* amd64-linux-tdep.c: Include xml-syscall.h header, define the XML
syscall name for the architecture.
(amd64_linux_get_syscall_number): New function.
(amd64_linux_init_abi): Register the correct functions for syscall
catchpoint; set the correct syscall file name.
* breakpoint.c: New include: xml-syscall.h.
(set_raw_breakpoint_without_location): Setting the parameters
for the catch syscall feature.
(insert_catch_syscall): New.
(remove_catch_syscall): New.
(breakpoint_hit_catch_syscall): New.
(print_it_catch_syscall): New.
(print_one_catch_syscall): New.
(print_mention_catch_syscall): New.
(catch_syscall_breakpoint_ops): New.
(syscall_catchpoint_p): New.
(create_catchpoint_without_mention): New.
(create_catchpoint): Modified in order to use
create_catchpoint_without_mention.
(create_syscall_event_catchpoint): New.
(clean_up_filters): New.
(catch_syscall_split_args): New.
(catch_syscall_command_1): New.
(delete_breakpoint): Add cleanup for catch syscall.
(is_syscall_catchpoint_enabled): New.
(catch_syscall_enabled): New.
(catching_syscall_number): New.
(catch_syscall_completer): New completer function.
(add_catch_command): Add the completer function for catchpoints.
* breakpoint.h (syscalls_to_be_caught): New vector.
(catch_syscall_enabled): New.
(catching_syscall_number): New.
* gdbarch.c: Regenerated.
* gdbarch.h: Regenerated.
* gdbarch.sh: Add syscall catchpoint functions and structures.
(get_syscall_number): New.
(UNKNOWN_SYSCALL): New definition.
* i386-linux-nat.c (i386_linux_resume): Select the proper request
to be made for ptrace() considering if we are catching syscalls
or not.
* i386-linux-tdep.c: Include xml-syscall.h header, define the XML
syscall name for the architecture.
(i386_linux_get_syscall_number): New.
(i386_linux_init_abi): Register the correct functions for syscall
catchpoint; set the correct syscall file name.
* inf-child.c (inf_child_set_syscall_catchpoint): New.
(inf_child_target): Assign default values to target_ops.
* inf-ptrace.c (inf_ptrace_resume): Select the proper request
to be made for ptrace() considering if we are catching syscalls
or not.
* inferior.h (struct inferior): Included new variables
any_syscall_count, syscalls_counts and total_syscalls_count,
used to keep track of requested syscall catchpoints.
* infrun.c (resume): Add syscall catchpoint.
(deal_with_syscall_event): New.
(handle_inferior_event): Add syscall entry/return events.
(inferior_has_called_syscall): New.
* linux-nat.c: Define some helpful variables to track wether we have
support for the needed ptrace option.
(linux_test_for_tracesysgood): New.
(linux_supports_tracesysgood): New.
(linux_enable_tracesysgood): New.
(linux_enable_event_reporting): Save the current used ptrace
options.
(linux_child_post_attach): Calling linux_enable_tracesysgood.
(linux_child_post_startup_inferior): Likewise.
(linux_child_set_syscall_catchpoint): New function.
(linux_handle_extended_wait): Handle the case which the inferior stops
because it has called or returned from a syscall.
(linux_target_install_ops): Install the necessary functions to handle
syscall catchpoints.
* linux-nat.h (struct lwp_info): Include syscall_state into the
structure, which indicates if we are in a syscall entry or return.
* ppc-linux-tdep.c: Include xml-syscall.h header, define the XML
syscall filename for the arch.
(ppc_linux_get_syscall_number): New.
(ppc_linux_init_abi): Register the correct functions for syscall
catchpoint; setting the correct name for the XML syscall file.
* target.c (update_current_target): Update/copy functions related to
syscall catchpoint.
(target_waitstatus_to_string): Add syscall catchpoint entry/return
events.
* target.h (struct target_waitstatus): Add syscall number.
(struct syscall): New struct to hold information about syscalls
in the system.
(struct target_ops): Add ops for syscall catchpoint.
(inferior_has_called_syscall): New.
(target_set_syscall_catchpoint): New.
* xml-support.c (xml_fetch_content_from_file): New function,
transferred from xml-tdesc.c.
* xml-support.h (xml_fetch_content_from_file): New.
* xml-tdesc.c (fetch_xml_from_file): Function removed;
transferred to xml-support.c.
(file_read_description_xml): Updated to use the new
xml_fetch_content_from_file function.
* syscalls/gdb-syscalls.dtd: New definition file for syscall's XML
support.
* syscalls/amd64-linux.xml: New file containing information about
syscalls for GNU/Linux systems that use amd64 architecture.
* syscalls/i386-linux.xml: New file containing information about
syscalls for GNU/Linux systems that use i386 architecture.
* syscalls/ppc-linux.xml: New file containing information about
syscalls for GNU/Linux systems that use PPC architecture.
* syscalls/ppc64-linux.xml: New file containing information about
syscalls for GNU/Linux systems that use PPC64 architecture.
* xml-syscall.c: New file containing functions for manipulating
syscall's XML files.
* xml-syscall.h: New file, exporting the functions above mentioned.
* Makefile.in: Support for relocatable GDB datadir and XML
syscall.
* NEWS: Added information about the catch syscall feature.
* doc/gdb.texinfo (Set Catchpoints): Documentation about the new
feature.
* testsuite/Makefile.in: Inclusion of catch-syscall object.
* testsuite/gdb.base/catch-syscall.c: New file.
