arch/x86/um/asm/elf.h - third_party/linux - Git at Google

 /*
  * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
  * Licensed under the GPL
  */
 #ifndef __UM_ELF_X86_H
 #define __UM_ELF_X86_H

 #include <asm/user.h>
 #include <skas.h>

 #ifdef CONFIG_X86_32

 #define R_386_NONE	0
 #define R_386_32	1
 #define R_386_PC32	2
 #define R_386_GOT32	3
 #define R_386_PLT32	4
 #define R_386_COPY	5
 #define R_386_GLOB_DAT	6
 #define R_386_JMP_SLOT	7
 #define R_386_RELATIVE	8
 #define R_386_GOTOFF	9
 #define R_386_GOTPC	10
 #define R_386_NUM	11

 /*
  * This is used to ensure we don't load something for the wrong architecture.
  */
 #define elf_check_arch(x) \
 	(((x)->e_machine == EM_386) || ((x)->e_machine == EM_486))

 #define ELF_CLASS	ELFCLASS32
 #define ELF_DATA        ELFDATA2LSB
 #define ELF_ARCH        EM_386

 #define ELF_PLAT_INIT(regs, load_addr) do { \
 	PT_REGS_BX(regs) = 0; \
 	PT_REGS_CX(regs) = 0; \
 	PT_REGS_DX(regs) = 0; \
 	PT_REGS_SI(regs) = 0; \
 	PT_REGS_DI(regs) = 0; \
 	PT_REGS_BP(regs) = 0; \
 	PT_REGS_AX(regs) = 0; \
 } while (0)

 /* Shamelessly stolen from include/asm-i386/elf.h */

 #define ELF_CORE_COPY_REGS(pr_reg, regs) do {	\
 	pr_reg[0] = PT_REGS_BX(regs);		\
 	pr_reg[1] = PT_REGS_CX(regs);		\
 	pr_reg[2] = PT_REGS_DX(regs);		\
 	pr_reg[3] = PT_REGS_SI(regs);		\
 	pr_reg[4] = PT_REGS_DI(regs);		\
 	pr_reg[5] = PT_REGS_BP(regs);		\
 	pr_reg[6] = PT_REGS_AX(regs);		\
 	pr_reg[7] = PT_REGS_DS(regs);		\
 	pr_reg[8] = PT_REGS_ES(regs);		\
 	/* fake once used fs and gs selectors? */	\
 	pr_reg[9] = PT_REGS_DS(regs);		\
 	pr_reg[10] = PT_REGS_DS(regs);		\
 	pr_reg[11] = PT_REGS_SYSCALL_NR(regs);	\
 	pr_reg[12] = PT_REGS_IP(regs);		\
 	pr_reg[13] = PT_REGS_CS(regs);		\
 	pr_reg[14] = PT_REGS_EFLAGS(regs);	\
 	pr_reg[15] = PT_REGS_SP(regs);		\
 	pr_reg[16] = PT_REGS_SS(regs);		\
 } while (0);

 extern char * elf_aux_platform;
 #define ELF_PLATFORM (elf_aux_platform)

 extern unsigned long vsyscall_ehdr;
 extern unsigned long vsyscall_end;
 extern unsigned long __kernel_vsyscall;

 /*
  * This is the range that is readable by user mode, and things
  * acting like user mode such as get_user_pages.
  */
 #define FIXADDR_USER_START      vsyscall_ehdr
 #define FIXADDR_USER_END        vsyscall_end


 /*
  * Architecture-neutral AT_ values in 0-17, leave some room
  * for more of them, start the x86-specific ones at 32.
  */
 #define AT_SYSINFO		32
 #define AT_SYSINFO_EHDR		33

 #define ARCH_DLINFO						\
 do {								\
 	if ( vsyscall_ehdr ) {					\
 		NEW_AUX_ENT(AT_SYSINFO,	__kernel_vsyscall);	\
 		NEW_AUX_ENT(AT_SYSINFO_EHDR, vsyscall_ehdr);	\
 	}							\
 } while (0)

 #else

 /* x86-64 relocation types, taken from asm-x86_64/elf.h */
 #define R_X86_64_NONE		0	/* No reloc */
 #define R_X86_64_64		1	/* Direct 64 bit  */
 #define R_X86_64_PC32		2	/* PC relative 32 bit signed */
 #define R_X86_64_GOT32		3	/* 32 bit GOT entry */
 #define R_X86_64_PLT32		4	/* 32 bit PLT address */
 #define R_X86_64_COPY		5	/* Copy symbol at runtime */
 #define R_X86_64_GLOB_DAT	6	/* Create GOT entry */
 #define R_X86_64_JUMP_SLOT	7	/* Create PLT entry */
 #define R_X86_64_RELATIVE	8	/* Adjust by program base */
 #define R_X86_64_GOTPCREL	9	/* 32 bit signed pc relative
 					   offset to GOT */
 #define R_X86_64_32		10	/* Direct 32 bit zero extended */
 #define R_X86_64_32S		11	/* Direct 32 bit sign extended */
 #define R_X86_64_16		12	/* Direct 16 bit zero extended */
 #define R_X86_64_PC16		13	/* 16 bit sign extended pc relative */
 #define R_X86_64_8		14	/* Direct 8 bit sign extended  */
 #define R_X86_64_PC8		15	/* 8 bit sign extended pc relative */

