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Provide ucontext to signal handlers

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Add ucontext.h header, defining ucontext_t and mcontext_t types.

Provide sigaction sighandlers with a ucontext_t parameter, containing stack and
context information.

	* include/sys/ucontext.h : New header.
	* include/ucontext.h : Ditto.
	* exceptions.cc (call_signal_handler): Provide ucontext_t
	parameter to signal handler function.

Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
This commit is contained in:
Jon TURNEY
2015-03-30 20:31:13 +01:00
committed by Corinna Vinschen
parent 38a8d3e216
commit 9e8932d6da
4 changed files with 70 additions and 2 deletions
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26
winsup/cygwin/include/sys/ucontext.h Normal file
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/* ucontext.h
Copyright 2015 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#ifndef _SYS_UCONTEXT_H_
#define _SYS_UCONTEXT_H_
#include <signal.h>
typedef struct __mcontext mcontext_t;
typedef struct __ucontext {
struct __ucontext *uc_link;
sigset_t uc_sigmask;
stack_t uc_stack;
mcontext_t uc_mcontext;
unsigned long int uc_flags;
} ucontext_t;
#endif /* !_SYS_UCONTEXT_H_ */