mirror of
https://gitea.wildfiregames.com/0ad/0ad
synced 2026-06-18 06:13:55 -07:00
9536f0a5cc
Revelead by the A23 crash when hosting a game in the lobby. We have a debug_break() call that calls "kill" with SIGTRAP, which generally doesn't get handled correctly in release versions, particularly on OSX. Differential Revision: https://code.wildfiregames.com/D1499 This was SVN commit r21998.
116 lines
2.9 KiB
C++
116 lines
2.9 KiB
C++
/* Copyright (C) 2010 Wildfire Games.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/* udbg.cpp
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This file contains debug helpers that are common for all unix systems. See
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linux/ldbg.cpp for the linux-specific stuff (Using BFD and backtrace() for
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symbol lookups and backtraces)
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*/
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#include "precompiled.h"
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#include <cstdio>
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#include <sys/types.h>
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#include <signal.h>
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#include "lib/timer.h"
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#include "lib/sysdep/sysdep.h"
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#include "lib/debug.h"
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#include "lib/utf8.h"
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Status debug_CaptureContext(void* UNUSED(context))
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{
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// (not needed unless/until we support stack traces)
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return INFO::SKIPPED;
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}
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void debug_break()
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{
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#ifndef NDEBUG
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kill(getpid(), SIGTRAP);
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#endif
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}
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#define DEBUGGER_WAIT 3
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#define DEBUGGER_CMD "gdb"
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#define DEBUGGER_ARG_FORMAT "--pid=%d"
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#define DEBUGGER_BREAK_AFTER_WAIT 0
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/*
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Start the debugger and tell it to attach to the current process/thread
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(called by display_error)
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*/
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void udbg_launch_debugger()
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{
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pid_t orgpid=getpid();
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pid_t ret=fork();
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if (ret == 0)
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{
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// Child Process: exec() gdb (Debugger), set to attach to old fork
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char buf[16];
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snprintf(buf, 16, DEBUGGER_ARG_FORMAT, orgpid);
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int ret=execlp(DEBUGGER_CMD, DEBUGGER_CMD, buf, NULL);
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// In case of success, we should never get here anyway, though...
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if (ret != 0)
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{
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perror("Debugger launch failed");
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}
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}
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else if (ret > 0)
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{
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// Parent (original) fork:
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debug_printf("Sleeping until debugger attaches.\nPlease wait.\n");
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sleep(DEBUGGER_WAIT);
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}
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else // fork error, ret == -1
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{
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perror("Debugger launch: fork failed");
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}
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}
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#if OS_ANDROID
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#include <android/log.h>
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void debug_puts(const char* text)
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{
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__android_log_print(ANDROID_LOG_WARN, "pyrogenesis", "%s", text);
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}
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#else
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void debug_puts(const char* text)
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{
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printf("%s", text);
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fflush(stdout);
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}
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#endif
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int debug_IsPointerBogus(const void* UNUSED(p))
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{
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// TODO: maybe this should do some checks
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return false;
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}
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