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[Bug gas/26740] Extra filename generated by --gdwarf-4


From: cvs-commit at gcc dot gnu.org
Subject: [Bug gas/26740] Extra filename generated by --gdwarf-4
Date: Mon, 16 Nov 2020 19:53:54 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=26740

--- Comment #10 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The binutils-2_35-branch branch has been updated by Mark Wielaard
<mark@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ea873d892ebfae612aed5d308061b083b3f06636

commit ea873d892ebfae612aed5d308061b083b3f06636
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Fri Oct 16 04:03:20 2020 -0700

    gas: Reuse the input file entry in the file table

    Some instructions can be emitted (dwarf2_emit_insn is called) before the
    first .file <NUMBER> directive has been seen, which allocates the input
    file as the first file entry.  Reuse the input file entry in the file
    table.

            PR gas/25878
            PR gas/26740
            * dwarf2dbg.c (file_entry): Remove auto_assigned.
            (assign_file_to_slot): Remove the auto_assign argument.
            (allocate_filenum): Updated.
            (allocate_filename_to_slot): Reuse the input file entry in the
            file table.
            (dwarf2_where): Replace as_where with as_where_physical.
            * testsuite/gas/i386/dwarf5-line-1.d: New file.
            * testsuite/gas/i386/dwarf5-line-1.s: Likewise.
            * testsuite/gas/i386/i386.exp: Run dwarf5-line-1.

    (cherry picked from commit 6915020bb134ae29fd772295c66fd67b5944962d)

    gas: Always use as_where for preprocessed assembly codes

    Always clear the slot 1 if it was assigned to the input file before the
    first .file <NUMBER> directive has been seen.  Always use as_where to
    generate the correct debug infor for preprocessed assembly codes.

            PR gas/25878
            PR gas/26740
            * dwarf2dbg.c (allocate_filename_to_slot): Don't reuse the slot 1
            here.
            (dwarf2_where): Restore as_where.
            (dwarf2_directive_filename): Clear the slot 1 if it was assigned
            to the input file.
            * testsuite/gas/i386/dwarf5-line-2.d: New file.
            * testsuite/gas/i386/dwarf5-line-2.s: Likewise.
            * testsuite/gas/i386/dwarf5-line-3.d: Likewise.
            * testsuite/gas/i386/dwarf5-line-3.s: Likewise.
            * testsuite/gas/i386/i386.exp: Run dwarf5-line-2 and
            dwarf5-line-3.

    (cherry picked from commit bd0c565edbf4ba8121fded38e389530d7fa6f963)

    gas: Clear all auto-assigned file slots

    Since a file slot is auto-assigned for the #APP marker appeared before
    the first .file <NUMBER> directive has been seen, clear all auto-assigned
    file slots when seeing the first .file <NUMBER> directive.

            PR gas/26778
            * * dwarf2dbg.c (num_of_auto_assigned): New.
            (allocate_filenum): Increment num_of_auto_assigned.
            (dwarf2_directive_filename): Clear the slots auto-assigned
            before the first .file <NUMBER> directive was seen.
            * testsuite/gas/i386/dwarf4-line-1.d: New file.
            * testsuite/gas/i386/dwarf4-line-1.s: Likewise.
            * testsuite/gas/i386/i386.exp: Run dwarf4-line-1.

    (cherry picked from commit ae9d2233e61a98ff8dba56be10219aa5306ffc9a)

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