0ad/source/lib/sysdep/os/unix/udbg.cpp
Ykkrosh f4625e69af Partial Android compatibility.
Remove unnecessary VM allocation (which seemingly causes problems on
Android due to mmap during static initialization).
Allow building without NVTT.

This was SVN commit r11074.
2012-02-15 13:58:58 +00:00

118 lines
3.1 KiB
C++

/* 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(L"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 wchar_t* text)
{
// The Android logger doesn't like "%ls" format strings, so convert
// the message to UTF-8 before outputting
Status err;
std::string str = utf8_from_wstring(text, &err);
__android_log_print(ANDROID_LOG_WARN, "pyrogenesis", "%s", str.c_str());
}
#else
void debug_puts(const wchar_t* text)
{
printf("%ls", text); // must not use printf, since stdout is byte-oriented
fflush(stdout);
}
#endif
int debug_IsPointerBogus(const void* UNUSED(p))
{
// TODO: maybe this should do some checks
return false;
}