Starting commit bb2a67773c "Use a std::vector in target_section_table" we run
into:
...
ERROR: GDB process no longer exists
GDB process exited with wait status 22239 exp12 0 0 CHILDKILLED SIGABRT
UNRESOLVED: gdb.base/exec-invalid-sysroot.exp: continue to exec catchpoint
...
which reproduces as:
...
Thread 1 "gdb" received signal SIGSEGV, Segmentation fault.
solib_contains_address_p (address=4196111, solib=0x1dd9970)
at /home/vries/gdb_versions/devel/src/gdb/solib.c:1120
1120 for (target_section &p : solib->sections->sections)
(gdb) p solib->sections->sections
Cannot access memory at address 0x0
...
Fix this by handling solib->sections == nullptr in solib_contains_address_p.
Build and reg-tested on x86_64-linux.
gdb/ChangeLog:
2020-10-14 Tom de Vries <tdevries@suse.de>
PR gdb/26733
* solib.c (solib_contains_address_p): Handle
'solib->sections == nullptr'.
Because target_section_table only holds a vector, and because it is
used in an "open" way, this patch makes it just be an alias for the
std::vector specialization. This makes the code less wordy. If we do
ever want to add more specialized behavior to this type, it's simple
enough to convert it back to a struct with the few needed methods
implied by this change.
gdb/ChangeLog
2020-10-12 Tom Tromey <tom@tromey.com>
* target.h (struct target_ops) <get_section_table>: Update.
(target_get_section_table): Update.
* target.c (target_get_section_table, target_section_by_addr)
(memory_xfer_partial_1): Update.
* target-section.h (target_section_table): Now an alias.
* target-delegates.c: Rebuild.
* target-debug.h (target_debug_print_target_section_table_p):
Rename from target_debug_print_struct_target_section_table_p.
* symfile.c (build_section_addr_info_from_section_table): Update.
* solib.c (solib_map_sections, solib_contains_address_p): Update.
* solib-svr4.c (scan_dyntag): Update.
* solib-dsbt.c (scan_dyntag): Update.
* remote.c (remote_target::remote_xfer_live_readonly_partial):
Update.
* record-full.c (record_full_core_target::xfer_partial): Update.
* progspace.h (struct program_space) <target_sections>: Update.
* exec.h (print_section_info): Update.
* exec.c (exec_target::close, build_section_table)
(add_target_sections, add_target_sections_of_objfile)
(remove_target_sections, exec_on_vfork)
(section_table_available_memory)
(section_table_xfer_memory_partial)
(exec_target::get_section_table, exec_target::xfer_partial)
(print_section_info, set_section_command)
(exec_set_section_address, exec_target::has_memory): Update.
* corelow.c (core_target::build_file_mappings)
(core_target::xfer_partial, core_target::info_proc_mappings)
(core_target::info_proc_mappings): Update.
* bfd-target.c (class target_bfd): Update
I noticed that build_section_table cannot fail. This patch changes it
to return a target_section_table and then removes the dead code.
gdb/ChangeLog
2020-10-12 Tom Tromey <tom@tromey.com>
* solib.c (solib_map_sections): Update.
* record-full.c (record_full_core_open_1): Update.
* exec.h (build_section_table): Return a target_section_table.
* exec.c (exec_file_attach): Update.
(build_section_table): Return a target_section_table.
* corelow.c (core_target::core_target): Update.
* bfd-target.c (target_bfd::target_bfd): Update.
This changes target_section_table to wrap a std::vector. This
simplifies some code, and also enables the simplifications coming in
the subsequent patches.
Note that for solib, I chose to have it use a pointer to a
target_section_table. This is more convoluted than would be ideal,
but I didn't want to convert solib to new/delete as a prerequisite for
this series.
gdb/ChangeLog
2020-10-12 Tom Tromey <tom@tromey.com>
* target.c (target_section_by_addr, memory_xfer_partial_1):
Update.
* target-section.h (struct target_section_table): Use
std::vector.
* symfile.h (build_section_addr_info_from_section_table): Take a
target_section_table.
* symfile.c (build_section_addr_info_from_section_table): Take a
target_section_table.
* solist.h (struct so_list) <sections>: Change type.
<sections_end>: Remove.
* solib.c (solib_map_sections, clear_so, solib_read_symbols)
(solib_contains_address_p): Update.
* solib-svr4.c (scan_dyntag): Update.
* solib-dsbt.c (scan_dyntag): Update.
* remote.c (remote_target::remote_xfer_live_readonly_partial):
Update.
* record-full.c (record_full_core_start, record_full_core_end):
Remove.
(record_full_core_sections): New global.
(record_full_core_open_1, record_full_core_target::xfer_partial):
Update.
* exec.h (build_section_table, section_table_xfer_memory_partial)
(add_target_sections): Take a target_section_table.
* exec.c (exec_file_attach, clear_section_table): Update.
(resize_section_table): Remove.
(build_section_table, add_target_sections): Take a
target_section_table.
(add_target_sections_of_objfile, remove_target_sections)
(exec_on_vfork): Update.
(section_table_available_memory): Take a target_section_table.
(section_table_read_available_memory): Update.
(section_table_xfer_memory_partial): Take a target_section_table.
(print_section_info, set_section_command)
(exec_set_section_address, exec_target::has_memory): Update.
* corelow.c (class core_target) <m_core_section_table,
m_core_file_mappings>: Remove braces.
<~core_target>: Remove.
(core_target::core_target): Update.
(core_target::~core_target): Remove.
(core_target::build_file_mappings)
(core_target::xfer_memory_via_mappings)
(core_target::xfer_partial, core_target::info_proc_mappings):
Update.
