or1k: Linux ABI

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

2 files changed, 54 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/or1k/sys/ucontext.h b/sysdeps/unix/sysv/linux/or1k/sys/ucontext.h
new file mode 100644
index 0000000000..6f334c6455
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/or1k/sys/ucontext.h
@@ -0,0 +1,53 @@
+/* ucontext_t definition, OpenRISC version.
+   Copyright (C) 2022 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, see
+   <https://www.gnu.org/licenses/>.  */
+
+/* System V/OpenRISC compliant context switching support.  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H	1
+
+#include <features.h>
+
+#include <bits/types/sigset_t.h>
+#include <bits/types/stack_t.h>
+
+/* Number of general registers.  */
+#define __NGREG	32
+#ifdef __USE_MISC
+# define NGREG	__NGREG
+#endif
+
+/* Context to describe whole processor state.  */
+typedef struct
+  {
+    unsigned long int __gprs[__NGREG];
+    unsigned long int __pc;
+    unsigned long int __sr;
+  } mcontext_t;
+
+/* Userlevel context.  */
+typedef struct ucontext_t
+  {
+    unsigned long int __uc_flags;
+    struct ucontext_t *uc_link;
+    stack_t uc_stack;
+    mcontext_t uc_mcontext;
+    sigset_t uc_sigmask;
+  } ucontext_t;
+
+#endif /* sys/ucontext.h */
diff --git a/sysdeps/unix/sysv/linux/or1k/sys/user.h b/sysdeps/unix/sysv/linux/or1k/sys/user.h
new file mode 100644
index 0000000000..c871f1a03d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/or1k/sys/user.h
@@ -0,0 +1 @@
+/* This file is not needed, but in practice gdb might try to include it.  */