You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
456 lines
13 KiB
456 lines
13 KiB
/* |
|
* This file is subject to the terms and conditions of the GNU General Public |
|
* License. See the file "COPYING" in the main directory of this archive |
|
* for more details. |
|
* |
|
* Much of this is taken from binutils and GNU libc ... |
|
*/ |
|
#ifndef _ASM_ELF_H |
|
#define _ASM_ELF_H |
|
|
|
#include <linux/auxvec.h> |
|
#include <linux/fs.h> |
|
#include <uapi/linux/elf.h> |
|
|
|
#include <asm/cpu-info.h> |
|
#include <asm/current.h> |
|
|
|
/* ELF header e_flags defines. */ |
|
/* MIPS architecture level. */ |
|
#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */ |
|
#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */ |
|
#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */ |
|
#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */ |
|
#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */ |
|
#define EF_MIPS_ARCH_32 0x50000000 /* MIPS32 code. */ |
|
#define EF_MIPS_ARCH_64 0x60000000 /* MIPS64 code. */ |
|
#define EF_MIPS_ARCH_32R2 0x70000000 /* MIPS32 R2 code. */ |
|
#define EF_MIPS_ARCH_64R2 0x80000000 /* MIPS64 R2 code. */ |
|
|
|
/* The ABI of a file. */ |
|
#define EF_MIPS_ABI_O32 0x00001000 /* O32 ABI. */ |
|
#define EF_MIPS_ABI_O64 0x00002000 /* O32 extended for 64 bit. */ |
|
|
|
#define PT_MIPS_REGINFO 0x70000000 |
|
#define PT_MIPS_RTPROC 0x70000001 |
|
#define PT_MIPS_OPTIONS 0x70000002 |
|
#define PT_MIPS_ABIFLAGS 0x70000003 |
|
|
|
/* Flags in the e_flags field of the header */ |
|
#define EF_MIPS_NOREORDER 0x00000001 |
|
#define EF_MIPS_PIC 0x00000002 |
|
#define EF_MIPS_CPIC 0x00000004 |
|
#define EF_MIPS_ABI2 0x00000020 |
|
#define EF_MIPS_OPTIONS_FIRST 0x00000080 |
|
#define EF_MIPS_32BITMODE 0x00000100 |
|
#define EF_MIPS_FP64 0x00000200 |
|
#define EF_MIPS_ABI 0x0000f000 |
|
#define EF_MIPS_ARCH 0xf0000000 |
|
|
|
#define DT_MIPS_RLD_VERSION 0x70000001 |
|
#define DT_MIPS_TIME_STAMP 0x70000002 |
|
#define DT_MIPS_ICHECKSUM 0x70000003 |
|
#define DT_MIPS_IVERSION 0x70000004 |
|
#define DT_MIPS_FLAGS 0x70000005 |
|
#define RHF_NONE 0x00000000 |
|
#define RHF_HARDWAY 0x00000001 |
|
#define RHF_NOTPOT 0x00000002 |
|
#define RHF_SGI_ONLY 0x00000010 |
|
#define DT_MIPS_BASE_ADDRESS 0x70000006 |
|
#define DT_MIPS_CONFLICT 0x70000008 |
|
#define DT_MIPS_LIBLIST 0x70000009 |
|
#define DT_MIPS_LOCAL_GOTNO 0x7000000a |
|
#define DT_MIPS_CONFLICTNO 0x7000000b |
|
#define DT_MIPS_LIBLISTNO 0x70000010 |
|
#define DT_MIPS_SYMTABNO 0x70000011 |
|
#define DT_MIPS_UNREFEXTNO 0x70000012 |
|
#define DT_MIPS_GOTSYM 0x70000013 |
|
#define DT_MIPS_HIPAGENO 0x70000014 |
|
#define DT_MIPS_RLD_MAP 0x70000016 |
|
|
|
#define R_MIPS_NONE 0 |
|
#define R_MIPS_16 1 |
|
#define R_MIPS_32 2 |
|
#define R_MIPS_REL32 3 |
|
#define R_MIPS_26 4 |
|
#define R_MIPS_HI16 5 |
|
#define R_MIPS_LO16 6 |
|
#define R_MIPS_GPREL16 7 |
|
