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2021-03-18libctf: don't lose track of all valid types upon serializationNick Alcock2-0/+6
One pattern which is rarely done in libctf but which is meant to work is this: ctf_create(); ctf_add_*(); // add stuff ctf_type_*() // look stuff up ctf_write_*(); ctf_add_*(); // should still work ctf_type_*() // so should this ctf_write_*(); // and this i.e., writing out a dict should not break it and you should be able to do everything you could do with it before, including writing it out again. Unfortunately this has been broken for a while because the field which indicates the maximum valid type ID was not preserved across serialization: so type additions after serialization would overwrite types (obviously disastrous) and type lookups would just fail. Fix trivial. libctf/ChangeLog 2021-03-18 Nick Alcock <nick.alcock@oracle.com> * ctf-serialize.c (ctf_serialize): Preserve ctf_typemax across serialization.
2021-03-18Add install dependencies for ld -> bfd and libctf -> bfdNick Alcock3-2/+23
This stops problems parallel-installing if a relink of libctf is needed. Also adds corresponding install-strip dependencies. ChangeLog 2021-03-18 Nick Alcock <nick.alcock@oracle.com> PR libctf/27482 * Makefile.def: Add install-bfd dependencies for install-libctf and install-ld, and install-strip-bfd dependencies for install-strip-libctf and install-strip-ld; move the install-ld dependency on install-libctf to join it. * Makefile.in: Regenerated.
2021-03-18libctf: eliminate dtd_u, part 3: functionsNick Alcock5-35/+28
One more member vanishes from the dtd_u, leaving only the member for struct/union/enum members. There's not much to do here, since as of commit afd78bd6f0a30ba5 we use the same representation (type sizes, etc) in the dtu_argv as we will use in the final vlen, with one exception: the vlen has alignment padding, and the dtu_argv did not. Simplify things by adding suitable padding in both cases. libctf/ChangeLog 2021-03-18 Nick Alcock <nick.alcock@oracle.com> * ctf-impl.h (ctf_dtdef_t) <dtd_u.dtu_argv>: Remove. * ctf-create.c (ctf_dtd_delete): No longer free it. (ctf_add_function): Use the dtd_vlen, not dtu_argv. Properly align. * ctf-serialize.c (ctf_emit_type_sect): Just copy the dtd_vlen. * ctf-types.c (ctf_func_type_info): Just use the vlen. (ctf_func_type_args): Likewise.
2021-03-18libctf: eliminate dtd_u, part 2: arraysNick Alcock5-16/+27
This is even simpler than ints, floats and slices, with the only extra complication being the need to manually transfer the array parameter in the rarely-used function ctf_set_array. (Arrays are unique in libctf in that they can be modified post facto, not just created and appended to. I'm not sure why they got this exemption, but it's easy to maintain.) libctf/ChangeLog 2021-03-18 Nick Alcock <nick.alcock@oracle.com> * ctf-impl.h (ctf_dtdef_t) <dtd_u.dtu_arr>: Remove. * ctf-create.c (ctf_add_array): Use the dtd_vlen, not dtu_arr. (ctf_set_array): Likewise. * ctf-serialize.c (ctf_emit_type_sect): Just copy the dtd_vlen. * ctf-types.c (ctf_array_info): Just use the vlen.
