initial import

1 files changed, 71 insertions, 0 deletions

diff --git a/sysdeps/mach/hurd/mips/sigcontext.h b/sysdeps/mach/hurd/mips/sigcontext.h
new file mode 100644
index 0000000000..81d1f25f25
--- /dev/null
+++ b/sysdeps/mach/hurd/mips/sigcontext.h
@@ -0,0 +1,71 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* Signal handlers are actually called:
+   void handler (int sig, int code, struct sigcontext *scp);  */
+
+/* State of this thread when the signal was taken.  */
+struct sigcontext
+  {
+    /* These first members are machine-independent.  */
+
+    int sc_onstack;		/* Nonzero if running on sigstack.  */
+    __sigset_t sc_mask;		/* Blocked signals to restore.  */
+
+    /* MiG reply port this thread is using.  */
+    unsigned int sc_reply_port;
+
+    /* Port this thread is doing an interruptible RPC on.  */
+    unsigned int sc_intr_port;
+
+    /* Error code associated with this signal (interpreted as `error_t').  */
+    int sc_error;
+
+    /* All following members are machine-dependent.  The rest of this
+       structure is written to be laid out identically to:
+    	{
+	  struct mips_thread_state ts;
+	  struct mips_exc_state es;
+	  struct mips_float_state fs;
+	}
+       trampoline.c knows this, so it must be changed if this changes.  */
+#define	sc_mips_thread_state sc_gpr /* Beginning of correspondence.  */
+    int sc_gpr[31];		/* "General" registers; [0] is r1.  */
+    int sc_mdlo, sc_mdhi;	/* Low and high multiplication results.  */
+    int sc_pc;			/* Instruction pointer.  */
+
+    /* struct mips_exc_state */
+#define sc_mips_exc_state sc_cause
+    unsigned int sc_cause;	/* Machine-level trap code.  */
+#define SC_CAUSE_SST	0x00000044
+    unsigned int sc_badvaddr;
+    unsigned int sc_coproc_used; /* Which coprocessors the thread has used.  */
+#define SC_COPROC_USE_COP0	1 /* (by definition) */
+#define SC_COPROC_USE_COP1	2 /* FPA */
+#define	SC_COPROC_USE_FPU	SC_COPROC_USE_COP1
+#define SC_COPROC_USE_COP2	4
+#define SC_COPROC_USE_COP3	8
+
+    /* struct mips_float_state
+       This is only filled in if the SC_COPROC_USE_FPU bit
+       is set in sc_coproc_used.  */
+#define sc_mips_float_state sc_fpr
+    int sc_fpr[32];		/* FP registers.  */
+    int sc_fpcsr;		/* FPU status register.  */
+    int sc_fpeir;		/* FP exception instruction register.  */
+  };