2020-01-13 00:40:41 +01:00
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2020-01-13 Alan Modra <amodra@gmail.com>
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* vms-alpha.c (_bfd_vms_slurp_egsd): Ensure minimum size even
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for "ignored" records.
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Memory leaks and ineffective bounds checking in wasm_scan
It's always a bad idea to perform arithmetic on an unknown value read
from an object file before comparing against bounds. Code like the
following attempting to bounds check "len", a 64-bit value, isn't
effective because the pointer arithmetic ignores the high 32 bits when
compiled for a 32-bit host.
READ_LEB128 (len, p, end);
if (p + len < p || p + len > end)
goto error_return;
Instead, perform any arithmetic on known values where we don't need to
worry about overflows:
READ_LEB128 (len, p, end);
if (len > (size_t) (end - p))
goto error_return;
I'll note that this check does do things the right way:
READ_LEB128 (symcount, p, end);
/* Sanity check: each symbol has at least two bytes. */
if (symcount > payload_size / 2)
return FALSE;
"symcount * 2 > payload_size" would be wrong since the multiply could
overflow.
* wasm-module.c (wasm_scan_name_function_section): Formatting.
Delete asect name check. Move asect NULL check to wasm_object_p.
Correct bounds check of sizes against end. Replace uses of
bfd_zalloc with bfd_alloc, zeroing only necessary bytes. Use
just one bfd_release.
(wasm_scan): Don't use malloc/strdup for section names,
bfd_alloc instead. Simplify code prefixing section name.
Formatting. Don't attempt to free memory here..
(wasm_object_p): ..do so here. Formatting.
2020-01-12 22:42:18 +01:00
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2020-01-13 Alan Modra <amodra@gmail.com>
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* wasm-module.c (wasm_scan_name_function_section): Formatting.
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Delete asect name check. Move asect NULL check to wasm_object_p.
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Correct bounds check of sizes against end. Replace uses of
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bfd_zalloc with bfd_alloc, zeroing only necessary bytes. Use
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just one bfd_release.
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(wasm_scan): Don't use malloc/strdup for section names,
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bfd_alloc instead. Simplify code prefixing section name.
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Formatting. Don't attempt to free memory here..
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(wasm_object_p): ..do so here.
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2020-01-09 18:20:56 +01:00
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2020-01-10 Szabolcs Nagy <szabolcs.nagy@arm.com>
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PR ld/22269
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* elf32-arm.c (elf32_arm_final_link_relocate): Use
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UNDEFWEAK_NO_DYNAMIC_RELOC.
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(allocate_dynrelocs_for_symbol): Likewise.
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2020-01-10 14:48:57 +01:00
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2020-01-10 Tamar Christina <tamar.christina@arm.com>
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PR 25210
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* elfnn-aarch64.c (_bfd_aarch64_create_stub_section): Remove elfclass.
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2020-01-08 21:11:25 +01:00
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2020-01-10 Alan Modra <amodra@gmail.com>
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* coff-alpha.c (alpha_ecoff_object_p): Calculate size in bfd_size_type.
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2020-01-09 16:49:08 +01:00
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2020-01-09 Nick Clifton <nickc@redhat.com>
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PR 25221
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* bfd.c (bfd_convert_section_contents): Check for a compress
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header size that is larger than the actual section size.
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2020-01-08 02:06:01 +01:00
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2020-01-08 Alan Modra <amodra@gmail.com>
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PR 25351
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* elflink.c (bfd_elf_final_link): Call _bfd_fix_excluded_sec_syms
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after removing sections.
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2020-01-07 00:34:50 +01:00
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2020-01-06 Jim Wilson <jimw@sifive.com>
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PR 25205
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* elfnn-riscv.c (riscv_elf_relocate_section) <R_RISCV_CALL>: Add
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check for !bfd_link_pic (info).
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<R_RISCV_CALL_PLT>: Move next to R_RISCV_CALL.
