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Fixed a crash in MSVC Debug and RelWithDebInfo builds

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MSVC debug/relwithdebinfo builds use jmp trampolines for ASM functions, so these must be traversed to get the actual address of the code for each function.
This commit is contained in:
SChernykh
2021-11-06 22:15:07 +01:00
parent d589aa29d3
commit bbc9ccc90b
2 changed files with 26 additions and 17 deletions
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40
src/jit_compiler_x86.cpp
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@@ -94,22 +94,28 @@ namespace randomx {
constexpr int32_t superScalarHashOffset = RandomXCodeSize;
const uint8_t* codePrologue = (uint8_t*)&randomx_program_prologue;
const uint8_t* codeLoopBegin = (uint8_t*)&randomx_program_loop_begin;
const uint8_t* codeLoopLoad = (uint8_t*)&randomx_program_loop_load;
const uint8_t* codeProgamStart = (uint8_t*)&randomx_program_start;
const uint8_t* codeReadDataset = (uint8_t*)&randomx_program_read_dataset;
const uint8_t* codeReadDatasetLightSshInit = (uint8_t*)&randomx_program_read_dataset_sshash_init;
const uint8_t* codeReadDatasetLightSshFin = (uint8_t*)&randomx_program_read_dataset_sshash_fin;
const uint8_t* codeDatasetInit = (uint8_t*)&randomx_dataset_init;
const uint8_t* codeLoopStore = (uint8_t*)&randomx_program_loop_store;
const uint8_t* codeLoopEnd = (uint8_t*)&randomx_program_loop_end;
const uint8_t* codeEpilogue = (uint8_t*)&randomx_program_epilogue;
const uint8_t* codeProgramEnd = (uint8_t*)&randomx_program_end;
const uint8_t* codeShhLoad = (uint8_t*)&randomx_sshash_load;
const uint8_t* codeShhPrefetch = (uint8_t*)&randomx_sshash_prefetch;
const uint8_t* codeShhEnd = (uint8_t*)&randomx_sshash_end;
const uint8_t* codeShhInit = (uint8_t*)&randomx_sshash_init;
#if defined(_MSC_VER) && (defined(_DEBUG) || defined (RELWITHDEBINFO))
#define ADDR(x) ((((uint8_t*)&x)[0] == 0xE9) ? (((uint8_t*)&x) + *(const int32_t*)(((uint8_t*)&x) + 1) + 5) : ((uint8_t*)&x))
#else
#define ADDR(x) ((uint8_t*)&x)
#endif
const uint8_t* codePrologue = ADDR(randomx_program_prologue);
const uint8_t* codeLoopBegin = ADDR(randomx_program_loop_begin);
const uint8_t* codeLoopLoad = ADDR(randomx_program_loop_load);
const uint8_t* codeProgamStart = ADDR(randomx_program_start);
const uint8_t* codeReadDataset = ADDR(randomx_program_read_dataset);
const uint8_t* codeReadDatasetLightSshInit = ADDR(randomx_program_read_dataset_sshash_init);
const uint8_t* codeReadDatasetLightSshFin = ADDR(randomx_program_read_dataset_sshash_fin);
const uint8_t* codeDatasetInit = ADDR(randomx_dataset_init);
const uint8_t* codeLoopStore = ADDR(randomx_program_loop_store);
const uint8_t* codeLoopEnd = ADDR(randomx_program_loop_end);
const uint8_t* codeEpilogue = ADDR(randomx_program_epilogue);
const uint8_t* codeProgramEnd = ADDR(randomx_program_end);
const uint8_t* codeShhLoad = ADDR(randomx_sshash_load);
const uint8_t* codeShhPrefetch = ADDR(randomx_sshash_prefetch);
const uint8_t* codeShhEnd = ADDR(randomx_sshash_end);
const uint8_t* codeShhInit = ADDR(randomx_sshash_init);
const int32_t prologueSize = codeLoopBegin - codePrologue;
const int32_t loopLoadSize = codeProgamStart - codeLoopLoad;
@@ -320,7 +326,7 @@ namespace randomx {
emitByte(0xc0 + pcfg.readReg0);
emit(REX_XOR_RAX_R64);
emitByte(0xc0 + pcfg.readReg1);
emit((const uint8_t*)&randomx_prefetch_scratchpad, ((uint8_t*)&randomx_prefetch_scratchpad_end) - ((uint8_t*)&randomx_prefetch_scratchpad));
emit(ADDR(randomx_prefetch_scratchpad), ADDR(randomx_prefetch_scratchpad_end) - ADDR(randomx_prefetch_scratchpad));
memcpy(code + codePos, codeLoopStore, loopStoreSize);
codePos += loopStoreSize;
emit(SUB_EBX);