examples/performance-thread: fix build with ASan

[ upstream commit 4d2d125 ]

Code changes to avoid the following build error:
"strncpy specified bound XX equals destination size".

Signed-off-by: Xueqin Lin <xueqin.lin@intel.com>
Signed-off-by: Zhihong Peng <zhihongx.peng@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>

examples/performance-thread/common/lthread.c

@@ -20,6 +20,7 @@
 #include <sys/mman.h>
 
 #include <rte_log.h>
+#include <rte_string_fns.h>
 #include <ctx.h>
 #include <stack.h>
 
@@ -463,6 +464,5 @@ void lthread_set_funcname(const char *f)
 {
 	struct lthread *lt = THIS_LTHREAD;
 
-	strncpy(lt->funcname, f, sizeof(lt->funcname));
-	lt->funcname[sizeof(lt->funcname)-1] = 0;
+	strlcpy(lt->funcname, f, sizeof(lt->funcname));
 }

examples/performance-thread/common/lthread_cond.c

@@ -20,6 +20,7 @@
 
 #include <rte_log.h>
 #include <rte_common.h>
+#include <rte_string_fns.h>
 
 #include "lthread_api.h"
 #include "lthread_diag_api.h"
@@ -57,10 +58,9 @@ lthread_cond_init(char *name, struct lthread_cond **cond,
 	}
 
 	if (name == NULL)
-		strncpy(c->name, "no name", sizeof(c->name));
+		strlcpy(c->name, "no name", sizeof(c->name));
 	else
-		strncpy(c->name, name, sizeof(c->name));
-	c->name[sizeof(c->name)-1] = 0;
+		strlcpy(c->name, name, sizeof(c->name));
 
 	c->root_sched = THIS_SCHED;
 

examples/performance-thread/common/lthread_mutex.c

@@ -19,6 +19,7 @@
 #include <rte_log.h>
 #include <rte_spinlock.h>
 #include <rte_common.h>
+#include <rte_string_fns.h>
 
 #include "lthread_api.h"
 #include "lthread_int.h"
@@ -52,10 +53,9 @@ lthread_mutex_init(char *name, struct lthread_mutex **mutex,
 	}
 
 	if (name == NULL)
-		strncpy(m->name, "no name", sizeof(m->name));
+		strlcpy(m->name, "no name", sizeof(m->name));
 	else
-		strncpy(m->name, name, sizeof(m->name));
-	m->name[sizeof(m->name)-1] = 0;
+		strlcpy(m->name, name, sizeof(m->name));
 
 	m->root_sched = THIS_SCHED;
 	m->owner = NULL;