Commit Graph

2943 Commits

Author SHA1 Message Date
Nick Clifton
7296a62a2a readelf: fix out of range subtraction, seg fault from a NULL pointer and memory exhaustion, all from parsing corrupt binaries.
PR binutils/21379
	* readelf.c (process_dynamic_section): Detect over large section
	offsets in the DT_SYMTAB entry.

	PR binutils/21345
	* readelf.c (process_mips_specific): Catch an unfeasible memory
	allocation before it happens and print a suitable error message.
2017-04-13 16:06:30 +01:00
Nick Clifton
1d15e434f4 Add note merging to strip and add code to merge stack size notes.
* objcopy.c: Add --no-merge-notes option to disable note merging.
	Add --[no-]merge-notes option to strip, and enable it by default.
	(num_bytes): New function.
	(merge_gnu_build_notes): Add code to merge stack size notes.
	* binutils.texi: Update strip and objcopy documentation.
	* readelf.c (print_gnu_build_attribute_name): Use defined
	constants for note types.
2017-04-13 14:50:56 +01:00
John Delsignor
28d909e539 Prevent a bigus warning from readelf about a gdb-index table being too big.
PR binutils/21319
	* dwarf.c (display_gdb_index): Correct test for a corrupt address
	table size.
2017-04-10 16:27:05 +01:00
Jiong Wang
0f65a5d84d [objcopy] Fix quadratic-time when handling --redefine-syms
objcopy/
	* objcopy.c (struct redefine_node): Delete the field "next".
	(redefine_sym_list): Deleted.
	(redefine_specific_htab): New hash table.
	(redefine_specific_reverse_htab): Likewise.
	(eq_string_redefnode): New function.
	(htab_hash_redefnode): Likewise.
	(create_symbol2redef_htab): Likewise.
	(add_specific_symbol_node): Likewise.
	(create_symbol_htabs): Create redefine_specific_htab and
	redefine_specific_reverse_htab.
	(lookup_sym_redefinition): Use hash table instead of list.
	(redefine_list_append): Likewise, and rename to add_redefine_and_check.
	(copy_main): Use redefine_specific_htab instead of redefine_sym_list.
	Update comments.
2017-04-06 10:31:27 +01:00
H.J. Lu
a91e1603af Support ELF SHF_GNU_MBIND and PT_GNU_MBIND_XXX
Mark an ALLOC section, which should be placed in special memory area,
with SHF_GNU_MBIND.  Its sh_info field indicates the special memory
type.  GNU_MBIND section names start with ".mbind" so that they are
placed as orphan sections by linker.  All input GNU_MBIND sections
with the same sh_type, sh_flags and sh_info are placed in one output
GNU_MBIND section.  In executable and shared object, create a
GNU_MBIND segment for each GNU_MBIND section and its segment type is
PT_GNU_MBIND_LO plus the sh_info value.  Each GNU_MBIND segment is
aligned at page boundary.

The assembler syntax:

    .section .mbind.foo,"adx",%progbits
                          ^             0: Special memory type.
                          |
                         'd' for SHF_GNU_MBIND.

    .section .mbind.foo,"adx",%progbits,0x1
                          ^             1: Special memory type.
                          |
                         'd' for SHF_GNU_MBIND.

    .section .mbind.bar,"adG",%progbits,.foo_group,comdat,0x2
                          ^                               2: Special memory type.
                          |
                         'd' for SHF_GNU_MBIND.

bfd/

	* elf.c (get_program_header_size): Add a GNU_MBIND segment for
	each GNU_MBIND section and align GNU_MBIND section to page size.
	(_bfd_elf_map_sections_to_segments): Create a GNU_MBIND
	segment for each GNU_MBIND section.
	(_bfd_elf_init_private_section_data): Copy sh_info from input
	for GNU_MBIND section.

binutils/

	* NEWS: Mention support for ELF SHF_GNU_MBIND and
	PT_GNU_MBIND_XXX.
	* readelf.c (get_segment_type): Handle PT_GNU_MBIND_XXX.
	(get_elf_section_flags): Handle SHF_GNU_MBIND.
	(process_section_headers): Likewise.
	* testsuite/binutils-all/mbind1.s: New file.
	* testsuite/binutils-all/objcopy.exp: Run readelf test on
	mbind1.s.

gas/

	* NEWS: Mention support for ELF SHF_GNU_MBIND.
	* config/obj-elf.c (section_match): New.
	(get_section): Match both sh_info and group name.
	(obj_elf_change_section): Add argument for sh_info.  Pass both
	sh_info and group name to get_section. Issue an error for
	SHF_GNU_MBIND section without SHF_ALLOC.  Set sh_info.
	(obj_elf_parse_section_letters): Set SHF_GNU_MBIND for 'd'.
	(obj_elf_section): Support SHF_GNU_MBIND section info.
	* config/obj-elf.h (obj_elf_change_section): Add argument for
	sh_info.
	* config/tc-arm.c (start_unwind_section): Pass 0 as sh_info to
	obj_elf_change_section.
	* config/tc-ia64.c (obj_elf_vms_common): Likewise.
	* config/tc-microblaze.c (microblaze_s_data): Likewise.
	(microblaze_s_sdata): Likewise.
	(microblaze_s_rdata): Likewise.
	(microblaze_s_bss): Likewise.
	* config/tc-mips.c (s_change_section): Likewise.
	* config/tc-msp430.c (msp430_profiler): Likewise.
	* config/tc-rx.c (parse_rx_section): Likewise.
	* config/tc-tic6x.c (tic6x_start_unwind_section): Likewise.
	* doc/as.texinfo: Document 'd' for SHF_GNU_MBIND.
	* testsuite/gas/elf/elf.exp: Run section12a, section12b and
	section13.
	* testsuite/gas/elf/section10.d: Updated.
	* testsuite/gas/elf/section10.s: Likewise.
	* testsuite/gas/elf/section12.s: New file.
	* testsuite/gas/elf/section12a.d: Likewise.
	* testsuite/gas/elf/section12b.d: Likewise.
	* testsuite/gas/elf/section13.l: Likewise.
	* testsuite/gas/elf/section13.d: Likewise.
	* testsuite/gas/elf/section13.s: Likewise.

include/

	* elf/common.h (PT_GNU_MBIND_NUM): New.
	(PT_GNU_MBIND_LO): Likewise.
	(PT_GNU_MBIND_HI): Likewise.
	(SHF_GNU_MBIND): Likewise.

