diff options
Diffstat (limited to 'Source/JavaScriptCore/assembler/ARMAssembler.h')
| -rw-r--r-- | Source/JavaScriptCore/assembler/ARMAssembler.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/assembler/ARMAssembler.h b/Source/JavaScriptCore/assembler/ARMAssembler.h index a9ecf5091..16dc0cfc2 100644 --- a/Source/JavaScriptCore/assembler/ARMAssembler.h +++ b/Source/JavaScriptCore/assembler/ARMAssembler.h @@ -864,6 +864,42 @@ namespace JSC { return AL | B | (offset & BRANCH_MASK); } +#if OS(LINUX) && COMPILER(RVCT) + static __asm void cacheFlush(void* code, size_t); +#else + static void cacheFlush(void* code, size_t size) + { +#if OS(LINUX) && COMPILER(GCC) + uintptr_t currentPage = reinterpret_cast<uintptr_t>(code) & ~(pageSize() - 1); + uintptr_t lastPage = (reinterpret_cast<uintptr_t>(code) + size) & ~(pageSize() - 1); + do { + asm volatile( + "push {r7}\n" + "mov r0, %0\n" + "mov r1, %1\n" + "mov r7, #0xf0000\n" + "add r7, r7, #0x2\n" + "mov r2, #0x0\n" + "svc 0x0\n" + "pop {r7}\n" + : + : "r" (currentPage), "r" (currentPage + pageSize()) + : "r0", "r1", "r2"); + currentPage += pageSize(); + } while (lastPage >= currentPage); +#elif OS(WINCE) + CacheRangeFlush(code, size, CACHE_SYNC_ALL); +#elif OS(QNX) && ENABLE(ASSEMBLER_WX_EXCLUSIVE) + UNUSED_PARAM(code); + UNUSED_PARAM(size); +#elif OS(QNX) + msync(code, size, MS_INVALIDATE_ICACHE); +#else +#error "The cacheFlush support is missing on this platform." +#endif + } +#endif + private: ARMWord RM(int reg) { |