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| author | Richard W.M. Jones | 2016-05-16 18:34:35 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2016-06-16 18:39:04 +0200 |
| commit | 37146e7eafafd121d80d68455b8f4bc9043a9f4f (patch) | |
| tree | ec062feb3d3da88d3586707fdea627975f2be706 | |
| parent | KVM: use KVM_CAP_MAX_VCPU_ID (diff) | |
| download | qemu-37146e7eafafd121d80d68455b8f4bc9043a9f4f.tar.gz qemu-37146e7eafafd121d80d68455b8f4bc9043a9f4f.tar.xz qemu-37146e7eafafd121d80d68455b8f4bc9043a9f4f.zip | |
vl.c: Add '-L help' which lists data dirs.
QEMU compiles a list of data directories from various sources. When
consuming a QEMU binary it's useful to be able to get this list of
data directories: a primary reason is so you can list what BIOSes or
keymaps ship with this version of QEMU. However without reproducing
the method that QEMU uses internally, it's not possible to get the
list of data directories.
This commit adds a simple '-L help' option that just lists out the
data directories as qemu calculates them:
$ ./x86_64-softmmu/qemu-system-x86_64 -L help
/home/rjones/d/qemu/pc-bios
/usr/local/share/qemu
$ ./x86_64-softmmu/qemu-system-x86_64 -L /tmp -L help
/tmp
/home/rjones/d/qemu/pc-bios
/usr/local/share/qemu
Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1463416475-11728-2-git-send-email-rjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | qemu-options.hx | 2 | ||||
| -rw-r--r-- | vl.c | 13 |
2 files changed, 14 insertions, 1 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 0e42ba55be..17f15ad1fe 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -3214,6 +3214,8 @@ STEXI @item -L @var{path} @findex -L Set the directory for the BIOS, VGA BIOS and keymaps. + +To list all the data directories, use @code{-L help}. ETEXI DEF("bios", HAS_ARG, QEMU_OPTION_bios, \ @@ -2968,6 +2968,7 @@ int main(int argc, char **argv, char **envp) FILE *vmstate_dump_file = NULL; Error *main_loop_err = NULL; Error *err = NULL; + bool list_data_dirs = false; qemu_init_cpu_loop(); qemu_mutex_lock_iothread(); @@ -3354,7 +3355,9 @@ int main(int argc, char **argv, char **envp) add_device_config(DEV_GDB, optarg); break; case QEMU_OPTION_L: - if (data_dir_idx < ARRAY_SIZE(data_dir)) { + if (is_help_option(optarg)) { + list_data_dirs = true; + } else if (data_dir_idx < ARRAY_SIZE(data_dir)) { data_dir[data_dir_idx++] = optarg; } break; @@ -4086,6 +4089,14 @@ int main(int argc, char **argv, char **envp) data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR; } + /* -L help lists the data directories and exits. */ + if (list_data_dirs) { + for (i = 0; i < data_dir_idx; i++) { + printf("%s\n", data_dir[i]); + } + exit(0); + } + smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL)); machine_class->max_cpus = machine_class->max_cpus ?: 1; /* Default to UP */ |