Gary Benson <gbenson@redhat.com>
* lib/gdb.exp (build_executable_from_specs): Use gdb_compile_pthread,
gdb_compile_shlib or gdb_compile_shlib_pthreads where appropriate.
* lib/prelink-support.exp (build_executable_own_libs): Allow INTERP
to be set to "no" to indicate that no ld.so copy should be made.
* gdb.base/break-interp.exp (solib_bp): New constant.
(reach_1): Use the above instead of "_dl_debug_state".
(test_attach): Likewise.
(test_ld): Likewise.
* gdb.threads/dlopen-libpthread.exp: New file.
* gdb.threads/dlopen-libpthread.c: Likewise.
* gdb.threads/dlopen-libpthread-lib.c: Likewise.
* gdb.base/solib-corrupted.exp: Disable test if GDB is using probes.
* breakpoint.h (handle_solib_event): Moved function declaration
to solib.h.
* breakpoint.c (handle_solib_event): Moved function to solib.c.
(bpstat_stop_status): Pass new argument to handle_solib_event.
* solib.h (update_solib_breakpoints): New function declaration.
(handle_solib_event): Moved function declaration from
breakpoint.h.
* solib.c (update_solib_breakpoints): New function.
(handle_solib_event): Moved function from breakpoint.c.
Updated to call solib_ops->handle_event if not NULL.
* solist.h (target_so_ops): New fields "update_breakpoints" and
"handle_event".
* infrun.c (set_stop_on_solib_events): New function.
(_initialize_infrun): Use the above for "set
stop-on-solib-events".
(handle_inferior_event): Pass new argument to handle_solib_event.
* solib-svr4.c (probe.h): New include.
(svr4_free_library_list): New forward declaration.
(probe_action): New enum.
(probe_info): New struct.
(probe_info): New static variable.
(NUM_PROBES): New definition.
(svr4_info): New fields "using_xfer", "probes_table" and
"solib_list".
(free_probes_table): New function.
(free_solib_list): New function.
(svr4_pspace_data_cleanup): Free probes table and solib list.
(svr4_copy_library_list): New function.
(svr4_current_sos_via_xfer_libraries): New parameter "annex".
(svr4_read_so_list): New parameter "prev_lm".
(svr4_current_sos_direct): Renamed from "svr4_current_sos".
(svr4_current_sos): New function.
(probe_and_action): New struct.
(hash_probe_and_action): New function.
(equal_probe_and_action): Likewise.
(register_solib_event_probe): Likewise.
(solib_event_probe_at): Likewise.
(solib_event_probe_action): Likewise.
(solist_update_full): Likewise.
(solist_update_incremental): Likewise.
(disable_probes_interface_cleanup): Likewise.
(svr4_handle_solib_event): Likewise.
(svr4_update_solib_event_breakpoint): Likewise.
(svr4_update_solib_event_breakpoints): Likewise.
(svr4_create_solib_event_breakpoints): Likewise.
(enable_break): Free probes table before creating breakpoints.
Use svr4_create_solib_event_breakpoints to create breakpoints.
(svr4_solib_create_inferior_hook): Free the solib list.
(_initialize_svr4_solib): Initialise
svr4_so_ops.handle_solib_event and svr4_so_ops.update_breakpoints.
* target.h (target_ops): New field
"to_augmented_libraries_svr4_read".
(target_augmented_libraries_svr4_read): New macro.
* target.c (update_current_target): Handle
to_augmented_libraries_svr4_read.
* remote.c (remote_state): New field
"augmented_libraries_svr4_read".
(remote_augmented_libraries_svr4_read_feature): New function.
(remote_protocol_features): Add entry for
"augmented-libraries-svr4-read".
(remote_augmented_libraries_svr4_read): New function.
(init_remote_ops): Initialize
remote_ops.to_augmented_libraries_svr4_read.
* gdb.texinfo (General Query Packets/qSupported): Added
"qXfer:libraries-svr4:read" and "augmented-libraries-svr4-read".
to the table of currently defined stub features.
Added a more detailed entry for "augmented-libraries-svr4-read".
