Re: buildbot vs --enable-targets=all

[Alan Modra <amodra@gmail.com>]

On Tue, Jul 26, 2022 at 10:54:12AM +0930, Alan Modra wrote:
> On Mon, Jul 25, 2022 at 02:25:42PM +0200, Mark Wielaard wrote:
> > On debian-ppc64 and fedora-ppc64le there are the following ld failures:
> > https://builder.sourceware.org/buildbot/#builders/86/builds/343
> > https://builder.sourceware.org/buildbot/#builders/78/builds/382
> > 
> > extra lines in dump.out starting with "^    40: 0000002c     0
> > TLS     GLOBAL DEFAULT    9 ie0$"
> > EOF from /var/lib/buildbot/workers/wildebeest/binutils-debian-
> > ppc64/binutils-gdb/ld/testsuite/ld-powerpc/tlsexe32.r
> > FAIL: TLS32 dynamic exec
> 
> The line should match the last line of ld-powerpc/tlsexe32.r.  Three
> possibilities occur to me that might cause this:
> 1) There really is a duplicate globel ie0 symbol, or readelf is
>    duplicating an output line.
> 2) expect/dejagnu is duplicating output lines to dump.out, or reading
>    that file back when matching regexps duplicates the last line.
> 3) The last line of tlsexe32.r is dropped from the git checkout, or
>    when matching regexps.
> 
> None of these things happen elsewhere as far as I know.  ie. the build
> bot is broken.

Oh, you tricked me.  It's not just a single "extra line in.." but a
bunch of differences then finally that one.

So for some reason there is an empty .data section, putting all the
rest of the dump off by one.

regexp_diff match failure
regexp "^ +\[[ 0-9]+\] \.symtab +SYMTAB +.*$"
line   "  [13] .data             PROGBITS        01810398 000398 000000 00  WA  0   0  1"
regexp_diff match failure
regexp "^ +\[[ 0-9]+\] \.strtab +STRTAB +.*$"
line   "  [14] .symtab           SYMTAB          00000000 000398 000290 10     15  26  4"
regexp_diff match failure


-- 
Alan Modra
Australia Development Lab, IBM