* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include "pipe/p_compiler.h"
#include "util/u_debug.h"
-#include "pipe/p_thread.h"
+#include "os/os_thread.h"
#include "util/u_memory.h"
#include "rtasm_execmem.h"
-#if defined(PIPE_OS_BSD)
+#ifndef MAP_ANONYMOUS
#define MAP_ANONYMOUS MAP_ANON
#endif
+#if defined(PIPE_OS_WINDOWS)
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN 1
+#endif
+#include <windows.h>
+#endif
-#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS)
+#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_HAIKU) || defined(PIPE_OS_CYGWIN)
/*
#include <unistd.h>
#include <sys/mman.h>
-#include "pipe/p_thread.h"
#include "util/u_mm.h"
#define EXEC_HEAP_SIZE (10*1024*1024)
static unsigned char *exec_mem = NULL;
-static void
+static int
init_heap(void)
{
if (!exec_heap)
exec_mem = (unsigned char *) mmap(0, EXEC_HEAP_SIZE,
PROT_EXEC | PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+ return (exec_mem != MAP_FAILED);
}
pipe_mutex_lock(exec_mutex);
- init_heap();
+ if (!init_heap())
+ goto bail;
if (exec_heap) {
size = (size + 31) & ~31; /* next multiple of 32 bytes */
addr = exec_mem + block->ofs;
else
debug_printf("rtasm_exec_malloc failed\n");
-
+
+bail:
pipe_mutex_unlock(exec_mutex);
return addr;
}
-#else /* PIPE_OS_LINUX || PIPE_OS_BSD || PIPE_OS_SOLARIS */
+#elif defined(PIPE_OS_WINDOWS)
+
+
+/*
+ * Avoid Data Execution Prevention.
+ */
+
+void *
+rtasm_exec_malloc(size_t size)
+{
+ return VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
+}
+
+
+void
+rtasm_exec_free(void *addr)
+{
+ VirtualFree(addr, 0, MEM_RELEASE);
+}
+
+
+#else
+
/*
* Just use regular memory.
}
-#endif /* PIPE_OS_LINUX || PIPE_OS_BSD || PIPE_OS_SOLARIS */
+#endif