA32_FSR_DEFAULT 0x55550000 /* set all tag bits */
#define IA32_FCR_DEFAULT 0x17800000037fUL /* extended precision, all masks */
#define IA32_PTRACE_GETREGS 12
#define IA32_PTRACE_SETREGS 13
#define IA32_PTRACE_GETFPREGS 14
#define IA32_PTRACE_SETFPREGS 15
#define IA32_PTRACE_GETFPXREGS 18
#define IA32_PTRACE_SETFPXREGS 19
#define ia32_start_thread(regs,new_ip,new_sp) do { \
set_fs(USER_DS); \
ia64_psr(regs)->cpl = 3; /* set user mode */ \
ia64_psr(regs)->ri = 0; /* clear return slot number */ \
ia64_psr(regs)->is = 1; /* IA-32 instruction set */ \
regs->cr_iip = new_ip; \
regs->ar_rsc = 0xc; /* enforced lazy mode, priv. level 3 */ \
regs->ar_rnat = 0; \
regs->loadrs = 0; \
regs->r12 = new_sp; \
} while (0)
/*
* Local Descriptor Table (LDT) related declarations.
*/
#define IA32_LDT_ENTRIES 8192 /* Maximum number of LDT entries supported. */
#define IA32_LDT_ENTRY_SIZE 8 /* The size of each LDT entry. */
struct ia32_modify_ldt_ldt_s {
unsigned int entry_number;
unsigned int base_addr;
unsigned int limit;
unsigned int seg_32bit:1;
unsigned int contents:2;
unsigned int read_exec_only:1;
unsigned int limit_in_pages:1;
unsigned int seg_not_present:1;
unsigned int useable:1;
};
struct linux_binprm;
extern void ia32_init_addr_space (struct pt_regs *regs);
extern int ia32_setup_arg_pages (struct linux_binprm *bprm);
extern unsigned long ia32_do_mmap (struct file *, unsigned long, unsigned long, int, int, loff_t);
extern void ia32_load_segment_descriptors (struct task_struct *task);
#define ia32f2ia64f(dst,src) \
do { \
register double f6 asm ("f6"); \
asm volatile ("ldfe f6=[%2];; stf.spill [%1]=f6" : "=f"(f6): "r"(dst), "r"(src) : "memory"); \
} while(0)
#define ia64f2ia32f(dst,src) \
do { \
register double f6 asm ("f6"); \
asm volatile ("ldf.fill f6=[%2];; stfe [%1]=f6" : "=f"(f6): "r"(dst), "r"(src) : "memory"); \
} while(0)
#endif /* !CONFIG_IA32_SUPPORT */
#endif /* _ASM_IA64_IA32_H */
arch/ia64/ia32/sys_ia32.c
View file @ 7bee50d8
...@@ -53,7 +53,8 @@ ...@@ -53,7 +53,8 @@
#include <asm/types.h> #include <asm/types.h>
#include <asm/uaccess.h> #include <asm/uaccess.h>
#include <asm/semaphore.h> #include <asm/semaphore.h>
#include <asm/ia32.h>
#include "ia32priv.h"
#include <net/scm.h> #include <net/scm.h>
#include <net/sock.h> #include <net/sock.h>
...@@ -1320,7 +1321,6 @@ static int ...@@ -1320,7 +1321,6 @@ static int
msgctl32 (int first, int second, void *uptr) msgctl32 (int first, int second, void *uptr)
{ {
int err = -EINVAL, err2; int err = -EINVAL, err2;
struct msqid_ds m;
struct msqid64_ds m64; struct msqid64_ds m64;
struct msqid_ds32 *up32 = (struct msqid_ds32 *)uptr; struct msqid_ds32 *up32 = (struct msqid_ds32 *)uptr;
struct msqid64_ds32 *up64 = (struct msqid64_ds32 *)uptr; struct msqid64_ds32 *up64 = (struct msqid64_ds32 *)uptr;
......
arch/ia64/kernel/setup.c
View file @ 7bee50d8
...@@ -818,8 +818,7 @@ cpu_init (void) ...@@ -818,8 +818,7 @@ cpu_init (void)
ia64_mmu_init(ia64_imva(cpu_data)); ia64_mmu_init(ia64_imva(cpu_data));
#ifdef CONFIG_IA32_SUPPORT #ifdef CONFIG_IA32_SUPPORT
/* initialize global ia32 state - CR0 and CR4 */ ia32_cpu_init();
asm volatile ("mov ar.cflg = %0" :: "r" (((ulong) IA32_CR4 << 32) | IA32_CR0));
#endif #endif
/* disable all local interrupt sources: */ /* disable all local interrupt sources: */
......
include/asm-ia64/ia32.h
View file @ 7bee50d8
...@@ -3,479 +3,19 @@ ...@@ -3,479 +3,19 @@
#include <linux/config.h> #include <linux/config.h>
#ifdef CONFIG_IA32_SUPPORT #include <asm/ptrace.h>
#include <asm/signal.h>
#include <linux/binfmts.h>
#include <linux/compat.h>
/*
* 32 bit structures for IA32 support.
