forked from rpms/glibc
0aab7eb585
Upstream commit: ffb17e7ba3a5ba9632cee97330b325072fbe41dd - rtld: Avoid using up static TLS surplus for optimizations [BZ #25051] - rtld: Account static TLS surplus for audit modules - rtld: Add rtld.nns tunable for the number of supported namespaces - Remove --enable-obsolete-nsl configure flag - Move non-deprecated RPC-related functions from sunrpc to inet - aarch64: add NEWS entry about branch protection support - aarch64: redefine RETURN_ADDRESS to strip PAC - aarch64: fix pac-ret support in _mcount - aarch64: Add pac-ret support to assembly files - aarch64: configure check for pac-ret code generation - aarch64: ensure objects are BTI compatible - aarch64: enable BTI at runtime - aarch64: fix RTLD_START for BTI - aarch64: fix swapcontext for BTI - aarch64: Add BTI support to assembly files - aarch64: Rename place holder .S files to .c - aarch64: configure test for BTI support - Rewrite abi-note.S in C. - rtld: Clean up PT_NOTE and add PT_GNU_PROPERTY handling - string: Move tst-strsignal tst-strerror to tests-container - string: Fix prototype mismatch in sigabbrev_np, __sigdescr_np - arm: CVE-2020-6096: Fix multiarch memcpy for negative length (#1820332) - arm: CVE-2020-6096: fix memcpy and memmove for negative length (#1820332) - sunrpc: Remove hidden aliases for global data symbols (bug 26210) - hurd: Fix strerror not setting errno - tst-strsignal: fix checking for RT signals support - hurd: Evaluate fd before entering the critical section - CVE-2016-10228: Rewrite iconv option parsing (#1428292) - nss: Remove cryptographic key support from nss_files, nss_nis, nss_nisplus - sunrpc: Do not export getrpcport by default - sunrpc: Do not export key handling hooks by default - sunrpc: Turn clnt_sperrno into a libc_hidden_nolink_sunrpc symbol - string: Add strerrorname_np and strerrordesc_np - string: Add sigabbrev_np and sigdescr_np - string: Add strerror_l on test-strerror-errno - string: Add strerror, strerror_r, and strerror_l test - string: Add strsignal test - string: Simplify strerror_r - string: Use tls-internal on strerror_l - string: Implement strerror in terms of strerror_l - string: Remove old TLS usage on strsignal - linux: Fix __NSIG_WORDS and add __NSIG_BYTES - signal: Move sys_errlist to a compat symbol - signal: Move sys_siglist to a compat symbol - signal: Add signum-{generic,arch}.h - Remove most vfprintf width/precision-dependent allocations (bug 14231, bug 26211). - elf: Do not signal LA_ACT_CONSISTENT for an empty namespace [BZ #26076] - Fix stringop-overflow errors from gcc 10 in iconv. - x86: Add thresholds for "rep movsb/stosb" to tunables - Use C2x return value from getpayload of non-NaN (bug 26073). - x86: Detect Extended Feature Disable (XFD) - x86: Correct bit_cpu_CLFSH [BZ #26208] - manual: Document __libc_single_threaded - Add the __libc_single_threaded variable - Linux: rseq registration tests - Linux: Use rseq in sched_getcpu if available - Linux: Perform rseq registration at C startup and thread creation - tst-cancel4: deal with ENOSYS errors - manual: Show copyright information not just in the printed manual
92 lines
2.9 KiB
Diff
92 lines
2.9 KiB
Diff
Short description: Cleanup use of _dl_starting_up.
|
|
Author(s): Fedora glibc team <glibc@lists.fedoraproject.org>
|
|
Origin: PATCH
|
|
Upstream status: https://sourceware.org/ml/libc-alpha/2014-02/msg00589.html
|
|
|
|
Upstream discussions:
|
|
https://sourceware.org/ml/libc-alpha/2014-02/msg00580.html
|
|
|
|
Based on the following commit:
|
|
~~~
|
|
From 16552c01a66633c9e412984d9d92616bd4e5303c Mon Sep 17 00:00:00 2001
|
|
From: Andreas Schwab <schwab@redhat.com>
|
|
Date: Fri, 11 Jun 2010 11:04:11 +0200
|
|
Subject: [PATCH] Properly set __libc_multiple_libcs
|
|
|
|
* elf/rtld.c (_dl_starting_up): Always define.
