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2022-04-12Add batching parameter to parallel_for_eachTom Tromey1-2/+2
parallel_for_each currently requires each thread to process at least 10 elements. However, when indexing, it's fine for a thread to handle just a single CU. This patch parameterizes this, and updates the one user.
2022-04-11gdb: remove minimal symbol size macrosSimon Marchi1-11/+10
Remove MSYMBOL_HAS_SIZE, MSYMBOL_SIZE and SET_MSYMBOL_SIZE, replace them with equivalent methods. Change-Id: I6ee1cf82df37e58dff52ea6568ceb4649c7d7538
2022-04-11gdb: remove MSYMBOL_TYPE macroSimon Marchi1-22/+21
Add a getter and a setter for a minimal symbol's type. Remove the corresponding macro and adjust all callers. Change-Id: I89900df5ffa5687133fe1a16b2e0d4684e67a77d
2022-04-11gdb: remove symbol value macrosSimon Marchi1-28/+27
Remove all macros related to getting and setting some symbol value: #define SYMBOL_VALUE(symbol) (symbol)->value.ivalue #define SYMBOL_VALUE_ADDRESS(symbol) \ #define SET_SYMBOL_VALUE_ADDRESS(symbol, new_value) \ #define SYMBOL_VALUE_BYTES(symbol) (symbol)->value.bytes #define SYMBOL_VALUE_COMMON_BLOCK(symbol) (symbol)->value.common_block #define SYMBOL_BLOCK_VALUE(symbol) (symbol)->value.block #define SYMBOL_VALUE_CHAIN(symbol) (symbol)->value.chain #define MSYMBOL_VALUE(symbol) (symbol)->value.ivalue #define MSYMBOL_VALUE_RAW_ADDRESS(symbol) ((symbol)->value.address + 0) #define MSYMBOL_VALUE_ADDRESS(objfile, symbol) \ #define BMSYMBOL_VALUE_ADDRESS(symbol) \ #define SET_MSYMBOL_VALUE_ADDRESS(symbol, new_value) \ #define MSYMBOL_VALUE_BYTES(symbol) (symbol)->value.bytes #define MSYMBOL_BLOCK_VALUE(symbol) (symbol)->value.block Replace them with equivalent methods on the appropriate objects. Change-Id: Iafdab3b8eefc6dc2fd895aa955bf64fafc59ed50
2022-03-29Unify gdb printf functionsTom Tromey1-21/+21
Now that filtered and unfiltered output can be treated identically, we can unify the printf family of functions. This is done under the name "gdb_printf". Most of this patch was written by script.
2022-02-18Add constructor to bound_minimal_symbolTom Tromey1-5/+5
This adds a constructor to bound_minimal_symbol, to avoid a build failure with clang that Simon pointed out. I also took the opportunity to remove some redundant initializations, and to change one use of push_back to emplace_back, as suggested by Simon.
2022-01-01Automatic Copyright Year update after running gdb/copyright.pyJoel Brobecker1-1/+1
This commit brings all the changes made by running gdb/copyright.py as per GDB's Start of New Year Procedure. For the avoidance of doubt, all changes in this commits were performed by the script.
2021-12-29Send minsym logging to gdb_stdlogTom Tromey1-3/+4
This changes minsyms.c to send logging output to gdb_stdlog. This is part of PR gdb/7233. Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=7233
2021-10-04Use unique_xmalloc_ptr<char> when demanglingTom Tromey1-2/+3
I noticed that some methods in language_defn could use unique_xmalloc_ptr<char> rather than a plain 'char *'. This patch implements this change, fixing up the fallout and changing gdb_demangle to also return this type. In one spot, std::string is used to simplify some related code, and in another, an auto_obstack is used to avoid manual management. Regression tested on x86-64 Fedora 34.
2021-06-28gdb: convert obj_section macros to methodsSimon Marchi1-4/+4
Convert these three macros to methods of obj_section. The problem fixed by the following patch is caused by an out of bound access of the objfile::section_offsets vector. Since this is deep in macros, we don't get a clear backtrace and it's difficult to debug. Changing that to methods means we can step in them and break on them. Because their implementation requires knowing about struct objfile, move struct obj_section below struct objfile in objfiles.h. The obj_section_offset was used in one place as an lvalue to set offsets, in machoread.c. Replace that with a set_offset method. Add the objfile::section_offset and objfile::set_section_offset methods to improve encapsulation (reduce other objects poking into struct objfile's internals). gdb/ChangeLog: * objfiles.h (struct obj_section): Move down. <offset, set_offset, addr, endaddr>: New. (obj_section_offset, obj_section_addr, obj_section_endaddr), replace all users to use obj_section methods. (struct objfile) <section_offset, set_section_offset>: New. Change-Id: I97e8fcae93ab2353fbdadcb4a5ec10d7949a7334
2021-06-01[gdb/symtab] Ignore cold clonesTom de Vries1-0/+52
Consider the test-case contained in this patch, compiled for c using gcc-10: ... $ gcc-10 -x c src/gdb/testsuite/gdb.cp/cold-clone.cc -O2 -g -Wall -Wextra ... When setting a breakpoint on foo, we get one breakpoint location: ... $ gdb -q -batch a.out -ex "b foo" Breakpoint 1 at 0x400560: file cold-clone.cc, line 28. ... However, when we compile for c++ instead, we get two breakpoint locations: ... $ gdb -q -batch a.out -ex "b foo" -ex "info break" Breakpoint 1 at 0x400430: foo. (2 locations) Num Type Disp Enb Address What 1 breakpoint keep y <MULTIPLE> 1.1 y 0x0000000000400430 in foo() at cold-clone.cc:30 1.2 y 0x0000000000400560 in foo() at cold-clone.cc:28 ... The additional breakpoint location at 0x400430 corresponds to the cold clone: ... $ nm a.out | grep foo 0000000000400560 t _ZL3foov 0000000000400430 t _ZL3foov.cold ... which demangled looks like this: ... $ nm -C a.out | grep foo 0000000000400560 t foo() 0000000000400430 t foo() [clone .cold] ... [ Or, in the case of the cc1 mentioned in PR23710: ... $ nm cc1 | grep do_rpo_vn.*cold 000000000058659d t \ _ZL9do_rpo_vnP8functionP8edge_defP11bitmap_headbb.cold.138 $ nm -C cc1 | grep do_rpo_vn.*cold 000000000058659d t \ do_rpo_vn(function*, edge_def*, bitmap_head*, bool, bool) [clone .cold.138] ... ] The cold clone is a part of the function that is split off from the rest of the function because it's considered cold (not frequently executed). So while the symbol points to code that is part of a function, it doesn't point to a function entry, so the desirable behaviour for "break foo" is to ignore this symbol. When compiling for c, the symbol "foo.cold" is entered as minimal symbol with the search name "foo.cold", and the lookup using "foo" fails to find that symbol. But when compiling for c++, the symbol "foo.cold" is entered as minimal symbol with both the mangled and demangled name, and for the demangled name "foo() [clone .cold]" we get the search name "foo" (because cp_search_name_hash stops hashing at '('), and the lookup using "foo" succeeds. Fix this by recognizing the cold clone suffix and returning false for such a minimal symbol in msymbol_is_function. Tested on x86_64-linux. gdb/ChangeLog: 2021-06-01 Tom de Vries <tdevries@suse.de> PR symtab/26096 * minsyms.c (msymbol_is_cold_clone): New function. (msymbol_is_function): Use msymbol_is_cold_clone. gdb/testsuite/ChangeLog: 2021-06-01 Tom de Vries <tdevries@suse.de> PR symtab/26096 * gdb.cp/cold-clone.cc: New test. * gdb.cp/cold-clone.exp: New file.
2021-03-24gdb: remove current_top_target functionSimon Marchi1-3/+3
The current_top_target function is a hidden dependency on the current inferior. Since I'd like to slowly move towards reducing our dependency on the global current state, remove this function and make callers use current_inferior ()->top_target () There is no expected change in behavior, but this one step towards making those callers use the inferior from their context, rather than refer to the global current inferior. gdb/ChangeLog: * target.h (current_top_target): Remove, make callers use the current inferior instead. * target.c (current_top_target): Remove. Change-Id: Iccd457036f84466cdaa3865aa3f9339a24ea001d
2021-02-11gdb: add obj_section function to bound_minimal_symbolAndrew Burgess1-1/+1
Add a new obj_section function to bound_minimal_symbol, this just calls obj_section on the contained minimal_symbol passing in the contained objfile. This allows some minor code simplification in a few places. There should be no user visible changes after this commit. gdb/ChangeLog: * breakpoint.c (resolve_sal_pc): Make use of bound_minimal_symbol::obj_section. * maint.c (maintenance_translate_address): Likewise. * minsyms.c (minimal_symbol_upper_bound): Likewise. * minsyms.h (struct bound_minimal_symbol) <obj_section>: New member function. * printcmd.c (info_address_command): Make use of bound_minimal_symbol::obj_section.
2021-02-10gdb: delete SYMBOL_SECTION and MSYMBOL_SECTION macrosAndrew Burgess1-4/+5
Delete two more symbol/section related macros. This time it's SYMBOL_SECTION and MSYMBOL_SECTION. As with general_symbol_info::m_name it is not currently possible to make general_symbol_info::m_section private as general_symbol_info must remain a POD type. But other than failing to make the new m_section private, this change does what you'd expect, adds a get and set member function and updates all users to use the new functions instead of the previous wrapper macros. There should be no user visible change after this commit. gdb/ChangeLog: * coff-pe-read.c (add_pe_forwarded_sym): Make use of section_index and set_section_index member functions where appropriate. * coffread.c (coff_symtab_read): Likewise. (process_coff_symbol): Likewise. * ctfread.c (set_symbol_address): Likewise. * dwarf2/read.c (add_partial_symbol): Likewise. (var_decode_location): Likewise. * language.c: Likewise. * minsyms.c (minimal_symbol_reader::record_full): Likewise. (compact_minimal_symbols): Likewise. (minimal_symbol_upper_bound): Likewise. * objfiles.c (relocate_one_symbol): Likewise. * psympriv.h (partial_symbol::obj_section): Likewise. (partial_symbol::address): Likewise. * psymtab.c (partial_symtab::add_psymbol): Likewise. * stabsread.c (scan_file_globals): Likewise. * symmisc.c (dump_msymbols): Likewise. * symtab.c (general_symbol_info::obj_section): Likewise. (fixup_section): Likewise. (get_msymbol_address): Likewise. * symtab.h (general_symbol_info::section): Rename to... (general_symbol_info::m_section): ...this. (general_symbol_info::set_section_index): New member function. (general_symbol_info::section_index): Likewise. (SYMBOL_SECTION): Delete. (MSYMBOL_VALUE_ADDRESS): Make use of section_index and set_section_index member functions where appropriate. (MSYMBOL_SECTION): Delete. (symbol::symbol): Update to initialize 'm_section'. * xcoffread.c (read_xcoff_symtab): Make use of set_section_index. (process_xcoff_symbol): Likewise.
