[PATCH 18/24] bsd-user/arm/target_arch_signal.h: arm machine context for signals

[Warner Losh <imp@bsdimp.com>]

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Klye Evans <kevans@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
---
 bsd-user/arm/target_arch_signal.h | 36 +++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/bsd-user/arm/target_arch_signal.h b/bsd-user/arm/target_arch_signal.h
index 973183d99c..9fee58ca9c 100644
--- a/bsd-user/arm/target_arch_signal.h
+++ b/bsd-user/arm/target_arch_signal.h
@@ -54,4 +54,40 @@
 #define TARGET_MINSIGSTKSZ  (1024 * 4)                  /* min sig stack size */
 #define TARGET_SIGSTKSZ     (TARGET_MINSIGSTKSZ + 32768)  /* recommended size */
 
+/* arm/arm/machdep.c */
+struct target_sigcontext {
+    target_sigset_t sc_mask;    /* signal mask to retstore */
+    int32_t     sc_onstack;     /* sigstack state to restore */
+    abi_long    sc_pc;          /* pc at time of signal */
+    abi_long    sc_reg[32];     /* processor regs 0 to 31 */
+    abi_long    mullo, mulhi;   /* mullo and mulhi registers */
+    int32_t     sc_fpused;      /* fp has been used */
+    abi_long    sc_fpregs[33];  /* fp regs 0 to 31 & csr */
+    abi_long    sc_fpc_eir;     /* fp exception instr reg */
+    /* int32_t reserved[8]; */
+};
+
+typedef struct {
+    uint32_t    __fp_fpsr;
+    struct {
+        uint32_t    __fp_exponent;
+        uint32_t    __fp_mantissa_hi;
+        uint32_t    __fp_mantissa_lo;
+    }       __fp_fr[8];
+} target__fpregset_t;
+
+typedef struct {
+    uint32_t    __vfp_fpscr;
+    uint32_t    __vfp_fstmx[33];
+    uint32_t    __vfp_fpsid;
+} target__vfpregset_t;
+
+typedef struct target_mcontext {
+    uint32_t        __gregs[TARGET__NGREG];
+    union {
+        target__fpregset_t  __fpregs;
+        target__vfpregset_t __vfpregs;
+    } __fpu;
+} target_mcontext_t;
+
 #endif /* !_TARGET_ARCH_SIGNAL_H_ */
-- 
2.32.0