Commit Graph

11218 Commits

Author SHA1 Message Date
Alan Modra 67ad4d71d6 daily update 2014-07-10 09:31:24 +09:30
Alan Modra ecf3e831f7 daily update 2014-07-09 09:31:22 +09:30
Nick Clifton 5bc8cb6f84 This fixes PR 17110 which shows that the SH section relocation code can be called
for input BFDs as well as output BFDs.

	PR ld/17110
	* elf32-sh.c (sh_elf_osec_to_segment): Do not look for output
	segments in input bfds.
2014-07-08 16:20:48 +01:00
Will Newton 7572ca8989 ld/ARM: Increase maximum page size to 64kB
Increase the maximum page size to 64kB and align the TEXT_START_ADDR
to a 64kB boundary. This brings AArch32 in line with AArch64 and
improves compatability under certain conditions.

bfd/ChangeLog:

2014-07-08  Will Newton  <will.newton@linaro.org>

	* elf32-arm.c (ELF_MAXPAGESIZE): Increase the default
	value to 64kB and remove custom setting for NaCl.

ld/ChangeLog:

2014-07-08  Will Newton  <will.newton@linaro.org>

	* emulparams/armelf_linux.sh (TEXT_START_ADDR): Increase
	alignment to 64kB boundary.

ld/testsuite/ChangeLog:

2014-07-08  Will Newton  <will.newton@linaro.org>

	* ld-arm/arm-lib.ld: Increase MAXPAGESIZE value to
	match bfd.
	* ld-arm/cortex-a8-fix-bl-rel-plt.d: Update offsets to
	take into account increased segment alignment.
	* ld-arm/ifunc-gdesc.r: Likewise.
	* ld-arm/tls-lib.d: Likewise.
2014-07-08 15:00:12 +01:00
Alan Modra bffebb6ba5 Copy st_other for linker script symbol assignments
This fixes a problem seen on powerpc64le ELFv2 when creating a
function symbol alias with ld --defsym.  st_other needs to be copied
from the source symbol to the alias in order to set up the local entry
offset for the alias.  I decided to make this change in the generic
ELF code rather than in elf64-ppc.c since it looks like other targets
that use st_other bits might benefit too.

bfd/
	* elflink.c (_bfd_elf_copy_link_hash_symbol_type): Copy st_other
	bits from source to dest.
	* linker.c (_bfd_generic_copy_link_hash_symbol_type): Update comment.
	* targets.c (struct bfd_target <_bfd_copy_link_hash_symbol_type>):
	Likewise.
	* bfd-in2.h: Regenerate.
ld/testsuite/
	* ld-powerpc/defsym.s, * ld-powerpc/defsym.d: New test.
	* ld-powerpc/powerpc.exp: Run it.
2014-07-08 19:42:03 +09:30
Jiong Wang 2e0488d33f Enable elf_backend_rela_normal for AArch64
If we are generating non-relocatable object and --emit-relocs specified,
  aarch64 ld is actually generating wrong addend for rela entry when
  relocate against local symbol.

  for example, for simple testcase

  foo.c
  ===

  const char * const a = "foo";

  const char *
  foo ()
  {
    return a;
  }

  bar.c
  ===

  const char * const b = "bar";

  const char * bar ()
  {
    return b;
  }

  aarch64-none-linux-gnu-ld --emit-relocs -o x.o  foo.o bar.o
  aarch64-none-linux-gnu-readelf -r x.o

   ... R_AARCH64_ADR_PRE 0000000000400018 .rodata + 0
   ... R_AARCH64_ADD_ABS 0000000000400018 .rodata + 0
   ... R_AARCH64_ADR_PRE 0000000000400018 .rodata + 0
   ... R_AARCH64_ADD_ABS 0000000000400018 .rodata + 0

   while it should be:

