android/android_bootable_recovery
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save the log from recovery's last run in /cache/recovery/last_log

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Also, don't lose the start of the log whenever a wipe cache is
performed.

Change-Id: I29999762854eb36d1ff2bc20b4183c9077b19777
This commit is contained in:
Doug Zongker 2010-09-29 13:21:30 -07:00
parent 9b125b04c6
commit 2c3539e4d8
1 changed files with 40 additions and 17 deletions
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57
recovery.c
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@ -53,6 +53,7 @@ static const struct option OPTIONS[] = {
static const char *COMMAND_FILE = "/cache/recovery/command";
static const char *INTENT_FILE = "/cache/recovery/intent";
static const char *LOG_FILE = "/cache/recovery/log";
static const char *LAST_LOG_FILE = "/cache/recovery/last_log";
static const char *SDCARD_ROOT = "/sdcard";
static const char *TEMPORARY_LOG_FILE = "/tmp/recovery.log";
static const char *SIDELOAD_TEMP_DIR = "/tmp/sideload";
@ -237,6 +238,34 @@ set_sdcard_update_bootloader_message() {
set_bootloader_message(&boot);
}
// How much of the temp log we have copied to the copy in cache.
static long tmplog_offset = 0;
static void
copy_log_file(const char* destination, int append) {
FILE *log = fopen_path(destination, append ? "a" : "w");
if (log == NULL) {
LOGE("Can't open %s\n", destination);
} else {
FILE *tmplog = fopen(TEMPORARY_LOG_FILE, "r");
if (tmplog == NULL) {
LOGE("Can't open %s\n", TEMPORARY_LOG_FILE);
} else {
if (append) {
fseek(tmplog, tmplog_offset, SEEK_SET); // Since last write
}
char buf[4096];
while (fgets(buf, sizeof(buf), tmplog)) fputs(buf, log);
if (append) {
tmplog_offset = ftell(tmplog);
}
check_and_fclose(tmplog, TEMPORARY_LOG_FILE);
}
check_and_fclose(log, destination);
}
}
// clear the recovery command and prepare to boot a (hopefully working) system,
// copy our log file to cache as well (for the system to read), and
// record any intent we were asked to communicate back to the system.
@ -255,23 +284,9 @@ finish_recovery(const char *send_intent) {
}
// Copy logs to cache so the system can find out what happened.
FILE *log = fopen_path(LOG_FILE, "a");
if (log == NULL) {
LOGE("Can't open %s\n", LOG_FILE);
} else {
FILE *tmplog = fopen(TEMPORARY_LOG_FILE, "r");
if (tmplog == NULL) {
LOGE("Can't open %s\n", TEMPORARY_LOG_FILE);
} else {
static long tmplog_offset = 0;
fseek(tmplog, tmplog_offset, SEEK_SET); // Since last write
char buf[4096];
while (fgets(buf, sizeof(buf), tmplog)) fputs(buf, log);
tmplog_offset = ftell(tmplog);
check_and_fclose(tmplog, TEMPORARY_LOG_FILE);
}
check_and_fclose(log, LOG_FILE);
}
copy_log_file(LOG_FILE, true);
copy_log_file(LAST_LOG_FILE, false);
chmod(LAST_LOG_FILE, 0640);
// Reset to mormal system boot so recovery won't cycle indefinitely.
struct bootloader_message boot;
@ -292,6 +307,14 @@ erase_volume(const char *volume) {
ui_set_background(BACKGROUND_ICON_INSTALLING);
ui_show_indeterminate_progress();
ui_print("Formatting %s...\n", volume);
if (strcmp(volume, "/cache") == 0) {
// Any part of the log we'd copied to cache is now gone.
// Reset the pointer so we copy from the beginning of the temp
// log.
tmplog_offset = 0;
}
return format_volume(volume);
}