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