diff options
Diffstat (limited to 'sys-libs')
| -rw-r--r-- | sys-libs/libnih/ChangeLog | 8 | ||||
| -rw-r--r-- | sys-libs/libnih/Manifest | 30 | ||||
| -rw-r--r-- | sys-libs/libnih/files/libnih-1.0.3-signal-race.patch | 60 | ||||
| -rw-r--r-- | sys-libs/libnih/libnih-1.0.3-r3.ebuild | 47 |
4 files changed, 130 insertions, 15 deletions
diff --git a/sys-libs/libnih/ChangeLog b/sys-libs/libnih/ChangeLog index 3fa5279d16db..b49589bb504b 100644 --- a/sys-libs/libnih/ChangeLog +++ b/sys-libs/libnih/ChangeLog @@ -1,6 +1,12 @@ # ChangeLog for sys-libs/libnih # Copyright 1999-2015 Gentoo Foundation; Distributed under the GPL v2 -# $Header: /var/cvsroot/gentoo-x86/sys-libs/libnih/ChangeLog,v 1.6 2015/03/05 21:18:32 vapier Exp $ +# $Header: /var/cvsroot/gentoo-x86/sys-libs/libnih/ChangeLog,v 1.7 2015/05/21 08:28:24 vapier Exp $ + +*libnih-1.0.3-r3 (21 May 2015) + + 21 May 2015; Mike Frysinger <vapier@gentoo.org> + +files/libnih-1.0.3-signal-race.patch, +libnih-1.0.3-r3.ebuild: + Workaround from Chromium OS for race in signal loop processing. *libnih-1.0.3-r2 (05 Mar 2015) diff --git a/sys-libs/libnih/Manifest b/sys-libs/libnih/Manifest index 93e90d1320bf..1c1efae6578b 100644 --- a/sys-libs/libnih/Manifest +++ b/sys-libs/libnih/Manifest @@ -3,26 +3,28 @@ Hash: SHA256 AUX libnih-1.0.3-optional-dbus.patch 1162 SHA256 93e81914a402ebc512c7df46e00f85b54ed073a66fcf9fe465cb58d757546abf SHA512 bd979f8e9d27d775e12b3a93082084b8837bc9eb4f48476c3356aa4b4f865eda517e6fcf90f5575686dbcdc0fef4a21c640e413d9d3611bb1f1077bfa9fd8c86 WHIRLPOOL 2eb2421f74c9ced344791ab3477035b5e71516962ebfc886f4a21837977854092aec28e68ba81345305f06ee00cf8e466bb5d3863c75d0291c0a9992aba17a6a AUX libnih-1.0.3-pkg-config.patch 2491 SHA256 cefe32c74c2c23f991e78bb8eaf97da8bcd1b4f252c1aed334e75027568f24d7 SHA512 b99d580f4487cf3d25fa37f3f7b62ce32d9df80c6c0b01ad04b6850215ec0cc24cfea48aaf8ff89afe28db239b5ed212f139e86353d9991152d488c6edce5017 WHIRLPOOL e6a6f4c2d88e4e2da3cbdba8f4b2a43f608ba7e0042f63c6b881653d23a51527d2061bea56924bb624bee5751bea69f4bdc4a206aa32ad62abcf29ea3c6999bc +AUX libnih-1.0.3-signal-race.patch 2081 SHA256 e7c67f06c0812cabf4f2af05f8d66ecd8819278416f29e7dd6122d9091b6368e SHA512 5367cb0c6382004cc2a829b9b71f0c02a09e4983940afac90c4c5c0bfbda53fb36a6cc7e38ede7a895ce28f99a4f69e89392ebaadefdc536eb7efa90c2426ff8 WHIRLPOOL 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new file mode 100644 index 000000000000..4cba5ae4ded3 --- /dev/null +++ b/sys-libs/libnih/files/libnih-1.0.3-signal-race.patch @@ -0,0 +1,60 @@ +https://bugs.launchpad.net/libnih/+bug/518921 + +fix race in signal processing leading to lost signals + +The current loop will walk all signals one by one and run the handler +for it if any signals were pending. Then it clears the array. But if +a signal comes in for an earlier checked signal, it will get clobbered +when the final clear runs. + +Change the logic so that we only clear entries for signals whose handler +we explicitly call. If a different signal comes in, we'll process it +the next time around. + +This was discovered & triaged by Jeffy Chen from