提交 4a5222ca 编写于 作者: R Russell King 提交者: Russell King

[ARM] Arrange asm-arm/elf.h so it can be included by assembly

Prepare elf.h so that assembly code can include this file.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
上级 beea494d
#ifndef __ASMARM_ELF_H #ifndef __ASMARM_ELF_H
#define __ASMARM_ELF_H #define __ASMARM_ELF_H
#ifndef __ASSEMBLY__
/* /*
* ELF register definitions.. * ELF register definitions..
*/ */
#include <asm/ptrace.h> #include <asm/ptrace.h>
#include <asm/user.h> #include <asm/user.h>
typedef unsigned long elf_greg_t; typedef unsigned long elf_greg_t;
typedef unsigned long elf_freg_t[3]; typedef unsigned long elf_freg_t[3];
#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
typedef struct user_fp elf_fpregset_t;
#endif
#define EM_ARM 40 #define EM_ARM 40
#define EF_ARM_APCS26 0x08 #define EF_ARM_APCS26 0x08
#define EF_ARM_SOFT_FLOAT 0x200 #define EF_ARM_SOFT_FLOAT 0x200
...@@ -23,11 +28,6 @@ typedef unsigned long elf_freg_t[3]; ...@@ -23,11 +28,6 @@ typedef unsigned long elf_freg_t[3];
#define R_ARM_CALL 28 #define R_ARM_CALL 28
#define R_ARM_JUMP24 29 #define R_ARM_JUMP24 29
#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
typedef struct user_fp elf_fpregset_t;
/* /*
* These are used to set parameters in the core dumps. * These are used to set parameters in the core dumps.
*/ */
...@@ -42,10 +42,50 @@ typedef struct user_fp elf_fpregset_t; ...@@ -42,10 +42,50 @@ typedef struct user_fp elf_fpregset_t;
#ifdef __KERNEL__ #ifdef __KERNEL__
#include <asm/procinfo.h> #include <asm/procinfo.h>
#ifndef __ASSEMBLY__
/*
* This yields a mask that user programs can use to figure out what
* instruction set this cpu supports.
*/
#define ELF_HWCAP (elf_hwcap)
extern unsigned int elf_hwcap;
/*
* This yields a string that ld.so will use to load implementation
* specific libraries for optimization. This is more specific in
* intent than poking at uname or /proc/cpuinfo.
*
* For now we just provide a fairly general string that describes the
* processor family. This could be made more specific later if someone
* implemented optimisations that require it. 26-bit CPUs give you
* "v1l" for ARM2 (no SWP) and "v2l" for anything else (ARM1 isn't
* supported). 32-bit CPUs give you "v3[lb]" for anything based on an
* ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1
* core.
*/
#define ELF_PLATFORM_SIZE 8
#define ELF_PLATFORM (elf_platform)
extern char elf_platform[];
#endif
/* /*
* This is used to ensure we don't load something for the wrong architecture. * This is used to ensure we don't load something for the wrong architecture.
*/ */
#define elf_check_arch(x) ( ((x)->e_machine == EM_ARM) && (ELF_PROC_OK((x))) ) #define elf_check_arch(x) ((x)->e_machine == EM_ARM && ELF_PROC_OK(x))
/*
* 32-bit code is always OK. Some cpus can do 26-bit, some can't.
*/
#define ELF_PROC_OK(x) (ELF_THUMB_OK(x) && ELF_26BIT_OK(x))
#define ELF_THUMB_OK(x) \
((elf_hwcap & HWCAP_THUMB && ((x)->e_entry & 1) == 1) || \
((x)->e_entry & 3) == 0)
#define ELF_26BIT_OK(x) \
((elf_hwcap & HWCAP_26BIT && (x)->e_flags & EF_ARM_APCS26) || \
((x)->e_flags & EF_ARM_APCS26) == 0)
#define USE_ELF_CORE_DUMP #define USE_ELF_CORE_DUMP
#define ELF_EXEC_PAGESIZE 4096 #define ELF_EXEC_PAGESIZE 4096
...@@ -62,40 +102,6 @@ typedef struct user_fp elf_fpregset_t; ...@@ -62,40 +102,6 @@ typedef struct user_fp elf_fpregset_t;
have no such handler. */ have no such handler. */
#define ELF_PLAT_INIT(_r, load_addr) (_r)->ARM_r0 = 0 #define ELF_PLAT_INIT(_r, load_addr) (_r)->ARM_r0 = 0
/* This yields a mask that user programs can use to figure out what
instruction set this cpu supports. */
#define ELF_HWCAP (elf_hwcap)
/* This yields a string that ld.so will use to load implementation
specific libraries for optimization. This is more specific in
intent than poking at uname or /proc/cpuinfo. */
/* For now we just provide a fairly general string that describes the
processor family. This could be made more specific later if someone
implemented optimisations that require it. 26-bit CPUs give you
"v1l" for ARM2 (no SWP) and "v2l" for anything else (ARM1 isn't
supported). 32-bit CPUs give you "v3[lb]" for anything based on an
ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1
core. */
#define ELF_PLATFORM_SIZE 8
extern char elf_platform[];
#define ELF_PLATFORM (elf_platform)
/*
* 32-bit code is always OK. Some cpus can do 26-bit, some can't.
*/
#define ELF_PROC_OK(x) (ELF_THUMB_OK(x) && ELF_26BIT_OK(x))
#define ELF_THUMB_OK(x) \
(( (elf_hwcap & HWCAP_THUMB) && ((x)->e_entry & 1) == 1) || \
((x)->e_entry & 3) == 0)
#define ELF_26BIT_OK(x) \
(( (elf_hwcap & HWCAP_26BIT) && (x)->e_flags & EF_ARM_APCS26) || \
((x)->e_flags & EF_ARM_APCS26) == 0)
#ifndef CONFIG_IWMMXT #ifndef CONFIG_IWMMXT
/* Old NetWinder binaries were compiled in such a way that the iBCS /* Old NetWinder binaries were compiled in such a way that the iBCS
...@@ -104,7 +110,7 @@ extern char elf_platform[]; ...@@ -104,7 +110,7 @@ extern char elf_platform[];
there is no other ELF system currently supported by iBCS. there is no other ELF system currently supported by iBCS.
@@ Could print a warning message to encourage users to upgrade. */ @@ Could print a warning message to encourage users to upgrade. */
#define SET_PERSONALITY(ex,ibcs2) \ #define SET_PERSONALITY(ex,ibcs2) \
set_personality(((ex).e_flags&EF_ARM_APCS26 ?PER_LINUX :PER_LINUX_32BIT)) set_personality(((ex).e_flags & EF_ARM_APCS26 ? PER_LINUX : PER_LINUX_32BIT))
#else #else
......
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