+2014-06-09 Gary Benson <gbenson@redhat.com>
+
+ * common/signals.c (gdb_signal_from_host): Reorder to separate
+ the always-available ANSI-standard signals from the signals that
+ require checking.
+ (do_gdb_signal_to_host): Likewise.
+ * proc-events.c (signal_table): Likewise.
+
2014-06-08 Hui Zhu <hui@codesourcery.com>
* common/linux-ptrace.c (linux_disable_event_reporting): New
enum gdb_signal
gdb_signal_from_host (int hostsig)
{
- /* A switch statement would make sense but would require special kludges
- to deal with the cases where more than one signal has the same number. */
+ /* A switch statement would make sense but would require special
+ kludges to deal with the cases where more than one signal has the
+ same number. Signals are ordered ANSI-standard signals first,
+ other signals second, with signals in each block ordered by their
+ numerical values on a typical POSIX platform. */
if (hostsig == 0)
return GDB_SIGNAL_0;
+ /* SIGINT, SIGILL, SIGABRT, SIGFPE, SIGSEGV and SIGTERM
+ are ANSI-standard signals and are always available. */
+ if (hostsig == SIGINT)
+ return GDB_SIGNAL_INT;
+ if (hostsig == SIGILL)
+ return GDB_SIGNAL_ILL;
+ if (hostsig == SIGABRT)
+ return GDB_SIGNAL_ABRT;
+ if (hostsig == SIGFPE)
+ return GDB_SIGNAL_FPE;
+ if (hostsig == SIGSEGV)
+ return GDB_SIGNAL_SEGV;
+ if (hostsig == SIGTERM)
+ return GDB_SIGNAL_TERM;
+
+ /* All other signals need preprocessor conditionals. */
#if defined (SIGHUP)
if (hostsig == SIGHUP)
return GDB_SIGNAL_HUP;
#endif
- if (hostsig == SIGINT)
- return GDB_SIGNAL_INT;
#if defined (SIGQUIT)
if (hostsig == SIGQUIT)
return GDB_SIGNAL_QUIT;
#endif
- if (hostsig == SIGILL)
- return GDB_SIGNAL_ILL;
#if defined (SIGTRAP)
if (hostsig == SIGTRAP)
return GDB_SIGNAL_TRAP;
#endif
- if (hostsig == SIGABRT)
- return GDB_SIGNAL_ABRT;
#if defined (SIGEMT)
if (hostsig == SIGEMT)
return GDB_SIGNAL_EMT;
#endif
- if (hostsig == SIGFPE)
- return GDB_SIGNAL_FPE;
#if defined (SIGKILL)
if (hostsig == SIGKILL)
return GDB_SIGNAL_KILL;
if (hostsig == SIGBUS)
return GDB_SIGNAL_BUS;
#endif
- if (hostsig == SIGSEGV)
- return GDB_SIGNAL_SEGV;
#if defined (SIGSYS)
if (hostsig == SIGSYS)
return GDB_SIGNAL_SYS;
if (hostsig == SIGALRM)
return GDB_SIGNAL_ALRM;
#endif
- if (hostsig == SIGTERM)
- return GDB_SIGNAL_TERM;
#if defined (SIGUSR1)
if (hostsig == SIGUSR1)
return GDB_SIGNAL_USR1;
do not support signals. */
(void) retsig;
+ /* Signals are ordered ANSI-standard signals first, other signals
+ second, with signals in each block ordered by their numerical
+ values on a typical POSIX platform. */
+
*oursig_ok = 1;
switch (oursig)
{
case GDB_SIGNAL_0:
return 0;
+ /* SIGINT, SIGILL, SIGABRT, SIGFPE, SIGSEGV and SIGTERM
+ are ANSI-standard signals and are always available. */
+ case GDB_SIGNAL_INT:
+ return SIGINT;
+ case GDB_SIGNAL_ILL:
+ return SIGILL;
+ case GDB_SIGNAL_ABRT:
+ return SIGABRT;
+ case GDB_SIGNAL_FPE:
+ return SIGFPE;
+ case GDB_SIGNAL_SEGV:
+ return SIGSEGV;
+ case GDB_SIGNAL_TERM:
+ return SIGTERM;
+
+ /* All other signals need preprocessor conditionals. */