2021-03-18libctf: eliminate dtd_u, part 1: int/float/sliceNick Alcock6-78/+92
This series eliminates a lot of special-case code to handle dynamic types (types added to writable dicts and not yet serialized). Historically, when such types have variable-length data in their final CTF representations, libctf has always worked by adding such types to a special union (ctf_dtdef_t.dtd_u) in the dynamic type definition structure, then picking the members out of this structure at serialization time and packing them into their final form. This has the advantage that the ctf_add_* code doesn't need to know anything about the final CTF representation, but the significant disadvantage that all code that looks up types in any way needs two code paths, one for dynamic types, one for all others. Historically libctf "handled" this by not supporting most type lookups on dynamic types at all until ctf_update was called to do a complete reserialization of the entire dict (it didn't emit an error, it just emitted wrong results). Since commit 676c3ecbad6e9c4, which eliminated ctf_update in favour of the internal-only ctf_serialize function, all the type-lookup paths grew an extra branch to handle dynamic types. We can eliminate this branch again by dropping the dtd_u stuff and simply writing out the vlen in (close to) its final form at ctf_add_* time: type lookup for types using this approach is then identical for types in writable dicts and types that are in read-only ones, and serialization is also simplified (we just need to write out the vlen we already created). The only complexity lies in type kinds for which multiple vlen representations are valid depending on properties of the type, e.g. structures. But we can start simple, adjusting ints, floats, and slices to work this way, and leaving everything else as is. libctf/ChangeLog 2021-03-18 Nick Alcock <nick.alcock@oracle.com> * ctf-impl.h (ctf_dtdef_t) <dtd_u.dtu_enc>: Remove. <dtd_u.dtu_slice>: Likewise. <dtd_vlen>: New. * ctf-create.c (ctf_add_generic): Perhaps allocate it. All callers adjusted. (ctf_dtd_delete): Free it. (ctf_add_slice): Use the dtd_vlen, not dtu_enc. (ctf_add_encoded): Likewise. Assert that this must be an int or float. * ctf-serialize.c (ctf_emit_type_sect): Just copy the dtd_vlen. * ctf-dedup.c (ctf_dedup_rhash_type): Use the dtd_vlen, not dtu_slice. * ctf-types.c (ctf_type_reference): Likewise. (ctf_type_encoding): Remove most dynamic-type-specific code: just get the vlen from the right place. Report failure to look up the underlying type's encoding.
2021-03-18libctf: fix GNU style for do {} whileNick Alcock6-46/+63
It's formatted like this: do { ... } while (...); Not like this: do { ... } while (...); or this: do { ... } while (...); We used both in various places in libctf. Fixing it necessitated some light reindentation. libctf/ChangeLog 2021-03-18 Nick Alcock <nick.alcock@oracle.com> * ctf-archive.c (ctf_archive_next): GNU style fix for do {} while. * ctf-dedup.c (ctf_dedup_rhash_type): Likewise. (ctf_dedup_rwalk_one_output_mapping): Likewise. * ctf-dump.c (ctf_dump_format_type): Likewise. * ctf-lookup.c (ctf_symbol_next): Likewise. * swap.h (swap_thing): Likewise.
2021-03-18libctf: split up ctf_serializeNick Alcock2-317/+424
ctf_serialize and its various pieces may be split out into a separate file now, but ctf_serialize is still far too long and disordered, mixing header initialization, sizing of multiple CTF sections, sorting and emission of multiple CTF sections, strtab construction and ctf_dict_t copying into a single ugly organically-grown mess. Fix the worst of this by migrating all section sizing and emission into separate functions, two per section (or class of section in the case of the symtypetabs). Only the variable section is now sized and emitted directly in ctf_serialize (because it only takes about three lines to do so). The section sizes themselves are still maintained by ctf_serialize so that it can work out the header offsets, but ctf_symtypetab_sect_sizes and ctf_emit_symtypetab_sects share a lot of extra state: migrate that into a shared structure, emit_symtypetab_state_t. (Test results unchanged.) libctf/ChangeLog 2021-03-18 Nick Alcock <nick.alcock@oracle.com> * ctf-serialize.c: General reshuffling, and... (emit_symtypetab_state_t): New, migrated from local variables in ctf_serialize. (ctf_serialize): Split out most section sizing and emission. (ctf_symtypetab_sect_sizes): New (split out). (ctf_emit_symtypetab_sects): Likewise. (ctf_type_sect_size): Likewise. (ctf_emit_type_sect): Likewise.
2021-03-18libctf: fix comment above ctf_dict_tNick Alcock2-5/+10
It is perfectly possible to have dynamically allocated data owned by a specific dict: you just have to teach ctf_serialize about it. libctf/ChangeLog 2021-03-18 Nick Alcock <nick.alcock@oracle.com> * ctf-impl.h (ctf_dict_t): Fix comment.
