X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=ld%2Ftestsuite%2Fld-plugin%2Flto.exp;h=18829fdd64a5ea8f4cb4305488ca826dad5ad7b4;hb=7dd36a6f1ca92cd4ca4776064c604cda7755bc44;hp=69946de68fa976205581477420a0be9751494593;hpb=b35d44f1af711925bfa4344ef00470fee67122f1;p=binutils-gdb.git

diff --git a/ld/testsuite/ld-plugin/lto.exp b/ld/testsuite/ld-plugin/lto.exp
index 69946de68fa..18829fdd64a 100644
--- a/ld/testsuite/ld-plugin/lto.exp
+++ b/ld/testsuite/ld-plugin/lto.exp
@@ -1,6 +1,5 @@
 # Expect script for ld-plugin LTO tests
-#   Copyright 2011, 2012, 2013
-#   Free Software Foundation, Inc.
+#   Copyright (C) 2011-2018 Free Software Foundation, Inc.
 #
 # This file is part of the GNU Binutils.
 #
@@ -19,18 +18,25 @@
 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
 # MA 02110-1301, USA.
 
+# Check to see if the C and C++ compilers work
+if { [which $CC] == 0 || [which $CXX] == 0 } {
+    return
+}
+
 # These tests require plugin and LTO.
 if { ![check_plugin_api_available]
      || ![check_lto_available] } {
     return
 }
 
+global INT128_CFLAGS
+
 global CFLAGS
 global CXXFLAGS
 set saved_CFLAGS "$CFLAGS"
 set saved_CXXFLAGS "$CXXFLAGS"
-regsub -all "\\-Wp,-D_FORTIFY_SOURCE=\[0-9\]+" $CFLAGS "" CFLAGS
-regsub -all "\\-Wp,-D_FORTIFY_SOURCE=\[0-9\]+" $CXXFLAGS "" CXXFLAGS
+regsub -all "(\\-Wp,)?-D_FORTIFY_SOURCE=\[0-9\]+" $CFLAGS "" CFLAGS
+regsub -all "(\\-Wp,)?-D_FORTIFY_SOURCE=\[0-9\]+" $CXXFLAGS "" CXXFLAGS
 
 proc restore_notify { } {
   global saved_CFLAGS
@@ -39,273 +45,448 @@ proc restore_notify { } {
   set CXXFLAGS "$saved_CXXFLAGS"
 }
 
-# Simple LTO tests and generate input files for complex LTO tests.
-set lto_link_tests {
-  {"LTO 1"
-   "-O2 -flto -fuse-linker-plugin" "-flto -fuse-linker-plugin"
-   {lto-1a.c lto-1b.c} {} "lto-1.exe"}
-  {"Build libdummy.a 2"
-   "" "-O2 -flto -fuse-linker-plugin"
-   {lto-2.c} {} "libdummy.a"}
-  {"LTO 2"
-   "-static -O2 -flto -fuse-linker-plugin tmpdir/lto-2.o -lm" ""
-   {dummy.c} {} "lto-2.exe"}
-  {"Build libdummy.a 3a"
-   "" "-flto"
-   {lto-3a.c} {} "libdummy.a"}
-  {"Build libdummy.a 3c"
-   "" "-O2"
-   {lto-3c.c} {} "libdummy.a"}
-  {"Build liblto-3.a"
-   "" "-flto -ffat-lto-objects"
-   {lto-3b.c} {} "liblto-3.a"}
-  {"Build libdummy.a 5a"
-   "" "-flto"
-   {lto-5a.c} {} "libdummy.a"}
-  {"Build libdummy.a 5b"
-   "" "-flto"
-   {lto-5b.c} {} "libdummy.a"}
-  {"LTO 6"
-   "-O2 -flto -fuse-linker-plugin" ""
-   {lto-6.c} {} "lto-6.exe" "c"}
-  {"Build libdummy.a 9"
-   "" "-O2 -finline -flto"
-   {lto-9.cc} {} "libdummy.a"}
-  {"Build libdummy.a 11a"
-   "" "-O -flto"
-   {lto-11a.c} {} "libdummy.a"}
-  {"Build libdummy.a 11b"
-   "" "-O -flto"
-   {lto-11b.c} {} "libdummy.a"}
-  {"Build libdummy.a 11c"
-   "" "-O"
-   {lto-11c.c} {} "libdummy.a"}
-  {"Build liblto-12.a"
-   "" "-O2 -flto"
-   {lto-12c.c} {} "liblto-12.a"}
-  {"Build libdummy.a 12"
-   "" "-O2 -flto"
-   {lto-12a.c lto-12b.c} {} "libdummy.a"}
-  {"Build libdummy.a 13"
-   "" "-O2 -flto"
-   {lto-13a.c lto-13b.c} {} "libdummy.a"}
-  {"Build liblto-13.a"
-   "" "-O2"
-   {lto-13c.c} {} "liblto-13.a"}
-  {"Build libdummy.a 14a"
-   "" "-flto"
-   {lto-14a.c lto-14b.c} {} "libdummy.a"}
-  {"Build liblto-14.a"
-   "" "-flto"
-   {lto-14c.c} {} "liblto-14.a"}
-  {"Build libdummy.a 15a"
-   "" "-flto"
-   {lto-15a.c} {} "libdummy.a"}
-  {"Build liblto-15.a"
-   "" "-flto"
-   {lto-15b.c} {} "liblto-15.a"}
-  {"PR ld/12696"
-   "-O2 -flto -fuse-linker-plugin -r -nostdlib" "-O2 -flto"
-   {pr12696-1.cc} {} "pr12696-1r.o" "c"}
-  {"Build libdummy.a PR ld/12758"
-   "" ""
-   {pr12758a.s} {} "libdummy.a"}
-  {"Build libpr12758.a"
-   "" "-flto -O2 -ffat-lto-objects"
-   {pr12758b.c} {} "libpr12758.a"}
-  {"PR ld/12758"
-   "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12758a.o -Wl,--start-group tmpdir/libpr12758.a -Wl,--end-group" ""
-   {dummy.c} {} "pr12758.exe"}
-  {"Build libdummy.a PR ld/12760"
-   "" ""
-   {pr12760a.c} {} "libdummy.a"}
-  {"Build libpr12760.a"
-   "" "-flto -O2 -ffat-lto-objects"
-   {pr12760b.c} {} "libpr12760.a"}
-  {"PR ld/12760"
-   "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12760a.o -Wl,--start-group tmpdir/libpr12760.a -Wl,--end-group" ""
-   {dummy.c} {} "pr12760.exe" "c" "warning: Bad bar"}
-  {"Build libpr13183.a"
-   "-T" "-flto -O2 -ffat-lto-objects"
-   {pr13183a.c} {} "libpr13183.a"}
-  {"Build libdummy.a PR ld/13183"
-   "" "-flto -O2"
-   {pr13183b.c} {} "libdummy.a"}
-  {"Build libdummy.a PR ld/13201"
-   "" "-flto -O2"
-   {pr13201.c} {} "libdummy.a"}
-  {"PR ld/13287"
-   "-flto -fuse-linker-plugin -Wl,--as-needed" "-flto"
-   {pr13287.cc} {} "pr13287.exe" "c++"}
-  {"PR ld/15323"
-   "" "-O2"
-   {pr15323a.c} {} "libdummy.a" "c"}
+set plugin_names {
+    liblto_plugin.so
+    liblto_plugin-0.dll
+    cyglto_plugin-0.dll
+}
+set plug_opt ""
+foreach plug $plugin_names {
+    set plug_so [run_host_cmd $CC "--print-prog-name $plug"]
+    if { $plug_so eq $plug } then {
+	set plug_so [run_host_cmd $CC "--print-file-name $plug"]
+    }
+    if { $plug_so ne $plug } then {
+	set plug_opt "--plugin $plug_so"
+	break
+    }
+}
+set lto_fat ""
+set lto_no_fat ""
+if { [check_lto_fat_available] } {
+  set lto_fat "-ffat-lto-objects"
+  set lto_no_fat "-fno-fat-lto-objects"
 }
 
