arch/hexagon/include/asm/elf.h - arm/linux - Git at Google

 /*
  * ELF definitions for the Hexagon architecture
  *
  * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
  * only version 2 as published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  * 02110-1301, USA.
  */

 #ifndef __ASM_ELF_H
 #define __ASM_ELF_H

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

 /*
  * This should really be in linux/elf-em.h.
  */
 #define EM_HEXAGON	164   /* QUALCOMM Hexagon */

 struct elf32_hdr;

 /*
  * ELF header e_flags defines.
  */

 /*  should have stuff like "CPU type" and maybe "ABI version", etc  */

 /* Hexagon relocations */
   /* V2 */
 #define R_HEXAGON_NONE           0
 #define R_HEXAGON_B22_PCREL      1
 #define R_HEXAGON_B15_PCREL      2
 #define R_HEXAGON_B7_PCREL       3
 #define R_HEXAGON_LO16           4
 #define R_HEXAGON_HI16           5
 #define R_HEXAGON_32             6
 #define R_HEXAGON_16             7
 #define R_HEXAGON_8              8
 #define R_HEXAGON_GPREL16_0      9
 #define R_HEXAGON_GPREL16_1     10
 #define R_HEXAGON_GPREL16_2     11
 #define R_HEXAGON_GPREL16_3     12
 #define R_HEXAGON_HL16          13
   /* V3 */
 #define R_HEXAGON_B13_PCREL     14
   /* V4 */
 #define R_HEXAGON_B9_PCREL      15
   /* V4 (extenders) */
 #define R_HEXAGON_B32_PCREL_X   16
 #define R_HEXAGON_32_6_X        17
   /* V4 (extended) */
 #define R_HEXAGON_B22_PCREL_X   18
 #define R_HEXAGON_B15_PCREL_X   19
 #define R_HEXAGON_B13_PCREL_X   20
 #define R_HEXAGON_B9_PCREL_X    21
 #define R_HEXAGON_B7_PCREL_X    22
 #define R_HEXAGON_16_X          23
 #define R_HEXAGON_12_X          24
 #define R_HEXAGON_11_X          25
 #define R_HEXAGON_10_X          26
 #define R_HEXAGON_9_X           27
 #define R_HEXAGON_8_X           28
 #define R_HEXAGON_7_X           29
 #define R_HEXAGON_6_X           30
   /* V2 PIC */
 #define R_HEXAGON_32_PCREL      31
 #define R_HEXAGON_COPY          32
 #define R_HEXAGON_GLOB_DAT      33
 #define R_HEXAGON_JMP_SLOT      34
 #define R_HEXAGON_RELATIVE      35
 #define R_HEXAGON_PLT_B22_PCREL 36
 #define R_HEXAGON_GOTOFF_LO16   37
 #define R_HEXAGON_GOTOFF_HI16   38
 #define R_HEXAGON_GOTOFF_32     39
 #define R_HEXAGON_GOT_LO16      40
 #define R_HEXAGON_GOT_HI16      41
 #define R_HEXAGON_GOT_32        42
 #define R_HEXAGON_GOT_16        43

 /*
  * ELF register definitions..
  */
 typedef unsigned long elf_greg_t;

 typedef struct user_regs_struct elf_gregset_t;
 #define ELF_NGREG (sizeof(elf_gregset_t)/sizeof(unsigned long))

 /*  Placeholder  */
 typedef unsigned long elf_fpregset_t;

 /*
  * Bypass the whole "regsets" thing for now and use the define.
  */

 #if CONFIG_HEXAGON_ARCH_VERSION >= 4
 #define CS_COPYREGS(DEST,REGS) \
 do {\
 	DEST.cs0 = REGS->cs0;\
 	DEST.cs1 = REGS->cs1;\
 } while (0)
 #else
 #define CS_COPYREGS(DEST,REGS)
 #endif

