MIPS/BFD: Make section GC work with `ict_irix5' targets

Prevent runtime procedure table symbols, produced with `ict_irix5' MIPS
targets, from being swept in section GC, fixing linker errors like:

./ld-new: tmpdir/dump: protected symbol `_procedure_table_size' isn't defined
./ld-new: final link failed: bad value

triggered whenever section GC is enabled with those targets and
consequently removing the following test suite failures:

FAIL: Build pr22649-2a.so
FAIL: Build pr22649-2c.so
FAIL: PR ld/20828 dynamic symbols with section GC (auxiliary shared library)
FAIL: PR ld/20828 dynamic symbols with section GC (plain)
FAIL: PR ld/20828 dynamic symbols with section GC (version script)
FAIL: PR ld/20828 dynamic symbols with section GC (versioned shared library)
FAIL: PR ld/20828 dynamic symbols with section GC (versioned)
FAIL: --gc-sections with .text._init
FAIL: pr20022

observed with `mips-elf', `tx39-elf', `mipsisa32-elf', `mipsisa64-elf',
`mipsel-elf', `mipsisa32el-elf', `mipsisa64el-elf', `mips64vr-elf',
`mips64vrel-elf', `mips64vr4300-elf', `mips64vr4300el-elf',
`mips-sgi-irix5' and `mips-rtems' targets, among others.  This fix makes
section GC usable with the affected targets.

	bfd/
	* elfxx-mips.c (_bfd_mips_elf_create_dynamic_sections): Set
	`mark' for symbols created from `mips_elf_dynsym_rtproc_names'
	list.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index c53d14de0331b9a4872fec1ccea0434f4fbf748d..bfe2aa293c3aa09dc5096e862a6d6987809ce5ab 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,9 @@
+2018-07-02  Maciej W. Rozycki  <macro@mips.com>
+
+       * elfxx-mips.c (_bfd_mips_elf_create_dynamic_sections): Set
+       `mark' for symbols created from `mips_elf_dynsym_rtproc_names'
+       list.
+
 2018-07-02  Maciej W. Rozycki  <macro@mips.com>
 
        * elf64-mips.c (micromips_elf64_howto_table_rel): Add

diff --git a/bfd/elfxx-mips.c b/bfd/elfxx-mips.c
index 82ab417dded9ec1a262c242342c3ece17bf90359..c33b276ceff665518937c60dfcc1fd836954f34a 100644 (file)
--- a/bfd/elfxx-mips.c
+++ b/bfd/elfxx-mips.c
@@ -7844,6 +7844,7 @@ _bfd_mips_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
            return FALSE;
 
          h = (struct elf_link_hash_entry *) bh;
+         h->mark = 1;
          h->non_elf = 0;
          h->def_regular = 1;
          h->type = STT_SECTION;