+# Simple LTO tests and generate input files for complex LTO tests.
+set lto_link_tests [list \
+  [list "LTO 1" \
+   "-O2 -flto -fuse-linker-plugin" "-flto -fuse-linker-plugin" \
+   {lto-1a.c lto-1b.c} {} "lto-1.exe"] \
+  [list "Compile 2" \
+   "" "-O2 -flto -fuse-linker-plugin" \
+   {lto-2.c} {} ""] \
+  [list "LTO 2" \
+   "-static -O2 -flto -fuse-linker-plugin tmpdir/lto-2.o -lm" "" \
+   {dummy.c} {} "lto-2.exe"] \
+  [list "Compile 3a" \
+   "" "-flto" \
+   {lto-3a.c} {} ""] \
+  [list "Compile 3c" \
+   "" "-O2" \
+   {lto-3c.c} {} ""] \
+  [list "Build liblto-3.a" \
+   "" "-flto $lto_fat" \
+   {lto-3b.c} {} "liblto-3.a"] \
+  [list "Compile 5a" \
+   "" "-flto $lto_fat" \
+   {lto-5a.c} {} ""] \
+  [list "Compile 5b" \
+   "" "-flto $lto_fat" \
+   {lto-5b.c} {} ""] \
+  [list "LTO 6" \
+   "-O2 -flto -fuse-linker-plugin" "" \
+   {lto-6.c} {} "lto-6.exe" "c"] \
+  [list "Compile PR ld/12365" \
+   "" "-flto -O2 $lto_fat" \
+   {pr12365a.c pr12365b.c pr12365c.c} {} ""] \
+  [list "Compile 9" \
+   "" "-O2 -finline -flto" \
+   {lto-9.cc} {} "" "c++"] \
+  [list "Compile 11a" \
+   "" "-O -flto" \
+   {lto-11a.c} {} ""] \
+  [list "Compile 11b" \
+   "" "-O -flto" \
+   {lto-11b.c} {} ""] \
+  [list "Compile 11c" \
+   "" "-O" \
+   {lto-11c.c} {} ""] \
+  [list "Build liblto-12.a" \
+   "$plug_opt" "-O2 -flto" \
+   {lto-12c.c} {} "liblto-12.a"] \
+  [list "Compile 12" \
+   "" "-O2 -flto" \
+   {lto-12a.c lto-12b.c} {} ""] \
+  [list "Compile 13" \
+   "" "-O2 -flto" \
+   {lto-13a.c lto-13b.c} {} ""] \
+  [list "Build liblto-13.a" \
+   "" "-O2" \
+   {lto-13c.c} {} "liblto-13.a"] \
+  [list "Compile 14a" \
+   "" "-flto" \
+   {lto-14a.c lto-14b.c} {} ""] \
+  [list "Build liblto-14.a" \
+   "$plug_opt" "-flto" \
+   {lto-14c.c} {} "liblto-14.a"] \
+  [list "Compile 15a" \
+   "" "-flto" \
+   {lto-15a.c} {} ""] \
+  [list "Build liblto-15.a" \
+   "$plug_opt" "-flto" \
+   {lto-15b.c} {} "liblto-15.a"] \
+  [list "PR ld/12696" \
+   "-O2 -flto -fuse-linker-plugin -r -nostdlib" "-O2 -flto" \
+   {pr12696-1.cc} {} "pr12696-1r.o" "c++"] \
+  [list "Compile PR ld/12758" \
+   "" "" \
+   {pr12758a.s} {} ""] \
+  [list "Build libpr12758.a" \
+   "" "-flto -O2 $lto_fat" \
+   {pr12758b.c} {} "libpr12758.a"] \
+  [list "PR ld/12758" \
+   "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12758a.o -Wl,--start-group tmpdir/libpr12758.a -Wl,--end-group" "" \
+   {dummy.c} {} "pr12758.exe"] \
+  [list "Compile PR ld/12760" \
+   "" "-g -O0" \
+   {pr12760a.c} {} ""] \
+  [list "Build libpr12760.a" \
+   "" "-flto -O2 $lto_fat" \
+   {pr12760b.c} {} "libpr12760.a"] \
+  [list "PR ld/12760" \
+   "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12760a.o -Wl,--start-group tmpdir/libpr12760.a -Wl,--end-group" "" \
+   {dummy.c} {{warning "pr12760a.c:6: warning: Bad \\.?bar"}} \
+   "pr12760.exe" "c"] \
+  [list "Build libpr13183.a" \
+   "-T" "-flto -O2 $lto_fat" \
+   {pr13183a.c} {} "libpr13183.a"] \
+  [list "Compile PR ld/13183" \
+   "" "-flto -O2" \
+   {pr13183b.c} {} ""] \
+  [list "Compile PR ld/13201" \
+   "" "-flto -O2" \
+   {pr13201.c} {} ""] \
+  [list "PR ld/13287" \
+   "-flto -fuse-linker-plugin -Wl,--as-needed" "-flto" \
+   {pr13287.cc} {} "pr13287.exe" "c++"] \
+  [list "PR ld/15323 (1)" \
+   "" "-O2" \
+   {pr15323a.c} {} "" "c"] \
+  [list "PR ld/15323 (2)" \
+   "-O2 -flto -r -nostdlib" "-O2 -flto" \
+   {pr15323a.c} {} "pr15323a-r.o" "c"] \
+  [list "Compile(1) PR ld/pr16846" \
+   "" "-flto" \
+   {pr16846a.c pr16846b.c} {} ""] \
+  [list "Compile(2) PR ld/pr16846" \
+   "" "" \
+   {pr16846c.c} {} ""] \
+  [list "PR ld/pr16846(1)" \
+   "-flto -fuse-linker-plugin tmpdir/pr16846a.o tmpdir/pr16846b.o tmpdir/pr16846c.o" "" \
+   {dummy.c} {} "pr16846a.exe"] \
+  [list "PR ld/pr16846(2)" \
+   "-flto -fuse-linker-plugin tmpdir/pr16846a.o tmpdir/pr16846c.o tmpdir/pr16846b.o" "" \
+   {dummy.c} {} "pr16846b.exe"] \
+  [list "PR ld/19317 (1)" \
+   "$plug_opt" "-flto $lto_no_fat" \
+   {pr19317.c} {} "libpr19317.a"] \
+  [list "Build pr20276a.o" \
+   "" "-fno-lto" \
+   {pr20276a.c}] \
+  [list "Build pr20276b.o" \
+   "$plug_opt" "-flto $lto_no_fat" \
+   {pr20276b.c}] \
+  [list "Build pr20267a.o" \
+   "" "" \
+   {pr20267a.c}] \
+  [list "Build libpr20267a.a" \
+   "$plug_opt" "-flto $lto_fat" \
+   {pr20267b.c} {} "libpr20267a.a"] \
+  [list "Build libpr20267b.a" \
+   "$plug_opt" "-flto $lto_no_fat" \
+   {pr20267b.c} {} "libpr20267b.a"] \
+  [list "Build pr20321" \
+   "-flto -Wl,-plugin,$plug_so" "-flto" \
+   {pr20321.c} {{warning ".*: duplicated plugin"}} \
+   "pr20321" "c"] \
+  [list "Build pr22502a.o" \
+   "" "" \
+   {pr22502a.c}] \
+  [list "Build pr22502b.o" \
+   "$plug_opt" "-flto $lto_no_fat" \
+   {pr22502b.c}] \
+  [list "Build pr22751.a" \
+   "$plug_opt" "-flto $lto_no_fat $INT128_CFLAGS" \
+   {pr22751.c} {} "pr22751.a"] \
+]
+
 if { [at_least_gcc_version 4 7] } {
-    set lto_link_tests [concat $lto_link_tests {
-      {"Build libdummy.a PR ld/12942 (1)"
-       "" "-flto -O2"
-       {pr12942a.cc pr12942c.cc} {} "libdummy.a" "c++"}
-      {"Build libdummy.a PR ld/12942 (2)"
-       "" "-O0"
-       {pr12942b.cc} {} "libdummy.a" "c++"}
-    }]
+    set lto_link_tests [concat $lto_link_tests [list \
+      [list "Compile PR ld/12942 (1)" \
+       "" "-flto -O2" \
+       {pr12942a.cc pr12942c.cc} {} "" "c++"] \
+      [list "Compile PR ld/12942 (2)" \
+       "" "-O0" \
+       {pr12942b.cc} {} "" "c++"] \
+    ]]
 }
 
