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author | Heyi Guo <guoheyi@linux.alibaba.com> | 2020-10-27 08:36:40 +0800 |
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committer | Heyi Guo <guoheyi@linux.alibaba.com> | 2021-01-20 13:09:13 +0800 |
commit | 128c5f02859579ce15df18c5d443565778b2d3bf (patch) | |
tree | 97ba549824127ed30daa7d79f77a394f5de26eca /lib | |
parent | f03c4ea8e604bcf5d13af3012e0ba7ec56e3180f (diff) | |
download | trusted-firmware-a-128c5f02859579ce15df18c5d443565778b2d3bf.tar.gz |
libc/printf: add support to print "%" character
Enable printf() in TF-A to print "%" character as C standard, which
may be used in platform porting to print percentage information.
Signed-off-by: Heyi Guo <guoheyi@linux.alibaba.com>
Change-Id: I7af2f1d153548e426f423fce15dc48b0da56c622
Diffstat (limited to 'lib')
-rw-r--r-- | lib/libc/printf.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/libc/printf.c b/lib/libc/printf.c index 2715a72d4f..45e153ec7d 100644 --- a/lib/libc/printf.c +++ b/lib/libc/printf.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2014-2021, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -108,6 +108,9 @@ int vprintf(const char *fmt, va_list args) /* Check the format specifier */ loop: switch (*fmt) { + case '%': + (void)putchar('%'); + break; case 'i': /* Fall through to next one */ case 'd': num = get_num_va_args(args, l_count); |