Merge "Update BCP computation to use derive_classpath" am: 7afb3a74ad am: 82be7f01a5 (484f2863) · Commits · e / os / platform_frameworks_native

cmds/installd/file_parsing.h

+13 −8

Original line number	Diff line number	Diff line
		@@ -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 @@ bool ParseFile(const std::string& strFile, std::function<bool (const std::string
		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

cmds/installd/otapreopt.cpp

+51 −24

Original line number	Diff line number	Diff line
		@@ -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"
		@@ -195,18 +197,14 @@ private:
		// 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.
		// 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
		static constexpr const char* kEnvironmentVariableSources[] = {
		"/init.environ.rc", "/etc/classpath"
		};
		//
		// 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+)");
		for (const char* env_vars_file : kEnvironmentVariableSources) {
		bool parse_result = ParseFile(env_vars_file, [&](const std::string& line) {
		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;
		@@ -223,10 +221,39 @@ private:

		return true;
		});
		if (!parse_result) {
		};

		// 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",
		};
		// First get everything from the static files.
		for (const char* env_vars_file : kEnvironmentVariableSources) {
		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;
		}

cmds/installd/otapreopt_chroot.cpp

+1 −0

Original line number	Diff line number	Diff line
		@@ -275,6 +275,7 @@ static int otapreopt_chroot(const int argc, char **arg) {
		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");