[PATCH v4 34/36] bsd-user/arm/target_arch_signal.c: arm get_ucontext_sigreturn

[Warner Losh]

Update ucontext to implement sigreturn.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 bsd-user/arm/signal.c             | 9 +++++++++
 bsd-user/arm/target_arch_signal.h | 2 ++
 2 files changed, 11 insertions(+)

diff --git a/bsd-user/arm/signal.c b/bsd-user/arm/signal.c
index d32e3b4560..344ce69cea 100644
--- a/bsd-user/arm/signal.c
+++ b/bsd-user/arm/signal.c
@@ -188,3 +188,12 @@ abi_long set_mcontext(CPUARMState *env, target_mcontext_t 
*mcp, int srflag)
 
     return err;
 }
+
+/* Compare to arm/arm/machdep.c sys_sigreturn() */
+abi_long get_ucontext_sigreturn(CPUARMState *env, abi_ulong target_sf,
+                                abi_ulong *target_uc)
+{
+    *target_uc = target_sf;
+
+    return 0;
+}
diff --git a/bsd-user/arm/target_arch_signal.h 
b/bsd-user/arm/target_arch_signal.h
index 83ecfaafef..5a4a9d5345 100644
--- a/bsd-user/arm/target_arch_signal.h
+++ b/bsd-user/arm/target_arch_signal.h
@@ -91,5 +91,7 @@ abi_long set_sigtramp_args(CPUARMState *regs, int sig,
                            struct target_sigaction *ka);
 abi_long get_mcontext(CPUARMState *regs, target_mcontext_t *mcp, int flags);
 abi_long set_mcontext(CPUARMState *regs, target_mcontext_t *mcp, int srflag);
+abi_long get_ucontext_sigreturn(CPUARMState *regs, abi_ulong target_sf,
+                                abi_ulong *target_uc);
 
 #endif /* !_TARGET_ARCH_SIGNAL_H_ */
-- 
2.33.0