2021-03-18libctf: split serialization and file writeout into its own fileNick Alcock5-1324/+1391
The code to serialize CTF dicts just gets bigger and bigger as the dictionary's complexity grows: adding symtypetabs almost doubled it on its own. It's long past time to split this out into its own source file, accompanied by the functions that do the actual writeout. This leaves ctf-create.c populated exclusively by functions related to actual writable dict creation (ctf_add_*, ctf_create etc), and leaves both files a much more reasonable size. libctf/ChangeLog 2021-03-18 Nick Alcock <nick.alcock@oracle.com> * ctf-create.c (symtypetab_delete_nonstatic_vars): Move into ctf-serialize.c. (ctf_symtab_skippable): Likewise. (CTF_SYMTYPETAB_EMIT_FUNCTION): Likewise. (CTF_SYMTYPETAB_EMIT_PAD): Likewise. (CTF_SYMTYPETAB_FORCE_INDEXED): Likewise. (symtypetab_density): Likewise. (emit_symtypetab): Likewise. (emit_symtypetab_index): Likewise. (ctf_copy_smembers): Likewise. (ctf_copy_lmembers): Likewise. (ctf_copy_emembers): Likewise. (ctf_sort_var): Likewise. (ctf_serialize): Likewise. (ctf_gzwrite): Likewise. (ctf_compress_write): Likewise. (ctf_write_mem): Likewise. (ctf_write): Likewise. * ctf-serialize.c: New file. * Makefile.am (libctf_nobfd_la_SOURCES): Add it. * Makefile.in: Regenerate.
2021-03-18libctf: fix some tabdamage and move some code aroundNick Alcock5-56/+65
ctf-link.c is unnecessarily confusing because ctf_link_lazy_open is positioned near functions that have nothing to do with opening files. Move it around, and fix some tabdamage that's crept in lately. libctf/ChangeLog 2021-03-18 Nick Alcock <nick.alcock@oracle.com> * ctf-link.c (ctf_link_lazy_open): Move up in the file, to near ctf_link_add_ctf. * ctf-lookup.c (ctf_lookup_symbol_idx): Repair tabdamage. (ctf_lookup_by_sym_or_name): Likewise. * testsuite/libctf-lookup/struct-iteration.c: Likewise. * testsuite/libctf-regression/type-add-unnamed-struct.c: Likewise.
2021-03-18Automatic date update in version.inGDB Administrator1-1/+1
2021-03-17gdb: remove unneeded argument in check_multi_target_resumptionSimon Marchi2-1/+6
If we reach the modified line, resume_target is necessarily nullptr, because of the check at the beginning of the function. So we'll necessarily iterate on all non-exited inferiors (across all targets), which is what we want. So just remove the unnecessary argument. gdb/ChangeLog: * infrun.c (check_multi_target_resumption): Remove argument to all_non_exited_inferiors. Change-Id: If95704915dca19599d5f7f4732bbd6ccd20bf6b4
2021-03-17gdb/testsuite: add test for run/attach while program is runningSimon Marchi3-0/+195
A WIP patch series broke the use case of doing "run" or "attach" while the program is running, but it wasn't caught by the testsuite, which means it's not covered. Add a test for that. gdb/testsuite/ChangeLog: * gdb.base/run-attach-while-running.exp: New. * gdb.base/run-attach-while-running.c: New. Change-Id: I77f098ec0b28dc2d4575ea80e941f6a75273e431
2021-03-17Automatic date update in version.inGDB Administrator1-1/+1
2021-03-16Retain .debug_addr sections loaded in the main file.Nick Clifton2-1/+7
PR 27534 * readelf.c (display_debug_section): Also retain .debug_addr sections.
2021-03-16Re-enable the dislay of debug sections in separate debuginfo files without ↵Nick Clifton2-2/+13
the need for -P. PR 27533 * readelf.c (process_section_contents): Only dump debug information for separate files unless process_links is enabled. (process_object): Always call process_section_contents for separate info files.