2021-02-10gdb: Delete SYMBOL_OBJ_SECTION and MSYMBOL_OBJ_SECTIONAndrew Burgess1-5/+5
Replace the two macros SYMBOL_OBJ_SECTION and MSYMBOL_OBJ_SECTION with a member function on general_symbol_info. There should be no user visible change after this commit. gdb/ChangeLog: * breakpoint.c (resolve_sal_pc): Replace SYMBOL_OBJ_SECTION and MSYMBOL_OBJ_SECTION. * findvar.c (language_defn::read_var_value): Likewise. * infcmd.c (jump_command): Likewise. * linespec.c (minsym_found): Likewise. * maint.c (maintenance_translate_address): Likewise. * minsyms.c (lookup_minimal_symbol_by_pc_section): Likewise. (minimal_symbol_upper_bound): Likewise. * parse.c (find_minsym_type_and_address): Likewise. (operator_check_standard): Likewise. * printcmd.c (info_address_command): Likewise. * symmisc.c (dump_msymbols): Likewise. (print_symbol): Likewise. * symtab.c (general_symbol_info::obj_section): Define new function. (fixup_symbol_section): Replace SYMBOL_OBJ_SECTION. (find_pc_sect_compunit_symtab): Likewise. (find_function_start_sal): Likewise. (skip_prologue_sal): Replace SYMBOL_OBJ_SECTION and MSYMBOL_OBJ_SECTION. * symtab.h (struct general_symbol_info) <obj_section>: Declare new function. (SYMBOL_OBJ_SECTION): Delete. (MSYMBOL_OBJ_SECTION): Delete.
2021-01-01Update copyright year range in all GDB filesJoel Brobecker1-1/+1
This commits the result of running gdb/copyright.py as per our Start of New Year procedure... gdb/ChangeLog Update copyright year range in copyright header of all GDB files.
2020-11-02gdb, gdbserver, gdbsupport: fix leading space vs tabs issuesSimon Marchi1-18/+18
Many spots incorrectly use only spaces for indentation (for example, there are a lot of spots in ada-lang.c). I've always found it awkward when I needed to edit one of these spots: do I keep the original wrong indentation, or do I fix it? What if the lines around it are also wrong, do I fix them too? I probably don't want to fix them in the same patch, to avoid adding noise to my patch. So I propose to fix as much as possible once and for all (hopefully). One typical counter argument for this is that it makes code archeology more difficult, because git-blame will show this commit as the last change for these lines. My counter counter argument is: when git-blaming, you often need to do "blame the file at the parent commit" anyway, to go past some other refactor that touched the line you are interested in, but is not the change you are looking for. So you already need a somewhat efficient way to do this. Using some interactive tool, rather than plain git-blame, makes this trivial. For example, I use "tig blame <file>", where going back past the commit that changed the currently selected line is one keystroke. It looks like Magit in Emacs does it too (though I've never used it). Web viewers of Github and Gitlab do it too. My point is that it won't really make archeology more difficult. The other typical counter argument is that it will cause conflicts with existing patches. That's true... but it's a one time cost, and those are not conflicts that are difficult to resolve. I have also tried "git rebase --ignore-whitespace", it seems to work well. Although that will re-introduce the faulty indentation, so one needs to take care of fixing the indentation in the patch after that (which is easy). gdb/ChangeLog: * aarch64-linux-tdep.c: Fix indentation. * aarch64-ravenscar-thread.c: Fix indentation. * aarch64-tdep.c: Fix indentation. * aarch64-tdep.h: Fix indentation. * ada-lang.c: Fix indentation. * ada-lang.h: Fix indentation. * ada-tasks.c: Fix indentation. * ada-typeprint.c: Fix indentation. * ada-valprint.c: Fix indentation. * ada-varobj.c: Fix indentation. * addrmap.c: Fix indentation. * addrmap.h: Fix indentation. * agent.c: Fix indentation. * aix-thread.c: Fix indentation. * alpha-bsd-nat.c: Fix indentation. * alpha-linux-tdep.c: Fix indentation. * alpha-mdebug-tdep.c: Fix indentation. * alpha-nbsd-tdep.c: Fix indentation. * alpha-obsd-tdep.c: Fix indentation. * alpha-tdep.c: Fix indentation. * amd64-bsd-nat.c: Fix indentation. * amd64-darwin-tdep.c: Fix indentation. * amd64-linux-nat.c: Fix indentation. * amd64-linux-tdep.c: Fix indentation. * amd64-nat.c: Fix indentation. * amd64-obsd-tdep.c: Fix indentation. * amd64-tdep.c: Fix indentation. * amd64-windows-tdep.c: Fix indentation. * annotate.c: Fix indentation. * arc-tdep.c: Fix indentation. * arch-utils.c: Fix indentation. * arch/arm-get-next-pcs.c: Fix indentation. * arch/arm.c: Fix indentation. * arm-linux-nat.c: Fix indentation. * arm-linux-tdep.c: Fix indentation. * arm-nbsd-tdep.c: Fix indentation. * arm-pikeos-tdep.c: Fix indentation. * arm-tdep.c: Fix indentation. * arm-tdep.h: Fix indentation. * arm-wince-tdep.c: Fix indentation. * auto-load.c: Fix indentation. * auxv.c: Fix indentation. * avr-tdep.c: Fix indentation. * ax-gdb.c: Fix indentation. * ax-general.c: Fix indentation. * bfin-linux-tdep.c: Fix indentation. * block.c: Fix indentation. * block.h: Fix indentation. * blockframe.c: Fix indentation. * bpf-tdep.c: Fix indentation. * break-catch-sig.c: Fix indentation. * break-catch-syscall.c: Fix indentation. * break-catch-throw.c: Fix indentation. * breakpoint.c: Fix indentation. * breakpoint.h: Fix indentation. * bsd-uthread.c: Fix indentation. * btrace.c: Fix indentation. * build-id.c: Fix indentation. * buildsym-legacy.h: Fix indentation. * buildsym.c: Fix indentation. * c-typeprint.c: Fix indentation. * c-valprint.c: Fix indentation. * c-varobj.c: Fix indentation. * charset.c: Fix indentation. * cli/cli-cmds.c: Fix indentation. * cli/cli-decode.c: Fix indentation. * cli/cli-decode.h: Fix indentation. * cli/cli-script.c: Fix indentation. * cli/cli-setshow.c: Fix indentation. * coff-pe-read.c: Fix indentation. * coffread.c: Fix indentation. * compile/compile-cplus-types.c: Fix indentation. * compile/compile-object-load.c: Fix indentation. * compile/compile-object-run.c: Fix indentation. * completer.c: Fix indentation. * corefile.c: Fix indentation. * corelow.c: Fix indentation. * cp-abi.h: Fix indentation. * cp-namespace.c: Fix indentation. * cp-support.c: Fix indentation. * cp-valprint.c: Fix indentation. * cris-linux-tdep.c: Fix indentation. * cris-tdep.c: Fix indentation. * darwin-nat-info.c: Fix indentation. * darwin-nat.c: Fix indentation. * darwin-nat.h: Fix indentation. * dbxread.c: Fix indentation. * dcache.c: Fix indentation. * disasm.c: Fix indentation. * dtrace-probe.c: Fix indentation. * dwarf2/abbrev.c: Fix indentation. * dwarf2/attribute.c: Fix indentation. * dwarf2/expr.c: Fix indentation. * dwarf2/frame.c: Fix indentation. * dwarf2/index-cache.c: Fix indentation. * dwarf2/index-write.c: Fix indentation. * dwarf2/line-header.c: Fix indentation. * dwarf2/loc.c: Fix indentation. * dwarf2/macro.c: Fix indentation. * dwarf2/read.c: Fix indentation. * dwarf2/read.h: Fix indentation. * elfread.c: Fix indentation. * eval.c: Fix indentation. * event-top.c: Fix indentation. * exec.c: Fix indentation. * exec.h: Fix indentation. * expprint.c: Fix indentation. * f-lang.c: Fix indentation. * f-typeprint.c: Fix indentation. * f-valprint.c: Fix indentation. * fbsd-nat.c: Fix indentation. * fbsd-tdep.c: Fix indentation. * findvar.c: Fix indentation. * fork-child.c: Fix indentation. * frame-unwind.c: Fix indentation. * frame-unwind.h: Fix indentation. * frame.c: Fix indentation. * frv-linux-tdep.c: Fix indentation. * frv-tdep.c: Fix indentation. * frv-tdep.h: Fix indentation. * ft32-tdep.c: Fix indentation. * gcore.c: Fix indentation. * gdb_bfd.c: Fix indentation. * gdbarch.sh: Fix indentation. * gdbarch.c: Re-generate * gdbarch.h: Re-generate. * gdbcore.h: Fix indentation. * gdbthread.h: Fix indentation. * gdbtypes.c: Fix indentation. * gdbtypes.h: Fix indentation. * glibc-tdep.c: Fix indentation. * gnu-nat.c: Fix indentation. * gnu-nat.h: Fix indentation. * gnu-v2-abi.c: Fix indentation. * gnu-v3-abi.c: Fix indentation. * go32-nat.c: Fix indentation. * guile/guile-internal.h: Fix indentation. * guile/scm-cmd.c: Fix indentation. * guile/scm-frame.c: Fix indentation. * guile/scm-iterator.c: Fix indentation. * guile/scm-math.c: Fix indentation. * guile/scm-ports.c: Fix indentation. * guile/scm-pretty-print.c: Fix indentation. * guile/scm-value.c: Fix indentation. * h8300-tdep.c: Fix indentation. * hppa-linux-nat.c: Fix indentation. * hppa-linux-tdep.c: Fix indentation. * hppa-nbsd-nat.c: Fix indentation. * hppa-nbsd-tdep.c: Fix indentation. * hppa-obsd-nat.c: Fix indentation. * hppa-tdep.c: Fix indentation. * hppa-tdep.h: Fix indentation. * i386-bsd-nat.c: Fix indentation. * i386-darwin-nat.c: Fix indentation. * i386-darwin-tdep.c: Fix indentation. * i386-dicos-tdep.c: Fix indentation. * i386-gnu-nat.c: Fix indentation. * i386-linux-nat.c: Fix indentation. * i386-linux-tdep.c: Fix indentation. * i386-nto-tdep.c: Fix indentation. * i386-obsd-tdep.c: Fix indentation. * i386-sol2-nat.c: Fix indentation. * i386-tdep.c: Fix indentation. * i386-tdep.h: Fix indentation. * i386-windows-tdep.c: Fix indentation. * i387-tdep.c: Fix indentation. * i387-tdep.h: Fix indentation. * ia64-libunwind-tdep.c: Fix indentation. * ia64-libunwind-tdep.h: Fix indentation. * ia64-linux-nat.c: Fix indentation. * ia64-linux-tdep.c: Fix indentation. * ia64-tdep.c: Fix indentation. * ia64-tdep.h: Fix indentation. * ia64-vms-tdep.c: Fix indentation. * infcall.c: Fix indentation. * infcmd.c: Fix indentation. * inferior.c: Fix indentation. * infrun.c: Fix indentation. * iq2000-tdep.c: Fix