#define R_MIPS_LITERAL 8 |
|
#define R_MIPS_GOT16 9 |
|
#define R_MIPS_PC16 10 |
|
#define R_MIPS_CALL16 11 |
|
#define R_MIPS_GPREL32 12 |
|
/* The remaining relocs are defined on Irix, although they are not |
|
in the MIPS ELF ABI. */ |
|
#define R_MIPS_UNUSED1 13 |
|
#define R_MIPS_UNUSED2 14 |
|
#define R_MIPS_UNUSED3 15 |
|
#define R_MIPS_SHIFT5 16 |
|
#define R_MIPS_SHIFT6 17 |
|
#define R_MIPS_64 18 |
|
#define R_MIPS_GOT_DISP 19 |
|
#define R_MIPS_GOT_PAGE 20 |
|
#define R_MIPS_GOT_OFST 21 |
|
/* |
|
* The following two relocation types are specified in the MIPS ABI |
|
* conformance guide version 1.2 but not yet in the psABI. |
|
*/ |
|
#define R_MIPS_GOTHI16 22 |
|
#define R_MIPS_GOTLO16 23 |
|
#define R_MIPS_SUB 24 |
|
#define R_MIPS_INSERT_A 25 |
|
#define R_MIPS_INSERT_B 26 |
|
#define R_MIPS_DELETE 27 |
|
#define R_MIPS_HIGHER 28 |
|
#define R_MIPS_HIGHEST 29 |
|
/* |
|
* The following two relocation types are specified in the MIPS ABI |
|
* conformance guide version 1.2 but not yet in the psABI. |
|
*/ |
|
#define R_MIPS_CALLHI16 30 |
|
#define R_MIPS_CALLLO16 31 |
|
/* |
|
* This range is reserved for vendor specific relocations. |
|
*/ |
|
#define R_MIPS_LOVENDOR 100 |
|
#define R_MIPS_HIVENDOR 127 |
|
|
|
#define SHN_MIPS_ACCOMON 0xff00 /* Allocated common symbols */ |
|
#define SHN_MIPS_TEXT 0xff01 /* Allocated test symbols. */ |
|
#define SHN_MIPS_DATA 0xff02 /* Allocated data symbols. */ |
|
#define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */ |
|
#define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */ |
|
|
|
#define SHT_MIPS_LIST 0x70000000 |
|
#define SHT_MIPS_CONFLICT 0x70000002 |
|
#define SHT_MIPS_GPTAB 0x70000003 |
|
#define SHT_MIPS_UCODE 0x70000004 |
|
#define SHT_MIPS_DEBUG 0x70000005 |
|
#define SHT_MIPS_REGINFO 0x70000006 |
|
#define SHT_MIPS_PACKAGE 0x70000007 |
|
#define SHT_MIPS_PACKSYM 0x70000008 |
|
#define SHT_MIPS_RELD 0x70000009 |
|
#define SHT_MIPS_IFACE 0x7000000b |
|
#define SHT_MIPS_CONTENT 0x7000000c |
|
#define SHT_MIPS_OPTIONS 0x7000000d |
|
#define SHT_MIPS_SHDR 0x70000010 |
|
#define SHT_MIPS_FDESC 0x70000011 |
|
#define SHT_MIPS_EXTSYM 0x70000012 |
|
#define SHT_MIPS_DENSE 0x70000013 |
|
#define SHT_MIPS_PDESC 0x70000014 |
|
#define SHT_MIPS_LOCSYM 0x70000015 |
|
#define SHT_MIPS_AUXSYM 0x70000016 |
|
#define SHT_MIPS_OPTSYM 0x70000017 |
|
#define SHT_MIPS_LOCSTR 0x70000018 |
|
#define SHT_MIPS_LINE 0x70000019 |
|
#define SHT_MIPS_RFDESC 0x7000001a |
|
#define SHT_MIPS_DELTASYM 0x7000001b |
|
#define SHT_MIPS_DELTAINST 0x7000001c |
|
#define SHT_MIPS_DELTACLASS 0x7000001d |
|
#define SHT_MIPS_DWARF 0x7000001e |
|
#define SHT_MIPS_DELTADECL 0x7000001f |
|
#define SHT_MIPS_SYMBOL_LIB 0x70000020 |
|
#define SHT_MIPS_EVENTS 0x70000021 |
|
#define SHT_MIPS_TRANSLATE 0x70000022 |
|
#define SHT_MIPS_PIXIE 0x70000023 |
|
#define SHT_MIPS_XLATE 0x70000024 |
|
#define SHT_MIPS_XLATE_DEBUG 0x70000025 |