2021-03-16Fix cygwin build errorChristian Biesinger2-1/+6
With "gcc version 10.2.0 (GCC)" on cygwin, I get this build error: CXX windows-nat.o In file included from ../../gdb/../gdbsupport/common-defs.h:129, from ../../gdb/defs.h:28, from ../../gdb/windows-nat.c:24: ../../gdb/windows-nat.c: In function 'void windows_init_thread_list()': ../../gdb/windows-nat.c:513:17: error: zero-length gnu_printf format string [-Werror=format-zero-length] 513 | DEBUG_EVENTS (""); | ^~ ../../gdb/../gdbsupport/common-debug.h:65:43: note: in definition of macro 'debug_prefixed_printf_cond' 65 | debug_prefixed_printf (module, __func__, fmt, ##__VA_ARGS__); \ | ^~~ ../../gdb/windows-nat.c:513:3: note: in expansion of macro 'DEBUG_EVENTS' 513 | DEBUG_EVENTS (""); | ^~~~~~~~~~~~ cc1plus: all warnings being treated as errors This was introduced in 4ef367bffd73d50002339deba40983530ccb9d15, which removed the function name from this debug message: - DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); + DEBUG_EVENTS (""); DEBUG_EVENTS now always includes the function name, so just add a "called" message to fix the compile error. gdb/ChangeLog: 2021-03-16 Christian Biesinger <cbiesinger@google.com> * windows-nat.c (windows_init_thread_list): Add message to debug log.
2021-03-16Fix potentially undefined behaviour use of strcpcy.Nick Clifton2-1/+8
* pe-dll.c (pe_find_cdecl_alias_match): Use memmove to overwrite lname string.
2021-03-16Fix a potential buffer overrun qwhen writing out PE aux entries.Nick Clifton4-3/+14
* peXXigen.c (_bfd_XXi_swap_aux_out): Avoid potential buffer overrun by using sizeof of the destination x_fname field as the limit for a memcpy. * coff/internal.h (struct internal_auxent): Fix a couple of typos in comment describing the x_fname field.
2021-03-16gdb/python: fix FrameDecorator regression on Python 2Andrew Burgess6-1/+169
This commit: commit d1cab9876d72d867b2de82688f5f5a2a4b655edb Date: Tue Sep 15 11:08:56 2020 -0600 Don't use gdb_py_long_from_ulongest Introduced a regression when GDB is compiled with Python 2. The frame filter API expects the gdb.FrameDecorator.function () method to return either a string (the name of a function) or an address, which GDB then uses to lookup a msymbol. If the address returned from gdb.FrameDecorator.function () comes from gdb.Frame.pc () then before the above commit we would always expect to see a PyLong object. After the above commit we might (on Python 2) get a PyInt object. The GDB code does not expect to see a PyInt, and only checks for a PyLong, we then see an error message like: RuntimeError: FrameDecorator.function: expecting a String, integer or None. This commit just adds an additional call to PyInt_Check which handle the missing case. I had already written a test case to cover this issue before spotting that the gdb.python/py-framefilter.exp test also triggers this failure. As the new test case is slightly different I have kept it in. The new test forces the behaviour of gdb.FrameDecorator.function returning an address. The reason the existing test case hits this is due to the behaviour of the builtin gdb.FrameDecorator base class. If the base class behaviour ever changed then the return an address case would only be tested by the new test case. gdb/ChangeLog: * python/py-framefilter.c (py_print_frame): Use PyInt_Check as well as PyLong_Check for Python 2. gdb/testsuite/ChangeLog: * gdb.python/py-framefilter-addr.c: New file. * gdb.python/py-framefilter-addr.exp: New file. * gdb.python/py-framefilter-addr.py: New file.
2021-03-16gdb/testsuite: squash duplicate test names in gdb.threads/*.expAndrew Burgess7-48/+77
Resolve all of the duplicate test names in the gdb.threads/*.exp set of tests (that I see). Nothing very exciting here, mostly either giving tests explicit testnames, or adding with_test_prefix. The only interesting one is gdb.threads/execl.exp, I believe the duplicate test name was caused by an actual duplicate test. I've remove the simpler form of the test. I don't believe we've lost any test coverage with this change. gdb/testsuite/ChangeLog: * gdb.threads/execl.exp: Remove duplicate 'info threads' test. Make use of $gdb_test_name instead of creating a separate $test variable. * gdb.threads/print-threads.exp: Add a with_test_prefix instead of adding a '($name)' at the end of each test. This also catches the one place where '($name)' was missing, and so caused a duplicate test name. * gdb.threads/queue-signal.exp: Give tests unique names to avoid duplicate test names based on the command being tested. * gdb.threads/signal-command-multiple-signals-pending.exp: Likewise. * lib/gdb.exp (gdb_compile_shlib_pthreads): Tweak test name to avoid duplicate testnames when a test script uses this proc and also gdb_compile_pthreads. * lib/prelink-support.exp (build_executable_own_libs): Use with_test_prefix to avoid duplicate test names when we call build_executable twice.
