| // Copyright (c) 2015, Matt Godbolt |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // * Redistributions of source code must retain the above copyright notice, |
| // this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above copyright |
| // notice, this list of conditions and the following disclaimer in the |
| // documentation and/or other materials provided with the distribution. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| // POSSIBILITY OF SUCH DAMAGE. |
| |
| const temp = require('temp'), |
| path = require('path'), |
| fs = require('fs-extra'), |
| denodeify = require('denodeify'), |
| AsmParser = require('./asm-parser'), |
| utils = require('./utils'), |
| _ = require('underscore'), |
| exec = require('./exec'), |
| logger = require('./logger').logger, |
| compilerOptInfo = require("compiler-opt-info"), |
| argumentParsers = require("./compilers/argument-parsers"), |
| cfg = require('./cfg'), |
| languages = require('./languages').list; |
| |
| class BaseCompiler { |
| constructor(compilerInfo, env) { |
| // Information about our compiler |
| this.compiler = compilerInfo; |
| this.lang = languages[compilerInfo.lang]; |
| if (!this.lang) { |
| throw new Error(`Missing language info for ${compilerInfo.lang}`); |
| } |
| this.compileFilename = `example${this.lang.extensions[0]}`; |
| this.env = env; |
| // Partial application of compilerProps with the proper language id applied to it |
| this.compilerProps = _.partial(this.env.compilerProps, this.lang.id); |
| this.compiler.supportsIntel = !!this.compiler.intelAsm; |
| |
| if (!this.compiler.options) this.compiler.options = ""; |
| if (!this.compiler.optArg) this.compiler.optArg = ""; |
| if (!this.compiler.supportsOptOutput) this.compiler.supportsOptOutput = false; |
| |
| if (!this.compiler.disabledFilters) |
| this.compiler.disabledFilters = []; |
| else if (typeof this.compiler.disabledFilters === "string") |
| this.compiler.disabledFilters = this.compiler.disabledFilters.split(','); |
| |
| this.writeFile = denodeify(fs.writeFile); |
| this.readFile = denodeify(fs.readFile); |
| this.stat = denodeify(fs.stat); |
| this.asm = new AsmParser(this.compilerProps); |
| |
| this.possibleTools = _.values(compilerInfo.tools); |
| this.possibleLibs = compilerInfo.libs; |
| } |
| |
| newTempDir() { |
| return new Promise((resolve, reject) => { |
| temp.mkdir({prefix: 'compiler-explorer-compiler', dir: process.env.tmpDir}, (err, dirPath) => { |
| if (err) |
| reject(`Unable to open temp file: ${err}`); |
| else |
| resolve(dirPath); |
| }); |
| }); |
| } |
| |
| optOutputRequested(options) { |
| return options.some(x => x === "-fsave-optimization-record"); |
| } |
| |
| getRemote() { |
| if (this.compiler.exe === null && this.compiler.remote) |
| return this.compiler.remote; |
| return false; |
| } |
| |
| exec(compiler, args, options) { |
| // Here only so can be overridden by compiler implementations. |
| return exec.execute(compiler, args, options); |
| } |
| |
| getDefaultExecOptions() { |
| return { |
| timeoutMs: this.env.ceProps("compileTimeoutMs", 7500), |
| maxErrorOutput: this.env.ceProps("max-error-output", 5000), |
| env: this.env.getEnv(this.compiler.needsMulti), |
| wrapper: this.compilerProps("compiler-wrapper") |
| }; |
| } |
| |
| runCompiler(compiler, options, inputFilename, execOptions) { |
| if (!execOptions) { |
| execOptions = this.getDefaultExecOptions(); |
| } |
| |
| return this.exec(compiler, options, execOptions).then(result => { |
| result.inputFilename = inputFilename; |
| result.stdout = utils.parseOutput(result.stdout, inputFilename); |
| result.stderr = utils.parseOutput(result.stderr, inputFilename); |
| return result; |
| }); |
| } |
| |
| supportsObjdump() { |
| return this.compiler.objdumper !== ""; |
| } |
| |