*/
#define IA32_PAGE_SHIFT 12 /* 4KB pages */
#define IA32_PAGE_SIZE (1UL << IA32_PAGE_SHIFT)
#define IA32_PAGE_MASK (~(IA32_PAGE_SIZE - 1))
#define IA32_PAGE_ALIGN(addr) (((addr) + IA32_PAGE_SIZE - 1) & IA32_PAGE_MASK)
#define IA32_CLOCKS_PER_SEC 100 /* Cast in stone for IA32 Linux */
/* sigcontext.h */
/*
* As documented in the iBCS2 standard..
*
* The first part of "struct _fpstate" is just the
* normal i387 hardware setup, the extra "status"
* word is used to save the coprocessor status word
* before entering the handler.
*/
struct _fpreg_ia32 {
unsigned short significand[4];
unsigned short exponent;
};
struct _fpxreg_ia32 {
unsigned short significand[4];
unsigned short exponent;
unsigned short padding[3];
};
struct _xmmreg_ia32 {
unsigned int element[4];
};
struct _fpstate_ia32 {
unsigned int cw,
sw,
tag,
ipoff,
cssel,
dataoff,
datasel;
struct _fpreg_ia32 _st[8];
unsigned short status;
unsigned short magic; /* 0xffff = regular FPU data only */
/* FXSR FPU environment */
unsigned int _fxsr_env[6]; /* FXSR FPU env is ignored */
unsigned int mxcsr;
unsigned int reserved;
struct _fpxreg_ia32 _fxsr_st[8]; /* FXSR FPU reg data is ignored */
struct _xmmreg_ia32 _xmm[8];
unsigned int padding[56];
};
struct sigcontext_ia32 {
unsigned short gs, __gsh;
unsigned short fs, __fsh;
unsigned short es, __esh;
unsigned short ds, __dsh;
unsigned int edi;
unsigned int esi;
unsigned int ebp;
unsigned int esp;
unsigned int ebx;
unsigned int edx;
unsigned int ecx;
unsigned int eax;
unsigned int trapno;
unsigned int err;
unsigned int eip;
unsigned short cs, __csh;
unsigned int eflags;
unsigned int esp_at_signal;
unsigned short ss, __ssh;
unsigned int fpstate; /* really (struct _fpstate_ia32 *) */
unsigned int oldmask;
unsigned int cr2;
};
/* user.h */
/*
* IA32 (Pentium III/4) FXSR, SSE support
*
* Provide support for the GDB 5.0+ PTRACE_{GET|SET}FPXREGS requests for
* interacting with the FXSR-format floating point environment. Floating
* point data can be accessed in the regular format in the usual manner,
* and both the standard and SIMD floating point data can be accessed via
* the new ptrace requests. In either case, changes to the FPU environment
* will be reflected in the task's state as expected.