 #define R_X86_64_NUM		16

 /*
  * This is used to ensure we don't load something for the wrong architecture.
  */
 #define elf_check_arch(x) \
 	((x)->e_machine == EM_X86_64)

 #define ELF_CLASS	ELFCLASS64
 #define ELF_DATA        ELFDATA2LSB
 #define ELF_ARCH        EM_X86_64

 #define ELF_PLAT_INIT(regs, load_addr)    do { \
 	PT_REGS_BX(regs) = 0; \
 	PT_REGS_CX(regs) = 0; \
 	PT_REGS_DX(regs) = 0; \
 	PT_REGS_SI(regs) = 0; \
 	PT_REGS_DI(regs) = 0; \
 	PT_REGS_BP(regs) = 0; \
 	PT_REGS_AX(regs) = 0; \
 	PT_REGS_R8(regs) = 0; \
 	PT_REGS_R9(regs) = 0; \
 	PT_REGS_R10(regs) = 0; \
 	PT_REGS_R11(regs) = 0; \
 	PT_REGS_R12(regs) = 0; \
 	PT_REGS_R13(regs) = 0; \
 	PT_REGS_R14(regs) = 0; \
 	PT_REGS_R15(regs) = 0; \
 } while (0)

 #define ELF_CORE_COPY_REGS(pr_reg, _regs)		\
 	(pr_reg)[0] = (_regs)->regs.gp[0];			\
 	(pr_reg)[1] = (_regs)->regs.gp[1];			\
 	(pr_reg)[2] = (_regs)->regs.gp[2];			\
 	(pr_reg)[3] = (_regs)->regs.gp[3];			\
 	(pr_reg)[4] = (_regs)->regs.gp[4];			\
 	(pr_reg)[5] = (_regs)->regs.gp[5];			\
 	(pr_reg)[6] = (_regs)->regs.gp[6];			\
 	(pr_reg)[7] = (_regs)->regs.gp[7];			\
 	(pr_reg)[8] = (_regs)->regs.gp[8];			\
 	(pr_reg)[9] = (_regs)->regs.gp[9];			\
 	(pr_reg)[10] = (_regs)->regs.gp[10];			\
 	(pr_reg)[11] = (_regs)->regs.gp[11];			\
 	(pr_reg)[12] = (_regs)->regs.gp[12];			\
 	(pr_reg)[13] = (_regs)->regs.gp[13];			\
 	(pr_reg)[14] = (_regs)->regs.gp[14];			\
 	(pr_reg)[15] = (_regs)->regs.gp[15];			\
 	(pr_reg)[16] = (_regs)->regs.gp[16];			\
 	(pr_reg)[17] = (_regs)->regs.gp[17];			\
 	(pr_reg)[18] = (_regs)->regs.gp[18];			\
 	(pr_reg)[19] = (_regs)->regs.gp[19];			\
 	(pr_reg)[20] = (_regs)->regs.gp[20];			\
 	(pr_reg)[21] = current->thread.arch.fs;			\
 	(pr_reg)[22] = 0;					\
 	(pr_reg)[23] = 0;					\
 	(pr_reg)[24] = 0;					\
 	(pr_reg)[25] = 0;					\
 	(pr_reg)[26] = 0;

 #define ELF_PLATFORM "x86_64"

 /* No user-accessible fixmap addresses, i.e. vsyscall */
 #define FIXADDR_USER_START      0
 #define FIXADDR_USER_END        0

 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
 struct linux_binprm;
 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
 	int uses_interp);

 extern unsigned long um_vdso_addr;
 #define AT_SYSINFO_EHDR 33
 #define ARCH_DLINFO	NEW_AUX_ENT(AT_SYSINFO_EHDR, um_vdso_addr)

 #endif

 typedef unsigned long elf_greg_t;

 #define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
 typedef elf_greg_t elf_gregset_t[ELF_NGREG];

 typedef struct user_i387_struct elf_fpregset_t;

 struct task_struct;

 extern int elf_core_copy_fpregs(struct task_struct *t, elf_fpregset_t *fpu);

 #define ELF_CORE_COPY_FPREGS(t, fpu) elf_core_copy_fpregs(t, fpu)

