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authorDale S. Rahn <rahnds@cvs.openbsd.org>1997-02-05 01:33:56 +0000
committerDale S. Rahn <rahnds@cvs.openbsd.org>1997-02-05 01:33:56 +0000
commitb4e0a7c0dc980746d2892b0b61e23f4d486c70c2 (patch)
treeb9d5fcccc10b71891c325c4e67c30bbaac605b4e /sys/arch/powerpc/include/signal.h
parent5c6f154c6db22f2fafc5d4afc4437ca2757cbf78 (diff)
Siginfo changes.
Diffstat (limited to 'sys/arch/powerpc/include/signal.h')
-rw-r--r--sys/arch/powerpc/include/signal.h32
1 files changed, 24 insertions, 8 deletions
diff --git a/sys/arch/powerpc/include/signal.h b/sys/arch/powerpc/include/signal.h
index 7f573209ac3..3c629efde6c 100644
--- a/sys/arch/powerpc/include/signal.h
+++ b/sys/arch/powerpc/include/signal.h
@@ -1,3 +1,4 @@
+/* $OpenBSD: signal.h,v 1.2 1997/02/05 01:33:53 rahnds Exp $ */
/* $NetBSD: signal.h,v 1.1 1996/09/30 16:34:34 ws Exp $ */
/*
@@ -33,19 +34,34 @@
#ifndef _MACHINE_SIGNAL_H_
#define _MACHINE_SIGNAL_H_
-#include <machine/frame.h>
-
typedef int sig_atomic_t;
+/*
+ * We have to save all registers on every trap, because
+ * 1. user could attach this process every time
+ * 2. we must be able to restore all user registers in case of fork
+ * Actually, we do not save the fp registers on trap, since
+ * these are not used by the kernel. They are saved only when switching
+ * between processes using the FPU.
+ *
+ * Change ordering to cluster together these register_t's. XXX
+ */
+struct trapframe {
+ register_t fixreg[32];
+ register_t lr;
+ int cr;
+ int xer;
+ register_t ctr;
+ register_t srr0;
+ register_t srr1;
+ register_t dar; /* dar & dsisr are only filled on a DSI trap */
+ int dsisr;
+ int exc;
+};
+
struct sigcontext {
int sc_onstack; /* saved onstack flag */
int sc_mask; /* saved signal mask */
struct trapframe sc_frame; /* saved registers */
};
-
-struct sigframe {
- int sf_signum;
- int sf_code;
- struct sigcontext sf_sc;
-};
#endif /* _MACHINE_SIGNAL_H_ */