mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
894487e422
--HG-- extra : convert_revision : 353c06e32329377cc9ed5f66eeb6bcaf72ff3aea
185 lines
5.2 KiB
C++
185 lines
5.2 KiB
C++
/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 4 -*- */
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/* vi: set ts=4 sw=4 expandtab: (add to ~/.vimrc: set modeline modelines=5) */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1 (the
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* "License"); you may not use this file except in compliance with the License. You may obtain
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* a copy of the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
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* WARRANTY OF ANY KIND, either express or implied. See the License for the specific
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* language governing rights and limitations under the License.
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*
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* The Original Code is [Open Source Virtual Machine.]
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*
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* The Initial Developer of the Original Code is Adobe System Incorporated. Portions created
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* by the Initial Developer are Copyright (C)[ 2004-2006 ] Adobe Systems Incorporated. All Rights
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* Reserved.
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*
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* Contributor(s): Adobe AS3 Team
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* Andreas Gal <gal@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of either the GNU
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* General Public License Version 2 or later (the "GPL"), or the GNU Lesser General Public
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* License Version 2.1 or later (the "LGPL"), in which case the provisions of the GPL or the
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* LGPL are applicable instead of those above. If you wish to allow use of your version of this
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* file only under the terms of either the GPL or the LGPL, and not to allow others to use your
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* version of this file under the terms of the MPL, indicate your decision by deleting provisions
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* above and replace them with the notice and other provisions required by the GPL or the
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* LGPL. If you do not delete the provisions above, a recipient may use your version of this file
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* under the terms of any one of the MPL, the GPL or the LGPL.
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*
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***** END LICENSE BLOCK ***** */
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#include "nanojit.h"
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#ifdef SOLARIS
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typedef caddr_t maddr_ptr;
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#else
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typedef void *maddr_ptr;
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#endif
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#if defined(AVMPLUS_ARM) && defined(UNDER_CE)
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extern "C" bool
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blx_lr_broken() {
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return false;
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}
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#endif
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using namespace avmplus;
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nanojit::Config AvmCore::config;
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void
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avmplus::AvmLog(char const *msg, ...) {
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va_list ap;
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va_start(ap, msg);
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VMPI_vfprintf(stderr, msg, ap);
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va_end(ap);
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}
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#ifdef _DEBUG
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void NanoAssertFail()
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{
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#if defined(WIN32)
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DebugBreak();
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exit(3);
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#elif defined(XP_OS2) || (defined(__GNUC__) && defined(__i386))
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asm("int $3");
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abort();
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#else
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abort();
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#endif
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}
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#endif
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#ifdef WINCE
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// Due to the per-process heap slots on Windows Mobile, we can often run in to OOM
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// situations. jemalloc has worked around this problem, and so we use it here.
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// Using posix_memalign (or other malloc)functions) here only works because the OS
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// and hardware doesn't check for the execute bit being set.
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#ifndef MOZ_MEMORY
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#error MOZ_MEMORY required for building on WINCE
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#endif
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void*
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nanojit::CodeAlloc::allocCodeChunk(size_t nbytes) {
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void * buffer;
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posix_memalign(&buffer, 4096, nbytes);
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VMPI_setPageProtection(buffer, nbytes, true /* exec */, true /* write */);
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return buffer;
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}
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void
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nanojit::CodeAlloc::freeCodeChunk(void *p, size_t nbytes) {
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VMPI_setPageProtection(p, nbytes, false /* exec */, true /* write */);
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::free(p);
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}
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#elif defined(WIN32)
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void*
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nanojit::CodeAlloc::allocCodeChunk(size_t nbytes) {
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return VirtualAlloc(NULL,
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nbytes,
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MEM_COMMIT | MEM_RESERVE,
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PAGE_EXECUTE_READWRITE);
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}
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void
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nanojit::CodeAlloc::freeCodeChunk(void *p, size_t) {
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VirtualFree(p, 0, MEM_RELEASE);
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}
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#elif defined(AVMPLUS_OS2)
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void*
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nanojit::CodeAlloc::allocCodeChunk(size_t nbytes) {
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// alloc from high memory, fallback to low memory if that fails
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void * addr;
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if (DosAllocMem(&addr, nbytes, OBJ_ANY |
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PAG_COMMIT | PAG_READ | PAG_WRITE | PAG_EXECUTE)) {
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if (DosAllocMem(&addr, nbytes,
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PAG_COMMIT | PAG_READ | PAG_WRITE | PAG_EXECUTE)) {
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return 0;
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}
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}
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return addr;
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}
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void
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nanojit::CodeAlloc::freeCodeChunk(void *p, size_t nbytes) {
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DosFreeMem(p);
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}
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#elif defined(AVMPLUS_UNIX)
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void*
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nanojit::CodeAlloc::allocCodeChunk(size_t nbytes) {
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return mmap(NULL,
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nbytes,
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PROT_READ | PROT_WRITE | PROT_EXEC,
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MAP_PRIVATE | MAP_ANON,
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-1,
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0);
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}
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void
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nanojit::CodeAlloc::freeCodeChunk(void *p, size_t nbytes) {
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munmap((maddr_ptr)p, nbytes);
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}
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#else // !WIN32 && !AVMPLUS_OS2 && !AVMPLUS_UNIX
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void*
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nanojit::CodeAlloc::allocCodeChunk(size_t nbytes) {
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void* mem = valloc(nbytes);
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VMPI_setPageProtection(mem, nbytes, true /* exec */, true /* write */);
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return mem;
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}
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void
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nanojit::CodeAlloc::freeCodeChunk(void *p, size_t nbytes) {
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VMPI_setPageProtection(p, nbytes, false /* exec */, true /* write */);
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::free(p);
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}
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#endif // WIN32
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// All of the allocCodeChunk/freeCodeChunk implementations above allocate
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// code memory as RWX and then free it, so the explicit page protection api's
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// below are no-ops.
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void
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nanojit::CodeAlloc::markCodeChunkWrite(void*, size_t)
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{}
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void
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nanojit::CodeAlloc::markCodeChunkExec(void*, size_t)
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{}
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