Commit graph

12900 commits

Author SHA1 Message Date
GDB Administrator
8e8fe55a60 Automatic date update in version.in 2016-08-07 00:00:11 +00:00
GDB Administrator
d6d4df4a93 Automatic date update in version.in 2016-08-06 00:00:20 +00:00
GDB Administrator
cca8e7e482 Automatic date update in version.in 2016-08-05 00:00:22 +00:00
Thomas Preud'homme
54ddd295b5 2016-08-04 Thomas Preud'homme <thomas.preudhomme@arm.com>
bfd/
	* bfd-in.h (bfd_elf32_arm_set_target_relocs): Add one parameter.
	* bfd-in2.h: Regenerate.
	* elf32-arm.c (struct elf32_arm_link_hash_table): Declare new
	cmse_implib field.
	(bfd_elf32_arm_set_target_relocs): Add new parameter to initialize
	cmse_implib field in struct elf32_arm_link_hash_table.
	(elf32_arm_filter_cmse_symbols): New function.
	(elf32_arm_filter_implib_symbols): Likewise.
	(elf_backend_filter_implib_symbols): Define to
	elf32_arm_filter_implib_symbols.

ld/
	* emultempl/armelf.em (cmse_implib): Declare and define this new
	static variable.
	(arm_elf_create_output_section_statements): Add new cmse_implib
	parameter.
	(OPTION_CMSE_IMPLIB): Define macro.
	(PARSE_AND_LIST_LONGOPTS): Add entry for new --cmse-implib switch.
	(PARSE_AND_LIST_OPTIONS): Likewise.
	(PARSE_AND_LIST_ARGS_CASES): Handle OPTION_CMSE_IMPLIB case.
	* ld.texinfo (--cmse-implib): Document new option.
	* testsuite/ld-arm/arm-elf.exp
	(Secure gateway import library generation): New test.
	(Secure gateway import library generation: errors): Likewise.
	* testsuite/ld-arm/cmse-implib.s: New file.
	* testsuite/ld-arm/cmse-implib-errors.out: Likewise.
	* testsuite/ld-arm/cmse-implib.rd: Likewise.
2016-08-04 15:54:57 +01:00
Thomas Preud'homme
4ba2ef8fbe 2016-08-04 Thomas Preud'homme <thomas.preudhomme@arm.com>
bfd/
	* elf32-arm.c (CMSE_PREFIX): Define macro.
	(elf32_arm_stub_cmse_branch_thumb_only): Define stub sequence.
	(cmse_branch_thumb_only): Declare stub.
	(struct elf32_arm_link_hash_table): Define cmse_stub_sec field.
	(elf32_arm_get_plt_info): Add globals parameter.  Use it to return
	FALSE if there is no PLT.
	(arm_type_of_stub): Adapt to new elf32_arm_get_plt_info signature.
	(elf32_arm_final_link_relocate): Likewise.
	(elf32_arm_gc_sweep_hook): Likewise.
	(elf32_arm_gc_mark_extra_sections): Mark sections holding ARMv8-M
	secure entry functions.
	(arm_stub_is_thumb): Add case for arm_stub_cmse_branch_thumb_only.
	(arm_dedicated_stub_output_section_required): Change to a switch case
	and add a case for arm_stub_cmse_branch_thumb_only.
	(arm_dedicated_stub_output_section_required_alignment): Likewise.
	(arm_stub_dedicated_output_section_name): Likewise.
	(arm_stub_dedicated_input_section_ptr): Likewise and remove
	ATTRIBUTE_UNUSED for htab parameter.
	(arm_stub_required_alignment): Likewise.
	(arm_stub_sym_claimed): Likewise.
	(arm_dedicated_stub_section_padding): Likewise.
	(cmse_scan): New function.
	(elf32_arm_size_stubs): Call cmse_scan for ARM M profile targets.
	Set stub_changed to TRUE if such veneers were created.
	(elf32_arm_swap_symbol_in): Add detection code for CMSE special
	symbols.

include/
	* arm.h (ARM_GET_SYM_CMSE_SPCL): Define macro.
	(ARM_SET_SYM_CMSE_SPCL): Likewise.

ld/
	* ld.texinfo (Placement of SG veneers): New concept entry.
	* testsuite/ld-arm/arm-elf.exp
	(Secure gateway veneers: no .gnu.sgstubs section): New test.
	(Secure gateway veneers: wrong entry functions): Likewise.
	(Secure gateway veneers (ARMv8-M Baseline)): Likewise.
	(Secure gateway veneers (ARMv8-M Mainline)): Likewise.
	* testsuite/ld-arm/cmse-veneers.s: New file.
	* testsuite/ld-arm/cmse-veneers.d: Likewise.
	* testsuite/ld-arm/cmse-veneers.rd: Likewise.
	* testsuite/ld-arm/cmse-veneers.sd: Likewise.
	* testsuite/ld-arm/cmse-veneers-no-gnu_sgstubs.out: Likewise.
	* testsuite/ld-arm/cmse-veneers-wrong-entryfct.out: Likewise.
2016-08-04 15:36:52 +01:00
GDB Administrator
dabcfa6ef3 Automatic date update in version.in 2016-08-04 00:00:19 +00:00
GDB Administrator
f72b087237 Automatic date update in version.in 2016-08-03 00:00:18 +00:00
Alan Modra
89d77b8a52 PowerPC64 ld segfault with code in non-executable sections
PR ld/20428
	* elf64-ppc.c (ppc_get_stub_entry): Don't segfault on NULL group.
2016-08-02 23:39:09 +09:30
Nick Clifton
a94d834c9d Fix SH GOT allocation in the presence of linker garbage collection.
PR ld/17739
ld	* emulparams/shelf.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Define with
	valye 'yes'.
	* emulparams/shelf32.sh: Likewise.
	* emulparams/shelf32.sh: Likewise.
	* emulparams/shelf_nto.sh: Likewise.
	* emulparams/shelf_nto.sh: Likewise.
	* emulparams/shelf_vxworks.sh: Likewise.
	* emulparams/shelf_vxworks.sh: Likewise.
	* emulparams/shlelf32_linux.sh: Likewise.
	* emulparams/shlelf32_linux.sh: Likewise.
	* emulparams/shlelf_linux.sh: Likewise.
	* emulparams/shlelf_linux.sh: Likewise.
	* emulparams/shlelf_nto.sh: Likewise.
	* emulparams/shlelf_nto.sh: Likewise.