2021-03-16RISC-V : Support bitmanip-0.93 ZBA/ZBB/ZBC instructionsKuan-Lin Chen13-5/+340
bfd/ * elfxx-riscv.c (riscv_std_z_ext_strtab): Add zba, zbb and zbc. gas/ * config/tc-riscv.c (ext_version_table): Add b, zba, zbb and zbc. (riscv_multi_subset_supports): Add INSN_CLASS_ZB*. * testsuite/gas/riscv/b-ext-64.s: Bitmanip test case. * testsuite/gas/riscv/b-ext-64.d: Likewise. * testsuite/gas/riscv/b-ext.s: Likewise. * testsuite/gas/riscv/b-ext.d: Likewise. include/ * opcode/riscv-opc.h: Support zba, zbb and zbc extensions. * opcode/riscv.h (riscv_insn_class): Add INSN_CLASS_ZB*. opcodes/ * riscv-opc.c (riscv_opcodes): Add zba, zbb and zbc instructions.
2021-03-16Automatic date update in version.inGDB Administrator1-1/+1
2021-03-15Fix GDB build with GCC 4.8.2Tom Tromey3-2/+12
PR build/27579 points out that the expression rewrite series introduced a build failure with GCC 4.8.2. The bug is that there's no std::hash specialization for enum exp_opcode. This patch fixes the problem by using gdb::hash_enum. 2021-03-15 Tom Tromey <tromey@adacore.com> PR build/27579: * rust-exp.y (maker_map): Use gdb::hash_enum. * stap-probe.c (stap_maker_map): Use gdb::hash_enum.
2021-03-15gdb: remove spurious colon in create_debug_type_hash_table debug printSimon Marchi2-1/+6
This printout in create_debug_type_hash_table has an unexpected colon at the end, remove it: [dwarf-read] create_debug_type_hash_table: Reading .debug_info for /home/simark/build/binutils-gdb/gdb/a.out: gdb/ChangeLog: * dwarf2/read.c (create_debug_type_hash_table): Remove colon at end of debug print. Change-Id: I2d707248249daf4d8b6fa8e7064acdc56c90f2dd
2021-03-15gdb: add logging to dwarf2_initialize_objfileSimon Marchi1-1/+14
I added these printouts while working on 27541. I won't have a fix for that right now, but I thought that it would be useful to merge them upstream, as they help understand what happens in that function. gdb/ChangeLog: * dwarf2/read.c (dwarf2_initialize_objfile): Add debug prints. Change-Id: I790c0d53383327038cb5dd705f74c8c978e0a7ec
2021-03-15gdb: remove dw2_get_file_names_reader's info_ptr parameterSimon Marchi2-2/+6
I noticed that this parameter was unused, remove it. gdb/ChangeLog: * dwarf2/read.c (dw2_get_file_names_reader): Remove info_ptr parameter, adjust caller. Change-Id: I2a741766a0c658c22c512590aeffdd07391c869c
2021-03-15Fix unary + in AdaTom Tromey4-3/+18
My previous Ada patches introduced a bug that I found after checkin. I had incorrectly implemented unary +. There was a test for the overloaded case, but no test for the ordinary case. This patch adds the tests and fixes the bug. Tested on x86-64 Fedora 32. gdb/ChangeLog 2021-03-15 Tom Tromey <tromey@adacore.com> * ada-exp.y (simple_exp): Always push a result for unary '+'. gdb/testsuite/ChangeLog 2021-03-15 Tom Tromey <tromey@adacore.com> * gdb.ada/fixed_points.exp: Add tests of unary + and -.
