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98 Commits

Author SHA1 Message Date
John Baldwin 6f3b1098e8 Share the code to format "info proc mappings" entries for FreeBSD. 
gdb/ChangeLog:

	* fbsd-nat.c (fbsd_nat_target::info_proc) Use
	fbsd_info_proc_mappings_header and fbsd_info_proc_mappings_entry.
	* fbsd-tdep.c (fbsd_vm_map_entry_flags): Mark static.
	(fbsd_info_proc_mappings_header, fbsd_info_proc_mappings_entry):
	New functions.
	(fbsd_core_info_proc_mappings): Use fbsd_info_proc_mappings_header
	and fbsd_info_proc_mappings_header.
	* fbsd-tdep.h (fbsd_vm_map_entry_flags): Remove.
	(fbsd_info_proc_mappings_header, fbsd_info_proc_mappings_entry):
	New.
 2018-10-17 11:42:00 -07:00
John Baldwin 7e69672e4d Support 'info proc files' on live FreeBSD processes. 
This walks the list of struct kinfo_file objects returned by a call to
kinfo_getfile outputting a description of each open file descriptor.

gdb/ChangeLog:

	* fbsd-nat.c (fbsd_nat_target::info_proc): List open file
	descriptors for IP_FILES and IP_ALL.
 2018-09-18 14:05:47 -07:00
John Baldwin f117a62c5d Remove unused "tmp" variable. 
gdb/ChangeLog:

	* fbsd-nat.c (fbsd_nat_target::info_proc): Remove unused variable.
 2018-09-12 16:11:07 -07:00
Simon Ser 739ab2e92e Generate NT_PROCSTAT_{AUXV,VMMAP,PS_STRINGS} in FreeBSD coredumps 
gcore generates NT_AUXV and NT_FILE notes for Linux targets.  On
FreeBSD auxv is stored in a NT_PROCSTAT_AUXV section, virtual memory
mappings are stored in a NT_PROCSTAT_VMMAP, and both are prefixed with
the struct size.  In addition, store a NT_PROCSTAT_PS_STRINGS note
saving the initial location of the argv[] and environment[] arrays.

gdb/ChangeLog:

	PR gdb/23105
	* fbsd-nat.c (fbsd_nat_target::xfer_partial): Add support for
	TARGET_OBJECT_FREEBSD_VMMAP and TARGET_OBJECT_FREEBSD_PS_STRINGS.
	* fbsd-tdep.c (fbsd_make_note_desc): New.
	(fbsd_make_corefile_notes): Write NT_PROCSTAT_AUXV,
	NT_PROCSTAT_VMMAP and NT_PROCSTAT_PS_STRINGS notes.
	* target.h (enum target_object) Add FreeBSD-specific
	TARGET_OBJECT_FREEBSD_VMMAP and TARGET_OBJECT_FREEBSD_PS_STRINGS.
 2018-09-06 15:07:59 -07:00
Tom Tromey d7e15655a4 Remove ptid_equal 
Remove ptid_equal in favor of using "==".

gdb/ChangeLog
2018-07-03  Tom Tromey  <tom@tromey.com>

	* common/ptid.c (ptid_equal): Remove.
	* common/ptid.h (ptid_equal): Don't declare.
	* ada-tasks.c: Update.
	* breakpoint.c: Update.
	* common/agent.c: Update.
	* corelow.c: Update.
	* darwin-nat-info.c: Update.
	* darwin-nat.c: Update.
	* dcache.c: Update.
	* dtrace-probe.c: Update.
	* dummy-frame.c: Update.
	* fbsd-nat.c: Update.
	* frame.c: Update.
	* gdbthread.h: Update.
	* gnu-nat.c: Update.
	* go32-nat.c: Update.
	* inf-loop.c: Update.
	* inf-ptrace.c: Update.
	* infcall.c: Update.
	* infcmd.c: Update.
	* inflow.c: Update.
	* infrun.c: Update.
	* linux-fork.c: Update.
	* linux-nat.c: Update.
	* linux-thread-db.c: Update.
	* mi/mi-cmd-var.c: Update.
	* mi/mi-interp.c: Update.
	* mi/mi-main.c: Update.
	* nto-procfs.c: Update.
	* ppc-linux-tdep.c: Update.
	* procfs.c: Update.
	* python/py-inferior.c: Update.
	* python/py-record-btrace.c: Update.
	* python/py-record.c: Update.
	* ravenscar-thread.c: Update.
	* regcache.c: Update.
	* remote-sim.c: Update.
	* remote.c: Update.
	* sol-thread.c: Update.
	* solib.c: Update.
	* target.c: Update.
	* tui/tui-stack.c: Update.
	* varobj.c: Update.
	* windows-nat.c: Update.
	* windows-tdep.c: Update.

gdb/gdbserver/ChangeLog
2018-07-03  Tom Tromey  <tom@tromey.com>

	* linux-low.c: Update.
	* lynx-low.c: Update.
	* mem-break.c: Update.
	* nto-low.c: Update.
	* remote-utils.c: Update.
	* server.c: Update.
	* spu-low.c: Update.
	* target.c: Update.
	* win32-low.c: Update.
 2018-07-03 11:36:46 -06:00
Tom Tromey 26a57c9256 Remove ptid_match 
This removes ptid_match in favor of the ptid_t::matches method.

gdb/ChangeLog
2018-07-03  Tom Tromey  <tom@tromey.com>

	* common/ptid.c (ptid_match): Remove.
	* common/ptid.h (ptid_match): Don't declare.
	* fbsd-nat.c: Update.
	* infcmd.c: Update.
	* infrun.c: Update.
	* linux-nat.c: Update.
	* record-btrace.c: Update.
	* regcache.c: Update.
	* remote.c: Update.

gdb/gdbserver/ChangeLog
2018-07-03  Tom Tromey  <tom@tromey.com>

	* server.c: Update.
 2018-07-03 11:36:45 -06:00
Tom Tromey 15a9e13e52 Remove ptid_lwp_p 
This removes ptid_lwp_p in favor of the ptid_t::lwp_p method.

gdb/ChangeLog
2018-07-03  Tom Tromey  <tom@tromey.com>

	* common/ptid.c (ptid_lwp_p): Remove.
	* common/ptid.h (ptid_lwp_p): Don't declare.
	* fbsd-nat.c: Update.
	* linux-nat.c: Update.
	* nat/linux-procfs.c: Update.
	* nat/x86-linux-dregs.c: Update.
	* sol-thread.c: Update.
 2018-07-03 11:36:45 -06:00
Tom Tromey cc6bcb548d Remove ptid_get_tid 
This removes ptid_get_tid in favor of calling the ptid_t::tid method.

gdb/ChangeLog
2018-07-03  Tom Tromey  <tom@tromey.com>

	* common/ptid.c (ptid_get_tid): Remove.
	* common/ptid.h (ptid_get_tid): Don't declare.
	* ada-tasks.c: Update.
	* aix-thread.c: Update.
	* bsd-uthread.c: Update.
	* darwin-nat.c: Update.
	* fbsd-nat.c: Update.
	* i386-darwin-nat.c: Update.
	* infrun.c: Update.
	* linux-tdep.c: Update.
	* nto-procfs.c: Update.
	* ppc-ravenscar-thread.c: Update.
	* python/py-infthread.c: Update.
	* ravenscar-thread.c: Update.
	* sol-thread.c: Update.
	* sparc-ravenscar-thread.c: Update.
	* windows-nat.c: Update.

gdb/gdbserver/ChangeLog
2018-07-03  Tom Tromey  <tom@tromey.com>

	* target.c: Update.
 2018-07-03 11:36:44 -06:00
Tom Tromey e38504b392 Remove ptid_get_lwp 
This removes ptid_get_lwp in favor of calling the ptid_t::lwp method.

gdb/ChangeLog
2018-07-03  Tom Tromey  <tom@tromey.com>

	* common/ptid.c (ptid_get_lwp): Remove.
	* common/ptid.h (ptid_get_lwp): Don't declare.
	* aarch64-linux-nat.c: Update.
	* ada-tasks.c: Update.
	* aix-thread.c: Update.
	* amd64-linux-nat.c: Update.
	* arm-linux-nat.c: Update.
	* corelow.c: Update.
	* fbsd-nat.c: Update.
	* fbsd-tdep.c: Update.
	* gnu-nat.c: Update.
	* i386-cygwin-tdep.c: Update.
	* i386-gnu-nat.c: Update.
	* i386-linux-nat.c: Update.
	* ia64-linux-nat.c: Update.
	* inf-ptrace.c: Update.
	* infrun.c: Update.
	* linux-fork.c: Update.
	* linux-nat.c: Update.
	* linux-tdep.c: Update.
	* linux-thread-db.c: Update.
	* mips-linux-nat.c: Update.
	* nat/aarch64-linux-hw-point.c: Update.
	* nat/aarch64-linux.c: Update.
	* nat/linux-btrace.c: Update.
	* nat/linux-osdata.c: Update.
	* nat/linux-procfs.c: Update.
	* nat/x86-linux-dregs.c: Update.
	* obsd-nat.c: Update.
	* ppc-fbsd-nat.c: Update.
	* ppc-linux-nat.c: Update.
	* procfs.c: Update.
	* python/py-infthread.c: Update.
	* ravenscar-thread.c: Update.
	* remote.c: Update.
	* s390-linux-nat.c: Update.
	* sol-thread.c: Update.
	* sol2-tdep.c: Update.
	* spu-linux-nat.c: Update.
	* x86-linux-nat.c: Update.
	* xtensa-linux-nat.c: Update.

gdb/gdbserver/ChangeLog
2018-07-03  Tom Tromey  <tom@tromey.com>

	* linux-low.c: Update.
	* linux-mips-low.c: Update.
	* lynx-low.c: Update.
	* nto-low.c: Update.
	* remote-utils.c: Update.
	* server.c: Update.
	* spu-low.c: Update.
	* target.c: Update.
	* thread-db.c: Update.
 2018-07-03 11:36:43 -06:00
Tom Tromey e99b03dcf4 Remove ptid_get_pid 
This removes ptid_get_pid in favor of calling the ptid_t::pid method.