 #define ELF_EXEC_PAGESIZE 4096

 #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)

 extern long elf_aux_hwcap;
 #define ELF_HWCAP (elf_aux_hwcap)

 #define SET_PERSONALITY(ex) do ; while(0)

 #endif
	/*
	* Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
	* Licensed under the GPL
	*/
	#ifndef __UM_ELF_X86_H
	#define __UM_ELF_X86_H

	#include <asm/user.h>
	#include <skas.h>

	#ifdef CONFIG_X86_32

	#define R_386_NONE 0
	#define R_386_32 1
	#define R_386_PC32 2
	#define R_386_GOT32 3
	#define R_386_PLT32 4
	#define R_386_COPY 5
	#define R_386_GLOB_DAT 6
	#define R_386_JMP_SLOT 7
	#define R_386_RELATIVE 8
	#define R_386_GOTOFF 9
	#define R_386_GOTPC 10
	#define R_386_NUM 11

	/*
	* This is used to ensure we don't load something for the wrong architecture.
	*/
	#define elf_check_arch(x) \
	(((x)->e_machine == EM_386) \|\| ((x)->e_machine == EM_486))

	#define ELF_CLASS ELFCLASS32
	#define ELF_DATA ELFDATA2LSB
	#define ELF_ARCH EM_386

	#define ELF_PLAT_INIT(regs, load_addr) do { \
	PT_REGS_BX(regs) = 0; \
	PT_REGS_CX(regs) = 0; \
	PT_REGS_DX(regs) = 0; \
	PT_REGS_SI(regs) = 0; \
	PT_REGS_DI(regs) = 0; \
	PT_REGS_BP(regs) = 0; \
	PT_REGS_AX(regs) = 0; \
	} while (0)

	/* Shamelessly stolen from include/asm-i386/elf.h */

	#define ELF_CORE_COPY_REGS(pr_reg, regs) do { \
	pr_reg[0] = PT_REGS_BX(regs); \
	pr_reg[1] = PT_REGS_CX(regs); \
	pr_reg[2] = PT_REGS_DX(regs); \
	pr_reg[3] = PT_REGS_SI(regs); \
	pr_reg[4] = PT_REGS_DI(regs); \
	pr_reg[5] = PT_REGS_BP(regs); \
	pr_reg[6] = PT_REGS_AX(regs); \
	pr_reg[7] = PT_REGS_DS(regs); \
	pr_reg[8] = PT_REGS_ES(regs); \
	/* fake once used fs and gs selectors? */ \
	pr_reg[9] = PT_REGS_DS(regs); \
	pr_reg[10] = PT_REGS_DS(regs); \
	pr_reg[11] = PT_REGS_SYSCALL_NR(regs); \
	pr_reg[12] = PT_REGS_IP(regs); \
	pr_reg[13] = PT_REGS_CS(regs); \
	pr_reg[14] = PT_REGS_EFLAGS(regs); \
	pr_reg[15] = PT_REGS_SP(regs); \
	pr_reg[16] = PT_REGS_SS(regs); \
	} while (0);

	extern char * elf_aux_platform;
	#define ELF_PLATFORM (elf_aux_platform)

	extern unsigned long vsyscall_ehdr;
	extern unsigned long vsyscall_end;
	extern unsigned long __kernel_vsyscall;

	/*
	* This is the range that is readable by user mode, and things
	* acting like user mode such as get_user_pages.
	*/
	#define FIXADDR_USER_START vsyscall_ehdr
	#define FIXADDR_USER_END vsyscall_end


	/*
	* Architecture-neutral AT_ values in 0-17, leave some room
	* for more of them, start the x86-specific ones at 32.
	*/
	#define AT_SYSINFO 32
	#define AT_SYSINFO_EHDR 33

	#define ARCH_DLINFO \
	do { \
	if ( vsyscall_ehdr ) { \
	NEW_AUX_ENT(AT_SYSINFO, __kernel_vsyscall); \
	NEW_AUX_ENT(AT_SYSINFO_EHDR, vsyscall_ehdr); \
	} \
	} while (0)

	#else

	/* x86-64 relocation types, taken from asm-x86_64/elf.h */
	#define R_X86_64_NONE 0 /* No reloc */
	#define R_X86_64_64 1 /* Direct 64 bit */
	#define R_X86_64_PC32 2 /* PC relative 32 bit signed */
	#define R_X86_64_GOT32 3 /* 32 bit GOT entry */
	#define R_X86_64_PLT32 4 /* 32 bit PLT address */
	#define R_X86_64_COPY 5 /* Copy symbol at runtime */
	#define R_X86_64_GLOB_DAT 6 /* Create GOT entry */
	#define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */
	#define R_X86_64_RELATIVE 8 /* Adjust by program base */
	#define R_X86_64_GOTPCREL 9 /* 32 bit signed pc relative
	offset to GOT */
	#define R_X86_64_32 10 /* Direct 32 bit zero extended */
	#define R_X86_64_32S 11 /* Direct 32 bit sign extended */
	#define R_X86_64_16 12 /* Direct 16 bit zero extended */
	#define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */
	#define R_X86_64_8 14 /* Direct 8 bit sign extended */
	#define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */

