https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96385
Bug ID: 96385
Summary: GCC generates separate debug info with undefined
symbols without relocations
Product: gcc
Version: 10.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
CC: marxin at gcc dot gnu.org
Target Milestone: ---
Created attachment 48956
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48956&action=edit
LTO debug output
GCC may generate separate debug info files which contain undefined symbols
without relocations. Here is the lto output from binutils LTO build:
[hjl@gnu-cfl-2 binutils-cross-run]$ readelf -rsW /tmp/gcc.lto.debug.o | grep
lreal
96: 0000000000000000 0 NOTYPE GLOBAL DEFAULT UND lrealpath
[hjl@gnu-cfl-2 binutils-cross-run]$
It triggered a linker bug:
https://sourceware.org/bugzilla/show_bug.cgi?id=26314
