am 1649c77e: Merge "ART profiler"

* commit '1649c77ed29eada5de32ace97033b9d898e9a6eb':
  ART profiler

cmds/installd/commands.c

@@ -115,6 +115,8 @@ int uninstall(const char *pkgname, userid_t userid)
     if (create_pkg_path(pkgdir, pkgname, PKG_DIR_POSTFIX, userid))
         return -1;
 
+    remove_profile_file(pkgname);
+
     /* delete contents AND directory, no exceptions */
     return delete_dir_contents(pkgdir, 1, NULL);
 }
@@ -601,7 +603,7 @@ static void run_dexopt(int zip_fd, int odex_fd, const char* input_file_name,
 }
 
 static void run_dex2oat(int zip_fd, int oat_fd, const char* input_file_name,
-    const char* output_file_name)
+    const char* output_file_name, const char *pkgname)
 {
     char dex2oat_flags[PROPERTY_VALUE_MAX];
     property_get("dalvik.vm.dex2oat-flags", dex2oat_flags, "");
@@ -613,17 +615,25 @@ static void run_dex2oat(int zip_fd, int oat_fd, const char* input_file_name,
     char zip_location_arg[strlen("--zip-location=") + PKG_PATH_MAX];
     char oat_fd_arg[strlen("--oat-fd=") + MAX_INT_LEN];
     char oat_location_arg[strlen("--oat-name=") + PKG_PATH_MAX];
+    char profile_file[strlen("--profile-file=") + PKG_PATH_MAX];
 
     sprintf(zip_fd_arg, "--zip-fd=%d", zip_fd);
     sprintf(zip_location_arg, "--zip-location=%s", input_file_name);
     sprintf(oat_fd_arg, "--oat-fd=%d", oat_fd);
     sprintf(oat_location_arg, "--oat-location=%s", output_file_name);
+    if (strcmp(pkgname, "*") != 0) {
+        snprintf(profile_file, sizeof(profile_file), "--profile-file=%s/%s",
+                 DALVIK_CACHE_PREFIX "profiles", pkgname);
+    } else {
+        strcpy(profile_file, "--no-profile-file");
+    }
 
     ALOGV("Running %s in=%s out=%s\n", DEX2OAT_BIN, input_file_name, output_file_name);
     execl(DEX2OAT_BIN, DEX2OAT_BIN,
           zip_fd_arg, zip_location_arg,
           oat_fd_arg, oat_location_arg,
           strlen(dex2oat_flags) > 0 ? dex2oat_flags : NULL,
+          profile_file,
           (char*) NULL);
     ALOGE("execl(%s) failed: %s\n", DEX2OAT_BIN, strerror(errno));
 }
@@ -654,7 +664,8 @@ static int wait_child(pid_t pid)
     }
 }
 
-int dexopt(const char *apk_path, uid_t uid, int is_public)
+int dexopt(const char *apk_path, uid_t uid, int is_public,
+           const char *pkgname)
 {
     struct utimbuf ut;
     struct stat apk_stat, dex_stat;
@@ -708,6 +719,12 @@ int dexopt(const char *apk_path, uid_t uid, int is_public)
         goto fail;
     }
 
+    // Create profile file if there is a package name present.
+    if (strcmp(pkgname, "*") != 0) {
+        create_profile_file(pkgname, uid);
+    }
+
+
     ALOGV("DexInv: --- BEGIN '%s' ---\n", apk_path);
 
     pid_t pid;
@@ -740,7 +757,7 @@ int dexopt(const char *apk_path, uid_t uid, int is_public)
         if (strncmp(persist_sys_dalvik_vm_lib, "libdvm", 6) == 0) {
             run_dexopt(zip_fd, out_fd, apk_path, out_path);
         } else if (strncmp(persist_sys_dalvik_vm_lib, "libart", 6) == 0) {
-            run_dex2oat(zip_fd, out_fd, apk_path, out_path);
+            run_dex2oat(zip_fd, out_fd, apk_path, out_path, pkgname);
         } else {
             exit(69);   /* Unexpected persist.sys.dalvik.vm.lib value */
         }

cmds/installd/installd.c

@@ -38,8 +38,8 @@ static int do_install(char **arg, char reply[REPLY_MAX])
 