	#define R_X86_64_NUM 16

	/*
	* This is used to ensure we don't load something for the wrong architecture.
	*/
	#define elf_check_arch(x) \
	((x)->e_machine == EM_X86_64)

	#define ELF_CLASS ELFCLASS64
	#define ELF_DATA ELFDATA2LSB
	#define ELF_ARCH EM_X86_64

	#define ELF_PLAT_INIT(regs, load_addr) do { \
	PT_REGS_BX(regs) = 0; \
	PT_REGS_CX(regs) = 0; \
	PT_REGS_DX(regs) = 0; \
	PT_REGS_SI(regs) = 0; \
	PT_REGS_DI(regs) = 0; \
	PT_REGS_BP(regs) = 0; \
	PT_REGS_AX(regs) = 0; \
	PT_REGS_R8(regs) = 0; \
	PT_REGS_R9(regs) = 0; \
	PT_REGS_R10(regs) = 0; \
	PT_REGS_R11(regs) = 0; \
	PT_REGS_R12(regs) = 0; \
	PT_REGS_R13(regs) = 0; \
	PT_REGS_R14(regs) = 0; \
	PT_REGS_R15(regs) = 0; \
	} while (0)

	#define ELF_CORE_COPY_REGS(pr_reg, _regs) \
	(pr_reg)[0] = (_regs)->regs.gp[0]; \
	(pr_reg)[1] = (_regs)->regs.gp[1]; \
	(pr_reg)[2] = (_regs)->regs.gp[2]; \
	(pr_reg)[3] = (_regs)->regs.gp[3]; \
	(pr_reg)[4] = (_regs)->regs.gp[4]; \
	(pr_reg)[5] = (_regs)->regs.gp[5]; \
	(pr_reg)[6] = (_regs)->regs.gp[6]; \
	(pr_reg)[7] = (_regs)->regs.gp[7]; \
	(pr_reg)[8] = (_regs)->regs.gp[8]; \
	(pr_reg)[9] = (_regs)->regs.gp[9]; \
	(pr_reg)[10] = (_regs)->regs.gp[10]; \
	(pr_reg)[11] = (_regs)->regs.gp[11]; \
	(pr_reg)[12] = (_regs)->regs.gp[12]; \
	(pr_reg)[13] = (_regs)->regs.gp[13]; \
	(pr_reg)[14] = (_regs)->regs.gp[14]; \
	(pr_reg)[15] = (_regs)->regs.gp[15]; \
	(pr_reg)[16] = (_regs)->regs.gp[16]; \
	(pr_reg)[17] = (_regs)->regs.gp[17]; \
	(pr_reg)[18] = (_regs)->regs.gp[18]; \
	(pr_reg)[19] = (_regs)->regs.gp[19]; \
	(pr_reg)[20] = (_regs)->regs.gp[20]; \
	(pr_reg)[21] = current->thread.arch.fs; \
	(pr_reg)[22] = 0; \
	(pr_reg)[23] = 0; \
	(pr_reg)[24] = 0; \
	(pr_reg)[25] = 0; \
	(pr_reg)[26] = 0;

	#define ELF_PLATFORM "x86_64"

	/* No user-accessible fixmap addresses, i.e. vsyscall */
	#define FIXADDR_USER_START 0
	#define FIXADDR_USER_END 0

	#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
	struct linux_binprm;
	extern int arch_setup_additional_pages(struct linux_binprm *bprm,
	int uses_interp);

	extern unsigned long um_vdso_addr;
	#define AT_SYSINFO_EHDR 33
	#define ARCH_DLINFO NEW_AUX_ENT(AT_SYSINFO_EHDR, um_vdso_addr)

	#endif

	typedef unsigned long elf_greg_t;

	#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
	typedef elf_greg_t elf_gregset_t[ELF_NGREG];

	typedef struct user_i387_struct elf_fpregset_t;

	struct task_struct;

	extern int elf_core_copy_fpregs(struct task_struct t, elf_fpregset_t fpu);

	#define ELF_CORE_COPY_FPREGS(t, fpu) elf_core_copy_fpregs(t, fpu)

	#define ELF_EXEC_PAGESIZE 4096

	#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)

	extern long elf_aux_hwcap;
	#define ELF_HWCAP (elf_aux_hwcap)

	#define SET_PERSONALITY(ex) do ; while(0)

	#endif