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* [Bug dynamic-link/28129] New: Unnecessary check DT_DEBUG in ld.so
@ 2021-07-24 14:24 hjl.tools at gmail dot com
2021-10-06 16:44 ` [Bug dynamic-link/28129] " cvs-commit at gcc dot gnu.org
2021-10-06 16:44 ` hjl.tools at gmail dot com
0 siblings, 2 replies; 3+ messages in thread
From: hjl.tools at gmail dot com @ 2021-07-24 14:24 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28129
Bug ID: 28129
Summary: Unnecessary check DT_DEBUG in ld.so
Product: glibc
Version: 2.34
Status: NEW
Severity: normal
Priority: P2
Component: dynamic-link
Assignee: unassigned at sourceware dot org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
rtld.c has
/* Fill in the pointer in the dynamic linker's own dynamic section, in
case you run gdb on the dynamic linker directly. */
if (GL(dl_rtld_map).l_info[DT_DEBUG] != NULL)
GL(dl_rtld_map).l_info[DT_DEBUG]->d_un.d_ptr = (ElfW(Addr)) r;
But linker never generates DT_DEBUG in shared libraries. It should be removed
or linker should add a new option to generate DT_DEBUG in shared libraries.
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* [Bug dynamic-link/28129] Unnecessary check DT_DEBUG in ld.so
2021-07-24 14:24 [Bug dynamic-link/28129] New: Unnecessary check DT_DEBUG in ld.so hjl.tools at gmail dot com
@ 2021-10-06 16:44 ` cvs-commit at gcc dot gnu.org
2021-10-06 16:44 ` hjl.tools at gmail dot com
1 sibling, 0 replies; 3+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-10-06 16:44 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28129
--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=3234a31b489707f19ec6d4c9909af06f20ddb901
commit 3234a31b489707f19ec6d4c9909af06f20ddb901
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Mon Aug 2 13:52:36 2021 -0700
ld.so: Don't fill the DT_DEBUG entry in ld.so [BZ #28129]
Linker creates the DT_DEBUG entry only in executables. Don't fill the
non-existent DT_DEBUG entry in ld.so with the run-time address of the
r_debug structure. This fixes BZ #28129.
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* [Bug dynamic-link/28129] Unnecessary check DT_DEBUG in ld.so
2021-07-24 14:24 [Bug dynamic-link/28129] New: Unnecessary check DT_DEBUG in ld.so hjl.tools at gmail dot com
2021-10-06 16:44 ` [Bug dynamic-link/28129] " cvs-commit at gcc dot gnu.org
@ 2021-10-06 16:44 ` hjl.tools at gmail dot com
1 sibling, 0 replies; 3+ messages in thread
From: hjl.tools at gmail dot com @ 2021-10-06 16:44 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=28129
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |2.35
Resolution|--- |FIXED
Status|NEW |RESOLVED
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
Fixed for 2.35.
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2021-07-24 14:24 [Bug dynamic-link/28129] New: Unnecessary check DT_DEBUG in ld.so hjl.tools at gmail dot com
2021-10-06 16:44 ` [Bug dynamic-link/28129] " cvs-commit at gcc dot gnu.org
2021-10-06 16:44 ` hjl.tools at gmail dot com
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