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Fix alignment for Linux

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This commit is contained in:
SChernykh 2020-12-14 18:32:25 +01:00
parent f89f6a8abf
commit 414588d701
1 changed files with 12 additions and 2 deletions
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14
src/crypto/randomx/jit_compiler_x86.cpp
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@ -170,16 +170,26 @@ namespace randomx {
{0x0F, 0x1F, 0x44, 0x00, 0x00, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E}, {0x0F, 0x1F, 0x44, 0x00, 0x00, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E},
}; };
static inline uint8_t* alignToPage(uint8_t* p, size_t pageSize) {
size_t k = (size_t) p;
k -= k % pageSize;
return (uint8_t*) k;
}
size_t JitCompilerX86::getCodeSize() { size_t JitCompilerX86::getCodeSize() {
return codePos < prologueSize ? 0 : codePos - prologueSize; return codePos < prologueSize ? 0 : codePos - prologueSize;
} }
void JitCompilerX86::enableWriting() const { void JitCompilerX86::enableWriting() const {
xmrig::VirtualMemory::protectRW(code, CodeSize); uint8_t* p1 = alignToPage(code, 4096);
uint8_t* p2 = code + CodeSize;
xmrig::VirtualMemory::protectRW(p1, p2 - p1);
} }
void JitCompilerX86::enableExecution() const { void JitCompilerX86::enableExecution() const {
xmrig::VirtualMemory::protectRX(code, CodeSize); uint8_t* p1 = alignToPage(code, 4096);
uint8_t* p2 = code + CodeSize;
xmrig::VirtualMemory::protectRX(p1, p2 - p1);
} }
static inline void cpuid(uint32_t level, int32_t output[4]) static inline void cpuid(uint32_t level, int32_t output[4])