| objdump(outputFilename, result, maxSize, intelAsm, demangle) { |
| let args = ["-d", outputFilename, "-l", "--insn-width=16"]; |
| if (demangle) args = args.concat("-C"); |
| if (intelAsm) args = args.concat(["-M", "intel"]); |
| return this.exec(this.compiler.objdumper, args, {maxOutput: maxSize}) |
| .then(objResult => { |
| result.asm = objResult.stdout; |
| if (objResult.code !== 0) { |
| result.asm = `<No output: objdump returned ${objResult.code}>`; |
| } |
| return result; |
| }); |
| } |
| |
| execBinary(executable, maxSize, executeParameters) { |
| return exec.sandbox(executable, executeParameters, { |
| maxOutput: maxSize, |
| timeoutMs: 2000 |
| }) // TODO make config |
| .then(execResult => { |
| execResult.stdout = utils.parseOutput(execResult.stdout); |
| execResult.stderr = utils.parseOutput(execResult.stderr); |
| return execResult; |
| }).catch(err => { |
| // TODO: is this the best way? Perhaps failures in sandbox shouldn't reject |
| // with "results", but instead should play on? |
| return { |
| stdout: err.stdout ? utils.parseOutput(err.stdout) : [], |
| stderr: err.stderr ? utils.parseOutput(err.stderr) : [], |
| code: err.code !== undefined ? err.code : -1 |
| }; |
| }); |
| } |
| |
| filename(fn) { |
| return fn; |
| } |
| |
| optionsForFilter(filters, outputFilename) { |
| let options = ['-g', '-o', this.filename(outputFilename)]; |
| if (this.compiler.intelAsm && filters.intel && !filters.binary) { |
| options = options.concat(this.compiler.intelAsm.split(" ")); |
| } |
| if (!filters.binary) options = options.concat('-S'); |
| return options; |
| } |
| |
| prepareArguments(userOptions, filters, backendOptions, inputFilename, outputFilename) { |
| let options = this.optionsForFilter(filters, outputFilename, userOptions); |
| backendOptions = backendOptions || {}; |
| |
| if (this.compiler.options) { |
| options = options.concat(this.compiler.options.split(" ")); |
| } |
| |
| if (this.compiler.supportsOptOutput && backendOptions.produceOptInfo) { |
| options = options.concat(this.compiler.optArg); |
| } |
| |
| userOptions = this.filterUserOptions(userOptions); |
| return options.concat(userOptions || []).concat([this.filename(inputFilename)]); |
| } |
| |
| |
| filterUserOptions(userOptions) { |
| return userOptions; |
| } |
| |
| generateAST(inputFilename, options) { |
| // These options make Clang produce an AST dump |
| let newOptions = _.filter(options, option => option !== '-fcolor-diagnostics') |
| .concat(["-Xclang", "-ast-dump", "-fsyntax-only"]); |
| |
| let execOptions = this.getDefaultExecOptions(); |
| // A higher max output is needed for when the user includes headers |
| execOptions.maxOutput = 1024 * 1024 * 1024; |
| |
| return this.runCompiler(this.compiler.exe, newOptions, this.filename(inputFilename), execOptions) |
| .then(this.processAstOutput); |
| } |
| |
| getOutputFilename(dirPath, outputFilebase) { |
| // NB keep lower case as ldc compiler `tolower`s the output name |
| return path.join(dirPath, `${outputFilebase}.s`); |
| } |
| |
| getExecutableFilename(dirPath, outputFilebase) { |
| return this.getOutputFilename(dirPath, outputFilebase); |
| } |
| |
| generateGccDump(inputFilename, options, gccDumpOptions) { |
| // Maybe we should not force any RTL dump and let user hand-pick what he needs |
| const addOpts = []; |
| /* if not defined, consider it true */ |
| |
| if (gccDumpOptions.treeDump !== false) { |
| addOpts.push("-fdump-tree-all"); |
| } |
| if (gccDumpOptions.rtlDump !== false) { |
| addOpts.push("-fdump-rtl-all"); |
| } |
| |
| const newOptions = options.concat(addOpts); |
| |
| const execOptions = this.getDefaultExecOptions(); |
| // A higher max output is needed for when the user includes headers |
| execOptions.maxOutput = 1024 * 1024 * 1024; |
| |