+set lto_compile_elf_tests [list \
+  [list "Compile 7" \
+   "" "-flto -O2" \
+   {lto-7a.c lto-7b.c lto-7c.c} {} ""] \
+  [list "Compile 8a" \
+   "" "-O2" \
+   {lto-8a.c} {} ""] \
+  [list "Compile 8b" \
+   "" "-flto -O2" \
+   {lto-8b.c} {} ""] \
+  [list "PR ld/23309" \
+   "-O2 -flto -fuse-linker-plugin -fvisibility=hidden -ffunction-sections -Wl,--gc-sections,-u,KeepMe" \
+   "-O2 -flto -fuse-linker-plugin -fvisibility=hidden -ffunction-sections" \
+   {pr23309.c} {{"nm" {} "pr23309.d"}} "pr23309.exe" "c"] \
+]
+
 # Generate input files for complex LTO tests for ELF.
-set lto_link_elf_tests {
-  {"Build libdummy.a 7"
-   "" "-flto -O2"
-   {lto-7a.c lto-7b.c lto-7c.c} {} "libdummy.a"}
-  {"Build liblto-7.so"
-   "-shared" "-O2 -fpic"
-   {lto-7d.c} {} "liblto-7.so" "c"}
-  {"Build libdummy.a 8a"
-   "" "-O2"
-   {lto-8a.c} {} "libdummy.a"}
-  {"Build libdummy.a 8b"
-   "" "-flto -O2"
-   {lto-8b.c} {} "libdummy.a"}
-  {"Build liblto-17a.so"
-   "-shared -O2 -fpic -flto -fuse-linker-plugin" "-O2 -fpic -flto"
-   {lto-17a.c} {{"nm" {} "lto-17a.d"}} "liblto-17a.so" "c"}
-  {"Build liblto-17b.so 1"
-   "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto"
-   {lto-17b.c} {{"nm" {} "lto-17b-1.d"}} "liblto-17b.so"}
-  {"Build liblto-17b.so 2"
-   "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto"
-   {lto-17b.c} {{"nm" {} "lto-17b-2.d"}} "liblto-17b.so"}
-  {"PR ld/12982"
-   "-O2 -flto -fuse-linker-plugin" "-O2 -flto"
-   {pr12982.c} {{"readelf" {-l --wide} "pr12982.d"}} "pr12982.exe"}
-  {"PR ld/12975"
-   "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib -Wl,-version-script,pr12975.t" "-O2 -flto"
-   {pr12975.c} {{"readelf" {-s --wide} "pr12975.d"}} "pr12975.so" "c"}
-  {"PR ld/13229"
-   "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -finline -fno-early-inlining -flto"
-   {pr13229.cc} {{"readelf" {-s --wide} "pr13229.d"}} "pr13229.so" "c++"}
-  {"PR ld/13244"
-   "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -fno-early-inlining -flto"
-   {pr13244.c} {{"readelf" {-s --wide} "pr13244.d"}} "pr13244.so" "c"}
-  {"Build libpr15146a.a"
-   "" "-flto -O2"
-   {pr15146a.c} {} "lib15146a.a"}
-  {"Build pr15146b.so"
-   "-shared" "-O2 -fpic"
-   {pr15146b.c} {} "pr15146b.so" "c"}
-  {"Build pr15146c.so"
-   "-shared -Wl,--no-as-needed tmpdir/pr15146b.so" "-O2 -fpic"
-   {pr15146c.c} {} "pr15146c.so" "c"}
-  {"PR ld/15146 (1)"
-   "-O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146a.o tmpdir/pr15146c.so" ""
-   {dummy.c} {{"readelf" {-d} "pr15146.d"}} "pr15146a.exe"}
-  {"Build libpr15146d.a"
-   "" "-flto -O2"
-   {pr15146d.c} {} "lib15146d.a"}
-  {"Build libpr15146d.a"
-   "" "-flto -O2"
-   {pr15146d.c} {} "lib15146d.a"}
+set lto_link_elf_tests [list \
+  [list "Build liblto-7.so" \
+   "-shared" "-O2 -fpic" \
+   {lto-7d.c} {} "liblto-7.so" "c"] \
+  [list "Build liblto-17a.so" \
+   "-shared -O2 -fpic -flto -fuse-linker-plugin" "-O2 -fpic -flto" \
+   {lto-17a.c} {{"nm" {} "lto-17a.d"}} "liblto-17a.so" "c"] \
+  [list "Build liblto-17b.so 1" \
+   "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto" \
+   {lto-17b.c} {{"nm" {} "lto-17b-1.d"}} "liblto-17b.so"] \
+  [list "Build liblto-17b.so 2" \
+   "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto" \
+   {lto-17b.c} {{"nm" {} "lto-17b-2.d"}} "liblto-17b.so"] \
+  [list "PR ld/12975" \
+   "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib -Wl,-version-script,pr12975.t" "-O2 -flto" \
+   {pr12975.c} {{"readelf" {-s --wide} "pr12975.d"}} "pr12975.so" "c"] \
+  [list "PR ld/13229" \
+   "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -finline -fno-early-inlining -flto" \
+   {pr13229.cc} {{"readelf" {-s --wide} "pr13229.d"}} "pr13229.so" "c++"] \
+  [list "PR ld/13244" \
+   "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -fno-early-inlining -flto" \
+   {pr13244.c} {{"readelf" {-s --wide} "pr13244.d"}} "pr13244.so" "c"] \
+  [list "Build libpr15146a.a" \
+   "$plug_opt" "-flto -O2" \
+   {pr15146a.c} {} "lib15146a.a"] \
+  [list "Build pr15146b.so" \
+   "-shared" "-O2 -fpic" \
+   {pr15146b.c} {} "pr15146b.so" "c"] \
+  [list "Build pr15146c.so" \
+   "-shared -Wl,--no-as-needed tmpdir/pr15146b.so" "-O2 -fpic" \
+   {pr15146c.c} {} "pr15146c.so" "c"] \
+  [list "PR ld/15146 (1)" \
+   "-O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146a.o tmpdir/pr15146c.so" "" \
+   {dummy.c} {{"readelf" {-d} "pr15146.d"}} "pr15146a.exe"] \
+  [list "Build libpr15146d.a" \
+   "$plug_opt" "-flto -O2" \
+   {pr15146d.c} {} "lib15146d.a"] \
+  [list "Build libpr16746a.a" \
+   "" "" \
+   {pr16746a.c pr16746b.c} {} "lib15146a.a"] \
+  [list "Build libpr16746b.a" \
+   "$plug_opt" "-O2 -flto" \
+   {pr16746c.c pr16746d.c} {} "lib15146b.a"] \
+  [list "PR ld/16746 (1)" \
+   "-O2 -flto -fuse-linker-plugin tmpdir/pr16746a.o tmpdir/pr16746c.o" "-O2 -flto" \
+   {dummy.c} {} "pr16746a.exe"] \
+  [list "PR ld/16746 (2)" \
+   "-O2 -flto -fuse-linker-plugin tmpdir/pr16746c.o tmpdir/pr16746a.o" "-O2 -flto" \
+   {dummy.c} {} "pr16746b.exe"] \
+  [list "Build pr21382a.o" \
+   "" "-O2 -flto" \
+   {pr21382a.c} {} "" "c"] \
+  [list "Build pr21382.so" \
+   "-shared" "-O2 -fpic" \
+   {pr21382b.c} {} "pr21382.so" "c"] \
+  [list {Build pr22220lib.so} \
+   {-shared -Wl,--version-script=pr22220lib.ver} {-fPIC} \
+   {pr22220lib.cc} {} {pr22220lib.so} {c++}] \
+  [list {Build pr22220main.o} \
+   {} {-flto} \
+   {pr22220main.cc} {} {} {c++}] \
+]
+
+# PR 14918 checks that libgcc is not spuriously included in a shared link of
+# an empty program.  The ARM crt1.o startup code however calls __libc_csu_init
+# in /usr/lib/libc_nonshared.a(elf-init.oS).  This in turn needs
+# __aeabi_unwind_cpp_pr0@@GCC_3.5 which is provided by libgcc_s.so.1, so the
+# test fails.  Hence this code to skip the test.
+if { ! [istarget "arm*-*-*"] } {
+    set lto_link_elf_tests [concat $lto_link_elf_tests [list \
+  [list "PR ld/14918" \
+   "-flto" "-flto" \
+   {pr14918.c} {{"readelf" {-d --wide} "pr14918.d"}} "pr14918.exe" "c"] \
+  ]]
 }
 
