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af6e3f77e9
When FRAME is at a syscall instruction, return the PC of the next instruction to be executed. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
57 lines
2.0 KiB
C
57 lines
2.0 KiB
C
/* Target-dependent header for the LoongArch architecture, for GDB.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef LOONGARCH_TDEP_H
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#define LOONGARCH_TDEP_H
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#include "gdbarch.h"
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#include "arch/loongarch.h"
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#include "regset.h"
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#include "elf/loongarch.h"
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#include "opcode/loongarch.h"
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/* Register numbers of various important registers. */
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enum
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{
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LOONGARCH_RA_REGNUM = 1, /* Return Address. */
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LOONGARCH_SP_REGNUM = 3, /* Stack Pointer. */
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LOONGARCH_A0_REGNUM = 4, /* First Argument/Return Value. */
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LOONGARCH_A7_REGNUM = 11, /* Seventh Argument/Syscall Number. */
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LOONGARCH_FP_REGNUM = 22, /* Frame Pointer. */
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LOONGARCH_PC_REGNUM = 32, /* Program Counter. */
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LOONGARCH_BADV_REGNUM = 33, /* Bad Vaddr for Addressing Exception. */
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LOONGARCH_LINUX_NUM_GREGSET = 45, /* 32 GPR, PC, BADV, RESERVED 11. */
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};
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/* Register set definitions. */
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extern const struct regset loongarch_gregset;
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/* Target-dependent structure in gdbarch. */
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struct loongarch_gdbarch_tdep : gdbarch_tdep
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{
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/* Features about the abi that impact how the gdbarch is configured. */
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struct loongarch_gdbarch_features abi_features;
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/* Return the expected next PC if FRAME is stopped at a syscall instruction. */
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CORE_ADDR (*syscall_next_pc) (struct frame_info *frame) = nullptr;
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};
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#endif /* LOONGARCH_TDEP_H */
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