indentation. * language.c: Fix indentation. * linespec.c: Fix indentation. * linux-fork.c: Fix indentation. * linux-nat.c: Fix indentation. * linux-tdep.c: Fix indentation. * linux-thread-db.c: Fix indentation. * lm32-tdep.c: Fix indentation. * m2-lang.c: Fix indentation. * m2-typeprint.c: Fix indentation. * m2-valprint.c: Fix indentation. * m32c-tdep.c: Fix indentation. * m32r-linux-tdep.c: Fix indentation. * m32r-tdep.c: Fix indentation. * m68hc11-tdep.c: Fix indentation. * m68k-bsd-nat.c: Fix indentation. * m68k-linux-nat.c: Fix indentation. * m68k-linux-tdep.c: Fix indentation. * m68k-tdep.c: Fix indentation. * machoread.c: Fix indentation. * macrocmd.c: Fix indentation. * macroexp.c: Fix indentation. * macroscope.c: Fix indentation. * macrotab.c: Fix indentation. * macrotab.h: Fix indentation. * main.c: Fix indentation. * mdebugread.c: Fix indentation. * mep-tdep.c: Fix indentation. * mi/mi-cmd-catch.c: Fix indentation. * mi/mi-cmd-disas.c: Fix indentation. * mi/mi-cmd-env.c: Fix indentation. * mi/mi-cmd-stack.c: Fix indentation. * mi/mi-cmd-var.c: Fix indentation. * mi/mi-cmds.c: Fix indentation. * mi/mi-main.c: Fix indentation. * mi/mi-parse.c: Fix indentation. * microblaze-tdep.c: Fix indentation. * minidebug.c: Fix indentation. * minsyms.c: Fix indentation. * mips-linux-nat.c: Fix indentation. * mips-linux-tdep.c: Fix indentation. * mips-nbsd-tdep.c: Fix indentation. * mips-tdep.c: Fix indentation. * mn10300-linux-tdep.c: Fix indentation. * mn10300-tdep.c: Fix indentation. * moxie-tdep.c: Fix indentation. * msp430-tdep.c: Fix indentation. * namespace.h: Fix indentation. * nat/fork-inferior.c: Fix indentation. * nat/gdb_ptrace.h: Fix indentation. * nat/linux-namespaces.c: Fix indentation. * nat/linux-osdata.c: Fix indentation. * nat/netbsd-nat.c: Fix indentation. * nat/x86-dregs.c: Fix indentation. * nbsd-nat.c: Fix indentation. * nbsd-tdep.c: Fix indentation. * nios2-linux-tdep.c: Fix indentation. * nios2-tdep.c: Fix indentation. * nto-procfs.c: Fix indentation. * nto-tdep.c: Fix indentation. * objfiles.c: Fix indentation. * objfiles.h: Fix indentation. * opencl-lang.c: Fix indentation. * or1k-tdep.c: Fix indentation. * osabi.c: Fix indentation. * osabi.h: Fix indentation. * osdata.c: Fix indentation. * p-lang.c: Fix indentation. * p-typeprint.c: Fix indentation. * p-valprint.c: Fix indentation. * parse.c: Fix indentation. * ppc-linux-nat.c: Fix indentation. * ppc-linux-tdep.c: Fix indentation. * ppc-nbsd-nat.c: Fix indentation. * ppc-nbsd-tdep.c: Fix indentation. * ppc-obsd-nat.c: Fix indentation. * ppc-ravenscar-thread.c: Fix indentation. * ppc-sysv-tdep.c: Fix indentation. * ppc64-tdep.c: Fix indentation. * printcmd.c: Fix indentation. * proc-api.c: Fix indentation. * producer.c: Fix indentation. * producer.h: Fix indentation. * prologue-value.c: Fix indentation. * prologue-value.h: Fix indentation. * psymtab.c: Fix indentation. * python/py-arch.c: Fix indentation. * python/py-bpevent.c: Fix indentation. * python/py-event.c: Fix indentation. * python/py-event.h: Fix indentation. * python/py-finishbreakpoint.c: Fix indentation. * python/py-frame.c: Fix indentation. * python/py-framefilter.c: Fix indentation. * python/py-inferior.c: Fix indentation. * python/py-infthread.c: Fix indentation. * python/py-objfile.c: Fix indentation. * python/py-prettyprint.c: Fix indentation. * python/py-registers.c: Fix indentation. * python/py-signalevent.c: Fix indentation. * python/py-stopevent.c: Fix indentation. * python/py-stopevent.h: Fix indentation. * python/py-threadevent.c: Fix indentation. * python/py-tui.c: Fix indentation. * python/py-unwind.c: Fix indentation. * python/py-value.c: Fix indentation. * python/py-xmethods.c: Fix indentation. * python/python-internal.h: Fix indentation. * python/python.c: Fix indentation. * ravenscar-thread.c: Fix indentation. * record-btrace.c: Fix indentation. * record-full.c: Fix indentation. * record.c: Fix indentation. * reggroups.c: Fix indentation. * regset.h: Fix indentation. * remote-fileio.c: Fix indentation. * remote.c: Fix indentation. * reverse.c: Fix indentation. * riscv-linux-tdep.c: Fix indentation. * riscv-ravenscar-thread.c: Fix indentation. * riscv-tdep.c: Fix indentation. * rl78-tdep.c: Fix indentation. * rs6000-aix-tdep.c: Fix indentation. * rs6000-lynx178-tdep.c: Fix indentation. * rs6000-nat.c: Fix indentation. * rs6000-tdep.c: Fix indentation. * rust-lang.c: Fix indentation. * rx-tdep.c: Fix indentation. * s12z-tdep.c: Fix indentation. * s390-linux-tdep.c: Fix indentation. * score-tdep.c: Fix indentation. * ser-base.c: Fix indentation. * ser-mingw.c: Fix indentation. * ser-uds.c: Fix indentation. * ser-unix.c: Fix indentation. * serial.c: Fix indentation. * sh-linux-tdep.c: Fix indentation. * sh-nbsd-tdep.c: Fix indentation. * sh-tdep.c: Fix indentation. * skip.c: Fix indentation. * sol-thread.c: Fix indentation. * solib-aix.c: Fix indentation. * solib-darwin.c: Fix indentation. * solib-frv.c: Fix indentation. * solib-svr4.c: Fix indentation. * solib.c: Fix indentation. * source.c: Fix indentation. * sparc-linux-tdep.c: Fix indentation. * sparc-nbsd-tdep.c: Fix indentation. * sparc-obsd-tdep.c: Fix indentation. * sparc-ravenscar-thread.c: Fix indentation. * sparc-tdep.c: Fix indentation. * sparc64-linux-tdep.c: Fix indentation. * sparc64-nbsd-tdep.c: Fix indentation. * sparc64-obsd-tdep.c: Fix indentation. * sparc64-tdep.c: Fix indentation. * stabsread.c: Fix indentation. * stack.c: Fix indentation. * stap-probe.c: Fix indentation. * stubs/ia64vms-stub.c: Fix indentation. * stubs/m32r-stub.c: Fix indentation. * stubs/m68k-stub.c: Fix indentation. * stubs/sh-stub.c: Fix indentation. * stubs/sparc-stub.c: Fix indentation. * symfile-mem.c: Fix indentation. * symfile.c: Fix indentation. * symfile.h: Fix indentation. * symmisc.c: Fix indentation. * symtab.c: Fix indentation. * symtab.h: Fix indentation. * target-float.c: Fix indentation. * target.c: Fix indentation. * target.h: Fix indentation. * tic6x-tdep.c: Fix indentation. * tilegx-linux-tdep.c: Fix indentation. * tilegx-tdep.c: Fix indentation. * top.c: Fix indentation. * tracefile-tfile.c: Fix indentation. * tracepoint.c: Fix indentation. * tui/tui-disasm.c: Fix indentation. * tui/tui-io.c: Fix indentation. * tui/tui-regs.c: Fix indentation. * tui/tui-stack.c: Fix indentation. * tui/tui-win.c: Fix indentation. * tui/tui-winsource.c: Fix indentation. * tui/tui.c: Fix indentation. * typeprint.c: Fix indentation. * ui-out.h: Fix indentation. * unittests/copy_bitwise-selftests.c: Fix indentation. * unittests/memory-map-selftests.c: Fix indentation. * utils.c: Fix indentation. * v850-tdep.c: Fix indentation. * valarith.c: Fix indentation. * valops.c: Fix indentation. * valprint.c: Fix indentation. * valprint.h: Fix indentation. * value.c: Fix indentation. * value.h: Fix indentation. * varobj.c: Fix indentation. * vax-tdep.c: Fix indentation. * windows-nat.c: Fix indentation. * windows-tdep.c: Fix indentation. * xcoffread.c: Fix indentation. * xml-syscall.c: Fix indentation. * xml-tdesc.c: Fix indentation. * xstormy16-tdep.c: Fix indentation. * xtensa-config.c: Fix indentation. * xtensa-linux-nat.c: Fix indentation. * xtensa-linux-tdep.c: Fix indentation. * xtensa-tdep.c: Fix indentation. gdbserver/ChangeLog: * ax.cc: Fix indentation. * dll.cc: Fix indentation. * inferiors.h: Fix indentation. * linux-low.cc: Fix indentation. * linux-nios2-low.cc: Fix indentation. * linux-ppc-ipa.cc: Fix indentation. * linux-ppc-low.cc: Fix indentation. * linux-x86-low.cc: Fix indentation. * linux-xtensa-low.cc: Fix indentation. * regcache.cc: Fix indentation. * server.cc: Fix indentation. * tracepoint.cc: Fix indentation. gdbsupport/ChangeLog: * common-exceptions.h: Fix indentation. * event-loop.cc: Fix indentation. * fileio.cc: Fix indentation. * filestuff.cc: Fix indentation. * gdb-dlfcn.cc: Fix indentation. * gdb_string_view.h: Fix indentation. * job-control.cc: Fix indentation. * signals.cc: Fix indentation. Change-Id: I4bad7ae6be0fbe14168b8ebafb98ffe14964a695
2020-10-29Remove symfile_objfile macroTom Tromey1-2/+6
This removes the symfile_objfile macro, in favor of just spelling out the member access. gdb/ChangeLog 2020-10-29 Tom Tromey <tom@tromey.com> * windows-tdep.c (windows_solib_create_inferior_hook): Update. * target.c (info_target_command): Update. * symfile.c (syms_from_objfile_1, finish_new_objfile) (symbol_file_clear, reread_symbols): Update. * symfile-mem.c (add_symbol_file_from_memory_command): Update. * stabsread.c (scan_file_globals): Update. * solib.c (update_solib_list): Update. * solib-svr4.c (elf_locate_base, open_symbol_file_object) (svr4_fetch_objfile_link_map, enable_break) (svr4_relocate_main_executable) (svr4_iterate_over_objfiles_in_search_order): Update. * solib-frv.c (lm_base, enable_break) (frv_relocate_main_executable): Update. (main_got, frv_fdpic_find_canonical_descriptor): Update. (frv_fetch_objfile_link_map): Update. * solib-dsbt.c (lm_base, dsbt_relocate_main_executable): Update. * solib-darwin.c (darwin_solib_create_inferior_hook): Update. * solib-aix.c (solib_aix_solib_create_inferior_hook): Update. * remote.c (remote_target::get_offsets): Update. (remote_target::start_remote) (extended_remote_target::post_attach): Update. * objfiles.c (entry_point_address_query): Update. * nto-procfs.c (nto_procfs_target::create_inferior): Update. * minsyms.c (get_symbol_leading_char): Update. * frame.c (inside_main_func): Update. * progspace.h (symfile_objfile): Remove macro.
