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Diffstat (limited to 'lib/compilers/golang.js')
-rw-r--r-- | lib/compilers/golang.js | 234 |
1 files changed, 0 insertions, 234 deletions
diff --git a/lib/compilers/golang.js b/lib/compilers/golang.js deleted file mode 100644 index 8aa0fd985..000000000 --- a/lib/compilers/golang.js +++ /dev/null @@ -1,234 +0,0 @@ -// Copyright (c) 2016, Compiler Explorer Authors -// 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. - -import _ from 'underscore'; - -import {BaseCompiler} from '../base-compiler'; -import * as utils from '../utils'; - -import {ClangParser} from './argument-parsers'; - -// Each arch has a list of jump instructions in -// Go source src/cmd/asm/internal/arch. -// x86 -> j, b -// arm -> cb, tb -// s390x -> cmpb, cmpub -const jumpRe = /^(j|b|cb|tb|cmpb|cmpub).*/i; - -export class GolangCompiler extends BaseCompiler { - static get key() { - return 'golang'; - } - - constructor(compilerInfo, env) { - super(compilerInfo, env); - this.goroot = this.compilerProps(`compiler.${this.compiler.id}.goroot`); - this.goarch = this.compilerProps(`compiler.${this.compiler.id}.goarch`); - this.goos = this.compilerProps(`compiler.${this.compiler.id}.goos`); - } - - convertNewGoL(code) { - const re = /^\s+(0[Xx]?[\dA-Za-z]+)?\s?(\d+)\s*\(([^:]+):(\d+)\)\s*([A-Z]+)(.*)/; - const reUnknown = /^\s+(0[Xx]?[\dA-Za-z]+)?\s?(\d+)\s*\(<unknown line number>\)\s*([A-Z]+)(.*)/; - const reFunc = /TEXT\s+[".]*(\S+)\(SB\)/; - let prevLine = null; - let file = null; - let fileCount = 0; - let func = null; - const funcCollisions = {}; - const labels = {}; - const usedLabels = {}; - const lines = code.map(obj => { - let pcMatch = null; - let fileMatch = null; - let lineMatch = null; - let ins = null; - let args = null; - - const line = obj.text; - let match = line.match(re); - if (match) { - pcMatch = match[2]; - fileMatch = match[3]; - lineMatch = match[4]; - ins = match[5]; - args = match[6]; - } else { - match = line.match(reUnknown); - if (match) { - pcMatch = match[2]; - ins = match[3]; - args = match[4]; - } else { - return null; - } - } - - match = line.match(reFunc); - if (match) { - // Normalize function name. - func = match[1].replace(/[()*.]+/g, '_'); - - // It's possible for normalized function names to collide. - // Keep a count of collisions per function name. Labels get - // suffixed with _[collisions] when collisions > 0. - let collisions = funcCollisions[func]; - if (collisions == null) { - collisions = 0; - } else { - collisions++; - } - - funcCollisions[func] = collisions; - } - - let res = []; - if (pcMatch && !labels[pcMatch]) { - // Create pseudo-label. - let label = pcMatch.replace(/^0{0,4}/, ''); - let suffix = ''; - if (funcCollisions[func] > 0) { - suffix = `_${funcCollisions[func]}`; - } - - label = `${func}_pc${label}${suffix}:`; - if (!labels[label]) { - res.push(label); - labels[label] = true; - } - } - - if (fileMatch && file !== fileMatch) { - fileCount++; - res.push(`\t.file ${fileCount} "${fileMatch}"`); - file = fileMatch; - } - - if (lineMatch && prevLine !== lineMatch) { - res.push(`\t.loc ${fileCount} ${lineMatch} 0`); - prevLine = lineMatch; - } - - args = this.replaceJump(func, funcCollisions[func], ins, args, usedLabels); - res.push(`\t${ins}${args}`); - return res; - }); - - // Find unused pseudo-labels so they can be filtered out. - const unusedLabels = _.mapObject(labels, (val, key) => !usedLabels[key]); - - return _.chain(lines) - .flatten() - .compact() - .filter(line => !unusedLabels[line]) - .value() - .join('\n'); - } - - replaceJump(func, collisions, ins, args, usedLabels) { - // Check if last argument is a decimal number. - const re = /(\s+)(\d+)(\s?)$/; - const match = args.match(re); - if (!match) { - return args; - } - - // Check instruction has a jump prefix - if (jumpRe.test(ins)) { - let label = `${func}_pc${match[2]}`; - if (collisions > 0) { - label += `_${collisions}`; - } - usedLabels[label + ':'] = true; // record label use for later filtering - return `${match[1]}${label}${match[3]}`; - } - - return args; - } - - extractLogging(stdout) { - let filepath = `./${this.compileFilename}`; - const reLogging = /^[^:]+:\d+:(\d+:)?\s.*/; - return stdout - .filter(obj => obj.text.match(reLogging)) - .map(obj => obj.text.replace(filepath, '<source>')) - .join('\n'); - } - - async postProcess(result) { - let out = result.stderr; - if (this.compiler.id === '6g141') { - out = result.stdout; - } - const logging = this.extractLogging(out); - result.asm = this.convertNewGoL(out); - result.stderr = null; - result.stdout = utils.parseOutput(logging, result.inputFilename); - return [result, '']; - } - - getSharedLibraryPathsAsArguments() { - return []; - } - - optionsForFilter(filters, outputFilename, userOptions) { - // If we're dealing with an older version... - if (this.compiler.id === '6g141') { - return ['tool', '6g', '-g', '-o', outputFilename, '-S']; - } - - if (filters.binary) { - return ['build', '-o', outputFilename, '-gcflags=' + userOptions.join(' ')]; - } else { - // Add userOptions to -gcflags to preserve previous behavior. - return ['build', '-o', outputFilename, '-gcflags=-S ' + userOptions.join(' ')]; - } - } - - filterUserOptions(userOptions) { - if (this.compiler.id === '6g141') { - return userOptions; - } - // userOptions are added to -gcflags in optionsForFilter - return []; - } - - getDefaultExecOptions() { - const execOptions = super.getDefaultExecOptions(); - if (this.goroot) { - execOptions.env.GOROOT = this.goroot; - } - if (this.goarch) { - execOptions.env.GOARCH = this.goarch; - } - if (this.goos) { - execOptions.env.GOOS = this.goos; - } - return execOptions; - } - - getArgumentParser() { - return ClangParser; - } -} |