[PATCH 14/18] boot: Move code to common/
Sascha Hauer
s.hauer at pengutronix.de
Fri Jul 22 05:44:28 PDT 2016
Normally code in commands/ shall only do the option parsing whereas the
functionality shall be in common/ to make the code usable from C aswell.
Do this in the boot code aswell, move it to common/boot.c and add the
function prototypes to include/boot.h
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
commands/Kconfig | 1 +
commands/boot.c | 334 ++----------------------------------------------------
common/Kconfig | 3 +
common/Makefile | 1 +
common/boot.c | 339 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
include/boot.h | 9 ++
6 files changed, 360 insertions(+), 327 deletions(-)
create mode 100644 common/boot.c
diff --git a/commands/Kconfig b/commands/Kconfig
index 3a0977b..0685664 100644
--- a/commands/Kconfig
+++ b/commands/Kconfig
@@ -294,6 +294,7 @@ config CMD_BOOT_ORDER
config CMD_BOOT
tristate
depends on BOOTM
+ select BOOT
prompt "boot"
help
Select this for booting based on scripts. Unlike the bootm command which
diff --git a/commands/boot.c b/commands/boot.c
index 58968a2..e757011 100644
--- a/commands/boot.c
+++ b/commands/boot.c
@@ -11,339 +11,21 @@
*
*/
-#include <environment.h>
#include <globalvar.h>
-#include <magicvar.h>
-#include <watchdog.h>
#include <command.h>
-#include <readkey.h>
#include <common.h>
#include <getopt.h>
-#include <blspec.h>
-#include <libgen.h>
#include <malloc.h>
-#include <clock.h>
-#include <bootm.h>
-#include <glob.h>
-#include <init.h>
-#include <menu.h>
-#include <fs.h>
+#include <boot.h>
#include <complete.h>
#include <linux/stat.h>
-static int verbose;
-static int dryrun;
-static int timeout;
-
-int bootentries_add_entry(struct bootentries *entries, struct bootentry *entry)
-{
- list_add_tail(&entry->list, &entries->entries);
-
- return 0;
-}
-
-static struct bootentries *bootentries_alloc(void)
-{
- struct bootentries *bootentries;
-
- bootentries = xzalloc(sizeof(*bootentries));
- INIT_LIST_HEAD(&bootentries->entries);
-
- if (IS_ENABLED(CONFIG_MENU)) {
- bootentries->menu = menu_alloc();
- bootentries->menu->display = basprintf("boot");
- }
-
- return bootentries;
-}
-
-static void bootentries_free(struct bootentries *bootentries)
-{
- struct bootentry *be, *tmp;
-
- list_for_each_entry_safe(be, tmp, &bootentries->entries, list) {
- list_del(&be->list);
- free(be->title);
- free(be->description);
- free(be->me.display);
- be->release(be);
- }
-
- if (bootentries->menu)
- free(bootentries->menu->display);
- free(bootentries->menu);
- free(bootentries);
-}
-
-struct bootentry_script {
- struct bootentry entry;
- char *scriptpath;
-};
-
-/*
- * Start a single boot script. 'path' is a full path to a boot script.
