275 lines
7.1 KiB
C
275 lines
7.1 KiB
C
/* SPDX-FileCopyrightText: 2023 Blender Foundation
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup creator
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*/
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#ifndef WITH_PYTHON_MODULE
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# if defined(__linux__) && defined(__GNUC__)
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# define _GNU_SOURCE
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# include <fenv.h>
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# endif
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# if (defined(__APPLE__) && (defined(__i386__) || defined(__x86_64__)))
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# define OSX_SSE_FPE
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# include <xmmintrin.h>
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# endif
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# ifdef WIN32
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# include <float.h>
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# include <windows.h>
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# endif
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# include <errno.h>
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# include <stdlib.h>
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# include <string.h>
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# include "BLI_sys_types.h"
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# ifdef WIN32
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# include "BLI_winstuff.h"
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# endif
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# include "BLI_fileops.h"
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# include "BLI_path_util.h"
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# include "BLI_string.h"
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# include "BLI_system.h"
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# include "BLI_utildefines.h"
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# include BLI_SYSTEM_PID_H
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# include "BKE_appdir.h" /* BKE_tempdir_base */
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# include "BKE_blender_version.h"
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# include "BKE_global.h"
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# include "BKE_main.h"
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# include "BKE_report.h"
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# include <signal.h>
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# ifdef WITH_PYTHON
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# include "BPY_extern_python.h" /* BPY_python_backtrace */
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# endif
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# include "creator_intern.h" /* own include */
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// #define USE_WRITE_CRASH_BLEND
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# ifdef USE_WRITE_CRASH_BLEND
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# include "BKE_undo_system.h"
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# include "BLO_undofile.h"
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# endif
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/* set breakpoints here when running in debug mode, useful to catch floating point errors */
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# if defined(__linux__) || defined(_WIN32) || defined(OSX_SSE_FPE)
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static void sig_handle_fpe(int UNUSED(sig))
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{
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fprintf(stderr, "debug: SIGFPE trapped\n");
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}
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# endif
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/* Handling `Ctrl-C` event in the console. */
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static void sig_handle_blender_esc(int sig)
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{
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G.is_break = true; /* forces render loop to read queue, not sure if its needed */
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if (sig == 2) {
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static int count = 0;
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if (count) {
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printf("\nBlender killed\n");
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exit(2);
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}
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printf("\nSent an internal break event. Press ^C again to kill Blender\n");
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count++;
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}
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}
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static void sig_handle_crash_backtrace(FILE *fp)
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{
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fputs("\n# backtrace\n", fp);
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BLI_system_backtrace(fp);
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}
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static void sig_handle_crash(int signum)
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{
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/* Might be called after WM/Main exit, so needs to be careful about NULL-checking before
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* de-referencing. */
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wmWindowManager *wm = G_MAIN ? G_MAIN->wm.first : NULL;
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# ifdef USE_WRITE_CRASH_BLEND
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if (wm && wm->undo_stack) {
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struct MemFile *memfile = BKE_undosys_stack_memfile_get_active(wm->undo_stack);
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if (memfile) {
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char filepath[FILE_MAX];
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if (!(G_MAIN && G_MAIN->filepath[0])) {
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BLI_path_join(filepath, sizeof(filepath), BKE_tempdir_base(), "crash.blend");
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}
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else {
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STRNCPY(filepath, G_MAIN->filepath);
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BLI_path_extension_replace(filepath, sizeof(filepath), ".crash.blend");
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}
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printf("Writing: %s\n", filepath);
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fflush(stdout);
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BLO_memfile_write_file(memfile, filepath);
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}
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}
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# endif
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FILE *fp;
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char header[512];
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char filepath[FILE_MAX];
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if (!(G_MAIN && G_MAIN->filepath[0])) {
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BLI_path_join(filepath, sizeof(filepath), BKE_tempdir_base(), "blender.crash.txt");
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}
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else {
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BLI_path_join(
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filepath, sizeof(filepath), BKE_tempdir_base(), BLI_path_basename(G_MAIN->filepath));
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BLI_path_extension_replace(filepath, sizeof(filepath), ".crash.txt");
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}
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printf("Writing: %s\n", filepath);
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fflush(stdout);
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# ifndef BUILD_DATE
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SNPRINTF(header, "# " BLEND_VERSION_FMT ", Unknown revision\n", BLEND_VERSION_ARG);
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# else
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SNPRINTF(header,
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"# " BLEND_VERSION_FMT ", Commit date: %s %s, Hash %s\n",
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BLEND_VERSION_ARG,
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build_commit_date,
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build_commit_time,
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build_hash);
