net/mlx5: fix compilation directive

[dpdk.git] / app / test / process.h

diff --git a/app/test/process.h b/app/test/process.h
index 2701127..128ce41 100644 (file)
--- a/app/test/process.h
+++ b/app/test/process.h
@@ -5,12 +5,16 @@
 #ifndef _PROCESS_H_
 #define _PROCESS_H_
 
+#include <errno.h>  /* errno */
 #include <limits.h> /* PATH_MAX */
 #include <libgen.h> /* basename et al */
 #include <stdlib.h> /* NULL */
+#include <string.h> /* strerror */
 #include <unistd.h> /* readlink */
 #include <sys/wait.h>
 
+#include <rte_string_fns.h> /* strlcpy */
+
 #ifdef RTE_EXEC_ENV_FREEBSD
 #define self "curproc"
 #define exe "file"
@@ -19,9 +23,11 @@
 #define exe "exe"
 #endif
 
+#ifdef RTE_LIBRTE_PDUMP
 #include <pthread.h>
 extern void *send_pkts(void *empty);
 extern uint16_t flag_for_send_pkts;
+#endif
 
 /*
  * launches a second copy of the test process using the given argv parameters,
@@ -36,7 +42,9 @@ process_dup(const char *const argv[], int numargs, const char *env_value)
        char *argv_cpy[numargs + 1];
        int i, fd, status;
        char path[32];
+#ifdef RTE_LIBRTE_PDUMP
        pthread_t thread;
+#endif
 
        pid_t pid = fork();
        if (pid < 0)
@@ -63,19 +71,30 @@ process_dup(const char *const argv[], int numargs, const char *env_value)
                /* set the environment variable */
                if (setenv(RECURSIVE_ENV_VAR, env_value, 1) != 0)
                        rte_panic("Cannot export environment variable\n");
-               if (execv("/proc/" self "/" exe, argv_cpy) < 0)
-                       rte_panic("Cannot exec\n");
+
+               strlcpy(path, "/proc/" self "/" exe, sizeof(path));
+               if (execv(path, argv_cpy) < 0) {
+                       if (errno == ENOENT) {
+                               printf("Could not find '%s', is procfs mounted?\n",
+                                               path);
+                       }
+                       rte_panic("Cannot exec: %s\n", strerror(errno));
+               }
        }
        /* parent process does a wait */
+#ifdef RTE_LIBRTE_PDUMP
        if ((strcmp(env_value, "run_pdump_server_tests") == 0))
                pthread_create(&thread, NULL, &send_pkts, NULL);
+#endif
 
        while (wait(&status) != pid)
                ;
+#ifdef RTE_LIBRTE_PDUMP
        if ((strcmp(env_value, "run_pdump_server_tests") == 0)) {
                flag_for_send_pkts = 0;
                pthread_join(thread, NULL);
        }
+#endif
        return status;
 }