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authorWaldemar Brodkorb <wbx@openadk.org>2016-04-21 01:25:29 +0200
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2016-06-30 03:24:42 +0200
commitee92c0fe5c1b9d59508273916e2c9a75b68dbc13 (patch)
tree65a22258b12f84325910fc2ad47e2b02696ef593 /libc/sysdeps/linux/nds32/sigaction.c
parentdd46699e46decb7273f44dc2cbf307f096dc39e8 (diff)
nds32: add support for new architecture
Add support for Andes Technology NDS32 architecture. See here http://www.andestech.com/en/index/index.htm for more informaton. Verification of the port from an older uClibc port was done on a sponsored AG101p board. The testsuite only has 5 errors, three are related to an existing bug in dlclose() with LT.old, also happening on cris32 and m68k. Failures to fallocate/posix_fallocate are unresolved. Thanks to Andes Technology sponsoring the hardware and being very helpful while doing the uClibc-ng porting. Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
Diffstat (limited to 'libc/sysdeps/linux/nds32/sigaction.c')
-rw-r--r--libc/sysdeps/linux/nds32/sigaction.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/nds32/sigaction.c b/libc/sysdeps/linux/nds32/sigaction.c
new file mode 100644
index 000000000..1a24c49b4
--- /dev/null
+++ b/libc/sysdeps/linux/nds32/sigaction.c
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2016 Andes Technology, Inc.
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <errno.h>
+#include <signal.h>
+#include <sys/syscall.h>
+#include <string.h>
+#include <bits/kernel_sigaction.h>
+
+#define SA_RESTORER 0x04000000
+
+extern void __default_sa_restorer(void);
+
+int __libc_sigaction(int sig, const struct sigaction *act,
+ struct sigaction *oact)
+{
+ struct sigaction kact;
+
+ if (act && !(act->sa_flags & SA_RESTORER)) {
+ memcpy(&kact, act, sizeof(kact));
+ kact.sa_restorer = __default_sa_restorer;
+ kact.sa_flags |= SA_RESTORER;
+ act = &kact;
+ }
+ /* NB: kernel (as of 2.6.25) will return EINVAL
+ * if sizeof(act->sa_mask) does not match kernel's sizeof(sigset_t) */
+ return __syscall_rt_sigaction(sig, act, oact, sizeof(act->sa_mask));
+}
+
+#ifndef LIBC_SIGACTION
+# ifndef __UCLIBC_HAS_THREADS__
+strong_alias(__libc_sigaction,sigaction)
+libc_hidden_def(sigaction)
+# else
+weak_alias(__libc_sigaction,sigaction)
+libc_hidden_weak(sigaction)
+# endif
+#endif