| /* Run-time dynamic linker data structures for loaded ELF shared objects. |
| Copyright (C) 2000-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef _MIPS_LDSODEFS_H |
| #define _MIPS_LDSODEFS_H 1 |
| |
| #include <elf.h> |
| |
| struct La_mips_32_regs; |
| struct La_mips_32_retval; |
| struct La_mips_64_regs; |
| struct La_mips_64_retval; |
| |
| #define ARCH_PLTENTER_MEMBERS \ |
| Elf32_Addr (*mips_o32_gnu_pltenter) (Elf32_Sym *, unsigned int, \ |
| uintptr_t *, uintptr_t *, \ |
| struct La_mips_32_regs *, \ |
| unsigned int *, const char *name, \ |
| long int *framesizep); \ |
| Elf32_Addr (*mips_n32_gnu_pltenter) (Elf32_Sym *, unsigned int, \ |
| uintptr_t *, uintptr_t *, \ |
| struct La_mips_64_regs *, \ |
| unsigned int *, const char *name, \ |
| long int *framesizep); \ |
| Elf64_Addr (*mips_n64_gnu_pltenter) (Elf64_Sym *, unsigned int, \ |
| uintptr_t *, uintptr_t *, \ |
| struct La_mips_64_regs *, \ |
| unsigned int *, const char *name, \ |
| long int *framesizep); |
| |
| #define ARCH_PLTEXIT_MEMBERS \ |
| unsigned int (*mips_o32_gnu_pltexit) (Elf32_Sym *, unsigned int, \ |
| uintptr_t *, uintptr_t *, \ |
| const struct La_mips_32_regs *, \ |
| struct La_mips_32_retval *, \ |
| const char *); \ |
| unsigned int (*mips_n32_gnu_pltexit) (Elf32_Sym *, unsigned int, \ |
| uintptr_t *, uintptr_t *, \ |
| const struct La_mips_64_regs *, \ |
| struct La_mips_64_retval *, \ |
| const char *); \ |
| unsigned int (*mips_n64_gnu_pltexit) (Elf64_Sym *, unsigned int, \ |
| uintptr_t *, uintptr_t *, \ |
| const struct La_mips_64_regs *, \ |
| struct La_mips_64_retval *, \ |
| const char *); |
| |
| /* The MIPS ABI specifies that the dynamic section has to be read-only. */ |
| |
| #define DL_RO_DYN_SECTION 1 |
| |
| #include_next <ldsodefs.h> |
| |
| /* The 64-bit MIPS ELF ABI uses an unusual reloc format. Each |
| relocation entry specifies up to three actual relocations, all at |
| the same address. The first relocation which required a symbol |
| uses the symbol in the r_sym field. The second relocation which |
| requires a symbol uses the symbol in the r_ssym field. If all |
| three relocations require a symbol, the third one uses a zero |
| value. |
| |
| We define these structures in internal headers because we're not |
| sure we want to make them part of the ABI yet. Eventually, some of |
| this may move into elf/elf.h. */ |
| |
| /* An entry in a 64 bit SHT_REL section. */ |
| |
| typedef struct |
| { |
| Elf32_Word r_sym; /* Symbol index */ |
| unsigned char r_ssym; /* Special symbol for 2nd relocation */ |
| unsigned char r_type3; /* 3rd relocation type */ |
| unsigned char r_type2; /* 2nd relocation type */ |
| unsigned char r_type1; /* 1st relocation type */ |
| } _Elf64_Mips_R_Info; |
| |
| typedef union |
| { |
| Elf64_Xword r_info_number; |
| _Elf64_Mips_R_Info r_info_fields; |
| } _Elf64_Mips_R_Info_union; |
| |
| typedef struct |
| { |
| Elf64_Addr r_offset; /* Address */ |
| _Elf64_Mips_R_Info_union r_info; /* Relocation type and symbol index */ |
| } Elf64_Mips_Rel; |
| |
| typedef struct |
| { |
| Elf64_Addr r_offset; /* Address */ |
| _Elf64_Mips_R_Info_union r_info; /* Relocation type and symbol index */ |
| Elf64_Sxword r_addend; /* Addend */ |
| } Elf64_Mips_Rela; |
| |
| #define ELF64_MIPS_R_SYM(i) \ |
| ((__extension__ (_Elf64_Mips_R_Info_union)(i)).r_info_fields.r_sym) |
| #define ELF64_MIPS_R_TYPE(i) \ |
| (((_Elf64_Mips_R_Info_union)(i)).r_info_fields.r_type1 \ |
| | ((Elf32_Word)(__extension__ (_Elf64_Mips_R_Info_union)(i) \ |
| ).r_info_fields.r_type2 << 8) \ |
| | ((Elf32_Word)(__extension__ (_Elf64_Mips_R_Info_union)(i) \ |
| ).r_info_fields.r_type3 << 16) \ |
| | ((Elf32_Word)(__extension__ (_Elf64_Mips_R_Info_union)(i) \ |
| ).r_info_fields.r_ssym << 24)) |
| #define ELF64_MIPS_R_INFO(sym, type) \ |
| (__extension__ (_Elf64_Mips_R_Info_union) \ |
| (__extension__ (_Elf64_Mips_R_Info) \ |
| { (sym), ELF64_MIPS_R_SSYM (type), \ |
| ELF64_MIPS_R_TYPE3 (type), \ |
| ELF64_MIPS_R_TYPE2 (type), \ |
| ELF64_MIPS_R_TYPE1 (type) \ |
| }).r_info_number) |
| /* These macros decompose the value returned by ELF64_MIPS_R_TYPE, and |
| compose it back into a value that it can be used as an argument to |
| ELF64_MIPS_R_INFO. */ |
| #define ELF64_MIPS_R_SSYM(i) (((i) >> 24) & 0xff) |
| #define ELF64_MIPS_R_TYPE3(i) (((i) >> 16) & 0xff) |
| #define ELF64_MIPS_R_TYPE2(i) (((i) >> 8) & 0xff) |
| #define ELF64_MIPS_R_TYPE1(i) ((i) & 0xff) |
| #define ELF64_MIPS_R_TYPEENC(type1, type2, type3, ssym) \ |
| ((type1) \ |
| | ((Elf32_Word)(type2) << 8) \ |
| | ((Elf32_Word)(type3) << 16) \ |
| | ((Elf32_Word)(ssym) << 24)) |
| |
| #undef ELF64_R_SYM |
| #define ELF64_R_SYM(i) ELF64_MIPS_R_SYM (i) |
| #undef ELF64_R_TYPE |
| #define ELF64_R_TYPE(i) ELF64_MIPS_R_TYPE (i) |
| #undef ELF64_R_INFO |
| #define ELF64_R_INFO(sym, type) ELF64_MIPS_R_INFO ((sym), (type)) |
| |
| #endif |