When compiled with -Og for better debugability u-boot ends up in a stack overflow using
gcc (Ubuntu 11.2.0-7ubuntu2) 11.2.0 GNU Binutils for Ubuntu 2.37
putchar(ch) is defined as a macro which ends up calling U-Boot's putc() implementation instead of the glibc one, which calls os_putc() ...
Let's use fputc(ch, stdout) instead as fputc() does not exist in U-Boot.
Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com --- arch/sandbox/cpu/os.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c index b72dafca2b..25a04a650a 100644 --- a/arch/sandbox/cpu/os.c +++ b/arch/sandbox/cpu/os.c @@ -628,7 +628,7 @@ int os_get_filesize(const char *fname, loff_t *size)
void os_putc(int ch) { - putchar(ch); + fputc(ch, stdout); }
void os_puts(const char *str)