ld/

	* NEWS: Mention support for ELF SHF_GNU_MBIND and
	PT_GNU_MBIND_XXX.
	* emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Place
	input GNU_MBIND sections with the same type, attributes and
	sh_info field into a single output GNU_MBIND section.
	* testsuite/ld-elf/elf.exp: Run mbind2a and mbind2b.
	* testsuite/ld-elf/mbind1.s: New file.
	* testsuite/ld-elf/mbind1a.d: Likewise.
	* testsuite/ld-elf/mbind1b.d: Likewise.
	* testsuite/ld-elf/mbind1c.d: Likewise.
	* testsuite/ld-elf/mbind2a.s: Likewise.
	* testsuite/ld-elf/mbind2b.c: Likewise.
2017-04-04 09:06:04 -07:00
Nick Clifton
82156ab704 readelf: Fix overlarge memory allocation when reading a binary with an excessive number of program headers.
PR binutils/21345
	* readelf.c (get_program_headers): Check for there being too many
	program headers before attempting to allocate space for them.
2017-04-03 12:14:06 +01:00
Nick Clifton
75ec1fdbb7 Fix runtime seg-fault in readelf when parsing a corrupt MIPS binary.
PR binutils/21344
	* readelf.c (process_mips_specific): Check for an out of range GOT
	entry before reading the module pointer.
2017-04-03 11:13:21 +01:00
Nick Clifton
f32ba72991 readelf: Update check for invalid word offsets in ARM unwind information.
PR binutils/21343
	* readelf.c (get_unwind_section_word): Fix snafu checking for
	invalid word offsets in ARM unwind information.
2017-04-03 11:01:45 +01:00
Pip Cet
efdf7a02db Fix minor problems with previous wasm32 binutils commit.
binutils * NEWS: Use "WebAssembly" consistently.
	* testsuite/binutils-all/wasm32/wasm32.exp: Fix copyright notice.
2017-03-31 13:07:01 +01:00
Pip Cet
f96bd6c2d7 Add support for the WebAssembly file format and the wasm32 ELF conversion to gas and the binutils.
binutils * readelf.c: Add support for wasm32 ELF format WebAssembly files.
	(guess_is_rela): Likewise.
	(dump_relocations): Likewise.
	(is_32bit_abs_reloc): Likewise.
	(is_none_reloc_): Likewise.
	* NEWS: Mention the new support.
	* testsuite/lib/binutils-common.exp (is_elf_format): Mark wasm32
	as ELF target.
	(supports_gnu_unique): Mark wasm32 as supporting STB_GNU_UNIQUE.
	* testsuite/binutils-all/nm.exp: Mark wasm32 as requiring .size annotations.
	* testsuite/binutils-all/wasm32: New directory.
	* testsuite/binutils-all/wasm32/create-wasm.d: New file.
	* testsuite/binutils-all/wasm32/create-wasm.s: Likewise.
	* testsuite/binutils-all/wasm32/custom-section.d: Likewise.
	* testsuite/binutils-all/wasm32/custom-section.s: Likewise.
	* testsuite/binutils-all/wasm32/invalid-wasm-1.d: Likewise.
	* testsuite/binutils-all/wasm32/invalid-wasm-1.s: Likewise.
	* testsuite/binutils-all/wasm32/long-sections.d: Likewise.
	* testsuite/binutils-all/wasm32/long-sections.s: Likewise.
	* testsuite/binutils-all/wasm32/parse-wasm.d: Likewise.
	* testsuite/binutils-all/wasm32/parse-wasm.s: Likewise.
	* testsuite/binutils-all/wasm32/parse-wasm-2.d: Likewise.
	* testsuite/binutils-all/wasm32/parse-wasm-2.s: Likewise.
	* testsuite/binutils-all/wasm32/prepared-section.d: Likewise.
	* testsuite/binutils-all/wasm32/prepared-section.s: Likewise.
	* testsuite/binutils-all/wasm32/wasm32.exp: New file, run tests.

gas	* config/tc-wasm32.h: New file: Add WebAssembly assembler target.
	* config/tc-wasm32.c: New file: Add WebAssembly assembler target.
	* Makefile.am: Add WebAssembly assembler target.
	* configure.tgt: Add WebAssembly assembler target.
	* doc/c-wasm32.texi: New file: Start documenting WebAssembly
	assembler.
	* doc/all.texi: Define WASM32.
	* doc/as.texinfo: Add WebAssembly entries.
	* NEWS: Mention the new support.
	* Makefile.in: Regenerate.
	* po/gas.pot: Regenerate.
	* po/POTFILES.in: Regenerate.
	* testsuite/gas/wasm32: New directory.
	* testsuite/gas/wasm32/allinsn.d: New file.
	* testsuite/gas/wasm32/allinsn.s: New file.
	* testsuite/gas/wasm32/illegal.l: New file.
	* testsuite/gas/wasm32/illegal.s: New file.
	* testsuite/gas/wasm32/illegal-2.l: New file.
	* testsuite/gas/wasm32/illegal-2.s: New file.
	* testsuite/gas/wasm32/illegal-3.l: New file.
	* testsuite/gas/wasm32/illegal-3.s: New file.
	* testsuite/gas/wasm32/illegal-4.l: New file.
	* testsuite/gas/wasm32/illegal-4.s: New file.
	* testsuite/gas/wasm32/illegal-5.l: New file.
	* testsuite/gas/wasm32/illegal-5.s: New file.
	* testsuite/gas/wasm32/illegal-6.l: New file.
	* testsuite/gas/wasm32/illegal-6.s: New file.
	* testsuite/gas/wasm32/illegal-7.l: New file.
	* testsuite/gas/wasm32/illegal-7.s: New file.
	* testsuite/gas/wasm32/illegal-8.l: New file.
	* testsuite/gas/wasm32/illegal-8.s: New file.
	* testsuite/gas/wasm32/illegal-9.l: New file.
	* testsuite/gas/wasm32/illegal-9.s: New file.
	* testsuite/gas/wasm32/illegal-10.l: New file.
	* testsuite/gas/wasm32/illegal-10.s: New file.
	* testsuite/gas/wasm32/illegal-11.l: New file.
	* testsuite/gas/wasm32/illegal-11.s: New file.
	* testsuite/gas/wasm32/illegal-12.l: New file.
	* testsuite/gas/wasm32/illegal-12.s: New file.
	* testsuite/gas/wasm32/illegal-13.l: New file.
	* testsuite/gas/wasm32/illegal-13.s: New file.
	* testsuite/gas/wasm32/illegal-14.l: New file.
	* testsuite/gas/wasm32/illegal-14.s: New file.
	* testsuite/gas/wasm32/illegal-15.l: New file.
	* testsuite/gas/wasm32/illegal-15.s: New file.
	* testsuite/gas/wasm32/illegal-16.l: New file.
	* testsuite/gas/wasm32/illegal-16.s: New file.
	* testsuite/gas/wasm32/illegal-17.l: New file.
	* testsuite/gas/wasm32/illegal-17.s: New file.
	* testsuite/gas/wasm32/illegal-18.l: New file.
	* testsuite/gas/wasm32/illegal-18.s: New file.
	* testsuite/gas/wasm32/illegal-19.l: New file.
	* testsuite/gas/wasm32/illegal-19.s: New file.
	* testsuite/gas/wasm32/illegal-20.l: New file.
	* testsuite/gas/wasm32/illegal-20.s: New file.
	* testsuite/gas/wasm32/illegal-21.l: New file.
	* testsuite/gas/wasm32/illegal-21.s: New file.
	* testsuite/gas/wasm32/illegal-22.l: New file.
	* testsuite/gas/wasm32/illegal-22.s: New file.
	* testsuite/gas/wasm32/illegal-24.l: New file.
	* testsuite/gas/wasm32/illegal-24.s: New file.
	* testsuite/gas/wasm32/illegal-25.l: New file.
	* testsuite/gas/wasm32/illegal-25.s: New file.
	* testsuite/gas/wasm32/reloc.d: New file.
	* testsuite/gas/wasm32/reloc.s: New file.
	* testsuite/gas/wasm32/wasm32.exp: New tests for WebAssembly
	architecture.

