| /* |
| * 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/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_NAN2008 0x00000400 |
| #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 |
| /* |
| * Introduced for MIPSr6. |
| */ |
| #define R_MIPS_PC21_S2 60 |
| #define R_MIPS_PC26_S2 61 |
| /* |
| * 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 (!mips_elf_check_machine(__h)) \ |
| __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 (!mips_elf_check_machine(__h)) \ |
| __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) */ |
| |
| #define mips_elf_check_machine(x) ((x)->e_machine == EM_MIPS) |
| |
| #define vmcore_elf32_check_arch mips_elf_check_machine |
| #define vmcore_elf64_check_arch mips_elf_check_machine |
| |
| 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 { \ |
| clear_thread_flag(TIF_HYBRID_FPREGS); \ |
| set_thread_flag(TIF_32BIT_FPREGS); \ |
| \ |
| current->thread.abi = &mips_abi; \ |
| \ |
| mips_set_personality_fp(state); \ |
| mips_set_personality_nan(state); \ |
| \ |
| if (personality(current->personality) != PER_LINUX) \ |
| set_personality(PER_LINUX); \ |
| } 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); \ |
| \ |
| current->thread.abi = &mips_abi_32; \ |
| \ |
| mips_set_personality_fp(state); \ |
| } 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; \ |
| \ |
| mips_set_personality_nan(state); \ |
| \ |
| 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 nan_2008; |
| 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 { \ |
| .nan_2008 = -1, \ |
| .fp_abi = MIPS_ABI_FP_UNKNOWN, \ |
| .interp_fp_abi = MIPS_ABI_FP_UNKNOWN, \ |
| .overall_fp_mode = -1, \ |
| } |
| |
| /* Whether to accept legacy-NaN and 2008-NaN user binaries. */ |
| extern bool mips_use_nan_legacy; |
| extern bool mips_use_nan_2008; |
| |
| 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, void *interp_ehdr, |
| struct arch_elf_state *state); |
| |
| extern void mips_set_personality_nan(struct arch_elf_state *state); |
| extern void mips_set_personality_fp(struct arch_elf_state *state); |
| |
| #endif /* _ASM_ELF_H */ |