(General Query Packets/qXfer:libraries-svr4:read): Documented
the augmented form of this packet.
* objfiles.h (inhibit_section_map_updates): New function
declaration.
(resume_section_map_updates): Likewise.
(resume_section_map_updates_cleanup): Likewise.
* objfiles.c (objfile_pspace_info): Removed field
"objfiles_changed_p". New fields "new_objfiles_available",
"section_map_dirty" and "inhibit_updates".
(allocate_objfile): Set new_objfiles_available.
(free_objfile): Set section_map_dirty.
(objfile_relocate1): Likewise.
(in_plt_section): Likewise.
(find_pc_section): Update the conditions under which the
section map will be updated.
(inhibit_section_map_updates): New function.
(resume_section_map_updates): Likewise.
(resume_section_map_updates_cleanup): Likewise.
* probe.h (get_probe_argument_count): New declaration.
(evaluate_probe_argument): Likewise.
* probe.c (get_probe_argument_count): New function.
(evaluate_probe_argument): Likewise.
(probe_safe_evaluate_at_pc): Use the above new functions.
* rs6000-tdep.c (read_insn): Add frame param, don't assume big-endian.
(ppc_insns_match_pattern): Add frame param. Avoid multiple
target mem reads on optional insns.
* ppc-linux-tdep.c (ppc_skip_trampoline_code): Update
ppc_insns_match_pattern calls.
* ppc64-tdep.c (ppc64_standard_linkage2, ppc64_standard_linkage3):
Add match for power7 thread safety insns, and new order of
std 2,40(1) insn. Correct code shown for _dl_runtime_resolve
invocation in comment, and update rest of comment.
(PPC64_STANDARD_LINKAGE1_LEN, PPC64_STANDARD_LINKAGE2_LEN,
PPC64_STANDARD_LINKAGE3_LEN): Delete.
(ppc64_standard_linkage2_target): Update insn offsets.
(ppc64_skip_trampoline_code): Use a single insn buffer. Match newer
stubs first. Update calls.
This patch indirectly causes a SEGV by creating a dangling pointer.
Reverting this patch while working on a clearer memory management
method for this part of the code.
gdb/Changelog:
Revert:
* machoread.c (macho_symfile_read): Assign first cleanup to
'back_to'.
* mi/mi-cmd-var.c (mi_no_values, mi_simple_values): Move to
mi-parse.c. Make them static.
(mi_all_values): Likewise.
(mi_parse_values_option): Move to mi-parse.c. Rename it to
mi_parse_print_values. Make it external.
* mi/mi-cmds.h (mi_no_values, mi_simple_values, mi_all_values):
Remove the declarations.
* mi/mi-parse.c (mi_parse_print_values): Moved from mi-cmd-var.c.
* mi/mi-parse.h (mi_parse_print_values): Declare.
* mi/mi-cmd-stack.c: Include mi-parse.h.
(parse_print_values): Remove
(mi_cmd_stack_list_locals): Call mi_parse_print_values instead
of parse_print_values.
(mi_cmd_stack_list_args, mi_cmd_stack_list_variables): Likewise.
Sriraman Tallam <tmsriram@google.com>
* options.h (sort_section): New option.
* output.h (Input_section_sort_section_prefix_special_ordering_compare):
Rename from Input_section_sort_section_name_special_ordering_compare.
(Input_section_sort_section_name_compare): New struct.
* output.cc (Output_section::Input_section_sort_section_name_compare::
operator()): New function.
(Output_section::sort_attached_input_sections): Use new sort function
for .text if --sort-section=name is specified.
* layout.cc (Layout::make_output_section):
Add sorting by name when --sort-section=name is specified.
* testsuite/Makefile.am (text_section_grouping): Test option
--sort-section=name.
* testsuite/Makefile.in: Regenerate.
* testsuite/section_sorting_name.cc: New file.
* testsuite/section_sorting_name.sh: New file.
It turns out that maintenance_expand_symtabs was missing a call to
do_cleanups. I found this using the cleanup checker.