| return this.runCompiler(this.compiler.exe, newOptions, this.filename(inputFilename), execOptions) |
| .then(result => this.processGccDumpOutput(gccDumpOptions, result)); |
| } |
| |
| checkOutputFileAndDoPostProcess(asmResult, outputFilename, filters) { |
| return this.stat(outputFilename) |
| .then(stat => asmResult.asmSize = stat.size) |
| .catch(() => { |
| }) |
| .then(() => this.postProcess(asmResult, outputFilename, filters)); |
| } |
| |
| runToolsOfType(sourcefile, tools, type, compilerExe, outputFilename, options, filters, asm) { |
| let tooling = []; |
| if (tools) { |
| tools.forEach((tool) => { |
| const matches = this.possibleTools.filter(possibleTool => { |
| return possibleTool.getId() === tool.id && |
| possibleTool.getType() === type; |
| }); |
| |
| if (matches[0]) { |
| const toolPromise = matches[0].runTool(sourcefile, tool.args, |
| compilerExe, outputFilename, options, filters, asm); |
| tooling.push(toolPromise); |
| } |
| }); |
| } |
| |
| return tooling; |
| } |
| |
| buildExecutable(compiler, options, inputFilename, execOptions) { |
| // default implementation, but should be overridden by compilers |
| return this.runCompiler(compiler, options, inputFilename, execOptions); |
| } |
| |
| getOrBuildExecutable(key) { |
| // todo: ask cache for executable if it already exists |
| |
| return this.newTempDir() |
| .then(dirPath => { |
| const inputFilename = path.join(dirPath, this.compileFilename); |
| return this.writeFile(inputFilename, key.source).then(() => ({ |
| inputFilename: inputFilename, |
| dirPath: dirPath |
| })); |
| }).then((dirResult) => { |
| const outputFilebase = "output"; |
| const outputFilename = this.getExecutableFilename(dirResult.dirPath, outputFilebase); |
| |
| let buildFilters = Object.assign({}, key.filters); |
| buildFilters.binary = true; |
| buildFilters.execute = true; |
| |
| const compilerArguments = _.compact( |
| this.prepareArguments(key.options, buildFilters, key.backendOptions, |
| dirResult.inputFilename, outputFilename) |
| ); |
| |
| return this.buildExecutable(key.compiler.exe, compilerArguments, |
| dirResult.inputFilename, this.getDefaultExecOptions()).then(result => { |
| result.executableFilename = outputFilename; |
| return result; |
| }); |
| }); |
| } |
| |
| runExecutable(executable, executeParameters) { |
| const maxExecOutputSize = this.env.ceProps("max-executable-output-size", 32 * 1024); |
| |
| return this.execBinary(executable, maxExecOutputSize, executeParameters); |
| } |
| |
| handleExecution(key, executeParameters) { |
| return this.getOrBuildExecutable(key) |
| .then(buildResult => { |
| if (buildResult.code !== 0) { |
| return buildResult; |
| } else { |
| return this.runExecutable(buildResult.executableFilename, |
| executeParameters); |
| } |
| }); |
| } |
| |
| getCacheKey(source, options, backendOptions, filters, tools) { |
| return {compiler: this.compiler, source, options, backendOptions, filters, tools}; |
| } |
| |
| compile(source, options, backendOptions, filters, bypassCache, tools) { |
| const optionsError = this.checkOptions(options); |
| if (optionsError) return Promise.reject(optionsError); |
| const sourceError = this.checkSource(source); |
| if (sourceError) return Promise.reject(sourceError); |
| |
| // Don't run binary for unsupported compilers, even if we're asked. |
| if (filters.binary && !this.compiler.supportsBinary) { |
| delete filters.binary; |
| } |
| |
| const executeParameters = options.executeParameters || []; |
| delete options.executeParameters; |
| |
| const key = this.getCacheKey(source, options, backendOptions, filters, tools); |
| |
| const doExecute = filters.execute; |
| filters = Object.assign({}, filters); |
| filters.execute = false; |
| |
| const cacheGet = bypassCache ? Promise.resolve(null) : this.env.cacheGet(key); |