- */
-static int bootscript_boot(struct bootentry *entry, int verbose, int dryrun)
-{
- struct bootentry_script *bs = container_of(entry, struct bootentry_script, entry);
- int ret;
-
- struct bootm_data data = {};
-
- if (dryrun) {
- printf("Would run %s\n", bs->scriptpath);
- return 0;
- }
-
- globalvar_set_match("linux.bootargs.dyn.", "");
-
- ret = run_command(bs->scriptpath);
- if (ret) {
- printf("Running %s failed\n", bs->scriptpath);
- goto out;
- }
-
- bootm_data_init_defaults(&data);
-
- if (verbose)
- data.verbose = verbose;
- if (dryrun)
- data.dryrun = dryrun;
-
- ret = bootm_boot(&data);
- if (ret)
- pr_err("Booting %s failed: %s\n", basename(bs->scriptpath), strerror(-ret));
-out:
- return ret;
-}
-
-static unsigned int boot_watchdog_timeout;
-
-static int init_boot_watchdog_timeout(void)
-{
- return globalvar_add_simple_int("boot.watchdog_timeout",
- &boot_watchdog_timeout, "%u");
-}
-late_initcall(init_boot_watchdog_timeout);
-
-BAREBOX_MAGICVAR_NAMED(global_watchdog_timeout, global.boot.watchdog_timeout,
- "Watchdog enable timeout in seconds before booting");
-
-static int boot_entry(struct bootentry *be)
-{
- int ret;
-
- printf("booting %s\n", be->title);
-
- if (IS_ENABLED(CONFIG_WATCHDOG) && boot_watchdog_timeout) {
- ret = watchdog_set_timeout(boot_watchdog_timeout);
- if (ret)
- pr_warn("Failed to enable watchdog: %s\n", strerror(-ret));
- }
-
- ret = be->boot(be, verbose, dryrun);
-
- if (ret)
- printf("booting %s failed: %s\n", be->title, strerror(-ret));
-
- return ret;
-}
-
-static void bootsource_action(struct menu *m, struct menu_entry *me)
-{
- struct bootentry *be = container_of(me, struct bootentry, me);
- int ret;
-
- ret = boot_entry(be);
- if (ret)
- printf("Booting failed with: %s\n", strerror(-ret));
-
- printf("Press any key to continue\n");
-
- read_key();
-}
-
-static void bootscript_entry_release(struct bootentry *entry)
-{
- struct bootentry_script *bs = container_of(entry, struct bootentry_script, entry);
-
- free(bs->scriptpath);
- free(bs->entry.me.display);
- free(bs);
-}
-
-/*
- * bootscript_create_entry - create a boot entry from a script name
- */
-static int bootscript_create_entry(struct bootentries *bootentries, const char *name)
-{
- struct bootentry_script *bs;
- enum filetype type;
-
- type = file_name_detect_type(name);
- if (type != filetype_sh)
- return -EINVAL;
-
- bs = xzalloc(sizeof(*bs));
- bs->entry.me.type = MENU_ENTRY_NORMAL;
- bs->entry.release = bootscript_entry_release;
- bs->entry.boot = bootscript_boot;
- bs->scriptpath = xstrdup(name);
- bs->entry.title = xstrdup(basename(bs->scriptpath));
- bs->entry.description = basprintf("script: %s", name);
- bootentries_add_entry(bootentries, &bs->entry);
-
- return 0;
-}
-
-/*
- * bootscript_scan_path - create boot entries from a path
- *
- * path can either be a full path to a bootscript or a full path to a diretory
- * containing bootscripts.
- */
-static int bootscript_scan_path(struct bootentries *bootentries, const char *path)
-{
- struct stat s;
- char *files;
- int ret, i;
- int found = 0;
- glob_t globb;
-
- ret = stat(path, &s);
- if (ret)
- return ret;
-
- if (!S_ISDIR(s.st_mode)) {
- ret = bootscript_create_entry(bootentries, path);
- if (ret)
- return ret;
- return 1;
- }
-
- files = basprintf("%s/*", path);
-
- glob(files, 0, NULL, &globb);
-
- for (i = 0; i < globb.gl_pathc; i++) {
- char *bootscript_path = globb.gl_pathv[i];
-
- if (*basename(bootscript_path) == '.')
- continue;
-
- bootscript_create_entry(bootentries, bootscript_path);
- found++;
- }
-
- globfree(&globb);
- free(files);
-
- ret = found;
-
- return ret;
-}
-
-/*
- * bootentry_parse_one - create boot entries from a name
- *
- * name can be:
- * - a name of a boot script under /env/boot
- * - a full path of a boot script
- * - a device name
- * - a cdev name
- * - a full path of a directory containing bootloader spec entries
- * - a full path of a directory containing bootscripts
- *
- * Returns the number of entries found or a negative error code.
