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authorH.J. Lu <hjl.tools@gmail.com>2021-01-09 06:43:11 -0800
committerH.J. Lu <hjl.tools@gmail.com>2021-01-09 06:51:51 -0800
commit50ad1254d5030d0804cbf89c758359ae202e8d55 (patch)
treed99205ba73874f43469734356f4f2d71ff8e428b /config
parenta9fd212a2416406f8503efe9e449718d0becfcb2 (diff)
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GCC: Pass --plugin to AR and RANLIB
Detect GCC LTO plugin. Pass --plugin to AR and RANLIB to support LTO build. * Makefile.tpl (AR): Add @AR_PLUGIN_OPTION@ (RANLIB): Add @RANLIB_PLUGIN_OPTION@. * configure.ac: Include config/gcc-plugin.m4. AC_SUBST AR_PLUGIN_OPTION and RANLIB_PLUGIN_OPTION. * libtool.m4 (_LT_CMD_OLD_ARCHIVE): Pass --plugin to AR and RANLIB if possible. * Makefile.in: Regenerated. * configure: Likewise. config/ * gcc-plugin.m4 (GCC_PLUGIN_OPTION): New. libiberty/ * Makefile.in (AR): Add @AR_PLUGIN_OPTION@ (RANLIB): Add @RANLIB_PLUGIN_OPTION@. (configure_deps): Depend on ../config/gcc-plugin.m4. * aclocal.m4: Include ../config/gcc-plugin.m4. * configure.ac: AC_SUBST AR_PLUGIN_OPTION and RANLIB_PLUGIN_OPTION. * configure: Regenerated. zlib/ * configure: Regenerated.
Diffstat (limited to 'config')
-rw-r--r--config/ChangeLog4
-rw-r--r--config/gcc-plugin.m428
2 files changed, 32 insertions, 0 deletions
diff --git a/config/ChangeLog b/config/ChangeLog
index f2be325..1ec5847 100644
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,3 +1,7 @@
+2021-01-09 H.J. Lu <hongjiu.lu@intel.com>
+
+ * gcc-plugin.m4 (GCC_PLUGIN_OPTION): New.
+
2021-01-09 Nick Clifton <nickc@redhat.com>
* 2.36 release branch crated.
diff --git a/config/gcc-plugin.m4 b/config/gcc-plugin.m4
index 8f27871..c5b72e9 100644
--- a/config/gcc-plugin.m4
+++ b/config/gcc-plugin.m4
@@ -124,3 +124,31 @@ AC_DEFUN([GCC_ENABLE_PLUGINS],
fi
fi
])
+
+dnl
+dnl
+dnl GCC_PLUGIN_OPTION
+dnl (SHELL-CODE_HANDLER)
+dnl
+AC_DEFUN([GCC_PLUGIN_OPTION],[dnl
+AC_MSG_CHECKING([for -plugin option])
+
+plugin_names="liblto_plugin.so liblto_plugin-0.dll cyglto_plugin-0.dll"
+plugin_option=
+for plugin in $plugin_names; do
+ plugin_so=`${CC} ${CFLAGS} --print-prog-name $plugin`
+ if test x$plugin_so = x$plugin; then
+ plugin_so=`${CC} ${CFLAGS} --print-file-name $plugin`
+ fi
+ if test x$plugin_so != x$plugin; then
+ plugin_option="--plugin $plugin_so"
+ break
+ fi
+done
+if test -n "$plugin_option"; then
+ $1="$plugin_option"
+ AC_MSG_RESULT($plugin_option)
+else
+ AC_MSG_RESULT([no])
+fi
+])