| /* |
| * Copyright (C) 2008 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "assembler/jit/ExecutableAllocator.h" |
| |
| #if ENABLE_ASSEMBLER && WTF_OS_STARBOARD |
| |
| #include "assembler/wtf/Assertions.h" |
| #include "assembler/wtf/VMTags.h" |
| |
| #include "starboard/log.h" |
| #include "starboard/memory.h" |
| #include "starboard/system.h" |
| |
| namespace JSC { |
| |
| size_t ExecutableAllocator::determinePageSize() |
| { |
| return SB_MEMORY_PAGE_SIZE; |
| } |
| |
| ExecutablePool::Allocation ExecutableAllocator::systemAlloc(size_t n) |
| { |
| int flags = kSbMemoryMapProtectRead | kSbMemoryMapProtectWrite | kSbMemoryMapProtectExec; |
| void* allocation = SbMemoryMap(n, flags, "ExecutableAllocator"); |
| if (allocation == SB_MEMORY_MAP_FAILED) |
| { |
| SbSystemBreakIntoDebugger(); |
| allocation = NULL; |
| } |
| ExecutablePool::Allocation alloc = { reinterpret_cast<char*>(allocation), n }; |
| return alloc; |
| } |
| |
| void ExecutableAllocator::systemRelease(const ExecutablePool::Allocation& alloc) |
| { |
| bool result = SbMemoryUnmap(alloc.pages, alloc.size); |
| ASSERT_UNUSED(result, result); |
| } |
| |
| #if WTF_CPU_ARM_TRADITIONAL && WTF_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) |
