Fixes for "Ignore dynamic references on forced local symbols"
authorAlan Modra <amodra@gmail.com>
Fri, 12 Jan 2018 06:28:04 +0000 (16:58 +1030)
committerAlan Modra <amodra@gmail.com>
Fri, 12 Jan 2018 10:43:11 +0000 (21:13 +1030)
PowerPC64 has its own mark_dynamic_ref, which needs the same change as
made by d664fd41e1 to the generic ELF version.  Some other targets
discard more than just .data, so allow for that too in expected ld
messages.

bfd/
PR ld/22649
* elf64-ppc.c (ppc64_elf_gc_mark_dynamic_ref): Ignore dynamic
references on forced local symbols.
ld/
PR ld/22649
* testsuite/ld-elf/pr22649.msg: Allow other messages.
* testsuite/ld-elf/shared.exp: Check that --gc-sections is
supported before running ld/22649 tests.

bfd/ChangeLog
bfd/elf64-ppc.c
ld/ChangeLog
ld/testsuite/ld-elf/pr22649.msg
ld/testsuite/ld-elf/shared.exp

index a31693e..85ea86a 100644 (file)
@@ -1,3 +1,9 @@
+2018-01-12  Alan Modra  <amodra@gmail.com>
+
+       PR ld/22649
+       * elf64-ppc.c (ppc64_elf_gc_mark_dynamic_ref): Ignore dynamic
+       references on forced local symbols.
+
 2018-01-12  Vlad Ivanov  <vlad@ivanov.email>
 
        * elfxx-mips.c (_bfd_mips_elf_final_link): Notify user when
index c548fef..d4016b9 100644 (file)
@@ -6447,7 +6447,7 @@ ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf)
 
   if ((eh->elf.root.type == bfd_link_hash_defined
        || eh->elf.root.type == bfd_link_hash_defweak)
-      && (eh->elf.ref_dynamic
+      && ((eh->elf.ref_dynamic && !eh->elf.forced_local)
          || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf))
              && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL
              && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN
index a2c13c8..39f79fe 100644 (file)
@@ -1,3 +1,10 @@
+2018-01-12  Alan Modra  <amodra@gmail.com>
+
+       PR ld/22649
+       * testsuite/ld-elf/pr22649.msg: Allow other messages.
+       * testsuite/ld-elf/shared.exp: Check that --gc-sections is
+       supported before running ld/22649 tests.
+
 2018-01-12  Nick Clifton  <nickc@redhat.com>
 
        * emultempl/elf32.em (_handle_option): Add support for "-z undefs"
index b4e45bd..66b5f25 100644 (file)
@@ -1 +1,3 @@
+#...
 .*: Removing unused section '\.data' in file 'tmpdir/pr22649-2.*\.o'
+#pass
index 1247fd2..5c4d78a 100644 (file)
@@ -90,44 +90,49 @@ run_ld_link_tests [list \
        {} \
        "pr22649-1.so" \
     ] \
-    [list \
-       "Build pr22649-2a.so" \
-       "$LFLAGS -shared -gc-sections -print-gc-sections" \
-       "" \
-       "$AFLAGS_PIC" \
-       {pr22649-2a.s} \
-       {{ld pr22649.msg}} \
-       "pr22649-2a.so" \
-    ] \
-    [list \
-       "Build pr22649-2b.so" \
-       "$LFLAGS -shared -gc-sections -print-gc-sections" \
-       "tmpdir/pr22649-1.so" \
-       "$AFLAGS_PIC" \
-       {pr22649-2a.s} \
-       {{ld pr22649.msg}} \
-       "pr22649-2b.so" \
-    ] \
-    [list \
-       "Build pr22649-2c.so" \
-       "$LFLAGS -shared -gc-sections -print-gc-sections" \
-       "" \
-       "$AFLAGS_PIC" \
-       {pr22649-2b.s} \
-       {} \
-       "pr22649-2b.so" \
-    ] \
-    [list \
-       "Build pr22649-2d.so" \
-       "$LFLAGS -shared -gc-sections -print-gc-sections" \
-       "tmpdir/pr22649-1.so" \
-       "$AFLAGS_PIC" \
-       {pr22649-2b.s} \
-       {} \
-       "pr22649-2b.so" \
-    ] \
 ]
 
+if { [check_gc_sections_available] } {
+    run_ld_link_tests [list \
+       [list \
+           "Build pr22649-2a.so" \
+           "$LFLAGS -shared -gc-sections -print-gc-sections" \
+           "" \
+           "$AFLAGS_PIC" \
+           {pr22649-2a.s} \
+           {{ld pr22649.msg}} \
+           "pr22649-2a.so" \
+       ] \
+       [list \
+           "Build pr22649-2b.so" \
+           "$LFLAGS -shared -gc-sections -print-gc-sections" \
+           "tmpdir/pr22649-1.so" \
+           "$AFLAGS_PIC" \
+           {pr22649-2a.s} \
+           {{ld pr22649.msg}} \
+           "pr22649-2b.so" \
+       ] \
+       [list \
+           "Build pr22649-2c.so" \
+           "$LFLAGS -shared -gc-sections -print-gc-sections" \
+           "" \
+           "$AFLAGS_PIC" \
+           {pr22649-2b.s} \
+           {} \
+           "pr22649-2b.so" \
+       ] \
+       [list \
+           "Build pr22649-2d.so" \
+           "$LFLAGS -shared -gc-sections -print-gc-sections" \
+           "tmpdir/pr22649-1.so" \
+           "$AFLAGS_PIC" \
+           {pr22649-2b.s} \
+           {} \
+           "pr22649-2b.so" \
+       ] \
+    ]
+}
+
 run_ld_link_tests [list \
     [list \
        "DT_TEXTREL in shared lib" \