bfd	* elf32-sh.c (sh_elf_gc_sweep_hook): Delete.
	(elf_backend_sweep_hook): Delete.
2016-08-02 11:56:55 +01:00
GDB Administrator
80b476c2bf Automatic date update in version.in 2016-08-02 00:00:20 +00:00
Andrew Jenner
dfdaec14b0 Fix some PowerPC VLE BFD issues and add some PowerPC VLE instructions.
bfd/
        * elf32-ppc.c (is_branch_reloc): Recognise VLE branch relocations.
        (ppc_elf_howto_raw): Fix dst_mask of R_PPC_VLE_REL15.
        (ppc_elf_vle_split16): Clear field before inserting.

        opcodes/
        * ppc-opc.c (vle_opcodes): Alias 'e_cmpwi' to 'e_cmpi' and
        'e_cmplwi' to 'e_cmpli' instead.
        (OPVUPRT, OPVUPRT_MASK): Define.
        (powerpc_opcodes): Add E200Z4 insns.
        (vle_opcodes): Add context save/restore insns.

        include/
        * opcode/ppc.h (PPC_OPCODE_E200Z4): New define.
2016-08-01 09:42:31 -07:00
Nick Clifton
781bf64d24 Update Swedish translation in bfd directory. 2016-08-01 09:59:04 +01:00
GDB Administrator
5e3d6ca4de Automatic date update in version.in 2016-08-01 00:00:20 +00:00
GDB Administrator
a161b769b0 Automatic date update in version.in 2016-07-31 00:00:20 +00:00
GDB Administrator
3e684cf25a Automatic date update in version.in 2016-07-30 00:00:19 +00:00
GDB Administrator
76539d80f7 Automatic date update in version.in 2016-07-29 00:00:19 +00:00
GDB Administrator
ff20cab8a2 Automatic date update in version.in 2016-07-28 00:00:30 +00:00
Nick Clifton
147d994bcd Fix seg-fault when running garbage collection on coff binaries.
PR ld/20401
	* coffgen.c (fini_reloc_cookie_rels): Check for the extistence
	of the coff_section_data before using it.
2016-07-27 10:50:52 +01:00
GDB Administrator
b6e11d01e0 Automatic date update in version.in 2016-07-27 00:00:21 +00:00
Maciej W. Rozycki
54806ffa85 MIPS/BFD: Handle branches in PLT compression selection
Complement:

commit 1bbce13264
Author: Maciej W. Rozycki <macro@linux-mips.org>
Date:   Mon Jun 24 23:55:46 2013 +0000

<https://sourceware.org/ml/binutils/2013-06/msg00077.html>, ("MIPS:
Compressed PLT/stubs support"), and also choose between regular and
compressed PLT entries as appropriate for any branches referring.

	bfd/
	* elfxx-mips.c (mips_elf_calculate_relocation): Handle branches
	in PLT compression selection.
	(_bfd_mips_elf_check_relocs): Likewise.

	ld/
	* testsuite/ld-mips-elf/compressed-plt-1.s: Add branch support.
	* testsuite/ld-mips-elf/compressed-plt-1a.s: Likewise.
	* testsuite/ld-mips-elf/compressed-plt-1b.s: Likewise.
	* testsuite/ld-mips-elf/compressed-plt-1-o32-branch.od: New
	test.
	* testsuite/ld-mips-elf/compressed-plt-1-o32-branch.rd: New
	test.
	* testsuite/ld-mips-elf/compressed-plt-1-o32-mips16-bronly.od:
	New test.
	* testsuite/ld-mips-elf/compressed-plt-1-o32-mips16-bronly.rd:
	New test.
	* testsuite/ld-mips-elf/compressed-plt-1-o32-mips16-branch.od:
	New test.
	* testsuite/ld-mips-elf/compressed-plt-1-o32-mips16-branch.rd:
	New test.
	* testsuite/ld-mips-elf/compressed-plt-1-o32-umips-bronly.od:
	New test.
	* testsuite/ld-mips-elf/compressed-plt-1-o32-umips-bronly.rd:
	New test.
	* testsuite/ld-mips-elf/compressed-plt-1-o32-umips-branch.od:
	New test.
	* testsuite/ld-mips-elf/compressed-plt-1-o32-umips-branch.rd:
	New test.
	* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
2016-07-26 20:00:48 +01:00
GDB Administrator
698f8cbbbb Automatic date update in version.in 2016-07-26 00:00:22 +00:00
GDB Administrator
a173d7f80d Automatic date update in version.in 2016-07-25 00:00:19 +00:00
GDB Administrator
074e493dbd Automatic date update in version.in 2016-07-24 00:00:22 +00:00
GDB Administrator
cac709756b Automatic date update in version.in 2016-07-23 00:00:20 +00:00
Cupertino Miranda
c02d11a585 Fix segfault in ARC linker when generating got entries for local symbols.
bfd	* arc-got.h (relocate_fix_got_relocs_for_got_info): Handle the case
	where there's no elf_link_hash_entry while processing GOT_NORMAL got
	entries.

