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2020-08-28[gdb/breakpoint] Handle setting breakpoint on label without addressTom de Vries8-23/+117
Consider test-case test.c: ... $ cat test.c int main (void) { return 0; L1: (void)0; } ... Compiled with debug info: ... $ gcc test.c -g ... When attempting to set a breakpoint at L1, which is a label without address: ... <1><f4>: Abbrev Number: 2 (DW_TAG_subprogram) <f5> DW_AT_name : main <2><115>: Abbrev Number: 3 (DW_TAG_label) <116> DW_AT_name : L1 <119> DW_AT_decl_file : 1 <11a> DW_AT_decl_line : 5 <2><11b>: Abbrev Number: 0 ... we run into an internal-error: ... $ gdb -batch a.out -ex "b main:L1" linespec.c:3233: internal-error: void \ decode_line_full(const event_location*, int, program_space*, symtab*, \ int, linespec_result*, const char*, const char*): \ Assertion `result.size () == 1 || canonical->pre_expanded' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. ... Fix this by detecting the error condition in decode_line_full instead, and throwing an error, such that we have instead: ... (gdb) b main:L1 Location main:L1 not available (gdb) ... Unfortunately, to call event_location_to_string, which is used to get the location name in the error message, we need to pass a non-const struct event_location, because the call may cache the string in the struct (See EL_STRING). So, we change the prototype of decode_line_full accordingly, and everywhere this propages to. Tested on x86_64-linux. gdb/ChangeLog: 2020-08-28 Tom de Vries <tdevries@suse.de> PR breakpoint/26544 * breakpoint.c (parse_breakpoint_sals): Remove const from struct event_location. (create_breakpoint): Same. (base_breakpoint_decode_location): Same. (bkpt_create_sals_from_location): Same. (bkpt_decode_location): Same. (bkpt_probe_create_sals_from_location): Same. (bkpt_probe_decode_location): Same. (tracepoint_create_sals_from_location): Same. (tracepoint_decode_location): Same. (tracepoint_probe_decode_location): Same. (strace_marker_create_sals_from_location): Same. (strace_marker_decode_location): Same. (create_sals_from_location_default): Same. (decode_location_default): Same. * breakpoint.h (struct breakpoint_ops): Same. (create_breakpoint): Same. * linespec.h (decode_line_full): Same. * linespec.c (decode_line_full): Same. Throw error if result.size () == 0. gdb/testsuite/ChangeLog: 2020-08-28 Tom de Vries <tdevries@suse.de> * gdb.base/label-without-address.c: New test. * gdb.base/label-without-address.exp: New file.
2020-08-28CSKY: Support attribute section.Cooper Qu41-101/+827
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.
2020-08-28Fixes for testsuite failures introduced by the changes made for PR 19011.Nick Clifton4-4/+23
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.
2020-08-28mingw plugin test regressions due to commit 514b4e191d5fAlan Modra2-4/+17
Fixes new failures due to image base change. PR 19011 * testsuite/ld-plugin/plugin.exp: Use modified CFLAGS throughout file. Add --image-base for pecoff.
2020-08-28RISC-V: Treat R_RISCV_CALL and R_RISCV_CALL_PLT as the same in check_relocs.Nelson Chu6-12/+27
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.
2020-08-28Automatic date update in version.inGDB Administrator1-1/+1
2020-08-27Fix advance/until and multiple locations (PR gdb/26524)Pedro Alves5-41/+261
If you do "advance LINESPEC", and LINESPEC expands to more than one location, GDB just errors out: if (sals.size () != 1) error (_("Couldn't get information on specified line.")); For example, advancing to a line in an inlined function, inlined three times: (gdb) b 21 Breakpoint 1 at 0x55555555516f: advance.cc:21. (3 locations) (gdb) info breakpoints Num Type Disp Enb Address What 1 breakpoint keep y <MULTIPLE> 1.1 y 0x000055555555516f in inline_func at advance.cc:21 1.2 y 0x000055555555517e in inline_func at advance.cc:21 1.3 y 0x000055555555518d in inline_func at advance.cc:21 (gdb) advance 21 Couldn't get information on specified line. (gdb) Similar issue with the "until" command, as it shares the implementation with "advance". Since, as the comment in gdb.base/advance.exp says, "advance <location>" is really just syntactic sugar for "tbreak <location>;continue", fix this by making GDB insert a breakpoint at all the resolved locations. A new testcase is included, which exercises both "advance" and "until", in two different cases expanding to multiple locations: - inlined functions - C++ overloads This also exercises the inline frames issue fixed by the previous patch. gdb/ChangeLog: PR gdb/26524 * breakpoint.c (until_break_fsm) <location_breakpoint, caller_breakpoint>: Delete fields. <breakpoints>: New field. <until_break_fsm>: Adjust to save a breakpoint vector instead of two individual breakpoints. (until_break_fsm::should_stop): Loop over breakpoints in the breakpoint vector. (until_break_fsm::clean_up): Adjust to clear the breakpoints vector. (until_break_command): Handle location expanding into multiple sals. gdb/testsuite/ChangeLog: PR gdb/26523 PR gdb/26524 * gdb.base/advance-until-multiple-locations.cc: New. * gdb.base/advance-until-multiple-locations.exp: New.