Rockchip. + +=== modified file 'nih/signal.c' +--- nih/signal.c 2009-06-23 09:29:37 +0000 ++++ nih/signal.c 2015-05-21 08:12:11 +0000 +@@ -337,17 +337,37 @@ + + nih_signal_init (); + ++ /* Since this poller runs w/out signals masked, we do not want to try ++ * and clear any other signals (like zeroing the caught array at the ++ * end). If we do that, we open a race: ++ * - Walk the list of signals. ++ * - First one is not set so we move on to the second one. ++ * - First signal comes in while processing second and increments the ++ * caught array entry. ++ * - Finish walking the whole list. ++ * - Zero out the whole list and thus throw away the first signal. ++ * Since the signal handlers can take any length of time, this race ++ * can be open for a variable amount of time. ++ */ ++ + NIH_LIST_FOREACH_SAFE (nih_signals, iter) { + NihSignal *signal = (NihSignal *)iter; + + if (! signals_caught[signal->signum]) + continue; + ++ /* Now that we know we're going to process this signal, clear ++ * out all pending counts for it. There is a slight race here ++ * where the same signal can come in, but the API has never ++ * guaranteed exact coverage since POSIX does not provide it -- ++ * more than one signal can be collapsed into one event. All ++ * we can guarantee is that we'll notice signals that come in ++ * once the handler runs. ++ */ ++ signals_caught[signal->signum] = 0; ++ + signal->handler (signal->data, signal); + } +- +- for (s = 0; s < NUM_SIGNALS; s++) +- signals_caught[s] = 0; + } + + + diff --git a/sys-libs/libnih/libnih-1.0.3-r3.ebuild b/sys-libs/libnih/libnih-1.0.3-r3.ebuild new file mode 100644 index 000000000000..ccd1f5ade940 --- /dev/null +++ b/sys-libs/libnih/libnih-1.0.3-r3.ebuild @@ -0,0 +1,47 @@ +# Copyright 1999-2015 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 +# $Header: /var/cvsroot/gentoo-x86/sys-libs/libnih/libnih-1.0.3-r3.ebuild,v 1.1 2015/05/21 08:28:24 vapier Exp $ + +EAPI="4" + +inherit versionator eutils autotools toolchain-funcs multilib flag-o-matic + +DESCRIPTION="Light-weight 'standard library' of C functions" +HOMEPAGE="https://launchpad.net/libnih" +SRC_URI="http://launchpad.net/${PN}/$(get_version_component_range 1-2)/${PV}/+download/${P}.tar.gz" + +LICENSE="GPL-2" +SLOT="0" +KEYWORDS="~amd64 ~arm ~arm64 ~mips ~x86" +IUSE="+dbus nls static-libs test +threads" + +RDEPEND="dbus? ( dev-libs/expat >=sys-apps/dbus-1.2.16 )" +DEPEND="${RDEPEND} + sys-devel/gettext + virtual/pkgconfig + test? ( dev-util/valgrind )" + +src_prepare() { + epatch "${FILESDIR}"/${PN}-1.0.3-optional-dbus.patch + epatch "${FILESDIR}"/${PN}-1.0.3-pkg-config.patch + epatch "${FILESDIR}"/${PN}-1.0.3-signal-race.patch + eautoreconf +} + +src_configure() { + append-lfs-flags + econf \ + $(use_with dbus) \ + $(use_enable nls) \ + $(use_enable static-libs static) \ + $(use_enable threads) \ + $(use_enable threads threading) +} + +src_install() { + default + + # we need to be in / because upstart needs libnih + gen_usr_ldscript -a nih $(use dbus && echo nih-dbus) + use static-libs || rm "${ED}"/usr/$(get_libdir)/*.la +} |