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From: "sam at gentoo dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug plugins/108634] New: [13 regression] 'undefined symbol:
 tree_code_type' when building kernel GCC plugins since
 r13-5431-gb0241ce6e37031
Date: Wed, 01 Feb 2023 22:37:21 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108634

            Bug ID: 108634
           Summary: [13 regression] 'undefined symbol: tree_code_type'
                    when building kernel GCC plugins since
                    r13-5431-gb0241ce6e37031
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: plugins
          Assignee: unassigned at gcc dot gnu.org
          Reporter: sam at gentoo dot org
                CC: jakub at gcc dot gnu.org
  Target Milestone: ---

When building kernel 6.1.9:
```
cc1: error: cannot load plugin
./scripts/gcc-plugins/randomize_layout_plugin.so:
./scripts/gcc-plugins/randomize_layout_plugin.so: undefined symbol:
tree_code_type
make[2]: ***
[/var/tmp/portage/sys-kernel/gentoo-kernel-6.1.9/work/linux-6.1/scripts/Mak=
efile.build:118:
scripts/mod/devicetable-offsets.s] Error 1
make[2]: *** Waiting for unfinished jobs....
make[2]: ***
[/var/tmp/portage/sys-kernel/gentoo-kernel-6.1.9/work/linux-6.1/scripts/Mak=
efile.build:250:
scripts/mod/empty.o] Error 1
make[1]: ***
[/var/tmp/portage/sys-kernel/gentoo-kernel-6.1.9/work/linux-6.1/Makefile:12=
81:
prepare0] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:231: __sub-make] Error 2
```

This happens since r13-5431-gb0241ce6e37031 which changes the visibility
(thanks to Arsen and pinskia for spotting this) of some of the symbols.

It's unclear to me if this is a kernel or GCC issue though (should the kern=
el
be using different methods in its plugin?)=