opcodes * configure.ac: Add (empty) bfd_wasm32_arch target.
	* configure: Regenerate
	* po/opcodes.pot: Regenerate.

include	* opcode/wasm.h: New file to support wasm32 architecture.
	* elf/wasm32.h: Add R_WASM32_32 relocation.

bfd	* elf32-wasm32.c: Add relocation code, two relocs.
	* reloc.c: Add wasm32 relocations.
	* libbfd.h: Regenerate.
	* bfd-in2.h: Regenerate.
	* bfd/po/bfd.pot: Regenerate.
2017-03-30 10:57:21 +01:00
Alan Modra
52be03fd13 PowerPC -Mraw disassembly
This adds -Mraw for PowerPC objdump, a disassembler option to display
the underlying machine instruction rather than aliases.  For example,
"rlwinm" always rather than "rotlwi" when the instruction is
performing a simple rotate.

binutils/
	* doc/binutils.texi (objdump): Document PowerPC -M options.
gas/
	* config/tc-ppc.c (md_parse_option): Reject -mraw.
include/
	* opcode/ppc.h (PPC_OPCODE_RAW): Define.
	(PPC_OPCODE_*): Make them all unsigned long long constants.
opcodes/
	* ppc-dis.c (ppc_opts): Set PPC_OPCODE_PPC for "any" flags.  Add
	"raw" option.
	(lookup_powerpc): Don't special case -1 dialect.  Handle
	PPC_OPCODE_RAW.
	(print_insn_powerpc): Mask out PPC_OPCODE_ANY on first
	lookup_powerpc call, pass it on second.
2017-03-29 22:55:18 +10:30
Andi Kleen
4a14e30646 Add --inlines option to objdump to include scope backtrace of inlined functions when generating source line number information.
* objdump.c (unwind_inlines): Add.
	(option_values): Add OPTION_INLINES.
	(show_line): Unwind inlines if requested.
	(main): Parse OPTION_INLINES.
	(usage): Document --inlines.
	* doc/binutils.texi: Document --inlines.
	* NEWS: Likewise.
2017-03-21 13:05:19 +00:00
Nick Clifton
75d7d2986c Update support for GNU BUILD notes so that version notes can contain extra information, and stack protection notes can contain numeric values.
* readelf.c (print_gnu_build_attribute_name): Allow stack
	protection notes to contain numeric values.  Use a colon rather
	than a space to separate a string name from its values.  Decode
	the numeric value of a stack protection note.
	* objcopy.c (merge_gnu_build_notes): Allow version notes to
	contain extra text after the protocol version number.
2017-03-21 11:48:57 +00:00
Mark Wielaard
39e224f6f9 readelf: Don't error on .debug files with NOBITS .dynamic section.
The fix for PR binutils/17512 added a check for the dynamic segment being
inside the actual ELF file. If not an error message would be produced:

readelf: Error: the dynamic segment offset + size exceeds the size of the file

Unfortunately for separate debuginfo files it is common for the dynamic
segment not being inside the file because the .dynamic section is NOBITS.

Since the check is done unconditionally in process_program_headers and
process_program_headers is always called (to setup dynamic_addr in case
it is needed). The error is produced on any operations done on any .debug
file (even if no program headers or the dynamic segment is used).

If there are section headers then a cross check is done to see if the
.dynamic section is NOBITS in which case dynamic_addr is set to zero
without a warning or error (which is then checked first before any
operation on the dynamic segement is done).

Move the check for the dynamic segment being inside the actual ELF file
after the cross check with the section headers to suppress the error for
.debug files.

binutils/ChangeLog:

	* readelf.c (process_program_headers): Move dynamic_addr check
	after .dynamic section cross check.
2017-03-20 18:19:16 +01:00
Nick Clifton
0dd6ae21da Fix displaying the value associated a GNU BUILD note that uses an ascii name.
* readelf.c (print_gnu_build_attribute_name): Fix off by one error
	printing the value for a build note with an ascii name.
2017-03-17 17:36:51 +00:00
Nick Clifton
a8be5506b6 Add support for a GNU BUILD note type to record the enum size.
include	* elf/common.h (GNU_BUILD_ATTRIBUTE_SHORT_ENUM): New GNU BUILD
	note type.

binutils * readelf.c (print_gnu_build_attribute_name): Add support for
	GNU_BUILD_ATTRIBUTE_SHORT_ENUM.
2017-03-16 16:44:55 +00:00
Nick Clifton
c799a79d66 Try harder to find the correct symbol to associate with OPEN GNU BUILD notes.
* readelf.c (print_gnu_build_attribute_description): Move symbol
	printing code to...
	(print_symbol_for_build_attribute): New function.  ...here.
	Add to find the best symbol to associate with an OPEN note.
	Add code to cache the symbol table and string table, so that they
	are not loaded every time a note is displayed.
	* testsuite/binutils-all/note-2-32.s: Add a function symbol.
	* testsuite/binutils-all/note-2-64.s: Likewise.
	* testsuite/binutils-all/note-2-32.d: Update expected note output.
	* testsuite/binutils-all/note-2-64.d: Likewise.
2017-03-14 12:57:09 +00:00
Alan Modra
5ef2d51bd6 objdump -dS: warn if source is more recent than object
If the source file is more recent than the object file, line number
information in the object may no longer match the source.  So print a
warning message.