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# endif
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/* open the crash log */
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errno = 0;
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fp = BLI_fopen(filepath, "wb");
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if (fp == NULL) {
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fprintf(stderr,
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"Unable to save '%s': %s\n",
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filepath,
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errno ? strerror(errno) : "Unknown error opening file");
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}
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else {
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if (wm) {
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BKE_report_write_file_fp(fp, &wm->reports, header);
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}
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sig_handle_crash_backtrace(fp);
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# ifdef WITH_PYTHON
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/* Generate python back-trace if Python is currently active. */
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BPY_python_backtrace(fp);
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# endif
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fclose(fp);
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}
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/* Delete content of temp dir! */
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BKE_tempdir_session_purge();
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/* really crash */
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signal(signum, SIG_DFL);
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# ifndef WIN32
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kill(getpid(), signum);
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# else
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TerminateProcess(GetCurrentProcess(), signum);
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# endif
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}
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# ifdef WIN32
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extern LONG WINAPI windows_exception_handler(EXCEPTION_POINTERS *ExceptionInfo)
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{
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/* If this is a stack overflow then we can't walk the stack, so just try to show
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* where the error happened */
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if (ExceptionInfo->ExceptionRecord->ExceptionCode == EXCEPTION_STACK_OVERFLOW) {
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HMODULE mod;
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CHAR modulename[MAX_PATH];
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LPVOID address = ExceptionInfo->ExceptionRecord->ExceptionAddress;
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fprintf(stderr, "Error : EXCEPTION_STACK_OVERFLOW\n");
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fprintf(stderr, "Address : 0x%p\n", address);
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if (GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, address, &mod)) {
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if (GetModuleFileName(mod, modulename, MAX_PATH)) {
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fprintf(stderr, "Module : %s\n", modulename);
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}
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}
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}
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else {
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BLI_windows_handle_exception(ExceptionInfo);
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sig_handle_crash(SIGSEGV);
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}
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return EXCEPTION_EXECUTE_HANDLER;
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}
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# endif
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static void sig_handle_abort(int UNUSED(signum))
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{
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/* Delete content of temp dir! */
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BKE_tempdir_session_purge();
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}
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void main_signal_setup(void)
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{
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if (app_state.signal.use_crash_handler) {
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# ifdef WIN32
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SetUnhandledExceptionFilter(windows_exception_handler);
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# else
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/* after parsing args */
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signal(SIGSEGV, sig_handle_crash);
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# endif
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}
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# ifdef WIN32
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/* Prevent any error mode dialogs from hanging the application. */
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SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOALIGNMENTFAULTEXCEPT | SEM_NOGPFAULTERRORBOX |
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SEM_NOOPENFILEERRORBOX);
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# endif
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if (app_state.signal.use_abort_handler) {
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signal(SIGABRT, sig_handle_abort);
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}
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}
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void main_signal_setup_background(void)
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{
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/* for all platforms, even windows has it! */
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BLI_assert(G.background);
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/* Support pressing `Ctrl-C` to close Blender in background-mode.
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* Useful to be able to cancel a render operation. */
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signal(SIGINT, sig_handle_blender_esc);
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}
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void main_signal_setup_fpe(void)
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{
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# if defined(__linux__) || defined(_WIN32) || defined(OSX_SSE_FPE)
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/* zealous but makes float issues a heck of a lot easier to find!
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* set breakpoints on sig_handle_fpe */
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signal(SIGFPE, sig_handle_fpe);
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# if defined(__linux__) && defined(__GNUC__) && defined(HAVE_FEENABLEEXCEPT)
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feenableexcept(FE_DIVBYZERO | FE_INVALID | FE_OVERFLOW);
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# endif /* defined(__linux__) && defined(__GNUC__) */
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# if defined(OSX_SSE_FPE)
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/* OSX uses SSE for floating point by default, so here
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* use SSE instructions to throw floating point exceptions */
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_MM_SET_EXCEPTION_MASK(_MM_MASK_MASK &
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~(_MM_MASK_OVERFLOW | _MM_MASK_INVALID | _MM_MASK_DIV_ZERO));
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# endif /* OSX_SSE_FPE */
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# if defined(_WIN32) && defined(_MSC_VER)
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/* enables all fp exceptions */
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_controlfp_s(NULL, 0, _MCW_EM);
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/* hide the ones we don't care about */
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_controlfp_s(NULL, _EM_DENORMAL | _EM_UNDERFLOW | _EM_INEXACT, _MCW_EM);
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# endif /* _WIN32 && _MSC_VER */
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# endif
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}
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#endif /* WITH_PYTHON_MODULE */
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