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[01/15] aarch64: free tlsdesc data on dlclose [BZ #27403]

Message ID 90458da8b7b46e806f756c2715c87fc9d2c1be95.1613390045.git.szabolcs.nagy@arm.com
State New
Headers show
Series Dynamic TLS related data race fixes | expand

Commit Message

Szabolcs Nagy Feb. 15, 2021, 11:56 a.m. UTC
DL_UNMAP_IS_SPECIAL and DL_UNMAP were not defined. The definitions are
now copied from arm, since the same is needed on aarch64. The cleanup
of tlsdesc data is handled by the custom _dl_unmap.

Fixes bug 27403.
---
 sysdeps/aarch64/dl-lookupcfg.h | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 sysdeps/aarch64/dl-lookupcfg.h
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Patch

diff --git a/sysdeps/aarch64/dl-lookupcfg.h b/sysdeps/aarch64/dl-lookupcfg.h
new file mode 100644
index 0000000000..c1ae676ae1
--- /dev/null
+++ b/sysdeps/aarch64/dl-lookupcfg.h
@@ -0,0 +1,27 @@ 
+/* Configuration of lookup functions.
+   Copyright (C) 2006-2021 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/>.  */
+
+#define DL_UNMAP_IS_SPECIAL
+
+#include_next <dl-lookupcfg.h>
+
+struct link_map;
+
+extern void _dl_unmap (struct link_map *map);
+
+#define DL_UNMAP(map) _dl_unmap (map)