diff options
| -rw-r--r-- | base.h | 1 | ||||
| -rw-r--r-- | main.c | 104 | ||||
| -rw-r--r-- | make.bat | 4 |
3 files changed, 100 insertions, 9 deletions
@@ -12,6 +12,7 @@ #if _WIN32 #include <windows.h> #include <shlobj.h> +#include <dbghelp.h> #define PATH_SEPARATOR '\\' #define PATH_SEPARATOR_STR "\\" // on windows, let the user use forwards slashes as well as backslashes @@ -1,5 +1,5 @@ // @TODO: -// - "on crash, output backtrace to log" for Windows +// - fix: after closing last tab in active node, there should be a new active node // - Windows installation // - test on BSD @@ -23,6 +23,10 @@ no_warn_end #endif #if _WIN32 #include <shellapi.h> +#pragma comment(lib, "dbghelp.lib") +#pragma comment(lib, "ole32.lib") +#pragma comment(lib, "opengl32.lib") +#pragma comment(lib, "shell32.lib") #endif #define PCRE2_STATIC #define PCRE2_CODE_UNIT_WIDTH 32 @@ -114,13 +118,18 @@ static void APIENTRY gl_message_callback(GLenum source, GLenum type, unsigned in } #endif -#if __unix__ +#define CRASH_CRASH_MESSAGE "ted crashed while trying to handle a crash! yikes! ):" +#define CRASH_MESSAGE "ted has crashed ): Please send %s/log.txt to pommicket""@gmail.com if you want this fixed.", ted->local_data_dir +#define CRASH_STARTUP_MESSAGE "ted crashed when starting up ):" + static Ted *error_signal_handler_ted; static bool signal_being_handled; // prevent infinite signal recursion +#if __unix__ static void error_signal_handler(int signum, siginfo_t *info, void *context) { (void)context; if (signal_being_handled) - die("ted crashed while trying to handle a crash! yikes! ):"); + die(CRASH_CRASH_MESSAGE); + signal_being_handled = true; Ted *ted = error_signal_handler_ted; if (ted) { FILE *log = ted->log; @@ -147,12 +156,85 @@ static void error_signal_handler(int signum, siginfo_t *info, void *context) { #endif fclose(log); } - session_write(ted); - die("ted has crashed ): Please send %s/log.txt to pommicket""@gmail.com if you want this fixed.", ted->local_data_dir); + die(CRASH_MESSAGE); + } else { + die(CRASH_STARTUP_MESSAGE); + } +} +#elif _WIN32 +static char const *windows_exception_to_str(DWORD exception_code) { + switch (exception_code) { + case EXCEPTION_ACCESS_VIOLATION: return "Access violation"; + case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: return "Array out of bounds"; + case EXCEPTION_BREAKPOINT: return "Breakpoint"; + case EXCEPTION_DATATYPE_MISALIGNMENT: return "Misaligned read or write"; + case EXCEPTION_FLT_DENORMAL_OPERAND: return "Floating-point denormal operand"; + case EXCEPTION_FLT_DIVIDE_BY_ZERO: return "Floating-point division by zero"; + case EXCEPTION_FLT_INEXACT_RESULT: return "Floating-point inexact result"; + case EXCEPTION_FLT_INVALID_OPERATION: return "Floating-point invalid operation"; + case EXCEPTION_FLT_OVERFLOW: return "Floating-point overflow"; + case EXCEPTION_FLT_STACK_CHECK: return "Floating-point stack over/underflow"; + case EXCEPTION_FLT_UNDERFLOW: return "Floating-point underflow"; + case EXCEPTION_ILLEGAL_INSTRUCTION: return "Illegal instruction"; + case EXCEPTION_IN_PAGE_ERROR: return "Page not present"; + case EXCEPTION_INT_DIVIDE_BY_ZERO: return "Integer divide by zero"; + case EXCEPTION_INT_OVERFLOW: return "Integer overflow"; + case EXCEPTION_INVALID_DISPOSITION: return "Invalid disposition"; + case EXCEPTION_NONCONTINUABLE_EXCEPTION: return "Continue after non-continuable exception"; + case EXCEPTION_PRIV_INSTRUCTION: return "Private instruction executed"; + case EXCEPTION_SINGLE_STEP: return "Single step"; + case EXCEPTION_STACK_OVERFLOW: return "Stack overflow"; + } + return "Unknown exception"; +} + + +static LONG WINAPI error_signal_handler(EXCEPTION_POINTERS *info) { + if (signal_being_handled) + die(CRASH_CRASH_MESSAGE); + signal_being_handled = true; + Ted *ted = error_signal_handler_ted; + if (ted) { + FILE *log = ted->log; + if (log) { + DWORD exception_code = info->ExceptionRecord->ExceptionCode; + fprintf(log, "Exception 0x%lx: %s.