https://sourceware.org/bugzilla/show_bug.cgi?id=22983
Bug ID: 22983
Summary: --dynamic-list=export is ignored in presence of -flto
Product: binutils
Version: 2.31 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
Created attachment 10902
--> https://sourceware.org/bugzilla/attachment.cgi?id=10902&action=edit
A testcase
[hjl@gnu-cfl-1 pr84901]$ make
gcc -c -o func.o func.c
gcc -c -o main.o main.c
gcc -Wl,--dynamic-list=exports -o x func.o main.o
gcc -flto -c -o func-lto.o func.c
gcc -flto -c -o main-lto.o main.c
gcc -Wl,--dynamic-list=exports -o x-lto func-lto.o main-lto.o
readelf --dyn-syms x | grep attr_used
4: 0000000000404024 4 OBJECT GLOBAL DEFAULT 23
var_attr_used_enabled
5: 0000000000404028 4 OBJECT GLOBAL DEFAULT 23
var_attr_used_disabled
6: 0000000000401121 15 FUNC GLOBAL DEFAULT 13
func_attr_used_enabled
7: 0000000000401112 15 FUNC GLOBAL DEFAULT 13
func_attr_used_disabled
readelf --dyn-syms x-lto | grep attr_used
4: 0000000000404024 4 OBJECT GLOBAL DEFAULT 23
var_attr_used_enabled
5: 0000000000401121 15 FUNC GLOBAL DEFAULT 13
func_attr_used_enabled
[hjl@gnu-cfl-1 pr84901]$
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