2020-06-17gdb: Convert language la_get_symbol_name_matcher field to a methodAndrew Burgess1-3/+3
This commit changes the language_data::la_get_symbol_name_matcher function pointer member variable into a member function of language_defn. There should be no user visible changes after this commit. Before this commit access to the la_get_symbol_name_matcher function pointer was through the get_symbol_name_matcher function, which looked something like this (is pseudo-code): <return-type> get_symbol_name_matcher (language_defn *lang, <other args>) { if (current_language == ada) current_language->la_get_symbol_name_matcher (<other args>); else lang->la_get_symbol_name_matcher (<other args>); } In this commit I moved the get_symbol_name_matcher as a non-virtual function in the language_defn base class, I then add a new virtual method that is only used from within get_symbol_name_matcher, this can then be overridden by specific languages as needed. So we now have: class language_defn { <return-type> get_symbol_name_matcher (<args>) { if (current_language == ada) return current_language->get_symbol_name_matcher_inner (<args>); else return this->get_symbol_name_matcher_inner (<args>); } virtual <return-type> get_symbol_name_matcher_inner (<args>) { .... } } gdb/ChangeLog: * ada-lang.c (ada_get_symbol_name_matcher): Update header comment. (ada_language_data): Delete la_get_symbol_name_matcher initializer. (language_defn::get_symbol_name_matcher_inner): New member function. * c-lang.c (c_language_data): Delete la_get_symbol_name_matcher initializer. (cplus_language_data): Likewise. (cplus_language::get_symbol_name_matcher_inner): New member function. (asm_language_data): Delete la_get_symbol_name_matcher initializer. (minimal_language_data): Likewise. * cp-support.h (cp_get_symbol_name_matcher): Update header comment. * d-lang.c (d_language_data): Delete la_get_symbol_name_matcher initializer. * dictionary.c (iter_match_first_hashed): Update call to get_symbol_name_matcher. (iter_match_next_hashed): Likewise. (iter_match_next_linear): Likewise. * dwarf2/read.c (dw2_expand_symtabs_matching_symbol): Likewise. * f-lang.c (f_language_data): Delete la_get_symbol_name_matcher initializer. (f_language::get_symbol_name_matcher_inner): New member function. * go-lang.c (go_language_data): Delete la_get_symbol_name_matcher initializer. * language.c (default_symbol_name_matcher): Update header comment, make static. (language_defn::get_symbol_name_matcher): New definition. (language_defn::get_symbol_name_matcher_inner): Likewise. (get_symbol_name_matcher): Delete. (unknown_language_data): Delete la_get_symbol_name_matcher initializer. (auto_language_data): Likewise. * language.h (language_data): Delete la_get_symbol_name_matcher field. (language_defn::get_symbol_name_matcher): New member function. (language_defn::get_symbol_name_matcher_inner): Likewise. (default_symbol_name_matcher): Delete declaration. * linespec.c (find_methods): Update call to get_symbol_name_matcher. * m2-lang.c (m2_language_data): Delete la_get_symbol_name_matcher initializer. * minsyms.c (lookup_minimal_symbol): Update call to get_symbol_name_matcher. (iterate_over_minimal_symbols): Likewise. * objc-lang.c (objc_language_data): Delete la_get_symbol_name_matcher initializer. * opencl-lang.c (opencl_language_data): Likewise. * p-lang.c (pascal_language_data): Likewise. * psymtab.c (psymbol_name_matches): Update call to get_symbol_name_matcher. * rust-lang.c (rust_language_data): Delete la_get_symbol_name_matcher initializer. * symtab.c (symbol_matches_search_name): Update call to get_symbol_name_matcher. (compare_symbol_name): Likewise.
2020-04-24Convert symbol_set_demangled_name to a methodTom Tromey1-3/+2
This changes symbol_set_demangled_name to be a method on general_symbol_info, and updates the users. gdb/ChangeLog 2020-04-24 Tom Tromey <tom@tromey.com> * symtab.h (struct general_symbol_info) <set_demangled_name>: New method. (symbol_set_demangled_name): Don't declare. * symtab.c (general_symbol_info::set_demangled_name): Rename from symbol_set_demangled_name. (general_symbol_info::set_language) (general_symbol_info::compute_and_set_names): Update. * minsyms.c (minimal_symbol_reader::install): Update. * dwarf2/read.c (new_symbol): Update.
2020-04-18Change get_objfile_arch to a method on objfileTom Tromey1-1/+1
This changes get_objfile_arch to be a new inline method, objfile::arch. To my surprise, this function came up while profiling DWARF psymbol reading. Making this change improved performance from 1.986 seconds to 1.869 seconds. Both measurements were done by taking the mean of 10 runs on a fixed copy of the gdb executable. gdb/ChangeLog 2020-04-18 Tom Tromey <tom@tromey.com> * xcoffread.c (enter_line_range, scan_xcoff_symtab): Update. * value.c (value_fn_field): Update. * valops.c (find_function_in_inferior) (value_allocate_space_in_inferior): Update. * tui/tui-winsource.c (tui_update_source_windows_with_line): Update. * tui/tui-source.c (tui_source_window::set_contents): Update. * symtab.c (lookup_global_or_static_symbol) (find_function_start_sal_1, skip_prologue_sal) (print_msymbol_info, find_gnu_ifunc, symbol_arch): Update. * symmisc.c (dump_msymbols, dump_symtab_1) (maintenance_print_one_line_table): Update. * symfile.c (init_entry_point_info, section_is_mapped) (list_overlays_command, simple_read_overlay_table) (simple_overlay_update_1): Update. * stap-probe.c (handle_stap_probe): Update. * stabsread.c (dbx_init_float_type, define_symbol) (read_one_struct_field, read_enum_type, read_range_type): Update. * source.c (info_line_command): Update. * python/python.c (gdbpy_source_objfile_script) (gdbpy_execute_objfile_script): Update. * python/py-type.c (save_objfile_types): Update. * python/py-objfile.c (py_free_objfile): Update. * python/py-inferior.c (python_new_objfile): Update. * psymtab.c (psym_find_pc_sect_compunit_symtab, dump_psymtab) (dump_psymtab_addrmap_1, maintenance_info_psymtabs) (maintenance_check_psymtabs): Update. * printcmd.c (info_address_command): Update. * objfiles.h (struct objfile) <arch>: New method, from get_objfile_arch. (get_objfile_arch): Don't declare. * objfiles.c (get_objfile_arch): Remove. (filter_overlapping_sections): Update. * minsyms.c (msymbol_is_function): Update. * mi/mi-symbol-cmds.c (mi_cmd_symbol_list_lines) (output_nondebug_symbol): Update. * mdebugread.c (parse_symbol, basic_type, parse_partial_symbols) (mdebug_expand_psymtab): Update. * machoread.c (macho_add_oso_symfile): Update. * linux-tdep.c (linux_infcall_mmap, linux_infcall_munmap): Update. * linux-fork.c (checkpoint_command): Update. * linespec.c (convert_linespec_to_sals): Update. * jit.c (finalize_symtab): Update. * infrun.c (insert_exception_resume_from_probe): Update. * ia64-tdep.c (ia64_find_unwind_table): Update. * hppa-tdep.c (internalize_unwinds): Update. * gdbtypes.c (get_type_arch, init_float_type, objfile_type): Update. * gcore.c (call_target_sbrk): Update. * elfread.c (record_minimal_symbol, elf_symtab_read) (elf_rel_plt_read, elf_gnu_ifunc_record_cache) (elf_gnu_ifunc_resolve_by_got): Update. * dwarf2/read.c (create_addrmap_from_index) (create_addrmap_from_aranges, dw2_find_pc_sect_compunit_symtab) (read_debug_names_from_section) (process_psymtab_comp_unit_reader, add_partial_symbol) (add_partial_subprogram, process_full_comp_unit) (read_file_scope, read_func_scope, read_lexical_block_scope) (read_call_site_scope, dwarf2_ranges_read) (dwarf2_record_block_ranges, dwarf2_add_field) (mark_common_block_symbol_computed, read_tag_pointer_type) (read_tag_string_type, dwarf2_init_float_type) (dwarf2_init_complex_target_type, read_base_type) (partial_die_info::read, partial_die_info::read) (read_attribute_value, dwarf_decode_lines_1, new_symbol) (dwarf2_fetch_die_loc_sect_off): Update. * dwarf2/loc.c (dwarf2_find_location_expression) (class dwarf_evaluate_loc_desc, rw_pieced_value) (dwarf2_evaluate_loc_desc_full, dwarf2_locexpr_baton_eval) (dwarf2_loc_desc_get_symbol_read_needs) (locexpr_describe_location_piece, locexpr_describe_location_1) (loclist_describe_location): Update. * dwarf2/index-write.c (write_debug_names): Update. * dwarf2/frame.c (dwarf2_build_frame_info): Update. * dtrace-probe.c (dtrace_process_dof): Update. * dbxread.c (read_dbx_symtab, dbx_end_psymtab) (process_one_symbol): Update. * ctfread.c (ctf_init_float_type, read_base_type): Update. * coffread.c (coff_symtab_read, enter_linenos, decode_base_type) (coff_read_enum_type): Update. * cli/cli-cmds.c (edit_command, list_command): Update. * buildsym.c (buildsym_compunit::finish_block_internal): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, get_sal_arch): Update. * block.c (block_gdbarch): Update. * annotate.c (annotate_source_line): Update.
2020-04-01Avoid copying in lookup_name_infoTom Tromey1-1/+1
lookup_name_info always copies the name that is passed in. However, normally a copy is not needed. This patch changes this class to avoid copying. This required changing the "name" method to return something else; I chose a gdb::string_view, to avoid excessive calls to strlen in the code using the lookup_name_info. However, as this class does not allow an arbitrary string_view, I've also added a c_str method that guarantees a \0-terminated result -- a pedantic difference but one that respects the string_view contract, IMO. gdb/ChangeLog 2020-04-01 Tom Tromey <tromey@adacore.com> * symtab.h (class lookup_name_info) <lookup_name_info>: Change "name" parameter to rvalue reference. Initialize m_name_holder. <lookup_name_info>: New overloads. <name>: Return gdb::string_view. <c_str>: New method. <make_ignore_params>: Update. <search_name_hash>: Update. <language_lookup_name>: Return const char *. <m_name>: Change type. * symtab.c (demangle_for_lookup_info::demangle_for_lookup_info) (demangle_for_lookup_info::demangle_for_lookup_info): Update. (lookup_name_info::match_any): Update. * psymtab.c (match_partial_symbol, lookup_partial_symbol): Update. * minsyms.c (linkage_name_str): Update. * language.c (default_symbol_name_matcher): Update. * dwarf2/read.c (mapped_index_base::find_name_components_bounds): Update. * ada-lang.c (ada_fold_name): Change parameter to string_view. (ada_lookup_name_info::ada_lookup_name_info): Update. (literal_symbol_name_matcher): Update.
2020-01-24gdb/tui: asm window handles invalid memory and scrolls betterAndrew Burgess1-13/+28
This started as a patch to enable the asm window to handle attempts to disassemble invalid memory, but it ended up expanding into a significant rewrite of how the asm window handles scrolling. These two things ended up being tied together as it was impossible to correctly test scrolling into invalid memory when the asm window would randomly behave weirdly while scrolling. Things that should work nicely now; scrolling to the bottom or top of the listing with PageUp, PageDown, Up Arrow, Down Arrow and we should be able to scroll past small areas of memory that don't have symbols associated with them. It should also be possible to scroll to the start of a section even if there's no symbol at the start of the section. Adding tests for this scrolling was a little bit of a problem. First I would have liked to add tests for PageUp / PageDown, but the tuiterm library we use doesn't support these commands right now due to only emulating a basic ascii terminal. Changing this to emulate a more complex terminal would require adding support for more escape sequence control codes, so I've not tried to tackle that in this patch. Next, I would have liked to test scrolling to the start or end of the assembler listing and then trying to scroll even more, however, this is a problem because in a well behaving GDB a scroll at the start/end has no effect. What we need to do is: - Move to start of assembler listing, - Send scroll up command, - Wait for all curses output, - Ensure the assembler listing is unchanged, we're still at the start of the listing. The problem is that there is no curses output, so how long do we wait at step 3? The same problem exists for scrolling to the bottom of the assembler listing. However, when scrolling down you can at least see the end coming, so I added a test for this case, however, this feels like an area of code that is massively under tested. gdb/ChangeLog: PR tui/9765 * minsyms.c (lookup_minimal_symbol_by_pc_section): Update header comment, add extra parameter, and update to store previous symbol when appropriate. * minsyms.h (lookup_minimal_symbol_by_pc_section): Update comment, add extra parameter. * tui/tui-disasm.c (tui_disassemble): Update header comment, remove unneeded parameter, add try/catch around gdb_print_insn, rewrite to add items to asm_lines vector. (tui_find_backward_disassembly_start_address): New function. (tui_find_disassembly_address): Updated throughout. (tui_disasm_window::set_contents): Update for changes to tui_disassemble. (tui_disasm_window::do_scroll_vertical): No need to adjust the number of lines to scroll. gdb/testsuite/ChangeLog: PR tui/9765 * gdb.tui/tui-layout-asm.exp: Add scrolling test for asm window. Change-Id: I323987c8fd316962c937e73c17d952ccd3cfa66c
2020-01-01Update copyright year range in all GDB files.Joel Brobecker1-1/+1
gdb/ChangeLog: Update copyright year range in all GDB files.