gdb/ChangeLog
2018-07-03  Tom Tromey  <tom@tromey.com>

	* common/ptid.c (ptid_get_pid): Remove.
	* common/ptid.h (ptid_get_pid): Don't declare.
	* aarch64-linux-nat.c: Update.
	* ada-lang.c: Update.
	* aix-thread.c: Update.
	* alpha-bsd-nat.c: Update.
	* amd64-fbsd-nat.c: Update.
	* amd64-linux-nat.c: Update.
	* arm-linux-nat.c: Update.
	* arm-nbsd-nat.c: Update.
	* auxv.c: Update.
	* break-catch-syscall.c: Update.
	* breakpoint.c: Update.
	* bsd-uthread.c: Update.
	* corelow.c: Update.
	* ctf.c: Update.
	* darwin-nat.c: Update.
	* fbsd-nat.c: Update.
	* fbsd-tdep.c: Update.
	* gcore.c: Update.
	* gnu-nat.c: Update.
	* hppa-nbsd-nat.c: Update.
	* hppa-obsd-nat.c: Update.
	* i386-fbsd-nat.c: Update.
	* ia64-linux-nat.c: Update.
	* inf-ptrace.c: Update.
	* infcmd.c: Update.
	* inferior.c: Update.
	* inferior.h: Update.
	* inflow.c: Update.
	* infrun.c: Update.
	* linux-fork.c: Update.
	* linux-nat.c: Update.
	* linux-tdep.c: Update.
	* linux-thread-db.c: Update.
	* m68k-bsd-nat.c: Update.
	* mi/mi-interp.c: Update.
	* mi/mi-main.c: Update.
	* mips-linux-nat.c: Update.
	* mips-nbsd-nat.c: Update.
	* mips64-obsd-nat.c: Update.
	* nat/aarch64-linux-hw-point.c: Update.
	* nat/aarch64-linux.c: Update.
	* nat/linux-btrace.c: Update.
	* nat/linux-osdata.c: Update.
	* nat/linux-procfs.c: Update.
	* nat/x86-linux-dregs.c: Update.
	* nto-procfs.c: Update.
	* obsd-nat.c: Update.
	* ppc-linux-nat.c: Update.
	* ppc-nbsd-nat.c: Update.
	* ppc-obsd-nat.c: Update.
	* proc-service.c: Update.
	* procfs.c: Update.
	* python/py-inferior.c: Update.
	* python/py-infthread.c: Update.
	* ravenscar-thread.c: Update.
	* record.c: Update.
	* remote-sim.c: Update.
	* remote.c: Update.
	* rs6000-nat.c: Update.
	* s390-linux-nat.c: Update.
	* sh-nbsd-nat.c: Update.
	* sol-thread.c: Update.
	* sparc-nat.c: Update.
	* sparc64-tdep.c: Update.
	* spu-linux-nat.c: Update.
	* spu-tdep.c: Update.
	* target-debug.h: Update.
	* target.c: Update.
	* thread.c: Update.
	* tid-parse.c: Update.
	* tracefile-tfile.c: Update.
	* vax-bsd-nat.c: Update.
	* windows-nat.c: Update.
	* x86-linux-nat.c: Update.
	* x86-nat.c: Update.

gdb/gdbserver/ChangeLog
2018-07-03  Tom Tromey  <tom@tromey.com>

	* linux-low.c: Update.
	* linux-mips-low.c: Update.
	* lynx-low.c: Update.
	* mem-break.c: Update.
	* nto-low.c: Update.
	* remote-utils.c: Update.
	* server.c: Update.
	* spu-low.c: Update.
	* target.c: Update.
	* tracepoint.c: Update.
 2018-07-03 11:36:42 -06:00
Tom Tromey f2907e4991 Remove pid_to_ptid 
This removes pid_to_ptid in favor of calling the ptid_t constructor
directly.

gdb/ChangeLog
2018-07-03  Tom Tromey  <tom@tromey.com>

	* common/ptid.c (pid_to_ptid): Remove.
	* common/ptid.h (pid_to_ptid): Don't declare.
	* aix-thread.c: Update.
	* arm-linux-nat.c: Update.
	* common/ptid.c: Update.
	* common/ptid.h: Update.
	* corelow.c: Update.
	* ctf.c: Update.
	* darwin-nat.c: Update.
	* fbsd-nat.c: Update.
	* fork-child.c: Update.
	* gnu-nat.c: Update.
	* go32-nat.c: Update.
	* inf-ptrace.c: Update.
	* infcmd.c: Update.
	* inferior.c: Update.
	* infrun.c: Update.
	* linux-fork.c: Update.
	* linux-nat.c: Update.
	* nat/aarch64-linux-hw-point.c: Update.
	* nat/fork-inferior.c: Update.
	* nat/x86-linux-dregs.c: Update.
	* nto-procfs.c: Update.
	* obsd-nat.c: Update.
	* procfs.c: Update.
	* progspace.c: Update.
	* remote.c: Update.
	* rs6000-nat.c: Update.
	* s390-linux-nat.c: Update.
	* sol-thread.c: Update.
	* spu-linux-nat.c: Update.
	* target.c: Update.
	* top.c: Update.
	* tracefile-tfile.c: Update.
	* windows-nat.c: Update.

gdb/gdbserver/ChangeLog
2018-07-03  Tom Tromey  <tom@tromey.com>

	* linux-low.c: Update.
	* linux-ppc-low.c: Update.
	* linux-x86-low.c: Update.
	* proc-service.c: Update.
	* server.c: Update.
	* spu-low.c: Update.
	* thread-db.c: Update.
	* win32-low.c: Update.
 2018-07-03 11:36:42 -06:00
Tom Tromey fd79271bd9 Remove ptid_build 
This removes ptid_build in favor of simply calling the ptid_t
constructor directly.

gdb/ChangeLog
2018-07-03  Tom Tromey  <tom@tromey.com>

	* common/ptid.h (ptid_build): Don't declare.
	* common/ptid.c (ptid_build): Remove.
	* aix-thread.c: Update.
	* bsd-kvm.c: Update.
	* bsd-uthread.c: Update.
	* common/agent.c: Update.
	* common/ptid.c: Update.
	* common/ptid.h: Update.
	* corelow.c: Update.
	* darwin-nat.c: Update.
	* fbsd-nat.c: Update.
	* gnu-nat.c: Update.
	* linux-fork.c: Update.
	* linux-nat.c: Update.
	* linux-thread-db.c: Update.
	* nat/linux-osdata.c: Update.
	* nat/linux-procfs.c: Update.
	* nto-procfs.c: Update.
	* obsd-nat.c: Update.
	* proc-service.c: Update.
	* procfs.c: Update.
	* ravenscar-thread.c: Update.
	* remote-sim.c: Update.
	* remote.c: Update.
	* sol-thread.c: Update.
	* target.c: Update.
	* windows-nat.c: Update.

gdb/gdbserver/ChangeLog
2018-07-03  Tom Tromey  <tom@tromey.com>

	* linux-low.c: Update.
	* lynx-low.c: Update.
	* nto-low.c: Update.
	* remote-utils.c: Update.
	* spu-low.c: Update.
	* thread-db.c: Update.
	* win32-low.c: Update.
 2018-07-03 11:36:41 -06:00
Pedro Alves b7a08269ca gdb: Fix build on several hosts/ports 
Commit 00431a78b2 ("Use thread_info and inferior pointers more
throughout") missed updating some callers, like e.g.,:

 gdb/remote-sim.c: In member function 'virtual void gdbsim_target::mourn_inferior()':
 gdb/remote-sim.c:1198:50: error: cannot convert 'ptid_t' to 'thread_info*' for argument '1' to 'void delete_thread_silent(thread_info*)'
   delete_thread_silent (sim_data->remote_sim_ptid);

 gdb/mygit/src/gdb/procfs.c: In member function ‘virtual void procfs_target::detach(inferior*, int)’:
 gdb/mygit/src/gdb/procfs.c:1931:23: error: invalid conversion from ‘int’ to ‘inferior*’ [-fpermissive]
    detach_inferior (pid);
			 ^
 In file included from gdb/mygit/src/gdb/procfs.c:24:0:
 gdb/mygit/src/gdb/inferior.h:476:13: note:   initializing argument 1 of ‘void detach_inferior(inferior*)’

 etc.

This fixes it.

The delete_thread_silent calls in both go32-nat.c and remote-sim.c are
unnecessary because generic_mourn_inferior calls exit_inferior, which
deletes the inferior's threads.

gdb/ChangeLog:
2018-06-25  Pedro Alves  <palves@redhat.com>

	* windows-nat.c (windows_delete_thread): Use find_thread_ptid and
	pass thread_info pointer to delete_thread.
	(windows_nat_target::detach): Pass inferior pointer to
	detach_inferior.
	* aix-thread.c (sync_threadlists): Pass thread_info pointer to
	delete_thread.
	* bsd-kvm.c (bsd_kvm_target::close): Use discard_all_inferiors.
	* darwin-nat.c (darwin_check_new_threads): Use find_thread_ptid
	and pass a thread_info pointer to delete_thread.
	* fbsd-nat.c (fbsd_nat_target::wait): Use find_thread_ptid and
	pass thread_info pointer to delete_thread.
	* go32-nat.c (go32_nat_target::mourn_inferior): Remove
	delete_thread_silent call.
	* procfs.c (procfs_target::detach): Pass inferior pointer to
	detach_inferior.
	(procfs_target::wait): Pass thread_info pointer to delete_thread.
	* remote-sim.c (gdbsim_target::mourn_inferior): Remove
	delete_thread_silent call.
	* windows-nat.c (windows_delete_thread): Use find_thread_ptid and
	pass thread_info pointer to delete_thread.
	(windows_nat_target::detach): Pass inferior pointer to
	delete_inferior.
 2018-06-25 17:42:22 +01:00
Pedro Alves 57810aa7e8 target_ops: Use bool throughout 
After the previous target_ops/C++ patches are all squashed and merged,
this one can go in separately.