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<R_RISCV_JAL>: Add comment.
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(_bfd_riscv_relax_section): For plt.offset check, add check for
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bfd_link_pic (info). Add comment.
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2020-01-06 10:21:22 +01:00
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2020-01-06 Alan Modra <amodra@gmail.com>
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* format.c (bfd_check_format_matches): Ignore bfd_error on target
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match failures. Don't init to bfd_error_wrong_format before
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calling _bfd_check_format.
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2020-01-06 08:59:14 +01:00
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2020-01-06 Alan Modra <amodra@gmail.com>
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* vms-alpha.c (_bfd_vms_push, _bfd_vms_pop): Return pass/fail
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status rather than exiting on stack overflow or underflow.
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(_bfd_vms_slurp_etir): Adjust to suit.
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2020-01-06 07:42:51 +01:00
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2020-01-06 Alan Modra <amodra@gmail.com>
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* som.c (som_bfd_fill_in_ar_symbols): Bounds check som_dict index.
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Basic error checking for mach-o
Fixes lots of places the fuzzers are going to find, and the one they
already hit.
* mach-o.c (bfd_mach_o_read_dylinker): Don't read past end of
command. Check name offset is within command.
(bfd_mach_o_read_dylib, bfd_mach_o_read_prebound_dylib),
(bfd_mach_o_read_prebind_cksum, bfd_mach_o_read_twolevel_hints),
(bfd_mach_o_read_fvmlib, bfd_mach_o_read_dysymtab),
(bfd_mach_o_read_symtab, bfd_mach_o_read_uuid),
(bfd_mach_o_read_linkedit, bfd_mach_o_read_str),
(bfd_mach_o_read_dyld_info, bfd_mach_o_read_version_min),
(bfd_mach_o_read_encryption_info, bfd_mach_o_read_source_version),
(bfd_mach_o_read_encryption_info_64, bfd_mach_o_read_main),
(bfd_mach_o_read_note, bfd_mach_o_read_build_version),
(bfd_mach_o_read_segment): Similarly.
(bfd_mach_o_read_thread): Properly bound check thread struct.
Don't repeat checks on second loop.
(bfd_mach_o_read_command): Fail on invalid command length.
2020-01-06 00:31:55 +01:00
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2020-01-06 Alan Modra <amodra@gmail.com>
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* mach-o.c (bfd_mach_o_read_dylinker): Don't read past end of
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command. Check name offset is within command.
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(bfd_mach_o_read_dylib, bfd_mach_o_read_prebound_dylib),
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(bfd_mach_o_read_prebind_cksum, bfd_mach_o_read_twolevel_hints),
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(bfd_mach_o_read_fvmlib, bfd_mach_o_read_dysymtab),
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(bfd_mach_o_read_symtab, bfd_mach_o_read_uuid),
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(bfd_mach_o_read_linkedit, bfd_mach_o_read_str),
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(bfd_mach_o_read_dyld_info, bfd_mach_o_read_version_min),
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(bfd_mach_o_read_encryption_info, bfd_mach_o_read_source_version),
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(bfd_mach_o_read_encryption_info_64, bfd_mach_o_read_main),
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(bfd_mach_o_read_note, bfd_mach_o_read_build_version),
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(bfd_mach_o_read_segment): Similarly.
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(bfd_mach_o_read_thread): Properly bound check thread struct.
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Don't repeat checks on second loop.
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(bfd_mach_o_read_command): Fail on invalid command length.
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2020-01-02 08:09:32 +01:00
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2020-01-04 Alan Modra <amodra@gmail.com>
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* format.c (bfd_check_format_matches): Add preserve_match.
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Save initial bfd state in "preserve", matched bfd state in
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"preserve_match". Save just the first match. Release
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bfd_alloc memory. Restore and finish preserved state as
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appropriate on all function exit paths.
