diff options
Diffstat (limited to 'indra/llcommon/llstacktrace.cpp')
-rw-r--r-- | indra/llcommon/llstacktrace.cpp | 284 |
1 files changed, 142 insertions, 142 deletions
diff --git a/indra/llcommon/llstacktrace.cpp b/indra/llcommon/llstacktrace.cpp index 3cb074257b..6558df70a4 100644 --- a/indra/llcommon/llstacktrace.cpp +++ b/indra/llcommon/llstacktrace.cpp @@ -1,142 +1,142 @@ -/**
- * @file llstacktrace.cpp
- * @brief stack tracing functionality
- *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2009, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
-
-#include "linden_common.h"
-#include "llstacktrace.h"
-
-#ifdef LL_WINDOWS
-
-#include <iostream>
-#include <sstream>
-
-#include "windows.h"
-#include "Dbghelp.h"
-
-typedef USHORT NTAPI RtlCaptureStackBackTrace_Function(
- IN ULONG frames_to_skip,
- IN ULONG frames_to_capture,
- OUT PVOID *backtrace,
- OUT PULONG backtrace_hash);
-
-static RtlCaptureStackBackTrace_Function* const RtlCaptureStackBackTrace_fn =
- (RtlCaptureStackBackTrace_Function*)
- GetProcAddress(GetModuleHandleA("ntdll.dll"), "RtlCaptureStackBackTrace");
-
-bool ll_get_stack_trace(std::vector<std::string>& lines)
-{
- const S32 MAX_STACK_DEPTH = 32;
- const S32 STRING_NAME_LENGTH = 200;
- const S32 FRAME_SKIP = 2;
- static BOOL symbolsLoaded = false;
- static BOOL firstCall = true;
-
- HANDLE hProc = GetCurrentProcess();
-
- // load the symbols if they're not loaded
- if(!symbolsLoaded && firstCall)
- {
- symbolsLoaded = SymInitialize(hProc, NULL, true);
- firstCall = false;
- }
-
- // if loaded, get the call stack
- if(symbolsLoaded)
- {
- // create the frames to hold the addresses
- void* frames[MAX_STACK_DEPTH];
- memset(frames, 0, sizeof(void*)*MAX_STACK_DEPTH);
- S32 depth = 0;
-
- // get the addresses
- depth = RtlCaptureStackBackTrace_fn(FRAME_SKIP, MAX_STACK_DEPTH, frames, NULL);
-
- IMAGEHLP_LINE64 line;
- memset(&line, 0, sizeof(IMAGEHLP_LINE64));
- line.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
-
- // create something to hold address info
- PIMAGEHLP_SYMBOL64 pSym;
- pSym = (PIMAGEHLP_SYMBOL64)malloc(sizeof(IMAGEHLP_SYMBOL64) + STRING_NAME_LENGTH);
- memset(pSym, 0, sizeof(IMAGEHLP_SYMBOL64) + STRING_NAME_LENGTH);
- pSym->MaxNameLength = STRING_NAME_LENGTH;
- pSym->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL64);
-
- // get address info for each address frame
- // and store
- for(S32 i=0; i < depth; i++)
- {
- std::stringstream stack_line;
- BOOL ret;
-
- DWORD64 addr = (DWORD64)frames[i];
- ret = SymGetSymFromAddr64(hProc, addr, 0, pSym);
- if(ret)
- {
- stack_line << pSym->Name << " ";
- }
-
- DWORD dummy;
- ret = SymGetLineFromAddr64(hProc, addr, &dummy, &line);
- if(ret)
- {
- std::string file_name = line.FileName;
- std::string::size_type index = file_name.rfind("\\");
- stack_line << file_name.substr(index + 1, file_name.size()) << ":" << line.LineNumber;
- }
-
- lines.push_back(stack_line.str());
- }
-
- free(pSym);
-
- // TODO: figure out a way to cleanup symbol loading
- // Not hugely necessary, however.
