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Use SIGTRAP (via G_BREAKPOINT()) if G_DEBUG=fatal-warnings

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On Linux with gdb, it's much more convenient to debug programs using
G_DEBUG=fatal-warnings if we send SIGTRAP instead of abort() by
default.  The default handler for both is to terminate the process.

In particular this makes it more easily possible to debug a warning
that's not the first in a program; you can skip past it and
go to the warning you care about.

The "aborting..." message is removed since it's no longer accurate,
and anyways was never very useful; crashes should show up in ABRT/apport
type crash catching systems.

https://bugzilla.gnome.org/show_bug.cgi?id=648423
This commit is contained in:
Colin Walters
2011-04-26 13:04:25 -04:00
parent 1763c2a575
commit a04efe6afb
1 changed files with 1 additions and 14 deletions
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15
glib/gmessages.c
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@@ -548,14 +548,10 @@ g_logv (const gchar *log_domain,
else
abort ();
#else
#if defined (G_ENABLE_DEBUG) && defined (SIGTRAP)
if (!(test_level & G_LOG_FLAG_RECURSION))
G_BREAKPOINT ();
else
abort ();
#else /* !G_ENABLE_DEBUG || !SIGTRAP */
abort ();
#endif /* !G_ENABLE_DEBUG || !SIGTRAP */
#endif /* !G_OS_WIN32 */
}
@@ -818,7 +814,6 @@ _g_log_fallback_handler (const gchar *log_domain,
#ifndef G_OS_WIN32
gchar pid_string[FORMAT_UNSIGNED_BUFSIZE];
#endif
gboolean is_fatal = (log_level & G_LOG_FLAG_FATAL) != 0;
int fd;
/* we cannot call _any_ GLib functions in this fallback handler,
@@ -855,10 +850,6 @@ _g_log_fallback_handler (const gchar *log_domain,
write_string (fd, level_prefix);
write_string (fd, ": ");
write_string (fd, message);
if (is_fatal)
write_string (fd, "\naborting...\n");
else
write_string (fd, "\n");
}
static void
@@ -927,7 +918,6 @@ g_log_default_handler (const gchar *log_domain,
const gchar *message,
gpointer unused_data)
{
gboolean is_fatal = (log_level & G_LOG_FLAG_FATAL) != 0;
gchar level_prefix[STRING_BUFFER_SIZE], *string;
GString *gstring;
int fd;
@@ -988,10 +978,7 @@ g_log_default_handler (const gchar *log_domain,
g_string_free (msg, TRUE);
}
if (is_fatal)
g_string_append (gstring, "\naborting...\n");
else
g_string_append (gstring, "\n");
g_string_append (gstring, "\n");
string = g_string_free (gstring, FALSE);