remove -writeconfig

Like -set and -readconfig, it would not really be too hard to
extend -writeconfig to parsing mechanisms other than QemuOpts.
However, the uses of -writeconfig are substantially more
limited, as it is generally easier to write the configuration
by hand in the first place.  In addition, -writeconfig does
not even try to detect cases where it prints incorrect
syntax (for example if values have a quote in them, since
qemu_config_parse does not support any kind of escaping.
Just remove it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220414145721.326866-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 0 insertions, 20 deletions

diff --git a/softmmu/vl.c b/softmmu/vl.c
index 06a0e342fe..c2919579fd 100644
--- a/softmmu/vl.c
+++ b/softmmu/vl.c
@@ -3551,26 +3551,6 @@ void qemu_init(int argc, char **argv, char **envp)
                 display_remote++;
                 break;
 #endif
-            case QEMU_OPTION_writeconfig:
-                {
-                    FILE *fp;
-                    warn_report("-writeconfig is deprecated and will go away without a replacement");
-                    if (strcmp(optarg, "-") == 0) {
-                        fp = stdout;
-                    } else {
-                        fp = fopen(optarg, "w");
-                        if (fp == NULL) {
-                            error_report("open %s: %s", optarg,
-                                         strerror(errno));
-                            exit(1);
-                        }
-                    }
-                    qemu_config_write(fp);
-                    if (fp != stdout) {
-                        fclose(fp);
-                    }
-                    break;
-                }
             case QEMU_OPTION_qtest:
                 qtest_chrdev = optarg;
                 break;