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import glibc-2.17-292.el7.src.rpm

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Signed-off-by: zhangbinchen <zhangbinchen@openanolis.org>
This commit is contained in:
zhangbinchen 2021-08-21 12:40:25 +08:00
commit ff0128648f
929 changed files with 436800 additions and 0 deletions
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glibc-rh911307-2.patch Normal file
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@ -0,0 +1,44 @@
From 7dfe8a35215a019f552f117d907eca294225c121 Mon Sep 17 00:00:00 2001
From: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Wed, 12 Jun 2013 10:21:22 -0500
Subject: [PATCH 35/42] Fix unsafe compiler optimization
GCC 4.8 enables -ftree-loop-distribute-patterns at -O3 by default and
this optimization may transform loops into memset/memmove calls. Without
proper handling this may generate unexpected PLT calls on GLIBC.
This patch fixes by create memset/memmove alias to internal GLIBC
__GI_memset/__GI_memmove symbols.
(cherry picked from commit 6a97b62a5b4f18aea849d6f4d8de58d1469d2521)
---
sysdeps/generic/symbol-hacks.h | 7 ++++++-
sysdeps/wordsize-32/symbol-hacks.h | 2 ++
3 files changed, 16 insertions(+), 1 deletion(-)
diff --git glibc-2.17-c758a686/sysdeps/generic/symbol-hacks.h glibc-2.17-c758a686/sysdeps/generic/symbol-hacks.h
index bc7b4c4..9eaf014 100644
--- glibc-2.17-c758a686/sysdeps/generic/symbol-hacks.h
+++ glibc-2.17-c758a686/sysdeps/generic/symbol-hacks.h
@@ -1 +1,6 @@
-/* Fortunately nothing to do. */
+/* Some compiler optimizations may transform loops into memset/memmove
+ calls and without proper declaration it may generate PLT calls. */
+#if !defined __ASSEMBLER__ && !defined NOT_IN_libc && defined SHARED
+asm ("memmove = __GI_memmove");
+asm ("memset = __GI_memset");
+#endif
diff --git glibc-2.17-c758a686/sysdeps/wordsize-32/symbol-hacks.h glibc-2.17-c758a686/sysdeps/wordsize-32/symbol-hacks.h
index 52a14fc..ad5b231 100644
--- glibc-2.17-c758a686/sysdeps/wordsize-32/symbol-hacks.h
+++ glibc-2.17-c758a686/sysdeps/wordsize-32/symbol-hacks.h
@@ -16,6 +16,8 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
+#include_next "symbol-hacks.h"
+
/* A very dirty trick: gcc emits references to __divdi3, __udivdi3,
__moddi3, and __umoddi3. These functions are exported and
therefore we get PLTs. Unnecessarily so. Changing gcc is a big
--
1.7.11.7