-# Check final symbols in executables.
-set lto_link_symbol_tests {
-  {"LTO 3 symbol"
-   "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" ""
-   {dummy.c} {{"nm" {} "lto-3.d"}} "lto-3.exe" "c"}
-  {"LTO 5 symbol"
-   "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" ""
-   {dummy.c} {{"nm" {} "lto-5.d"}} "lto-5.exe" "c"}
-  {"LTO 9 symbol"
-   "-O2 -flto -fuse-linker-plugin tmpdir/lto-9.o" ""
-   {dummy.c} {{"nm" {-C} "lto-9.d"}} "lto-9.exe" "c++"}
-  {"LTO 16a symbol"
-   "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin" "-flto"
-   {lto-16a.c} {{"nm" {} "lto-16a.d"}} "lto-16.exe" "c"}
-  {"LTO 16b symbol"
-   "-O2 -Wl,-e,foo -u bar -nostdlib -flto -fuse-linker-plugin" "-flto"
-   {lto-16a.c lto-16b.c} {{"nm" {} "lto-16b.d"}} "lto-16b.exe" "c"}
-  {"PR ld/13183"
-   "-O2 -flto -fuse-linker-plugin tmpdir/pr13183b.o tmpdir/libpr13183.a" ""
-   {dummy.c} {{"nm" {} "pr13183.d"}} "pr13183.exe" "c"}
+# PR 12982 checks that an executable stack is not created by default
+# when using the LTO plugin.  The HPPA target however requires an
+# executable stack for syscall restarts and signal returns, so we
+# skip this test for that target.
+if { ! [istarget "hppa*-*-*"] } {
+    set lto_link_elf_tests [concat $lto_link_elf_tests [list \
+  [list "PR ld/12982" \
+   "-O2 -flto -fuse-linker-plugin" "-O2 -flto" \
+   {pr12982.c} {{"readelf" {-l --wide} "pr12982.d"}} "pr12982.exe"] \
+  ]]
 }
 