 #define ELF_CORE_COPY_REGS(DEST, REGS)	\
 do {					\
 	DEST.r0 = REGS->r00;		\
 	DEST.r1 = REGS->r01;		\
 	DEST.r2 = REGS->r02;		\
 	DEST.r3 = REGS->r03;		\
 	DEST.r4 = REGS->r04;		\
 	DEST.r5 = REGS->r05;		\
 	DEST.r6 = REGS->r06;		\
 	DEST.r7 = REGS->r07;		\
 	DEST.r8 = REGS->r08;		\
 	DEST.r9 = REGS->r09;		\
 	DEST.r10 = REGS->r10;		\
 	DEST.r11 = REGS->r11;		\
 	DEST.r12 = REGS->r12;		\
 	DEST.r13 = REGS->r13;		\
 	DEST.r14 = REGS->r14;		\
 	DEST.r15 = REGS->r15;		\
 	DEST.r16 = REGS->r16;		\
 	DEST.r17 = REGS->r17;		\
 	DEST.r18 = REGS->r18;		\
 	DEST.r19 = REGS->r19;		\
 	DEST.r20 = REGS->r20;		\
 	DEST.r21 = REGS->r21;		\
 	DEST.r22 = REGS->r22;		\
 	DEST.r23 = REGS->r23;		\
 	DEST.r24 = REGS->r24;		\
 	DEST.r25 = REGS->r25;		\
 	DEST.r26 = REGS->r26;		\
 	DEST.r27 = REGS->r27;		\
 	DEST.r28 = REGS->r28;		\
 	DEST.r29 = pt_psp(REGS);	\
 	DEST.r30 = REGS->r30;		\
 	DEST.r31 = REGS->r31;		\
 	DEST.sa0 = REGS->sa0;		\
 	DEST.lc0 = REGS->lc0;		\
 	DEST.sa1 = REGS->sa1;		\
 	DEST.lc1 = REGS->lc1;		\
 	DEST.m0 = REGS->m0;		\
 	DEST.m1 = REGS->m1;		\
 	DEST.usr = REGS->usr;		\
 	DEST.p3_0 = REGS->preds;	\
 	DEST.gp = REGS->gp;		\
 	DEST.ugp = REGS->ugp;		\
 	CS_COPYREGS(DEST,REGS);		\
 	DEST.pc = pt_elr(REGS);		\
 	DEST.cause = pt_cause(REGS);	\
 	DEST.badva = pt_badva(REGS);	\
 } while (0);

 /*
  * This is used to ensure we don't load something for the wrong architecture.
  * Checks the machine and ABI type.
  */
 #define elf_check_arch(hdr)	((hdr)->e_machine == EM_HEXAGON)

 /*
  * These are used to set parameters in the core dumps.
  */
 #define ELF_CLASS	ELFCLASS32
 #define ELF_DATA	ELFDATA2LSB
 #define ELF_ARCH	EM_HEXAGON

 #if CONFIG_HEXAGON_ARCH_VERSION == 2
 #define ELF_CORE_EFLAGS 0x1
 #endif

 #if CONFIG_HEXAGON_ARCH_VERSION == 3
 #define ELF_CORE_EFLAGS 0x2
 #endif

 #if CONFIG_HEXAGON_ARCH_VERSION == 4
 #define ELF_CORE_EFLAGS 0x3
 #endif

 /*
  * Some architectures have ld.so set up a pointer to a function
  * to be registered using atexit, to facilitate cleanup.  So that
  * static executables will be well-behaved, we would null the register
  * in question here, in the pt_regs structure passed.  For now,
  * leave it a null macro.
  */
 #define ELF_PLAT_INIT(regs, load_addr) do { } while (0)

 #define USE_ELF_CORE_DUMP
 #define CORE_DUMP_USE_REGSET

 /* Hrm is this going to cause problems for changing PAGE_SIZE?  */
 #define ELF_EXEC_PAGESIZE	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         0x08000000UL

 /*
  * This yields a mask that user programs can use to figure out what
  * instruction set this cpu supports.
  */
 #define ELF_HWCAP	(0)

