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[Bug gold/23607] gold linker --threads --thread-count,2 causes ld segmen
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From: |
rijard.barnes at gmail dot com |
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Subject: |
[Bug gold/23607] gold linker --threads --thread-count,2 causes ld segmentation fault |
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Date: |
Wed, 03 Jun 2020 22:08:23 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=23607
--- Comment #5 from Richard <rijard.barnes at gmail dot com> ---
I've made a repo with a Makefile that reproduces the bug here:
https://github.com/r-barnes/gold_segfault_reproducer
The program I'm trying to compile is a simple "Hello, World!".
The compilation string is:
clang main.c -flto -fuse-ld=gold -Wl,--threads -Wl,--thread-count,4 -v
--save-temps
I observe the segfault with both clang-8 and clang-10 using `GNU gold (GNU
Binutils for Ubuntu 2.34) 1.16` running on Lubuntu 20.04.
The segfault is intermittent: not every run will trigger the segfault.
Removing `-flto` seems to stop the segfault.
Using `-Wl,--thread-count,1` stops the segfault.
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