* testsuite/gdb.base/catch-syscall.exp: New file.
* frame.c (get_frame_id): Default to outer_frame_id if the this_id
method does not supply an ID. Assert that the result is not
null_frame_id.
(outer_frame_id): New.
(frame_id_p): Accept outer_frame_id.
(frame_id_eq): Allow outer_frame_id to be equal to itself.
(frame_find_by_id): Revert previous local workarounds.
(get_prev_frame_1): Adjust end-of-stack check to test outer_frame_id.
* frame.h (null_frame_id, frame_id_p): Update comments.
(outer_frame_id): Declare.
* infrun.c (handle_inferior_event): Do not treat all steps from the
outermost frame as subroutine calls.
* libunwind-frame.c (libunwind_frame_this_id): Do not clear THIS_ID.
* hppa-tdep.c (hppa_stub_frame_this_id): Likewise.
* ia64-tdep.c (ia64_frame_this_id): Likewise.
(ia64_libunwind_frame_this_id, ia64_libunwind_sigtramp_frame_this_id):
Use outer_frame_id instead of null_frame_id.
* amd64obsd-tdep.c (amd64obsd_trapframe_cache): Use outer_frame_id.
* i386obsd-tdep.c (i386obsd_trapframe_cache): Likewise.
* inline-frame.c (inline_frame_this_id): Refuse outer_frame_id.
* thread.c (restore_selected_frame): Update comment and remove
frame_id_p check.
gdb/doc/
* gdbint.texinfo (Unwinding the Frame ID): Reference outer_frame_id.
with save, free.
(register_objfile_data_with_cleanup): Delete arg cleanup and replace
with save, free. All callers updated.
(clear_objfile_data): Replace cleanup loop with separate save and
free loops.
* objfiles.h (register_objfile_data_with_cleanup): Update.
* arm-tdep.c (arm_objfile_data_free): Renamed from
arm_objfile_data_cleanup, all callers updated.
* dwarf2read.c (dwarf2_per_objfile_free): Renamed from
dwarf2_per_objfile_cleanup, all callers updated.
* python/py-objfile.c (py_free_objfile): Renamed from clean_up_objfile,
all callers updated.
* python/py-type.c (save_objfile_types): Renamed from
clean_up_objfile_types, all callers updated.
* remote.c (PACKET_bc, PACKET_bs): New enums.
(remote_protocol_features): Add ReverseStep, ReverseContinue.
(remote_resume): Check for reverse capability.
(_initialize_remote): Add packet config for "bs" and "bc" packets.
* NEWS (new options): Mention set/show for "bs" and "bc" packets.
(show_interactive_mode): New function.
(input_from_terminal_p): If interactive_mode is not auto, then
use that rather than checking the stdin settings.
(init_main): Add "set/show interactive-mode" command.
* NEWS: Add entry for new "set/show interactive-mode" command.
* rs6000-nat.c (vmap_exec): Rewrite using target_get_section_table
instead of relying on the to_sections/to_section_end target_ops
field, since the latter have been removed in a previous patch.
* frame.c (frame_stash): New static constant.
(frame_stash_add, frame_stash_find, frame_stash_invalidate):
New functions.
(get_frame_id): Minor reformatting. Add the frame to the frame stash.
(frame_find_by_id): Search the frame stash first before walking all
frames starting from te current_frame.
(reinit_frame_stash): Add call to frame_stash_invalidate ();
* amd64-linux-tdep.h (enum amd64_syscall): New enum consts,
to replace literal consts used in amd64-linux-tdep.c
* linux-record.h (enum gdb_syscall): New enum consts, to replace
literal consts used in amd64-linux-tdep.c and linux-record.c.
* amd64-linux-tdep.c (amd64_canonicalize_syscall): New function,
translate from native amd64 Linux syscall id to internal gdb id.
(amd64_linux_syscall_record): Switch statement abstracted out
and replaced with a call to amd64_canonicalize_syscall.
* linux-record.c (record_linux_system_call): Replace literal
consts with enum consts.
* i386-linux-tdep.c (i386_canonicalize_syscall): New function,
trivially translate from native i386 Linux syscalls to gdb syscalls.
(i386_linux_intx80_sysenter_record):
gdb/:
* gdb/Makefile.in (check//%): Parse 'config.status --version'
output to recreate the configuration from the testsuite directory,
rather than running 'config.status --recheck' from a different
build directory. Let configure do the recursion rather than
doing it manually.
* ia64-tdep.c (ia64_memory_insert_breakpoint)
(ia64_memory_remove_breakpoint): Return immediately if any of memory
reads fail. Do not combine the VAL values.
Fix ia64 shadowing of breakpoints in multiple slots of a single bundle.
* ia64-tdep.c (ia64_memory_insert_breakpoint): New call
of make_show_memory_breakpoints_cleanup with parameter 0. Move the
reading of SHADOW_CONTENTS to this memory state point of code. Update
comment for the memory re-read.
gdb/testsuite/
* gdb.base/breakpoint-shadow.exp (Second breakpoint placed): Initialize
$bpt2address.
(Second breakpoint address is valid on ia64)
(Third breakpoint on ia64 in the Second breakpoint's bundle): New.
(allocate_piece_closure): New function.
(read_pieced_value): New function.
(write_pieced_value): New function.
(copy_pieced_value_closure): New function.
(free_pieced_value_closure): New function.
(pieced_value_funcs): Define.
(dwarf2_evaluate_loc_desc): Return a computed value for a variable
described with pieces.
