mirror/glibc - mirror of git://sourceware.org/git/glibc.git

	Commit message (Collapse)	Author	Age	Files	Lines
*	elf: Fix pldd (BZ#18035)	Adhemerval Zanella	2019-04-23	1	-74/+40
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	Since 9182aa67994 (Fix vDSO l_name for GDB's, BZ#387) the initial link_map for executable itself and loader will have both l_name and l_libname->name holding the same value due: elf/dl-object.c 95 new->l_name = realname ? realname : (char ) newname->name + libname_len - 1; Since newname->name points to new->l_libname->name. This leads to pldd to an infinite call at: elf/pldd-xx.c 203 again: 204 while (1) 205 { 206 ssize_t n = pread64 (memfd, tmpbuf.data, tmpbuf.length, name_offset); 228 /* Try the l_libname element. / 229 struct E(libname_list) ln; 230 if (pread64 (memfd, &ln, sizeof (ln), m.l_libname) == sizeof (ln)) 231 { 232 name_offset = ln.name; 233 goto again; 234 } Since the value at ln.name (l_libname->name) will be the same as previously read. The straightforward fix is just avoid the check and read the new list entry. I checked also against binaries issues with old loaders with fix for BZ#387, and pldd could dump the shared objects. Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu, and powerpc64le-linux-gnu. [BZ #18035] elf/Makefile (tests-container): Add tst-pldd. * elf/pldd-xx.c: Use _Static_assert in of pldd_assert. (E(find_maps)): Avoid use alloca, use default read file operations instead of explicit LFS names, and fix infinite loop. * elf/pldd.c: Explicit set _FILE_OFFSET_BITS, cleanup headers. (get_process_info): Use _Static_assert instead of assert, use default directory operations instead of explicit LFS names, and free some leadek pointers. * elf/tst-pldd.c: New file.
*	Update copyright dates with scripts/update-copyrights.	Joseph Myers	2019-01-01	1	-1/+1
\| \| \| \| \| \| \|	* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
*	Update copyright dates with scripts/update-copyrights.	Joseph Myers	2018-01-01	1	-1/+1
\| \| \| \| \| \| \|	* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
*	Update copyright dates with scripts/update-copyrights.	Joseph Myers	2017-01-01	1	-1/+1
\|
*	Update copyright dates with scripts/update-copyrights.	Joseph Myers	2016-01-04	1	-1/+1
\|
*	pldd: Use struct scratch_buffer instead of extend_alloca	Florian Weimer	2015-04-08	1	-11/+21
\|
*	Update copyright dates with scripts/update-copyrights.	Joseph Myers	2015-01-02	1	-1/+1
\|
*	Update copyright notices with scripts/update-copyrights	Allan McRae	2014-01-01	1	-1/+1
\|
*	Update copyright notices with scripts/update-copyrights.	Joseph Myers	2013-01-02	1	-1/+1
\|
*	Prevent warning in pldd.	Marek Polacek	2012-04-16	1	-9/+9
\|
*	Replace FSF snail mail address with URLs.	Paul Eggert	2012-02-09	1	-3/+2
\|
*	Remove leftover debug message from pldd	Ulrich Drepper	2011-10-14	1	-1/+0
\|
*	Remove unused parameter in pldd and simplify ELF handling	Ulrich Drepper	2011-09-05	1	-1/+1
\|
*	Fix some problem of 32-bit pldd on 64-bit platforms	Ulrich Drepper	2011-08-17	1	-0/+5
\|
*	Add pldd program	Ulrich Drepper	2011-06-09	1	-0/+238