This patch adjusts all the target methods to return bool instead of int
when they're returning a boolean.

gdb/ChangeLog:
2018-05-02  Pedro Alves  <palves@redhat.com>

	* target.h (target_ops)
	<stopped_by_sw_breakpoint, supports_stopped_by_sw_breakpoint,
	stopped_by_hw_breakpoint, supports_stopped_by_hw_breakpoint,
	stopped_by_watchpoint, have_continuable_watchpoint,
	stopped_data_address, watchpoint_addr_within_range,
	can_accel_watchpoint_condition, can_run, thread_alive,
	has_all_memory, has_memory, has_stack, has_registers,
	has_execution, can_async_p, is_async_p, supports_non_stop,
	always_non_stop_p, can_execute_reverse, supports_multi_process,
	supports_enable_disable_tracepoint,
	supports_disable_randomization, supports_string_tracing,
	supports_evaluation_of_breakpoint_conditions,
	can_run_breakpoint_commands, filesystem_is_local,
	can_download_tracepoint, get_trace_state_variable_value,
	set_trace_notes, get_tib_address, use_agent, can_use_agent,
	record_is_replaying, record_will_replay,
	augmented_libraries_svr4_read>: Adjust to return bool.
	* aarch64-linux-nat.c: All implementations adjusted.
	* aix-thread.c: All implementations adjusted.
	* arm-linux-nat.c: All implementations adjusted.
	* breakpoint.c: All implementations adjusted.
	* bsd-kvm.c: All implementations adjusted.
	* bsd-uthread.c: All implementations adjusted.
	* corelow.c: All implementations adjusted.
	* ctf.c: All implementations adjusted.
	* darwin-nat.c: All implementations adjusted.
	* darwin-nat.h: All implementations adjusted.
	* exec.c: All implementations adjusted.
	* fbsd-nat.c: All implementations adjusted.
	* fbsd-nat.h: All implementations adjusted.
	* gnu-nat.c: All implementations adjusted.
	* gnu-nat.h: All implementations adjusted.
	* go32-nat.c: All implementations adjusted.
	* ia64-linux-nat.c: All implementations adjusted.
	* inf-child.c: All implementations adjusted.
	* inf-child.h: All implementations adjusted.
	* inf-ptrace.c: All implementations adjusted.
	* inf-ptrace.h: All implementations adjusted.
	* linux-nat.c: All implementations adjusted.
	* linux-nat.h: All implementations adjusted.
	* mips-linux-nat.c: All implementations adjusted.
	* nto-procfs.c: All implementations adjusted.
	* ppc-linux-nat.c: All implementations adjusted.
	* procfs.c: All implementations adjusted.
	* ravenscar-thread.c: All implementations adjusted.
	* record-btrace.c: All implementations adjusted.
	* record-full.c: All implementations adjusted.
	* remote-sim.c: All implementations adjusted.
	* remote.c: All implementations adjusted.
	* s390-linux-nat.c: All implementations adjusted.
	* sol-thread.c: All implementations adjusted.
	* spu-multiarch.c: All implementations adjusted.
	* target-delegates.c: All implementations adjusted.
	* target.c: All implementations adjusted.
	* target.h: All implementations adjusted.
	* tracefile-tfile.c: All implementations adjusted.
	* tracefile.c: All implementations adjusted.
	* tracefile.h: All implementations adjusted.
	* windows-nat.c: All implementations adjusted.
	* x86-linux-nat.h: All implementations adjusted.
	* x86-nat.h: All implementations adjusted.
 2018-05-03 00:51:30 +01:00
Pedro Alves f6ac5f3d63 Convert struct target_ops to C++ 
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.
 2018-05-03 00:48:36 +01:00
John Baldwin 7efba073e2 Use signal information to determine SIGTRAP type for FreeBSD. 
Use the signal code from siginfo_t to distinguish SIGTRAP events due
to trace traps (TRAP_TRACE) and software breakpoints (TRAP_BRKPT).
For software breakpoints, adjust the PC when the event is reported as
part of the API when supplying "stopped_by_sw_breakpoint".  Currently
FreeBSD only supports hardware watchpoints and breakpoints on x86
which are reported as trace traps.  Signal information is not used on
MIPS and sparc64 kernels which do not reliably report TRAP_BRKPT for
software breakpoints.

gdb/ChangeLog:

	* fbsd-nat.c: Include "inf-ptrace.h".
	(USE_SIGTRAP_SIGINFO): Conditionally define.
	[USE_SIGTRAP_SIGINFO] (fbsd_handle_debug_trap): New function.
	(fbsd_wait) [USE_SIGTRAP_SIGINFO]: Call "fbsd_handle_debug_trap".
	[USE_SIGTRAP_SIGINFO] (fbsd_stopped_by_sw_breakpoint): New
	function.
	[USE_SIGTRAP_SIGINFO] (fbsd_supports_stopped_by_sw_breakpoint):
	Likewise.
	[USE_SIGTRAP_SIGINFO] (fbsd_supports_stopped_by_hw_breakpoint):
	Likewise.
	(fbsd_nat_add_target) [USE_SIGTRAP_SIGINFO]: Set
	"stopped_by_sw_breakpoint", "supports_stopped_by_sw_breakpoint",
	"supports_stopped_by_hw_breakpoint" target methods.
 2018-03-03 21:25:33 -08:00
John Baldwin 386a867618 Add a new debug knob for the FreeBSD native target. 
For now this just logs information about the state of the current LWP
for each STOPPED event in fbsd_wait().

gdb/ChangeLog:

	* NEWS (Changes since GDB 8.1): Add "set/show debug fbsd-nat".
	* fbsd-nat.c (debug_fbsd_nat): New variable.
	(show_fbsd_nat_debug): New function.
	(fbsd_wait): Log LWP info if "debug_fbsd_nat" is enabled.
	(_initialize_fbsd_nat): Add "fbsd-nat" debug boolean command.

gdb/doc/ChangeLog:

	* gdb.texinfo (Debugging Output): Document "set/show debug
	fbsd-nat".
 2018-03-03 21:25:33 -08:00
John Baldwin f169cfdc08 Workaround a FreeBSD ptrace() bug with clearing thread events. 
When multiple threads within a process wish to report STOPPED events
from wait(), the kernel picks one thread event as the thread event to
report.  The chosen thread event is retrieved via PT_LWPINFO by
passing the process ID as the request pid.  If multiple events are
pending, then the subsequent wait() after resuming a process will
report another STOPPED event after resuming the process to handle the
next thread event and so on.

A single thread event is cleared as a side effect of resuming the
process with PT_CONTINUE, PT_STEP, etc.  In older kernels, however,
the request pid was used to select which thread's event was cleared
rather than always clearing the event that was just reported.  To
avoid clearing the event of the wrong LWP, always pass the process ID
instead of an LWP ID to PT_CONTINUE or PT_SYSCALL.

In the case of stepping, the process ID cannot be used with PT_STEP
since it would step the thread that reported an event which may not be
the thread indicated by PTID.  For stepping, use PT_SETSTEP to enable
stepping on the desired thread before resuming the process via
PT_CONTINUE instead of using PT_STEP.

This manifested as a failure in the
gdb.threads/continue-pending-status.exp test.  Specifically, if thread
2 reported a breakpoint and the test thus switched to thread 3 before
continuing, thread 3's event (if any) was discarded and thread 2's
breakpoint remained pending and was reported a second time as a
duplicate event.  As a result, the PC was decremented twice for the
same breakpoint resulting in an illegal instruction fault on x86.

gdb/ChangeLog:

	* fbsd-nat.c (fbsd_resume): Use PT_SETSTEP for stepping and a
	wildcard process pid for super_resume for kernels with a
	specific bug.
 2018-02-27 17:32:04 -08:00
John Baldwin 92fce24de2 Support 'info proc' for native FreeBSD processes. 
- Command line arguments are fetched via the kern.proc.args.<pid>
  sysctl.
- The 'cwd' and 'exe' values are obtained from the per-process
  file descriptor table returned by kinfo_getfile() from libutil.
- 'mappings' is implemented by walking the array of VM map entries
  returned by kinfo_getvmmap() from libutil.
- 'status' output is generated by outputting fields from the structure
  returned by the kern.proc.pid.<pid> sysctl.
- 'stat' is aliased to 'status'.

gdb/ChangeLog:

	* configure.ac: Check for kinfo_getfile in libutil.
	* configure: Regenerate.
	* config.in: Regenerate.
	* fbsd-nat.c: Include "fbsd-tdep.h".
	(fbsd_fetch_cmdline): New.
	(fbsd_fetch_kinfo_proc): Move earlier and change to return a bool
	rather than calling error.
	(fbsd_info_proc): New.
	(fbsd_thread_name): Report error if fbsd_fetch_kinfo_proc fails.
	(fbsd_wait): Report warning if fbsd_fetch_kinfo_proc fails.
	(fbsd_nat_add_target): Set "to_info_proc" to "fbsd_info_proc".
 2018-01-09 13:35:17 -08:00
John Baldwin 262f62f57d Use gdb::unique_xmalloc_ptr<> instead of a deleter that invokes free(). 
Since xfree() always wraps free(), it is safe to use the xfree deleter
for buffers allocated by library routines such as kinfo_getvmmap() that
must be released via free().

gdb/ChangeLog:

	* fbsd-nat.c (struct free_deleter): Remove.
	(fbsd_find_memory_regions): Use gdb::unique_xmalloc_ptr<>.
 2018-01-09 13:35:17 -08:00
John Baldwin b999e2038d Don't return stale data from fbsd_pid_to_exec_file for kernel processes. 
For processes without an associated executable (such as kernel processes),
the kern.proc.pathname.<pid> system control node returns a length of zero
without modifying the user's buffer.  Detect this case and return NULL
rather than the previous contents of the static buffer 'buf'.

gdb/ChangeLog:

	* fbsd-nat.c (fbsd_pid_to_exec_file) [KERN_PROC_PATHNAME]: Return
	NULL for an empty pathname.
 2018-01-09 13:35:17 -08:00
Joel Brobecker e2882c8578 Update copyright year range in all GDB files 
gdb/ChangeLog:

        Update copyright year range in all GDB files
 2018-01-02 07:38:06 +04:00
Pedro Alves 649a140ccf target_set_syscall_catchpoint, use gdb::array_view and bool 
I noticed that we're passing down a data/size pair to
target_ops::to_set_syscall_catchpoint.  This commit makes use of
gdb::array_view instead.  While at it, use bool where appropriate as
well.