+# Check final symbols in executables.
+set lto_link_symbol_tests [list \
+  [list "LTO 3 symbol" \
+   "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" "" \
+   {dummy.c} {{"nm" {} "lto-3.d"}} "lto-3.exe" "c"] \
+  [list "LTO 5 symbol" \
+   "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" "" \
+   {dummy.c} {{"nm" {} "lto-5.d"}} "lto-5.exe" "c"] \
+  [list "LTO 9 symbol" \
+   "-O2 -flto -fuse-linker-plugin tmpdir/lto-9.o" "" \
+   {dummy.c} {{"nm" {-C} "lto-9.d"}} "lto-9.exe" "c++"] \
+  [list "LTO 16a symbol" \
+   "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin" "-flto" \
+   {lto-16a.c} {{"nm" {} "lto-16a.d"}} "lto-16.exe" "c"] \
+  [list "LTO 16b symbol" \
+   "-O2 -Wl,-e,foo -u bar -nostdlib -flto -fuse-linker-plugin" "-flto" \
+   {lto-16a.c lto-16b.c} {{"nm" {} "lto-16b.d"}} "lto-16b.exe" "c"] \
+  [list "PR ld/13183" \
+   "-O2 -flto -fuse-linker-plugin tmpdir/pr13183b.o tmpdir/libpr13183.a" "" \
+   {dummy.c} {{"nm" {} "pr13183.d"}} "pr13183.exe" "c"] \
+]
+
 # LTO run-time tests.
-set lto_run_tests {
-  {"LTO 3a"
-   "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" ""
-   {dummy.c} "lto-3b.exe" "lto-3.out" "" "c"}
-  {"LTO 3b"
-   "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/lto-3.o" ""
-   {dummy.c} "lto-3c.exe" "lto-3.out" "" "c"}
-  {"LTO 3c"
-   "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o -Wl,--whole-archive tmpdir/liblto-3.a -Wl,--no-whole-archive tmpdir/liblto-3.a" ""
-   {dummy.c} "lto-3d.exe" "lto-3.out" "" "c"}
-  {"LTO 5"
-   "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" ""
-   {dummy.c} "lto-5.exe" "lto-5.out" "" "c"}
-  {"LTO 11"
-   "-O -flto -fuse-linker-plugin tmpdir/liblto-11.a" ""
-   {dummy.c} "lto-11.exe" "lto-11.out" "" "c"}
-  {"LTO 12a"
-   "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/liblto-12.a tmpdir/lto-12b.o" ""
-   {dummy.c} "lto-12a.exe" "lto-12.out" "" "c"}
-  {"LTO 12b"
-   "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/lto-12b.o tmpdir/liblto-12.a" ""
-   {dummy.c} "lto-12b.exe" "lto-12.out" "" "c"}
-  {"LTO 13"
-   "-O -flto -fuse-linker-plugin tmpdir/lto-13a.o tmpdir/liblto-13.a tmpdir/lto-13b.o" ""
-   {dummy.c} "lto-13.exe" "lto-13.out" "" "c"}
-  {"LTO 14"
-   "-O2 -flto -fuse-linker-plugin tmpdir/lto-14a.o -Wl,--whole-archive tmpdir/liblto-14.a -Wl,--no-whole-archive tmpdir/lto-14b.o" ""
-   {dummy.c} "lto-14.exe" "lto-14.out" "" "c"}
-  {"LTO 15"
-   "-O2 -flto -fuse-linker-plugin -Wl,--start-group tmpdir/liblto-15.a tmpdir/lto-15a.o -Wl,--end-group" ""
-   {dummy.c} "lto-15.exe" "lto-15.out" "" "c"}
-  {"PR ld/13066"
-   "-O2 -flto -fuse-linker-plugin" ""
-   {pr13066.cc} "pr13066.exe" "pr13066.out" "" "c++"}
-  {"PR ld/13201"
-   "-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr13201.o -lm" ""
-   {dummy.c} "pr13201.exe" "pr13201.out" "" "c"}
-  {"PR ld/15323"
-   "-O2 -flto -fuse-linker-plugin tmpdir/pr15323a.o" ""
-   {pr15323b.c} "pr15323.exe" "pr15323.out" "-flto -O2" "c"}
-}
+set lto_run_tests [list \
+  [list "LTO 3a" \
+   "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" "" \
+   {dummy.c} "lto-3b.exe" "lto-3.out" "" "c"] \
+  [list "LTO 3b" \
+   "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/lto-3.o" "" \
+   {dummy.c} "lto-3c.exe" "lto-3.out" "" "c"] \
+  [list "LTO 3c" \
+   "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o -Wl,--whole-archive tmpdir/liblto-3.a -Wl,--no-whole-archive tmpdir/liblto-3.a" "" \
+   {dummy.c} "lto-3d.exe" "lto-3.out" "" "c"] \
+  [list "LTO 5" \
+   "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" "" \
+   {dummy.c} "lto-5.exe" "lto-5.out" "" "c"] \
+  [list "LTO 11" \
+   "-O -flto -fuse-linker-plugin tmpdir/liblto-11.a" "" \
+   {dummy.c} "lto-11.exe" "lto-11.out" "" "c"] \
+  [list "LTO 12a" \
+   "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/liblto-12.a tmpdir/lto-12b.o" "" \
+   {dummy.c} "lto-12a.exe" "lto-12.out" "" "c"] \
+  [list "LTO 12b" \
+   "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/lto-12b.o tmpdir/liblto-12.a" "" \
+   {dummy.c} "lto-12b.exe" "lto-12.out" "" "c"] \
+  [list "LTO 13" \
+   "-O -flto -fuse-linker-plugin tmpdir/lto-13a.o tmpdir/liblto-13.a tmpdir/lto-13b.o" "" \
+   {dummy.c} "lto-13.exe" "lto-13.out" "" "c"] \
+  [list "LTO 14" \
+   "-O2 -flto -fuse-linker-plugin tmpdir/lto-14a.o -Wl,--whole-archive tmpdir/liblto-14.a -Wl,--no-whole-archive tmpdir/lto-14b.o" "" \
+   {dummy.c} "lto-14.exe" "lto-14.out" "" "c"] \
+  [list "LTO 15" \
+   "-O2 -flto -fuse-linker-plugin -Wl,--start-group tmpdir/liblto-15.a tmpdir/lto-15a.o -Wl,--end-group" "" \
+   {dummy.c} "lto-15.exe" "lto-15.out" "" "c"] \
+  [list "PR ld/13066" \
+   "-O2 -flto -fuse-linker-plugin" "" \
+   {pr13066.cc} "pr13066.exe" "pr13066.out" "" "c++"] \
+  [list "PR ld/13201" \
+   "-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr13201.o -lm" "" \
+   {dummy.c} "pr13201.exe" "pr13201.out" "" "c"] \
+  [list "PR ld/15323 (3)" \
+   "-O2 -flto -fuse-linker-plugin tmpdir/pr15323a.o" "" \
+   {pr15323b.c} "pr15323.exe" "pr15323.out" "-flto -O2" "c"] \
+  [list "PR ld/15323 (4)" \
+   "-O2 -flto tmpdir/pr15323a-r.o" "" \
+   {dummy.c} "pr15323a.exe" "pr15323.out" "-flto -O2" "c"] \
+  [list "PR ld/19317 (3)" \
+   "-O2 -flto tmpdir/pr19317-r.o" "" \
+   {dummy.c} "pr19317.exe" "pr19317.out" "-flto -O2" "c"] \
+  [list "Run pr20276" \
+   "-O2 -flto tmpdir/pr20276a.o tmpdir/pr20276b.o" "" \
+   {dummy.c} "pr20276" "pass.out" "-flto -O2" "c"] \
+  [list "Run pr20267a" \
+   "-O2 -flto tmpdir/pr20267a.o tmpdir/libpr20267a.a" "" \
+   {dummy.c} "pr20267a" "pass.out" "-flto -O2" "c"] \
+  [list "Run pr20267b" \
+   "-O2 -flto tmpdir/pr20267a.o tmpdir/libpr20267b.a" "" \
+   {dummy.c} "pr20267b" "pass.out" "-flto -O2" "c"] \
+  [list "Run pr22502" \
+   "-O2 -flto tmpdir/pr22502a.o tmpdir/pr22502b.o" "" \
+   {dummy.c} "pr20267" "pass.out" "-flto -O2" "c"] \
+  [list "Run pr22751" \
+   "-O2 -flto" "" \
+   {dummy.c} "pr22751" "pass.out" "-flto -O2" "c" "" \
+   "-Wl,--whole-archive tmpdir/pr22751.a -Wl,--no-whole-archive"] \
+]
 
