While reviewing the native AArch64 patch, I noticed a problem:
On 02/06/2013 08:46 PM, Pedro Alves wrote:
>
>> > +static void
>> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp)
>> > +{
>> > + struct arch_lwp_info *info = lwp->arch_private;
>> > +
>> > + /* NULL means this is the main thread still going through the shell,
>> > + or, no watchpoint has been set yet. In that case, there's
>> > + nothing to do. */
>> > + if (info == NULL)
>> > + return;
>> > +
>> > + if (DR_HAS_CHANGED (info->dr_changed_bp)
>> > + || DR_HAS_CHANGED (info->dr_changed_wp))
>> > + {
>> > + int tid = GET_LWP (lwp->ptid);
>> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state ();
> Hmm. This is always fetching the debug_reg_state of
> the current inferior, but may not be the inferior of lwp.
> I see the same bug on x86. Sorry about that. I'll fix it.
A natural fix would be to make xxx_get_debug_reg_state take an
inferior argument, but that doesn't work because of the case where we
detach breakpoints/watchpoints from the child fork, at a time there's
no inferior for the child fork at all. We do a nasty hack in
i386_inferior_data_get, but that relies on all callers pointing the
current inferior to the correct inferior, which isn't actually being
done by all callers, and I don't think we want to enforce that -- deep
in the bowls of linux-nat.c, there are many cases we resume lwps
behind the scenes, and it's be better to not have that code rely on
global state (as it doesn't today).
The fix is to decouple the watchpoints code from inferiors, making it
track target processes instead. This way, we can freely keep track of
the watchpoint mirrors for these processes behind the core's back.
Checkpoints also play dirty tricks with swapping the process behind
the inferior, so they get special treatment too in the patch (which
just amounts to calling a new hook). Instead of the old hack in
i386_inferior_data_get, where we returned a copy of the current
inferior's debug registers mirror, as soon as we detect a fork in the
target, we copy the debug register mirror from the parent to the child
process.
I don't have an old kernel handy to test, but I stepped through gdb doing
the watchpoint removal in the fork child in the watchpoint-fork test
seeing that the debug registers end up cleared in the child.
I didn't find the need for linux_nat_iterate_watchpoint_lwps. If
we use plain iterate_over_lwps instead, what happens is that
when removing watchpoints, that iterate_over_lwps doesn't actually
iterate over anything, since the fork child is not added to the
lwp list until later, at detach time, in linux_child_follow_fork.
And if we don't iterate over that lwp, we don't mark its debug
registers as needing update. But linux_child_follow_fork takes
care of doing that explicitly:
child_lp = add_lwp (inferior_ptid);
child_lp->stopped = 1;
child_lp->last_resume_kind = resume_stop;
make_cleanup (delete_lwp_cleanup, child_lp);
/* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it.
See i386_inferior_data_get for the Linux kernel specifics.
Ensure linux_nat_prepare_to_resume will reset the hardware debug
registers. It is done by the linux_nat_new_thread call, which is
being skipped in add_lwp above for the first lwp of a pid. */
gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1);
if (linux_nat_new_thread != NULL)
linux_nat_new_thread (child_lp);
if (linux_nat_prepare_to_resume != NULL)
linux_nat_prepare_to_resume (child_lp);
ptrace (PTRACE_DETACH, child_pid, 0, 0);
so unless I'm missing something (quite possible) it ends up all
the same. But, the !detach-on-fork, and the "follow-fork child" paths
should also call linux_nat_new_thread, and they don't presently. It
seems to me in those cases we're not clearing debug regs correctly
when that's needed. Instead of copying that bit that works around
add_lwp bypassing the linux_nat_new_thread call, I thought it'd
be better to add an add_initial_lwp call to be used in the case we
really need to bypass linux_nat_new_thread, and make
add_lwp always call linux_nat_new_thread.
i386_cleanup_dregs is rewritten to forget about the current process
debug mirrors, which takes cares of other i386 ports. Only a couple
of extra tweaks here and there were needed, as some targets wheren't
actually calling i386_cleanup_dregs.