*/
struct ia32_user_i387_struct {
int cwd;
int swd;
int twd;
int fip;
int fcs;
int foo;
int fos;
/* 8*10 bytes for each FP-reg = 80 bytes */
struct _fpreg_ia32 st_space[8];
};
struct ia32_user_fxsr_struct {
unsigned short cwd;
unsigned short swd;
unsigned short twd;
unsigned short fop;
int fip;
int fcs;
int foo;
int fos;
int mxcsr;
int reserved;
int st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */
int xmm_space[32]; /* 8*16 bytes for each XMM-reg = 128 bytes */
int padding[56];
};
/* signal.h */
#define IA32_SET_SA_HANDLER(ka,handler,restorer) \
((ka)->sa.sa_handler = (__sighandler_t) \
(((unsigned long)(restorer) << 32) \
| ((handler) & 0xffffffff)))
#define IA32_SA_HANDLER(ka) ((unsigned long) (ka)->sa.sa_handler & 0xffffffff)
#define IA32_SA_RESTORER(ka) ((unsigned long) (ka)->sa.sa_handler >> 32)
struct sigaction32 {
unsigned int sa_handler; /* Really a pointer, but need to deal with 32 bits */
unsigned int sa_flags;
unsigned int sa_restorer; /* Another 32 bit pointer */
compat_sigset_t sa_mask; /* A 32 bit mask */
};
struct old_sigaction32 {
unsigned int sa_handler; /* Really a pointer, but need to deal
with 32 bits */
compat_old_sigset_t sa_mask; /* A 32 bit mask */
unsigned int sa_flags;
unsigned int sa_restorer; /* Another 32 bit pointer */
};
typedef struct sigaltstack_ia32 {
unsigned int ss_sp;
int ss_flags;
unsigned int ss_size;
} stack_ia32_t;
struct ucontext_ia32 {
unsigned int uc_flags;
unsigned int uc_link;
stack_ia32_t uc_stack;
struct sigcontext_ia32 uc_mcontext;
sigset_t uc_sigmask; /* mask last for extensibility */
};
struct stat64 {
unsigned short st_dev;
unsigned char __pad0[10];
unsigned int __st_ino;
unsigned int st_mode;
unsigned int st_nlink;
unsigned int st_uid;
unsigned int st_gid;
unsigned short st_rdev;
unsigned char __pad3[10];
unsigned int st_size_lo;
unsigned int st_size_hi;
unsigned int st_blksize;
unsigned int st_blocks; /* Number 512-byte blocks allocated. */
unsigned int __pad4; /* future possible st_blocks high bits */
unsigned int st_atime;
unsigned int st_atime_nsec;
unsigned int st_mtime;
unsigned int st_mtime_nsec;
unsigned int st_ctime;
unsigned int st_ctime_nsec;
unsigned int st_ino_lo;
unsigned int st_ino_hi;
};
typedef union sigval32 {
int sival_int;
unsigned int sival_ptr;
} sigval_t32;
typedef struct siginfo32 {
int si_signo;
int si_errno;
int si_code;
union {
int _pad[((128/sizeof(int)) - 3)];
/* kill() */
struct {
unsigned int _pid; /* sender's pid */
unsigned int _uid; /* sender's uid */
} _kill;
/* POSIX.1b timers */
struct {
timer_t _tid; /* timer id */
int _overrun; /* overrun count */
char _pad[sizeof(unsigned int) - sizeof(int)];
sigval_t32 _sigval; /* same as below */
int _sys_private; /* not to be passed to user */
} _timer;
/* POSIX.1b signals */
struct {
unsigned int _pid; /* sender's pid */
unsigned int _uid; /* sender's uid */
sigval_t32 _sigval;
} _rt;
/* SIGCHLD */
struct {
unsigned int _pid; /* which child */
unsigned int _uid; /* sender's uid */
int _status; /* exit code */
compat_clock_t _utime;
compat_clock_t _stime;
} _sigchld;
/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
struct {
unsigned int _addr; /* faulting insn/memory ref. */
} _sigfault;
/* SIGPOLL */
struct {
int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
int _fd;
} _sigpoll;
} _sifields;
} siginfo_t32;
struct linux32_dirent {
u32 d_ino;
u32 d_off;
u16 d_reclen;
char d_name[256];
};
struct old_linux32_dirent {
u32 d_ino;
u32 d_offset;
u16 d_namlen;
char d_name[1];
};
/*
* IA-32 ELF specific definitions for IA-64.
*/
#define _ASM_IA64_ELF_H /* Don't include elf.h */
#include <linux/sched.h>
#include <asm/processor.h>
/*
* This is used to ensure we don't load something for the wrong architecture.
*/
#define elf_check_arch(x) ((x)->e_machine == EM_386)
/*
* These are used to set parameters in the core dumps.
*/
#define ELF_CLASS ELFCLASS32
#define ELF_DATA ELFDATA2LSB
#define ELF_ARCH EM_386
#define IA32_PAGE_OFFSET 0xc0000000 #ifdef CONFIG_IA32_SUPPORT
#define IA32_STACK_TOP IA32_PAGE_OFFSET
/*
* The system segments (GDT, TSS, LDT) have to be mapped below 4GB so the IA-32 engine can
* access them.
