svn merge ^/branches/released .

1 files changed, 243 insertions, 0 deletions

diff --git a/mesalib/src/gallium/auxiliary/util/u_debug_symbol.c b/mesalib/src/gallium/auxiliary/util/u_debug_symbol.c
new file mode 100644
index 000000000..b2f762c66
--- /dev/null
+++ b/mesalib/src/gallium/auxiliary/util/u_debug_symbol.c
@@ -0,0 +1,243 @@
+/**************************************************************************

+ * 

+ * 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

+ * Symbol lookup.

+ * 

+ * @author Jose Fonseca <jfonseca@vmware.com>

+ */

+

+#include "pipe/p_compiler.h"

+#include "os/os_thread.h"

+#include "u_string.h"

+

+#include "u_debug.h"

+#include "u_debug_symbol.h"

+#include "u_hash_table.h"

+

+#if defined(PIPE_OS_WINDOWS) && defined(PIPE_ARCH_X86)

+   

+#include <windows.h>

+#include <stddef.h>

+

+#include "dbghelp.h"

+

+

+static BOOL bSymInitialized = FALSE;

+

+static HMODULE hModule_Dbghelp = NULL;

+

+

+static

+FARPROC WINAPI __GetProcAddress(LPCSTR lpProcName)

+{

+#ifdef PIPE_CC_GCC

+   if (!hModule_Dbghelp) {

+      /*

+       * bfdhelp.dll is a dbghelp.dll look-alike replacement, which is able to

+       * understand MinGW symbols using BFD library.  It is available from

+       * http://people.freedesktop.org/~jrfonseca/bfdhelp/ for now.

+       */

+      hModule_Dbghelp = LoadLibraryA("bfdhelp.dll");

+   }

+#endif

+

+   if (!hModule_Dbghelp) {

+      hModule_Dbghelp = LoadLibraryA("dbghelp.dll");

+      if (!hModule_Dbghelp) {

+         return NULL;

+      }

+   }

+

+   return GetProcAddress(hModule_Dbghelp, lpProcName);

+}

+

+

+typedef BOOL (WINAPI *PFNSYMINITIALIZE)(HANDLE, LPSTR, BOOL);

+static PFNSYMINITIALIZE pfnSymInitialize = NULL;

+

+static

+BOOL WINAPI j_SymInitialize(HANDLE hProcess, PSTR UserSearchPath, BOOL fInvadeProcess)

+{

+   if(

+      (pfnSymInitialize || (pfnSymInitialize = (PFNSYMINITIALIZE) __GetProcAddress("SymInitialize")))

+   )

+      return pfnSymInitialize(hProcess, UserSearchPath, fInvadeProcess);

+   else

+      return FALSE;

+}

+

+typedef DWORD (WINAPI *PFNSYMSETOPTIONS)(DWORD);

+static PFNSYMSETOPTIONS pfnSymSetOptions = NULL;

+

+static

+DWORD WINAPI j_SymSetOptions(DWORD SymOptions)

+{

+   if(

+      (pfnSymSetOptions || (pfnSymSetOptions = (PFNSYMSETOPTIONS) __GetProcAddress("SymSetOptions")))

+   )

+      return pfnSymSetOptions(SymOptions);

+   else

+      return FALSE;

+}

+

+typedef BOOL (WINAPI *PFNSYMGETSYMFROMADDR)(HANDLE, DWORD64, PDWORD64, PSYMBOL_INFO);

+static PFNSYMGETSYMFROMADDR pfnSymFromAddr = NULL;

+

+static

+BOOL WINAPI j_SymFromAddr(HANDLE hProcess, DWORD64 Address, PDWORD64 Displacement, PSYMBOL_INFO Symbol)

+{

+   if(

+      (pfnSymFromAddr || (pfnSymFromAddr = (PFNSYMGETSYMFROMADDR) __GetProcAddress("SymFromAddr")))

+   )

+      return pfnSymFromAddr(hProcess, Address, Displacement, Symbol);