|
#define SHT_MIPS_WHIRL 0x70000026 |
|
#define SHT_MIPS_EH_REGION 0x70000027 |
|
#define SHT_MIPS_XLATE_OLD 0x70000028 |
|
#define SHT_MIPS_PDR_EXCEPTION 0x70000029 |
|
|
|
#define SHF_MIPS_GPREL 0x10000000 |
|
#define SHF_MIPS_MERGE 0x20000000 |
|
#define SHF_MIPS_ADDR 0x40000000 |
|
#define SHF_MIPS_STRING 0x80000000 |
|
#define SHF_MIPS_NOSTRIP 0x08000000 |
|
#define SHF_MIPS_LOCAL 0x04000000 |
|
#define SHF_MIPS_NAMES 0x02000000 |
|
#define SHF_MIPS_NODUPES 0x01000000 |
|
|
|
#ifndef ELF_ARCH |
|
/* ELF register definitions */ |
|
#define ELF_NGREG 45 |
|
#define ELF_NFPREG 33 |
|
|
|
typedef unsigned long elf_greg_t; |
|
typedef elf_greg_t elf_gregset_t[ELF_NGREG]; |
|
|
|
typedef double elf_fpreg_t; |
|
typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; |
|
|
|
struct mips_elf_abiflags_v0 { |
|
uint16_t version; /* Version of flags structure */ |
|
uint8_t isa_level; /* The level of the ISA: 1-5, 32, 64 */ |
|
uint8_t isa_rev; /* The revision of ISA: 0 for MIPS V and below, |
|
1-n otherwise */ |
|
uint8_t gpr_size; /* The size of general purpose registers */ |
|
uint8_t cpr1_size; /* The size of co-processor 1 registers */ |
|
uint8_t cpr2_size; /* The size of co-processor 2 registers */ |
|
uint8_t fp_abi; /* The floating-point ABI */ |
|
uint32_t isa_ext; /* Mask of processor-specific extensions */ |
|
uint32_t ases; /* Mask of ASEs used */ |
|
uint32_t flags1; /* Mask of general flags */ |
|
uint32_t flags2; |
|
}; |
|
|
|
#define MIPS_ABI_FP_ANY 0 /* FP ABI doesn't matter */ |
|
#define MIPS_ABI_FP_DOUBLE 1 /* -mdouble-float */ |
|
#define MIPS_ABI_FP_SINGLE 2 /* -msingle-float */ |
|
#define MIPS_ABI_FP_SOFT 3 /* -msoft-float */ |
|
#define MIPS_ABI_FP_OLD_64 4 /* -mips32r2 -mfp64 */ |
|
#define MIPS_ABI_FP_XX 5 /* -mfpxx */ |
|
#define MIPS_ABI_FP_64 6 /* -mips32r2 -mfp64 */ |
|
#define MIPS_ABI_FP_64A 7 /* -mips32r2 -mfp64 -mno-odd-spreg */ |
|
|
|
#ifdef CONFIG_32BIT |
|
|
|
/* |
|
* In order to be sure that we don't attempt to execute an O32 binary which |
|
* requires 64 bit FP (FR=1) on a system which does not support it we refuse |
|
* to execute any binary which has bits specified by the following macro set |
|
* in its ELF header flags. |
|
*/ |
|
#ifdef CONFIG_MIPS_O32_FP64_SUPPORT |
|
# define __MIPS_O32_FP64_MUST_BE_ZERO 0 |
|
#else |
|
# define __MIPS_O32_FP64_MUST_BE_ZERO EF_MIPS_FP64 |
|
#endif |
|
|
|
/* |
|
* This is used to ensure we don't load something for the wrong architecture. |
|
*/ |
|
#define elf_check_arch(hdr) \ |
|
({ \ |
|
int __res = 1; \ |
|
struct elfhdr *__h = (hdr); \ |
|
\ |
|
if (__h->e_machine != EM_MIPS) \ |
|
__res = 0; \ |
|
if (__h->e_ident[EI_CLASS] != ELFCLASS32) \ |
|
__res = 0; \ |
|
if ((__h->e_flags & EF_MIPS_ABI2) != 0) \ |
|
__res = 0; \ |
|
if (((__h->e_flags & EF_MIPS_ABI) != 0) && \ |
|
((__h->e_flags & EF_MIPS_ABI) != EF_MIPS_ABI_O32)) \ |
|