|
|
(dl_main): Always set _dl_starting_up.
|
|
* elf/dl-support.c (_dl_starting_up): Always define.
|
|
* elf/dl-init.c (_dl_init): Always clear _dl_starting_up.
|
|
|
|
---
|
|
ChangeLog | 7 +++++++
|
|
elf/dl-init.c | 4 ----
|
|
elf/dl-support.c | 2 --
|
|
elf/rtld.c | 4 ----
|
|
4 files changed, 7 insertions(+), 10 deletions(-)
|
|
~~~
|
|
|
|
This patch needs to go upstream to get cleaned up, but has always involed
|
|
analysis of the GNU/Hurd parts of the change and that stalled out, but
|
|
perhaps with build-many-glibcs we can now test these changes more easily.
|
|
|
|
diff --git a/elf/dl-init.c b/elf/dl-init.c
|
|
index 518824e8a5826314..66c395474a57c1fd 100644
|
|
--- a/elf/dl-init.c
|
|
+++ b/elf/dl-init.c
|
|
@@ -120,8 +120,6 @@ _dl_init (struct link_map *main_map, int argc, char **argv, char **env)
|
|
while (i-- > 0)
|
|
call_init (main_map->l_initfini[i], argc, argv, env);
|
|
|
|
-#ifndef HAVE_INLINED_SYSCALLS
|
|
/* Finished starting up. */
|
|
_dl_starting_up = 0;
|
|
-#endif
|
|
}
|
|
diff --git a/elf/dl-support.c b/elf/dl-support.c
|
|
index 7704c101c5a543a1..ffa235c78df8481f 100644
|
|
--- a/elf/dl-support.c
|
|
+++ b/elf/dl-support.c
|
|
@@ -120,10 +120,8 @@ struct r_scope_elem _dl_initial_searchlist =
|
|
.r_nlist = 1,
|
|
};
|
|
|
|
-#ifndef HAVE_INLINED_SYSCALLS
|
|
/* Nonzero during startup. */
|
|
int _dl_starting_up = 1;
|
|
-#endif
|
|
|
|
/* Random data provided by the kernel. */
|
|
void *_dl_random;
|
|
diff --git a/elf/rtld.c b/elf/rtld.c
|
|
index 5b882163fae5ea8a..f93adf017c9d2110 100644
|
|
--- a/elf/rtld.c
|
|
+++ b/elf/rtld.c
|
|
@@ -316,7 +316,6 @@ audit_list_count (struct audit_list *list)
|
|
return naudit;
|
|
}
|
|
|
|
-#ifndef HAVE_INLINED_SYSCALLS
|
|
/* Set nonzero during loading and initialization of executable and
|
|
libraries, cleared before the executable's entry point runs. This
|
|
must not be initialized to nonzero, because the unused dynamic
|
|
@@ -326,7 +325,6 @@ audit_list_count (struct audit_list *list)
|
|
never be called. */
|
|
int _dl_starting_up = 0;
|
|
rtld_hidden_def (_dl_starting_up)
|
|
-#endif
|
|
|
|
/* This is the structure which defines all variables global to ld.so
|
|
(except those which cannot be added for some reason). */
|
|
@@ -1178,10 +1176,8 @@ dl_main (const ElfW(Phdr) *phdr,
|
|
/* Process the environment variable which control the behaviour. */
|
|
process_envvars (&mode, &audit_list);
|
|
|
|
-#ifndef HAVE_INLINED_SYSCALLS
|
|
/* Set up a flag which tells we are just starting. */
|
|
_dl_starting_up = 1;
|
|
-#endif
|
|
|
|
if (*user_entry == (ElfW(Addr)) ENTRY_POINT)
|
|
{
|