 if { [at_least_gcc_version 4 7] } {
-    set lto_run_tests [concat $lto_run_tests {
-      {"PR ld/12942 (1)"
-       "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942b.o" ""
-       {dummy.c} "pr12942a.exe" "pr12942.out" "" "c++"}
-      {"PR ld/12942 (2)"
-       "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942c.o" ""
-       {dummy.c} "pr12942c.exe" "pr12942.out" "" "c++"}
-    }]
+    set lto_run_tests [concat $lto_run_tests [list \
+      [list "PR ld/12942 (1)" \
+       "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942b.o" "" \
+       {dummy.c} "pr12942a.exe" "pr12942.out" "" "c++"] \
+      [list "PR ld/12942 (2)" \
+       "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942c.o" "" \
+       {dummy.c} "pr12942c.exe" "pr12942.out" "" "c++"] \
+    ]]
 }
 
+# LTO run-time tests for ELF which require shared library support.
+set lto_run_elf_shared_tests [list \
+  [list "LTO 7" \
+   "-O2 -flto -fuse-linker-plugin tmpdir/lto-7b.o tmpdir/lto-7c.o tmpdir/lto-7a.o -Wl,--no-as-needed tmpdir/liblto-7.so" "" \
+   {dummy.c} "lto-7.exe" "lto-7.out" "" "c"] \
+  [list "Run pr21382" \
+   "-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr21382a.o tmpdir/pr21382.so" "" \
+   {dummy.c} "pr21382.exe" "pass.out" "" "c"] \
+  [list {pr22220a} \
+   {-flto -fuse-linker-plugin tmpdir/pr22220main.o tmpdir/pr22220lib.so} {} \
+   {dummy.c} {pr22220a.exe} {pass.out} {} {c++}] \
+  [list {pr22220b} \
+   {-flto -fuse-linker-plugin -Wl,--no-as-needed tmpdir/pr22220lib.so tmpdir/pr22220main.o} {} \
+   {dummy.c} {pr22220b.exe} {pass.out} {} {c++}] \
+]
+
 # LTO run-time tests for ELF
-set lto_run_elf_tests {
-  {"LTO 7"
-   "-O2 -flto -fuse-linker-plugin tmpdir/lto-7b.o tmpdir/lto-7c.o tmpdir/lto-7a.o -Wl,--no-as-needed tmpdir/liblto-7.so" ""
-   {dummy.c} "lto-7.exe" "lto-7.out" "" "c"}
-  {"LTO 8"
-   "-O2 -flto -fuse-linker-plugin tmpdir/lto-8b.o tmpdir/lto-8a.o" ""
-   {dummy.c} "lto-8.exe" "lto-8.out" "" "c"}
-  {"LTO TLS IE"
-   "-O2 -flto -fuse-linker-plugin" ""
-   {run-ie.c} "run-ie.exe" "run-ie.out" "" "c"}
-}
+set lto_run_elf_tests [list \
+  [list "LTO 8" \
+   "-O2 -flto -fuse-linker-plugin tmpdir/lto-8b.o tmpdir/lto-8a.o" "" \
+   {dummy.c} "lto-8.exe" "lto-8.out" "" "c"] \
+  [list "LTO TLS IE" \
+   "-O2 -flto -fuse-linker-plugin" "" \
+   {run-ie.c} "run-ie.exe" "run-ie.out" "" "c"] \
+]
 
