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16319 Commits

Author SHA1 Message Date
Alan Modra
26009aa763 ubsan elfnn-aarch64.c:7142 shift exponent 32 is too large 
* elfnn-aarch64.c (elfNN_aarch64_relocate_section): Correct type
	of constant shifted left.
 2020-09-02 16:30:42 +09:30
Alan Modra
2f26cc79cc ubasn: elf32-pru.c:570 left shift of negative value 
* elf32-pru.c (pru_elf32_do_ldi32_relocate): Use an unsigned
	type for "relocation".
 2020-09-02 16:30:42 +09:30
GDB Administrator
7d0a7dce39 Automatic date update in version.in 2020-09-02 00:00:09 +00:00
Alan Modra
821e059c26 arm: ubsan: shift exponent 4G 
* reloc.c (N_ONES): Handle N=0.
	* elf32-arm.c (elf32_arm_howto_table_1): Set complain_overflow_dont
	for R_ARM_TLS_DESCSEQ and R_ARM_THM_TLS_DESCSEQ.
 2020-09-01 16:02:48 +09:30
Alan Modra
f911bb2201 PR26429 UBSAN: elf32-arm.c load /store misaligned address 
PR 26429
	* elf32-arm.c (elf32_arm_allocate_local_sym_info): Allocate arrays
	in descending order of alignment.
 2020-09-01 16:02:48 +09:30
Alan Modra
00c91124d4 PR26423 UBSAN: elf32-arm.c:10237 left shift cannot be represented 
PR 26423
	* elf32-arm.c (calculate_group_reloc_mask): Use 3u in shift.
 2020-09-01 16:02:48 +09:30
GDB Administrator
6a42ec96ca Automatic date update in version.in 2020-09-01 00:00:09 +00:00
Alan Modra
1174d92070 PR26493 UBSAN: elfnn-riscv.c left shift of negative value 
include/
	PR 26493
	* opcode/riscv.h (OP_MASK_CSR, OP_MASK_CUSTOM_IMM)
	(OP_MASK_FUNCT7, OP_MASK_RS3): Make unsigned.
bfd/
	PR 26493
	* elfnn-riscv.c (riscv_make_plt_header): Cast PLT_HEADER_SIZE to
	unsigned when using with RISCV_ITYPE.
	(_bfd_riscv_relax_call): Use an unsigned foff.
 2020-08-31 20:28:10 +09:30
Alan Modra
227d539b17 PR26476, PR26477 UBSAN: elfxx-mips.c:2695,5370 cannot be represented 
PR 26476
	PR 26477
	* elfxx-mips.c (CRINFO_CTYPE, CRINFO_RTYPE, CRINFO_DIST2TO),
	(CRINFO_RELVADDR): Make unsigned.
	(mips_elf_nullify_got_load): Use unsigned constant when shifting
	into sign bit.
 2020-08-31 20:28:10 +09:30
Alan Modra
1a211fc7d8 PR26466 UBSAN: elf32-mep.c:300 left shift of negative value 
PR 26466
	* mep-relocs.pl (emit_apply): Handle HI16S adjustment.  Use "u"
	variable and rewrite signed overflow check.
	* elf32-mep.c: Regenerate.
	(mep_final_link_relocate): Delete "s".
 2020-08-31 20:28:10 +09:30
Alan Modra
108f6f97bd PR26461 UBSAN: elfxx-ia64.c:747 cannot be represented 
PR 26461
	* elfxx-ia64.c (ia64_elf_install_value): Make expressions unsigned
	that might shift values into sign bit.
 2020-08-31 20:28:10 +09:30
Alan Modra
f2173852cf PR26445 UBSAN: elf32-csky.c:4115 left shift of negative value 
PR 26445
	* elf32-csky.c (csky_relocate_contents): Make relocation a bfd_vma,
	and similarly for variables dealing with overflow.
 2020-08-31 20:28:09 +09:30
Alan Modra
c1f138f955 PR26442 UBSAN: elf32-crx.c:512 cannot be represented in int 
PR 26442
	* elf32-crx.c (crx_elf_final_link_relocate): Calculate reloc_bits
	without undefined behaviour.  Tidy excess casts.
 2020-08-31 20:28:09 +09:30
Alan Modra
8f383897b6 mn10300: ubsan: shift exponent too large 
* elf-m10300.c (mn10300_elf_relax_delete_bytes): Calculate
	alignment from reloc addend after reloc type R_MN10300_ALIGN is
	found.
 2020-08-31 20:28:08 +09:30
GDB Administrator
18856f435e Automatic date update in version.in 2020-08-31 00:00:07 +00:00
Alan Modra
34d8e6d0c5 PR26435, PR26436 UBSAN: elf32-cr16.c:928 left shift 
PR 26435
	PR 26436
	* elf32-cr16.c (cr16_elf_final_link_relocate): Calculate reloc_bits
	without undefined behaviour.
 2020-08-30 19:37:15 +09:30
GDB Administrator
c44ea3aef6 Automatic date update in version.in 2020-08-30 00:00:07 +00:00
Nick Clifton
e6f04d55f6 Include members in the variable table used when resolving DW_AT_specification tags. 
PR 26520
	* dwarf2.c (scan_unit_for_symbols): Add member entries to the
	variable table.
 2020-08-29 08:03:15 +01:00
Alan Modra
55b8e31a7a correct pr number in changelog 2020-08-29 13:58:47 +09:30
Alan Modra
736c9875c0 PR26459 UBSAN: elfnn-ia64.c:1945 null pointer bsearch 
PR 26495
	* elfnn-ia64.c (get_dyn_sym_info): Don't bsearch or look at last
	element when count is zero.  bfd_realloc when shrinking.
 2020-08-29 13:16:42 +09:30
GDB Administrator
9b5f4ffe1b Automatic date update in version.in 2020-08-29 00:00:09 +00:00
Alan Modra
07319accdf PR26418 UBSAN: cache.c:386 null pointer fwrite 
And some more.