	* objdump.c (update_source_path): Add abfd param.  Add struct
	stat vars.  Pass to try_print_file_open.  Warn if source is more
	recent than object.
	(try_print_file_open, slurp_file): Add struct stat param to
	return fstat.
	(show_line): Call update_source_path with bfd.
2017-03-13 21:20:02 +10:30
Chia-Hao Lo
7b5d48229b Make objdump's --wide command line option affect its output of DWARF debug information.
PR binutils/21235
	* objdump.c (main): Set do_wide with --wide.
2017-03-10 16:29:58 +00:00
Nick Clifton
55e22ca83a Add basic recognition of new EM_ ELF machine numbers.
include	* elf/common.h (EM_LANAI): New machine number.
	(EM_BPF): Likewise.
	(EM_WEBASSEMBLY): Likewise.
	Move low value, deprecated, numbers to their numerical
	equivalents.

binutils * readelf.c (get_machine_name): Rearrange switch table in order of
	increasing machine number.  Add missing entries.
2017-03-10 10:50:34 +00:00
H.J. Lu
1fc87489b4 Properly dump NT_GNU_PROPERTY_TYPE_0
Property type and datasz are always 4 bytes for both 32-bit and 64-bit
objects.  Property values for GNU_PROPERTY_X86_ISA_1_USED and
GNU_PROPERTY_X86_ISA_1_NEEDED are 4 bytes for both i386 and x86-64
objects.  We should also check GNU_PROPERTY_LOPROC and
GNU_PROPERTY_LOUSER.

binutils/

	PR binutils/21231
	* readelf.c (decode_x86_isa): Change argument to unsigned int.
	(print_gnu_property_note): Retrieve property type and datasz as
	4-byte integer.  Consolidate property datasz check.  Check
	GNU_PROPERTY_LOPROC and GNU_PROPERTY_LOUSER.
	* testsuite/binutils-all/i386/pr21231a.d: New file.
	* testsuite/binutils-all/i386/pr21231a.s: Likewise.
	* testsuite/binutils-all/i386/pr21231b.d: Likewise.
	* testsuite/binutils-all/i386/pr21231b.s: Likewise.
	* testsuite/binutils-all/x86-64/pr21231a.d: Likewise.
	* testsuite/binutils-all/x86-64/pr21231a.s: Likewise.
	* testsuite/binutils-all/x86-64/pr21231b.d: Likewise.
	* testsuite/binutils-all/x86-64/pr21231b.s: Likewise.

include/

	PR binutils/21231
	* elf/common.h (GNU_PROPERTY_LOPROC): New.
	(GNU_PROPERTY_HIPROC): Likewise.
	(GNU_PROPERTY_LOUSER): Likewise.
	(GNU_PROPERTY_HIUSER): Likewise.
2017-03-08 07:44:17 -08:00
Nick Clifton
79a964dca5 Fix reading numeric values from GNU BUILD NOTEs.
* readelf.c (print_gnu_build_attribute_name): Read byte values
	from the name string as unsigned bytes.
	(process_notes_at): Use memcpy to copy an unterminated name
	string.
2017-03-06 17:21:04 +00:00
Sam Thursfield
1f5345a614 binutils: Fix warning on platforms that don't have asprintf
* configure.ac (AC_CHECK_DECLS): Add asprintf.
	* config.in: Regenerate.
	* configure: Regenerate.
2017-03-06 11:42:30 +10:30
Nick Clifton
05ed43104e Support merging build notes in sections without the SHF_GNU_BUILD_NOTE flag set.
* objcopy.c (is_merged_note_section): Support build note sections
	without the SHF_GNU_BUILD_NOTE section flag set.
2017-03-02 17:10:20 +00:00
Nick Clifton
c871dadee1 Fix snafu parsing GNU_BUILD_NOTEs on ARM and AArch64 architectures.
* readelf.c (print_gnu_build_attribute_description): Use global
	symbols for OPEN attributes if at all possible.
2017-03-02 10:52:51 +00:00
Jan Kratochvil
b451e98a90 New debug_displays_assert
binutils/
2017-03-02  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* dwarf.c (debug_displays_assert): New static assertion.
2017-03-02 10:58:19 +01:00
Jan Kratochvil
d4620bee57 Fix dwarf_section_display_enum regression by DWARF-5
binutils/
2017-03-02  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* dwarf.h (enum dwarf_section_display_enum): Add loclists and rnglists.
2017-03-02 10:06:00 +01:00
Nick Clifton
9ef920e933 Add support for displaying and merging GNU_BUILD_NOTEs.
include	* elf/common.h (SHF_GNU_BUILD_NOTE): Define.
	(NT_GNU_PROPERTY_TYPE_0): Define.
	(NT_GNU_BUILD_ATTRIBUTE_OPEN): Define.
	(NT_GNU_BUILD_ATTRIBUTE_FUN): Define.
	(GNU_BUILD_ATTRIBUTE_TYPE_NUMERIC): Define.
	(GNU_BUILD_ATTRIBUTE_TYPE_STRING): Define.
	(GNU_BUILD_ATTRIBUTE_TYPE_BOOL_TRUE): Define.
	(GNU_BUILD_ATTRIBUTE_TYPE_BOOL_FALSE): Define.
	(GNU_BUILD_ATTRIBUTE_VERSION): Define.
	(GNU_BUILD_ATTRIBUTE_STACK_PROT): Define.
	(GNU_BUILD_ATTRIBUTE_RELRO): Define.
	(GNU_BUILD_ATTRIBUTE_STACK_SIZE): Define.
	(GNU_BUILD_ATTRIBUTE_TOOL): Define.
	(GNU_BUILD_ATTRIBUTE_ABI): Define.
	(GNU_BUILD_ATTRIBUTE_PIC): Define.
	(NOTE_GNU_PROPERTY_SECTION_NAME): Define.
	(GNU_BUILD_ATTRS_SECTION_NAME): Define.
	(GNU_PROPERTY_STACK_SIZE): Define.
	(GNU_PROPERTY_NO_COPY_ON_PROTECTED): Define.
	(GNU_PROPERTY_X86_ISA_1_USED): Define.
	(GNU_PROPERTY_X86_ISA_1_NEEDED): Define.
	(GNU_PROPERTY_X86_ISA_1_486): Define.
	(GNU_PROPERTY_X86_ISA_1_586): Define.
	(GNU_PROPERTY_X86_ISA_1_686): Define.
	(GNU_PROPERTY_X86_ISA_1_SSE): Define.
	(GNU_PROPERTY_X86_ISA_1_SSE2): Define.
	(GNU_PROPERTY_X86_ISA_1_SSE3): Define.
	(GNU_PROPERTY_X86_ISA_1_SSSE3): Define.
	(GNU_PROPERTY_X86_ISA_1_SSE4_1): Define.
	(GNU_PROPERTY_X86_ISA_1_SSE4_2): Define.
	(GNU_PROPERTY_X86_ISA_1_AVX): Define.
	(GNU_PROPERTY_X86_ISA_1_AVX2): Define.
	(GNU_PROPERTY_X86_ISA_1_AVX512F): Define.
	(GNU_PROPERTY_X86_ISA_1_AVX512CD): Define.
	(GNU_PROPERTY_X86_ISA_1_AVX512ER): Define.
	(GNU_PROPERTY_X86_ISA_1_AVX512PF): Define.
	(GNU_PROPERTY_X86_ISA_1_AVX512VL): Define.
	(GNU_PROPERTY_X86_ISA_1_AVX512DQ): Define.
	(GNU_PROPERTY_X86_ISA_1_AVX512BW): Define.

