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f6ac5f3d63
I.e., use C++ virtual methods and inheritance instead of tables of
function pointers.
Unfortunately, there's no way to do a smooth transition. ALL native
targets in the tree must be converted at the same time. I've tested
all I could with cross compilers and with help from GCC compile farm,
but naturally I haven't been able to test many of the ports. Still, I
made a best effort to port everything over, and while I expect some
build problems due to typos and such, which should be trivial to fix,
I don't expect any design problems.
* Implementation notes:
- The flattened current_target is gone. References to current_target
or current_target.beneath are replaced with references to
target_stack (the top of the stack) directly.
- To keep "set debug target" working, this adds a new debug_stratum
layer that sits on top of the stack, prints the debug, and delegates
to the target beneath.
In addition, this makes the shortname and longname properties of
target_ops be virtual methods instead of data fields, and makes the
debug target defer those to the target beneath. This is so that
debug code sprinkled around that does "if (debugtarget) ..." can
transparently print the name of the target beneath.
A patch later in the series actually splits out the
shortname/longname methods to a separate structure, but I preferred
to keep that chance separate as it is associated with changing a bit
the design of how targets are registered and open.
- Since you can't check whether a C++ virtual method is overridden,
the old method of checking whether a target_ops implements a method
by comparing the function pointer must be replaced with something
else.
Some cases are fixed by adding a parallel "can_do_foo" target_ops
methods. E.g.,:
+ for (t = target_stack; t != NULL; t = t->beneath)
{
- if (t->to_create_inferior != NULL)
+ if (t->can_create_inferior ())
break;
}
Others are fixed by changing void return type to bool or int return
type, and have the default implementation return false or -1, to
indicate lack of support.
- make-target-delegates was adjusted to generate C++ classes and
methods.
It needed tweaks to grok "virtual" in front of the target method
name, and for the fact that methods are no longer function pointers.
(In particular, the current code parsing the return type was simple
because it could simply parse up until the '(' in '(*to_foo)'.
It now generates a couple C++ classes that inherit target_ops:
dummy_target and debug_target.
Since we need to generate the class declarations as well, i.e., we
need to emit methods twice, we now generate the code in two passes.
- The core_target global is renamed to avoid conflict with the
"core_target" class.
- ctf/tfile targets
init_tracefile_ops is replaced by a base class that is inherited by
both ctf and tfile.
- bsd-uthread
The bsd_uthread_ops_hack hack is gone. It's not needed because
nothing was extending a target created by bsd_uthread_target.
- remote/extended-remote targets
This is a first pass, just enough to C++ify target_ops.
A later pass will convert more free functions to methods, and make
remote_state be truly per remote instance, allowing multiple
simultaneous instances of remote targets.
- inf-child/"native" is converted to an actual base class
(inf_child_target), that is inherited by all native targets.
- GNU/Linux
The old weird double-target linux_ops mechanism in linux-nat.c, is
gone, replaced by adding a few virtual methods to linux-nat.h's
target_ops, called low_XXX, that the concrete linux-nat
implementations override. Sort of like gdbserver's
linux_target_ops, but simpler, for requiring only one
target_ops-like hierarchy, which spares implementing the same method
twice when we need to forward the method to a low implementation.
The low target simply reimplements the target_ops method directly in
that case.
There are a few remaining linux-nat.c hooks that would be better
converted to low_ methods like above too. E.g.:
linux_nat_set_new_thread (t, x86_linux_new_thread);
linux_nat_set_new_fork (t, x86_linux_new_fork);
linux_nat_set_forget_process
That'll be done in a follow up patch.
- We can no longer use functions like x86_use_watchpoints to install
custom methods on an arbitrary base target.
The patch replaces instances of such a pattern with template mixins.
For example memory_breakpoint_target defined in target.h, or
x86_nat_target in x86-nat.h.
- linux_trad_target, MIPS and Alpha GNU/Linux
The code in the new linux-nat-trad.h/c files which was split off of
inf-ptrace.h/c recently, is converted to a C++ base class, and used
by the MIPS and Alpha GNU/Linux ports.
- BSD targets
The
$architecture x NetBSD/OpenBSD/FreeBSD
support matrix complicates things a bit. There's common BSD target
code, and there's common architecture-specific code shared between
the different BSDs. Currently, all that is stiched together to form
a final target, via the i386bsd_target, x86bsd_target,
fbsd_nat_add_target functions etc.
This introduces new fbsd_nat_target, obsd_nat_target and
nbsd_nat_target classes that serve as base/prototype target for the
corresponding BSD variant.
And introduces generic i386/AMD64 BSD targets, to be used as
template mixin to build a final target. Similarly, a generic SPARC
target is added, used by both BSD and Linux ports.
- bsd_kvm_add_target, BSD libkvm target
I considered making bsd_kvm_supply_pcb a virtual method, and then
have each port inherit bsd_kvm_target and override that method, but
that was resulting in lots of unjustified churn, so I left the
function pointer mechanism alone.
gdb/ChangeLog:
2018-05-02 Pedro Alves <palves@redhat.com>
John Baldwin <jhb@freebsd.org>
* target.h (enum strata) <debug_stratum>: New.
(struct target_ops) <all delegation methods>: Replace by C++
virtual methods, and drop "to_" prefix. All references updated
throughout.
<to_shortname, to_longname, to_doc, to_data,
to_have_steppable_watchpoint, to_have_continuable_watchpoint,
to_has_thread_control, to_attach_no_wait>: Delete, replaced by
virtual methods. All references updated throughout.
<can_attach, supports_terminal_ours, can_create_inferior,
get_thread_control_capabilities, attach_no_wait>: New
virtual methods.
<insert_breakpoint, remove_breakpoint>: Now
TARGET_DEFAULT_NORETURN methods.
<info_proc>: Now returns bool.
<to_magic>: Delete.
(OPS_MAGIC): Delete.
(current_target): Delete. All references replaced by references
to ...
(target_stack): ... this. New.
(target_shortname, target_longname): Adjust.
(target_can_run): Now a function declaration.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Remove target_ops parameter.
(complete_target_initialization): Delete.
(memory_breakpoint_target): New template class.
(test_target_ops): Refactor as a C++ class with virtual methods.
* make-target-delegates (NAME_PART): Tighten.
(POINTER_PART, CP_SYMBOL): New.
(SIMPLE_RETURN_PART): Reimplement.
(VEC_RETURN_PART): Expect less.
(RETURN_PART, VIRTUAL_PART): New.
(METHOD): Adjust to C++ virtual methods.
(scan_target_h): Remove reference to C99.
(dname): Output "target_ops::" prefix.
(write_function_header): Adjust to output a C++ class method.
(write_declaration): New.
(write_delegator): Adjust to output a C++ class method.
(tdname): Output "dummy_target::" prefix.
(write_tdefault, write_debugmethod): Adjust to output a C++ class
method.
(tdefault_names, debug_names): Delete.
(return_types, tdefaults, styles, argtypes_array): New.
(top level): All methods are delegators.
(print_class): New.
(top level): Print dummy_target and debug_target classes.
* target-delegates.c: Regenerate.
* target-debug.h (target_debug_print_enum_info_proc_what)
(target_debug_print_thread_control_capabilities)
(target_debug_print_thread_info_p): New.
* target.c (dummy_target): Delete.
(the_dummy_target, the_debug_target): New.
(target_stack): Now extern.
(set_targetdebug): Push/unpush debug target.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Remove target_ops parameter.
(complete_target_initialization): Delete.
(add_target_with_completer): No longer call
complete_target_initialization.
(target_supports_terminal_ours): Use regular delegation.
(update_current_target): Delete.
(push_target): No longer check magic number. Don't call
update_current_target.
(unpush_target): Don't call update_current_target.
(target_is_pushed): No longer check magic number.
(target_require_runnable): Skip for all stratums over
process_stratum.
(target_ops::info_proc): New.
(target_info_proc): Use find_target_at and
find_default_run_target.
(target_supports_disable_randomization): Use regular delegation.
(target_get_osdata): Use find_target_at.
(target_ops::open, target_ops::close, target_ops::can_attach)
(target_ops::attach, target_ops::can_create_inferior)
(target_ops::create_inferior, target_ops::can_run)
(target_can_run): New.
(default_fileio_target): Use regular delegation.
(target_ops::fileio_open, target_ops::fileio_pwrite)
(target_ops::fileio_pread, target_ops::fileio_fstat)
(target_ops::fileio_close, target_ops::fileio_unlink)
(target_ops::fileio_readlink): New.
(target_fileio_open_1, target_fileio_unlink)
(target_fileio_readlink): Always call the target method. Handle
FILEIO_ENOSYS.
(return_zero, return_zero_has_execution): Delete.
(init_dummy_target): Delete.
(dummy_target::dummy_target, dummy_target::shortname)
(dummy_target::longname, dummy_target::doc)
(debug_target::debug_target, debug_target::shortname)
(debug_target::longname, debug_target::doc): New.
(target_supports_delete_record): Use regular delegation.
(setup_target_debug): Delete.
(maintenance_print_target_stack): Skip debug_stratum.
(initialize_targets): Instantiate the_dummy_target and
the_debug_target.
* auxv.c (target_auxv_parse): Remove 'ops' parameter. Adjust to
use target_stack.
(target_auxv_search, fprint_target_auxv): Adjust.
(info_auxv_command): Adjust to use target_stack.
* auxv.h (target_auxv_parse): Remove 'ops' parameter.
* exceptions.c (print_flush): Handle a NULL target_stack.
* regcache.c (target_ops_no_register): Refactor as class with
virtual methods.
* exec.c (exec_target): New class.
(exec_ops): Now an exec_target.
(exec_open, exec_close_1, exec_get_section_table)
(exec_xfer_partial, exec_files_info, exec_has_memory)
(exec_make_note_section): Refactor as exec_target methods.
(exec_file_clear, ignore, exec_remove_breakpoint, init_exec_ops):
Delete.
(exec_target::find_memory_regions): New.
(_initialize_exec): Don't call init_exec_ops.
* gdbcore.h (exec_file_clear): Delete.
* corefile.c (core_target): Delete.
(core_file_command): Adjust.
* corelow.c (core_target): New class.
(the_core_target): New.
(core_close): Remove target_ops parameter.
(core_close_cleanup): Adjust.
(core_target::close): New.
(core_open, core_detach, get_core_registers, core_files_info)
(core_xfer_partial, core_thread_alive, core_read_description)
(core_pid_to_str, core_thread_name, core_has_memory)
(core_has_stack, core_has_registers, core_info_proc): Rework as
core_target methods.
(ignore, core_remove_breakpoint, init_core_ops): Delete.
(_initialize_corelow): Initialize the_core_target.
* gdbcore.h (core_target): Delete.
(the_core_target): New.
* ctf.c: (ctf_target): New class.
(ctf_ops): Now a ctf_target.
(ctf_open, ctf_close, ctf_files_info, ctf_fetch_registers)
(ctf_xfer_partial, ctf_get_trace_state_variable_value)
(ctf_trace_find, ctf_traceframe_info): Refactor as ctf_target
methods.
(init_ctf_ops): Delete.
(_initialize_ctf): Don't call it.
* tracefile-tfile.c (tfile_target): New class.
(tfile_ops): Now a tfile_target.
(tfile_open, tfile_close, tfile_files_info)
(tfile_get_tracepoint_status, tfile_trace_find)
(tfile_fetch_registers, tfile_xfer_partial)
(tfile_get_trace_state_variable_value, tfile_traceframe_info):
Refactor as tfile_target methods.
(tfile_xfer_partial_features): Remove target_ops parameter.
(init_tfile_ops): Delete.
(_initialize_tracefile_tfile): Don't call it.
* tracefile.c (tracefile_has_all_memory, tracefile_has_memory)
(tracefile_has_stack, tracefile_has_registers)
(tracefile_thread_alive, tracefile_get_trace_status): Refactor as
tracefile_target methods.
(init_tracefile_ops): Delete.
(tracefile_target::tracefile_target): New.
* tracefile.h: Include "target.h".
(tracefile_target): New class.
(init_tracefile_ops): Delete.
* spu-multiarch.c (spu_multiarch_target): New class.
(spu_ops): Now a spu_multiarch_target.
(spu_thread_architecture, spu_region_ok_for_hw_watchpoint)
(spu_fetch_registers, spu_store_registers, spu_xfer_partial)
(spu_search_memory, spu_mourn_inferior): Refactor as
spu_multiarch_target methods.
(init_spu_ops): Delete.
(_initialize_spu_multiarch): Remove references to init_spu_ops,
complete_target_initialization.
* ravenscar-thread.c (ravenscar_thread_target): New class.
(ravenscar_ops): Now a ravenscar_thread_target.
(ravenscar_resume, ravenscar_wait, ravenscar_update_thread_list)
(ravenscar_thread_alive, ravenscar_pid_to_str)
(ravenscar_fetch_registers, ravenscar_store_registers)
(ravenscar_prepare_to_store, ravenscar_stopped_by_sw_breakpoint)
(ravenscar_stopped_by_hw_breakpoint)
(ravenscar_stopped_by_watchpoint, ravenscar_stopped_data_address)
(ravenscar_mourn_inferior, ravenscar_core_of_thread)
(ravenscar_get_ada_task_ptid): Refactor as ravenscar_thread_target
methods.
(init_ravenscar_thread_ops): Delete.
(_initialize_ravenscar): Remove references to
init_ravenscar_thread_ops and complete_target_initialization.
* bsd-uthread.c (bsd_uthread_ops_hack): Delete.
(bsd_uthread_target): New class.
(bsd_uthread_ops): Now a bsd_uthread_target.
(bsd_uthread_activate): Adjust to refer to bsd_uthread_ops.
(bsd_uthread_close, bsd_uthread_mourn_inferior)
(bsd_uthread_fetch_registers, bsd_uthread_store_registers)
(bsd_uthread_wait, bsd_uthread_resume, bsd_uthread_thread_alive)
(bsd_uthread_update_thread_list, bsd_uthread_extra_thread_info)
(bsd_uthread_pid_to_str): Refactor as bsd_uthread_target methods.
(bsd_uthread_target): Delete function.
(_initialize_bsd_uthread): Remove reference to
complete_target_initialization.
* bfd-target.c (target_bfd_data): Delete. Fields folded into ...
(target_bfd): ... this new class.
(target_bfd_xfer_partial, target_bfd_get_section_table)
(target_bfd_close): Refactor as target_bfd methods.
(target_bfd::~target_bfd): New.
(target_bfd_reopen): Adjust.
(target_bfd::close): New.
* record-btrace.c (record_btrace_target): New class.
(record_btrace_ops): Now a record_btrace_target.
(record_btrace_open, record_btrace_stop_recording)
(record_btrace_disconnect, record_btrace_close)
(record_btrace_async, record_btrace_info)
(record_btrace_insn_history, record_btrace_insn_history_range)
(record_btrace_insn_history_from, record_btrace_call_history)
(record_btrace_call_history_range)
(record_btrace_call_history_from, record_btrace_record_method)
(record_btrace_is_replaying, record_btrace_will_replay)
(record_btrace_xfer_partial, record_btrace_insert_breakpoint)
(record_btrace_remove_breakpoint, record_btrace_fetch_registers)
(record_btrace_store_registers, record_btrace_prepare_to_store)
(record_btrace_to_get_unwinder)
(record_btrace_to_get_tailcall_unwinder, record_btrace_resume)
(record_btrace_commit_resume, record_btrace_wait)
(record_btrace_stop, record_btrace_can_execute_reverse)
(record_btrace_stopped_by_sw_breakpoint)
(record_btrace_supports_stopped_by_sw_breakpoint)
(record_btrace_stopped_by_hw_breakpoint)
(record_btrace_supports_stopped_by_hw_breakpoint)
(record_btrace_update_thread_list, record_btrace_thread_alive)
(record_btrace_goto_begin, record_btrace_goto_end)
(record_btrace_goto, record_btrace_stop_replaying_all)
(record_btrace_execution_direction)
(record_btrace_prepare_to_generate_core)
(record_btrace_done_generating_core): Refactor as
record_btrace_target methods.
