meta-openembedded/meta-networking/recipes-filter/libnftnl/libnftnl/0001-Move-exports-before-symbol-definition.patch

From 21eb59fbd071ebffb8495232766824944fb521a0 Mon Sep 17 00:00:00 2001
From: Alex Kiernan <alex.kiernan@gmail.com>
Date: Wed, 7 Nov 2018 21:19:53 +0000
Subject: [PATCH] Move exports before symbol definition

Based on 7966020 ("src: Fix exporting symbols with clang"), when
EXPORT_SYMBOL is located after function definition, clang won't properly
export the function, resulting in a library with no symbols when built with
clang.

Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
---
 src/flowtable.c | 54 +++++++++++++++++++++++++++---------------------------
 1 file changed, 27 insertions(+), 27 deletions(-)

diff --git a/src/flowtable.c b/src/flowtable.c
index c1ddae4..d7434e3 100644
--- a/src/flowtable.c
+++ b/src/flowtable.c
@@ -34,12 +34,13 @@ struct nftnl_flowtable {
 	uint32_t		flags;
 };
 
+EXPORT_SYMBOL(nftnl_flowtable_alloc);
 struct nftnl_flowtable *nftnl_flowtable_alloc(void)
 {
 	return calloc(1, sizeof(struct nftnl_flowtable));
 }
-EXPORT_SYMBOL(nftnl_flowtable_alloc);
 
+EXPORT_SYMBOL(nftnl_flowtable_free);
 void nftnl_flowtable_free(const struct nftnl_flowtable *c)
 {
 	int i;
@@ -56,14 +57,14 @@ void nftnl_flowtable_free(const struct nftnl_flowtable *c)
 	}
 	xfree(c);
 }
-EXPORT_SYMBOL(nftnl_flowtable_free);
 
+EXPORT_SYMBOL(nftnl_flowtable_is_set);
 bool nftnl_flowtable_is_set(const struct nftnl_flowtable *c, uint16_t attr)
 {
 	return c->flags & (1 << attr);
 }
-EXPORT_SYMBOL(nftnl_flowtable_is_set);
 
+EXPORT_SYMBOL(nftnl_flowtable_unset);
 void nftnl_flowtable_unset(struct nftnl_flowtable *c, uint16_t attr)
 {
 	int i;
@@ -96,7 +97,6 @@ void nftnl_flowtable_unset(struct nftnl_flowtable *c, uint16_t attr)
 
 	c->flags &= ~(1 << attr);
 }
-EXPORT_SYMBOL(nftnl_flowtable_unset);
 
 static uint32_t nftnl_flowtable_validate[NFTNL_FLOWTABLE_MAX + 1] = {
 	[NFTNL_FLOWTABLE_HOOKNUM]	= sizeof(uint32_t),
@@ -105,6 +105,7 @@ static uint32_t nftnl_flowtable_validate[NFTNL_FLOWTABLE_MAX + 1] = {
 	[NFTNL_FLOWTABLE_FLAGS]		= sizeof(uint32_t),
 };
 
+EXPORT_SYMBOL(nftnl_flowtable_set_data);
 int nftnl_flowtable_set_data(struct nftnl_flowtable *c, uint16_t attr,
 			     const void *data, uint32_t data_len)
 {
@@ -170,32 +171,32 @@ int nftnl_flowtable_set_data(struct nftnl_flowtable *c, uint16_t attr,
 	c->flags |= (1 << attr);
 	return 0;
 }
-EXPORT_SYMBOL(nftnl_flowtable_set_data);
 
+EXPORT_SYMBOL(nftnl_flowtable_set);
 void nftnl_flowtable_set(struct nftnl_flowtable *c, uint16_t attr, const void *data)
 {
 	nftnl_flowtable_set_data(c, attr, data, nftnl_flowtable_validate[attr]);
 }
-EXPORT_SYMBOL(nftnl_flowtable_set);
 
+EXPORT_SYMBOL(nftnl_flowtable_set_u32);
 void nftnl_flowtable_set_u32(struct nftnl_flowtable *c, uint16_t attr, uint32_t data)
 {
 	nftnl_flowtable_set_data(c, attr, &data, sizeof(uint32_t));
 }
-EXPORT_SYMBOL(nftnl_flowtable_set_u32);
 
+EXPORT_SYMBOL(nftnl_flowtable_set_s32);
 void nftnl_flowtable_set_s32(struct nftnl_flowtable *c, uint16_t attr, int32_t data)
 {
 	nftnl_flowtable_set_data(c, attr, &data, sizeof(int32_t));
 }
-EXPORT_SYMBOL(nftnl_flowtable_set_s32);
 