* bfd-target.c (target_bfd::xfer_partial): Update.
(target_bfd::target_bfd): Update.
(target_bfd::~target_bfd): Remove.
This patch started as an attempt to replace ALL_SO_LIBS with an
ordinary C++ iterator. However, then I tripped over the so_list_head
define again, and decided to remove it as well.
gdb/ChangeLog
2020-05-08 Tom Tromey <tom@tromey.com>
* mi/mi-cmd-file.c (mi_cmd_file_list_shared_libraries): Update.
* solib-svr4.c (svr4_fetch_objfile_link_map): Update.
(enable_break): Update.
* solib-frv.c (frv_fdpic_find_global_pointer): Update.
(frv_fdpic_find_canonical_descriptor): Update.
(frv_fetch_objfile_link_map): Update.
* progspace.c (program_space::free_all_objfiles): Update.
(program_space::solibs): New method.
* progspace.h (struct program_space) <solibs>: New method.
* solist.h (master_so_list): Don't declare.
(ALL_SO_LIBS): Remove.
* solib.h (so_list_head): Remove.
(update_solib_list): Update comment.
* solib.c (master_so_list): Remove.
(solib_used, update_solib_list, solib_add)
(info_sharedlibrary_command, clear_solib)
(reload_shared_libraries_1, remove_user_added_objfile): Update.
The idea behind this is that, in the long run, some code will need to
be able to hold onto an objfile after it is unlinked from the program
space. In particular, this is needed for some functionality to be
moved to worker threads -- otherwise the objfile can be deleted while
still in use.
So, this makes ~objfile private, replacing it with an "unlink" method,
making it more obvious which operation is intended at the calling
points.
gdb/ChangeLog
2019-12-12 Tom Tromey <tom@tromey.com>
* symfile.c (syms_from_objfile_1): Use objfile_up.
(syms_from_objfile_1, remove_symbol_file_command): Call unlink
method.
(reread_symbols): Use objfile_up.
* solib.c (update_solib_list, reload_shared_libraries_1): Call
unlink method.
* objfiles.h (struct objfile) <~objfile>: Now private.
<unlink>: New method.
(struct objfile_deleter): New.
(objfile_up): New typedef.
* objfiles.c (objfile::unlink): New method.
(free_objfile_separate_debug, free_all_objfiles)
(objfile_purge_solibs): Use it.
* jit.c (jit_unregister_code): Remove.
(jit_inferior_exit_hook, jit_event_handler): Call unlink on
objfile.
* compile/compile-object-run.c (do_module_cleanup): Call unlink on
objfile.
* compile/compile-object-load.c (compile_object_load): Use
objfile_up.
Change-Id: I934bee70b26b8b24e1735828fb1e60fe8a05714f
This does not touch "int from_tty" and a couple of other instances
that require a bigger change.
gdb/ChangeLog:
2019-11-25 Christian Biesinger <cbiesinger@google.com>
* solib.c (solib_find_1): Change int to bool.
(exec_file_find): Change int to bool.
(solib_find): Change int to bool.
(solib_read_symbols): Change int to bool.
(solib_used): Change int to bool.
(solib_add): Change int to bool.
(info_sharedlibrary_command): Change int to bool.
(solib_contains_address_p): Change int to bool.
(solib_keep_data_in_core): Change int to bool.
(in_solib_dynsym_resolve_code): Change int to bool.
(reload_shared_libraries_1): Change int to bool.
(gdb_sysroot_changed): Change int to bool.
* solib.h (solib_read_symbols): Change int to bool.
(solib_contains_address_p): Change int to bool.
(solib_keep_data_in_core): Change int to bool.
(in_solib_dynsym_resolve_code): Change int to bool.
(libpthread_name_p): Change int to bool.
Change-Id: Id695ed4ed0c3526af477d4d2bf585a7193c36cab
I went through most of the spots that include readline.h and, when
appropriate, either removed the include or changed it to include
tilde.h.
Note that remote-sim.c and bsd-kvm.c could probably include tilde.h
instead, but I did not change these. I think I can't build the
latter, and I didn't want to set up a sim build for the former.
Tested by rebuilding.
gdb/ChangeLog
2019-11-06 Tom Tromey <tom@tromey.com>
* tui/tui-interp.c: Don't include readline.h.
* tui/tui-hooks.c: Don't include readline.h.
* symmisc.c: Include tilde.h, not readline.h.
* symfile.c: Include tilde.h, not readline.h.
* source.c: Include tilde.h, not readline.h.
* solib.c: Include tilde.h, not readline.h.
* psymtab.c: Include tilde.h, not readline.h.
* exec.c: Include tilde.h, not readline.h.
* corelow.c: Include tilde.h, not readline.h.
* cli/cli-dump.c: Include tilde.h, not readline.h.
* cli/cli-cmds.c: Don't include readline.h.
Change-Id: I60487a190c43128b800ef77517d1ab42957571d7
All implementations of either function use it for the same purpose (except
Darwin, which is a no-op): to prefer a symbol in the current objfile over
symbols with the same name in other objfiles. There does not seem to be a
reason to have both mechanisms for that purpose.
gdb/ChangeLog:
2019-09-20 Christian Biesinger <cbiesinger@google.com>
* solib-darwin.c (darwin_lookup_lib_symbol): Remove.
(_initialize_darwin_solib): Don't set
darwin_so_ops.lookup_lib_global_symbol.
* solib-svr4.c (set_solib_svr4_fetch_link_map_offsets): Call
set_gdbarch_iterate_over_objfiles_in_search_order.
(elf_lookup_lib_symbol): Rename to...
(svr4_iterate_over_objfiles_in_search_order): this, and update
to iterate semantics.