(init_record_btrace_ops): Delete.
(_initialize_record_btrace): Remove reference to
init_record_btrace_ops.
* record-full.c (RECORD_FULL_IS_REPLAY): Adjust to always refer to
the execution_direction global.
(record_full_base_target, record_full_target)
(record_full_core_target): New classes.
(record_full_ops): Now a record_full_target.
(record_full_core_ops): Now a record_full_core_target.
(record_full_target::detach, record_full_target::disconnect)
(record_full_core_target::disconnect)
(record_full_target::mourn_inferior, record_full_target::kill):
New.
(record_full_open, record_full_close, record_full_async): Refactor
as methods of the record_full_base_target class.
(record_full_resume, record_full_commit_resume): Refactor
as methods of the record_full_target class.
(record_full_wait, record_full_stopped_by_watchpoint)
(record_full_stopped_data_address)
(record_full_stopped_by_sw_breakpoint)
(record_full_supports_stopped_by_sw_breakpoint)
(record_full_stopped_by_hw_breakpoint)
(record_full_supports_stopped_by_hw_breakpoint): Refactor as
methods of the record_full_base_target class.
(record_full_store_registers, record_full_xfer_partial)
(record_full_insert_breakpoint, record_full_remove_breakpoint):
Refactor as methods of the record_full_target class.
(record_full_can_execute_reverse, record_full_get_bookmark)
(record_full_goto_bookmark, record_full_execution_direction)
(record_full_record_method, record_full_info, record_full_delete)
(record_full_is_replaying, record_full_will_replay)
(record_full_goto_begin, record_full_goto_end, record_full_goto)
(record_full_stop_replaying): Refactor as methods of the
record_full_base_target class.
(record_full_core_resume, record_full_core_kill)
(record_full_core_fetch_registers)
(record_full_core_prepare_to_store)
(record_full_core_store_registers, record_full_core_xfer_partial)
(record_full_core_insert_breakpoint)
(record_full_core_remove_breakpoint)
(record_full_core_has_execution): Refactor
as methods of the record_full_core_target class.
(record_full_base_target::supports_delete_record): New.
(init_record_full_ops): Delete.
(init_record_full_core_ops): Delete.
(record_full_save): Refactor as method of the
record_full_base_target class.
(_initialize_record_full): Remove references to
init_record_full_ops and init_record_full_core_ops.
* remote.c (remote_target, extended_remote_target): New classes.
(remote_ops): Now a remote_target.
(extended_remote_ops): Now an extended_remote_target.
(remote_insert_fork_catchpoint, remote_remove_fork_catchpoint)
(remote_insert_vfork_catchpoint, remote_remove_vfork_catchpoint)
(remote_insert_exec_catchpoint, remote_remove_exec_catchpoint)
(remote_pass_signals, remote_set_syscall_catchpoint)
(remote_program_signals, )
(remote_thread_always_alive): Remove target_ops parameter.
(remote_thread_alive, remote_thread_name)
(remote_update_thread_list, remote_threads_extra_info)
(remote_static_tracepoint_marker_at)
(remote_static_tracepoint_markers_by_strid)
(remote_get_ada_task_ptid, remote_close, remote_start_remote)
(remote_open): Refactor as methods of remote_target.
(extended_remote_open, extended_remote_detach)
(extended_remote_attach, extended_remote_post_attach):
(extended_remote_supports_disable_randomization)
(extended_remote_create_inferior): : Refactor as method of
extended_remote_target.
(remote_set_permissions, remote_open_1, remote_detach)
(remote_follow_fork, remote_follow_exec, remote_disconnect)
(remote_resume, remote_commit_resume, remote_stop)
(remote_interrupt, remote_pass_ctrlc, remote_terminal_inferior)
(remote_terminal_ours, remote_wait, remote_fetch_registers)
(remote_prepare_to_store, remote_store_registers)
(remote_flash_erase, remote_flash_done, remote_files_info)
(remote_kill, remote_mourn, remote_insert_breakpoint)
(remote_remove_breakpoint, remote_insert_watchpoint)
(remote_watchpoint_addr_within_range)
(remote_remove_watchpoint, remote_region_ok_for_hw_watchpoint)
(remote_check_watch_resources, remote_stopped_by_sw_breakpoint)
(remote_supports_stopped_by_sw_breakpoint)
(remote_stopped_by_hw_breakpoint)
(remote_supports_stopped_by_hw_breakpoint)
(remote_stopped_by_watchpoint, remote_stopped_data_address)
(remote_insert_hw_breakpoint, remote_remove_hw_breakpoint)
(remote_verify_memory): Refactor as methods of remote_target.
(remote_write_qxfer, remote_read_qxfer): Remove target_ops
parameter.
(remote_xfer_partial, remote_get_memory_xfer_limit)
(remote_search_memory, remote_rcmd, remote_memory_map)
(remote_pid_to_str, remote_get_thread_local_address)
(remote_get_tib_address, remote_read_description): Refactor as
methods of remote_target.
(remote_target::fileio_open, remote_target::fileio_pwrite)
(remote_target::fileio_pread, remote_target::fileio_close): New.
(remote_hostio_readlink, remote_hostio_fstat)
(remote_filesystem_is_local, remote_can_execute_reverse)
(remote_supports_non_stop, remote_supports_disable_randomization)
(remote_supports_multi_process, remote_supports_cond_breakpoints)
(remote_supports_enable_disable_tracepoint)
(remote_supports_string_tracing)
(remote_can_run_breakpoint_commands, remote_trace_init)
(remote_download_tracepoint, remote_can_download_tracepoint)
(remote_download_trace_state_variable, remote_enable_tracepoint)
(remote_disable_tracepoint, remote_trace_set_readonly_regions)
(remote_trace_start, remote_get_trace_status)
(remote_get_tracepoint_status, remote_trace_stop)
(remote_trace_find, remote_get_trace_state_variable_value)
(remote_save_trace_data, remote_get_raw_trace_data)
(remote_set_disconnected_tracing, remote_core_of_thread)
(remote_set_circular_trace_buffer, remote_traceframe_info)
(remote_get_min_fast_tracepoint_insn_len)
(remote_set_trace_buffer_size, remote_set_trace_notes)
(remote_use_agent, remote_can_use_agent, remote_enable_btrace)
(remote_disable_btrace, remote_teardown_btrace)
(remote_read_btrace, remote_btrace_conf)
(remote_augmented_libraries_svr4_read, remote_load)
(remote_pid_to_exec_file, remote_can_do_single_step)
(remote_execution_direction, remote_thread_handle_to_thread_info):
Refactor as methods of remote_target.
(init_remote_ops, init_extended_remote_ops): Delete.
(remote_can_async_p, remote_is_async_p, remote_async)
(remote_thread_events, remote_upload_tracepoints)
(remote_upload_trace_state_variables): Refactor as methods of
remote_target.
(_initialize_remote): Remove references to init_remote_ops and
init_extended_remote_ops.
* remote-sim.c (gdbsim_target): New class.
(gdbsim_fetch_register, gdbsim_store_register, gdbsim_kill)
(gdbsim_load, gdbsim_create_inferior, gdbsim_open, gdbsim_close)
(gdbsim_detach, gdbsim_resume, gdbsim_interrupt)
(gdbsim_wait, gdbsim_prepare_to_store, gdbsim_xfer_partial)
(gdbsim_files_info, gdbsim_mourn_inferior, gdbsim_thread_alive)
(gdbsim_pid_to_str, gdbsim_has_all_memory, gdbsim_has_memory):
Refactor as methods of gdbsim_target.
(gdbsim_ops): Now a gdbsim_target.
(init_gdbsim_ops): Delete.
(gdbsim_cntrl_c): Adjust.
(_initialize_remote_sim): Remove reference to init_gdbsim_ops.
* amd64-linux-nat.c (amd64_linux_nat_target): New class.
(the_amd64_linux_nat_target): New.
(amd64_linux_fetch_inferior_registers)
(amd64_linux_store_inferior_registers): Refactor as methods of
amd64_linux_nat_target.
(_initialize_amd64_linux_nat): Adjust. Set linux_target.
* i386-linux-nat.c: Don't include "linux-nat.h".
(i386_linux_nat_target): New class.
(the_i386_linux_nat_target): New.
(i386_linux_fetch_inferior_registers)
(i386_linux_store_inferior_registers, i386_linux_resume): Refactor
as methods of i386_linux_nat_target.
(_initialize_i386_linux_nat): Adjust. Set linux_target.
* inf-child.c (inf_child_ops): Delete.
(inf_child_fetch_inferior_registers)
(inf_child_store_inferior_registers): Delete.
(inf_child_post_attach, inf_child_prepare_to_store): Refactor as
methods of inf_child_target.
(inf_child_target::supports_terminal_ours)
(inf_child_target::terminal_init)
(inf_child_target::terminal_inferior)
(inf_child_target::terminal_ours_for_output)
(inf_child_target::terminal_ours, inf_child_target::interrupt)
(inf_child_target::pass_ctrlc, inf_child_target::terminal_info):
New.
(inf_child_open, inf_child_disconnect, inf_child_close)
(inf_child_mourn_inferior, inf_child_maybe_unpush_target)
(inf_child_post_startup_inferior, inf_child_can_run)
(inf_child_pid_to_exec_file): Refactor as methods of
inf_child_target.
(inf_child_follow_fork): Delete.
(inf_child_target::can_create_inferior)
(inf_child_target::can_attach): New.
(inf_child_target::has_all_memory, inf_child_target::has_memory)
(inf_child_target::has_stack, inf_child_target::has_registers)
(inf_child_target::has_execution): New.
(inf_child_fileio_open, inf_child_fileio_pwrite)
(inf_child_fileio_pread, inf_child_fileio_fstat)
(inf_child_fileio_close, inf_child_fileio_unlink)
(inf_child_fileio_readlink, inf_child_use_agent)
(inf_child_can_use_agent): Refactor as methods of
inf_child_target.
(return_zero, inf_child_target): Delete.
(inf_child_target::inf_child_target): New.
* inf-child.h: Include "target.h".
(inf_child_target): Delete function prototype.
(inf_child_target): New class.
(inf_child_open_target, inf_child_mourn_inferior)
(inf_child_maybe_unpush_target): Delete.
* inf-ptrace.c (inf_ptrace_target::~inf_ptrace_target): New.
(inf_ptrace_follow_fork, inf_ptrace_insert_fork_catchpoint)
(inf_ptrace_remove_fork_catchpoint, inf_ptrace_create_inferior)
(inf_ptrace_post_startup_inferior, inf_ptrace_mourn_inferior)
(inf_ptrace_attach, inf_ptrace_post_attach, inf_ptrace_detach)
(inf_ptrace_detach_success, inf_ptrace_kill, inf_ptrace_resume)
(inf_ptrace_wait, inf_ptrace_xfer_partial)
(inf_ptrace_thread_alive, inf_ptrace_files_info)
(inf_ptrace_pid_to_str, inf_ptrace_auxv_parse): Refactor as
methods of inf_ptrace_target.
(inf_ptrace_target): Delete function.
* inf-ptrace.h: Include "inf-child.h".
(inf_ptrace_target): Delete function declaration.
(inf_ptrace_target): New class.
(inf_ptrace_trad_target, inf_ptrace_detach_success): Delete.
* linux-nat.c (linux_target): New.
(linux_ops, linux_ops_saved, super_xfer_partial): Delete.
(linux_nat_target::~linux_nat_target): New.
(linux_child_post_attach, linux_child_post_startup_inferior)
(linux_child_follow_fork, linux_child_insert_fork_catchpoint)
(linux_child_remove_fork_catchpoint)
(linux_child_insert_vfork_catchpoint)
(linux_child_remove_vfork_catchpoint)
(linux_child_insert_exec_catchpoint)
(linux_child_remove_exec_catchpoint)
(linux_child_set_syscall_catchpoint, linux_nat_pass_signals)
(linux_nat_create_inferior, linux_nat_attach, linux_nat_detach)
(linux_nat_resume, linux_nat_stopped_by_watchpoint)
(linux_nat_stopped_data_address)
(linux_nat_stopped_by_sw_breakpoint)
(linux_nat_supports_stopped_by_sw_breakpoint)
(linux_nat_stopped_by_hw_breakpoint)
(linux_nat_supports_stopped_by_hw_breakpoint, linux_nat_wait)
(linux_nat_kill, linux_nat_mourn_inferior)
(linux_nat_xfer_partial, linux_nat_thread_alive)
(linux_nat_update_thread_list, linux_nat_pid_to_str)
(linux_nat_thread_name, linux_child_pid_to_exec_file)
(linux_child_static_tracepoint_markers_by_strid)
(linux_nat_is_async_p, linux_nat_can_async_p)
(linux_nat_supports_non_stop, linux_nat_always_non_stop_p)
(linux_nat_supports_multi_process)
(linux_nat_supports_disable_randomization, linux_nat_async)
(linux_nat_stop, linux_nat_close, linux_nat_thread_address_space)
(linux_nat_core_of_thread, linux_nat_filesystem_is_local)
(linux_nat_fileio_open, linux_nat_fileio_readlink)
(linux_nat_fileio_unlink, linux_nat_thread_events): Refactor as
methods of linux_nat_target.
(linux_nat_wait_1, linux_xfer_siginfo, linux_proc_xfer_partial)
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Remove target_ops
parameter.
(check_stopped_by_watchpoint): Adjust.
(linux_xfer_partial): Delete.
(linux_target_install_ops, linux_target, linux_nat_add_target):
Delete.
(linux_nat_target::linux_nat_target): New.
* linux-nat.h: Include "inf-ptrace.h".
(linux_nat_target): New.
(linux_target, linux_target_install_ops, linux_nat_add_target):
Delete function declarations.
(linux_target): Declare global.
* linux-thread-db.c (thread_db_target): New.
(thread_db_target::thread_db_target): New.
(thread_db_ops): Delete.
(the_thread_db_target): New.
(thread_db_detach, thread_db_wait, thread_db_mourn_inferior)
(thread_db_update_thread_list, thread_db_pid_to_str)
(thread_db_extra_thread_info)
(thread_db_thread_handle_to_thread_info)
(thread_db_get_thread_local_address, thread_db_get_ada_task_ptid)
(thread_db_resume): Refactor as methods of thread_db_target.
(init_thread_db_ops): Delete.
(_initialize_thread_db): Remove reference to init_thread_db_ops.
* x86-linux-nat.c: Don't include "linux-nat.h".
(super_post_startup_inferior): Delete.
(x86_linux_nat_target::~x86_linux_nat_target): New.
(x86_linux_child_post_startup_inferior)
(x86_linux_read_description, x86_linux_enable_btrace)
(x86_linux_disable_btrace, x86_linux_teardown_btrace)
(x86_linux_read_btrace, x86_linux_btrace_conf): Refactor as
methods of x86_linux_nat_target.
(x86_linux_create_target): Delete. Bits folded ...
(x86_linux_add_target): ... here. Now takes a linux_nat_target
pointer.
* x86-linux-nat.h: Include "linux-nat.h" and "x86-nat.h".
(x86_linux_nat_target): New class.
(x86_linux_create_target): Delete.
(x86_linux_add_target): Now takes a linux_nat_target pointer.
* x86-nat.c (x86_insert_watchpoint, x86_remove_watchpoint)
(x86_region_ok_for_watchpoint, x86_stopped_data_address)
(x86_stopped_by_watchpoint, x86_insert_hw_breakpoint)
(x86_remove_hw_breakpoint, x86_can_use_hw_breakpoint)
(x86_stopped_by_hw_breakpoint): Remove target_ops parameter and
make extern.
(x86_use_watchpoints): Delete.
* x86-nat.h: Include "breakpoint.h" and "target.h".
(x86_use_watchpoints): Delete.