 run_cc_link_tests $lto_link_tests
 
+# These compilation tests generate intermediate object files which will be used
+# by some elf tests besides shared libs tests.  So, always compile them.
+run_cc_link_tests $lto_compile_elf_tests
+
 # Restrict these to ELF targets that support shared libs and PIC.
-if { [is_elf_format]
-     && [run_host_cmd_yesno $CC "-shared -fPIC $srcdir/$subdir/dummy.c -o tmpdir/t.so"] } {
+if { [is_elf_format] && [check_lto_shared_available] } {
     run_cc_link_tests $lto_link_elf_tests
     set testname "PR ld/15146 (2)"
-    set exec_output [run_host_cmd "$CC" "$gcc_gas_flag $gcc_ld_flag -O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146d.o tmpdir/pr15146c.so"]
-    if { [ regexp "undefined reference to symbol 'xxx'" $exec_output ] } {
+    set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146d.o tmpdir/pr15146c.so"]
+    if { [ regexp "undefined reference to symbol '\\.?xxx'" $exec_output ] } {
+	pass $testname
+    } {
+	fail $testname
+    }
+    set testname "PR ld/16746 (3)"
+    set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746b.o tmpdir/pr16746d.o"]
+    if { [ regexp "warning: \\.?foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
+	pass $testname
+    } {
+	fail $testname
+    }
+    set testname "PR ld/16746 (4)"
+    set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746d.o tmpdir/pr16746b.o"]
+    if { [ regexp "warning: \\.?foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
 	pass $testname
     } {
 	fail $testname
@@ -314,7 +495,7 @@ if { [is_elf_format]
 
 set testname "Build liblto-11.a"
 remote_file host delete "tmpdir/liblto-11.a"
-set catch_output [run_host_cmd "$ar" "rc tmpdir/liblto-11.a tmpdir/lto-11a.o tmpdir/lto-11b.o tmpdir/lto-11c.o"]
+set catch_output [run_host_cmd "$ar" "rc $plug_opt tmpdir/liblto-11.a tmpdir/lto-11a.o tmpdir/lto-11b.o tmpdir/lto-11c.o"]
 if {![string match "" $catch_output]} {
     unresolved $testname
     restore_notify
@@ -323,13 +504,94 @@ if {![string match "" $catch_output]} {
 
 if { [at_least_gcc_version 4 7] } {
     # Check expected LTO linker errors.
+    # Since the asm symbol name hack in pr12365b.c doesn't work on all
+    # targets, run PR ld/12365 tests only for known targets.
+    if { ([istarget "i?86-*-elf*"]
+	   || [istarget "i?86-*-linux*"]
+	   || [istarget "i?86-*-gnu*"]
+	   || [istarget "i?86-*-nacl*"]
+	   || [istarget "x86_64-*-nacl*"]
+	   || [istarget "x86_64-*-linux*"]
+	   || [istarget "amd64-*-linux*"]) } {
+	set testname "PR ld/12365"
+	set exec_output [run_host_cmd "$CC" "-O2 -flto -flto-partition=none -fuse-linker-plugin -o tmpdir/pr12365 tmpdir/pr12365a.o tmpdir/pr12365b.o tmpdir/pr12365c.o"]
+	set exec_output [prune_warnings $exec_output]
+	if { [ regexp "undefined reference to `my_bcopy'" $exec_output ] } {
+	    # Linker should catch the reference to undefined `my_bcopy'
+	    # error caused by a GCC bug.
+	    pass $testname
+	} elseif { [ string match "" $exec_output ] } {
+	    global READELF
+	    set exec_output [run_host_cmd "$READELF" "-s -W tmpdir/pr12365"]
+	    if { [ regexp "my_bcopy" $exec_output ] } {
+		# Verify that there is no `my_bcopy' symbol in executable.
+		fail $testname
+	    } {
+		pass $testname
+	    }
+	} {
+	    fail $testname
+	}
+
+	run_cc_link_tests [list \
+	    [list \
+		"Build pr22721a.so" \
+		"-shared -nostdlib -nostartfiles -Wl,-version-script,pr22721.t" \
+		"" \
+		{pr22721a.s} \
+		{} \
+		"pr22721a.so" \
+	    ] \
+	    [list \
+		"Build pr22721b.o" \
+		"$plug_opt" \
+		"-O2 -fPIC -flto $lto_no_fat" \
+		{pr22721b.c} \
+	    ] \
+	    [list \
+		"Build PR ld/pr22721" \
+		"-O2 -flto -fuse-linker-plugin -nostdlib -nostartfiles \
+		-Wl,-e,_start tmpdir/pr22721b.o tmpdir/pr22721a.so" \
+		"" \
+		{dummy.c} \
+		{} \
+		"pr22721.exe"
+	    ] \
+	]
+    }
     set testname "PR ld/12942 (3)"
-    set exec_output [run_host_cmd "$CXX" "$gcc_gas_flag $gcc_ld_flag -O2 -flto -fuse-linker-plugin tmpdir/pr12942b.o tmpdir/pr12942a.o"]
-    if { [ regexp "undefined reference to `link_error\\(\\)'" $exec_output ] } {
+    set exec_output [run_host_cmd "$CXX" "-O2 -flto -fuse-linker-plugin tmpdir/pr12942b.o tmpdir/pr12942a.o"]
+    if { [ regexp "undefined reference to `\\.?link_error\\(\\)'" $exec_output ] } {
         pass $testname
     } {
         fail $testname
     }
+
+    run_cc_link_tests [list \
+	[list \
+	    "Build pr23460*.o" \
+	    "$plug_opt" \
+	    "-O2 -fPIC -flto $lto_no_fat" \
+	    {pr23460a.c pr23460b.c pr23460c.c \
+	     pr23460d.c pr23460e.c pr23460f.c} \
+	] \
+    ]
+    set exec_output [run_host_cmd "sh" \
+				  "-c \"ulimit -n 16; \
+				   $ar -rc $plug_opt \
+				   tmpdir/libpr23460.a \
+				   tmpdir/pr23460a.o \
+				   tmpdir/pr23460b.o \
+				   tmpdir/pr23460c.o \
+				   tmpdir/pr23460d.o \
+				   tmpdir/pr23460e.o \
+				   tmpdir/pr23460f.o\""]
+    set exec_output [prune_warnings $exec_output]
+    if [string match "" $exec_output] then {
+	pass "PR binutils/23460"
+    } else {
+	fail "PR binutils/23460"
+    }
 }
 
