77 lines
1.7 KiB
C
77 lines
1.7 KiB
C
/*
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* Copyright 2014 Google Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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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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*/
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#include <exception.h>
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#include <gdb.h>
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#include <libpayload.h>
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struct gdb_regs
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{
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u64 x[32];
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struct fp_reg
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{
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u64 quad[2];
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} __attribute__((packed)) f[32];
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u32 fpcr;
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u32 fpsr;
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u32 spsr;
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} __attribute__((packed));
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static const u8 type_to_signal[] = {
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[EXC_SYNC_SP0] = GDB_SIGTRAP,
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[EXC_IRQ_SP0] = GDB_SIGSEGV,
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[EXC_FIQ_SP0] = GDB_SIGSEGV,
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[EXC_SERROR_SP0] = GDB_SIGSEGV,
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[EXC_SYNC_SPX] = GDB_SIGTRAP,
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[EXC_IRQ_SPX] = GDB_SIGSEGV,
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[EXC_FIQ_SPX] = GDB_SIGSEGV,
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[EXC_SERROR_SPX] = GDB_SIGSEGV,
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[EXC_SYNC_ELX_64] = GDB_SIGTRAP,
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[EXC_IRQ_ELX_64] = GDB_SIGSEGV,
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[EXC_FIQ_ELX_64] = GDB_SIGSEGV,
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[EXC_SERROR_ELX_64] = GDB_SIGSEGV,
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[EXC_SYNC_ELX_32] = GDB_SIGTRAP,
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[EXC_IRQ_ELX_32] = GDB_SIGSEGV,
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[EXC_FIQ_ELX_32] = GDB_SIGSEGV,
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[EXC_SERROR_ELX_32] = GDB_SIGSEGV
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};
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static int gdb_exception_hook(u32 type)
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{
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return -1;
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}
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void gdb_arch_init(void)
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{
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exception_install_hook(&gdb_exception_hook);
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}
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void gdb_arch_enter(void)
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{
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}
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int gdb_arch_set_single_step(int on)
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{
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/* GDB seems to only need this on x86, ARM works fine without it. */
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return -1;
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}
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void gdb_arch_encode_regs(struct gdb_message *message)
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{
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}
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void gdb_arch_decode_regs(int offset, struct gdb_message *message)
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{
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}
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