gdb/ChangeLog:

	* break-catch-syscall.c (insert_catch_syscall)
	(remove_catch_syscall): Adjust to pass reference to
	inf_data->syscalls_counts directly via gdb::array_view.
	* fbsd-nat.c (fbsd_set_syscall_catchpoint): Adjust to use bool
	and gdb::array_view.
	* linux-nat.c (linux_child_set_syscall_catchpoint): Likewise.
	* remote.c (remote_set_syscall_catchpoint): Likewise.
	* target-debug.h (target_debug_print_bool): New.
	(define target_debug_print_gdb_array_view_const_int): New.
	* target-delegates.c: Regenerate.
	* target.h (target_ops) <to_set_syscall_catchpoint>: Use
	gdb::array_view and bool.
	(target_set_syscall_catchpoint): Likewise.
 2017-12-06 17:49:37 -05:00
John Baldwin a181c0bf74 Use gdbarch_long_bit to determine layout of FreeBSD siginfo_t. 
FreeBSD architectures are either ILP32 or LP64 resulting in two
different layouts for siginfo_t.  Previously, the 'bits_per_word'
member of bfd_arch_info was used to determine the layout to use for a
given FreeBSD architecture.  However, mipsn32 architectures inherit
from a 64-bit mips architecture where bits_per_word is 64.  As a
result, $_siginfo was not properly extracted from FreeBSD/mipsn32 core
dumps.  Fix this by using gdbarch_long_bit instead of 'bits_per_word'
to determine if a FreeBSD architecture is ILP32 or LP64.

gdb/ChangeLog:

	* fbsd-nat.c (fbsd_siginfo_size): Use gdbarch_long_bit.
	(fbsd_convert_siginfo): Likewise.
	* fbsd-tdep.c (fbsd_core_xfer_siginfo): Likewise.
 2017-10-09 09:54:42 -07:00
John Baldwin 481695ed5f Remove unnecessary function prototypes. 
These prototypes were required when compiling GDB as C but are not
required for C++.

gdb/ChangeLog:

	* aarch64-linux-nat.c: Remove _initialize_aarch64_linux_nat
	prototype.
	* aarch64-linux-tdep.c: Remove _initialize_aarch64_linux_tdep
	prototype.
	* aarch64-newlib-tdep.c: Remove _initialize_aarch64_newlib_tdep
	prototype.
	* aarch64-tdep.c: Remove _initialize_aarch64_tdep prototype.
	* ada-exp.y: Remove _initialize_ada_exp prototype.
	* ada-lang.c: Remove _initialize_ada_language prototype.
	* ada-tasks.c: Remove _initialize_tasks prototype.
	* addrmap.c: Remove _initialize_addrmap prototype.
	* agent.c: Remove _initialize_agent prototype.
	* aix-thread.c: Remove _initialize_aix_thread prototype.
	* alpha-bsd-nat.c: Remove _initialize_alphabsd_nat prototype.
	* alpha-linux-nat.c: Remove _initialize_alpha_linux_nat prototype.
	* alpha-linux-tdep.c: Remove _initialize_alpha_linux_tdep
	prototype.
	* alpha-nbsd-tdep.c: Remove _initialize_alphanbsd_tdep prototype.
	* alpha-obsd-tdep.c: Remove _initialize_alphaobsd_tdep prototype.
	* alpha-tdep.c: Remove _initialize_alpha_tdep prototype.
	* amd64-darwin-tdep.c: Remove _initialize_amd64_darwin_tdep
	prototype.
	* amd64-dicos-tdep.c: Remove _initialize_amd64_dicos_tdep
	prototype.
	* amd64-fbsd-nat.c: Remove _initialize_amd64fbsd_nat prototype.
	* amd64-fbsd-tdep.c: Remove _initialize_amd64fbsd_tdep prototype.
	* amd64-linux-nat.c: Remove _initialize_amd64_linux_nat prototype.
	* amd64-linux-tdep.c: Remove _initialize_amd64_linux_tdep
	prototype.
	* amd64-nbsd-nat.c: Remove _initialize_amd64nbsd_nat prototype.
	* amd64-nbsd-tdep.c: Remove _initialize_amd64nbsd_tdep prototype.
	* amd64-obsd-nat.c: Remove _initialize_amd64obsd_nat prototype.
	* amd64-obsd-tdep.c: Remove _initialize_amd64obsd_tdep prototype.
	* amd64-sol2-tdep.c: Remove _initialize_amd64_sol2_tdep prototype.
	* amd64-tdep.c: Remove _initialize_amd64_tdep prototype.
	* amd64-windows-nat.c: Remove _initialize_amd64_windows_nat
	prototype.
	* amd64-windows-tdep.c: Remove _initialize_amd64_windows_tdep
	prototype.
	* annotate.c: Remove _initialize_annotate prototype.
	* arc-newlib-tdep.c: Remove _initialize_arc_newlib_tdep prototype.
	* arc-tdep.c: Remove _initialize_arc_tdep prototype.
	* arch-utils.c: Remove _initialize_gdbarch_utils prototype.
	* arm-linux-nat.c: Remove _initialize_arm_linux_nat prototype.
	* arm-linux-tdep.c: Remove _initialize_arm_linux_tdep prototype.
	* arm-nbsd-tdep.c: Remove _initialize_arm_netbsd_tdep prototype.
	* arm-obsd-tdep.c: Remove _initialize_armobsd_tdep prototype.
	* arm-symbian-tdep.c: Remove _initialize_arm_symbian_tdep
	prototype.
	* arm-tdep.c: Remove _initialize_arm_tdep prototype.
	* arm-wince-tdep.c: Remove _initialize_arm_wince_tdep prototype.
	* auto-load.c: Remove _initialize_auto_load prototype.
	* auxv.c: Remove _initialize_auxv prototype.
	* avr-tdep.c: Remove _initialize_avr_tdep prototype.
	* ax-gdb.c: Remove _initialize_ax_gdb prototype.
	* bfin-linux-tdep.c: Remove _initialize_bfin_linux_tdep prototype.
	* bfin-tdep.c: Remove _initialize_bfin_tdep prototype.
	* break-catch-sig.c: Remove _initialize_break_catch_sig prototype.
	* break-catch-syscall.c: Remove _initialize_break_catch_syscall
	prototype.
	* break-catch-throw.c: Remove _initialize_break_catch_throw
	prototype.
	* breakpoint.c: Remove _initialize_breakpoint prototype.
	* bsd-uthread.c: Remove _initialize_bsd_uthread prototype.
	* btrace.c: Remove _initialize_btrace prototype.
	* charset.c: Remove _initialize_charset prototype.
	* cli/cli-cmds.c: Remove _initialize_cli_cmds prototype.
	* cli/cli-dump.c: Remove _initialize_cli_dump prototype.
	* cli/cli-interp.c: Remove _initialize_cli_interp prototype.
	* cli/cli-logging.c: Remove _initialize_cli_logging prototype.
	* cli/cli-script.c: Remove _initialize_cli_script prototype.
	* coff-pe-read.c: Remove _initialize_coff_pe_read prototype.
	* coffread.c: Remove _initialize_coffread prototype.
	* compile/compile.c: Remove _initialize_compile prototype.
	* complaints.c: Remove _initialize_complaints prototype.
	* completer.c: Remove _initialize_completer prototype.
	* copying.awk: Remove _initialize_copying prototype.
	* copying.c: Regenerate.
	* core-regset.c: Remove _initialize_core_regset prototype.
	* corefile.c: Remove _initialize_core prototype.
	* corelow.c: Remove _initialize_corelow prototype.
	* cp-abi.c: Remove _initialize_cp_abi prototype.
	* cp-namespace.c: Remove _initialize_cp_namespace prototype.
	* cp-support.c: Remove _initialize_cp_support prototype.
	* cp-valprint.c: Remove _initialize_cp_valprint prototype.
	* cris-linux-tdep.c: Remove _initialize_cris_linux_tdep prototype.
	* cris-tdep.c: Remove _initialize_cris_tdep prototype.
	* ctf.c: Remove _initialize_ctf prototype.
	* d-lang.c: Remove _initialize_d_language prototype.
	* darwin-nat-info.c: Remove _initialize_darwin_info_commands
	prototype.
	* darwin-nat.c: Remove _initialize_darwin_inferior prototype.
	* dbxread.c: Remove _initialize_dbxread prototype.
	* dcache.c: Remove _initialize_dcache prototype.
	* demangle.c: Remove _initialize_demangler prototype.
	* disasm-selftests.c: Remove _initialize_disasm_selftests
	prototype.
	* disasm.c: Remove _initialize_disasm prototype.
	* dtrace-probe.c: Remove _initialize_dtrace_probe prototype.
	* dummy-frame.c: Remove _initialize_dummy_frame prototype.
	* dwarf2-frame-tailcall.c: Remove _initialize_tailcall_frame
	prototype.
	* dwarf2-frame.c: Remove _initialize_dwarf2_frame prototype.
	* dwarf2expr.c: Remove _initialize_dwarf2expr prototype.
	* dwarf2loc.c: Remove _initialize_dwarf2loc prototype.
	* dwarf2read.c: Remove _initialize_dwarf2_read prototype.
	* elfread.c: Remove _initialize_elfread prototype.
	* exec.c: Remove _initialize_exec prototype.
	* extension.c: Remove _initialize_extension prototype.
	* f-lang.c: Remove _initialize_f_language prototype.
	* f-valprint.c: Remove _initialize_f_valprint prototype.
	* fbsd-nat.c: Remove _initialize_fbsd_nat prototype.
	* fbsd-tdep.c: Remove _initialize_fbsd_tdep prototype.
	* filesystem.c: Remove _initialize_filesystem prototype.
	* findcmd.c: Remove _initialize_mem_search prototype.
	* fork-child.c: Remove _initialize_fork_child prototype.
	* frame-base.c: Remove _initialize_frame_base prototype.
	* frame-unwind.c: Remove _initialize_frame_unwind prototype.
	* frame.c: Remove _initialize_frame prototype.
	* frv-linux-tdep.c: Remove _initialize_frv_linux_tdep prototype.
	* frv-tdep.c: Remove _initialize_frv_tdep prototype.
	* ft32-tdep.c: Remove _initialize_ft32_tdep prototype.
	* gcore.c: Remove _initialize_gcore prototype.
	* gdb_bfd.c: Remove _initialize_gdb_bfd prototype.
	* gdbarch.c: Regenerate.
	* gdbarch.sh: Remove _initialize_gdbarch prototype.
	* gdbtypes.c: Remove _initialize_gdbtypes prototype.
	* gnu-nat.c: Remove _initialize_gnu_nat prototype.
	* gnu-v2-abi.c: Remove _initialize_gnu_v2_abi prototype.
	* gnu-v3-abi.c: Remove _initialize_gnu_v3_abi prototype.
	* go-lang.c: Remove _initialize_go_language prototype.
	* go32-nat.c: Remove _initialize_go32_nat prototype.
	* guile/guile.c: Remove _initialize_guile prototype.
	* h8300-tdep.c: Remove _initialize_h8300_tdep prototype.
	* hppa-linux-nat.c: Remove _initialize_hppa_linux_nat prototype.
	* hppa-linux-tdep.c: Remove _initialize_hppa_linux_tdep prototype.
	* hppa-nbsd-nat.c: Remove _initialize_hppanbsd_nat prototype.
	* hppa-nbsd-tdep.c: Remove _initialize_hppanbsd_tdep prototype.
	* hppa-obsd-nat.c: Remove _initialize_hppaobsd_nat prototype.
	* hppa-obsd-tdep.c: Remove _initialize_hppaobsd_tdep prototype.
	* hppa-tdep.c: Remove _initialize_hppa_tdep prototype.
	* i386-bsd-nat.c: Remove _initialize_i386bsd_nat prototype.
	* i386-cygwin-tdep.c: Remove _initialize_i386_cygwin_tdep
	prototype.
	* i386-darwin-tdep.c: Remove _initialize_i386_darwin_tdep
	prototype.
	* i386-dicos-tdep.c: Remove _initialize_i386_dicos_tdep prototype.
	* i386-fbsd-nat.c: Remove _initialize_i386fbsd_nat prototype.
	* i386-fbsd-tdep.c: Remove _initialize_i386fbsd_tdep prototype.
	* i386-gnu-nat.c: Remove _initialize_i386gnu_nat prototype.
	* i386-gnu-tdep.c: Remove _initialize_i386gnu_tdep prototype.
	* i386-linux-nat.c: Remove _initialize_i386_linux_nat prototype.
	* i386-linux-tdep.c: Remove _initialize_i386_linux_tdep prototype.
	* i386-nbsd-nat.c: Remove _initialize_i386nbsd_nat prototype.
	* i386-nbsd-tdep.c: Remove _initialize_i386nbsd_tdep prototype.
	* i386-nto-tdep.c: Remove _initialize_i386nto_tdep prototype.
	* i386-obsd-nat.c: Remove _initialize_i386obsd_nat prototype.
	* i386-obsd-tdep.c: Remove _initialize_i386obsd_tdep prototype.
	* i386-sol2-nat.c: Remove _initialize_amd64_sol2_nat prototype.
	* i386-sol2-tdep.c: Remove _initialize_amd64_sol2_tdep prototype.
	* i386-tdep.c: Remove _initialize_i386_tdep prototype.
	* i386-windows-nat.c: Remove _initialize_i386_windows_nat
	prototype.
	* ia64-libunwind-tdep.c: Remove _initialize_libunwind_frame
	prototype.
	* ia64-linux-nat.c: Remove _initialize_ia64_linux_nat prototype.
	* ia64-linux-tdep.c: Remove _initialize_ia64_linux_tdep prototype.
	* ia64-tdep.c: Remove _initialize_ia64_tdep prototype.
	* ia64-vms-tdep.c: Remove _initialize_ia64_vms_tdep prototype.
	* infcall.c: Remove _initialize_infcall prototype.
	* infcmd.c: Remove _initialize_infcmd prototype.
	* inferior.c: Remove _initialize_inferiors prototype.
	* inflow.c: Remove _initialize_inflow prototype.
	* infrun.c: Remove _initialize_infrun prototype.
	* interps.c: Remove _initialize_interpreter prototype.
	* iq2000-tdep.c: Remove _initialize_iq2000_tdep prototype.
	* jit.c: Remove _initialize_jit prototype.
	* language.c: Remove _initialize_language prototype.
	* linux-fork.c: Remove _initialize_linux_fork prototype.
	* linux-nat.c: Remove _initialize_linux_nat prototype.
	* linux-tdep.c: Remove _initialize_linux_tdep prototype.
	* linux-thread-db.c: Remove _initialize_thread_db prototype.
	* lm32-tdep.c: Remove _initialize_lm32_tdep prototype.
	* m2-lang.c: Remove _initialize_m2_language prototype.
	* m32c-tdep.c: Remove _initialize_m32c_tdep prototype.
	* m32r-linux-nat.c: Remove _initialize_m32r_linux_nat prototype.
	* m32r-linux-tdep.c: Remove _initialize_m32r_linux_tdep prototype.
	* m32r-tdep.c: Remove _initialize_m32r_tdep prototype.
	* m68hc11-tdep.c: Remove _initialize_m68hc11_tdep prototype.
	* m68k-bsd-nat.c: Remove _initialize_m68kbsd_nat prototype.
	* m68k-bsd-tdep.c: Remove _initialize_m68kbsd_tdep prototype.
	* m68k-linux-nat.c: Remove _initialize_m68k_linux_tdep prototype.
	* m68k-linux-tdep.c: Remove _initialize_m68k_linux_tdep prototype.
	* m68k-tdep.c: Remove _initialize_m68k_tdep prototype.