#if defined (SIGHUP)
case GDB_SIGNAL_HUP:
return SIGHUP;
#endif
- case GDB_SIGNAL_INT:
- return SIGINT;
#if defined (SIGQUIT)
case GDB_SIGNAL_QUIT:
return SIGQUIT;
#endif
- case GDB_SIGNAL_ILL:
- return SIGILL;
#if defined (SIGTRAP)
case GDB_SIGNAL_TRAP:
return SIGTRAP;
#endif
- case GDB_SIGNAL_ABRT:
- return SIGABRT;
#if defined (SIGEMT)
case GDB_SIGNAL_EMT:
return SIGEMT;
#endif
- case GDB_SIGNAL_FPE:
- return SIGFPE;
#if defined (SIGKILL)
case GDB_SIGNAL_KILL:
return SIGKILL;
case GDB_SIGNAL_BUS:
return SIGBUS;
#endif
- case GDB_SIGNAL_SEGV:
- return SIGSEGV;
#if defined (SIGSYS)
case GDB_SIGNAL_SYS:
return SIGSYS;
case GDB_SIGNAL_ALRM:
return SIGALRM;
#endif
- case GDB_SIGNAL_TERM:
- return SIGTERM;
#if defined (SIGUSR1)
case GDB_SIGNAL_USR1:
return SIGUSR1;
\f
/* Prettyprint signals. */
-/* Signal translation table. */
+/* Signal translation table, ordered ANSI-standard signals first,
+ other signals second, with signals in each block ordered by their
+ numerical values on a typical POSIX platform. */
static struct trans signal_table[] =
{
{ 0, "<no signal>", "no signal" },
+
+ /* SIGINT, SIGILL, SIGABRT, SIGFPE, SIGSEGV and SIGTERM
+ are ANSI-standard signals and are always available. */
+
+ { SIGINT, "SIGINT", "Interrupt (rubout)" },
+ { SIGILL, "SIGILL", "Illegal instruction" }, /* not reset when caught */
+ { SIGABRT, "SIGABRT", "used by abort()" }, /* replaces SIGIOT */
+ { SIGFPE, "SIGFPE", "Floating point exception" },
+ { SIGSEGV, "SIGSEGV", "Segmentation violation" },
+ { SIGTERM, "SIGTERM", "Software termination signal from kill" },
+
+ /* All other signals need preprocessor conditionals. */
+
#ifdef SIGHUP
{ SIGHUP, "SIGHUP", "Hangup" },
#endif
- { SIGINT, "SIGINT", "Interrupt (rubout)" },
#ifdef SIGQUIT
{ SIGQUIT, "SIGQUIT", "Quit (ASCII FS)" },
#endif
- { SIGILL, "SIGILL", "Illegal instruction" }, /* not reset when caught */
#ifdef SIGTRAP
{ SIGTRAP, "SIGTRAP", "Trace trap" }, /* not reset when caught */
#endif
- { SIGABRT, "SIGABRT", "used by abort()" }, /* replaces SIGIOT */
#ifdef SIGIOT
{ SIGIOT, "SIGIOT", "IOT instruction" },
#endif
#ifdef SIGEMT
{ SIGEMT, "SIGEMT", "EMT instruction" },
#endif
- { SIGFPE, "SIGFPE", "Floating point exception" },
#ifdef SIGKILL
{ SIGKILL, "SIGKILL", "Kill" }, /* Solaris: cannot be caught/ignored */
#endif
#ifdef SIGBUS
{ SIGBUS, "SIGBUS", "Bus error" },
#endif
- { SIGSEGV, "SIGSEGV", "Segmentation violation" },
#ifdef SIGSYS
{ SIGSYS, "SIGSYS", "Bad argument to system call" },
#endif
#ifdef SIGALRM
{ SIGALRM, "SIGALRM", "Alarm clock" },
#endif
- { SIGTERM, "SIGTERM", "Software termination signal from kill" },
#ifdef SIGUSR1
{ SIGUSR1, "SIGUSR1", "User defined signal 1" },
#endif
+2014-06-09 Gary Benson <gbenson@redhat.com>
+
+ * gdb.base/sigall.c [Functions to send signals]: Reorder to
+ separate the always-available ANSI-standard signals from the
+ signals that require checking.
+ (main): Likewise.
+ * gdb.reverse/sigall-reverse.c [Functions to send signals]:
+ Likewise.
+ (main): Likewise.
