Commit Graph

150 Commits

Author SHA1 Message Date
Alan Modra
6ecfe4abfd PR28166, _bfd_elf_mips_get_relocated_section_contents
Some of the code paths unpacking mips relocs left arelent->sym_ptr_ptr
uninitialised.

	PR 28166
	* elf64-mips.c (mips_elf64_slurp_one_reloc_table): Don't leave
	sym_ptr_ptr uninitialised.
2021-08-05 20:47:09 +09:30
Alan Modra
0613c3306c PR28162, segment fault in mips_elf_assign_gp
For the testcase in the PR, _bfd_mips_elf32_gprel16_reloc is passed a
NULL output_bfd.  As expected for reloc special functions if called by
objdump or when final linking.  The function attempts to find the
output by
  output_bfd = symbol->section->output_section->owner;
That makes some sense, since when handling a gp-relative reloc we need
the relevant gp to which the symbol is relative.  Possibly the gp
value can be one for a shared library?  But that doesn't seem useful
or supported by the various abi docs and won't work as written.
Symbols defined in shared libraries have section->output_section
NULL, and what's more the code in mips_elf_assign_gp isn't set up to
look at shared library symbols.

Also, if the symbol is a SHN_ABS one the owner of *ABS* section is
NULL, which will result in the testcase segfault.  The only gp to
which an absolute symbol can be relative is the linker output bfd when
linking, or the input bfd when not.  This patch arranges to do that
for all gp-relative reloc symbols.

	* elf32-mips.c (_bfd_mips_elf32_gprel16_reloc): Don't use the
	section symbol to find the output bfd, use input_section.
	(mips_elf_gprel32_reloc, mips16_gprel_reloc): Likewise.
	* elf64-mips.c (mips_elf64_gprel16_reloc): Likewise.
	(mips_elf64_literal_reloc, mips_elf64_gprel32_reloc): Likewise.
	(mips16_gprel_reloc): Likewise.
2021-08-04 23:28:44 +09:30
Alan Modra
0a1b45a20e Use bool in bfd
* sysdep.h: POISON_BFD_BOOLEAN: Define.
	* aix5ppc-core.c, * aout-cris.c, * aout-ns32k.c, * aout-target.h,
	* aoutx.h, * arc-got.h, * archive.c, * archive64.c, * archures.c,
	* bfd-in.h, * bfd.c, * bfdwin.c, * binary.c, * cache.c,
	* coff-alpha.c, * coff-arm.c, * coff-arm.h, * coff-bfd.c,
	* coff-bfd.h, * coff-go32.c, * coff-i386.c, * coff-ia64.c,
	* coff-mcore.c, * coff-mips.c, * coff-rs6000.c, * coff-sh.c,
	* coff-stgo32.c, * coff-tic30.c, * coff-tic4x.c, * coff-tic54x.c,
	* coff-x86_64.c, * coff-z80.c, * coff-z8k.c, * coff64-rs6000.c,
	* coffcode.h, * coffgen.c, * cofflink.c, * compress.c,
	* corefile.c, * cpu-aarch64.c, * cpu-aarch64.h, * cpu-alpha.c,
	* cpu-arc.c, * cpu-arm.c, * cpu-arm.h, * cpu-avr.c, * cpu-bfin.c,
	* cpu-bpf.c, * cpu-cr16.c, * cpu-cris.c, * cpu-crx.c,
	* cpu-csky.c, * cpu-d10v.c, * cpu-d30v.c, * cpu-dlx.c,
	* cpu-epiphany.c, * cpu-fr30.c, * cpu-frv.c, * cpu-ft32.c,
	* cpu-h8300.c, * cpu-hppa.c, * cpu-i386.c, * cpu-ia64.c,
	* cpu-iamcu.c, * cpu-ip2k.c, * cpu-iq2000.c, * cpu-k1om.c,
	* cpu-l1om.c, * cpu-lm32.c, * cpu-m10200.c, * cpu-m10300.c,
	* cpu-m32c.c, * cpu-m32r.c, * cpu-m68hc11.c, * cpu-m68hc12.c,
	* cpu-m68k.c, * cpu-m9s12x.c, * cpu-m9s12xg.c, * cpu-mcore.c,
	* cpu-mep.c, * cpu-metag.c, * cpu-microblaze.c, * cpu-mips.c,
	* cpu-mmix.c, * cpu-moxie.c, * cpu-msp430.c, * cpu-mt.c,
	* cpu-nds32.c, * cpu-nfp.c, * cpu-nios2.c, * cpu-ns32k.c,
	* cpu-or1k.c, * cpu-pdp11.c, * cpu-pj.c, * cpu-powerpc.c,
	* cpu-pru.c, * cpu-riscv.c, * cpu-rl78.c, * cpu-rs6000.c,
	* cpu-rx.c, * cpu-s12z.c, * cpu-s390.c, * cpu-score.c,
	* cpu-sh.c, * cpu-sparc.c, * cpu-spu.c, * cpu-tic30.c,
	* cpu-tic4x.c, * cpu-tic54x.c, * cpu-tic6x.c, * cpu-tilegx.c,
	* cpu-tilepro.c, * cpu-v850.c, * cpu-v850_rh850.c, * cpu-vax.c,
	* cpu-visium.c, * cpu-wasm32.c, * cpu-xc16x.c, * cpu-xgate.c,
	* cpu-xstormy16.c, * cpu-xtensa.c, * cpu-z80.c, * cpu-z8k.c,
	* dwarf1.c, * dwarf2.c, * ecoff-bfd.h, * ecoff.c, * ecofflink.c,
	* elf-attrs.c, * elf-bfd.h, * elf-eh-frame.c, * elf-hppa.h,
	* elf-ifunc.c, * elf-m10200.c, * elf-m10300.c, * elf-nacl.c,
	* elf-nacl.h, * elf-properties.c, * elf-s390-common.c,
	* elf-s390.h, * elf-strtab.c, * elf-vxworks.c, * elf-vxworks.h,
	* elf.c, * elf32-am33lin.c, * elf32-arc.c, * elf32-arm.c,
	* elf32-arm.h, * elf32-avr.c, * elf32-avr.h, * elf32-bfin.c,
	* elf32-bfin.h, * elf32-cr16.c, * elf32-cr16.h, * elf32-cris.c,
	* elf32-crx.c, * elf32-csky.c, * elf32-csky.h, * elf32-d10v.c,
	* elf32-d30v.c, * elf32-dlx.c, * elf32-epiphany.c,
	* elf32-fr30.c, * elf32-frv.c, * elf32-ft32.c, * elf32-gen.c,
	* elf32-h8300.c, * elf32-hppa.c, * elf32-hppa.h, * elf32-i386.c,
	* elf32-ip2k.c, * elf32-iq2000.c, * elf32-lm32.c, * elf32-m32c.c,
	* elf32-m32r.c, * elf32-m68hc11.c, * elf32-m68hc12.c,
	* elf32-m68hc1x.c, * elf32-m68hc1x.h, * elf32-m68k.c,
	* elf32-m68k.h, * elf32-mcore.c, * elf32-mep.c, * elf32-metag.c,
	* elf32-metag.h, * elf32-microblaze.c, * elf32-mips.c,
	* elf32-moxie.c, * elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c,
	* elf32-nios2.c, * elf32-nios2.h, * elf32-or1k.c, * elf32-pj.c,
	* elf32-ppc.c, * elf32-ppc.h, * elf32-pru.c, * elf32-rl78.c,
	* elf32-rx.c, * elf32-s12z.c, * elf32-s390.c, * elf32-score.c,
	* elf32-score.h, * elf32-score7.c, * elf32-sh-relocs.h,
	* elf32-sh.c, * elf32-sparc.c, * elf32-spu.c, * elf32-spu.h,
	* elf32-tic6x.c, * elf32-tic6x.h, * elf32-tilegx.c,
	* elf32-tilepro.c, * elf32-v850.c, * elf32-v850.h,
	* elf32-vax.c, * elf32-visium.c, * elf32-wasm32.c,
	* elf32-xc16x.c, * elf32-xgate.c, * elf32-xstormy16.c,
	* elf32-xtensa.c, * elf32-z80.c, * elf64-alpha.c, * elf64-bpf.c,
	* elf64-gen.c, * elf64-hppa.c, * elf64-ia64-vms.c,
	* elf64-mips.c, * elf64-mmix.c, * elf64-nfp.c, * elf64-ppc.c,
	* elf64-ppc.h, * elf64-s390.c, * elf64-sparc.c,
	* elf64-tilegx.c, * elf64-x86-64.c, * elfcode.h,
	* elfcore.h, * elflink.c, * elfn32-mips.c, * elfnn-aarch64.c,
	* elfnn-ia64.c, * elfnn-riscv.c, * elfxx-aarch64.c,
	* elfxx-aarch64.h, * elfxx-ia64.c, * elfxx-ia64.h,
	* elfxx-mips.c, * elfxx-mips.h, * elfxx-riscv.c, * elfxx-riscv.h,
	* elfxx-sparc.c, * elfxx-sparc.h, * elfxx-target.h,
	* elfxx-tilegx.c, * elfxx-tilegx.h, * elfxx-x86.c, * elfxx-x86.h,
	* format.c, * genlink.h, * hash.c, * i386aout.c, * i386lynx.c,
	* i386msdos.c, * ihex.c, * libaout.h, * libbfd-in.h,
	* libbfd.c, * libcoff-in.h, * libecoff.h, * libpei.h,
	* libxcoff.h, * linker.c, * mach-o-aarch64.c, * mach-o-arm.c,
	* mach-o-i386.c, * mach-o-x86-64.c, * mach-o.c, * mach-o.h,
	* merge.c, * mmo.c, * netbsd.h, * opncls.c, * pc532-mach.c,
	* pdp11.c, * pe-arm.c, * pe-i386.c, * pe-mcore.c, * pe-sh.c,
	* pe-x86_64.c, * peXXigen.c, * pef.c, * pei-arm.c, * pei-i386.c,
	* pei-ia64.c, * pei-mcore.c, * pei-sh.c, * pei-x86_64.c,
	* peicode.h, * plugin.c, * plugin.h, * ppcboot.c, * reloc.c,
	* reloc16.c, * rs6000-core.c, * section.c, * simple.c, * som.c,
	* som.h, * srec.c, * stabs.c, * syms.c, * targets.c, * tekhex.c,
	* verilog.c, * vms-alpha.c, * vms-lib.c, * vms-misc.c, * vms.h,
	* wasm-module.c, * xcofflink.c, * xcofflink.h, * xsym.c,
	* xsym.h: Replace bfd_boolean with bool, FALSE with false, and
	TRUE with true throughout.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.
	* libcoff.h: Regenerate.
2021-03-31 10:49:23 +10:30
Alan Modra
250d07de5c Update year range in copyright notice of binutils files 2021-01-01 10:31:05 +10:30
Alan Modra
c95949892f Replace "if (x) free (x)" with "free (x)", bfd
* aoutx.h: Replace "if (x) free (x)" with "free (x)" throughout.
	* archive.c, * bfd.c, * bfdio.c, * coff-alpha.c, * coff-ppc.c,
	* coff-sh.c, * coff-stgo32.c, * coffcode.h, * coffgen.c,
	* cofflink.c, * cpu-arm.c, * doc/chew.c, * dwarf2.c, * ecoff.c,
	* ecofflink.c, * elf-eh-frame.c, * elf-m10200.c, * elf-m10300.c,
	* elf-strtab.c, * elf.c, * elf32-arc.c, * elf32-arm.c,
	* elf32-avr.c, * elf32-bfin.c, * elf32-cr16.c, * elf32-crx.c,
	* elf32-epiphany.c, * elf32-ft32.c, * elf32-h8300.c,
	* elf32-ip2k.c, * elf32-m32c.c, * elf32-m68hc11.c,
	* elf32-m68k.c, * elf32-microblaze.c, * elf32-msp430.c,
	* elf32-nds32.c, * elf32-nios2.c, * elf32-ppc.c, * elf32-pru.c,
	* elf32-rl78.c, * elf32-rx.c, * elf32-sh.c, * elf32-spu.c,
	* elf32-v850.c, * elf32-xtensa.c, * elf64-alpha.c,
	* elf64-hppa.c, * elf64-ia64-vms.c, * elf64-mips.c
	* elf64-mmix.c, * elf64-ppc.c, * elf64-sparc.c, * elfcode.h,
	* elflink.c, * elfnn-ia64.c, * elfnn-riscv.c, * elfxx-mips.c,
	* elfxx-x86.c, * format.c, * ihex.c, * libbfd.c, * linker.c,
	* mmo.c, * opncls.c, * pdp11.c, * peXXigen.c, * pef.c,
	* peicode.h, * simple.c, * som.c, * srec.c, * stabs.c, * syms.c,
	* targets.c, * vms-lib.c, * xcofflink.c, * xtensa-isa.c: Likewise.
2020-05-21 10:11:57 +09:30
Alan Modra
2bb3687ba8 _bfd_alloc_and_read
This patch provides two new inline functions that are then used in
places that allocate memory, read from file, and then deallocate on a
read failure.

	* libbfd-in.h (_bfd_alloc_and_read, _bfd_malloc_and_read): New.
	* aoutx.h (aout_get_external_symbols): Replace calls to
	bfd_[m]alloc and bfd_bread with call to _bfd_[m]alloc_and_read.
	(slurp_reloc_table): Likewise.
	* archive.c (do_slurp_bsd_armap): Likewise.
	(do_slurp_coff_armap): Likewise.
	* archive64.c (_bfd_archive_64_bit_slurp_armap): Likewise.
	* coff-rs6000.c (_bfd_xcoff_slurp_armap): Likewise.
	* coff64-rs6000.c (xcoff64_slurp_armap): Likewise.
	* coffcode.h (coff_set_arch_mach_hook, buy_and_read): Likewise.
	* coffgen.c (coff_real_object_p, coff_object_p, build_debug_section),
	(_bfd_coff_get_external_symbols): Likewise.
	* ecoff.c (ecoff_slurp_symbolic_header),
	(_bfd_ecoff_slurp_symbolic_info, ecoff_slurp_reloc_table),
	(_bfd_ecoff_slurp_armap, ecoff_link_add_object_symbols, READ),
	(ecoff_indirect_link_order): Likewise.
	* elf.c (bfd_elf_get_str_section, setup_group, elf_read_notes),
	(_bfd_elf_slurp_version_tables): Likewise.
	* elf32-m32c.c (m32c_elf_relax_section): Likewise.
	* elf32-rl78.c (rl78_elf_relax_section): Likewise.
	* elf32-rx.c (elf32_rx_relax_section): Likewise.
	* elf64-alpha.c (READ): Likewise.
	* elf64-mips.c (mips_elf64_slurp_one_reloc_table): Likewise.
	* elf64-sparc.c (elf64_sparc_slurp_one_reloc_table): Likewise.
	* elfcode.h (elf_slurp_symbol_table),
	(elf_slurp_reloc_table_from_section): Likewise.
	* elflink.c (elf_link_add_object_symbols),
	(elf_link_check_versioned_symbol): Likewise.
	* elfxx-mips.c (READ): Likewise.
	* i386lynx.c (slurp_reloc_table): Likewise.
	* lynx-core.c (lynx_core_file_p): Likewise.
	* mach-o.c (bfd_mach_o_canonicalize_relocs),
	(bfd_mach_o_read_symtab_strtab, bfd_mach_o_alloc_and_read),
	(bfd_mach_o_read_prebound_dylib, bfd_mach_o_read_dyld_content
	* pdp11.c (aout_get_external_symbols, slurp_reloc_table
	* pef.c (bfd_pef_print_loader_section, bfd_pef_scan_start_address),
	(bfd_pef_parse_symbols): Likewise.
	* peicode.h (pe_ILF_object_p, pe_bfd_object_p
	* som.c (setup_sections, som_slurp_string_table),
	(som_slurp_reloc_table, som_bfd_count_ar_symbols),
	(som_bfd_fill_in_ar_symbols): Likewise.
	* vms-alpha.c (module_find_nearest_line, evax_bfd_print_dst),
	(evax_bfd_print_image): Likewise.
	* vms-lib.c (_bfd_vms_lib_archive_p): Likewise.
	* wasm-module.c (wasm_scan): Likewise.
	* xcofflink.c (xcoff_link_add_symbols): Likewise.
	* xsym.c (bfd_sym_read_name_table),
	(bfd_sym_print_type_information_table_entry): Likewise.
	* libbfd.h: Regenerate.
2020-02-19 14:00:55 +10:30
Alan Modra
b3adc24a07 Update year range in copyright notice of binutils files 2020-01-01 18:42:54 +10:30
Alan Modra
827041555a Update year range in copyright notice of binutils files 2019-01-01 22:06:53 +10:30
Maciej W. Rozycki
47275900ad PR ld/21375: MIPS: Fix non-zero run-time value for undefined weaks
We have an issue in the MIPS backend, with the handling of undefined
hidden and internal weak symbols.  References to such symbols are
supposed to resolve to 0 according to the ELF gABI[1]:

"Unresolved weak symbols have a zero value."

and the 64-bit MIPS psABI[2]:

"If a symbol with one of these [hidden or internal] attributes has no
definition within the executable/DSO being linked, then it must be
resolved to allocated space if common, resolved to zero if weak, or an
error reported otherwise."

however if a GOT relocation is used, then a local GOT entry is created
and used to satisfy the reference.  Such an entry is then (in DSO and
PIE binaries) subject to the usual load-time relocation, which means a
non-zero value will be returned if the base address is non-zero.  This
will defeat the usual run-time sequence like:

void a (void) __attribute__ ((visibility ("hidden"), weak));

void
x (void)
{
  if (a)
    a ();
}

This can be reproduced with this simple code:

$ cat libtest.c
extern int a __attribute__ ((visibility ("hidden"), weak));

int *
x (void)
{
  return &a;
}
$ cat test.c

int *x (void);

int
main (void)
{
  printf ("a: %p\n", x ());

  return 0;
}
$ gcc -shared -fPIC -o libtest.so libtest.c
$ gcc -o test test.c -Wl,-rpath,$(pwd) libtest.so
$ ./test
a: 0x77184000
$

The usual approach targets take is making all the steps required to
assign a GOT entry for the symbol referred, and then leave its contents
at zero with no dynamic relocation attached, therefore ensuring that the
value does not change at load time.  However this is not going to work
with the implicitly relocated GOT the MIPS psABI specifies[3]:

"The dynamic linker relocates the global offset table by first adding
the difference between the base where the shared object is loaded and
the value of the dynamic tag DT_MIPS_BASE_ADDRESS to all local global
offset table entries."

and we cannot therefore use the local GOT part.

And we cannot offhand use the global part either, as the symbol would
then have to be exported and possibly wrongly preempt symbols in other
modules involved in the dynamic load, because as per the ELF gABI[1] we
are not allowed to enter a hidden or internal symbol into the dynamic
symbol table (and then use its associated GOT entry):

"A hidden symbol contained in a relocatable object must be either
removed or converted to STB_LOCAL binding by the link-editor when the
relocatable object is included in an executable file or shared object."

and:

"An internal symbol contained in a relocatable object must be either
removed or converted to STB_LOCAL binding by the link-editor when the
relocatable object is included in an executable file or shared object."

So we have to choose something else.

Our choice is further limited by the need for the reference associated
with the GOT relocation to stay within the signed 16-bit limit from the
GOT pointer base register, while being compliant with the ELF gABI and
the MIPS psABI.  However as Alan Modra has observed[4] one possibility
is to edit (relax) the code such that the GOT reference is removed
altogether.

Based on these observations then modify MIPS BFD linker backend code to:

1. Interpret code associated with GOT relocations and relax the usual LW
   or LD instructions into a corresponding immediate load operation that
   places the value of 0 in the intended register, while leaving the GOT
   entry allocated and initialized as usually.

