Signed-off-by: Guo Ren <ren_...@c-sky.com>
---
libc/sysdeps/linux/csky/setjmp.S | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)
diff --git a/libc/sysdeps/linux/csky/setjmp.S b/libc/sysdeps/linux/csky/setjmp.S
index 03b402b..fb4b156 100644
--- a/libc/sysdeps/linux/csky/setjmp.S
+++ b/libc/sysdeps/linux/csky/setjmp.S
@@ -7,7 +7,7 @@
#include <sysdep.h>
-ENTRY(setjmp)
+ENTRY(__sigsetjmp)
stw sp, (a0, 0)
stw lr, (a0, 4)
@@ -43,8 +43,20 @@ ENTRY(setjmp)
ldw lr, (sp, 0)
addi sp, 8
rts
+END(__sigsetjmp)
+
+/*
+ * Support bsd-setjmp and bsd-_setjmp with tail-call method.
+ * Use br to keep the lr-reg, we must return to the Caller not setjmp.
+ * And we will rts by __sigsetjmp.
+ */
+ENTRY(setjmp)
+ movi a1, 1
+ br __sigsetjmp
END(setjmp)
-strong_alias(setjmp, __sigsetjmp)
-strong_alias(setjmp, _setjmp)
+ENTRY(_setjmp)
+ movi a1, 0
+ br __sigsetjmp
+END(_setjmp)
--
2.7.4
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