https://sourceware.org/bugzilla/show_bug.cgi?id=26040
Bug ID: 26040
Summary: [2.34 regression] binutils fails to build a cross-GCC
10.1 targeting aarch64-linux-gnu
Product: binutils
Version: 2.34
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gas
Assignee: unassigned at sourceware dot org
Reporter: bneumeier at gmail dot com
Target Milestone: ---
When attempting to build an aarch64 cross-toolchain on an x86_64 system, gcc
crashes on some files, e.g. libgcc/unwind-c.c, with error messages from gas:
/tmp/cc3usGId.s: Assembler messages:
/tmp/cc3usGId.s: Error: invalid operands (*ABS* and *GAS `expr' section*
sections) for `*' when setting `.LVU94'
/tmp/cc3usGId.s: Error: can't resolve value for symbol `.LVU94'
I'm attaching the compiled code for unwind-c as generated by gcc with standard
"-O2" optimization settings -- which gas rejects as described -- and with an
additional "-fno-align-loops" directive, which gas processes without
complaints.
I repeated the exact same build process using binutils 2.33.1, and this problem
did not occur -- hence my conjecture that this is a regression introduced in
2.34.
I originally filed this on the GCC bugzilla at
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95318, and some of the detail
there may be useful or informative. In particular, Andrew Pinski commented on
that bug that the fix for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95318
may be related.
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