 static int do_dexopt(char **arg, char reply[REPLY_MAX])
 {
-        /* apk_path, uid, is_public */
-    return dexopt(arg[0], atoi(arg[1]), atoi(arg[2]));
+        /* apk_path, uid, is_public, pkgname */
+    return dexopt(arg[0], atoi(arg[1]), atoi(arg[2]), arg[3]);
 }
 
 static int do_move_dex(char **arg, char reply[REPLY_MAX])
@@ -138,7 +138,7 @@ struct cmdinfo {
 struct cmdinfo cmds[] = {
     { "ping",                 0, do_ping },
     { "install",              4, do_install },
-    { "dexopt",               3, do_dexopt },
+    { "dexopt",               4, do_dexopt },
     { "movedex",              2, do_move_dex },
     { "rmdex",                1, do_rm_dex },
     { "remove",               2, do_remove },

cmds/installd/installd.h

@@ -189,6 +189,8 @@ char *build_string3(char *s1, char *s2, char *s3);
 
 int ensure_dir(const char* path, mode_t mode, uid_t uid, gid_t gid);
 int ensure_media_user_dirs(userid_t userid);
+int create_profile_file(const char *pkgname, gid_t gid);
+void remove_profile_file(const char *pkgname);
 
 /* commands.c */
 
@@ -207,7 +209,7 @@ int get_size(const char *pkgname, userid_t userid, const char *apkpath, const ch
              const char *fwdlock_apkpath, const char *asecpath, int64_t *codesize,
              int64_t *datasize, int64_t *cachesize, int64_t *asecsize);
 int free_cache(int64_t free_size);
-int dexopt(const char *apk_path, uid_t uid, int is_public);
+int dexopt(const char *apk_path, uid_t uid, int is_public, const char *pkgName);
 int movefiles();
 int linklib(const char* target, const char* source, int userId);
 int idmap(const char *target_path, const char *overlay_path, uid_t uid);

cmds/installd/utils.c

@@ -1005,3 +1005,59 @@ int ensure_media_user_dirs(userid_t userid) {
 
     return 0;
 }
+
+int create_profile_file(const char *pkgname, gid_t gid) {
+    const char *profile_dir = DALVIK_CACHE_PREFIX "profiles";
+    struct stat profileStat;
+    char profile_file[PKG_PATH_MAX];
+
+    // If we don't have a profile directory under dalvik-cache we need to create one.
+    if (stat(profile_dir, &profileStat) < 0) {
+        // Create the profile directory under dalvik-cache.
+        if (mkdir(profile_dir, 0711) < 0) {
+            ALOGE("cannot make profile dir '%s': %s\n", profile_dir, strerror(errno));
+            return -1;
+        }
+
+        // Make the profile directory write-only for group and other. Owner can rwx it.
+        if (chmod(profile_dir, 0711) < 0) {
+            ALOGE("cannot chown profile dir '%s': %s\n", profile_dir, strerror(errno));
+            unlink(profile_dir);
+            return -1;
+        }
+    }
+
+    snprintf(profile_file, sizeof(profile_file), "%s/%s", profile_dir, pkgname);
+
+    // The 'system' user needs to be able to read the profile to determine if dex2oat
+    // needs to be run.  This is done in dalvik.system.DexFile.isDexOptNeededInternal().  So
+    // we make it world readable.  Not a problem since the dalvik cache is world
+    // readable anyway.
+
+    int fd = open(profile_file, O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW, 0664);
+
+    // Open will fail if the file already exists.  We want to ignore that.
+    if (fd >= 0) {
+        if (fchown(fd, -1, gid) < 0) {
+            ALOGE("cannot chown profile file '%s': %s\n", profile_file, strerror(errno));
+            close(fd);
+            unlink(profile_file);
+            return -1;
+        }
+
+        if (fchmod(fd, 0664) < 0) {
+            ALOGE("cannot chmod profile file '%s': %s\n", profile_file, strerror(errno));
+            close(fd);
+            unlink(profile_file);
+            return -1;
+        }
+        close(fd);
+    }
+    return 0;
+}
+
+void remove_profile_file(const char *pkgname) {
+    char profile_file[PKG_PATH_MAX];
+    snprintf(profile_file, sizeof(profile_file), "%s/%s", DALVIK_CACHE_PREFIX "profiles", pkgname);
+    unlink(profile_file);
+}