   ... R_AARCH64_ADR_PRE 0000000000400018 .rodata + 0
   ... R_AARCH64_ADD_ABS 0000000000400018 .rodata + 0
   ... R_AARCH64_ADR_PRE 0000000000400018 .rodata + 10
   ... R_AARCH64_ADD_ABS 0000000000400018 .rodata + 10

   bfd generic code could actually handle this properly, but only when
   elf_backend_rela_normal set to '1'.

   this patch enable this and remove those target specific hack.

    bfd/
      * elfnn-aarch64.c (elf_backend_rela_normal): Set to 1.
      (elfNN_aarch64_relocate_section): Remove duplicated addend adjustment
      when info->relocatable be true.

    ld/testsuite/
      * ld-aarch64/emit-relocs-local-addend-bar.s: * New source file.
      * ld-aarch64/emit-relocs-local-addend-foo.s: * Likewise.
      * ld-aarch64/emit-relocs-local-addend.d: * New testcase.
      * ld-aarch64/local-addend-r.d: Likewise.
2014-07-08 09:29:06 +01:00
Alan Modra e29c73ebde daily update 2014-07-08 09:30:45 +09:30
Barney Stratford 75f580857a Adds support for writing values to AVR system I/O registers.
* elf32-avr.c: Handle R_AVR_PORT5 and R_AVR_PORT6.
	* reloc.c: Add BFD_RELOC_AVR_PORT5 and BFD_RELOC_AVR_PORT6.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.

	* avr.h: Add R_AVR_PORT5 and R_AVR_PORT6.

	* config/tc-avr.c (avr_operand): Permit referring to r26-r31 by
	name as [xyz][hl].  Permit using a symbol whoes name begins with
	`r' to refer to a register.
	Allow arbitrary expressions for the P and p operators.
	(md_apply_fix): Check the BFD_RELOC_AVR_PORT5 and
	BFD_RELOC_AVR_PORT6 relocations.
2014-07-07 16:15:19 +01:00
Alan Modra f60ec1cfa8 daily update 2014-07-07 09:30:39 +09:30
Alan Modra e9021bb48f daily update 2014-07-06 09:30:56 +09:30
Alan Modra 878f7dc7d1 daily update 2014-07-05 09:31:46 +09:30
Alan Modra 1110793abe Update "configure.in" in comments and doco
bfd/
	* Makefile.am: Update "configure.in" comments.
	* PORTING: Likewise.
	* aoutx.h: Likewise.
	* configure.host: Likewise.
	* doc/bfdint.texi: Likewise.
	* targets.c: Likewise.
	* warning.m4: Likewise.
	* Makefile.in: Regenerate.
gas/
	* doc/internals.texi: Update "configure.in" comments.
	* acinclude.m4: Likewise.
	* config/tc-sparc.c: Likewise.
ld/
	* configure.ac: Update "configure.in" comments.
	* configure: Regenerate.
2014-07-04 15:06:40 +09:30
Alan Modra 35eafcc71b Rename configure.in to configure.ac
bfd/
	* configure.ac: Rename from configure.in.
	* Makefile.in: Regenerate.
	* config.in: Regenerate.
	* doc/Makefile.in: Regenerate.
opcodes/
	* configure.ac: Rename from configure.in.
	* Makefile.in: Regenerate.
	* config.in: Regenerate.
binutils/
	* configure.ac: Rename from configure.in.
	* Makefile.in: Regenerate.
	* config.in: Regenerate.
	* doc/Makefile.in: Regenerate.
gas/
	* configure.ac: Rename from configure.in.
	* Makefile.in: Regenerate.
	* config.in: Regenerate.
	* doc/Makefile.in: Regenerate.
gprof/
	* configure.ac: Rename from configure.in.
	* configure.ac: Rename from configure.in.
	* Makefile.in: Regenerate.
	* gconfig.in: Regenerate.
ld/
	* configure.ac: Rename from configure.in.
	* Makefile.in: Regenerate.
	* config.in: Regenerate.
2014-07-04 13:40:28 +09:30
Alan Modra 82b57a900f Remove some more bfd/configure.in dependencies
Missed from 2e98a7bd

bfd/
	* Makefile.am (CONFIG_STATUS_DEPENDENCIES): Remove configure.in.
	* Makefile.in: Regenerate.
gas/
	* doc/Makefile.am (CONFIG_STATUS_DEPENDENCIES): Delete.
	* doc/Makefile.in: Regenerate.
2014-07-04 13:25:49 +09:30
Alan Modra 2e98a7bd88 Use modern AC_INIT in configure.in
This removes usage of the obsolete AC_INIT and AM_INIT_AUTOMAKE in all
binutils configure.in files.  The BFD version is now in bfd/version.m4
rather than bfd/configure.in, which allows automake to automatically
track this dependency.