+EXPORT_SYMBOL(nftnl_flowtable_set_str);
 int nftnl_flowtable_set_str(struct nftnl_flowtable *c, uint16_t attr, const char *str)
 {
 	return nftnl_flowtable_set_data(c, attr, str, strlen(str) + 1);
 }
-EXPORT_SYMBOL(nftnl_flowtable_set_str);
 
+EXPORT_SYMBOL(nftnl_flowtable_get_data);
 const void *nftnl_flowtable_get_data(const struct nftnl_flowtable *c,
 				     uint16_t attr, uint32_t *data_len)
 {
@@ -229,21 +230,21 @@ const void *nftnl_flowtable_get_data(const struct nftnl_flowtable *c,
 	}
 	return NULL;
 }
-EXPORT_SYMBOL(nftnl_flowtable_get_data);
 
+EXPORT_SYMBOL(nftnl_flowtable_get);
 const void *nftnl_flowtable_get(const struct nftnl_flowtable *c, uint16_t attr)
 {
 	uint32_t data_len;
 	return nftnl_flowtable_get_data(c, attr, &data_len);
 }
-EXPORT_SYMBOL(nftnl_flowtable_get);
 
+EXPORT_SYMBOL(nftnl_flowtable_get_str);
 const char *nftnl_flowtable_get_str(const struct nftnl_flowtable *c, uint16_t attr)
 {
 	return nftnl_flowtable_get(c, attr);
 }
-EXPORT_SYMBOL(nftnl_flowtable_get_str);
 
+EXPORT_SYMBOL(nftnl_flowtable_get_u32);
 uint32_t nftnl_flowtable_get_u32(const struct nftnl_flowtable *c, uint16_t attr)
 {
 	uint32_t data_len;
@@ -253,8 +254,8 @@ uint32_t nftnl_flowtable_get_u32(const struct nftnl_flowtable *c, uint16_t attr)
 
 	return val ? *val : 0;
 }
-EXPORT_SYMBOL(nftnl_flowtable_get_u32);
 
+EXPORT_SYMBOL(nftnl_flowtable_get_s32);
 int32_t nftnl_flowtable_get_s32(const struct nftnl_flowtable *c, uint16_t attr)
 {
 	uint32_t data_len;
@@ -264,8 +265,8 @@ int32_t nftnl_flowtable_get_s32(const struct nftnl_flowtable *c, uint16_t attr)
 
 	return val ? *val : 0;
 }
-EXPORT_SYMBOL(nftnl_flowtable_get_s32);
 
+EXPORT_SYMBOL(nftnl_flowtable_nlmsg_build_payload);
 void nftnl_flowtable_nlmsg_build_payload(struct nlmsghdr *nlh,
 					 const struct nftnl_flowtable *c)
 {
@@ -301,7 +302,6 @@ void nftnl_flowtable_nlmsg_build_payload(struct nlmsghdr *nlh,
 	if (c->flags & (1 << NFTNL_FLOWTABLE_SIZE))
 		mnl_attr_put_u32(nlh, NFTA_FLOWTABLE_SIZE, htonl(c->size));
 }
-EXPORT_SYMBOL(nftnl_flowtable_nlmsg_build_payload);
 
 static int nftnl_flowtable_parse_attr_cb(const struct nlattr *attr, void *data)
 {
@@ -412,6 +412,7 @@ static int nftnl_flowtable_parse_hook(struct nlattr *attr, struct nftnl_flowtabl
 	return 0;
 }
 
+EXPORT_SYMBOL(nftnl_flowtable_nlmsg_parse);
 int nftnl_flowtable_nlmsg_parse(const struct nlmsghdr *nlh, struct nftnl_flowtable *c)
 {
 	struct nlattr *tb[NFTA_FLOWTABLE_MAX + 1] = {};
@@ -460,7 +461,6 @@ int nftnl_flowtable_nlmsg_parse(const struct nlmsghdr *nlh, struct nftnl_flowtab
 
 	return ret;
 }
-EXPORT_SYMBOL(nftnl_flowtable_nlmsg_parse);
 
 static const char *nftnl_hooknum2str(int family, int hooknum)
 {
@@ -612,20 +612,20 @@ static int nftnl_flowtable_do_parse(struct nftnl_flowtable *c,
 	return ret;
 }
 
+EXPORT_SYMBOL(nftnl_flowtable_parse);
 int nftnl_flowtable_parse(struct nftnl_flowtable *c, enum nftnl_parse_type type,
 			  const char *data, struct nftnl_parse_err *err)
 {
 	return nftnl_flowtable_do_parse(c, type, data, err, NFTNL_PARSE_BUFFER);
 }
-EXPORT_SYMBOL(nftnl_flowtable_parse);
 
