Add weak versions of die, malloc_or_die and some others
The trace-cmd code defines die, malloc_or_die, warning and
big_endian. There are currently used by pevent code. This patch adds
them to the tracecmd library as weak functions.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
diff --git a/trace-util.c b/trace-util.c
index 542e712..fbdb071 100644
--- a/trace-util.c
+++ b/trace-util.c
@@ -13,6 +13,62 @@
#define PLUGIN_DIR ".trace-cmd/plugins"
+#define __weak __attribute__((weak))
+
+void __weak die(char *fmt, ...)
+{
+ va_list ap;
+ int ret = errno;
+
+ if (errno)
+ perror("trace-cmd");
+ else
+ ret = -1;
+
+ va_start(ap, fmt);
+ fprintf(stderr, " ");
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+
+ fprintf(stderr, "\n");
+ exit(ret);
+}
+
+void __weak warning(char *fmt, ...)
+{
+ va_list ap;
+
+ if (errno)
+ perror("trace-cmd");
+ errno = 0;
+
+ va_start(ap, fmt);
+ fprintf(stderr, " ");
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+
+ fprintf(stderr, "\n");
+}
+
+void __weak *malloc_or_die(unsigned int size)
+{
+ void *data;
+
+ data = malloc(size);
+ if (!data)
+ die("malloc");
+ return data;
+}
+
+int __weak bigendian(void)
+{
+ unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 };
+ unsigned int *ptr;
+
+ ptr = (unsigned int *)str;
+ return *ptr == 0x01020304;
+}
+
void parse_cmdlines(char *file, int size __unused)
{
char *comm;