2. Leave any other instructions associated with GOT relocations in place
   and instead redirect the reference to a global GOT entry associated
   with a special `__gnu_absolute_zero' symbol created for this purpose,
   whose value is 0, SHN_ABS section marks it absolute, binding is
   global and export class protected, ensuring that the locally provided
   value is always used at load time, and that the value is not
   relocated by the dynamic loader.

3. Adjust any high-part GOT relocation used, typically associated with
   a LUI instruction, accordingly, so that run-time consistency is
   maintained, either by resolving to the original entry if the
   instruction associated with the corresponding low-part GOT relocation
   has been relaxed to an immediate load (in which case the value loaded
   with LUI will be overwritten), or by also redirecting the reference
   to `__gnu_absolute_zero' to complete the GOT access sequence if that
   symbol has been used.

4. Add a target `elf_backend_hide_symbol' hook, for the three MIPS ABIs,
   which prevents the `__gnu_absolute_zero' symbol from being forced
   local, to ensure that the redirection works and the symbol remains
   global/protected with existing linker scripts unchanged.

5. Observing the issue with handling SHN_ABS symbols in the GNU dynamic
   loader, covered by glibc PR 19818, set the EI_ABIVERSION field in the
   ELF file header produced to 4 (ABI_ABSOLUTE) if `__gnu_absolute_zero'
   symbol has been produced and the target configured indicates the GNU
   operating system, so that broken versions of the GNU dynamic loader
   gracefully reject the file in loading rather than going astray.  Keep
   EI_ABIVERSION at the original value for other operating systems or if
   no `__gnu_absolute_zero' symbol has been made.

The name of the special `__gnu_absolute_zero' has no meaning other than
how a human reader can interpret it, as it is ignored in dynamic loading
in the handling of the scenarios concerned.  This is because the symbol
resolves locally, and it's only the symbol's attributes that matter so
that the associated GOT entry remains unchanged at load time.

Therefore the name is somewhat arbitrary, observing however the need to
use the name space reserved for the system so that it does not conflict
with a possible user symbol, and hence the leading underscore, and also
the `gnu' infix to denote a GNU feature.  Other implementations wishing
to address the problem in a similar way may choose a different name and
have the solution still work, possibly with a mixture of modules used in
a dynamic having symbols of different names provided, which will however
not interact with each other due to the protected export class.

The symbol can be referred explicitly, however the name is an internal
implementation detail rather than a part of the ABI, and therefore no
specific semantics is guaranteed.

One limitation of this change is that if `__gnu_absolute_zero' has been
already defined, then we do not wipe the old definition and all kinds of
odd behavior can result.  This is however like with other symbols we
internally define, such as `_GLOBAL_OFFSET_TABLE_' or `__rld_map', and
therefore left as a possible future enhancement.

As an optimization the relaxation of LW and LD instructions to a load of
immediate zero is always made, even SVR4 PIC code for code that will end
up in a regular (non-PIE) executable, because there is a cache advantage
with the avoidance of a load from the GOT, even if it is otherwise
guaranteed to remain zero.  It does not reliably happen though, due to a
symbol exportation issue affecting executables, covered by PR ld/21805.

One existing test case needs to be updated, as it triggers relaxation
introduced with this change and consequently linker output does not
match expectations anymore.  As we want to keep the original issue
covered with the test case modify it then to use the LWL instruction in
place of LW, and adjust the output expected accordingly.

References:

[1] "System V Application Binary Interface - DRAFT - 19 October 2010",
    The SCO Group, Section "Symbol Table",
    <http://www.sco.com/developers/gabi/2012-12-31/ch4.symtab.html>

[2] "64-bit ELF Object File Specification, Draft Version 2.5", MIPS
    Technologies / Silicon Graphics Computer Systems, Order Number
    007-4658-001, Section 2.5 "Symbol Table", p. 22,
    <http://techpubs.sgi.com/library/manuals/4000/007-4658-001/pdf/007-4658-001.pdf>

[3] "SYSTEM V APPLICATION BINARY INTERFACE, MIPS RISC Processor
    Supplement, 3rd Edition", Section "Global Offset Table", p. 5-10,
    <http://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf>

[4] "Undo dynamic symbol state after regular object sym type mismatch",
    <https://sourceware.org/ml/binutils/2017-07/msg00265.html>

	bfd/
	PR ld/21375
	* elfxx-mips.h (_bfd_mips_elf_hide_symbol): New prototype.
	(_bfd_mips_elf_linker_flags): Update prototype.
	* elf32-mips.c (elf_backend_hide_symbol): New macro.
	* elf64-mips.c (elf_backend_hide_symbol): Likewise.
	* elfn32-mips.c (elf_backend_hide_symbol): Likewise.
	* elfxx-mips.c (mips_elf_link_hash_table): Add
	`use_absolute_zero' and `gnu_target' members.
	(mips_elf_record_global_got_symbol): Call
	`_bfd_mips_elf_hide_symbol' rather than
	`_bfd_elf_link_hash_hide_symbol'.
	(mips_use_local_got_p): Return FALSE if the symbol is absolute.
	(mips_elf_obtain_contents): Reorder function.
	(mips_elf_nullify_got_load): New function.
	(mips_elf_calculate_relocation): Add `contents' parameter.
	Nullify GOT loads or if it is not possible, then redirect GOT
	relocations to the `__gnu_absolute_zero' symbol, for references
	that are supposed to resolve to zero.
	(mips_elf_define_absolute_zero): New function.
	(_bfd_mips_elf_check_relocs): Prepare for arrangements made in
	`mips_elf_calculate_relocation' for references made via the GOT
	that are supposed to resolve to zero.
	(_bfd_mips_elf_hide_symbol): New function.
	(_bfd_mips_elf_linker_flags): Add the `gnu_target' parameter,
	set the `gnu_target' member of the MIPS hash table.
	(MIPS_LIBC_ABI_ABSOLUTE): New enumeration constant.
	(_bfd_mips_post_process_headers): Use it.

	ld/
	PR ld/21375
	* emultempl/mipself.em: Set `gnu_target' according to ${target}.
	(mips_create_output_section_statements): Update call to
	`_bfd_mips_elf_linker_flags'.
	* testsuite/ld-mips-elf/pr21334.s: Use LWL rather than LW.
	* testsuite/ld-mips-elf/pr21334.dd: Update accordingly.
2018-09-14 20:22:56 +01:00
Maciej W. Rozycki
156f2c001e microMIPS/BFD: Add missing NewABI TLS and miscellaneous relocations
Complement commit df58fc944d ("MIPS: microMIPS ASE support"),
<https://sourceware.org/ml/binutils/2011-07/msg00198.html>, and add TLS
and a few miscellaneous relocations to NewABI microMIPS support, fixing
GAS assertion failures:

.../gas/testsuite/gas/mips/elf-rel28.s: Assembler messages:
.../gas/testsuite/gas/mips/elf-rel28.s:19: Internal error in append_insn at .../gas/config/tc-mips.c:7660.
Please report this bug.

observed if an attempt is made to assemble the `elf-rel28.s' test case
to microMIPS code.  The relocations are the same as with o32 support,
except for `partial_inplace' and `src_mask' updates for the respective
RELA variants.

	bfd/
	* elf64-mips.c (micromips_elf64_howto_table_rel): Add
	R_MICROMIPS_HI0_LO16, R_MICROMIPS_TLS_GD, R_MICROMIPS_TLS_LDM,
	R_MICROMIPS_TLS_DTPREL_HI16, R_MICROMIPS_TLS_DTPREL_LO16,
	R_MICROMIPS_TLS_GOTTPREL, R_MICROMIPS_TLS_TPREL_HI16,
	R_MICROMIPS_TLS_TPREL_LO16, R_MICROMIPS_GPREL7_S2 and
	R_MICROMIPS_PC23_S2 relocation entries.
	(micromips_elf64_howto_table_rela): Likewise.
	(micromips_reloc_map): Likewise.
	* elfn32-mips.c (elf_micromips_howto_table_rel): Likewise.
	(elf_micromips_howto_table_rela): Likewise.
	(micromips_reloc_map): Likewise.

	gas/
	* testsuite/gas/mips/elf-rel28-micromips-n32.d: New test.
	* testsuite/gas/mips/elf-rel28-micromips-n64.d: New test.
	* testsuite/gas/mips/mips.exp: Run the new tests.
2018-07-02 23:57:22 +01:00
Maciej W. Rozycki
aec2e0d252 MIPS64/BFD: Fix a crash with STN_UNDEF in relocation
Prevent a null BFD pointer dereference and a resulting segmentation
fault in `mips_elf64_write_rel' or `mips_elf64_write_rela':

Program received signal SIGSEGV, Segmentation fault.
0x0000000000437690 in mips_elf64_write_rela (abfd=0x71e130, sec=0x720700,
    rela_hdr=0x721ff8, count=0x7fffffffb82c, data=0x7fffffffb88c)
    at .../bfd/elf64-mips.c:4123
4123	      if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec
4124		  && ! _bfd_elf_validate_reloc (abfd, ptr))

in the MIPS64 (n64 MIPS) ELF backend whenever the STN_UNDEF symbol index
is retrieved from the `r_sym' field of a relocation seen in input while
running `objcopy' or `strip'.  The reason for the null BFD pointer is
that internally in BFD an STN_UNDEF symbol reference resolves to an
absolute zero symbol that does not have a BFD associated.  Check the
pointer then before using it, like the generic ELF backend does in
`elf_write_relocs'.

This complements the same change made for generic ELF bundled with:

commit e35765a9a2
Author: Ian Lance Taylor <ian@airs.com>
Date:   Sun Dec 15 19:59:18 1996 +0000

which (obviously due to a CVS -> GIT repository conversion inaccuracy)
seems to be one corresponding to this ChangeLog entry:

	* elfcode.h (write_relocs): Handle absolute symbol.

from:

commit c86158e591
Author: Ian Lance Taylor <ian@airs.com>
Date:   Fri Aug 30 22:09:51 1996 +0000

("Add SH ELF support."), which also updated RELA only and not REL (which
has been since fixed with: commit 947216bf8f ("ELF reloc code tidy"),
<https://sourceware.org/ml/binutils/2002-11/msg00727.html>).

	bfd/
	* elf64-mips.c (mips_elf64_write_rel): Handle a NULL BFD pointer
	in the BFD symbol referred by the relocation.
	(mips_elf64_write_rela): Likewise.
2018-04-09 13:42:00 +01:00
Maciej W. Rozycki
9ccfa98b4c MIPS64/BFD: Fix a crash with invalid `r_sym' in relocation
Prevent an out-of-range access and a possible segmentation fault in
`mips_elf64_slurp_one_reloc_table':

Program received signal SIGSEGV, Segmentation fault.
mips_elf64_slurp_one_reloc_table (abfd=0x71bd90, asect=0x71cf70,
    rel_hdr=<value optimized out>, reloc_count=1,
    relents=<value optimized out>, symbols=0x7218c0, dynamic=0)
    at .../bfd/elf64-mips.c:3758
3757			      ps = symbols + rela.r_sym - 1;
3758			      s = *ps;

in the MIPS64 (n64 MIPS) ELF backend whenever an invalid symbol index is
retrieved from the `r_sym' field of a relocation seen in input while
running `objcopy' or `strip'.  Issue an error instead, like the generic
ELF backend does, taking code from `elf_slurp_reloc_table_from_section',
except for relocation types that do not refer to a symbol.

This complements commit 1f70368c21 ("Stop objdump crash on corrupt
reloc table"), <https://sourceware.org/ml/binutils/2002-09/msg00332.html>,
and commit 05a487dc8c ("make check fails on i686-linux-gnu"),
<https://sourceware.org/ml/binutils/2002-09/msg00340.html>, where the
generic ELF backend code comes from.

	bfd/
	* elf64-mips.c (mips_elf64_slurp_one_reloc_table): Issue an
	error for out-of-range `r_sym' values.
2018-04-09 13:42:00 +01:00
Maciej W. Rozycki
7ed6f92aaf PR binutils/22875: MIPS/ELF: Also fail with relocation placeholders
Do not consider placeholder EMPTY_HOWTO relocation entries valid in
`rtype_to_howto' MIPS handlers.  Instead issue an unsupported relocation
type error and return a NULL howto as with relocations outside the three
ISA-specific min-max ranges.

	bfd/
	* elf32-mips.c (mips_elf32_rtype_to_howto): Also return
	unsuccessfully for placeholder howtos.
	* elf64-mips.c (mips_elf64_rtype_to_howto): Likewise.
	* elfn32-mips.c (mips_elf_n32_rtype_to_howto): Likewise.
2018-04-04 02:00:48 +01:00
Alan Modra
0118219e18 mips64 rtype_to_howto error status
* elf64-mips.c (mips_elf64_rtype_to_howto): Return NULL on error.
	(mips_elf64_slurp_one_reloc_table): Pass on error.
2018-03-07 16:56:31 +10:30
Nick Clifton
f3185997ac Have info_to_howto functions return a success/fail status. Check this result. Stop strip from completeing if one of these functions fails.
bfd	PR 22875
	* elf-bfd.h (struct elf_backend_data): Change the return type of
	the elf_info_to_howto and elf_info_to_howto_rel function pointers
	to bfd_boolean.
	* elfcode.h (elf_slurp_reloc_table_from_section): Check the return value from the info_to_howto function and fail if that function failed.
	* elf32-h8300.c (elf32_h8_relocate_section): Check return value from the info_to_howto function.
	(elf32_h8_relax_section): Likewise.
	* elf32-lm32.c (lm32_elf_relocate_section): Likewise.
	* elf32-m68hc1x.c (elf32_m68hc11_relocate_section): Likewise.
	* elf32-score.c (s3_bfd_score_elf_relocate_section): Likewise.
	* elf32-score7.c (s7_bfd_score_elf_relocate_section): Likewise.
	* elf32-tic6x.c (elf32_tic6x_relocate_section): Likewise.
	* elf64-ia64-vms.c (elf64_ia64_relocate_section): Likewise.
	* elf64-sparc.c (elf64_sparc_slurp_one_reloc_table): Likewise.
	* elf64-x86-64.c (elf_x86_64_tls_transition): Likewise.
	* elfnn-ia64.c (elfNN_ia64_relocate_section): Likewise.
	* elfnn-riscv.c (riscv_elf_check_relocs): Likewise.
	(riscv_elf_relocate_section): Likewise.
	* elf-hppa.h (elf_hppa_info_to_howto): Change return type to
	bfd_boolean.  Issue an error message, set an error value and
	return FALSE if the reloc is not recognized.
	(elf_hppa_info_to_howto_rel): Likewise.
	* elf-m10200.c (mn10200_info_to_howto): Likewise.
	* elf-m10300.c (mn10300_info_to_howto): Likewise.
	* elf.c (_bfd_elf_no_info_to_howto): Likewise.
	* elf32-arc.c (arc_info_to_howto_rel): Likewise.
	* elf32-arm.c (elf32_arm_info_to_howto): Likewise.
	* elf32-avr.c (avr_info_to_howto_rela): Likewise.
	* elf32-bfin.c (bfin_info_to_howto): Likewise.
	* elf32-cr16.c (elf_cr16_info_to_howto): Likewise.
	* elf32-cr16c.c (elf_cr16c_info_to_howto): Likewise.
	* elf32-cris.c (elf_cr16c_info_to_howto_rel, cris_info_to_howto_rela): Likewise.
	* elf32-crx.c (elf_crx_info_to_howto): Likewise.
	* elf32-d10v.c (d10v_info_to_howto_rel): Likewise.
	* elf32-d30v.c (d30v_info_to_howto_rel, d30v_info_to_howto_rela): Likewise.
	* elf32-dlx.c (dlx_rtype_to_howto, elf32_dlx_info_to_howto, elf32_dlx_info_to_howto_rel): Likewise.
	* elf32-epiphany.c (epiphany_info_to_howto_rela): Likewise.
	* elf32-fr30.c (fr30_info_to_howto_rela): Likewise.
	* elf32-frv.c (frv_info_to_howto_rela, 	frvfdpic_info_to_howto_rel): Likewise.
	* elf32-ft32.c (ft32_info_to_howto_rela): Likewise.
	* elf32-gen.c (elf_generic_info_to_howto, elf_generic_info_to_howto_rel): Likewise.
	* elf32-h8300.c (elf32_h8_info_to_howto, elf32_h8_info_to_howto_rel): Likewise.
	* elf32-i370.c (i370_elf_info_to_howto): Likewise.
	* elf32-i386.c (elf_i386_reloc_type_lookup, elf_i386_rtype_to_howto, elf_i386_info_to_howto_rel): Likewise.
	* elf32-i860.c (lookup_howto, elf32_i860_info_to_howto_rela): Likewise.
	* elf32-i960.c (elf32_i960_info_to_howto_rel): Likewise.
	* elf32-ip2k.c (ip2k_info_to_howto_rela): Likewise.
	* elf32-iq2000.c (iq2000_info_to_howto_rela): Likewise.
	* elf32-lm32.c (lm32_info_to_howto_rela): Likewise.
	* elf32-m32c.c (m32c_info_to_howto_rela): Likewise.
	* elf32-m32r.c (m32r_info_to_howto_rel, m32r_info_to_howto): Likewise.
	* elf32-m68hc11.c (m68hc11_info_to_howto_rel): Likewise.
	* elf32-m68hc12.c (m68hc11_info_to_howto_rel): Likewise.
	* elf32-m68k.c (rtype_to_howto): Likewise.
	* elf32-mcore.c (mcore_elf_info_to_howto): Likewise.
	* elf32-mep.c (mep_info_to_howto_rela): Likewise.
	* elf32-metag.c (metag_info_to_howto_rela): Likewise.
	* elf32-microblaze.c (microblaze_elf_info_to_howto): Likewise.
	* elf32-mips.c (mips_info_to_howto_rel, mips_info_to_howto_rela): Likewise.
	* elf32-moxie.c (moxie_info_to_howto_rela): Likewise.
	* elf32-msp430.c (msp430_info_to_howto_rela): Likewise.
	* elf32-mt.c (mt_info_to_howto_rela): Likewise.
	* elf32-nds32.c (nds32_info_to_howto_rel, nds32_info_to_howto): Likewise.
	* elf32-nios2.c (nios2_elf32_info_to_howto): Likewise.
	* elf32-or1k.c (or1k_info_to_howto_rela): Likewise.
	* elf32-pj.c (pj_elf_info_to_howto): Likewise.
	* elf32-ppc.c (ppc_elf_info_to_howto): Likewise.
	* elf32-pru.c (pru_elf32_info_to_howto): Likewise.
	* elf32-rl78.c (rl78_info_to_howto_rela): Likewise.
	* elf32-rx.c (rx_info_to_howto_rela): Likewise.
	* elf32-s390.c (elf_s390_info_to_howto): Likewise.
	* elf32-score.c (s3_bfd_score_info_to_howto, _bfd_score_info_to_howto): Likewise.
	* elf32-score7.c (s7_bfd_score_info_to_howto): Likewise.
	* elf32-sh.c (sh_elf_info_to_howto): Likewise.
	* elf32-spu.c (spu_elf_info_to_howto): Likewise.
	* elf32-tic6x.c (elf32_tic6x_info_to_howto, elf32_tic6x_info_to_howto_rel): Likewise.
	* elf32-tilepro.c (tilepro_info_to_howto_rela): Likewise.
	* elf32-v850.c (v850_elf_info_to_howto_rel, v850_elf_info_to_howto_rela, v800_elf_info_to_howto): Likewise.
	* elf32-vax.c (rtype_to_howto): Likewise.
	* elf32-visium.c (visium_info_to_howto_rela): Likewise.
	* elf32-wasm32.c (elf32_wasm32_rtype_to_howto, elf32_wasm32_info_to_howto_rela): Likewise.
	* elf32-xc16x.c (elf32_xc16x_info_to_howto): Likewise.
	* elf32-xgate.c (xgate_info_to_howto_rel): Likewise.
	* elf32-xstormy16.c (xstormy16_info_to_howto_rela): Likewise.
	* elf32-xtensa.c (elf_xtensa_info_to_howto_rela): Likewise.
	* elf64-alpha.c (elf64_alpha_info_to_howto): Likewise.
	* elf64-gen.c (elf_generic_info_to_howto, elf_generic_info_to_howto_rel): Likewise.
	* elf64-ia64-vms.c (elf64_ia64_info_to_howto): Likewise.
	* elf64-mips.c (mips_elf64_info_to_howto_rela): Likewise.
	* elf64-mmix.c (mmix_info_to_howto_rela): Likewise.
	* elf64-ppc.c (ppc64_elf_info_to_howto): Likewise.
	* elf64-s390.c (elf_s390_reloc_type_lookup): Likewise.
	* elf64-sh64.c (elf_s390_info_to_howto, sh_elf64_info_to_howto): Likewise.
	* elf64-x86-64.c (elf_x86_64_info_to_howto): Likewise.
	* elfn32-mips.c (mips_info_to_howto_rel, mips_info_to_howto_rela): Likewise.
	* elfnn-aarch64.c (elfNN_aarch64_info_to_howto): Likewise.
	* elfnn-ia64.c (elfNN_ia64_info_to_howto): Likewise.
	* elfnn-riscv.c (riscv_info_to_howto_rela): Likewise.
	* elfxx-ia64.c (ia64_elf_reloc_type_lookup): Likewise.
	* elfxx-sparc.c (_bfd_sparc_elf_info_to_howto): Likewise.
	* elfxx-tilegx.c (tilegx_info_to_howto_rela): Likewise.
	* elf32-score.h (s7_bfd_score_info_to_howto): Update prototype.
	* elfxx-sparc.h (_bfd_sparc_elf_info_to_howto): Update prototype.
	* elfxx-tilegx.h (tilegx_info_to_howto_rela): Update prototype.
	* elfxx-target.h (elf_info_to_howto, elf_info_to_howto_rel): Default to NULL.

binutils PR 22875
	* objcopy.c (copy_object): Check the error status after marking symbols used in relocations.
	* testsuite/binutils-all/strip-13.s: New test source file.
	* testsuite/binutils-all/strip-13.s: New test driver file.
	* testsuite/binutils-all/objcopy.exp: Run the new test.
2018-02-27 10:15:13 +00:00
Alan Modra
0aa13feeeb unrecognized/unsupported reloc message
It must get boring translating all the variants we have of
unrecognized/unsupported/invalid/unexpected reloc number.  This patch
cuts down on the number of variations.