+   else

+      return FALSE;

+}

+

+

+static INLINE void

+debug_symbol_name_dbghelp(const void *addr, char* buf, unsigned size)

+{

+   HANDLE hProcess;

+   BYTE symbolBuffer[1024];

+   PSYMBOL_INFO pSymbol = (PSYMBOL_INFO) symbolBuffer;

+   DWORD64 dwDisplacement = 0;  /* Displacement of the input address, relative to the start of the symbol */

+

+   hProcess = GetCurrentProcess();

+

+   memset(pSymbol, 0, sizeof *pSymbol);

+   pSymbol->SizeOfStruct = sizeof(symbolBuffer);

+   pSymbol->MaxNameLen = sizeof(symbolBuffer) - offsetof(SYMBOL_INFO, Name);

+

+   if(!bSymInitialized) {

+      j_SymSetOptions(/* SYMOPT_UNDNAME | */ SYMOPT_LOAD_LINES);

+      if(j_SymInitialize(hProcess, NULL, TRUE))

+         bSymInitialized = TRUE;

+   }

+

+   if(!j_SymFromAddr(hProcess, (DWORD64)(uintptr_t)addr, &dwDisplacement, pSymbol))

+      buf[0] = 0;

+   else

+   {

+      strncpy(buf, pSymbol->Name, size);

+      buf[size - 1] = 0;

+   }

+}

+#endif

+

+#ifdef __GLIBC__

+#include <execinfo.h>

+

+/* This can only provide dynamic symbols, or binary offsets into a file.

+ *

+ * To fix this, post-process the output with tools/addr2line.sh

+ */

+static INLINE void

+debug_symbol_name_glibc(const void *addr, char* buf, unsigned size)

+{

+   char** syms = backtrace_symbols((void**)&addr, 1);

+   strncpy(buf, syms[0], size);

+   buf[size - 1] = 0;

+   free(syms);

+}

+#endif

+

+void

+debug_symbol_name(const void *addr, char* buf, unsigned size)

+{

+#if defined(PIPE_OS_WINDOWS) && defined(PIPE_ARCH_X86)

+   debug_symbol_name_dbghelp(addr, buf, size);

+   if(buf[0])

+      return;

+#endif

+

+#ifdef __GLIBC__

+   debug_symbol_name_glibc(addr, buf, size);

+   if(buf[0])

+      return;

+#endif

+

+   util_snprintf(buf, size, "%p", addr);

+   buf[size - 1] = 0;

+}

+

+void

+debug_symbol_print(const void *addr)

+{

+   char buf[1024];

+   debug_symbol_name(addr, buf, sizeof(buf));

+   debug_printf("\t%s\n", buf);

+}

+

+struct util_hash_table* symbols_hash;

+pipe_static_mutex(symbols_mutex);

+

+static unsigned hash_ptr(void* p)

+{

+   return (unsigned)(uintptr_t)p;

+}

+

+static int compare_ptr(void* a, void* b)

+{

+   if(a == b)

+      return 0;

+   else if(a < b)

+      return -1;

+   else

+      return 1;

+}

+

+const char*

+debug_symbol_name_cached(const void *addr)

+{

+   const char* name;

+#ifdef PIPE_SUBSYSTEM_WINDOWS_USER

+   static boolean first = TRUE;

+

+   if (first) {

+      pipe_mutex_init(symbols_mutex);

+      first = FALSE;

+   }

+#endif

+

+   pipe_mutex_lock(symbols_mutex);

+   if(!symbols_hash)

+      symbols_hash = util_hash_table_create(hash_ptr, compare_ptr);

+   name = util_hash_table_get(symbols_hash, (void*)addr);

+   if(!name)

+   {

+      char buf[1024];

+      debug_symbol_name(addr, buf, sizeof(buf));

+      name = strdup(buf);

+

+      util_hash_table_set(symbols_hash, (void*)addr, (void*)name);

+   }

+   pipe_mutex_unlock(symbols_mutex);

+   return name;

+}