ld	* testsuite/ld-arc/got-01.d: New file.
	* testsuite/ld-arc/got-01.s: New file.
2016-07-22 15:10:31 +01:00
GDB Administrator
70ad8739d8 Automatic date update in version.in 2016-07-22 00:00:22 +00:00
H.J. Lu
fecd57f9f1 Set BFD_VERSION to 2.27.51
bfd/

	* version.m4 (BFD_VERSION): Set to 2.27.51.
	* configure: Regenerated.

binutils/

	* configure: Regenerated.

gas/

	* configure: Regenerated.

gprof/

	* configure: Regenerated.

ld/

	* configure: Regenerated.

opcodes/

	* configure: Regenerated.
2016-07-21 15:22:13 -07:00
H.J. Lu
89b829a8b3 Move ChangeLog entry for PR ld/20376 2016-07-21 15:17:37 -07:00
Alan Modra
5df1bc570f Fix implib test failures
bfd/
	* elf.c (_bfd_elf_filter_global_symbols): Skip local symbols.
	(swap_out_syms): Return an error when not finding ELF output
	section rather than asserting.
	* elflink.c (elf_output_implib): Call bfd_set_error on no symbols.
ld/
	* testsuite/lib/ld-lib.exp (run_ld_link_tests): Add optional
	parameter to pass list of xfails.
	* testsuite/ld-elf/elf.exp: Add xfails for implib tests.  Tidy
	implib test formatting.  Don't set .data start address.
	* testsuite/ld-elf/implib.s: Remove first .bss directive and
	replace second one with equivalent .section directive.
	* testsuite/ld-elf/empty-implib.out: Add expected final error.
	* testsuite/ld-elf/implib.rd: Update.
2016-07-21 11:30:34 +09:30
GDB Administrator
c092a4d915 Automatic date update in version.in 2016-07-21 00:00:21 +00:00
John Baldwin
0064d22386 Handle version 1a of FreeBSD's NT_PRSINFO.
Version 1a adds a pr_pid member containing the process ID of the
terminating process.  The presence of pr_pid is inferred from the
note's size.

bfd/ChangeLog:

	* elf.c (elfcore_grok_freebsd_psinfo): Check for minimum note size
	and handle pr_pid if present.
2016-07-20 08:43:54 -07:00
H.J. Lu
9ab8247228 Check p_paddr for program header space
Issue an error if p_paddr becomes invalid when allocating space for
program headers.

	PR ld/20376
	* elf.c (assign_file_positions_for_load_sections): Also check
	p_paddr for program header space.
2016-07-20 07:50:56 -07:00
Alan Modra
3ce512885b Mark some more powerpc relocs as not handled by generic linker
* elf64-ppc.c (ppc64_elf_howto_raw <R_PPC64_PLTREL32>): Put
	ppc64_elf_unhandled_reloc for special_function.
	* elf32-ppc.c (ppc_elf_howto_raw): Similarly for lots of relocs.
2016-07-20 10:55:04 +09:30
GDB Administrator
0806868fa0 Automatic date update in version.in 2016-07-20 00:00:23 +00:00
Maciej W. Rozycki
a6ebf6169a MIPS: Convert cross-mode BAL to JALX
Convert cross-mode regular MIPS and microMIPS BAL instructions to JALX,
similarly to how JAL instructions are converted.

	bfd/
	* elfxx-mips.c (mips_elf_perform_relocation): Convert cross-mode
	BAL to JALX.
	(_bfd_mips_elf_relocate_section) <bfd_reloc_outofrange>: Add a
	corresponding error message.

	gas/
	* config/tc-mips.c (mips_force_relocation, mips_fix_adjustable):
	Adjust comments for BAL to JALX linker conversion.
	(fix_bad_cross_mode_branch_p): Accept cross-mode BAL.
	* testsuite/gas/mips/unaligned-branch-1.l: Update error messages
	expected.
	* testsuite/gas/mips/unaligned-branch-micromips-1.l: Likewise.
	* testsuite/gas/mips/branch-local-4.d: New test.
	* testsuite/gas/mips/branch-local-n32-4.d: New test.
	* testsuite/gas/mips/branch-local-n64-4.d: New test.
	* testsuite/gas/mips/branch-addend.d: New test.
	* testsuite/gas/mips/branch-addend-n32.d: New test.
	* testsuite/gas/mips/branch-addend-n64.d: New test.
	* testsuite/gas/mips/branch-local-4.s: New test source.
	* testsuite/gas/mips/branch-addend.s: New test source.
	* testsuite/gas/mips/mips.exp: Run the new tests.

