Sparc32 BSD user support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5655 c046a42c-6fe2-441c-8c8c-71466251a162

bsd-user/sparc/syscall.h

+struct target_pt_regs {
+	abi_ulong psr;
+	abi_ulong pc;
+	abi_ulong npc;
+	abi_ulong y;
+	abi_ulong u_regs[16];
+};
+
+#define UNAME_MACHINE "sun4"

bsd-user/sparc/target_signal.h

+#ifndef TARGET_SIGNAL_H
+#define TARGET_SIGNAL_H
+
+#include "cpu.h"
+
+/* this struct defines a stack used during syscall handling */
+
+typedef struct target_sigaltstack {
+	abi_ulong ss_sp;
+	abi_long ss_flags;
+	abi_ulong ss_size;
+} target_stack_t;
+
+
+#ifndef UREG_I6
+#define UREG_I6        6
+#endif
+#ifndef UREG_FP
+#define UREG_FP        UREG_I6
+#endif
+
+static inline abi_ulong get_sp_from_cpustate(CPUSPARCState *state)
+{
+    return state->regwptr[UREG_FP];
+}
+
+#endif /* TARGET_SIGNAL_H */