Tested on Fedora 17 x86_64 -m64/-m32.
GDBserver already fetches the i386_debug_reg_state from the right
process, and, it doesn't handle forks at all, so no fix is needed over
there.
gdb/
2013-02-13 Pedro Alves <palves@redhat.com>
* amd64-linux-nat.c (update_debug_registers_callback):
Update comment.
(amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use
iterate_over_lwps.
(amd64_linux_prepare_to_resume): Pass the lwp's pid to
i386_debug_reg_state.
(amd64_linux_new_fork): New function.
(_initialize_amd64_linux_nat): Install amd64_linux_new_fork as
linux_nat_new_fork hook, and i386_forget_process as
linux_nat_forget_process hook.
* i386-linux-nat.c (update_debug_registers_callback):
Update comment.
(amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use
iterate_over_lwps.
(i386_linux_prepare_to_resume): Pass the lwp's pid to
i386_debug_reg_state.
(i386_linux_new_fork): New function.
(_initialize_i386_linux_nat): Install i386_linux_new_fork as
linux_nat_new_fork hook, and i386_forget_process as
linux_nat_forget_process hook.
* i386-nat.c (i386_init_dregs): Delete.
(i386_inferior_data, struct i386_inferior_data):
Delete.
(struct i386_process_info): New.
(i386_process_list): New global.
(i386_find_process_pid, i386_add_process, i386_process_info_get):
New functions.
(i386_inferior_data_get): Delete.
(i386_process_info_get): New function.
(i386_debug_reg_state): New parameter 'pid'. Reimplement.
(i386_forget_process): New function.
(i386_cleanup_dregs): Rewrite.
(i386_update_inferior_debug_regs, i386_insert_watchpoint)
(i386_remove_watchpoint, i386_region_ok_for_watchpoint)
(i386_stopped_data_address, i386_insert_hw_breakpoint)
(i386_remove_hw_breakpoint): Adjust to pass the current process id
to i386_debug_reg_state.
(i386_use_watchpoints): Don't register inferior data.
* i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and
adjust comment.
(i386_forget_process): Declare.
* linux-fork.c (delete_fork): Call linux_nat_forget_process.
* linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook):
New static globals.
(linux_child_follow_fork): Don't call linux_nat_new_thread here.
(add_initial_lwp): New, factored out from ...
(add_lwp): ... this. Don't check the number of lwps before
calling linux_nat_new_thread.
(linux_nat_iterate_watchpoint_lwps): Delete.
(linux_nat_attach): Use add_initial_lwp instead of add_lwp.
(linux_handle_extended_wait): Call the linux_nat_new_fork hook on
forks and vforks.
(linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the
initial lwp.
(linux_nat_kill, linux_nat_mourn_inferior): Call
linux_nat_forget_process.
(linux_nat_set_new_fork, linux_nat_set_forget_process)
(linux_nat_forget_process): New functions.
* linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete
type.
(linux_nat_iterate_watchpoint_lwps): Delete declaration.
(linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New
types.
(linux_nat_set_new_fork, linux_nat_set_forget_process)
(linux_nat_forget_process): New declarations.
* amd64fbsd-nat.c (super_mourn_inferior): New global.
(amd64fbsd_mourn_inferior): New function.
(_initialize_amd64fbsd_nat): Override to_mourn_inferior.
* windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 Marcus Shawcroft <marcus.shawcroft@arm.com>
* aarch64-linux-nat.c (debug_reg_change_callback)
(aarch64_linux_get_debug_reg_capacity): ARI fix: Replace %llx with
%s and phex().
* c-exp.y (lex_one_token): Initialize other fields of yylval on
NAME return.
(classify_inner_name): Remove 'first_name' argument, add
'context'. Remove unused variable.
