[v3,2/4] datadir: Use bundle mechanism

Commit Message

Akihiko Odaki Feb. 28, 2022, 12:57 a.m. UTC

softmmu/datadir.c had its own implementation to find files in the
build tree, but now bundle mechanism provides the unified
implementation which works for datadir and the other files.

Signed-off-by: Akihiko Odaki <[e-mail]>
---
 configure         |  2 ++
 meson.build       |  2 +-
 softmmu/datadir.c | 35 ++++++++++++-----------------------
 3 files changed, 15 insertions(+), 24 deletions(-)

Patch

diff --git a/configure b/configure
index c56ed53ee36..fda1a35cbc0 100755
--- a/configure
+++ b/configure
@@ -3089,6 +3089,8 @@  for f in $LINKS ; do
     fi
 done
 
+symlink ../../pc-bios qemu-bundle/share/qemu
+
 (for i in $cross_cc_vars; do
   export $i
 done
diff --git a/meson.build b/meson.build
index 8df40bfac4d..a2c987b41d6 100644
--- a/meson.build
+++ b/meson.build
@@ -1469,7 +1469,7 @@  endif
 config_host_data.set_quoted('CONFIG_BINDIR', get_option('prefix') / get_option('bindir'))
 config_host_data.set_quoted('CONFIG_PREFIX', get_option('prefix'))
 config_host_data.set_quoted('CONFIG_QEMU_CONFDIR', get_option('prefix') / qemu_confdir)
-config_host_data.set_quoted('CONFIG_QEMU_DATADIR', get_option('prefix') / qemu_datadir)
+config_host_data.set_quoted('CONFIG_QEMU_BUNDLE_DATADIR', qemu_datadir)
 config_host_data.set_quoted('CONFIG_QEMU_DESKTOPDIR', get_option('prefix') / qemu_desktopdir)
 config_host_data.set_quoted('CONFIG_QEMU_FIRMWAREPATH', get_option('qemu_firmwarepath'))
 config_host_data.set_quoted('CONFIG_QEMU_HELPERDIR', get_option('prefix') / get_option('libexecdir'))
diff --git a/softmmu/datadir.c b/softmmu/datadir.c
index 504c4665bed..2d8366039d9 100644
--- a/softmmu/datadir.c
+++ b/softmmu/datadir.c
@@ -36,6 +36,7 @@  char *qemu_find_file(int type, const char *name)
     int i;
     const char *subdir;
     char *buf;
+    char *bundle;
 
     /* Try the name as a straight path first */
     if (access(name, R_OK) == 0) {
@@ -62,6 +63,16 @@  char *qemu_find_file(int type, const char *name)
         }
         g_free(buf);
     }
+
+    bundle = g_strdup_printf("%s/%s%s",
+                             CONFIG_QEMU_BUNDLE_DATADIR, subdir, name);
+    buf = find_bundle(bundle);
+    g_free(bundle);
+    if (buf) {
+        trace_load_file(name, buf);
+        return buf;
+    }
+
     return NULL;
 }
 
@@ -84,26 +95,6 @@  void qemu_add_data_dir(char *path)
     data_dir[data_dir_idx++] = path;
 }
 
-/*
- * Find a likely location for support files using the location of the binary.
- * When running from the build tree this will be "$bindir/pc-bios".
- * Otherwise, this is CONFIG_QEMU_DATADIR (possibly relocated).
- *
- * The caller must use g_free() to free the returned data when it is
- * no longer required.
- */
-static char *find_datadir(void)
-{
-    g_autofree char *dir = NULL;
-
-    dir = g_build_filename(qemu_get_exec_dir(), "pc-bios", NULL);
-    if (g_file_test(dir, G_FILE_TEST_IS_DIR)) {
-        return g_steal_pointer(&dir);
-    }
-
-    return get_relocated_path(CONFIG_QEMU_DATADIR);
-}
-
 void qemu_add_default_firmwarepath(void)
 {
     char **dirs;
@@ -115,9 +106,6 @@  void qemu_add_default_firmwarepath(void)
         qemu_add_data_dir(get_relocated_path(dirs[i]));
     }
     g_strfreev(dirs);
-
-    /* try to find datadir relative to the executable path */
-    qemu_add_data_dir(find_datadir());
 }
 
 void qemu_list_data_dirs(void)
@@ -126,4 +114,5 @@  void qemu_list_data_dirs(void)
     for (i = 0; i < data_dir_idx; i++) {
         printf("%s\n", data_dir[i]);
     }
+    list_bundle_candidates(CONFIG_QEMU_BUNDLE_DATADIR);
 }