+++ /dev/null
-/*
- * Copyright (C) 2006 Thomas Sondergaard 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, sublicense,
- * 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 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 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.
- */
-
-#include "gltrace_support.h"
-#include <cstdlib>
-#include <cstring>
-#include <assert.h>
-#include <sstream>
-#include <fstream>
-#include <iomanip>
-#include <execinfo.h>
-#include <cxxabi.h>
-#include <sys/time.h>
-
-namespace {
-
- const char *
- demangle (const char * mangled) throw()
- {
- static char buf[4096];
- int status;
- size_t length = sizeof(buf)-1;
-
- memset (buf, 0, sizeof(buf));
-
- if (!mangled)
- return 0;
-
- char * demangled = __cxxabiv1::__cxa_demangle(mangled,
- buf,
- &length,
- &status);
- if (demangled && !status)
- return demangled;
- else
- return mangled;
- }
-
- void
- printStackTrace (void **stackframes,
- int stackframe_size,
- std::ostream & out )
- {
- char **strings = 0;
- std::stringstream ss;
-
- // this might actually fail if memory is tight or we are in a
- // signal handler
- strings = backtrace_symbols (stackframes, stackframe_size);
-
- ss << "Backtrace :";
-
- if (stackframe_size == gltrace::MAX_STACKFRAMES)
- ss << "(possibly incomplete maximal number of frames exceeded):" << std::endl;
- else
- ss << std::endl;
-
- out << ss.str();
-
- // the first frame is the constructor of the exception
- // the last frame always seem to be bogus?
- for (int i = 0; strings && i < stackframe_size-1; ++i) {
- char libname[257], funcname[2049];
- unsigned int address=0, funcoffset = 0x0;
-
- memset (libname,0,sizeof(libname));
- memset (funcname,0,sizeof(funcname));
-
- strcpy (funcname,"??");
- strcpy (libname, "??");
-
- int scanned = sscanf (strings[i], "%256[^(] ( %2048[^+] + %x ) [ %x ]",
- libname,
- funcname,
- &funcoffset,
- &address);
-
- /* ok, so no function was mentioned in the backtrace */
- if (scanned < 4) {
- scanned = sscanf (strings[i], "%256[^([] [ %x ]",
- libname,
- &address);
- }
-
- if (funcname[0] == '_') {
- const char * demangled;
- if ((demangled = demangle(funcname) ) != funcname) {
- strncpy (funcname, demangled, sizeof(funcname)-1);
- }
- }
- else
- strcat (funcname," ()");
-
- out << "\t#" << i << std::hex << " 0x" << address << " in " << funcname
- << " at 0x" << funcoffset << " (from " << libname << ")" << std::endl;
- }
-
- free (strings);
- }
-
-
-} // anon namespace
-
-namespace gltrace {
-
- std::string getStackTrace(int count, int first) {
- ++first;
- std::stringstream ss;
- const int BA_MAX = 1000;
- assert(count + first <= BA_MAX);
- void *ba[BA_MAX];
- int n = backtrace(ba, count+first);
-
- printStackTrace( &ba[first], n-first, ss);
-
- return ss.str();
- }
-
- std::ostream &timeNow(std::ostream &os) {
-
- struct timeval now;
- struct tm t;
- static char const *months[12] =
- {
- "Jan", "Feb", "Mar", "Apr", "May", "Jun",
- "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
- };
-
- gettimeofday (&now, 0);
- localtime_r ((time_t*) &now.tv_sec, &t);
-
- os
- << months[t.tm_mon] << " "
- << std::setw(2) << t.tm_mday << " "
- << std::setw(2) << t.tm_hour << ":"
- << std::setw(2) << t.tm_min << ":"
- << std::setw(2) << t.tm_sec << "."
- << std::setw(3) << now.tv_usec/1000;
- return os;
- }
-
- logstream::logstream(const char *filename) {
- if (!filename)
- init(std::cerr.rdbuf());
- else {
- file_os.reset(new std::ofstream(filename));
- if (file_os->good())
- init(file_os->rdbuf());
- else {
- std::cerr << "ERROR: gltrace: Failed to open '" << filename
- << "' for writing. Falling back to stderr." << std::endl;
- init(std::cerr.rdbuf());
- }
- }
- *this << std::setfill('0'); // setw used in timeNow
- }
-
-
- Config::Config() :
- logCalls(true),
- checkErrors(true),
- logTime(true),
- log(getenv("GLTRACE_LOGFILE")) {
- if (const char *v = getenv("GLTRACE_LOG_CALLS"))
- logCalls = strncmp("1", v, 1) == 0;
- if (const char *v = getenv("GLTRACE_CHECK_ERRORS"))
- checkErrors = strncmp("1", v, 1) == 0;
- if (const char *v = getenv("GLTRACE_LOG_TIME"))
- logTime = strncmp("1", v, 1) == 0;
- }
-
- // *The* config
- Config config;
-
-} // namespace gltrace
projects / mesa.git / blobdiff