Re: Freezing core-updates

[Andreas Enge <andreas@enge.fr>]

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On Sat, May 28, 2016 at 05:25:35PM +0200, Ludovic Courtès wrote:
> Could you save the offending .o files that are listed and upload them
> somewhere, or run diffoscope on them?

Of course the first time I forgot to add the "-K" parameter. So I redid the
build and saved the build tree. Here is the error message:
Comparing stages 2 and 3
warning: gcc/cc1plus-checksum.o differs
warning: gcc/cc1-checksum.o differs
Bootstrap comparison failure!
gcc/libgcov-driver-tool.o differs
gcc/tree-nested.o differs
gcc/df-scan.o differs
gcc/double-int.o differs
gcc/simplify-rtx.o differs
gcc/c/c-parser.o differs
gcc/c/c-typeck.o differs
gcc/gcov-dump.o differs
gcc/tree-ssa-math-opts.o differs
gcc/fold-const.o differs
gcc/cp/semantics.o differs
gcc/cp/optimize.o differs
gcc/tree-dfa.o differs
gcc/tree-inline.o differs
gcc/c-family/cilk.o differs
gcc/ipa-inline.o differs
gcc/lto-section-out.o differs
gcc/omp-low.o differs
gcc/tree-switch-conversion.o differs
gcc/lto-streamer-out.o differs
gcc/real.o differs
gcc/tree-ssa-sccvn.o differs
gcc/coverage.o differs
gcc/dwarf2cfi.o differs
libiberty/pic/sort.o differs
libiberty/pic/fibheap.o differs
libiberty/pic/simple-object-xcoff.o differs
libiberty/sort.o differs
libiberty/fibheap.o differs
libiberty/simple-object-xcoff.o differs
Makefile:21400: recipe for target 'compare' failed

Things do not look good. I am attaching one pair of differing object files.
Already their file size is radically different! The same holds for a few
other pairs of files I had a look at.

Andreas


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