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authorRich Felker <dalias@aerifal.cx>2012-07-11 02:44:14 -0400
committerRich Felker <dalias@aerifal.cx>2012-07-11 02:44:14 -0400
commitfcaec912ed406659832f452e71a6c965308362dd (patch)
tree3164466a2bc9e17b5e34b95fa61bb731692eb4c1 /src
parente864a29090459c98d106f6f74a16b3558e18fdca (diff)
downloadmusl-fcaec912ed406659832f452e71a6c965308362dd.tar.gz
changes to kernel sigaction struct handling in preparation for mips port
Diffstat (limited to 'src')
-rw-r--r--src/signal/restore.c10
-rw-r--r--src/signal/sigaction.c21
2 files changed, 17 insertions, 14 deletions
diff --git a/src/signal/restore.c b/src/signal/restore.c
index e69de29b..873b867e 100644
--- a/src/signal/restore.c
+++ b/src/signal/restore.c
@@ -0,0 +1,10 @@
+/* These functions will not work, but suffice for targets where the
+ * kernel sigaction structure does not actually use sa_restorer. */
+
+void __restore()
+{
+}
+
+void __restore_rt()
+{
+}
diff --git a/src/signal/sigaction.c b/src/signal/sigaction.c
index 5bc9383b..089e9b80 100644
--- a/src/signal/sigaction.c
+++ b/src/signal/sigaction.c
@@ -4,6 +4,7 @@
#include "syscall.h"
#include "pthread_impl.h"
#include "libc.h"
+#include "ksigaction.h"
void __restore(), __restore_rt();
@@ -12,28 +13,20 @@ weak_alias(dummy, __pthread_self_def);
int __libc_sigaction(int sig, const struct sigaction *sa, struct sigaction *old)
{
- struct {
- void *handler;
- unsigned long flags;
- void (*restorer)(void);
- sigset_t mask;
- } ksa, kold;
- long pksa=0, pkold=0;
+ struct k_sigaction ksa, *pksa=0;
if (sa) {
ksa.handler = sa->sa_handler;
ksa.flags = sa->sa_flags | SA_RESTORER;
ksa.restorer = (sa->sa_flags & SA_SIGINFO) ? __restore_rt : __restore;
- ksa.mask = sa->sa_mask;
- pksa = (long)&ksa;
+ memcpy(&ksa.mask, &sa->sa_mask, sizeof ksa.mask);
}
- if (old) pkold = (long)&kold;
__pthread_self_def();
- if (syscall(SYS_rt_sigaction, sig, pksa, pkold, 8))
+ if (syscall(SYS_rt_sigaction, sig, sa?&ksa:0, old?&ksa:0, sizeof ksa.mask))
return -1;
if (old) {
- old->sa_handler = kold.handler;
- old->sa_flags = kold.flags;
- old->sa_mask = kold.mask;
+ old->sa_handler = ksa.handler;
+ old->sa_flags = ksa.flags;
+ memcpy(&old->sa_mask, &ksa.mask, sizeof ksa.mask);
}
return 0;
}