[PATCH 19.11 1/3] eal: fix missing C++ guards

[Brian Dooley]

[ upstream commit d7e9c02ccad8928b6b804049ced9a3ce6172d81e ]

Some public header files were missing 'extern "C"' C++ guards,
and couldn't be used by C++ applications. Add the missing guards.

Fixes: af75078fece3 ("first public release")
Fixes: 166a743c53fa ("compat: add infrastructure to support symbol versioning")
Fixes: 8f40ee0734c8 ("eal/x86: get hypervisor name")
Fixes: 75583b0d1efd ("eal: add keep alive monitoring")
Fixes: 88701645c98c ("eal: move interrupt type out of igb_uio")
Fixes: f04519d8092e ("lib: add missing include dependencies")
Fixes: 428eb983f5f7 ("eal: add OS specific header file")
Cc: nhorman at tuxdriver.com
Cc: thomas at monjalon.net
Cc: anatoly.burakov at intel.com
Cc: adrien.mazarguil at 6wind.com
Cc: anand.rawat at intel.com
Cc: stable at dpdk.org

Signed-off-by: Brian Dooley <brian.dooley at intel.com>
Acked-by: Bruce Richardson <bruce.richardson at intel.com>
Acked-by: Tyler Retzlaff <roretzla at linux.microsoft.com>
---
 lib/librte_eal/common/include/rte_branch_prediction.h    | 8 ++++++++
 lib/librte_eal/common/include/rte_compat.h               | 8 ++++++++
 lib/librte_eal/common/include/rte_hypervisor.h           | 8 ++++++++
 lib/librte_eal/common/include/rte_keepalive.h            | 8 ++++++++
 lib/librte_eal/common/include/rte_pci_dev_feature_defs.h | 8 ++++++++
 lib/librte_eal/common/include/rte_pci_dev_features.h     | 8 ++++++++
 lib/librte_eal/common/include/rte_time.h                 | 8 ++++++++
 lib/librte_eal/linux/eal/include/rte_os.h                | 8 ++++++++
 8 files changed, 64 insertions(+)

diff --git a/lib/librte_eal/common/include/rte_branch_prediction.h b/lib/librte_eal/common/include/rte_branch_prediction.h
index 854ef9e5d..0256a9de6 100644
--- a/lib/librte_eal/common/include/rte_branch_prediction.h
+++ b/lib/librte_eal/common/include/rte_branch_prediction.h
@@ -10,6 +10,10 @@
 #ifndef _RTE_BRANCH_PREDICTION_H_
 #define _RTE_BRANCH_PREDICTION_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * Check if a branch is likely to be taken.
  *
@@ -38,4 +42,8 @@
 #define unlikely(x)	__builtin_expect(!!(x), 0)
 #endif /* unlikely */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _RTE_BRANCH_PREDICTION_H_ */
diff --git a/lib/librte_eal/common/include/rte_compat.h b/lib/librte_eal/common/include/rte_compat.h
index 3eb33784b..0b8ba4353 100644
--- a/lib/librte_eal/common/include/rte_compat.h
+++ b/lib/librte_eal/common/include/rte_compat.h
@@ -6,6 +6,10 @@
 #ifndef _RTE_COMPAT_H_
 #define _RTE_COMPAT_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef ALLOW_EXPERIMENTAL_API
 
 #define __rte_experimental \
@@ -19,4 +23,8 @@ __attribute__((section(".text.experimental")))
 