 /*
  * 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.
  */
 #define ELF_PLATFORM  (NULL)

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


 #endif
	/*
	* ELF definitions for the Hexagon architecture
	*
	* Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 and
	* only version 2 as published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
	* 02110-1301, USA.
	*/

	#ifndef __ASM_ELF_H
	#define __ASM_ELF_H

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

	/*
	* This should really be in linux/elf-em.h.
	*/
	#define EM_HEXAGON 164 /* QUALCOMM Hexagon */

	struct elf32_hdr;

	/*
	* ELF header e_flags defines.
	*/

	/* should have stuff like "CPU type" and maybe "ABI version", etc */

	/* Hexagon relocations */
	/* V2 */
	#define R_HEXAGON_NONE 0
	#define R_HEXAGON_B22_PCREL 1
	#define R_HEXAGON_B15_PCREL 2
	#define R_HEXAGON_B7_PCREL 3
	#define R_HEXAGON_LO16 4
	#define R_HEXAGON_HI16 5
	#define R_HEXAGON_32 6
	#define R_HEXAGON_16 7
	#define R_HEXAGON_8 8
	#define R_HEXAGON_GPREL16_0 9
	#define R_HEXAGON_GPREL16_1 10
	#define R_HEXAGON_GPREL16_2 11
	#define R_HEXAGON_GPREL16_3 12
	#define R_HEXAGON_HL16 13
	/* V3 */
	#define R_HEXAGON_B13_PCREL 14
	/* V4 */
	#define R_HEXAGON_B9_PCREL 15
	/* V4 (extenders) */
	#define R_HEXAGON_B32_PCREL_X 16
	#define R_HEXAGON_32_6_X 17
	/* V4 (extended) */
	#define R_HEXAGON_B22_PCREL_X 18
	#define R_HEXAGON_B15_PCREL_X 19
	#define R_HEXAGON_B13_PCREL_X 20
	#define R_HEXAGON_B9_PCREL_X 21
	#define R_HEXAGON_B7_PCREL_X 22
	#define R_HEXAGON_16_X 23
	#define R_HEXAGON_12_X 24
	#define R_HEXAGON_11_X 25
	#define R_HEXAGON_10_X 26
	#define R_HEXAGON_9_X 27
	#define R_HEXAGON_8_X 28
	#define R_HEXAGON_7_X 29
	#define R_HEXAGON_6_X 30
	/* V2 PIC */
	#define R_HEXAGON_32_PCREL 31
	#define R_HEXAGON_COPY 32
	#define R_HEXAGON_GLOB_DAT 33
	#define R_HEXAGON_JMP_SLOT 34
	#define R_HEXAGON_RELATIVE 35
	#define R_HEXAGON_PLT_B22_PCREL 36
	#define R_HEXAGON_GOTOFF_LO16 37
	#define R_HEXAGON_GOTOFF_HI16 38
	#define R_HEXAGON_GOTOFF_32 39
	#define R_HEXAGON_GOT_LO16 40
	#define R_HEXAGON_GOT_HI16 41
	#define R_HEXAGON_GOT_32 42
	#define R_HEXAGON_GOT_16 43

	/*
	* ELF register definitions..
	*/
	typedef unsigned long elf_greg_t;

	typedef struct user_regs_struct elf_gregset_t;
	#define ELF_NGREG (sizeof(elf_gregset_t)/sizeof(unsigned long))

	/* Placeholder */
	typedef unsigned long elf_fpregset_t;

	/*
	* Bypass the whole "regsets" thing for now and use the define.
	*/

	#if CONFIG_HEXAGON_ARCH_VERSION >= 4
	#define CS_COPYREGS(DEST,REGS) \
	do {\
	DEST.cs0 = REGS->cs0;\
	DEST.cs1 = REGS->cs1;\
	} while (0)
	#else
	#define CS_COPYREGS(DEST,REGS)
	#endif

