Commit e2409139 authored by Simon Glass's avatar Simon Glass

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: default avatarSimon Glass <>
parent 162a7a42
......@@ -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,
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