	ld/
	* testsuite/ld-mips-elf/unaligned-branch-2.d: Update error
	messages expected.
	* testsuite/ld-mips-elf/unaligned-branch-r6-1.d: Likewise.
	* testsuite/ld-mips-elf/unaligned-branch-mips16.d: Likewise.
	* testsuite/ld-mips-elf/unaligned-branch-micromips.d: Likewise.
	* testsuite/ld-mips-elf/bal-jalx-addend.d: New test.
	* testsuite/ld-mips-elf/bal-jalx-local.d: New test.
	* testsuite/ld-mips-elf/bal-jalx-pic.d: New test.
	* testsuite/ld-mips-elf/bal-jalx-addend-n32.d: New test.
	* testsuite/ld-mips-elf/bal-jalx-local-n32.d: New test.
	* testsuite/ld-mips-elf/bal-jalx-pic-n32.d: New test.
	* testsuite/ld-mips-elf/bal-jalx-addend-n64.d: New test.
	* testsuite/ld-mips-elf/bal-jalx-local-n64.d: New test.
	* testsuite/ld-mips-elf/bal-jalx-pic-n64.d: New test.
	* testsuite/ld-mips-elf/unaligned-jalx-2.d: New test.
	* testsuite/ld-mips-elf/unaligned-jalx-3.d: New test.
	* testsuite/ld-mips-elf/unaligned-jalx-addend-2.d: New test.
	* testsuite/ld-mips-elf/unaligned-jalx-addend-3.d: New test.
	* testsuite/ld-mips-elf/unaligned-jalx-2.s: New test source.
	* testsuite/ld-mips-elf/unaligned-jalx-3.s: New test source.
	* testsuite/ld-mips-elf/unaligned-jalx-addend-2.s: New test
	source.
	* testsuite/ld-mips-elf/unaligned-jalx-addend-3.s: New test
	source.
	* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
2016-07-19 16:22:53 +01:00
Maciej W. Rozycki
9d862524f6 MIPS: Verify the ISA mode and alignment of branch and jump targets
Verify that the ISA mode of branch targets is the same as the referring
relocation, so that an attempt to produce a branch between instructions
encoded in different ISA modes each causes an error rather than silently
producing non-functional code.  Make sure that no symbol or addend bits
are silently truncated: terminate with an error if the relocation value
calculated cannot be encoded in the relocatable field of a branch; for
REL targets also applying to any intermediate addend.

Also make jump target's alignment verification consistent with that for
branches.

This change will require an update to some obscure handcoded assembly
sources which make branches to labels placed at data objects, however
for microMIPS code only.  These labels will have to be updated with the
`.insn' directive for containing code to assemble and link successfully.
Such code is broken as any such labels have always been required by the
microMIPS architecture specification[1][2] to be annotated this way for
correct interpretation, and with our old code missing `.insn' directives
caused labels to present different semantics depending on whether they
were referred with branch (ISA bit ignored) or other relocations (ISA
bit respected).

Enforcing these checks however will ensure errors in building software,
like mixed regular MIPS and microMIPS code links with branches between,
will be diagnosed at the build time rather than causing odd run-time
errors such as intermittent crashes.  It will also let cross-mode BAL
instructions be converted to JALX instructions, with a separate change.

References:

[1] "MIPS Architecture for Programmers, Volume II-B: The microMIPS32
    Instruction Set", MIPS Technologies, Inc., Document Number: MD00582,
    Revision 5.04, January 15, 2014, Section 7.1 "Assembly-Level
    Compatibility", p. 533

[2] "MIPS Architecture for Programmers, Volume II-B: The microMIPS64
    Instruction Set", MIPS Technologies, Inc., Document Number: MD00594,
    Revision 5.04, January 15, 2014, Section 8.1 "Assembly-Level
    Compatibility", p. 623

	bfd/
	* elfxx-mips.c (b_reloc_p): Add R_MICROMIPS_PC16_S1,
	R_MICROMIPS_PC10_S1 and R_MICROMIPS_PC7_S1.
	(branch_reloc_p): New function.
	(mips_elf_calculate_relocation): Handle ISA mode determination
	for relocations against section symbols, against absolute
	symbols and absolute relocations.  Also set `*cross_mode_jump_p'
	for branches.
	<R_MIPS16_26, R_MIPS_26, R_MICROMIPS_26_S1>: Suppress alignment
	checks for weak undefined symbols.  Also check target alignment
	within the same ISA mode.
	<R_MIPS_PC16, R_MIPS_GNU_REL16_S2>: Handle cross-mode branches
	in the alignment check.
	<R_MICROMIPS_PC7_S1>: Add an alignment check.
	<R_MICROMIPS_PC10_S1>: Likewise.
	<R_MICROMIPS_PC16_S1>: Likewise.
	(mips_elf_perform_relocation): Report a failure for unsupported
	same-mode JALX instructions and cross-mode branches.
	(_bfd_mips_elf_relocate_section) <bfd_reloc_outofrange>: Add
	error messages for jumps to misaligned addresses.