+
2014-06-07 Keith Seitz <keiths@redhat.com>
Revert:
{
}
\f
-/* Functions to send signals. These also serve as markers. */
+/* Functions to send signals. These also serve as markers.
+ Ordered ANSI-standard signals first, other signals second,
+ with signals in each block ordered by their numerical values
+ on a typical POSIX platform. */
+
+/* SIGINT, SIGILL, SIGABRT, SIGFPE, SIGSEGV and SIGTERM
+ are ANSI-standard signals and are always available. */
+
+int
+gen_ILL ()
+{
+ kill (getpid (), SIGILL);
+ return 0;
+}
+
int
gen_ABRT ()
{
return 0;
}
+int x;
+
+int
+gen_FPE ()
+{
+ /* The intent behind generating SIGFPE this way is to check the mapping
+ from the CPU exception itself to the signals. It would be nice to
+ do the same for SIGBUS, SIGSEGV, etc., but I suspect that even this
+ test might turn out to be insufficiently portable. */
+
+#if 0
+ /* Loses on the PA because after the signal handler executes we try to
+ re-execute the failing instruction again. Perhaps we could siglongjmp
+ out of the signal handler? */
+ /* The expect script looks for the word "kill"; don't delete it. */
+ return 5 / x; /* and we both started jumping up and down yelling kill */
+#else
+ kill (getpid (), SIGFPE);
+#endif
+ return 0;
+}
+
+int
+gen_SEGV ()
+{
+ kill (getpid (), SIGSEGV);
+ return 0;
+}
+
+int
+gen_TERM ()
+{
+ kill (getpid (), SIGTERM);
+ return 0;
+}
+
+/* All other signals need preprocessor conditionals. */
+
int
gen_HUP ()
{
return 0;
}
-int
-gen_ILL ()
-{
- kill (getpid (), SIGILL);
-return 0;
-}
-
int
gen_EMT ()
{
return 0;
}
-int x;
-
-int
-gen_FPE ()
-{
- /* The intent behind generating SIGFPE this way is to check the mapping
- from the CPU exception itself to the signals. It would be nice to
- do the same for SIGBUS, SIGSEGV, etc., but I suspect that even this
- test might turn out to be insufficiently portable. */
-
-#if 0
- /* Loses on the PA because after the signal handler executes we try to
- re-execute the failing instruction again. Perhaps we could siglongjmp
- out of the signal handler? */
- /* The expect script looks for the word "kill"; don't delete it. */
- return 5 / x; /* and we both started jumping up and down yelling kill */
-#else
- kill (getpid (), SIGFPE);
-#endif
-return 0;
-}
-
int
gen_BUS ()
{
return 0;
}
-int
-gen_SEGV ()
-{
- kill (getpid (), SIGSEGV);
-return 0;
-}
-
int
gen_SYS ()
{
#endif
return 0;
}
-
-int
-gen_TERM ()
-{
- kill (getpid (), SIGTERM);
-return 0;
-}
\f
int
main ()
}
#endif
+ /* Signals are ordered ANSI-standard signals first, other signals
+ second, with signals in each block ordered by their numerical
+ values on a typical POSIX platform. */
+
+ /* SIGINT, SIGILL, SIGABRT, SIGFPE, SIGSEGV and SIGTERM
+ are ANSI-standard signals and are always available. */
+ signal (SIGILL, handle_ILL);
signal (SIGABRT, handle_ABRT);
+ signal (SIGFPE, handle_FPE);
+ signal (SIGSEGV, handle_SEGV);
+ signal (SIGTERM, handle_TERM);
+
+ /* All other signals need preprocessor conditionals. */
#ifdef SIGHUP
signal (SIGHUP, handle_HUP);
#endif
#ifdef SIGQUIT
signal (SIGQUIT, handle_QUIT);
#endif
- signal (SIGILL, handle_ILL);
#ifdef SIGEMT
signal (SIGEMT, handle_EMT);
#endif
- signal (SIGFPE, handle_FPE);
#ifdef SIGBUS
signal (SIGBUS, handle_BUS);
#endif
- signal (SIGSEGV, handle_SEGV);
#ifdef SIGSYS
signal (SIGSYS, handle_SYS);
#endif
signal (62, handle_62);
signal (63, handle_63);
#endif /* lynx */
- signal (SIGTERM, handle_TERM);
x = 0;
{
}
\f
-/* Functions to send signals. These also serve as markers. */
+/* Functions to send signals. These also serve as markers.