(_initialize_svr4_solib): Don't set lookup_lib_global_symbol.
* solib.c (solib_global_lookup): Remove.
* solist.h (struct target_so_ops): Remove lookup_lib_global_symbol.
(solib_global_lookup): Remove.
* symtab.c (lookup_global_or_static_symbol): Remove call to
solib_global_lookup.
This rewrites gdb's TRY/CATCH to plain C++ try/catch. The patch was
largely written by script, though one change (to a comment in
common-exceptions.h) was reverted by hand.
gdb/ChangeLog
2019-04-08 Tom Tromey <tom@tromey.com>
* xml-support.c: Use C++ exception handling.
* x86-linux-nat.c: Use C++ exception handling.
* windows-nat.c: Use C++ exception handling.
* varobj.c: Use C++ exception handling.
* value.c: Use C++ exception handling.
* valprint.c: Use C++ exception handling.
* valops.c: Use C++ exception handling.
* unittests/parse-connection-spec-selftests.c: Use C++ exception
handling.
* unittests/cli-utils-selftests.c: Use C++ exception handling.
* typeprint.c: Use C++ exception handling.
* tui/tui.c: Use C++ exception handling.
* tracefile-tfile.c: Use C++ exception handling.
* top.c: Use C++ exception handling.
* thread.c: Use C++ exception handling.
* target.c: Use C++ exception handling.
* symmisc.c: Use C++ exception handling.
* symfile-mem.c: Use C++ exception handling.
* stack.c: Use C++ exception handling.
* sparc64-linux-tdep.c: Use C++ exception handling.
* solib.c: Use C++ exception handling.
* solib-svr4.c: Use C++ exception handling.
* solib-spu.c: Use C++ exception handling.
* solib-frv.c: Use C++ exception handling.
* solib-dsbt.c: Use C++ exception handling.
* selftest-arch.c: Use C++ exception handling.
* s390-tdep.c: Use C++ exception handling.
* rust-lang.c: Use C++ exception handling.
* rust-exp.y: Use C++ exception handling.
* rs6000-tdep.c: Use C++ exception handling.
* rs6000-aix-tdep.c: Use C++ exception handling.
* riscv-tdep.c: Use C++ exception handling.
* remote.c: Use C++ exception handling.
* remote-fileio.c: Use C++ exception handling.
* record-full.c: Use C++ exception handling.
* record-btrace.c: Use C++ exception handling.
* python/python.c: Use C++ exception handling.
* python/py-value.c: Use C++ exception handling.
* python/py-utils.c: Use C++ exception handling.
* python/py-unwind.c: Use C++ exception handling.
* python/py-type.c: Use C++ exception handling.
* python/py-symbol.c: Use C++ exception handling.
* python/py-record.c: Use C++ exception handling.
* python/py-record-btrace.c: Use C++ exception handling.
* python/py-progspace.c: Use C++ exception handling.
* python/py-prettyprint.c: Use C++ exception handling.
* python/py-param.c: Use C++ exception handling.
* python/py-objfile.c: Use C++ exception handling.
* python/py-linetable.c: Use C++ exception handling.
* python/py-lazy-string.c: Use C++ exception handling.
* python/py-infthread.c: Use C++ exception handling.
* python/py-inferior.c: Use C++ exception handling.
* python/py-gdb-readline.c: Use C++ exception handling.
* python/py-framefilter.c: Use C++ exception handling.
* python/py-frame.c: Use C++ exception handling.
* python/py-finishbreakpoint.c: Use C++ exception handling.
* python/py-cmd.c: Use C++ exception handling.
* python/py-breakpoint.c: Use C++ exception handling.
* python/py-arch.c: Use C++ exception handling.
* printcmd.c: Use C++ exception handling.
* ppc-linux-tdep.c: Use C++ exception handling.
* parse.c: Use C++ exception handling.
* p-valprint.c: Use C++ exception handling.
* objc-lang.c: Use C++ exception handling.
* mi/mi-main.c: Use C++ exception handling.
* mi/mi-interp.c: Use C++ exception handling.
* mi/mi-cmd-stack.c: Use C++ exception handling.
* mi/mi-cmd-break.c: Use C++ exception handling.
* main.c: Use C++ exception handling.
* linux-thread-db.c: Use C++ exception handling.
* linux-tdep.c: Use C++ exception handling.
* linux-nat.c: Use C++ exception handling.
* linux-fork.c: Use C++ exception handling.
* linespec.c: Use C++ exception handling.
* language.c: Use C++ exception handling.
* jit.c: Use C++ exception handling.
* infrun.c: Use C++ exception handling.
* infcmd.c: Use C++ exception handling.
* infcall.c: Use C++ exception handling.
* inf-loop.c: Use C++ exception handling.
* i386-tdep.c: Use C++ exception handling.
* i386-linux-tdep.c: Use C++ exception handling.
* guile/scm-value.c: Use C++ exception handling.
* guile/scm-type.c: Use C++ exception handling.
* guile/scm-symtab.c: Use C++ exception handling.
* guile/scm-symbol.c: Use C++ exception handling.
* guile/scm-pretty-print.c: Use C++ exception handling.
* guile/scm-ports.c: Use C++ exception handling.
* guile/scm-param.c: Use C++ exception handling.
* guile/scm-math.c: Use C++ exception handling.
* guile/scm-lazy-string.c: Use C++ exception handling.
* guile/scm-frame.c: Use C++ exception handling.
* guile/scm-disasm.c: Use C++ exception handling.
* guile/scm-cmd.c: Use C++ exception handling.
* guile/scm-breakpoint.c: Use C++ exception handling.
* guile/scm-block.c: Use C++ exception handling.
* guile/guile-internal.h: Use C++ exception handling.
