semihosting: Cleanup chardev init

Rename qemu_semihosting_connect_chardevs to
qemu_semihosting_chardev_init; pass the result
directly to qemu_semihosting_console_init.

Store the chardev in SemihostingConsole instead
of SemihostingConfig, which lets us drop
semihosting_get_chardev.

Reviewed-by: Luc Michel <lmichel@kalray.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

2 files changed, 22 insertions, 26 deletions

diff --git a/semihosting/config.c b/semihosting/config.c
index 3afacf5..e171d4d 100644
--- a/semihosting/config.c
+++ b/semihosting/config.c
@@ -51,7 +51,6 @@ QemuOptsList qemu_semihosting_config_opts = {
 typedef struct SemihostingConfig {
     bool enabled;
     SemihostingTarget target;
-    Chardev *chardev;
     char **argv;
     int argc;
     const char *cmdline; /* concatenated argv */
@@ -122,11 +121,6 @@ void semihosting_arg_fallback(const char *file, const char *cmd)
     }
 }
 
-Chardev *semihosting_get_chardev(void)
-{
-    return semihosting.chardev;
-}
-
 void qemu_semihosting_enable(void)
 {
     semihosting.enabled = true;
@@ -172,16 +166,19 @@ int qemu_semihosting_config_options(const char *optarg)
     return 0;
 }
 
-void qemu_semihosting_connect_chardevs(void)
+/* We had to defer this until chardevs were created */
+void qemu_semihosting_chardev_init(void)
 {
-    /* We had to defer this until chardevs were created */
+    Chardev *chr = NULL;
+
     if (semihost_chardev) {
-        Chardev *chr = qemu_chr_find(semihost_chardev);
+        chr = qemu_chr_find(semihost_chardev);
         if (chr == NULL) {
             error_report("semihosting chardev '%s' not found",
                          semihost_chardev);
             exit(1);
         }
-        semihosting.chardev = chr;
     }
+
+    qemu_semihosting_console_init(chr);
 }
diff --git a/semihosting/console.c b/semihosting/console.c
index e5ac3f2..1d16a29 100644
--- a/semihosting/console.c
+++ b/semihosting/console.c
@@ -27,11 +27,21 @@
 #include "qapi/error.h"
 #include "qemu/fifo8.h"
 
+/* Access to this structure is protected by the BQL */
+typedef struct SemihostingConsole {
+    CharBackend         backend;
+    Chardev             *chr;
+    GSList              *sleeping_cpus;
+    bool                got;
+    Fifo8               fifo;
+} SemihostingConsole;
+
+static SemihostingConsole console;
+
 int qemu_semihosting_log_out(const char *s, int len)
 {
-    Chardev *chardev = semihosting_get_chardev();
-    if (chardev) {
-        return qemu_chr_write_all(chardev, (uint8_t *) s, len);
+    if (console.chr) {
+        return qemu_chr_write_all(console.chr, (uint8_t *) s, len);
     } else {
         return write(STDERR_FILENO, s, len);
     }
@@ -106,16 +116,6 @@ void qemu_semihosting_console_outc(CPUArchState *env, target_ulong addr)
 
 #define FIFO_SIZE   1024
 
-/* Access to this structure is protected by the BQL */
-typedef struct SemihostingConsole {
-    CharBackend         backend;
-    GSList              *sleeping_cpus;
-    bool                got;
-    Fifo8               fifo;
-} SemihostingConsole;
-
-static SemihostingConsole console;
-
 static int console_can_read(void *opaque)
 {
     SemihostingConsole *c = opaque;
@@ -169,10 +169,9 @@ int qemu_semihosting_console_read(CPUState *cs, void *buf, int len)
     return ret;
 }
 
-void qemu_semihosting_console_init(void)
+void qemu_semihosting_console_init(Chardev *chr)
 {
-    Chardev *chr = semihosting_get_chardev();
-
+    console.chr = chr;
     if  (chr) {
         fifo8_create(&console.fifo, FIFO_SIZE);
         qemu_chr_fe_init(&console.backend, chr, &error_abort);