2021-03-15Call ada_ensure_varsize_limit in indirectionTom Tromey5-1/+30
Internal testing revealed yet another Ada regression from the expression rewrite. In this case, indirection did not use the Ada varsize limit. The old code relied on the expression resolution process to evaluate this subexpression with EVAL_AVOID_SIDE_EFFECTS in order to get this error. However, this isn't always done in the new approach; so this patch introduces another call to ada_ensure_varsize_limit in the appropriate spot. As with the earlier patches, this path was not tested in-tree, so this patch also updates a test. gdb/ChangeLog 2021-03-15 Tom Tromey <tromey@adacore.com> * ada-lang.c (ada_unop_ind_operation::evaluate): Call ada_ensure_varsize_limit. gdb/testsuite/ChangeLog 2021-03-15 Tom Tromey <tromey@adacore.com> * gdb.ada/varsize_limit.exp: Add new test. * gdb.ada/varsize_limit/vsizelim.adb: Update.
2021-03-15Implement Ada operator overloadingTom Tromey8-35/+467
In the expression rewrite, I neglected to carry over support for Ada operator overloading. It turns out that there were no tests for this in-tree. This patch adds support for operator overloading, and adds the missing test. gdb/ChangeLog 2021-03-15 Tom Tromey <tromey@adacore.com> * ada-lang.c (numeric_type_p, integer_type_p): Return true for fixed-point. * ada-exp.y (maybe_overload): New function. (ada_wrap_overload): New function. (ada_un_wrap2, ada_wrap2, ada_wrap_op): Use maybe_overload. (exp1, simple_exp, relation, and_exp, and_then_exp, or_exp) (or_else_exp, xor_exp, primary): Update. gdb/testsuite/ChangeLog 2021-03-15 Tom Tromey <tromey@adacore.com> * gdb.ada/operator_call/twovecs.ads: New file. * gdb.ada/operator_call/twovecs.adb: New file. * gdb.ada/operator_call/opcall.adb: New file. * gdb.ada/operator_call.exp: New file.
2021-03-15Fix regression in Ada ptypeTom Tromey2-2/+7
This fixes PR ada/27545, which points out that a test in gdb.ada/tagged.exp started failing due to the expression rewrite. I didn't notice this failure because my system gcc-gnat debuginfo was out of date, and so the test was already failing in the baseline. Previously, the OP_VAR_VALUE case in ada_evaluate_subexp ended up doing a recursive call: arg1 = evaluate_subexp (nullptr, exp, pos, EVAL_NORMAL); However, during the rewrite I missed this fact and had the new code call the superclass implementation. This patch fixes the bug by changing this code to use a recursive call instead. gdb/ChangeLog 2021-03-15 Tom Tromey <tromey@adacore.com> PR ada/27545: * ada-lang.c (ada_var_value_operation::evaluate): Use recursive call for tagged type.
2021-03-15Fix Ada assignment resolutionTom Tromey7-1/+142
The expression rewrite missed an Ada resolution case. GDB previously knew how to disambiguate the right hand side of an assignment, but now it does not. This patch fixes the problem and adds the missing test case. gdb/ChangeLog 2021-03-15 Tom Tromey <tromey@adacore.com> * ada-exp.y (exp1): Handle resolution of the right hand side of an assignment. gdb/testsuite/ChangeLog 2021-03-15 Tom Tromey <tromey@adacore.com> * gdb.ada/enums_overload/enums_overload_main.adb: New file. * gdb.ada/enums_overload/enums_overload.ads: New file. * gdb.ada/enums_overload/enums_overload.adb: New file. * gdb.ada/enums_overload.exp: New file.
2021-03-15Fix bug in Ada aggregate assignmentTom Tromey8-11/+72
The expression rewrite caused a regression in the internal AdaCore test suite. The bug was that I had dropped a bit of code from aggregate assignment -- assign_aggregate used to return the container, which I thought was redundant, but which can actually change during the call. There was no test for this case in the tree, so I've added one. gdb/ChangeLog 2021-03-15 Tom Tromey <tromey@adacore.com> * ada-lang.c (ada_aggregate_operation::assign_aggregate): Return container. (ada_assign_operation::evaluate): Update. * ada-exp.h (class ada_aggregate_operation) <assign_aggregate>: Change return type. gdb/testsuite/ChangeLog 2021-03-15 Tom Tromey <tromey@adacore.com> * gdb.ada/assign_arr/target_wrapper.ads (IArray, Put, Do_Nothing): Declare. * gdb.ada/assign_arr/target_wrapper.adb: New file. * gdb.ada/assign_arr/main_p324_051.adb (IValue): New variable. Call Put. * gdb.ada/assign_arr.exp: Update.
