glibc/SOURCES/glibc-rh2047981-9.patch

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2022-11-08 06:58:46 +00:00
commit 3908fa933a4354309225af616d9242f595e11ccf
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Wed Jun 30 00:21:18 2021 -0300
elf: Fix audit regression
Commit 03e187a41d9 added a regression when an audit module does not have
libc as DT_NEEDED (although unusual it is possible).
Checked on x86_64-linux-gnu.
Conflicts:
elf/Makefile
diff --git a/elf/Makefile b/elf/Makefile
index 30417c3ce15abcb4..6262a4a65cfd2148 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -218,6 +218,7 @@ tests += restest1 preloadtest loadfail multiload origtest resolvfail \
tst-rtld-run-static \
tst-dlmopen-dlerror \
tst-dlmopen-gethostbyname \
+ tst-audit17 \
# reldep9
tests-internal += loadtest unload unload2 circleload1 \
neededtest neededtest2 neededtest3 neededtest4 \
@@ -1527,6 +1528,16 @@ $(objpfx)tst-auditlogmod-3.so: $(libsupport)
$(objpfx)tst-audit16.out: \
$(objpfx)tst-auditlogmod-1.so $(objpfx)tst-auditlogmod-2.so \
$(objpfx)tst-auditlogmod-3.so
+$(objpfx)tst-audit17.out: $(objpfx)tst-auditmod17.so
+# The test check if a audit library without libc.so on DT_NEEDED works as
+# intended, so it uses an explicit link rule.
+$(objpfx)tst-auditmod17.so: $(objpfx)tst-auditmod17.os
+ $(CC) -nostdlib -nostartfiles -shared -o $@.new \
+ $(filter-out $(map-file),$^)
+ $(call after-link,$@.new)
+ mv -f $@.new $@
+CFLAGS-.os += $(call elide-stack-protector,.os,tst-auditmod17)
+tst-audit17-ENV = LD_AUDIT=$(objpfx)tst-auditmod17.so
# tst-sonamemove links against an older implementation of the library.
LDFLAGS-tst-sonamemove-linkmod1.so = \
diff --git a/elf/dl-open.c b/elf/dl-open.c
index 736df62ce6e46d34..661a2172d1789b26 100644
--- a/elf/dl-open.c
+++ b/elf/dl-open.c
@@ -759,16 +759,9 @@ dl_open_worker_begin (void *a)
namespace. */
if (!args->libc_already_loaded)
{
+ /* dlopen cannot be used to load an initial libc by design. */
struct link_map *libc_map = GL(dl_ns)[args->nsid].libc_map;
-#ifdef SHARED
- bool initial = libc_map->l_ns == LM_ID_BASE;
-#else
- /* In the static case, there is only one namespace, but it
- contains a secondary libc (the primary libc is statically
- linked). */
- bool initial = false;
-#endif
- _dl_call_libc_early_init (libc_map, initial);
+ _dl_call_libc_early_init (libc_map, false);
}
#ifndef SHARED
diff --git a/elf/tst-audit17.c b/elf/tst-audit17.c
new file mode 100644
index 0000000000000000..92986699d497845f
--- /dev/null
+++ b/elf/tst-audit17.c
@@ -0,0 +1,25 @@
+/* Check DT_AUDIT with audit not linked against libc.
+ Copyright (C) 2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+static int
+do_test (void)
+{
+ return 0;
+}
+
+#include <support/test-driver.c>
diff --git a/elf/tst-auditmod17.c b/elf/tst-auditmod17.c
new file mode 100644
index 0000000000000000..7a4467f597b56cf4
--- /dev/null
+++ b/elf/tst-auditmod17.c
@@ -0,0 +1,23 @@
+/* Check DT_AUDIT with audit not linked against libc.
+ Copyright (C) 2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+unsigned int
+la_version (unsigned int version)
+{
+ return version;
+}