binutils* readelf.c (get_note_type): Add support for GNU_BUILD_NOTEs.
	(get_gnu_elf_note_type): Add support for GNU_PROPERTY_NOTEs.
	(decode_x86_isa): New function.
	(print_gnu_property_note): New function.
	(print_gnu_note): Handle GNU_PROPERTY_NOTEs.
	(print_gnu_build_attribute_description): New function.
	(print_gnu_build_attribute_name): New function.
	(process_note): Add support for GNU_BUILD_NOTEs.
	* objcopy.c (--merge-notes): New command line option.
	(copy_options): Add merge-notes.
	(copy_usage): Likewise.
	(is_merge_note_section): New function.
	(merge_gnu_build_notes): New function.
	(copy_object): Merge note sections if asked to do so.
	(skip_section): Add skip_copy parameter.  Add support for skipping
	merged note sections.
	(copy_relocations_in_section): Update call to skip_section.
	(copy_section): Likewise.
	(copy_main): Add support for merge-notes option.
	* doc/binutils.texi: Document the new option to objcopy.
	* NEWS: Mention the new feature.
	* testsuite/binutils-all/note-2-32.d: New test.  Checks note
	merging on 32-bit targets.
	* testsuite/binutils-all/note-2-32.s: New test source file.
	* testsuite/binutils-all/note-2-64.d: New test.  Like note-2-32.d
	but for 64-bit targets.
	* testsuite/binutils-all/note-2-64.s: New test source file.
	* testsuite/binutils-all/objcopy.exp: Run the new test.
2017-03-01 11:09:46 +00:00
Peter Bergner
65b48a8140 GDB: Add support for the new set/show disassembler-options commands.
This commit adds support to GDB so that it can modify the disassembler-options
value that is passed to the disassembler, similar to objdump's -M option.
Currently, the only supported targets are ARM, PowerPC and S/390, but
adding support for a new target(s) is not difficult.

include/
	* dis-asm.h (disasm_options_t): New typedef.
	(parse_arm_disassembler_option): Remove prototype.
	(set_arm_regname_option): Likewise.
	(get_arm_regnames): Likewise.
	(get_arm_regname_num_options): Likewise.
	(disassemble_init_s390): New prototype.
	(disassembler_options_powerpc): Likewise.
	(disassembler_options_arm): Likewise.
	(disassembler_options_s390): Likewise.
	(remove_whitespace_and_extra_commas): Likewise.
	(disassembler_options_cmp): Likewise.
	(next_disassembler_option): New inline function.
	(FOR_EACH_DISASSEMBLER_OPTION): New macro.

opcodes/
	* disassemble.c Include "safe-ctype.h".
	(disassemble_init_for_target): Handle s390 init.
	(remove_whitespace_and_extra_commas): New function.
	(disassembler_options_cmp): Likewise.
	* arm-dis.c: Include "libiberty.h".
	(NUM_ELEM): Delete.
	(regnames): Use long disassembler style names.
	Add force-thumb and no-force-thumb options.
	(NUM_ARM_REGNAMES): Rename from this...
	(NUM_ARM_OPTIONS): ...to this.  Use ARRAY_SIZE.
	(get_arm_regname_num_options): Delete.
	(set_arm_regname_option): Likewise.
	(get_arm_regnames): Likewise.
	(parse_disassembler_options): Likewise.
	(parse_arm_disassembler_option): Rename from this...
	(parse_arm_disassembler_options): ...to this.  Make static.
	Use new FOR_EACH_DISASSEMBLER_OPTION macro to scan over options.
	(print_insn): Use parse_arm_disassembler_options.
	(disassembler_options_arm): New function.
	(print_arm_disassembler_options): Handle updated regnames.
	* ppc-dis.c: Include "libiberty.h".
	(ppc_opts): Add "32" and "64" entries.
	(ppc_parse_cpu): Use ARRAY_SIZE and disassembler_options_cmp.
	(powerpc_init_dialect): Add break to switch statement.
	Use new FOR_EACH_DISASSEMBLER_OPTION macro.
	(disassembler_options_powerpc): New function.
	(print_ppc_disassembler_options): Use ARRAY_SIZE.
	Remove printing of "32" and "64".
	* s390-dis.c: Include "libiberty.h".
	(init_flag): Remove unneeded variable.
	(struct s390_options_t): New structure type.
	(options): New structure.
	(init_disasm): Rename from this...
	(disassemble_init_s390): ...to this.  Add initializations for
	current_arch_mask and option_use_insn_len_bits_p.  Remove init_flag.
	(print_insn_s390): Delete call to init_disasm.
	(disassembler_options_s390): New function.
	(print_s390_disassembler_options): Print using information from
	struct 'options'.
	* po/opcodes.pot: Regenerate.

binutils/
	* objdump.c (main): Use remove_whitespace_and_extra_commas.

gdb/
	* NEWS: Mention new set/show disassembler-options commands.
	* doc/gdb.texinfo: Document new set/show disassembler-options commands.
	* disasm.c: Include "arch-utils.h", "gdbcmd.h" and "safe-ctype.h".
	(prospective_options): New static variable.
	(gdb_disassembler::gdb_disassembler): Initialize
	m_di.disassembler_options.
	(gdb_buffered_insn_length_init_dis): Initilize di->disassembler_options.
	(get_disassembler_options): New function.
	(set_disassembler_options): Likewise.
	(set_disassembler_options_sfunc): Likewise.
	(show_disassembler_options_sfunc): Likewise.
	(disassembler_options_completer): Likewise.
	(_initialize_disasm): Likewise.
	* disasm.h (get_disassembler_options): New prototype.
	(set_disassembler_options): Likewise.
	* gdbarch.sh (gdbarch_disassembler_options): New variable.
	(gdbarch_verify_disassembler_options): Likewise.
	* gdbarch.c: Regenerate.
	* gdbarch.h: Likewise.
	* arm-tdep.c (num_disassembly_options): Delete.
	(set_disassembly_style): Likewise.
	(arm_disassembler_options): New static variable.
	(set_disassembly_style_sfunc): Convert short style name into long
	option name.  Call set_disassembler_options.
	(show_disassembly_style_sfunc): New function.
	(arm_gdbarch_init): Call set_gdbarch_disassembler_options and
	set_gdbarch_verify_disassembler_options.
	(_initialize_arm_tdep): Delete regnames variable and update callers.
	(arm_disassembler_options): Initialize.
	(disasm_options): New variable.
	(num_disassembly_options): Rename from this...
	(num_disassembly_styles): ...to this.  Compute by scanning through
	disasm_options.
	(valid_disassembly_styles): Initialize using disasm_options.
	Remove calls to parse_arm_disassembler_option, get_arm_regnames and
	set_arm_regname_option.
	Pass show_disassembly_style_sfunc to the "disassembler" setshow command.
	* rs6000-tdep.c (powerpc_disassembler_options): New static variable.
	(rs6000_gdbarch_init): Call set_gdbarch_disassembler_options and
	set_gdbarch_verify_disassembler_options.
	* s390-tdep.c (s390_disassembler_options): New static variable.
	(s390_gdbarch_init):all set_gdbarch_disassembler_options and
	set_gdbarch_verify_disassembler_options.