	* aoutx.h, * coff-alpha.c, * coff-i860.c, * coff-m68k.c,
	* coff-mcore.c, * coff-ppc.c, * coff-rs6000.c, * coff-sh.c,
	* coff-tic4x.c, * coff-tic54x.c, * coff-tic80.c, * coff-w65.c,
	* elf-bfd.h, * elf-m10300.c, * elf.c, * elf32-avr.c, * elf32-bfin.c,
	* elf32-cr16.c, * elf32-cr16c.c, * elf32-cris.c, * elf32-crx.c,
	* elf32-d10v.c, * elf32-d30v.c, * elf32-dlx.c, * elf32-epiphany.c,
	* elf32-fr30.c, * elf32-frv.c, * elf32-i370.c, * elf32-i386.c,
	* elf32-i960.c, * elf32-ip2k.c, * elf32-iq2000.c, * elf32-lm32.c,
	* elf32-m32c.c, * elf32-m32r.c, * elf32-m68hc11.c, * elf32-m68hc12.c,
	* elf32-m68k.c, * elf32-mcore.c, * elf32-mep.c, * elf32-metag.c,
	* elf32-microblaze.c, * elf32-mips.c, * elf32-moxie.c,
	* elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c, * elf32-or1k.c,
	* elf32-pj.c, * elf32-ppc.c, * elf32-rl78.c, * elf32-rx.c,
	* elf32-s390.c, * elf32-sh.c, * elf32-spu.c, * elf32-tic6x.c,
	* elf32-v850.c, * elf32-vax.c, * elf32-visium.c, * elf32-wasm32.c,
	* elf32-xgate.c, * elf32-xtensa.c, * elf64-alpha.c,
	* elf64-ia64-vms.c, * elf64-mips.c, * elf64-mmix.c,
	* elf64-ppc.c, * elf64-s390.c, * elf64-sparc.c, * elf64-x86-64.c,
	* elfn32-mips.c, * elfnn-aarch64.c, * elfnn-ia64.c,
	* elfnn-riscv.c, * elfxx-mips.c, * elfxx-riscv.c, * elfxx-riscv.h,
	* elfxx-sparc.c, * elfxx-sparc.h, * reloc.c: Standardize
	unrecognized/unsupported reloc message.
2018-02-26 09:28:27 +10:30
Alan Modra
219d1afa89 Update year range in copyright notice of binutils files 2018-01-03 17:49:56 +10:30
Alan Modra
07d6d2b834 BFD whitespace fixes
Binutils is supposed to use tabs.  In my git config I have
whitespace = indent-with-non-tab,space-before-tab,trailing-space
and I got annoyed enough seeing red in "git diff" output to fix
the problems.

	* doc/header.sed: Trim trailing space when splitting lines.
	* aix386-core.c, * aout-adobe.c, * aout-arm.c, * aout-cris.c,
	* aout-ns32k.c, * aout-target.h, * aout-tic30.c, * aoutf1.h, * aoutx.h,
	* arc-got.h, * arc-plt.def, * arc-plt.h, * archive.c, * archive64.c,
	* archures.c, * armnetbsd.c, * bfd-in.h, * bfd.c, * bfdio.c, * binary.c,
	* bout.c, * cache.c, * cisco-core.c, * coff-alpha.c, * coff-apollo.c,
	* coff-arm.c, * coff-h8300.c, * coff-i386.c, * coff-i860.c,
	* coff-i960.c, * coff-m68k.c, * coff-m88k.c, * coff-mcore.c,
	* coff-mips.c, * coff-ppc.c, * coff-rs6000.c, * coff-sh.c,
	* coff-stgo32.c, * coff-tic4x.c, * coff-tic54x.c, * coff-tic80.c,
	* coff-we32k.c, * coff-x86_64.c, * coff-z80.c, * coff-z8k.c,
	* coff64-rs6000.c, * coffcode.h, * coffgen.c, * cofflink.c,
	* coffswap.h, * compress.c, * corefile.c, * cpu-alpha.c, * cpu-arm.c,
	* cpu-avr.c, * cpu-bfin.c, * cpu-cr16.c, * cpu-cr16c.c, * cpu-crx.c,
	* cpu-d10v.c, * cpu-frv.c, * cpu-ft32.c, * cpu-i370.c, * cpu-i960.c,
	* cpu-ia64-opc.c, * cpu-ip2k.c, * cpu-lm32.c, * cpu-m32r.c,
	* cpu-mcore.c, * cpu-microblaze.c, * cpu-mips.c, * cpu-moxie.c,
	* cpu-mt.c, * cpu-nios2.c, * cpu-ns32k.c, * cpu-or1k.c, * cpu-powerpc.c,
	* cpu-pru.c, * cpu-sh.c, * cpu-spu.c, * cpu-v850.c, * cpu-v850_rh850.c,
	* cpu-xgate.c, * cpu-z80.c, * dwarf1.c, * dwarf2.c, * ecoff.c,
	* ecofflink.c, * ecoffswap.h, * elf-bfd.h, * elf-eh-frame.c,
	* elf-hppa.h, * elf-m10200.c, * elf-m10300.c, * elf-s390-common.c,
	* elf-strtab.c, * elf-vxworks.c, * elf.c, * elf32-am33lin.c,
	* elf32-arc.c, * elf32-arm.c, * elf32-avr.c, * elf32-avr.h,
	* elf32-bfin.c, * elf32-cr16.c, * elf32-cr16c.c, * elf32-cris.c,
	* elf32-crx.c, * elf32-d10v.c, * elf32-d30v.c, * elf32-dlx.c,
	* elf32-epiphany.c, * elf32-fr30.c, * elf32-frv.c, * elf32-ft32.c,
	* elf32-h8300.c, * elf32-hppa.c, * elf32-i386.c, * elf32-i860.c,
	* elf32-i960.c, * elf32-ip2k.c, * elf32-lm32.c, * elf32-m32c.c,
	* elf32-m32r.c, * elf32-m68hc11.c, * elf32-m68hc12.c, * elf32-m68hc1x.c,
	* elf32-m68hc1x.h, * elf32-m68k.c, * elf32-m88k.c, * elf32-mcore.c,
	* elf32-mep.c, * elf32-metag.c, * elf32-microblaze.c, * elf32-mips.c,
	* elf32-moxie.c, * elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c,
	* elf32-nds32.h, * elf32-nios2.c, * elf32-or1k.c, * elf32-pj.c,
	* elf32-ppc.c, * elf32-ppc.h, * elf32-pru.c, * elf32-rl78.c,
	* elf32-rx.c, * elf32-s390.c, * elf32-score.c, * elf32-score.h,
	* elf32-score7.c, * elf32-sh-symbian.c, * elf32-sh.c, * elf32-sh64.c,
	* elf32-sparc.c, * elf32-spu.c, * elf32-tic6x.c, * elf32-tilegx.c,
	* elf32-tilegx.h, * elf32-tilepro.c, * elf32-tilepro.h, * elf32-v850.c,
	* elf32-vax.c, * elf32-wasm32.c, * elf32-xc16x.c, * elf32-xgate.c,
	* elf32-xgate.h, * elf32-xstormy16.c, * elf32-xtensa.c, * elf64-alpha.c,
	* elf64-hppa.c, * elf64-ia64-vms.c, * elf64-mips.c, * elf64-mmix.c,
	* elf64-ppc.c, * elf64-s390.c, * elf64-sh64.c, * elf64-sparc.c,
	* elf64-tilegx.c, * elf64-tilegx.h, * elf64-x86-64.c, * elfcore.h,
	* elflink.c, * elfn32-mips.c, * elfnn-aarch64.c, * elfnn-ia64.c,
	* elfnn-riscv.c, * elfxx-aarch64.c, * elfxx-aarch64.h, * elfxx-ia64.c,
	* elfxx-ia64.h, * elfxx-mips.c, * elfxx-riscv.c, * elfxx-sparc.c,
	* elfxx-tilegx.c, * elfxx-x86.c, * elfxx-x86.h, * freebsd.h, * hash.c,
	* host-aout.c, * hp300hpux.c, * hppabsd-core.c, * hpux-core.c,
	* i386aout.c, * i386linux.c, * i386lynx.c, * i386mach3.c, * i386msdos.c,
	* i386netbsd.c, * ieee.c, * ihex.c, * irix-core.c, * libaout.h,
	* libbfd-in.h, * libbfd.c, * libcoff-in.h, * libnlm.h, * libpei.h,
	* libxcoff.h, * linker.c, * lynx-core.c, * m68k4knetbsd.c,
	* m68klinux.c, * m68knetbsd.c, * m88kmach3.c, * mach-o-aarch64.c,
	* mach-o-arm.c, * mach-o-i386.c, * mach-o-target.c, * mach-o-x86-64.c,
	* mach-o.c, * mach-o.h, * merge.c, * mipsbsd.c, * mmo.c, * netbsd.h,
	* netbsd-core.c, * newsos3.c, * nlm-target.h, * nlm32-ppc.c,
	* nlm32-sparc.c, * nlmcode.h, * ns32k.h, * ns32knetbsd.c, * oasys.c,
	* opncls.c, * pc532-mach.c, * pdp11.c, * pe-arm.c, * pe-i386.c,
	* pe-mcore.c, * pe-mips.c, * pe-x86_64.c, * peXXigen.c, * pef.c,
	* pef.h, * pei-arm.c, * pei-i386.c, * pei-mcore.c, * pei-x86_64.c,
	* peicode.h, * plugin.c, * ppcboot.c, * ptrace-core.c, * reloc.c,
	* riscix.c, * rs6000-core.c, * section.c, * som.c, * som.h,
	* sparclinux.c, * sparcnetbsd.c, * srec.c, * stabs.c, * sunos.c,
	* syms.c, * targets.c, * tekhex.c, * trad-core.c, * vax1knetbsd.c,
	* vaxnetbsd.c, * verilog.c, * versados.c, * vms-alpha.c, * vms-lib.c,
	* vms-misc.c, * wasm-module.c, * wasm-module.h, * xcofflink.c,
	* xsym.c, * xsym.h: Whitespace fixes.
	* bfd-in2.h, * libbfd.h, * libcoff.h: Regenerate.
2017-12-06 17:51:43 +10:30
Djordje Todorovic
c9ec0e8945 BFD: Extract PID from MIPS core dump file
On MIPS o32, n32 and n64 platforms, PID information was not
correctly propagated from core dump file to internal GDB
structures.  This patch fixes that behavior.

A correct PID is needed by `libthread_db' library supplied with
glibc repository revisions before commit c579f48edba8 ("Remove
cached PID/TID in clone") or released versions before 2.25 for
GDB to fetch value of TLS variable from core file.

bfd/ChangeLog:

	* elf32-mips.c (elf32_mips_grok_psinfo): Extract core->pid.
	* elf64-mips.c (elf64_mips_grok_psinfo): Likewise.
	* elfn32-mips.c (elf32_mips_grok_psinfo): Likewise.
2017-11-08 21:19:05 +00:00
Djordje Todorovic
9031cb4af0 BFD: Write Linux core PRSTATUS note into MIPS core file
On MIPS o32, n32 and n64 platforms information such as PID was not
correctly written into core file from GDB.

This fixes that behavior.

bfd/ChangeLog:

	* elf32-mips.c (elf32_mips_write_core_note): New function.
	(elf_backend_write_core_note): New macro.
	* elf64-mips.c (elf64_mips_write_core_note): New function.
	(elf_backend_write_core_note): New macro.
	* elfn32-mips.c (elf32_mips_write_core_note): New function.
	(elf_backend_write_core_note): New macro.
2017-11-08 21:19:05 +00:00
H.J. Lu
5c3261b0e8 ELF: Call check_relocs after opening all inputs
For all ELF targers, call check_relocs after opening all inputs and
garbage collection.  Since the symbol resolution is known, check_relocs
can be simplified.  Also garbage collection doesn't need to undo what
check_relocs has done for symbols which have been garbage collected.
Since ELF targets never see the removed sections, gc_sweep_hook can be
removed from elf_backend_data and we can avoid GOT/PLT with garbage
collection now.

Set link_info.check_relocs_after_open_input to TRUE for all linker
targets which use ELF linker and update garbage collection tests to
remove unused GOT section.

ldemul_after_check_relocs is added for powerpc to support --secure-plt,
--bss-plt and --sdata-got.

Tested natively without regressions on i686, x86-64 and x32.  Tested
cross binutils on x86-64 without regressions for aarch64-linux,
alpha-linux, arm-linux, bfin-elf, cr16-elf, cris-elf, crx-elf, frv-linux,
hppa64-linux, hppa-linux, ia64-linux, lm32-elf, m32r-elf, m68k-linux,
mcore-elf, metag-elf, microblaze-linux, mips-linux, mmix, mn10300-elf,
nds32le-linux, nios2-linux, or1k-elf, powerpc64-linux, powerpc-linux,
riscv32-linux, riscv64-linux, s390-linux, s390x-linux, score-elf,
sh3-linux, sparc64-linux, sparc-linux, tic6x-elf, tilegx-linux,
tilepro-linux, vax-linux, x86_64-mingw32 and xtensa-linux.

bfd/

	* elf-bfd.h (elf_backend_data): Remove gc_sweep_hook.
	* elf32-arm.c (elf32_arm_gc_sweep_hook): Removed.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-bfin.c (bfin_gc_sweep_hook): Likewise.
	(bfinfdpic_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-cr16.c (elf32_cr16_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-cris.c (cris_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-hppa.c (elf32_hppa_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-lm32.c (lm32_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-m32r.c (m32r_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-m68k.c (elf_m68k_got_entry): Remove elf_m68k_gc_sweep_hook
	from comments.
	(elf_m68k_remove_got_entry_type): Removed.
	(elf_m68k_find_got_entry_ptr): Likewise.
	(elf_m68k_remove_got_entry): Likewise.
	(elf_m68k_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-mcore.c (mcore_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-metag.c (elf_metag_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-microblaze.c (elf_backend_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-mips.c (elf_backend_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-nds32.c (nds32_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-nios2.c (nios2_elf32_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-or1k.c (or1k_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-ppc.c (ppc_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-s390.c (elf_s390_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-sparc.c (elf_backend_gc_sweep_hook): Likewise.
	* elf32-tic6x.c (elf32_tic6x_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-tilegx.c (elf_backend_gc_sweep_hook): Likewise.
	* elf32-tilepro.c (tilepro_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-vax.c (elf_vax_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-xtensa.c (elf_xtensa_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf64-alpha.c (elf64_alpha_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf64-mips.c (elf_backend_gc_sweep_hook): Likewise.
	* elf64-mmix.c (mmix_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf64-ppc.c (elf_backend_gc_sweep_hook): Likewise.
	(ppc64_elf_gc_sweep_hook): Likewise.
	* elf64-s390.c (elf_s390_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf64-sparc.c (elf_backend_gc_sweep_hook): Likewise.
	* elf64-tilegx.c (elf_backend_gc_sweep_hook): Likewise.
	* elflink.c (elf_link_add_object_symbols): Don't call
	_bfd_elf_link_check_relocs here.
	(gc_sweep_hook_fn): Removed.
	(elf_gc_sweep): Remove gc_sweep_hook.
	* elfnn-aarch64.c (elfNN_aarch64_gc_sweep_hook): Removed.
	(elf_backend_gc_sweep_hook): Likewise.
	* elfnn-riscv.c (riscv_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elfxx-mips.c (_bfd_mips_elf_gc_sweep_hook): Likewise.
	* elfxx-mips.h (_bfd_mips_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elfxx-sparc.c (_bfd_sparc_elf_gc_sweep_hook): Likewise.
	* elfxx-sparc.h (_bfd_sparc_elf_gc_sweep_hook): Likewise.
	* elfxx-target.h (elf_backend_gc_sweep_hook): Likewise.
	(elfNN_bed): Remove elf_backend_gc_sweep_hook.
	* elfxx-tilegx.c (tilegx_elf_gc_sweep_hook): Removed.
	* elfxx-tilegx.h (tilegx_elf_gc_sweep_hook): Likewise.

ld/

	* emulparams/elf32_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Removed.
	* emulparams/elf_i386_be.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_i386_chaos.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_i386_ldso.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_i386_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_iamcu.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_k1om.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_l1om.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386lynx.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386moss.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386nw.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shelf.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shelf32.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shelf_nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shelf_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shlelf32_linux.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shlelf_linux.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shlelf_nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emultempl/aarch64elf.em (gld${EMULATION_NAME}_before_parse):
	Set link_info.check_relocs_after_open_input to TRUE.
	* emultempl/armelf.em (gld${EMULATION_NAME}_before_parse):
	Likewise.
	* emultempl/scoreelf.em (gld${EMULATION_NAME}_before_parse):
	Likewise.
	* emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Add
	after_parse_default.
	* emultempl/armcoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/beos.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/generic.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/gld960.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/gld960c.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/lnk960.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/m68kcoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/msp430.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/pe.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/pep.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/sunos.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/ticoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/vanilla.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Always
	set link_info.check_relocs_after_open_input to TRUE.
	(ld_${EMULATION_NAME}_emulation): Add $LDEMUL_AFTER_CHECK_RELOCS.
	* emultempl/linux.em (gld${EMULATION_NAME}_before_parse):
	Set link_info.check_relocs_after_open_input to TRUE.
	(ld_${EMULATION_NAME}_emulation): Add after_check_relocs_default.
	* emultempl/mmix-elfnmmo.em (mmix_before_parse): New function.
	(LDEMUL_BEFORE_PARSE): New.
	* emultempl/mmixelf.em (elfmmix_before_parse): Replace
	gld${EMULATION_NAME}_before_parse with mmix_before_parse.
	* emultempl/ppc32elf.em (ppc_after_open): Renamed to ...
	(ppc_after_check_relocs): This.  Call after_check_relocs_default
	instead of gld${EMULATION_NAME}_after_open.
	(LDEMUL_AFTER_OPEN): Removed.
	(LDEMUL_AFTER_CHECK_RELOCS): New.
	* ldemul.c (ldemul_after_check_relocs): New.
	(after_check_relocs_default): Likewise.
	* ldemul.h (ldemul_after_check_relocs): Likewise.
	(after_check_relocs_default): Likewise.
	(ld_emulation_xfer_struct): Add after_check_relocs.
	* ldlang.c (lang_process): Call ldemul_after_check_relocs after
	lang_check_relocs.
	* testsuite/ld-aarch64/gc-got-relocs.d: Don't expect GOT section.
	* testsuite/ld-aarch64/gc-tls-relocs.d: Likewise.
	* testsuite/ld-cris/tls-gc-68.d: Likewise.
	* testsuite/ld-cris/tls-gc-69.d: Likewise.
	* testsuite/ld-cris/tls-gc-70.d: Likewise.
	* testsuite/ld-cris/tls-gc-75.d: Likewise.
	* testsuite/ld-cris/tls-gc-79.d: Likewise.
	* testsuite/ld-mmix/bpo-10.d: Don't expect .MMIX.reg_contents
	section.
2017-10-16 03:50:13 -07:00
Maciej W. Rozycki
056bafd472 ELF/BFD: Hold the number of internal static relocs in `->reloc_count'
Correct a commit e5713223cb ("MIPS/BFD: For n64 hold the number of
internal relocs in `->reloc_count'") regression and change internal
relocation handling in the generic ELF BFD linker code such that, except
in the presence of R_SPARC_OLO10 relocations, a section's `reloc_count'
holds the number of internal rather than external relocations, making
the handling more consistent between GAS, which sets `->reloc_count'
with a call to `bfd_set_reloc', and LD, which sets `->reloc_count' as it
reads input sections.

