1 files changed, 122 insertions, 0 deletions
diff --git a/libc/ports/sysdeps/am33/sys/ucontext.h b/libc/ports/sysdeps/am33/sys/ucontext.h
new file mode 100644
index 000000000..1615b6368
--- /dev/null
+++ b/libc/ports/sysdeps/am33/sys/ucontext.h
@@ -0,0 +1,122 @@
+/* Copyright 1997, 1999, 2000, 2002 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.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* AM33/2.0 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	28
+
+/* Container for all general registers.  */
+typedef greg_t gregset_t[NGREG];
+
+/* Number of each register is the `gregset_t' array.  */
+enum
+{
+  REG_D0 = 0,
+#define REG_D0	REG_D0
+  REG_D1,
+#define REG_D1	REG_D1
+  REG_D2,
+#define REG_D2	REG_D2
+  REG_D3,
+#define REG_D3	REG_D3
+  REG_A0,
+#define REG_A0	REG_A0
+  REG_A1,
+#define REG_A1	REG_A1
+  REG_A2,
+#define REG_A2	REG_A2
+  REG_A3,
+#define REG_A3	REG_A3
+  REG_E0,
+#define REG_E0	REG_E0
+  REG_E1,
+#define REG_E1	REG_E1
+  REG_E2,
+#define REG_E2	REG_E2
+  REG_E3,
+#define REG_E3	REG_E3
+  REG_E4,
+#define REG_E4	REG_E4
+  REG_E5,
+#define REG_E5	REG_E5
+  REG_E6,
+#define REG_E6	REG_E6
+  REG_E7,
+#define REG_E7	REG_E7
+  REG_LAR,
+#define REG_LAR	REG_LAR
+  REG_LIR,
+#define REG_LIR	REG_LIR
+  REG_MDR,
+#define REG_MDR	REG_MDR
+  REG_MCVF,
+#define REG_MCVF	REG_MCVF
+  REG_MCRL,
+#define REG_MCRL	REG_MCRL
+  REG_MCRH,
+#define REG_MCRH	REG_MCRH
+  REG_MDRQ,
+#define REG_MDRQ	REG_MDRQ
+  REG_SP,
+#define REG_SP	REG_SP
+  REG_EPSW,
+#define REG_EPSW	REG_EPSW
+  REG_PC,
+#define REG_PC	REG_PC
+};
+
+typedef int freg_t;
+
+/* Structure to describe FPU registers.  */
+typedef struct {
+  union {
+    double fp_dregs[16];
+    float fp_fregs[32];
+    freg_t fp_regs[32];
+  } regs;
+  freg_t fpcr;
+} fpregset_t;
+
+/* Context to describe whole processor state.  */
+typedef struct
+  {
+    gregset_t gregs;
+    fpregset_t fpregs;
+  } mcontext_t;
+
+/* 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[5];
+  } ucontext_t;
+
+#endif /* sys/ucontext.h */