1#ifndef __ASMARM_ELF_H
  2#define __ASMARM_ELF_H
  3
 
  4#include <asm/hwcap.h>
 
  5
  6/*
  7 * ELF register definitions..
  8 */
  9#include <asm/ptrace.h>
 10#include <asm/user.h>
 11
 12struct task_struct;
 13
 14typedef unsigned long elf_greg_t;
 15typedef unsigned long elf_freg_t[3];
 16
 17#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
 18typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 19
 20typedef struct user_fp elf_fpregset_t;
 21
 22#define EF_ARM_EABI_MASK	0xff000000
 23#define EF_ARM_EABI_UNKNOWN	0x00000000
 24#define EF_ARM_EABI_VER1	0x01000000
 25#define EF_ARM_EABI_VER2	0x02000000
 26#define EF_ARM_EABI_VER3	0x03000000
 27#define EF_ARM_EABI_VER4	0x04000000
 28#define EF_ARM_EABI_VER5	0x05000000
 29
 30#define EF_ARM_BE8		0x00800000	/* ABI 4,5 */
 31#define EF_ARM_LE8		0x00400000	/* ABI 4,5 */
 32#define EF_ARM_MAVERICK_FLOAT	0x00000800	/* ABI 0 */
 33#define EF_ARM_VFP_FLOAT	0x00000400	/* ABI 0 */
 34#define EF_ARM_SOFT_FLOAT	0x00000200	/* ABI 0 */
 35#define EF_ARM_OLD_ABI		0x00000100	/* ABI 0 */
 36#define EF_ARM_NEW_ABI		0x00000080	/* ABI 0 */
 37#define EF_ARM_ALIGN8		0x00000040	/* ABI 0 */
 38#define EF_ARM_PIC		0x00000020	/* ABI 0 */
 39#define EF_ARM_MAPSYMSFIRST	0x00000010	/* ABI 2 */
 40#define EF_ARM_APCS_FLOAT	0x00000010	/* ABI 0, floats in fp regs */
 41#define EF_ARM_DYNSYMSUSESEGIDX	0x00000008	/* ABI 2 */
 42#define EF_ARM_APCS_26		0x00000008	/* ABI 0 */
 43#define EF_ARM_SYMSARESORTED	0x00000004	/* ABI 1,2 */
 44#define EF_ARM_INTERWORK	0x00000004	/* ABI 0 */
 45#define EF_ARM_HASENTRY		0x00000002	/* All */
 46#define EF_ARM_RELEXEC		0x00000001	/* All */
 47
 48#define R_ARM_NONE		0
 49#define R_ARM_PC24		1
 50#define R_ARM_ABS32		2
 
 51#define R_ARM_CALL		28
 52#define R_ARM_JUMP24		29
 
 53#define R_ARM_V4BX		40
 54#define R_ARM_PREL31		42
 55#define R_ARM_MOVW_ABS_NC	43
 56#define R_ARM_MOVT_ABS		44
 
 
 
 
 
 57
 58#define R_ARM_THM_CALL		10
 59#define R_ARM_THM_JUMP24	30
 60#define R_ARM_THM_MOVW_ABS_NC	47
 61#define R_ARM_THM_MOVT_ABS	48
 
 
 62
 63/*
 64 * These are used to set parameters in the core dumps.
 65 */
 66#define ELF_CLASS	ELFCLASS32
 67#ifdef __ARMEB__
 68#define ELF_DATA	ELFDATA2MSB
 69#else
 70#define ELF_DATA	ELFDATA2LSB
 71#endif
 72#define ELF_ARCH	EM_ARM
 73
 74/*
 75 * This yields a string that ld.so will use to load implementation
 76 * specific libraries for optimization.  This is more specific in
 77 * intent than poking at uname or /proc/cpuinfo.
 78 *
 79 * For now we just provide a fairly general string that describes the
 80 * processor family.  This could be made more specific later if someone
 81 * implemented optimisations that require it.  26-bit CPUs give you
 82 * "v1l" for ARM2 (no SWP) and "v2l" for anything else (ARM1 isn't
 83 * supported).  32-bit CPUs give you "v3[lb]" for anything based on an
 84 * ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1
 85 * core.
 86 */
 87#define ELF_PLATFORM_SIZE 8
 88#define ELF_PLATFORM	(elf_platform)
 89
 90extern char elf_platform[];
 91
 92struct elf32_hdr;
 93
 94/*
 95 * This is used to ensure we don't load something for the wrong architecture.
 96 */
 97extern int elf_check_arch(const struct elf32_hdr *);
 98#define elf_check_arch elf_check_arch
 99
100#define vmcore_elf64_check_arch(x) (0)
 