*/
#define IA32_GDT_OFFSET (IA32_PAGE_OFFSET)
#define IA32_TSS_OFFSET (IA32_PAGE_OFFSET + PAGE_SIZE)
#define IA32_LDT_OFFSET (IA32_PAGE_OFFSET + 2*PAGE_SIZE)
#define USE_ELF_CORE_DUMP
#define ELF_EXEC_PAGESIZE IA32_PAGE_SIZE
/*
* This is the location that an ET_DYN program is loaded if exec'ed.
* Typical use of this is to invoke "./ld.so someprog" to test out a
* new version of the loader. We need to make sure that it is out of
* the way of the program that it will "exec", and that there is
* sufficient room for the brk.
*/
#define ELF_ET_DYN_BASE (IA32_PAGE_OFFSET/3 + 0x1000000)
void ia64_elf32_init(struct pt_regs *regs);
#define ELF_PLAT_INIT(_r, load_addr) ia64_elf32_init(_r)
#define elf_addr_t u32
/* ELF register definitions. This is needed for core dump support. */
#define ELF_NGREG 128 /* XXX fix me */
#define ELF_NFPREG 128 /* XXX fix me */
typedef unsigned long elf_greg_t;
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
typedef struct {
unsigned long w0;
unsigned long w1;
} elf_fpreg_t;
typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
/* This macro yields a bitmask that programs can use to figure out
what instruction set this CPU supports. */
#define ELF_HWCAP 0
/* This macro yields a string that ld.so will use to load
implementation specific libraries for optimization. Not terribly
relevant until we have real hardware to play with... */
#define ELF_PLATFORM 0
#ifdef __KERNEL__
# define SET_PERSONALITY(EX,IBCS2) \
(current->personality = (IBCS2) ? PER_SVR4 : PER_LINUX)
#endif
#define IA32_EFLAG 0x200
/*
* IA-32 ELF specific definitions for IA-64.
*/
#define __USER_CS 0x23
#define __USER_DS 0x2B
#define FIRST_TSS_ENTRY 6
#define FIRST_LDT_ENTRY (FIRST_TSS_ENTRY+1)
#define _TSS(n) ((((unsigned long) n)<<4)+(FIRST_TSS_ENTRY<<3))
#define _LDT(n) ((((unsigned long) n)<<4)+(FIRST_LDT_ENTRY<<3))
#define IA32_SEGSEL_RPL (0x3 << 0)
#define IA32_SEGSEL_TI (0x1 << 2)
#define IA32_SEGSEL_INDEX_SHIFT 3
#define IA32_SEG_BASE 16
#define IA32_SEG_TYPE 40
#define IA32_SEG_SYS 44
#define IA32_SEG_DPL 45
#define IA32_SEG_P 47
#define IA32_SEG_HIGH_LIMIT 48
#define IA32_SEG_AVL 52
#define IA32_SEG_DB 54
#define IA32_SEG_G 55
#define IA32_SEG_HIGH_BASE 56
#define IA32_SEG_DESCRIPTOR(base, limit, segtype, nonsysseg, dpl, segpresent, avl, segdb, gran) \
(((limit) & 0xffff) \
| (((unsigned long) (base) & 0xffffff) << IA32_SEG_BASE) \
| ((unsigned long) (segtype) << IA32_SEG_TYPE) \
| ((unsigned long) (nonsysseg) << IA32_SEG_SYS) \
| ((unsigned long) (dpl) << IA32_SEG_DPL) \
| ((unsigned long) (segpresent) << IA32_SEG_P) \
| ((((unsigned long) (limit) >> 16) & 0xf) << IA32_SEG_HIGH_LIMIT) \
| ((unsigned long) (avl) << IA32_SEG_AVL) \
| ((unsigned long) (segdb) << IA32_SEG_DB) \
| ((unsigned long) (gran) << IA32_SEG_G) \
| ((((unsigned long) (base) >> 24) & 0xff) << IA32_SEG_HIGH_BASE))
#define SEG_LIM 32
#define SEG_TYPE 52
#define SEG_SYS 56
#define SEG_DPL 57
#define SEG_P 59
#define SEG_AVL 60
#define SEG_DB 62
#define SEG_G 63
/* Unscramble an IA-32 segment descriptor into the IA-64 format. */
#define IA32_SEG_UNSCRAMBLE(sd) \
( (((sd) >> IA32_SEG_BASE) & 0xffffff) | ((((sd) >> IA32_SEG_HIGH_BASE) & 0xff) << 24) \
| ((((sd) & 0xffff) | ((((sd) >> IA32_SEG_HIGH_LIMIT) & 0xf) << 16)) << SEG_LIM) \
| ((((sd) >> IA32_SEG_TYPE) & 0xf) << SEG_TYPE) \