* symmisc.c (maintenance_expand_symtabs): Call do_cleanups.
xml-support.c has a function that returns a cleanup via an out parameter.
This changes this function to be a normal cleanup constructor --
returning the cleanup directly and returning the other result via an
out parameter.
This is sort of a hack, but it lets the checker work here.
I also noticed that gdb_xml_create_parser_and_cleanup does not need to
be exported any more.
* xml-support.c (gdb_xml_create_parser_and_cleanup): Rename from
gdb_xml_create_parser_and_cleanup_1. Return a cleanup. Remove
'old_chain' argument. Add 'parser_result' argument.
(gdb_xml_create_parser_and_cleanup): Remove old version.
(gdb_xml_parse_quick): Update.
(xml_process_xincludes): Update.
* xml-support.h (gdb_xml_create_parser_and_cleanup): Don't
declare.
compile_rx_or_error looks like a constructor, but it can return NULL.
This patch changes it to remove the NULL return, making it work
like any other cleanup constructor.
This is a stylistic patch but I think it is also better for code to
follow the normal conventions.
* probe.c (collect_probes): Check arguments for NULL before
calling compile_rx_or_error.
* utils.c (compile_rx_or_error): Require 'rx' to be non-NULL.
Remove NULL return.
This fixes some of the problems in infrun.c that the checker reported.
I filed the remaining problems as bugs.
This patch is purely stylistic.
* infrun.c (adjust_pc_after_break): Introduce an outer null
cleanup.
This is a stylistic change in mi-cmd-var.c that adds outer cleanups
where needed by the checker.
* mi/mi-cmd-var.c (varobj_update_one): Add an outer null cleanup.
read_command_lines_1 had some (IMNSHO) spaghetti-ish code for cleanup
handling. This makes the code much simpler to understand, by
introducing an outer cleanup.
This is another case where a stylistic change for the checker is also
nice for the reader.
* cli/cli-script.c (read_command_lines_1): Use a null cleanup
for 'old_chain'. Do not check 'head' before processing
cleanups.
mi-cmd-stack.d had a conditional cleanup, "cleanup_tuple" that
confused the checker. However, there was no need for this, since it
was only used via do_cleanups at the end of the function, just before
another call to do_cleanups.
So, while this is a stylistic patch for the checker, I also consider
it a generic improvement for readers of the code.
* mi/mi-cmd-stack.c (list_arg_or_local): Remove
"cleanup_tuple".
This is a stylistic change to make some code in dbxread.c analyzable
by the checker.
* dbxread.c (dbx_read_symtab): Declare 'back_to' in a more
inner scope. Unconditionally call do_cleanups.
This is a stylistic change to make it so the checker can analyze a
function in linux-thread-db.c.
* linux-thread-db.c (thread_db_load_search): Unconditionally
call do_cleanups.
solib_aix_bfd_open has an early "return" that doesn't run cleanups.
This fixes the problem by dropping the null_cleanup and using a later
cleanup as the master cleanup for the function.
* solib-aix.c (solib_aix_bfd_open): Don't use a null cleanup
for 'cleanup'; instead use a later one.
The checker does not understand the idiom
if (except.reason < 0) {
do_cleanups (whatever);
GDB_PY_HANDLE_EXCEPTION (except);
}
because it doesn't realize that the nested 'if' actually has the same
condition.
This fixes instances of this to be more explicit.
* python/py-breakpoint.c (bppy_get_commands): Use
explicit, unconditional return.
* python/py-frame.c (frapy_read_var): Likewise.
* python/python.c (gdbpy_decode_line): Likewise.
cp_lookup_symbol_imports_or_template could return without
running cleanups.
* cp-namespace.c (cp_lookup_symbol_imports_or_template): Call
do_cleanups on all return paths.
Some code in mipsread.c could leak cleanups along some return paths.
* mipsread.c (read_alphacoff_dynamic_symtab): Call do_cleanups
along all return paths.
find_separate_debug_file could leak a cleanup along some return paths.
* symfile.c (find_separate_debug_file): Call do_cleanups
along all return paths.