- */
-static int bootentry_parse_one(struct bootentries *bootentries, const char *name)
-{
- int found = 0, ret;
-
- if (IS_ENABLED(CONFIG_BLSPEC)) {
- ret = blspec_scan_devicename(bootentries, name);
- if (ret > 0)
- found += ret;
-
- if (*name == '/') {
- ret = blspec_scan_directory(bootentries, name);
- if (ret > 0)
- found += ret;
- }
- }
-
- if (!found) {
- char *path;
-
- if (*name != '/')
- path = basprintf("/env/boot/%s", name);
- else
- path = xstrdup(name);
-
- ret = bootscript_scan_path(bootentries, path);
- if (ret > 0)
- found += ret;
-
- free(path);
- }
-
- return found;
-}
-
-/*
- * bootsources_menu - show a menu from an array of names
- */
-static void bootsources_menu(struct bootentries *bootentries)
-{
- struct bootentry *entry;
- struct menu_entry *back_entry;
-
- if (!IS_ENABLED(CONFIG_MENU)) {
- printf("no menu support available\n");
- return;
- }
-
- bootentries_for_each_entry(bootentries, entry) {
- if (!entry->me.display)
- entry->me.display = xstrdup(entry->title);
- entry->me.action = bootsource_action;
- menu_add_entry(bootentries->menu, &entry->me);
- }
-
- back_entry = xzalloc(sizeof(*back_entry));
- back_entry->display = "back";
- back_entry->type = MENU_ENTRY_NORMAL;
- back_entry->non_re_ent = 1;
- menu_add_entry(bootentries->menu, back_entry);
-
- if (timeout >= 0)
- bootentries->menu->auto_select = timeout;
-
- menu_show(bootentries->menu);
-
- free(back_entry);
-}
-
-/*
- * bootsources_list - list boot entries from an array of names
- */
-static void bootsources_list(struct bootentries *bootentries)
-{
- struct bootentry *entry;
-
- printf("%-20s\n", "title");
- printf("%-20s\n", "------");
-
- bootentries_for_each_entry(bootentries, entry)
- printf("%-20s %s\n", entry->title, entry->description);
-}
-
static int do_boot(int argc, char *argv[])
{
char *freep = NULL;
int opt, ret = 0, do_list = 0, do_menu = 0;
- int i;
+ int i, dryrun = 0, verbose = 0, timeout = -1;
struct bootentries *entries;
struct bootentry *entry;
@@ -369,7 +51,7 @@ static int do_boot(int argc, char *argv[])
timeout = simple_strtoul(optarg, NULL, 0);
break;
case 'w':
- boot_watchdog_timeout = simple_strtoul(optarg, NULL, 0);
+ boot_set_watchdog_timeout(simple_strtoul(optarg, NULL, 0));
break;
}
}
@@ -378,7 +60,7 @@ static int do_boot(int argc, char *argv[])
if (optind < argc) {
for (i = optind; i < argc; i++)
- bootentry_parse_one(entries, argv[i]);
+ bootentry_create_from_name(entries, argv[i]);
} else {
const char *def;
char *sep, *name;
@@ -390,7 +72,7 @@ static int do_boot(int argc, char *argv[])
sep = freep = xstrdup(def);
while ((name = strsep(&sep, " ")) != NULL)
- bootentry_parse_one(entries, name);
+ bootentry_create_from_name(entries, name);
free(freep);