+EXPORT_SYMBOL(nftnl_flowtable_parse_file);
 int nftnl_flowtable_parse_file(struct nftnl_flowtable *c,
 			       enum nftnl_parse_type type,
 			       FILE *fp, struct nftnl_parse_err *err)
 {
 	return nftnl_flowtable_do_parse(c, type, fp, err, NFTNL_PARSE_FILE);
 }
-EXPORT_SYMBOL(nftnl_flowtable_parse_file);
 
 static int nftnl_flowtable_export(char *buf, size_t size,
 				  const struct nftnl_flowtable *c, int type)
@@ -720,6 +720,7 @@ static int nftnl_flowtable_cmd_snprintf(char *buf, size_t size,
 	return offset;
 }
 
+EXPORT_SYMBOL(nftnl_flowtable_snprintf);
 int nftnl_flowtable_snprintf(char *buf, size_t size, const struct nftnl_flowtable *c,
 			 uint32_t type, uint32_t flags)
 {
@@ -729,7 +730,6 @@ int nftnl_flowtable_snprintf(char *buf, size_t size, const struct nftnl_flowtabl
 	return nftnl_flowtable_cmd_snprintf(buf, size, c, nftnl_flag2cmd(flags),
 					    type, flags);
 }
-EXPORT_SYMBOL(nftnl_flowtable_snprintf);
 
 static int nftnl_flowtable_do_snprintf(char *buf, size_t size, const void *c,
 				   uint32_t cmd, uint32_t type, uint32_t flags)
@@ -737,18 +737,19 @@ static int nftnl_flowtable_do_snprintf(char *buf, size_t size, const void *c,
 	return nftnl_flowtable_snprintf(buf, size, c, type, flags);
 }
 
+EXPORT_SYMBOL(nftnl_flowtable_fprintf);
 int nftnl_flowtable_fprintf(FILE *fp, const struct nftnl_flowtable *c,
 			    uint32_t type, uint32_t flags)
 {
 	return nftnl_fprintf(fp, c, NFTNL_CMD_UNSPEC, type, flags,
 			   nftnl_flowtable_do_snprintf);
 }
-EXPORT_SYMBOL(nftnl_flowtable_fprintf);
 
 struct nftnl_flowtable_list {
 	struct list_head list;
 };
 
+EXPORT_SYMBOL(nftnl_flowtable_list_alloc);
 struct nftnl_flowtable_list *nftnl_flowtable_list_alloc(void)
 {
 	struct nftnl_flowtable_list *list;
@@ -761,8 +762,8 @@ struct nftnl_flowtable_list *nftnl_flowtable_list_alloc(void)
 
 	return list;
 }
-EXPORT_SYMBOL(nftnl_flowtable_list_alloc);
 
+EXPORT_SYMBOL(nftnl_flowtable_list_free);
 void nftnl_flowtable_list_free(struct nftnl_flowtable_list *list)
 {
 	struct nftnl_flowtable *s, *tmp;
@@ -773,34 +774,34 @@ void nftnl_flowtable_list_free(struct nftnl_flowtable_list *list)
 	}
 	xfree(list);
 }
-EXPORT_SYMBOL(nftnl_flowtable_list_free);
 
+EXPORT_SYMBOL(nftnl_flowtable_list_is_empty);
 int nftnl_flowtable_list_is_empty(const struct nftnl_flowtable_list *list)
 {
 	return list_empty(&list->list);
 }
-EXPORT_SYMBOL(nftnl_flowtable_list_is_empty);
 
+EXPORT_SYMBOL(nftnl_flowtable_list_add);
 void nftnl_flowtable_list_add(struct nftnl_flowtable *s,
 			      struct nftnl_flowtable_list *list)
 {
 	list_add(&s->head, &list->list);
 }
-EXPORT_SYMBOL(nftnl_flowtable_list_add);
 
+EXPORT_SYMBOL(nftnl_flowtable_list_add_tail);
 void nftnl_flowtable_list_add_tail(struct nftnl_flowtable *s,
 				   struct nftnl_flowtable_list *list)
 {
 	list_add_tail(&s->head, &list->list);
 }
-EXPORT_SYMBOL(nftnl_flowtable_list_add_tail);
 
+EXPORT_SYMBOL(nftnl_flowtable_list_del);
 void nftnl_flowtable_list_del(struct nftnl_flowtable *s)
 {
 	list_del(&s->head);
 }
-EXPORT_SYMBOL(nftnl_flowtable_list_del);
 
+EXPORT_SYMBOL(nftnl_flowtable_list_foreach);
 int nftnl_flowtable_list_foreach(struct nftnl_flowtable_list *flowtable_list,
 				 int (*cb)(struct nftnl_flowtable *t, void *data), void *data)
 {
@@ -814,4 +815,3 @@ int nftnl_flowtable_list_foreach(struct nftnl_flowtable_list *flowtable_list,
 	}
 	return 0;
 }
-EXPORT_SYMBOL(nftnl_flowtable_list_foreach);