1 files changed, 109 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/e1/sys/ucontext.h b/libc/sysdeps/linux/e1/sys/ucontext.h
new file mode 100644
index 000000000..3c441dc5c
--- /dev/null
+++ b/libc/sysdeps/linux/e1/sys/ucontext.h
@@ -0,0 +1,109 @@
+/* Copyright (C) 1997, 1999, 2001 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* System V/m68k ABI compliant context switching support.  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H	1
+
+#include <features.h>
+#include <signal.h>
+
+/* Type for general register.  */
+typedef int greg_t;
+
+/* Number of general registers.  */
+#define NGREG	18
+
+/* Container for all general registers.  */
+typedef greg_t gregset_t[NGREG];
+
+/* Number of each register is the `gregset_t' array.  */
+enum
+{
+  R_D0 = 0,
+#define R_D0	R_D0
+  R_D1 = 1,
+#define R_D1	R_D1
+  R_D2 = 2,
+#define R_D2	R_D2
+  R_D3 = 3,
+#define R_D3	R_D3
+  R_D4 = 4,
+#define R_D4	R_D4
+  R_D5 = 5,
+#define R_D5	R_D5
+  R_D6 = 6,
+#define R_D6	R_D6
+  R_D7 = 7,
+#define R_D7	R_D7
+  R_A0 = 8,
+#define R_A0	R_A0
+  R_A1 = 9,
+#define R_A1	R_A1
+  R_A2 = 10,
+#define R_A2	R_A2
+  R_A3 = 11,
+#define R_A3	R_A3
+  R_A4 = 12,
+#define R_A4	R_A4
+  R_A5 = 13,
+#define R_A5	R_A5
+  R_A6 = 14,
+#define R_A6	R_A6
+  R_A7 = 15,
+#define R_A7	R_A7
+  R_SP = 15,
+#define R_SP	R_SP
+  R_PC = 16,
+#define R_PC	R_PC
+  R_PS = 17
+#define R_PS	R_PS
+};
+
+/* Structure to describe FPU registers.  */
+typedef struct fpregset
+{
+  int f_fpregs[8][3];
+  int f_pcr;
+  int f_psr;
+  int f_fpiaddr;
+} fpregset_t;
+
+/* Context to describe whole processor state.  */
+typedef struct
+{
+  int version;
+  gregset_t gregs;
+  fpregset_t fpregs;
+} mcontext_t;
+
+#define MCONTEXT_VERSION 2
+
+/* Userlevel context.  */
+typedef struct ucontext
+{
+  unsigned long int uc_flags;
+  struct ucontext *uc_link;
+  __sigset_t uc_sigmask;
+  stack_t uc_stack;
+  mcontext_t uc_mcontext;
+  long int uc_filler[174];
+} ucontext_t;
+
+#endif /* sys/ucontext.h */