2020-08-27Fix advance/until and inline frames (PR gdb/26523)Pedro Alves2-2/+11
If you do "tbreak LINENO; c" to advance to an inlined function, GDB presents the stop at the inline frame instead of at the non-artificial stack frame: (gdb) list 21 18 static inline __attribute__ ((always_inline)) int 19 inline_func (int i) 20 { 21 return i + 1; 22 } (gdb) tbreak 21 Temporary breakpoint 3 at 0x55555555516f: advance.cc:21. (gdb) c Continuing. Temporary breakpoint 3, inline_func (i=0) at advance.cc:21 21 return i + 1; The logic for this is in stopped_by_user_bp_inline_frame: /* Loop over the stop chain and determine if execution stopped in an inlined frame because of a breakpoint with a user-specified location set at FRAME_BLOCK. */ static bool stopped_by_user_bp_inline_frame (const block *frame_block, bpstat stop_chain) If however, you do "advance LINENO" or "until LINENO" instead, GDB presents the stop at the non-artificial frame: (gdb) advance 21 main () at advance.cc:43 43 i = inline_func (i); (gdb) "advance" and "until" should really behave like user breakpoints here, since their location is also user-specified. As the comment in gdb.base/advance.exp says, "advance <location>" is really just syntactic sugar for "tbreak <location>; continue". Fix this by making stopped_by_user_bp_inline_frame also consider advance/until breakpoints. A testcase covering this will be included in the next patch. gdb/ChangeLog: PR gdb/26523 * inline-frame.c (stopped_by_user_bp_inline_frame): Also consider bp_until breakpoints user-specified locations. Update intro comment.
2020-08-27readelf: MSP430: Fix incorrect usage of "msp430x" in function namesJozef Lawrynowicz2-4/+13
The "X" in "MSP430X" indicates an extension to the original MSP430 ISA, but these functions are generically used for all MSP430 ISAs, so the names should not use the "X" suffix. binutils/ChangeLog: * readelf.c (get_msp430x_section_type_name): Rename to ... (get_msp430_section_type_name): ... this. (get_section_type_name): Use get_msp430_section_type_name. (display_msp430x_attribute): Rename to ... (display_msp430_attribute): ... this. (process_arch_specific): Use display_msp430_attribute.
2020-08-27ld/emultempl/msp430.em: Remove unused variableJozef Lawrynowicz2-3/+5
ld/ChangeLog: * emultempl/msp430.em: Remove unused variable "buf".
2020-08-27gdb/testsuite: use multi_line in gdb.dwarf2/dw2-reg-undefined.expSimon Marchi2-1/+10
Use multi_line to make the expected pattern more readable. gdb/testsuite/ChangeLog: * gdb.dwarf2/dw2-reg-undefined.exp: Use multi_line. Change-Id: Ia8e42d156c0c30265121eb890e1db17a692dbaf0
2020-08-27gdb: fix whitespace issues in ChangeLog filesSimon Marchi2-4/+4
Change-Id: I423867477d4342673e629dac71a80592fd879ea1
2020-08-27gdb/testsuite: make test names unique in gdb.arch/*.expAndrew Burgess9-186/+203
Make the test names unique in gdb.arch/*.exp by either modifying the test names or using with_test_prefix. I have also fixed a typo 'forth' -> 'fourth' throughout gdb.arch/*. Finally, I replaced code like this: gdb_test "break [gdb_get_line_number "first breakpoint here"]" \ "Breakpoint .* at .*${srcfile}.*" \ "set first breakpoint in main" With this: gdb_breakpoint [gdb_get_line_number "first breakpoint here"] In those files that I was already modifying for the other reasons given above. gdb/testsuite/ChangeLog: * gdb.arch/amd64-byte.exp: Make test names unique, use gdb_breakpoint, and fix typo 'forth' -> 'fourth'. * gdb.arch/amd64-dword.exp: Likewise. * gdb.arch/amd64-pseudo.c: Fix typo 'forth' -> 'fourth'. * gdb.arch/amd64-stap-special-operands.exp: Make test names unique. * gdb.arch/amd64-tailcall-ret.exp: Likewise. * gdb.arch/amd64-word.exp: Make test names unique, use gdb_breakpoint, and fix typo 'forth' -> 'fourth'. * gdb.arch/i386-byte.exp: Make test names unique, use gdb_breakpoint. * gdb.arch/i386-word.exp: Likewise.
2020-08-27Fix PR binutils/26356 on hppa*-*-hpux*.John David Anglin5-11/+39
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.