	* m88k-bsd-nat.c: Remove _initialize_m68kbsd_nat prototype.
	* m88k-tdep.c: Remove _initialize_m68kbsd_tdep prototype.
	* machoread.c: Remove _initialize_machoread prototype.
	* macrocmd.c: Remove _initialize_macrocmd prototype.
	* macroscope.c: Remove _initialize_macroscope prototype.
	* maint.c: Remove _initialize_maint_cmds prototype.
	* mdebugread.c: Remove _initialize_mdebugread prototype.
	* memattr.c: Remove _initialize_mem prototype.
	* mep-tdep.c: Remove _initialize_mep_tdep prototype.
	* mi/mi-cmd-env.c: Remove _initialize_mi_cmd_env prototype.
	* mi/mi-cmds.c: Remove _initialize_mi_cmds prototype.
	* mi/mi-interp.c: Remove _initialize_mi_interp prototype.
	* mi/mi-main.c: Remove _initialize_mi_main prototype.
	* microblaze-linux-tdep.c: Remove
	_initialize_microblaze_linux_tdep prototype.
	* microblaze-tdep.c: Remove _initialize_microblaze_tdep prototype.
	* mips-fbsd-nat.c: Remove _initialize_mips_fbsd_nat prototype.
	* mips-fbsd-tdep.c: Remove _initialize_mips_fbsd_tdep prototype.
	* mips-linux-nat.c: Remove _initialize_mips_linux_nat prototype.
	* mips-linux-tdep.c: Remove _initialize_mips_linux_tdep prototype.
	* mips-nbsd-nat.c: Remove _initialize_mipsnbsd_nat prototype.
	* mips-nbsd-tdep.c: Remove _initialize_mipsnbsd_tdep prototype.
	* mips-sde-tdep.c: Remove _initialize_mips_sde_tdep prototype.
	* mips-tdep.c: Remove _initialize_mips_tdep prototype.
	* mips64-obsd-nat.c: Remove _initialize_mips64obsd_nat prototype.
	* mips64-obsd-tdep.c: Remove _initialize_mips64obsd_tdep
	prototype.
	* mipsread.c: Remove _initialize_mipsread prototype.
	* mn10300-linux-tdep.c: Remove _initialize_mn10300_linux_tdep
	prototype.
	* mn10300-tdep.c: Remove _initialize_mn10300_tdep prototype.
	* moxie-tdep.c: Remove _initialize_moxie_tdep prototype.
	* msp430-tdep.c: Remove _initialize_msp430_tdep prototype.
	* mt-tdep.c: Remove _initialize_mt_tdep prototype.
	* nds32-tdep.c: Remove _initialize_nds32_tdep prototype.
	* nios2-linux-tdep.c: Remove _initialize_nios2_linux_tdep
	prototype.
	* nios2-tdep.c: Remove _initialize_nios2_tdep prototype.
	* nto-procfs.c: Remove _initialize_procfs prototype.
	* nto-tdep.c: Remove _initialize_nto_tdep prototype.
	* objc-lang.c: Remove _initialize_objc_language prototype.
	* objfiles.c: Remove _initialize_objfiles prototype.
	* observer.c: Remove observer_test_first_notification_function,
	observer_test_second_notification_function,
	observer_test_third_notification_function, and
	_initialize_observer prototypes.
	* opencl-lang.c: Remove _initialize_opencl_language prototypes.
	* osabi.c: Remove _initialize_gdb_osabi prototype.
	* osdata.c: Remove _initialize_osdata prototype.
	* p-valprint.c: Remove _initialize_pascal_valprint prototype.
	* parse.c: Remove _initialize_parse prototype.
	* ppc-fbsd-nat.c: Remove _initialize_ppcfbsd_nat prototype.
	* ppc-fbsd-tdep.c: Remove _initialize_ppcfbsd_tdep prototype.
	* ppc-linux-nat.c: Remove _initialize_ppc_linux_nat prototype.
	* ppc-linux-tdep.c: Remove _initialize_ppc_linux_tdep prototype.
	* ppc-nbsd-nat.c: Remove _initialize_ppcnbsd_nat prototype.
	* ppc-nbsd-tdep.c: Remove _initialize_ppcnbsd_tdep prototype.
	* ppc-obsd-nat.c: Remove _initialize_ppcobsd_nat prototype.
	* ppc-obsd-tdep.c: Remove _initialize_ppcobsd_tdep prototype.
	* printcmd.c: Remove _initialize_printcmd prototype.
	* probe.c: Remove _initialize_probe prototype.
	* proc-api.c: Remove _initialize_proc_api prototype.
	* proc-events.c: Remove _initialize_proc_events prototype.
	* proc-service.c: Remove _initialize_proc_service prototype.
	* procfs.c: Remove _initialize_procfs prototype.
	* psymtab.c: Remove _initialize_psymtab prototype.
	* python/python.c: Remove _initialize_python prototype.
	* ravenscar-thread.c: Remove _initialize_ravenscar prototype.
	* record-btrace.c: Remove _initialize_record_btrace prototype.
	* record-full.c: Remove _initialize_record_full prototype.
	* record.c: Remove _initialize_record prototype.
	* regcache.c: Remove _initialize_regcache prototype.
	* reggroups.c: Remove _initialize_reggroup prototype.
	* remote-notif.c: Remove _initialize_notif prototype.
	* remote-sim.c: Remove _initialize_remote_sim prototype.
	* remote.c: Remove _initialize_remote prototype.
	* reverse.c: Remove _initialize_reverse prototype.
	* rl78-tdep.c: Remove _initialize_rl78_tdep prototype.
	* rs6000-aix-tdep.c: Remove _initialize_rs6000_aix_tdep prototype.
	* rs6000-lynx178-tdep.c: Remove _initialize_rs6000_lynx178_tdep
	prototype.
	* rs6000-nat.c: Remove _initialize_rs6000_nat prototype.
	* rs6000-tdep.c: Remove _initialize_rs6000_tdep prototype.
	* rust-exp.y: Remove _initialize_rust_exp prototype.
	* rx-tdep.c: Remove _initialize_rx_tdep prototype.
	* s390-linux-nat.c: Remove _initialize_s390_nat prototype.
	* s390-linux-tdep.c: Remove _initialize_s390_tdep prototype.
	* score-tdep.c: Remove _initialize_score_tdep prototype.
	* selftest-arch.c: Remove _initialize_selftests_foreach_arch
	prototype.
	* ser-go32.c: Remove _initialize_ser_dos prototype.
	* ser-mingw.c: Remove _initialize_ser_windows prototype.
	* ser-pipe.c: Remove _initialize_ser_pipe prototype.
	* ser-tcp.c: Remove _initialize_ser_tcp prototype.
	* ser-unix.c: Remove _initialize_ser_hardwire prototype.
	* serial.c: Remove _initialize_serial prototype.
	* sh-linux-tdep.c: Remove _initialize_sh_linux_tdep prototype.
	* sh-nbsd-nat.c: Remove _initialize_shnbsd_nat prototype.
	* sh-nbsd-tdep.c: Remove _initialize_shnbsd_tdep prototype.
	* sh-tdep.c: Remove _initialize_sh_tdep prototype.
	* skip.c: Remove _initialize_step_skip prototype.
	* sol-thread.c: Remove _initialize_sol_thread prototype.
	* solib-aix.c: Remove _initialize_solib_aix prototype.
	* solib-darwin.c: Remove _initialize_darwin_solib prototype.
	* solib-dsbt.c: Remove _initialize_dsbt_solib prototype.
	* solib-frv.c: Remove _initialize_frv_solib prototype.
	* solib-spu.c: Remove _initialize_spu_solib prototype.
	* solib-svr4.c: Remove _initialize_svr4_solib prototype.
	* solib-target.c: Remove _initialize_solib_target prototype.
	* solib.c: Remove _initialize_solib prototype.
	* source.c: Remove _initialize_source prototype.
	* sparc-linux-nat.c: Remove _initialize_sparc_linux_nat prototype.
	* sparc-linux-tdep.c: Remove _initialize_sparc_linux_tdep
	prototype.
	* sparc-nat.c: Remove _initialize_sparc_nat prototype.
	* sparc-nbsd-nat.c: Remove _initialize_sparcnbsd_nat prototype.
	* sparc-nbsd-tdep.c: Remove _initialize_sparcnbsd_tdep prototype.
	* sparc-obsd-tdep.c: Remove _initialize_sparc32obsd_tdep
	prototype.
	* sparc-sol2-nat.c: Remove _initialize_sparc_sol2_nat prototype.
	* sparc-sol2-tdep.c: Remove _initialize_sparc_sol2_tdep prototype.
	* sparc-tdep.c: Remove _initialize_sparc_tdep prototype.
	* sparc64-fbsd-nat.c: Remove _initialize_sparc64fbsd_nat
	prototype.
	* sparc64-fbsd-tdep.c: Remove _initialize_sparc64fbsd_tdep
	prototype.
	* sparc64-linux-nat.c: Remove _initialize_sparc64_linux_nat
	prototype.
	* sparc64-linux-tdep.c: Remove _initialize_sparc64_linux_tdep
	prototype.
	* sparc64-nat.c: Remove _initialize_sparc64_nat prototype.
	* sparc64-nbsd-nat.c: Remove _initialize_sparc64nbsd_nat
	prototype.
	* sparc64-nbsd-tdep.c: Remove _initialize_sparc64nbsd_tdep
	prototype.
	* sparc64-obsd-nat.c: Remove _initialize_sparc64obsd_nat
	prototype.
	* sparc64-obsd-tdep.c: Remove _initialize_sparc64obsd_tdep
	prototype.
	* sparc64-sol2-tdep.c: Remove _initialize_sparc64_sol2_tdep
	prototype.
	* spu-linux-nat.c: Remove _initialize_spu_nat prototype.
	* spu-multiarch.c: Remove _initialize_spu_multiarch prototype.
	* spu-tdep.c: Remove _initialize_spu_tdep prototype.
	* stabsread.c: Remove _initialize_stabsread prototype.
	* stack.c: Remove _initialize_stack prototype.
	* stap-probe.c: Remove _initialize_stap_probe prototype.
	* std-regs.c: Remove _initialize_frame_reg prototype.
	* symfile-debug.c: Remove _initialize_symfile_debug prototype.
	* symfile-mem.c: Remove _initialize_symfile_mem prototype.
	* symfile.c: Remove _initialize_symfile prototype.
	* symmisc.c: Remove _initialize_symmisc prototype.
	* symtab.c: Remove _initialize_symtab prototype.
	* target-dcache.c: Remove _initialize_target_dcache prototype.
	* target-descriptions.c: Remove _initialize_target_descriptions
	prototype.
	* thread.c: Remove _initialize_thread prototype.
	* tic6x-linux-tdep.c: Remove _initialize_tic6x_linux_tdep
	prototype.
	* tic6x-tdep.c: Remove _initialize_tic6x_tdep prototype.
	* tilegx-linux-nat.c: Remove _initialize_tile_linux_nat prototype.
	* tilegx-linux-tdep.c: Remove _initialize_tilegx_linux_tdep
	prototype.
	* tilegx-tdep.c: Remove _initialize_tilegx_tdep prototype.
	* tracefile-tfile.c: Remove _initialize_tracefile_tfile prototype.
	* tracefile.c: Remove _initialize_tracefile prototype.
	* tracepoint.c: Remove _initialize_tracepoint prototype.
	* tui/tui-hooks.c: Remove _initialize_tui_hooks prototype.
	* tui/tui-interp.c: Remove _initialize_tui_interp prototype.
	* tui/tui-layout.c: Remove _initialize_tui_layout prototype.
	* tui/tui-regs.c: Remove _initialize_tui_regs prototype.
	* tui/tui-stack.c: Remove _initialize_tui_stack prototype.
	* tui/tui-win.c: Remove _initialize_tui_win prototype.
	* tui/tui.c: Remove _initialize_tui prototype.
	* typeprint.c: Remove _initialize_typeprint prototype.
	* user-regs.c: Remove _initialize_user_regs prototype.
	* utils.c: Remove _initialize_utils prototype.
	* v850-tdep.c: Remove _initialize_v850_tdep prototype.
	* valarith.c: Remove _initialize_valarith prototype.
	* valops.c: Remove _initialize_valops prototype.
	* valprint.c: Remove _initialize_valprint prototype.
	* value.c: Remove _initialize_values prototype.
	* varobj.c: Remove _initialize_varobj prototype.
	* vax-bsd-nat.c: Remove _initialize_vaxbsd_nat prototype.
	* vax-nbsd-tdep.c: Remove _initialize_vaxnbsd_tdep prototype.
	* vax-tdep.c: Remove _initialize_vax_tdep prototype.
	* windows-nat.c: Remove _initialize_windows_nat,
	_initialize_check_for_gdb_ini, and _initialize_loadable
	prototypes.
	* windows-tdep.c: Remove _initialize_windows_tdep prototype.
	* xcoffread.c: Remove _initialize_xcoffread prototype.
	* xml-support.c: Remove _initialize_xml_support prototype.
	* xstormy16-tdep.c: Remove _initialize_xstormy16_tdep prototype.
	* xtensa-linux-nat.c: Remove _initialize_xtensa_linux_nat
	prototype.
	* xtensa-linux-tdep.c: Remove _initialize_xtensa_linux_tdep
	prototype.
	* xtensa-tdep.c: Remove _initialize_xtensa_tdep prototype.
 2017-09-09 11:02:37 -07:00
John Baldwin 329d5e7e56 Use an array type (lwpid_t[]) for the array of lwp IDs. 
gdb/ChangeLog:

	* fbsd-nat.c (fbsd_add_threads): Use array type for `lwps'.
 2017-08-21 09:35:25 -07:00
John Baldwin 0335ac6d12 Fix compile on big-endian platforms in siginfo_t converter. 
gdb/ChangeLog:

	* fbsd-nat.c (fbsd_convert_siginfo): Fix compile on big-endian
	platforms.
 2017-08-15 08:05:21 -07:00
John Baldwin e8c6b620f7 Replace home-grown linked-lists in FreeBSD's native target with STL lists. 
FreeBSD's native target uses linked-lists to keep track of pending fork
events and fake vfork done events.  Replace the first list with std::list
and the second with std::forward_list.

gdb/ChangeLog:

	* fbsd-nat.c (struct fbsd_fork_info): Remove.
	(fbsd_pending_children): Use std::list.
	(fbsd_remember_child): Likewise.
	(fbsd_is_child_pending): Likewise.
	(fbsd_pending_vfork_done): Use std::forward_list.
	(fbsd_add_vfork_done): Likewise.
	(fbsd_is_vfork_done_pending): Likewise.
	(fbsd_next_vfork_done): Likewise.
 2017-08-09 15:24:46 -07:00
John Baldwin e4a26669b9 Replace remaining cleanups in fbsd-nat.c. 
- Use a custom deleter with std::unique_ptr to free() memory returned
  by kinfo_getvmmap().
- Use std::string with string_printf() to generate the pathname of the
  procfs 'map' file.
- Use gdb::byte_vector to manage the dynamic buffer for
  TARGET_OBJECT_AUXV and the dynamically allocated array of LWP IDs.

gdb/ChangeLog:

	* fbsd-nat.c [HAVE_KINFO_GETVMMAP] (struct free_deleter): New.
	(fbsd_find_memory_regions): Use free_deleter with std::unique_ptr.
	[!HAVE_KINFO_GETVMMAP] (fbsd_find_memory_regions): Use std::string
	for `mapfilename'.
	(fbsd_xfer_partial): Use gdb::byte_vector.
	(fbsd_add_threads): Likewise.
 2017-08-09 15:24:46 -07:00
John Baldwin 142311d325 Fix compile in the !HAVE_KINFO_GETVMMAP case. 
gdb/ChangeLog:

	* fbsd-nat.c: [!HAVE_KINFO_GETVMMAP]: Include <sys/user.h> and
	"filestuff.h".
	(fbsd_find_memory_regions): Fix `mapfile' initialization.
 2017-08-09 15:24:46 -07:00
Tom Tromey 7cd06d6e89 Use gdb_file_up in fbsd-nat.c 
This updates fbsd-nat.c to use gdb_file_up.  This removes a use of a
cleanup, and helps remove make_cleanup_fclose in a later patch.

I have no way to test this patch.

ChangeLog
2017-08-03  Tom Tromey  <tom@tromey.com>

	* fbsd-nat.c (fbsd_find_memory_regions): Update.
 2017-08-03 07:58:54 -06:00
John Baldwin 929edea98d Fetch signal information for native FreeBSD processes. 
Use the `pl_siginfo' field in the `struct ptrace_lwpinfo' object returned
by the PT_LWPINFO ptrace() request to supply the current contents of
$_siginfo for each thread.  Note that FreeBSD does not supply a way to
modify the signal information for a thread, so $_siginfo is read-only for
FreeBSD.

To handle 32-bit processes on a 64-bit host, define types for 32-bit
compatible siginfo_t and convert the 64-bit siginfo_t to the 32-bit
equivalent when supplying information for a 32-bit process.

gdb/ChangeLog:

	* fbsd-nat.c [PT_LWPINFO && __LP64__] (union sigval32)
	(struct siginfo32): New.
	[PT_LWPINFO] (fbsd_siginfo_size, fbsd_convert_siginfo): New.
	(fbsd_xfer_partial) [PT_LWPINFO]: Handle TARGET_OBJECT_SIGNAL_INFO
	via ptrace(PT_LWPINFO).
 2017-07-07 16:05:47 -07:00
John Baldwin d56060f08a PR threads/20743: Don't attempt to suspend or resume exited threads. 
When resuming a native FreeBSD process, ignore exited threads when
suspending/resuming individual threads prior to continuing the process.

gdb/ChangeLog:

	PR threads/20743
	* fbsd-nat.c (resume_one_thread_cb): Remove.
	(resume_all_threads_cb): Remove.
	(fbsd_resume): Use ALL_NON_EXITED_THREADS instead of
	iterate_over_threads.
 2017-04-18 09:45:37 -07:00
Pedro Alves 7a1149643d -Wwrite-strings: Constify target_pid_to_str and target_thread_extra_thread_info 
-Wwrite-strings flagged a missing cast for example here:

   static char *
   ravenscar_extra_thread_info (struct target_ops *self, struct thread_info *tp)
   {
     return "Ravenscar task";

Since callers are not supposed to free the string returned by these
methods, change the methods' signature to return const strings.

gdb/ChangeLog:
2017-04-05  Pedro Alves  <palves@redhat.com>

	* aix-thread.c (aix_thread_pid_to_str)
	(aix_thread_extra_thread_info): Constify.
	* bsd-kvm.c (bsd_kvm_pid_to_str): Constify.
	* bsd-uthread.c (bsd_uthread_extra_thread_info)
	(bsd_uthread_pid_to_str): Constify.
	* corelow.c (core_pid_to_str): Constify.
	* darwin-nat.c (darwin_pid_to_str): Constify.
	* fbsd-nat.c (fbsd_pid_to_str): Constify.
	* fbsd-tdep.c (fbsd_core_pid_to_str, gdbarch_core_pid_to_str):
	Constify.
	* gnu-nat.c (gnu_pid_to_str): Constify.
	* go32-nat.c (go32_pid_to_str): Constify.
	* i386-cygwin-tdep.c (i386_windows_core_pid_to_str): Constify.
	* inf-ptrace.c (inf_ptrace_pid_to_str): Constify.
	* inferior.c (inferior_pid_to_str): Constify.
	* linux-nat.c (linux_nat_pid_to_str): Constify.
	* linux-tdep.c (linux_core_pid_to_str): Constify.
	* linux-thread-db.c (thread_db_pid_to_str)
	(thread_db_extra_thread_info): Constify.
	* nto-tdep.c (nto_extra_thread_info): Constify.
	* nto-tdep.h (nto_extra_thread_info): Constify.
	* obsd-nat.c (obsd_pid_to_str): Constify.
	* procfs.c (procfs_pid_to_str): Constify.
	* ravenscar-thread.c (ravenscar_extra_thread_info)
	(ravenscar_pid_to_str): Constify.
	* remote-sim.c (gdbsim_pid_to_str): Constify.
	* remote.c (remote_threads_extra_info, remote_pid_to_str):
	Constify.
	* sol-thread.c (solaris_pid_to_str): Constify.
	* sol2-tdep.c (sol2_core_pid_to_str): Constify.
	* sol2-tdep.h (sol2_core_pid_to_str): Constify.
	* target.c (default_pid_to_str, target_pid_to_str)
	(normal_pid_to_str, default_pid_to_str): Constify.
	* target.h (target_ops::to_pid_to_str)
	(target_ops::to_extra_thread_info): Constify.
	(target_pid_to_str, normal_pid_to_str): Constify.
	* windows-nat.c (windows_pid_to_str): Constify.
	* gdbarch.sh (core_pid_to_str): Constify.
	* target-delegates.c: Regenerate.
	* gdbarch.h, gdbarch.c: Regenerate.
 2017-04-05 19:21:34 +01:00
John Baldwin 4c7bf4f91b Remove support for using the bsd-uthread target on FreeBSD. 
The bsd-uthread target supports an old thread library ("libc_r") that
was last included in FreeBSD release 6.4 released in 2008.  However,
this library has not been used as the default library since FreeBSD
5.0 (2003) and 4.11 (2005).  Thread support for modern FreeBSD binaries
is provided via "normal" LWP support in core files and the native
FreeBSD target.

gdb/ChangeLog:

	* amd64-fbsd-tdep.c: Remove "bsd-uthread.h" include.
	(amd64fbsd_jmp_buf_reg_offset): Remove.
	(amd64fbsd_supply_uthread): Remove function.
	(amd64fbsd_collect_uthread): Remove function.
	(amd64fbsd_init_abi): Don't set bsd-uthread callbacks.
	* configure.tgt (i[34567]86-*-freebsd*): Remove bsd-uthread.o.
	(x86_64-*-freebsd*): Remove bsd-uthread.o.
	(fbsd-nat.c): Update comment.
	* i386-fbsd-tdep.c: Remove "bsd-uthread.h" include.
	(i386fbsd_jmp_buf_reg_offset): Remove.
	(i386fbsd_supply_uthread): Remove function.
	(i386fbsd_collect_uthread): Remove function.
	(i386fbsd_init_abi): Don't set bsd-uthread callbacks.
 2017-04-04 14:28:07 -07:00
Joel Brobecker 61baf725ec update copyright year range in GDB files 
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.

gdb/ChangeLog:

        Update copyright year range in all GDB files.
 2017-01-01 10:52:34 +04:00
John Baldwin dbaed38534 Use a real vfork done event on FreeBSD when available. 
FreeBSD 12 recently added a new ptrace event to indicate when the vfork
parent resumes after the child process stops sharing the address space.
Use this event to report a proper TARGET_WAITKIND_VFORK_DONE rather than
faking a vfork done event after a delay.

gdb/ChangeLog:

	* fbsd-nat.c (fbsd_enable_proc_events): Enable "PTRACE_VFORK"
	events.
	(fbsd_pending_vfork_done): Only define if "PTRACE_VFORK" is not
	defined.
	(fbsd_add_vfork_done): Likewise.
	(fbsd_is_vfork_done_pending): Likewise.
	(fbsd_next_vfork_done): Likewise.
	(fbsd_resume): Only ignore pending vfork done events if
	"PTRACE_VFORK" is not defined.
	(fbsd_wait): Only look for pending vfork done events if
	"PTRACE_VFORK" is not defined.
	[PTRACE_VFORK]: Handle "PL_FLAG_VFORKED" and "PL_FLAG_VFORK_DONE"
	events.
	(fbsd_follow_fork): Only fake a vfork done event if "PTRACE_VFORK"
	is not defined.
 2016-07-20 11:02:25 -07:00
John Baldwin 5fa14c6b97 Enable ptrace events on new child processes. 
New child processes on FreeBSD do not inherit optional ptrace events
such as fork and LWP events from the parent process.  Instead,
explicitly enable events on new children when reporting a fork
event.

gdb/ChangeLog:

	* fbsd-nat.c (fbsd_wait): Use "fbsd_enable_proc_events" on
	new child processes.
 2016-07-20 11:01:45 -07:00
John Baldwin da95a26cc3 Consolidate code to enable optional FreeBSD native target event reporting. 
Add a new function to enable optional event reporting for FreeBSD native
targets.  Specifically, use this to enable fork and LWP events.
The bodies of fbsd_enable_follow_fork and fbsd_enable_lwp_events have been
subsumed into the new function.  In addition, use the PT_GET_EVENT_MASK
and PT_EVENT_SET_MASK requests added in FreeBSD 12 when present to enable
these events.

