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
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@ -1,5 +1,5 @@
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/*
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/*
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* Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved.
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* Copyright (c) 2014-2021, ARM Limited and Contributors. All rights reserved.
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*
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*
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* SPDX-License-Identifier: BSD-3-Clause
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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*/
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@ -108,6 +108,9 @@ int vprintf(const char *fmt, va_list args)
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/* Check the format specifier */
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/* Check the format specifier */
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loop:
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loop:
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switch (*fmt) {
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switch (*fmt) {
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case '%':
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(void)putchar('%');
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break;
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case 'i': /* Fall through to next one */
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case 'i': /* Fall through to next one */
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case 'd':
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case 'd':
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num = get_num_va_args(args, l_count);
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num = get_num_va_args(args, l_count);
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