src-test/usr.bin/elfctl, branch mainFreeBSD source treehttps://cgit-dev.freebsd.org/src-test/atom?h=main2020-12-18T23:14:39ZAdd ELF flag to disable ASLR stack gap.2020-12-18T23:14:39ZKonstantin Belousovkib@FreeBSD.org2020-12-18T23:14:39Zurn:sha1:673e2dd652156342009930cf1f7d15623e4a543a
Also centralize and unify checks to enable ASLR stack gap in a new
helper exec_stackgap().
PR: 239873
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Reserve FreeBSD ELF feature control bit LA48 to control VA layout on amd64.2020-08-23T19:47:27ZKonstantin Belousovkib@FreeBSD.org2020-08-23T19:47:27Zurn:sha1:bc6f027a39c4c7c2758de8f9d185653cad757784
Tested by: pho
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D25273
elfctl: update earliest FreeBSD revision to 12.22020-05-05T21:50:52ZEd Masteemaste@FreeBSD.org2020-05-05T21:50:52Zurn:sha1:4ac4a7f80b2be339371421b9972535ae5fc473d4
elfctl has been merged to stable/12, and so will appear in FreeBSD 12.2
Reported by: Dewayne Geraghty
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
elfctl: remove memory leak2020-03-11T13:51:01ZEd Masteemaste@FreeBSD.org2020-03-11T13:51:01Zurn:sha1:b7a9e9d6b2b0e87520aaffbf03a925ee402c2987
CID: 1420356
Reported by: Coverity Scan
Sponsored by: The FreeBSD Foundation
Reserve WXNEEDED ELF feature control flag2020-03-04T18:21:30ZEd Masteemaste@FreeBSD.org2020-03-04T18:21:30Zurn:sha1:d06e23f9d9dd0d5a4c205d7a0e6413c5d998a390
This will be used to tag binaries that require W+X mappings, in advance
of the ability to prevent W^X in mmap/mprotect.
There is still some discussion about the flag's name, but the ABI won't
change even if the name does (as kib pointed out in the review).
Reviewed by: csjp, kib
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D23909
elfctl: check read return value2020-03-04T16:57:23ZEd Masteemaste@FreeBSD.org2020-03-04T16:57:23Zurn:sha1:76cd520d45d35cf485d4deeb148842ae6249107a
CID: 1420212, 1420213
Reported by: Coverity Scan
Sponsored by: The FreeBSD Foundation
elfctl: style(9): use C99 uintX_t types2020-03-04T16:53:49ZEd Masteemaste@FreeBSD.org2020-03-04T16:53:49Zurn:sha1:87a920c06594e5f02a3fbbd52db3e5a0c2021a9a
Sponsored by: The FreeBSD Foundation
elfctl: tiny style(9) cleanup, use bool where appropriate2020-03-02T14:34:26ZEd Masteemaste@FreeBSD.org2020-03-02T14:34:26Zurn:sha1:ba6d70a06504b0547fc3f927399598fe8afb73cbelfctl: initialize features2020-03-02T04:22:38ZKyle Evanskevans@FreeBSD.org2020-03-02T04:22:38Zurn:sha1:fdafb99d81ae0ee65863ba6c419c50b7a39d5b51
GCC points out a couple levels down in convert_to_features that this may be
used uninitialized. Indeed, this is true- initialize it to NULL so that we
at least deref a null pointer.
Move ELF feature note tool to usr.bin/elfctl2020-03-02T02:36:41ZEd Masteemaste@FreeBSD.org2020-03-02T02:36:41Zurn:sha1:79bfb05b074873a2c02f0733456ecf269656bef6
elfctl is a tool for modifying the NT_FREEBSD_FEATURE_CTL ELF note,
which contains a set of flags for enabling or disabling vulnerability
mitigations and other features.
Reviewed by: csjp, kib
MFC after: 2 weeks
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D23910