}
@@ -401,12 +83,12 @@ static int do_boot(int argc, char *argv[])
}
if (do_menu) {
- bootsources_menu(entries);
+ bootsources_menu(entries, timeout);
goto out;
}
bootentries_for_each_entry(entries, entry) {
- ret = boot_entry(entry);
+ ret = boot_entry(entry, verbose, dryrun);
if (!ret)
break;
}
@@ -450,5 +132,3 @@ BAREBOX_CMD_START(boot)
BAREBOX_CMD_GROUP(CMD_GRP_BOOT)
BAREBOX_CMD_HELP(cmd_boot_help)
BAREBOX_CMD_END
-
-BAREBOX_MAGICVAR_NAMED(global_boot_default, global.boot.default, "default boot order");
diff --git a/common/Kconfig b/common/Kconfig
index 6ce2a76..8326340 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -110,6 +110,9 @@ config UBIFORMAT
depends on MTD_UBI
default y
+config BOOT
+ bool
+
menu "General Settings"
config LOCALVERSION
diff --git a/common/Makefile b/common/Makefile
index 17fcb5f..00bc0e8 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -58,6 +58,7 @@ obj-$(CONFIG_FIRMWARE) += firmware.o
obj-$(CONFIG_UBIFORMAT) += ubiformat.o
obj-$(CONFIG_BAREBOX_UPDATE_IMX_NAND_FCB) += imx-bbu-nand-fcb.o
obj-$(CONFIG_CONSOLE_RATP) += ratp.o
+obj-$(CONFIG_BOOT) += boot.o
quiet_cmd_pwd_h = PWDH $@
ifdef CONFIG_PASSWORD
diff --git a/common/boot.c b/common/boot.c
new file mode 100644
index 0000000..4d29349
--- /dev/null
+++ b/common/boot.c
@@ -0,0 +1,339 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include <environment.h>
+#include <globalvar.h>
+#include <magicvar.h>
+#include <watchdog.h>
+#include <command.h>
+#include <readkey.h>
+#include <common.h>
+#include <blspec.h>
+#include <libgen.h>
+#include <malloc.h>
+#include <bootm.h>
+#include <glob.h>
+#include <init.h>
+#include <menu.h>
+#include <fs.h>
+
+#include <linux/stat.h>
+
+int bootentries_add_entry(struct bootentries *entries, struct bootentry *entry)
+{
+ list_add_tail(&entry->list, &entries->entries);
+
+ return 0;
+}
+
+struct bootentries *bootentries_alloc(void)
+{
+ struct bootentries *bootentries;
+
+ bootentries = xzalloc(sizeof(*bootentries));
+ INIT_LIST_HEAD(&bootentries->entries);
+
+ if (IS_ENABLED(CONFIG_MENU)) {
+ bootentries->menu = menu_alloc();
+ bootentries->menu->display = basprintf("boot");
+ }
+
+ return bootentries;
+}
+
+void bootentries_free(struct bootentries *bootentries)
+{
+ struct bootentry *be, *tmp;
+
+ list_for_each_entry_safe(be, tmp, &bootentries->entries, list) {
+ list_del(&be->list);
+ free(be->title);
+ free(be->description);
+ free(be->me.display);
+ be->release(be);
+ }
+
+ if (bootentries->menu)
+ free(bootentries->menu->display);
+ free(bootentries->menu);
+ free(bootentries);
+}
+
+struct bootentry_script {
+ struct bootentry entry;
+ char *scriptpath;
+};
+
+/*
+ * Start a single boot script. 'path' is a full path to a boot script.
