diff options
Diffstat (limited to 'lldb/source/Host/linux/HostInfoLinux.cpp')
| -rw-r--r-- | lldb/source/Host/linux/HostInfoLinux.cpp | 403 |
1 files changed, 182 insertions, 221 deletions
diff --git a/lldb/source/Host/linux/HostInfoLinux.cpp b/lldb/source/Host/linux/HostInfoLinux.cpp index 0d0ba3323d6..0f2ab79224c 100644 --- a/lldb/source/Host/linux/HostInfoLinux.cpp +++ b/lldb/source/Host/linux/HostInfoLinux.cpp @@ -7,8 +7,8 @@ // //===----------------------------------------------------------------------===// -#include "lldb/Core/Log.h" #include "lldb/Host/linux/HostInfoLinux.h" +#include "lldb/Core/Log.h" #include <limits.h> #include <stdio.h> @@ -20,263 +20,224 @@ using namespace lldb_private; -namespace -{ -struct HostInfoLinuxFields -{ - HostInfoLinuxFields() - : m_os_major(0) - , m_os_minor(0) - , m_os_update(0) - { - } +namespace { +struct HostInfoLinuxFields { + HostInfoLinuxFields() : m_os_major(0), m_os_minor(0), m_os_update(0) {} - std::string m_distribution_id; - uint32_t m_os_major; - uint32_t m_os_minor; - uint32_t m_os_update; + std::string m_distribution_id; + uint32_t m_os_major; + uint32_t m_os_minor; + uint32_t m_os_update; }; HostInfoLinuxFields *g_fields = nullptr; } -void -HostInfoLinux::Initialize() -{ - HostInfoPosix::Initialize(); +void HostInfoLinux::Initialize() { + HostInfoPosix::Initialize(); - g_fields = new HostInfoLinuxFields(); + g_fields = new HostInfoLinuxFields(); } -uint32_t -HostInfoLinux::GetMaxThreadNameLength() -{ - return 16; -} +uint32_t HostInfoLinux::GetMaxThreadNameLength() { return 16; } -bool -HostInfoLinux::GetOSVersion(uint32_t &major, uint32_t &minor, uint32_t &update) -{ - static bool success = false; - static std::once_flag g_once_flag; - std::call_once(g_once_flag, []() { - - struct utsname un; - if (uname(&un) == 0) - { - int status = sscanf(un.release, "%u.%u.%u", &g_fields->m_os_major, &g_fields->m_os_minor, &g_fields->m_os_update); - if (status == 3) - success = true; - else - { - // Some kernels omit the update version, so try looking for just "X.Y" and - // set update to 0. - g_fields->m_os_update = 0; - status = sscanf(un.release, "%u.%u", &g_fields->m_os_major, &g_fields->m_os_minor); - if (status == 2) - success = true; - } - } - }); +bool HostInfoLinux::GetOSVersion(uint32_t &major, uint32_t &minor, + uint32_t &update) { + static bool success = false; + static std::once_flag g_once_flag; + std::call_once(g_once_flag, []() { + struct utsname un; + if (uname(&un) == 0) { + int status = sscanf(un.release, "%u.%u.%u", &g_fields->m_os_major, + &g_fields->m_os_minor, &g_fields->m_os_update); + if (status == 3) + success = true; + else { + // Some kernels omit the update version, so try looking for just "X.Y" + // and + // set update to 0. + g_fields->m_os_update = 0; + status = sscanf(un.release, "%u.%u", &g_fields->m_os_major, + &g_fields->m_os_minor); + if (status == 2) + success = true; + } + } + }); - major = g_fields->m_os_major; - minor = g_fields->m_os_minor; - update = g_fields->m_os_update; - return success; + major = g_fields->m_os_major; + minor = g_fields->m_os_minor; + update = g_fields->m_os_update; + return success; } -bool -HostInfoLinux::GetOSBuildString(std::string &s) -{ - struct utsname un; - ::memset(&un, 0, sizeof(utsname)); - s.clear(); +bool HostInfoLinux::GetOSBuildString(std::string &s) { + struct utsname un; + ::memset(&un, 0, sizeof(utsname)); + s.clear(); - if (uname(&un) < 0) - return false; + if (uname(&un) < 0) + return false; - s.assign(un.release); - return true; + s.assign(un.release); + return true; } -bool -HostInfoLinux::GetOSKernelDescription(std::string &s) -{ - struct utsname un; +bool HostInfoLinux::GetOSKernelDescription(std::string &s) { + struct utsname un; - ::memset(&un, 0, sizeof(utsname)); - s.clear(); + ::memset(&un, 0, sizeof(utsname)); + s.clear(); - if (uname(&un) < 0) - return false; + if (uname(&un) < 0) + return false; - s.assign(un.version); - return true; + s.assign(un.version); + return true; } -llvm::StringRef -HostInfoLinux::GetDistributionId() -{ - // Try to run 'lbs_release -i', and use that response - // for the distribution id. - static std::once_flag g_once_flag; - std::call_once(g_once_flag, []() { - - Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST)); +llvm::StringRef HostInfoLinux::GetDistributionId() { + // Try to run 'lbs_release -i', and use that response + // for the distribution id. + static std::once_flag g_once_flag; + std::call_once(g_once_flag, []() { + + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_HOST)); + if (log) + log->Printf("attempting to determine Linux distribution..."); + + // check if the lsb_release command exists at one of the + // following paths + const char *const exe_paths[] = {"/bin/lsb_release", + "/usr/bin/lsb_release"}; + + for (size_t exe_index = 0; + exe_index < sizeof(exe_paths) / sizeof(exe_paths[0]); ++exe_index) { + const char *const get_distribution_info_exe = exe_paths[exe_index]; + if (access(get_distribution_info_exe, F_OK)) { + // this exe doesn't exist, move on to next exe if (log) - log->Printf("attempting to determine Linux distribution..."); - - // check if the lsb_release command exists at one of the - // following paths - const char *const exe_paths[] = {"/bin/lsb_release", "/usr/bin/lsb_release"}; - - for (size_t exe_index = 0; exe_index < sizeof(exe_paths) / sizeof(exe_paths[0]); ++exe_index) - { - const char *const get_distribution_info_exe = exe_paths[exe_index]; - if (access(get_distribution_info_exe, F_OK)) - { - // this exe doesn't exist, move on to next exe - if (log) - log->Printf("executable doesn't exist: %s", get_distribution_info_exe); - continue; - } - - // execute the distribution-retrieval command, read output - std::string get_distribution_id_command(get_distribution_info_exe); - get_distribution_id_command += " -i"; - - FILE *file = popen(get_distribution_id_command.c_str(), "r"); - if (!file) - { - if (log) - log->Printf("failed to run command: \"%s\", cannot retrieve " - "platform information", - get_distribution_id_command.c_str()); - break; - } - - // retrieve the distribution id string. - char distribution_id[256] = {'\0'}; - if (fgets(distribution_id, sizeof(distribution_id) - 1, file) != NULL) - { - if (log) - log->Printf("distribution id command returned \"%s\"", distribution_id); - - const char *const distributor_id_key = "Distributor ID:\t"; - if (strstr(distribution_id, distributor_id_key)) - { - // strip newlines - std::string id_string(distribution_id + strlen(distributor_id_key)); - id_string.erase(std::remove(id_string.begin(), id_string.end(), '\n'), id_string.end()); - - // lower case it and convert whitespace to underscores - std::transform(id_string.begin(), id_string.end(), id_string.begin(), [](char ch) - { - return tolower(isspace(ch) ? '_' : ch); - }); - - g_fields->m_distribution_id = id_string; - if (log) - log->Printf("distribution id set to \"%s\"", g_fields->m_distribution_id.c_str()); - } - else - { - if (log) - log->Printf("failed to find \"%s\" field in \"%s\"", distributor_id_key, distribution_id); - } - } - else - { - if (log) - log->Printf("failed to retrieve distribution id, \"%s\" returned no" - " lines", - get_distribution_id_command.c_str()); - } - - // clean up the file - pclose(file); - } - }); + log->Printf("executable doesn't exist: %s", + get_distribution_info_exe); + continue; + } - return g_fields->m_distribution_id.c_str(); -} + // execute the distribution-retrieval command, read output + std::string get_distribution_id_command(get_distribution_info_exe); + get_distribution_id_command += " -i"; -FileSpec -HostInfoLinux::GetProgramFileSpec() -{ - static FileSpec g_program_filespec; - - if (!g_program_filespec) - { - char exe_path[PATH_MAX]; - ssize_t len = readlink("/proc/self/exe", exe_path, sizeof(exe_path) - 1); - if (len > 0) - { - exe_path[len] = 0; - g_program_filespec.SetFile(exe_path, false); + FILE *file = popen(get_distribution_id_command.c_str(), "r"); + if (!file) { + if (log) + log->Printf("failed to run command: \"%s\", cannot retrieve " + "platform information", + get_distribution_id_command.c_str()); + break; + } + + // retrieve the distribution id string. + char distribution_id[256] = {'\0'}; + if (fgets(distribution_id, sizeof(distribution_id) - 1, file) != NULL) { + if (log) + log->Printf("distribution id command returned \"%s\"", + distribution_id); + + const char *const distributor_id_key = "Distributor ID:\t"; + if (strstr(distribution_id, distributor_id_key)) { + // strip newlines + std::string id_string(distribution_id + strlen(distributor_id_key)); + id_string.erase(std::remove(id_string.begin(), id_string.end(), '\n'), + id_string.end()); + + // lower case it and convert whitespace to underscores + std::transform( + id_string.begin(), id_string.end(), id_string.begin(), + [](char ch) { return tolower(isspace(ch) ? '_' : ch); }); + + g_fields->m_distribution_id = id_string; + if (log) + log->Printf("distribution id set to \"%s\"", + g_fields->m_distribution_id.c_str()); + } else { + if (log) + log->Printf("failed to find \"%s\" field in \"%s\"", + distributor_id_key, distribution_id); } + } else { + if (log) + log->Printf("failed to retrieve distribution id, \"%s\" returned no" + " lines", + get_distribution_id_command.c_str()); + } + + // clean up the file + pclose(file); } + }); - return g_program_filespec; + return g_fields->m_distribution_id.c_str(); } -bool -HostInfoLinux::ComputeSupportExeDirectory(FileSpec &file_spec) -{ - if (HostInfoPosix::ComputeSupportExeDirectory(file_spec) && - file_spec.IsAbsolute() && - file_spec.Exists()) - return true; - file_spec.GetDirectory() = GetProgramFileSpec().GetDirectory(); - return !file_spec.GetDirectory().IsEmpty(); -} +FileSpec HostInfoLinux::GetProgramFileSpec() { + static FileSpec g_program_filespec; -bool -HostInfoLinux::ComputeSystemPluginsDirectory(FileSpec &file_spec) -{ - FileSpec temp_file("/usr/lib/lldb/plugins", true); - file_spec.GetDirectory().SetCString(temp_file.GetPath().c_str()); - return true; + if (!g_program_filespec) { + char exe_path[PATH_MAX]; + ssize_t len = readlink("/proc/self/exe", exe_path, sizeof(exe_path) - 1); + if (len > 0) { + exe_path[len] = 0; + g_program_filespec.SetFile(exe_path, false); + } + } + + return g_program_filespec; } -bool -HostInfoLinux::ComputeUserPluginsDirectory(FileSpec &file_spec) -{ - // XDG Base Directory Specification - // http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html - // If XDG_DATA_HOME exists, use that, otherwise use ~/.local/share/lldb. - const char *xdg_data_home = getenv("XDG_DATA_HOME"); - if (xdg_data_home && xdg_data_home[0]) - { - std::string user_plugin_dir(xdg_data_home); - user_plugin_dir += "/lldb"; - file_spec.GetDirectory().SetCString(user_plugin_dir.c_str()); - } - else - file_spec.GetDirectory().SetCString("~/.local/share/lldb"); +bool HostInfoLinux::ComputeSupportExeDirectory(FileSpec &file_spec) { + if (HostInfoPosix::ComputeSupportExeDirectory(file_spec) && + file_spec.IsAbsolute() && file_spec.Exists()) return true; + file_spec.GetDirectory() = GetProgramFileSpec().GetDirectory(); + return !file_spec.GetDirectory().IsEmpty(); } -void -HostInfoLinux::ComputeHostArchitectureSupport(ArchSpec &arch_32, ArchSpec &arch_64) -{ - HostInfoPosix::ComputeHostArchitectureSupport(arch_32, arch_64); +bool HostInfoLinux::ComputeSystemPluginsDirectory(FileSpec &file_spec) { + FileSpec temp_file("/usr/lib/lldb/plugins", true); + file_spec.GetDirectory().SetCString(temp_file.GetPath().c_str()); + return true; +} - const char *distribution_id = GetDistributionId().data(); +bool HostInfoLinux::ComputeUserPluginsDirectory(FileSpec &file_spec) { + // XDG Base Directory Specification + // http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html + // If XDG_DATA_HOME exists, use that, otherwise use ~/.local/share/lldb. + const char *xdg_data_home = getenv("XDG_DATA_HOME"); + if (xdg_data_home && xdg_data_home[0]) { + std::string user_plugin_dir(xdg_data_home); + user_plugin_dir += "/lldb"; + file_spec.GetDirectory().SetCString(user_plugin_dir.c_str()); + } else + file_spec.GetDirectory().SetCString("~/.local/share/lldb"); + return true; +} - // On Linux, "unknown" in the vendor slot isn't what we want for the default - // triple. It's probably an artifact of config.guess. - if (arch_32.IsValid()) - { - arch_32.SetDistributionId(distribution_id); - if (arch_32.GetTriple().getVendor() == llvm::Triple::UnknownVendor) - arch_32.GetTriple().setVendorName(llvm::StringRef()); - } - if (arch_64.IsValid()) - { - arch_64.SetDistributionId(distribution_id); - if (arch_64.GetTriple().getVendor() == llvm::Triple::UnknownVendor) - arch_64.GetTriple().setVendorName(llvm::StringRef()); - } +void HostInfoLinux::ComputeHostArchitectureSupport(ArchSpec &arch_32, + ArchSpec &arch_64) { + HostInfoPosix::ComputeHostArchitectureSupport(arch_32, arch_64); + + const char *distribution_id = GetDistributionId().data(); + + // On Linux, "unknown" in the vendor slot isn't what we want for the default + // triple. It's probably an artifact of config.guess. + if (arch_32.IsValid()) { + arch_32.SetDistributionId(distribution_id); + if (arch_32.GetTriple().getVendor() == llvm::Triple::UnknownVendor) + arch_32.GetTriple().setVendorName(llvm::StringRef()); + } + if (arch_64.IsValid()) { + arch_64.SetDistributionId(distribution_id); + if (arch_64.GetTriple().getVendor() == llvm::Triple::UnknownVendor) + arch_64.GetTriple().setVendorName(llvm::StringRef()); + } } |
