https://sourceware.org/bugzilla/show_bug.cgi?id=18703
Bug ID: 18703
Summary: Symbol version and Version script incompatibility with
BFD ld
Product: binutils
Version: 2.26 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: gold
Assignee: ccoutant at gmail dot com
Reporter: tmsriram at google dot com
CC: ian at airs dot com, iant at google dot com, ppluzhnikov at
google dot com,
saugustine at google dot com
Target Milestone: ---
Here is a simple example to reproduce the problem:
foo.cc
======
extern "C"
int foo() {
return 0;
}
__asm__ (".symver foo, foo@VERS_1.1");
foo.map
=======
VERS_1.1 {
global:
foo;
};
Now, use BFD linker:
$ g++ -B<path to bfd linker> foo.cc -fPIC -shared
-Wl,--version-script=./foo.map -o libfoo.so
$ nm libfoo.so | grep foo
0000000000000700 T foo@VERS_1.1
The symbol is versioned.
Now, use gold linker and repeat:
$ g++ -B<path to gold linker> foo.cc -fPIC -shared
-Wl,--version-script=./foo.map -o libfoo.so
$ nm libfoo.so | grep foo
0000000000000740 T foo
The symbol is not versioned.
This affects building libgcc_s.so in trunk GCC with gold as symbol
__cpu_indicator_init is versioned in the exact manner as described.
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