__res = 0; \ |
|
if (__h->e_flags & __MIPS_O32_FP64_MUST_BE_ZERO) \ |
|
__res = 0; \ |
|
\ |
|
__res; \ |
|
}) |
|
|
|
/* |
|
* These are used to set parameters in the core dumps. |
|
*/ |
|
#define ELF_CLASS ELFCLASS32 |
|
|
|
#endif /* CONFIG_32BIT */ |
|
|
|
#ifdef CONFIG_64BIT |
|
/* |
|
* This is used to ensure we don't load something for the wrong architecture. |
|
*/ |
|
#define elf_check_arch(hdr) \ |
|
({ \ |
|
int __res = 1; \ |
|
struct elfhdr *__h = (hdr); \ |
|
\ |
|
if (__h->e_machine != EM_MIPS) \ |
|
__res = 0; \ |
|
if (__h->e_ident[EI_CLASS] != ELFCLASS64) \ |
|
__res = 0; \ |
|
\ |
|
__res; \ |
|
}) |
|
|
|
/* |
|
* These are used to set parameters in the core dumps. |
|
*/ |
|
#define ELF_CLASS ELFCLASS64 |
|
|
|
#endif /* CONFIG_64BIT */ |
|
|
|
/* |
|
* These are used to set parameters in the core dumps. |
|
*/ |
|
#ifdef __MIPSEB__ |
|
#define ELF_DATA ELFDATA2MSB |
|
#elif defined(__MIPSEL__) |
|
#define ELF_DATA ELFDATA2LSB |
|
#endif |
|
#define ELF_ARCH EM_MIPS |
|
|
|
#endif /* !defined(ELF_ARCH) */ |
|
|
|
struct mips_abi; |
|
|
|
extern struct mips_abi mips_abi; |
|
extern struct mips_abi mips_abi_32; |
|
extern struct mips_abi mips_abi_n32; |
|
|
|
#ifdef CONFIG_32BIT |
|
|
|
#define SET_PERSONALITY2(ex, state) \ |
|
do { \ |
|
if (personality(current->personality) != PER_LINUX) \ |
|
set_personality(PER_LINUX); \ |
|
\ |
|
clear_thread_flag(TIF_HYBRID_FPREGS); \ |
|
set_thread_flag(TIF_32BIT_FPREGS); \ |
|
\ |
|
mips_set_personality_fp(state); \ |
|
\ |
|
current->thread.abi = &mips_abi; \ |
|
\ |
|
current->thread.fpu.fcr31 = boot_cpu_data.fpu_csr31; \ |
|
} while (0) |
|
|
|
#endif /* CONFIG_32BIT */ |
|
|
|
#ifdef CONFIG_64BIT |
|
|
|
#ifdef CONFIG_MIPS32_N32 |
|
#define __SET_PERSONALITY32_N32() \ |
|
do { \ |
|
set_thread_flag(TIF_32BIT_ADDR); \ |
|
current->thread.abi = &mips_abi_n32; \ |
|
} while (0) |
|
#else |
|
#define __SET_PERSONALITY32_N32() \ |
|
do { } while (0) |
|
#endif |
|
|
|
#ifdef CONFIG_MIPS32_O32 |
|
#define __SET_PERSONALITY32_O32(ex, state) \ |
|
do { \ |
|
set_thread_flag(TIF_32BIT_REGS); \ |
|
set_thread_flag(TIF_32BIT_ADDR); \ |
|
clear_thread_flag(TIF_HYBRID_FPREGS); \ |
|
set_thread_flag(TIF_32BIT_FPREGS); \ |
|
\ |
|
mips_set_personality_fp(state); \ |
|
\ |
|
current->thread.abi = &mips_abi_32; \ |
|
} while (0) |
|
#else |
|
#define __SET_PERSONALITY32_O32(ex, state) \ |
|
do { } while (0) |
|
#endif |
|
|
|
#ifdef CONFIG_MIPS32_COMPAT |
|
#define __SET_PERSONALITY32(ex, state) \ |
|
do { \ |
|
if ((((ex).e_flags & EF_MIPS_ABI2) != 0) && \ |
|
((ex).e_flags & EF_MIPS_ABI) == 0) \ |
|
__SET_PERSONALITY32_N32(); \ |
|
else \ |
|
__SET_PERSONALITY32_O32(ex, state); \ |
|
} while (0) |
|
#else |
|
#define __SET_PERSONALITY32(ex, state) do { } while (0) |
|
#endif |
|
|
|
#define SET_PERSONALITY2(ex, state) \ |
|
do { \ |
|
unsigned int p; \ |
|
\ |
|
clear_thread_flag(TIF_32BIT_REGS); \ |
