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37 #ifndef RTE_EXEC_ENV_BAREMETAL
40 * launches a second copy of the test process using the given argv parameters,
41 * which should include argv[0] as the process name. To identify in the
42 * subprocess the source of the call, the env_value parameter is set in the
43 * environment as $RTE_TEST
46 process_dup(const char *const argv[], int numargs, const char *env_value)
48 char *argv_cpy[numargs + 1];
56 /* make a copy of the arguments to be passed to exec */
57 for (i = 0; i < numargs; i++)
58 argv_cpy[i] = strdup(argv[i]);
61 /* close all open file descriptors, check /proc/self/fd to only
62 * call close on open fds. Exclude fds 0, 1 and 2*/
63 for (fd = getdtablesize(); fd > 2; fd-- ) {
64 rte_snprintf(path, sizeof(path), "/proc/self/fd/%d", fd);
65 if (access(path, F_OK) == 0)
68 printf("Running binary with argv[]:");
69 for (i = 0; i < numargs; i++)
70 printf("'%s' ", argv_cpy[i]);
73 /* set the environment variable */
74 if (setenv(RECURSIVE_ENV_VAR, env_value, 1) != 0)
75 rte_panic("Cannot export environment variable\n");
76 if (execv("/proc/self/exe", argv_cpy) < 0)
77 rte_panic("Cannot exec\n");
79 /* parent process does a wait */
80 while (wait(&status) != pid)
85 #endif /* not baremetal */
87 #endif /* _PROCESS_H_ */