+ */
+static int bootscript_boot(struct bootentry *entry, int verbose, int dryrun)
+{
+ struct bootentry_script *bs = container_of(entry, struct bootentry_script, entry);
+ int ret;
+
+ struct bootm_data data = {};
+
+ if (dryrun) {
+ printf("Would run %s\n", bs->scriptpath);
+ return 0;
+ }
+
+ globalvar_set_match("linux.bootargs.dyn.", "");
+
+ ret = run_command(bs->scriptpath);
+ if (ret) {
+ printf("Running %s failed\n", bs->scriptpath);
+ goto out;
+ }
+
+ bootm_data_init_defaults(&data);
+
+ if (verbose)
+ data.verbose = verbose;
+ if (dryrun)
+ data.dryrun = dryrun;
+
+ ret = bootm_boot(&data);
+ if (ret)
+ pr_err("Booting %s failed: %s\n", basename(bs->scriptpath), strerror(-ret));
+out:
+ return ret;
+}
+
+static unsigned int boot_watchdog_timeout;
+
+void boot_set_watchdog_timeout(unsigned int timeout)
+{
+ boot_watchdog_timeout = timeout;
+}
+
+static int init_boot_watchdog_timeout(void)
+{
+ return globalvar_add_simple_int("boot.watchdog_timeout",
+ &boot_watchdog_timeout, "%u");
+}
+late_initcall(init_boot_watchdog_timeout);
+
+BAREBOX_MAGICVAR_NAMED(global_watchdog_timeout, global.boot.watchdog_timeout,
+ "Watchdog enable timeout in seconds before booting");
+
+int boot_entry(struct bootentry *be, int verbose, int dryrun)
+{
+ int ret;
+
+ printf("booting %s\n", be->title);
+
+ if (IS_ENABLED(CONFIG_WATCHDOG) && boot_watchdog_timeout) {
+ ret = watchdog_set_timeout(boot_watchdog_timeout);
+ if (ret)
+ pr_warn("Failed to enable watchdog: %s\n", strerror(-ret));
+ }
+
+ ret = be->boot(be, verbose, dryrun);
+
+ if (ret)
+ printf("booting %s failed: %s\n", be->title, strerror(-ret));
+
+ return ret;
+}
+
+static void bootsource_action(struct menu *m, struct menu_entry *me)
+{
+ struct bootentry *be = container_of(me, struct bootentry, me);
+ int ret;
+
+ ret = boot_entry(be, 0, 0);
+ if (ret)
+ printf("Booting failed with: %s\n", strerror(-ret));
+
+ printf("Press any key to continue\n");
+
+ read_key();
+}
+
+static void bootscript_entry_release(struct bootentry *entry)
+{
+ struct bootentry_script *bs = container_of(entry, struct bootentry_script, entry);
+
+ free(bs->scriptpath);
+ free(bs->entry.me.display);
+ free(bs);
+}
+
+/*
+ * bootscript_create_entry - create a boot entry from a script name
+ */
+static int bootscript_create_entry(struct bootentries *bootentries, const char *name)
+{
+ struct bootentry_script *bs;
+ enum filetype type;
+
+ type = file_name_detect_type(name);
+ if (type != filetype_sh)
+ return -EINVAL;
+
+ bs = xzalloc(sizeof(*bs));
+ bs->entry.me.type = MENU_ENTRY_NORMAL;
+ bs->entry.release = bootscript_entry_release;
+ bs->entry.boot = bootscript_boot;
+ bs->scriptpath = xstrdup(name);
+ bs->entry.title = xstrdup(basename(bs->scriptpath));
+ bs->entry.description = basprintf("script: %s", name);
+ bootentries_add_entry(bootentries, &bs->entry);
+
+ return 0;
+}
+
+/*
+ * bootscript_scan_path - create boot entries from a path
+ *
+ * path can either be a full path to a bootscript or a full path to a diretory
+ * containing bootscripts.
+ */
+static int bootscript_scan_path(struct bootentries *bootentries, const char *path)
+{
+ struct stat s;
+ char *files;
+ int ret, i;
+ int found = 0;
+ glob_t globb;
+
+ ret = stat(path, &s);
+ if (ret)
+ return ret;
+
+ if (!S_ISDIR(s.st_mode)) {
+ ret = bootscript_create_entry(bootentries, path);
+ if (ret)
+ return ret;
+ return 1;
+ }
+
+ files = basprintf("%s/*", path);
+
+ glob(files, 0, NULL, &globb);
+
+ for (i = 0; i < globb.gl_pathc; i++) {
+ char *bootscript_path = globb.gl_pathv[i];
+
+ if (*basename(bootscript_path) == '.')