* gnu-v3-abi.c: Use C++ exception handling.
* gdbtypes.c: Use C++ exception handling.
* frame.c: Use C++ exception handling.
* frame-unwind.c: Use C++ exception handling.
* fbsd-tdep.c: Use C++ exception handling.
* f-valprint.c: Use C++ exception handling.
* exec.c: Use C++ exception handling.
* event-top.c: Use C++ exception handling.
* event-loop.c: Use C++ exception handling.
* eval.c: Use C++ exception handling.
* dwarf2read.c: Use C++ exception handling.
* dwarf2loc.c: Use C++ exception handling.
* dwarf2-frame.c: Use C++ exception handling.
* dwarf2-frame-tailcall.c: Use C++ exception handling.
* dwarf-index-write.c: Use C++ exception handling.
* dwarf-index-cache.c: Use C++ exception handling.
* dtrace-probe.c: Use C++ exception handling.
* disasm-selftests.c: Use C++ exception handling.
* darwin-nat.c: Use C++ exception handling.
* cp-valprint.c: Use C++ exception handling.
* cp-support.c: Use C++ exception handling.
* cp-abi.c: Use C++ exception handling.
* corelow.c: Use C++ exception handling.
* completer.c: Use C++ exception handling.
* compile/compile-object-run.c: Use C++ exception handling.
* compile/compile-object-load.c: Use C++ exception handling.
* compile/compile-cplus-symbols.c: Use C++ exception handling.
* compile/compile-c-symbols.c: Use C++ exception handling.
* common/selftest.c: Use C++ exception handling.
* common/new-op.c: Use C++ exception handling.
* cli/cli-script.c: Use C++ exception handling.
* cli/cli-interp.c: Use C++ exception handling.
* cli/cli-cmds.c: Use C++ exception handling.
* c-varobj.c: Use C++ exception handling.
* btrace.c: Use C++ exception handling.
* breakpoint.c: Use C++ exception handling.
* break-catch-throw.c: Use C++ exception handling.
* arch-utils.c: Use C++ exception handling.
* amd64-tdep.c: Use C++ exception handling.
* ada-valprint.c: Use C++ exception handling.
* ada-typeprint.c: Use C++ exception handling.
* ada-lang.c: Use C++ exception handling.
* aarch64-tdep.c: Use C++ exception handling.
gdb/gdbserver/ChangeLog
2019-04-08 Tom Tromey <tom@tromey.com>
* server.c: Use C++ exception handling.
* linux-low.c: Use C++ exception handling.
* gdbreplay.c: Use C++ exception handling.
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.
This replaces "the the" with "the" in various comments.
Tested by rebuilding. This didn't test the solib-dsbt.c change, but
it looks harmless.
gdb/ChangeLog
2019-01-17 Tom Tromey <tromey@bapiya>
* valprint.c: Replace "the the" with "the".
* symtab.c: Replace "the the" with "the".
* solib.c: Replace "the the" with "the".
* solib-dsbt.c: Replace "the the" with "the".
* linespec.c: Replace "the the" with "the".
* dwarf2loc.h: Replace "the the" with "the".
* amd64-windows-tdep.c: Replace "the the" with "the".
* aarch64-tdep.c: Replace "the the" with "the".
This removes most uses of ALL_OBJFILES, replacing them with ranged for
loops. The remaining uses are all in macros, and will be removed in
subsequent patches.
gdb/ChangeLog
2019-01-09 Tom Tromey <tom@tromey.com>
* symtab.c (iterate_over_symtabs, matching_obj_sections)
(expand_symtab_containing_pc, lookup_static_symbol)
(basic_lookup_transparent_type, find_pc_sect_compunit_symtab)
(find_symbol_at_address, find_line_symtab, find_main_name): Use
all_objfiles.
* probe.c (find_probe_by_pc, collect_probes): Use all_objfiles.
* breakpoint.c (create_overlay_event_breakpoint)
(create_longjmp_master_breakpoint)
(create_std_terminate_master_breakpoint)
(create_exception_master_breakpoint): Use all_objfiles.
* linux-thread-db.c (try_thread_db_load_from_pdir)
(has_libpthread): Use all_objfiles.
* ada-lang.c (add_nonlocal_symbols): Use all_objfiles.
* linespec.c (iterate_over_all_matching_symtabs)
(search_minsyms_for_name): Use all_objfiles.
* maint.c (maintenance_info_sections): Use all_objfiles.
* main.c (captured_main_1): Use all_objfiles.
* spu-tdep.c (spu_objfile_from_frame): Use all_objfiles.
* guile/scm-objfile.c (gdbscm_objfiles): Use all_objfiles.
* guile/scm-pretty-print.c
(ppscm_find_pretty_printer_from_objfiles): Use all_objfiles.
* solib-spu.c (append_ocl_sos): Use all_objfiles.
* symmisc.c (maintenance_print_symbols): Use all_objfiles.
(maintenance_print_msymbols): Use all_objfiles.
* source.c (select_source_symtab): Use all_objfiles.
* jit.c (jit_find_objf_with_entry_addr): Use all_objfiles.
* symfile.c (remove_symbol_file_command)
(expand_symtabs_matching, map_symbol_filenames): Use
all_objfiles.
* ppc-linux-tdep.c (ppc_linux_spe_context_inferior_created): Use
all_objfiles.
* dwarf2-frame.c (dwarf2_frame_find_fde): Use all_objfiles.
* objc-lang.c (find_methods): Use all_objfiles.
* objfiles.c (have_partial_symbols, have_full_symbols)
(have_minimal_symbols, qsort_cmp)
(default_iterate_over_objfiles_in_search_order): Use
all_objfiles.
