diff options
Diffstat (limited to 'JavaScriptCore/jit/ExecutableAllocatorPosix.cpp')
| -rw-r--r-- | JavaScriptCore/jit/ExecutableAllocatorPosix.cpp | 42 |
1 files changed, 1 insertions, 41 deletions
diff --git a/JavaScriptCore/jit/ExecutableAllocatorPosix.cpp b/JavaScriptCore/jit/ExecutableAllocatorPosix.cpp index eee8a7e..b04049c 100644 --- a/JavaScriptCore/jit/ExecutableAllocatorPosix.cpp +++ b/JavaScriptCore/jit/ExecutableAllocatorPosix.cpp @@ -27,7 +27,7 @@ #include "ExecutableAllocator.h" -#if ENABLE(ASSEMBLER) && OS(UNIX) && !OS(SYMBIAN) +#if ENABLE(EXECUTABLE_ALLOCATOR_DEMAND) && !OS(WINDOWS) && !OS(SYMBIAN) #include <sys/mman.h> #include <unistd.h> @@ -35,8 +35,6 @@ namespace JSC { -#if !(OS(DARWIN) && CPU(X86_64)) - void ExecutableAllocator::intializePageSize() { ExecutableAllocator::pageSize = getpagesize(); @@ -57,44 +55,6 @@ void ExecutablePool::systemRelease(const ExecutablePool::Allocation& alloc) ASSERT_UNUSED(result, !result); } -#endif // !(OS(DARWIN) && CPU(X86_64)) - -#if ENABLE(ASSEMBLER_WX_EXCLUSIVE) -void ExecutableAllocator::reprotectRegion(void* start, size_t size, ProtectionSeting setting) -{ - if (!pageSize) - intializePageSize(); - - // Calculate the start of the page containing this region, - // and account for this extra memory within size. - intptr_t startPtr = reinterpret_cast<intptr_t>(start); - intptr_t pageStartPtr = startPtr & ~(pageSize - 1); - void* pageStart = reinterpret_cast<void*>(pageStartPtr); - size += (startPtr - pageStartPtr); - - // Round size up - size += (pageSize - 1); - size &= ~(pageSize - 1); - - mprotect(pageStart, size, (setting == Writable) ? PROTECTION_FLAGS_RW : PROTECTION_FLAGS_RX); } -#endif -#if CPU(ARM_TRADITIONAL) && OS(LINUX) && COMPILER(RVCT) -__asm void ExecutableAllocator::cacheFlush(void* code, size_t size) -{ - ARM - push {r7} - add r1, r1, r0 - mov r7, #0xf0000 - add r7, r7, #0x2 - mov r2, #0x0 - svc #0x0 - pop {r7} - bx lr -} #endif - -} - -#endif // HAVE(ASSEMBLER) |