Add support for an alternate signal trampoline; add a sysarch call to register

an alternate trampoling with the kernel.

1 files changed, 6 insertions, 0 deletions

diff --git a/sys/sparc64/include/sysarch.h b/sys/sparc64/include/sysarch.h
index e9db27fb9e4c..104a9e5ae780 100644
--- a/sys/sparc64/include/sysarch.h
+++ b/sys/sparc64/include/sysarch.h
@@ -41,12 +41,18 @@
 #define _MACHINE_SYSARCH_H_
 
 #define	SPARC_UTRAP_INSTALL	1
+#define	SPARC_SIGTRAMP_INSTALL	2
 
 struct sparc_utrap_install_args {
 	int num;
 	const struct sparc_utrap_args *handlers;
 };
 
+struct sparc_sigtramp_install_args {
+	void	*sia_new;
+	void	**sia_old;
+};
+
 struct sparc_utrap_args {
 	utrap_entry_t type;
 	utrap_handler_t new_precise;