Update.

2000-03-20  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/aix/*: Add initial code for port to AIX 4.3.

1 files changed, 113 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/aix/sys/ucontext.h b/sysdeps/unix/sysv/aix/sys/ucontext.h
new file mode 100644
index 0000000000..c2ebf0cf13
--- /dev/null
+++ b/sysdeps/unix/sysv/aix/sys/ucontext.h
@@ -0,0 +1,113 @@
+/* Copyright (C) 1997, 1998, 1999, 2000 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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H	1
+
+#include <features.h>
+#include <bits/types.h>
+#include <bits/sigset.h>
+
+
+/* Alternate, preferred interface.  */
+typedef struct sigaltstack
+  {
+    void *ss_sp;
+    size_t ss_size;
+    int ss_flags;
+    int __pad[4];
+  } stack_t;
+
+
+/* Forward declaration of AIX type.  */
+typedef struct label_t label_t;
+
+
+
+typedef unsigned int kvmhandle_t;
+typedef struct
+  {
+    unsigned long int __alloc;
+    kvmhandle_t __srval[16];
+  } adspace_t;
+
+
+
+#define _NGPRS 32
+#define _NFPRS 32
+
+struct __mstsafe
+{
+  struct __mstsave *__prev;		/* Previous save area. */
+  label_t *__kjmpbuf;			/* Pointer to saved context.  */
+  char *__stackfix;			/* Stack fix pointer.  */
+  char __intpri;			/* Interrupt priority.  */
+  char __backt;				/* Back-track flag.  */
+  char __rsvd[2];			/* Reserved.  */
+  __pid_t __curid;			/* Copy of curid.  */
+
+  int __excp_type;			/* Exception type for debugger.  */
+  unsigned long int __iar;		/* Instruction address register.  */
+  unsigned long int __msr;		/* Machine state register.  */
+  unsigned long int __cr;		/* Condition register.  */
+  unsigned long int __lr;		/* Link register.  */
+  unsigned long int __ctr;		/* Count register.  */
+  unsigned long int __xer;		/* Fixed point exception.  */
+  unsigned long int __mq;		/* Multiply/quotient register.  */
+  unsigned long int __tid;		/* TID register.  */
+  unsigned long int __fpscr;		/* Floating point status reg.  */
+  char __fpeu;				/* Floating point ever used.  */
+  char __fpinfo;			/* Floating point status flags.  */
+  char __pad[2];			/* Pad to dword boundary.  */
+                                        /* 1 implies state is in mstext */
+  unsigned long int __except[5];	/* exception structure.  */
+  char __pad1[4];			/* Old bus field.  */
+  unsigned long int __o_iar;		/* Old iar (for longjmp excpt).  */
+  unsigned long int __o_toc;		/* Old toc (for longjmp excpt).  */
+  unsigned long int __o_arg1;		/* Old arg1 (for longjmp excpt).  */
+  unsigned long int __excbranch;	/* If not NULL, address to branch
+					   to on exception.  Used by
+					   assembler routines for low
+					   cost exception handling.  */
+  unsigned long int __fpscrx;		/* Software extension to fpscr.  */
+  unsigned long int __o_vaddr;		/* Saved vaddr for vmexception.  */
+  unsigned long int __cachealign[7];	/* Reserved.  */
+  adspace_t __as;			/* Segment registers.  */
+  unsigned long int __gpr[_NGPRS];	/* General purpose registers.  */
+  double __fpr[_NFPRS];			/* Floating point registers.  */
+    };
+
+typedef struct mcontext_t
+  {
+    struct __mstsafe __jmp_context;
+  } mcontext_t;
+
+
+typedef struct ucontext_t
+  {
+    int __sc_onstack;		/* Sigstack state to restore.  */
+    __sigset_t uc_sigmask;	/* The set of signals that are blocked when
+                                   this context is active.  */
+    int __sc_uerror;		/* u_error to restore.  */
+    mcontext_t uc_mcontext;	/* Machine-specific image of saved context.  */
+    struct ucontext_t *uc_link;	/* context resumed after this one returns */
+    stack_t uc_stack;		/* stack used by context */
+    int __pad[4];
+  } ucontext_t;
+
+#endif /* sys/ucontext.h */