(yylex): Explicitly maintain the context type. Exit loop earlier
if NAME result is seen.
gdb/testsuite
* gdb.cp/m-static.cc (gnu_obj_1::~gnu_obj_1): New destructor.
* gdb.cp/m-static.exp: Add tests to print quoted destructor.
Some files managed to get in the tree with outdated copyright years.
This fixes it. Applied.
gdb/
2013-02-12 Pedro Alves <palves@redhat.com>
* break-catch-sig.c: Update copyright years.
gdb/testsuite/
2013-02-12 Pedro Alves <palves@redhat.com>
* gdb.base/catch-signal.c: Update copyright years.
* gdb.base/catch-signal.exp: Update copyright years.
* gdb.dwarf2/dw2-dir-file-name.c: Update copyright years.
* gdb.dwarf2/dw2-dir-file-name.exp: Update copyright years.
* gdb.dwarf2/dw2-empty-pc-range.S: Update copyright years.
* gdb.dwarf2/dw2-error.S: Update copyright years.
* gdb.dwarf2/dw2-error.c: Update copyright years.
* gdb.dwarf2/dw2-restrict.S: Update copyright years.
* gdb.dwarf2/dw2-restrict.c: Update copyright years.
* gdb.dwarf2/dw2-restrict.exp: Update copyright years.
provide a ui_out destructor.
* ui-out.h: Declare the new ui_out destructor.
(ui_out_impl): Add a field for data destructor in ui_out_impl.
* ui-out.c (default_data_destroy): Add a default data destructor
which does nothing.
(default_ui_out_impl): Set the new data_destroy field to
default_data_destroy
(uo_data_destroy): Local function which invokes the data
destructor if present.
(clear_table): Local function which clears the table data of a
ui_out object.
(ui_out_destroy): Public function which frees a ui_out object.
(ui_out_table_end): Use the new clear_table function.
* cli-out.c (cli_ui_out_impl): Set the new data_destroy field to
NULL.
* mi/mi-out.c (mi_ui_out_impl): Set the new data_destroy field
to NULL.
(printf_decfloat): New function. Broken out from ui_printf.
Remove unnecessary code to shift the entire format string down.
(printf_pointer): New function.
(ui_printf): Code to print C strings, wide C strings, decfloats,
and pointers moved to separate functions.
2013-02-08 Yufeng Zhang <yufeng.zhang@arm.com>
* aarch64-linux-tdep.c (AARCH64_LINUX_SIZEOF_GREGSET): Change the
number of the registers from 36 to 34.
gdb/
* sparc-tdep.c (sparc32_return_value): Handle writing return value when
using RETURN_VALUE_ABI_PRESERVES_ADDRESS.
* value.c (struct_return_convention): New function.
(using_struct_return): Implement in terms of struct_return_convention.
* value.h (struct_return_convention): Declare.
* stack.c (return_command): Allow successful overriding of the return
value when RETURN_VALUE_ABI_PRESERVES_ADDRESS.
2013-02-06 Yao Qi <yao@codesourcery.com>
* gdb.texinfo (GDB/MI Async Records): Document new MI
notification "=tsv-modified". Update the document of MI
notification "=tsv-created".
* observer.texi (GDB Observers): New observer tsv_modified.
Update observer tsv_created and tsv_deleted.
gdb:
2013-02-06 Yao Qi <yao@codesourcery.com>
* mi/mi-interp.c: Include "tracepoint.h".
(mi_tsv_modified): Declare.
(mi_tsv_created, mi_tsv_deleted): Update declaration.
(mi_interpreter_init): Call observer_attach_tsv_modified.
(mi_tsv_modified): New.
(mi_tsv_created, mi_tsv_deleted): Update.
* tracepoint.c (trace_variable_command): Call
observer_notify_tsv_modified if the initial value of tsv is
changed.