|
clear_thread_flag(TIF_32BIT_FPREGS); \ |
|
clear_thread_flag(TIF_HYBRID_FPREGS); \ |
|
clear_thread_flag(TIF_32BIT_ADDR); \ |
|
\ |
|
if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ |
|
__SET_PERSONALITY32(ex, state); \ |
|
else \ |
|
current->thread.abi = &mips_abi; \ |
|
\ |
|
current->thread.fpu.fcr31 = boot_cpu_data.fpu_csr31; \ |
|
\ |
|
p = personality(current->personality); \ |
|
if (p != PER_LINUX32 && p != PER_LINUX) \ |
|
set_personality(PER_LINUX); \ |
|
} while (0) |
|
|
|
#endif /* CONFIG_64BIT */ |
|
|
|
#define CORE_DUMP_USE_REGSET |
|
#define ELF_EXEC_PAGESIZE PAGE_SIZE |
|
|
|
/* This yields a mask that user programs can use to figure out what |
|
instruction set this cpu supports. This could be done in userspace, |
|
but it's not easy, and we've already done it here. */ |
|
|
|
#define ELF_HWCAP (elf_hwcap) |
|
extern unsigned int elf_hwcap; |
|
#include <asm/hwcap.h> |
|
|
|
/* |
|
* 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 __elf_platform |
|
extern const char *__elf_platform; |
|
|
|
/* |
|
* See comments in asm-alpha/elf.h, this is the same thing |
|
* on the MIPS. |
|
*/ |
|
#define ELF_PLAT_INIT(_r, load_addr) do { \ |
|
_r->regs[1] = _r->regs[2] = _r->regs[3] = _r->regs[4] = 0; \ |
|
_r->regs[5] = _r->regs[6] = _r->regs[7] = _r->regs[8] = 0; \ |
|
_r->regs[9] = _r->regs[10] = _r->regs[11] = _r->regs[12] = 0; \ |
|
_r->regs[13] = _r->regs[14] = _r->regs[15] = _r->regs[16] = 0; \ |
|
_r->regs[17] = _r->regs[18] = _r->regs[19] = _r->regs[20] = 0; \ |
|
_r->regs[21] = _r->regs[22] = _r->regs[23] = _r->regs[24] = 0; \ |
|
_r->regs[25] = _r->regs[26] = _r->regs[27] = _r->regs[28] = 0; \ |
|
_r->regs[30] = _r->regs[31] = 0; \ |
|
} while (0) |
|
|
|
/* 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. */ |
|
|
|
#ifndef ELF_ET_DYN_BASE |
|
#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) |
|
#endif |
|
|
|
#define ARCH_DLINFO \ |
|
do { \ |
|
NEW_AUX_ENT(AT_SYSINFO_EHDR, \ |
|
(unsigned long)current->mm->context.vdso); \ |
|
} while (0) |
|
|
|
#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 |
|
struct linux_binprm; |
|
extern int arch_setup_additional_pages(struct linux_binprm *bprm, |
|
int uses_interp); |
|
|
|
struct arch_elf_state { |
|
int fp_abi; |
|
int interp_fp_abi; |
|
int overall_fp_mode; |
|
}; |
|
|
|
#define MIPS_ABI_FP_UNKNOWN (-1) /* Unknown FP ABI (kernel internal) */ |
|
|
|
#define INIT_ARCH_ELF_STATE { \ |
|
.fp_abi = MIPS_ABI_FP_UNKNOWN, \ |
|
.interp_fp_abi = MIPS_ABI_FP_UNKNOWN, \ |
|
.overall_fp_mode = -1, \ |
|
} |
|
|
|
extern int arch_elf_pt_proc(void *ehdr, void *phdr, struct file *elf, |
|
bool is_interp, struct arch_elf_state *state); |
|
|
|
extern int arch_check_elf(void *ehdr, bool has_interpreter, |
|
struct arch_elf_state *state); |
|
|
|
extern void mips_set_personality_fp(struct arch_elf_state *state); |
|
|
|
#endif /* _ASM_ELF_H */
|
|
|