 
 
101
102extern int arm_elf_read_implies_exec(const struct elf32_hdr *, int);
103#define elf_read_implies_exec(ex,stk) arm_elf_read_implies_exec(&(ex), stk)
104
105struct task_struct;
106int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
107#define ELF_CORE_COPY_TASK_REGS dump_task_regs
108
109#define CORE_DUMP_USE_REGSET
110#define ELF_EXEC_PAGESIZE	4096
111
112/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
113   use of this is to invoke "./ld.so someprog" to test out a new version of
114   the loader.  We need to make sure that it is out of the way of the program
115   that it will "exec", and that there is sufficient room for the brk.  */
116
117#define ELF_ET_DYN_BASE	(2 * TASK_SIZE / 3)
118
119/* When the program starts, a1 contains a pointer to a function to be 
120   registered with atexit, as per the SVR4 ABI.  A value of 0 means we 
121   have no such handler.  */
122#define ELF_PLAT_INIT(_r, load_addr)	(_r)->ARM_r0 = 0
123
 
 
 
 
 
 
 
124extern void elf_set_personality(const struct elf32_hdr *);
125#define SET_PERSONALITY(ex)	elf_set_personality(&(ex))
126
127struct mm_struct;
128extern unsigned long arch_randomize_brk(struct mm_struct *mm);
129#define arch_randomize_brk arch_randomize_brk
130
131#ifdef CONFIG_MMU
 
 
 
 
 
 
 
132#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
133struct linux_binprm;
134int arch_setup_additional_pages(struct linux_binprm *, int);
135#endif
136
137#endif