The handling of dynamic relocations remains unchanged and they continue
holding the number of external relocations in `->reloc_count'; they are
also not converted to the internal form except in `elf_link_sort_relocs'
(which does not handle the general, i.e. non-n64-MIPS case of composed
relocations correctly as per the ELF gABI, though it does not seem to
matter for the targets we currently support).

The n64 MIPS backend is the only one with `int_rels_per_ext_rel' set to
non-one, and consequently the change is trivial for all the remaining
backends and targets.

	bfd/
	* elf-bfd.h (RELOC_AGAINST_DISCARDED_SECTION): Subtract `count'
	from `reloc_count' rather than decrementing it.
	* elf.c (bfd_section_from_shdr): Multiply the adjustment to
	`reloc_count' by `int_rels_per_ext_rel'.
	* elf32-score.c (score_elf_final_link_relocate): Do not multiply
	`reloc_count' by `int_rels_per_ext_rel' for last relocation
	entry determination.
	(s3_bfd_score_elf_check_relocs): Likewise.
	* elf32-score7.c (score_elf_final_link_relocate): Likewise.
	(s7_bfd_score_elf_relocate_section): Likewise.
	(s7_bfd_score_elf_check_relocs): Likewise.
	* elf64-mips.c (mips_elf64_get_reloc_upper_bound): Remove
	prototype and function.
	(mips_elf64_slurp_one_reloc_table): Do not update `reloc_count'.
	(mips_elf64_slurp_reloc_table): Assert that `reloc_count' is
	triple rather than once the sum of REL and RELA relocation entry
	counts.
	(bfd_elf64_get_reloc_upper_bound): Remove macro.
	* elflink.c (_bfd_elf_link_read_relocs): Do not multiply
	`reloc_count' by `int_rels_per_ext_rel' for internal relocation
	storage allocation size determination.
	(elf_link_input_bfd): Multiply `.ctors' and `.dtors' section's
	size by `int_rels_per_ext_rel'.  Do not multiply `reloc_count'
	by `int_rels_per_ext_rel' for last relocation entry
	determination.
	(bfd_elf_final_link): Do not multiply `reloc_count' by
	`int_rels_per_ext_rel' for internal relocation storage
	allocation size determination.
	(init_reloc_cookie_rels): Do not multiply `reloc_count' by
	`int_rels_per_ext_rel' for last relocation entry determination.
	(elf_gc_smash_unused_vtentry_relocs): Likewise.
	* elfxx-mips.c (_bfd_mips_elf_check_relocs): Likewise.
	(_bfd_mips_elf_relocate_section): Likewise.
2017-06-06 01:34:23 +01:00
Maciej W. Rozycki
e5713223cb MIPS/BFD: For n64 hold the number of internal relocs in `->reloc_count'
Revert parts of commit fee24f1c5b ("objdump improvements for mips
elf64"), <https://sourceware.org/ml/binutils/2003-03/msg00108.html>, and
make the `->reloc_count' member of `struct bfd_section' hold the actual
number of internal relocations stored in its `->relocation' vector.  To
do so adjust `mips_elf64_slurp_one_reloc_table' to set `->reloc_count'
to the actual number of internal relocations retrieved and discard
`mips_elf64_canonicalize_reloc', `mips_elf64_canonicalize_dynamic_reloc'
and their corresponding target macros.  Contrary to the description of
`mips_elf64_slurp_one_reloc_table', adjusted appropriately, this makes
generic relocation processing code happy and satisfies the "merge notes
section" binutils test case.

Add extra binutils test cases to expand the coverage of the generic
"merge notes section" test case, now passing with the n64 ABI, across
the MIPS o32, n32 and n64 ABIs regardless of the default ABI selected in
target configuration, and also to verify correctness of the relocations
produced.  Conversely, do not provide any additional test cases for the
original issue addressed with the commit referred:

- objdump would display only 1/3 of the total number of relocations,
  because it used the external relocation count, but each external
  relocation is brought in as 3 internal relocations.

as n64 ABI relocation processing with `objdump -r' and `objdump -R' is
already widely covered across the GAS and LD test suites.

	bfd/
	* elf64-mips.c (mips_elf64_canonicalize_reloc): Remove prototype
	and function.
	(mips_elf64_canonicalize_dynamic_reloc): Likewise.
	(mips_elf64_slurp_one_reloc_table): Set `reloc_count' to the
	actual number of internal relocations retrieved.  Adjust
	function description.
	(bfd_elf64_canonicalize_reloc): Remove macro.
	(bfd_elf64_canonicalize_dynamic_reloc): Likewise.

	binutils/
	* testsuite/binutils-all/mips/mips-note-2.d: New test.
	* testsuite/binutils-all/mips/mips-note-2r.d: New test.
	* testsuite/binutils-all/mips/mips-note-2-n32.d: New test.
	* testsuite/binutils-all/mips/mips-note-2-n64.d: New test.
	* testsuite/binutils-all/mips/mips-note-2r-n32.d: New test.
	* testsuite/binutils-all/mips/mips-note-2r-n64.d: New test.
	* testsuite/binutils-all/mips/mips.exp: Define `has_newabi'.
	Run the new tests.
2017-05-20 00:31:39 +01:00
Maciej W. Rozycki
5d58c73379 MIPS/BFD: Remove duplicate NewABI JALR relocation handling
Remove separate original NewABI JALR relocation handling, introduced
with commit d06471104a ("relax jalr $t9 [R_MIPS_JALR symbol] to bal
symbol"), <https://sourceware.org/ml/binutils/2003-03/msg00394.html>,
and only used by LD with the `--relax' option specified, and rely solely
on `mips_elf_perform_relocation' code, which has been introduced with
commit 1367d393bb ("On the RM9000 convert jal to bal if in range"),
<https://www.sourceware.org/ml/binutils/2004-12/msg00088.html> and since
made more complete, across all the three ABIs.

Also remove the `--relax' option, now irrelevant, from the tests added
with the former commit.

	bfd/
	* elfxx-mips.h (_bfd_mips_relax_section): Remove prototype.
	* elfxx-mips.c (_bfd_mips_relax_section): Remove function.
	* elf64-mips.c (bfd_elf64_bfd_relax_section): Remove macro.
	* elfn32-mips.c (bfd_elf32_bfd_relax_section): Likewise.

	ld/
	* testsuite/ld-mips-elf/relax-jalr-n32.d: Remove `--relax'
	option.
	* testsuite/ld-mips-elf/relax-jalr-n32-shared.d: Likewise.
	* testsuite/ld-mips-elf/relax-jalr-n64.d: Likewise.
	* testsuite/ld-mips-elf/relax-jalr-n64-shared.d: Likewise.
2017-02-23 23:49:14 +00:00
Alan Modra
2571583aed Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
Alan Modra
5474d94f03 dynrelro section for read-only dynamic symbols copied into executable
Variables defined in shared libraries are copied into an executable's
.bss section when code in the executable is non-PIC and thus would
require dynamic text relocations to access the variable directly in
the shared library.  Recent x86 toolchains also copy variables into
the executable to gain a small speed improvement.

The problem is that if the variable was originally read-only, the copy
in .bss is writable, potentially opening a security hole.  This patch
cures that problem by putting the copy in a section that becomes
read-only after ld.so relocation, provided -z relro is in force.

The patch also fixes a microblaze linker segfault on attempting to
use dynamic bss variables.

bfd/
	PR ld/20995
	* elf-bfd.h (struct elf_link_hash_table): Add sdynrelro and
	sreldynrelro.
	(struct elf_backend_data): Add want_dynrelro.
	* elfxx-target.h (elf_backend_want_dynrelro): Define.
	(elfNN_bed): Update initializer.
	* elflink.c (_bfd_elf_create_dynamic_sections): Create
	sdynrelro and sreldynrelro sections.
	* elf32-arm.c (elf32_arm_adjust_dynamic_symbol): Place variables
	copied into the executable from read-only sections into sdynrelro.
	(elf32_arm_size_dynamic_sections): Handle sdynrelro.
	(elf32_arm_finish_dynamic_symbol): Select sreldynrelro for
	dynamic relocs in sdynrelro.
	(elf_backend_want_dynrelro): Define.
	* elf32-hppa.c (elf32_hppa_adjust_dynamic_symbol)
	(elf32_hppa_size_dynamic_sections, elf32_hppa_finish_dynamic_symbol)
	(elf_backend_want_dynrelro): As above.
	* elf32-i386.c (elf_i386_adjust_dynamic_symbol)
	(elf_i386_size_dynamic_sections, elf_i386_finish_dynamic_symbol)
	(elf_backend_want_dynrelro): As above.
	* elf32-metag.c (elf_metag_adjust_dynamic_symbol)
	(elf_metag_size_dynamic_sections, elf_metag_finish_dynamic_symbol)
	(elf_backend_want_dynrelro): As above.
	* elf32-microblaze.c (microblaze_elf_adjust_dynamic_symbol)
	(microblaze_elf_size_dynamic_sections)
	(microblaze_elf_finish_dynamic_symbol)
	(elf_backend_want_dynrelro): As above.
	* elf32-nios2.c (nios2_elf32_finish_dynamic_symbol)
	(nios2_elf32_adjust_dynamic_symbol)
	(nios2_elf32_size_dynamic_sections)
	(elf_backend_want_dynrelro): As above.
	* elf32-or1k.c (or1k_elf_finish_dynamic_symbol)
	(or1k_elf_adjust_dynamic_symbol, or1k_elf_size_dynamic_sections)
	(elf_backend_want_dynrelro): As above.
	* elf32-ppc.c (ppc_elf_adjust_dynamic_symbol)
	(ppc_elf_size_dynamic_sections, ppc_elf_finish_dynamic_symbol)
	(elf_backend_want_dynrelro): As above.
	* elf32-s390.c (elf_s390_adjust_dynamic_symbol)
	(elf_s390_size_dynamic_sections, elf_s390_finish_dynamic_symbol)
	(elf_backend_want_dynrelro): As above.
	* elf32-tic6x.c (elf32_tic6x_adjust_dynamic_symbol)
	(elf32_tic6x_size_dynamic_sections)
	(elf32_tic6x_finish_dynamic_symbol)
	(elf_backend_want_dynrelro): As above.
	* elf32-tilepro.c (tilepro_elf_adjust_dynamic_symbol)
	(tilepro_elf_size_dynamic_sections)
	(tilepro_elf_finish_dynamic_symbol)
	(elf_backend_want_dynrelro): As above.
	* elf64-ppc.c (ppc64_elf_adjust_dynamic_symbol)
	(ppc64_elf_size_dynamic_sections, ppc64_elf_finish_dynamic_symbol)
	(elf_backend_want_dynrelro): As above.
	* elf64-s390.c (elf_s390_adjust_dynamic_symbol)
	(elf_s390_size_dynamic_sections, elf_s390_finish_dynamic_symbol)
	(elf_backend_want_dynrelro): As above.
	* elf64-x86-64.c (elf_x86_64_adjust_dynamic_symbol)
	(elf_x86_64_size_dynamic_sections)
	(elf_x86_64_finish_dynamic_symbol)
	(elf_backend_want_dynrelro): As above.
	* elfnn-aarch64.c (elfNN_aarch64_adjust_dynamic_symbol)
	(elfNN_aarch64_size_dynamic_sections)
	(elfNN_aarch64_finish_dynamic_symbol)
	(elf_backend_want_dynrelro): As above.
	* elfnn-riscv.c (riscv_elf_adjust_dynamic_symbol)
	(riscv_elf_size_dynamic_sections, riscv_elf_finish_dynamic_symbol)
	(elf_backend_want_dynrelro): As above.
	* elfxx-mips.c (_bfd_mips_elf_adjust_dynamic_symbol)
	(_bfd_mips_elf_size_dynamic_sections)
	(_bfd_mips_vxworks_finish_dynamic_symbol): As above.
	* elfxx-sparc.c (_bfd_sparc_elf_adjust_dynamic_symbol)
	(_bfd_sparc_elf_size_dynamic_sections)
	(_bfd_sparc_elf_finish_dynamic_symbol): As above.
	* elfxx-tilegx.c (tilegx_elf_adjust_dynamic_symbol)
	(tilegx_elf_size_dynamic_sections)
	(tilegx_elf_finish_dynamic_symbol): As above.
	* elf32-mips.c (elf_backend_want_dynrelro): Define.
	* elf64-mips.c (elf_backend_want_dynrelro): Define.
	* elf32-sparc.c (elf_backend_want_dynrelro): Define.
	* elf64-sparc.c (elf_backend_want_dynrelro): Define.
	* elf32-tilegx.c (elf_backend_want_dynrelro): Define.
	* elf64-tilegx.c (elf_backend_want_dynrelro): Define.
	* elf32-microblaze.c (microblaze_elf_adjust_dynamic_symbol): Tidy.
	(microblaze_elf_size_dynamic_sections): Handle sdynbss.
	* elf32-nios2.c (nios2_elf32_size_dynamic_sections): Make use
	of linker shortcuts to dynamic sections rather than comparing
	names.  Correctly set "got" flag.
ld/
	PR ld/20995
	* testsuite/ld-arm/farcall-mixed-app-v5.d: Update to suit changed
	stub hash table traversal caused by section id increment.  Accept
	the previous output too.
	* testsuite/ld-arm/farcall-mixed-app.d: Likewise.
	* testsuite/ld-arm/farcall-mixed-lib-v4t.d: Likewise.
	* testsuite/ld-arm/farcall-mixed-lib.d: Likewise.
	* testsuite/ld-elf/pr20995a.s, * testsuite/ld-elf/pr20995b.s,
	* testsuite/ld-elf/pr20995.r: New test.
	* testsuite/ld-elf/elf.exp: Run it.
2016-12-26 13:47:51 +10:30
Alan Modra
4eca02287c Remove syntactic sugar
Now that _bfd_error_handler is not a function pointer.

	* aout-adobe.c: Replace (*_bfd_error_handler) (...) with
	_bfd_error_handler (...) throughout.
	* aout-cris.c, * aoutx.h, * archive.c, * bfd.c, * binary.c,
	* cache.c, * coff-alpha.c, * coff-arm.c, * coff-h8300.c,
	* coff-i860.c, * coff-mcore.c, * coff-ppc.c, * coff-rs6000.c,
	* coff-sh.c, * coff-tic4x.c, * coff-tic54x.c, * coff-tic80.c,
	* coff64-rs6000.c, * coffcode.h, * coffgen.c, * cofflink.c,
	* coffswap.h, * cpu-arm.c, * cpu-m68k.c, * cpu-sh.c, * dwarf2.c,
	* ecoff.c, * elf-eh-frame.c, * elf-m10300.c, * elf.c, * elf32-arc.c,
	* elf32-arm.c, * elf32-avr.c, * elf32-bfin.c, * elf32-cr16.c,
	* elf32-cris.c, * elf32-crx.c, * elf32-dlx.c, * elf32-frv.c,
	* elf32-hppa.c, * elf32-i370.c, * elf32-i386.c, * elf32-lm32.c,
	* elf32-m32c.c, * elf32-m32r.c, * elf32-m68hc1x.c, * elf32-m68k.c,
	* elf32-mcore.c, * elf32-mep.c, * elf32-metag.c, * elf32-microblaze.c,
	* elf32-mips.c, * elf32-nds32.c, * elf32-nios2.c, * elf32-or1k.c,
	* elf32-pj.c, * elf32-ppc.c, * elf32-rl78.c, * elf32-s390.c,
	* elf32-score.c, * elf32-score7.c, * elf32-sh.c, * elf32-sh64.c,
	* elf32-sparc.c, * elf32-spu.c, * elf32-tic6x.c, * elf32-tilepro.c,
	* elf32-v850.c, * elf32-vax.c, * elf32-xtensa.c, * elf64-alpha.c,
	* elf64-hppa.c, * elf64-ia64-vms.c, * elf64-mips.c, * elf64-mmix.c,
	* elf64-ppc.c, * elf64-s390.c, * elf64-sh64.c, * elf64-sparc.c,
	* elf64-x86-64.c, * elfcode.h, * elfcore.h, * elflink.c,
	* elfn32-mips.c, * elfnn-aarch64.c, * elfnn-ia64.c, * elfxx-mips.c,
	* elfxx-sparc.c, * elfxx-tilegx.c, * hpux-core.c, * i386linux.c,
	* ieee.c, * ihex.c, * libbfd.c, * linker.c, * m68klinux.c,
	* mach-o.c, * merge.c, * mmo.c, * oasys.c, * osf-core.c, * pdp11.c,
	* pe-mips.c, * peXXigen.c, * pef.c, * plugin.c, * reloc.c,
	* rs6000-core.c, * sco5-core.c, * som.c, * sparclinux.c, * srec.c,
	* stabs.c, * syms.c, * vms-alpha.c, * vms-lib.c, * vms-misc.c,
	* xcofflink.c: Likewise.
2016-09-30 15:17:44 +09:30
Maciej W. Rozycki
c9775dde32 MIPS16: Add R_MIPS16_PC16_S1 branch relocation support
For R_MIPS16_PC16_S1 the calculation is `(sign_extend(A) + S - P) >> 1'
and the usual MIPS16 bit shuffling applies to relocated field handling,
as per the encoding of the branch target in the extended form of the
MIPS16 B, BEQZ, BNEZ, BTEQZ and BTNEZ instructions.

	include/
	* elf/mips.h (R_MIPS16_PC16_S1): New relocation.

	bfd/
	* elf32-mips.c (elf_mips16_howto_table_rel): Add
	R_MIPS16_PC16_S1.
	(mips16_reloc_map): Likewise.
	* elf64-mips.c (mips16_elf64_howto_table_rel): Likewise.
	(mips16_elf64_howto_table_rela): Likewise.
	(mips16_reloc_map): Likewise.
	* elfn32-mips.c (elf_mips16_howto_table_rel): Likewise.
	(elf_mips16_howto_table_rela): Likewise.
	(mips16_reloc_map): Likewise.
	* elfxx-mips.c (mips16_branch_reloc_p): New function.
	(mips16_reloc_p): Handle R_MIPS16_PC16_S1.
	(b_reloc_p): Likewise.
	(mips_elf_calculate_relocation): Likewise.
	(_bfd_mips_elf_check_relocs): Likewise.
	* reloc.c (BFD_RELOC_MIPS16_16_PCREL_S1): New relocation.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.