2020-08-27Corrects the broken line number incrementation in the Windows resource parserRalf Habacker2-1/+10
When the tokens MCLINE, MCENDLINE, and MCCOMMENT were created, the line number was not increased, which led to an incorrect value in the error output. PR 26088 * mclex.c (skip_until_eol): if eol was found, increment line number
2020-08-27gdb: add gdb_bfd_sections for range-based iterationSimon Marchi3-26/+50
I wanted to make a nicer / type-safe interface for bfd_map_over_sections, avoiding the `void *` data parameter. My first shot was to make a wrapper for bfd_map_over_sections, gdb_bfd_map_over_sections that took a gdb::function_view. However, I think that a range adapter gives nicer and simpler code, as a simple for loop is easier to read than a callback / lambda function. So here it is, it uses next_iterator and next_adapter, so it's not much code. As an example, I ported maintenance_info_sections and friends to use it. The maint_print_section_data type could probably be removed now, but I didn't want to do too much in one patch. gdb/ChangeLog: * gdb_bfd.h (gdb_bfd_section_iterator, gdb_bfd_section_range, gdb_bfd_sections): New. * maint.c (print_bfd_section_info): Change param type to maint_print_section_data. (print_objfile_section_info): Likewise. (print_bfd_section_info_maybe_relocated): Likewise. (maintenance_info_sections): Use gdb_bfd_sections. Change-Id: Ib496f6b0a0eb7aadb10da1dd381304014d934ea0
2020-08-27Remove commit 9fb2400ce6Nick Clifton4-81/+64
2020-08-27Fix linker testcase for alpha-linux affected by fix for PR 26416Nick Clifton4-64/+81
PR 26416 * testsuite/ld-alpha/tlsbinr.rd: Update expected output. * testsuite/ld-alpha/tlsbinr.dd: Likewise. * testsuite/ld-alpha/tlsbinr.sd: Likewise.
2020-08-27PR26469 UBSAN: elflink.c:8742 shift exponent 6148914691236511722Alan Modra5-25/+69
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.
2020-08-27PR26467 UBSAN: cgen.c:762 shift exponent 18446744073709551615Alan Modra2-1/+7
PR 26467 * cgen.c (weak_operand_overflow_check): Handle opmask for operand length zero. Use 1UL constant.
2020-08-27PR26462 UBSAN: reloc.c:473 shift exponent 4294967295Alan Modra2-0/+8
PR 26462 * reloc.c (bfd_check_overflow): Return early if zero bitsize.
2020-08-27arm-symbianelf segfaultAlan Modra2-1/+8
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.
2020-08-27Re: commit eae0b5c3b2d6bAlan Modra2-3/+7
PR 26416 * elf64-alpha.c (elf64_alpha_relax_tls_get_addr): Correct "dynamic".
2020-08-27binutils, ld: dequote libctf error messagesNick Alcock12-13/+32
These are not identifiers and should not be quoted. (Also, quoting them just looks odd.) Adjust diagnostics tests accordingly. binutils/ChangeLog 2020-08-27 Nick Alcock <nick.alcock@oracle.com> * objdump.c (dump_ctf_errs): Unquote CTF error messages. * readelf.c (dump_ctf_errs): Likewise. ld/ChangeLog 2020-08-27 Nick Alcock <nick.alcock@oracle.com> * ldlang.c (dump_ctf_errs): Unquote CTF error messages. (ldlang_open_ctf): Likewise. (lang_merge_ctf): Likewise. (lang_write_ctf): Likewise. * testsuite/ld-ctf/diag-ctf-version-f.d: Adjust. * testsuite/ld-ctf/diag-cttname-invalid.d: Adjust. * testsuite/ld-ctf/diag-decompression-failure.d: Adjust. * testsuite/ld-ctf/diag-parname.d: Adjust. * testsuite/ld-ctf/diag-unsupported-flag.d: Adjust. * testsuite/ld-ctf/diag-wrong-magic-number-mixed.d: Adjust. * testsuite/ld-ctf/diag-wrong-magic-number.d: Adjust.
2020-08-27libctf, binutils, include, ld: gettextize and improve error handlingNick Alcock21-418/+658
This commit follows on from the earlier commit "libctf, ld, binutils: add textual error/warning reporting for libctf" and converts every error in libctf that was reported using ctf_dprintf to use ctf_err_warn instead, gettextizing them in the process, using N_() where necessary to avoid doing gettext calls unless an error message is actually generated, and rephrasing some error messages for ease of translation. This requires a slight change in the ctf_errwarning_next API: this API is public but has not been in a release yet, so can still change freely. The problem is that many errors are emitted at open time (whether opening of a CTF dict, or opening of a CTF archive): the former of these throws away its incompletely-initialized ctf_file_t rather than return it, and the latter has no ctf_file_t at all. So errors and warnings emitted at open time cannot be stored in the ctf_file_t, and have to go elsewhere. We put them in a static local in ctf-subr.c (which is not very thread-safe: a later commit will improve things here): ctf_err_warn with a NULL fp adds to this list, and the public interface ctf_errwarning_next with a NULL fp retrieves from it. We