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Diffstat (limited to 'include/asm-mips/elf.h')
| -rw-r--r-- | include/asm-mips/elf.h | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/include/asm-mips/elf.h b/include/asm-mips/elf.h new file mode 100644 index 000000000000..7b92c8045cc2 --- /dev/null +++ b/include/asm-mips/elf.h @@ -0,0 +1,282 @@ +/* + * 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. + */ +#ifndef _ASM_ELF_H +#define _ASM_ELF_H + +#include <linux/config.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. */ + +/* 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 + +/* 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_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 + +#define SHT_MIPS_LIST 0x70000000 +#define SHT_MIPS_CONFLICT 0x70000002 +#define SHT_MIPS_GPTAB 0x70000003 +#define SHT_MIPS_UCODE 0x70000004 + +#define SHF_MIPS_GPREL 0x10000000 + +#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]; + +#ifdef CONFIG_MIPS32 + +/* + * 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; \ + \ + __res; \ +}) + +/* + * These are used to set parameters in the core dumps. + */ +#define ELF_CLASS ELFCLASS32 + +#endif /* CONFIG_MIPS32 */ + +#ifdef CONFIG_MIPS64 +/* + * 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_MIPS64 */ + +/* + * These are used to set parameters in the core dumps. + */ +#ifdef __MIPSEB__ +#define ELF_DATA ELFDATA2MSB +#elif __MIPSEL__ +#define ELF_DATA ELFDATA2LSB +#endif +#define ELF_ARCH EM_MIPS + +#endif /* !defined(ELF_ARCH) */ + +#ifdef __KERNEL__ + +#ifdef CONFIG_MIPS32 + +#define SET_PERSONALITY(ex, ibcs2) \ +do { \ + if (ibcs2) \ + set_personality(PER_SVR4); \ + set_personality(PER_LINUX); \ +} while (0) + +#endif /* CONFIG_MIPS32 */ + +#ifdef CONFIG_MIPS64 + +#define SET_PERSONALITY(ex, ibcs2) \ +do { current->thread.mflags &= ~MF_ABI_MASK; \ + if ((ex).e_ident[EI_CLASS] == ELFCLASS32) { \ + if ((((ex).e_flags & EF_MIPS_ABI2) != 0) && \ + ((ex).e_flags & EF_MIPS_ABI) == 0) \ + current->thread.mflags |= MF_N32; \ + else \ + current->thread.mflags |= MF_O32; \ + } else \ + current->thread.mflags |= MF_N64; \ + if (ibcs2) \ + set_personality(PER_SVR4); \ + else if (current->personality != PER_LINUX32) \ + set_personality(PER_LINUX); \ +} while (0) + +#endif /* CONFIG_MIPS64 */ + +extern void dump_regs(elf_greg_t *, struct pt_regs *regs); +extern int dump_task_fpu(struct task_struct *, elf_fpregset_t *); + +#define ELF_CORE_COPY_REGS(elf_regs, regs) \ + dump_regs((elf_greg_t *)&(elf_regs), regs); +#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) \ + dump_task_fpu(tsk, elf_fpregs) + +#endif /* __KERNEL__ */ + +/* This one accepts IRIX binaries. */ +#define irix_elf_check_arch(hdr) ((hdr)->e_flags & RHF_SGI_ONLY) + +#define USE_ELF_CORE_DUMP +#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 (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. + + For the moment, we have only optimizations for the Intel generations, + but that could change... */ + +#define ELF_PLATFORM (NULL) + +/* + * 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 + +#endif /* _ASM_ELF_H */ |