392   if (!D.SysRoot.empty())  in ConstructJob()
393     CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));  in ConstructJob()
2196                                           llvm::StringRef SysRoot) {  in getGCCToolchainDir()  argument
2204   if (!SysRoot.empty())  in getGCCToolchainDir()
2282   StringRef GCCToolchainDir = getGCCToolchainDir(Args, D.SysRoot);  in init()
2290     if (!D.SysRoot.empty()) {  in init()
2291       Prefixes.push_back(D.SysRoot);  in init()
2292       AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);  in init()
2300     if (D.SysRoot.empty()) {  in init()
2302       AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);  in init()
2382     StringRef SysRoot) {  in AddDefaultGCCPrefixes()  argument
2385     Prefixes.push_back(concat(SysRoot, "/boot/system/develop/tools"));  in AddDefaultGCCPrefixes()
2397     std::string PrefixDir = concat(SysRoot, "/usr/gcc");  in AddDefaultGCCPrefixes()
2426   if (SysRoot.empty() && TargetTriple.getOS() == llvm::Triple::Linux &&  in AddDefaultGCCPrefixes()
2446   Prefixes.push_back(concat(SysRoot, "/usr"));  in AddDefaultGCCPrefixes()
2969   if (!D.getVFS().exists(concat(D.SysRoot, GentooConfigDir)))  in ScanGentooConfigs()
2988       D.getVFS().getBufferForFile(concat(D.SysRoot, GentooConfigDir,  in ScanGentooGccConfig()
3001               concat(D.SysRoot, GentooConfigDir, "/" + Line));  in ScanGentooGccConfig()
3034         std::string GentooPath = concat(D.SysRoot, GentooScanPath);  in ScanGentooGccConfig()
3157                                    const std::string &SysRoot,  in AddMultilibPaths()  argument
3217     if (StringRef(LibPath).starts_with(SysRoot))  in AddMultilibPaths()
3223                                     const std::string &SysRoot,  in AddMultiarchPaths()  argument
3277   std::string SysRoot = computeSysRoot();  in addLibCxxIncludePaths()  local
3278   if (SysRoot.empty())  in addLibCxxIncludePaths()
3279     SysRoot = llvm::sys::path::get_separator();  in addLibCxxIncludePaths()
3318   SmallString<128> UsrLocalIncludeDir(SysRoot);  in addLibCxxIncludePaths()
3322   SmallString<128> UsrIncludeDir(SysRoot);  in addLibCxxIncludePaths()