 # Run "ld -r" to generate inputs for complex LTO tests.
@@ -340,15 +602,131 @@ remote_exec host "mv" "tmpdir/dump tmpdir/lto-5.o"
 
 run_cc_link_tests $lto_link_symbol_tests
 
-# The following tests require running the executable generated by ld.
-if ![isnative] {
-    return
-}
+run_ld_link_tests [list \
+  [list "PR ld/19317 (2)" \
+   "-r tmpdir/pr19317.o" "" "" \
+   {dummy.s} {} "pr19317-r.o"] \
+]
 
-run_ld_link_exec_tests [] $lto_run_tests
+run_ld_link_exec_tests $lto_run_tests
 
 if { [is_elf_format] } {
-    run_ld_link_exec_tests [] $lto_run_elf_tests
+    run_ld_link_exec_tests $lto_run_elf_tests
+
+    # Note - it is not guaranteed that the ordering of symbols in the dynamic
+    # symbol table will match the ordering of the symbols specified by the
+    # --dynamic-list command line option.
+    #
+    # For PR22983 we want to make sure that all four symbols specified in
+    # pr222983.t are present in the output, but a simple sequences of regexps
+    # will not work as we do not know the order of the symbols.  (Readelf
+    # does not have a symbol sorting option and the run_cc_list_tests proc
+    # does not allow for the output of the dump program to piped into `sort`).
+    #
+    # So instead we run readelf four times, each time checking for the
+    # presence of a specific symbol from the pr22983.t file.
+    run_cc_link_tests [list \
+	[list \
+	    "Build pr22983" \
+	    "-Wl,--dynamic-list,pr22983.t" \
+	    "-flto" \
+	     {pr22983a.c pr22983b.c} \
+	    {{readelf {--dyn-syms --wide} pr22983.1.d} \
+	     {readelf {--dyn-syms --wide} pr22983.2.d} \
+	     {readelf {--dyn-syms --wide} pr22983.3.d} \
+	     {readelf {--dyn-syms --wide} pr22983.4.d}} \
+	    "pr22983" \
+	] \
+    ]
+}
+
+if { [is_elf_format] && [check_lto_shared_available] } {
+    run_ld_link_exec_tests $lto_run_elf_shared_tests
+}
+
+proc pr20103 {cflags libs} {
+    global CC
+
+    set testname "PR ld/20103 ($cflags $libs)"
+    set exec_output [run_host_cmd "$CC" "$cflags $libs"]
+    if { [ regexp "undefined reference to `\\.?dead'" $exec_output ] } {
+        pass "$testname (1)"
+    } {
+        fail "$testname (1)"
+    }
+    if { [ regexp "plugin needed to handle lto object" $exec_output ] } {
+        fail "$testname (2)"
+    } {
+        pass "$testname (2)"
+    }
+}
+
+if { [check_lto_fat_available] } {
+    run_cc_link_tests [list \
+	[list \
+	    "Build fatpr20103a.a" \
+	    "$plug_opt" "-flto -ffat-lto-objects" \
+	    {pr20103a.c} {} "fatpr20103a.a"
+	] \
+	[list \
+	    "Build fatpr20103b.a" \
+	    "$plug_opt" "-flto -ffat-lto-objects" \
+	    {pr20103b.c} {} "fatpr20103b.a"
+	] \
+	[list \
+	    "Build fatpr20103c.a" \
+	    "$plug_opt" "-flto -ffat-lto-objects" \
+	    {pr20103c.c} {} "fatpr20103c.a" \
+	] \
+	[list \
+	    "Build thinpr20103a.a" \
+	    "$plug_opt" "-flto -fno-fat-lto-objects" \
+	    {pr20103a.c} {} "thinpr20103a.a"
+	] \
+	[list \
+	    "Build thinpr20103b.a" \
+	    "$plug_opt" "-flto -fno-fat-lto-objects" \
+	    {pr20103b.c} {} "thinpr20103b.a"
+	] \
+	[list \
+	    "Build thinpr20103c.a" \
+	    "$plug_opt" "-flto -fno-fat-lto-objects" \
+	    {pr20103c.c} {} "thinpr20103c.a" \
+	] \
+	[list \
+	    "Build pr20103a" \
+	    "-O2 -flto -Wl,--start-group tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a -Wl,--end-group" \
+	    "-O2 -flto" \
+	    {dummy.c} {} "pr20103a" \
+	] \
+	[list \
+	    "Build pr20103b" \
+	    "-O2 -flto -Wl,--start-group tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a -Wl,--end-group" \
+	    "-O2 -flto" \
+	    {dummy.c} {} "pr20103b" \
+	] \
+	[list \
+	    "Build pr20103c" \
+	    "-O2 -Wl,--start-group tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a -Wl,--end-group" \
+	    "-O2" \
+	    {dummy.c} {} "pr20103c" \
+	] \
+    ]
+    pr20103 "-O2 -flto" "tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a"
+    pr20103 "-O2 -flto" "tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a"
+    pr20103 "-O2" "tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a"
+
+    if { [at_least_gcc_version 4 9] } {
+	run_cc_link_tests [list \
+	    [list \
+		"Build pr20103d" \
+		"-O2 -Wl,--start-group tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a -Wl,--end-group" \
+		"-O2" \
+		{dummy.c} {} "pr20103d" \
+	    ] \
+	]
+	pr20103 "-O2" "tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a"
+    }
 }
 
 restore_notify