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authormarha <marha@users.sourceforge.net>2012-01-17 08:43:22 +0100
committermarha <marha@users.sourceforge.net>2012-01-17 08:43:22 +0100
commit34c1e86406451a3604de4982339058088434ab40 (patch)
tree4fb3258fa73a4b41cb7ab4e226ee7f072b151238 /mesalib/src/gallium/auxiliary/util/u_debug_stack.c
parent5cfbe97cd797d8f78ece208bb5114704b83d8aab (diff)
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git update mesa pixman xserver 17 jan 2012
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_debug_stack.c')
-rw-r--r--mesalib/src/gallium/auxiliary/util/u_debug_stack.c222
1 files changed, 112 insertions, 110 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_debug_stack.c b/mesalib/src/gallium/auxiliary/util/u_debug_stack.c
index 046bb43b1..558b911f2 100644
--- a/mesalib/src/gallium/auxiliary/util/u_debug_stack.c
+++ b/mesalib/src/gallium/auxiliary/util/u_debug_stack.c
@@ -1,110 +1,112 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * 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 NON-INFRINGEMENT.
- * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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.
- *
- **************************************************************************/
-
-/**
- * @file
- * Stack backtracing.
- *
- * @author Jose Fonseca <jfonseca@vmware.com>
- */
-
-#include "u_debug.h"
-#include "u_debug_symbol.h"
-#include "u_debug_stack.h"
-
-
-void
-debug_backtrace_capture(struct debug_stack_frame *backtrace,
- unsigned start_frame,
- unsigned nr_frames)
-{
- const void **frame_pointer = NULL;
- unsigned i = 0;
-
- if(!nr_frames)
- return;
-
-#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
- __asm__ __volatile__("mov (%%ebp),%0": "=r" (frame_pointer));
- frame_pointer = (const void **)frame_pointer[0];
-#elif defined(PIPE_CC_GCC)
- frame_pointer = ((const void **)__builtin_frame_address(1));
-#elif defined(PIPE_CC_MSVC) && defined(PIPE_ARCH_X86)
- __asm {
- mov frame_pointer, ebp
- }
- frame_pointer = (const void **)frame_pointer[0];
-#else
- frame_pointer = NULL;
-#endif
-
-
-#ifdef PIPE_ARCH_X86
- while(nr_frames) {
- const void **next_frame_pointer;
-
- if(!frame_pointer)
- break;
-
- if(start_frame)
- --start_frame;
- else {
- backtrace[i++].function = frame_pointer[1];
- --nr_frames;
- }
-
- next_frame_pointer = (const void **)frame_pointer[0];
-
- /* Limit the stack walk to avoid referencing undefined memory */
- if((uintptr_t)next_frame_pointer <= (uintptr_t)frame_pointer ||
- (uintptr_t)next_frame_pointer > (uintptr_t)frame_pointer + 64*1024)
- break;
-
- frame_pointer = next_frame_pointer;
- }
-#endif
-
- while(nr_frames) {
- backtrace[i++].function = NULL;
- --nr_frames;
- }
-}
-
-
-void
-debug_backtrace_dump(const struct debug_stack_frame *backtrace,
- unsigned nr_frames)
-{
- unsigned i;
-
- for(i = 0; i < nr_frames; ++i) {
- if(!backtrace[i].function)
- break;
- debug_symbol_print(backtrace[i].function);
- }
-}
-
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+/**
+ * @file
+ * Stack backtracing.
+ *
+ * @author Jose Fonseca <jfonseca@vmware.com>
+ */
+
+#include "u_debug.h"
+#include "u_debug_symbol.h"
+#include "u_debug_stack.h"
+
+
+void
+debug_backtrace_capture(struct debug_stack_frame *backtrace,
+ unsigned start_frame,
+ unsigned nr_frames)
+{
+ const void **frame_pointer = NULL;
+ unsigned i = 0;
+
+ if(!nr_frames)
+ return;
+
+#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
+ __asm__ __volatile__("mov (%%ebp),%0": "=r" (frame_pointer));
+ frame_pointer = (const void **)frame_pointer[0];
+#elif defined(PIPE_CC_GCC)
+ frame_pointer = ((const void **)__builtin_frame_address(1));
+#elif defined(PIPE_CC_MSVC) && defined(PIPE_ARCH_X86)
+ __asm {
+ mov frame_pointer, ebp
+ }
+ frame_pointer = (const void **)frame_pointer[0];
+#else
+ frame_pointer = NULL;
+#endif
+
+
+#ifdef PIPE_ARCH_X86
+ while(nr_frames) {
+ const void **next_frame_pointer;
+
+ if(!frame_pointer)
+ break;
+
+ if(start_frame)
+ --start_frame;
+ else {
+ backtrace[i++].function = frame_pointer[1];
+ --nr_frames;
+ }
+
+ next_frame_pointer = (const void **)frame_pointer[0];
+
+ /* Limit the stack walk to avoid referencing undefined memory */
+ if((uintptr_t)next_frame_pointer <= (uintptr_t)frame_pointer ||
+ (uintptr_t)next_frame_pointer > (uintptr_t)frame_pointer + 64*1024)
+ break;
+
+ frame_pointer = next_frame_pointer;
+ }
+#else
+ (void) frame_pointer;
+#endif
+
+ while(nr_frames) {
+ backtrace[i++].function = NULL;
+ --nr_frames;
+ }
+}
+
+
+void
+debug_backtrace_dump(const struct debug_stack_frame *backtrace,
+ unsigned nr_frames)
+{
+ unsigned i;
+
+ for(i = 0; i < nr_frames; ++i) {
+ if(!backtrace[i].function)
+ break;
+ debug_symbol_print(backtrace[i].function);
+ }
+}
+