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Required for the expected "CU:" to be emitted for long
source-paths. See binutils/dwarf.c:
if (do_wide || strlen (directory) < 76)
printf (_("CU: %s/%s:\n"), directory, file_table[0].name);
else
printf ("%s:\n", file_table[0].name);
See also commit 5f410aa50ce2c, "testsuite/ld-elf/pr26936.d:
Pass -W."
gas/ChangeLog:
* testsuite/ld-elf/dwarf2-21.d: Pass -W.
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This is a testcase for the bug fixed by commit 5b4846283c3d. When
running the testcase on ia64 targets I found timeouts along with lots
of memory being consumed, due to ia64 gas not tracking text
sub-sections. Trying to add nops for ".nop 16" in ".text 1" resulting
in them being added to subsegment 0, with no increase to subsegment 1
size. This patch also fixes that problem.
Note that the testcase fails on ft32-elf, mn10200-elf, score-elf,
tic5x-elf, and xtensa-elf. The first two are relocation errors, the
last three appear to be the .nop directive failing to emit the right
number of nops. I didn't XFAIL any of them.
* config/tc-ia64.c (md): Add last_text_subseg.
(ia64_flush_insns, dot_endp): Use last_text_subseg.
(ia64_frob_label, md_assemble): Set last_text_subseg.
* testsuite/gas/elf/dwarf2-21.d,
* testsuite/gas/elf/dwarf2-21.s: New test.
* testsuite/gas/elf/elf.exp: Run it.
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