[Qemu-devel] [PATCH 1/4] linux-user: Exit 0 when -h is used

[<meadori@codesourcery.com>]

From: Meador Inge <meadori@codesourcery.com>

Signed-off-by: Meador Inge <meadori@codesourcery.com>
---
 linux-user/main.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/linux-user/main.c b/linux-user/main.c
index c855bcc..c6ab557 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -65,7 +65,7 @@ unsigned long reserved_va;
 #endif
 #endif
 
-static void usage(void);
+static void usage(int exitcode);
 
 static const char *interp_prefix = CONFIG_QEMU_INTERP_PREFIX;
 const char *qemu_uname_release;
@@ -3473,7 +3473,7 @@ CPUArchState *cpu_copy(CPUArchState *env)
 
 static void handle_arg_help(const char *arg)
 {
-    usage();
+    usage(0);
 }
 
 static void handle_arg_log(const char *arg)
@@ -3499,7 +3499,7 @@ static void handle_arg_set_env(const char *arg)
     r = p = strdup(arg);
     while ((token = strsep(&p, ",")) != NULL) {
         if (envlist_setenv(envlist, token) != 0) {
-            usage();
+            usage(1);
         }
     }
     free(r);
@@ -3511,7 +3511,7 @@ static void handle_arg_unset_env(const char *arg)
     r = p = strdup(arg);
     while ((token = strsep(&p, ",")) != NULL) {
         if (envlist_unsetenv(envlist, token) != 0) {
-            usage();
+            usage(1);
         }
     }
     free(r);
@@ -3527,7 +3527,7 @@ static void handle_arg_stack_size(const char *arg)
     char *p;
     guest_stack_size = strtoul(arg, &p, 0);
     if (guest_stack_size == 0) {
-        usage();
+        usage(1);
     }
 
     if (*p == 'M') {
@@ -3698,7 +3698,7 @@ static const struct qemu_argument arg_table[] = {
     {NULL, NULL, false, NULL, NULL, NULL}
 };
 
-static void usage(void)
+static void usage(int exitcode)
 {
     const struct qemu_argument *arginfo;
     int maxarglen;
@@ -3765,7 +3765,7 @@ static void usage(void)
            "Note that if you provide several changes to a single variable\n"
            "the last change will stay in effect.\n");
 
-    exit(1);
+    exit(exitcode);
 }
 
 static int parse_args(int argc, char **argv)
@@ -3804,7 +3804,7 @@ static int parse_args(int argc, char **argv)
             if (!strcmp(r, arginfo->argv)) {
                 if (arginfo->has_arg) {
                     if (optind >= argc) {
-                        usage();
+                        usage(1);
                     }
                     arginfo->handle_opt(argv[optind]);
                     optind++;
@@ -3817,12 +3817,12 @@ static int parse_args(int argc, char **argv)
 
         /* no option matched the current argv */
         if (arginfo->handle_opt == NULL) {
-            usage();
+            usage(1);
         }
     }
 
     if (optind >= argc) {
-        usage();
+        usage(1);
     }
 
     filename = argv[optind];
-- 
1.8.1.1