* hppa-tdep.c (find_unwind_entry): Use all_objfiles.
* psymtab.c (maintenance_print_psymbols): Use all_objfiles.
(maintenance_check_psymtabs): Use all_objfiles.
(ALL_PSYMTABS): Remove.
* compile/compile-object-run.c (do_module_cleanup): Use
all_objfiles.
* blockframe.c (find_pc_partial_function): Use all_objfiles.
* cp-support.c (add_symbol_overload_list_qualified): Use
all_objfiles.
* windows-tdep.c (windows_iterate_over_objfiles_in_search_order):
Use all_objfiles.
* dwarf-index-write.c (save_gdb_index_command): Use all_objfiles.
* python/py-xmethods.c (gdbpy_get_matching_xmethod_workers): Use
all_objfiles.
* python/py-objfile.c (objfpy_lookup_objfile_by_name)
(objfpy_lookup_objfile_by_build_id): Use all_objfiles.
* python/py-prettyprint.c (find_pretty_printer_from_objfiles):
Uses all_objfiles.
* solib.c (solib_read_symbols): Use all_objfiles
This commit applies all changes made after running the gdb/copyright.py
script.
Note that one file was flagged by the script, due to an invalid
copyright header
(gdb/unittests/basic_string_view/element_access/char/empty.cc).
As the file was copied from GCC's libstdc++-v3 testsuite, this commit
leaves this file untouched for the time being; a patch to fix the header
was sent to gcc-patches first.
gdb/ChangeLog:
Update copyright year range in all GDB files.
The function interp_ui_out simply calls the interp_ui_out method.
However, if it is passed a NULL interpreter, it first finds the
current interpreter. I believe, though, that NULL is never passed
here, and I think it's simpler to just remove this function and
require callers to be more explicit.
ChangeLog
2018-05-25 Tom Tromey <tom@tromey.com>
* utils.c (fputs_maybe_filtered): Update.
* linespec.c (decode_line_full): Update.
* mi/mi-interp.c (mi_on_normal_stop_1, mi_tsv_modified)
(mi_print_breakpoint_for_event, mi_solib_loaded)
(mi_solib_unloaded, mi_command_param_changed, mi_memory_changed)
(mi_user_selected_context_changed): Update.
* mi/mi-main.c (mi_execute_command): Update.
* cli/cli-script.c (execute_control_command): Update.
* python/python.c (execute_gdb_command): Update.
* solib.c (info_sharedlibrary_command): Update.
* interps.c (interp_ui_out): Remove.
* interps.h (interp_ui_out): Remove.
This converts observers from using a special source-generating script
to be plain C++. This version of the patch takes advantage of C++11
by using std::function and variadic templates; incorporates Pedro's
patches; and renames the header file to "observable.h" (this change
eliminates the need for a clean rebuild).
Note that Pedro's patches used a template lambda in tui-hooks.c, but
this failed to compile on some buildbot instances (presumably due to
differing C++ versions); I replaced this with an ordinary template
function.
Regression tested on the buildbot.
gdb/ChangeLog
2018-03-19 Pedro Alves <palves@redhat.com>
Tom Tromey <tom@tromey.com>
* unittests/observable-selftests.c: New file.
* common/observable.h: New file.
* observable.h: New file.
* ada-lang.c, ada-tasks.c, agent.c, aix-thread.c, annotate.c,
arm-tdep.c, auto-load.c, auxv.c, break-catch-syscall.c,
breakpoint.c, bsd-uthread.c, cli/cli-interp.c, cli/cli-setshow.c,
corefile.c, dummy-frame.c, event-loop.c, event-top.c, exec.c,
extension.c, frame.c, gdbarch.c, guile/scm-breakpoint.c,
infcall.c, infcmd.c, inferior.c, inflow.c, infrun.c, jit.c,
linux-tdep.c, linux-thread-db.c, m68klinux-tdep.c,
mi/mi-cmd-break.c, mi/mi-interp.c, mi/mi-main.c, objfiles.c,
ppc-linux-nat.c, ppc-linux-tdep.c, printcmd.c, procfs.c,
python/py-breakpoint.c, python/py-finishbreakpoint.c,
python/py-inferior.c, python/py-unwind.c, ravenscar-thread.c,
record-btrace.c, record-full.c, record.c, regcache.c, remote.c,
riscv-tdep.c, sol-thread.c, solib-aix.c, solib-spu.c, solib.c,
spu-multiarch.c, spu-tdep.c, stack.c, symfile-mem.c, symfile.c,
symtab.c, thread.c, top.c, tracepoint.c, tui/tui-hooks.c,
tui/tui-interp.c, valops.c: Update all users.
* tui/tui-hooks.c (tui_bp_created_observer)
(tui_bp_deleted_observer, tui_bp_modified_observer)
(tui_inferior_exit_observer, tui_before_prompt_observer)
(tui_normal_stop_observer, tui_register_changed_observer):
Remove.
(tui_observers_token): New global.
(attach_or_detach, tui_attach_detach_observers): New functions.
(tui_install_hooks, tui_remove_hooks): Use
tui_attach_detach_observers.
* record-btrace.c (record_btrace_thread_observer): Remove.
(record_btrace_thread_observer_token): New global.
* observer.sh: Remove.
* observer.c: Rename to observable.c.
* observable.c (namespace gdb_observers): Define new objects.
(observer_debug): Move into gdb_observers namespace.
(struct observer, struct observer_list, xalloc_observer_list_node)
(xfree_observer_list_node, generic_observer_attach)
(generic_observer_detach, generic_observer_notify): Remove.
(_initialize_observer): Update.
Don't include observer.inc.
* Makefile.in (generated_files): Remove observer.h, observer.inc.