bfd/
	* version.m4: New file.
	* configure.in: Include version.m4.
	(AC_INIT): Update.
	* Makefile.am (RELEASE): Delete.
	(bfdver.h): Depend on development.sh, use instead of RELEASE.
	* Makefile.in: Regenerate.
	* doc/Makefile.in: Regenerate.
opcodes/
	* configure.in: Include bfd/version.m4.
	(AC_INIT, AM_INIT_AUTOMAKE): Use modern form.
	(BFD_VERSION): Delete.
	* Makefile.am (CONFIG_STATUS_DEPENDENCIES): Remove bfd/configure.in.
	* configure: Regenerate.
	* Makefile.in: Regenerate.
binutils/
	* configure.in: Include bfd/version.m4.
	(AC_INIT, AM_INIT_AUTOMAKE): Use modern form.
	(BFD_VERSION): Delete.
	* Makefile.am (CONFIG_STATUS_DEPENDENCIES): Remove bfd/configure.in.
	* configure: Regenerate.
	* Makefile.in: Regenerate.
	* doc/Makefile.in: Regenerate.
gas/
	* configure.in: Include bfd/version.m4.
	(AC_INIT, AM_INIT_AUTOMAKE): Use modern form.
	(BFD_VERSION): Delete.
	* configure.com: Get bfd version from bfd/version.m4.
	* Makefile.am (CONFIG_STATUS_DEPENDENCIES): Remove bfd/configure.in.
	* configure: Regenerate.
	* Makefile.in: Regenerate.
	* doc/Makefile.in: Regenerate.
gprof/
	* configure.in: Include bfd/version.m4.
	(AC_INIT, AM_INIT_AUTOMAKE): Use modern form.
	(BFD_VERSION): Delete.
	* Makefile.am (CONFIG_STATUS_DEPENDENCIES): Remove bfd/configure.in.
	* configure: Regenerate.
	* Makefile.in: Regenerate.
ld/
	* configure.in: Include bfd/version.m4.
	(AC_INIT, AM_INIT_AUTOMAKE): Use modern form.
	(BFD_VERSION): Delete.
	* Makefile.am (CONFIG_STATUS_DEPENDENCIES): Remove bfd/configure.in.
	* configure: Regenerate.
	* Makefile.in: Regenerate.
2014-07-04 12:41:26 +09:30
Alan Modra 1455e8c2e5 daily update 2014-07-04 09:31:17 +09:30
Alan Modra fd48cee009 daily update 2014-07-03 09:31:38 +09:30
Alan Modra d1eca1e41d Taking an undefined function's address in an executable
doesn't always mean you need to define a function symbol on plt code.
If all references are in read-write sections, then using dynamic relocs
is OK.

bfd/
	* elf32-ppc.c (ppc_elf_adjust_dynamic_symbol): Clear
	pointer_equality_needed when !readonly_dynrelocs.
	* elf64-ppc.c (ppc64_elf_adjust_dynamic_symbol): Likewise.
ld/testsuite/
	* ld-powerpc/ambiguousv1.d: Match symbol table too.
	* ld-powerpc/ambiguousv2.d: Likewise.
	* ld-powerpc/ambiguousv1b.d: New.
	* ld-powerpc/ambiguousv2b.d: New.
	* ld-powerpc/powerpc.exp: Run new tests.
2014-07-02 18:16:14 +09:30
Alan Modra afb933145e Set DF_STATIC_TLS for PIEs
If we can dlopen an object then DF_STATIC_TLS is relevant.