(x86_can_use_hw_breakpoint, x86_region_ok_for_hw_watchpoint)
(x86_stopped_by_watchpoint, x86_stopped_data_address)
(x86_insert_watchpoint, x86_remove_watchpoint)
(x86_insert_hw_breakpoint, x86_remove_hw_breakpoint)
(x86_stopped_by_hw_breakpoint): New declarations.
(x86_nat_target): New template class.
* ppc-linux-nat.c (ppc_linux_nat_target): New class.
(the_ppc_linux_nat_target): New.
(ppc_linux_fetch_inferior_registers)
(ppc_linux_can_use_hw_breakpoint)
(ppc_linux_region_ok_for_hw_watchpoint)
(ppc_linux_ranged_break_num_registers)
(ppc_linux_insert_hw_breakpoint, ppc_linux_remove_hw_breakpoint)
(ppc_linux_insert_mask_watchpoint)
(ppc_linux_remove_mask_watchpoint)
(ppc_linux_can_accel_watchpoint_condition)
(ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint)
(ppc_linux_stopped_data_address, ppc_linux_stopped_by_watchpoint)
(ppc_linux_watchpoint_addr_within_range)
(ppc_linux_masked_watch_num_registers)
(ppc_linux_store_inferior_registers, ppc_linux_auxv_parse)
(ppc_linux_read_description): Refactor as methods of
ppc_linux_nat_target.
(_initialize_ppc_linux_nat): Adjust. Set linux_target.
* procfs.c (procfs_xfer_partial): Delete forward declaration.
(procfs_target): New class.
(the_procfs_target): New.
(procfs_target): Delete function.
(procfs_auxv_parse, procfs_attach, procfs_detach)
(procfs_fetch_registers, procfs_store_registers, procfs_wait)
(procfs_xfer_partial, procfs_resume, procfs_pass_signals)
(procfs_files_info, procfs_kill_inferior, procfs_mourn_inferior)
(procfs_create_inferior, procfs_update_thread_list)
(procfs_thread_alive, procfs_pid_to_str)
(procfs_can_use_hw_breakpoint, procfs_stopped_by_watchpoint)
(procfs_stopped_data_address, procfs_insert_watchpoint)
(procfs_remove_watchpoint, procfs_region_ok_for_hw_watchpoint)
(proc_find_memory_regions, procfs_info_proc)
(procfs_make_note_section): Refactor as methods of procfs_target.
(_initialize_procfs): Adjust.
* sol-thread.c (sol_thread_target): New class.
(sol_thread_ops): Now a sol_thread_target.
(sol_thread_detach, sol_thread_resume, sol_thread_wait)
(sol_thread_fetch_registers, sol_thread_store_registers)
(sol_thread_xfer_partial, sol_thread_mourn_inferior)
(sol_thread_alive, solaris_pid_to_str, sol_update_thread_list)
(sol_get_ada_task_ptid): Refactor as methods of sol_thread_target.
(init_sol_thread_ops): Delete.
(_initialize_sol_thread): Adjust. Remove references to
init_sol_thread_ops and complete_target_initialization.
* windows-nat.c (windows_nat_target): New class.
(windows_fetch_inferior_registers)
(windows_store_inferior_registers, windows_resume, windows_wait)
(windows_attach, windows_detach, windows_pid_to_exec_file)
(windows_files_info, windows_create_inferior)
(windows_mourn_inferior, windows_interrupt, windows_kill_inferior)
(windows_close, windows_pid_to_str, windows_xfer_partial)
(windows_get_tib_address, windows_get_ada_task_ptid)
(windows_thread_name, windows_thread_alive): Refactor as
windows_nat_target methods.
(do_initial_windows_stuff): Adjust.
(windows_target): Delete function.
(_initialize_windows_nat): Adjust.
* darwin-nat.c (darwin_resume, darwin_wait_to, darwin_interrupt)
(darwin_mourn_inferior, darwin_kill_inferior)
(darwin_create_inferior, darwin_attach, darwin_detach)
(darwin_pid_to_str, darwin_thread_alive, darwin_xfer_partial)
(darwin_pid_to_exec_file, darwin_get_ada_task_ptid)
(darwin_supports_multi_process): Refactor as darwin_nat_target
methods.
(darwin_resume_to, darwin_files_info): Delete.
(_initialize_darwin_inferior): Rename to ...
(_initialize_darwin_nat): ... this. Adjust to C++ification.
* darwin-nat.h: Include "inf-child.h".
(darwin_nat_target): New class.
(darwin_complete_target): Delete.
* i386-darwin-nat.c (i386_darwin_nat_target): New class.
(darwin_target): New.
(i386_darwin_fetch_inferior_registers)
(i386_darwin_store_inferior_registers): Refactor as methods of
darwin_nat_target.
(darwin_complete_target): Delete, with ...
(_initialize_i386_darwin_nat): ... bits factored out here.
* alpha-linux-nat.c (alpha_linux_nat_target): New class.
(the_alpha_linux_nat_target): New.
(alpha_linux_register_u_offset): Refactor as
alpha_linux_nat_target method.
(_initialize_alpha_linux_nat): Adjust.
* linux-nat-trad.c (inf_ptrace_register_u_offset): Delete.
(inf_ptrace_fetch_register, inf_ptrace_fetch_registers)
(inf_ptrace_store_register, inf_ptrace_store_registers): Refact as
methods of linux_nat_trad_target.
(linux_trad_target): Delete.
* linux-nat-trad.h (linux_trad_target): Delete function.
(linux_nat_trad_target): New class.
* mips-linux-nat.c (mips_linux_nat_target): New class.
(super_fetch_registers, super_store_registers, super_close):
Delete.
(the_mips_linux_nat_target): New.
(mips64_linux_regsets_fetch_registers)
(mips64_linux_regsets_store_registers)
(mips64_linux_fetch_registers, mips64_linux_store_registers)
(mips_linux_register_u_offset, mips_linux_read_description)
(mips_linux_can_use_hw_breakpoint)
(mips_linux_stopped_by_watchpoint)
(mips_linux_stopped_data_address)
(mips_linux_region_ok_for_hw_watchpoint)
(mips_linux_insert_watchpoint, mips_linux_remove_watchpoint)
(mips_linux_close): Refactor as methods of mips_linux_nat.
(_initialize_mips_linux_nat): Adjust to C++ification.
* aix-thread.c (aix_thread_target): New class.
(aix_thread_ops): Now an aix_thread_target.
(aix_thread_detach, aix_thread_resume, aix_thread_wait)
(aix_thread_fetch_registers, aix_thread_store_registers)
(aix_thread_xfer_partial, aix_thread_mourn_inferior)
(aix_thread_thread_alive, aix_thread_pid_to_str)
(aix_thread_extra_thread_info, aix_thread_get_ada_task_ptid):
Refactor as methods of aix_thread_target.
(init_aix_thread_ops): Delete.
(_initialize_aix_thread): Remove references to init_aix_thread_ops
and complete_target_initialization.
* rs6000-nat.c (rs6000_xfer_shared_libraries): Delete.
(rs6000_nat_target): New class.
(the_rs6000_nat_target): New.
(rs6000_fetch_inferior_registers, rs6000_store_inferior_registers)
(rs6000_xfer_partial, rs6000_wait, rs6000_create_inferior)
(rs6000_xfer_shared_libraries): Refactor as rs6000_nat_target methods.
(super_create_inferior): Delete.
(_initialize_rs6000_nat): Adjust to C++ification.
* arm-linux-nat.c (arm_linux_nat_target): New class.
(the_arm_linux_nat_target): New.
(arm_linux_fetch_inferior_registers)
(arm_linux_store_inferior_registers, arm_linux_read_description)
(arm_linux_can_use_hw_breakpoint, arm_linux_insert_hw_breakpoint)
(arm_linux_remove_hw_breakpoint)
(arm_linux_region_ok_for_hw_watchpoint)
(arm_linux_insert_watchpoint, arm_linux_remove_watchpoint)
(arm_linux_stopped_data_address, arm_linux_stopped_by_watchpoint)
(arm_linux_watchpoint_addr_within_range): Refactor as methods of
arm_linux_nat_target.
(_initialize_arm_linux_nat): Adjust to C++ification.
* aarch64-linux-nat.c (aarch64_linux_nat_target): New class.
(the_aarch64_linux_nat_target): New.
(aarch64_linux_fetch_inferior_registers)
(aarch64_linux_store_inferior_registers)
(aarch64_linux_child_post_startup_inferior)
(aarch64_linux_read_description)
(aarch64_linux_can_use_hw_breakpoint)
(aarch64_linux_insert_hw_breakpoint)
(aarch64_linux_remove_hw_breakpoint)
(aarch64_linux_insert_watchpoint, aarch64_linux_remove_watchpoint)
(aarch64_linux_region_ok_for_hw_watchpoint)
(aarch64_linux_stopped_data_address)
(aarch64_linux_stopped_by_watchpoint)
(aarch64_linux_watchpoint_addr_within_range)
(aarch64_linux_can_do_single_step): Refactor as methods of
aarch64_linux_nat_target.
(super_post_startup_inferior): Delete.
(_initialize_aarch64_linux_nat): Adjust to C++ification.
* hppa-linux-nat.c (hppa_linux_nat_target): New class.
(the_hppa_linux_nat_target): New.
(hppa_linux_fetch_inferior_registers)
(hppa_linux_store_inferior_registers): Refactor as methods of
hppa_linux_nat_target.
(_initialize_hppa_linux_nat): Adjust to C++ification.
* ia64-linux-nat.c (ia64_linux_nat_target): New class.
(the_ia64_linux_nat_target): New.
(ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint)
(ia64_linux_stopped_data_address)
(ia64_linux_stopped_by_watchpoint, ia64_linux_fetch_registers)
(ia64_linux_store_registers, ia64_linux_xfer_partial): Refactor as
ia64_linux_nat_target methods.
(super_xfer_partial): Delete.
(_initialize_ia64_linux_nat): Adjust to C++ification.
* m32r-linux-nat.c (m32r_linux_nat_target): New class.
(the_m32r_linux_nat_target): New.
(m32r_linux_fetch_inferior_registers)
(m32r_linux_store_inferior_registers): Refactor as
m32r_linux_nat_target methods.
(_initialize_m32r_linux_nat): Adjust to C++ification.
* m68k-linux-nat.c (m68k_linux_nat_target): New class.
(the_m68k_linux_nat_target): New.
(m68k_linux_fetch_inferior_registers)
(m68k_linux_store_inferior_registers): Refactor as
m68k_linux_nat_target methods.
(_initialize_m68k_linux_nat): Adjust to C++ification.
* s390-linux-nat.c (s390_linux_nat_target): New class.
(the_s390_linux_nat_target): New.
(s390_linux_fetch_inferior_registers)
(s390_linux_store_inferior_registers, s390_stopped_by_watchpoint)
(s390_insert_watchpoint, s390_remove_watchpoint)
(s390_can_use_hw_breakpoint, s390_insert_hw_breakpoint)
(s390_remove_hw_breakpoint, s390_region_ok_for_hw_watchpoint)
(s390_auxv_parse, s390_read_description): Refactor as methods of
s390_linux_nat_target.
(_initialize_s390_nat): Adjust to C++ification.
* sparc-linux-nat.c (sparc_linux_nat_target): New class.
(the_sparc_linux_nat_target): New.
(_initialize_sparc_linux_nat): Adjust to C++ification.
* sparc-nat.c (sparc_fetch_inferior_registers)
(sparc_store_inferior_registers): Remove target_ops parameter.
* sparc-nat.h (sparc_fetch_inferior_registers)
(sparc_store_inferior_registers): Remove target_ops parameter.
* sparc64-linux-nat.c (sparc64_linux_nat_target): New class.
(the_sparc64_linux_nat_target): New.
(_initialize_sparc64_linux_nat): Adjust to C++ification.
* spu-linux-nat.c (spu_linux_nat_target): New class.
(the_spu_linux_nat_target): New.
(spu_child_post_startup_inferior, spu_child_post_attach)
(spu_child_wait, spu_fetch_inferior_registers)
(spu_store_inferior_registers, spu_xfer_partial)
(spu_can_use_hw_breakpoint): Refactor as spu_linux_nat_target
methods.
(_initialize_spu_nat): Adjust to C++ification.
* tilegx-linux-nat.c (tilegx_linux_nat_target): New class.
(the_tilegx_linux_nat_target): New.
(fetch_inferior_registers, store_inferior_registers):
Refactor as methods.
(_initialize_tile_linux_nat): Adjust to C++ification.
* xtensa-linux-nat.c (xtensa_linux_nat_target): New class.
(the_xtensa_linux_nat_target): New.
(xtensa_linux_fetch_inferior_registers)
(xtensa_linux_store_inferior_registers): Refactor as
xtensa_linux_nat_target methods.
(_initialize_xtensa_linux_nat): Adjust to C++ification.
* fbsd-nat.c (USE_SIGTRAP_SIGINFO): Delete.
(fbsd_pid_to_exec_file, fbsd_find_memory_regions)
(fbsd_find_memory_regions, fbsd_info_proc, fbsd_xfer_partial)
(fbsd_thread_alive, fbsd_pid_to_str, fbsd_thread_name)
(fbsd_update_thread_list, fbsd_resume, fbsd_wait)
(fbsd_stopped_by_sw_breakpoint)
(fbsd_supports_stopped_by_sw_breakpoint, fbsd_follow_fork)
(fbsd_insert_fork_catchpoint, fbsd_remove_fork_catchpoint)
(fbsd_insert_vfork_catchpoint, fbsd_remove_vfork_catchpoint)
(fbsd_post_startup_inferior, fbsd_post_attach)
(fbsd_insert_exec_catchpoint, fbsd_remove_exec_catchpoint)
(fbsd_set_syscall_catchpoint)
(super_xfer_partial, super_resume, super_wait)
(fbsd_supports_stopped_by_hw_breakpoint): Delete.
(fbsd_handle_debug_trap): Remove target_ops parameter.
(fbsd_nat_add_target): Delete.
* fbsd-nat.h: Include "inf-ptrace.h".
(fbsd_nat_add_target): Delete.
(USE_SIGTRAP_SIGINFO): Define.
(fbsd_nat_target): New class.
* amd64-bsd-nat.c (amd64bsd_fetch_inferior_registers)
(amd64bsd_store_inferior_registers): Remove target_ops parameter.
(amd64bsd_target): Delete.
* amd64-bsd-nat.h: New file.
* amd64-fbsd-nat.c: Include "amd64-bsd-nat.h" instead of
"x86-bsd-nat.h".
(amd64_fbsd_nat_target): New class.
(the_amd64_fbsd_nat_target): New.
(amd64fbsd_read_description): Refactor as method of
amd64_fbsd_nat_target.
(amd64_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New.
(_initialize_amd64fbsd_nat): Adjust to C++ification.
* amd64-nat.h (amd64bsd_target): Delete function declaration.
* i386-bsd-nat.c (i386bsd_fetch_inferior_registers)
(i386bsd_store_inferior_registers): Remove target_ops parameter.
(i386bsd_target): Delete.
* i386-bsd-nat.h (i386bsd_target): Delete function declaration.
(i386bsd_fetch_inferior_registers)
(i386bsd_store_inferior_registers): Declare.
(i386_bsd_nat_target): New class.
* i386-fbsd-nat.c (i386_fbsd_nat_target): New class.
(the_i386_fbsd_nat_target): New.
(i386fbsd_resume, i386fbsd_read_description): Refactor as
i386_fbsd_nat_target methods.
(i386_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New.
(_initialize_i386fbsd_nat): Adjust to C++ification.
* x86-bsd-nat.c (super_mourn_inferior): Delete.
(x86bsd_mourn_inferior, x86bsd_target): Delete.
(_initialize_x86_bsd_nat): Adjust to C++ification.
* x86-bsd-nat.h: Include "x86-nat.h".
(x86bsd_target): Delete declaration.
(x86bsd_nat_target): New class.