- //SymCleanup(hProc);
- return true;
- }
- else
- {
- lines.push_back("Stack Trace Failed. PDB symbol info not loaded");
- }
-
- return false;
-}
-
-#else
-
-bool ll_get_stack_trace(std::vector<std::string>& lines)
-{
- return false;
-}
-
-#endif
-
+/** + * @file llstacktrace.cpp + * @brief stack tracing functionality + * + * $LicenseInfo:firstyear=2001&license=viewergpl$ + * + * Copyright (c) 2001-2009, Linden Research, Inc. + * + * Second Life Viewer Source Code + * The source code in this file ("Source Code") is provided by Linden Lab + * to you under the terms of the GNU General Public License, version 2.0 + * ("GPL"), unless you have obtained a separate licensing agreement + * ("Other License"), formally executed by you and Linden Lab. Terms of + * the GPL can be found in doc/GPL-license.txt in this distribution, or + * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 + * + * There are special exceptions to the terms and conditions of the GPL as + * it is applied to this Source Code. View the full text of the exception + * in the file doc/FLOSS-exception.txt in this software distribution, or + * online at + * http://secondlifegrid.net/programs/open_source/licensing/flossexception + * + * By copying, modifying or distributing this software, you acknowledge + * that you have read and understood your obligations described above, + * and agree to abide by those obligations. + * + * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO + * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, + * COMPLETENESS OR PERFORMANCE. + * $/LicenseInfo$ + */ + +#include "linden_common.h" +#include "llstacktrace.h" + +#ifdef LL_WINDOWS + +#include <iostream> +#include <sstream> + +#include "windows.h" +#include "Dbghelp.h" + +typedef USHORT NTAPI RtlCaptureStackBackTrace_Function( + IN ULONG frames_to_skip, + IN ULONG frames_to_capture, + OUT PVOID *backtrace, + OUT PULONG backtrace_hash); + +static RtlCaptureStackBackTrace_Function* const RtlCaptureStackBackTrace_fn = + (RtlCaptureStackBackTrace_Function*) + GetProcAddress(GetModuleHandleA("ntdll.dll"), "RtlCaptureStackBackTrace"); + +bool ll_get_stack_trace(std::vector<std::string>& lines) +{ + const S32 MAX_STACK_DEPTH = 32; + const S32 STRING_NAME_LENGTH = 200; + const S32 FRAME_SKIP = 2; + static BOOL symbolsLoaded = false; + static BOOL firstCall = true; + + HANDLE hProc = GetCurrentProcess(); + + // load the symbols if they're not loaded + if(!symbolsLoaded && firstCall) + { + symbolsLoaded = SymInitialize(hProc, NULL, true); + firstCall = false; + } + + // if loaded, get the call stack + if(symbolsLoaded) + { + // create the frames to hold the addresses + void* frames[MAX_STACK_DEPTH]; + memset(frames, 0, sizeof(void*)*MAX_STACK_DEPTH); + S32 depth = 0; + + // get the addresses + depth = RtlCaptureStackBackTrace_fn(FRAME_SKIP, MAX_STACK_DEPTH, frames, NULL); + + IMAGEHLP_LINE64 line; + memset(&line, 0, sizeof(IMAGEHLP_LINE64)); + line.SizeOfStruct = sizeof(IMAGEHLP_LINE64); + + // create something to hold address info + PIMAGEHLP_SYMBOL64 pSym; + pSym = (PIMAGEHLP_SYMBOL64)malloc(sizeof(IMAGEHLP_SYMBOL64) + STRING_NAME_LENGTH); + memset(pSym, 0, sizeof(IMAGEHLP_SYMBOL64) + STRING_NAME_LENGTH); + pSym->MaxNameLength = STRING_NAME_LENGTH; + pSym->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL64); + + // get address info for each address frame + // and store + for(S32 i=0; i < depth; i++) + { + std::stringstream stack_line; + BOOL ret; + + DWORD64 addr = (DWORD64)frames[i]; + ret = SymGetSymFromAddr64(hProc, addr, 0, pSym); + if(ret) + { + stack_line << pSym->Name << " "; + } + + DWORD dummy; + ret = SymGetLineFromAddr64(hProc, addr, &dummy, &line); + if(ret) + { + std::string file_name = line.FileName; + std::string::size_type index = file_name.rfind("\\"); + stack_line << file_name.substr(index + 1, file_name.size()) << ":" << line.LineNumber; + } + + lines.push_back(stack_line.str()); + } + + free(pSym); + + // TODO: figure out a way to cleanup symbol loading + // Not hugely necessary, however. + //SymCleanup(hProc); + return true; + } + else + { + lines.push_back("Stack Trace Failed. PDB symbol info not loaded"); + } + + return false; +} + +#else + +bool ll_get_stack_trace(std::vector<std::string>& lines) +{ + return false; +} + +#endif + |