monitor: expose monitor_puts to rest of code

This helps us construct strings elsewhere before echoing to the
monitor. It avoids having to jump through hoops like:

  monitor_printf(mon, "%s", s->str);

It will be useful in following patches but for now convert all
existing plain "%s" printfs to use the _puts api.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220929114231.583801-33-alex.bennee@linaro.org>

block/monitor/block-hmp-cmds.c

@@ -638,16 +638,16 @@ static void print_block_info(Monitor *mon, BlockInfo *info,
     assert(!info || !info->has_inserted || info->inserted == inserted);
 
     if (info && *info->device) {
-        monitor_printf(mon, "%s", info->device);
+        monitor_puts(mon, info->device);
         if (inserted && inserted->has_node_name) {
             monitor_printf(mon, " (%s)", inserted->node_name);
         }
     } else {
         assert(info || inserted);
-        monitor_printf(mon, "%s",
-                       inserted && inserted->has_node_name ? inserted->node_name
-                       : info && info->has_qdev ? info->qdev
-                       : "<anonymous>");
+        monitor_puts(mon,
+                     inserted && inserted->has_node_name ? inserted->node_name
+                     : info && info->has_qdev ? info->qdev
+                     : "<anonymous>");
     }
 
     if (inserted) {

docs/devel/writing-monitor-commands.rst

@@ -716,7 +716,7 @@ message. Here's the implementation of the "info roms" HMP command::
      if (hmp_handle_error(mon, err)) {
          return;
      }
-     monitor_printf(mon, "%s", info->human_readable_text);
+     monitor_puts(mon, info->human_readable_text);
  }
 
 Also, you have to add the function's prototype to the hmp.h file.

hw/misc/mos6522.c

@@ -595,7 +595,7 @@ void hmp_info_via(Monitor *mon, const QDict *qdict)
     if (hmp_handle_error(mon, err)) {
         return;
     }
-    monitor_printf(mon, "%s", info->human_readable_text);
+    monitor_puts(mon, info->human_readable_text);
 }
 
 static const MemoryRegionOps mos6522_ops = {

include/monitor/monitor.h

@@ -31,6 +31,7 @@ void monitor_resume(Monitor *mon);
 int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp);
 int monitor_fd_param(Monitor *mon, const char *fdname, Error **errp);
 
+int monitor_puts(Monitor *mon, const char *str);
 int monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
     G_GNUC_PRINTF(2, 0);
 int monitor_printf(Monitor *mon, const char *fmt, ...) G_GNUC_PRINTF(2, 3);

monitor/hmp-cmds.c

@@ -730,7 +730,7 @@ static void hmp_info_pci_device(Monitor *mon, const PciDeviceInfo *dev)
     monitor_printf(mon, "    ");
 
     if (dev->class_info->has_desc) {
-        monitor_printf(mon, "%s", dev->class_info->desc);
+        monitor_puts(mon, dev->class_info->desc);
     } else {
         monitor_printf(mon, "Class %04" PRId64, dev->class_info->q_class);
     }
@@ -2258,12 +2258,12 @@ static void print_stats_schema_value(Monitor *mon, StatsSchemaValue *value)
     if (unit && value->base == 10 &&
         value->exponent >= -18 && value->exponent <= 18 &&
         value->exponent % 3 == 0) {
-        monitor_printf(mon, "%s", si_prefix(value->exponent));
+        monitor_puts(mon, si_prefix(value->exponent));
     } else if (unit && value->base == 2 &&
                value->exponent >= 0 && value->exponent <= 60 &&
                value->exponent % 10 == 0) {
 
-        monitor_printf(mon, "%s", iec_binary_prefix(value->exponent));
+        monitor_puts(mon, iec_binary_prefix(value->exponent));
     } else if (value->exponent) {
         /* Use exponential notation and write the unit's English name */
         monitor_printf(mon, "* %d^%d%s",
@@ -2273,7 +2273,7 @@ static void print_stats_schema_value(Monitor *mon, StatsSchemaValue *value)
     }
 
     if (value->has_unit) {
-        monitor_printf(mon, "%s", unit ? unit : StatsUnit_str(value->unit));
+        monitor_puts(mon, unit ? unit : StatsUnit_str(value->unit));
     }
 
     /* Print bucket size for linear histograms */

monitor/hmp.c

@@ -1094,7 +1094,7 @@ static void hmp_info_human_readable_text(Monitor *mon,
         return;
     }
 
-    monitor_printf(mon, "%s", info->human_readable_text);
+    monitor_puts(mon, info->human_readable_text);
 }
 
 static void handle_hmp_command_exec(Monitor *mon,

monitor/monitor-internal.h

@@ -174,7 +174,6 @@ extern int mon_refcount;
 
 extern HMPCommand hmp_cmds[];
 
-int monitor_puts(Monitor *mon, const char *str);
 void monitor_data_init(Monitor *mon, bool is_qmp, bool skip_flush,
                        bool use_io_thread);
 void monitor_data_destroy(Monitor *mon);

target/i386/helper.c

@@ -415,7 +415,7 @@ static void do_inject_x86_mce(CPUState *cs, run_on_cpu_data data)
         if (need_reset) {
             emit_guest_memory_failure(MEMORY_FAILURE_ACTION_RESET, ar,
                                       recursive);
-            monitor_printf(params->mon, "%s", msg);
+            monitor_puts(params->mon, msg);
             qemu_log_mask(CPU_LOG_RESET, "%s\n", msg);
             qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
             return;