(clean mostlyclean): Likewise.
(observer.h, observer.inc): Remove targets.
(SUBDIR_UNITTESTS_SRCS): Add observable-selftests.c.
(COMMON_SFILES): Use observable.c, not observer.c.
* .gitignore: Remove observer.h.
gdb/doc/ChangeLog
2018-03-19 Tom Tromey <tom@tromey.com>
* observer.texi: Remove.
gdb/testsuite/ChangeLog
2018-03-19 Tom Tromey <tom@tromey.com>
* gdb.gdb/observer.exp: Remove.
This removes some cleanups from solib.c, replacing them with
gdb::def_vector.
Regression tested by the buildbot.
gdb/ChangeLog
2018-03-18 Tom Tromey <tom@tromey.com>
* solib.c (gdb_bfd_lookup_symbol_from_symtab): Use
gdb::def_vector.
(bfd_lookup_symbol_from_dyn_symtab): Likewise.
This constifies the bfd_open method of struct target_so_ops.
gdb/ChangeLog
2018-02-14 Tom Tromey <tom@tromey.com>
* solist.h (struct target_so_ops) <bfd_open>: Make pathname
const.
(solib_bfd_open): Make pathname const.
* solib.c (solib_bfd_open): Make pathname const.
* solib-spu.c (spu_bfd_fopen): Make name const.
(spu_bfd_open): Make pathname const.
* solib-darwin.c (darwin_bfd_open): Make pathname const.
* solib-aix.c (solib_aix_bfd_open): Make pathname const.
This changes openp, source_full_path_of, and find_and_open_source to
take a unique_xmalloc_ptr, rather than a char*, as an outgoing
argument type. This simplifies the API, ownership-wise, and allows
for the removal of some cleanups.
gdb/ChangeLog
2018-02-14 Tom Tromey <tom@tromey.com>
* symfile.c (symfile_bfd_open): Update.
* source.h (openp, source_full_path_of, find_and_open_source):
Change argument type to unique_xmalloc_ptr.
* source.c (openp): Take a unique_xmalloc_ptr.
(source_full_path_of, find_and_open_source): Likewise.
(open_source_file, symtab_to_fullname): Update.
* solist.h (struct target_so_ops) <find_and_open_solib>: Take a
unique_xmalloc_ptr.
* solib.c (solib_find_1): Use unique_xmalloc_ptr.
(exec_file_find): Update.
* psymtab.c (psymtab_to_fullname): Update.
* nto-tdep.h (nto_find_and_open_solib): Update.
* nto-tdep.c (nto_find_and_open_solib): Change temp_path to a
unique_xmalloc_ptr.
* exec.c (exec_file_attach): Update.
* dwarf2read.c (try_open_dwop_file): Use unique_xmalloc_ptr.
* cli/cli-cmds.c (find_and_open_script): Use unique_xmalloc_ptr.
I noticed a few declarations in defs.h that really could be put into
source.h. I think it's generally preferable to something out of
defs.h unless it is needed by most of the files in gdb.
gdb/ChangeLog
2018-02-14 Tom Tromey <tom@tromey.com>
* solib.c: Include source.h.
* nto-tdep.c: Include source.h.
* mi/mi-cmd-env.c: Include source.h.
* infcmd.c: Include source.h.
* exec.c: Include source.h.
* defs.h (enum openp_flag, openp, source_full_path_of, mod_path)
(add_path, directory_switch, source_path, init_source_path): Move
declarations...
* source.h (enum openp_flag, openp, source_full_path_of, mod_path)
(add_path, directory_switch, source_path, init_source_path):
...here.
This changes a couple of solib.c functions -- exec_file_find and
solib_find -- to return a unique_xmalloc_ptr, and then fixes up the
users. This allows the removal of some cleanups.
This also changes solib_bfd_open to not take ownership of its
argument. I think this change is somewhat cleaner.
gdb/ChangeLog
2018-02-14 Tom Tromey <tom@tromey.com>
* solist.h (exec_file_find, solib_find): Return
unique_xmalloc_ptr.
(solib_bfd_fopen): Take a const char *.
* solib.c (solib_find_1): Return unique_xmalloc_ptr.
(exec_file_find, solib_find): Likewise.
(solib_bfd_fopen): Do not take ownership of "pathname".
(solib_bfd_open): Use unique_xmalloc_ptr.
* solib-darwin.c (darwin_bfd_open): Use unique_xmalloc_ptr.
* solib-aix.c (solib_aix_bfd_open): Use unique_xmalloc_ptr.
* infrun.c (follow_exec): Use unique_xmalloc_ptr.
* exec.c (exec_file_locate_attach): Use unique_xmalloc_ptr.
This removes a couple of cleanups from solib.c, replacing one with
std::string and another with unique_xmalloc_ptr.
2018-02-08 Tom Tromey <tom@tromey.com>
* solib.c (solib_find_1): Use std::string.
(solib_bfd_fopen): Use unique_xmalloc_ptr.
This changes objfiles to use new and delete rather than xmalloc and
free. Simon noticed that it uses a non-POD and so shouldn't be
allocated with XCNEW; and I wanted to be able to use another non-POD as
a member; this patch is the result.
Regression tested by the buildbot.
2017-10-13 Tom Tromey <tom@tromey.com>
* compile/compile-object-run.c (do_module_cleanup): Use delete.
* solib.c (update_solib_list, reload_shared_libraries_1): Use
delete.
* symfile.c (symbol_file_add_with_addrs): Use new.
(symbol_file_add_separate): Update comment.
(syms_from_objfile_1, remove_symbol_file_command): Use delete.
* jit.c (jit_object_close_impl): Use new.