* aarch64-fbsd-nat.c (aarch64_fbsd_nat_target): New class.
(the_aarch64_fbsd_nat_target): New.
(aarch64_fbsd_fetch_inferior_registers)
(aarch64_fbsd_store_inferior_registers): Refactor as methods of
aarch64_fbsd_nat_target.
(_initialize_aarch64_fbsd_nat): Adjust to C++ification.
* alpha-bsd-nat.c (alpha_bsd_nat_target): New class.
(the_alpha_bsd_nat_target): New.
(alphabsd_fetch_inferior_registers)
(alphabsd_store_inferior_registers): Refactor as
alpha_bsd_nat_target methods.
(_initialize_alphabsd_nat): Refactor as methods of
alpha_bsd_nat_target.
* amd64-nbsd-nat.c: Include "amd64-bsd-nat.h".
(the_amd64_nbsd_nat_target): New.
(_initialize_amd64nbsd_nat): Adjust to C++ification.
* amd64-obsd-nat.c: Include "amd64-bsd-nat.h".
(the_amd64_obsd_nat_target): New.
(_initialize_amd64obsd_nat): Adjust to C++ification.
* arm-fbsd-nat.c (arm_fbsd_nat_target): New.
(the_arm_fbsd_nat_target): New.
(arm_fbsd_fetch_inferior_registers)
(arm_fbsd_store_inferior_registers, arm_fbsd_read_description):
(_initialize_arm_fbsd_nat): Refactor as methods of
arm_fbsd_nat_target.
(_initialize_arm_fbsd_nat): Adjust to C++ification.
* arm-nbsd-nat.c (arm_netbsd_nat_target): New class.
(the_arm_netbsd_nat_target): New.
(armnbsd_fetch_registers, armnbsd_store_registers): Refactor as
arm_netbsd_nat_target.
(_initialize_arm_netbsd_nat): Adjust to C++ification.
* hppa-nbsd-nat.c (hppa_nbsd_nat_target): New class.
(the_hppa_nbsd_nat_target): New.
(hppanbsd_fetch_registers, hppanbsd_store_registers): Refactor as
hppa_nbsd_nat_target methods.
(_initialize_hppanbsd_nat): Adjust to C++ification.
* hppa-obsd-nat.c (hppa_obsd_nat_target): New class.
(the_hppa_obsd_nat_target): New.
(hppaobsd_fetch_registers, hppaobsd_store_registers): Refactor as
methods of hppa_obsd_nat_target.
(_initialize_hppaobsd_nat): Adjust to C++ification. Use
add_target.
* i386-nbsd-nat.c (the_i386_nbsd_nat_target): New.
(_initialize_i386nbsd_nat): Adjust to C++ification. Use
add_target.
* i386-obsd-nat.c (the_i386_obsd_nat_target): New.
(_initialize_i386obsd_nat): Use add_target.
* m68k-bsd-nat.c (m68k_bsd_nat_target): New class.
(the_m68k_bsd_nat_target): New.
(m68kbsd_fetch_inferior_registers)
(m68kbsd_store_inferior_registers): Refactor as methods of
m68k_bsd_nat_target.
(_initialize_m68kbsd_nat): Adjust to C++ification.
* mips-fbsd-nat.c (mips_fbsd_nat_target): New class.
(the_mips_fbsd_nat_target): New.
(mips_fbsd_fetch_inferior_registers)
(mips_fbsd_store_inferior_registers): Refactor as methods of
mips_fbsd_nat_target.
(_initialize_mips_fbsd_nat): Adjust to C++ification. Use
add_target.
* mips-nbsd-nat.c (mips_nbsd_nat_target): New class.
(the_mips_nbsd_nat_target): New.
(mipsnbsd_fetch_inferior_registers)
(mipsnbsd_store_inferior_registers): Refactor as methods of
mips_nbsd_nat_target.
(_initialize_mipsnbsd_nat): Adjust to C++ification.
* mips64-obsd-nat.c (mips64_obsd_nat_target): New class.
(the_mips64_obsd_nat_target): New.
(mips64obsd_fetch_inferior_registers)
(mips64obsd_store_inferior_registers): Refactor as methods of
mips64_obsd_nat_target.
(_initialize_mips64obsd_nat): Adjust to C++ification. Use
add_target.
* nbsd-nat.c (nbsd_pid_to_exec_file): Refactor as method of
nbsd_nat_target.
* nbsd-nat.h: Include "inf-ptrace.h".
(nbsd_nat_target): New class.
* obsd-nat.c (obsd_pid_to_str, obsd_update_thread_list)
(obsd_wait): Refactor as methods of obsd_nat_target.
(obsd_add_target): Delete.
* obsd-nat.h: Include "inf-ptrace.h".
(obsd_nat_target): New class.
* ppc-fbsd-nat.c (ppc_fbsd_nat_target): New class.
(the_ppc_fbsd_nat_target): New.
(ppcfbsd_fetch_inferior_registers)
(ppcfbsd_store_inferior_registers): Refactor as methods of
ppc_fbsd_nat_target.
(_initialize_ppcfbsd_nat): Adjust to C++ification. Use
add_target.
* ppc-nbsd-nat.c (ppc_nbsd_nat_target): New class.
(the_ppc_nbsd_nat_target): New.
(ppcnbsd_fetch_inferior_registers)
(ppcnbsd_store_inferior_registers): Refactor as methods of
ppc_nbsd_nat_target.
(_initialize_ppcnbsd_nat): Adjust to C++ification.
* ppc-obsd-nat.c (ppc_obsd_nat_target): New class.
(the_ppc_obsd_nat_target): New.
(ppcobsd_fetch_registers, ppcobsd_store_registers): Refactor as
methods of ppc_obsd_nat_target.
(_initialize_ppcobsd_nat): Adjust to C++ification. Use
add_target.
* sh-nbsd-nat.c (sh_nbsd_nat_target): New class.
(the_sh_nbsd_nat_target): New.
(shnbsd_fetch_inferior_registers)
(shnbsd_store_inferior_registers): Refactor as methods of
sh_nbsd_nat_target.
(_initialize_shnbsd_nat): Adjust to C++ification.
* sparc-nat.c (sparc_xfer_wcookie): Make extern.
(inf_ptrace_xfer_partial): Delete.
(sparc_xfer_partial, sparc_target): Delete.
* sparc-nat.h (sparc_fetch_inferior_registers)
(sparc_store_inferior_registers, sparc_xfer_wcookie): Declare.
(sparc_target): Delete function declaration.
(sparc_target): New template class.
* sparc-nbsd-nat.c (the_sparc_nbsd_nat_target): New.
(_initialize_sparcnbsd_nat): Adjust to C++ification.
* sparc64-fbsd-nat.c (the_sparc64_fbsd_nat_target): New.
(_initialize_sparc64fbsd_nat): Adjust to C++ification. Use
add_target.
* sparc64-nbsd-nat.c (the_sparc64_nbsd_nat_target): New.
(_initialize_sparc64nbsd_nat): Adjust to C++ification.
* sparc64-obsd-nat.c (the_sparc64_obsd_nat_target): New.
(_initialize_sparc64obsd_nat): Adjust to C++ification. Use
add_target.
* vax-bsd-nat.c (vax_bsd_nat_target): New class.
(the_vax_bsd_nat_target): New.
(vaxbsd_fetch_inferior_registers)
(vaxbsd_store_inferior_registers): Refactor as vax_bsd_nat_target
methods.
(_initialize_vaxbsd_nat): Adjust to C++ification.
* bsd-kvm.c (bsd_kvm_target): New class.
(bsd_kvm_ops): Now a bsd_kvm_target.
(bsd_kvm_open, bsd_kvm_close, bsd_kvm_xfer_partial)
(bsd_kvm_files_info, bsd_kvm_fetch_registers)
(bsd_kvm_thread_alive, bsd_kvm_pid_to_str): Refactor as methods of
bsd_kvm_target.
(bsd_kvm_return_one): Delete.
(bsd_kvm_add_target): Adjust to C++ification.
* nto-procfs.c (nto_procfs_target, nto_procfs_target_native)
(nto_procfs_target_procfs): New classes.
(procfs_open_1, procfs_thread_alive, procfs_update_thread_list)
(procfs_files_info, procfs_pid_to_exec_file, procfs_attach)
(procfs_post_attach, procfs_wait, procfs_fetch_registers)
(procfs_xfer_partial, procfs_detach, procfs_insert_breakpoint)
(procfs_remove_breakpoint, procfs_insert_hw_breakpoint)
(procfs_remove_hw_breakpoint, procfs_resume)
(procfs_mourn_inferior, procfs_create_inferior, procfs_interrupt)
(procfs_kill_inferior, procfs_store_registers)
(procfs_pass_signals, procfs_pid_to_str, procfs_can_run): Refactor
as methods of nto_procfs_target.
(nto_procfs_ops): Now an nto_procfs_target_procfs.
(nto_native_ops): Delete.
(procfs_open, procfs_native_open): Delete.
(nto_native_ops): Now an nto_procfs_target_native.
(init_procfs_targets): Adjust to C++ification.
(procfs_can_use_hw_breakpoint, procfs_remove_hw_watchpoint)
(procfs_insert_hw_watchpoint, procfs_stopped_by_watchpoint):
Refactor as methods of nto_procfs_target.
* go32-nat.c (go32_nat_target): New class.
(the_go32_nat_target): New.
(go32_attach, go32_resume, go32_wait, go32_fetch_registers)
(go32_store_registers, go32_xfer_partial, go32_files_info)
(go32_kill_inferior, go32_create_inferior, go32_mourn_inferior)
(go32_terminal_init, go32_terminal_info, go32_terminal_inferior)
(go32_terminal_ours, go32_pass_ctrlc, go32_thread_alive)
(go32_pid_to_str): Refactor as methods of go32_nat_target.
(go32_target): Delete.
(_initialize_go32_nat): Adjust to C++ification.
* gnu-nat.c (gnu_wait, gnu_resume, gnu_kill_inferior)
(gnu_mourn_inferior, gnu_create_inferior, gnu_attach, gnu_detach)
(gnu_stop, gnu_thread_alive, gnu_xfer_partial)
(gnu_find_memory_regions, gnu_pid_to_str): Refactor as methods of
gnu_nat_target.
(gnu_target): Delete.
* gnu-nat.h (gnu_target): Delete.
(gnu_nat_target): New class.
* i386-gnu-nat.c (gnu_base_target): New.
(i386_gnu_nat_target): New class.
(the_i386_gnu_nat_target): New.
(_initialize_i386gnu_nat): Adjust to C++ification.
gdb/testsuite/ChangeLog:
2018-05-02 Pedro Alves <palves@redhat.com>
* gdb.base/breakpoint-in-ro-region.exp: Adjust to to_resume and
to_log_command renames.
* gdb.base/sss-bp-on-user-bp-2.exp: Likewise.
1869 lines
51 KiB
C
1869 lines
51 KiB
C
/* Cache and manage the values of registers for GDB, the GNU debugger.
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Copyright (C) 1986-2018 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "inferior.h"
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#include "target.h"
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#include "gdbarch.h"
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#include "gdbcmd.h"
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#include "regcache.h"
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#include "reggroups.h"
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#include "observable.h"
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#include "regset.h"
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#include <forward_list>
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/*
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* DATA STRUCTURE
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*
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* Here is the actual register cache.
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*/
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/* Per-architecture object describing the layout of a register cache.
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Computed once when the architecture is created. */
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struct gdbarch_data *regcache_descr_handle;
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struct regcache_descr
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{
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/* The architecture this descriptor belongs to. */
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struct gdbarch *gdbarch;
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/* The raw register cache. Each raw (or hard) register is supplied
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by the target interface. The raw cache should not contain
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redundant information - if the PC is constructed from two
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registers then those registers and not the PC lives in the raw
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cache. */
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long sizeof_raw_registers;
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/* The cooked register space. Each cooked register in the range
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[0..NR_RAW_REGISTERS) is direct-mapped onto the corresponding raw
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register. The remaining [NR_RAW_REGISTERS
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.. NR_COOKED_REGISTERS) (a.k.a. pseudo registers) are mapped onto
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both raw registers and memory by the architecture methods
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gdbarch_pseudo_register_read and gdbarch_pseudo_register_write. */
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int nr_cooked_registers;
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long sizeof_cooked_registers;
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/* Offset and size (in 8 bit bytes), of each register in the
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register cache. All registers (including those in the range
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[NR_RAW_REGISTERS .. NR_COOKED_REGISTERS) are given an
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offset. */
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long *register_offset;
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long *sizeof_register;
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/* Cached table containing the type of each register. */
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struct type **register_type;
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};
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static void *
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init_regcache_descr (struct gdbarch *gdbarch)
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{
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int i;
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struct regcache_descr *descr;
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gdb_assert (gdbarch != NULL);
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/* Create an initial, zero filled, table. */
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descr = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct regcache_descr);
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descr->gdbarch = gdbarch;
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/* Total size of the register space. The raw registers are mapped
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directly onto the raw register cache while the pseudo's are
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either mapped onto raw-registers or memory. */
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descr->nr_cooked_registers = gdbarch_num_regs (gdbarch)
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+ gdbarch_num_pseudo_regs (gdbarch);
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/* Fill in a table of register types. */
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descr->register_type
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= GDBARCH_OBSTACK_CALLOC (gdbarch, descr->nr_cooked_registers,
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struct type *);
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for (i = 0; i < descr->nr_cooked_registers; i++)
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descr->register_type[i] = gdbarch_register_type (gdbarch, i);
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/* Construct a strictly RAW register cache. Don't allow pseudo's
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into the register cache. */
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/* Lay out the register cache.