gdb/testsuite/
	* gdb.arch/powerpc-power.exp: Delete test.
	* gdb.arch/powerpc-power.s: Likewise.
	* gdb.disasm/disassembler-options.exp: New test.
	* gdb.arch/powerpc-altivec.exp: Likewise.
	* gdb.arch/powerpc-altivec.s: Likewise.
	* gdb.arch/powerpc-altivec2.exp: Likewise.
	* gdb.arch/powerpc-altivec2.s: Likewise.
	* gdb.arch/powerpc-altivec3.exp: Likewise.
	* gdb.arch/powerpc-altivec3.s: Likewise.
	* gdb.arch/powerpc-power7.exp: Likewise.
	* gdb.arch/powerpc-power7.s: Likewise.
	* gdb.arch/powerpc-power8.exp: Likewise.
	* gdb.arch/powerpc-power8.s: Likewise.
	* gdb.arch/powerpc-power9.exp: Likewise.
	* gdb.arch/powerpc-power9.s: Likewise.
	* gdb.arch/powerpc-vsx.exp: Likewise.
	* gdb.arch/powerpc-vsx.s: Likewise.
	* gdb.arch/powerpc-vsx2.exp: Likewise.
	* gdb.arch/powerpc-vsx2.s: Likewise.
	* gdb.arch/powerpc-vsx3.exp: Likewise.
	* gdb.arch/powerpc-vsx3.s: Likewise.
	* gdb.arch/arm-disassembler-options.exp: Likewise.
	* gdb.arch/powerpc-disassembler-options.exp: Likewise.
	* gdb.arch/s390-disassembler-options.exp: Likewise.
2017-02-28 12:32:07 -06:00
Nick Clifton
2979a88354 Revert "Add symbol called __nm_<name> to exported symbols created by dlltool."
This reverts commit 47612ae91c.
2017-02-28 16:54:16 +00:00
Jan Kratochvil
9dfd0db952 Fix compilation with GCC 4.4.7.
binutils/
2017-02-27  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Fix compilation with GCC 4.4.7.
	* dwarf.c (display_loclists_list, display_debug_rnglists_list):
	Initialize begin and end.
2017-02-27 23:22:53 +01:00
Rudy Y
47612ae91c Add symbol called __nm_<name> to exported symbols created by dlltool.
PR 20881
	* dlltool.c (secdata): Align .idata$6 on 2 byte boundary.
	(make_one_lib_file): Export a symbol called __nm_<symbol> for use
	with auto-importing.
2017-02-27 15:02:52 +00:00
Alan Modra
3b83ea38cf Fixes for new dw5 test
On some targets, .string does not add a NUL string terminator.

	* testsuite/binutils-all/dw5.S: Replace .string with .asciz.
	Support hpux .comm variant.
	* testsuite/binutils-all/readelf.exp: Define HPUX when assembling
	dw5 test for hppa64-hpux.
2017-02-25 19:13:23 +10:30
Nick Clifton
6b4bf3bc35 Fix snafu with booleans in readelf patch - lack of a program header is not a reason for a function to return false.
(process_program_headers): Fix snafu - if the program headers are
	not available then this is not a cause to fail.
	(process_corefile_note_segments): Likewise.
2017-02-24 18:15:12 +00:00
Nick Clifton
32ec889602 Tidy up readelf's use of boolean values.
* readelf.c (show_name, do_dynamic, do_syms, do_dyn_syms,
	(do_reloc, do_sections, do_section_groups, do_section_details,
	(do_segments, do_unwind, do_using_dynamic, do_header, do_dump,
	(do_version, do_histogram, do_debugging, do_arch, do_notes,
	(do_archive_index, is_32bit_elf, decompress_dumps): Use
	bfd_boolean type.
	(parse_args): Treat the do_* variables as booleans.
	(print_vma): Return an unsigned int.
	(print_symbol): Change width parameter to signed int.
	(is_ia64_vms): Change return type to bfd_boolean.
	(guess_is_rela): Likewise.
	(slurp_rela_relocs): Likewise.
	(slurp_rel_relocs): Likewise.
	(dump_relocations): Likewise.
	(process_file_header): Likewise.
	(get_program_headers): Likewise.
	(process_program_headers): Likewise.
	(process_section_headers): Likewise.
	(process_section_groups): Likewise.
	(dump_ia64_vms_dynamic_fixups): Likewise.
	(dump_ia64_vms_dynamic_relocs): Likewise.
	(process_ia64_vms_dynamic_relocs): Likewise.
	(process_relocs): Likewise.
	(dump_ia64_unwind): Likewise.
	(ia64_process_unwind): Likewise.
	(dump_hppa_unwind): Likewise.
	(slurp_hppa_unwind_table): Likewise.
	(hppa_process_unwind): Likewise.
	(decode_arm_unwind_bytecode): Likewise.
	(decode_tic6x_unwind_bytecode): Likewise.
	(decode_arm_unwind): Likewise.
	(dump_arm_unwind): Likewise.
	(arm_process_unwind): Likewise.
	(process_unwind): Likewise.
	(get_32bit_dynamic_section): Likewise.
	(get_64bit_dynamic_section): Likewise.
	(process_dynamic_section): Likewise.
	(process_version_sections): Likewise.
	(process_symbol_table): Likewise.
	(process_syminfo): Likewise.
	(apply_relocations): Likewise.
	(disassemble_section): Likewise.
	(dump_section_as_strings): Likewise.
	(dump_section_as_bytes): Likewise.
	(load_specific_debug_section): Likewise.
	(load_debug_section): Likewise.
	(display_debug_section): Likewise.
	(process_section_contents): Likewise.
	(process_attributes): Likewise.
	(process_nds32_specific): Likewise.
	(process_gnu_liblist): Likewise.
	(print_core_note): Likewise.
	(print_gnu_note): Likewise.
	(print_v850_note): Likewise.
	(process_netbsd_elf_note): Likewise.
	(print_stapsdt_note): Likewise.
	(print_ia64_vms_note): Likewise.
	(process_note): Likewise.
	(process_notes_at): Likewise.
	(process_corefile_note_segments): Likewise.
	(process_v850_notes): Likewise.
	(process_note_sections): Likewise.
	(process_notes): Likewise.
	(process_arch_specific): Likewise.
	(get_file_header): Likewise.
	(process_object): Likewise.
	(process_archive): Likewise.
	(process_file): Likewise.
	(section_subset): Make static.
	(get_mips_reg_size): Return a signed integer.
	(process_object): Reverse the logic of the return value.
	(process_archive): Likewise.
	(process_file): Likewise.
2017-02-24 14:48:19 +00:00
Maciej W. Rozycki
7bb1ad1738 readelf: Correct version flag formatting
Remove a trailing space or a leading pipe character from version flags
printed with `readelf --version-info'.