2021-03-15Add a symbols-only mode to nm.Nick Clifton4-38/+137
PR 27487 * nm.c (FORMAT_JUST_SYMBOLS): Define. (struct optput_fns): Add entry for FORMAT_JUST_SYMBOLS. (long_options): Add just-symbols. (set_output_format): Add support for just-symbols. (get_print_format): Likewise. (do_not_print_object_filename): New function. (do_not_print_archive_filename): New function. (do_not_print_archive_member): New function. (do_not_print_symbol_filename): New function. (just_print_symbol_name): New function. (main): Handle --just-symbols. * NEWS: Mention the new feature. * doc/binutils.texi: Document the new feature.
2021-03-15gdb/fortran: Fix quad floating-point type for Intel compilers.Felix Willgerodt2-1/+8
Intel Fortran compilers emit the following DWARF for gdb.fortran/complex.f90: 0x00000071: DW_TAG_base_type DW_AT_name ("COMPLEX*32") DW_AT_encoding (DW_ATE_complex_float) DW_AT_byte_size (0x20) 0x00000078: DW_TAG_base_type DW_AT_name ("REAL*16") DW_AT_encoding (DW_ATE_float) DW_AT_byte_size (0x10) This results in GDB not reading the right values, as it wrongly assumes the default floatformat "floatformat_i387_ext" instead of "floatformat_ia64_quad_little". gdb/ChangeLog: 2021-03-15 Felix Willgerodt <felix.willgerodt@intel.com> * i386-tdep.c (i386_floatformat_for_type): Add COMPLEX*32 and REAL*16.
2021-03-15ld: don't chance overrunning PE .reloc section contentJan Beulich2-3/+4
The allocation of reloc_d doesn't take reloc_s->size into account. There is already padding being emitted up to the allocated size. While reloc_s->size ought to still be zero at this point anyway (and hence the code being deleted would have been just dead), don't risk writing past the actual allocation.
2021-03-15gdb: use make_scoped_restore to restore gdbpy_current_objfileAndrew Burgess9-6/+264
The current mechanism by which the Python gdb.current_objfile is maintained does not allow for nested auto-load events. It is assumed that once an auto-load script has finished loading then the current objfile should be set back to NULL. In a nested situation, we should be restoring the previous value. We already have an RAII class to handle save/restore type behaviour, so lets just switch to use that. The test is a little contrived, but is simple enough, and triggers the bug. The real use case might involve the auto-load script calling functions (either in the just-loaded object file, or in the main executable), which in turn trigger further auto-loads to occur. gdb/ChangeLog: * python/python.c (gdbpy_source_objfile_script): Use make_scoped_restore to restore gdbpy_current_objfile. (gdbpy_execute_objfile_script): Likewise. gdb/testsuite/ChangeLog: * gdb.python/py-auto-load-chaining-f1.c: New file. * gdb.python/py-auto-load-chaining-f1.o-gdb.py: New file. * gdb.python/py-auto-load-chaining-f2.c: New file. * gdb.python/py-auto-load-chaining-f2.o-gdb.py: New file. * gdb.python/py-auto-load-chaining.c: New file. * gdb.python/py-auto-load-chaining.exp: New file.
2021-03-15Automatic date update in version.inGDB Administrator1-1/+1
2021-03-14Use cu_header consistently in read_attribute_valueTom Tromey2-11/+16
read_attribute_value has a local cu_header variable, but then some spots in the function use cu->header instead. It seems better to me to prefer the local everywhere, so this patch makes this change. gdb/ChangeLog 2021-03-14 Tom Tromey <tom@tromey.com> * dwarf2/read.c (read_attribute_value): Use cu_header consistently.
2021-03-14Minor tweak to use die_reader_specs::abfdTom Tromey2-2/+7
For an experiment I'm working on, it would be convenient if die_reader_specs::cu could be NULL. This is fairly involved to implement, but I did notice one spot that could conveniently be updated. While making this trivial change, I also noticed a small, related formatting error. 2021-03-14 Tom Tromey <tom@tromey.com> * dwarf2/read.c (struct die_reader_specs) <abfd>: Fix formatting. (peek_die_abbrev): Use reader.abfd.