gdb/ChangeLog:

	* fbsd-nat.c (fbsd_enable_lwp_events): Remove function.
	(fbsd_enable_proc_events): New function.
	(fbsd_enable_follow_fork): Remove function.
	(fbsd_post_startup_inferior): Use "fbsd_enable_proc_events".
	(fbsd_post_attach): Likewise.
 2016-07-20 11:01:08 -07:00
John Baldwin ee950322ca Use 'ptid_t' instead of 'ptid' for fbsd_next_vfork_done's return type. 
'ptid' compiles in C++, but not C.

gdb/ChangeLog:
	* fbsd-nat.c (fbsd_is_vfork_done_pending): Fix return type.
 2016-07-06 05:57:41 -07:00
John Baldwin 2c5c2a3321 Fake VFORK_DONE events when following only the parent after a vfork. 
FreeBSD does not currently report a ptrace event for a parent process
after it resumes due to the child exiting the shared memory region after
a vfork.  Take the same approach used in linux-nat.c in this case of
sleeping for a while and then reporting a fake VFORK_DONE event.

gdb/ChangeLog:

	* fbsd-nat.c (struct fbsd_fork_child_info): Rename to ...
	(struct fbsd_fork_info): ... this.
	(struct fbsd_fork_info) <child>: Rename to ...
	(struct fbsd_fork_info) <ptid>: ... this.
	(fbsd_pending_children): Update type.
	(fbsd_remember_child): Update type and field name.
	(fbsd_is_child_pending): Likewise.
	(fbsd_pending_vfork_done): New variable.
	(fbsd_is_vfork_done_pending): New function.
	(fbsd_next_vfork_done): New function.
	(fbsd_resume): Don't resume processes with a pending vfork done
	event.
	(fbsd_wait): Report pending vfork done events.
	(fbsd_follow_fork): Delay and record a pending vfork done event
	for a vfork parent when detaching the child.
 2016-07-01 08:35:33 -07:00
John Baldwin 8607ea632c Move fbsd_resume and related functions below fork following helper code. 
gdb/ChangeLog:

	* fbsd-nat.c (super_resume): Move earlier next to "super_wait".
	(resume_one_thread_cb): Move below fork following helper code.
	(resume_all_threads_cb): Likewise.
	(fbsd_resume): Likewise.
 2016-07-01 08:33:19 -07:00
John Baldwin bb2a62e694 Honor detach-on-fork on FreeBSD. 
Only detach from the new child process in the follow fork callback
if detach_fork is true.

gdb/ChangeLog:

	* fbsd-nat.c (fbsd_follow_fork): Only detach child if
	"detach_fork" is true.
 2016-07-01 08:32:38 -07:00
John Baldwin e6cdd38e8f Add support for catching system calls to native FreeBSD targets. 
All platforms on FreeBSD use a shared system call table, so use a
single XML file to describe the system calls available on each FreeBSD
platform.

Recent versions of FreeBSD include the identifier of the current
system call when reporting a system call entry or exit event in the
ptrace_lwpinfo structure obtained via PT_LWPINFO in fbsd_wait.  As
such, FreeBSD native targets do not use the gdbarch method to fetch
the system call code.  In addition, FreeBSD register sets fetched via
ptrace do not include an equivalent of 'orig_rax' (on amd64 for
example), so the system call code cannot be extracted from the
available registers during a system call exit.  However, GDB assumes
that system call catch points are not supported if the gdbarch method
is not present.  As a workaround, FreeBSD ABIs install a dummy gdbarch
method that throws an internal_error if it is ever invoked.

gdb/ChangeLog:

	* configure.ac: Check for support for system call LWP fields on
	FreeBSD.
	* config.in, configure: Rebuild.
	* data-directory/Makefile.in (SYSCALLS_FILES): Add freebsd.xml.
	* fbsd-nat.c (fbsd_wait) [HAVE_STRUCT_PTRACE_LWPINFO_PL_SYSCALL_CODE]:
	Report system call events.
	[HAVE_STRUCT_PTRACE_LWPINFO_PL_SYSCALL_CODE]
	(fbsd_set_syscall_catchpoint): New function.
	(fbsd_nat_add_target) [HAVE_STRUCT_PTRACE_LWPINFO_PL_SYSCALL_CODE]:
	Set "to_set_syscall_catchpoint" to "fbsd_set_syscall_catchpoint".
	* fbsd-tdep.c: Include xml-syscall.h
	(fbsd_get_syscall_number): New function.
	(fbsd_init_abi): Set XML system call file name.
	Add "get_syscall_number" gdbarch method.
	* syscalls/freebsd.xml: New file.
 2016-06-24 10:46:03 -07:00
John Baldwin 7697fc9ec3 Fetch the ELF auxiliary vector from live processes on FreeBSD. 
Use the kern.proc.auxv.<pid> sysctl to fetch the ELF auxiliary vector for
a live process.

gdb/ChangeLog:

	* fbsd-nat.c [KERN_PROC_AUXV] New variable super_xfer_partial.
	(fbsd_xfer_partial): New function.
	(fbsd_nat_add_target) [KERN_PROC_AUXV] Set "to_xfer_partial" to
	"fbsd_xfer_partial".
 2016-06-24 10:33:04 -07:00
John Baldwin 21002a635b Handle void * conversions in FreeBSD/x86 native code to fix C++ build. 
gdb/ChangeLog:

	* amd64bsd-nat.c (amd64bsd_fetch_inferior_registers): Change xstateregs
	to void *.
	(amd64bsd_store_inferior_registers): Likewise.
	* fbsd-nat.c (resume_one_thread_cb): Explicitly cast data to ptid_t *.
	(resume_all_threads_cb): Likewise.
	* i386bsd-nat.c (i386bsd_supply_gregset): Cast gregs to char *.
	(i386bsd_collect_gregset): Likewise.
	(i386bsd_fetch_inferior_registers): Change xstateregs to void *.
	(i386bsd_store_inferior_registers): Likewise.
 2016-04-19 15:42:17 -07:00
John Baldwin b2bae2f79b Reword the string description of native FreeBSD ptids. 
The prior format led to confusing messages when threads were created
or added such as "[New process 14757, LWP 100537]".  The new format
reports this as "[New LWP 100434 of process 15652]".

gdb/ChangeLog:

	* fbsd-nat.c (fbsd_pid_to_str): Adjust string format.
 2016-01-22 08:47:15 -08:00
John Baldwin f2feec9809 Use a separate variable for the size passed to sysctl. 
This fixes a sign mismatch warning.

gdb/ChangeLog:

	* fbsd-nat.c (fbsd_pid_to_exec_file): Use new "buflen" instead of
	"len" with sysctl.
 2016-01-19 11:35:19 -08:00
John Baldwin 6e9567fe2a Add support for LWP-based threads on FreeBSD. 
Older versions of FreeBSD supported userland threading via a pure
user-space threading library (N threads scheduled on 1 process) and
a N:M model (N threads scheduled on M LWPs).  However, modern FreeBSD
versions only support a M:M threading model where each user thread is
backed by a dedicated LWP.  This thread target only supports this
threading model.  It also uses ptrace to query and alter LWP state
directly rather than using libthread_db to simplify the implementation.

FreeBSD recently gained support for reporting LWP events (birth and death
of LWPs).  GDB will use LWP events when present.  For older systems it
fetches the list of LWPs in the to_update_thread_list target op to update
the list of threads on each stop.

This target supports scheduler locking by using ptrace to suspend
individual LWPs as necessary before resuming a process.

gdb/ChangeLog:

	* configure.ac: Check for support for LWP names on FreeBSD.
	* fbsd-nat.c [PT_LWPINFO] New variable debug_fbsd_lwp.
	[TDP_RFPPWAIT || HAVE_STRUCT_PTRACE_LWPINFO_PL_TDNAME]
	(fbsd_fetch_kinfo_proc): Move function earlier.
	[PT_LWPINFO] (fbsd_thread_alive): New function.
	[PT_LWPINFO] (fbsd_pid_to_str): New function.
	[HAVE_STRUCT_PTRACE_LWPINFO_PL_TDNAME] (fbsd_thread_name): New function.
	[PT_LWP_EVENTS] (fbsd_enable_lwp_events): New function.
	[PT_LWPINFO] (fbsd_add_threads): New function.
	[PT_LWPINFO] (fbsd_update_thread_list): New function.
	[PT_LWPINFO] New variable super_resume.
	[PT_LWPINFO] (resume_one_thread_cb): New function.
	[PT_LWPINFO] (resume_all_threads_cb): New function.
	[PT_LWPINFO] (fbsd_resume): New function.
	(fbsd_remember_child): Save full ptid instead of plain pid.
	(fbsd_is_child_pending): Return ptid of saved child process.
	(fbsd_wait): Include lwp in returned ptid and switch to LWP ptid on
	first stop.
	[PT_LWP_EVENTS] Handle LWP events.
	[TDP_RFPPWAIT] Include LWP in child ptid.
	(fbsd_post_startup_inferior) [PT_LWP_EVENTS]: Enable LWP events.
	(fbsd_post_attach) [PT_LWP_EVENTS]: Enable LWP events.
	Add threads for existing processes.
	(fbsd_nat_add_target) [PT_LWPINFO]: Set "to_thread_alive" to
	"fbsd_thread_alive".
	Set "to_pid_to_str" to "fbsd_pid_to_str".
	[HAVE_STRUCT_PTRACE_LWPINFO_PL_TDNAME]: Set "to_thread_name" to
	"fbsd_thread_name".
	[PT_LWPINFO]: Set "to_update_thread_list" to "fbsd_update_thread_list".
	Set "to_has_thread_control" to "tc_schedlock".
	Set "to_resume" to "fbsd_resume".
	(_initialize_fbsd_nat): New function.
	* configure: Regenerate.
	* config.in: Regenerate.

gdb/doc/ChangeLog:

	* gdb.texinfo (Debugging Output): Document "set/show debug fbsd-lwp".
 2016-01-19 08:19:00 -08:00
Joel Brobecker 618f726fcb GDB copyright headers update after running GDB's copyright.py script. 
gdb/ChangeLog:

        Update year range in copyright notice of all files.
 2016-01-01 08:43:22 +04:00