Add new command line option -singlestep for tcg single stepping.

[mirror_qemu.git] / linux-user / main.c

diff --git a/linux-user/main.c b/linux-user/main.c
index feb30361705355e6356ea41a19ec84c3de1be681..3b9dfc76732e0aaa5f33539ee40b05078b554a7c 100644 (file)
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -39,6 +39,8 @@
 
 char *exec_path;
 
+int singlestep;
+
 static const char *interp_prefix = CONFIG_QEMU_PREFIX;
 const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
 
@@ -2217,6 +2219,7 @@ static void usage(void)
            "Debug options:\n"
            "-d options   activate log (logfile=%s)\n"
            "-p pagesize  set the host page size to 'pagesize'\n"
+           "-singlestep  always run in singlestep mode\n"
            "-strace      log system calls\n"
            "\n"
            "Environment variables:\n"
@@ -2359,6 +2362,8 @@ int main(int argc, char **argv, char **envp)
             }
         } else if (!strcmp(r, "drop-ld-preload")) {
             (void) envlist_unsetenv(envlist, "LD_PRELOAD");
+        } else if (!strcmp(r, "singlestep")) {
+            singlestep = 1;
         } else if (!strcmp(r, "strace")) {
             do_strace = 1;
         } else