diff options
Diffstat (limited to 'platform/linuxbsd/crash_handler_linuxbsd.cpp')
| -rw-r--r-- | platform/linuxbsd/crash_handler_linuxbsd.cpp | 104 |
1 files changed, 57 insertions, 47 deletions
diff --git a/platform/linuxbsd/crash_handler_linuxbsd.cpp b/platform/linuxbsd/crash_handler_linuxbsd.cpp index 8c8c8588b8..3a245460b4 100644 --- a/platform/linuxbsd/crash_handler_linuxbsd.cpp +++ b/platform/linuxbsd/crash_handler_linuxbsd.cpp @@ -1,32 +1,32 @@ -/*************************************************************************/ -/* crash_handler_linuxbsd.cpp */ -/*************************************************************************/ -/* This file is part of: */ -/* GODOT ENGINE */ -/* https://godotengine.org */ -/*************************************************************************/ -/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ -/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ -/* */ -/* 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 THE AUTHORS OR COPYRIGHT HOLDERS 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. */ -/*************************************************************************/ +/**************************************************************************/ +/* crash_handler_linuxbsd.cpp */ +/**************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/**************************************************************************/ +/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ +/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ +/* */ +/* 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 THE AUTHORS OR COPYRIGHT HOLDERS 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 "crash_handler_linuxbsd.h" @@ -44,6 +44,7 @@ #include <cxxabi.h> #include <dlfcn.h> #include <execinfo.h> +#include <link.h> #include <signal.h> #include <stdlib.h> @@ -79,7 +80,33 @@ static void handle_crash(int sig) { } print_error(vformat("Dumping the backtrace. %s", msg)); char **strings = backtrace_symbols(bt_buffer, size); + // PIE executable relocation, zero for non-PIE executables +#ifdef __GLIBC__ + // This is a glibc only thing apparently. + uintptr_t relocation = _r_debug.r_map->l_addr; +#else + // Non glibc systems apparently don't give PIE relocation info. + uintptr_t relocation = 0; +#endif //__GLIBC__ if (strings) { + List<String> args; + for (size_t i = 0; i < size; i++) { + char str[1024]; + snprintf(str, 1024, "%p", (void *)((uintptr_t)bt_buffer[i] - relocation)); + args.push_back(str); + } + args.push_back("-e"); + args.push_back(_execpath); + + // Try to get the file/line number using addr2line + int ret; + String output = ""; + Error err = OS::get_singleton()->execute(String("addr2line"), args, &output, &ret); + Vector<String> addr2line_results; + if (err == OK) { + addr2line_results = output.substr(0, output.length() - 1).split("\n", false); + } + for (size_t i = 1; i < size; i++) { char fname[1024]; Dl_info info; @@ -102,24 +129,7 @@ static void handle_crash(int sig) { } } - List<String> args; - - char str[1024]; - snprintf(str, 1024, "%p", bt_buffer[i]); - args.push_back(str); - args.push_back("-e"); - args.push_back(_execpath); - - String output = ""; - - // Try to get the file/line number using addr2line - int ret; - Error err = OS::get_singleton()->execute(String("addr2line"), args, &output, &ret); - if (err == OK) { - output = output.substr(0, output.length() - 1); - } - - print_error(vformat("[%d] %s (%s)", (int64_t)i, fname, output)); + print_error(vformat("[%d] %s (%s)", (int64_t)i, fname, err == OK ? addr2line_results[i] : "")); } free(strings); |