	PR 26418
	* ecofflink.c (bfd_ecoff_write_accumulated_debug): Don't write
	zero size buffers.
 2020-08-28 23:15:20 +09:30
Alan Modra
7ca371dba5 PR26418 UBSAN: cache.c:386 null pointer fwrite 
The previous "fix" tested the wrong value.

	PR 26418
	* ecofflink.c (WRITE): Really don't write zero size chunks.
 2020-08-28 21:59:29 +09:30
Tuckker
1e597a8997 Prevent the linker from overestimating the alignment requirement of common symbols on targets with octets that are larger than one byte. 
PR 26543
	* linker.c (bfd_generic_define_common_symbol): Force the alignment
	to 1 if the section has now alignment requirement.
 2020-08-28 13:27:16 +01:00
Cooper Qu
0861f561eb CSKY: Support attribute section. 
bfd
        * elf32-csky.c (csky_archs): Fix arch names.
        (csky_find_arch_with_name): New.
        (elf32_csky_merge_attributes): New.
        (csky_elf_merge_private_bfd_data): Add process of merge
        attribute section.
        (elf32_csky_obj_attrs_arg_type): New.
        (elf32_csky_obj_attrs_handle_unknown): New.
        (elf_backend_obj_attrs_vendor): Define.
        (elf_backend_obj_attrs_section): Define.
        (elf_backend_obj_attrs_arg_type): Define.
        (elf_backend_obj_attrs_section_type): Define.

binutils/
        * readelf.c (get_csky_section_type_name): New.
        (get_section_type_name): Add handler for CSKY.
        (display_csky_attribute): New.
        (process_arch_specific): Add handler for CSKY.
        * testsuite/binutils-all/strip-3.d: Remove .csky.attributes
        section.

elfcpp/
        * elfcpp.h (enum SHT): New enum SHT_CSKY_ATTRIBUTES.

