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Merge remote-tracking branch 'remotes/elmarco/tags/char-pull-request' into staging

# gpg: Signature made Thu 08 Jun 2017 15:12:11 BST
# gpg:                using RSA key 0xDAE8E10975969CE5
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>"
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276  F62D DAE8 E109 7596 9CE5

* remotes/elmarco/tags/char-pull-request:
  test-char: start a /char/serial test
  chardev: don't use alias names in parse_compat()
  char: fix alias devices regression

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

chardev/char.c

@@ -450,12 +450,12 @@ QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
     }
     if (strstart(filename, "/dev/parport", NULL) ||
         strstart(filename, "/dev/ppi", NULL)) {
-        qemu_opt_set(opts, "backend", "parport", &error_abort);
+        qemu_opt_set(opts, "backend", "parallel", &error_abort);
         qemu_opt_set(opts, "path", filename, &error_abort);
         return opts;
     }
     if (strstart(filename, "/dev/", NULL)) {
-        qemu_opt_set(opts, "backend", "tty", &error_abort);
+        qemu_opt_set(opts, "backend", "serial", &error_abort);
         qemu_opt_set(opts, "path", filename, &error_abort);
         return opts;
     }

include/chardev/char-parallel.h

@@ -26,11 +26,6 @@
 
 #include "chardev/char.h"
 
-#if defined(__linux__) || defined(__FreeBSD__) ||               \
-    defined(__FreeBSD_kernel__) || defined(__DragonFly__)
-#define HAVE_CHARDEV_PARPORT 1
-#endif
-
 #define CHR_IOCTL_PP_READ_DATA        3
 #define CHR_IOCTL_PP_WRITE_DATA       4
 #define CHR_IOCTL_PP_READ_CONTROL     5

include/chardev/char-serial.h

@@ -26,14 +26,6 @@
 
 #include "chardev/char.h"
 
-#ifdef _WIN32
-#define HAVE_CHARDEV_SERIAL 1
-#elif defined(__linux__) || defined(__sun__) || defined(__FreeBSD__)    \
-    || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
-    || defined(__GLIBC__)
-#define HAVE_CHARDEV_SERIAL 1
-#endif
-
 #define CHR_IOCTL_SERIAL_SET_PARAMS   1
 typedef struct {
     int speed;

include/qemu/osdep.h

@@ -284,6 +284,19 @@ void qemu_anon_ram_free(void *ptr, size_t size);
 
 #endif
 
+#ifdef _WIN32
+#define HAVE_CHARDEV_SERIAL 1
+#elif defined(__linux__) || defined(__sun__) || defined(__FreeBSD__)    \
+    || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
+    || defined(__GLIBC__)
+#define HAVE_CHARDEV_SERIAL 1
+#endif
+
+#if defined(__linux__) || defined(__FreeBSD__) ||               \
+    defined(__FreeBSD_kernel__) || defined(__DragonFly__)
+#define HAVE_CHARDEV_PARPORT 1
+#endif
+
 #if defined(CONFIG_LINUX)
 #ifndef BUS_MCEERR_AR
 #define BUS_MCEERR_AR 4

tests/test-char.c

@@ -450,6 +450,32 @@ static void char_udp_test(void)
     g_free(tmp);
 }
 
+#ifdef HAVE_CHARDEV_SERIAL
+static void char_serial_test(void)
+{
+    QemuOpts *opts;
+    Chardev *chr;
+
+    opts = qemu_opts_create(qemu_find_opts("chardev"), "serial-id",
+                            1, &error_abort);
+    qemu_opt_set(opts, "backend", "serial", &error_abort);
+    qemu_opt_set(opts, "path", "/dev/null", &error_abort);
+
+    chr = qemu_chr_new_from_opts(opts, NULL);
+    g_assert_nonnull(chr);
+    /* TODO: add more tests with a pty */
+    object_unparent(OBJECT(chr));
+
+    /* test tty alias */
+    qemu_opt_set(opts, "backend", "tty", &error_abort);
+    chr = qemu_chr_new_from_opts(opts, NULL);
+    g_assert_nonnull(chr);
+    object_unparent(OBJECT(chr));
+
+    qemu_opts_del(opts);
+}
+#endif
+
 static void char_file_test(void)
 {
     char *tmp_path = g_dir_make_tmp("qemu-test-char.XXXXXX", NULL);
@@ -597,6 +623,9 @@ int main(int argc, char **argv)
     g_test_add_func("/char/file", char_file_test);
     g_test_add_func("/char/socket", char_socket_test);
     g_test_add_func("/char/udp", char_udp_test);
+#ifdef HAVE_CHARDEV_SERIAL
+    g_test_add_func("/char/serial", char_serial_test);
+#endif
 
     return g_test_run();
 }