| return cacheGet |
| .then((result) => { |
| if (result) { |
| if (doExecute) { |
| return this.handleExecution(key, executeParameters).then((execResult) => { |
| result.execResult = execResult; |
| |
| return result; |
| }); |
| } |
| |
| return result; |
| } |
| |
| source = this.preProcess(source); |
| if (filters.binary && !source.match(this.compilerProps("stubRe"))) { |
| source += "\n" + this.compilerProps("stubText") + "\n"; |
| } |
| return this.env.enqueue(() => { |
| const tempFileAndDirPromise = this.newTempDir() |
| .then(dirPath => { |
| const inputFilename = path.join(dirPath, this.compileFilename); |
| return this.writeFile(inputFilename, source).then(() => ({ |
| inputFilename: inputFilename, |
| dirPath: dirPath |
| })); |
| }); |
| |
| const compileToAsmPromise = tempFileAndDirPromise.then(info => { |
| const inputFilename = info.inputFilename; |
| const inputFilenameSafe = this.filename(inputFilename); |
| const dirPath = info.dirPath; |
| const outputFilebase = "output"; |
| const outputFilename = this.getOutputFilename(dirPath, outputFilebase); |
| |
| options = _.compact( |
| this.prepareArguments(options, filters, backendOptions, inputFilename, outputFilename) |
| ); |
| |
| const toolsPromise = this.runToolsOfType( |
| inputFilename, tools, "independent", |
| this.compiler.exe, outputFilename, options, filters); |
| |
| const execOptions = this.getDefaultExecOptions(); |
| |
| const asmPromise = this.runCompiler(this.compiler.exe, options, inputFilenameSafe, execOptions); |
| |
| let astPromise; |
| if (backendOptions && backendOptions.produceAst && this.compiler.supportsAstView) { |
| astPromise = this.generateAST(inputFilename, options); |
| } else { |
| astPromise = Promise.resolve(""); |
| } |
| |
| let gccDumpPromise; |
| if (backendOptions && backendOptions.produceGccDump && backendOptions.produceGccDump.opened && |
| this.compiler.supportsGccDump) { |
| |
| gccDumpPromise = this.generateGccDump( |
| inputFilename, options, backendOptions.produceGccDump); |
| } |
| else { |
| gccDumpPromise = Promise.resolve(""); |
| } |
| |
| return Promise.all([asmPromise, astPromise, gccDumpPromise, Promise.all(toolsPromise)]) |
| .then(([asmResult, astResult, gccDumpResult, toolsPromise]) => { |
| asmResult.dirPath = dirPath; |
| asmResult.compilationOptions = options; |
| // Here before the check to ensure dump reports even on failure cases |
| if (this.compiler.supportsGccDump && gccDumpResult) { |
| asmResult.gccDumpOutput = gccDumpResult; |
| } |
| |
| asmResult.tools = toolsPromise; |
| |
| if (asmResult.code !== 0) { |
| asmResult.asm = "<Compilation failed>"; |
| return asmResult; |
| } |
| asmResult.hasOptOutput = false; |
| if (this.compiler.supportsOptOutput && this.optOutputRequested(options)) { |
| const optPath = path.join(dirPath, `${outputFilebase}.opt.yaml`); |
| if (fs.existsSync(optPath)) { |
| asmResult.hasOptOutput = true; |
| asmResult.optPath = optPath; |
| } |
| } |
| if (astResult) { |
| asmResult.hasAstOutput = true; |
| asmResult.astOutput = astResult; |
| } |
| |
| return this.checkOutputFileAndDoPostProcess(asmResult, outputFilename, filters); |
| }); |
| }); |
| |
| let executionPromise; |
| |
| return compileToAsmPromise |
| .then(results => { |
| let optOutput; |
| let result; |
| if (results.length) { |
| result = results[0]; |
| optOutput = results[1]; |
| } else { |
| result = results; |
| } |
| if (result.hasOptOutput) { |
| delete result.optPath; |
| result.optOutput = optOutput; |
| } |
| return result; |
| }) |
| .then(result => { |
| if (doExecute) { |
| executionPromise = this.handleExecution(key, executeParameters); |
| } else { |
| executionPromise = Promise.resolve(false); |
| } |
| return result; |
| }) |
| .then(result => { |