gas/
        * gas/config/tc-csky.c (md_begin): Set attributes.
        (isa_flag): Change type to unsigned 64 bits.
        (struct csky_cpu_info): Likewise.
        (struct csky_macro_info): Likewise.
        (set_csky_attribute): New.
        * testsuite/gas/csky/802j.d: Ignore .csky.attributes section.
        * testsuite/gas/csky/all.d: Likewise.
        * testsuite/gas/csky/bsr1.d: Likewise.
        * testsuite/gas/csky/csky_vdsp.d: Likewise.
        * testsuite/gas/csky/cskyv2_all.d: Likewise.
        * testsuite/gas/csky/cskyv2_ck803r2.d: Likewise.
        * testsuite/gas/csky/cskyv2_ck860.d: Likewise.
        * testsuite/gas/csky/cskyv2_dsp.d: Likewise.
        * testsuite/gas/csky/cskyv2_elrw.d: Likewise.
        * testsuite/gas/csky/cskyv2_float.d: Likewise.
        * testsuite/gas/csky/enhance_dsp.d: Likewise.
        * testsuite/gas/csky/java.d: Likewise.
        * testsuite/gas/csky/v1_float.d: Likewise.
        * testsuite/gas/csky/v2_float_part1.d: Likewise.
        * testsuite/gas/csky/v2_float_part2.d: Likewise.
        * testsuite/gas/csky/v2_tls_gd.d: Likewise.
        * testsuite/gas/csky/v2_tls_ie.d: Likewise.
        * testsuite/gas/csky/v2_tls_ld.d: Likewise.
        * testsuite/gas/csky/v2_tls_le.d: Likewise.
        * testsuite/gas/elf/elf.exp: Add handler for CSKY.
        * testsuite/gas/elf/section2.e-csky: New.

include/
        * elf/csky.h (SHT_CSKY_ATTRIBUTES): Define.
        (Tag_CSKY_ARCH_NAME): New enum constant.
        (Tag_CSKY_CPU_NAME): Likewise.
        (Tag_CSKY_ISA_FLAGS): Likewise.
        (Tag_CSKY_DSP_VERSION): Likewise.
        (Tag_CSKY_VDSP_VERSION): Likewise.
        (Tag_CSKY_FPU_VERSION): Likewise.
        (Tag_CSKY_FPU_ABI): Likewise.
        (Tag_CSKY_FPU_ROUNDING): Likewise.
        (Tag_CSKY_FPU_DENORMAL): Likewise.
        (Tag_CSKY_FPU_Exception): Likewise.
        (Tag_CSKY_FPU_NUMBER_MODULE): Likewise.
        (Tag_CSKY_FPU_HARDFP): Likewise.
        (Tag_CSKY_MAX): Likewise.
        (VAL_CSKY_DSP_VERSION_EXTENSION): Likewise.
        (VAL_CSKY_DSP_VERSION_2): Likewise.
        (VAL_CSKY_VDSP_VERSION_1): Likewise.
        (VAL_CSKY_VDSP_VERSION_2): Likewise.
        (VAL_CSKY_FPU_ABI_SOFT): Likewise.
        (VAL_CSKY_FPU_ABI_SOFTFP): Likewise.
        (VAL_CSKY_FPU_ABI_HARD): Likewise.
        (VAL_CSKY_FPU_HARDFP_HALF): Likewise.
        (VAL_CSKY_FPU_HARDFP_SINGLE): Likewise.
        (VAL_CSKY_FPU_HARDFP_DOUBLE): Likewise.
        * opcode/csky.h (CSKY_ISA_VDSP_V2): Define.
        CSKYV1_ISA_E1: Change to long constant type.
        CSKYV2_ISA_E1: Likewise.
        CSKYV2_ISA_1E2: Likewise.
        CSKYV2_ISA_2E3: Likewise.
        CSKYV2_ISA_3E7: Likewise.
        CSKYV2_ISA_7E10: Likewise.
        CSKYV2_ISA_3E3R1: Likewise.
        CSKYV2_ISA_3E3R2: Likewise.
        CSKYV2_ISA_10E60: Likewise.
        CSKY_ISA_TRUST: Likewise.
        CSKY_ISA_CACHE: Likewise.
        CSKY_ISA_NVIC: Likewise.
        CSKY_ISA_CP: Likewise.
        CSKY_ISA_MP: Likewise.
        CSKY_ISA_MP_1E2: Likewise.
        CSKY_ISA_JAVA: Likewise.
        CSKY_ISA_MAC: Likewise.
        CSKY_ISA_MAC_DSP: Likewise.
        CSKY_ISA_DSP: Likewise.
        CSKY_ISA_DSP_1E2: Likewise.
        CSKY_ISA_DSP_ENHANCE: Likewise.
        CSKY_ISA_FLOAT_E1: Likewise.
        CSKY_ISA_FLOAT_1E2: Likewise.
        CSKY_ISA_FLOAT_1E3: Likewise.
        CSKY_ISA_FLOAT_3E4: Likewise.
        CSKY_ISA_VDSP: Likewise.

