https://sourceware.org/bugzilla/show_bug.cgi?id=20312
Bug ID: 20312
Summary: [2.24 regression] Assertion failure from an attempt to
decrease text section alignment to 0 on unsuccessful
assembly
Product: binutils
Version: 2.27 (HEAD)
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gas
Assignee: unassigned at sourceware dot org
Reporter: [email protected]
CC: amodra at gmail dot com
Target Milestone: ---
This issue affects any targets whose default text section alignment is above 0,
typically RISC machines. On unsuccessful assembly, which may be due to any
reason, such supplying as a valid source like this:
.text
.byte 0
.err
processing is terminated with an assertion failure like:
test.s: Assembler messages:
test.s:3: Error: .err encountered
../as-new: BFD (GNU Binutils) 2.24.51.20140628 internal error, aborting at
.../gas/write.c line 608 in size_seg
../as-new: Please report this bug.
This is due to an attempt to decrease text section alignment to 0, requested
from `subsegs_finish_section' where `frag_align_code (alignment, 0)' is called
with `alignment' set to 0. This has been caused by commit 85024cd8bcb9 ("Run
write_object_file after errors") which enabled a call to
`subsegs_finish_section' from `subsegs_finish' from `write_object_file' at
unsuccessful completion, which previously wasn't made.
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