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NOTE: cagney/2002-05-22: Only register_type() is used when
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constructing the register cache. It is assumed that the
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register's raw size, virtual size and type length are all the
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same. */
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{
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long offset = 0;
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descr->sizeof_register
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= GDBARCH_OBSTACK_CALLOC (gdbarch, descr->nr_cooked_registers, long);
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descr->register_offset
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= GDBARCH_OBSTACK_CALLOC (gdbarch, descr->nr_cooked_registers, long);
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for (i = 0; i < gdbarch_num_regs (gdbarch); i++)
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{
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descr->sizeof_register[i] = TYPE_LENGTH (descr->register_type[i]);
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descr->register_offset[i] = offset;
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offset += descr->sizeof_register[i];
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}
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/* Set the real size of the raw register cache buffer. */
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descr->sizeof_raw_registers = offset;
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for (; i < descr->nr_cooked_registers; i++)
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{
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descr->sizeof_register[i] = TYPE_LENGTH (descr->register_type[i]);
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descr->register_offset[i] = offset;
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offset += descr->sizeof_register[i];
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}
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/* Set the real size of the readonly register cache buffer. */
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descr->sizeof_cooked_registers = offset;
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}
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return descr;
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}
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static struct regcache_descr *
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regcache_descr (struct gdbarch *gdbarch)
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{
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return (struct regcache_descr *) gdbarch_data (gdbarch,
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regcache_descr_handle);
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}
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/* Utility functions returning useful register attributes stored in
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the regcache descr. */
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struct type *
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register_type (struct gdbarch *gdbarch, int regnum)
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{
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struct regcache_descr *descr = regcache_descr (gdbarch);
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gdb_assert (regnum >= 0 && regnum < descr->nr_cooked_registers);
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return descr->register_type[regnum];
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}
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/* Utility functions returning useful register attributes stored in
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the regcache descr. */
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int
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register_size (struct gdbarch *gdbarch, int regnum)
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{
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struct regcache_descr *descr = regcache_descr (gdbarch);
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int size;
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gdb_assert (regnum >= 0
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&& regnum < (gdbarch_num_regs (gdbarch)
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+ gdbarch_num_pseudo_regs (gdbarch)));
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size = descr->sizeof_register[regnum];
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return size;
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}
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/* See common/common-regcache.h. */
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int
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regcache_register_size (const struct regcache *regcache, int n)
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{
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return register_size (regcache->arch (), n);
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}
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reg_buffer::reg_buffer (gdbarch *gdbarch, bool has_pseudo)
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: m_has_pseudo (has_pseudo)
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{
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gdb_assert (gdbarch != NULL);
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m_descr = regcache_descr (gdbarch);
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if (has_pseudo)
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{
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m_registers = XCNEWVEC (gdb_byte, m_descr->sizeof_cooked_registers);
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m_register_status = XCNEWVEC (signed char,
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m_descr->nr_cooked_registers);
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}
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else
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{
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m_registers = XCNEWVEC (gdb_byte, m_descr->sizeof_raw_registers);
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m_register_status = XCNEWVEC (signed char, gdbarch_num_regs (gdbarch));
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}
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}
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regcache::regcache (gdbarch *gdbarch, const address_space *aspace_)
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/* The register buffers. A read/write register cache can only hold
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[0 .. gdbarch_num_regs). */
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: detached_regcache (gdbarch, false), m_aspace (aspace_)
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{
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m_ptid = minus_one_ptid;
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}
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static enum register_status
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do_cooked_read (void *src, int regnum, gdb_byte *buf)
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{
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struct regcache *regcache = (struct regcache *) src;
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return regcache_cooked_read (regcache, regnum, buf);
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}
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readonly_detached_regcache::readonly_detached_regcache (const regcache &src)
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: readonly_detached_regcache (src.arch (), do_cooked_read, (void *) &src)
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{
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}
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gdbarch *
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reg_buffer::arch () const
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{
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return m_descr->gdbarch;
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}
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/* See regcache.h. */
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ptid_t
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regcache_get_ptid (const struct regcache *regcache)
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{
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gdb_assert (!ptid_equal (regcache->ptid (), minus_one_ptid));
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return regcache->ptid ();
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}
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/* Cleanup class for invalidating a register. */
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class regcache_invalidator
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{
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public:
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regcache_invalidator (struct regcache *regcache, int regnum)
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: m_regcache (regcache),
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m_regnum (regnum)
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{
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}
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~regcache_invalidator ()
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{
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if (m_regcache != nullptr)
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regcache_invalidate (m_regcache, m_regnum);
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}
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DISABLE_COPY_AND_ASSIGN (regcache_invalidator);
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void release ()
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{
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m_regcache = nullptr;
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}
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private:
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struct regcache *m_regcache;
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int m_regnum;
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};
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/* Return a pointer to register REGNUM's buffer cache. */
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gdb_byte *
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reg_buffer::register_buffer (int regnum) const
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{
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return m_registers + m_descr->register_offset[regnum];
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}
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void
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reg_buffer::save (regcache_cooked_read_ftype *cooked_read,
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void *src)
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{
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struct gdbarch *gdbarch = m_descr->gdbarch;
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int regnum;
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/* It should have pseudo registers. */
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gdb_assert (m_has_pseudo);
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/* Clear the dest. */
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memset (m_registers, 0, m_descr->sizeof_cooked_registers);
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memset (m_register_status, 0, m_descr->nr_cooked_registers);
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/* Copy over any registers (identified by their membership in the
|
|
save_reggroup) and mark them as valid. The full [0 .. gdbarch_num_regs +
|
|
gdbarch_num_pseudo_regs) range is checked since some architectures need
|
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to save/restore `cooked' registers that live in memory. */
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for (regnum = 0; regnum < m_descr->nr_cooked_registers; regnum++)
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{
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if (gdbarch_register_reggroup_p (gdbarch, regnum, save_reggroup))
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{
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gdb_byte *dst_buf = register_buffer (regnum);
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enum register_status status = cooked_read (src, regnum, dst_buf);
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gdb_assert (status != REG_UNKNOWN);
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|
|
if (status != REG_VALID)
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memset (dst_buf, 0, register_size (gdbarch, regnum));
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m_register_status[regnum] = status;
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}
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}
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}
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|
|
void
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regcache::restore (readonly_detached_regcache *src)
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|
{
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|
struct gdbarch *gdbarch = m_descr->gdbarch;
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int regnum;
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|
|
gdb_assert (src != NULL);
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gdb_assert (src->m_has_pseudo);
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gdb_assert (gdbarch == src->arch ());
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|
|
/* Copy over any registers, being careful to only restore those that
|
|
were both saved and need to be restored. The full [0 .. gdbarch_num_regs
|
|
+ gdbarch_num_pseudo_regs) range is checked since some architectures need
|
|
to save/restore `cooked' registers that live in memory. */
|
|
for (regnum = 0; regnum < m_descr->nr_cooked_registers; regnum++)
|
|
{
|
|
if (gdbarch_register_reggroup_p (gdbarch, regnum, restore_reggroup))
|
|
{
|
|
if (src->m_register_status[regnum] == REG_VALID)
|
|
cooked_write (regnum, src->register_buffer (regnum));
|
|
}
|
|
}
|
|
}
|
|
|
|
enum register_status
|
|
regcache_register_status (const struct regcache *regcache, int regnum)
|
|
{
|
|
gdb_assert (regcache != NULL);
|
|
return regcache->get_register_status (regnum);
|
|
}
|
|
|
|
enum register_status
|
|
reg_buffer::get_register_status (int regnum) const
|
|
{
|
|
assert_regnum (regnum);
|
|
|
|
return (enum register_status) m_register_status[regnum];
|
|
}
|
|
|
|
void
|
|
regcache_invalidate (struct regcache *regcache, int regnum)
|
|
{
|
|
gdb_assert (regcache != NULL);
|
|
regcache->invalidate (regnum);
|
|
}
|
|
|
|
void
|
|
detached_regcache::invalidate (int regnum)
|
|
{
|
|
assert_regnum (regnum);
|
|
m_register_status[regnum] = REG_UNKNOWN;
|
|
}
|
|
|
|
void
|
|
reg_buffer::assert_regnum (int regnum) const
|
|
{
|
|
gdb_assert (regnum >= 0);
|
|
if (m_has_pseudo)
|
|
gdb_assert (regnum < m_descr->nr_cooked_registers);
|
|
else
|
|
gdb_assert (regnum < gdbarch_num_regs (arch ()));
|
|
}
|
|
|
|
/* Global structure containing the current regcache. */
|
|
|
|
/* NOTE: this is a write-through cache. There is no "dirty" bit for
|
|
recording if the register values have been changed (eg. by the
|
|
user). Therefore all registers must be written back to the
|
|
target when appropriate. */
|
|
std::forward_list<regcache *> regcache::current_regcache;
|
|
|
|
struct regcache *
|
|
get_thread_arch_aspace_regcache (ptid_t ptid, struct gdbarch *gdbarch,
|
|
struct address_space *aspace)
|
|
{
|
|
for (const auto ®cache : regcache::current_regcache)
|
|
if (ptid_equal (regcache->ptid (), ptid) && regcache->arch () == gdbarch)
|
|
return regcache;
|
|
|
|
regcache *new_regcache = new regcache (gdbarch, aspace);
|
|
|
|
regcache::current_regcache.push_front (new_regcache);
|
|
new_regcache->set_ptid (ptid);
|
|
|
|
return new_regcache;
|
|
}
|
|
|
|
struct regcache *
|
|
get_thread_arch_regcache (ptid_t ptid, struct gdbarch *gdbarch)
|
|
{
|
|
address_space *aspace = target_thread_address_space (ptid);
|
|
|
|
return get_thread_arch_aspace_regcache (ptid, gdbarch, aspace);
|
|
}
|
|
|
|
static ptid_t current_thread_ptid;
|
|
static struct gdbarch *current_thread_arch;
|
|
|
|
struct regcache *
|
|
get_thread_regcache (ptid_t ptid)
|
|
{
|
|
if (!current_thread_arch || !ptid_equal (current_thread_ptid, ptid))
|
|
{
|
|
current_thread_ptid = ptid;
|
|
current_thread_arch = target_thread_architecture (ptid);
|
|
}
|
|
|
|
return get_thread_arch_regcache (ptid, current_thread_arch);
|
|
}
|
|
|
|
struct regcache *
|
|
get_current_regcache (void)
|
|
{
|
|
return get_thread_regcache (inferior_ptid);
|
|
}
|
|
|
|
/* See common/common-regcache.h. */
|
|
|
|
struct regcache *
|
|
get_thread_regcache_for_ptid (ptid_t ptid)
|
|
{
|
|
return get_thread_regcache (ptid);
|
|
}
|
|
|
|
/* Observer for the target_changed event. */
|
|
|
|
static void
|
|
regcache_observer_target_changed (struct target_ops *target)
|
|
{
|
|
registers_changed ();
|
|
}
|
|
|
|
/* Update global variables old ptids to hold NEW_PTID if they were
|
|
holding OLD_PTID. */
|
|
void
|
|
regcache::regcache_thread_ptid_changed (ptid_t old_ptid, ptid_t new_ptid)
|
|
{
|
|
for (auto ®cache : regcache::current_regcache)
|
|
{
|
|
if (ptid_equal (regcache->ptid (), old_ptid))
|
|
regcache->set_ptid (new_ptid);
|
|
}
|
|
}
|
|
|
|
/* Low level examining and depositing of registers.
|
|
|
|
The caller is responsible for making sure that the inferior is
|
|
stopped before calling the fetching routines, or it will get
|
|
garbage. (a change from GDB version 3, in which the caller got the
|
|
value from the last stop). */
|
|
|
|
/* REGISTERS_CHANGED ()
|
|
|
|
Indicate that registers may have changed, so invalidate the cache. */
|
|
|
|
void
|
|
registers_changed_ptid (ptid_t ptid)
|
|
{
|
|
for (auto oit = regcache::current_regcache.before_begin (),
|
|
it = std::next (oit);
|
|
it != regcache::current_regcache.end ();
|
|
)
|
|
{
|
|
if (ptid_match ((*it)->ptid (), ptid))
|
|
{
|
|
delete *it;
|
|
it = regcache::current_regcache.erase_after (oit);
|
|
}
|
|
else
|
|
oit = it++;
|
|
}
|
|
|
|
if (ptid_match (current_thread_ptid, ptid))
|
|
{
|
|
current_thread_ptid = null_ptid;
|
|
current_thread_arch = NULL;
|
|
}
|
|
|
|
if (ptid_match (inferior_ptid, ptid))
|
|
{
|
|
/* We just deleted the regcache of the current thread. Need to
|
|
forget about any frames we have cached, too. */
|
|
reinit_frame_cache ();
|
|
}
|
|
}
|
|
|
|
void
|
|
registers_changed (void)
|
|
{
|
|
registers_changed_ptid (minus_one_ptid);
|
|
|
|
/* Force cleanup of any alloca areas if using C alloca instead of
|
|
a builtin alloca. This particular call is used to clean up
|
|
areas allocated by low level target code which may build up
|
|
during lengthy interactions between gdb and the target before
|
|
gdb gives control to the user (ie watchpoints). */
|
|
alloca (0);
|
|
}
|
|
|
|
void
|
|
regcache_raw_update (struct regcache *regcache, int regnum)
|
|
{
|
|
gdb_assert (regcache != NULL);
|
|
|
|
regcache->raw_update (regnum);
|
|
}
|
|
|
|
void
|
|
regcache::raw_update (int regnum)
|
|
{
|
|
assert_regnum (regnum);
|
|
|
|
/* Make certain that the register cache is up-to-date with respect
|
|
to the current thread. This switching shouldn't be necessary
|
|
only there is still only one target side register cache. Sigh!