	gas/
	* config/tc-mips.c (mips_force_relocation): Also retain branch
	relocations against MIPS16 and microMIPS symbols.
	(fix_bad_cross_mode_jump_p): New function.
	(fix_bad_same_mode_jalx_p): Likewise.
	(fix_bad_misaligned_jump_p): Likewise.
	(fix_bad_cross_mode_branch_p): Likewise.
	(fix_bad_misaligned_branch_p): Likewise.
	(fix_validate_branch): Likewise.
	(md_apply_fix) <BFD_RELOC_MIPS_JMP, BFD_RELOC_MIPS16_JMP>
	<BFD_RELOC_MICROMIPS_JMP>: Separate from BFD_RELOC_MIPS_SHIFT5,
	etc.  Verify the ISA mode and alignment of the jump target.
	<BFD_RELOC_MIPS_21_PCREL_S2>: Replace the inline alignment check
	with a call to `fix_validate_branch'.
	<BFD_RELOC_MIPS_26_PCREL_S2>: Likewise.
	<BFD_RELOC_16_PCREL_S2>: Likewise.
	<BFD_RELOC_MICROMIPS_7_PCREL_S1, BFD_RELOC_MICROMIPS_10_PCREL_S1>
	<BFD_RELOC_MICROMIPS_16_PCREL_S1>: Retain the original addend.
	Verify the ISA mode and alignment of the branch target.
	(md_convert_frag): Verify the ISA mode and alignment of resolved
	MIPS16 branch targets.
	* testsuite/gas/mips/branch-misc-1.s: Annotate non-instruction
	branch targets with `.insn'.
	* testsuite/gas/mips/branch-misc-5.s: Likewise.
	* testsuite/gas/mips/micromips@branch-misc-5-64.d: Update
	accordingly.
	* testsuite/gas/mips/micromips@branch-misc-5pic-64.d: Likewise.
	* testsuite/gas/mips/micromips-branch-relax.s: Annotate
	non-instruction branch target with `.insn'.
	* testsuite/gas/mips/micromips.s: Replace microMIPS JALX targets
	with external symbols.
	* testsuite/gas/mips/micromips-insn32.d: Update accordingly.
	* testsuite/gas/mips/micromips-noinsn32.d: Likewise.
	* testsuite/gas/mips/micromips-trap.d: Likewise.
	* testsuite/gas/mips/micromips.d: Likewise.
	* testsuite/gas/mips/mips16.s: Annotate non-instruction branch
	targets with `.insn'.
	* testsuite/gas/mips/mips16.d: Update accordingly.
	* testsuite/gas/mips/mips16-64.d: Likewise.
	* testsuite/gas/mips/mips16-dwarf2.s: Annotate non-instruction
	branch target with `.insn'.
	* testsuite/gas/mips/relax-swap3.s: Likewise.
	* testsuite/gas/mips/branch-local-2.l: New list test.
	* testsuite/gas/mips/branch-local-3.l: New list test.
	* testsuite/gas/mips/branch-local-n32-2.l: New list test.
	* testsuite/gas/mips/branch-local-n32-3.l: New list test.
	* testsuite/gas/mips/branch-local-n64-2.l: New list test.
	* testsuite/gas/mips/branch-local-n64-3.l: New list test.
	* testsuite/gas/mips/unaligned-jump-1.l: New list test.
	* testsuite/gas/mips/unaligned-jump-2.l: New list test.
	* testsuite/gas/mips/unaligned-jump-3.d: New test.
	* testsuite/gas/mips/unaligned-jump-mips16-1.l: New list test.
	* testsuite/gas/mips/unaligned-jump-mips16-2.l: New list test.
	* testsuite/gas/mips/unaligned-jump-mips16-3.d: New test.
	* testsuite/gas/mips/unaligned-jump-micromips-1.l: New list
	test.
	* testsuite/gas/mips/unaligned-jump-micromips-2.l: New list
	test.
	* testsuite/gas/mips/unaligned-jump-micromips-3.d: New test.
	* testsuite/gas/mips/unaligned-branch-1.l: New list test.
	* testsuite/gas/mips/unaligned-branch-2.l: New list test.
	* testsuite/gas/mips/unaligned-branch-3.d: New test.
	* testsuite/gas/mips/unaligned-branch-r6-1.l: New list test.
	* testsuite/gas/mips/unaligned-branch-r6-2.l: New list test.
	* testsuite/gas/mips/unaligned-branch-r6-3.l: New list test.
	* testsuite/gas/mips/unaligned-branch-r6-4.l: New list test.
	* testsuite/gas/mips/unaligned-branch-r6-5.d: New test.
	* testsuite/gas/mips/unaligned-branch-r6-6.d: New test.
	* testsuite/gas/mips/unaligned-branch-mips16-1.l: New list test.
	* testsuite/gas/mips/unaligned-branch-mips16-2.l: New list test.
	* testsuite/gas/mips/unaligned-branch-mips16-3.d: New test.
	* testsuite/gas/mips/unaligned-branch-micromips-1.l: New list
	test.
	* testsuite/gas/mips/unaligned-branch-micromips-2.l: New list
	test.
	* testsuite/gas/mips/unaligned-branch-micromips-3.d: New test.
	* testsuite/gas/mips/branch-local-2.s: New test source.
	* testsuite/gas/mips/branch-local-3.s: New test source.
	* testsuite/gas/mips/branch-local-n32-2.s: New test source.
	* testsuite/gas/mips/branch-local-n32-3.s: New test source.
	* testsuite/gas/mips/branch-local-n64-2.s: New test source.
	* testsuite/gas/mips/branch-local-n64-3.s: New test source.
	* testsuite/gas/mips/unaligned-jump-1.s: New test source.
	* testsuite/gas/mips/unaligned-jump-2.s: New test source.
	* testsuite/gas/mips/unaligned-jump-mips16-1.s: New test source.
	* testsuite/gas/mips/unaligned-jump-mips16-2.s: New test source.
	* testsuite/gas/mips/unaligned-jump-micromips-1.s: New test
	source.
	* testsuite/gas/mips/unaligned-jump-micromips-2.s: New test
	source.
	* testsuite/gas/mips/unaligned-branch-1.s: New test source.
	* testsuite/gas/mips/unaligned-branch-2.s: New test source.
	* testsuite/gas/mips/unaligned-branch-r6-1.s: New test source.
	* testsuite/gas/mips/unaligned-branch-r6-2.s: New test source.
	* testsuite/gas/mips/unaligned-branch-r6-3.s: New test source.
	* testsuite/gas/mips/unaligned-branch-r6-4.s: New test source.
	* testsuite/gas/mips/unaligned-branch-mips16-1.s: New test
	source.
	* testsuite/gas/mips/unaligned-branch-mips16-2.s: New test
	source.
	* testsuite/gas/mips/unaligned-branch-micromips-1.s: New test
	source.
	* testsuite/gas/mips/unaligned-branch-micromips-2.s: New test
	source.
	* testsuite/gas/mips/mips.exp: Run the new tests.