	gas/
	* config/tc-mips.c (mips16_reloc_p): Handle
	BFD_RELOC_MIPS16_16_PCREL_S1.
	(b_reloc_p): Likewise.
	(limited_pcrel_reloc_p): Likewise.
	(md_pcrel_from): Likewise.
	(md_apply_fix): Likewise.
	(tc_gen_reloc): Likewise.
	(md_convert_frag): Likewise.
	(mips_fix_adjustable): Update comment.
	* testsuite/gas/mips/mips16-branch-reloc-2.d: Remove error
	output, add dump patterns.
	* testsuite/gas/mips/mips16-branch-reloc-3.d: Remove error
	output, add dump patterns.
	* testsuite/gas/mips/mips16-branch-addend-2.d: Remove error
	output, add dump patterns.
	* testsuite/gas/mips/mips16-branch-addend-3.d: Remove error
	output, add dump patterns.
	* testsuite/gas/mips/mips16-branch-absolute.d: Remove error
	output, add dump patterns.
	* testsuite/gas/mips/mips16-branch-reloc-2.l: Remove file.
	* testsuite/gas/mips/mips16-branch-reloc-3.l: Remove file.
	* testsuite/gas/mips/mips16-branch-addend-2.l: Remove file.
	* testsuite/gas/mips/mips16-branch-addend-3.l: Remove file.
	* testsuite/gas/mips/mips16-branch-absolute.l: Remove file.
	* testsuite/gas/mips/mips16-branch-addend-2.s: Add padding.
	* testsuite/gas/mips/branch-weak.s: Adjust alignment, avoid
	implicit instruction padding, avoid MIPS16 JR->JRC conversion.
	* testsuite/gas/mips/branch-weak-6.d: New test.
	* testsuite/gas/mips/branch-weak-7.d: New test.
	* testsuite/gas/mips/mips.exp: Run the new tests.

	ld/
	* testsuite/ld-mips-elf/mips16-branch-2.d: New test.
	* testsuite/ld-mips-elf/mips16-branch-3.d: New test.
	* testsuite/ld-mips-elf/mips16-branch-addend-2.d: New test.
	* testsuite/ld-mips-elf/mips16-branch-addend-3.d: New test.
	* testsuite/ld-mips-elf/mips16-branch.s: New test source.
	* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
2016-06-28 01:29:56 +01:00
H.J. Lu
e6cc316af9 Enable 64-bit archives in ar and ranlib
Since existing ld and gold support the 64-bit (MIPS) ELF archives, we
can use the 64-bit (MIPS) ELF archives as 64-bit archives.  Since the
plugin target is used to create archive in plugin-enabled ar, we need
a way to enable 64-bit archives in the plugin target.  This patch adds
--enable-64-bit-archive to bfd to force 64-bit archives in ar and
ranlib.  Since both 64-bit MIPS and s390 ELF targets currently use
64-bit archives, 64-bit archives are enabled by default for them.
64-bit archive is generated automatically if the archive is too big.

Tested on Linux/x86 and Linux/x86-64 with existing ld and gold.

bfd/

	PR binutils/14625
	* archive.c (bfd_slurp_armap): Replace
	bfd_elf64_archive_slurp_armap with
	_bfd_archive_64_bit_slurp_armap.
	(bsd_write_armap): Call _bfd_archive_64_bit_write_armap if
	BFD64 is defined and the archive is too big.
	(coff_write_armap): Likewise.
	* archive64.c (bfd_elf64_archive_slurp_armap): Renamed to ...
	(_bfd_archive_64_bit_slurp_armap): This.
	(bfd_elf64_archive_write_armap): Renamed to ...
	(_bfd_archive_64_bit_write_armap): This.
	* configure.ac: Add --enable-64-bit-archive.
	(want_64_bit_archive): New.  Set to true by default for 64-bit
	MIPS and s390 ELF targets.
	(USE_64_BIT_ARCHIVE): New AC_DEFINE.
	* config.in: Regenerated.
	* configure: Likewise.
	* elf64-mips.c (bfd_elf64_archive_functions): Removed.
	(bfd_elf64_archive_slurp_armap): Likewise.
	(bfd_elf64_archive_write_armap): Likewise.
	(bfd_elf64_archive_slurp_extended_name_table): Likewise.
	(bfd_elf64_archive_construct_extended_name_table): Likewise.
	(bfd_elf64_archive_truncate_arname): Likewise.
	(bfd_elf64_archive_read_ar_hdr): Likewise.
	(bfd_elf64_archive_write_ar_hdr): Likewise.
	(bfd_elf64_archive_openr_next_archived_file): Likewise.
	(bfd_elf64_archive_get_elt_at_index): Likewise.
	(bfd_elf64_archive_generic_stat_arch_elt): Likewise.
	(bfd_elf64_archive_update_armap_timestamp): Likewise.
	* elf64-s390.c (bfd_elf64_archive_functions): Removed.
	(bfd_elf64_archive_slurp_armap): Likewise.
	(bfd_elf64_archive_write_armap): Likewise.
	(bfd_elf64_archive_slurp_extended_name_table): Likewise.
	(bfd_elf64_archive_construct_extended_name_table): Likewise.
	(bfd_elf64_archive_truncate_arname): Likewise.
	(bfd_elf64_archive_read_ar_hdr): Likewise.
	(bfd_elf64_archive_write_ar_hdr): Likewise.
	(bfd_elf64_archive_openr_next_archived_file): Likewise.
	(bfd_elf64_archive_get_elt_at_index): Likewise.
	(bfd_elf64_archive_generic_stat_arch_elt): Likewise.
	(bfd_elf64_archive_update_armap_timestamp): Likewise.
	* elfxx-target.h (TARGET_BIG_SYM): Use _bfd_archive_64_bit on
	BFD_JUMP_TABLE_ARCHIVE if USE_64_BIT_ARCHIVE is defined and
	bfd_elfNN_archive_functions isn't defined.
	(TARGET_LITTLE_SYM): Likewise.
	* libbfd-in.h (_bfd_archive_64_bit_slurp_armap): New prototype.
	(_bfd_archive_64_bit_write_armap): Likewise.
	(_bfd_archive_64_bit_slurp_extended_name_table): New macro.
	(_bfd_archive_64_bit_construct_extended_name_table): Likewise.
	(_bfd_archive_64_bit_truncate_arname): Likewise.
	(_bfd_archive_64_bit_read_ar_hdr): Likewise.
	(_bfd_archive_64_bit_write_ar_hdr): Likewise.
	(_bfd_archive_64_bit_openr_next_archived_file): Likewise.
	(_bfd_archive_64_bit_get_elt_at_index): Likewise.
	(_bfd_archive_64_bit_generic_stat_arch_elt): Likewise.
	(_bfd_archive_64_bit_update_armap_timestamp): Likewise.
	* libbfd.h: Regenerated.
	* plugin.c (plugin_vec): Use _bfd_archive_64_bit on
	BFD_JUMP_TABLE_ARCHIVE if USE_64_BIT_ARCHIVE is defined.

binutils/

	PR binutils/14625
	* NEWS: Mention --enable-64-bit-archive.
2016-05-25 09:47:03 -07:00
Alan Modra
6f2750feaf Copyright update for binutils 2016-01-01 23:00:01 +10:30
Alan Modra
6346d5ca43 Fallout from recent bfd_reloc_outofrange changes
Commit ec93045b and cd21f5da introduced a large number of tic4x and
tic54x regressions, due to the new checks being wrong for targets
with octets_per_byte != 1.  To fix that I introduced a new
bfd_get_section_limit_octets and performed the check on octets rather
than byte adresses, reducing the number of bfd_octets_per_byte calls.
bfd_octets_per_byte is rather expensive..

I then wondered why the same bfd_reloc_outofrange check added to
bfd_perform_relocation wasn't also added to bfd_install_relocation.
The two functions are virtually identical and ought to remain that
way.  However, adding the same check to bfd_install_relocation
resulted in ld-elf "FAIL Link eh-group.o to eh-group" on many ELF
targets, including x64_64-linux.  The reason being that eh-group.o
has NONE relocs at the end of a section, and most targets give NONE
relocs a non-zero size.  So if we are to keep the new outofrange
check it appears that NONE relocs must have a zero size.

	* bfd-in.h (bfd_get_section_limit_octets): New define, extracted from..
	(bfd_get_section_limit): ..here.
	* reloc.c (bfd_perform_relocation): Correct bfd_reloc_outofrange check.
	(bfd_install_relocation, _bfd_final_link_relocate): Add same check here.
	* elf32-sh.c (sh_elf_reloc): Correct bfd_reloc_outofrange check.
	* elf32-ppc.c (ppc_elf_addr16_ha_reloc): Remove duplicated
	bfd_reloc_outofrange check.
	* bfd-in2.h: Regenerate.

	* cpu-ns32k.c (_bfd_do_ns32k_reloc_contents): Return bfd_reloc_ok
	on zero size relocs.
	* ecoff.c (ecoff_reloc_link_order): Likewise.
	* elf32-nds32.c (nds32_relocate_contents): Likewise.
	* elfxx-aarch64.c (_bfd_aarch64_elf_put_addend): Likewise.

	* reloc.c (_bfd_relocate_contents): Don't bomb on zero size relocs.
	(_bfd_clear_contents): Likewise.
	* elfxx-mips.c (mips_elf_obtain_contents): Likewise.
	(mips_elf_perform_relocation): Likewise.

	* aoutx.h (aout_link_reloc_link_order): Allow for NULL return
	from malloc on zero size alloc.
	* cofflink.c (_bfd_coff_reloc_link_order): Likewise.
	* elflink.c (elf_reloc_link_order): Likewise.
	* linker.c (_bfd_generic_reloc_link_order): Likewise.
	* pdp11.c (aout_link_reloc_link_order): Likewise.
	* xcofflink.c (xcoff_reloc_link_order): Likewise.

	* aoutx.h (howto_table_ext): Ensure NONE relocs have size 3,
	bitsize 0, and complain_overflow_dont.
	* coff-sparc.c (coff_sparc_howto_table): Likewise.
	* elf-hppa.h (elf_hppa_howto_table): Likewise.
	* elf-m10200.c (elf_mn10200_howto_table): Likewise.
	* elf-m10300.c (elf_mn10300_howto_table): Likewise.
	* elf32-arc.c (elf_arc_howto_table): Likewise.
	* elf32-arm.c (elf32_arm_howto_table_1): Likewise.
	* elf32-avr.c (elf_avr_howto_table): Likewise.
	* elf32-bfin.c (bfin_howto_table): Likewise.
	* elf32-cr16.c (cr16_elf_howto_table): Likewise.
	* elf32-cris.c (cris_elf_howto_table): Likewise.
	* elf32-crx.c (crx_elf_howto_table): Likewise.
	* elf32-d10v.c (elf_d10v_howto_table): Likewise.
	* elf32-d30v.c (elf_d30v_howto_table): Likewise.
	* elf32-dlx.c (dlx_elf_howto_table): Likewise.
	* elf32-epiphany.c (epiphany_elf_howto_table): Likewise.
	* elf32-fr30.c (fr30_elf_howto_table): Likewise.
	* elf32-frv.c (elf32_frv_howto_table): Likewise.
	* elf32-h8300.c (h8_elf_howto_table): Likewise.
	* elf32-i370.c (i370_elf_howto_raw): Likewise.
	* elf32-i386.c (elf_howto_table): Likewise.
	* elf32-i860.c (elf32_i860_howto_table): Likewise.
	* elf32-i960.c (elf32_i960_relocate): Likewise.
	* elf32-ip2k.c (ip2k_elf_howto_table): Likewise.
	* elf32-iq2000.c (iq2000_elf_howto_table): Likewise.
	* elf32-lm32.c (lm32_elf_howto_table): Likewise.
	* elf32-m32c.c (m32c_elf_howto_table): Likewise.
	* elf32-m32r.c (m32r_elf_howto_table): Likewise.
	* elf32-m68hc11.c (elf_m68hc11_howto_table): Likewise.
	* elf32-m68hc12.c (elf_m68hc11_howto_table): Likewise.
	* elf32-m68k.c (howto_table): Likewise.
	* elf32-mcore.c (mcore_elf_howto_raw): Likewise.
	* elf32-mep.c (mep_elf_howto_table): Likewise.
	* elf32-metag.c (elf_metag_howto_table): Likewise.
	* elf32-microblaze.c (microblaze_elf_howto_raw): Likewise.
	* elf32-mips.c (elf_mips_howto_table_rel): Likewise.
	* elf32-moxie.c (moxie_elf_howto_table): Likewise.
	* elf32-msp430.c (elf_msp430_howto_table): Likewise.
	* elf32-mt.c (mt_elf_howto_table): Likewise.
	* elf32-nds32.c (nds32_elf_howto_table): Likewise.
	* elf32-nios2.c (elf_nios2_howto_table_rel): Likewise.
	* elf32-or1k.c (or1k_elf_howto_table): Likewise.
	* elf32-pj.c (pj_elf_howto_table): Likewise.
	* elf32-ppc.c (ppc_elf_howto_raw): Likewise.
	* elf32-rl78.c (rl78_elf_howto_table): Likewise.
	* elf32-rx.c (rx_elf_howto_table): Likewise.
	* elf32-s390.c (elf_howto_table): Likewise.
	* elf32-score.c (elf32_score_howto_table): Likewise.
	* elf32-score7.c (elf32_score_howto_table): Likewise.
	* elf32-sh-relocs.h (R_SH_NONE): Likewise.
	* elf32-spu.c (elf_howto_table): Likewise.
	* elf32-tic6x.c (elf32_tic6x_howto_table): Likewise.
	* elf32-tilepro.c (tilepro_elf_howto_table): Likewise.
	* elf32-v850.c (v850_elf_howto_table): Likewise.
	* elf32-vax.c (howto_table): Likewise.
	* elf32-visium.c (visium_elf_howto_table): Likewise.
	* elf32-xc16x.c (xc16x_elf_howto_table): Likewise.
	* elf32-xgate.c (elf_xgate_howto_table): Likewise.
	* elf32-xstormy16.c (xstormy16_elf_howto_table): Likewise.
	* elf32-xtensa.c (elf_howto_table): Likewise.
	* elf64-alpha.c (elf64_alpha_howto_table): Likewise.
	* elf64-mips.c (mips_elf64_howto_table_rel): Likewise.
	* elf64-mmix.c (elf_mmix_howto_table): Likewise.
	* elf64-ppc.c (ppc64_elf_howto_raw): Likewise.
	* elf64-s390.c (elf_howto_table): Likewise.
	* elf64-sh64.c (sh_elf64_howto_table): Likewise.
	* elf64-x86-64.c (x86_64_elf_howto_table): Likewise.
	* elfn32-mips.c (elf_mips_howto_table_rel): Likewise.
	* elfnn-aarch64.c (elfNN_aarch64_howto_table): Likewise.
	(elfNN_aarch64_howto_none): Likewise.
	* elfxx-ia64.c (ia64_howto_table): Likewise.
	* elfxx-sparc.c (_bfd_sparc_elf_howto_table): Likewise.
	* elfxx-tilegx.c (tilegx_elf_howto_table): Likewise.
	* nlm32-sparc.c (nlm32_sparc_howto_table): Likewise.
2015-01-19 19:37:45 +10:30
Nick Clifton
cd21f5daad Fix memory access violations triggered by running objdump on fuzzed binaries.
PR binutils/17512
	* elf-m10300.c (mn10300_info_to_howto): Replace assertion with an
	error message.  Never return an invalid howto pointer.
	* elf32-cr16.c (cr16_info_to_howto): Likewise.
	* elf32-crx.c (elf_crx_info_to_howto): Likewise.
	* elf32-i370.c (i370_elf_info_to_howto): Likewise.
	* elf32-mcore.c (mcore_elf_info_to_howto): Likewise.
	* elf32-microblaze.c (microblaze_elf_info_to_howto): Likewise.
	* elf32-mips.c (mips_elf32_rtype_to_howto): Likewise.
	* elf32-pj.c (pj_elf_info_to_howto): Likewise.
	* elf32-ppc.c (ppc_elf_info_to_howto): Likewise.
	* elf32-spu.c (spu_elf_info_to_howto): Likewise.
	* elf32-v850.c (v850_elf_info_to_howto_rela): Likewise.
	* elf32-vax.c (rtype_to_howto): Likewise.
	* elf64-alpha.c (elf64_alpha_info_to_howto): Likewise.
	* elf64-mips.c (mips_elf64_rtype_to_howto): Likewise.
	* elfn32-mips.c (sh_elf_info_to_howto): Likewise.
	* elf32-sh.c (sh_elf_info_to_howto): Likewise.
	(sh_elf_reloc): Check that the reloc is in range.
	* reloc.c (bfd_perform_relocation): Check that the section is big
	enough for the entire reloc.
	(bfd_generic_get_relocated_section_contents): Report unexpected
	return values from perform_reloc.
2015-01-15 16:22:55 +00:00
Alan Modra
b90efa5b79 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
Alan Modra
28dbcedc7b Don't sort ld -r relocs for mips
HI16/LO16 are deliberately put adjacent, which might mean relocs are
then not sorted by r_offset.  See tc-mips.c:mips_frob_file.  Don't undo
the HI16/LO16 sorting.