ld/
        * emulparams/cskyelf.sh: Support attribute section.
        * testsuite/ld-csky/tls-le-v1.d: Match .csky.attributes section.
        * ld/testsuite/ld-csky/tls-le.d: Likewise.
        * testsuite/ld-elf/non-contiguous.ld: Ignore .csky.attributes
        section.

opcodes/
        * csky-dis.c (CSKY_DEFAULT_ISA): Define.
        (csky_dis_info): Add member isa.
        (csky_find_inst_info): Skip instructions that do not belong to
        current CPU.
        (csky_get_disassembler): Get infomation from attribute section.
        (print_insn_csky): Set defualt ISA flag.
        * csky.h (CSKY_ISA_VDSP_2): Rename from CSKY_ISA_VDSP_V2.
        * csky-opc.h (struct csky_opcode): Change isa_flag16 and
        isa_flag32'type to unsigned 64 bits.
 2020-08-28 17:23:24 +08:00
Nick Clifton
6194b866b7 Fixes for testsuite failures introduced by the changes made for PR 19011. 
PR19011
bfd	* cofflink.c (_bfd_coff_generic_relocate_section): Provide a value
	for undefined symbols which will not generate extra warning
	messages about truncated relocs.

ld	* testsuite/lib/ld-lib.exp (ld_link_defsyms): For PE based targets
	define the __main and ___main symbols in terms of the main symbol.
 2020-08-28 09:43:13 +01:00
Nelson Chu
3b1450b38c RISC-V: Treat R_RISCV_CALL and R_RISCV_CALL_PLT as the same in check_relocs. 
In fact, we can treate these two relocation as the same one in the
riscv_elf_check_relocs.  I have heard that RISC-V lld had made this
improvement, and so had GNU AARCH64, they only need R_AARCH64_CALL26
for calls rather than two seperate relocations.

Beside, the following PLT issue for RISC-V 32-bit glibc seems to be
fixed by applying at least this patch.

<https://sourceware.org/pipermail/libc-alpha/2020-August/117214.html>

I have ran the toolchain regression, and everything seems fine for now.

	bfd/
	* elfnn-riscv.c (riscv_elf_check_relocs): Treat R_RISCV_CALL
	and R_RISCV_CALL_PLT as the same in the riscv_elf_check_relocs.
	(riscv_elf_relocate_section): Remove the R_RISCV_CALL for the
	unresolved reloc checks.

	ld/
	testsuite/ld-riscv-elf/lib-nopic-01a.s: Use R_RISCV_JAL rather
	than R_RISCV_CALL.
	testsuite/ld-riscv-elf/lib-nopic-01b.d: Likewise.
	testsuite/ld-riscv-elf/lib-nopic-01b.s: Likewise.
 2020-08-28 09:37:35 +08:00
GDB Administrator
f2f08254b1 Automatic date update in version.in 2020-08-28 00:00:10 +00:00
John David Anglin
9e7ed8b080 Fix PR binutils/26356 on hppa*-*-hpux*. 
PR 26356
	* som.c (som_bfd_copy_private_section_data): Issue error when a
	subspace is specified without its containing space.
	* testsuite/binutils-all/objcopy.exp (objcopy --reverse-bytes): Add
	"-j $PRIVATE$" to command on hppa*-*-hpux*.
	* testsuite/lib/utils-lib.exp (default_binutils_run): Remove existing
	dollar-sign quotes before quoting.  Do this prior to generating log
	output.
 2020-08-27 15:25:03 +00:00
Alan Modra
4b69ce9b91 PR26469 UBSAN: elflink.c:8742 shift exponent 6148914691236511722 
PR 26469
	* elflink.c: Include limits.h.
	(CHAR_BIT): Provide fallback define.
	(set_symbol_value): Correct complex reloc comment.
	(undefined_reference): Set bfd_error.
	(BINARY_OP_HEAD, BINARY_OP_TAIL): Split out from..
	(BINARY_OP): ..this.
	(eval_symbol): Limit shifts.  Force unsigned for left shift.
	Catch divide by zero.
	* configure.ac (AC_CHECK_HEADERS): Combine, sort and add limits.h.
	* configure: Regenerate.
	* config.in: Regenerate.
 2020-08-27 22:05:00 +09:30
Alan Modra
cd570d497e PR26462 UBSAN: reloc.c:473 shift exponent 4294967295 
PR 26462
	* reloc.c (bfd_check_overflow): Return early if zero bitsize.
 2020-08-27 21:56:33 +09:30
Alan Modra
2ac865acf0 arm-symbianelf segfault 
Yes, the target is marked obsolete due to this and other segfaults,
but this one is easy enough to fix.

