Author: emaste Date: Tue Nov 20 20:59:49 2018 New Revision: 340701 URL: https://svnweb.freebsd.org/changeset/base/340701
Log: Add NT_FREEBSD_FEATURE_CTL ELF note to csu This note will be used to allow binaries to opt out of, or in to, upcoming vulnerability mitigation and other features. It is not yet connected but being added now to facilitate testing and ensure compatibility with existing kernels and tools. Reviewed by: brooks, jhb, kib, markj Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D17438 Modified: head/lib/csu/common/crtbrand.c Modified: head/lib/csu/common/crtbrand.c ============================================================================== --- head/lib/csu/common/crtbrand.c Tue Nov 20 20:40:10 2018 (r340700) +++ head/lib/csu/common/crtbrand.c Tue Nov 20 20:59:49 2018 (r340701) @@ -67,3 +67,18 @@ static const struct { .name = NOTE_FREEBSD_VENDOR, .desc = __FreeBSD_version }; + +static const struct { + int32_t namesz; + int32_t descsz; + int32_t type; + char name[sizeof(NOTE_FREEBSD_VENDOR)]; + uint32_t desc[1]; +} crt_feature_ctl __attribute__ ((section (NOTE_SECTION), + aligned(4))) __used = { + .namesz = sizeof(NOTE_FREEBSD_VENDOR), + .descsz = sizeof(uint32_t), + .type = NT_FREEBSD_FEATURE_CTL, + .name = NOTE_FREEBSD_VENDOR, + .desc = { 0 } +}; _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
