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308 lines
6.9 KiB
308 lines
6.9 KiB
4 months ago
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/* -*- coding: utf-8 -*-
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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*/
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#include "config.h"
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#include <sys/wait.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <paths.h>
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#if defined HAVE_POSIX_SPAWN || defined HAVE_POSIX_SPAWNP
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#include <spawn.h>
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#endif
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// ..:: environment access fixer - begin ::..
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#ifdef HAVE_NSGETENVIRON
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#include <crt_externs.h>
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#else
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extern char **environ;
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#endif
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char **get_environ() {
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#ifdef HAVE_NSGETENVIRON
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return *_NSGetEnviron();
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#else
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return environ;
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#endif
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}
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// ..:: environment access fixer - end ::..
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// ..:: test fixtures - begin ::..
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static char const *cwd = NULL;
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static FILE *fd = NULL;
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static int need_comma = 0;
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void expected_out_open(const char *expected) {
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cwd = getcwd(NULL, 0);
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fd = fopen(expected, "w");
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if (!fd) {
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perror("fopen");
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exit(EXIT_FAILURE);
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}
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fprintf(fd, "[\n");
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need_comma = 0;
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}
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void expected_out_close() {
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fprintf(fd, "]\n");
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fclose(fd);
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fd = NULL;
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free((void *)cwd);
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cwd = NULL;
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}
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void expected_out(const char *file) {
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if (need_comma)
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fprintf(fd, ",\n");
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else
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need_comma = 1;
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fprintf(fd, "{\n");
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fprintf(fd, " \"directory\": \"%s\",\n", cwd);
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fprintf(fd, " \"command\": \"cc -c %s\",\n", file);
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fprintf(fd, " \"file\": \"%s/%s\"\n", cwd, file);
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fprintf(fd, "}\n");
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}
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void create_source(char *file) {
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FILE *fd = fopen(file, "w");
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if (!fd) {
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perror("fopen");
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exit(EXIT_FAILURE);
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}
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fprintf(fd, "typedef int score;\n");
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fclose(fd);
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}
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typedef void (*exec_fun)();
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void wait_for(pid_t child) {
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int status;
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if (-1 == waitpid(child, &status, 0)) {
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perror("wait");
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exit(EXIT_FAILURE);
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}
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if (WIFEXITED(status) ? WEXITSTATUS(status) : EXIT_FAILURE) {
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fprintf(stderr, "children process has non zero exit code\n");
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exit(EXIT_FAILURE);
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}
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}
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#define FORK(FUNC) \
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{ \
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pid_t child = fork(); \
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if (-1 == child) { \
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perror("fork"); \
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exit(EXIT_FAILURE); \
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} else if (0 == child) { \
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FUNC fprintf(stderr, "children process failed to exec\n"); \
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exit(EXIT_FAILURE); \
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} else { \
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wait_for(child); \
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} \
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}
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// ..:: test fixtures - end ::..