| ((((sd) >> IA32_SEG_SYS) & 0x1) << SEG_SYS) \
| ((((sd) >> IA32_SEG_DPL) & 0x3) << SEG_DPL) \
| ((((sd) >> IA32_SEG_P) & 0x1) << SEG_P) \
| ((((sd) >> IA32_SEG_AVL) & 0x1) << SEG_AVL) \
| ((((sd) >> IA32_SEG_DB) & 0x1) << SEG_DB) \
| ((((sd) >> IA32_SEG_G) & 0x1) << SEG_G))
#define IA32_IOBASE 0x2000000000000000 /* Virtual address for I/O space */
#define IA32_CR0 0x80000001 /* Enable PG and PE bits */
#define IA32_CR4 0x600 /* MMXEX and FXSR on */
/*
* IA32 floating point control registers starting values
*/
#define IA32_FSR_DEFAULT 0x55550000 /* set all tag bits */
#define IA32_FCR_DEFAULT 0x17800000037fUL /* extended precision, all masks */
#define IA32_PTRACE_GETREGS 12
#define IA32_PTRACE_SETREGS 13
#define IA32_PTRACE_GETFPREGS 14
#define IA32_PTRACE_SETFPREGS 15
#define IA32_PTRACE_GETFPXREGS 18
#define IA32_PTRACE_SETFPXREGS 19
#define ia32_start_thread(regs,new_ip,new_sp) do { \
set_fs(USER_DS); \
ia64_psr(regs)->cpl = 3; /* set user mode */ \
ia64_psr(regs)->ri = 0; /* clear return slot number */ \
ia64_psr(regs)->is = 1; /* IA-32 instruction set */ \
regs->cr_iip = new_ip; \
regs->ar_rsc = 0xc; /* enforced lazy mode, priv. level 3 */ \
regs->ar_rnat = 0; \
regs->loadrs = 0; \
regs->r12 = new_sp; \
} while (0)
/*
* Local Descriptor Table (LDT) related declarations.
*/
#define IA32_LDT_ENTRIES 8192 /* Maximum number of LDT entries supported. */
#define IA32_LDT_ENTRY_SIZE 8 /* The size of each LDT entry. */
struct ia32_modify_ldt_ldt_s {
unsigned int entry_number;
unsigned int base_addr;
unsigned int limit;
unsigned int seg_32bit:1;
unsigned int contents:2;
unsigned int read_exec_only:1;
unsigned int limit_in_pages:1;
unsigned int seg_not_present:1;
unsigned int useable:1;
};
struct linux_binprm;
extern void ia32_cpu_init (void);
extern void ia32_gdt_init (void); extern void ia32_gdt_init (void);
extern void ia32_init_addr_space (struct pt_regs *regs);
extern int ia32_setup_arg_pages (struct linux_binprm *bprm);
extern int ia32_exception (struct pt_regs *regs, unsigned long isr); extern int ia32_exception (struct pt_regs *regs, unsigned long isr);
extern int ia32_intercept (struct pt_regs *regs, unsigned long isr); extern int ia32_intercept (struct pt_regs *regs, unsigned long isr);
extern unsigned long ia32_do_mmap (struct file *, unsigned long, unsigned long, int, int, loff_t);
extern void ia32_load_segment_descriptors (struct task_struct *task);
#define ia32f2ia64f(dst,src) \
do { \
register double f6 asm ("f6"); \
asm volatile ("ldfe f6=[%2];; stf.spill [%1]=f6" : "=f"(f6): "r"(dst), "r"(src) : "memory"); \
} while(0)
#define ia64f2ia32f(dst,src) \
do { \
register double f6 asm ("f6"); \
asm volatile ("ldf.fill f6=[%2];; stfe [%1]=f6" : "=f"(f6): "r"(dst), "r"(src) : "memory"); \
} while(0)
#endif /* !CONFIG_IA32_SUPPORT */ #endif /* !CONFIG_IA32_SUPPORT */
/* Declare this uncondiontally, so we don't get warnings for unreachable code. */ /* Declare this unconditionally, so we don't get warnings for unreachable code. */
extern int ia32_setup_frame1 (int sig, struct k_sigaction *ka, siginfo_t *info, extern int ia32_setup_frame1 (int sig, struct k_sigaction *ka, siginfo_t *info,
sigset_t *set, struct pt_regs *regs); sigset_t *set, struct pt_regs *regs);
......
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