  1/* SPDX-License-Identifier: GPL-2.0 */
  2#ifndef __ASMARM_ELF_H
  3#define __ASMARM_ELF_H
  4
  5#include <asm/auxvec.h>
  6#include <asm/hwcap.h>
  7#include <asm/vdso_datapage.h>
  8
  9/*
 10 * ELF register definitions..
 11 */
 12#include <asm/ptrace.h>
 13#include <asm/user.h>
 14
 15struct task_struct;
 16
 17typedef unsigned long elf_greg_t;
 18typedef unsigned long elf_freg_t[3];
 19
 20#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
 21typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 22
 23typedef struct user_fp elf_fpregset_t;
 24
 25#define EF_ARM_EABI_MASK	0xff000000
 26#define EF_ARM_EABI_UNKNOWN	0x00000000
 27#define EF_ARM_EABI_VER1	0x01000000
 28#define EF_ARM_EABI_VER2	0x02000000
 29#define EF_ARM_EABI_VER3	0x03000000
 30#define EF_ARM_EABI_VER4	0x04000000
 31#define EF_ARM_EABI_VER5	0x05000000
 32
 33#define EF_ARM_BE8		0x00800000	/* ABI 4,5 */
 34#define EF_ARM_LE8		0x00400000	/* ABI 4,5 */
 35#define EF_ARM_MAVERICK_FLOAT	0x00000800	/* ABI 0 */
 36#define EF_ARM_VFP_FLOAT	0x00000400	/* ABI 0 */
 37#define EF_ARM_SOFT_FLOAT	0x00000200	/* ABI 0 */
 38#define EF_ARM_OLD_ABI		0x00000100	/* ABI 0 */
 39#define EF_ARM_NEW_ABI		0x00000080	/* ABI 0 */
 40#define EF_ARM_ALIGN8		0x00000040	/* ABI 0 */
 41#define EF_ARM_PIC		0x00000020	/* ABI 0 */
 42#define EF_ARM_MAPSYMSFIRST	0x00000010	/* ABI 2 */
 43#define EF_ARM_APCS_FLOAT	0x00000010	/* ABI 0, floats in fp regs */
 44#define EF_ARM_DYNSYMSUSESEGIDX	0x00000008	/* ABI 2 */
 45#define EF_ARM_APCS_26		0x00000008	/* ABI 0 */
 46#define EF_ARM_SYMSARESORTED	0x00000004	/* ABI 1,2 */
 47#define EF_ARM_INTERWORK	0x00000004	/* ABI 0 */
 48#define EF_ARM_HASENTRY		0x00000002	/* All */
 49#define EF_ARM_RELEXEC		0x00000001	/* All */
 50
 51#define R_ARM_NONE		0
 52#define R_ARM_PC24		1
 53#define R_ARM_ABS32		2
 54#define R_ARM_REL32		3
 55#define R_ARM_CALL		28
 56#define R_ARM_JUMP24		29
 57#define R_ARM_TARGET1		38
 58#define R_ARM_V4BX		40
 59#define R_ARM_PREL31		42
 60#define R_ARM_MOVW_ABS_NC	43
 61#define R_ARM_MOVT_ABS		44
 62#define R_ARM_MOVW_PREL_NC	45
 63#define R_ARM_MOVT_PREL		46
 64#define R_ARM_ALU_PC_G0_NC	57
 65#define R_ARM_ALU_PC_G1_NC	59
 66#define R_ARM_LDR_PC_G2		63
 67
 68#define R_ARM_THM_CALL		10
 69#define R_ARM_THM_JUMP24	30
 70#define R_ARM_THM_MOVW_ABS_NC	47
 71#define R_ARM_THM_MOVT_ABS	48
 72#define R_ARM_THM_MOVW_PREL_NC	49
 73#define R_ARM_THM_MOVT_PREL	50
 74
 75/*
 76 * These are used to set parameters in the core dumps.
 77 */
 78#define ELF_CLASS	ELFCLASS32
 79#ifdef __ARMEB__
 80#define ELF_DATA	ELFDATA2MSB
 81#else
 82#define ELF_DATA	ELFDATA2LSB
 83#endif
 84#define ELF_ARCH	EM_ARM
 85
 86/*
 87 * This yields a string that ld.so will use to load implementation
 88 * specific libraries for optimization.  This is more specific in
 89 * intent than poking at uname or /proc/cpuinfo.
 90 *
 91 * For now we just provide a fairly general string that describes the
 92 * processor family.  This could be made more specific later if someone
 93 * implemented optimisations that require it.  26-bit CPUs give you
 94 * "v1l" for ARM2 (no SWP) and "v2l" for anything else (ARM1 isn't
 95 * supported).  32-bit CPUs give you "v3[lb]" for anything based on an
 96 * ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1
 97 * core.
 98 */
 99#define ELF_PLATFORM_SIZE 8
100#define ELF_PLATFORM	(elf_platform)
101
102extern char elf_platform[];
103
104struct elf32_hdr;
105
106/*
107 * This is used to ensure we don't load something for the wrong architecture.
108 */
109extern int elf_check_arch(const struct elf32_hdr *);
110#define elf_check_arch elf_check_arch
111
112#define ELFOSABI_ARM_FDPIC  65	/* ARM FDPIC platform */
113#define elf_check_fdpic(x)  ((x)->e_ident[EI_OSABI] == ELFOSABI_ARM_FDPIC)
114#define elf_check_const_displacement(x)  ((x)->e_flags & EF_ARM_PIC)
115#define ELF_FDPIC_CORE_EFLAGS  0
116
117#define vmcore_elf64_check_arch(x) (0)
 
118
119extern int arm_elf_read_implies_exec(int);
120#define elf_read_implies_exec(ex,stk) arm_elf_read_implies_exec(stk)
 
121
122#define CORE_DUMP_USE_REGSET
123#define ELF_EXEC_PAGESIZE	4096
124
125/* This is the base location for PIE (ET_DYN with INTERP) loads. */
126#define ELF_ET_DYN_BASE		0x400000UL
 
 
 
 
127
128/* When the program starts, a1 contains a pointer to a function to be 
129   registered with atexit, as per the SVR4 ABI.  A value of 0 means we 
130   have no such handler.  */
131#define ELF_PLAT_INIT(_r, load_addr)	(_r)->ARM_r0 = 0
132
133#define ELF_FDPIC_PLAT_INIT(_r, _exec_map_addr, _interp_map_addr, dynamic_addr) \
134	do { \
135		(_r)->ARM_r7 = _exec_map_addr; \
136		(_r)->ARM_r8 = _interp_map_addr; \
137		(_r)->ARM_r9 = dynamic_addr; \
138	} while(0)
139
140extern void elf_set_personality(const struct elf32_hdr *);
141#define SET_PERSONALITY(ex)	elf_set_personality(&(ex))
142
 
 
 
 
143#ifdef CONFIG_MMU
144#ifdef CONFIG_VDSO
145#define ARCH_DLINFO						\
146do {								\
147	NEW_AUX_ENT(AT_SYSINFO_EHDR,				\
148		    (elf_addr_t)current->mm->context.vdso);	\
149} while (0)
150#endif
151#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
152struct linux_binprm;
153int arch_setup_additional_pages(struct linux_binprm *, int);
154#endif
155
156#endif