https://sourceware.org/bugzilla/show_bug.cgi?id=30688
Bug ID: 30688
Summary: [2.41 regression] Warning: size (8) out of range,
ignored
Product: binutils
Version: 2.41
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gas
Assignee: unassigned at sourceware dot org
Reporter: raj.khem at gmail dot com
Target Milestone: ---
gas is now erroring out on following sample ( reduced from valgrind )
##################################
.text
mov text_buf(%rdx), %al
.bss
.lcomm text_buf, 9-1 #bad
#.lcomm text_buf, 7+1 #OK
##################################
% /tmp/obj/gas/as-new a.s
a.s: Assembler messages:
a.s:4: Warning: size (8) out of range, ignored
This works fine with 2.40 release
I have bisected it to this commit
commit 762acf217c4013bed5a4cc679e4bac78d13ce23a
Author: Jan Beulich <jbeul...@suse.com>
Date: Fri May 19 09:16:04 2023 +0200
gas: maintain O_constant signedness in more cases
Unary '~' doesn't really produce an unsigned result. Neither does
subtraction (unless taking operand values into consideration). And an
abstract operator applied to two operands which aren't both unsigned
can't be assumed to yield an unsigned result; exceptions are
- shifts, where only signedness of the left hand operand matters,
- comparisons, which - unlike unary '!' - produce signed results (they
deliver 0 or ~0, as opposed to '!', which yields 0 or 1),
- logical operators (yielding 0 or 1 and hence treated like unary '!').
While doing this (specifically while extending the all/quad testcase),
update .quad and .8byte documentation: With 64-bit architectures now
being common, it is highly inappropriate to state that these directives
unconditionally require bignums.
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