From: Simon Glass <sjg@chromium.org>
Date: Mon, 4 Jul 2016 17:58:13 +0000 (-0600)
Subject: tiny-printf: Support assert()
X-Git-Tag: v2016.09-rc1~82^2~29
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=e24091398d50961ece2fcb2924d7c37d329abc09;p=oweals%2Fu-boot.git

tiny-printf: Support assert()

At present assert() is not supported with tiny-printf, so when DEBUG is
enabled a build error is generated for each assert().

Add an __assert_fail() function to correct this. It prints a message and
then hangs.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

diff --git a/lib/tiny-printf.c b/lib/tiny-printf.c
index b334f053cc..1aa43aba44 100644
--- a/lib/tiny-printf.c
+++ b/lib/tiny-printf.c
@@ -185,3 +185,12 @@ int snprintf(char *buf, size_t size, const char *fmt, ...)
 
 	return ret;
 }
+
+void __assert_fail(const char *assertion, const char *file, unsigned line,
+		   const char *function)
+{
+	/* This will not return */
+	printf("%s:%u: %s: Assertion `%s' failed.", file, line, function,
+	       assertion);
+	hang();
+}