(delete_trace_state_variable): Call
observer_notify_tsv_deleted earlier.
(trace_variable_command): Caller update.
(create_tsv_from_upload): Likewise.
* observer.sh: Declare "struct trace_state_variable".
* NEWS: Mention the new MI notification "=tsv-modified".
gdb/testsuite:
2013-02-06 Yao Qi <yao@codesourcery.com>
* gdb.trace/mi-tsv-changed.exp (test_create_delete_tsv): Rename
to ...
(test_create_delete_modify_tsv): ... here. New test on modifying
the initial value of a tsv.
Denys Vlasenko <dvlasenk@redhat.com>
Pedro Alves <palves@redhat.com>
* gdbarch.sh (elfcore_write_linux_prpsinfo): New F hook.
(struct elf_internal_linux_prpsinfo): Forward declare.
* gdbarch.h, gdbarch.c: Regenerate.
* linux-tdep.c: Include `cli/cli-utils.h'.
(linux_fill_prpsinfo): New function.
(linux_make_corefile_notes): Use linux_fill_prpsinfo. If there's
an elfcore_write_linux_prpsinfo hook, use it, otherwise, use
elfcore_write_linux_prpsinfo32 or elfcore_write_linux_prpsinfo64
depending on gdbarch pointer bitness.
* ppc-linux-tdep.c: Include elf-bfd.h.
(ppc_linux_init_abi): Hook in elfcore_write_ppc_linux_prpsinfo32
on 32-bit.
* dwarf2read.c (file_file_name): New function with code from
file_full_name.
(file_full_name): Move most of the code to file_file_name.
(macro_start_file): Rename variable full_name to file_name and use
file_file_name for it. Add comp_dir parameter to new_macro_table.
* macrocmd.c (show_pp_source_pos): New variable fullname. Replace any
macro_source_file->filename access by macro_source_fullname call.
* macroscope.c (_initialize_macroscope): Update the new_macro_table
caller.
* macrotab.c (struct macro_table): New field comp_dir.
(macro_include): New variables link_fullname and source_fullname.
Replace any macro_source_file->filename access by macro_source_fullname
call.
(macro_lookup_inclusion): Remove the partial filenames checking code.
(check_for_redefinition): New variables source_fullname and
found_key_fullname. Replace any macro_source_file->filename access by
macro_source_fullname call.
(macro_undef): New variables source_fullname and key_fullname. Replace
any macro_source_file->filename access by macro_source_fullname call.
(macro_lookup_definition): New variables retval and source_fullname.
Replace any macro_source_file->filename access by macro_source_fullname
call.
(foreach_macro): New variable key_fullname. Replace any
macro_source_file->filename access by macro_source_fullname call.
(foreach_macro_in_scope): New variable datum_fullname. Replace any
macro_source_file->filename access by macro_source_fullname call.
(new_macro_table): Add parameter comp_dir. Initialize T with it.
(macro_source_fullname): New function.
* macrotab.h (struct macro_source_file): Extent the filename field
comment.
(new_macro_table): New parameter comp_dir, add a comment for it.
(macro_source_fullname): new declaration.
gdb/testsuite/
* gdb.linespec/base/one/header.h: New file.
* gdb.linespec/base/two/header.h: New file.
* gdb.linespec/macro-relative.c: New file.
* gdb.linespec/macro-relative.exp: New file.
* dwarf2read.c (dw2_map_symtabs_matching_filename): Move variable
this_real_name to outer block. Use it also for
compare_filenames_for_search.
(dw2_expand_symtabs_matching): New variable this_real_name. Use it
with dw2_get_real_path for file_matcher, considering also
BASENAMES_MAY_DIFFER.
(file_full_name): Prepend COMP_DIR even for relative lh->INCLUDE_DIRS.
* dwarf2read.c (dw2_expand_symtabs_matching): Add basenames parameter
to the file_matcher parameter. Pass 0 to it.
