X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=opcodes%2Fsysdep.h;h=beca164a9736c83caec111ebe0461278fb7a81b3;hb=1047201fd0f402428bb3331638a198413f97f476;hp=b09d19eb31526e7b91503224561c6ee5f090a714;hpb=df7b86aa4cb63ce86e60949b8160438bc0f9e389;p=deliverable%2Fbinutils-gdb.git

diff --git a/opcodes/sysdep.h b/opcodes/sysdep.h
index b09d19eb31..beca164a97 100644
--- a/opcodes/sysdep.h
+++ b/opcodes/sysdep.h
@@ -1,5 +1,5 @@
 /* Random host-dependent support code.
-   Copyright 1995, 1997, 2000, 2005, 2007, 2012 Free Software Foundation, Inc.
+   Copyright (C) 1995-2016 Free Software Foundation, Inc.
    Written by Ken Raeburn.
 
    This file is part of the GNU opcodes library.
@@ -55,3 +55,17 @@
 #if !HAVE_DECL_STPCPY
 extern char *stpcpy (char *__dest, const char *__src);
 #endif
+
+/* Use sigsetjmp/siglongjmp without saving the signal mask if possible.
+   It is faster than setjmp/longjmp on systems where the signal mask is
+   saved.  */
+
+#if defined(HAVE_SIGSETJMP)
+#define OPCODES_SIGJMP_BUF		sigjmp_buf
+#define OPCODES_SIGSETJMP(buf)		sigsetjmp((buf), 0)
+#define OPCODES_SIGLONGJMP(buf,val)	siglongjmp((buf), (val))
+#else
+#define OPCODES_SIGJMP_BUF		jmp_buf
+#define OPCODES_SIGSETJMP(buf)		setjmp(buf)
+#define OPCODES_SIGLONGJMP(buf,val)	longjmp((buf), (val))
+#endif