semihosting: Clean up global variable shadowing

Fix:

  semihosting/config.c:134:49: error: declaration shadows a variable in the global scope [-Werror,-Wshadow]
  int qemu_semihosting_config_options(const char *optarg)
                                                  ^
  /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/getopt.h:77:14: note: previous declaration is here
  extern char *optarg;                    /* getopt(3) external variables */
               ^

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231004120019.93101-10-philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/semihosting/config.c b/semihosting/config.c
index 8ca5697..e826457 100644
--- a/semihosting/config.c
+++ b/semihosting/config.c
@@ -131,10 +131,10 @@ void qemu_semihosting_enable(void)
     semihosting.target = SEMIHOSTING_TARGET_AUTO;
 }
 
-int qemu_semihosting_config_options(const char *optarg)
+int qemu_semihosting_config_options(const char *optstr)
 {
     QemuOptsList *opt_list = qemu_find_opts("semihosting-config");
-    QemuOpts *opts = qemu_opts_parse_noisily(opt_list, optarg, false);
+    QemuOpts *opts = qemu_opts_parse_noisily(opt_list, optstr, false);
 
     semihosting.enabled = true;
 
@@ -155,7 +155,7 @@ int qemu_semihosting_config_options(const char *optarg)
                 semihosting.target = SEMIHOSTING_TARGET_AUTO;
             } else {
                 error_report("unsupported semihosting-config %s",
-                             optarg);
+                             optstr);
                 return 1;
             }
         } else {
@@ -165,7 +165,7 @@ int qemu_semihosting_config_options(const char *optarg)
         qemu_opt_foreach(opts, add_semihosting_arg,
                          &semihosting, NULL);
     } else {
-        error_report("unsupported semihosting-config %s", optarg);
+        error_report("unsupported semihosting-config %s", optstr);
         return 1;
     }