	ld/
	* testsuite/ld-mips-elf/unaligned-jalx-1.d: Update error message
	expected.
	* testsuite/ld-mips-elf/unaligned-jalx-addend-1.d: Likewise.
	* testsuite/ld-mips-elf/unaligned-jalx-addend-mips16-1.d:
	Likewise.
	* testsuite/ld-mips-elf/unaligned-jalx-addend-micromips-1.d:
	Likewise.
	* testsuite/ld-mips-elf/unaligned-jalx-mips16-1.d: Likewise.
	* testsuite/ld-mips-elf/unaligned-jalx-micromips-1.d: Likewise.
	* testsuite/ld-mips-elf/undefweak-overflow.s: Add jumps,
	microMIPS BAL and MIPS16 instructions.
	* testsuite/ld-mips-elf/undefweak-overflow.d: Update
	accordingly.
	* testsuite/ld-mips-elf/unaligned-branch-2.d: New test.
	* testsuite/ld-mips-elf/unaligned-branch-r6-1.d: New test.
	* testsuite/ld-mips-elf/unaligned-branch-r6-2.d: New test.
	* testsuite/ld-mips-elf/unaligned-branch-mips16.d: New test.
	* testsuite/ld-mips-elf/unaligned-branch-micromips.d: New test.
	* testsuite/ld-mips-elf/unaligned-jump-mips16.d: New test.
	* testsuite/ld-mips-elf/unaligned-jump-micromips.d: New test.
	* testsuite/ld-mips-elf/unaligned-jump.d: New test.
	* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
2016-07-19 14:46:30 +01:00
GDB Administrator
a4717ffb7b Automatic date update in version.in 2016-07-19 00:00:21 +00:00
GDB Administrator
faf1390514 Automatic date update in version.in 2016-07-18 00:00:20 +00:00
GDB Administrator
68cd8f1098 Automatic date update in version.in 2016-07-17 00:00:40 +00:00
Alan Modra
7d0b9ebc1e Don't include libbfd.h outside of bfd, part 6
Some messing with plugin code in order to not need arelt_size in
ld code.  File descriptor handling in ld/plugin.c is tidied too,
simply duping the open fd rather than opening the file again.

bfd/
	* elflink.c: Include plugin-api.h.
	* plugin.c (bfd_plugin_open_input): New function, extracted from..
	(try_claim): ..here.
	* plugin.h: Don't include bfd.h.
	(bfd_plugin_open_input): Declare.
binutils/
	* ar.c: Include plugin-api.h.
	* nm.c: Likewise.
ld/
	* plugin.c: Don't include libbfd.h.  Include plugin-api.h
	before bfd/plugin.h.
	(plugin_object_p): Use bfd_plugin_open_input.
2016-07-16 19:09:00 +09:30
Alan Modra
4212b42d79 Don't include libbfd.h outside of bfd, part 4
Not much to see here, just renaming a function.

bfd/
	* targets.c (bfd_seach_for_target): Rename to..
	(bfd_iterate_over_targets): ..this.  Rewrite doc.
	* bfd-in2.h: Regenerate.
ld/
	* ldlang.c (open_output): Replace bfd_search_for_target with
	bfd_iterate_over_targets.  Localize vars.
2016-07-16 13:29:35 +09:30
Alan Modra
00dad9a491 Don't include libbfd.h outside of bfd, part 2
Make bfd_default_set_arch_mach available to a bunch of gas backend
files.

bfd/
	* archures.c (bfd_default_set_arch_mach): Make available in bfd.h.
	* libbfd.h: Regenerate.
	* bfd-in2.h: Regenerate.
gas/
	* config/tc-epiphany.c: Don't include libbfd.h.
	* config/tc-frv.c: Likewise.
	* config/tc-ip2k.c: Likewise.
	* config/tc-iq2000.c: Likewise.
	* config/tc-m32c.c: Likewise.
	* config/tc-mep.c: Likewise.
	* config/tc-mt.c: Likewise.
	* config/tc-nios2.c: Likewise.
2016-07-16 13:27:30 +09:30
Alan Modra
76e7a75123 Don't include libbfd.h outside of bfd, part 1
Make BFD_ALIGN available to objcopy.  Fix assertions.  Don't use
bfd_log2 in ppc32elf.em or bfd_malloc in xtensaelf.em and bucomm.c.

bfd/
	* libbfd-in.h (BFD_ALIGN): Move to..
	* bfd-in.h: ..here.
	* elf32-ppc.h (struct ppc_elf_params): Add pagesize.
	* elf32-ppc.c (default_params): Adjust init.
	(ppc_elf_link_params): Set pagesize_p2.
	* libbfd.h: Regenerate.
	* bfd-in2.h: Regenerate.
binutils/
	* ar.c: Don't include libbfd.h.
	* objcopy.c: Likewise.
	* bucomm.c (bfd_get_archive_filename): Use xmalloc rather than
	bfd_malloc.
gas/
	* config/bfin-parse.y: Don't include libbfd.h.
	* config/tc-bfin.c: Likewise.
	* config/tc-rl78.c: Likewise.
	* config/tc-rx.c: Likewise.
	* config/tc-metag.c: Likewise.
	(create_dspreg_htabs, create_scond_htab): Use gas_assert not BFD_ASSERT.
	* Makefile.am: Update dependencies.
	* Makefile.in: Regenerate.
ld/
	* ldlang.c: Don't include libbfd.h.
	* emultempl/nds32elf.em: Likewise.
	* emultempl/ppc64elf.em: Likewise.
	* emultempl/ppc32elf.em: Likewise.
	(pagesize): Delete.
	(params): Update init.
	(ppc_after_open_output): Use params.pagesize.  Don't call bfd_log2.
	(PARSE_AND_LIST_ARGS_CASES): Use params.pagesize.
	* emultempl/sh64elf.em: Don't include libbfd.h.
	(after_allocation): Use ASSERT, not BFD_ASSERT.
	* emultempl/xtensaelf.em: Don't include libbfd.h.
	(replace_insn_sec_with_prop_sec): Use xmalloc, not bfd_malloc.
	* Makefile.am: Update dependencies.
	* Makefile.in: Regenerate.
2016-07-16 13:25:11 +09:30
GDB Administrator
235fa74903 Automatic date update in version.in 2016-07-16 00:00:20 +00:00
Thomas Preud'homme
7635954182 Add support for creating ELF import libraries
2016-07-15  Thomas Preud'homme  <thomas.preudhomme@arm.com>