(dwarf2_create_include_psymtab): Copy also DIRNAME.
* psymtab.c (partial_map_symtabs_matching_filename): Drop handling of
NULL psymtab_to_fullname result.
(psymtab_to_fullname): Remove variable r. Never return NULL, assemble
an expected filename instead.
(expand_symtabs_matching_via_partial): Add basenames parameter to the
file_matcher parameter. Call also psymtab_to_fullname, after newly
considering BASENAMES_MAY_DIFFER.
* source.c (rewrite_source_path): Remove static.
* source.h (rewrite_source_path): New declaration.
* symfile.h (struct quick_symbol_functions): Add basenames parameter to
the expand_symtabs_matching field. Comment it.
* symtab.c (file_matches): New function comment. Add parameter
basenames, implement it.
(search_symbols_file_matches): Add basenames parameter. Update the
file_matches caller.
(search_symbols): Match FILES also against symtab_to_fullname.
Optimize it for BASENAMES_MAY_DIFFER.
gdb/testsuite/
* gdb.base/fullpath-expand-func.c: New file.
* gdb.base/fullpath-expand.c: New file.
* gdb.base/fullpath-expand.exp: New file.
* gdb.base/realname-expand-real.c: New file.
* gdb.base/realname-expand.c: New file.
* gdb.base/realname-expand.exp: New file.
* source.c (print_source_lines_base): Print for TUI also "fullname".
* tui/tui-data.c (init_content_element): Change tui_locator_element
field to full_name.
* tui/tui-data.h (struct tui_locator_element): Likewise.
* tui/tui-disasm.c (tui_show_disassem_and_update_source): Rename
tui_update_locator_filename calls to tui_update_locator_fullname.
Replace symtab->filename refererence by symtab_to_fullname call.
* tui/tui-out.c (tui_field_string): Check for "fullname" now.
* tui/tui-source.c (tui_set_source_content): Change tui_locator_element
field to full_name. Replace symtab->filename refererence by
symtab_to_fullname call.
(tui_show_symtab_source): Rename parameter to fullname. Change
tui_locator_element field to full_name.
* tui/tui-stack.c: Include source.h.
(tui_set_locator_filename): Rename the declaration to ...
(tui_set_locator_fullname): ... here. Rename its parameter to
fullname, updates its comment.
(tui_set_locator_info): Rename its parameter to fullname.
(tui_set_locator_filename): Rename the definition to ...
(tui_set_locator_fullname): ... here. Rename its parameter to
fullname, updates its comment. Change tui_locator_element field to
full_name.
(tui_set_locator_info): Rename its parameter to fullname.
(tui_set_locator_info): Rename callee to tui_set_locator_fullname.
(tui_update_locator_filename): Rename to ...
(tui_update_locator_fullname): ... here. Rename callee to
tui_set_locator_fullname.
(tui_show_frame_info): Replace symtab->filename refererence by
symtab_to_fullname call.
* tui/tui-stack.h (tui_update_locator_filename): Rename to ...
(tui_update_locator_fullname): ... here.
* tui/tui-winsource.c (tui_display_main): Rename the callee to
tui_update_locator_fullname. Replace symtab->filename refererence by
symtab_to_fullname call.
* tui/tui.c (tui_show_source): Rename its parameter to fullname.
Rename the callee to tui_update_locator_fullname.
* tui/tui.h (tui_show_source): Rename its parameter to fullname.
* ada-lang.c (user_select_syms): Replace symtab->filename refererences
by symtab_to_filename_for_display calls.
* breakpoint.c (print_breakpoint_location, resolve_sal_pc): Likewise.
(clear_command): New variable sal_fullname, initialize it. Replace
compare_filenames_for_search by filename_cmp with sal_fullname.
(say_where, update_static_tracepoint): Replace symtab->filename
refererences by symtab_to_filename_for_display calls.