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#ifdef HAVE_EXECV
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void call_execv() {
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char *const file = "execv.c";
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char *const compiler = "/usr/bin/cc";
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char *const argv[] = {"cc", "-c", file, 0};
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expected_out(file);
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create_source(file);
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FORK(execv(compiler, argv);)
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}
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#endif
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#ifdef HAVE_EXECVE
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void call_execve() {
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char *const file = "execve.c";
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char *const compiler = "/usr/bin/cc";
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char *const argv[] = {compiler, "-c", file, 0};
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char *const envp[] = {"THIS=THAT", 0};
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expected_out(file);
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create_source(file);
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FORK(execve(compiler, argv, envp);)
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}
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#endif
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#ifdef HAVE_EXECVP
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void call_execvp() {
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char *const file = "execvp.c";
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char *const compiler = "cc";
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char *const argv[] = {compiler, "-c", file, 0};
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expected_out(file);
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create_source(file);
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FORK(execvp(compiler, argv);)
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}
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#endif
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#ifdef HAVE_EXECVP2
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void call_execvP() {
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char *const file = "execv_p.c";
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char *const compiler = "cc";
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char *const argv[] = {compiler, "-c", file, 0};
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expected_out(file);
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create_source(file);
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FORK(execvP(compiler, _PATH_DEFPATH, argv);)
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}
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#endif
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#ifdef HAVE_EXECVPE
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void call_execvpe() {
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char *const file = "execvpe.c";
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char *const compiler = "cc";
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char *const argv[] = {"/usr/bin/cc", "-c", file, 0};
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char *const envp[] = {"THIS=THAT", 0};
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expected_out(file);
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create_source(file);
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FORK(execvpe(compiler, argv, envp);)
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}
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#endif
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#ifdef HAVE_EXECT
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void call_exect() {
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char *const file = "exect.c";
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char *const compiler = "/usr/bin/cc";
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char *const argv[] = {compiler, "-c", file, 0};
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char *const envp[] = {"THIS=THAT", 0};
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expected_out(file);
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create_source(file);
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FORK(exect(compiler, argv, envp);)
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}
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#endif
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#ifdef HAVE_EXECL
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void call_execl() {
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char *const file = "execl.c";
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char *const compiler = "/usr/bin/cc";
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expected_out(file);
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create_source(file);
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FORK(execl(compiler, "cc", "-c", file, (char *)0);)
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}
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#endif
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#ifdef HAVE_EXECLP
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void call_execlp() {
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char *const file = "execlp.c";
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char *const compiler = "cc";
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expected_out(file);
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create_source(file);
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FORK(execlp(compiler, compiler, "-c", file, (char *)0);)
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}
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#endif
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#ifdef HAVE_EXECLE
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void call_execle() {
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char *const file = "execle.c";
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char *const compiler = "/usr/bin/cc";
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char *const envp[] = {"THIS=THAT", 0};
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expected_out(file);
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create_source(file);
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FORK(execle(compiler, compiler, "-c", file, (char *)0, envp);)
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}
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#endif
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#ifdef HAVE_POSIX_SPAWN
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void call_posix_spawn() {
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char *const file = "posix_spawn.c";
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char *const compiler = "cc";
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char *const argv[] = {compiler, "-c", file, 0};
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expected_out(file);
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create_source(file);
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pid_t child;
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if (0 != posix_spawn(&child, "/usr/bin/cc", 0, 0, argv, get_environ())) {
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perror("posix_spawn");
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exit(EXIT_FAILURE);
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}
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wait_for(child);
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}
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#endif
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#ifdef HAVE_POSIX_SPAWNP
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void call_posix_spawnp() {
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char *const file = "posix_spawnp.c";
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char *const compiler = "cc";
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char *const argv[] = {compiler, "-c", file, 0};
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expected_out(file);
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create_source(file);
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pid_t child;
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if (0 != posix_spawnp(&child, "cc", 0, 0, argv, get_environ())) {
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perror("posix_spawnp");
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exit(EXIT_FAILURE);
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}
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wait_for(child);
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}
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#endif
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int main(int argc, char *const argv[]) {
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if (argc != 2)
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exit(EXIT_FAILURE);
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expected_out_open(argv[1]);
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#ifdef HAVE_EXECV
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call_execv();
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#endif
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#ifdef HAVE_EXECVE
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call_execve();
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#endif
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#ifdef HAVE_EXECVP
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call_execvp();
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#endif
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#ifdef HAVE_EXECVP2
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call_execvP();
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#endif
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#ifdef HAVE_EXECVPE
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call_execvpe();
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#endif
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#ifdef HAVE_EXECT
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call_exect();
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#endif
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#ifdef HAVE_EXECL
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call_execl();
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#endif
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#ifdef HAVE_EXECLP
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call_execlp();
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#endif
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#ifdef HAVE_EXECLE
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call_execle();
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#endif
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#ifdef HAVE_POSIX_SPAWN
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call_posix_spawn();
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#endif
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#ifdef HAVE_POSIX_SPAWNP
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call_posix_spawnp();
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#endif
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expected_out_close();
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return 0;
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}
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