https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101246
Bug ID: 101246
Summary: gccgo cross-compiler targeting arm fails to build with
gcc 11. Missing structs in runtime.inc. Using
uclibc-ng
Product: gcc
Version: 11.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: go
Assignee: ian at airs dot com
Reporter: lancethepants at gmail dot com
CC: cmang at google dot com
Target Milestone: ---
I've recently run into an issue building a go cross-compiler on x86_64
targeting an arm embedded device (Netgear R7000 router) starting with gcc 11.
I was previously able to build the cross-compiler (c,c++,go) under gcc 9 & 10,
but am getting the errors listed at the bottom.
armv7 cortexa9 cpu (no fpu)
uclibc-ng (latest)
kernel 2.6.36.4.
I don't think the old kernel is an issue because the same errors arise if I use
kernel 5.12.
I tried building with glibc, and it does work then. So I think the issue is
with uclibc-ng.
So I did use uclibc-ng with gcc 9 & 10 with success, but for some reason with
gcc 11 I am now running into this issue.
My untrained eyes think it may be as easy as a couple missing structs within
runtime.inc. Is runtime.inc generated? because it doesn't appear in
unconfigured source I've notices.
thanks,
Lance
Build Errors
In file included from ../../../libgo/runtime/runtime.h:105,
from ../../../libgo/runtime/go-main.c:17:
./runtime.inc:1357:29: error: field ‘__state’ has incomplete type
1357 | struct ___mbstate_t __state;
| ^~~~~~~
./runtime.inc:1360:33: error: field ‘__lock’ has incomplete type
1360 | struct _pthread_mutex_t __lock;
|
