X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=src%2Flibmemcached%2Fbacktrace.cc;h=7580d579f5dbe375c7cb6882ee4cee3f76fa5a46;hb=refs%2Fheads%2Fv1.x;hp=8017f7a2f0437404ca37b0d39d94aca8fa2f9caa;hpb=7e2b466107a65e22f1cc258ca8643922dbb60352;p=awesomized%2Flibmemcached diff --git a/src/libmemcached/backtrace.cc b/src/libmemcached/backtrace.cc index 8017f7a2..7580d579 100644 --- a/src/libmemcached/backtrace.cc +++ b/src/libmemcached/backtrace.cc @@ -1,39 +1,17 @@ -/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab: - * - * Libmemcached client library. - * - * Copyright (C) 2012 Data Differential, http://datadifferential.com/ - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * - * * The names of its contributors may not be used to endorse or - * promote products derived from this software without specific prior - * written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ +/* + +--------------------------------------------------------------------+ + | libmemcached-awesome - C/C++ Client Library for memcached | + +--------------------------------------------------------------------+ + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted under the terms of the BSD license. | + | You should have received a copy of the license in a bundled file | + | named LICENSE; in case you did not receive a copy you can review | + | the terms online at: https://opensource.org/licenses/BSD-3-Clause | + +--------------------------------------------------------------------+ + | Copyright (c) 2006-2014 Brian Aker https://datadifferential.com/ | + | Copyright (c) 2020-2021 Michael Wallner https://awesome.co/ | + +--------------------------------------------------------------------+ +*/ #include "mem_config.h" @@ -45,70 +23,55 @@ #if HAVE_BACKTRACE -#include BACKTRACE_HEADER - -#if HAVE_ABI____CXA_DEMANGLE -# include -# define USE_DEMANGLE 1 -#else -# define USE_DEMANGLE 0 -#endif - -#ifdef HAVE_DLFCN_H -# include -#endif - -const int MAX_DEPTH= 50; - -void custom_backtrace(void) -{ - void *backtrace_buffer[MAX_DEPTH +1]; - - int stack_frames= backtrace(backtrace_buffer, MAX_DEPTH); - if (stack_frames) - { - char **symbollist= backtrace_symbols(backtrace_buffer, stack_frames); - if (symbollist) - { - for (int x= 0; x < stack_frames; x++) - { - bool was_demangled= false; - - if (USE_DEMANGLE) - { -#ifdef HAVE_DLFCN_H +# include BACKTRACE_HEADER + +# ifdef HAVE_ABI____CXA_DEMANGLE +# include +# endif + +# ifdef HAVE_DLFCN_H +# include +# endif + +const int MAX_DEPTH = 50; + +void custom_backtrace(void) { + void *backtrace_buffer[MAX_DEPTH + 1]; + + int stack_frames = backtrace(backtrace_buffer, MAX_DEPTH); + if (stack_frames) { + char **symbollist = backtrace_symbols(backtrace_buffer, stack_frames); + if (symbollist) { + for (int x = 0; x < stack_frames; x++) { + bool was_demangled = false; + +# ifdef HAVE_ABI____CXA_DEMANGLE +# ifdef HAVE_DLFCN_H Dl_info dlinfo; - if (dladdr(backtrace_buffer[x], &dlinfo)) - { + if (dladdr(backtrace_buffer[x], &dlinfo)) { char demangled_buffer[1024]; - const char *called_in= ""; - if (dlinfo.dli_sname) - { - size_t demangled_size= sizeof(demangled_buffer); + const char *called_in = ""; + if (dlinfo.dli_sname) { + size_t demangled_size = sizeof(demangled_buffer); int status; - char* demangled; - if ((demangled= abi::__cxa_demangle(dlinfo.dli_sname, demangled_buffer, &demangled_size, &status))) - { - called_in= demangled; + char *demangled; + if ((demangled = abi::__cxa_demangle(dlinfo.dli_sname, demangled_buffer, + &demangled_size, &status))) { + called_in = demangled; fprintf(stderr, "---> demangled: %s -> %s\n", demangled_buffer, demangled); - } - else - { - called_in= dlinfo.dli_sname; + } else { + called_in = dlinfo.dli_sname; } - was_demangled= true; - fprintf(stderr, "#%d %p in %s at %s\n", - x, backtrace_buffer[x], - called_in, + was_demangled = true; + fprintf(stderr, "#%d %p in %s at %s\n", x, backtrace_buffer[x], called_in, dlinfo.dli_fname); } } -#endif - } +# endif +# endif - if (was_demangled == false) - { + if (was_demangled == false) { fprintf(stderr, "?%d %p in %s\n", x, backtrace_buffer[x], symbollist[x]); } } @@ -118,10 +81,9 @@ void custom_backtrace(void) } } -#else // HAVE_BACKTRACE +#else // HAVE_BACKTRACE -void custom_backtrace(void) -{ +void custom_backtrace(void) { fprintf(stderr, "Backtrace null function called\n"); } #endif // HAVE_BACKTRACE