FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=releng%2F12.4 2020-09-11T10:05:44Z 2020-09-11T10:05:44Z Konstantin Belousov kib@FreeBSD.org 2020-09-11T10:05:44Z urn:sha1:8d0174d29d37606c263ff12df0d58fb70d18dc89 rtld: Handle ELF dso with program headers outside the first page. PR: 229708 2020-04-18T03:14:16Z Konstantin Belousov kib@FreeBSD.org 2020-04-18T03:14:16Z urn:sha1:b55128c5ff7c690d9ba7f1701ed92e159fda68a9 Make p_vaddr % p_align == p_offset % p_align for (some) TLS segments. 2019-12-20T01:00:18Z Konstantin Belousov kib@FreeBSD.org 2019-12-20T01:00:18Z urn:sha1:0155655486d277dc1f469f4aeb3b92b0810c51d6 rtld: make checks for mmap(2) failures compliant with documentation. 2019-02-11T15:02:02Z Konstantin Belousov kib@FreeBSD.org 2019-02-11T15:02:02Z urn:sha1:adbc40826e9055a56964e821866081911522d819 Untangle jemalloc and mutexes initialization. The merge includes required warnings cleanup by arichardson, both to avoid conflicts and to make rtld_malloc.c compilable with the libthr WARNS settings. 2017-11-27T15:25:02Z Pedro F. Giffuni pfg@FreeBSD.org 2017-11-27T15:25:02Z urn:sha1:e6209940dee96d8deed5ee7c2b2663512dd55db9 Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended. 2017-06-24T17:04:27Z Konstantin Belousov kib@FreeBSD.org 2017-06-24T17:04:27Z urn:sha1:a36deee3d3e5a5048de8cff2f33166579b98fb5e Rtld checks and use old MAP_ANON/PROT_NONE method of creating gap if running on old kernel. Reviewed by: alc, markj Tested by: pho, Qualys Sponsored by: The FreeBSD Foundation MFC after: 1 week 2017-05-15T18:47:25Z Konstantin Belousov kib@FreeBSD.org 2017-05-15T18:47:25Z urn:sha1:9104191924e721f6bc70e731fa4954a71958e73e If the mapped object is linked at specific address, we must obey it. If AT_EXECFD is not used, only in-kernel ELF image activator needed to keep the mapping address, since only binaries are linked at the fixed address, and binaries are mapped by kernel in this case. Reviewed by: emaste Sponsored by: The FreeBSD Foundation MFC after: 2 weeks X-Differential revision: https://reviews.freebsd.org/D10701 2016-03-02T16:36:24Z Konstantin Belousov kib@FreeBSD.org 2016-03-02T16:36:24Z urn:sha1:ca8c8dc3ebe7a92dd6d7951231769154a0454b52 segment. According to gABI spec, presence of the tag indicates that dynamic linker must be prepared to handle relocations against any read-only segment, not only the segment which we, somewhat arbitrary, declared the text. For each read-only segment, add write permission before relocs are processed, and return to the mapping mode requested by the phdr, after relocs are done. Reported, tested, and reviewed by: emaste PR: 207631 Sponsored by: The FreeBSD Foundation MFC after: 2 weeks 2016-01-30T04:16:05Z Maxim Sobolev sobomax@FreeBSD.org 2016-01-30T04:16:05Z urn:sha1:7fd852f860b047f0e540360760aa4c95fd9285b2 time ago, but for some reason it was not. Basically, without this change dlopen(3)'ing an empty .so file would just cause application to dump core with SIGSEGV. Make sure the file has enough data for at least the ELF header before mmap'ing it. Add a test case to check that dlopen an empty file return an error. There were a separate discussion as to whether it should be SIGBUS instead when you try to access region mapped from an empty file, but it's definitely SIGSEGV now, so if anyone want to check that please be my guest. Reviewed by: mjg, cem MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D5112 2015-10-14T18:29:21Z Konstantin Belousov kib@FreeBSD.org 2015-10-14T18:29:21Z urn:sha1:bd56d410c482895496914285a1fcf7f6344bd1b6 image. The dynamic linker still requires that program headers of the executable or dso are mapped by a PT_LOAD segment. Reviewed by: emaste, jhb Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Differential revision: https://reviews.freebsd.org/D3871