	* elf32-ppc.c (ppc_elf_check_relocs): Set DF_STATIC_TLS for PIEs too.
	* elf64-ppc.c (ppc64_elf_check_relocs): Likewise.
2014-07-02 14:04:21 +09:30
Alan Modra 53a8cffa62 daily update 2014-07-02 09:31:18 +09:30
Alan Modra b6a1c03a95 Reorganise struct bfd
for better packing.  Removes a field and a flag that are never set.

bfd/
	* bfd.c (struct bfd): Reorganise for better packing.  Delete
	"ifd" field.  Make "format", "direction" and "flags" bitfields.
	(HAS_LOAD_PAGE): Delete, renumber following flags.
	* bfd-in2.h: Regenerate.
	* coff-tic4x.c: Remove HAS_LOAD_PAGE from extra flags in target vecs.
binutils/
	* objdump.c (dump_bfd_header): Don't print HAS_LOAD_PAGE.
2014-07-01 20:43:14 +09:30
Alan Modra 7341d5e22f Add symbols for global entry stub, and report stats
The undefined function symbols (with non-zero value) on global entry
stubs are discarded by objdump when disassembling, so give objdump
another symbol to mark the stubs.

Also fixes a couple of bugs:
- entry_section was set to .opd for ELFv2, which meant a hard error
  rather than a warning when _start wasn't defined.
- global entry stubs were not built if they were the only type of
  stub in an executable.

bfd/
	* elf64-ppc.c (ppc_stub_type): Add ppc_stub_global_entry.
	(struct ppc_link_hash_table): Increase size of stub_count array.
	(build_global_entry_stubs): Emit symbol on global entry stub.
	(ppc64_elf_build_stubs): NULL check htab->brlt.  Add global entry
	stub stats.
ld/
	* emultempl/ppc64elf.em (stub_added): Delete.
	(gld${EMULATION_NAME}_finish): Call ppc64_elf_build_stubs even when
	none of the usual stubs have been added.  Only change entry_section
	for ELFv1.
2014-07-01 20:28:20 +09:30
Alan Modra 810d4e754d Linker foreign output format support for PowerPC64 ELFv2
Makes the ld srec tests pass.  Uses a horrible scan through symbols to
find ELF fields for symbol definitions, but the generic linker doesn't
offer anything better.  Might be slow.  Anyway, sane people will link
to ELF output then objcopy to convert formats.

	* elf64-ppc.c (abiversion, set_abiversion): Move earlier.
	(ppc64_elf_branch_reloc): Adjust addend for ELFv2 local offset.
	(ppc64_elf_set_toc): Set ".TOC." symbol value when using
	generic linker.
	(ppc64_elf_relocate_section): Disable ELFv2 function entry
	optimisation when --traditional-format.
2014-07-01 20:24:25 +09:30
Barney Stratford f36e88862f Add support for the AVR Tiny series of microcontrollers.
* archures.c: add avrtiny architecture for avr target.
	* bfd-in2.h: Regenerate.
	* cpu-avr.c (arch_info_struct): add avrtiny arch info.
	* elf32-avr.c (elf_avr_howto_table): new relocation R_AVR_LDS_STS_16
	added for 16 bit LDS/STS instruction of avrtiny arch.
	(avr_reloc_map): reloc R_AVR_LDS_STS_16 is mapped to
	BFD_RELOC_AVR_LDS_STS_16.
	(bfd_elf_avr_final_write_processing): select machine number avrtiny arch.
	(elf32_avr_object_p): set machine number for avrtiny arch.
	* libbfd.h: Regenerate.
	* reloc.c: Add documentation for BFD_RELOC_AVR_LDS_STS_16 reloc.