need a slight exception from the usual iterator rules in this case: with a NULL fp, there is nowhere to store the ECTF_NEXT_END "error" which signifies the end of iteration, so we add a new err parameter to ctf_errwarning_next which is used to report such iteration-related errors. (If an fp is provided -- i.e., if not reporting open errors -- this is optional, but even if it's optional it's still an API change. This is actually useful from a usability POV as well, since ctf_errwarning_next is usually called when there's been an error, so overwriting the error code with ECTF_NEXT_END is not very helpful! So, unusually, ctf_errwarning_next now uses the passed fp for its error code *only* if no errp pointer is passed in, and leaves it untouched otherwise.) ld, objdump and readelf are adapted to call ctf_errwarning_next with a NULL fp to report open errors where appropriate. The ctf_err_warn API also has to change, gaining a new error-number parameter which is used to add the error message corresponding to that error number into the debug stream when LIBCTF_DEBUG is enabled: changing this API is easy at this point since we are already touching all existing calls to gettextize them. We need this because the debug stream should contain the errno's message, but the error reported in the error/warning stream should *not*, because the caller will probably report it themselves at failure time regardless, and reporting it in every error message that leads up to it leads to a ridiculous chattering on failure, which is likely to end up as ridiculous chattering on stderr (trimmed a bit): CTF error: `ld/testsuite/ld-ctf/A.c (0): lookup failure for type 3: flags 1: The parent CTF dictionary is unavailable' CTF error: `ld/testsuite/ld-ctf/A.c (0): struct/union member type hashing error during type hashing for type 80000001, kind 6: The parent CTF dictionary is unavailable' CTF error: `deduplicating link variable emission failed for ld/testsuite/ld-ctf/A.c: The parent CTF dictionary is unavailable' ld/.libs/lt-ld-new: warning: CTF linking failed; output will have no CTF section: `The parent CTF dictionary is unavailable' We only need to be told that the parent CTF dictionary is unavailable *once*, not over and over again! errmsgs are still emitted on warning generation, because warnings do not usually lead to a failure propagated up to the caller and reported there. Debug-stream messages are not translated. If translation is turned on, there will be a mixture of English and translated messages in the debug stream, but rather that than burden the translators with debug-only output. binutils/ChangeLog 2020-08-27 Nick Alcock <nick.alcock@oracle.com> * objdump.c (dump_ctf_archive_member): Move error- reporting... (dump_ctf_errs): ... into this separate function. (dump_ctf): Call it on open errors. * readelf.c (dump_ctf_archive_member): Move error- reporting... (dump_ctf_errs): ... into this separate function. Support calls with NULL fp. Adjust for new err parameter to ctf_errwarning_next. (dump_section_as_ctf): Call it on open errors. include/ChangeLog 2020-08-27 Nick Alcock <nick.alcock@oracle.com> * ctf-api.h (ctf_errwarning_next): New err parameter. ld/ChangeLog 2020-08-27 Nick Alcock <nick.alcock@oracle.com> * ldlang.c (lang_ctf_errs_warnings): Support calls with NULL fp. Adjust for new err parameter to ctf_errwarning_next. Only check for assertion failures when fp is non-NULL. (ldlang_open_ctf): Call it on open errors. * testsuite/ld-ctf/ctf.exp: Always use the C locale to avoid breaking the diags tests. libctf/ChangeLog 2020-08-27 Nick Alcock <nick.alcock@oracle.com> * ctf-subr.c (open_errors): New list. (ctf_err_warn): Calls with NULL fp append to open_errors. Add err parameter, and use it to decorate the debug stream with errmsgs. (ctf_err_warn_to_open): Splice errors from a CTF dict into the open_errors. (ctf_errwarning_next): Calls with NULL fp report from open_errors. New err param to report iteration errors (including end-of-iteration) when fp is NULL. (ctf_assert_fail_internal): Adjust ctf_err_warn call for new err parameter: gettextize. * ctf-impl.h (ctfo_get_vbytes): Add ctf_file_t parameter. (LCTF_VBYTES): Adjust. (ctf_err_warn_to_open): New. (ctf_err_warn): Adjust. (ctf_bundle): Used in only one place: move... * ctf-create.c: ... here. (enumcmp): Use ctf_err_warn, not ctf_dprintf, passing the err number down as needed. Don't emit the errmsg. Gettextize. (membcmp): Likewise. (ctf_add_type_internal): Likewise. (ctf_write_mem): Likewise. (ctf_compress_write): Likewise. Report errors writing the header or body. (ctf_write): Likewise. * ctf-archive.c (ctf_arc_write_fd): Use ctf_err_warn, not