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add first steps to realize the system call stat

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This commit is contained in:
Stefan Lankes 2011-09-23 14:49:31 +02:00
parent a00f187a07
commit b1a968a82c
5 changed files with 24 additions and 1 deletions
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1
include/metalsvm/syscall.h
View file

@ -80,6 +80,7 @@ extern "C" {
#define __NR_sendto 27
#define __NR_recvfrom 28
#define __NR_select 29
#define __NR_stat 30
#ifdef __cplusplus
}

7
kernel/syscall.c
View file

@ -229,6 +229,13 @@ int syscall_handler(uint32_t sys_nr, ...)
ret = sys_close(fd);
break;
}
case __NR_stat: {
const char* name = va_arg(vl, const char*);
//struct stat* st = va_arg(vl, struct stat*);
ret = -EINVAL;
break;
}
case __NR_read: {
int fd = va_arg(vl, int);
const char* buf = va_arg(vl, const char*);

1
newlib/net/syscall.h
View file

@ -69,6 +69,7 @@ extern "C" {
#define __NR_sendto 27
#define __NR_recvfrom 28
#define __NR_select 29
#define __NR_stat 30
#define _STR(token) #token
#define _SYSCALLSTR(x) "int $" _STR(x) " "

15
newlib/src/libgloss/metalsvm/stat.c
View file

@ -46,12 +46,25 @@
#undef errno
extern int errno;
#include "warning.h"
#include "syscall.h"
int
_DEFUN (stat, (file, st),
const char *file _AND
struct stat *st)
{
st->st_mode = S_IFCHR;
int ret;
if (!file && ! st) {
errno = EINVAL;
return -1;
}
ret = SYSCALL2(__NR_stat, file, st);
if (ret < 0) {
errno = -ret;
return -1;
}
return 0;
}

1
newlib/src/libgloss/metalsvm/syscall.h
View file

@ -69,6 +69,7 @@ extern "C" {
#define __NR_sendto 27
#define __NR_recvfrom 28
#define __NR_select 29
#define __NR_stat 30
#define _STR(token) #token
#define _SYSCALLSTR(x) "int $" _STR(x) " "