(jit_unregister_code): Use delete.
* objfiles.c (objfile::objfile): Rename from allocate_objfile.
(~objfile): Rename from free_objfile.
(free_objfile_separate_debug, do_free_objfile_cleanup)
(free_all_objfiles, objfile_purge_solibs): Use delete.
* objfiles.h (struct objfile): Add constructor and destructor.
Use DISABLE_COPY_AND_ASSIGN. Add initializers to data members.
(allocate_objfile, free_objfile): Don't declare.
(struct objstats): Add initializers.
If you want to use catch_errors with a function with parameters, then
currently you have to manually write a "capture" struct wrapping the
arguments and marshall/unmarshall that.
https://sourceware.org/ml/gdb-patches/2017-09/msg00834.html proposed
adjusting catch_errors to use gdb::function_view, which would allow
passing lambdas with automatic captures. However, it seems like using
TRY/CATCH directly instead ends up producing clearer and easier to
debug code. This is what this commit does.
Note that removing catch_errors exposes further cleanup opportunities
around no longer having to follow catch_errors callback type, and also
removes a few cleanups.
I didn't do anything to save/restore current_uiout because I think
that should be the responsibility of the code that changes
current_uiout in the first place.
(Another approach could be to make catch_errors a variadic template
like:
template<typename Function, typename... Args>
int catch_errors (const char *errstring, return_mask mask,
Function &&func, Args... args);
and then with:
extern void function_with_args (int, int);
extern void function_with_no_args ();
calls to the above functions would be wrapped like this:
catch_errors ("some error happened", RETURN_MASK_ERROR,
function_with_args, arg1, arg2);
catch_errors ("some error happened", RETURN_MASK_ERROR,
function_with_no_args);
but I'm thinking that that doesn't improve much if at all either.)
gdb/ChangeLog
2017-10-10 Pedro Alves <palves@redhat.com>
Tom Tromey <tom@tromey.com>
* breakpoint.c (breakpoint_cond_eval): Change return type to bool
and reverse logic.
(WP_DELETED, WP_VALUE_CHANGED, WP_VALUE_NOT_CHANGED, WP_IGNORE):
No longer macros. Instead ...
(enum wp_check_result): They're now values of this new
enumeration.
(watchpoint_check): Change return type to wp_check_result and
parameter type to bpstat.
(bpstat_check_watchpoint): Use TRY/CATCH instead of catch_errors.
(bpstat_check_breakpoint_conditions): Use TRY/CATCH instead of
catch_errors. Reverse logic of watchpoint_check call.
(breakpoint_re_set_one): Now returns void and takes a breakpoint
pointer as parameter.
(breakpoint_re_set): Use TRY/CATCH instead of catch_errors.
* common/common-exceptions.c (throw_exception_sjlj): Update
comments to avoid mentioning catch_errors.
* exceptions.c (catch_errors): Delete.
* exceptions.h: Update comments to avoid mentioning catch_errors.
(catch_errors_ftype, catch_errors): Delete.
* infrun.c (normal_stop): Use TRY/CATCH instead of catch_errors.
(hook_stop_stub): Delete.
(restore_selected_frame): Change return type to void, and
parameter type to const frame_id &.
(restore_infcall_control_state): Use TRY/CATCH instead of
catch_errors.
* main.c (captured_command_loop): Return void and remove
parameter. Remove references to catch_errors.
(captured_main): Use TRY/CATCH instead of catch_errors.
* objc-lang.c (objc_submethod_helper_data)
(find_objc_msgcall_submethod_helper): Delete.
(find_objc_msgcall_submethod): Use TRY/CATCH instead of
catch_errors.
* record-full.c (record_full_message): Return void.
(record_full_message_args, record_full_message_wrapper): Delete.
(record_full_message_wrapper_safe): Return bool and use TRY/CATCH
instead of catch_errors.
* solib-aix.c (solib_aix_open_symbol_file_object): Change
parameter type to int.
* solib-darwin.c (open_symbol_file_object): Ditto.
* solib-dsbt.c (open_symbol_file_object): Ditto.
* solib-frv.c (open_symbol_file_object): Ditto.
* solib-svr4.c (open_symbol_file_object): Ditto.
* solib-target.c (solib_target_open_symbol_file_object): Ditto.
* solib.c (update_solib_list): Use TRY/CATCH instead of
catch_errors.
* solist.h (struct target_so_ops) <open_symbol_file_object>:
Change type.
* symmisc.c (struct print_symbol_args): Remove.
(dump_symtab_1): Use TRY/CATCH instead of catch_errors.
(print_symbol): Change type.
* windows-nat.c (handle_load_dll, handle_unload_dll): Return void
and remove parameters.
(catch_errors): New.
(get_windows_debug_event): Adjust.
gdb/testsuite/ChangeLog:
2017-10-10 Pedro Alves <palves@redhat.com>
* lib/selftest-support.exp (selftest_setup): Update for
captured_command_loop's prototype change.
This patch changes most sites calling tilde_expand to use
gdb::unique_xmalloc_ptr, rather than a cleanup. It also changes
scan_expression_with_cleanup to return a unique pointer, because the
patch was already touching code in that area.
Regression tested on the buildbot.
ChangeLog
2017-08-05 Tom Tromey <tom@tromey.com>
* compile/compile-object-load.c (compile_object_load): Use
gdb::unique_xmalloc_ptr.
* cli/cli-dump.c (scan_filename): Rename from
scan_filename_with_cleanup. Change return type.
(scan_expression): Rename from scan_expression_with_cleanup.
Change return type.
(dump_memory_to_file, dump_value_to_file, restore_command):
Use gdb::unique_xmalloc_ptr. Update.
