http://sourceware.org/bugzilla/show_bug.cgi?id=12726
Summary: cannot move location counter backwards, alignment
related regression on 2.21 branch
Product: binutils
Version: 2.21
Status: NEW
Severity: normal
Priority: P2
Component: ld
AssignedTo: unassig...@sources.redhat.com
ReportedBy: rgue...@gcc.gnu.org
Created attachment 5702
--> http://sourceware.org/bugzilla/attachment.cgi?id=5702
testcase
While the 2.21 release links the attached testcase just fine, the 2.21 branch
taken at Apr 19th fails to link it with
> ld -T romlayout32seg.lds code32seg.o -o rom32seg.o
romlayout32seg.lds:66 cannot move location counter backwards (from
00000000000067b0 to 00000000000067a0)
If one changes the linker script to add 0x4 more room for the sections
(which corresponds to their alignment) like
*(.rodata.__func__.10274)
. = ( 0x6782 - code32seg_start ) ;
*(.rodata.__func__.8035)
. = ( 0x6796 - code32seg_start ) ;
*(.rodata.__func__.8048)
. = ( 0x67aa - code32seg_start ) ;
*(.rodata.__func__.8075)
. = ( 0x67c0 - code32seg_start ) ;
*(.rodata.__func__.8115)
then the link succeeds. This looks like a bogus alignment calculation
as with the size of 0xe for the section 0x10 should be enough space
to properly align the data.
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