|
|
On the bright side, at least there is a regcache object. */
|
|
|
|
if (get_register_status (regnum) == REG_UNKNOWN)
|
|
{
|
|
target_fetch_registers (this, regnum);
|
|
|
|
/* A number of targets can't access the whole set of raw
|
|
registers (because the debug API provides no means to get at
|
|
them). */
|
|
if (m_register_status[regnum] == REG_UNKNOWN)
|
|
m_register_status[regnum] = REG_UNAVAILABLE;
|
|
}
|
|
}
|
|
|
|
enum register_status
|
|
regcache_raw_read (struct regcache *regcache, int regnum, gdb_byte *buf)
|
|
{
|
|
return regcache->raw_read (regnum, buf);
|
|
}
|
|
|
|
enum register_status
|
|
readable_regcache::raw_read (int regnum, gdb_byte *buf)
|
|
{
|
|
gdb_assert (buf != NULL);
|
|
raw_update (regnum);
|
|
|
|
if (m_register_status[regnum] != REG_VALID)
|
|
memset (buf, 0, m_descr->sizeof_register[regnum]);
|
|
else
|
|
memcpy (buf, register_buffer (regnum),
|
|
m_descr->sizeof_register[regnum]);
|
|
|
|
return (enum register_status) m_register_status[regnum];
|
|
}
|
|
|
|
enum register_status
|
|
regcache_raw_read_signed (struct regcache *regcache, int regnum, LONGEST *val)
|
|
{
|
|
gdb_assert (regcache != NULL);
|
|
return regcache->raw_read (regnum, val);
|
|
}
|
|
|
|
template<typename T, typename>
|
|
enum register_status
|
|
readable_regcache::raw_read (int regnum, T *val)
|
|
{
|
|
gdb_byte *buf;
|
|
enum register_status status;
|
|
|
|
assert_regnum (regnum);
|
|
buf = (gdb_byte *) alloca (m_descr->sizeof_register[regnum]);
|
|
status = raw_read (regnum, buf);
|
|
if (status == REG_VALID)
|
|
*val = extract_integer<T> (buf,
|
|
m_descr->sizeof_register[regnum],
|
|
gdbarch_byte_order (m_descr->gdbarch));
|
|
else
|
|
*val = 0;
|
|
return status;
|
|
}
|
|
|
|
enum register_status
|
|
regcache_raw_read_unsigned (struct regcache *regcache, int regnum,
|
|
ULONGEST *val)
|
|
{
|
|
gdb_assert (regcache != NULL);
|
|
return regcache->raw_read (regnum, val);
|
|
}
|
|
|
|
void
|
|
regcache_raw_write_signed (struct regcache *regcache, int regnum, LONGEST val)
|
|
{
|
|
gdb_assert (regcache != NULL);
|
|
regcache->raw_write (regnum, val);
|
|
}
|
|
|
|
template<typename T, typename>
|
|
void
|
|
regcache::raw_write (int regnum, T val)
|
|
{
|
|
gdb_byte *buf;
|
|
|
|
assert_regnum (regnum);
|
|
buf = (gdb_byte *) alloca (m_descr->sizeof_register[regnum]);
|
|
store_integer (buf, m_descr->sizeof_register[regnum],
|
|
gdbarch_byte_order (m_descr->gdbarch), val);
|
|
raw_write (regnum, buf);
|
|
}
|
|
|
|
void
|
|
regcache_raw_write_unsigned (struct regcache *regcache, int regnum,
|
|
ULONGEST val)
|
|
{
|
|
gdb_assert (regcache != NULL);
|
|
regcache->raw_write (regnum, val);
|
|
}
|
|
|
|
LONGEST
|
|
regcache_raw_get_signed (struct regcache *regcache, int regnum)
|
|
{
|
|
LONGEST value;
|
|
enum register_status status;
|
|
|
|
status = regcache_raw_read_signed (regcache, regnum, &value);
|
|
if (status == REG_UNAVAILABLE)
|
|
throw_error (NOT_AVAILABLE_ERROR,
|
|
_("Register %d is not available"), regnum);
|
|
return value;
|
|
}
|
|
|
|
enum register_status
|
|
regcache_cooked_read (struct regcache *regcache, int regnum, gdb_byte *buf)
|
|
{
|
|
return regcache->cooked_read (regnum, buf);
|
|
}
|
|
|
|
enum register_status
|
|
readable_regcache::cooked_read (int regnum, gdb_byte *buf)
|
|
{
|
|
gdb_assert (regnum >= 0);
|
|
gdb_assert (regnum < m_descr->nr_cooked_registers);
|
|
if (regnum < num_raw_registers ())
|
|
return raw_read (regnum, buf);
|
|
else if (m_has_pseudo
|
|
&& m_register_status[regnum] != REG_UNKNOWN)
|
|
{
|
|
if (m_register_status[regnum] == REG_VALID)
|
|
memcpy (buf, register_buffer (regnum),
|
|
m_descr->sizeof_register[regnum]);
|
|
else
|
|
memset (buf, 0, m_descr->sizeof_register[regnum]);
|
|
|
|
return (enum register_status) m_register_status[regnum];
|
|
}
|
|
else if (gdbarch_pseudo_register_read_value_p (m_descr->gdbarch))
|
|
{
|
|
struct value *mark, *computed;
|
|
enum register_status result = REG_VALID;
|
|
|
|
mark = value_mark ();
|
|
|
|
computed = gdbarch_pseudo_register_read_value (m_descr->gdbarch,
|
|
this, regnum);
|
|
if (value_entirely_available (computed))
|
|
memcpy (buf, value_contents_raw (computed),
|
|
m_descr->sizeof_register[regnum]);
|
|
else
|
|
{
|
|
memset (buf, 0, m_descr->sizeof_register[regnum]);
|
|
result = REG_UNAVAILABLE;
|
|
}
|
|
|
|
value_free_to_mark (mark);
|
|
|
|
return result;
|
|
}
|
|
else
|
|
return gdbarch_pseudo_register_read (m_descr->gdbarch, this,
|
|
regnum, buf);
|
|
}
|
|
|
|
struct value *
|
|
regcache_cooked_read_value (struct regcache *regcache, int regnum)
|
|
{
|
|
return regcache->cooked_read_value (regnum);
|
|
}
|
|
|
|
struct value *
|
|
readable_regcache::cooked_read_value (int regnum)
|
|
{
|
|
gdb_assert (regnum >= 0);
|
|
gdb_assert (regnum < m_descr->nr_cooked_registers);
|
|
|
|
if (regnum < num_raw_registers ()
|
|
|| (m_has_pseudo && m_register_status[regnum] != REG_UNKNOWN)
|
|
|| !gdbarch_pseudo_register_read_value_p (m_descr->gdbarch))
|
|
{
|
|
struct value *result;
|
|
|
|
result = allocate_value (register_type (m_descr->gdbarch, regnum));
|
|
VALUE_LVAL (result) = lval_register;
|
|
VALUE_REGNUM (result) = regnum;
|
|
|
|
/* It is more efficient in general to do this delegation in this
|
|
direction than in the other one, even though the value-based
|
|
API is preferred. */
|
|
if (cooked_read (regnum,
|
|
value_contents_raw (result)) == REG_UNAVAILABLE)
|
|
mark_value_bytes_unavailable (result, 0,
|
|
TYPE_LENGTH (value_type (result)));
|
|
|
|
return result;
|
|
}
|
|
else
|
|
return gdbarch_pseudo_register_read_value (m_descr->gdbarch,
|
|
this, regnum);
|
|
}
|
|
|
|
enum register_status
|
|
regcache_cooked_read_signed (struct regcache *regcache, int regnum,
|
|
LONGEST *val)
|
|
{
|
|
gdb_assert (regcache != NULL);
|
|
return regcache->cooked_read (regnum, val);
|
|
}
|
|
|
|
template<typename T, typename>
|
|
enum register_status
|
|
readable_regcache::cooked_read (int regnum, T *val)
|
|
{
|
|
enum register_status status;
|
|
gdb_byte *buf;
|
|
|
|
gdb_assert (regnum >= 0 && regnum < m_descr->nr_cooked_registers);
|
|
buf = (gdb_byte *) alloca (m_descr->sizeof_register[regnum]);
|
|
status = cooked_read (regnum, buf);
|
|
if (status == REG_VALID)
|
|
*val = extract_integer<T> (buf, m_descr->sizeof_register[regnum],
|
|
gdbarch_byte_order (m_descr->gdbarch));
|
|
else
|
|
*val = 0;
|
|
return status;
|
|
}
|
|
|
|
enum register_status
|
|
regcache_cooked_read_unsigned (struct regcache *regcache, int regnum,
|
|
ULONGEST *val)
|
|
{
|
|
gdb_assert (regcache != NULL);
|
|
return regcache->cooked_read (regnum, val);
|
|
}
|
|
|
|
void
|
|
regcache_cooked_write_signed (struct regcache *regcache, int regnum,
|
|
LONGEST val)
|
|
{
|
|
gdb_assert (regcache != NULL);
|
|
regcache->cooked_write (regnum, val);
|
|
}
|
|
|
|
template<typename T, typename>
|
|
void
|
|
regcache::cooked_write (int regnum, T val)
|
|
{
|
|
gdb_byte *buf;
|
|
|
|
gdb_assert (regnum >=0 && regnum < m_descr->nr_cooked_registers);
|
|
buf = (gdb_byte *) alloca (m_descr->sizeof_register[regnum]);
|
|
store_integer (buf, m_descr->sizeof_register[regnum],
|
|
gdbarch_byte_order (m_descr->gdbarch), val);
|
|
cooked_write (regnum, buf);
|
|
}
|
|
|
|
void
|
|
regcache_cooked_write_unsigned (struct regcache *regcache, int regnum,
|
|
ULONGEST val)
|
|
{
|
|
gdb_assert (regcache != NULL);
|
|
regcache->cooked_write (regnum, val);
|
|
}
|
|
|
|
void
|
|
regcache_raw_write (struct regcache *regcache, int regnum,
|
|
const gdb_byte *buf)
|
|
{
|
|
gdb_assert (regcache != NULL && buf != NULL);
|
|
regcache->raw_write (regnum, buf);
|
|
}
|
|
|
|
void
|
|
regcache::raw_write (int regnum, const gdb_byte *buf)
|
|
{
|
|
|
|
gdb_assert (buf != NULL);
|
|
assert_regnum (regnum);
|
|
|
|
/* On the sparc, writing %g0 is a no-op, so we don't even want to
|
|
change the registers array if something writes to this register. */
|
|
if (gdbarch_cannot_store_register (arch (), regnum))
|
|
return;
|
|
|
|
/* If we have a valid copy of the register, and new value == old
|
|
value, then don't bother doing the actual store. */
|
|
if (get_register_status (regnum) == REG_VALID
|
|
&& (memcmp (register_buffer (regnum), buf,
|
|
m_descr->sizeof_register[regnum]) == 0))
|
|
return;
|
|
|
|
target_prepare_to_store (this);
|
|
raw_supply (regnum, buf);
|
|
|
|
/* Invalidate the register after it is written, in case of a
|
|
failure. */
|
|
regcache_invalidator invalidator (this, regnum);
|
|
|
|
target_store_registers (this, regnum);
|
|
|
|
/* The target did not throw an error so we can discard invalidating
|
|
the register. */
|
|
invalidator.release ();
|
|
}
|
|
|
|
void
|
|
regcache_cooked_write (struct regcache *regcache, int regnum,
|
|
const gdb_byte *buf)
|
|
{
|
|
regcache->cooked_write (regnum, buf);
|
|
}
|
|
|
|
void
|
|
regcache::cooked_write (int regnum, const gdb_byte *buf)
|
|
{
|
|
gdb_assert (regnum >= 0);
|
|
gdb_assert (regnum < m_descr->nr_cooked_registers);
|
|
if (regnum < num_raw_registers ())
|
|
raw_write (regnum, buf);
|
|
else
|
|
gdbarch_pseudo_register_write (m_descr->gdbarch, this,
|
|
regnum, buf);
|
|
}
|
|
|
|
/* Perform a partial register transfer using a read, modify, write
|
|
operation. */
|
|
|
|
typedef void (regcache_read_ftype) (struct regcache *regcache, int regnum,
|
|
void *buf);
|
|
typedef void (regcache_write_ftype) (struct regcache *regcache, int regnum,
|
|
const void *buf);
|
|
|
|
enum register_status
|
|
readable_regcache::read_part (int regnum, int offset, int len, void *in,
|
|
bool is_raw)
|
|
{
|
|
struct gdbarch *gdbarch = arch ();
|
|
gdb_byte *reg = (gdb_byte *) alloca (register_size (gdbarch, regnum));
|
|
|
|
gdb_assert (in != NULL);
|
|
gdb_assert (offset >= 0 && offset <= m_descr->sizeof_register[regnum]);
|
|
gdb_assert (len >= 0 && offset + len <= m_descr->sizeof_register[regnum]);
|
|
/* Something to do? */
|
|
if (offset + len == 0)
|
|
return REG_VALID;
|
|
/* Read (when needed) ... */
|
|
enum register_status status;
|
|
|
|
if (is_raw)
|
|
status = raw_read (regnum, reg);
|
|
else
|
|
status = cooked_read (regnum, reg);
|
|
if (status != REG_VALID)
|
|
return status;
|
|
|
|
/* ... modify ... */
|
|
memcpy (in, reg + offset, len);
|
|
|
|
return REG_VALID;
|
|
}
|
|
|
|
enum register_status
|
|
regcache::write_part (int regnum, int offset, int len,
|
|
const void *out, bool is_raw)
|
|
{
|
|
struct gdbarch *gdbarch = arch ();
|
|
gdb_byte *reg = (gdb_byte *) alloca (register_size (gdbarch, regnum));
|
|
|
|
gdb_assert (out != NULL);
|
|
gdb_assert (offset >= 0 && offset <= m_descr->sizeof_register[regnum]);
|
|
gdb_assert (len >= 0 && offset + len <= m_descr->sizeof_register[regnum]);
|
|
/* Something to do? */
|
|
if (offset + len == 0)
|
|
return REG_VALID;
|
|
/* Read (when needed) ... */
|
|
if (offset > 0
|
|
|| offset + len < m_descr->sizeof_register[regnum])
|
|
{
|
|
enum register_status status;
|
|
|
|
if (is_raw)
|
|
status = raw_read (regnum, reg);
|
|
else
|
|
status = cooked_read (regnum, reg);
|
|
if (status != REG_VALID)
|
|
return status;
|
|
}
|
|
|
|
memcpy (reg + offset, out, len);
|
|
/* ... write (when needed). */
|
|
if (is_raw)
|
|
raw_write (regnum, reg);
|
|
else
|
|
cooked_write (regnum, reg);
|
|
|
|
return REG_VALID;
|
|
}
|
|
|
|
enum register_status
|
|
regcache_raw_read_part (struct regcache *regcache, int regnum,
|
|
int offset, int len, gdb_byte *buf)
|
|
{
|
|
return regcache->raw_read_part (regnum, offset, len, buf);
|
|
}
|
|
|
|
enum register_status
|
|
readable_regcache::raw_read_part (int regnum, int offset, int len, gdb_byte *buf)
|
|
{
|
|
assert_regnum (regnum);
|
|
return read_part (regnum, offset, len, buf, true);
|
|
}
|
|
|
|
void
|
|
regcache_raw_write_part (struct regcache *regcache, int regnum,
|
|
int offset, int len, const gdb_byte *buf)
|
|
{
|
|
regcache->raw_write_part (regnum, offset, len, buf);
|
|
}
|
|
|
|
void
|
|
regcache::raw_write_part (int regnum, int offset, int len,
|
|
const gdb_byte *buf)
|
|
{
|
|
assert_regnum (regnum);
|
|
write_part (regnum, offset, len, buf, true);
|
|
}
|
|
|
|
enum register_status
|
|
regcache_cooked_read_part (struct regcache *regcache, int regnum,
|
|
int offset, int len, gdb_byte *buf)
|
|
{
|
|
return regcache->cooked_read_part (regnum, offset, len, buf);
|
|
}
|
|
|
|
|
|
enum register_status
|
|
readable_regcache::cooked_read_part (int regnum, int offset, int len,
|
|
gdb_byte *buf)
|
|
{
|
|
gdb_assert (regnum >= 0 && regnum < m_descr->nr_cooked_registers);
|
|
return read_part (regnum, offset, len, buf, false);
|
|
}
|
|
|
|
void
|
|
regcache_cooked_write_part (struct regcache *regcache, int regnum,
|
|
int offset, int len, const gdb_byte *buf)
|
|
{
|
|
regcache->cooked_write_part (regnum, offset, len, buf);
|
|
}
|
|
|
|
void
|
|
regcache::cooked_write_part (int regnum, int offset, int len,
|
|
const gdb_byte *buf)
|
|
{
|
|
gdb_assert (regnum >= 0 && regnum < m_descr->nr_cooked_registers);
|
|
write_part (regnum, offset, len, buf, false);
|
|
}
|
|
|
|
/* Supply register REGNUM, whose contents are stored in BUF, to REGCACHE. */
|
|
|
|
void
|
|
regcache_raw_supply (struct regcache *regcache, int regnum, const void *buf)
|
|
{
|
|
gdb_assert (regcache != NULL);
|
|
regcache->raw_supply (regnum, buf);
|
|
}
|
|
|
|
void
|
|
detached_regcache::raw_supply (int regnum, const void *buf)
|
|
{
|
|
void *regbuf;
|
|
size_t size;
|
|
|
|
assert_regnum (regnum);
|
|
|
|
regbuf = register_buffer (regnum);
|
|
size = m_descr->sizeof_register[regnum];
|
|
|
|
if (buf)
|
|
{
|
|
memcpy (regbuf, buf, size);
|
|
m_register_status[regnum] = REG_VALID;
|
|
}
|
|
else
|
|
{
|
|
/* This memset not strictly necessary, but better than garbage
|
|
in case the register value manages to escape somewhere (due
|
|
to a bug, no less). */
|
|
memset (regbuf, 0, size);
|
|
m_register_status[regnum] = REG_UNAVAILABLE;
|
|
}
|
|
}
|
|
|
|
/* Supply register REGNUM to REGCACHE. Value to supply is an integer stored at
|
|
address ADDR, in target endian, with length ADDR_LEN and sign IS_SIGNED. If
|
|
the register size is greater than ADDR_LEN, then the integer will be sign or
|
|
zero extended. If the register size is smaller than the integer, then the
|
|
most significant bytes of the integer will be truncated. */
|
|
|
|
void
|
|
detached_regcache::raw_supply_integer (int regnum, const gdb_byte *addr,
|
|
int addr_len, bool is_signed)
|
|
{
|
|
enum bfd_endian byte_order = gdbarch_byte_order (m_descr->gdbarch);
|
|
gdb_byte *regbuf;
|
|
size_t regsize;
|
|
|
|
assert_regnum (regnum);
|
|
|
|
regbuf = register_buffer (regnum);
|
|
regsize = m_descr->sizeof_register[regnum];
|
|
|
|
copy_integer_to_size (regbuf, regsize, addr, addr_len, is_signed,
|
|
byte_order);
|
|
m_register_status[regnum] = REG_VALID;
|
|
}
|
|
|
|
/* Supply register REGNUM with zeroed value to REGCACHE. This is not the same
|
|
as calling raw_supply with NULL (which will set the state to
|
|
unavailable). */
|
|
|
|
void
|
|
detached_regcache::raw_supply_zeroed (int regnum)
|
|
{
|
|
void *regbuf;
|
|
size_t size;
|
|
|
|
assert_regnum (regnum);
|
|
|
|
regbuf = register_buffer (regnum);
|
|
size = m_descr->sizeof_register[regnum];
|
|
|
|
memset (regbuf, 0, size);
|
|
m_register_status[regnum] = REG_VALID;
|
|
}
|
|
|
|
/* Collect register REGNUM from REGCACHE and store its contents in BUF. */
|
|
|
|
void
|
|
regcache_raw_collect (const struct regcache *regcache, int regnum, void *buf)
|
|
{
|
|
gdb_assert (regcache != NULL && buf != NULL);
|
|
regcache->raw_collect (regnum, buf);
|
|
}
|
|
|
|
void
|
|
regcache::raw_collect (int regnum, void *buf) const
|
|
{
|
|
const void *regbuf;
|
|
size_t size;
|
|
|
|
gdb_assert (buf != NULL);
|
|
assert_regnum (regnum);
|
|
|
|
regbuf = register_buffer (regnum);
|
|
size = m_descr->sizeof_register[regnum];
|
|
memcpy (buf, regbuf, size);
|
|
}
|
|
|
|
/* Transfer a single or all registers belonging to a certain register
|
|
set to or from a buffer. This is the main worker function for
|
|
regcache_supply_regset and regcache_collect_regset. */
|
|
|
|
/* Collect register REGNUM from REGCACHE. Store collected value as an integer
|
|
at address ADDR, in target endian, with length ADDR_LEN and sign IS_SIGNED.
