/* Data structures for user-level context switching. Generic version.
- Copyright (C) 1997-2017 Free Software Foundation, Inc.
+ Copyright (C) 1997-2019 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
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
+ <https://www.gnu.org/licenses/>. */
/* This file's definitions suffice for any platform where all
- the machine-specific state is described in `struct sigcontext'. */
+ the machine-specific state is described in `struct sigcontext', but
+ use of struct sigcontext does not conform to POSIX namespace
+ requirements. */
#ifndef _SYS_UCONTEXT_H
#define _SYS_UCONTEXT_H 1
typedef struct sigcontext mcontext_t;
+#ifdef __USE_MISC
+# define __ctx(fld) fld
+#else
+# define __ctx(fld) __ ## fld
+#endif
+
/* Userlevel context. */
typedef struct ucontext_t
{
- unsigned long int uc_flags;
+ unsigned long int __ctx(uc_flags);
struct ucontext_t *uc_link;
stack_t uc_stack;
mcontext_t uc_mcontext;
sigset_t uc_sigmask;
} ucontext_t;
+#undef __ctx
+
#endif /* sys/ucontext.h */