ctf_dprintf, and gettextize, as above. (ctf_arc_write): Likewise. (ctf_arc_bufopen): Likewise. (ctf_arc_open_internal): Likewise. * ctf-labels.c (ctf_label_iter): Likewise. * ctf-open-bfd.c (ctf_bfdclose): Likewise. (ctf_bfdopen): Likewise. (ctf_bfdopen_ctfsect): Likewise. (ctf_fdopen): Likewise. * ctf-string.c (ctf_str_write_strtab): Likewise. * ctf-types.c (ctf_type_resolve): Likewise. * ctf-open.c (get_vbytes_common): Likewise. Pass down the ctf dict. (get_vbytes_v1): Pass down the ctf dict. (get_vbytes_v2): Likewise. (flip_ctf): Likewise. (flip_types): Likewise. Use ctf_err_warn, not ctf_dprintf, and gettextize, as above. (upgrade_types_v1): Adjust calls. (init_types): Use ctf_err_warn, not ctf_dprintf, as above. (ctf_bufopen_internal): Likewise. Adjust calls. Transplant errors emitted into individual dicts into the open errors if this turns out to be a failed open in the end. * ctf-dump.c (ctf_dump_format_type): Adjust ctf_err_warn for new err argument. Gettextize. Don't emit the errmsg. (ctf_dump_funcs): Likewise. Collapse err label into its only case. (ctf_dump_type): Likewise. * ctf-link.c (ctf_create_per_cu): Adjust ctf_err_warn for new err argument. Gettextize. Don't emit the errmsg. (ctf_link_one_type): Likewise. (ctf_link_lazy_open): Likewise. (ctf_link_one_input_archive): Likewise. (ctf_link_deduplicating_count_inputs): Likewise. (ctf_link_deduplicating_open_inputs): Likewise. (ctf_link_deduplicating_close_inputs): Likewise. (ctf_link_deduplicating): Likewise. (ctf_link): Likewise. (ctf_link_deduplicating_per_cu): Likewise. Add some missed ctf_set_errnos to obscure error cases. * ctf-dedup.c (ctf_dedup_rhash_type): Adjust ctf_err_warn for new err argument. Gettextize. Don't emit the errmsg. (ctf_dedup_populate_mappings): Likewise. (ctf_dedup_detect_name_ambiguity): Likewise. (ctf_dedup_init): Likewise. (ctf_dedup_multiple_input_dicts): Likewise. (ctf_dedup_conflictify_unshared): Likewise. (ctf_dedup): Likewise. (ctf_dedup_rwalk_one_output_mapping): Likewise. (ctf_dedup_id_to_target): Likewise. (ctf_dedup_emit_type): Likewise. (ctf_dedup_emit_struct_members): Likewise. (ctf_dedup_populate_type_mapping): Likewise. (ctf_dedup_populate_type_mappings): Likewise. (ctf_dedup_emit): Likewise. (ctf_dedup_hash_type): Likewise. Fix a bit of messed-up error status setting. (ctf_dedup_rwalk_one_output_mapping): Likewise. Don't hide unknown-type-kind messages (which signify file corruption).
2020-08-27libctf, binutils: initial work towards libctf gettextizationNick Alcock11-21/+107
We gettextize under our package name, which we change to a more reasonable 'libctf'. Our internationalization support is mostly provided by ctf-intl.h, which is a copy of opcodes/opintl.h with the non-gettext_noop N_() expansion debracketed to avoid pedantic compiler warnings. The libctf error strings returned by ctf_errmsg are marked up for internationalization. (We also adjust binutils's Makefile a tiny bit to allow for the fact that libctf now uses functions from libintl.) binutils/ChangeLog 2020-08-27 Nick Alcock <nick.alcock@oracle.com> * Makefile.am (readelf_LDADD): Move $(LIBINTL) after $(LIBCTF_NOBFD). * Makefile.in: Regenerated. libctf/ChangeLog 2020-08-27 Nick Alcock <nick.alcock@oracle.com> * configure.ac: Adjust package name to simply 'libctf': arbitrarily declare this to be version 1.2.0. * Makefile.am (AM_CPPFLAGS): Add @INCINTL@. * Makefile.in: Regenerated. * configure: Regenerated. * ctf-intl.h: New file, lightly modified from opcodes/opintl.h. * ctf-impl.h: Include it. * ctf-error.r (_ctf_errlist_t): Mark strings as noop-translatable. (ctf_errmsg): Actually translate them.
2020-08-27Change the default characteristics of DLLs built by the linker to more ↵Jeremy Drake8-43/+201
secure settings. PR 19011 * emultempl/pe.em (DEFAULT_DLL_CHARACTERISTICS): Define. (pe_dll_characteristics): Initialise to DEFAULT_DLL_CHARACTERISTICS. (add_options): Add options to disable DLL characteristics. (list_options): List the new options. (handle_options): Handle the new options. * emultempl/pep.em: Similar changes to above. (NT_EXE_IMAGE_BASE): Default to an address above 4G. (NT_DLL_IMAGE_BASE, NT_DLL_AUTO_IMAGE_BASE, (NT_DLL_AUTO_IMAGE_MASK): Likewise. * ld.texi: Document the new options. * pe-dll.c (pe_dll_enable_reloc_section): Change to default to true. (generate_reloc): Do nothing if there is no reloc section. (pe_exe_fill_sections): Only assign the reloc section contents if the section exists. * testsuite/ld-pe/pe.exp: Add the --disable-reloc-section flag to the .secrel32 tests. * testsuite/ld-scripts/provide-8.d: Expect for fail on PE targets. * NEWS: Mention the change in DLL generation.