	* elf32-arm.c (elf32_arm_final_link_relocate): Don't segfault
	on sym_sec not being output.
 2020-08-27 21:56:33 +09:30
Alan Modra
c415c83bd9 Re: commit eae0b5c3b2 
PR 26416
	* elf64-alpha.c (elf64_alpha_relax_tls_get_addr): Correct "dynamic".
 2020-08-27 21:56:33 +09:30
GDB Administrator
f2e5245f41 Automatic date update in version.in 2020-08-27 00:00:10 +00:00
Nick Clifton
8c51f2f291 Fix sanitization problems in the BFD library when running the linker testsuite for the AVR target. 
PR 26433
	* elf32-avr.c (avr_final_link_relocate):  Fix undefined shift
	behaviour.
	(avr_elf32_load_records_from_section): Use bfd_get_16 and
	bfd_get_32 to load values from potentially unaligned pointers.
 2020-08-26 17:43:39 +01:00
Nick Clifton
eae0b5c3b2 Fix sanitization problems running the linker testsuite for the alpha-elf target. 
PR 26416
	* elf64-alpha.c (elf64_alpha_relax_tls_get_addr): Test for and
	ignore local symbols.
	(elf64_alpha_relax_got_load): Do not check for local dynamic
	symbols.
	(OP_LDA, OP_LDAH, OP_LDQ, OP_BR, OP_BSR): Use unsigned constant
	values.
	(INSN_A) Cast the A parameter to unsigned.
	(INSN_AB): Define in terms of INSN_A.
	(INSN_ABC): Likewise.
	(INSN_ABO): Likewise.
	(INSN_AD): Likewise.
 2020-08-26 16:26:13 +01:00
Nick Clifton
b74a6c6086 Fix a sanitization problem running the linker testsuite for the AArch64 target. 
PR 26411
	* elfnn-aarch64.c (elfNN_aarch64_relocate_section): Use an
	unsigned long constant when creating a mask to test for alignment
	issues.
 2020-08-26 15:51:56 +01:00
Alan Modra
4d43072582 PR26507 UBSAN: elf32-xtensa.c:6013 null pointer bsearch 
PR 26507
	* elf32-xtensa.c (find_removed_literal): Don't bsearch empty map.
 2020-08-26 23:23:45 +09:30
Alan Modra
252e57fdd4 PR26506 UBSAN: elf32-xtensa.c:3203 null pointer memcpy 
PR 26506
	* elf32-xtensa.c (elf_xtensa_combine_prop_entries): Return early
	when section is empty.
 2020-08-26 23:23:45 +09:30
Alan Modra
2d0ce6779c PR26498 UBSAN: elf32-spu.c:2292 left shift overflow 
PR 26498
	* elf32-spu.c (find_function_stack_adjust): Use unsigned vars to
	avoid UB left shift.
 2020-08-26 23:23:45 +09:30
Alan Modra
9e51d549d7 PR 26484-26488, 26490 UBSAN &h->elf null pointer 
PR 26484
	PR 26485
	PR 26486
	PR 26487
	PR 26488
	PR 26490
	* elf64-ppc.c (is_tls_get_addr): Avoid UB &h->elf when h is NULL.
	(ppc64_elf_tls_setup): Likewise.
	(branch_reloc_hash_match): Likewise.
	(build_plt_stub): Likewise.
	(ppc64_elf_relocate_section): Likewise.
 2020-08-26 23:23:45 +09:30
Alan Modra
00bc5e68b2 PR26478 UBSAN: mmo.c:2941 null pointer memcpy 
PR 26478
	* mmo.c (mmo_write_symbols_and_terminator): Don't memcpy empty table.
 2020-08-26 23:23:45 +09:30
Alan Modra
55e61b8ad9 PR26475 UBSAN: elfxx-mips.c:12180 null pointer memset 
Another memset(0,0,0)

