2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
107 lines
3.0 KiB
C
107 lines
3.0 KiB
C
//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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/*
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* fail.c
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* testObjects
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*
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* Created by Blaine Garst on 9/16/08.
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*
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdbool.h>
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bool readfile(char *buffer, const char *from) {
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int fd = open(from, 0);
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if (fd < 0) return false;
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int count = read(fd, buffer, 512);
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if (count < 0) return false;
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buffer[count] = 0; // zap newline
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return true;
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}
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// basic idea, take compiler args, run compiler, and verify that expected failure matches any existing one
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int main(int argc, char *argv[]) {
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if (argc == 1) return 0;
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char *copy[argc+1]; // make a copy
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// find and strip off -e "errorfile"
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char *errorfile = NULL;
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int counter = 0, i = 0;
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for (i = 1; i < argc; ++i) { // skip 0 arg which is "fail"
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if (!strncmp(argv[i], "-e", 2)) {
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errorfile = argv[++i];
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}
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else {
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copy[counter++] = argv[i];
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}
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}
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copy[counter] = NULL;
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pid_t child = fork();
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char buffer[512];
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if (child == 0) {
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// in child
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sprintf(buffer, "/tmp/errorfile_%d", getpid());
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close(1);
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int fd = creat(buffer, 0777);
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if (fd != 1) {
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fprintf(stderr, "didn't open custom error file %s as 1, got %d\n", buffer, fd);
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exit(1);
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}
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close(2);
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dup(1);
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int result = execv(copy[0], copy);
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exit(10);
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}
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if (child < 0) {
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printf("fork failed\n");
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exit(1);
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}
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int status = 0;
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pid_t deadchild = wait(&status);
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if (deadchild != child) {
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printf("wait got %d instead of %d\n", deadchild, child);
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exit(1);
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}
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if (WEXITSTATUS(status) == 0) {
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printf("compiler exited normally, not good under these circumstances\n");
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exit(1);
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}
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//printf("exit status of child %d was %d\n", child, WEXITSTATUS(status));
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sprintf(buffer, "/tmp/errorfile_%d", child);
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if (errorfile) {
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//printf("ignoring error file: %s\n", errorfile);
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char desired[512];
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char got[512];
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bool gotErrorFile = readfile(desired, errorfile);
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bool gotOutput = readfile(got, buffer);
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if (!gotErrorFile && gotOutput) {
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printf("didn't read errorfile %s, it should have something from\n*****\n%s\n*****\nin it.\n",
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errorfile, got);
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exit(1);
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}
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else if (gotErrorFile && gotOutput) {
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char *where = strstr(got, desired);
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if (!where) {
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printf("didn't find contents of %s in %s\n", errorfile, buffer);
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exit(1);
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}
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}
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else {
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printf("errorfile %s and output %s inconsistent\n", errorfile, buffer);
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exit(1);
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}
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}
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unlink(buffer);
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printf("success\n");
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exit(0);
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}
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