* cli/cli-cmds.c (edit_command, list_command, ambiguous_line_spec):
Likewise.
* dwarf2read.c: Include source.h.
(fixup_go_packaging): Replace symtab->filename refererences by
symtab_to_filename_for_display calls.
* linespec.c (add_sal_to_sals): Rename variable filename to fullname.
Replace symtab->filename refererences by symtab_to_filename_for_display
calls.
(create_sals_line_offset, convert_linespec_to_sals): New variable
fullname, initialize it, replace symtab->filename reference by the
variable.
* linux-fork.c: Include source.h.
(info_checkpoints_command): Replace symtab->filename refererences by
symtab_to_filename_for_display calls.
* macroscope.c (sal_macro_scope): Replace symtab->filename refererences
by symtab_to_filename_for_display calls.
* mdebugread.c: Include source.h.
(psymtab_to_symtab_1): Replace symtab->filename refererences by
symtab_to_filename_for_display calls.
* mi/mi-cmd-file.c (mi_cmd_file_list_exec_source_file)
(mi_cmd_file_list_exec_source_files): Likewise.
* printcmd.c: Include source.h.
(build_address_symbolic): Replace symtab->filename refererences by
symtab_to_filename_for_display calls.
* psymtab.c (partial_map_symtabs_matching_filename)
(read_psymtabs_with_fullname): Call compare_filenames_for_search also
with psymtab_to_fullname.
* python/py-symtab.c (stpy_str): Replace symtab->filename refererences
by symtab_to_filename_for_display calls.
(stpy_get_filename): New variable filename, initialize it, use instead
of symtab->filename refererences.
(salpy_str): Make variable filename const char *. Replace
symtab->filename refererences by symtab_to_filename_for_display calls.
* skip.c: Include source.h and filenames.h.
(skip_file_command): Remove const from the symtab variable. Replace
symtab->filename refererences by symtab_to_fullname call.
(function_name_is_marked_for_skip): New variables searched_for_fullname
and fullname. Use them to search also with symtab's fullname.
* source.c (find_source_lines): Replace symtab->filename refererences
by symtab_to_filename_for_display calls.
(print_source_lines_base): New variable filename, use it instead of
symtab->filename. Replace symtab->filename refererences by
symtab_to_filename_for_display calls.
(line_info, forward_search_command): Replace symtab->filename
refererences by symtab_to_filename_for_display calls.
(reverse_search_command): Replace symtab->filename refererences by
symtab_to_filename_for_display calls. New variable filename for it.
* stack.c (frame_info): Likewise.
* symmisc.c: Include source.h.
(dump_objfile, dump_symtab_1, maintenance_print_symbols)
(maintenance_info_symtabs): Replace symtab->filename refererences by
symtab_to_filename_for_display calls.
* symtab.c (iterate_over_some_symtabs): Call
compare_filenames_for_search also with symtab_to_fullname.
(lookup_symbol_aux_quick, basic_lookup_transparent_type_quick): Replace
symtab->filename refererences by symtab_to_filename_for_display calls.
(find_line_symtab): Replace symtab->filename refererences by
symtab_to_filename_for_display calls.
(file_matches): Replace filename_cmp by compare_filenames_for_search.
(print_symbol_info): Make the last parameter const char *. New
variable s_filename. Use it in the function.
(symtab_symbol_info): Make the last_filename variable const char *.
Replace symtab->filename refererences by symtab_to_filename_for_display
calls.
(rbreak_command): New variable fullname. Use it. Replace
symtab->filename refererence by symtab_to_filename_for_display call.
* tracepoint.c (set_traceframe_context, trace_find_line_command)
(print_one_static_tracepoint_marker): Replace symtab->filename
refererences by symtab_to_filename_for_display calls.
* tui/tui-source.c (tui_set_source_content): New variables filename and
s_filename. Replace symtab->filename refererences by this variable.
Replace other symtab->filename refererences by
symtab_to_filename_for_display calls.