|
|
If ADDR_LEN is greater than the register size, then the integer will be sign
|
|
or zero extended. If ADDR_LEN is smaller than the register size, then the
|
|
most significant bytes of the integer will be truncated. */
|
|
|
|
void
|
|
regcache::raw_collect_integer (int regnum, gdb_byte *addr, int addr_len,
|
|
bool is_signed) const
|
|
{
|
|
enum bfd_endian byte_order = gdbarch_byte_order (m_descr->gdbarch);
|
|
const gdb_byte *regbuf;
|
|
size_t regsize;
|
|
|
|
assert_regnum (regnum);
|
|
|
|
regbuf = register_buffer (regnum);
|
|
regsize = m_descr->sizeof_register[regnum];
|
|
|
|
copy_integer_to_size (addr, addr_len, regbuf, regsize, is_signed,
|
|
byte_order);
|
|
}
|
|
|
|
void
|
|
regcache::transfer_regset (const struct regset *regset,
|
|
struct regcache *out_regcache,
|
|
int regnum, const void *in_buf,
|
|
void *out_buf, size_t size) const
|
|
{
|
|
const struct regcache_map_entry *map;
|
|
int offs = 0, count;
|
|
|
|
for (map = (const struct regcache_map_entry *) regset->regmap;
|
|
(count = map->count) != 0;
|
|
map++)
|
|
{
|
|
int regno = map->regno;
|
|
int slot_size = map->size;
|
|
|
|
if (slot_size == 0 && regno != REGCACHE_MAP_SKIP)
|
|
slot_size = m_descr->sizeof_register[regno];
|
|
|
|
if (regno == REGCACHE_MAP_SKIP
|
|
|| (regnum != -1
|
|
&& (regnum < regno || regnum >= regno + count)))
|
|
offs += count * slot_size;
|
|
|
|
else if (regnum == -1)
|
|
for (; count--; regno++, offs += slot_size)
|
|
{
|
|
if (offs + slot_size > size)
|
|
break;
|
|
|
|
if (out_buf)
|
|
raw_collect (regno, (gdb_byte *) out_buf + offs);
|
|
else
|
|
out_regcache->raw_supply (regno, in_buf
|
|
? (const gdb_byte *) in_buf + offs
|
|
: NULL);
|
|
}
|
|
else
|
|
{
|
|
/* Transfer a single register and return. */
|
|
offs += (regnum - regno) * slot_size;
|
|
if (offs + slot_size > size)
|
|
return;
|
|
|
|
if (out_buf)
|
|
raw_collect (regnum, (gdb_byte *) out_buf + offs);
|
|
else
|
|
out_regcache->raw_supply (regnum, in_buf
|
|
? (const gdb_byte *) in_buf + offs
|
|
: NULL);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Supply register REGNUM from BUF to REGCACHE, using the register map
|
|
in REGSET. If REGNUM is -1, do this for all registers in REGSET.
|
|
If BUF is NULL, set the register(s) to "unavailable" status. */
|
|
|
|
void
|
|
regcache_supply_regset (const struct regset *regset,
|
|
struct regcache *regcache,
|
|
int regnum, const void *buf, size_t size)
|
|
{
|
|
regcache->supply_regset (regset, regnum, buf, size);
|
|
}
|
|
|
|
void
|
|
regcache::supply_regset (const struct regset *regset,
|
|
int regnum, const void *buf, size_t size)
|
|
{
|
|
transfer_regset (regset, this, regnum, buf, NULL, size);
|
|
}
|
|
|
|
/* Collect register REGNUM from REGCACHE to BUF, using the register
|
|
map in REGSET. If REGNUM is -1, do this for all registers in
|
|
REGSET. */
|
|
|
|
void
|
|
regcache_collect_regset (const struct regset *regset,
|
|
const struct regcache *regcache,
|
|
int regnum, void *buf, size_t size)
|
|
{
|
|
regcache->collect_regset (regset, regnum, buf, size);
|
|
}
|
|
|
|
void
|
|
regcache::collect_regset (const struct regset *regset,
|
|
int regnum, void *buf, size_t size) const
|
|
{
|
|
transfer_regset (regset, NULL, regnum, NULL, buf, size);
|
|
}
|
|
|
|
|
|
/* Special handling for register PC. */
|
|
|
|
CORE_ADDR
|
|
regcache_read_pc (struct regcache *regcache)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
|
|
CORE_ADDR pc_val;
|
|
|
|
if (gdbarch_read_pc_p (gdbarch))
|
|
pc_val = gdbarch_read_pc (gdbarch, regcache);
|
|
/* Else use per-frame method on get_current_frame. */
|
|
else if (gdbarch_pc_regnum (gdbarch) >= 0)
|
|
{
|
|
ULONGEST raw_val;
|
|
|
|
if (regcache_cooked_read_unsigned (regcache,
|
|
gdbarch_pc_regnum (gdbarch),
|
|
&raw_val) == REG_UNAVAILABLE)
|
|
throw_error (NOT_AVAILABLE_ERROR, _("PC register is not available"));
|
|
|
|
pc_val = gdbarch_addr_bits_remove (gdbarch, raw_val);
|
|
}
|
|
else
|
|
internal_error (__FILE__, __LINE__,
|
|
_("regcache_read_pc: Unable to find PC"));
|
|
return pc_val;
|
|
}
|
|
|
|
void
|
|
regcache_write_pc (struct regcache *regcache, CORE_ADDR pc)
|
|
{
|
|
struct gdbarch *gdbarch = regcache->arch ();
|
|
|
|
if (gdbarch_write_pc_p (gdbarch))
|
|
gdbarch_write_pc (gdbarch, regcache, pc);
|
|
else if (gdbarch_pc_regnum (gdbarch) >= 0)
|
|
regcache_cooked_write_unsigned (regcache,
|
|
gdbarch_pc_regnum (gdbarch), pc);
|
|
else
|
|
internal_error (__FILE__, __LINE__,
|
|
_("regcache_write_pc: Unable to update PC"));
|
|
|
|
/* Writing the PC (for instance, from "load") invalidates the
|
|
current frame. */
|
|
reinit_frame_cache ();
|
|
}
|
|
|
|
int
|
|
reg_buffer::num_raw_registers () const
|
|
{
|
|
return gdbarch_num_regs (arch ());
|
|
}
|
|
|
|
void
|
|
regcache::debug_print_register (const char *func, int regno)
|
|
{
|
|
struct gdbarch *gdbarch = arch ();
|
|
|
|
fprintf_unfiltered (gdb_stdlog, "%s ", func);
|
|
if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)
|
|
&& gdbarch_register_name (gdbarch, regno) != NULL
|
|
&& gdbarch_register_name (gdbarch, regno)[0] != '\0')
|
|
fprintf_unfiltered (gdb_stdlog, "(%s)",
|
|
gdbarch_register_name (gdbarch, regno));
|
|
else
|
|
fprintf_unfiltered (gdb_stdlog, "(%d)", regno);
|
|
if (regno >= 0 && regno < gdbarch_num_regs (gdbarch))
|
|
{
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
|
int size = register_size (gdbarch, regno);
|
|
gdb_byte *buf = register_buffer (regno);
|
|
|
|
fprintf_unfiltered (gdb_stdlog, " = ");
|
|
for (int i = 0; i < size; i++)
|
|
{
|
|
fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]);
|
|
}
|
|
if (size <= sizeof (LONGEST))
|
|
{
|
|
ULONGEST val = extract_unsigned_integer (buf, size, byte_order);
|
|
|
|
fprintf_unfiltered (gdb_stdlog, " %s %s",
|
|
core_addr_to_string_nz (val), plongest (val));
|
|
}
|
|
}
|
|
fprintf_unfiltered (gdb_stdlog, "\n");
|
|
}
|
|
|
|
static void
|
|
reg_flush_command (const char *command, int from_tty)
|
|
{
|
|
/* Force-flush the register cache. */
|
|
registers_changed ();
|
|
if (from_tty)
|
|
printf_filtered (_("Register cache flushed.\n"));
|
|
}
|
|
|
|
void
|
|
register_dump::dump (ui_file *file)
|
|
{
|
|
auto descr = regcache_descr (m_gdbarch);
|
|
int regnum;
|
|
int footnote_nr = 0;
|
|
int footnote_register_offset = 0;
|
|
int footnote_register_type_name_null = 0;
|
|
long register_offset = 0;
|
|
|
|
gdb_assert (descr->nr_cooked_registers
|
|
== (gdbarch_num_regs (m_gdbarch)
|
|
+ gdbarch_num_pseudo_regs (m_gdbarch)));
|
|
|
|
for (regnum = -1; regnum < descr->nr_cooked_registers; regnum++)
|
|
{
|
|
/* Name. */
|
|
if (regnum < 0)
|
|
fprintf_unfiltered (file, " %-10s", "Name");
|
|
else
|
|
{
|
|
const char *p = gdbarch_register_name (m_gdbarch, regnum);
|
|
|
|
if (p == NULL)
|
|
p = "";
|
|
else if (p[0] == '\0')
|
|
p = "''";
|
|
fprintf_unfiltered (file, " %-10s", p);
|
|
}
|
|
|
|
/* Number. */
|
|
if (regnum < 0)
|
|
fprintf_unfiltered (file, " %4s", "Nr");
|
|
else
|
|
fprintf_unfiltered (file, " %4d", regnum);
|
|
|
|
/* Relative number. */
|
|
if (regnum < 0)
|
|
fprintf_unfiltered (file, " %4s", "Rel");
|
|
else if (regnum < gdbarch_num_regs (m_gdbarch))
|
|
fprintf_unfiltered (file, " %4d", regnum);
|
|
else
|
|
fprintf_unfiltered (file, " %4d",
|
|
(regnum - gdbarch_num_regs (m_gdbarch)));
|
|
|
|
/* Offset. */
|
|
if (regnum < 0)
|
|
fprintf_unfiltered (file, " %6s ", "Offset");
|
|
else
|
|
{
|
|
fprintf_unfiltered (file, " %6ld",
|
|
descr->register_offset[regnum]);
|
|
if (register_offset != descr->register_offset[regnum]
|
|
|| (regnum > 0
|
|
&& (descr->register_offset[regnum]
|
|
!= (descr->register_offset[regnum - 1]
|
|
+ descr->sizeof_register[regnum - 1])))
|
|
)
|
|
{
|
|
if (!footnote_register_offset)
|
|
footnote_register_offset = ++footnote_nr;
|
|
fprintf_unfiltered (file, "*%d", footnote_register_offset);
|
|
}
|
|
else
|
|
fprintf_unfiltered (file, " ");
|
|
register_offset = (descr->register_offset[regnum]
|
|
+ descr->sizeof_register[regnum]);
|
|
}
|
|
|
|
/* Size. */
|
|
if (regnum < 0)
|
|
fprintf_unfiltered (file, " %5s ", "Size");
|
|
else
|
|
fprintf_unfiltered (file, " %5ld", descr->sizeof_register[regnum]);
|
|
|
|
/* Type. */
|
|
{
|
|
const char *t;
|
|
std::string name_holder;
|
|
|
|
if (regnum < 0)
|
|
t = "Type";
|
|
else
|
|
{
|
|
static const char blt[] = "builtin_type";
|
|
|
|
t = TYPE_NAME (register_type (m_gdbarch, regnum));
|
|
if (t == NULL)
|
|
{
|
|
if (!footnote_register_type_name_null)
|
|
footnote_register_type_name_null = ++footnote_nr;
|
|
name_holder = string_printf ("*%d",
|
|
footnote_register_type_name_null);
|
|
t = name_holder.c_str ();
|
|
}
|
|
/* Chop a leading builtin_type. */
|
|
if (startswith (t, blt))
|
|
t += strlen (blt);
|
|
}
|
|
fprintf_unfiltered (file, " %-15s", t);
|
|
}
|
|
|
|
/* Leading space always present. */
|
|
fprintf_unfiltered (file, " ");
|
|
|
|
dump_reg (file, regnum);
|
|
|
|
fprintf_unfiltered (file, "\n");
|
|
}
|
|
|
|
if (footnote_register_offset)
|
|
fprintf_unfiltered (file, "*%d: Inconsistent register offsets.\n",
|
|
footnote_register_offset);
|
|
if (footnote_register_type_name_null)
|
|
fprintf_unfiltered (file,
|
|
"*%d: Register type's name NULL.\n",
|
|
footnote_register_type_name_null);
|
|
}
|
|
|
|
#if GDB_SELF_TEST
|
|
#include "selftest.h"
|
|
#include "selftest-arch.h"
|
|
#include "gdbthread.h"
|
|
#include "target-float.h"
|
|
|
|
namespace selftests {
|
|
|
|
class regcache_access : public regcache
|
|
{
|
|
public:
|
|
|
|
/* Return the number of elements in current_regcache. */
|
|
|
|
static size_t
|
|
current_regcache_size ()
|
|
{
|
|
return std::distance (regcache::current_regcache.begin (),
|
|
regcache::current_regcache.end ());
|
|
}
|
|
};
|
|
|
|
static void
|
|
current_regcache_test (void)
|
|
{
|
|
/* It is empty at the start. */
|
|
SELF_CHECK (regcache_access::current_regcache_size () == 0);
|
|
|
|
ptid_t ptid1 (1), ptid2 (2), ptid3 (3);
|
|
|
|
/* Get regcache from ptid1, a new regcache is added to
|
|
current_regcache. */
|
|
regcache *regcache = get_thread_arch_aspace_regcache (ptid1,
|
|
target_gdbarch (),
|
|
NULL);
|
|
|
|
SELF_CHECK (regcache != NULL);
|
|
SELF_CHECK (regcache->ptid () == ptid1);
|
|
SELF_CHECK (regcache_access::current_regcache_size () == 1);
|
|
|
|
/* Get regcache from ptid2, a new regcache is added to
|
|
current_regcache. */
|
|
regcache = get_thread_arch_aspace_regcache (ptid2,
|
|
target_gdbarch (),
|
|
NULL);
|
|
SELF_CHECK (regcache != NULL);
|
|
SELF_CHECK (regcache->ptid () == ptid2);
|
|
SELF_CHECK (regcache_access::current_regcache_size () == 2);
|
|
|
|
/* Get regcache from ptid3, a new regcache is added to
|
|
current_regcache. */
|
|
regcache = get_thread_arch_aspace_regcache (ptid3,
|
|
target_gdbarch (),
|
|
NULL);
|
|
SELF_CHECK (regcache != NULL);
|
|
SELF_CHECK (regcache->ptid () == ptid3);
|
|
SELF_CHECK (regcache_access::current_regcache_size () == 3);
|
|
|
|
/* Get regcache from ptid2 again, nothing is added to
|
|
current_regcache. */
|
|
regcache = get_thread_arch_aspace_regcache (ptid2,
|
|
target_gdbarch (),
|
|
NULL);
|
|
SELF_CHECK (regcache != NULL);
|
|
SELF_CHECK (regcache->ptid () == ptid2);
|
|
SELF_CHECK (regcache_access::current_regcache_size () == 3);
|
|
|
|
/* Mark ptid2 is changed, so regcache of ptid2 should be removed from
|
|
current_regcache. */
|
|
registers_changed_ptid (ptid2);
|
|
SELF_CHECK (regcache_access::current_regcache_size () == 2);
|
|
}
|
|
|
|
class target_ops_no_register : public test_target_ops
|
|
{
|
|
public:
|
|
target_ops_no_register ()
|
|
: test_target_ops {}
|
|
{}
|
|
|
|
void reset ()
|
|
{
|
|
fetch_registers_called = 0;
|
|
store_registers_called = 0;
|
|
xfer_partial_called = 0;
|
|
}
|
|
|
|