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2019-12-30 23:25:08 +01:00
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2020-01-04 Alan Modra <amodra@gmail.com>
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* mmo.c (mmo_mkobject): Allocate tdata with bfd_zalloc.
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2020-01-01 00:58:42 +01:00
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2020-01-04 Alan Modra <amodra@gmail.com>
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* coffgen.c (coff_real_object_p): Free malloc'd memory on target
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match too.
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2020-01-03 17:17:53 +01:00
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2020-01-03 Nick Clifton <nickc@redhat.com>
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PR 25307
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(bfd_pef_parse_function_stubs): Correct the test that ensures that
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there is enough data remaining in the code buffer before
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attempting to read a function stub.
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2020-01-03 15:41:02 +01:00
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2020-01-03 Nick Clifton <nickc@redhat.com>
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PR 25308
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* elf-properties.c (_bfd_elf_convert_gnu_properties): Check the
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return value from bfd_malloc.
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* elf32-arm.c (bfd_elf32_arm_vfp11_fix_veneer_locations): Likewise.
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(bfd_elf32_arm_stm32l4xx_fix_veneer_locations): Likewise.
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(elf32_arm_filter_cmse_symbols): Likewise.
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(elf32_arm_write_section): Likewise.
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* mach-o.c (bfd_mach_o_core_fetch_environment): Likewise.
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(bfd_mach_o_follow_dsym): Likewise.
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* pef.c (bfd_pef_print_loader_section): Likewise.
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(bfd_pef_scan_start_address): Likewise.
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(bfd_pef_parse_function_stubs): Likewise.
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(bfd_pef_parse_symbols): Likewise.
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2020-01-03 12:21:00 +01:00
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2020-01-03 Sergei Trofimovich <siarheit@google.com>
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* elfnn-ia64.c (elfNN_ia64_merge_private_bfd_data): don't fail
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on binary inputs ld/PR25316.
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(is_ia64_elf): new helper to filter on ia64 objects.
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2020-01-03 10:11:50 +01:00
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2020-01-03 Jan Beulich <jbeulich@suse.com>
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* mach-o.c (cpusubtype, bfd_mach_o_header_p): Insert underscore
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in parameter names.
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(bfd_mach_o_scan): Insert underscore in two variable names.
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2020-01-02 15:10:40 +01:00
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2020-01-02 Sergey Belyashov <sergey.belyashov@gmail.com>
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* Makefile.am: Add z80-elf target support.
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* configure.ac: Likewise.
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* targets.c: Likewise.
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* Makefile.in: Regenerate.
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* configure: Regenerate.
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* config.bfd: Add z80-elf target support and new arches: ez80 and
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z180.
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* elf32-z80.c: New file.
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* archures.c: Add new z80 architectures: eZ80 and Z180.
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* coffcode.h: Likewise.
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* cpu-z80.c: Likewise.
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* coff-z80.c: Add new relocations for Z80 target and local label
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check.
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* reloc.c: Add new relocs.
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* bfd-in2.h: Regenerate.
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* libbfd.h: Regenerate.
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2020-01-02 15:06:01 +01:00
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2020-01-02 Tamar Christina <tamar.christina@arm.com>
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PR 25210
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PR 24753
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* elfnn-aarch64.c (_bfd_aarch64_create_stub_section): Set ELF class.
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2020-01-01 09:22:19 +01:00
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2020-01-01 Alan Modra <amodra@gmail.com>
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Update year range in copyright notice of all files.
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2020-01-01 08:37:11 +01:00
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For older changes see ChangeLog-2019
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2016-01-01 11:44:31 +01:00
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2020-01-01 08:37:11 +01:00
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Copyright (C) 2020 Free Software Foundation, Inc.
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2016-01-01 11:44:31 +01:00
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Copying and distribution of this file, with or without modification,
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are permitted in any medium without royalty provided the copyright
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notice and this notice are preserved.
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Local Variables:
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mode: change-log
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left-margin: 8
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fill-column: 74
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version-control: never
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End:
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