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80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
/* Fetch live process registers from TID.
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Copyright (C) 2013 Red Hat, Inc.
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This file is part of elfutils.
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This file is free software; you can redistribute it and/or modify
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it under the terms of either
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at
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your option) any later version
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or
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* the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at
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your option) any later version
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or both in parallel, as here.
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elfutils is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received copies of the GNU General Public License and
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the GNU Lesser General Public License along with this program. If
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not, see <http://www.gnu.org/licenses/>. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#if (defined __i386__ || defined __x86_64__) && defined(__linux__)
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# include <sys/types.h>
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# include <sys/user.h>
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# include <sys/ptrace.h>
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#endif
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#define BACKEND i386_
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#include "libebl_CPU.h"
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bool
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i386_set_initial_registers_tid (pid_t tid __attribute__ ((unused)),
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ebl_tid_registers_t *setfunc __attribute__ ((unused)),
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void *arg __attribute__ ((unused)))
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{
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#if (!defined __i386__ && !defined __x86_64__) || !defined(__linux__)
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return false;
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#else /* __i386__ || __x86_64__ */
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struct user_regs_struct user_regs;
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if (ptrace (PTRACE_GETREGS, tid, NULL, &user_regs) != 0)
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return false;
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Dwarf_Word dwarf_regs[9];
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# if defined __i386__
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dwarf_regs[0] = user_regs.eax;
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dwarf_regs[1] = user_regs.ecx;
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dwarf_regs[2] = user_regs.edx;
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dwarf_regs[3] = user_regs.ebx;
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dwarf_regs[4] = user_regs.esp;
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dwarf_regs[5] = user_regs.ebp;
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dwarf_regs[6] = user_regs.esi;
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dwarf_regs[7] = user_regs.edi;
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dwarf_regs[8] = user_regs.eip;
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# elif defined __x86_64__
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dwarf_regs[0] = user_regs.rax;
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dwarf_regs[1] = user_regs.rcx;
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dwarf_regs[2] = user_regs.rdx;
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dwarf_regs[3] = user_regs.rbx;
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dwarf_regs[4] = user_regs.rsp;
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dwarf_regs[5] = user_regs.rbp;
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dwarf_regs[6] = user_regs.rsi;
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dwarf_regs[7] = user_regs.rdi;
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dwarf_regs[8] = user_regs.rip;
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# else /* (__i386__ || __x86_64__) && (!__i386__ && !__x86_64__) */
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# error "source file error, it cannot happen"
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# endif /* (__i386__ || __x86_64__) && (!__i386__ && !__x86_64__) */
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return setfunc (0, 9, dwarf_regs, arg);
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#endif /* __i386__ || __x86_64__ */
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}
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