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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file creator/creator_signals.c
* \ingroup creator
*/
#ifndef WITH_PYTHON_MODULE
#if defined(__linux__) && defined(__GNUC__)
# define _GNU_SOURCE
# include <fenv.h>
#endif
#if (defined(__APPLE__) && (defined(__i386__) || defined(__x86_64__)))
# define OSX_SSE_FPE
# include <xmmintrin.h>
#endif
#ifdef WIN32
# if defined(_MSC_VER) && defined(_M_X64)
# include <math.h> /* needed for _set_FMA3_enable */
# endif
# include <windows.h>
# include <float.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "BLI_sys_types.h"
#ifdef WIN32
# include "BLI_winstuff.h"
#endif
#include "BLI_utildefines.h"
#include "BLI_string.h"
#include "BLI_path_util.h"
#include "BLI_fileops.h"
#include "BLI_system.h"
#include BLI_SYSTEM_PID_H
#include "BKE_appdir.h" /* BKE_tempdir_base */
#include "BKE_blender_version.h"
#include "BKE_global.h"
#include "BKE_main.h"
#include "BKE_report.h"
/* for passing information between creator and gameengine */
#ifdef WITH_GAMEENGINE
# include "BL_System.h"
#else /* dummy */
# define SYS_SystemHandle int
#endif
#include <signal.h>
#include "creator_intern.h" /* own include */
// #define USE_WRITE_CRASH_BLEND
#ifdef USE_WRITE_CRASH_BLEND
# include "BKE_undo_system.h"
# include "BLO_undofile.h"
#endif
/* set breakpoints here when running in debug mode, useful to catch floating point errors */
#if defined(__linux__) || defined(_WIN32) || defined(OSX_SSE_FPE)
static void sig_handle_fpe(int UNUSED(sig))
{
fprintf(stderr, "debug: SIGFPE trapped\n");
}
#endif
/* handling ctrl-c event in console */
#if !defined(WITH_HEADLESS)
static void sig_handle_blender_esc(int sig)
{
static int count = 0;
G.is_break = true; /* forces render loop to read queue, not sure if its needed */
if (sig == 2) {
if (count) {
printf("\nBlender killed\n");
exit(2);
}
printf("\nSent an internal break event. Press ^C again to kill Blender\n");
count++;
}
}
#endif
static void sig_handle_crash_backtrace(FILE *fp)
{
fputs("\n# backtrace\n", fp);
BLI_system_backtrace(fp);
}
static void sig_handle_crash(int signum)
{
wmWindowManager *wm = G_MAIN->wm.first;
#ifdef USE_WRITE_CRASH_BLEND
if (wm->undo_stack) {
struct MemFile *memfile = BKE_undosys_stack_memfile_get_active(wm->undo_stack);
if (memfile) {
char fname[FILE_MAX];
if (!G_MAIN->name[0]) {
BLI_make_file_string("/", fname, BKE_tempdir_base(), "crash.blend");
}
else {
BLI_strncpy(fname, G_MAIN->name, sizeof(fname));
BLI_path_extension_replace(fname, sizeof(fname), ".crash.blend");
}
printf("Writing: %s\n", fname);
fflush(stdout);
BLO_memfile_write_file(memfile, fname);
}
}
#endif
FILE *fp;
char header[512];
char fname[FILE_MAX];
if (!G_MAIN->name[0]) {
BLI_join_dirfile(fname, sizeof(fname), BKE_tempdir_base(), "blender.crash.txt");
}
else {
BLI_join_dirfile(fname, sizeof(fname), BKE_tempdir_base(), BLI_path_basename(G_MAIN->name));
BLI_path_extension_replace(fname, sizeof(fname), ".crash.txt");
}
printf("Writing: %s\n", fname);
fflush(stdout);
#ifndef BUILD_DATE
BLI_snprintf(header, sizeof(header), "# " BLEND_VERSION_FMT ", Unknown revision\n", BLEND_VERSION_ARG);
#else
BLI_snprintf(header, sizeof(header), "# " BLEND_VERSION_FMT ", Commit date: %s %s, Hash %s\n",
BLEND_VERSION_ARG, build_commit_date, build_commit_time, build_hash);
#endif
/* open the crash log */
errno = 0;
fp = BLI_fopen(fname, "wb");
if (fp == NULL) {
fprintf(stderr, "Unable to save '%s': %s\n",
fname, errno ? strerror(errno) : "Unknown error opening file");
}
else {
if (wm) {
BKE_report_write_file_fp(fp, &wm->reports, header);
}
sig_handle_crash_backtrace(fp);
fclose(fp);
}
/* Delete content of temp dir! */
BKE_tempdir_session_purge();
/* really crash */
signal(signum, SIG_DFL);
#ifndef WIN32
kill(getpid(), signum);
#else
TerminateProcess(GetCurrentProcess(), signum);
#endif
}
#ifdef WIN32
LONG WINAPI windows_exception_handler(EXCEPTION_POINTERS *ExceptionInfo)
{
switch (ExceptionInfo->ExceptionRecord->ExceptionCode) {
case EXCEPTION_ACCESS_VIOLATION:
fputs("Error : EXCEPTION_ACCESS_VIOLATION\n", stderr);
break;
case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