+ continue;
+
+ bootscript_create_entry(bootentries, bootscript_path);
+ found++;
+ }
+
+ globfree(&globb);
+ free(files);
+
+ ret = found;
+
+ return ret;
+}
+
+/*
+ * bootentry_create_from_name - create boot entries from a name
+ *
+ * name can be:
+ * - a name of a boot script under /env/boot
+ * - a full path of a boot script
+ * - a device name
+ * - a cdev name
+ * - a full path of a directory containing bootloader spec entries
+ * - a full path of a directory containing bootscripts
+ *
+ * Returns the number of entries found or a negative error code.
+ */
+int bootentry_create_from_name(struct bootentries *bootentries,
+ const char *name)
+{
+ int found = 0, ret;
+
+ if (IS_ENABLED(CONFIG_BLSPEC)) {
+ ret = blspec_scan_devicename(bootentries, name);
+ if (ret > 0)
+ found += ret;
+
+ if (*name == '/') {
+ ret = blspec_scan_directory(bootentries, name);
+ if (ret > 0)
+ found += ret;
+ }
+ }
+
+ if (!found) {
+ char *path;
+
+ if (*name != '/')
+ path = basprintf("/env/boot/%s", name);
+ else
+ path = xstrdup(name);
+
+ ret = bootscript_scan_path(bootentries, path);
+ if (ret > 0)
+ found += ret;
+
+ free(path);
+ }
+
+ return found;
+}
+
+/*
+ * bootsources_menu - show a menu from an array of names
+ */
+void bootsources_menu(struct bootentries *bootentries, int timeout)
+{
+ struct bootentry *entry;
+ struct menu_entry *back_entry;
+
+ if (!IS_ENABLED(CONFIG_MENU)) {
+ printf("no menu support available\n");
+ return;
+ }
+
+ bootentries_for_each_entry(bootentries, entry) {
+ if (!entry->me.display)
+ entry->me.display = xstrdup(entry->title);
+ entry->me.action = bootsource_action;
+ menu_add_entry(bootentries->menu, &entry->me);
+ }
+
+ back_entry = xzalloc(sizeof(*back_entry));
+ back_entry->display = "back";
+ back_entry->type = MENU_ENTRY_NORMAL;
+ back_entry->non_re_ent = 1;
+ menu_add_entry(bootentries->menu, back_entry);
+
+ if (timeout >= 0)
+ bootentries->menu->auto_select = timeout;
+
+ menu_show(bootentries->menu);
+
+ free(back_entry);
+}
+
+/*
+ * bootsources_list - list boot entries from an array of names
+ */
+void bootsources_list(struct bootentries *bootentries)
+{
+ struct bootentry *entry;
+
+ printf("%-20s\n", "title");
+ printf("%-20s\n", "------");
+
+ bootentries_for_each_entry(bootentries, entry)
+ printf("%-20s %s\n", entry->title, entry->description);
+}
+
+BAREBOX_MAGICVAR_NAMED(global_boot_default, global.boot.default, "default boot order");
diff --git a/include/boot.h b/include/boot.h
index e0a61c5..a855cbe 100644
--- a/include/boot.h
+++ b/include/boot.h
@@ -39,4 +39,13 @@ int bootentries_add_entry(struct bootentries *entries, struct bootentry *entry);
#define bootentries_for_each_entry(bootentries, entry) \
list_for_each_entry(entry, &bootentries->entries, list)
+void boot_set_watchdog_timeout(unsigned int timeout);
+struct bootentries *bootentries_alloc(void);
+void bootentries_free(struct bootentries *bootentries);
+int bootentry_create_from_name(struct bootentries *bootentries,
+ const char *name);
+void bootsources_menu(struct bootentries *bootentries, int timeout);
+void bootsources_list(struct bootentries *bootentries);
+int boot_entry(struct bootentry *be, int verbose, int dryrun);
+
#endif /* __BOOT_H */
--
2.8.1
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