| Elliott Hughes | 0333382 | 2015-02-18 22:19:45 -0800 | [diff] [blame] | 1 | /* Fetch live process registers from TID. |
| 2 | Copyright (C) 2013 Red Hat, Inc. |
| 3 | This file is part of elfutils. |
| 4 | |
| 5 | This file is free software; you can redistribute it and/or modify |
| 6 | it under the terms of either |
| 7 | |
| 8 | * the GNU Lesser General Public License as published by the Free |
| 9 | Software Foundation; either version 3 of the License, or (at |
| 10 | your option) any later version |
| 11 | |
| 12 | or |
| 13 | |
| 14 | * the GNU General Public License as published by the Free |
| 15 | Software Foundation; either version 2 of the License, or (at |
| 16 | your option) any later version |
| 17 | |
| 18 | or both in parallel, as here. |
| 19 | |
| 20 | elfutils is distributed in the hope that it will be useful, but |
| 21 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 23 | General Public License for more details. |
| 24 | |
| 25 | You should have received copies of the GNU General Public License and |
| 26 | the GNU Lesser General Public License along with this program. If |
| 27 | not, see <http://www.gnu.org/licenses/>. */ |
| 28 | |
| 29 | #ifdef HAVE_CONFIG_H |
| 30 | # include <config.h> |
| 31 | #endif |
| 32 | |
| 33 | #if defined __i386__ || defined __x86_64__ |
| 34 | # include <sys/types.h> |
| 35 | # include <sys/user.h> |
| 36 | # include <sys/ptrace.h> |
| 37 | #endif |
| 38 | |
| 39 | #define BACKEND i386_ |
| 40 | #include "libebl_CPU.h" |
| 41 | |
| 42 | bool |
| 43 | i386_set_initial_registers_tid (pid_t tid __attribute__ ((unused)), |
| 44 | ebl_tid_registers_t *setfunc __attribute__ ((unused)), |
| 45 | void *arg __attribute__ ((unused))) |
| 46 | { |
| 47 | #if (!defined __i386__ && !defined __x86_64__) || !defined(__linux__) |
| 48 | return false; |
| 49 | #else /* __i386__ || __x86_64__ */ |
| 50 | struct user_regs_struct user_regs; |
| 51 | if (ptrace (PTRACE_GETREGS, tid, NULL, &user_regs) != 0) |
| 52 | return false; |
| 53 | Dwarf_Word dwarf_regs[9]; |
| 54 | # if defined __i386__ |
| 55 | dwarf_regs[0] = user_regs.eax; |
| 56 | dwarf_regs[1] = user_regs.ecx; |
| 57 | dwarf_regs[2] = user_regs.edx; |
| 58 | dwarf_regs[3] = user_regs.ebx; |
| 59 | dwarf_regs[4] = user_regs.esp; |
| 60 | dwarf_regs[5] = user_regs.ebp; |
| 61 | dwarf_regs[6] = user_regs.esi; |
| 62 | dwarf_regs[7] = user_regs.edi; |
| 63 | dwarf_regs[8] = user_regs.eip; |
| 64 | # elif defined __x86_64__ |
| 65 | dwarf_regs[0] = user_regs.rax; |
| 66 | dwarf_regs[1] = user_regs.rcx; |
| 67 | dwarf_regs[2] = user_regs.rdx; |
| 68 | dwarf_regs[3] = user_regs.rbx; |
| 69 | dwarf_regs[4] = user_regs.rsp; |
| 70 | dwarf_regs[5] = user_regs.rbp; |
| 71 | dwarf_regs[6] = user_regs.rsi; |
| 72 | dwarf_regs[7] = user_regs.rdi; |
| 73 | dwarf_regs[8] = user_regs.rip; |
| 74 | # else /* (__i386__ || __x86_64__) && (!__i386__ && !__x86_64__) */ |
| 75 | # error "source file error, it cannot happen" |
| 76 | # endif /* (__i386__ || __x86_64__) && (!__i386__ && !__x86_64__) */ |
| 77 | return setfunc (0, 9, dwarf_regs, arg); |
| 78 | #endif /* __i386__ || __x86_64__ */ |
| 79 | } |