For example with the `mips-linux' target we get:

$ cat ver_def.s
	.data
	.globl	new_foo
	.type	new_foo, %object
new_foo:
	.symver	new_foo, foo@@ver_foo
$ cat ver_def.ver
{ global: *foo*; local: *; };
$ as -o ver_def.o ver_def.s
$ ld -e 0 --export-dynamic --version-script=ver_def.ver -o ver_def ver_def.o
$ readelf -V ver_def

Version symbols section '.gnu.version' contains 4 entries:
 Addr: 000000000000007e  Offset: 0x01007e  Link: 2 (.dynsym)
  000:   0 (*local*)       2 (ver_foo)       1 (*global*)      2 (ver_foo)

Version definition section '.gnu.version_d' contains 2 entries:
  Addr: 0x0000000000000088  Offset: 0x010088  Link: 3 (.dynstr)
  000000: Rev: 1  Flags: BASE   Index: 1  Cnt: 1  Name: ver_def
  0x001c: Rev: 1  Flags: none  Index: 2  Cnt: 1  Name: ver_foo
$

which includes an unnecessary space after `BASE'; both call sites
already provide suitable separation from output that follows.  Also if
only unknown flags were present, then lone `| <unknown>' would be
printed.

	binutils/
	* readelf.c (get_ver_flags): Tidy the formatting of the string
	returned
2017-02-24 13:49:55 +00:00
Maciej W. Rozycki
5235cd6861 readelf: Make version section index sum unsigned
Make `isum' unsigned like data it is calculated from.

	binutils/
	* readelf.c (process_version_sections) <SHT_GNU_verdef>: Make
	`isum' unsigned.
	<SHT_GNU_verneed>: Likewise.
2017-02-24 13:49:11 +00:00
Maciej W. Rozycki
c9f02c3e29 readelf: Fix incorrect "Version definition past end of section" message
Fix a commit 74e1a04b97 ("More fixes for reading corrupt ELF files.")
`readelf --version-info' regression that caused "Version definition past
end of section" to be always printed at the end, even with good section
data.

For example with the `mips-linux' target we get:

$ cat ver_def.s
	.data
	.globl	new_foo
	.type	new_foo, %object
new_foo:
	.symver	new_foo, foo@@ver_foo
$ cat ver_def.ver
{ global: *foo*; local: *; };
$ as -o ver_def.o ver_def.s
$ ld -e 0 --export-dynamic --version-script=ver_def.ver -o ver_def ver_def.o
$ readelf -V ver_def

Version symbols section '.gnu.version' contains 4 entries:
 Addr: 000000000000007e  Offset: 0x01007e  Link: 2 (.dynsym)
  000:   0 (*local*)       2 (ver_foo)       1 (*global*)      2 (ver_foo)

Version definition section '.gnu.version_d' contains 2 entries:
  Addr: 0x0000000000000088  Offset: 0x010088  Link: 3 (.dynstr)
  000000: Rev: 1  Flags: BASE   Index: 1  Cnt: 1  Name: ver_def
  0x001c: Rev: 1  Flags: none  Index: 2  Cnt: 1  Name: ver_foo
  Version definition past end of section
$

The cause is the `if (idx + ent.vd_next <= idx)' condition introduced to
ensure forward progress, which however always triggers for good version
definition section data as the last entry will have its `vd_next' value
set to 0.

Adjust the condition then, to say `if (idx + ent.vd_next < idx)' instead
and to ensure forward progress limit the number of entries processed to
the size of the version definition section, removing the problematic
message from output quoted above, while ensuring the original PR 17531
test case is still handled gracefully.

Add a suitable test case so that we have `readelf --version-info'
coverage; due to the lack of infrastructure needed to run the linker in
the `binutils' test suite and limited justification to implement it add
a new `readelf.exp' script to the `ld' test suite instead, intended to
gather any `readelf' test cases that require the linker to be run.  If
ever we decide to have linker infrastructure added to the `binutils'
test suite, then the script can be moved between the test suites.

	binutils/
	* readelf.c (process_version_sections) <SHT_GNU_verdef>: Limit
	the number of entries processed by the section size.  Don't
	break out of the loop if `ent.vd_next' is 0.

