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install: Replace scripts/output-format.sed with objdump -f [BZ #26559]

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GNU ld and gold have supported --print-output-format since 2011. glibc
requires binutils>=2.25 (2015), so if LD is GNU ld or gold, we can
assume the option is supported.

lld is by default a cross linker supporting multiple targets. It auto
detects the file format and does not need OUTPUT_FORMAT. It does not
support --print-output-format.

By parsing objdump -f, we can support all the three linkers.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
This commit is contained in:
Fangrui Song
2021-01-11 11:56:54 -08:00
parent bf7db6d369
commit 87d583c6e8
6 changed files with 3 additions and 77 deletions
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19
configure vendored
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@ -623,7 +623,6 @@ libc_cv_cc_submachine
libc_cv_cc_nofma
libc_cv_mtls_dialect_gnu2
fno_unit_at_a_time
libc_cv_output_format
libc_cv_has_glob_dat
libc_cv_hashstyle
libc_cv_fpie
@ -6074,24 +6073,6 @@ fi
$as_echo "$libc_cv_has_glob_dat" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking linker output format" >&5
$as_echo_n "checking linker output format... " >&6; }
if ${libc_cv_output_format+:} false; then :
$as_echo_n "(cached) " >&6
else
if libc_cv_output_format=`
${CC-cc} -nostartfiles -nostdlib $no_ssp -Wl,--print-output-format 2>&5`
then
:
else
libc_cv_output_format=
fi
test -n "$libc_cv_output_format" || libc_cv_output_format=unknown
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_output_format" >&5
$as_echo "$libc_cv_output_format" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fno-toplevel-reorder -fno-section-anchors" >&5
$as_echo_n "checking for -fno-toplevel-reorder -fno-section-anchors... " >&6; }
if ${libc_cv_fno_toplevel_reorder+:} false; then :