+ Ordered ANSI-standard signals first, other signals second,
+ with signals in each block ordered by their numerical values
+ on a typical POSIX platform. */
+
+/* SIGINT, SIGILL, SIGABRT, SIGFPE, SIGSEGV and SIGTERM
+ are ANSI-standard signals and are always available. */
+
+int
+gen_ILL (void)
+{
+ kill (getpid (), SIGILL);
+ return 0;
+}
+
int
gen_ABRT (void)
{
return 0;
}
+int x;
+
+int
+gen_FPE (void)
+{
+ /* The intent behind generating SIGFPE this way is to check the mapping
+ from the CPU exception itself to the signals. It would be nice to
+ do the same for SIGBUS, SIGSEGV, etc., but I suspect that even this
+ test might turn out to be insufficiently portable. */
+
+#if 0
+ /* Loses on the PA because after the signal handler executes we try to
+ re-execute the failing instruction again. Perhaps we could siglongjmp
+ out of the signal handler? */
+ /* The expect script looks for the word "kill"; don't delete it. */
+ return 5 / x; /* and we both started jumping up and down yelling kill */
+#else
+ kill (getpid (), SIGFPE);
+#endif
+ return 0;
+}
+
+int
+gen_SEGV (void)
+{
+ kill (getpid (), SIGSEGV);
+ return 0;
+}
+
+int
+gen_TERM (void)
+{
+ kill (getpid (), SIGTERM);
+ return 0;
+}
+
+/* All other signals need preprocessor conditionals. */
+
int
gen_HUP (void)
{
return 0;
}
-int
-gen_ILL (void)
-{
- kill (getpid (), SIGILL);
-return 0;
-}
-
int
gen_EMT (void)
{
return 0;
}
-int x;
-
-int
-gen_FPE (void)
-{
- /* The intent behind generating SIGFPE this way is to check the mapping
- from the CPU exception itself to the signals. It would be nice to
- do the same for SIGBUS, SIGSEGV, etc., but I suspect that even this
- test might turn out to be insufficiently portable. */
-
-#if 0
- /* Loses on the PA because after the signal handler executes we try to
- re-execute the failing instruction again. Perhaps we could siglongjmp
- out of the signal handler? */
- /* The expect script looks for the word "kill"; don't delete it. */
- return 5 / x; /* and we both started jumping up and down yelling kill */
-#else
- kill (getpid (), SIGFPE);
-#endif
-return 0;
-}
-
int
gen_BUS (void)
{
return 0;
}
-int
-gen_SEGV (void)
-{
- kill (getpid (), SIGSEGV);
-return 0;
-}
-
int
gen_SYS (void)
{
#endif
return 0;
}
-
-int
-gen_TERM (void)
-{
- kill (getpid (), SIGTERM);
-return 0;
-}
\f
int
main ()
}
#endif
+ /* Signals are ordered ANSI-standard signals first, other signals
+ second, with signals in each block ordered by their numerical
+ values on a typical POSIX platform. */
+
+ /* SIGINT, SIGILL, SIGABRT, SIGFPE, SIGSEGV and SIGTERM
+ are ANSI-standard signals and are always available. */
+ signal (SIGILL, handle_ILL);
signal (SIGABRT, handle_ABRT);
+ signal (SIGFPE, handle_FPE);
+ signal (SIGSEGV, handle_SEGV);
+ signal (SIGTERM, handle_TERM);
+
+ /* All other signals need preprocessor conditionals. */
#ifdef SIGHUP
signal (SIGHUP, handle_HUP);
#endif
#ifdef SIGQUIT
signal (SIGQUIT, handle_QUIT);
#endif
- signal (SIGILL, handle_ILL);
#ifdef SIGEMT
signal (SIGEMT, handle_EMT);
#endif
- signal (SIGFPE, handle_FPE);
#ifdef SIGBUS
signal (SIGBUS, handle_BUS);
#endif
- signal (SIGSEGV, handle_SEGV);
#ifdef SIGSYS
signal (SIGSYS, handle_SYS);
#endif
signal (62, handle_62);
signal (63, handle_63);
#endif /* lynx */
- signal (SIGTERM, handle_TERM);
x = 0;
projects / deliverable / binutils-gdb.git / commitdiff
