Libc-1439.40.11.tar.gz

[apple/libc.git] / stdlib / FreeBSD / abort.c

diff --git a/stdlib/FreeBSD/abort.c b/stdlib/FreeBSD/abort.c
index e88755d4faaee371ae845539b140ce42a004c3e7..bac55ad101c90bd200a6a6a0694578dc87ab0be7 100644 (file)
--- a/stdlib/FreeBSD/abort.c
+++ b/stdlib/FreeBSD/abort.c
@@ -27,6 +27,9 @@
  * SUCH DAMAGE.
  */
 
  * SUCH DAMAGE.
  */
 

+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wstrict-prototypes"
+

 #if defined(LIBC_SCCS) && !defined(lint)
 static char sccsid[] = "@(#)abort.c    8.1 (Berkeley) 6/4/93";
 #endif /* LIBC_SCCS and not lint */
 #if defined(LIBC_SCCS) && !defined(lint)
 static char sccsid[] = "@(#)abort.c    8.1 (Berkeley) 6/4/93";
 #endif /* LIBC_SCCS and not lint */


@@ -45,11 +48,16 @@ __FBSDID("$FreeBSD: src/lib/libc/stdlib/abort.c,v 1.11 2007/01/09 00:28:09 imp E
 
 #include "libc_private.h"
 
 
 #include "libc_private.h"
 

-#include "CrashReporterClient.h"
+#if __has_include(<CrashReporterClient.h>)
+#include <CrashReporterClient.h>
+#else
+#define CRGetCrashLogMessage() NULL
+#define CRSetCrashLogMessage(...)
+#endif

 #include "_simple.h"
 
 extern void (*__cleanup)();
 #include "_simple.h"
 
 extern void (*__cleanup)();

-extern void __abort(void) __dead2;
+extern void __abort(void) __cold __dead2;

 
 #define TIMEOUT        10000   /* 10 milliseconds */
 
 
 #define TIMEOUT        10000   /* 10 milliseconds */
 


@@ -75,6 +83,17 @@ abort()
         */
        sigdelset(&act.sa_mask, SIGABRT);
 
         */
        sigdelset(&act.sa_mask, SIGABRT);
 

+       /*
+        * Don't block SIGSEGV since we might trigger a segfault if the pthread
+        * struct is corrupt. The end user behavior is that the program will
+        * terminate with a SIGSEGV instead of a SIGABRT which is acceptable. If
+        * the user registers a SIGSEGV handler, then they are responsible for
+        * dealing with any corruption themselves and abort may not work.
+        * rdar://48853131
+        */
+       sigdelset(&act.sa_mask, SIGSEGV);
+       sigdelset(&act.sa_mask, SIGBUS);
+

        /* <rdar://problem/7397932> abort() should call pthread_kill to deliver a signal to the aborting thread 
         * This helps gdb focus on the thread calling abort()
         */
        /* <rdar://problem/7397932> abort() should call pthread_kill to deliver a signal to the aborting thread 
         * This helps gdb focus on the thread calling abort()
         */


@@ -140,7 +159,7 @@ __abort()
        __builtin_trap();
 }
 
        __builtin_trap();
 }
 

-__private_extern__ void
+void

 abort_report_np(const char *fmt, ...)
 {
        _SIMPLE_STRING s;
 abort_report_np(const char *fmt, ...)
 {
        _SIMPLE_STRING s;


@@ -155,3 +174,4 @@ abort_report_np(const char *fmt, ...)
                CRSetCrashLogMessage(fmt); /* the format string is better than nothing */
        abort();
 }
                CRSetCrashLogMessage(fmt); /* the format string is better than nothing */
        abort();
 }

+#pragma clang diagnostic pop