--- /dev/null
+/*
+ * Copyright (C) 2017 Simon Fels <morphis@gravedo.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; version 3.
+ *
+ * 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "anbox/cmds/system_info.h"
+#include "anbox/graphics/emugl/RenderApi.h"
+#include "anbox/graphics/emugl/DispatchTables.h"
+#include "anbox/utils/environment_file.h"
+#include "anbox/logger.h"
+
+#include "anbox/build/config.h"
+
+#include <sstream>
+#include <fstream>
+
+#include <boost/filesystem.hpp>
+
+#include "OpenGLESDispatch/EGLDispatch.h"
+
+#include "cpu_features_macros.h"
+#if defined(CPU_FEATURES_ARCH_X86)
+#include "cpuinfo_x86.h"
+#endif
+
+namespace fs = boost::filesystem;
+
+namespace {
+constexpr const char *os_release_path{"/etc/os-release"};
+constexpr const char *host_os_release_path{"/var/lib/snapd/hostfs/etc/os-release"};
+constexpr const char *proc_version_path{"/proc/version"};
+constexpr const char *binder_path{"/dev/binder"};
+constexpr const char *ashmem_path{"/dev/ashmem"};
+constexpr const char *os_release_name{"NAME"};
+constexpr const char *os_release_version{"VERSION"};
+
+class SystemInformation {
+ public:
+ SystemInformation() {
+ collect_cpu_info();
+ collect_os_info();
+ collect_kernel_info();
+ collect_graphics_info();
+ }
+
+ std::string to_text() const {
+ std::stringstream s;
+
+ s << "version: "
+ << anbox::build::version
+ << std::endl;
+
+ if (anbox::utils::is_env_set("SNAP_REVISION")) {
+ s << "snap-revision: "
+ << anbox::utils::get_env_value("SNAP_REVISION")
+ << std::endl;
+ }
+
+ s << "cpu:" << std::endl
+ << " arch: " << cpu_info_.arch << std::endl
+ << " brand: " << cpu_info_.brand << std::endl
+ << " features: " << std::endl;
+ for (const auto& feature : cpu_info_.features)
+ s << " - " << feature << std::endl;
+
+ s << "os:" << std::endl
+ << " name: " << os_info_.name << std::endl
+ << " version: " << os_info_.version << std::endl
+ << " snap-based: " << std::boolalpha << os_info_.snap_based << std::endl;
+
+ s << "kernel:" << std::endl
+ << " version: " << kernel_info_.version << std::endl
+ << " binder: " << std::boolalpha << kernel_info_.binder << std::endl
+ << " ashmem: " << std::boolalpha << kernel_info_.ashmem << std::endl;
+
+ auto print_extensions = [](const std::vector<std::string> &extensions) {
+ std::stringstream s;
+ if (extensions.size() > 0) {
+ s << std::endl;
+ for (const auto &ext : extensions) {
+ if (ext.length() == 0)
+ continue;
+ s << " - " << ext << std::endl;
+ }
+ } else {
+ s << " []" << std::endl;
+ }
+ return s.str();
+ };
+
+ s << "graphics:" << std::endl
+ << " egl:" << std::endl
+ << " vendor: " << graphics_info_.egl_vendor << std::endl
+ << " version: " << graphics_info_.egl_version << std::endl
+ << " extensions:" << print_extensions(graphics_info_.egl_extensions)
+ << " gles2:" << std::endl
+ << " vendor: " << graphics_info_.gles2_vendor << std::endl
+ << " vendor: " << graphics_info_.gles2_version << std::endl
+ << " extensions:" << print_extensions(graphics_info_.gles2_extensions);
+
+ return s.str();
+ }
+
+ private:
+ void collect_cpu_info() {
+#if defined(CPU_FEATURES_ARCH_X86)
+ cpu_info_.arch = "x86";
+
+ const auto info = cpu_features::GetX86Info();
+ if (info.features.aes)
+ cpu_info_.features.push_back("aes");
+ if (info.features.sse4_1)
+ cpu_info_.features.push_back("sse4_1");
+ if (info.features.sse4_2)
+ cpu_info_.features.push_back("sse4_2");
+ if (info.features.avx)
+ cpu_info_.features.push_back("avx");
+ if (info.features.avx2)
+ cpu_info_.features.push_back("avx2");
+
+ char brand_string[49];
+ cpu_features::FillX86BrandString(brand_string);
+ cpu_info_.brand = brand_string;
+#endif
+ }
+
+ void collect_os_info() {
+ os_info_.snap_based = !anbox::utils::get_env_value("SNAP").empty();
+ fs::path path = os_release_path;
+ // If we're running from within a snap the best we can do is to
+ // access the hostfs and read the os-release file from there.
