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-rw-r--r--bsd-user/main.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/bsd-user/main.c b/bsd-user/main.c
index babc3b009b..cd8b2a670f 100644
--- a/bsd-user/main.c
+++ b/bsd-user/main.c
@@ -49,7 +49,7 @@
 #include "host-os.h"
 #include "target_arch_cpu.h"
 
-int singlestep;
+static bool opt_one_insn_per_tb;
 uintptr_t guest_base;
 bool have_guest_base;
 /*
@@ -162,7 +162,8 @@ static void usage(void)
            "-d item1[,...]    enable logging of specified items\n"
            "                  (use '-d help' for a list of log items)\n"
            "-D logfile        write logs to 'logfile' (default stderr)\n"
-           "-singlestep       always run in singlestep mode\n"
+           "-one-insn-per-tb  run with one guest instruction per emulated TB\n"
+           "-singlestep       deprecated synonym for -one-insn-per-tb\n"
            "-strace           log system calls\n"
            "-trace            [[enable=]<pattern>][,events=<file>][,file=<file>]\n"
            "                  specify tracing options\n"
@@ -385,8 +386,8 @@ int main(int argc, char **argv)
             (void) envlist_unsetenv(envlist, "LD_PRELOAD");
         } else if (!strcmp(r, "seed")) {
             seed_optarg = optarg;
-        } else if (!strcmp(r, "singlestep")) {
-            singlestep = 1;
+        } else if (!strcmp(r, "singlestep") || !strcmp(r, "one-insn-per-tb")) {
+            opt_one_insn_per_tb = true;
         } else if (!strcmp(r, "strace")) {
             do_strace = 1;
         } else if (!strcmp(r, "trace")) {
@@ -444,9 +445,12 @@ int main(int argc, char **argv)
 
     /* init tcg before creating CPUs and to get qemu_host_page_size */
     {
-        AccelClass *ac = ACCEL_GET_CLASS(current_accel());
+        AccelState *accel = current_accel();
+        AccelClass *ac = ACCEL_GET_CLASS(accel);
 
         accel_init_interfaces(ac);
+        object_property_set_bool(OBJECT(accel), "one-insn-per-tb",
+                                 opt_one_insn_per_tb, &error_abort);
         ac->init_machine(NULL);
     }
     cpu = cpu_create(cpu_type);