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[Bug ld/20241] plugin lto + archive: invalid read access might cause SIG
From: |
cvs-commit at gcc dot gnu.org |
Subject: |
[Bug ld/20241] plugin lto + archive: invalid read access might cause SIGSEGV |
Date: |
Tue, 14 Jun 2016 05:24:08 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=20241
--- Comment #6 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot
gnu.org> ---
The master branch has been updated by Alan Modra <address@hidden>:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=b0cffb47671ffbaac559c1f17a9f248256ea6c42
commit b0cffb47671ffbaac559c1f17a9f248256ea6c42
Author: Alan Modra <address@hidden>
Date: Tue Jun 14 13:12:00 2016 +0930
Set my_archive for thin archives
LTO plugin support in plugin_maybe_claim wants to close the IR bfd
after replacing it with the recompiled object, but can't do so for
archive elements due to various pointers that access the archive bfd.
Thin archives have the same problem. They too cannot have their
element bfds closed.
PR ld/20241
bfd/
* archive.c (open_nested_file): Set my_archive.
* bfd.c (_bfd_default_error_handler <%B>): Exclude archive file name
for thin archives.
* bfdio.c (bfd_tell): Don't adjust origin for thin archives.
(bfd_seek): Likewise.
* bfdwin.c (bfd_get_file_window): Likewise.
* cache.c (cache_bmmap): Likewise.
(bfd_cache_lookup_worker): Don't look in my_archive for thin archives.
* mach-o.c (bfd_mach_o_follow_dsym): Don't open my_archive for
thin archives.
* plugin.c (try_claim): Likewise.
* xcofflink.c (xcoff_link_add_dynamic_symbols): Use import path of
file within thin archive, not the archive.
binutils/
* bucomm.c (bfd_get_archive_filename): Return file name within thin
archive.
ld/
* ldmain.c (add_archive_element): Just print file name of file within
thin archives.
* ldmisc.c (vfinfo): Likewise.
* plugin.c (plugin_object_p): Open file within thin archives.
(plugin_maybe_claim): Expand comment.
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- [Bug ld/20241] New: plugin lto + archive: invalid read access might cause SIGSEGV, frederic.germain at gmail dot com, 2016/06/11
- [Bug ld/20241] plugin lto + archive: invalid read access might cause SIGSEGV, amodra at gmail dot com, 2016/06/11
- [Bug ld/20241] plugin lto + archive: invalid read access might cause SIGSEGV, frederic.germain at gmail dot com, 2016/06/11
- [Bug ld/20241] plugin lto + archive: invalid read access might cause SIGSEGV, hjl.tools at gmail dot com, 2016/06/11
- [Bug ld/20241] plugin lto + archive: invalid read access might cause SIGSEGV, amodra at gmail dot com, 2016/06/11
- [Bug ld/20241] plugin lto + archive: invalid read access might cause SIGSEGV, frederic.germain at gmail dot com, 2016/06/12
- [Bug ld/20241] plugin lto + archive: invalid read access might cause SIGSEGV,
cvs-commit at gcc dot gnu.org <=
- [Bug ld/20241] plugin lto + archive: invalid read access might cause SIGSEGV, amodra at gmail dot com, 2016/06/14