1 /* 2 * This file is part of ltrace. 3 * Copyright (C) 2013 Petr Machata 4 * Copyright (C) 2006 Eric Vaitl 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 of the 9 * License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, but 12 * WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 19 * 02110-1301 USA 20 */ 21 22 #ifndef LTRACE_MIPS_ARCH_H 23 #define LTRACE_MIPS_ARCH_H 24 25 #include <stddef.h> 26 #include <gelf.h> 27 28 #ifdef __MIPSEL__ 29 # define BREAKPOINT_VALUE { 0x0d, 0x00, 0x00, 0x00 } 30 # define ARCH_ENDIAN_LITTLE 31 #elif defined(__MIPSEB__) 32 # define BREAKPOINT_VALUE { 0x00, 0x00, 0x00, 0x0d } 33 # define ARCH_ENDIAN_BIG 34 #else 35 # error __MIPSEL__ or __MIPSEB__ must be defined 36 #endif 37 38 #define BREAKPOINT_LENGTH 4 39 #define DECR_PC_AFTER_BREAK 0 40 41 #define LT_ELFCLASS ELFCLASS32 42 #define LT_ELF_MACHINE EM_MIPS 43 44 #define ARCH_HAVE_LTELF_DATA 45 struct arch_ltelf_data { 46 size_t pltgot_addr; 47 size_t mips_local_gotno; 48 size_t mips_gotsym; 49 }; 50 51 #define ARCH_HAVE_FIND_DL_DEBUG 52 #define ARCH_HAVE_GET_SYMINFO 53 #define ARCH_HAVE_DYNLINK_DONE 54 #define ARCH_HAVE_ADD_PLT_ENTRY 55 #define ARCH_HAVE_SW_SINGLESTEP 56 #define ARCH_HAVE_SYMBOL_RET 57 58 #define ARCH_HAVE_LIBRARY_SYMBOL_DATA 59 enum mips_plt_type 60 { 61 MIPS_PLT_UNRESOLVED, 62 MIPS_PLT_RESOLVED, 63 }; 64 65 struct arch_library_symbol_data { 66 enum mips_plt_type type; 67 GElf_Addr resolved_addr; 68 GElf_Addr stub_addr; 69 70 /* Set for FUNCs that have GOT entries but not PLT entries. */ 71 int gotonly : 1; 72 /* Set for FUNCs that have PLT entries that are always used. */ 73 int pltalways : 1; 74 }; 75 76 #endif /* LTRACE_MIPS_ARCH_H */ 77
