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, 15 insertions, 15 deletions

diff --git a/gdb/linux-nat.c b/gdb/linux-nat.c
index bfc2e46..701a7db 100644
--- a/gdb/linux-nat.c
+++ b/gdb/linux-nat.c
@@ -2474,7 +2474,7 @@ check_stopped_by_watchpoint (struct lwp_info *lp)
 
 /* Returns true if the LWP had stopped for a watchpoint.  */
 
-int
+bool
 linux_nat_target::stopped_by_watchpoint ()
 {
   struct lwp_info *lp = find_lwp_pid (inferior_ptid);
@@ -2484,7 +2484,7 @@ linux_nat_target::stopped_by_watchpoint ()
   return lp->stop_reason == TARGET_STOPPED_BY_WATCHPOINT;
 }
 
-int
+bool
 linux_nat_target::stopped_data_address (CORE_ADDR *addr_p)
 {
   struct lwp_info *lp = find_lwp_pid (inferior_ptid);
@@ -2835,7 +2835,7 @@ save_stop_reason (struct lwp_info *lp)
 
 /* Returns true if the LWP had stopped for a software breakpoint.  */
 
-int
+bool
 linux_nat_target::stopped_by_sw_breakpoint ()
 {
   struct lwp_info *lp = find_lwp_pid (inferior_ptid);
@@ -2847,7 +2847,7 @@ linux_nat_target::stopped_by_sw_breakpoint ()
 
 /* Implement the supports_stopped_by_sw_breakpoint method.  */
 
-int
+bool
 linux_nat_target::supports_stopped_by_sw_breakpoint ()
 {
   return USE_SIGTRAP_SIGINFO;
@@ -2856,7 +2856,7 @@ linux_nat_target::supports_stopped_by_sw_breakpoint ()
 /* Returns true if the LWP had stopped for a hardware
    breakpoint/watchpoint.  */
 
-int
+bool
 linux_nat_target::stopped_by_hw_breakpoint ()
 {
   struct lwp_info *lp = find_lwp_pid (inferior_ptid);
@@ -2868,7 +2868,7 @@ linux_nat_target::stopped_by_hw_breakpoint ()
 
 /* Implement the supports_stopped_by_hw_breakpoint method.  */
 
-int
+bool
 linux_nat_target::supports_stopped_by_hw_breakpoint ()
 {
   return USE_SIGTRAP_SIGINFO;
@@ -3940,7 +3940,7 @@ linux_nat_target::xfer_partial (enum target_object object,
 					  offset, len, xfered_len);
 }
 
-int
+bool
 linux_nat_target::thread_alive (ptid_t ptid)
 {
   /* As long as a PTID is in lwp list, consider it alive.  */
@@ -4322,7 +4322,7 @@ linux_nat_target::static_tracepoint_markers_by_strid (const char *strid)
 
 /* target_is_async_p implementation.  */
 
-int
+bool
 linux_nat_target::is_async_p ()
 {
   return linux_is_async_p ();
@@ -4330,7 +4330,7 @@ linux_nat_target::is_async_p ()
 
 /* target_can_async_p implementation.  */
 
-int
+bool
 linux_nat_target::can_async_p ()
 {
   /* We're always async, unless the user explicitly prevented it with the
@@ -4338,7 +4338,7 @@ linux_nat_target::can_async_p ()
   return target_async_permitted;
 }
 
-int
+bool
 linux_nat_target::supports_non_stop ()
 {
   return 1;
@@ -4346,7 +4346,7 @@ linux_nat_target::supports_non_stop ()
 
 /* to_always_non_stop_p implementation.  */
 
-int
+bool
 linux_nat_target::always_non_stop_p ()
 {
   return 1;
@@ -4357,13 +4357,13 @@ linux_nat_target::always_non_stop_p ()
 
 int linux_multi_process = 1;
 
-int
+bool
 linux_nat_target::supports_multi_process ()
 {
   return linux_multi_process;
 }
 
-int
+bool
 linux_nat_target::supports_disable_randomization ()
 {
 #ifdef HAVE_PERSONALITY
@@ -4574,13 +4574,13 @@ linux_nat_target::core_of_thread (ptid_t ptid)
 
 /* Implementation of to_filesystem_is_local.  */
 
-int
+bool
 linux_nat_target::filesystem_is_local ()
 {
   struct inferior *inf = current_inferior ();
 
   if (inf->fake_pid_p || inf->pid == 0)
-    return 1;
+    return true;
 
   return linux_ns_same (inf->pid, LINUX_NS_MNT);
 }