Builds/RandomWOW
1
0
Fork 0
mirror of https://codeberg.org/wownero/RandomWOW synced 2026-03-05 06:07:33 -05:00
Code Issues Packages Projects Releases Wiki Activity

Fixed UB in ARM64 JIT compiler

Browse Source 
Fixed unaligned memory writes
This commit is contained in:
SChernykh
2023-10-20 09:04:35 +02:00
parent d3c96482ee
commit 8f91d31b8b
2 changed files with 3 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
src/jit_compiler_a64.cpp
View File

@@ -709,7 +709,8 @@ void JitCompilerA64::h_IMUL_RCP(Instruction& instr, uint32_t& codePos)
const uint32_t literal_id = (ImulRcpLiteralsEnd - literalPos) / sizeof(uint64_t);
literalPos -= sizeof(uint64_t);
*(uint64_t*)(code + literalPos) = (q << shift) + ((r << shift) / divisor);
const uint64_t randomx_reciprocal = (q << shift) + ((r << shift) / divisor);
memcpy(code + literalPos, &randomx_reciprocal, sizeof(randomx_reciprocal));
if (literal_id < 12)
{

2
src/jit_compiler_a64.hpp
View File

@@ -81,7 +81,7 @@ namespace randomx {
static void emit64(uint64_t val, uint8_t* code, uint32_t& codePos)
{
*(uint64_t*)(code + codePos) = val;
memcpy(code + codePos, &val, sizeof(val));
codePos += sizeof(val);
}