mirror of
https://github.com/openharmony/third_party_elfutils.git
synced 2026-08-27 04:41:15 -04:00
lizhenlin
62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
/* Fetch live process registers from TID.
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Copyright (C) 2024 CIP United 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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#include <stdlib.h>
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#if (defined(mips) || defined(__mips) || defined(__mips__) || defined(MIPS) || defined(__MIPS__)) && defined(__linux__)
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# include <sys/user.h>
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# include <sys/ptrace.h>
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#include <asm/ptrace.h>
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#endif
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#define BACKEND mips_
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#include "libebl_CPU.h"
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bool
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mips_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(mips) && !defined(__mips) && !defined(__mips__) && !defined(MIPS) && !defined(__MIPS__)) || !defined(__linux__)
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return false;
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#else /* __mips__ */
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/* For PTRACE_GETREGS */
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struct pt_regs gregs;
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if (ptrace (PTRACE_GETREGS, tid, 0, &gregs) != 0)
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return false;
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if (! setfunc (-1, 1, (Dwarf_Word *) &gregs.cp0_epc, arg))
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return false;
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return setfunc (0, 32, (Dwarf_Word *) &gregs.regs[0], arg);
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#endif /* __mips__ */
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}
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