* cli/cli-cmds.c (find_and_open_script): Use
gdb::unique_xmalloc_ptr.
* tracefile-tfile.c (tfile_open): Use gdb::unique_xmalloc_ptr.
* symmisc.c (maintenance_print_symbols)
(maintenance_print_msymbols): Use gdb::unique_xmalloc_ptr.
* symfile.c (symfile_bfd_open, generic_load)
(add_symbol_file_command, remove_symbol_file_command): Use
gdb::unique_xmalloc_ptr.
* source.c (openp): Use gdb::unique_xmalloc_ptr.
* psymtab.c (maintenance_print_psymbols): Use
gdb::unique_xmalloc_ptr.
* corelow.c (core_open): Use gdb::unique_xmalloc_ptr.
* breakpoint.c (save_breakpoints): Use gdb::unique_xmalloc_ptr.
* solib.c (solib_map_sections): Use gdb::unique_xmalloc_ptr.
(reload_shared_libraries_1): Likewise.
This introduces ui_out_emit_table, similar to the other existing
ui_out RAII classes, and then uses it in a number of places. This
replaces some cleanups.
ChangeLog
2017-08-03 Tom Tromey <tom@tromey.com>
* tracepoint.c (tvariables_info_1): Use ui_out_emit_table.
(info_static_tracepoint_markers_command): Likewise.
* solib.c (info_sharedlibrary_command): Use ui_out_emit_table.
* skip.c (skip_info): Use ui_out_emit_table.
* progspace.c (print_program_space): Use ui_out_emit_table.
* osdata.c (info_osdata): Use ui_out_emit_table.
* mi/mi-cmd-info.c (mi_cmd_info_ada_exceptions): Use
ui_out_emit_table.
* linux-thread-db.c (info_auto_load_libthread_db): Use
ui_out_emit_table.
* inferior.c (print_inferior): Use ui_out_emit_table.
* gdb_bfd.c (maintenance_info_bfds): Use ui_out_emit_table.
* breakpoint.c (breakpoint_1): Use ui_out_emit_table.
* auto-load.c (auto_load_info_scripts): Use ui_out_emit_table.
* ada-tasks.c (print_ada_task_info): Use ui_out_emit_table.
* ui-out.h (class ui_out_emit_table): New.
As part of the preparation necessary for my upcoming task, I'd like to
propose that we turn gdb_environ into a class. The approach taken
here is simple: the class gdb_environ contains everything that is
needed to manipulate the environment variables. These variables are
stored in an std::vector<char *>, which can be converted to a 'char
**' and passed as argument to functions that need it.
The usage has not changed much. As per Pedro's suggestion, this class
uses a static factory method initialization. This means that when an
instance is created, it is initially empty. When needed, it has to be
initialized using the static method 'from_host_environ'.
As mentioned before, this is a preparation for an upcoming work that I
will be posting in the next few weeks or so. For that work, I'll
probably create another data structure that will contain all the
environment variables that were set by the user using the 'set
environment' command, because I'll need access to them. This will be
much easier with the class-ification of gdb_environ.
As noted, this has been regression-tested with the new version of
environ.exp and no regressions were found.
gdb/ChangeLog:
2017-06-20 Sergio Durigan Junior <sergiodj@redhat.com>
* Makefile.in (SUBDIR_UNITTESTS_SRCS): Add
'unittests/environ-selftests.c'.
(SUBDIR_UNITTESTS_OBS): Add 'environ-selftests.o'.
* charset.c (find_charset_names): Declare object 'iconv_env'.
Update code to use 'iconv_env' object. Remove call to
'free_environ'.
* common/environ.c: Include <utility>.
(make_environ): Delete function.
(free_environ): Delete function.
(gdb_environ::clear): New function.
(gdb_environ::operator=): New function.
(gdb_environ::get): Likewise.
(environ_vector): Delete function.
(set_in_environ): Delete function.
(gdb_environ::set): New function.
(unset_in_environ): Delete function.
(gdb_environ::unset): New function.
(gdb_environ::envp): Likewise.
* common/environ.h: Include <vector>.
(struct gdb_environ): Delete; transform into...
(class gdb_environ): ... this class.
(free_environ): Delete prototype.
(init_environ, get_in_environ, set_in_environ, unset_in_environ,
environ_vector): Likewise.
* infcmd.c (run_command_1): Update code to call
'envp' from 'gdb_environ' class.
(environment_info): Update code to call methods from 'gdb_environ'
class.
(unset_environment_command): Likewise.
(path_info): Likewise.
(path_command): Likewise.
* inferior.c (inferior::~inferior): Delete call to 'free_environ'.
(inferior::inferior): Initialize 'environment' using the host's
information.
* inferior.h: Remove forward declaration of 'struct gdb_environ'.
Include "environ.h".
(class inferior) <environment>: Change type from 'struct
gdb_environ' to 'gdb_environ'.
* mi/mi-cmd-env.c (mi_cmd_env_path): Update code to call
methods from 'gdb_environ' class.
* solib.c (solib_find_1): Likewise
* unittests/environ-selftests.c: New file.
gdb/gdbserver/ChangeLog:
2017-06-20 Sergio Durigan Junior <sergiodj@redhat.com>
* linux-low.c (linux_create_inferior): Adjust code to access the
environment information via 'gdb_environ' class.
* lynx-low.c (lynx_create_inferior): Likewise.
* server.c (our_environ): Make it an instance of 'gdb_environ'.
(get_environ): Return a pointer to 'our_environ'.
(captured_main): Initialize 'our_environ'.
* server.h (get_environ): Adjust prototype.
* spu-low.c (spu_create_inferior): Adjust code to access the
environment information via 'gdb_environ' class.
Tom de Vries