diff options
Diffstat (limited to 'source/rofi.c')
| -rw-r--r-- | source/rofi.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/source/rofi.c b/source/rofi.c index a94d4611..8cc99c15 100644 --- a/source/rofi.c +++ b/source/rofi.c @@ -47,6 +47,9 @@ #include <libgwater-xcb.h> +#define UNW_LOCAL_ONLY +#include <libunwind.h> + #ifdef USE_NK_GIT_VERSION #include "nkutils-git-version.h" #ifdef NK_GIT_VERSION @@ -679,6 +682,47 @@ static gboolean main_loop_signal_handler_int ( G_GNUC_UNUSED gpointer data ) g_main_loop_quit ( main_loop ); return G_SOURCE_CONTINUE; } + +static void send_backtrace_to_monitor(void) { + unw_cursor_t cursor; + unw_context_t context; + + fprintf(stderr, "----------===== Backtrace =====----------\n"); + // grab the machine context and initialize the cursor + if (unw_getcontext(&context) < 0) { + fprintf(stderr, "ERROR: cannot get local machine state\n"); + } + if (unw_init_local(&cursor, &context) < 0) { + fprintf(stderr,"ERROR: cannot initialize cursor for local unwinding\n"); + } + + + // currently the IP is within backtrace() itself so this loop + // deliberately skips the first frame. + while (unw_step(&cursor) > 0) { + unw_word_t offset = 0, pc = 0; + char sym[4096]; + if (unw_get_reg(&cursor, UNW_REG_IP, &pc)) { + fprintf(stderr,"ERROR: cannot read program counter\n"); + } + + fprintf(stderr, "0x%lx: ", pc); + + if (unw_get_proc_name(&cursor, sym, sizeof(sym), &offset) == 0) { + fprintf(stderr,"(%s +0x%lx)\n", sym, offset); + } else { + fprintf(stderr, "-- no symbol name found\n"); + } + } + fprintf(stderr, "----------===== Backtrace =====----------\n"); +} + +static void main_loop_signal_handler_sigsegv_int ( int signr ) +{ + signal(signr, SIG_DFL); /* Set it back immediately. */ + send_backtrace_to_monitor(); + raise(signr); +} static void show_error_dialog () { GString *emesg = g_string_new ( "The following errors were detected when starting rofi:\n" ); @@ -1073,6 +1117,8 @@ int main ( int argc, char *argv[] ) // SIGINT g_unix_signal_add ( SIGINT, main_loop_signal_handler_int, NULL ); + signal ( SIGSEGV, main_loop_signal_handler_sigsegv_int ); + g_idle_add ( startup, NULL ); // Start mainloop. |