| const outputFilebase = "output"; |
| const outputFilename = this.getOutputFilename(result.dirPath, outputFilebase); |
| |
| const postToolsPromise = this.runToolsOfType( |
| result.inputFilename, tools, "postcompilation", |
| this.compiler.exe, outputFilename, options, filters, result.asm); |
| |
| return Promise.all([Promise.all(postToolsPromise)]).then(([postToolsResult]) => { |
| result.tools = _.union(result.tools, postToolsResult); |
| |
| return result; |
| }); |
| }) |
| .then(result => { |
| if (result.dirPath) { |
| fs.remove(result.dirPath); |
| result.dirPath = undefined; |
| } |
| if (result.okToCache) { |
| result.asm = this.asm.process(result.asm, filters); |
| } else { |
| result.asm = [{text: result.asm}]; |
| } |
| return result; |
| }) |
| .then(result => filters.demangle ? this.postProcessAsm(result, filters) : result) |
| .then(result => { |
| if (this.compiler.supportsCfg && backendOptions && backendOptions.produceCfg) { |
| result.cfg = cfg.generateStructure(this.compiler.version, result.asm); |
| } |
| return result; |
| }) |
| .then(result => { |
| if (result.okToCache) { |
| this.env.cachePut(key, result); |
| } |
| |
| return Promise.all([executionPromise]).then(([executionResult]) => { |
| if (executionResult) { |
| result.execResult = executionResult; |
| } |
| |
| return result; |
| }); |
| }); |
| }); |
| }); |
| } |
| |
| postProcessAsm(result) { |
| if (!result.okToCache) return result; |
| const demanglerExe = this.compiler.demangler; |
| if (!demanglerExe) return result; |
| |
| const demanglerClass = require(this.compiler.demanglerClassFile).Demangler; |
| |
| const demangler = new demanglerClass(demanglerExe, this); |
| return demangler.process(result); |
| } |
| |
| processOptOutput(hasOptOutput, optPath) { |
| let output = []; |
| return new Promise(resolve => { |
| fs.createReadStream(optPath, {encoding: "utf-8"}) |
| .pipe(new compilerOptInfo.LLVMOptTransformer()) |
| .on("data", opt => { |
| if (opt.DebugLoc && opt.DebugLoc.File && opt.DebugLoc.File.indexOf(this.compileFilename) > -1) { |
| output.push(opt); |
| } |
| }) |
| .on("end", () => { |
| if (this.compiler.demangler) { |
| const result = JSON.stringify(output, null, 4); |
| this.exec(this.compiler.demangler, ["-n", "-p"], {input: result}) |
| .then(demangleResult => resolve(JSON.parse(demangleResult.stdout))) |
| .catch(exception => { |
| logger.warn(`Caught exception ${exception} during opt demangle parsing`); |
| resolve(output); |
| }); |
| } else { |
| resolve(output); |
| } |
| }); |
| }); |
| } |
| |
| couldSupportASTDump(version) { |
| const versionRegex = /version (\d.\d+)/; |
| const versionMatch = versionRegex.exec(version); |
| |
| if (versionMatch) { |
| const versionNum = parseFloat(versionMatch[1]); |
| return version.toLowerCase().indexOf("clang") > -1 && versionNum >= 3.3; |
| } |
| |
| return false; |
| } |
| |
| isCfgCompiler(compilerVersion) { |
| return compilerVersion.includes("clang") || |
| compilerVersion.indexOf("g++") === 0 || |
| compilerVersion.indexOf("gdc") === 0; |
| } |
| |
| processAstOutput(output) { |
| output = output.stdout; |
| output = output.map(x => x.text); |
| |
| // Top level decls start with |- or `- |
| const topLevelRegex = /^([|`])-/; |
| |
| // Refers to the user's source file rather than a system header |
| const sourceRegex = /<source>/g; |
| |
| // Refers to whatever the most recent file specified was |
| const lineRegex = /<line:/; |
| |
| let mostRecentIsSource = false; |
| |
| // Remove all AST nodes which aren't directly from the user's source code |
| for (let i = 0; i < output.length; ++i) { |
| if (output[i].match(topLevelRegex)) { |
| if (output[i].match(lineRegex) && mostRecentIsSource) { |
| //do nothing |
| } |
| // This is a system header or implicit definition, |
