[PULL 30/37] bsd-user/arm/target_arch_signal.h: arm machine context and trapframe for signals

[Warner Losh]

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 bsd-user/arm/target_arch_signal.h | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/bsd-user/arm/target_arch_signal.h 
b/bsd-user/arm/target_arch_signal.h
index 973183d99ca..9527335cc98 100644
--- a/bsd-user/arm/target_arch_signal.h
+++ b/bsd-user/arm/target_arch_signal.h
@@ -54,4 +54,32 @@
 #define TARGET_MINSIGSTKSZ  (1024 * 4)                  /* min sig stack size 
*/
 #define TARGET_SIGSTKSZ     (TARGET_MINSIGSTKSZ + 32768)  /* recommended size 
*/
 
+/*
+ * Floating point register state
+ */
+typedef struct target_mcontext_vfp {
+    abi_ullong  mcv_reg[32];
+    abi_ulong   mcv_fpscr;
+} target_mcontext_vfp_t;
+
+typedef struct target_mcontext {
+    abi_uint    __gregs[TARGET__NGREG];
+
+    /*
+     * Originally, rest of this structure was named __fpu, 35 * 4 bytes
+     * long, never accessed from kernel.
+     */
+    abi_ulong   mc_vfp_size;
+    abi_ptr     mc_vfp_ptr;
+    abi_int     mc_spare[33];
+} target_mcontext_t;
+
+#include "target_os_ucontext.h"
+
+struct target_sigframe {
+    target_siginfo_t    sf_si;  /* saved siginfo */
+    target_ucontext_t   sf_uc;  /* saved ucontext */
+    target_mcontext_vfp_t sf_vfp; /* actual saved VFP context */
+};
+
 #endif /* !_TARGET_ARCH_SIGNAL_H_ */
-- 
2.33.1