Fix build with GCC 8: strncpy ->strcpy

Recent gcc 8 trunk emits the warning below,

../../binutils-gdb/gdb/python/py-gdb-readline.c:79:15: error: ‘char* strncpy(char*, const char*, size_t)’ output truncated before terminating nul copying as many bytes from a string as its length [-Werror=stringop-truncation]
       strncpy (q, p, n);
       ~~~~~~~~^~~~~~~~~
../../binutils-gdb/gdb/python/py-gdb-readline.c:73:14: note: length computed here
   n = strlen (p);
       ~~~~~~~^~~

gdb:

2017-11-22  Yao Qi  <yao.qi@linaro.org>

	* python/py-gdb-readline.c (gdbpy_readline_wrapper): Use strcpy.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index a9e7528..63ae72e 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,9 @@
 2017-11-22  Yao Qi  <yao.qi@linaro.org>
 
+       * python/py-gdb-readline.c (gdbpy_readline_wrapper): Use strcpy.
+
+2017-11-22  Yao Qi  <yao.qi@linaro.org>
+
        * cli/cli-decode.c (help_list): Use memcpy instead of strncpy.
        * cp-namespace.c (cp_lookup_transparent_type_loop): Likewise.
 

diff --git a/gdb/python/py-gdb-readline.c b/gdb/python/py-gdb-readline.c
index a02fa8c..ab14b8c 100644 (file)
--- a/gdb/python/py-gdb-readline.c
+++ b/gdb/python/py-gdb-readline.c
@@ -76,7 +76,7 @@ gdbpy_readline_wrapper (FILE *sys_stdin, FILE *sys_stdout,
   q = (char *) PyMem_RawMalloc (n + 2);
   if (q != NULL)
     {
-      strncpy (q, p, n);
+      strcpy (q, p);
       q[n] = '\n';
       q[n + 1] = '\0';
     }