[Bug binutils/25355] nm reports a variable as "T" with -flto and -fno-common

[amodra at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=25355

Alan Modra <amodra at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |amodra at gmail dot com

--- Comment #8 from Alan Modra <amodra at gmail dot com> ---
To reinforce Nick's comment #1 about the plugin api, this is what we get in
bfd/plugin.c:bfd_plugin_canonicalize_symtab for gcc -fno-common compiling
char nm_test_var;
int nm_test_func (void) { return 0; }

(gdb) p syms[0]
$1 = {name = 0xb33800 "nm_test_func", version = 0x0, def = 0, visibility = 0,
size = 0, comdat_key = 0x0, resolution = 0}
(gdb) p syms[1]
$2 = {name = 0xb33820 "nm_test_var", version = 0x0, def = 0, visibility = 0,
size = 0, comdat_key = 0x0, resolution = 0}

There isn't anything to distinguish variables from functions, and so nothing
can be done in nm.

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