linux-user: Add HPPA target_signal.h and target_cpu.h

The cpu.h structure that these manipulate hasn't been defined
yet, but we haven't enabled compilation yet either.

Signed-off-by: Richard Henderson <rth@twiddle.net>

1 files changed, 29 insertions, 0 deletions

diff --git a/linux-user/hppa/target_signal.h b/linux-user/hppa/target_signal.h
new file mode 100644
index 0000000000..e115890b48
--- /dev/null
+++ b/linux-user/hppa/target_signal.h
@@ -0,0 +1,29 @@
+#ifndef HPPA_TARGET_SIGNAL_H
+#define HPPA_TARGET_SIGNAL_H
+
+#include "cpu.h"
+
+/* this struct defines a stack used during syscall handling */
+
+typedef struct target_sigaltstack {
+    abi_ulong ss_sp;
+    int32_t ss_flags;
+    abi_ulong ss_size;
+} target_stack_t;
+
+
+/*
+ * sigaltstack controls
+ */
+#define TARGET_SS_ONSTACK	1
+#define TARGET_SS_DISABLE	2
+
+#define TARGET_MINSIGSTKSZ	2048
+#define TARGET_SIGSTKSZ		8192
+
+static inline abi_ulong get_sp_from_cpustate(CPUHPPAState *state)
+{
+    return state->gr[30];
+}
+
+#endif /* HPPA_TARGET_SIGNAL_H */