2019-12-27Make symbol_set_names a member functionChristian Biesinger1-12/+12
This also renames it to make it clearer that this is not a cheap function (to compute_and_set_names). Also renames name to m_name to make the implementation of the renamed function more readable. Most of the places that access sym->m_name directly were also changed to call linkage_name () instead, to make it clearer which name they are accessing. gdb/ChangeLog: 2019-12-26 Christian Biesinger <cbiesinger@google.com> * ada-lang.c (ada_decode_symbol): Update. * buildsym.c (add_symbol_to_list): Update. * coffread.c (process_coff_symbol): Update. * ctfread.c (ctf_add_enum_member_cb): Update. (new_symbol): Update. (ctf_add_var_cb): Update. * dwarf2read.c (fixup_go_packaging): Update. (dwarf2_compute_name): Update. (new_symbol): Update. * jit.c (finalize_symtab): Update. * language.c (language_alloc_type_symbol): Update. * mdebugread.c (new_symbol): Update. * minsyms.c (minimal_symbol_reader::record_full): Update. (minimal_symbol_reader::install): Update. * psymtab.c (print_partial_symbols): Update. (psymbol_hash): Update. (psymbol_compare): Update. (add_psymbol_to_bcache): Update. (maintenance_check_psymtabs): Update. * stabsread.c (define_symbol): Update. * symtab.c (symbol_set_names): Rename to... (general_symbol_info::compute_and_set_names): ...this. (general_symbol_info::natural_name): Update. (general_symbol_info::search_name): Update. (fixup_section): Update. * symtab.h (struct general_symbol_info) <name>: Rename to... <m_name>: ...this. <compute_and_set_names>: Rename from... (symbol_set_names): ...this. (SYMBOL_SET_NAMES): Remove. (struct symbol) <ctor>: Update. Change-Id: I8da1f10cab4e0b89f19d5750fa4e6e2ac8d2b24f
2019-12-16Use a member function to set a symbol's languageChristian Biesinger1-2/+2
This removes symbol_set_language and SYMBOL_SET_LANGUAGE in favor of a new function general_symbol_info::set_language. symbol and minimal_symbol already inherit from that struct so this works naturally. gdb/ChangeLog: 2019-12-15 Christian Biesinger <cbiesinger@google.com> * ada-exp.y (write_ambiguous_var): Update. * coffread.c (process_coff_symbol): Update. * ctfread.c (ctf_add_enum_member_cb): Update. (new_symbol): Update. * dwarf2read.c (fixup_go_packaging): Update. (new_symbol): Update. * language.c (language_alloc_type_symbol): Update. * mdebugread.c (new_symbol): Update. * minsyms.c (minimal_symbol_reader::record_full): Update. * psymtab.c (add_psymbol_to_bcache): Update. * stabsread.c (define_symbol): Update. (read_enum_type): Update. * symtab.c (symbol_set_language): Make this a member function... (general_symbol_info::set_language): ... here. * symtab.h (struct general_symbol_info) <set_language>: New function. (SYMBOL_SET_LANGUAGE): Remove. (symbol_set_language): Remove. Change-Id: Ideafb6c384004b9adef793a1192735c501da41d5
2019-12-16Use an accessor function for general_symbol_info::languageChristian Biesinger1-3/+2
Also renames the member variable to m_language to make code easier to read when more functions become member functions. I was originally hoping to eventually make m_language private (after a few more patches), but unfortunately then it no longer counts as a POD type, which means gdbsupport/poison.h won't let us use memset to initialize this type, which psymtabs rely on to clear padding bytes so that bcache can work properly. gdb/ChangeLog: 2019-12-15 Christian Biesinger <cbiesinger@google.com> * ada-lang.c (ada_add_block_symbols): Update. (ada_collect_symbol_completion_matches): Update. * ax-gdb.c (gen_expr): Update. * block.c (block_lookup_symbol): Update. (block_lookup_symbol_primary): Update. (block_find_symbol): Update. * cp-namespace.c (cp_lookup_symbol_imports_or_template): Update. * dbxread.c (process_one_symbol): Update. * dictionary.c (insert_symbol_hashed): Update. (collate_pending_symbols_by_language): Update. (mdict_add_symbol): Update. * dwarf-index-write.c (write_psymbols): Update. * dwarf2read.c (fixup_go_packaging): Update. * findvar.c (read_var_value): Update. * ft32-tdep.c (ft32_skip_prologue): Update. * go-lang.c (go_symbol_package_name): Update. * language.h (scoped_switch_to_sym_language_if_auto:: scoped_switch_to_sym_language_if_auto): Update. * linespec.c (find_method): Update. (find_label_symbols_in_block): Update. * mdebugread.c (parse_symbol): Update. * mi/mi-cmd-stack.c (list_arg_or_local): Update. * minsyms.c (add_minsym_to_demangled_hash_table): Update. (minimal_symbol_reader::install): Update. * moxie-tdep.c (moxie_skip_prologue): Update. * parse.c (parse_exp_in_context): Update. * psymtab.c (psymbol_name_matches): Update. (match_partial_symbol): Update. (lookup_partial_symbol): Update. (psymbol_hash): Update. (psymbol_compare): Update. * python/py-framefilter.c (extract_sym): Update. (py_print_single_arg): Update. * stabsread.c (define_symbol): Update. * stack.c (print_frame_arg): Update. (find_frame_funname): Update. (info_frame_command_core): Update. * symfile.c (set_initial_language): Update. * symtab.c (symbol_set_demangled_name): Update. (symbol_get_demangled_name): Update. (symbol_set_language): Update. (symbol_find_demangled_name): Update. (symbol_set_names): Update. (general_symbol_info::natural_name): Update. (general_symbol_info::demangled_name): Update. (general_symbol_info::search_name): Update. (symbol_matches_search_name): Update. (eq_symbol_entry): Update. (iterate_over_symbols): Update. (completion_list_add_symbol): Update. (completion_list_add_msymbol): Update. (completion_list_add_fields): Update. * symtab.h (struct general_symbol_info) <language>: New function. <language>: Rename to... <m_language>: ...this. (SYMBOL_LANGUAGE): Remove. (MSYMBOL_LANGUAGE): Remove. (struct symbol) <ctor>: Update. * xstormy16-tdep.c (xstormy16_skip_prologue): Update. Change-Id: I6464d477457e61639c63ddf8b145e407a35c235a
2019-12-13Revert "Turn off threaded minsym demangling by default"Christian Biesinger1-10/+0
This reverts commit 62e77f56f0ce8b10122881d8f0acd70e113fde93. (except for ChangeLog and a bugfix in minimal_symbol_reader::install) As agreed on the mailing list, now that GDB 9 has branched, this patch reverts the change to set worker-threads to zero. After this patch, multithreaded minsym demangling will be enabled again by default. gdb/ChangeLog: 2019-12-13 Christian Biesinger <cbiesinger@google.com> * maint.c (n_worker_threads): Default to -1. (worker_threads_disabled): Remove function. * maint.h (worker_threads_disabled): Remove function. * minsyms.c (minimal_symbol_reader::record_full): Don't call symbol_set_names here if worker_threads_disabled () is true. Change-Id: I5ff3e318d96f60968c8b8bedb84546ad2314d94b
2019-11-27Turn off threaded minsym demangling by defaultChristian Biesinger1-3/+15
Per discussion on gdb-patches with Joel, this patch turns off multihreaded symbol loading by default. It can be turned on using: maint set worker-threads unlimited To keep the behavior as close as possible to the old code, it still calls symbol_set_names in the old place if n_worker_threads is 0. gdb/ChangeLog: 2019-11-27 Christian Biesinger <cbiesinger@google.com> * maint.c (n_worker_threads): Default to 0. (worker_threads_disabled): New function. * maint.h (worker_threads_disabled): New function. * minsyms.c (minimal_symbol_reader::record_full): Call symbol_set_names here if worker_threads_disabled () is true. (minimal_symbol_reader::install): Skip all threading if worker_threads_disabled () is true. Change-Id: I92ba4f6bbf07363189666327cad452d6b9c8e01d
2019-11-27Compute msymbol hash codes in parallelChristian Biesinger1-15/+31
This is for the msymbol_hash and msymbol_demangled_hash hashtables in objfile_per_bfd_storage. This basically computes those hash codes together with the demangled symbol name in the background, before it inserts the symbols in the hash table. gdb/ChangeLog: 2019-11-27 Christian Biesinger <cbiesinger@google.com> * minsyms.c (add_minsym_to_hash_table): Use a previously computed hash code if possible. (add_minsym_to_demangled_hash_table): Likewise. (minimal_symbol_reader::install): Compute the hash codes for msymbol on the background thread. * symtab.h (struct minimal_symbol) <hash_value, demangled_hash_value>: Add these fields. Change-Id: Ifaa3346e9998f05743bff9e2eaad3f83b954d071
2019-11-27Precompute hash value for symbol_set_namesChristian Biesinger1-2/+25
We can also compute the hash for the mangled name on a background thread so make this function even faster (about a 7% speedup). gdb/ChangeLog: 2019-11-27 Christian Biesinger <cbiesinger@google.com> * minsyms.c (minimal_symbol_reader::install): Also compute the hash of the mangled name on the background thread. * symtab.c (symbol_set_names): Allow passing in the hash of the linkage_name. * symtab.h (symbol_set_names): Likewise. Change-Id: I044449e7eb60cffc1c43efd3412f2b485bd9faac
2019-11-26Demangle minsyms in parallelTom Tromey1-9/+41
This patch introduces a simple parallel for_each and changes the minimal symbol reader to use it when computing the demangled name for a minimal symbol. This yields a speedup when reading minimal symbols. 2019-11-26 Christian Biesinger <cbiesinger@google.com> Tom Tromey <tom@tromey.com> * minsyms.c (minimal_symbol_reader::install): Use parallel_for_each. * gdbsupport/parallel-for.h: New file. * Makefile.in (HFILES_NO_SRCDIR): Add gdbsupport/parallel-for.h. Change-Id: I220341f70e94dd02df5dd424272c50a5afb64978
2019-11-26Defer minimal symbol name-settingTom Tromey1-1/+17
Currently the demangled name of a minimal symbol is set when creating the symbol. However, there is no intrinsic need to do this. This patch instead arranges for the demangling to be done just before the minsym hash tables are filled. This will be useful in a later patch. gdb/ChangeLog 2019-11-26 Tom Tromey <tom@tromey.com> * symtab.h (struct minimal_symbol) <name_set>: New member. * minsyms.c (minimal_symbol_reader::record_full): Copy name. Don't call symbol_set_names. (minimal_symbol_reader::install): Call symbol_set_names. Change-Id: I4fe3993b99fb3a43968067806e294d48e377fd76
2019-11-22Replace the MSYMBOL_*_NAME macros with member functionsChristian Biesinger1-16/+16
