diff --git a/cpu-exec.c b/cpu-exec.c
index 25ffb288c1..611f1eab2e 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -1207,14 +1207,20 @@ int cpu_signal_handler(int host_signum, void *pinfo,
 #elif defined(__x86_64__)
 
 #ifdef __NetBSD__
-#define REG_ERR _REG_ERR
-#define REG_TRAPNO _REG_TRAPNO
-
-#define QEMU_UC_MCONTEXT_GREGS(uc, reg)	(uc)->uc_mcontext.__gregs[(reg)]
-#define QEMU_UC_MACHINE_PC(uc)		_UC_MACHINE_PC(uc)
+#define PC_sig(context)       _UC_MACHINE_PC(context)
+#define TRAP_sig(context)     ((context)->uc_mcontext.__gregs[_REG_TRAPNO])
+#define ERROR_sig(context)    ((context)->uc_mcontext.__gregs[_REG_ERR])
+#define MASK_sig(context)     ((context)->uc_sigmask)
+#elif defined(__OpenBSD__)
+#define PC_sig(context)       ((context)->sc_rip)
+#define TRAP_sig(context)     ((context)->sc_trapno)
+#define ERROR_sig(context)    ((context)->sc_err)
+#define MASK_sig(context)     ((context)->sc_mask)
 #else
-#define QEMU_UC_MCONTEXT_GREGS(uc, reg)	(uc)->uc_mcontext.gregs[(reg)]
-#define QEMU_UC_MACHINE_PC(uc)		QEMU_UC_MCONTEXT_GREGS(uc, REG_RIP)
+#define PC_sig(context)       ((context)->uc_mcontext.gregs[REG_RIP])
+#define TRAP_sig(context)     ((context)->uc_mcontext.gregs[REG_TRAPNO])
+#define ERROR_sig(context)    ((context)->uc_mcontext.gregs[REG_ERR])
+#define MASK_sig(context)     ((context)->uc_sigmask)
 #endif
 
 int cpu_signal_handler(int host_signum, void *pinfo,
@@ -1224,15 +1230,17 @@ int cpu_signal_handler(int host_signum, void *pinfo,
     unsigned long pc;
 #ifdef __NetBSD__
     ucontext_t *uc = puc;
+#elif defined(__OpenBSD__)
+    struct sigcontext *uc = puc;
 #else
     struct ucontext *uc = puc;
 #endif
 
-    pc = QEMU_UC_MACHINE_PC(uc);
+    pc = PC_sig(uc);
     return handle_cpu_signal(pc, (unsigned long)info->si_addr,
-                             QEMU_UC_MCONTEXT_GREGS(uc, REG_TRAPNO) == 0xe ?
-                             (QEMU_UC_MCONTEXT_GREGS(uc, REG_ERR) >> 1) & 1 : 0,
-                             &uc->uc_sigmask, puc);
+                             TRAP_sig(uc) == 0xe ?
+                             (ERROR_sig(uc) >> 1) & 1 : 0,
+                             &MASK_sig(uc), puc);
 }
 
 #elif defined(_ARCH_PPC)