target-arm: Handle UNDEF cases for Neon invalid modified-immediates

[qemu.git] / cmd.c

diff --git a/cmd.c b/cmd.c
index f3f4385643e46ee679b61cb28c128ca38b8e79b8..db2c9c4c5ee066ca43a9210b6fc6d25d80c40033 100644 (file)
--- a/cmd.c
+++ b/cmd.c
@@ -20,13 +20,14 @@
 #include <string.h>
 #include <ctype.h>
 #include <errno.h>
+#include <sys/time.h>
+#include <getopt.h>
 
 #include "cmd.h"
+#include "qemu-aio.h"
 
 #define _(x)   x       /* not gettext support yet */
 
-extern int optind;
-
 /* from libxcmd/command.c */
 
 cmdinfo_t      *cmdtab;
@@ -149,10 +150,20 @@ add_args_command(
        args_func = af;
 }
 
+static void prep_fetchline(void *opaque)
+{
+    int *fetchable = opaque;
+
+    qemu_aio_set_fd_handler(STDIN_FILENO, NULL, NULL, NULL, NULL, NULL);
+    *fetchable= 1;
+}
+
+static char *get_prompt(void);
+
 void
 command_loop(void)
 {
-       int             c, i, j = 0, done = 0;
+       int             c, i, j = 0, done = 0, fetchable = 0, prompted = 0;
        char            *input;
        char            **v;
        const cmdinfo_t *ct;
@@ -186,7 +197,21 @@ command_loop(void)
                free(cmdline);
                return;
        }
+
        while (!done) {
+        if (!prompted) {
+            printf("%s", get_prompt());
+            fflush(stdout);
+            qemu_aio_set_fd_handler(STDIN_FILENO, prep_fetchline, NULL, NULL,
+                                    NULL, &fetchable);
+            prompted = 1;
+        }
+
+        qemu_aio_wait();
+
+        if (!fetchable) {
+            continue;
+        }
                if ((input = fetchline()) == NULL)
                        break;
                v = breakline(input, &c);
@@ -199,7 +224,11 @@ command_loop(void)
                                        v[0]);
                }
                doneline(input, v);
+
+        prompted = 0;
+        fetchable = 0;
        }
+    qemu_aio_set_fd_handler(STDIN_FILENO, NULL, NULL, NULL, NULL, NULL);
 }
 
 /* from libxcmd/input.c */
@@ -270,8 +299,6 @@ fetchline(void)
 
        if (!line)
                return NULL;
-       printf("%s", get_prompt());
-       fflush(stdout);
        if (!fgets(line, MAXREADLINESZ, stdin)) {
                free(line);
                return NULL;
@@ -283,6 +310,27 @@ fetchline(void)
 }
 #endif
 
+static char *qemu_strsep(char **input, const char *delim)
+{
+    char *result = *input;
+    if (result != NULL) {
+        char *p;
+
+        for (p = result; *p != '\0'; p++) {
+            if (strchr(delim, *p)) {
+                break;
+            }
+        }
+        if (*p == '\0') {
+            *input = NULL;
+        } else {
+            *p = '\0';
+            *input = p + 1;
+        }
+    }
+    return result;
+}
+
 char **
 breakline(
        char    *input,
@@ -292,7 +340,7 @@ breakline(
        char    *p;
        char    **rval = calloc(sizeof(char *), 1);
 
-       while (rval && (p = strsep(&input, " ")) != NULL) {
+       while (rval && (p = qemu_strsep(&input, " ")) != NULL) {
                if (!*p)
                        continue;
                c++;