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[SIGNAL] Better signal logging when trace enabled (#2572)

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* [SIGNAL] Better signal logging when trace enabled

* fix
This commit is contained in:
Yang Liu 2025-04-24 22:40:39 +08:00 committed by GitHub
parent 740f4a19dc
commit d8212fab48
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GPG Key ID: B5690EEEBB952194
1 changed files with 11 additions and 2 deletions
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13
src/libtools/signals.c
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@ -34,6 +34,7 @@
#include "custommem.h"
#include "bridge.h"
#include "khash.h"
#include "x64trace.h"
#ifdef DYNAREC
#include "dynablock.h"
#include "../dynarec/dynablock_private.h"
@ -2135,10 +2136,18 @@ dynarec_log(/*LOG_DEBUG*/LOG_INFO, "%04d|Repeated SIGSEGV with Access error on %
for (int i=0; i<6; ++i)
printf_log_prefix(0, log_minimum, "%s:0x%04x ", seg_name[i], emu->segs[i]);
}
zydis_dec_t* dec = emu->segs[_CS] == 0x23 ? my_context->dec32 : my_context->dec;
if(sig==SIGILL) {
printf_log_prefix(0, log_minimum, " opcode=%02X %02X %02X %02X %02X %02X %02X %02X (%02X %02X %02X %02X %02X)\n", ((uint8_t*)pc)[0], ((uint8_t*)pc)[1], ((uint8_t*)pc)[2], ((uint8_t*)pc)[3], ((uint8_t*)pc)[4], ((uint8_t*)pc)[5], ((uint8_t*)pc)[6], ((uint8_t*)pc)[7], ((uint8_t*)x64pc)[0], ((uint8_t*)x64pc)[1], ((uint8_t*)x64pc)[2], ((uint8_t*)x64pc)[3], ((uint8_t*)x64pc)[4]);
printf_log_prefix(0, log_minimum, " opcode=%02X %02X %02X %02X %02X %02X %02X %02X ", ((uint8_t*)pc)[0], ((uint8_t*)pc)[1], ((uint8_t*)pc)[2], ((uint8_t*)pc)[3], ((uint8_t*)pc)[4], ((uint8_t*)pc)[5], ((uint8_t*)pc)[6], ((uint8_t*)pc)[7]);
if (dec)
printf_log_prefix(0, log_minimum, "(%s)\n", DecodeX64Trace(dec, x64pc, 1));
else
printf_log_prefix(0, log_minimum, "(%02X %02X %02X %02X %02X)\n", ((uint8_t*)x64pc)[0], ((uint8_t*)x64pc)[1], ((uint8_t*)x64pc)[2], ((uint8_t*)x64pc)[3], ((uint8_t*)x64pc)[4]);
} else if(sig==SIGBUS || (sig==SIGSEGV && (x64pc!=(uintptr_t)addr) && (pc!=addr)) && (getProtection_fast(x64pc)&PROT_READ) && (getProtection_fast((uintptr_t)pc)&PROT_READ)) {
printf_log_prefix(0, log_minimum, " %sopcode=%02X %02X %02X %02X %02X %02X %02X %02X (opcode=%08x)\n", (emu->segs[_CS]==0x23)?"x86":"x64", ((uint8_t*)x64pc)[0], ((uint8_t*)x64pc)[1], ((uint8_t*)x64pc)[2], ((uint8_t*)x64pc)[3], ((uint8_t*)x64pc)[4], ((uint8_t*)x64pc)[5], ((uint8_t*)x64pc)[6], ((uint8_t*)x64pc)[7], *(uint32_t*)pc);
if (dec)
printf_log_prefix(0, log_minimum, " %sopcode=%s; native opcode=%08x\n", (emu->segs[_CS] == 0x23) ? "x86" : "x64", DecodeX64Trace(dec, x64pc, 1), *(uint32_t*)pc);
else
printf_log_prefix(0, log_minimum, " %sopcode=%02X %02X %02X %02X %02X %02X %02X %02X (opcode=%08x)\n", (emu->segs[_CS] == 0x23) ? "x86" : "x64", ((uint8_t*)x64pc)[0], ((uint8_t*)x64pc)[1], ((uint8_t*)x64pc)[2], ((uint8_t*)x64pc)[3], ((uint8_t*)x64pc)[4], ((uint8_t*)x64pc)[5], ((uint8_t*)x64pc)[6], ((uint8_t*)x64pc)[7], *(uint32_t*)pc);
} else {
printf_log_prefix(0, log_minimum, "\n");
}