void fetch_registers (regcache *regs, int regno) override;
|
|
void store_registers (regcache *regs, int regno) override;
|
|
|
|
enum target_xfer_status xfer_partial (enum target_object object,
|
|
const char *annex, gdb_byte *readbuf,
|
|
const gdb_byte *writebuf,
|
|
ULONGEST offset, ULONGEST len,
|
|
ULONGEST *xfered_len) override;
|
|
|
|
unsigned int fetch_registers_called = 0;
|
|
unsigned int store_registers_called = 0;
|
|
unsigned int xfer_partial_called = 0;
|
|
};
|
|
|
|
void
|
|
target_ops_no_register::fetch_registers (regcache *regs, int regno)
|
|
{
|
|
/* Mark register available. */
|
|
regs->raw_supply_zeroed (regno);
|
|
this->fetch_registers_called++;
|
|
}
|
|
|
|
void
|
|
target_ops_no_register::store_registers (regcache *regs, int regno)
|
|
{
|
|
this->store_registers_called++;
|
|
}
|
|
|
|
enum target_xfer_status
|
|
target_ops_no_register::xfer_partial (enum target_object object,
|
|
const char *annex, gdb_byte *readbuf,
|
|
const gdb_byte *writebuf,
|
|
ULONGEST offset, ULONGEST len,
|
|
ULONGEST *xfered_len)
|
|
{
|
|
this->xfer_partial_called++;
|
|
|
|
*xfered_len = len;
|
|
return TARGET_XFER_OK;
|
|
}
|
|
|
|
class readwrite_regcache : public regcache
|
|
{
|
|
public:
|
|
readwrite_regcache (struct gdbarch *gdbarch)
|
|
: regcache (gdbarch, nullptr)
|
|
{}
|
|
};
|
|
|
|
/* Test regcache::cooked_read gets registers from raw registers and
|
|
memory instead of target to_{fetch,store}_registers. */
|
|
|
|
static void
|
|
cooked_read_test (struct gdbarch *gdbarch)
|
|
{
|
|
/* Error out if debugging something, because we're going to push the
|
|
test target, which would pop any existing target. */
|
|
if (target_stack->to_stratum >= process_stratum)
|
|
error (_("target already pushed"));
|
|
|
|
/* Create a mock environment. An inferior with a thread, with a
|
|
process_stratum target pushed. */
|
|
|
|
target_ops_no_register mock_target;
|
|
ptid_t mock_ptid (1, 1);
|
|
inferior mock_inferior (mock_ptid.pid ());
|
|
address_space mock_aspace {};
|
|
mock_inferior.gdbarch = gdbarch;
|
|
mock_inferior.aspace = &mock_aspace;
|
|
thread_info mock_thread (&mock_inferior, mock_ptid);
|
|
|
|
scoped_restore restore_thread_list
|
|
= make_scoped_restore (&thread_list, &mock_thread);
|
|
|
|
/* Add the mock inferior to the inferior list so that look ups by
|
|
target+ptid can find it. */
|
|
scoped_restore restore_inferior_list
|
|
= make_scoped_restore (&inferior_list);
|
|
inferior_list = &mock_inferior;
|
|
|
|
/* Switch to the mock inferior. */
|
|
scoped_restore_current_inferior restore_current_inferior;
|
|
set_current_inferior (&mock_inferior);
|
|
|
|
/* Push the process_stratum target so we can mock accessing
|
|
registers. */
|
|
push_target (&mock_target);
|
|
|
|
/* Pop it again on exit (return/exception). */
|
|
struct on_exit
|
|
{
|
|
~on_exit ()
|
|
{
|
|
pop_all_targets_at_and_above (process_stratum);
|
|
}
|
|
} pop_targets;
|
|
|
|
/* Switch to the mock thread. */
|
|
scoped_restore restore_inferior_ptid
|
|
= make_scoped_restore (&inferior_ptid, mock_ptid);
|
|
|
|
/* Test that read one raw register from regcache_no_target will go
|
|
to the target layer. */
|
|
int regnum;
|
|
|
|
/* Find a raw register which size isn't zero. */
|
|
for (regnum = 0; regnum < gdbarch_num_regs (gdbarch); regnum++)
|
|
{
|
|
if (register_size (gdbarch, regnum) != 0)
|
|
break;
|
|
}
|
|
|
|
readwrite_regcache readwrite (gdbarch);
|
|
gdb::def_vector<gdb_byte> buf (register_size (gdbarch, regnum));
|
|
|
|
readwrite.raw_read (regnum, buf.data ());
|
|
|
|
/* raw_read calls target_fetch_registers. */
|
|
SELF_CHECK (mock_target.fetch_registers_called > 0);
|
|
mock_target.reset ();
|
|
|
|
/* Mark all raw registers valid, so the following raw registers
|
|
accesses won't go to target. */
|
|
for (auto i = 0; i < gdbarch_num_regs (gdbarch); i++)
|
|
readwrite.raw_update (i);
|
|
|
|
mock_target.reset ();
|
|
/* Then, read all raw and pseudo registers, and don't expect calling
|
|
to_{fetch,store}_registers. */
|
|
for (int regnum = 0;
|
|
regnum < gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch);
|
|
regnum++)
|
|
{
|
|
if (register_size (gdbarch, regnum) == 0)
|
|
continue;
|
|
|
|
gdb::def_vector<gdb_byte> buf (register_size (gdbarch, regnum));
|
|
|
|
SELF_CHECK (REG_VALID == readwrite.cooked_read (regnum, buf.data ()));
|
|
|
|
SELF_CHECK (mock_target.fetch_registers_called == 0);
|
|
SELF_CHECK (mock_target.store_registers_called == 0);
|
|
|
|
/* Some SPU pseudo registers are got via TARGET_OBJECT_SPU. */
|
|
if (gdbarch_bfd_arch_info (gdbarch)->arch != bfd_arch_spu)
|
|
SELF_CHECK (mock_target.xfer_partial_called == 0);
|
|
|
|
mock_target.reset ();
|
|
}
|
|
|
|
readonly_detached_regcache readonly (readwrite);
|
|
|
|
/* GDB may go to target layer to fetch all registers and memory for
|
|
readonly regcache. */
|
|
mock_target.reset ();
|
|
|
|
for (int regnum = 0;
|
|
regnum < gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch);
|
|
regnum++)
|
|
{
|
|
if (register_size (gdbarch, regnum) == 0)
|
|
continue;
|
|
|
|
gdb::def_vector<gdb_byte> buf (register_size (gdbarch, regnum));
|
|
enum register_status status = readonly.cooked_read (regnum,
|
|
buf.data ());
|
|
|
|
if (regnum < gdbarch_num_regs (gdbarch))
|
|
{
|
|
auto bfd_arch = gdbarch_bfd_arch_info (gdbarch)->arch;
|
|
|
|
if (bfd_arch == bfd_arch_frv || bfd_arch == bfd_arch_h8300
|
|
|| bfd_arch == bfd_arch_m32c || bfd_arch == bfd_arch_sh
|
|
|| bfd_arch == bfd_arch_alpha || bfd_arch == bfd_arch_v850
|
|
|| bfd_arch == bfd_arch_msp430 || bfd_arch == bfd_arch_mep
|
|
|| bfd_arch == bfd_arch_mips || bfd_arch == bfd_arch_v850_rh850
|
|
|| bfd_arch == bfd_arch_tic6x || bfd_arch == bfd_arch_mn10300
|
|
|| bfd_arch == bfd_arch_rl78 || bfd_arch == bfd_arch_score
|
|
|| bfd_arch == bfd_arch_riscv)
|
|
{
|
|
/* Raw registers. If raw registers are not in save_reggroup,
|
|
their status are unknown. */
|
|
if (gdbarch_register_reggroup_p (gdbarch, regnum, save_reggroup))
|
|
SELF_CHECK (status == REG_VALID);
|
|
else
|
|
SELF_CHECK (status == REG_UNKNOWN);
|
|
}
|
|
else
|
|
SELF_CHECK (status == REG_VALID);
|
|
}
|
|
else
|
|
{
|
|
if (gdbarch_register_reggroup_p (gdbarch, regnum, save_reggroup))
|
|
SELF_CHECK (status == REG_VALID);
|
|
else
|
|
{
|
|
/* If pseudo registers are not in save_reggroup, some of
|
|
them can be computed from saved raw registers, but some
|
|
of them are unknown. */
|
|
auto bfd_arch = gdbarch_bfd_arch_info (gdbarch)->arch;
|
|
|
|
if (bfd_arch == bfd_arch_frv
|
|
|| bfd_arch == bfd_arch_m32c
|
|
|| bfd_arch == bfd_arch_mep
|
|
|| bfd_arch == bfd_arch_sh)
|
|
SELF_CHECK (status == REG_VALID || status == REG_UNKNOWN);
|
|
else if (bfd_arch == bfd_arch_mips
|
|
|| bfd_arch == bfd_arch_h8300)
|
|
SELF_CHECK (status == REG_UNKNOWN);
|
|
else
|
|
SELF_CHECK (status == REG_VALID);
|
|
}
|
|
}
|
|
|
|
SELF_CHECK (mock_target.fetch_registers_called == 0);
|
|
SELF_CHECK (mock_target.store_registers_called == 0);
|
|
SELF_CHECK (mock_target.xfer_partial_called == 0);
|
|
|
|
mock_target.reset ();
|
|
}
|
|
}
|
|
|
|
/* Test regcache::cooked_write by writing some expected contents to
|
|
registers, and checking that contents read from registers and the
|
|
expected contents are the same. */
|
|
|
|
static void
|
|
cooked_write_test (struct gdbarch *gdbarch)
|
|
{
|
|
/* Error out if debugging something, because we're going to push the
|
|
test target, which would pop any existing target. */
|
|
if (target_stack->to_stratum >= process_stratum)
|
|
error (_("target already pushed"));
|
|
|
|
/* Create a mock environment. A process_stratum target pushed. */
|
|
|
|
target_ops_no_register mock_target;
|
|
|
|
/* Push the process_stratum target so we can mock accessing
|
|
registers. */
|
|
push_target (&mock_target);
|
|
|
|
/* Pop it again on exit (return/exception). */
|
|
struct on_exit
|
|
{
|
|
~on_exit ()
|
|
{
|
|
pop_all_targets_at_and_above (process_stratum);
|
|
}
|
|
} pop_targets;
|
|
|
|
readwrite_regcache readwrite (gdbarch);
|
|
|
|
const int num_regs = (gdbarch_num_regs (gdbarch)
|
|
+ gdbarch_num_pseudo_regs (gdbarch));
|
|
|
|
for (auto regnum = 0; regnum < num_regs; regnum++)
|
|
{
|
|
if (register_size (gdbarch, regnum) == 0
|
|
|| gdbarch_cannot_store_register (gdbarch, regnum))
|
|
continue;
|
|
|
|
auto bfd_arch = gdbarch_bfd_arch_info (gdbarch)->arch;
|
|
|
|
if ((bfd_arch == bfd_arch_sparc
|
|
/* SPARC64_CWP_REGNUM, SPARC64_PSTATE_REGNUM,
|
|
SPARC64_ASI_REGNUM and SPARC64_CCR_REGNUM are hard to test. */
|
|
&& gdbarch_ptr_bit (gdbarch) == 64
|
|
&& (regnum >= gdbarch_num_regs (gdbarch)
|
|
&& regnum <= gdbarch_num_regs (gdbarch) + 4))
|
|
|| (bfd_arch == bfd_arch_spu
|
|
/* SPU pseudo registers except SPU_SP_REGNUM are got by
|
|
TARGET_OBJECT_SPU. */
|
|
&& regnum >= gdbarch_num_regs (gdbarch) && regnum != 130))
|
|
continue;
|
|
|
|
std::vector<gdb_byte> expected (register_size (gdbarch, regnum), 0);
|
|
std::vector<gdb_byte> buf (register_size (gdbarch, regnum), 0);
|
|
const auto type = register_type (gdbarch, regnum);
|
|
|
|
if (TYPE_CODE (type) == TYPE_CODE_FLT
|
|
|| TYPE_CODE (type) == TYPE_CODE_DECFLOAT)
|
|
{
|
|
/* Generate valid float format. */
|
|
target_float_from_string (expected.data (), type, "1.25");
|
|
}
|
|
else if (TYPE_CODE (type) == TYPE_CODE_INT
|
|
|| TYPE_CODE (type) == TYPE_CODE_ARRAY
|
|
|| TYPE_CODE (type) == TYPE_CODE_PTR
|
|
|| TYPE_CODE (type) == TYPE_CODE_UNION
|
|
|| TYPE_CODE (type) == TYPE_CODE_STRUCT)
|
|
{
|
|
if (bfd_arch == bfd_arch_ia64
|
|
|| (regnum >= gdbarch_num_regs (gdbarch)
|
|
&& (bfd_arch == bfd_arch_xtensa
|
|
|| bfd_arch == bfd_arch_bfin
|
|
|| bfd_arch == bfd_arch_m32c
|
|
/* m68hc11 pseudo registers are in memory. */
|
|
|| bfd_arch == bfd_arch_m68hc11
|
|
|| bfd_arch == bfd_arch_m68hc12
|
|
|| bfd_arch == bfd_arch_s390))
|
|
|| (bfd_arch == bfd_arch_frv
|
|
/* FRV pseudo registers except iacc0. */
|
|
&& regnum > gdbarch_num_regs (gdbarch)))
|
|
{
|
|
/* Skip setting the expected values for some architecture
|
|
registers. */
|
|
}
|
|
else if (bfd_arch == bfd_arch_rl78 && regnum == 40)
|
|
{
|
|
/* RL78_PC_REGNUM */
|
|
for (auto j = 0; j < register_size (gdbarch, regnum) - 1; j++)
|
|
expected[j] = j;
|
|
}
|
|
else
|
|
{
|
|
for (auto j = 0; j < register_size (gdbarch, regnum); j++)
|
|
expected[j] = j;
|
|
}
|
|
}
|
|
else if (TYPE_CODE (type) == TYPE_CODE_FLAGS)
|
|
{
|
|
/* No idea how to test flags. */
|
|
continue;
|
|
}
|
|
else
|
|
{
|
|
/* If we don't know how to create the expected value for the
|
|
this type, make it fail. */
|
|
SELF_CHECK (0);
|
|
}
|
|
|
|
readwrite.cooked_write (regnum, expected.data ());
|
|
|
|
SELF_CHECK (readwrite.cooked_read (regnum, buf.data ()) == REG_VALID);
|
|
SELF_CHECK (expected == buf);
|
|
}
|
|
}
|
|
|
|
} // namespace selftests
|
|
#endif /* GDB_SELF_TEST */
|
|
|
|
void
|
|
_initialize_regcache (void)
|
|
{
|
|
regcache_descr_handle
|
|
= gdbarch_data_register_post_init (init_regcache_descr);
|
|
|
|
gdb::observers::target_changed.attach (regcache_observer_target_changed);
|
|
gdb::observers::thread_ptid_changed.attach
|
|
(regcache::regcache_thread_ptid_changed);
|
|
|
|
add_com ("flushregs", class_maintenance, reg_flush_command,
|
|
_("Force gdb to flush its register cache (maintainer command)"));
|
|
|
|
#if GDB_SELF_TEST
|
|
selftests::register_test ("current_regcache", selftests::current_regcache_test);
|
|
|
|
selftests::register_test_foreach_arch ("regcache::cooked_read_test",
|
|
selftests::cooked_read_test);
|
|
selftests::register_test_foreach_arch ("regcache::cooked_write_test",
|
|
selftests::cooked_write_test);
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#endif
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}
|