diff options
Diffstat (limited to 'Source/JavaScriptCore/assembler/ARMv7Assembler.h')
| -rw-r--r-- | Source/JavaScriptCore/assembler/ARMv7Assembler.h | 37 |
1 files changed, 34 insertions, 3 deletions
diff --git a/Source/JavaScriptCore/assembler/ARMv7Assembler.h b/Source/JavaScriptCore/assembler/ARMv7Assembler.h index 5b523c277..0cbe799b4 100644 --- a/Source/JavaScriptCore/assembler/ARMv7Assembler.h +++ b/Source/JavaScriptCore/assembler/ARMv7Assembler.h @@ -2026,7 +2026,7 @@ public: linkJumpAbsolute(reinterpret_cast<uint16_t*>(from), to); - ExecutableAllocator::cacheFlush(reinterpret_cast<uint16_t*>(from) - 5, 5 * sizeof(uint16_t)); + cacheFlush(reinterpret_cast<uint16_t*>(from) - 5, 5 * sizeof(uint16_t)); } static void relinkCall(void* from, void* to) @@ -2070,6 +2070,37 @@ public: unsigned debugOffset() { return m_formatter.debugOffset(); } + static void cacheFlush(void* code, size_t size) + { +#if OS(IOS) + sys_cache_control(kCacheFunctionPrepareForExecution, code, size); +#elif OS(LINUX) + asm volatile( + "push {r7}\n" + "mov r0, %0\n" + "mov r1, %1\n" + "movw r7, #0x2\n" + "movt r7, #0xf\n" + "movs r2, #0x0\n" + "svc 0x0\n" + "pop {r7}\n" + : + : "r" (code), "r" (reinterpret_cast<char*>(code) + size) + : "r0", "r1", "r2"); +#elif OS(WINCE) + CacheRangeFlush(code, size, CACHE_SYNC_ALL); +#elif OS(QNX) +#if !ENABLE(ASSEMBLER_WX_EXCLUSIVE) + msync(code, size, MS_INVALIDATE_ICACHE); +#else + UNUSED_PARAM(code); + UNUSED_PARAM(size); +#endif +#else +#error "The cacheFlush support is missing on this platform." +#endif + } + private: // VFP operations commonly take one or more 5-bit operands, typically representing a // floating point register number. This will commonly be encoded in the instruction @@ -2149,7 +2180,7 @@ private: location[-2] = twoWordOp5i6Imm4Reg4EncodedImmFirst(OP_MOVT, hi16); location[-1] = twoWordOp5i6Imm4Reg4EncodedImmSecond((location[-1] >> 8) & 0xf, hi16); - ExecutableAllocator::cacheFlush(location - 4, 4 * sizeof(uint16_t)); + cacheFlush(location - 4, 4 * sizeof(uint16_t)); } static int32_t readInt32(void* code) @@ -2177,7 +2208,7 @@ private: uint16_t* location = reinterpret_cast<uint16_t*>(code); location[0] &= ~((static_cast<uint16_t>(0x7f) >> 2) << 6); location[0] |= (imm.getUInt7() >> 2) << 6; - ExecutableAllocator::cacheFlush(location, sizeof(uint16_t)); + cacheFlush(location, sizeof(uint16_t)); } static void setPointer(void* code, void* value) |