bfd/
	* elf-bfd.h (elf_backend_filter_implib_symbols): Declare backend hook.
	(_bfd_elf_filter_global_symbols): Declare.
	* elf.c (_bfd_elf_filter_global_symbols): New function.
	* elflink.c (elf_filter_global_symbols): Likewise.
	(elf_output_implib): Likewise.
	(bfd_elf_final_link): Call above function, failing if it does.
	* elfxx-target.h (elf_backend_filter_implib_symbols): Define macro and
	default it to NULL.
	(elf_backend_copy_indirect_symbol): Fix spacing.
	(elf_backend_hide_symbol): Likewise.
	(elfNN_bed): Initialize elf_backend_filter_implib_symbols backend hook.

include/
	* bfdlink.h (struct bfd_link_info): Declare new ldscript_def and
	out_implib_bfd fields.

2016-07-15  Thomas Preud'homme  <thomas.preudhomme@arm.com>
	    Nick Clifton  <nickc@redhat.com>

ld/
	* emultempl/elf32.em (gld${EMULATION_NAME}_after_open): Open import
	library file for writing and initialize implib_bfd field of link_info
	structure.
	* emultempl/pe.em (pe_implib_filename): Remove variable declaration.
	(OPTION_IMPLIB_FILENAME): Remove macro definition.
	(gld${EMULATION_NAME}_add_options): Remove --out-implib option.
	(gld_${EMULATION_NAME}_list_options): Likewise.
	(gld${EMULATION_NAME}_handle_option): Likewise.
	(gld_${EMULATION_NAME}_finish): Use command_line.out_implib_filename
	instead of pe_implib_filename.
	* emultempl/pep.em (pep_implib_filename): Remove variable declaration.
	(OPTION_IMPLIB_FILENAME): Remove enumerator.
	(gld${EMULATION_NAME}_add_options): Remove --out-implib option.
	(gld_${EMULATION_NAME}_list_options): Likewise.
	(gld${EMULATION_NAME}_handle_option): Likewise.
	(gld_${EMULATION_NAME}_finish): Use command_line.out_implib_filename
	instead of pep_implib_filename.
	* ld.h (args_type): Declare new out_implib_filename field.
	* ld.texinfo (--out-implib): Move documentation to arch-independent
	part and rephrase to apply to ELF targets.
	* ldexp.c (exp_fold_tree_1): Set ldscript_def field to 1 for symbols
	defined in linker scripts.
	* ldlex.h (enum option_values): Declare new OPTION_OUT_IMPLIB
	enumerator.
	* lexsup.c (ld_options): Add entry for new --out-implib switch.
	(parse_args): Handle OPTION_OUT_IMPLIB case.
	* testsuite/ld-elf/elf.exp (Generate empty import library): New test.
	(Generate import library): Likewise.
	* testsuite/ld-elf/implib.s: Likewise.
	* testsuite/ld-elf/implib.rd: New file.
	* testsuite/ld-elf/empty-implib.out: Likewise
2016-07-15 17:50:48 +01:00
Nick Clifton
f7e8b360fe Tidy up debugging in the ARC port of the BFD library.
bfd	* elf32-arc.c (PR_DEBUG): Delete.
	Fix printing of debug information.  Fix formatting of debug
	statements.
	(debug_arc_reloc): Handle symbols that are not from an input file.
	(arc_do_relocation): Remove excessive exclamation points.
	(elf_arc_relocate_section): Print an informative message if the
	relocation fails, even if debugging is not enabled.
	* arc-got.h: Fix formatting.  Fix printing of debug information.
	(new_got_entry_to_list): Use xmalloc.
	* config.bfd: use the big-endian arc vector as the default vector
	for big-endian arc targets.

ld	* testsuite/ld-arc/arc.exp: Always run the sda-relocs test in
	little endian mode.
2016-07-15 12:00:03 +01:00
Alan Modra
06ab6faf83 COFF buffer overflow in mark_relocs
* cofflink.c (mark_relocs): Exclude relocs with -1 r_symndx
	from marking sym_indices.
2016-07-15 17:02:00 +09:30
GDB Administrator
50c1cbe189 Automatic date update in version.in 2016-07-15 00:00:23 +00:00
Maciej W. Rozycki
0c11728627 BFD: Let targets handle relocations against absolute symbols
Fix a generic BFD issue with relocations against absolute symbols, which
are installed without using any individual relocation handler provided
by the backend.  This causes any absolute section's addend to be lost on
REL targets such as o32 MIPS, and also relocation-specific calculation
adjustments are not made.

