jit: use 'configure' to replace hard-coded linker options (PR jit/64089 and PR jit/84288)

gcc/ChangeLog:
	PR jit/64089
	PR jit/84288
	* Makefile.in (LD_VERSION_SCRIPT_OPTION, LD_SONAME_OPTION): New.
	* configure: Regenerate.
	* configure.ac ("linker --version-script option"): New.
	("linker soname option"): New.

gcc/jit/ChangeLog:
	PR jit/64089
	PR jit/84288
	* Make-lang.in (COMMA): New.
	(LIBGCCJIT_VERSION_SCRIPT_OPTION): New.
	(LIBGCCJIT_SONAME_OPTION): New.
	(jit): Move --version-script and -soname linker options to the
	above.


Co-Authored-By: Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>

From-SVN: r258388

6 files changed, 125 insertions, 4 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5b2f59b..6bc488c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,13 @@
+2018-03-09  David Malcolm  <dmalcolm@redhat.com>
+	    Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
+
+	PR jit/64089
+	PR jit/84288
+	* Makefile.in (LD_VERSION_SCRIPT_OPTION, LD_SONAME_OPTION): New.
+	* configure: Regenerate.
+	* configure.ac ("linker --version-script option"): New.
+	("linker soname option"): New.
+
 2018-03-09  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/84775
diff --git a/gcc/Makefile.in b/gcc/Makefile.in
index c91499d..20bee04 100644
--- a/gcc/Makefile.in
+++ b/gcc/Makefile.in
@@ -1116,6 +1116,10 @@ endif
 
 LANG_MAKEFRAGS = @all_lang_makefrags@
 
+# Used by gcc/jit/Make-lang.in
+LD_VERSION_SCRIPT_OPTION = @ld_version_script_option@
+LD_SONAME_OPTION = @ld_soname_option@
+
 # Flags to pass to recursive makes.
 # CC is set by configure.
 # ??? The choices here will need some experimenting with.
diff --git a/gcc/configure b/gcc/configure
index b126287..c2d3f75 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -680,6 +680,8 @@ zlibdir
 HOST_LIBS
 enable_default_ssp
 thin_archive_support
+ld_soname_option
+ld_version_script_option
 libgcc_visibility
 gcc_cv_readelf
 gcc_cv_objdump
@@ -18446,7 +18448,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 18449 "configure"
+#line 18451 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -18552,7 +18554,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 18555 "configure"
+#line 18557 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -24453,6 +24455,48 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_ld_static_dynamic" >&5
 $as_echo "$gcc_cv_ld_static_dynamic" >&6; }
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking linker --version-script option" >&5
+$as_echo_n "checking linker --version-script option... " >&6; }
+gcc_cv_ld_version_script=no
+ld_version_script_option=''
+if test $in_tree_ld = yes || test x"$gnu_ld" = xyes; then
+  gcc_cv_ld_version_script=yes
+  ld_version_script_option='--version-script'
+elif test x$gcc_cv_ld != x; then
+  case "$target" in
+    # Solaris 2 ld always supports -M.  It also supports a subset of
+    # --version-script since Solaris 11.4, but requires
+    # -z gnu-version-script-compat to activate.
+    *-*-solaris2*)
+      gcc_cv_ld_version_script=yes
+      ld_version_script_option='-M'
+      ;;
+  esac
+fi
+# Don't AC_DEFINE result, only used in jit/Make-lang.in so far.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_ld_version_script" >&5
+$as_echo "$gcc_cv_ld_version_script" >&6; }
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking linker soname option" >&5
+$as_echo_n "checking linker soname option... " >&6; }
+gcc_cv_ld_soname=no
+if test $in_tree_ld = yes || test x"$gnu_ld" = xyes; then
+  gcc_cv_ld_soname=yes
+  ld_soname_option='-soname'
+elif test x$gcc_cv_ld != x; then
+  case "$target" in
+    *-*-darwin*)
+      gcc_cv_ld_soname=yes
+      ld_soname_option='-install_name'
+      ;;
+  esac
+fi
+# Don't AC_DEFINE result, only used in jit/Make-lang.in so far.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_ld_soname" >&5
+$as_echo "$gcc_cv_ld_soname" >&6; }
+
+
 if test x"$demangler_in_ld" = xyes; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker --demangle support" >&5
 $as_echo_n "checking linker --demangle support... " >&6; }
@@ -27870,6 +27914,7 @@ if test $gcc_cv_as_dwarf2_debug_view = yes; then
 $as_echo "#define HAVE_AS_DWARF2_DEBUG_VIEW 1" >>confdefs.h
 
 fi
+
     fi
  fi
 
diff --git a/gcc/configure.ac b/gcc/configure.ac
index 140c804..c3c76ac 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -3655,6 +3655,44 @@ if test x"$gcc_cv_ld_static_dynamic" = xyes; then
 fi
 AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
 
