Merge branch 'lukeshu/simple-call-graph'

1 files changed, 20 insertions, 0 deletions

diff --git a/libmisc/log.c b/libmisc/log.c
index be87de6..da4c92e 100644
--- a/libmisc/log.c
+++ b/libmisc/log.c
@@ -8,6 +8,26 @@
 
 #include <libmisc/assert.h> /* for static_assert() */
 
+#include <libmisc/log.h>
+#include <libmisc/_intercept.h>
+
+struct log_stdout {};
+LO_IMPLEMENTATION_H(fmt_dest, struct log_stdout, log_stdout);
+LO_IMPLEMENTATION_C(fmt_dest, struct log_stdout, log_stdout, static);
+
+static size_t log_bytes = 0;
+
+static void log_stdout_putb(struct log_stdout *, uint8_t b) {
+	__lm_putchar(b);
+	log_bytes++;
+}
+
+static size_t log_stdout_tell(struct log_stdout *) {
+	return log_bytes;
+}
+
+lo_interface fmt_dest _log_dest = { .vtable = &_lo_log_stdout_fmt_dest_vtable };
+
 static const char *byte_strs[] = {
 	"0x00",
 	"0x01",