         * config/tc-avr.c (mcu_types): Add avrtiny arch.
	Add avrtiny arch devices attiny4, attiny5, attiny9, attiny10, attiny20
	and attiny40.
	(md_show_usage): Add avrtiny arch in usage message.
	(avr_operand): validate and issue error for invalid register for avrtiny.
	add new reloc exp for 16 bit lds/sts instruction.
	(md_apply_fix): check 16 bit lds/sts operand for out of range and encode.
	(md_assemble): check ISA for arch and issue diagnostic.

	* include/elf/avr.h (E_AVR_MACH_AVRTINY): define avrtiny machine number.
	(R_AVR_LDS_STS_16): define 16 bit lds/sts reloc number.
	* include/opcode/avr.h (AVR_ISA_TINY): define avrtiny specific ISA.
	(AVR_ISA_2xxxa): define ISA without LPM.
	(AVR_ISA_AVRTINY): define avrtiny arch ISA.
	Add doc for contraint used in 16 bit lds/sts.
	Adjust ISA group for icall, ijmp, pop and push.
	Add 16 bit lds/sts encoding and update 32 bit lds/sts constraints.
	* opcodes/avr-dis.c (avr_operand): Handle constraint j for 16 bit lds/sts.
	(print_insn_avr): do not select opcode if insn ISA is avrtiny and machine
	is not avrtiny.

	* Makefile.am (ALL_EMULATION_SOURCES): add avrtiny emulation source.
	(eavrtiny.c): add rules for avrtiny emulation source.
	* Makefile.in: Regenerate.
	* configure.tgt: Add avrtiny to avr target emulations.
	* scripttempl/avrtiny.sc: New file.
	linker script template for avrtiny arch.
	* emulparams/avrtiny.sh: New file.
	emulation parameters for avrtiny arch.
2014-07-01 10:20:17 +01:00
Alan Modra 9ef5ddf51c daily update 2014-07-01 09:30:39 +09:30
Alan Modra 3f201179cc daily update 2014-06-30 10:12:59 +09:30
Alan Modra 727d6f7cb0 daily update 2014-06-28 09:30:39 +09:30
Alan Modra e2ca13570c daily update 2014-06-27 09:30:38 +09:30
Nick Clifton 60d77146a2 Fixes a problem displaying the contents of a binary containing corrupt debug
information, specifically a DW_AT_MIPS_linkage_name attribute that has a numeric
value rather than a string value.

	PR binutils/16949
	* dwarf2.c (is_str_attr): New function.
	(find_abstract_instance_name): Use it to determine when an
	attribute has a string value.
2014-06-26 09:12:55 +01:00
Alan Modra cbac4466d7 daily update 2014-06-26 09:30:37 +09:30
Alan Modra 31f0c4c1c6 daily update 2014-06-25 09:30:37 +09:30
Alan Modra 15bfcc7768 Don't strip section defining _SDA_BASE_
Prior to 93d1b056 _SDA_BASE_ used to be defined in a linker script
output section.  Now _SDA_BASE_ is defined in an input section that is
subject to being stripped.  If the section is stripped we don't output
the symbol, which results in --emit-relocs trying to emit relocs with
dangling references to _SDA_BASE_.

	* elf32-ppc.c (ppc_elf_size_dynamic_sections): Arrange to keep
	.sdata/.sdata2 when _SDA_BASE_/_SDA2_BASE_ should be output
	for --emit-relocs.
2014-06-24 13:39:04 +09:30
Alan Modra 03e46fbd35 daily update 2014-06-24 09:31:18 +09:30
Alan Modra 6bd23fd2c7 daily update 2014-06-23 09:30:34 +09:30
Alan Modra d17c74c1d4 daily update 2014-06-22 09:30:37 +09:30
Alan Modra aed4ab287a daily update 2014-06-21 09:30:43 +09:30
Philippe De Muyter 886aba9eff Fix fallout from 6d00b590
* targets.c (_bfd_target_vector): Add missing #ifdef BFD64 for
	a number of targets.
2014-06-21 09:22:12 +09:30
Kyle McMartin eea6dad2b3 Similarly to the AArch64 patch, set DF_STATIC_TLS for consistency with
other architectures when we emit IE relocs in a shared library.

