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lib: utils/serial: Optimize semihosting_putc implementation

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For some debuggers that do not implement SYSWRITEC and SYSREADC
operations, we can use SYSWRITE and SYSREAD instead like the
implementation of semihosting_getc().

Signed-off-by: Chen Pei <cp0613@linux.alibaba.com>
Reviewed-by: Xiang W <wxjstz@126.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Chen Pei
2023-10-18 10:42:05 +08:00
committed by Anup Patel
parent 52fd64b82c
commit 07f2ccd990
1 changed files with 5 additions and 5 deletions
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10
lib/utils/serial/semihosting.c
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@@ -160,11 +160,6 @@ static long semihosting_write(long fd, const void *memp, size_t len)
/* clang-format on */
static void semihosting_putc(char ch)
{
semihosting_trap(SYSWRITEC, &ch);
}
static unsigned long semihosting_puts(const char *str, unsigned long len)
{
char ch;
@@ -183,6 +178,11 @@ static unsigned long semihosting_puts(const char *str, unsigned long len)
return (ret < 0) ? 0 : ret;
}
static void semihosting_putc(char ch)
{
semihosting_puts(&ch, 1);
}
static int semihosting_getc(void)
{
char ch = 0;