https://sourceware.org/bugzilla/show_bug.cgi?id=22319
Bug ID: 22319
Summary: ld -u not working in new versions of binutils
Product: binutils
Version: 2.29
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: xavier.orogay at arm dot com
Target Milestone: ---
Hello,
we found a bug in 2.27 and 2.29.
>From 'man ld'
-u symbol
Force symbol to be entered in the output file as an undefined symbol
However, this flag stopped working on 2.27 onwards.
Reproducer:
With a "hello world" program
$ gcc -c hello.c -o hello.o
$ ld -lc -u undefined_symbol -o hello.exe hello.o
$ nm hello.exe
'nm hello.exe' should contain "U undefined_symbol" line
WE found this issue on CentOS Linux release 7.4.1708 (AltArch), that uses
binutils 2.27-9. Then I tested binutils 2.29 on Ubuntu 16.04 (x86_64) with the
same result.
Best regards,
Xavier
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