eal: export function to get runtime directory

This patch makes the eal_get_runtime_dir() API public so it can be used
from outside EAL.

Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>

lib/librte_eal/bsdapp/eal/eal.c

@@ -142,7 +142,7 @@ eal_create_runtime_dir(void)
 }
 
 const char *
-eal_get_runtime_dir(void)
+rte_eal_get_runtime_dir(void)
 {
 	return runtime_dir;
 }

lib/librte_eal/common/eal_filesystem.h

@@ -27,7 +27,7 @@ eal_create_runtime_dir(void);
 
 /* returns runtime dir */
 const char *
-eal_get_runtime_dir(void);
+rte_eal_get_runtime_dir(void);
 
 #define RUNTIME_CONFIG_FNAME "config"
 static inline const char *
@@ -35,7 +35,7 @@ eal_runtime_config_path(void)
 {
 	static char buffer[PATH_MAX]; /* static so auto-zeroed */
 
-	snprintf(buffer, sizeof(buffer) - 1, "%s/%s", eal_get_runtime_dir(),
+	snprintf(buffer, sizeof(buffer) - 1, "%s/%s", rte_eal_get_runtime_dir(),
 			RUNTIME_CONFIG_FNAME);
 	return buffer;
 }
@@ -47,7 +47,7 @@ eal_mp_socket_path(void)
 {
 	static char buffer[PATH_MAX]; /* static so auto-zeroed */
 
-	snprintf(buffer, sizeof(buffer) - 1, "%s/%s", eal_get_runtime_dir(),
+	snprintf(buffer, sizeof(buffer) - 1, "%s/%s", rte_eal_get_runtime_dir(),
 			MP_SOCKET_FNAME);
 	return buffer;
 }
@@ -55,7 +55,8 @@ eal_mp_socket_path(void)
 #define FBARRAY_NAME_FMT "%s/fbarray_%s"
 static inline const char *
 eal_get_fbarray_path(char *buffer, size_t buflen, const char *name) {
-	snprintf(buffer, buflen, FBARRAY_NAME_FMT, eal_get_runtime_dir(), name);
+	snprintf(buffer, buflen, FBARRAY_NAME_FMT, rte_eal_get_runtime_dir(),
+			name);
 	return buffer;
 }
 
@@ -66,7 +67,7 @@ eal_hugepage_info_path(void)
 {
 	static char buffer[PATH_MAX]; /* static so auto-zeroed */
 
-	snprintf(buffer, sizeof(buffer) - 1, "%s/%s", eal_get_runtime_dir(),
+	snprintf(buffer, sizeof(buffer) - 1, "%s/%s", rte_eal_get_runtime_dir(),
 			HUGEPAGE_INFO_FNAME);
 	return buffer;
 }
@@ -78,7 +79,7 @@ eal_hugepage_data_path(void)
 {
 	static char buffer[PATH_MAX]; /* static so auto-zeroed */
 
-	snprintf(buffer, sizeof(buffer) - 1, "%s/%s", eal_get_runtime_dir(),
+	snprintf(buffer, sizeof(buffer) - 1, "%s/%s", rte_eal_get_runtime_dir(),
 			HUGEPAGE_DATA_FNAME);
 	return buffer;
 }
@@ -99,7 +100,7 @@ eal_get_hugefile_path(char *buffer, size_t buflen, const char *hugedir, int f_id
 static inline const char *
 eal_get_hugefile_lock_path(char *buffer, size_t buflen, int f_id)
 {
-	snprintf(buffer, buflen, HUGEFILE_LOCK_FMT, eal_get_runtime_dir(),
+	snprintf(buffer, buflen, HUGEFILE_LOCK_FMT, rte_eal_get_runtime_dir(),
 			f_id);
 	buffer[buflen - 1] = '\0';
 	return buffer;

lib/librte_eal/common/include/rte_eal.h

@@ -507,6 +507,15 @@ enum rte_iova_mode rte_eal_iova_mode(void);
 const char *
 rte_eal_mbuf_user_pool_ops(void);
 
+/**
+ * Get the runtime directory of DPDK
+ *
+ * @return
+ *  The runtime directory path of DPDK
+ */
+const char *
+rte_eal_get_runtime_dir(void);
+
 #ifdef __cplusplus
 }
 #endif

lib/librte_eal/linuxapp/eal/eal.c

@@ -150,7 +150,7 @@ eal_create_runtime_dir(void)
 }
 
 const char *
-eal_get_runtime_dir(void)
+rte_eal_get_runtime_dir(void)
 {
 	return runtime_dir;
 }

lib/librte_eal/rte_eal_version.map

@@ -259,6 +259,7 @@ DPDK_18.08 {
 DPDK_18.11 {
 	global:
 
+	rte_eal_get_runtime_dir;
 	rte_eal_hotplug_add;
 	rte_eal_hotplug_remove;
 	rte_strscpy;