\n", (unsigned long)exception_code, windows_exception_to_str(exception_code)); + fprintf(log, "Address: 0x%llx.\n", (unsigned long long)info->ExceptionRecord->ExceptionAddress); + fprintf(log, "Info0: 0x%llx.\n", (unsigned long long)info->ExceptionRecord->ExceptionInformation[0]); + fprintf(log, "Info1: 0x%llx.\n", (unsigned long long)info->ExceptionRecord->ExceptionInformation[1]); + fprintf(log, "Info2: 0x%llx.\n", (unsigned long long)info->ExceptionRecord->ExceptionInformation[2]); + #if _M_AMD64 + CONTEXT *context = info->ContextRecord; + if (exception_code == EXCEPTION_STACK_OVERFLOW) { + // don't backtrace; just output current address + fprintf(log, "Instruction: 0x%llx\n", (unsigned long long)context->Rip); + } else { + fprintf(log, "Backtrace:\n"); + HANDLE process = GetCurrentProcess(), thread = GetCurrentThread(); + // backtrace + // this here was very helpful: https://gist.github.com/jvranish/4441299 + if (SymInitialize(process, NULL, true)) { + STACKFRAME frame = {0}; + frame.AddrPC.Offset = context->Rip; + frame.AddrStack.Offset = context->Rsp; + frame.AddrFrame.Offset = context->Rbp; + frame.AddrPC.Mode = frame.AddrStack.Mode = frame.AddrFrame.Mode = AddrModeFlat; + while (StackWalk(IMAGE_FILE_MACHINE_AMD64, process, thread, + &frame, context, NULL, SymFunctionTableAccess, SymGetModuleBase, NULL)) { + fprintf(log, "0x%llx\n", (unsigned long long)frame.AddrPC.Offset); + } + SymCleanup(process); + } + } + #endif + fclose(log); + } + die(CRASH_MESSAGE); } else { - die("ted crashed when starting up ):"); + die(CRASH_STARTUP_MESSAGE); } + return EXCEPTION_EXECUTE_HANDLER; } #endif @@ -242,6 +324,10 @@ int main(int argc, char **argv) { sigaction(SIGILL, &act, NULL); sigaction(SIGPIPE, &act, NULL); } +#elif _WIN32 + SetUnhandledExceptionFilter(error_signal_handler); +#else + #error "Unrecognized operating system." #endif setlocale(LC_ALL, ""); // allow unicode @@ -272,7 +358,8 @@ int main(int argc, char **argv) { if (!ted) { die("Not enough memory available to run ted."); } - + + // make sure signal handler has access to ted. error_signal_handler_ted = ted; { // get local data directory @@ -297,6 +384,9 @@ int main(int argc, char **argv) { strbuf_printf(ted->global_data_dir, "/usr/share/ted"); #endif + if (fs_path_type(ted->local_data_dir) == FS_NON_EXISTENT) + fs_mkdir(ted->local_data_dir); + } FILE *log = NULL; @@ -10,10 +10,10 @@ if not exist pcre2-32.lib ( popd copy pcre2-10.36\Release\pcre2-32.lib ) -SET C_FLAGS=/nologo /W4 /MD /wd4200 /wd4204 /wd4221 /wd4706 /wd4214 /D_CRT_SECURE_NO_WARNINGS /I pcre2-10.36 /I SDL2/include SDL2/lib/x64/SDL2main.lib SDL2/lib/x64/SDL2.lib opengl32.lib shell32.lib ole32.lib pcre2-32.lib +SET C_FLAGS=/nologo /W4 /MD /wd4200 /wd4204 /wd4221 /wd4706 /wd4214 /D_CRT_SECURE_NO_WARNINGS /I pcre2-10.36 /I SDL2/include SDL2/lib/x64/SDL2main.lib SDL2/lib/x64/SDL2.lib pcre2-32.lib rc /nologo ted.rc if _%1 == _ ( - cl main.c ted.res /DDEBUG /DEBUG /Zi %C_FLAGS% /Fe:ted + cl main.c stb_truetype.c ted.res /DDEBUG /DEBUG /Zi %C_FLAGS% /Fe:ted ) if _%1 == _release cl main.c ted.res /O2 %C_FLAGS% /Fe:ted if _%1 == _release_with_debug_info cl main.c ted.res /DEBUG /Zi /O2 %C_FLAGS% /Fe:ted |