fix wrong sigaction syscall ABI on mips*, or1k, microblaze, riscv64

[musl] / src / signal / sigaction.c

diff --git a/src/signal/sigaction.c b/src/signal/sigaction.c
index 2203471..e45308f 100644 (file)
--- a/src/signal/sigaction.c
+++ b/src/signal/sigaction.c
@@ -44,8 +44,11 @@ int __libc_sigaction(int sig, const struct sigaction *restrict sa, struct sigact
                        }
                }
                ksa.handler = sa->sa_handler;
-               ksa.flags = sa->sa_flags | SA_RESTORER;
+               ksa.flags = sa->sa_flags;
+#ifdef SA_RESTORER
+               ksa.flags |= SA_RESTORER;
                ksa.restorer = (sa->sa_flags & SA_SIGINFO) ? __restore_rt : __restore;
+#endif
                memcpy(&ksa.mask, &sa->sa_mask, _NSIG/8);
        }
        int r = __syscall(SYS_rt_sigaction, sig, sa?&ksa:0, old?&ksa_old:0, _NSIG/8);