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.

1 files changed, 20 insertions, 20 deletions

diff --git a/gdb/ravenscar-thread.c b/gdb/ravenscar-thread.c
index e850ef7507c..03cbe3d9e7a 100644
--- a/gdb/ravenscar-thread.c
+++ b/gdb/ravenscar-thread.c
@@ -95,15 +95,15 @@ struct ravenscar_thread_target final : public target_ops
 
   void prepare_to_store (struct regcache *) override;
 
-  int stopped_by_sw_breakpoint () override;
+  bool stopped_by_sw_breakpoint () override;
 
-  int stopped_by_hw_breakpoint () override;
+  bool stopped_by_hw_breakpoint () override;
 
-  int stopped_by_watchpoint () override;
+  bool stopped_by_watchpoint () override;
 
-  int stopped_data_address (CORE_ADDR *) override;
+  bool stopped_data_address (CORE_ADDR *) override;
 
-  int thread_alive (ptid_t ptid) override;
+  bool thread_alive (ptid_t ptid) override;
 
   int core_of_thread (ptid_t ptid) override;
 
@@ -117,11 +117,11 @@ struct ravenscar_thread_target final : public target_ops
 
   void mourn_inferior () override;
 
-  int has_all_memory ()  override { return default_child_has_all_memory (); }
-  int has_memory ()  override { return default_child_has_memory (); }
-  int has_stack ()  override { return default_child_has_stack (); }
-  int has_registers ()  override { return default_child_has_registers (); }
-  int has_execution (ptid_t ptid) override
+  bool has_all_memory ()  override { return default_child_has_all_memory (); }
+  bool has_memory ()  override { return default_child_has_memory (); }
+  bool has_stack ()  override { return default_child_has_stack (); }
+  bool has_registers ()  override { return default_child_has_registers (); }
+  bool has_execution (ptid_t ptid) override
   { return default_child_has_execution (ptid); }
 };
 
@@ -396,11 +396,11 @@ ravenscar_thread_target::extra_thread_info (thread_info *tp)
   return "Ravenscar task";
 }
 
-int
+bool
 ravenscar_thread_target::thread_alive (ptid_t ptid)
 {
   /* Ravenscar tasks are non-terminating.  */
-  return 1;
+  return true;
 }
 
 const char *
@@ -475,12 +475,12 @@ ravenscar_thread_target::prepare_to_store (struct regcache *regcache)
 
 /* Implement the to_stopped_by_sw_breakpoint target_ops "method".  */
 
-int
+bool
 ravenscar_thread_target::stopped_by_sw_breakpoint ()
 {
   ptid_t saved_ptid = inferior_ptid;
   struct target_ops *beneath = find_target_beneath (this);
-  int result;
+  bool result;
 
   inferior_ptid = get_base_thread_from_ravenscar_task (saved_ptid);
   result = beneath->stopped_by_sw_breakpoint ();
@@ -490,12 +490,12 @@ ravenscar_thread_target::stopped_by_sw_breakpoint ()
 
 /* Implement the to_stopped_by_hw_breakpoint target_ops "method".  */
 
-int
+bool
 ravenscar_thread_target::stopped_by_hw_breakpoint ()
 {
   ptid_t saved_ptid = inferior_ptid;
   struct target_ops *beneath = find_target_beneath (this);
-  int result;
+  bool result;
 
   inferior_ptid = get_base_thread_from_ravenscar_task (saved_ptid);
   result = beneath->stopped_by_hw_breakpoint ();
@@ -505,12 +505,12 @@ ravenscar_thread_target::stopped_by_hw_breakpoint ()
 
 /* Implement the to_stopped_by_watchpoint target_ops "method".  */
 
-int
+bool
 ravenscar_thread_target::stopped_by_watchpoint ()
 {
   ptid_t saved_ptid = inferior_ptid;
   struct target_ops *beneath = find_target_beneath (this);
-  int result;
+  bool result;
 
   inferior_ptid = get_base_thread_from_ravenscar_task (saved_ptid);
   result = beneath->stopped_by_watchpoint ();
@@ -520,12 +520,12 @@ ravenscar_thread_target::stopped_by_watchpoint ()
 
 /* Implement the to_stopped_data_address target_ops "method".  */
 
-int
+bool
 ravenscar_thread_target::stopped_data_address (CORE_ADDR *addr_p)
 {
   ptid_t saved_ptid = inferior_ptid;
   struct target_ops *beneath = find_target_beneath (this);
-  int result;
+  bool result;
 
   inferior_ptid = get_base_thread_from_ravenscar_task (saved_ptid);
   result = beneath->stopped_data_address (addr_p);