	ld/
	* testsuite/ld-elf/ver_def.d: New test.
	* testsuite/ld-elf/ver_def.ld: New test linker script.
	* testsuite/ld-elf/ver_def.ver: New test version script.
	* testsuite/ld-elf/ver_def.s: New test source.
	* testsuite/ld-elf/readelf.exp: New test script.
2017-02-24 13:48:10 +00:00
Jan Kratochvil
a567769b81 DWARF-5: testcase
binutils/
2017-02-23  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* testsuite/binutils-all/dw5.S: New file.
	* testsuite/binutils-all/dw5.W: New file.
	* testsuite/binutils-all/readelf.exp (readelf -wiaoRlL): New test.
2017-02-23 22:58:45 +01:00
Jan Kratochvil
2f6cd5918e DWARF-5: DW_FORM_data16
binutils/
2017-02-23  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* dwarf.c (read_and_display_attr_value): Support DW_FORM_data16.
2017-02-23 22:58:20 +01:00
Jan Kratochvil
7a7e1061d4 DWARF-5: Macros
binutils/
2017-02-23  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* dwarf.c (display_debug_macro): Support DWARF-5.  Rename
	DW_MACRO_GNU_*.
2017-02-23 22:57:52 +01:00
Jan Kratochvil
bc0a77d2b1 DWARF-5: call sites
binutils/
2017-02-23  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* dwarf.c (decode_location_expression): Support DW_OP_implicit_pointer,
	DW_OP_const_type, DW_OP_regval_type, DW_OP_deref_type, DW_OP_convert
	and DW_OP_reinterpret.
	(read_and_display_attr_value): Support DW_AT_call_value,
	DW_AT_call_data_value, DW_AT_call_target and
	DW_AT_call_target_clobbered.
2017-02-23 22:57:22 +01:00
Jan Kratochvil
77145576fa DWARF-5 basic functionality
binutils/
2017-02-23  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* dwarf.c (fetch_indirect_line_string): New function.
	(abbrev_attr): New field implicit_const.
	(add_abbrev_attr): New parameter implicit_const.
	(process_abbrev_section): Support DW_FORM_implicit_const.
	(decode_location_expression): Support DW_OP_entry_value.
	(read_and_display_attr_value): Add parameter implicit_const.  Support
	DW_FORM_line_strp and DW_FORM_implicit_const.
	(read_and_display_attr): Add parameter implicit_const.
	(process_debug_info): Support line_str and DWARF-5.
	(read_debug_line_header): Support DWARF-5.
	(display_formatted_table): New function.
	(display_debug_lines_raw): New parameter file.  Support DWARF-5.
	(display_debug_lines_decoded): New parameter fileptr.  Support DWARF-5.
	(display_debug_lines): Pass file parameter.
	(display_debug_macro): Update read_and_display_attr_value caller.
	(display_debug_abbrev): Support DW_FORM_implicit_const.
	(display_loclists_list): New function.
	(display_loc_list): Support .debug_loclists.
	(display_debug_ranges_list): New function from display_debug_ranges.
	(display_debug_rnglists_list): New function.
	(display_debug_ranges): Support .debug_rnglists.
	(debug_displays): Add .debug_line_str, .debug_loclists and
	.debug_rnglists.
	* dwarf.h: Include dwarf2.h
	(DWARF2_Internal_LineInfo): Add li_offset_size.
	(DWARF2_Internal_CompUnit): Add cu_unit_type.
	(enum dwarf_section_display_enum): Add line_str.
	* readelf.c (process_section_headers): Add rnglists and loclists.
2017-02-23 22:56:47 +01:00
Jan Kratochvil
ef0b5f1c69 DWARF attrs: add delimiter
binutils/
2017-02-23  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* dwarf.c (display_block): Add parameter delimiter.
	(decode_location_expression): Update display_block callers.
	(read_and_display_attr_value): Add parameter delimiter.
	(read_and_display_attr, display_debug_macro): Update
	read_and_display_attr_value caller.
2017-02-23 22:54:00 +01:00
Jan Kratochvil
359ca075e7 dwarf.c: Use more dwarf_vma
binutils/
2017-02-23  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* dwarf.c (display_loc_list): Use dwarf_vma for offset, base_address
	and off.
	(display_loc_list_dwo): Use dwarf_vma for offset.
	(display_debug_loc): Use dwarf_vma for offset, base_address.
	(struct range_entry, range_entry_compar): Use dwarf_vma for
	ranges_offset.
	(display_debug_ranges): Use dwarf_vma for ranges_offset, offset and
	base_address.
2017-02-23 21:37:31 +01:00
Nick Clifton
60abdbedb2 Add support to readelf for displaying gnu attributes in architectures not known to support them.
* readelf.c (display_tag_value): Use an explicit signed type for
	the tag parameter.
	(display_gnu_attributes): Use an unsigned integer type for
	attribute tags.
	(display_power_gnu_attribute): Likewise.
	(display_s390_gnu_attribute): Likewise.
	(display_sparc_hwcaps): Likewise.
	(display_sparc_hwcaps2): Likewise.
	(display_sparc_gnu_attribute): Likewise.
	(display_mips_gnu_attribute): Likewise.
	(display_tic6x_attribute): Likewise.
	(display_raw_attribute): Likewise.
	(process_attributes): Likewise.
	(process_arm_specific): Delete redundant function.
	(process_power_specific): Likewise.
	(process_s390_specific): Likewise.
	(process_sparc_specific): Likewise.
	(process_tic6x_specific): Likewise.
	(process_msp430x_specific): Likewise.
	(display_public_gnu_attributes): New function.  Displays known
	information about an unknown gnu attribute.
	(display_generic_attribute): New function.  Calls
	display_tag_value for non-nul tags.
	(process_arch_specific): Call process_attributes even for
	architectures not known to specifically support gnu attributes.
2017-02-23 13:45:21 +00:00
Jan Kratochvil
0502a2b49c Display user op byte
binutils/
2017-02-22  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* dwarf.c (decode_location_expression): Display also OP.
2017-02-22 20:22:59 +01:00
Maciej W. Rozycki
233f82cfb4 readelf: Restore a lost new line in version information
Fix a commit 74e1a04b97 ("More fixes for reading corrupt ELF files.")
`readelf --version-info' output formatting regression where a dropped
new line caused section header information from the `.gnu.version_d'
version definition section to be printed on the same line as this
section's first entry.

For example with the `mips-linux' target we get:

$ cat ver_def.s
	.data
	.globl	new_foo
	.type	new_foo, %object
new_foo:
	.symver	new_foo, foo@@ver_foo
$ cat ver_def.ver
{ global: *foo*; local: *; };
$ as -o ver_def.o ver_def.s
$ ld -e 0 --export-dynamic --version-script=ver_def.ver -o ver_def ver_def.o
$ readelf -V ver_def

Version symbols section '.gnu.version' contains 4 entries:
 Addr: 000000000000007e  Offset: 0x01007e  Link: 2 (.dynsym)
  000:   0 (*local*)       2 (ver_foo)       1 (*global*)      2 (ver_foo)

Version definition section '.gnu.version_d' contains 2 entries:
  Addr: 0x0000000000000088  Offset: 0x010088  Link: 3 (.dynstr)  000000: Rev: 1  Flags: BASE   Index: 1  Cnt: 1  Name: ver_def
  0x001c: Rev: 1  Flags: none  Index: 2  Cnt: 1  Name: ver_foo
  Version definition past end of section
$

Add the new line then, to get:

$ readelf -V ver_def

Version symbols section '.gnu.version' contains 4 entries:
 Addr: 000000000000007e  Offset: 0x01007e  Link: 2 (.dynsym)
  000:   0 (*local*)       2 (ver_foo)       1 (*global*)      2 (ver_foo)

Version definition section '.gnu.version_d' contains 2 entries:
  Addr: 0x0000000000000088  Offset: 0x010088  Link: 3 (.dynstr)
  000000: Rev: 1  Flags: BASE   Index: 1  Cnt: 1  Name: ver_def
  0x001c: Rev: 1  Flags: none  Index: 2  Cnt: 1  Name: ver_foo
  Version definition past end of section
$

instead.

	binutils/
	* readelf.c (process_version_sections) <SHT_GNU_verdef>: Print a
	new line between the heading and the first version definition
	entry.
2017-02-22 18:16:28 +00:00
Nick Clifton
43a444f9c5 Fix another memory access error in readelf when parsing a corrupt binary.
PR binutils/21156
	* dwarf.c (cu_tu_indexes_read): Move into...
	(load_cu_tu_indexes): ... here.  Change the variable into
	tri-state.  Change the function into boolean, returning
	false if the indicies could not be loaded.
	(find_cu_tu_set): Return NULL if the indicies could not be
	loaded.
2017-02-20 14:40:39 +00:00
Nick Clifton
b814a36d34 Fix illegal memory accesses in readelf when parsing a corrupt binary.
PR binutils/21156
	* readelf.c (find_section_in_set): Test for invalid section
	indicies.
2017-02-17 15:59:45 +00:00