https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98170
Bug ID: 98170
Summary: Cannot build libgo on AIX: *.gox does not contain any
Go export data
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: go
Assignee: ian at airs dot com
Reporter: ro at gcc dot gnu.org
CC: clement.chigot at atos dot net, cmang at google dot com
Target Milestone: ---
Host: powerpc-ibm-aix7.2.4.0
Target: powerpc-ibm-aix7.2.4.0
Build: powerpc-ibm-aix7.2.4.0
I've recently tried to build master on AIX 7.2 with --enable-languages=all.
Among
others, this failed building libgo, all following the same pattern:
/home/ro/gcc/src/gcc-master/libgo/go/runtime/internal/math/math.go:7:28: error:
./runtime/internal/sys.gox exists but does not contain any Go export data
7 | import "runtime/internal/sys"
| ^
All those *.gox files were just 48 bytes long, even with binutils 2.35.1
objcopy.
It turns out this is a known issue, explained in
https://www.gitmemory.com/issue/golang/go/38043/603687042.
There are several issues here:
* The version of copycsect referenced there (based on binutils 2.25.1) doesn't
compile with current binutils 2.35.1 any longer (bfd_get_section_size has
lost
its bfd * arg since).
* Once this is fixed, the build mostly works (with the exception of the
recently
reported stab issue
https://gcc.gnu.org/pipermail/gcc-patches/2020-December/560857.html)
* Unless this functionality can be integrated into binutils, requiring a full
binutils just for this seems pretty heavy-handed. I suspect that can way
easier be done using libiberty's simple-object interfaces.
* Whatever the case, until libgo builds out of the box on AIX, the issue should
at the very least be documented (install.texi?) and/or the libgo build
disabled
so others don't waste time investigating known issues.
