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authorGuo Ren <ren_guo@c-sky.com>2017-10-15 20:59:34 +0800
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2017-11-19 09:20:11 +0100
commit2fcffe26e815b7125a357c83b59617ab93c16b41 (patch)
treefe5a973dc4bbf38bce8468a4497f5f656f082a9f /libc/sysdeps/linux/csky/__longjmp.S
parent9e38e0aa45cca21d5023d0af94377f0e1e41d2f4 (diff)
csky: port to uclibc-ng
Follow the steps to build c-sky uclibc linux system: 1. git clone https://github.com/c-sky/buildroot.git 2. cd buildroot 3. make qemu_csky_ck810_uclibc_defconfig 4. make Follow the buildroot/board/qemu/csky/readme.txt to run. This buildroot toolchain is pre-build, But you can rebuild the c-sky uclibc-ng alone and install it to the buildroot sysroot manually. We'll try our best to improve the uclibc-ng continuously. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Diffstat (limited to 'libc/sysdeps/linux/csky/__longjmp.S')
-rw-r--r--libc/sysdeps/linux/csky/__longjmp.S39
1 files changed, 39 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/csky/__longjmp.S b/libc/sysdeps/linux/csky/__longjmp.S
new file mode 100644
index 000000000..66ad62617
--- /dev/null
+++ b/libc/sysdeps/linux/csky/__longjmp.S
@@ -0,0 +1,39 @@
+#include <sysdep.h>
+
+ENTRY(__longjmp)
+ ldw sp, (a0, 0)
+ ldw lr, (a0, 4)
+
+ ldw l0, (a0, 8)
+ ldw l1, (a0, 12)
+ ldw l2, (a0, 16)
+ ldw l3, (a0, 20)
+ ldw l4, (a0, 24)
+ ldw l5, (a0, 28)
+
+#ifdef __CSKYABIV2__
+ ldw l6, (a0, 32)
+ ldw l7, (a0, 36)
+ ldw l8, (a0, 40)
+ ldw l9, (a0, 44)
+
+ ldw r26, (a0, 48)
+ ldw r27, (a0, 52)
+ ldw gb, (a0, 56)
+ ldw r29, (a0, 60)
+ ldw r30, (a0, 64)
+ ldw tls, (a0, 68)
+#else
+ ldw gb, (a0, 32)
+#endif
+
+ mov a0, a1
+ cmpnei a1, 0
+ bt 1f
+ movi a0, 1
+1:
+ rts
+
+END(__longjmp)
+libc_hidden_def(__longjmp)
+