383ff5fc47
On x86_64, RtlCaptureContext() uses fxsave to save FPU/MMX/SSE state. fxsave requires that the destination address is 16-byte aligned, or it will fault. CONTEXT is already annotated __attribute__ ((aligned (16))), do the same with struct _mcontext. Rearrange ucontext_t so that it's struct _mcontext element is also correctly aligned. * include/cygwin/signal.h (struct __mcontext): 16-byte align. * include/sys/ucontext.h (ucontext_t): Ditto. Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
27 lines
561 B
C
27 lines
561 B
C
/* ucontext.h
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Copyright 2015 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#ifndef _SYS_UCONTEXT_H_
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#define _SYS_UCONTEXT_H_
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#include <signal.h>
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typedef struct __mcontext mcontext_t;
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typedef __attribute__ ((aligned (16))) struct __ucontext {
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mcontext_t uc_mcontext;
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struct __ucontext *uc_link;
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sigset_t uc_sigmask;
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stack_t uc_stack;
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unsigned long int uc_flags;
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} ucontext_t;
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#endif /* !_SYS_UCONTEXT_H_ */
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