	* elf32-arm.c (elf32_arm_check_relocs): Set DF_STATIC_TLS when
	emitting initial-exec relocs when not linking an executable.
2014-06-20 11:14:09 +01:00
Alan Modra db988f621f daily update 2014-06-20 09:30:42 +09:30
Alan Modra da58fb67f2 daily update 2014-06-19 09:31:16 +09:30
Alan Modra fc68cc33b1 daily update 2014-06-18 09:53:09 +09:30
Alan Modra dfac1fa730 daily update 2014-06-17 09:31:07 +09:30
Will Newton 9f19ab6dfa ld/ARM: Fix IFUNC and TLS descriptors in the same shared object
Combining TLS descriptors and GNU indirect functions in the same
object could lead to assertions or multiple dynamic relocations
for the same GOT slot. Fix the bookkeeping so this doesn't happen.

This allows building and make checking glibc with -mtls-dialect=gnu2.

bfd/ChangeLog:

2014-06-16  Will Newton  <will.newton@linaro.org>

	* elf32-arm.c (elf32_arm_allocate_plt_entry): Increment
	htab->next_tls_desc_index in the non-IPLT case.
	Calculate GOT offset correctly for the non-IPLT case.
	(allocate_dynrelocs_for_symbol): Don't increment
	htab->next_tls_desc_index here.

ld/testsuite/ChangeLog:

2014-06-16  Will Newton  <will.newton@linaro.org>

	* ld-arm/arm-elf.exp: Add ifunc-gdesc test.
	* ld-arm/ifunc-gdesc.r: New file.
	* ld-arm/ifunc-gdesc.s: Likewise.
	* ld-arm/ifunc-gdesc.ver: Likewise.
2014-06-16 15:51:21 +01:00
Alan Modra eb9a5ecfac Fix uninitialised VAX .got and .got.plt section
Cures these failures with MALLOC_PERTURB_=1
FAIL: GOT test (executable)
FAIL: GOT test (shared library)
FAIL: VAX export class call relocation test
FAIL: VAX export class data relocation test

	* elf32-vax.c (elf_vax_size_dynamic_sections): Clear linker
	created sections.
2014-06-16 12:28:23 +09:30
Alan Modra cc0c4d535e daily update 2014-06-16 09:30:38 +09:30
Alan Modra 2de2a6d098 daily update 2014-06-15 09:31:08 +09:30
Alan Modra 05629c769a daily update 2014-06-14 09:31:18 +09:30
Omair Javaid d0ae9fbda7 Add support for reading Aarch64 core dumps.
* elfxx-aarch64.c (stdarg.h): Include.
	(string.h): Include.
	(_bfd_aarch64_elf_grok_prstatus): Updated.
	(_bfd_aarch64_elf_grok_psinfo): New function.
	(_bfd_aarch64_elf_write_core_note): New function.
	* elfxx-aarch64.h (elf_backend_grok_psinfo): Define.
	(elf_backend_write_core_note): Define.
2014-06-13 17:07:21 +01:00
Alan Modra d495ab0d84 Free linker hash table from bfd_close.
Also tidies numerous error exit paths in various link_hash_table_create
functions that failed to free memory.

