Merge remote branch 'origin/7.8'

[mesa.git] / src / gallium / auxiliary / rtasm / rtasm_execmem.c

diff --git a/src/gallium/auxiliary/rtasm/rtasm_execmem.c b/src/gallium/auxiliary/rtasm/rtasm_execmem.c
index 9c78fa56269b9eb2c82869747d1c866350ba04fd..65d5ce795bed1954d63e439afb87c6a04af1f9be 100644 (file)
--- a/src/gallium/auxiliary/rtasm/rtasm_execmem.c
+++ b/src/gallium/auxiliary/rtasm/rtasm_execmem.c
@@ -31,26 +31,39 @@
 
 
 #include "pipe/p_compiler.h"
-#include "pipe/p_debug.h"
-#include "pipe/p_thread.h"
+#include "util/u_debug.h"
+#include "os/os_thread.h"
+#include "util/u_memory.h"
 
 #include "rtasm_execmem.h"
 
+#if defined(PIPE_OS_BSD)
+#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(__linux__)
 
 /*
  * Allocate a large block of memory which can hold code then dole it out
  * in pieces by means of the generic memory manager code.
-*/
+ */
 
 #include <unistd.h>
 #include <sys/mman.h>
+#include "os/os_thread.h"
 #include "util/u_mm.h"
 
 #define EXEC_HEAP_SIZE (10*1024*1024)
 
-_glthread_DECLARE_STATIC_MUTEX(exec_mutex);
+pipe_static_mutex(exec_mutex);
 
 static struct mem_block *exec_heap = NULL;
 static unsigned char *exec_mem = NULL;
@@ -60,7 +73,7 @@ static void
 init_heap(void)
 {
    if (!exec_heap)
-      exec_heap = mmInit( 0, EXEC_HEAP_SIZE );
+      exec_heap = u_mmInit( 0, EXEC_HEAP_SIZE );
    
    if (!exec_mem)
       exec_mem = (unsigned char *) mmap(0, EXEC_HEAP_SIZE, 
@@ -75,13 +88,13 @@ rtasm_exec_malloc(size_t size)
    struct mem_block *block = NULL;
    void *addr = NULL;
 
-   _glthread_LOCK_MUTEX(exec_mutex);
+   pipe_mutex_lock(exec_mutex);
 
    init_heap();
 
    if (exec_heap) {
-      size = (size + 31) & ~31;
-      block = mmAllocMem( exec_heap, size, 32, 0 );
+      size = (size + 31) & ~31;  /* next multiple of 32 bytes */
+      block = u_mmAllocMem( exec_heap, size, 5, 0 ); /* 5 -> 32-byte alignment */
    }
 
    if (block)
@@ -89,7 +102,7 @@ rtasm_exec_malloc(size_t size)
    else 
       debug_printf("rtasm_exec_malloc failed\n");
    
-   _glthread_UNLOCK_MUTEX(exec_mutex);
+   pipe_mutex_unlock(exec_mutex);
    
    return addr;
 }
@@ -98,27 +111,49 @@ rtasm_exec_malloc(size_t size)
 void 
 rtasm_exec_free(void *addr)
 {
-   _glthread_LOCK_MUTEX(exec_mutex);
+   pipe_mutex_lock(exec_mutex);
 
    if (exec_heap) {
-      struct mem_block *block = mmFindBlock(exec_heap, (unsigned char *)addr - exec_mem);
+      struct mem_block *block = u_mmFindBlock(exec_heap, (unsigned char *)addr - exec_mem);
    
       if (block)
-        mmFreeMem(block);
+        u_mmFreeMem(block);
    }
 
-   _glthread_UNLOCK_MUTEX(exec_mutex);
+   pipe_mutex_unlock(exec_mutex);
+}
+
+
+#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.
  */
 
 void *
-rtasm_exec_malloc(GLuint size)
+rtasm_exec_malloc(size_t size)
 {
    return MALLOC( size );
 }