Add a new variable that controls a way in which filenames are
displayed.
* NEWS (set filename-display): New entry.
* source.c (filename_display_basename, filename_display_relative)
(filename_display_absolute, filename_display_kind_names)
(filename_display_string, show_filename_display_string)
(symtab_to_filename_for_display): New.
(_initialize_source): Added initialization of 'filename-display'
variable.
* source.h (symtab_to_filename_for_display): Added declaration.
* stack.c (print_frame): Added new variable and calling of a new
function and condition with this variable. Changed third argument of
calling of a function.
gdb/doc/
* gdb.texinfo (Backtrace): Added description of 'filename-display'
variable in 'set/show backtrace' section.
gdb/testsuite/
* gdb.dwarf2/dw2-dir-file-name.exp: New file.
* gdb.dwarf2/dw2-dir-file-name.c: New file.
* tui/tui-data.c (init_win_info, tui_del_window, tui_free_window):
Rename field reference filename to fullname.
* tui/tui-data.h (struct tui_source_info): Rename field filename to
fullname. New comment for it.
* tui/tui-source.c (tui_set_source_content): Rename field reference
filename to fullname. Initialize field by symtab_to_fullname now.
* tui/tui-winsource.c (tui_update_breakpoint_info): Rename field
reference filename to fullname. Use symtab_to_fullname during
comparison.
Code cleanup.
* dwarf2read.c (dw2_expand_symtabs_with_filename): Rename to ...
(dw2_expand_symtabs_with_fullname): ... here. Rename parameter
filename to fullname. Rename variable this_name to this_fullname.
Lowercase FILENAME_CMP call.
(dw2_find_symbol_file): New comment for the returned string.
(dwarf2_gdb_index_functions): Rename the function to
dw2_expand_symtabs_with_fullname.
* psymtab.c (read_psymtabs_with_filename): Rename to ...
(read_psymtabs_with_fullname): ... here. Rename parameter filename to
fullname.
(psym_functions): Rename the function to read_psymtabs_with_fullname.
* symfile.h (struct quick_symbol_functions): Rename field
expand_symtabs_with_filename to expand_symtabs_with_fullname and its
parameter filename to fullname. Document returned string meaning for
find_symbol_file.
* symtab.c (find_line_symtab): Rename the called function to
expand_symtabs_with_fullname.
Code cleanup.
* breakpoint.c (clear_command): Remove variable is_abs, unify the
call of filename_cmp with compare_filenames_for_search.
* dwarf2read.c (dw2_map_symtabs_matching_filename): Remove variable
is_abs, unify the call of FILENAME_CMP with
compare_filenames_for_search. New gdb_asserts for real_path and name.
Unify the call of compare_filenames_for_search with FILENAME_CMP.
* psymtab.c (partial_map_symtabs_matching_filename): Likewise.
* symfile.h (struct quick_symbol_functions): Extend the comment for
map_symtabs_matching_filename.
* symtab.c (compare_filenames_for_search): Remove the function comment
relative path requirement. Handle absolute filenames, with a comment.
(iterate_over_some_symtabs): Remove variable is_abs, unify the call of
FILENAME_CMP with compare_filenames_for_search. New gdb_asserts for
real_path and name. Unify the call of compare_filenames_for_search
with FILENAME_CMP.
(iterate_over_symtabs): New gdb_assert on REAL_PATH.
gdb/testsuite/
* gdb.mi/mi-fullname-deleted.exp: Use double last slash for $srcfileabs.
(compare_filenames_for_search does not match)
(compare_filenames_for_search does match): New tests.
Code cleanup.
* breakpoint.c (print_breakpoint_location): Replace bp_location field
source_file references by symtab field references. Remove variables
sal and fullname.
(momentary_breakpoint_from_master, add_location_to_breakpoint):
(clear_command, say_where): Replace bp_location field source_file
references by symtab field references.