| // remove everything up to the next top level decl |
| else if (!output[i].match(sourceRegex)) { |
| // Top level decls with invalid sloc as the file don't change the most recent file |
| let slocRegex = /<<invalid sloc>>/; |
| if (!output[i].match(slocRegex)) { |
| mostRecentIsSource = false; |
| } |
| |
| let spliceMax = i + 1; |
| while (output[spliceMax] && !output[spliceMax].match(topLevelRegex)) { |
| spliceMax++; |
| } |
| output.splice(i, spliceMax - i); |
| --i; |
| } |
| else { |
| mostRecentIsSource = true; |
| } |
| } |
| } |
| |
| output = output.join('\n'); |
| |
| // Filter out the symbol addresses |
| const addressRegex = /^([^A-Za-z]*[A-Za-z]+) 0x[a-z0-9]+/mg; |
| output = output.replace(addressRegex, '$1'); |
| |
| // Filter out <invalid sloc> and <<invalid sloc>> |
| let slocRegex = / ?<?<invalid sloc>>?/g; |
| output = output.replace(slocRegex, ''); |
| |
| // Unify file references |
| output = output.replace(sourceRegex, 'line'); |
| |
| return output; |
| } |
| |
| processGccDumpOutput(opts, result) { |
| const rootDir = path.dirname(result.inputFilename); |
| const allFiles = fs.readdirSync(rootDir); |
| const base = path.basename(result.inputFilename); |
| |
| if (opts.treeDump === false && opts.rtlDump === false) { |
| return { |
| all: [], |
| selectedPass: "", |
| currentPassOutput: 'Nothing selected for dump:\nselect at least one of Tree/RTL filter', |
| syntaxHighlight: false |
| }; |
| } |
| |
| const allPasses = []; |
| |
| for (let i in allFiles) { |
| const pass_str_idx = allFiles[i].indexOf(`${base}.`); |
| if (pass_str_idx !== -1) { |
| allPasses.push(allFiles[i].substring(base.length + 1)); |
| } |
| } |
| |
| const output = { |
| all: allPasses, |
| selectedPass: opts.pass, |
| currentPassOutput: '<No pass selected>', |
| syntaxHighlight: false |
| }; |
| |
| if (opts.pass) { |
| const passDump = `${result.inputFilename}.${opts.pass}`; |
| |
| if (fs.existsSync(passDump) && fs.statSync(passDump).isFile()) { |
| output.currentPassOutput = fs.readFileSync(passDump, 'utf-8'); |
| if (output.currentPassOutput.match(/^\s*$/)) { |
| output.currentPassOutput = 'File for selected pass is empty.'; |
| } else { |
| output.syntaxHighlight = true; |
| } |
| } else { |
| // most probably filter has changed and the request is outdated. |
| output.currentPassOutput = `Pass '${output.selectedPass}' was requested |
| but is not valid anymore with current filters. |
| Please select another pass or change filters.`; |
| output.selectedPass = ""; |
| } |
| } |
| |
| return output; |
| } |
| |
| execPostProcess(result, postProcesses, outputFilename, maxSize) { |
| const postCommand = `cat "${outputFilename}" | ${postProcesses.join(" | ")}`; |
| return this.exec("bash", ["-c", postCommand], {maxOutput: maxSize}) |
| .then(postResult => this.handlePostProcessResult(result, postResult)); |
| } |
| |
| preProcess(source) { |
| return source; |
| } |
| |
| postProcess(result, outputFilename, filters) { |
| const postProcess = _.compact(this.compiler.postProcess); |
| const maxSize = this.env.ceProps("max-asm-size", 8 * 1024 * 1024); |
| let optPromise, asmPromise; |
| if (result.hasOptOutput) { |
| optPromise = this.processOptOutput(result.hasOptOutput, result.optPath); |
| } else { |
| optPromise = Promise.resolve(""); |
| } |
| if (filters.binary && this.supportsObjdump()) { |
| asmPromise = this.objdump(outputFilename, result, maxSize, filters.intel, filters.demangle); |
| } else { |
| asmPromise = (() => { |
| if (result.asmSize === undefined) { |
| result.asm = "<No output file>"; |
| return Promise.resolve(result); |
| } |
| if (result.asmSize >= maxSize) { |
| result.asm = `<No output: generated assembly was too large (${result.asmSize} > ${maxSize} bytes)>`; |
| return Promise.resolve(result); |
| } |
