Red Hat Bugzilla – Bug 915411
libWebCoreInternals.a: could not read symbols: No more archived files
Last modified: 2015-02-18 08:50:44 EST
Build of webkitgtk3-1.11.90-2.fc19 on s390x fails with
./.libs/libWebCoreInternals.a: could not read symbols: No more archived files
collect2: error: ld returned 1 exit status
make: *** [Programs/DumpRenderTree] Error 1
The last successful build of webkit (1.11.2-3.fc19) used binutils.s390x 0:220.127.116.11.6-1.fc19, will retry with these
Version-Release number of selected component (if applicable):
libWebCoreInternals.a library is surprisingly small, cca 70 KB, couldn't an 4GB overflow happen? Couldn't bug 835957 re-appear in some other form?
Please could you upload a copy of libWebCoreInternals.a for me ?
Created attachment 702484 [details]
Ah - this is a "thin" archive. Ie it does not contain the object files themselves. Instead it just contains the pathnames of the object files (relative to the archive) and a symbol table of their exported symbols.
So, no, this is not a recurrence of 835957.
The archive does appear to be corrupt however. Runnning "readelf -c" on it shows:
Index of archive libWebCoreInternals.a:
(0 entries, 0x123bc bytes in the symbol table)
readelf: Error: libWebCoreInternals.a:
symbols remain in the index symbol table, but
without corresponding entries in the index table
This *might* be an occurrence of PR 15140:
How is libWebCoreInternals.a built ? Is it just one ar command line, or is it built up with multiple invocations of ar ? If the latter, then the problem might be that sometimes the "t" ar option is being used and sometimes it is not. (This
was the problem underlying PR 15140).
Stop press - I was using an old version of readelf. The latest version tells me:
./readelf -c libWebCoreInternals.a
Index of archive libWebCoreInternals.a: (870 entries, 0x10888 bytes in the symbol table)
readelf: Error: libWebCoreInternals.a: failed to read archive header
And this carries on for a while. So the symbol table appears to be intact.
I suspect, given the linker error message, that the problem might be that one of the object files referenced by libWebCoreInternals.a has been deleted or moved, so that it can no longer be found. Is this a possible scenario ? If you run "readelf -h libWebCoreInernals.a" for example, do you get to see the headers of all of the archive members or does readelf complain about some missing files ?
I don't see any error when doing "readelf -h libWebCoreInternals.a". I can give you access to the whole chroot with the build so you can easily inspect the files yourself. Just ping me (dhorak) on #tools IRC if you are interested.
I have moved the chroot to /var/lib/mock/fedora-19-s390x.webkit/root so it doesn't clash with mock chroots I or other devels will create on the machine. Is there anything I can help you with? It's important for me to get webkit built as it blocks 1000s of other packages in the F-19 mass rebuild on s390.
Right - so the situation is this: Thin archives are broken on targets which also use 64-bit archives. (Ie s390, MIPS, IA64). The workaround is to just use ordinary archives not thin one.
The bug itself is in the ar program when it creates the index table for the archive. For 64-bit archives it always assumes that a "fat" archive is being created and so all but the first index are off by huge amounts. I have an experimental patch to fix this problem which will be in binutils-18.104.22.168.1-2.fc19, once it has been built.
This bug appears to have been reported against 'rawhide' during the Fedora 19 development cycle.
Changing version to '19'.
(As we did not run this process for some time, it could affect also pre-Fedora 19 development
cycle bugs. We are very sorry. It will help us with cleanup during Fedora 19 End Of Life. Thank you.)
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