	PR 26475
	* elfxx-mips.c (_bfd_mips_elf_finish_dynamic_sections): Check
	sstubs->contents != NULL.
 2020-08-26 23:23:44 +09:30
Alan Modra
66ad6b4458 PR26453 UBSAN: som.c:2885 null pointer memcpy 
PR 26453
	* som.c (som_prep_for_fixups): Return early when no symbols.
 2020-08-26 23:23:44 +09:30
Alan Modra
9863cbb7bd PR26418 UBSAN: cache.c:386 null pointer fwrite 
PR 26418
	* ecofflink.c (WRITE): Don't write size 0 chunks.
 2020-08-26 23:23:44 +09:30
Alan Modra
c01de19363 asan: alpha-vms: mmember access within null pointer 
* bfdio.c (bfd_get_file_size): Don't segv on NULL adata.
 2020-08-26 23:23:44 +09:30
Alan Modra
b4e125d935 PR26415 UBSAN: vms-misc.c:636 left shift cannot be represented 
An unsigned short value is promoted to int, thus triggering UB on a
left shift of a positive value that results in a negative int.

	PR 26415
	* vms-misc.c (vms_time_t_to_vms_time): Don't use unsigned short vars.
 2020-08-26 23:23:44 +09:30
David Faust
4449c81a85 bpf: add xBPF ISA 
This patch adds support for xBPF, another ISA targetting the BPF
virtual architecture. For now, the primary difference between eBPF
and xBPF is that xBPF supports indirect calls through the
'call %reg' form of the call instruction.

bfd/
	* archures.c (bfd_mach_xbpf): Define.
	* bfd-in2.h: Regenerate.
	* cpu-bpf.c (bfd_xbpf_arch) New.
	(bfd_bpf_arch) Update next in list field to point to xbpf arch.

cpu/
	* bpf.cpu (arch bpf): Add xbpf mach and isas.
	(define-xbpf-isa) New pmacro.
	(all-isas) Add xbpfle,xbpfbe.
	(endian-isas): New pmacro.
	(mach xbpf): New.
	(model xbpf-def): Likewise.
	(h-gpr): Add xbpf mach.
	(f-dstle, f-srcle, dstle, srcle): Add xbpfle isa.
	(f-dstbe, f-srcbe, dstbe, srcbe): Add xbpfbe isa.
	(define-alu-insn-un): Use new endian-isas pmacro.
	(define-alu-insn-bin, define-alu-insn-mov): Likewise.
	(define-endian-insn, define-lddw): Likewise.
	(dlind, dxli, dxsi, dsti): Likewise.
	(define-cond-jump-insn, define-call-insn): Likewise.
	(define-atomic-insns): Likewise.

gas/
	* config/tc-bpf.c: Add option -mxbpf to select xbpf isa.
	* testsuite/gas/bpf/indcall-1.d: New file.
	* testsuite/gas/bpf/indcall-1.s: Likewise.
	* testsuite/gas/bpf/indcall-bad-1.l: Likewise.
	* testsuite/gas/bpf/indcall-bad-1.s: Likewise.
	* testsuite/gas/bpf/bpf.exp: Run new tests.

opcodes/
	* bpf-desc.c: Regenerate.
	* bpf-desc.h: Likewise.
	* bpf-opc.c: Likewise.
	* bpf-opc.h: Likewise.
	* disassemble.c (disassemble_init_for_target): Set bits for xBPF
	ISA when appropriate.
 2020-08-26 15:39:00 +02:00
Alan Modra
13f8a2465e Re: CSKY: Add new arch CK860 
bfd-in2.h is a generated file.  Put the new machine where it belongs.

	* archures.c (bfd_mach_ck860): Define.
 2020-08-26 11:43:03 +09:30
GDB Administrator
3c68b07e84 Automatic date update in version.in 2020-08-26 00:00:10 +00:00