2020-08-27Automatic date update in version.inGDB Administrator1-1/+1
2020-08-26Update gnulib to current trunkChristian Biesinger104-1956/+5524
This fixes two issues on Windows: Update. https://sourceware.org/pipermail/gdb-patches/2020-June/169978.html gnulib/ChangeLog: 2020-08-26 Christian Biesinger <cbiesinger@google.com> Pedro Alves <palves@redhat.com> Joel Brobecker <brobecker@adacore.com> * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * config.in: Regenerate. * configure: Regenerate. * import/Makefile.am: Update. * import/Makefile.in: Regenerate. * import/alloca.in.h (if): Update. * import/assure.h (affirm): Update. * import/at-func.c: Update. * import/attribute.h: New file. * import/btowc.c: New file. * import/canonicalize-lgpl.c: Update. * import/count-one-bits.h (COUNT_ONE_BITS_GENERIC): Update. (COUNT_ONE_BITS): Update. (intrinsic): Update. (__popcnt64): Update. (popcount_supported): Update. * import/ctype.in.h: New file. * import/dirent-private.h (WIN32_FIND_DATA): Update. * import/dirent.in.h (_GL_ATTRIBUTE_PURE): Update. * import/dirname.h: Update. * import/dosname.h: Remove. * import/error.h (_GL_ATTRIBUTE_FORMAT): Update. * import/extra/update-copyright: Update. * import/fchdir.c: Update. * import/fcntl.in.h (GNULIB_defined_rpl_fcntl): Update. (GNULIB_defined_fcntl): Update. * import/filename.h (HAS_DEVICE): Update. (IS_ABSOLUTE_PATH): Update. (IS_PATH_WITH_DIR): Update. (FILE_SYSTEM_PREFIX_LEN): Update. (_IS_DRIVE_LETTER): Update. (FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE): Update. (IS_ABSOLUTE_FILE_NAME): Update. (IS_RELATIVE_FILE_NAME): Update. (IS_FILE_NAME_WITH_DIR): Update. * import/filenamecat-lgpl.c (mfile_name_concat): Update. * import/fnmatch.c (WIDE_CHAR_SUPPORT): Update. (btowc): Update. (iswctype): Update. (mempcpy): Update. (strnlen): Update. (towlower): Update. (wcscat): Update. (wcslen): Update. (wctype): Update. (wmemchr): Update. (wmempcpy): Update. (SIZE_MAX): Update. (isblank): Update. (__libc_use_alloca): Update. (alloca): Update. (alloca_account): Update. (STREQ): Update. (CHAR_CLASS_MAX_LENGTH): Update. (IS_CHAR_CLASS): Update. (ISWCTYPE): Update. (if): Update. (HANDLE_MULTIBYTE): Update. (internal_function): Update. (FOLD): Update. (CHAR): Update. (UCHAR): Update. (INT): Update. (FCT): Update. (EXT): Update. (END): Update. (L_): Update. (BTOWC): Update. (STRLEN): Update. (STRCAT): Update. (MEMPCPY): Update. (MEMCHR): Update. (WIDE_CHAR_VERSION): Update. (STRUCT): Update. (FINDIDX): Update. (findidx): Update. (ALLOCA_LIMIT): Update. (SHLIB_COMPAT): Update. * import/fnmatch_loop.c (struct STRUCT): Update. (FCT): Update. (EXT): Update. (END): Update. (str): Update. (NEW_PATTERN): Update. * import/getcwd.c: Update. * import/getlogin_r.c (GetUserName): Update. * import/getprogname.c (getprogname): Update. * import/getrandom.c: New file. * import/gettimeofday.c: Remove. * import/glob.in.h (_Restrict_): Update. * import/inttypes.in.h (_GL_FUNCDECL_RPL): Update. (_GL_CXXALIAS_RPL): Update. (_GL_FUNCDECL_SYS): Update. (_GL_CXXALIAS_SYS): Update. * import/isblank.c: New file. * import/isnanl-nolibm.h (__has_builtin): Update. * import/libc-config.h (versioned_symbol): Update. (compat_symbol): Update. * import/limits.in.h (_GL_ALREADY_INCLUDING_LIMITS_H): Update. * import/m4/btowc.m4: New file. * import/m4/ctype.m4: New file. * import/m4/exponentl.m4: Update. * import/m4/fnmatch.m4: Update. * import/m4/getrandom.m4: New file. * import/m4/glob.m4: Update. * import/m4/gnulib-cache.m4: Update. * import/m4/gnulib-common.m4: Update. * import/m4/gnulib-comp.m4: Update. * import/m4/inttypes.m4: Update. * import/m4/isblank.m4: New file. * import/m4/isnanl.m4: Update. * import/m4/largefile.m4: Update. * import/m4/mbtowc.m4: New file. * import/m4/memmem.m4: Update. * import/m4/minmax.m4: New file. * import/m4/signal_h.m4: Update. * import/m4/stdio_h.m4: Update. * import/m4/stdlib_h.m4: Update. * import/m4/string_h.m4: Update. * import/m4/strnlen.m4: New file. * import/m4/sys_random_h.m4: New file. * import/m4/sys_socket_h.m4: Update. * import/m4/sys_stat_h.m4: Update. * import/m4/time_h.m4: Update. * import/m4/unistd_h.m4: Update. * import/m4/wchar_h.m4: Update. * import/m4/wint_t.m4: Update. * import/m4/wmemchr.m4: New file. * import/m4/wmempcpy.m4: New file. * import/math.in.h (__has_builtin): Update. * import/mbrtowc.c (FALLTHROUGH): Update. * import/mbtowc-impl.h: New file. * import/mbtowc.c: New file. * import/minmax.h: New file. * import/open.c (open): Update. * import/openat-proc.c (openat_proc_name): Update. * import/openat.c (rpl_openat): Update. (openat_needs_fchdir): Update. * import/openat.h (FCHOWNAT_INLINE): Update. (CHOWNAT_INLINE): Update. (FCHMODAT_INLINE): Update. (CHMODAT_INLINE): Update. * import/opendir.c (WIN32_FIND_DATA): Update. (GetFullPathName): Update. (FindFirstFile): Update. * import/readdir.c (FindNextFile): Update. * import/rename.c (MoveFileEx): Update. * import/rewinddir.c (FindFirstFile): Update. * import/rmdir.c: Update. * import/signal.in.h (_GL_FUNCDECL_RPL): Update. (_GL_CXXALIAS_RPL): Update. (_GL_FUNCDECL_SYS): Update. (_GL_CXXALIAS_SYS): Update. * import/stat-w32.c (_WIN32_WINNT): Update. (LoadLibrary): Update. (GetFinalPathNameByHandle): Update. (GetProcAddress): Update. (DWORD): Update. (GetFileInformationByHandleExFunc): Update. (GetFinalPathNameByHandleFunc): Update. * import/stat.c (WIN32_FIND_DATA): Update. (CreateFile): Update. (FindFirstFile): Update. * import/stdio.in.h (_GL_ATTRIBUTE_FORMAT): Update. (_GL_FUNCDECL_RPL): Update. (_GL_CXXALIAS_RPL): Update. (_GL_FUNCDECL_SYS): Update. (_GL_CXXALIAS_SYS): Update. (_GL_FUNCDECL_RPL_1): Update. (_GL_CXXALIAS_RPL_1): Update. (_GL_CXXALIAS_SYS_CAST): Update. * import/stdlib.in.h (_GL_ATTRIBUTE_PURE): Update. (_GL_FUNCDECL_RPL): Update. (_GL_CXXALIAS_RPL): Update. (_GL_FUNCDECL_SYS): Update. (_GL_CXXALIAS_SYS): Update. * import/string.in.h (_GL_ATTRIBUTE_PURE): Update. (_GL_WARN_ON_USE): Update. (_GL_WARN_ON_USE_CXX): Update. (_GL_FUNCDECL_RPL): Update. (_GL_CXXALIAS_RPL): Update. (_GL_CXXALIAS_SYS): Update. (mbstok_r): Update. * import/strnlen.c: New file. * import/sys_random.in.h: New file. * import/sys_socket.in.h (GNULIB_defined_socklen_t): Update. (_GL_FUNCDECL_RPL): Update. (_GL_CXXALIAS_RPL): Update. (_GL_CXXALIAS_SYS_CAST): Update. * import/sys_stat.in.h (_GL_FUNCDECL_RPL): Update. (_GL_CXXALIAS_RPL): Update. (_GL_FUNCDECL_SYS): Update. (_GL_CXXALIAS_SYS): Update. (lchmod): Update. (_GL_CXXALIAS_RPL_1): Update. (stat): Update. * import/tempname.c (__set_errno): Update. (__secure_getenv): Update. (__try_tempname): Update. (__getpid): Update. (__gettimeofday): Update. (RANDOM_BITS): Update. (uint64_t): Update. (RANDOM_VALUE_MAX): Update. (BASE_62_DIGITS): Update. (BASE_62_POWER): Update. (try_tempname_len): Update. (try_file): Update. (try_dir): Update. (try_nocreate): Update. (gen_tempname_len): Update. (__gen_tempname): Update. (try_tempname): Update. * import/tempname.h (gen_tempname_len): Update. (try_tempname_len): Update. * import/time.in.h (_GL_FUNCDECL_RPL): Update. (_GL_CXXALIAS_RPL): Update. (_GL_CXXALIAS_SYS): Update. * import/unistd.in.h (if): Update. (_GL_FUNCDECL_SYS): Update. (_GL_CXXALIAS_SYS): Update. (_GL_CXXALIASWARN): Update. (_GL_WARN_ON_USE): Update. (_GL_FUNCDECL_RPL): Update. (_GL_CXXALIAS_RPL): Update. * import/verify.h: Update. * import/warn-on-use.h (_GL_WARN_ON_USE_CXX): Update. * import/wchar.in.h (_GL_ATTRIBUTE_PURE): Update. (_GL_FUNCDECL_RPL): Update. (_GL_CXXALIAS_RPL): Update. (_GL_FUNCDECL_SYS): Update. (_GL_CXXALIAS_SYS): Update. (_GL_CXXALIASWARN): Update. (_GL_WARN_ON_USE): Update. (_GL_CXXALIAS_SYS_CAST2): Update. (_GL_CXXALIASWARN1): Update. * import/windows-rwlock.c (CreateEvent): Update. * import/wmemchr-impl.h: New file. * import/wmemchr.c: New file. * import/wmempcpy.c: New file. * update-gnulib.sh (IMPORTED_GNULIB_MODULES): Add gettimeofday. (GNULIB_COMMIT_SHA1): Update gnulib revision.
