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/* Copyright (C) 2010 Wildfire Games.
*
* 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.
*/
/* udbg.cpp
This file contains debug helpers that are common for all unix systems. See
linux/ldbg.cpp for the linux-specific stuff (Using BFD and backtrace() for
symbol lookups and backtraces)
*/
#include "precompiled.h"
#include <cstdio>
#include <sys/types.h>
#include <signal.h>
#include "lib/timer.h"
#include "lib/sysdep/sysdep.h"
#include "lib/debug.h"
#include "lib/utf8.h"
Status debug_CaptureContext(void* UNUSED(context))
{
// (not needed unless/until we support stack traces)
return INFO::SKIPPED;
}
void debug_break()
{
kill(getpid(), SIGTRAP);
}
#define DEBUGGER_WAIT 3
#define DEBUGGER_CMD "gdb"
#define DEBUGGER_ARG_FORMAT "--pid=%d"
#define DEBUGGER_BREAK_AFTER_WAIT 0
/*
Start the debugger and tell it to attach to the current process/thread
(called by display_error)
*/
void udbg_launch_debugger()
{
pid_t orgpid=getpid();
pid_t ret=fork();
if (ret == 0)
{
// Child Process: exec() gdb (Debugger), set to attach to old fork
char buf[16];
snprintf(buf, 16, DEBUGGER_ARG_FORMAT, orgpid);
int ret=execlp(DEBUGGER_CMD, DEBUGGER_CMD, buf, NULL);
// In case of success, we should never get here anyway, though...
if (ret != 0)
{
perror("Debugger launch failed");
}
}
else if (ret > 0)
{
// Parent (original) fork:
debug_printf("Sleeping until debugger attaches.\nPlease wait.\n");
sleep(DEBUGGER_WAIT);
}
else // fork error, ret == -1
{
perror("Debugger launch: fork failed");
}
}
#if OS_ANDROID
#include <android/log.h>
void debug_puts(const char* text)
{
__android_log_print(ANDROID_LOG_WARN, "pyrogenesis", "%s", text);
}
#else
void debug_puts(const char* text)
{
printf("%s", text);
fflush(stdout);
}
#endif
int debug_IsPointerBogus(const void* UNUSED(p))
{
// TODO: maybe this should do some checks
return false;
}
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