Improves readability. In the future, it will also allow making the name private, once the name setter functions become member functions. gdb/ChangeLog: 2019-11-22 Christian Biesinger <cbiesinger@google.com> * ada-lang.c (ada_lookup_simple_minsym): Update. (ada_collect_symbol_completion_matches): Update. * ada-tasks.c (read_atcb): Update. * amd64-windows-tdep.c (amd64_skip_main_prologue): Update. (amd64_windows_skip_trampoline_code): Update. * arm-tdep.c (skip_prologue_function): Update. (arm_skip_stack_protector): Update. * arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update. (arm_wince_skip_main_prologue): Update. * ax-gdb.c (gen_expr): Update. * block.c (call_site_for_pc): Update. * blockframe.c (find_pc_partial_function): Update. * breakpoint.c (set_breakpoint_location_function): Update. * btrace.c (ftrace_print_function_name): Update. (ftrace_function_switched): Update. * c-valprint.c (print_unpacked_pointer): Update. * coffread.c (coff_symfile_read): Update. * compile/compile-c-symbols.c (convert_symbol_bmsym): Update. * compile/compile-cplus-symbols.c (convert_symbol_bmsym): Update. * dwarf-index-write.c (write_psymbols): Update. * dwarf2loc.c (call_site_to_target_addr): Update. (func_verify_no_selftailcall): Update. (tailcall_dump): Update. (call_site_find_chain_1): Update. (dwarf_expr_reg_to_entry_parameter): Update. * elfread.c (elf_gnu_ifunc_record_cache): Update. * eval.c (evaluate_funcall): Update. (evaluate_subexp_standard): Update. (evaluate_subexp_for_sizeof): Update. * expprint.c (print_subexp_standard): Update. (dump_subexp_body_standard): Update. * frame.c (get_prev_frame_always_1): Update. * frv-tdep.c (frv_skip_main_prologue): Update. * gnu-v2-abi.c (gnuv2_value_rtti_type): Update. * gnu-v3-abi.c (gnuv3_rtti_type): Update. (gnuv3_get_typename_from_type_info): Update. (gnuv3_skip_trampoline): Update. * hppa-tdep.c (hppa_lookup_stub_minimal_symbol): Update. * i386-tdep.c (i386_skip_main_prologue): Update. (i386_pe_skip_trampoline_code): Update. * ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update. * infcall.c (get_function_name): Update. * linespec.c (minsym_found): Update. * linux-fork.c (info_checkpoints_command): Update. * m32c-tdep.c (m32c_m16c_address_to_pointer): Update. (m32c_m16c_pointer_to_address): Update. * maint.c (maintenance_translate_address): Update. * minsyms.c (add_minsym_to_hash_table): Update. (add_minsym_to_demangled_hash_table): Update. (lookup_minimal_symbol_mangled): Update. (lookup_minimal_symbol_demangled): Update. (lookup_minimal_symbol_linkage): Update. (lookup_minimal_symbol_text): Update. (lookup_minimal_symbol_by_pc_name): Update. (minimal_symbol_is_less_than): Update. (compact_minimal_symbols): Update. (build_minimal_symbol_hash_tables): Update. (find_solib_trampoline_target): Update. * mips-tdep.c (mips_stub_frame_sniffer): Update. (mips_skip_pic_trampoline_code): Update. * msp430-tdep.c (msp430_skip_trampoline_code): Update. * objc-lang.c (info_selectors_command): Update. (info_classes_command): Update. (find_methods): Update. (find_imps): Update. * p-valprint.c (pascal_val_print): Update. * ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * printcmd.c (build_address_symbolic): Update. (info_symbol_command): Update. * psymtab.c (psymbol_name_matches): Update. (match_partial_symbol): Update. (lookup_partial_symbol): Update. (print_partial_symbols): Update. (sort_pst_symbols): Update. (maintenance_check_psymtabs): Update. * python/py-framefilter.c (py_print_frame): Update. * python/python.c (gdbpy_rbreak): Update. * record-btrace.c (btrace_get_bfun_name): Update. (btrace_call_history): Update. * rs6000-tdep.c (rs6000_skip_main_prologue): Update. (rs6000_skip_trampoline_code): Update. * sol-thread.c (info_cb): Update. * stabsread.c (scan_file_globals): Update. * stack.c (find_frame_funname): Update. (info_frame_command_core): Update. * symmisc.c (dump_msymbols): Update. * symtab.c (symbol_natural_name): Rename to.., (general_symbol_info::natural_name): ...this. (symbol_demangled_name): Rename to... (general_symbol_info::demangled_name): ...this. (symbol_search_name): Rename to... (general_symbol_info::search_name): ...this. (symbol_matches_search_name): Update. (find_pc_sect_line): Update. (skip_prologue_sal): Update. (search_symbols): Update. (print_msymbol_info): Update. (rbreak_command): Update. (completion_list_add_msymbol): Update. (completion_list_objc_symbol): Update. (get_msymbol_address): Update. * symtab.h (struct general_symbol_info): Add member functions natural_name (), linkage_name (), print_name (), demangled_name (), and search_name (). (SYMBOL_NATURAL_NAME): Update. (symbol_natural_name): Move to a member function on general_symbol_info. (SYMBOL_DEMANGLED_NAME): Update. (symbol_demangled_name): Move to a member function on general_symbol_info. (SYMBOL_SEARCH_NAME): Update. (symbol_search_name): Move to a member function on general_symbol_info. (MSYMBOL_NATURAL_NAME): Remove. (MSYMBOL_LINKAGE_NAME): Remove. (MSYMBOL_PRINT_NAME): Remove. (MSYMBOL_DEMANGLED_NAME): Remove. (MSYMBOL_SEARCH_NAME): Remove. * x86-tdep.c (x86_in_indirect_branch_thunk): Update. Change-Id: I65aa529843a9903e174ce799037e41f954a9fcee
2019-10-30Only clear the minsym array when necessaryChristian Biesinger1-8/+14
The array starts out initialized to zero: minimal_symbol *msymbol_hash[MINIMAL_SYMBOL_HASH_SIZE] {}; So we only need to explicitly clear it if there were previous minsyms added to it. This patch does that. gdb/ChangeLog: 2019-10-30 Christian Biesinger <cbiesinger@google.com> * minsyms.c (clear_minimal_symbol_hash_tables): New function. (build_minimal_symbol_hash_tables): Code to clear the table moved to clear_minimal_symbol_hash_tables. (minimal_symbol_reader::install): Call clear_minimal_symbol_hash_tables when needed. Change-Id: I7da994fe6747f67714e7efe9fdbb0dbc4d6ea532
2019-10-29Change some arguments to gdb::string_view instead of name+lenChristian Biesinger1-10/+8
Just some code cleanup. This change has a few benefits: - Shorter argument list in the functions - If the caller needs to calculate the string, they no longer need to explicitly call strlen - It is easy to pass std::string to this (done in one place currently) This also updates a couple of places that were passing 0/1 to a bool parameter. gdb/ChangeLog: 2019-10-29 Christian Biesinger <cbiesinger@google.com> * coffread.c (record_minimal_symbol): Update. (process_coff_symbol): Update. * dbxread.c (read_dbx_symtab): Update. * dwarf2read.c (add_partial_symbol): Update. (fixup_go_packaging): Update. (load_partial_dies): Update. (new_symbol): Update. * elfread.c (record_minimal_symbol): Change signature to use gdb::string_view instead of name+len. (elf_symtab_read): Update. (elf_rel_plt_read): Update. * mdebugread.c (parse_partial_symbols): Update. (handle_psymbol_enumerators): Update. (new_symbol): Update. * minsyms.c (minimal_symbol_reader::record_full): Change signature to use gdb::string_view instead of name+len. * minsyms.h (class minimal_symbol_reader) <record_full>: Likewise. * psympriv.h (add_psymbol_to_list): Likewise. * psymtab.c (add_psymbol_to_bcache): Likewise. (add_psymbol_to_list): Likewise. * stabsread.c (define_symbol): Update. * symtab.c (symbol_set_names): Change signature to use gdb::string_view. * symtab.h (SYMBOL_SET_NAMES): Likewise. (symbol_set_names): Likewise. * xcoffread.c (scan_xcoff_symtab): Update. Change-Id: I2675c6865e0368f9c755a1081088a53aa54dda4c
2019-10-26[gdb] Fix more typos in comments (2)Tom de Vries1-1/+1
Fix typos in comments. NFC. Tested on x86_64-linux. gdb/ChangeLog: 2019-10-26 Tom de Vries <tdevries@suse.de> * aarch64-linux-tdep.c: Fix typos in comments. * aarch64-tdep.c: Same. * ada-lang.c: Same. * amd64-nat.c: Same. * arc-tdep.c: Same. * arch/aarch64-insn.c: Same. * block.c: Same. * breakpoint.h: Same. * btrace.h: Same. * c-varobj.c: Same. * cli/cli-decode.c: Same. * cli/cli-script.c: Same. * cli/cli-utils.h: Same. * coff-pe-read.c: Same. * coffread.c: Same. * compile/compile-cplus-symbols.c: Same. * compile/compile-object-run.c: Same. * completer.c: Same. * corelow.c: Same. * cp-support.c: Same. * demangle.c: Same. * dwarf-index-write.c: Same. * dwarf2-frame.c: Same. * dwarf2-frame.h: Same. * eval.c: Same. * frame-base.h: Same. * frame.h: Same. * gdbcmd.h: Same. * gdbtypes.h: Same. * gnu-nat.c: Same. * guile/scm-objfile.c: Same. * i386-tdep.c: Same. * i386-tdep.h: Same. * infcall.c: Same. * infcall.h: Same. * linux-nat.c: Same. * m68k-tdep.c: Same. * macroexp.c: Same. * memattr.c: Same. * mi/mi-cmd-disas.c: Same. * mi/mi-getopt.h: Same. * mi/mi-main.c: Same. * minsyms.c: Same. * nat/aarch64-sve-linux-sigcontext.h: Same. * objfiles.h: Same. * ppc-linux-nat.c: Same. * ppc-linux-tdep.c: Same. * ppc-tdep.h: Same. * progspace.h: Same. * prologue-value.h: Same. * python/py-evtregistry.c: Same. * python/py-instruction.h: Same. * record-btrace.c: Same. * record-full.c: Same. * remote.c: Same. * rs6000-tdep.c: Same. * ser-tcp.c: Same. * sol-thread.c: Same. * sparc-sol2-tdep.c: Same. * sparc64-tdep.c: Same. * stabsread.c: Same. * symfile.c: Same. * symtab.h: Same. * target.c: Same. * tracepoint.c: Same. * tui/tui-data.h: Same. * tui/tui-io.c: Same. * tui/tui-win.c: Same. * tui/tui.c: Same. * unittests/rsp-low-selftests.c: Same. * user-regs.h: Same. * utils.c: Same. * utils.h: Same. * valarith.c: Same. * valops.c: Same. * valprint.c: Same. * valprint.h: Same. * value.c: Same. * value.h: Same. * varobj.c: Same. * x86-nat.h: Same. * xtensa-tdep.c: Same. gdb/gdbserver/ChangeLog: 2019-10-26 Tom de Vries <tdevries@suse.de> * linux-aarch64-low.c: Fix typos in comments. * linux-arm-low.c: Same. * linux-low.c: Same. * linux-ppc-low.c: Same. * proc-service.c: Same. * regcache.h: Same. * server.c: Same. * tracepoint.c: Same. * win32-low.c: Same. gdb/stubs/ChangeLog: 2019-10-26 Tom de Vries <tdevries@suse.de> * ia64vms-stub.c: Fix typos in comments. * m32r-stub.c: Same. * m68k-stub.c: Same. * sh-stub.c: Same. gdb/testsuite/ChangeLog: 2019-10-26 Tom de Vries <tdevries@suse.de> * gdb.base/bigcore.c: Fix typos in comments. * gdb.base/ctf-ptype.c: Same. * gdb.base/long_long.c: Same. * gdb.dwarf2/dw2-op-out-param.S: Same. * gdb.python/py-evthreads.c: Same. * gdb.reverse/i387-stack-reverse.c: Same. * gdb.trace/tfile.c: Same. * lib/compiler.c: Same. * lib/compiler.cc: Same. Change-Id: I8573d84a577894270179ae30f46c48d806fc1beb
2019-10-02Handle copy relocationsTom Tromey1-0/+23
In ELF, if a data symbol is defined in a shared library and used by the main program, it will be subject to a "copy relocation". In this scenario, the main program has a copy of the symbol in question, and a relocation that tells ld.so to copy the data from the shared library. Then the symbol in the main program is used to satisfy all references. This patch changes gdb to handle this scenario. Data symbols coming from ELF shared libraries get a special flag that indicates that the symbol's address may be subject to copy relocation. I looked briefly into handling copy relocations by looking at the actual relocations in the main program, but this seemed difficult to do with BFD. Note that no caching is done here. Perhaps this could be changed if need be; I wanted to avoid possible problems with either objfile lifetimes and changes, or conflicts with the long-term (vapor-ware) objfile splitting project. gdb/ChangeLog 2019-10-02 Tom Tromey <tromey@adacore.com> * symmisc.c (dump_msymbols): Don't use MSYMBOL_VALUE_ADDRESS. * ada-lang.c (lesseq_defined_than): Handle LOC_STATIC. * dwarf2read.c (dwarf2_per_objfile): Add can_copy parameter. (dwarf2_has_info): Likewise. (new_symbol): Set maybe_copied on symbol when appropriate. * dwarf2read.h (dwarf2_per_objfile): Add can_copy parameter. <can_copy>: New member. * elfread.c (record_minimal_symbol): Set maybe_copied on symbol when appropriate. (elf_symfile_read): Update call to dwarf2_has_info. * minsyms.c (lookup_minimal_symbol_linkage): New function. * minsyms.h (lookup_minimal_symbol_linkage): Declare. * symtab.c (get_symbol_address, get_msymbol_address): New functions. * symtab.h (get_symbol_address, get_msymbol_address): Declare. (SYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_ADDRESS): Handle maybe_copied. (struct symbol, struct minimal_symbol) <maybe_copied>: New member.
