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path: root/src/signal/sigaltstack.c
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2019-07-13fix sigaltstack to ignore ss_size with SS_DISABLE, per POSIXJames Y Knight-1/+1
2019-03-05don't reject unknown/future flags in sigaltstack, allow SS_AUTODISARMRich Felker-1/+1
historically, and likely accidentally, sigaltstack was specified to fail with EINVAL if any flag bit other than SS_DISABLE was set. the resolution of Austin Group issue 1187 fixes this so that the requirement is only to fail for SS_ONSTACK (which cannot be set) or "invalid" flags. Linux fails on the kernel side for invalid flags, but historically accepts SS_ONSTACK as a no-op, so it needs to be rejected in userspace still. with this change, the Linux-specific SS_AUTODISARM, provided since commit 9680e1d03a794b0e0d5815c749478228ed40a36d but unusable due to rejection at runtime, is now usable.
2012-09-06use restrict everywhere it's required by c99 and/or posix 2008Rich Felker-1/+1
to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2011-03-20global cleanup to use the new syscall interfaceRich Felker-1/+1
2011-03-10make sigaltstack work (missing macros in signal.h, error conditions)Rich Felker-1/+11
2011-02-12initial check-in, version 0.5.0v0.5.0Rich Felker-0/+8