	PR 17666
	* elf-bfd.h (struct elf_backend_data): Add sort_relocs_p.
	* elfxx-target.h (elf_backend_sort_relocs_p): Define.
	(elfNN_bed): Init new field.
	* elflink.c (elf_link_adjust_relocs): Conditionally sort.
	(bfd_elf_final_link): Control sorting of relocs.
	* elfxx-mips.c (_bfd_mips_elf_sort_relocs_p): New function.
	* elfxx-mips.h (_bfd_mips_elf_sort_relocs_p): Declare.
	* elf32-mips.c (elf_backend_sort_relocs_p): Define.
	* elf64-mips.c (elf_backend_sort_relocs_p): Define.
2014-12-10 09:55:31 +10:30
Andrew Bennett
7361da2c95 Add support for MIPS R6.
bfd/
 	* aoutx.h (NAME (aout, machine_type)): Add mips32r6 and mips64r6.
 	* archures.c (bfd_architecture): Likewise.
 	* bfd-in2.h (bfd_architecture): Likewise.
 	(bfd_reloc_code_real): Add relocs BFD_RELOC_MIPS_21_PCREL_S2,
 	BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3 and
 	BFD_RELOC_MIPS_19_PCREL_S2.
 	* cpu-mips.c (arch_info_struct): Add mips32r6 and mips64r6.
 	* elf32-mips.c: Define relocs R_MIPS_PC21_S2, R_MIPS_PC26_S2
 	R_MIPS_PC18_S3, R_MIPS_PC19_S2, R_MIPS_PCHI16 and R_MIPS_PCLO16.
 	(mips_reloc_map): Add entries for BFD_RELOC_MIPS_21_PCREL_S2,
 	BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3,
 	BFD_RELOC_MIPS_19_PCREL_S2, BFD_RELOC_HI16_S_PCREL and
 	BFD_RELOC_LO16_PCREL.
 	* elf64-mips.c: Define REL, and RELA relocations R_MIPS_PC21_S2,
	R_MIPS_PC26_S2, R_MIPS_PC18_S3, R_MIPS_PC19_S2, R_MIPS_PCHI16
	and R_MIPS_PCLO16.
 	(mips_reloc_map): Add entries for BFD_RELOC_MIPS_21_PCREL_S2,
 	BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3,
 	BFD_RELOC_MIPS_19_PCREL_S2, BFD_RELOC_HI16_S_PCREL and
 	BFD_RELOC_LO16_PCREL.
 	* elfn32-mips.c: Likewise.
 	* elfxx-mips.c (MIPSR6_P): New define.
 	(mipsr6_exec_plt_entry): New array.
	(hi16_reloc_p): Add support for R_MIPS_PCHI16.
	(lo16_reloc_p): Add support for R_MIPS_PCLO16.
 	(aligned_pcrel_reloc_p): New function.
 	(mips_elf_relocation_needs_la25_stub): Add support for relocs:
 	R_MIPS_PC21_S2 and R_MIPS_PC26_S2.
 	(mips_elf_calculate_relocation): Add support for relocs:
 	R_MIPS_PC21_S2, R_MIPS_PC26_S2, R_MIPS_PC18_S3, R_MIPS_PC19_S2,
 	R_MIPS_PCHI16 and R_MIPS_PCLO16.
 	(_bfd_elf_mips_mach): Add support for mips32r6 and mips64r6.
	(mips_elf_add_lo16_rel_addend): Add support for R_MIPS_PCHI16.
 	(_bfd_mips_elf_check_relocs): Add support for relocs:
	R_MIPS_PC21_S2 and R_MIPS_PC26_S2.
 	(_bfd_mips_elf_relocate_section): Add a check for unaligned
 	pc relative relocs.
 	(_bfd_mips_elf_finish_dynamic_symbol): Add support for MIPS r6
 	plt entry.
 	(mips_set_isa_flags): Add support for mips32r6 and mips64r6.
 	(_bfd_mips_elf_print_private_bfd_data): Likewise.
 	(mips_32bit_flags_p): Add support for mips32r6.
 	* libbfd.h (bfd_reloc_code_real_names): Add entries for
 	BFD_RELOC_MIPS_21_PCREL_S2, BFD_RELOC_MIPS_26_PCREL_S2,
 	BFD_RELOC_MIPS_18_PCREL_S3 and BFD_RELOC_MIPS_19_PCREL_S2.
 	* reloc.c: Document relocs BFD_RELOC_MIPS_21_PCREL_S2,
 	BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3 and
 	BFD_RELOC_MIPS_19_PCREL_S2.

binutils/
 	* readelf.c (get_machine_flags): Add support for mips32r6 and
 	mips64r6.

elfcpp/
 	* mips.h (E_MIPS_ARCH_32R6, E_MIPS_ARCH_64R6): New enum constants.

gas/
 	* config/tc-mips.c (mips_nan2008): New static global.
	(mips_flag_nan2008): Removed.
	(LL_SC_FMT): New define.
	(COP12_FMT): Updated.
	(ISA_IS_R6): New define.
 	(ISA_HAS_64BIT_REGS): Add mips64r6.
 	(ISA_HAS_DROR): Likewise.
 	(ISA_HAS_64BIT_FPRS): Add mips32r6 and mips64r6.
 	(ISA_HAS_ROR): Likewise.
 	(ISA_HAS_ODD_SINGLE_FPR): Likewise.
 	(ISA_HAS_MXHC1): Likewise.
 	(hilo_interlocks): Likewise.
 	(md_longopts): Likewise.
	(ISA_HAS_LEGACY_NAN): New define.
 	(options): Add OPTION_MIPS32R6 and OPTION_MIPS64R6.
 	(mips_ase): Add field rem_rev.
 	(mips_ases): Updated to add which ISA an ASE was removed in.
 	(mips_isa_rev): Add support for mips32r6 and mips64r6.
 	(mips_check_isa_supports_ase): Add support to check if an ASE
 	has been removed in the specified MIPS ISA revision.
 	(validate_mips_insn): Skip '-' character.
	(macro_build): Likewise.
	(mips_check_options): Prevent R6 working with fp32, mips16,
	micromips, or branch relaxation.
	(file_mips_check_options): Set R6 floating point registers to
	64 bit.  Also deal with the nan2008 option.
 	(limited_pcrel_reloc_p): Add relocs: BFD_RELOC_MIPS_21_PCREL_S2,
 	BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3,
 	BFD_RELOC_MIPS_19_PCREL_S2, BFD_RELOC_HI16_S_PCREL and
 	BFD_RELOC_LO16_PCREL.
 	(operand_reg_mask): Add support for OP_SAME_RS_RT, OP_CHECK_PREV
	and OP_NON_ZERO_REG.
 	(match_check_prev_operand): New static function.
 	(match_same_rs_rt_operand): New static function.
	(match_non_zero_reg_operand): New static function.
 	(match_operand): Added entries for: OP_SAME_RS_RT, OP_CHECK_PREV
	and OP_NON_ZERO_REG.
 	(insns_between): Added case to deal with forbidden slots.
 	(append_insn): Added support for relocs: BFD_RELOC_MIPS_21_PCREL_S2
 	and BFD_RELOC_MIPS_26_PCREL_S2.
 	(match_insn): Add support for operands -A, -B, +' and +".  Also
 	skip '-' character.
 	(mips_percent_op): Add entries for %pcrel_hi and %pcrel_lo.
 	(md_parse_option): Add support for mips32r6 and mips64r6.  Also
	update the nan option handling.
 	(md_pcrel_from): Add cases for relocs: BFD_RELOC_MIPS_21_PCREL_S2,
 	BFD_RELOC_MIPS_26_PCREL_S2.
 	(mips_force_relocation): Prevent forced relaxation for MIPS r6.
 	(md_apply_fix): Add support for relocs: BFD_RELOC_MIPS_21_PCREL_S2,
 	BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3,
 	BFD_RELOC_MIPS_19_PCREL_S2, BFD_RELOC_HI16_S_PCREL and
 	BFD_RELOC_LO16_PCREL.
 	(s_mipsset): Add support for mips32r6 and mips64r6.
	(s_nan): Update to support the new nan2008 framework.
 	(tc_gen_reloc): Add relocs: BFD_RELOC_MIPS_21_PCREL_S2,
 	BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3,
 	BFD_RELOC_MIPS_19_PCREL_S2, BFD_RELOC_HI16_S_PCREL and
 	BFD_RELOC_LO16_PCREL.
	(mips_elf_final_processing): Updated to use the mips_nan2008.
 	(mips_cpu_info_table): Add entries for mips32r6 and mips64r6.
	(macro): Enable ldc2, sdc2, ll, lld, swc2, sc, scd, cache, pref
	macros for R6.
	(mips_fix_adjustable): Make PC relative R6 relocations relative
	to the symbol and not the section.
 	* configure.ac: Add support for mips32r6 and mips64r6.
 	* configure: Regenerate.
 	* doc/c-mips.texi: Document the -mips32r6 and -mips64r6 command line
 	options.
	* doc/as.texinfo: Likewise.

gas/testsuite/
	* gas/mips/24k-triple-stores-1.s: If testing for r6 prevent
	non-supported instructions from being tested.
	* gas/mips/24k-triple-stores-2.s: Likewise.
	* gas/mips/24k-triple-stores-3.s: Likewise.
	* gas/mips/24k-triple-stores-6.s: Likewise.
	* gas/mips/beq.s: Likewise.
	* gas/mips/eva.s: Likewise.
	* gas/mips/ld-zero-3.s: Likewise.
	* gas/mips/mips32-cp2.s: Likewise.
	* gas/mips/mips32.s: Likewise.
	* gas/mips/mips4.s: Likewise.
	* gas/mips/add.s: Don't test the add instructions if r6, and
	add padding.
	* gas/mips/add.d: Check for a triple dot not a nop at the end of the
	disassembly output.
	* gas/mips/micromips@add.d: Likewise.
	* gas/mips/mipsr6@24k-branch-delay-1.d: New file.
	* gas/mips/mipsr6@24k-triple-stores-1.d: New file.
	* gas/mips/mipsr6@24k-triple-stores-2-llsc.d: New file.
	* gas/mips/mipsr6@24k-triple-stores-2.d: New file.
	* gas/mips/mipsr6@24k-triple-stores-3.d: New file.
	* gas/mips/mipsr6@24k-triple-stores-6.d: New file.
	* gas/mips/mipsr6@add.d: New file.
	* gas/mips/mipsr6@attr-gnu-4-1-msingle-float.l: New file.
	* gas/mips/mipsr6@attr-gnu-4-1-msingle-float.s: New file.
	* gas/mips/mipsr6@attr-gnu-4-1-msoft-float.l: New file.
	* gas/mips/mipsr6@attr-gnu-4-1-msoft-float.s: New file.
	* gas/mips/mipsr6@attr-gnu-4-2-mdouble-float.l: New file.
	* gas/mips/mipsr6@attr-gnu-4-2-mdouble-float.s: New file.
	* gas/mips/mipsr6@beq.d: New file.
	* gas/mips/mipsr6@bge.d: New file.
	* gas/mips/mipsr6@bgeu.d: New file.
	* gas/mips/mipsr6@blt.d: New file.
	* gas/mips/mipsr6@bltu.d: New file.
	* gas/mips/mipsr6@branch-misc-1.d: New file.
	* gas/mips/mipsr6@branch-misc-2-64.d: New file.
	* gas/mips/mipsr6@branch-misc-2pic-64.d: New file.
	* gas/mips/mipsr6@branch-misc-4-64.d: New file.
	* gas/mips/mipsr6@cache.d: New file.
	* gas/mips/mipsr6@eva.d: New file.
	* gas/mips/mipsr6@jal-svr4pic-noreorder.d: New file.
	* gas/mips/mipsr6@jal-svr4pic.d: New file.
	* gas/mips/mipsr6@ld-zero-2.d: New file.
	* gas/mips/mipsr6@ld-zero-3.d: New file.
	* gas/mips/mipsr6@loc-swap-dis.d: New file.
	* gas/mips/mipsr6@mips32-cp2.d: New file.
	* gas/mips/mipsr6@mips32-imm.d: New file.
	* gas/mips/mipsr6@mips32.d: New file.
	* gas/mips/mipsr6@mips32r2.d: New file.
	* gas/mips/mipsr6@mips4-fp.d: New file.
	* gas/mips/mipsr6@mips4-fp.l: New file.
	* gas/mips/mipsr6@mips4-fp.s: New file.
	* gas/mips/mipsr6@mips4.d: New file.
	* gas/mips/mipsr6@mips5-fp.d: New file.
	* gas/mips/mipsr6@mips5-fp.l: New file.
	* gas/mips/mipsr6@mips5-fp.s: New file.
	* gas/mips/mipsr6@mips64.d: New file.
	* gas/mips/mipsr6@msa-branch.d: New file.
	* gas/mips/mipsr6@msa.d: New file.
	* gas/mips/mipsr6@pref.d: New file.
	* gas/mips/mipsr6@relax-swap3.d: New file.
	* gas/mips/r6-64-n32.d: New file.
	* gas/mips/r6-64-n64.d: New file.
	* gas/mips/r6-64-removed.l: New file.
	* gas/mips/r6-64-removed.s: New file.
	* gas/mips/r6-64.s: New file.
	* gas/mips/r6-attr-none-double.d: New file.
	* gas/mips/r6-n32.d: New file.
	* gas/mips/r6-n64.d: New file.
	* gas/mips/r6-removed.l: New file.
	* gas/mips/r6-removed.s: New file.
	* gas/mips/r6.d: New file.
	* gas/mips/r6.s: New file.
	* gas/mips/mipsr6@mips32-dsp.d: New file.
	* gas/mips/mipsr6@mips32-dspr2.d: New file.
	* gas/mips/mipsr6@mips32r2-ill.l: New file.
	* gas/mips/mipsr6@mips32r2-ill.s: New file.
	* gas/mips/cache.s: Add r6 instruction varients.
	* gas/mips/mips.exp: Add support for the mips32r6 and mips64r6
	architectures.  Also prevent non r6 supported tests from running.
	Finally, add in support for running the new r6 tests.
	(run_dump_test_arch): Add support for mipsr6 tests.
	(run_list_test_arch): Add support for using files of the
	form arch@testname.l .

include/elf/
 	* mips.h: Add relocs: R_MIPS_PC21_S2, R_MIPS_PC26_S2, R_MIPS_PC18_S3,
 	R_MIPS_PC19_S2, R_MIPS_PCHI16 and R_MIPS_PCLO16.
 	(E_MIPS_ARCH_32R6): New define.
 	(E_MIPS_ARCH_64R6): New define.

include/opcode/
 	* mips.h (mips_operand_type): Add new entries: OP_SAME_RS_RT,
 	OP_CHECK_PREV and OP_NON_ZERO_REG.  Add descriptions for the MIPS R6
	instruction arguments: -a, -b, -d, -s, -t, -u, -v, -w, -x, -y, -A, -B,
	 +I, +O, +R, +:, +\, +", +;
	(mips_check_prev_operand): New struct.
 	(INSN2_FORBIDDEN_SLOT): New define.
 	(INSN_ISA32R6): New define.
 	(INSN_ISA64R6): New define.
	(INSN_UPTO32R6): New define.
	(INSN_UPTO64R6): New define.
	(mips_isa_table): Add INSN_UPTO32R6 and INSN_UPTO64R6.
 	(ISA_MIPS32R6): New define.
 	(ISA_MIPS64R6): New define.
 	(CPU_MIPS32R6): New define.
 	(CPU_MIPS64R6): New define.
 	(cpu_is_member): Add cases for CPU_MIPS32R6, and CPU_MIPS64R6.

ld/
 	* ldmain.c (get_emulation): Add support for -mips32r6 and -mips64r6.

opcodes/
 	* mips-dis.c (mips_arch_choices): Add entries for mips32r6 and
 	mips64r6.
 	(parse_mips_dis_option): Allow MSA and virtualization support for
 	mips64r6.
 	(mips_print_arg_state): Add fields dest_regno and seen_dest.
 	(mips_seen_register): New function.
 	(print_insn_arg): Refactored code to use mips_seen_register
	function.  Add support for OP_SAME_RS_RT, OP_CHECK_PREV and
	OP_NON_ZERO_REG.  Changed OP_REPEAT_DEST_REG case to print out
	the register rather than aborting.
 	(print_insn_args): Add length argument.  Add code to correctly
	calculate the instruction address for pc relative instructions.
	(validate_insn_args): New static function.
 	(print_insn_mips): Prevent jalx disassembling for r6.  Use
	validate_insn_args.
	(print_insn_micromips): Use validate_insn_args.
	all the arguments are valid.
	* mips-formats.h (PREV_CHECK): New define.
 	* mips-opc.c (decode_mips_operand): Add support for -a, -b, -d, -s,
 	-t, -u, -v, -w, -x, -y, -A, -B, +I, +O, +R, +:, +\, +", +;
 	(RD_pc): New define.
 	(FS): New define.
 	(I37): New define.
 	(I69): New define.
 	(mips_builtin_opcodes): Add MIPS R6 instructions.  Exclude recoded
 	MIPS R6 instructions from MIPS R2 instructions.
2014-09-15 12:15:55 +01:00
Matthew Fortune
351cdf24d2 [MIPS] Implement O32 FPXX, FP64 and FP64A ABI extensions
Specification:
https://dmz-portal.mips.com/wiki/MIPS_O32_ABI_-_FR0_and_FR1_Interlinking

include/

	* elf/mips.h (PT_MIPS_ABIFLAGS, SHT_MIPS_ABIFLAGS): Define.
	(Val_GNU_MIPS_ABI_FP_OLD_64): Rename from Val_GNU_MIPS_ABI_FP_64.
	(Val_GNU_MIPS_ABI_FP_64): Redefine.
	(Val_GNU_MIPS_ABI_FP_XX): Define.
	(Elf_External_ABIFlags_v0, Elf_Internal_ABIFlags_v0): New structures.
	(AFL_REG_NONE, AFL_REG_32, AFL_REG_64, AFL_REG_128): Define.
	(AFL_ASE_DSP, AFL_ASE_DSPR2, AFL_ASE_EVA, AFL_ASE_MCU): Likewise.
	(AFL_ASE_MDMX, AFL_ASE_MIPS3D, AFL_ASE_MT, AFL_ASE_SMARTMIPS): Likewise.
	(AFL_ASE_VIRT, AFL_ASE_MSA, AFL_ASE_MIPS16): Likewise.
	(AFL_ASE_MICROMIPS, AFL_ASE_XPA): Likewise.
	(AFL_EXT_XLR, AFL_EXT_OCTEON2, AFL_EXT_OCTEONP): Likewise.
	(AFL_EXT_LOONGSON_3A, AFL_EXT_OCTEON, AFL_EXT_5900): Likewise.
	(AFL_EXT_4650, AFL_EXT_4010, AFL_EXT_4100, AFL_EXT_3900): Likewise.
	(AFL_EXT_10000, AFL_EXT_SB1, AFL_EXT_4111, AFL_EXT_4120): Likewise.
	(AFL_EXT_5400, AFL_EXT_5500, AFL_EXT_LOONGSON_2E): Likewise.
	(AFL_EXT_LOONGSON_2F): Likewise.
	(bfd_mips_elf_swap_abiflags_v0_in): Prototype.
	(bfd_mips_elf_swap_abiflags_v0_out): Likewise.
	(bfd_mips_isa_ext): Likewise.

bfd/

	* elfxx-mips.c (ABI_O32_P, MIPS_ELF_ABIFLAGS_SECTION_NAME_P): New macro.
	(mips_elf_obj_tdata): Add abiflags and abiflags_valid fields.
	(bfd_mips_elf_swap_abiflags_v0_in): New function.
	(bfd_mips_elf_swap_abiflags_v0_out): Likewise.
	(_bfd_mips_elf_section_from_shdr): Handle SHT_MIPS_ABIFLAGS.
	(_bfd_mips_elf_fake_sections): Likewise.
	(_bfd_mips_elf_always_size_sections): Handle .MIPS.abiflags.
	(_bfd_mips_elf_additional_program_headers): Account for new
	PT_MIPS_ABIFLAGS program header.
	(_bfd_mips_elf_modify_segment_map): Create PT_MIPS_ABIFLAGS segment and
	associate with .MIPS.abiflags.
	(_bfd_mips_elf_gc_mark_extra_sections): New function.
	(bfd_mips_isa_ext, update_mips_abiflags_isa): New static function.
	(infer_mips_abiflags): Likewise.
	(_bfd_mips_elf_final_link): Handle .MIPS.abiflags.
	(mips_32bit_flags_p): Moved higher.
	(mips_elf_merge_obj_attributes, _bfd_mips_fp_abi_string): Error
	checking for FP ABIs.
	(_bfd_mips_elf_merge_private_bfd_data): Restructure and add abiflags
	checks.  Check EF_MIPS_FP64 flag consistency.
	(print_mips_ases, print_mips_isa_ext): New static function.
	(print_mips_fp_abi_value, get_mips_reg_size): Likewise.
	(_bfd_mips_elf_print_private_bfd_data): Display abiflags data.
	(_bfd_mips_post_process_headers): Set EI_ABIVERSION = 3 for
	Val_GNU_MIPS_ABI_FP_64 or Val_GNU_MIPS_ABI_FP_64A.
	* elfxx-mips.h (_bfd_mips_elf_gc_mark_extra_sections): New prototype.
	* elf32-mips.c (elf_backend_gc_mark_extra_sections): Implement.
	* elfn32-mips.c (elf_backend_gc_mark_extra_sections): Implement.
	* elf64-mips.c (elf_backend_gc_mark_extra_sections): Implement.

binutils/

	* readelf.c (get_mips_segment_type): Display name for PT_MIPS_ABIFLAGS.
	(get_mips_section_type_name): Display name for SHT_MIPS_ABIFLAGS.
	(display_mips_gnu_attribute): Abstracted fp abi printing to...
	(print_mips_fp_abi_value): New static function. Handle new FP ABIs.
	(print_mips_ases, print_mips_isa_ext): New static functions.
	(get_mips_reg_size): Likewise.
	(process_mips_specific): Display abiflags data.

elfcpp/

	* elfcpp.h (PT_MIPS_ABIFLAGS): New program header type.

