* strace no longer resets SIGCHLD handler in tracees to the default action.
* When traced command is terminated by a blocked signal, strace unblocks
that signal to ensure its own termination with the same signal.
+ * Fixed corner cases in decoding of old sigaction syscall.
Noteworthy changes in release 4.17 (2017-05-24)
===============================================
struct old_sigaction {
/* sa_handler may be a libc #define, need to use other name: */
-#ifdef MIPS
+#if defined MIPS
unsigned int sa_flags;
unsigned long sa_handler__;
- /* Kernel treats sa_mask as an array of longs. */
- unsigned long sa_mask[NSIG / sizeof(long)];
+ unsigned long sa_mask;
+#elif defined ALPHA
+ unsigned long sa_handler__;
+ unsigned long sa_mask;
+ unsigned int sa_flags;
#else
unsigned long sa_handler__;
unsigned long sa_mask;
unsigned long sa_flags;
-#endif /* !MIPS */
-#if HAVE_SA_RESTORER
unsigned long sa_restorer;
#endif
-};
+}
+#ifdef ALPHA
+ ATTRIBUTE_PACKED
+#endif
+;
struct old_sigaction32 {
/* sa_handler may be a libc #define, need to use other name: */
uint32_t sa_handler__;
uint32_t sa_mask;
uint32_t sa_flags;
-#if HAVE_SA_RESTORER
uint32_t sa_restorer;
-#endif
};
static void
memset(&sa, 0, sizeof(sa));
sa.sa_handler__ = sa32.sa_handler__;
sa.sa_flags = sa32.sa_flags;
-#if HAVE_SA_RESTORER && defined SA_RESTORER
sa.sa_restorer = sa32.sa_restorer;
-#endif
sa.sa_mask = sa32.sa_mask;
} else
#endif
tprints("{sa_handler=");
print_sa_handler(sa.sa_handler__);
tprints(", sa_mask=");
-#ifdef MIPS
- tprintsigmask_addr("", sa.sa_mask);
-#else
tprintsigmask_val("", sa.sa_mask);
-#endif
tprints(", sa_flags=");
printflags(sigact_flags, sa.sa_flags, "SA_???");
-#if HAVE_SA_RESTORER && defined SA_RESTORER
- if (sa.sa_flags & SA_RESTORER) {
+#if !(defined ALPHA || defined MIPS)
+ if (sa.sa_flags & 0x04000000U) {
tprints(", sa_restorer=");
printaddr(sa.sa_restorer);
}