add SS_AUTODISARM sigaltstack ss_flags from linux v4.7 to signal.h

only matters if swapcontext is used in a signal handler running on an
altstack, new in linux commit 2a74213838104a41588d86fd5e8d344972891ace
This commit is contained in:
Szabolcs Nagy 2016-08-20 17:04:44 +02:00 committed by Rich Felker
parent c6519d4a71
commit 9680e1d03a
1 changed files with 2 additions and 0 deletions

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@ -239,6 +239,8 @@ void (*sigset(int, void (*)(int)))(int);
#define POLL_HUP 6
#define SS_ONSTACK 1
#define SS_DISABLE 2
#define SS_AUTODISARM (1U << 31)
#define SS_FLAG_BITS SS_AUTODISARM
#endif
#if defined(_BSD_SOURCE) || defined(_GNU_SOURCE)