Merge "Update BCP computation to use derive_classpath"
diff --git a/cmds/installd/file_parsing.h b/cmds/installd/file_parsing.h
index 3e2f815..88801ca 100644
--- a/cmds/installd/file_parsing.h
+++ b/cmds/installd/file_parsing.h
@@ -19,18 +19,14 @@
#include <fstream>
#include <functional>
-#include <string>
+#include <string_view>
+#include "android-base/unique_fd.h"
namespace android {
namespace installd {
-bool ParseFile(const std::string& strFile, std::function<bool (const std::string&)> parse) {
- std::ifstream input_stream(strFile);
-
- if (!input_stream.is_open()) {
- return false;
- }
-
+template<typename Func>
+bool ParseFile(std::istream& input_stream, Func parse) {
while (!input_stream.eof()) {
// Read the next line.
std::string line;
@@ -54,6 +50,15 @@
return true;
}
+template<typename Func>
+bool ParseFile(std::string_view str_file, Func parse) {
+ std::ifstream ifs(str_file);
+ if (!ifs.is_open()) {
+ return false;
+ }
+ return ParseFile(ifs, parse);
+}
+
} // namespace installd
} // namespace android
diff --git a/cmds/installd/otapreopt.cpp b/cmds/installd/otapreopt.cpp
index ed31ad9..6aa32b8 100644
--- a/cmds/installd/otapreopt.cpp
+++ b/cmds/installd/otapreopt.cpp
@@ -26,6 +26,7 @@
#include <sys/capability.h>
#include <sys/prctl.h>
#include <sys/stat.h>
+#include <sys/mman.h>
#include <android-base/logging.h>
#include <android-base/macros.h>
@@ -36,6 +37,7 @@
#include <log/log.h>
#include <private/android_filesystem_config.h>
+#include "android-base/file.h"
#include "dexopt.h"
#include "file_parsing.h"
#include "globals.h"
@@ -195,38 +197,63 @@
// export NAME VALUE
// For simplicity, don't respect string quotation. The values we are interested in can be
// encoded without them.
- // init.environ.rc and etc/classpath have the same format for
- // environment variable exports and can be matched by the same regex.
+ //
+ // init.environ.rc and derive_classpath all have the same format for
+ // environment variable exports (since they are all meant to be read by
+ // init) and can be matched by the same regex.
+
+ std::regex export_regex("\\s*export\\s+(\\S+)\\s+(\\S+)");
+ auto parse_results = [&](auto& input) {
+ ParseFile(input, [&](const std::string& line) {
+ std::smatch export_match;
+ if (!std::regex_match(line, export_match, export_regex)) {
+ return true;
+ }
+
+ if (export_match.size() != 3) {
+ return true;
+ }
+
+ std::string name = export_match[1].str();
+ std::string value = export_match[2].str();
+
+ system_properties_.SetProperty(name, value);
+
+ return true;
+ });
+ };
+
// TODO Just like with the system-properties above we really should have
// common code between init and otapreopt to deal with reading these
// things. See b/181182967
+ // There have been a variety of places the various env-vars have been
+ // over the years. Expand or reduce this list as needed.
static constexpr const char* kEnvironmentVariableSources[] = {
- "/init.environ.rc", "/etc/classpath"
+ "/init.environ.rc",
};
-
- std::regex export_regex("\\s*export\\s+(\\S+)\\s+(\\S+)");
+ // First get everything from the static files.
for (const char* env_vars_file : kEnvironmentVariableSources) {
- bool parse_result = ParseFile(env_vars_file, [&](const std::string& line) {
- std::smatch export_match;
- if (!std::regex_match(line, export_match, export_regex)) {
- return true;
- }
-
- if (export_match.size() != 3) {
- return true;
- }
-
- std::string name = export_match[1].str();
- std::string value = export_match[2].str();
-
- system_properties_.SetProperty(name, value);
-
- return true;
- });
- if (!parse_result) {
- return false;
- }
+ parse_results(env_vars_file);
}
+
+ // Next get everything from derive_classpath, since we're already in the
+ // chroot it will get the new versions of any dependencies.
+ {
+ android::base::unique_fd fd(memfd_create("derive_classpath_temp", MFD_CLOEXEC));
+ if (!fd.ok()) {
+ LOG(ERROR) << "Unable to create fd for derive_classpath";
+ return false;
+ }
+ std::string memfd_file = StringPrintf("/proc/%d/fd/%d", getpid(), fd.get());
+ std::string error_msg;
+ if (!Exec({"/apex/com.android.sdkext/bin/derive_classpath", memfd_file}, &error_msg)) {
+ PLOG(ERROR) << "Running derive_classpath failed: " << error_msg;
+ return false;
+ }
+ std::ifstream ifs(memfd_file);
+ parse_results(ifs);
+ }
+
if (system_properties_.GetProperty(kAndroidDataPathPropertyName) == nullptr) {
return false;
}
diff --git a/cmds/installd/otapreopt_chroot.cpp b/cmds/installd/otapreopt_chroot.cpp
index 83f01de..c62734a 100644
--- a/cmds/installd/otapreopt_chroot.cpp
+++ b/cmds/installd/otapreopt_chroot.cpp
@@ -275,6 +275,7 @@
static constexpr const std::string_view kRequiredApexs[] = {
"com.android.art",
"com.android.runtime",
+ "com.android.sdkext", // For derive_classpath
};
std::array<bool, arraysize(kRequiredApexs)> found_apexs{ false, false };
DIR* apex_dir = opendir("/apex");