https://sourceware.org/bugzilla/show_bug.cgi?id=17498
Bug ID: 17498
Summary: gold includes far more symbols in symtab than bfd ld
Product: binutils
Version: 2.26 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: gold
Assignee: ccoutant at google dot com
Reporter: rafael.espindola at gmail dot com
CC: ian at airs dot com
Linking clang with gold produces a binary with 185552 symbols in .symtab. With
gnu ld, only 60018.
The result is that when using --strip-all both linkers produce binaries of
comparable sizes, but without it the one produced by gold is 4.3 MB bigger.
The entire difference seems to come from bfd hiding .L symbols:
$ cat test.cpp
void g(const char* x);
void f() {
g("aoeuaoeuaoeuao");
}
$ gcc -shared -fPIC test.cpp -o test.so -fuse-ld=bfd -O2 && nm test.so | grep
' r '
0000000000000728 r __FRAME_END__
$ gcc -shared -fPIC test.cpp -o test.so -fuse-ld=gold -O2 && nm test.so | grep
' r '
0000000000000760 r __FRAME_END__
00000000000006f5 r .LC0
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