summary refs log tree commit diff
path: root/sysdeps/x86_64
diff options
context:
space:
mode:
authorAdhemerval Zanella Netto <adhemerval.zanella@linaro.org>2022-09-21 10:51:08 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2022-10-05 18:04:13 -0300
commit9dc4e29f630c6ef8299120b275e503321dc0c8c7 (patch)
tree167fca82bd58716d247bea3d40c591fc651d44c6 /sysdeps/x86_64
parent6128e82ebe973163d2dd614d31753c88c0c4d645 (diff)
downloadglibc-9dc4e29f630c6ef8299120b275e503321dc0c8c7.tar.gz
glibc-9dc4e29f630c6ef8299120b275e503321dc0c8c7.tar.xz
glibc-9dc4e29f630c6ef8299120b275e503321dc0c8c7.zip
x86: Fix -Os build (BZ #29576)
The compiler might transform __stpcpy calls (which are routed to
__builtin_stpcpy as an optimization) to strcpy and x86_64 strcpy
multiarch implementation does not build any working symbol due
ISA_SHOULD_BUILD not being evaluated for IS_IN(rtld).

Checked on x86_64-linux-gnu.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps/x86_64')
-rw-r--r--sysdeps/x86_64/multiarch/rtld-strcpy.S18
1 files changed, 18 insertions, 0 deletions
diff --git a/sysdeps/x86_64/multiarch/rtld-strcpy.S b/sysdeps/x86_64/multiarch/rtld-strcpy.S
new file mode 100644
index 0000000000..19439c553d
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/rtld-strcpy.S
@@ -0,0 +1,18 @@
+/* Copyright (C) 2022 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/>.  */
+
+#include "../strcpy.S"