2020-08-26ld: Add $NOSANTIZE_CFLAGS to more linker testsH.J. Lu10-57/+141
-fsanitize= can be used to build binutils with $ CC="gcc -fsanitize=address,undefined" CXX="g++ -fsanitize=address,undefined" .../configure --disable-werror Since not all linker tests are compatible with -fsanitize=, pass $NOSANTIZE_CFLAGS to disable -fsanitize= for such tests. * testsuite/ld-elf/indirect.exp: Append $NOSANTIZE_CFLAGS to CC. * testsuite/ld-elf/shared.exp: Likewise. * testsuite/ld-elfcomm/elfcomm.exp: Likewise. * testsuite/ld-elfvers/vers.exp: Likewise. * testsuite/ld-elfvsb/elfvsb.exp: Likewise. * testsuite/ld-elfweak/elfweak.exp: Likewise. * testsuite/ld-plugin/lto.exp: Likewise. * testsuite/ld-plugin/plugin.exp: Likewise. * testsuite/ld-scripts/crossref.exp: Likewise.
2020-08-26Fix sanitization problems in the BFD library when running the linker ↵Nick Clifton2-7/+13
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.
2020-08-26Fix sanitization problems running the linker testsuite for the alpha-elf target.Nick Clifton2-11/+27
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.
2020-08-26Fix a sanitization problem running the linker testsuite for the AArch64 target.Nick Clifton2-1/+8
PR 26411 * elfnn-aarch64.c (elfNN_aarch64_relocate_section): Use an unsigned long constant when creating a mask to test for alignment issues.
2020-08-26opcodes: Add missing entries to ebpf_isa_attrJose E. Marchesi2-1/+5
opcodes/ * disassemble.c (enum epbf_isa_attr): Add ISA_XBPFBE, ISA_EBPFMAX.
2020-08-26Add support to readelf for the OpenBSD segment types.Nick Clifton4-0/+21
PR 26405 binutils* readelf.c (get_segment_type): Handle OpenBSD segment types. include * elf/common.h (PT_OPENBSD_BOOTDATA): Define. (PT_OPENBSD_RANDOMIZE): Define. (PT_OPENBSD_WXNEEDED): Define.
2020-08-26PR26508 UBSAN: tc-xtensa.c:7764 null pointer bsearchAlan Modra2-0/+9
PR 26508 * config/tc-xtensa.c (xg_get_trampoline_chain): Return early when n_entries is zero.
2020-08-26PR26507 UBSAN: elf32-xtensa.c:6013 null pointer bsearchAlan Modra2-6/+14
PR 26507 * elf32-xtensa.c (find_removed_literal): Don't bsearch empty map.
2020-08-26PR26506 UBSAN: elf32-xtensa.c:3203 null pointer memcpyAlan Modra2-0/+9
PR 26506 * elf32-xtensa.c (elf_xtensa_combine_prop_entries): Return early when section is empty.
2020-08-26PR26499 UBSAN: eelf32_spu.c:537 member access null pointerAlan Modra2-1/+6
Another &p->field. PR 26499 * emultempl/spuelf.em (spu_elf_relink): Check for NULL tmp_file_list.
2020-08-26PR26498 UBSAN: elf32-spu.c:2292 left shift overflowAlan Modra2-2/+8
PR 26498 * elf32-spu.c (find_function_stack_adjust): Use unsigned vars to avoid UB left shift.
2020-08-26PR 26484-26488, 26490 UBSAN &h->elf null pointerAlan Modra2-18/+40
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.
2020-08-26PR26478 UBSAN: mmo.c:2941 null pointer memcpyAlan Modra2-1/+7
PR 26478 * mmo.c (mmo_write_symbols_and_terminator): Don't memcpy empty table.
2020-08-26PR26475 UBSAN: elfxx-mips.c:12180 null pointer memsetAlan Modra2-1/+8
Another memset(0,0,0) PR 26475 * elfxx-mips.c (_bfd_mips_elf_finish_dynamic_sections): Check sstubs->contents != NULL.
2020-08-26PR26458 UBSAN: elf32-i386.c:3615 left shift of negative valueAlan Modra2-1/+6
Happens when poking symbol index -2 into r_info. (The index is updated before writing out to file.) PR 26458 * elf/common.h (ELF32_R_INFO): Cast symbol index to unsigned.
2020-08-26PR26453 UBSAN: som.c:2885 null pointer memcpyAlan Modra2-0/+8
PR 26453 * som.c (som_prep_for_fixups): Return early when no symbols.
2020-08-26PR26448 UBSAN: symbols.c:1586 left shift of negative valueAlan Modra2-2/+26
Besides avoiding the UB, this also makes right shifts inside expression symbols unsigned, consistent with the way gas evaluates expressions in source. PR 26448 * symbols.c: Include limits.h. (resolve_symbol_value <O_left_shift, O_right_shift>): Do an unsigned shift. Warn if shift count larger than valueT size.
2020-08-26PR26447 UBSAN: expr.c:1936 left shift of negative valueAlan Modra2-6/+22
PR 26447 * expr.c (expr <O_left_shift>): Do an unsigned shift.
2020-08-26PR26431 UBSAN: pe-dll.c:568 null pointer bsearchAlan Modra2-2/+8
PR 26431 * pe-dll.c (auto_export): Don't call bsearch with zero count.
2020-08-26PR26418 UBSAN: cache.c:386 null pointer fwriteAlan Modra2-4/+11
PR 26418 * ecofflink.c (WRITE): Don't write size 0 chunks.
2020-08-26asan: alpha-vms: mmember access within null pointerAlan Modra2-7/+15
* bfdio.c (bfd_get_file_size): Don't segv on NULL adata.
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