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Add ARM v8 AArch64 semihosting support

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This patch implements semihosting support for AArch64. This picks
code from previously submitted AArch64 semihosting support patch
and rebases on top of reworked semihosting code. Tested in AArch64
mode on a Lemaker Hikey Board with NewLib and GDB.

Change-Id: I228a38f1de24f79e49ba99d8514d822a28c2950b
Signed-off-by: Omair Javaid <omair.javaid@linaro.org>
Reviewed-on: http://openocd.zylin.com/4537
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
This commit is contained in:
Omair Javaid
2018-05-23 17:43:47 +05:00
committed by Matthias Welwarsky
parent d04254196e
commit a7da117ad6
5 changed files with 112 additions and 22 deletions
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10
src/target/semihosting_common.c
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@@ -1397,8 +1397,9 @@ static int semihosting_read_fields(struct target *target, size_t number,
uint8_t *fields)
{
struct semihosting *semihosting = target->semihosting;
return target_read_memory(target, semihosting->param,
semihosting->word_size_bytes, number, fields);
/* Use 4-byte multiples to trigger fast memory access. */
return target_read_memory(target, semihosting->param, 4,
number * (semihosting->word_size_bytes / 4), fields);
}
/**
@@ -1408,8 +1409,9 @@ static int semihosting_write_fields(struct target *target, size_t number,
uint8_t *fields)
{
struct semihosting *semihosting = target->semihosting;
return target_write_memory(target, semihosting->param,
semihosting->word_size_bytes, number, fields);
/* Use 4-byte multiples to trigger fast memory access. */
return target_write_memory(target, semihosting->param, 4,
number * (semihosting->word_size_bytes / 4), fields);
}
/**