	#define ELF_CORE_COPY_REGS(DEST, REGS) \
	do { \
	DEST.r0 = REGS->r00; \
	DEST.r1 = REGS->r01; \
	DEST.r2 = REGS->r02; \
	DEST.r3 = REGS->r03; \
	DEST.r4 = REGS->r04; \
	DEST.r5 = REGS->r05; \
	DEST.r6 = REGS->r06; \
	DEST.r7 = REGS->r07; \
	DEST.r8 = REGS->r08; \
	DEST.r9 = REGS->r09; \
	DEST.r10 = REGS->r10; \
	DEST.r11 = REGS->r11; \
	DEST.r12 = REGS->r12; \
	DEST.r13 = REGS->r13; \
	DEST.r14 = REGS->r14; \
	DEST.r15 = REGS->r15; \
	DEST.r16 = REGS->r16; \
	DEST.r17 = REGS->r17; \
	DEST.r18 = REGS->r18; \
	DEST.r19 = REGS->r19; \
	DEST.r20 = REGS->r20; \
	DEST.r21 = REGS->r21; \
	DEST.r22 = REGS->r22; \
	DEST.r23 = REGS->r23; \
	DEST.r24 = REGS->r24; \
	DEST.r25 = REGS->r25; \
	DEST.r26 = REGS->r26; \
	DEST.r27 = REGS->r27; \
	DEST.r28 = REGS->r28; \
	DEST.r29 = pt_psp(REGS); \
	DEST.r30 = REGS->r30; \
	DEST.r31 = REGS->r31; \
	DEST.sa0 = REGS->sa0; \
	DEST.lc0 = REGS->lc0; \
	DEST.sa1 = REGS->sa1; \
	DEST.lc1 = REGS->lc1; \
	DEST.m0 = REGS->m0; \
	DEST.m1 = REGS->m1; \
	DEST.usr = REGS->usr; \
	DEST.p3_0 = REGS->preds; \
	DEST.gp = REGS->gp; \
	DEST.ugp = REGS->ugp; \
	CS_COPYREGS(DEST,REGS); \
	DEST.pc = pt_elr(REGS); \
	DEST.cause = pt_cause(REGS); \
	DEST.badva = pt_badva(REGS); \
	} while (0);

	/*
	* This is used to ensure we don't load something for the wrong architecture.
	* Checks the machine and ABI type.
	*/
	#define elf_check_arch(hdr) ((hdr)->e_machine == EM_HEXAGON)

	/*
	* These are used to set parameters in the core dumps.
	*/
	#define ELF_CLASS ELFCLASS32
	#define ELF_DATA ELFDATA2LSB
	#define ELF_ARCH EM_HEXAGON

	#if CONFIG_HEXAGON_ARCH_VERSION == 2
	#define ELF_CORE_EFLAGS 0x1
	#endif

	#if CONFIG_HEXAGON_ARCH_VERSION == 3
	#define ELF_CORE_EFLAGS 0x2
	#endif

	#if CONFIG_HEXAGON_ARCH_VERSION == 4
	#define ELF_CORE_EFLAGS 0x3
	#endif

	/*
	* Some architectures have ld.so set up a pointer to a function
	* to be registered using atexit, to facilitate cleanup. So that
	* static executables will be well-behaved, we would null the register
	* in question here, in the pt_regs structure passed. For now,
	* leave it a null macro.
	*/
	#define ELF_PLAT_INIT(regs, load_addr) do { } while (0)

	#define USE_ELF_CORE_DUMP
	#define CORE_DUMP_USE_REGSET

	/* Hrm is this going to cause problems for changing PAGE_SIZE? */
	#define ELF_EXEC_PAGESIZE 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 0x08000000UL

	/*
	* This yields a mask that user programs can use to figure out what
	* instruction set this cpu supports.
	*/
	#define ELF_HWCAP (0)

	/*
	* 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.
	*/
	#define ELF_PLATFORM (NULL)

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


	#endif