include/
	* bfdlink.h (struct bfd_link_hash_table): Add hash_table_free field.
bfd/
	* archive.c: Include bfdlink.h.
	(_bfd_archive_close_and_cleanup): Call linker hash_table_free.
	* bfd.c (struct bfd): Add is_linker_output field.
	* elf-bfd.h (_bfd_elf_link_hash_table_free): Update prototype.
	* linker.c (_bfd_link_hash_table_init): Set up hash_table_free,
	link.hash and is_linker_output.
	(_bfd_generic_link_hash_table_free): Replace bfd_link_hash_table*
	param with bfd*.  Assert is_linker_output and link.hash, and
	clear them before exit.
	* elf-m10300.c (elf32_mn10300_link_hash_table_free): Replace
	bfd_link_hash_table* param with bfd*.  Hack is_linker_output
	and link.hash so we can free two linker hash tables.
	(elf32_mn10300_link_hash_table_create): Create static_hash_table
	first.  Clean up on errors.  Set hash_table_free pointer.
	* elf32-arm.c (elf32_arm_link_hash_table_free): Replace
	bfd_link_hash_table* param with bfd*.
	(elf32_arm_link_hash_table_create): Clean up on errors.  Set
	hash_table_free pointer.
	* elf32-avr.c, * elf32-hppa.c, * elf32-i386.c, * elf32-m68hc1x.c,
	* elf32-m68k.c, * elf32-metag.c, * elf32-nios2.c, * elf32-xgate.c,
	* elf64-ia64-vms.c, * elf64-ppc.c, * elf64-x86-64.c, * elflink.c,
	* elfnn-aarch64.c, * elfnn-ia64.c, * elfxx-sparc.c,
	* xcofflink.c: Similarly.
	* simple.c (bfd_simple_get_relocated_section_contents): Save and
	clear link.next before creating linker hash table.  Clean up on
	errors, and restore link.next on exit.
	* elf32-m68hc1x.h (m68hc11_elf_bfd_link_hash_table_free): Delete.
	* elf32-xgate.h (xgate_elf_bfd_link_hash_table_free): Delete.
	* elfxx-sparc.h (_bfd_sparc_elf_link_hash_table_free): Delete.
	* libcoff-in.h (_bfd_xcoff_bfd_link_hash_table_free): Delete.
	* hash.c (bfd_hash_table_init_n): Free table on error.
	* libbfd-in.h (_bfd_generic_link_hash_table_free): Update proto.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.
	* libcoff.h: Regenerate.
2014-06-13 19:11:39 +09:30
Alan Modra caa4096e84 Don't call bfd_link_hash_table_free
Freeing the linker hash table is a royal pain.  It can't be freed
before the _bfd_write_contents call in bfd_close, because some target
bfd_write_contents functions access the hash table.  It can't be freed
after bfd_close either, since bfd_alloc memory holding side data
structures disappears (PR17047).  Clearly the only place it can be freed
is actually in bfd_close.  This patch doesn't do that, but kills off
the existing means of freeing the hash table via a bfd target xvec call.

bfd/
	PR 17047
	* targets.c (BFD_JUMP_TABLE): Delete NAME##_bfd_link_hash_table_free.
	(struct bfd_target <_bfd_link_hash_table_free>): Delete.
	* bfd.c (bfd_link_hash_table_free): Don't define.
	* aout-adobe.c, * aout-target.h, * aout-tic30.c, * binary.c, * bout.c,
	* coff64-rs6000.c, * coffcode.h, * elf-m10300.c, * elf32-arm.c,
	* elf32-avr.c, * elf32-hppa.c, * elf32-i386.c, * elf32-m68hc11.c,
	* elf32-m68hc12.c, * elf32-m68k.c, * elf32-metag.c, * elf32-nios2.c,
	* elf32-sparc.c, * elf32-xgate.c, * elf64-ia64-vms.c, * elf64-ppc.c,
	* elf64-sparc.c, * elf64-x86-64.c, * elfnn-aarch64.c, * elfnn-ia64.c,
	* elfxx-target.h, * i386msdos.c, * i386os9k.c, * ieee.c, * ihex.c,
	* libbfd-in.h, * libecoff.h, * mach-o-target.c, * mmo.c,
	* nlm-target.h, * oasys.c, * pef.c, * plugin.c, * ppcboot.c, * som.c,
	* srec.c, * tekhex.c, * verilog.c, * versados.c, * vms-alpha.c,
	* xsym.c: Don't define various link_hash_table_free defines, and
	remove from bfd_target vars.  Temporarily reference some of the
	target link_hash_table_free functions to avoid warnings.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.
ld/
	PR 17047
	* ldlang.c (output_bfd_hash_table_free_fn): Delete.
	(open_output): Don't set it..
	* ldmain.c (ld_cleanup): ..or call it.
2014-06-13 19:11:29 +09:30