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commit 740bd09432d433f552a644c89847f1f64e219c12
Author: Carsten Haitzler <ras...@rasterman.com>
AuthorDate: Fri Jan 24 16:21:41 2025 +0000
signal handlers - print more info on catching a signal to stdout log
---
src/bin/e_signals.c | 95 ++++++++++++++++++++++++++++++++++++++++++++++++++---
1 file changed, 90 insertions(+), 5 deletions(-)
diff --git a/src/bin/e_signals.c b/src/bin/e_signals.c
index 4d6f9e5dd..10048f784 100644
--- a/src/bin/e_signals.c
+++ b/src/bin/e_signals.c
@@ -82,22 +82,104 @@ _e_crash(void)
#endif
}
+static void
+_e_siginfo(int sig, siginfo_t *info)
+{
+ // dump more info ont he signal we trapped to stdout
+ printf("SIG: sig=%i\n", sig);
+ printf("SIG: info->signo=");
+#define NAME(_x) case _x: printf(# _x "\n"); break
+#define NUMX(_v) default: printf("0x%lx\n", (unsigned long)_v); break
+#define NUMI(_v) default: printf("%li\n", (long)_v); break
+ switch(info->si_signo) {
+ NAME(SIGSEGV);
+ NAME(SIGILL);
+ NAME(SIGFPE);
+ NAME(SIGBUS);
+ NAME(SIGABRT);
+ NUMX(info->si_signo);
+ }
+ printf("SIG: info->code=");
+ switch(info->si_signo) {
+ case SIGSEGV:
+ switch(info->si_code) {
+ NAME(SEGV_MAPERR);
+ NAME(SEGV_ACCERR);
+#ifdef __linux__
+ NAME(SEGV_BNDERR);
+#endif
+ NAME(SEGV_PKUERR);
+ NUMX(info->si_code);
+ } break;
+ case SIGILL:
+ switch (info->si_code) {
+ NAME(ILL_ILLOPC);
+ NAME(ILL_ILLOPN);
+ NAME(ILL_ILLADR);
+ NAME(ILL_ILLTRP);
+ NAME(ILL_PRVOPC);
+ NAME(ILL_PRVREG);
+ NAME(ILL_COPROC);
+ NAME(ILL_BADSTK);
+ NUMX(info->si_code);
+ } break;
+ case SIGFPE:
+ switch (info->si_code) {
+ NAME(FPE_INTDIV);
+ NAME(FPE_INTOVF);
+ NAME(FPE_FLTDIV);
+ NAME(FPE_FLTOVF);
+ NAME(FPE_FLTUND);
+ NAME(FPE_FLTRES);
+ NAME(FPE_FLTINV);
+ NAME(FPE_FLTSUB);
+ NUMX(info->si_code);
+ } break;
+ case SIGBUS:
+ switch (info->si_code) {
+ NAME(BUS_ADRALN);
+ NAME(BUS_ADRERR);
+ NAME(BUS_OBJERR);
+#ifdef __linux__
+ NAME(BUS_MCEERR_AR);
+ NAME(BUS_MCEERR_AO);
+#endif
+ NUMX(info->si_code);
+ } break;
+ }
+ switch(info->si_signo) {
+ case SIGSEGV:
+ case SIGILL:
+ case SIGFPE:
+ case SIGBUS:
+# ifdef __linux__
+ printf("SIG: info->si_addr=%p\n", info->si_addr);
+# else
+ printf("SIG: info->si_addr=0x%08lx\n", (unsigned long)info->si_addr);
+# endif
+ default:
+ break;
+ }
+}
+
/* a tricky little devil, requires e and it's libs to be built
* with the -rdynamic flag to GCC for any sort of decent output.
*/
E_API void
-e_sigseg_act(int x EINA_UNUSED, siginfo_t *info EINA_UNUSED, void *data EINA_UNUSED)
+e_sigseg_act(int sig, siginfo_t *info, void *data EINA_UNUSED)
{
+ _e_siginfo(sig, info);
_e_crash();
}
E_API void
-e_sigill_act(int x EINA_UNUSED, siginfo_t *info EINA_UNUSED, void *data EINA_UNUSED)
+e_sigill_act(int sig, siginfo_t *info EINA_UNUSED, void *data EINA_UNUSED)
{
// In case of a SIGILL in Enlightenment, Enlightenment start will catch the SIGILL and continue,
// because evas cpu detection use that behaviour. But if we get a SIGILL after that, we end up in
// this sig handler. So E start remember the SIGILL, and we will commit suicide with a USR1, followed
// by a SEGV.
+ _e_siginfo(sig, info);
kill(getpid(), SIGUSR1);
kill(getpid(), SIGSEGV);
pause();
@@ -110,19 +192,22 @@ e_sigill_act(int x EINA_UNUSED, siginfo_t *info EINA_UNUSED, void *data EINA_UNU
}
E_API void
-e_sigfpe_act(int x EINA_UNUSED, siginfo_t *info EINA_UNUSED, void *data EINA_UNUSED)
+e_sigfpe_act(int sig, siginfo_t *info, void *data EINA_UNUSED)
{
+ _e_siginfo(sig, info);
_e_crash();
}
E_API void
-e_sigbus_act(int x EINA_UNUSED, siginfo_t *info EINA_UNUSED, void *data EINA_UNUSED)
+e_sigbus_act(int sig, siginfo_t *info, void *data EINA_UNUSED)
{
+ _e_siginfo(sig, info);
_e_crash();
}
E_API void
-e_sigabrt_act(int x EINA_UNUSED, siginfo_t *info EINA_UNUSED, void *data EINA_UNUSED)
+e_sigabrt_act(int sig, siginfo_t *info, void *data EINA_UNUSED)
{
+ _e_siginfo(sig, info);
_e_crash();
}
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