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Cygwin: Implement siglongjmp and sigsetjmp functions.

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* libc/include/machine/setjmp.h (siglongjmp): Declare as function on
	Cygwin.
	(sigsetjmp): Ditto.
	(_longjmp): Mark as noreturn function on Cygwin.

	* common.din (siglongjmp): Export.
	(sigsetjmp): Export.
	* gendef: Change formatting of some comments.
	(sigsetjmp): Implement.
	(siglongjmp): Implement.
	(__setjmpex): x86_64 only: Drop entry point.
	(setjmp): x86_64 only: Store tls stackptr in Frame now, store MXCSR
	and FPUCW registers in Spare, as MSVCRT does.
	(longjmp): x86_64 only: Restore tls stackptr from Frame now, restore
	MXCSR and FPUCW registers from Spare.
	* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.

	* new-features.xml (ov-new2.2): Document sigsetjmp, siglongjmp.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
2015-07-21 17:31:02 +02:00
parent b723ec272e
commit 7c96ab0b43
9 changed files with 148 additions and 25 deletions
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4
winsup/cygwin/release/2.2.0
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@@ -3,6 +3,10 @@ What's new:
- New APIs: getcontext, setcontext, makecontext, swapcontext.
- New functions: sigsetjmp, siglongjmp.
These were only available as macros up to now, but POSIX requires that
siglongjmp has to be available as function.
What changed:
-------------