As an example assembling this program:

$ cat test.s
	.text
foo:
	b	bar
	b	baz

	.set	bar, 0x1234
$ as -EB -32 -o test-o32.o test.s
$ as -EB -n32 -o test-n32.o test.s

produces this binary code:

$ objdump -dr test-o32.o test-n32.o

test-o32.o:     file format elf32-tradbigmips

Disassembly of section .text:

00000000 <foo>:
   0:	10000000 	b	4 <foo+0x4>
			0: R_MIPS_PC16	*ABS*
   4:	00000000 	nop
   8:	1000ffff 	b	8 <foo+0x8>
			8: R_MIPS_PC16	baz
   c:	00000000 	nop

test-n32.o:     file format elf32-ntradbigmips

Disassembly of section .text:

00000000 <foo>:
   0:	10000000 	b	4 <foo+0x4>
			0: R_MIPS_PC16	*ABS*+0x1230
   4:	00000000 	nop
   8:	10000000 	b	c <foo+0xc>
			8: R_MIPS_PC16	baz-0x4
   c:	00000000 	nop
$

where it is clearly visible in `test-o32.o', which uses REL relocations,
that the absolute section's addend equivalent to the value of `bar' -- a
reference to which cannot be fully resolved at the assembly time,
because the reference is PC-relative -- has been lost, as has been the
relocation-specific adjustment of -4, required to take into account the
PC+4-relative calculation made by hardware with branches and seen in the
external symbol reference to `baz' as the `ffff' addend encoded in the
instruction word.  In `test-n32.o', which uses RELA relocations, the
absolute section's addend has been correctly retained.

Give precedence then in `bfd_perform_relocation' and
`bfd_install_relocation' to any individual relocation handler the
backend selected may have provided, while still resorting to the generic
calculation otherwise.  This retains the semantics which we've had since
forever or before the beginning of our repository history, and is at the
very least compatible with `bfd_elf_generic_reloc' being used as the
handler.

Retain the `bfd_is_und_section' check unchanged at the beginning of
`bfd_perform_relocation' since this does not affect the semantics of the
function.  The check returns the same `bfd_reloc_undefined' code the
check for a null `howto' does, so swapping the two does not matter.
Also the check is is mutually exclusive with the `bfd_is_abs_section'
check, since a section cannot be absolute and undefined both at once, so
swapping the two does not matter either.

With this change applied the program quoted above now has the in-place
addend correctly calculated and installed in the field being relocated:

$ objdump -dr fixed-o32.o

fixed-o32.o:     file format elf32-tradbigmips

Disassembly of section .text:

00000000 <foo>:
   0:	1000048c 	b	1234 <bar>
			0: R_MIPS_PC16	*ABS*
   4:	00000000 	nop
   8:	1000ffff 	b	8 <foo+0x8>
			8: R_MIPS_PC16	baz
   c:	00000000 	nop
$

Add a set of MIPS tests to cover the relevant cases, including absolute
symbols with addends, and verifying that PC-relative relocations against
symbols concerned resolve to the same value in the final link regardless
of whether the REL or the RELA relocation form is used.  Exclude linker
tests though which would overflow the in-place addend on REL targets and
use them as dump patterns for RELA targets only.

	bfd/
	* reloc.c (bfd_perform_relocation): Try the `howto' handler
	first with relocations against absolute symbols.
	(bfd_install_relocation): Likewise.

	gas/
	* testsuite/gas/mips/mips16-branch-absolute.d: Update patterns.
	* testsuite/gas/mips/branch-absolute.d: New test.
	* testsuite/gas/mips/branch-absolute-n32.d: New test.
	* testsuite/gas/mips/branch-absolute-n64.d: New test.
	* testsuite/gas/mips/branch-absolute-addend-n32.d: New test.
	* testsuite/gas/mips/branch-absolute-addend-n64.d: New test.
	* testsuite/gas/mips/mips16-branch-absolute-n32.d: New test.
	* testsuite/gas/mips/mips16-branch-absolute-n64.d: New test.
	* testsuite/gas/mips/mips16-branch-absolute-addend-n32.d: New
	test.
	* testsuite/gas/mips/mips16-branch-absolute-addend-n64.d: New
	test.
	* testsuite/gas/mips/micromips-branch-absolute.d: New test.
	* testsuite/gas/mips/micromips-branch-absolute-n32.d: New test.
	* testsuite/gas/mips/micromips-branch-absolute-n64.d: New test.
	* testsuite/gas/mips/micromips-branch-absolute-addend-n32.d: New
	test.
	* testsuite/gas/mips/micromips-branch-absolute-addend-n64.d: New
	test.
	* testsuite/gas/mips/branch-absolute.s: New test source.
	* testsuite/gas/mips/branch-absolute-addend.s: New test source.
	* testsuite/gas/mips/mips16-branch-absolute-addend.s: New test
	source.
	* testsuite/gas/mips/micromips-branch-absolute.s: New test
	source.
	* testsuite/gas/mips/micromips-branch-absolute-addend.s: New
	test source.
	* testsuite/gas/mips/mips.exp: Run the new tests.

	ld/
	* testsuite/ld-mips-elf/branch-absolute.d: New test.
	* testsuite/ld-mips-elf/branch-absolute-n32.d: New test.
	* testsuite/ld-mips-elf/branch-absolute-n64.d: New test.
	* testsuite/ld-mips-elf/branch-absolute-addend.d: New test.
	* testsuite/ld-mips-elf/branch-absolute-addend-n32.d: New test.
	* testsuite/ld-mips-elf/branch-absolute-addend-n64.d: New test.
	* testsuite/ld-mips-elf/micromips-branch-absolute.d: New test.
	* testsuite/ld-mips-elf/micromips-branch-absolute-n32.d: New
	test.
	* testsuite/ld-mips-elf/micromips-branch-absolute-n64.d: New
	test.
	* testsuite/ld-mips-elf/micromips-branch-absolute-addend.d: New
	test.
	* testsuite/ld-mips-elf/micromips-branch-absolute-addend-n32.d:
	New test.
	* testsuite/ld-mips-elf/micromips-branch-absolute-addend-n64.d:
	New test.
	* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests, except
	from `branch-absolute-addend' and
	`micromips-branch-absolute-addend', referred indirectly only.
2016-07-14 20:06:37 +01:00
GDB Administrator
efc67f64c9 Automatic date update in version.in 2016-07-14 00:00:24 +00:00