Commit dfe87815ba for qemu.org

commit dfe87815ba450228811f3abc633d7dc02757922e
Author: Cédric Le Goater <clg@redhat.com>
Date:   Mon Dec 15 11:19:36 2025 +0100

    monitor: Fix const qualifier build errors with recent glibc

    A recent change in glibc 2.42.9000 [1] changes the return type of
    strchr() and other string functions to be 'const char *' when the
    input is a 'const char *'. This breaks the build in :

    ../monitor/hmp.c:589:7: error: assignment discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers]
      589 |     p = strchr(type, ':');
          |       ^

    Fix this by changing the type of the variables that store the result
    of these functions to 'const char *'.

    [1] https://sourceware.org/git/?p=glibc.git;a=commit;h=cd748a63ab1a7ae846175c532a3daab341c62690

    Reviewed-by: Thomas Huth <thuth@redhat.com>
    Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
    Link: https://lore.kernel.org/qemu-devel/20251215101937.281722-4-clg@redhat.com
    Signed-off-by: Cédric Le Goater <clg@redhat.com>

diff --git a/monitor/hmp.c b/monitor/hmp.c
index 34e2b8f748..a3ee02e52c 100644
--- a/monitor/hmp.c
+++ b/monitor/hmp.c
@@ -577,10 +577,11 @@ static const char *get_command_name(const char *cmdline,
  * Read key of 'type' into 'key' and return the current
  * 'type' pointer.
  */
-static char *key_get_info(const char *type, char **key)
+static const char *key_get_info(const char *type, char **key)
 {
     size_t len;
-    char *p, *str;
+    const char *p;
+    char *str;

     if (*type == ',') {
         type++;