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configure.ac (gcc_cv_lto_plugin): Determine lto plugin support from plugin linker.

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* configure.ac (gcc_cv_lto_plugin): Determine lto plugin support
	from plugin linker.
	* configure: Regenerate.

From-SVN: r174426
This commit is contained in:
Rainer Orth 2011-05-30 08:45:07 +00:00 committed by Rainer Orth
parent 69940d4d9e
commit df33b41f11
3 changed files with 78 additions and 20 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2011-05-30 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* configure.ac (gcc_cv_lto_plugin): Determine lto plugin support
from plugin linker.
* configure: Regenerate.
2011-05-30 Ira Rosen <ira.rosen@linaro.org>
PR tree-optimization/49199

45
gcc/configure vendored
View File

@ -23206,14 +23206,38 @@ fi
$as_echo_n "checking linker plugin support... " >&6; }
gcc_cv_lto_plugin=0
if test -f liblto_plugin.la; then
if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld"; then
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2; then
gcc_cv_lto_plugin=2
elif test "$ld_is_gold" = yes -a "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -eq 20; then
gcc_cv_lto_plugin=1
save_ld_ver="$ld_ver"
save_ld_vers_major="$ld_vers_major"
save_ld_vers_minor="$ld_vers_minor"
save_ld_is_gold="$ld_is_gold"
ld_is_gold=no
if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld"; then
ld_ver="GNU ld"
# FIXME: ld_is_gold?
ld_vers_major="$gcc_cv_gld_major_version"
ld_vers_minor="$gcc_cv_gld_minor_version"
else
# Determine plugin linker version.
# FIXME: Partial duplicate from above, generalize.
ld_ver=`$ORIGINAL_PLUGIN_LD_FOR_TARGET --version 2>/dev/null | sed 1q`
if echo "$ld_ver" | grep GNU > /dev/null; then
if echo "$ld_ver" | grep "GNU gold" > /dev/null; then
ld_is_gold=yes
ld_vers=`echo $ld_ver | sed -n \
-e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'`
else
ld_vers=`echo $ld_ver | sed -n \
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
fi
elif test x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld" && echo "$ld_ver" | grep GNU > /dev/null; then
ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
fi
fi
# Determine plugin support.
if echo "$ld_ver" | grep GNU > /dev/null; then
# Require GNU ld or gold 2.21+ for plugin support by default.
if test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 21; then
gcc_cv_lto_plugin=2
@ -23221,11 +23245,12 @@ if test -f liblto_plugin.la; then
elif test "$ld_is_gold" = yes -a "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 20; then
gcc_cv_lto_plugin=1
fi
elif test x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" != x"$gcc_cv_ld"; then
# Allow -fuse-linker-plugin if plugin linker differs from
# default/specified linker.
gcc_cv_lto_plugin=1
fi
ld_ver="$save_ld_ver"
ld_vers_major="$save_ld_vers_major"
ld_vers_minor="$save_ld_vers_minor"
ld_is_gold="$save_ld_is_gold"
fi
cat >>confdefs.h <<_ACEOF

47
gcc/configure.ac
View File

@ -3249,14 +3249,40 @@ fi
AC_MSG_CHECKING(linker plugin support)
gcc_cv_lto_plugin=0
if test -f liblto_plugin.la; then
if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld"; then
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2; then
gcc_cv_lto_plugin=2
elif test "$ld_is_gold" = yes -a "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -eq 20; then
gcc_cv_lto_plugin=1
save_ld_ver="$ld_ver"
save_ld_vers_major="$ld_vers_major"
save_ld_vers_minor="$ld_vers_minor"
save_ld_is_gold="$ld_is_gold"
ld_is_gold=no
if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld"; then
ld_ver="GNU ld"
# FIXME: ld_is_gold?
ld_vers_major="$gcc_cv_gld_major_version"
ld_vers_minor="$gcc_cv_gld_minor_version"
else
# Determine plugin linker version.
# FIXME: Partial duplicate from above, generalize.
changequote(,)dnl
ld_ver=`$ORIGINAL_PLUGIN_LD_FOR_TARGET --version 2>/dev/null | sed 1q`
if echo "$ld_ver" | grep GNU > /dev/null; then
if echo "$ld_ver" | grep "GNU gold" > /dev/null; then
ld_is_gold=yes
ld_vers=`echo $ld_ver | sed -n \
-e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'`
else
ld_vers=`echo $ld_ver | sed -n \
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
fi
elif test x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld" && echo "$ld_ver" | grep GNU > /dev/null; then
ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
fi
changequote([,])dnl
fi
# Determine plugin support.
if echo "$ld_ver" | grep GNU > /dev/null; then
# Require GNU ld or gold 2.21+ for plugin support by default.
if test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 21; then
gcc_cv_lto_plugin=2
@ -3264,11 +3290,12 @@ if test -f liblto_plugin.la; then
elif test "$ld_is_gold" = yes -a "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 20; then
gcc_cv_lto_plugin=1
fi
elif test x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" != x"$gcc_cv_ld"; then
# Allow -fuse-linker-plugin if plugin linker differs from
# default/specified linker.
gcc_cv_lto_plugin=1
fi
ld_ver="$save_ld_ver"
ld_vers_major="$save_ld_vers_major"
ld_vers_minor="$save_ld_vers_minor"
ld_is_gold="$save_ld_is_gold"
fi
AC_DEFINE_UNQUOTED(HAVE_LTO_PLUGIN, $gcc_cv_lto_plugin,
[Define to the level of your linker's plugin support.])