+ if (os_info_.snap_based && fs::exists(host_os_release_path))
+ path = host_os_release_path;
+
+ // Double check that there aren't any permission errors when trying
+ // to access the file (e.g. because of snap confinement)
+ if (fs::exists(path)) {
+ anbox::utils::EnvironmentFile os_release(path);
+ os_info_.name = os_release.value(os_release_name);
+ os_info_.version = os_release.value(os_release_version);
+ }
+ }
+
+ void collect_kernel_info() {
+ if (fs::exists(proc_version_path)) {
+ std::ifstream in(proc_version_path);
+ std::getline(in, kernel_info_.version);
+ }
+
+ kernel_info_.binder = fs::exists(binder_path);
+ kernel_info_.ashmem = fs::exists(ashmem_path);
+ }
+
+ void collect_graphics_info() {
+ auto gl_libs = anbox::graphics::emugl::default_gl_libraries();
+ if (!anbox::graphics::emugl::initialize(gl_libs, nullptr, nullptr)) {
+ return;
+ }
+
+ auto display = s_egl.eglGetDisplay(0);
+ if (display != EGL_NO_DISPLAY) {
+ s_egl.eglInitialize(display, nullptr, nullptr);
+
+ auto egl_safe_get_string = [display](EGLint item) {
+ auto str = s_egl.eglQueryString(display, item);
+ if (!str)
+ return std::string("n/a");
+ return std::string(reinterpret_cast<const char*>(str));
+ };
+
+ graphics_info_.egl_vendor = egl_safe_get_string(EGL_VENDOR);
+ graphics_info_.egl_version = egl_safe_get_string(EGL_VERSION);
+ const auto egl_extensions = egl_safe_get_string(EGL_EXTENSIONS);
+ graphics_info_.egl_extensions = anbox::utils::string_split(egl_extensions, ' ');
+
+ GLint config_attribs[] = {EGL_SURFACE_TYPE, EGL_PBUFFER_BIT,
+ EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT,
+ EGL_NONE};
+
+ EGLConfig config;
+ int n;
+ if (s_egl.eglChooseConfig(display, config_attribs, &config, 1, &n) && n > 0) {
+ GLint attribs[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE};
+ auto context = s_egl.eglCreateContext(display, config, nullptr, attribs);
+ if (context != EGL_NO_CONTEXT) {
+ // We require surfaceless-context support here for now. If eglMakeCurrent fails
+ // glGetString will return null below which we handle correctly.
+ s_egl.eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, context);
+
+ auto gl_safe_get_string = [](GLint item) {
+ auto str = s_gles2.glGetString(item);
+ if (!str)
+ return std::string("n/a");
+ return std::string(reinterpret_cast<const char*>(str));
+ };
+
+ graphics_info_.gles2_vendor = gl_safe_get_string(GL_VENDOR);
+ graphics_info_.gles2_version = gl_safe_get_string(GL_VERSION);
+ const auto gl_extensions = gl_safe_get_string(GL_EXTENSIONS);
+ graphics_info_.gles2_extensions = anbox::utils::string_split(gl_extensions, ' ');
+
+ s_egl.eglMakeCurrent(display, nullptr, nullptr, nullptr);
+ s_egl.eglDestroyContext(display, context);
+ }
+ }
+ }
+ }
+
+ struct {
+ std::string arch;
+ std::string brand;
+ std::vector<std::string> features;
+ } cpu_info_;
+
+ struct {
+ bool snap_based = false;
+ std::string name = "n/a";
+ std::string version = "n/a";
+ } os_info_;
+
+ struct {
+ std::string version = "n/a";
+ bool binder = false;
+ bool ashmem = false;
+ } kernel_info_;
+
+ struct {
+ std::string egl_vendor = "n/a";
+ std::string egl_version = "n/a";
+ std::vector<std::string> egl_extensions;
+ std::string gles2_vendor = "n/a";
+ std::string gles2_version = "n/a";
+ std::vector<std::string> gles2_extensions;
+ } graphics_info_;
+};
+
+std::ostream &operator<<(std::ostream &out, const SystemInformation &info) {
+ out << info.to_text();
+ return out;
+}
+}
+
+anbox::cmds::SystemInfo::SystemInfo()
+ : CommandWithFlagsAndAction{
+ cli::Name{"system-info"}, cli::Usage{"system-info"},
+ cli::Description{"Print various information about the system we're running on"}} {
+ action([](const cli::Command::Context&) {
+ SystemInformation si;
+ std::cout << si;
+ return EXIT_SUCCESS;
+ });
+}