2019-09-30Use std::sort instead of qsort in minsyms.cChristian Biesinger1-22/+16
This has better typesafety and is also marginally faster (either due to inlining or because it avoids indirection through a function pointer). Note that in this change: - return 1; /* fn1 has no name, so it is "less". */ + return true; /* fn1 has no name, so it is "less". */ else if (name1) /* fn2 has no name, so it is "less". */ - return -1; + return false; I am fairly sure the old code was wrong (ie. code didn't match the comment and the comment seemed correct), so I fixed it. gdb/ChangeLog: 2019-09-28 Christian Biesinger <cbiesinger@google.com> * minsyms.c (compare_minimal_symbols): Rename to... (minimal_symbol_is_less_than): ...this, and adjust to STL conventions (return bool, take arguments as references) (minimal_symbol_reader::install): Call std::sort instead of qsort.
2019-09-26Convert symtab.h function signatures to use bool instead of intChristian Biesinger1-2/+2
gdb/ChangeLog: 2019-09-26 Christian Biesinger <cbiesinger@google.com> * blockframe.c (find_pc_partial_function): Change return type to bool. * elfread.c (elf_gnu_ifunc_resolve_name): Likewise. * minsyms.c (in_gnu_ifunc_stub): Likewise. (stub_gnu_ifunc_resolve_name): Likewise. * symtab.c (compare_filenames_for_search): Likewise. (compare_glob_filenames_for_search): Likewise. (matching_obj_sections): Likewise. (symbol_matches_domain): Likewise. (find_line_symtab): Change out param EXACT_MATCH to bool *. (find_line_pc): Change return type to bool. (find_line_pc_range): Likewise. (producer_is_realview): Likewise. * symtab.h (symbol_matches_domain): Likewise. (find_pc_partial_function): Likewise. (find_pc_line_pc_range): Likewise. (in_gnu_ifunc_stub): Likewise. (struct gnu_ifunc_fns) <gnu_ifunc_resolve_name>: Likewise. (find_line_pc): Likewise. (find_line_pc_range): Likewise. (matching_obj_sections): Likewise. (find_line_symtab): Change out parameter to bool. (producer_is_realview): Change return type to bool. (compare_filenames_for_search): Likewise. (compare_glob_filenames_for_search): Likewise.
2019-07-09Rename common to gdbsupportTom Tromey1-2/+2
This is the next patch in the ongoing series to move gdbsever to the top level. This patch just renames the "common" directory. The idea is to do this move in two parts: first rename the directory (this patch), then move the directory to the top. This approach makes the patches a bit more tractable. I chose the name "gdbsupport" for the directory. However, as this patch was largely written by sed, we could pick a new name without too much difficulty. Tested by the buildbot. gdb/ChangeLog 2019-07-09 Tom Tromey <tom@tromey.com> * contrib/ari/gdb_ari.sh: Change common to gdbsupport. * configure: Rebuild. * configure.ac: Change common to gdbsupport. * gdbsupport: Rename from common. * acinclude.m4: Change common to gdbsupport. * Makefile.in (CONFIG_SRC_SUBDIR, COMMON_SFILES) (HFILES_NO_SRCDIR, stamp-version, ALLDEPFILES): Change common to gdbsupport. * aarch64-tdep.c, ada-lang.c, ada-lang.h, agent.c, alloc.c, amd64-darwin-tdep.c, amd64-dicos-tdep.c, amd64-fbsd-nat.c, amd64-fbsd-tdep.c, amd64-linux-nat.c, amd64-linux-tdep.c, amd64-nbsd-tdep.c, amd64-obsd-tdep.c, amd64-sol2-tdep.c, amd64-tdep.c, amd64-windows-tdep.c, arch-utils.c, arch/aarch64-insn.c, arch/aarch64.c, arch/aarch64.h, arch/amd64.c, arch/amd64.h, arch/arm-get-next-pcs.c, arch/arm-linux.c, arch/arm.c, arch/i386.c, arch/i386.h, arch/ppc-linux-common.c, arch/riscv.c, arch/riscv.h, arch/tic6x.c, arm-tdep.c, auto-load.c, auxv.c, ax-gdb.c, ax-general.c, ax.h, breakpoint.c, breakpoint.h, btrace.c, btrace.h, build-id.c, build-id.h, c-lang.h, charset.c, charset.h, cli/cli-cmds.c, cli/cli-cmds.h, cli/cli-decode.c, cli/cli-dump.c, cli/cli-option.h, cli/cli-script.c, coff-pe-read.c, command.h, compile/compile-c-support.c, compile/compile-c.h, compile/compile-cplus-symbols.c, compile/compile-cplus-types.c, compile/compile-cplus.h, compile/compile-loc2c.c, compile/compile.c, completer.c, completer.h, contrib/ari/gdb_ari.sh, corefile.c, corelow.c, cp-support.c, cp-support.h, cp-valprint.c, csky-tdep.c, ctf.c, darwin-nat.c, debug.c, defs.h, disasm-selftests.c, disasm.c, disasm.h, dtrace-probe.c, dwarf-index-cache.c, dwarf-index-cache.h, dwarf-index-write.c, dwarf2-frame.c, dwarf2expr.c, dwarf2loc.c, dwarf2read.c, event-loop.c, event-top.c, exceptions.c, exec.c, extension.h, fbsd-nat.c, features/aarch64-core.c, features/aarch64-fpu.c, features/aarch64-pauth.c, features/aarch64-sve.c, features/i386/32bit-avx.c, features/i386/32bit-avx512.c, features/i386/32bit-core.c, features/i386/32bit-linux.c, features/i386/32bit-mpx.c, features/i386/32bit-pkeys.c, features/i386/32bit-segments.c, features/i386/32bit-sse.c, features/i386/64bit-avx.c, features/i386/64bit-avx512.c, features/i386/64bit-core.c, features/i386/64bit-linux.c, features/i386/64bit-mpx.c, features/i386/64bit-pkeys.c, features/i386/64bit-segments.c, features/i386/64bit-sse.c, features/i386/x32-core.c, features/riscv/32bit-cpu.c, features/riscv/32bit-csr.c, features/riscv/32bit-fpu.c, features/riscv/64bit-cpu.c, features/riscv/64bit-csr.c, features/riscv/64bit-fpu.c, features/tic6x-c6xp.c, features/tic6x-core.c, features/tic6x-gp.c, filename-seen-cache.h, findcmd.c, findvar.c, fork-child.c, gcore.c, gdb_bfd.c, gdb_bfd.h, gdb_proc_service.h, gdb_regex.c, gdb_select.h, gdb_usleep.c, gdbarch-selftests.c, gdbthread.h, gdbtypes.h, gnu-nat.c, go32-nat.c, guile/guile.c, guile/scm-ports.c, guile/scm-safe-call.c, guile/scm-type.c, i386-fbsd-nat.c, i386-fbsd-tdep.c, i386-go32-tdep.c, i386-linux-nat.c, i386-linux-tdep.c, i386-tdep.c, i387-tdep.c, ia64-libunwind-tdep.c, ia64-linux-nat.c, inf-child.c, inf-ptrace.c, infcall.c, infcall.h, infcmd.c, inferior-iter.h, inferior.c, inferior.h, inflow.c, inflow.h, infrun.c, infrun.h, inline-frame.c, language.h, linespec.c, linux-fork.c, linux-nat.c, linux-tdep.c, linux-thread-db.c, location.c, machoread.c, macrotab.h, main.c, maint.c, maint.h, memattr.c, memrange.h, mi/mi-cmd-break.h, mi/mi-cmd-env.c, mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-interp.c, mi/mi-main.c, mi/mi-parse.h, minsyms.c, mips-linux-tdep.c, namespace.h, nat/aarch64-linux-hw-point.c, nat/aarch64-linux-hw-point.h, nat/aarch64-linux.c, nat/aarch64-sve-linux-ptrace.c, nat/amd64-linux-siginfo.c, nat/fork-inferior.c, nat/linux-btrace.c, nat/linux-btrace.h, nat/linux-namespaces.c, nat/linux-nat.h, nat/linux-osdata.c, nat/linux-personality.c, nat/linux-procfs.c, nat/linux-ptrace.c, nat/linux-ptrace.h, nat/linux-waitpid.c, nat/mips-linux-watch.c, nat/mips-linux-watch.h, nat/ppc-linux.c, nat/x86-dregs.c, nat/x86-dregs.h, nat/x86-linux-dregs.c, nat/x86-linux.c, nto-procfs.c, nto-tdep.c, objfile-flags.h, objfiles.c, objfiles.h, obsd-nat.c, observable.h, osdata.c, p-valprint.c, parse.c, parser-defs.h, ppc-linux-nat.c, printcmd.c, probe.c, proc-api.c, procfs.c, producer.c, progspace.h, psymtab.h, python/py-framefilter.c, python/py-inferior.c, python/py-ref.h, python/py-type.c, python/python.c, record-btrace.c, record-full.c, record.c, record.h, regcache-dump.c, regcache.c, regcache.h, remote-fileio.c, remote-fileio.h, remote-sim.c, remote.c, riscv-tdep.c, rs6000-aix-tdep.c, rust-exp.y, s12z-tdep.c, selftest-arch.c, ser-base.c, ser-event.c, ser-pipe.c, ser-tcp.c, ser-unix.c, skip.c, solib-aix.c, solib-target.c, solib.c, source-cache.c, source.c, source.h, sparc-nat.c, spu-linux-nat.c, stack.c, stap-probe.c, symfile-add-flags.h, symfile.c, symfile.h, symtab.c, symtab.h, target-descriptions.c, target-descriptions.h, target-memory.c, target.c, target.h, target/waitstatus.c, target/waitstatus.h, thread-iter.h, thread.c, tilegx-tdep.c, top.c, top.h, tracefile-tfile.c, tracefile.c, tracepoint.c, tracepoint.h, tui/tui-io.c, ui-file.c, ui-out.h, unittests/array-view-selftests.c, unittests/child-path-selftests.c, unittests/cli-utils-selftests.c, unittests/common-utils-selftests.c, unittests/copy_bitwise-selftests.c, unittests/environ-selftests.c, unittests/format_pieces-selftests.c, unittests/function-view-selftests.c, unittests/lookup_name_info-selftests.c, unittests/memory-map-selftests.c, unittests/memrange-selftests.c, unittests/mkdir-recursive-selftests.c, unittests/observable-selftests.c, unittests/offset-type-selftests.c, unittests/optional-selftests.c, unittests/parse-connection-spec-selftests.c, unittests/ptid-selftests.c, unittests/rsp-low-selftests.c, unittests/scoped_fd-selftests.c, unittests/scoped_mmap-selftests.c, unittests/scoped_restore-selftests.c, unittests/string_view-selftests.c, unittests/style-selftests.c, unittests/tracepoint-selftests.c, unittests/unpack-selftests.c, unittests/utils-selftests.c, unittests/xml-utils-selftests.c, utils.c, utils.h, valarith.c, valops.c, valprint.c, value.c, value.h, varobj.c, varobj.h, windows-nat.c, x86-linux-nat.c, xml-support.c, xml-support.h, xml-tdesc.h, xstormy16-tdep.c, xtensa-linux-nat.c, dwarf2read.h: Change common to gdbsupport. gdb/gdbserver/ChangeLog 2019-07-09 Tom Tromey <tom@tromey.com> * configure: Rebuild. * configure.ac: Change common to gdbsupport. * acinclude.m4: Change common to gdbsupport. * Makefile.in (SFILES, OBS, GDBREPLAY_OBS, IPA_OBJS) (version-generated.c, gdbsupport/%-ipa.o, gdbsupport/%.o): Change common to gdbsupport. * ax.c, event-loop.c, fork-child.c, gdb_proc_service.h, gdbreplay.c, gdbthread.h, hostio-errno.c, hostio.c, i387-fp.c, inferiors.c, inferiors.h, linux-aarch64-tdesc-selftest.c, linux-amd64-ipa.c, linux-i386-ipa.c, linux-low.c, linux-tic6x-low.c, linux-x86-low.c, linux-x86-tdesc-selftest.c, linux-x86-tdesc.c, lynx-i386-low.c, lynx-low.c, mem-break.h, nto-x86-low.c, regcache.c, regcache.h, remote-utils.c, server.c, server.h, spu-low.c, symbol.c, target.h, tdesc.c, tdesc.h, thread-db.c, tracepoint.c, win32-i386-low.c, win32-low.c: Change common to gdbsupport.