(bp_location_dtor): Remove the source_file reference.
(update_static_tracepoint): Replace bp_location field source_file
references by symtab field references.
(breakpoint_free_objfile): New function.
* breakpoint.h (struct bp_location): Extend the comment for line_number.
Replace the field source_file by field symtab, extend its comment.
(breakpoint_free_objfile): New declaration.
* objfiles.c (free_objfile): Call breakpoint_free_objfile.
* tui/tui-winsource.c (tui_update_breakpoint_info): Replace bp_location
field source_file references by symtab field references.
Replace xfullpath calls by gdb_realpath calls.
* cli/cli-cmds.c (find_and_open_script): Remove xfullpath from the
function comment.
* dwarf2read.c (dw2_map_expand_apply): Remove parameter full_path.
Remove it from the iterate_over_some_symtabs call.
(dw2_map_symtabs_matching_filename): Remove parameter full_path.
Remove it from the dw2_map_expand_apply calls, remove a block handling
it.
* psymtab.c (partial_map_expand_apply): Remove parameter full_path.
Remove it from the iterate_over_some_symtabs call.
(partial_map_symtabs_matching_filename): Remove parameter full_path.
Remove it from the partial_map_expand_apply calls, remove a block
handling it. Drop gdb_realpath call and cleanups from the real_path
handling.
* source.c (openp): Drop the comment part about xfullpath. Replace
xfullpath calls by gdb_realpath calls.
(find_and_open_source): Replace xfullpath call by gdb_realpath call.
* symfile.h (struct quick_symbol_functions): Remove parameter full_path
from method map_symtabs_matching_filename and its comment.
* symmisc.c (maintenance_print_msymbols): Replace xfullpath call by
gdb_realpath call.
* symtab.c (iterate_over_some_symtabs): Remove parameter full_path,
remove it also from the function comment, remove a block handling it.
Drop gdb_realpath call and cleanups from the real_path handling.
(iterate_over_symtabs): Drop variable full_path and its use.
* symtab.h (iterate_over_some_symtabs): Remove parameter full_path.
* utils.c (xfullpath): Remove.
* utils.h (xfullpath): Remove.
gdb/testsuite/
* gdb.gdb/xfullpath.exp: Replace xfullpath calls by gdb_realpath calls.
* Makefile.in (ALL_TARGET_OBS): Add ppc64-tdep.o.
(HFILES_NO_SRCDIR): Add ppc64-tdep.h.
(ALLDEPFILES): Add ppc64-tdep.c.
* configure.tgt (powerpc-*-linux* | powerpc64-*-linux*): Add
ppc64-tdep.o to gdb_target_obs.
* ppc64-tdep.h: New file.
* ppc64-tdep.c: New file.
(insn_d, insn_ds, insn_xfx, ppc64_desc_entry_point): Move from
ppc-linux-tdep.c to here.
(PPC64_STANDARD_LINKAGE1_LEN, PPC64_STANDARD_LINKAGE2_LEN)
(PPC64_STANDARD_LINKAGE2_LEN): Likewise and use ARRAY_SIZE macro.
(ppc64_standard_linkage1_target, ppc64_standard_linkage2_target)
(ppc64_standard_linkage3_target, ppc64_skip_trampoline_code): Move
from ppc-linux-tdep.c to here.
(ppc64_convert_from_func_ptr_addr): Rename from
ppc64_linux_convert_from_func_ptr_addr to
ppc64_convert_from_func_ptr_addr and move from ppc-linux-tdep.c to
here.
* rs6000-tdep.c:
(read_insn): Move from ppc-linux-tdep.c to here.
(insns_match_pattern, insn_d_field, insn_ds_field): Move
from ppc-linux-tdep.c to here and rename them with the ppc_ prefix.
* ppc-linux-tdep.c: Include ppc64-tdep.h.
Removed above functions.
(ppc_linux_init_abi): Adjust.