| if (postProcess.length) { |
| return this.execPostProcess(result, postProcess, outputFilename, maxSize); |
| } else { |
| return this.readFile(outputFilename).then(contents => { |
| result.asm = contents.toString(); |
| return Promise.resolve(result); |
| }); |
| } |
| })(); |
| } |
| |
| return Promise.all([asmPromise, optPromise]); |
| } |
| |
| handlePostProcessResult(result, postResult) { |
| result.asm = postResult.stdout; |
| if (postResult.code !== 0) { |
| result.asm = `<Error during post processing: ${postResult.code}>`; |
| logger.error("Error during post-processing", result); |
| } |
| return result; |
| } |
| |
| checkOptions(options) { |
| const error = this.env.findBadOptions(options); |
| if (error.length > 0) return `Bad options: ${error.join(", ")}`; |
| return null; |
| } |
| |
| // This check for arbitrary user-controlled preprocessor inclusions |
| // can be circumvented in more than one way. The goal here is to respond |
| // to simple attempts with a clear diagnostic; the service still needs to |
| // assume that malicious actors can make the compiler open arbitrary files. |
| checkSource(source) { |
| const re = /^\s*#\s*i(nclude|mport)(_next)?\s+["<](\/|.*\.\.)[">]/; |
| const failed = []; |
| utils.splitLines(source).forEach((line, index) => { |
| if (line.match(re)) { |
| failed.push(`<stdin>:${index + 1}:1: no absolute or relative includes please`); |
| } |
| }); |
| if (failed.length > 0) return failed.join("\n"); |
| return null; |
| } |
| |
| getArgumentParser() { |
| let exe = this.compiler.exe.toLowerCase(); |
| if (exe.indexOf("clang") >= 0) { // check this first as "clang++" matches "g++" |
| return argumentParsers.Clang; |
| } else if (exe.indexOf("g++") >= 0 || exe.indexOf("gcc") >= 0) { |
| return argumentParsers.GCC; |
| } |
| //there is a lot of code around that makes this assumption. |
| //probably not the best thing to do :D |
| return argumentParsers.GCC; |
| } |
| |
| getVersion() { |
| logger.info(`Gathering ${this.compiler.id} version information on ${this.compiler.exe}`); |
| const execOptions = this.getDefaultExecOptions(); |
| const versionFlag = this.compiler.versionFlag || '--version'; |
| execOptions.timeoutMs = 0; // No timeout for --version. A sort of workaround for slow EFS/NFS on the prod site |
| return this.exec(this.compiler.exe, [versionFlag], execOptions); |
| } |
| |
| initialise() { |
| if (this.getRemote()) return Promise.resolve(this); |
| const compiler = this.compiler.exe; |
| const versionRe = new RegExp(this.compiler.versionRe || '.*', 'i'); |
| return this.env.enqueue(() => { |
| return this.getVersion(); |
| }).then(result => { |
| if (result.code !== 0) { |
| logger.warn(`Compiler '${compiler}' - non-zero result ${result.code}`); |
| } |
| let version = ""; |
| _.each(utils.splitLines(result.stdout + result.stderr), line => { |
| if (version) return; |
| const match = line.match(versionRe); |
| if (match) version = match[0]; |
| }); |
| if (!version) { |
| logger.error(`Unable to find compiler version for '${compiler}':`, result, 'with re', versionRe); |
| return null; |
| } |
| logger.debug(`${compiler} is version '${version}'`); |
| this.compiler.version = version; |
| this.compiler.supportsCfg = this.isCfgCompiler(version); |
| this.compiler.supportsAstView = this.couldSupportASTDump(version); |
| return this.getArgumentParser().parse(this); |
| }, err => { |
| logger.error(`Unable to get version for compiler '${compiler}' - ${err}`); |
| return null; |
| }); |
| } |
| |
| getInfo() { |
| return this.compiler; |
| } |
| |
| getDefaultFilters() { |
| // TODO; propagate to UI? |
| return { |
| intel: true, |
| commentOnly: true, |
| directives: true, |
| labels: true, |
| optOutput: false |
| }; |
| } |
| } |
| |
| module.exports = BaseCompiler; |