+AC_MSG_CHECKING(linker --version-script option)
+gcc_cv_ld_version_script=no
+ld_version_script_option=''
+if test $in_tree_ld = yes || test x"$gnu_ld" = xyes; then
+  gcc_cv_ld_version_script=yes
+  ld_version_script_option='--version-script'
+elif test x$gcc_cv_ld != x; then
+  case "$target" in
+    # Solaris 2 ld always supports -M.  It also supports a subset of
+    # --version-script since Solaris 11.4, but requires
+    # -z gnu-version-script-compat to activate.
+    *-*-solaris2*)
+      gcc_cv_ld_version_script=yes
+      ld_version_script_option='-M'
+      ;;
+  esac
+fi
+# Don't AC_DEFINE result, only used in jit/Make-lang.in so far.
+AC_MSG_RESULT($gcc_cv_ld_version_script)
+AC_SUBST(ld_version_script_option)
+
+AC_MSG_CHECKING(linker soname option)
+gcc_cv_ld_soname=no
+if test $in_tree_ld = yes || test x"$gnu_ld" = xyes; then
+  gcc_cv_ld_soname=yes
+  ld_soname_option='-soname'
+elif test x$gcc_cv_ld != x; then
+  case "$target" in
+    *-*-darwin*)
+      gcc_cv_ld_soname=yes
+      ld_soname_option='-install_name'
+      ;;
+  esac
+fi
+# Don't AC_DEFINE result, only used in jit/Make-lang.in so far.
+AC_MSG_RESULT($gcc_cv_ld_soname)
+AC_SUBST(ld_soname_option)
+
 if test x"$demangler_in_ld" = xyes; then
   AC_MSG_CHECKING(linker --demangle support)
   gcc_cv_ld_demangle=no
diff --git a/gcc/jit/ChangeLog b/gcc/jit/ChangeLog
index 8bb0002..8ae54f9 100644
--- a/gcc/jit/ChangeLog
+++ b/gcc/jit/ChangeLog
@@ -1,3 +1,14 @@
+2018-03-09  David Malcolm  <dmalcolm@redhat.com>
+	    Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
+
+	PR jit/64089
+	PR jit/84288
+	* Make-lang.in (COMMA): New.
+	(LIBGCCJIT_VERSION_SCRIPT_OPTION): New.
+	(LIBGCCJIT_SONAME_OPTION): New.
+	(jit): Move --version-script and -soname linker options to the
+	above.
+
 2018-01-25  David Malcolm  <dmalcolm@redhat.com>
 
 	PR jit/81672
diff --git a/gcc/jit/Make-lang.in b/gcc/jit/Make-lang.in
index d4362a9..ba78f8e 100644
--- a/gcc/jit/Make-lang.in
+++ b/gcc/jit/Make-lang.in
@@ -51,6 +51,19 @@ LIBGCCJIT_FILENAME = \
 LIBGCCJIT_LINKER_NAME_SYMLINK = $(LIBGCCJIT_LINKER_NAME)
 LIBGCCJIT_SONAME_SYMLINK = $(LIBGCCJIT_SONAME)
 
+# Conditionalize the use of the LD_VERSION_SCRIPT_OPTION and
+# LD_SONAME_OPTION depending if configure found them, using $(if)
+# We have to define a COMMA here, otherwise the commas in the "true"
+# result are treated as separators by the $(if).
+COMMA := ,
+LIBGCCJIT_VERSION_SCRIPT_OPTION = \
+	$(if $(LD_VERSION_SCRIPT_OPTION),\
+	  -Wl$(COMMA)$(LD_VERSION_SCRIPT_OPTION)$(COMMA)$(srcdir)/jit/libgccjit.map)
+
+LIBGCCJIT_SONAME_OPTION = \
+	$(if $(LD_SONAME_OPTION), \
+	     -Wl$(COMMA)$(LD_SONAME_OPTION)$(COMMA)$(LIBGCCJIT_SONAME))
+
 jit: $(LIBGCCJIT_FILENAME) \
 	$(LIBGCCJIT_SYMLINK) \
 	$(LIBGCCJIT_LINKER_NAME_SYMLINK) \
@@ -85,8 +98,8 @@ $(LIBGCCJIT_FILENAME): $(jit_OBJS) \
 	     $(jit_OBJS) libbackend.a libcommon-target.a libcommon.a \
 	     $(CPPLIB) $(LIBDECNUMBER) $(LIBS) $(BACKENDLIBS) \
 	     $(EXTRA_GCC_OBJS) \
-	     -Wl,--version-script=$(srcdir)/jit/libgccjit.map \
-	     -Wl,-soname,$(LIBGCCJIT_SONAME)
+	     $(LIBGCCJIT_VERSION_SCRIPT_OPTION) \
+	     $(LIBGCCJIT_SONAME_OPTION)
 
 $(LIBGCCJIT_SONAME_SYMLINK): $(LIBGCCJIT_FILENAME)
 	ln -sf $(LIBGCCJIT_FILENAME) $(LIBGCCJIT_SONAME_SYMLINK)