https://sourceware.org/bugzilla/show_bug.cgi?id=31615
Sam James changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://sourceware.org/bugzilla/show_bug.cgi?id=31615
--- Comment #16 from Sourceware Commits ---
The master branch has been updated by H.J. Lu :
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=d05e1a4a6d438c11af5a2b9b0ac88a74727b5f0f
commit d05e1a4a6d438c11af5a2b9b0ac88a74727b5f0f
A
https://sourceware.org/bugzilla/show_bug.cgi?id=31615
--- Comment #15 from Sourceware Commits ---
The binutils-2_42-branch branch has been updated by Alan Modra
:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=6224493e457e72b11818c87cdc112bdb0fee5f81
commit 6224493e457e72b11818c87cd
https://sourceware.org/bugzilla/show_bug.cgi?id=31615
--- Comment #14 from Sourceware Commits ---
The master branch has been updated by Alan Modra :
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=248b6326a49ed49e2f627d3bddbac514a074bac0
commit 248b6326a49ed49e2f627d3bddbac514a074bac
https://sourceware.org/bugzilla/show_bug.cgi?id=31615
--- Comment #13 from H.J. Lu ---
Created attachment 15452
--> https://sourceware.org/bugzilla/attachment.cgi?id=15452&action=edit
A testcase
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--- Comment #12 from H.J. Lu ---
(In reply to H.J. Lu from comment #10)
> Before my commit, ldexp@@GLIBC_2.2.5 in libc.so.6 is used even when it is
> also defined in libm.so.6. After my commit, ldexp@@GLIBC_2.2.5 in libm.so.6
> is used. Howe
https://sourceware.org/bugzilla/show_bug.cgi?id=31615
--- Comment #11 from H.J. Lu ---
(In reply to Sam James from comment #9)
> H.J, try with `gcc -O3 -flto -c foo.c ; gcc -o foo -Wl,--as-needed foo.o
> -lm`. I needed that to repro.
Yes, it works.
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--- Comment #10 from H.J. Lu ---
(In reply to Alan Modra from comment #7)
> This results in no reload of libm.so.6. If libm.so.6 is reloaded (post
> e7e05a9dd0) ldexp is already an indirect symbol to a defweak versioned sym
> from libc.so.6,
https://sourceware.org/bugzilla/show_bug.cgi?id=31615
--- Comment #9 from Sam James ---
H.J, try with `gcc -O3 -flto -c foo.c ; gcc -o foo -Wl,--as-needed foo.o -lm`.
I needed that to repro.
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--- Comment #8 from H.J. Lu ---
(In reply to Alan Modra from comment #7)
> /* gcc -O3 -flto -c xxx.c; gcc -o xxx xxx.o -lm */
> #include
> #include
> #include
>
> int
> main (int argc, char **argv)
> {
> double x = 1.0;
> long y = 0;
>
https://sourceware.org/bugzilla/show_bug.cgi?id=31615
--- Comment #7 from Alan Modra ---
/* gcc -O3 -flto -c xxx.c; gcc -o xxx xxx.o -lm */
#include
#include
#include
int
main (int argc, char **argv)
{
double x = 1.0;
long y = 0;
if (--argc > 0)
x = strtod (*++argv, NULL);
if (--a
https://sourceware.org/bugzilla/show_bug.cgi?id=31615
--- Comment #6 from Alan Modra ---
(In reply to H.J. Lu from comment #4)
> It is caused by
>
> commit e7e05a9dd0c93038fdd5ed1904ca660e52beabdc
Not possible. The real cause must be something else. At most, this patch
exposed another bug that
https://sourceware.org/bugzilla/show_bug.cgi?id=31615
--- Comment #5 from H.J. Lu ---
#0 0x0043c171 in _bfd_generic_link_add_one_symbol (
info=0x61ef80 , abfd=0x7f7d80, name=0xeb69a8 "ldexp",
flags=, section=0x61e008 <_bfd_std_section+840>, value=0,
string=0xeb6990 "ldexp@@
https://sourceware.org/bugzilla/show_bug.cgi?id=31615
H.J. Lu changed:
What|Removed |Added
CC||amodra at gmail dot com
Target Milestone|
https://sourceware.org/bugzilla/show_bug.cgi?id=31615
--- Comment #3 from Sam James ---
Given LTO is involved, you may need matching GCC version: gcc version 14.0.1
20240405 (experimental) 4b02dd48f531ea88587edd2b75b6e5243b4389e8 (Gentoo
Hardened 14.0. p, commit 7bbfb01a32b73842f8908de0287035
https://sourceware.org/bugzilla/show_bug.cgi?id=31615
--- Comment #2 from Sam James ---
My guess is the recent LTO rescan fixes but I did not bisect yet.
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--- Comment #1 from Sam James ---
Tarball of objects:
https://dev.gentoo.org/~sam/bugs/sourceware/31615/binutils-PR31615.tar.xz.
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