2019-06-26Remove lookup_minimal_symbol_solib_trampolineTom Tromey1-34/+0
lookup_minimal_symbol_solib_trampoline is unused, so this patch removes it. The last use was apparently removed in commit 61a12cfa ("Remove HPUX"). gdb/ChangeLog 2019-06-26 Tom Tromey <tromey@adacore.com> * minsyms.c (lookup_minimal_symbol_solib_trampoline): Remove. * minsyms.h (lookup_minimal_symbol_solib_trampoline): Don't declare.
2019-05-03Remove "struct" from foreach statementsTom Tromey1-1/+1
Some versions of gcc have a bug that causes for (struct mumble : something) ... to give a compiler error. We routinely work around this bug in gdb, but apparently had not done so in a while. This patch fixes the remaining known cases of this problem. gdb/ChangeLog 2019-05-03 Sandra Loosemore <sandra@codesourcery.com> Tom Tromey <tom@tromey.com> * dictionary.c (collate_pending_symbols_by_language): Remove "struct" from foreach. * symtab.c (lookup_global_symbol_from_objfile) (lookup_symbol_in_objfile_from_linkage_name): Remove "struct" from foreach. * ser-tcp.c (net_open): Remove "struct" from foreach. * objfiles.c (objfile_relocate, objfile_rebase) (objfile_has_symbols): Remove "struct" from foreach. * minsyms.c (lookup_minimal_symbol_by_pc_section): Remove "struct" from foreach. * dwarf2read.c (handle_struct_member_die): Remove "struct" from foreach. * darwin-nat.c (thread_info_from_private_thread_info): Remove "struct" from foreach. * ada-lang.c (create_excep_cond_exprs) (ada_exception_catchpoint_cond_string): Remove "struct" from foreach.
2019-04-10Introduce a separate debug objfile iteratorTom Tromey1-4/+1
This introduces a new iterator and range adapter for iteration over the separate debug files of a given objfile. As in the current approach, the requested objfile is returned first, followed by the separate debug objfiles. gdb/ChangeLog 2019-04-10 Tom Tromey <tom@tromey.com> * symtab.c (lookup_global_symbol_from_objfile) (lookup_symbol_in_objfile_from_linkage_name): Use the iterator. * objfiles.h (class separate_debug_iterator): New. (class separate_debug_range): New. (struct objfile) <separate_debug_objfiles>: New method. (objfile_separate_debug_iterate): Don't declare. * objfiles.c (separate_debug_iterator::operator++): Rename from objfile_separate_debug_iterate. (objfile_relocate, objfile_rebase, objfile_has_symbols): Use the iterator. * minsyms.c (lookup_minimal_symbol_by_pc_section): Use the iterator.
2019-04-10Remove some uses of "object_files"Tom Tromey1-16/+10
The "object_files" macro is sometimes used when iterating over objfiles. This patch removes a few such uses in favor of the new range adapter. gdb/ChangeLog 2019-04-10 Tom Tromey <tom@tromey.com> * ia64-tdep.c (ia64_get_dyn_info_list): Use foreach. * minsyms.c (lookup_minimal_symbol): Use foreach. (lookup_minimal_symbol_text, lookup_minimal_symbol_by_pc_name) (lookup_minimal_symbol_solib_trampoline): Likewise. * symfile.c (reread_symbols): Use foreach.
2019-03-27Fix buffer overflow regression due to minsym malloc-ed instead of obstack-ed.Philippe Waroquiers1-8/+10
Valgrind detects the following error in a bunch of tests, e.g. in gdb.base/foll-fork.exp. ==15155== VALGRIND_GDB_ERROR_BEGIN ==15155== Invalid read of size 8 ==15155== at 0x55BE04: minimal_symbol_upper_bound(bound_minimal_symbol) (minsyms.c:1504) ==15155== by 0x3B2E9C: find_pc_partial_function(unsigned long, char const**, unsigned long*, unsigned long*, block const**) (blockframe.c:340) ==15155== by 0x3B3135: find_function_entry_range_from_pc(unsigned long, char const**, unsigned long*, unsigned long*) (blockframe.c:385) ==15155== by 0x4F5597: fill_in_stop_func(gdbarch*, execution_control_state*) [clone .part.16] (infrun.c:4124) ==15155== by 0x4FBE01: fill_in_stop_func (infrun.c:7636) ==15155== by 0x4FBE01: process_event_stop_test(execution_control_state*) (infrun.c:6279) ... ==15155== Address 0x715bec8 is 0 bytes after a block of size 2,952 alloc'd ==15155== at 0x4C2E2B3: realloc (vg_replace_malloc.c:836) ==15155== by 0x405F2C: xrealloc (common-utils.c:62) ==15155== by 0x55BA4E: xresizevec<minimal_symbol> (poison.h:170) ==15155== by 0x55BA4E: minimal_symbol_reader::install() (minsyms.c:1399) ==15155== by 0x4981C7: elf_read_minimal_symbols (elfread.c:1165) ... This seems to be a regression created by: commit 042d75e42c5572f333e0e06dabd3c5c4afab486c Author: Tom Tromey <tom@tromey.com> AuthorDate: Sat Mar 2 12:29:48 2019 -0700 Commit: Tom Tromey <tom@tromey.com> CommitDate: Fri Mar 15 16:02:10 2019 -0600 Allocate minimal symbols with malloc Before this commit, the array of 'struct minimal_symbol' contained a last element that was a "null symbol". The comment in minimal_symbol_reader::install was: /* We also terminate the minimal symbol table with a "null symbol", which is *not* included in the size of the table. This makes it easier to find the end of the table when we are handed a pointer to some symbol in the middle of it. Zero out the fields in the "null symbol" allocated at the end of the array. Note that the symbol count does *not* include this null symbol, which is why it is indexed by mcount and not mcount-1. */ memset (&msymbols[mcount], 0, sizeof (struct minimal_symbol)); However, minimal_symbol_upper_bound was still based on the assumption that the array of minsym is terminated by a minsym with a null symbol: it is looping with: for (i = 1; MSYMBOL_LINKAGE_NAME (msymbol + i) != NULL; i++) Replace this NULL comparison by a logic that calculates how many msymbol are following the msymbols from which we are starting from. (Re-)tested on debian/amd64, natively and under valgrind. gdb/ChangeLog 2019-03-24 Philippe Waroquiers <philippe.waroquiers@skynet.be> Tom Tromey <tromey@adacore.com> * minsyms.c (minimal_symbol_upper_bound): Fix buffer overflow.
2019-03-25Clean up some comments in minsyms.cTom Tromey1-42/+7
Philippe pointed out that some comments in minsyms.c still referred to obstack allocation. This patch fixes these up. In most cases here, my view is that the comments were more misleading than helpful. So, I've generally removed text. gdb/ChangeLog 2019-03-25 Tom Tromey <tromey@adacore.com> * minsyms.c (BUNCH_SIZE): Update comment. (~minimal_symbol_reader): Remove old comment. (compact_minimal_symbols): Update comment. (minimal_symbol_reader::install): Remove old comment. Update other comments.
2019-03-18Fix regression caused by minimal symbol changesTom Tromey1-2/+0
The earlier patch to change minimal symbol allocations to use xmalloc erroneously left a call to obstack_blank in minimal_symbol_reader::install. Because obstack_blank does not finish the object allocation on an obstack, this in turn could cause invalid memory reads in some situations. This patch fixes the problem by removing the call. Tested on x86-64 Fedora 29; also verified with valgrind. gdb/ChangeLog 2019-03-18 Tom Tromey <tromey@adacore.com> * minsyms.c (minimal_symbol_reader::install): Remove call to obstack_blank.
2019-03-15Change minimal_symbol inheritanceTom Tromey1-3/+3
This changes struct minimal_symbol to inherit from general_symbol_info and updates various macros to cope. Because MSYMBOL_SET_LANGUAGE and MSYMBOL_SET_NAMES were only used from a single spot, this patch removes them in favor of simply inlining their definitions. I consider this to be somewhat cleaner, not least because the "phony polymorphism" provided by such macros is not useful in practice. gdb/ChangeLog 2019-03-15 Tom Tromey <tom@tromey.com> * symtab.h (struct minimal_symbol): Derive from general_symbol_info. (MSYMBOL_VALUE, MSYMBOL_VALUE_RAW_ADDRESS) (MSYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_BYTES) (MSYMBOL_BLOCK_VALUE, MSYMBOL_VALUE_CHAIN, MSYMBOL_LANGUAGE) (MSYMBOL_SECTION, MSYMBOL_OBJ_SECTION, MSYMBOL_NATURAL_NAME) (MSYMBOL_LINKAGE_NAME, MSYMBOL_DEMANGLED_NAME) (MSYMBOL_SEARCH_NAME): Update. (MSYMBOL_SET_LANGUAGE, MSYMBOL_SET_NAMES): Remove. * solib.c (gdb_bfd_lookup_symbol_from_symtab): Don't use memset. * minsyms.c (minimal_symbol_reader::record_full): Update.
2019-03-15Use memcpy in minimal_symbol_reader::installTom Tromey1-3/+3
minimal_symbol_reader::install copies minsyms from the msym_bunch objects into the allocated memory. It seemed better to me to do this via memcpy, as that is frequently optimized in libc. gdb/ChangeLog 2019-03-15 Tom Tromey <tom@tromey.com> * minsyms.c (minimal_symbol_reader::install): Use memcpy.