lby/mkrtos-real
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优化系统调用

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This commit is contained in:
zhangzheng
2023-09-03 15:55:06 +08:00
parent a9969d7762
commit ad72f5e0da
28 changed files with 355 additions and 146 deletions
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27
mkrtos_knl/knl/log.c
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@@ -13,6 +13,8 @@
#include "globals.h"
#include "init.h"
#include "printk.h"
#include "types.h"
#include "util.h"
static log_t log;
enum log_op
@@ -21,8 +23,7 @@ enum log_op
READ_DATA,
SET_FLAGS
};
static msg_tag_t
log_syscall(kobject_t *kobj, ram_limit_t *ram, entry_frame_t *f);
static void log_syscall(kobject_t *kobj, syscall_prot_t sys_p, msg_tag_t in_tag, entry_frame_t *f);
static void log_reg(void)
{
@@ -39,19 +40,21 @@ static msg_tag_t log_write_data(log_t *log, const char *data, int len)
}
return msg_tag_init(0);
}
static msg_tag_t
log_syscall(kobject_t *kobj, ram_limit_t *ram, entry_frame_t *f)
static void
log_syscall(kobject_t *kobj, syscall_prot_t sys_p, msg_tag_t in_tag, entry_frame_t *f)
{
msg_tag_t tag = msg_tag_init(f->r[0]);
if (tag.prot != LOG_PROT)
msg_tag_t tag = msg_tag_init3(0, 0, -EINVAL);
if (sys_p.prot != LOG_PROT)
{
return msg_tag_init3(0, 0, -EPROTO);
f->r[0] = msg_tag_init3(0, 0, -EPROTO).raw;
return;
}
switch (tag.type)
switch (sys_p.op)
{
case WRITE_DATA:
tag = log_write_data((log_t *)kobj, (const char *)(&f->r[1]), tag.type2);
tag = log_write_data(
(log_t *)kobj, (const char *)(&f->r[1]),
MIN(ipc_type_create(in_tag.type2).msg_buf_len, WORD_BYTES * 5));
break;
case READ_DATA:
printk("don't support read data.\n");
@@ -63,8 +66,8 @@ log_syscall(kobject_t *kobj, ram_limit_t *ram, entry_frame_t *f)
tag = msg_tag_init3(0, 0, -ENOSYS);
break;
}
return tag;
f->r[0] = tag.raw;
return;
}
void log_dump(void)