gas/

	* config/tc-mips.c (mips_flags_frag): New static global.
	(struct mips_set_options): Add oddspreg field.
	(file_mips_opts, mips_opts): Initialize oddspreg.
	(ISA_HAS_ODD_SINGLE_FPR): Add CPU argument and update for R5900 and
	Loongson-3a.
	(enum options, md_longopts, md_parse_option): Add -mfpxx, -modd-spreg
	and -mno-odd-spreg options.
	(md_begin): Create .MIPS.abiflags section.
	(fpabi_incompatible_with, fpabi_requires): New static function.
	(check_fpabi): Likewise.
	(mips_check_options): Handle fp=xx and oddspreg restrictions.
	(file_mips_check_options): Set oddspreg by default for fp=xx.
	(mips_oddfpreg_ok): Re-write function.
	(check_regno): Check odd numbered registers regardless of FPR size.
	For fp != 32 use as_bad instead of as_warn.
	(match_float_constant): Rewrite check regarding FP register width.  Add
	support for generating constants when MXHC1 is present.  Handle fp=xx
	to comply with the ABI.
	(macro): Update M_LI_DD similarly to match_float_constant.  Generate
	MTHC1 when available.  Check that correct code can be generated for
	fp=xx and fp=64 ABIs.
	(parse_code_option, s_mipsset): Add fp=xx, oddspreg and nooddspreg
	options.
	(mips_convert_ase_flags): New static function.
	(mips_elf_final_processing): Use fpabi == Val_GNU_MIPS_ABI_FP_OLD_64
	to determine when to add the EF_MIPS_FP64 flag.  Populate the
	.MIPS.abiflags section.
	(md_mips_end): Update .gnu_attribute based on command line and .module
	as applicable.  Use check_fpabi to ensure .gnu.attribute and command
	line/.module options are consistent.
	* doc/as.texinfo: Add missing -mgp64/-mfp64 options and document new
	-mfpxx, -modd-spreg and -mno-odd-spreg options.
	* doc/c-mips.texi: Document -mfpxx, -modd-spreg, -mno-odd-spreg,
	gnu_attribute values and FP ABIs.

ld/

	* emulparams/elf32bmip.sh: Add .MIPS.abiflags.
	* emulparams/elf32bmipn32-defs.sh: Likewise.
	* emulparams/elf64bmip-defs.sh: Likewise.

opcodes/

	* micromips-opc.c (COD, LCD) New macros.
	(cfc1, ctc1): Remove FP_S attribute.
	(dmfc1, mfc1, mfhc1): Add LCD attribute.
	(dmtc1, mtc1, mthc1): Add COD attribute.
	* mips-opc.c (cfc1, cftc1, ctc, cttc1): Remove FP_S attribute.

binutils/testsuite/

	* binutils-all/readelf.s: Account for .MIPS.abiflags and
	.gnu.attributes.
	* binutils-all/readelf.ss-tmips: Likewise.
	* binutils-all/strip-3.d: Likewise.

gas/testsuite/

	* gas/mips/attr-gnu-4-0.d: New.
	* gas/mips/attr-gnu-4-0.s: Likewise.
	* gas/mips/attr-gnu-4-1-mfp32.l: Likewise.
	* gas/mips/attr-gnu-4-1-mfp32.s: Likewise.
	* gas/mips/attr-gnu-4-1-mfp64.l: Likewise.
	* gas/mips/attr-gnu-4-1-mfp64.s: Likewise.
	* gas/mips/attr-gnu-4-1-mfpxx.s: Likewise.
	* gas/mips/attr-gnu-4-1-msingle-float.l: Likewise.
	* gas/mips/attr-gnu-4-1-msingle-float.s: Likewise.
	* gas/mips/attr-gnu-4-1-msoft-float.l: Likewise.
	* gas/mips/attr-gnu-4-1-msoft-float.s: Likewise.
	* gas/mips/attr-gnu-4-1.d: Likewise.
	* gas/mips/attr-gnu-4-1.s: Likewise.
	* gas/mips/attr-gnu-4-2-mdouble-float.l: Likewise.
	* gas/mips/attr-gnu-4-2-mdouble-float.s: Likewise.
	* gas/mips/attr-gnu-4-2-msoft-float.l: Likewise.
	* gas/mips/attr-gnu-4-2-msoft-float.s: Likewise.
	* gas/mips/attr-gnu-4-2.d: Likewise.
	* gas/mips/attr-gnu-4-2.s: Likewise.
	* gas/mips/attr-gnu-4-3-mhard-float.l: Likewise.
	* gas/mips/attr-gnu-4-3-mhard-float.s: Likewise.
	* gas/mips/attr-gnu-4-3.d: Likewise.
	* gas/mips/attr-gnu-4-3.s: Likewise.
	* gas/mips/attr-gnu-4-4.l: Likewise.
	* gas/mips/attr-gnu-4-4.s: Likewise.
	* gas/mips/attr-gnu-4-5-64.l: Likewise.
	* gas/mips/attr-gnu-4-5-64.s: Likewise.
	* gas/mips/attr-gnu-4-5.d: Likewise.
	* gas/mips/attr-gnu-4-5.l: Likewise.
	* gas/mips/attr-gnu-4-5.s: Likewise.
	* gas/mips/attr-gnu-4-6-64.l: Likewise.
	* gas/mips/attr-gnu-4-6-64.s: Likewise.
	* gas/mips/attr-gnu-4-6.d: Likewise.
	* gas/mips/attr-gnu-4-6.l: Likewise.
	* gas/mips/attr-gnu-4-6.s: Likewise.
	* gas/mips/attr-gnu-4-6-msingle-float.l: Likewise.
	* gas/mips/attr-gnu-4-6-msingle-float.s: Likewise.
	* gas/mips/attr-gnu-4-6-msoft-float.l: Likewise.
	* gas/mips/attr-gnu-4-6-msoft-float.s: Likewise.
	* gas/mips/attr-gnu-4-6-noodd.l: Likewise.
	* gas/mips/attr-gnu-4-6-noodd.s: Likewise.
	* gas/mips/attr-gnu-4-7-64.l: Likewise.
	* gas/mips/attr-gnu-4-7-64.s: Likewise.
	* gas/mips/attr-gnu-4-7-msingle-float.l: Likewise.
	* gas/mips/attr-gnu-4-7-msingle-float.s: Likewise.
	* gas/mips/attr-gnu-4-7-msoft-float.l: Likewise.
	* gas/mips/attr-gnu-4-7-msoft-float.s: Likewise.
	* gas/mips/attr-gnu-4-7-odd.l: Likewise.
	* gas/mips/attr-gnu-4-7-odd.s: Likewise.
	* gas/mips/attr-gnu-4-7.d: Likewise.
	* gas/mips/attr-gnu-4-7.l: Likewise.
	* gas/mips/attr-gnu-4-7.s: Likewise.
	* gas/mips/attr-none-double.d: Likewise.
	* gas/mips/attr-none-o32-fp64.d: Likewise.
	* gas/mips/attr-none-o32-fp64-nooddspreg.d
	* gas/mips/attr-none-o32-fpxx.d: Likewise.
	* gas/mips/attr-none-single-float.d: Likewise.
	* gas/mips/attr-none-soft-float.d: Likewise.
	* gas/mips/elf_arch_mips32r3.d: Likewise.
	* gas/mips/elf_arch_mips32r5.d: Likewise.
	* gas/mips/elf_arch_mips64r3.d: Likewise.
	* gas/mips/elf_arch_mips64r5.d: Likewise.
	* gas/mips/li-d.d: Likewise.
	* gas/mips/li-d.s: Likewise.
	* gas/mips/module-check-warn.l: Likewise.
	* gas/mips/module-check-warn.s: Likewise.
	* gas/mips/module-check.d: Likewise.
	* gas/mips/module-check.s: Likewise.
	* gas/mips/module-mfp32.d: Likewise.
	* gas/mips/module-mfp32.s: Likewise.
	* gas/mips/module-mfp64.d: Likewise.
	* gas/mips/module-mfp64.s: Likewise.
	* gas/mips/module-mfp64-noodd.d: Likewise.
	* gas/mips/module-mfp64-noodd.s: Likewise.
	* gas/mips/module-mfpxx.d: Likewise.
	* gas/mips/module-mfpxx.s: Likewise.
	* gas/mips/module-msingle-float.d: Likewise.
	* gas/mips/module-msingle-float.s: Likewise.
	* gas/mips/module-msoft-float.d: Likewise.
	* gas/mips/module-msoft-float.s: Likewise.
	* gas/mips/module-set-mfpxx.d: Likewise.
	* gas/mips/module-set-mfpxx.s: Likewise.
	* gas/mips/fpxx-oddfpreg.d: Likewise.
	* gas/mips/fpxx-oddfpreg.l: Likewise.
	* gas/mips/fpxx-oddfpreg.s: Likewise.
	* gas/mips/no-odd-spreg.d: Likewise.
	* gas/mips/odd-spreg.d: Likewise.
	* gas/elf/section2.e-mips: Adjust expected output.
	* gas/mips/attr-gnu-abi-fp-1.d: Likewise.
	* gas/mips/attr-gnu-abi-msa-1.d: Likewise.
	* gas/mips/call-nonpic-1.d: Likewise.
	* gas/mips/elf_arch_mips1.d: Likewise.
	* gas/mips/elf_arch_mips2.d: Likewise.
	* gas/mips/elf_arch_mips3.d: Likewise.
	* gas/mips/elf_arch_mips32.d: Likewise.
	* gas/mips/elf_arch_mips32r2.d: Likewise.
	* gas/mips/elf_arch_mips4.d: Likewise.
	* gas/mips/elf_arch_mips5.d: Likewise.
	* gas/mips/elf_arch_mips64.d: Likewise.
	* gas/mips/elf_arch_mips64r2.d: Likewise.
	* gas/mips/elf_ase_micromips-2.d: Likewise.
	* gas/mips/elf_ase_micromips.d: Likewise.
	* gas/mips/elf_ase_mips16-2.d: Likewise.
	* gas/mips/elf_ase_mips16.d: Likewise.
	* gas/mips/module-defer-warn1.d: Likewise.
	* gas/mips/module-override.d: Likewise.
	* gas/mips/n32-consec.d: Likewise.
	* gas/mips/nan-2008-1.d: Likewise.
	* gas/mips/nan-2008-2.d: Likewise.
	* gas/mips/nan-2008-3.d: Likewise.
	* gas/mips/nan-2008-4.d: Likewise.
	* gas/mips/nan-legacy-1.d: Likewise.
	* gas/mips/nan-legacy-2.d: Likewise.
	* gas/mips/nan-legacy-3.d: Likewise.
	* gas/mips/nan-legacy-4.d: Likewise.
	* gas/mips/nan-legacy-5.d: Likewise.
	* gas/mips/tmips16-e.d: Likewise.
	* gas/mips/tmips16-f.d: Likewise.
	* gas/mips/tmipsel16-e.d: Likewise.
	* gas/mips/tmipsel16-f.d: Likewise.
	* gas/testsuite/gas/mips/mips.exp: Add new tests.

ld/testsuite/

	* ld-mips-elf/abiflags-strip1-ph.d: New.
	* ld-mips-elf/abiflags-strip2-ph.d: Likewise.
	* ld-mips-elf/abiflags-strip3-ph.d: Likewise.
	* ld-mips-elf/abiflags-strip4-ph.d: Likewise.
	* ld-mips-elf/abiflags-strip5-ph.d: Likewise.
	* ld-mips-elf/abiflags-strip6-ph.d: Likewise.
	* ld-mips-elf/abiflags-strip7-ph.d: Likewise.
	* ld-mips-elf/abiflags-strip8-ph.d: Likewise.
	* ld-mips-elf/abiflags-strip9-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-0-n32-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-0-n64-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-0-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-06.d: Likewise.
	* ld-mips-elf/attr-gnu-4-07.d: Likewise.
	* ld-mips-elf/attr-gnu-4-08.d: Likewise.
	* ld-mips-elf/attr-gnu-4-1-n32-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-1-n64-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-1-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-16.d: Likewise.
	* ld-mips-elf/attr-gnu-4-17.d: Likewise.
	* ld-mips-elf/attr-gnu-4-18.d: Likewise.
	* ld-mips-elf/attr-gnu-4-2-n32-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-2-n64-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-2-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-26.d: Likewise.
	* ld-mips-elf/attr-gnu-4-27.d: Likewise.
	* ld-mips-elf/attr-gnu-4-28.d: Likewise.
	* ld-mips-elf/attr-gnu-4-3-n32-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-3-n64-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-3-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-36.d: Likewise.
	* ld-mips-elf/attr-gnu-4-37.d: Likewise.
	* ld-mips-elf/attr-gnu-4-38.d: Likewise.
	* ld-mips-elf/attr-gnu-4-4-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-46.d: Likewise.
	* ld-mips-elf/attr-gnu-4-47.d: Likewise.
	* ld-mips-elf/attr-gnu-4-48.d: Likewise.
	* ld-mips-elf/attr-gnu-4-5-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-50.d: Likewise.
	* ld-mips-elf/attr-gnu-4-52.d: Likewise.
	* ld-mips-elf/attr-gnu-4-53.d: Likewise.
	* ld-mips-elf/attr-gnu-4-54.d: Likewise.
	* ld-mips-elf/attr-gnu-4-55.d: Likewise.
	* ld-mips-elf/attr-gnu-4-56.d: Likewise.
	* ld-mips-elf/attr-gnu-4-57.d: Likewise.
	* ld-mips-elf/attr-gnu-4-58.d: Likewise.
	* ld-mips-elf/attr-gnu-4-6-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-6.s: Likewise.
	* ld-mips-elf/attr-gnu-4-60.d: Likewise.
	* ld-mips-elf/attr-gnu-4-61.d: Likewise.
	* ld-mips-elf/attr-gnu-4-62.d: Likewise.
	* ld-mips-elf/attr-gnu-4-63.d: Likewise.
	* ld-mips-elf/attr-gnu-4-64.d: Likewise.
	* ld-mips-elf/attr-gnu-4-65.d: Likewise.
	* ld-mips-elf/attr-gnu-4-66.d: Likewise.
	* ld-mips-elf/attr-gnu-4-67.d: Likewise.
	* ld-mips-elf/attr-gnu-4-68.d: Likewise.
	* ld-mips-elf/attr-gnu-4-7-ph.d: Likewise.
	* ld-mips-elf/attr-gnu-4-7.s: Likewise.
	* ld-mips-elf/attr-gnu-4-70.d: Likewise.
	* ld-mips-elf/attr-gnu-4-71.d: Likewise.
	* ld-mips-elf/attr-gnu-4-72.d: Likewise.
	* ld-mips-elf/attr-gnu-4-73.d: Likewise.
	* ld-mips-elf/attr-gnu-4-74.d: Likewise.
	* ld-mips-elf/attr-gnu-4-75.d: Likewise.
	* ld-mips-elf/attr-gnu-4-76.d: Likewise.
	* ld-mips-elf/attr-gnu-4-77.d: Likewise.
	* ld-mips-elf/attr-gnu-4-78.d: Likewise.
	* ld-mips-elf/attr-gnu-4-8.s: Likewise.
	* ld-mips-elf/attr-gnu-4-81.d: Likewise.
	* ld-mips-elf/empty.s: Likewise.
	* ld-mips-elf/attr-gnu-4-00.d: Adjust expected output.
	* ld-mips-elf/attr-gnu-4-01.d: Likewise.
	* ld-mips-elf/attr-gnu-4-02.d: Likewise.
	* ld-mips-elf/attr-gnu-4-03.d: Likewise.
	* ld-mips-elf/attr-gnu-4-04.d: Likewise.
	* ld-mips-elf/attr-gnu-4-05.d: Likewise.
	* ld-mips-elf/attr-gnu-4-10.d: Likewise.
	* ld-mips-elf/attr-gnu-4-11.d: Likewise.
	* ld-mips-elf/attr-gnu-4-14.d: Likewise.
	* ld-mips-elf/attr-gnu-4-15.d: Likewise.
	* ld-mips-elf/attr-gnu-4-2.s: Likewise.
	* ld-mips-elf/attr-gnu-4-20.d: Likewise.
	* ld-mips-elf/attr-gnu-4-22.d: Likewise.
	* ld-mips-elf/attr-gnu-4-24.d: Likewise.
	* ld-mips-elf/attr-gnu-4-25.d: Likewise.
	* ld-mips-elf/attr-gnu-4-3.s: Likewise.
	* ld-mips-elf/attr-gnu-4-30.d: Likewise.
	* ld-mips-elf/attr-gnu-4-33.d: Likewise.
	* ld-mips-elf/attr-gnu-4-34.d: Likewise.
	* ld-mips-elf/attr-gnu-4-35.d: Likewise.
	* ld-mips-elf/attr-gnu-4-40.d: Likewise.
	* ld-mips-elf/attr-gnu-4-41.d: Likewise.
	* ld-mips-elf/attr-gnu-4-42.d: Likewise.
	* ld-mips-elf/attr-gnu-4-43.d: Likewise.
	* ld-mips-elf/attr-gnu-4-44.d: Likewise.
	* ld-mips-elf/attr-gnu-4-45.d: Likewise.
	* ld-mips-elf/attr-gnu-4-5.s: Likewise.
	* ld-mips-elf/attr-gnu-4-51.d: Likewise.
	* ld-mips-elf/attr-gnu-8-00.d: Likewise.
	* ld-mips-elf/attr-gnu-8-01.d: Likewise.
	* ld-mips-elf/attr-gnu-8-02.d: Likewise.
	* ld-mips-elf/attr-gnu-8-10.d: Likewise.
	* ld-mips-elf/attr-gnu-8-11.d: Likewise.
	* ld-mips-elf/attr-gnu-8-20.d: Likewise.
	* ld-mips-elf/attr-gnu-8-22.d: Likewise.
	* ld-mips-elf/jalx-2.dd: Likewise.
	* ld-mips-elf/mips16-pic-1.gd: Likewise.
	* ld-mips-elf/mips16-pic-2.gd: Likewise.
	* ld-mips-elf/mips16-pic-3.gd: Likewise.
	* ld-mips-elf/mips16-pic-4a.gd: Likewise.
	* ld-mips-elf/multi-got-no-shared.d: Likewise.
	* ld-mips-elf/nan-2008.d: Likewise.
	* ld-mips-elf/nan-legacy.d: Rework test.
	* ld-mips-elf/pic-and-nonpic-3a.gd: Likewise.
	* ld-mips-elf/pic-and-nonpic-3b.gd: Likewise.
	* ld-mips-elf/pic-and-nonpic-5b.gd: Likewise.
	* ld-mips-elf/pic-and-nonpic-6.ld: Likewise.
	* ld-mips-elf/rel32-n32.d: Likewise.
	* ld-mips-elf/rel32-o32.d: Likewise.
	* ld-mips-elf/rel64.d: Likewise.
	* ld-mips-elf/tls-multi-got-1.r: Likewise.
	* ld-elf/group.ld: Discard .MIPS.abiflags and .gnu.attributes.
	* ld-elf/orphan-region.ld: Likewise.
	* ld-elf/orphan.ld: Likewise.
	* ld-mips-elf/compressed-plt-1.ld: Likewise.
	* ld-mips-elf/dyn-sec64.ld: Likewise.
	* ld-mips-elf/got-dump-1.ld: Likewise.
	* ld-mips-elf/got-dump-2.ld: Likewise.
	* ld-mips-elf/got-page-1.ld: Likewise.
	* ld-mips-elf/mips-dyn.ld: Likewise.
	* ld-mips-elf/mips-lib.ld: Likewise.
	* ld-mips-elf/pic-and-nonpic-3a.ld: Likewise.
	* ld-mips-elf/pic-and-nonpic-3b.ld: Likewise.
	* ld-mips-elf/pic-and-nonpic-4b.ld: Likewise.
	* ld-mips-elf/pic-and-nonpic-5b.ld: Likewise.
	* ld-mips-elf/region1.t: Likewise.
	* ld-mips-elf/stub-dynsym-1.ld: Likewise.
	* ld-mips-elf/tls-hidden3.ld: Likewise.
	* ld-mips-elf/vxworks1.ld: Likewise.
	* ld-scripts/overlay-size.t: Likewise.
	* ld-mips-elf/elf-rel-got-n32-embed.d: Remove .MIPS.abiflags from
	objects.
	* ld-mips-elf/elf-rel-got-n32.d: Likewise.
	* ld-mips-elf/elf-rel-got-n64-embed.d: Likewise.
	* ld-mips-elf/elf-rel-got-n64-linux.d: Likewise.
	* ld-mips-elf/elf-rel-got-n64.d: Likewise.
	* ld-mips-elf/elf-rel-xgot-n32.d: Likewise.
	* ld-mips-elf/elf-rel-xgot-n32-embed.d: Likewise.
	* ld-mips-elf/elf-rel-xgot-n64.d: Likewise.
	* ld-mips-elf/elf-rel-xgot-n64-linux.d: Likewise.
	* ld-mips-elf/elf-rel-xgot-n64-embed.d: Likewise.
	* ld-mips-elf/mips-elf.exp: Add new tests.
2014-07-29 11:27:59 +01:00
Alan Modra
6d00b59031 bfd target vector rationalisation
This renames the bfd targets to <cpu>_<format>_<other>_<endian>_vec.
So for example, bfd_elf32_ntradlittlemips_vec becomes
mips_elf32_ntrad_le_vec and hp300bsd_vec becomes m68k_aout_hp300bsd_vec.