fputs("Error : EXCEPTION_ARRAY_BOUNDS_EXCEEDED\n", stderr);
break;
case EXCEPTION_BREAKPOINT:
fputs("Error : EXCEPTION_BREAKPOINT\n", stderr);
break;
case EXCEPTION_DATATYPE_MISALIGNMENT:
fputs("Error : EXCEPTION_DATATYPE_MISALIGNMENT\n", stderr);
break;
case EXCEPTION_FLT_DENORMAL_OPERAND:
fputs("Error : EXCEPTION_FLT_DENORMAL_OPERAND\n", stderr);
break;
case EXCEPTION_FLT_DIVIDE_BY_ZERO:
fputs("Error : EXCEPTION_FLT_DIVIDE_BY_ZERO\n", stderr);
break;
case EXCEPTION_FLT_INEXACT_RESULT:
fputs("Error : EXCEPTION_FLT_INEXACT_RESULT\n", stderr);
break;
case EXCEPTION_FLT_INVALID_OPERATION:
fputs("Error : EXCEPTION_FLT_INVALID_OPERATION\n", stderr);
break;
case EXCEPTION_FLT_OVERFLOW:
fputs("Error : EXCEPTION_FLT_OVERFLOW\n", stderr);
break;
case EXCEPTION_FLT_STACK_CHECK:
fputs("Error : EXCEPTION_FLT_STACK_CHECK\n", stderr);
break;
case EXCEPTION_FLT_UNDERFLOW:
fputs("Error : EXCEPTION_FLT_UNDERFLOW\n", stderr);
break;
case EXCEPTION_ILLEGAL_INSTRUCTION:
fputs("Error : EXCEPTION_ILLEGAL_INSTRUCTION\n", stderr);
break;
case EXCEPTION_IN_PAGE_ERROR:
fputs("Error : EXCEPTION_IN_PAGE_ERROR\n", stderr);
break;
case EXCEPTION_INT_DIVIDE_BY_ZERO:
fputs("Error : EXCEPTION_INT_DIVIDE_BY_ZERO\n", stderr);
break;
case EXCEPTION_INT_OVERFLOW:
fputs("Error : EXCEPTION_INT_OVERFLOW\n", stderr);
break;
case EXCEPTION_INVALID_DISPOSITION:
fputs("Error : EXCEPTION_INVALID_DISPOSITION\n", stderr);
break;
case EXCEPTION_NONCONTINUABLE_EXCEPTION:
fputs("Error : EXCEPTION_NONCONTINUABLE_EXCEPTION\n", stderr);
break;
case EXCEPTION_PRIV_INSTRUCTION:
fputs("Error : EXCEPTION_PRIV_INSTRUCTION\n", stderr);
break;
case EXCEPTION_SINGLE_STEP:
fputs("Error : EXCEPTION_SINGLE_STEP\n", stderr);
break;
case EXCEPTION_STACK_OVERFLOW:
fputs("Error : EXCEPTION_STACK_OVERFLOW\n", stderr);
break;
default:
fputs("Error : Unrecognized Exception\n", stderr);
break;
}
fflush(stderr);
/* If this is a stack overflow then we can't walk the stack, so just show
* where the error happened */
if (EXCEPTION_STACK_OVERFLOW != ExceptionInfo->ExceptionRecord->ExceptionCode) {
HMODULE mod;
CHAR modulename[MAX_PATH];
LPVOID address = ExceptionInfo->ExceptionRecord->ExceptionAddress;
fprintf(stderr, "Address : 0x%p\n", address);
if (GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, address, &mod)) {
if (GetModuleFileName(mod, modulename, MAX_PATH)) {
fprintf(stderr, "Module : %s\n", modulename);
}
}
fflush(stderr);
#ifdef NDEBUG
TerminateProcess(GetCurrentProcess(), SIGSEGV);
#else
sig_handle_crash(SIGSEGV);
#endif
}
return EXCEPTION_EXECUTE_HANDLER;
}
#endif
static void sig_handle_abort(int UNUSED(signum))
{
/* Delete content of temp dir! */
BKE_tempdir_session_purge();
}
void main_signal_setup(void)
{
if (app_state.signal.use_crash_handler) {
#ifdef WIN32
SetUnhandledExceptionFilter(windows_exception_handler);
#else
/* after parsing args */
signal(SIGSEGV, sig_handle_crash);
#endif
}
if (app_state.signal.use_abort_handler) {
signal(SIGABRT, sig_handle_abort);
}
}
void main_signal_setup_background(void)
{
/* for all platforms, even windos has it! */
BLI_assert(G.background);
#if !defined(WITH_HEADLESS)
signal(SIGINT, sig_handle_blender_esc); /* ctrl c out bg render */
#endif
}
void main_signal_setup_fpe(void)
{
#if defined(__linux__) || defined(_WIN32) || defined(OSX_SSE_FPE)
/* zealous but makes float issues a heck of a lot easier to find!
* set breakpoints on sig_handle_fpe */
signal(SIGFPE, sig_handle_fpe);
# if defined(__linux__) && defined(__GNUC__)
feenableexcept(FE_DIVBYZERO | FE_INVALID | FE_OVERFLOW);
# endif /* defined(__linux__) && defined(__GNUC__) */
# if defined(OSX_SSE_FPE)
/* OSX uses SSE for floating point by default, so here
* use SSE instructions to throw floating point exceptions */
_MM_SET_EXCEPTION_MASK(_MM_MASK_MASK & ~
(_MM_MASK_OVERFLOW | _MM_MASK_INVALID | _MM_MASK_DIV_ZERO));
# endif /* OSX_SSE_FPE */
# if defined(_WIN32) && defined(_MSC_VER)
/* enables all fp exceptions */
_controlfp_s(NULL, 0, _MCW_EM);
/* hide the ones we don't care about */
_controlfp_s(NULL, _EM_DENORMAL | _EM_UNDERFLOW | _EM_INEXACT, _MCW_EM);
# endif /* _WIN32 && _MSC_VER */
#endif
}
#endif /* WITH_PYTHON_MODULE */
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