2021-03-14Set dwarf2_per_cu_data::m_header_read_inTom Tromey2-0/+7
I noticed that nothing in dwarf2/read.c sets dwarf2_per_cu_data::m_header_read_in. This patch adds the appropriate assignment. gdb/ChangeLog 2021-03-14 Tom Tromey <tom@tromey.com> * dwarf2/read.c (dwarf2_per_cu_data::get_header): Set m_header_read_in.
2021-03-14Automatic date update in version.inGDB Administrator1-1/+1
2021-03-13Constify abbrev_table::lookup_abbrevTom Tromey3-10/+20
This changes abbrev_table::lookup_abbrev to return a pointer to const, then fixes up the affected code. gdb/ChangeLog 2021-03-13 Tom Tromey <tom@tromey.com> * dwarf2/read.c (struct partial_die_info): Update. (peek_die_abbrev, skip_children, skip_one_die, read_full_die_1) (load_partial_dies, partial_die_info::partial_die_info): Update. * dwarf2/abbrev.h (lookup_abbrev): Constify.
2021-03-13Remove Irix 6 workaround from DWARF abbrev readerTom Tromey2-19/+13
abbrev_table::read has a workaround for Irix 6. The last release of Irix was in 2006, and (according to Wikipedia) hardware produced after 2007 cannot run Irix. I think this workaround can safely be retired. gdb/ChangeLog 2021-03-13 Tom Tromey <tom@tromey.com> * dwarf2/abbrev.c (abbrev_table::read): Remove Irix 6 workaround.
2021-03-13sim: rename BUILD_LDFLAGS to LDFLAGS_FOR_BUILDMike Frysinger8-5/+31
The rest of the binutils tree renamed this variable many years ago.
2021-03-13sim: introduce {COMPILE,LINK}_FOR_BUILDMike Frysinger16-49/+111
These use the same pattern as seen in the opcodes/ dir and in automake in general (ish). This helps simplify the boilerplate for building and linking build-time code, and fixes some inconsistency in flag usage. For rules that were compiling+linking in a single step, split them into separate steps so we can apply the correct set of options. This matches automake behavior too.
2021-03-12sim: drop dep on configure-gdbMike Frysinger3-2/+5
I'm not entirely sure why this is here since the sim doesn't use anything from the gdb/ dir directly, and the commit that added it included a bunch more changes and doesn't seem to call out this dep specifically.
2021-03-13Automatic date update in version.inGDB Administrator1-1/+1
2021-03-12Use RAII to set the per-thread SIGSEGV handlerChristian Biesinger4-12/+51
This avoids using a thread-local extern variable, which causes link errors on some platforms, notably Cygwin. But I think this is a better pattern even outside of working around linker bugs because it encapsulates direct access to the variable inside the class, instead of having a global extern variable. The cygwin link error is: cp-support.o: in function `gdb_demangle(char const*, int)': /home/Christian/binutils-gdb/obj/gdb/../../gdb/cp-support.c:1619:(.text+0x6472): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `TLS init function for thread_local_segv_handler' /home/Christian/binutils-gdb/obj/gdb/../../gdb/cp-support.c:1619:(.text+0x648b): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `TLS init function for thread_local_segv_handler' collect2: error: ld returned 1 exit status 2021-03-12 Christian Biesinger <cbiesinger@google.com> PR threads/27239 * cp-support.c: Use scoped_segv_handler_restore. * event-top.c (thread_local_segv_handler): Made static. (scoped_segv_handler_restore::scoped_segv_handler_restore): New function. (scoped_segv_handler_restore::~scoped_segv_handler_restore): New function. * event-top.h (class scoped_segv_handler_restore): New class. (thread_local_segv_handler): Removed.
2021-03-12Add values for NetBSD .note.netbsd.ident notes (PaX).Frederic Cambus2-0/+15
* elf/common.h (NT_NETBSD_PAX, NT_NETBSD_PAX_MPROTECT) (NT_NETBSD_PAX_NOMPROTECT, NT_NETBSD_PAX_GUARD, NT_NETBSD_PAX_NOGUARD) (NT_NETBSD_PAX_ASLR, NT_NETBSD_PAX_NOASLR): Define.