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master
malloc/tst-mallocfork.c
57 строк
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Joseph Myers
Fix malloc tests build with GCC 10.
11 июн 2019, 01:12
11 июн 2019, 01:12
e6e2424
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/* Derived from the test case in https://sourceware.org/bugzilla/show_bug.cgi?id=838. */ #include <assert.h> #include <errno.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <sys/types.h> #include <sys/wait.h> #include <libc-diag.h> static void sig_handler (int signum) { pid_t child = fork (); if (child == 0) exit (0); TEMP_FAILURE_RETRY (waitpid (child, NULL, 0)); } static int do_test (void) { pid_t parent = getpid (); struct sigaction action = { .sa_handler = sig_handler }; sigemptyset (&action.sa_mask); DIAG_PUSH_NEEDS_COMMENT; DIAG_IGNORE_NEEDS_COMMENT (10, "-Wunused-result"); /* The result of malloc is deliberately ignored, so do not warn about that. */ malloc (sizeof (int)); DIAG_POP_NEEDS_COMMENT; if (sigaction (SIGALRM, &action, NULL) != 0) { puts ("sigaction failed"); return 1; } /* Create a child that sends the signal to be caught. */ pid_t child = fork (); if (child == 0) { if (kill (parent, SIGALRM) == -1) perror ("kill"); exit (0); } TEMP_FAILURE_RETRY (waitpid (child, NULL, 0)); return 0; } #define TEST_FUNCTION do_test () #include "../test-skeleton.c"