fastboot: Query the name of the super partition.
This patch adds a new variable, "super-partition-name", to query the
name of the super partition (with a slot suffix if it has one). The
fastboot flashing tool has been updated to query this variable.
Since the super partition name can no longer be determined without
fastbootd, the presence of super_empty.img is used to test for
dynamic partition support rather than the presence of a super partition.
Bug: 116802789
Test: fastboot flashall on retrofit device
Change-Id: If830768eba6de7f31ac3183c64167fae973c77a4
diff --git a/fastboot/fastboot.cpp b/fastboot/fastboot.cpp
index e358bec..625e047 100644
--- a/fastboot/fastboot.cpp
+++ b/fastboot/fastboot.cpp
@@ -1129,25 +1129,6 @@
return fb->GetVar("is-userspace", &value) == fastboot::SUCCESS && value == "yes";
}
-static bool if_partition_exists(const std::string& partition, const std::string& slot) {
- std::string has_slot;
- std::string partition_name = partition;
-
- if (fb->GetVar("has-slot:" + partition, &has_slot) == fastboot::SUCCESS && has_slot == "yes") {
- if (slot == "") {
- std::string current_slot = get_current_slot();
- if (current_slot == "") {
- die("Failed to identify current slot");
- }
- partition_name += "_" + current_slot;
- } else {
- partition_name += "_" + slot;
- }
- }
- std::string partition_size;
- return fb->GetVar("partition-size:" + partition_name, &partition_size) == fastboot::SUCCESS;
-}
-
static void reboot_to_userspace_fastboot() {
fb->RebootTo("fastboot");
@@ -1307,10 +1288,6 @@
}
void FlashAllTool::UpdateSuperPartition() {
- if (!if_partition_exists("super", "")) {
- return;
- }
-
int fd = source_.OpenFile("super_empty.img");
if (fd < 0) {
return;
@@ -1321,9 +1298,14 @@
if (!is_userspace_fastboot()) {
die("Failed to boot into userspace; one or more components might be unbootable.");
}
- fb->Download("super", fd, get_file_size(fd));
- std::string command = "update-super:super";
+ std::string super_name;
+ if (fb->GetVar("super-partition-name", &super_name) != fastboot::RetCode::SUCCESS) {
+ super_name = "super";
+ }
+ fb->Download(super_name, fd, get_file_size(fd));
+
+ std::string command = "update-super:" + super_name;
if (wipe_) {
command += ":wipe";
}