path: root/arch/csky/abiv2
diff options
authorGuo Ren <>2019-03-30 23:44:34 +0800
committerGuo Ren <>2019-04-22 13:44:57 +0800
commitf4625ee0e40a5c724bb3f3eb7fd89e491bfd7646 (patch)
tree5e94b471f288c647793f4ad38697d28f81573022 /arch/csky/abiv2
parentf335b10f3b6ca2d11adef95092fff65152c31b48 (diff)
csky: Use in_syscall & forget_syscall instead of r11_sig
We could use regs->sr 16-24 bits to detect syscall: VEC_TRAP0 and r11_sig is no necessary for current implementation. In this patch, we implement the in_syscall and forget_syscall which are inspired from arm & nds32, but csky pt_regs has no syscall_num element and we just set zero to regs->sr's vector-bits-field instead. For ret_from_fork, current task was forked from parent which is in syscall progress and its regs->sr has been already setted with VEC_TRAP0. See: arch/csky/kernel/process.c: copy_thread() Signed-off-by: Guo Ren <>
Diffstat (limited to 'arch/csky/abiv2')
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/csky/abiv2/inc/abi/regdef.h b/arch/csky/abiv2/inc/abi/regdef.h
index c72abb781bdc..652f5ce4c3dd 100644
--- a/arch/csky/abiv2/inc/abi/regdef.h
+++ b/arch/csky/abiv2/inc/abi/regdef.h
@@ -5,8 +5,6 @@
#define syscallid r7
-#define r11_sig r11
#define regs_syscallid(regs) regs->regs[3]