 #endif
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _RTE_COMPAT_H_ */
diff --git a/lib/librte_eal/common/include/rte_hypervisor.h b/lib/librte_eal/common/include/rte_hypervisor.h
index 5fe719c1d..1666431ce 100644
--- a/lib/librte_eal/common/include/rte_hypervisor.h
+++ b/lib/librte_eal/common/include/rte_hypervisor.h
@@ -5,6 +5,10 @@
 #ifndef RTE_HYPERVISOR_H
 #define RTE_HYPERVISOR_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @file
  * Hypervisor awareness.
@@ -30,4 +34,8 @@ rte_hypervisor_get(void);
 const char *
 rte_hypervisor_get_name(enum rte_hypervisor id);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* RTE_HYPERVISOR_H */
diff --git a/lib/librte_eal/common/include/rte_keepalive.h b/lib/librte_eal/common/include/rte_keepalive.h
index 4bda7ca56..cd5099295 100644
--- a/lib/librte_eal/common/include/rte_keepalive.h
+++ b/lib/librte_eal/common/include/rte_keepalive.h
@@ -11,6 +11,10 @@
 #ifndef _KEEPALIVE_H_
 #define _KEEPALIVE_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <rte_config.h>
 #include <rte_memory.h>
 
@@ -139,4 +143,8 @@ rte_keepalive_register_relay_callback(struct rte_keepalive *keepcfg,
 	rte_keepalive_relay_callback_t callback,
 	void *data);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _KEEPALIVE_H_ */
diff --git a/lib/librte_eal/common/include/rte_pci_dev_feature_defs.h b/lib/librte_eal/common/include/rte_pci_dev_feature_defs.h
index e12c22081..c5bb63128 100644
--- a/lib/librte_eal/common/include/rte_pci_dev_feature_defs.h
+++ b/lib/librte_eal/common/include/rte_pci_dev_feature_defs.h
@@ -5,6 +5,10 @@
 #ifndef _RTE_PCI_DEV_DEFS_H_
 #define _RTE_PCI_DEV_DEFS_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* interrupt mode */
 enum rte_intr_mode {
 	RTE_INTR_MODE_NONE = 0,
@@ -13,4 +17,8 @@ enum rte_intr_mode {
 	RTE_INTR_MODE_MSIX
 };
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _RTE_PCI_DEV_DEFS_H_ */
diff --git a/lib/librte_eal/common/include/rte_pci_dev_features.h b/lib/librte_eal/common/include/rte_pci_dev_features.h
index 6104123d2..ee6e10590 100644
--- a/lib/librte_eal/common/include/rte_pci_dev_features.h
+++ b/lib/librte_eal/common/include/rte_pci_dev_features.h
@@ -5,6 +5,10 @@
 #ifndef _RTE_PCI_DEV_FEATURES_H
 #define _RTE_PCI_DEV_FEATURES_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <rte_pci_dev_feature_defs.h>
 
 #define RTE_INTR_MODE_NONE_NAME "none"
@@ -12,4 +16,8 @@
 #define RTE_INTR_MODE_MSI_NAME "msi"
 #define RTE_INTR_MODE_MSIX_NAME "msix"
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif
diff --git a/lib/librte_eal/common/include/rte_time.h b/lib/librte_eal/common/include/rte_time.h
index 5ad7c8841..ec25f7b93 100644
--- a/lib/librte_eal/common/include/rte_time.h
+++ b/lib/librte_eal/common/include/rte_time.h
@@ -5,6 +5,10 @@
 #ifndef _RTE_TIME_H_
 #define _RTE_TIME_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdint.h>
 #include <time.h>
 
@@ -98,4 +102,8 @@ rte_ns_to_timespec(uint64_t nsec)
 	return ts;
 }
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _RTE_TIME_H_ */
diff --git a/lib/librte_eal/linux/eal/include/rte_os.h b/lib/librte_eal/linux/eal/include/rte_os.h
index 390b87b3a..afa28ece9 100644
--- a/lib/librte_eal/linux/eal/include/rte_os.h
+++ b/lib/librte_eal/linux/eal/include/rte_os.h
@@ -5,6 +5,10 @@
 #ifndef _RTE_OS_H_
 #define _RTE_OS_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * This header should contain any definition
  * which is not supported natively or named differently in Linux.
@@ -29,4 +33,8 @@ typedef cpu_set_t rte_cpuset_t;
 	CPU_XOR(dst, &tmp, src); \
 } while (0)
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _RTE_OS_H_ */
-- 
2.25.1