bfd/
	* aix386-core.c, * aout-adobe.c, * aout-arm.c, * aout-ns32k.c,
	* aout-sparcle.c, * aout0.c, * aoutx.h, * armnetbsd.c, * bout.c,
	* cf-i386lynx.c, * cf-sparclynx.c, * cisco-core.c, * coff-alpha.c,
	* coff-apollo.c, * coff-arm.c, * coff-aux.c, * coff-go32.c,
	* coff-h8300.c, * coff-h8500.c, * coff-i386.c, * coff-i860.c,
	* coff-i960.c, * coff-m68k.c, * coff-m88k.c, * coff-mips.c,
	* coff-rs6000.c, * coff-sh.c, * coff-sparc.c, * coff-stgo32.c,
	* coff-svm68k.c, * coff-tic80.c, * coff-u68k.c, * coff-w65.c,
	* coff-we32k.c, * coff-x86_64.c, * coff-z80.c, * coff-z8k.c,
	* coff64-rs6000.c, * config.bfd, * configure.com, * configure.in,
	* demo64.c, * elf-m10200.c, * elf-m10300.c, * elf32-am33lin.c,
	* elf32-arc.c, * elf32-arm.c, * elf32-avr.c, * elf32-bfin.c,
	* elf32-cr16.c, * elf32-cr16c.c, * elf32-cris.c, * elf32-crx.c,
	* elf32-d10v.c, * elf32-d30v.c, * elf32-dlx.c, * elf32-epiphany.c,
	* elf32-fr30.c, * elf32-frv.c, * elf32-gen.c, * elf32-h8300.c,
	* elf32-hppa.c, * elf32-i370.c, * elf32-i386.c, * elf32-i860.c,
	* elf32-i960.c, * elf32-ip2k.c, * elf32-iq2000.c, * elf32-lm32.c,
	* elf32-m32c.c, * elf32-m32r.c, * elf32-m68hc11.c, * elf32-m68hc12.c,
	* elf32-m68k.c, * elf32-m88k.c, * elf32-mcore.c, * elf32-mep.c,
	* elf32-metag.c, * elf32-microblaze.c, * elf32-mips.c, * elf32-moxie.c,
	* elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c, * elf32-nios2.c,
	* elf32-or1k.c, * elf32-pj.c, * elf32-ppc.c, * elf32-rl78.c,
	* elf32-rx.c, * elf32-s390.c, * elf32-score.c, * elf32-sh-symbian.c,
	* elf32-sh.c, * elf32-sh64.c, * elf32-sparc.c, * elf32-spu.c,
	* elf32-tic6x.c, * elf32-tilegx.c, * elf32-tilepro.c, * elf32-v850.c,
	* elf32-vax.c, * elf32-xc16x.c, * elf32-xgate.c, * elf32-xstormy16.c,
	* elf32-xtensa.c, * elf64-alpha.c, * elf64-gen.c, * elf64-hppa.c,
	* elf64-ia64-vms.c, * elf64-mips.c, * elf64-mmix.c, * elf64-ppc.c,
	* elf64-s390.c, * elf64-sh64.c, * elf64-sparc.c, * elf64-tilegx.c,
	* elf64-x86-64.c, * elfn32-mips.c, * elfnn-aarch64.c, * elfnn-ia64.c,
	* epoc-pe-arm.c, * epoc-pei-arm.c, * hp300bsd.c, * hp300hpux.c,
	* hppabsd-core.c, * hpux-core.c, * i386aout.c, * i386bsd.c,
	* i386dynix.c, * i386freebsd.c, * i386linux.c, * i386lynx.c,
	* i386mach3.c, * i386msdos.c, * i386netbsd.c, * i386os9k.c,
	* irix-core.c, * m68k4knetbsd.c, * m68klinux.c, * m68knetbsd.c,
	* m88kmach3.c, * m88kopenbsd.c, * mach-o-i386.c, * mach-o-x86-64.c,
	* makefile.vms, * mipsbsd.c, * mmo.c, * netbsd-core.c, * newsos3.c,
	* nlm32-alpha.c, * nlm32-i386.c, * nlm32-ppc.c, * nlm32-sparc.c,
	* ns32knetbsd.c, * osf-core.c, * pc532-mach.c, * pe-arm-wince.c,
	* pe-arm.c, * pe-i386.c, * pe-mcore.c, * pe-mips.c, * pe-ppc.c,
	* pe-sh.c, * pe-x86_64.c, * pei-arm-wince.c, * pei-arm.c,
	* pei-i386.c, * pei-ia64.c, * pei-mcore.c, * pei-mips.c, * pei-ppc.c,
	* pei-sh.c, * pei-x86_64.c, * ppcboot.c, * ptrace-core.c, * riscix.c,
	* sco5-core.c, * som.c, * sparclinux.c, * sparclynx.c,
	* sparcnetbsd.c, * sunos.c, * targets.c, * trad-core.c,
	* vax1knetbsd.c, * vaxbsd.c, * vaxnetbsd.c, * versados.c,
	* vms-alpha.c, * vms-lib.c: Rename bfd targets to
	<cpu>_<format>_<other>_<endian>_vec.  Adjust associated MY macros
	on aout targets.
	* configure: Regenerate.
binutils/
	* emul_aix.c: Update bfd target vector naming.
	* testsuite/binutils-all/objcopy.exp: Likewise.
ld/
	* emultempl/metagelf.em: Update bfd target vector naming.
	* emultempl/nios2elf.em: Likewise.
	* emultempl/spuelf.em: Likewise.
	* emultempl/tic6xdsbt.em: Likewise.
2014-05-02 20:09:40 +09:30
Alan Modra
4b95cf5c0c Update copyright years 2014-03-05 22:16:15 +10:30
H.J. Lu
782450358d Default elf_backend_post_process_headers to set OSABI
* elf-bfd.h (_bfd_elf_set_osabi): Renamed to ...
	(_bfd_elf_post_process_headers): This.
	* elf.c (_bfd_elf_compute_section_file_positions): Always
	call elf_backend_post_process_headers.
	(_bfd_elf_set_osabi): Renamed to ...
	(_bfd_elf_post_process_headers): This.
	* elf32-hppa.c (elf_backend_post_process_headers): Removed.
	* elf32-i370.c (elf_backend_post_process_headers): Likewise.
	* elf32-msp430.c (elf_backend_post_process_headers): Likewise.
	* elf32-ppc.c (elf_backend_post_process_headers): Likewise.
	* elf32-sparc.c (elf_backend_post_process_headers): Likewise.
	* elf64-hppa.c (elf_backend_post_process_headers): Likewise.
	* elf64-ppc.c (elf_backend_post_process_headers): Likewise.
	* elf64-sparc.c (elf_backend_post_process_headers): Likewise.
	* elf64-x86-64.c (elf_backend_post_process_headers): Likewise.
	*  (elf_backend_post_process_headers): Likewise.
	*  (elf_backend_post_process_headers): Likewise.
	* elf32-i386.c (elf_backend_post_process_headers): Don't
	define as _bfd_elf_set_osabi.
	(elf_i386_fbsd_post_process_headers): Updated.
	* elf32-mips.c (elf_fbsd_post_process_headers): Removed.
	(elf_backend_post_process_headers): Likewise.
	* elf32-tic6x.c (elf32_tic6x_set_osabi): Removed.
	(elf_backend_post_process_headers): Likewise.
	* elf64-mips.c (elf_fbsd_post_process_headers): Removed.
	(elf_backend_post_process_headers): Likewise.
	* elfn32-mips.c (elf_fbsd_post_process_headers): Removed.
	(elf_backend_post_process_headers): Likewise.
	* elfnn-aarch64.c (elfNN_aarch64_post_process_headers): Updated.
	* elfxx-target.h (elf_backend_post_process_headers): Default
	to _bfd_elf_post_process_headers.
2013-12-17 13:41:17 -08:00
Catherine Moore
067ec077d7 2013-05-30 Paul Brook <paul@codesourcery.com>
bfd/
	* bfd-in2.h: Regenerate.
	* elf32-mips.c (elf_mips_eh_howto): New.
	(bfd_elf32_bfd_reloc_type_lookup ): Support BFD_RELOC_MIPS_EH.
	(bfd_elf32_bfd_reloc_name_lookup): Likewise.
	(mips_elf32_rtype_to_howto): Support R_MIPS_EH.
	* elf64-mips.c (elf_mips_eh_howto): New.
	(bfd_elf64_bfd_reloc_type_lookup): Support BFD_RELOC_MIPS_EH.
	(bfd_elf64_bfd_reloc_name_lookup): Likewise.
	(mips_elf64_rtype_to_howto): Support R_MIPS_EH.
	* libbfd.h: Regenerate.
	* reloc.c (BFD_RELOC_MIPS_EH): New.

	gas/
	* config/tc-mips.c (md_apply_fix): Support BFD_RELOC_MIPS_EH.

	include/elf
	* mips.h (R_MIPS_EH): New.
2013-05-30 20:27:21 +00:00
Catherine Moore
b47468a6db 2013-05-06 Paul Brook <paul@codesourcery.com>
include/elf/
        * mips.h (R_MIPS_PC32): Update comment.

        * elf64-mips.c (elf_mips_gnu_pcrel32): New.
        (bfd_elf64_bfd_reloc_type_lookup, bfd_elf64_bfd_reloc_name_lookup,
        mips_elf64_rtype_to_howto): Handle R_MIPS_PC32.
        * elfn32-mips.c (elf_mips_gnu_pcrel32): New.
        (bfd_elfn32_bfd_reloc_type_lookup, bfd_elfn32_bfd_reloc_name_lookup,
        mips_elfn32_rtype_to_howto): Handle R_MIPS_PC32.

2013-05-06  Paul Brook  <paul@codesourcery.com>
	    Catherine Moore  <clm@codesourcery.com>

        gas/
        * config/tc-mips.c (md_pcrel_from): Handle BFD_RELOC_32_PCREL.
        (limited_pcrel_reloc_p): Likewise.
	(md_apply_fix): Likewise.
	(tc_gen_reloc): Likewise.
2013-05-06 15:25:45 +00:00
Richard Sandiford
d150b1a28f bfd/
* elf32-mips.c (elf_mips_copy_howto, elf_mips_jump_slot_howto):
	Use _bfd_mips_elf_generic_reloc instead of bfd_elf_generic_reloc.
	* elfn32-mips.c: Likewise.
	* elf64-mips.c: Likewise.
2013-05-04 09:33:08 +00:00
Alan Modra
228e534f16 * elf-bfd.h (struct core_elf_obj_tdata): New.
(struct elf_obj_tdata): Delete core_signal, core_pid, core_lwpid,
	core_program, and core_command.  Add "core".
	* elf.c (bfd_elf_mkcorefile): Allocate "core" struct.
	Update all refs to tdata core fields.
	* elf32-am33lin.c, * elf32-arm.c, * elf32-cris.c, * elf32-frv.c,
	* elf32-hppa.c, * elf32-i386.c, * elf32-m68k.c, * elf32-mips.c,
	* elf32-nios2.c, * elf32-ppc.c, * elf32-s390.c, * elf32-score.c,
	* elf32-score7.c, * elf32-sh.c, * elf32-sparc.c, * elf32-tilegx.c,
	* elf32-tilepro.c, * elf32-xtensa.c, * elf64-aarch64.c,
	* elf64-hppa.c, * elf64-mips.c, * elf64-ppc.c, * elf64-tilegx.c,
	* elf64-x86-64.c, * elfcore.h, * elfn32-mips.c: Update all refs
	to tdata core fields.
2013-02-21 03:02:30 +00:00
Maciej W. Rozycki
5b175e562b * elf64-mips.c (micromips_elf64_howto_table_rel): Add
R_MICROMIPS_SCN_DISP and R_MICROMIPS_JALR.
	(micromips_elf64_howto_table_rela): Likewise.
	(micromips_reloc_map): Add BFD_RELOC_MICROMIPS_JALR.
	* elfn32-mips.c (elf_micromips_howto_table_rel): Add
	R_MICROMIPS_SCN_DISP and R_MICROMIPS_JALR.
	(elf_micromips_howto_table_rela): Likewise.
	(micromips_reloc_map): Add BFD_RELOC_MICROMIPS_JALR.
2013-02-18 23:20:45 +00:00
Maciej W. Rozycki
6ae68ba390 bfd/
* elf32-mips.c (bfd_elf32_mkobject): New macro.
	* elf64-mips.c (bfd_elf64_mkobject): Likewise.
	* elfn32-mips.c (bfd_elf32_mkobject): Likewise.
	* elfxx-mips.h (_bfd_mips_elf_mkobject): New prototype.
	* elfxx-mips.c (mips_elf_obj_tdata): New struct.
	(mips_elf_tdata): New macro.
	(_bfd_mips_elf_mkobject): New function.
	(mips_elf_merge_obj_attributes): Report the originating input BFD
	on attribute conflicts.

	ld/testsuite/
	* ld-mips-elf/attr-gnu-4-12.d: Update the warning message.
	* ld-mips-elf/attr-gnu-4-13.d: Likewise.
	* ld-mips-elf/attr-gnu-4-14.d: Likewise.
	* ld-mips-elf/attr-gnu-4-15.d: Likewise.
	* ld-mips-elf/attr-gnu-4-21.d: Likewise.
	* ld-mips-elf/attr-gnu-4-23.d: Likewise.
	* ld-mips-elf/attr-gnu-4-24.d: Likewise.
	* ld-mips-elf/attr-gnu-4-25.d: Likewise.
	* ld-mips-elf/attr-gnu-4-31.d: Likewise.
	* ld-mips-elf/attr-gnu-4-32.d: Likewise.
	* ld-mips-elf/attr-gnu-4-34.d: Likewise.
	* ld-mips-elf/attr-gnu-4-35.d: Likewise.
	* ld-mips-elf/attr-gnu-4-41.d: Likewise.
	* ld-mips-elf/attr-gnu-4-42.d: Likewise.
	* ld-mips-elf/attr-gnu-4-43.d: Likewise.
	* ld-mips-elf/attr-gnu-4-45.d: Likewise.
	* ld-mips-elf/attr-gnu-4-51.d: Likewise.
2012-12-03 16:17:48 +00:00
Maciej W. Rozycki
1a6c3ca234 * elf64-mips.c (mips16_elf64_howto_table_rela): Correct src_mask
field initializers throughout.
	* elfn32-mips.c (elf_mips16_howto_table_rela): Likewise.
2012-08-03 22:17:19 +00:00
Maciej W. Rozycki
a44acb1ed2 * elf64-mips.c (elf_backend_got_header_size): Correct definition.
* elfxx-mips.c (_bfd_mips_elf_adjust_dynamic_symbol): Use the ELF
	backend's GOT header size instead of hardcoding it.
2012-05-19 19:30:45 +00:00
Maciej W. Rozycki
b0189df033 * elf64-mips.c (mips_elf64_be_swap_reloc_out): Also make sure
the third reloc offset is the same as the first.
2012-05-19 19:13:56 +00:00
Chung-Lin Tang
d0f1368214 2011-12-19 Chung-Lin Tang <cltang@codesourcery.com>
gas/
	* config/tc-mips.c (mips_pseudo_table): Add tprelword/tpreldword
	entries.
	(mips16_percent_op): Add MIPS16 TLS relocation ops.
	(md_apply_fix): Add BFD_RELOC_MIPS16_TLS_* switch cases.
	(s_tls_rel_directive): Rename from s_dtprel_internal(). Abstract out
	directive string and reloc type as function parameters. Update
	comments.
	(s_dtprelword,s_dtpreldword): Change to use s_tls_rel_directive().
	(s_tprelword,s_tpreldword): New functions.

	include/
	* elf/mips.h (elf_mips_reloc_type): Add R_MIPS16_TLS_* entries.

	bfd/
	* reloc.c (BFD_RELOC_MIPS16_TLS_GD,BFD_RELOC_MIPS16_TLS_LDM,
	BFD_RELOC_MIPS16_TLS_DTPREL_HI16,BFD_RELOC_MIPS16_TLS_DTPREL_LO16,
	BFD_RELOC_MIPS16_TLS_GOTTPREL,BFD_RELOC_MIPS16_TLS_TPREL_HI16,
	BFD_RELOC_MIPS16_TLS_TPREL_LO16): New relocations for MIPS16 TLS.
	* bfd-in2.h (bfd_reloc_code_real): Regenerate.
	* libbfd.h (bfd_reloc_code_real_names): Regenerate.
	* elf32-mips.c (elf_mips16_howto_table_rel): Add R_MIPS16_TLS_*
	entries.
	(mips16_reloc_map): Add BFD_RELOC_MIPS16_TLS_* to R_MIPS16_TLS_*
	mappings.
	* elfn32-mips.c (elf_mips16_howto_table_rel,
	elf_mips16_howto_table_rela): Add R_MIPS16_TLS_* entries.
	(mips16_reloc_map): Add BFD_RELOC_MIPS16_TLS_* to R_MIPS16_TLS_*
	mappings.
	* elf64-mips.c (mips16_elf64_howto_table_rel,
	mips16_elf64_howto_table_rela): Add R_MIPS16_TLS_* entries.
	(mips16_reloc_map): Add BFD_RELOC_MIPS16_TLS_* to R_MIPS16_TLS_*
	mappings.
	* elfxx-mips.c (TLS_RELOC_P,mips16_reloc_p,
	_bfd_mips_elf_check_relocs): Add cases for R_MIPS16_TLS_* relocations.
	(tls_gd_reloc_p): Add R_MIPS16_TLS_GD case.
	(tls_ldm_reloc_p): Add R_MIPS16_TLS_LDM case.
	(tls_gottprel_reloc_p): Add R_MIPS16_TLS_GOTTPREL case.
	(mips_elf_calculate_relocation): Add cases for R_MIPS16_TLS_*,
	R_MIPS_TLS_DTPREL32/64, and R_MIPS_TLS_TPREL32/64 relocations.
2011-12-19 07:58:02 +00:00
Maciej W. Rozycki
72c4ab07b7 * elf64-mips.c (mips_elf64_howto_table_rela): Set src_mask to
zero throughout.
	(mips16_elf64_howto_table_rela): Likewise.
	(micromips_elf64_howto_table_rela): Likewise.
	* elfn32-mips.c (elf_mips_howto_table_rela): Likewise.
	(elf_mips16_howto_table_rela): Likewise.
	(elf_micromips_howto_table_rela): Likewise.
2011-11-16 12:12:22 +00:00