OpenCores
URL https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk

Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [libgloss/] [arm/] [linux-syscalls1.c] - Blame information for rev 357

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 207 jeremybenn
/** Linux system call interface.
2
 * Written by Shaun Jackman <sjackman@gmail.com>.
3
 * Copyright 2006 Pathway Connectivity
4
 *
5
 * Permission to use, copy, modify, and distribute this software
6
 * is freely granted, provided that this notice is preserved.
7
 */
8
 
9
#include <errno.h>
10
#include <stdint.h>
11
 
12
extern char _end[];
13
static void *curbrk = _end;
14
 
15
extern void *_brk(void *addr);
16
 
17
int brk(void *addr)
18
{
19
        void *newbrk;
20
        if (curbrk == addr)
21
                return 0;
22
        newbrk = _brk(addr);
23
        curbrk = newbrk;
24
        if (newbrk < addr) {
25
                errno = ENOMEM;
26
                return -1;
27
        }
28
        return 0;
29
}
30
 
31
void *_sbrk(intptr_t incr)
32
{
33
        void *oldbrk = curbrk;
34
        if (brk(oldbrk + incr) == -1)
35
                return (void *)-1;
36
        return oldbrk;
37
}
38
 
39
void *sbrk(intptr_t incr) __attribute__((alias("_sbrk")));
40
 
41
int _set_errno(int n)
42
{
43
        if (n < 0) {
44
                errno = -n;
45
                return -1;
46
        }
47
        return n;
48
}
49
 
50
#include <sys/wait.h>
51
 
52
struct rusage;
53
 
54
pid_t wait4(pid_t pid, int *status, int options, struct rusage *rusage);
55
 
56
pid_t _wait(int *status)
57
{
58
        return wait4(-1, status, 0, NULL);
59
}
60
 
61
pid_t waitpid(pid_t pid, int *status, int options)
62
{
63
        return wait4(pid, status, options, NULL);
64
}
65
 
66
extern int _reboot(int magic, int magic2, int flag, void *arg);
67
 
68
int reboot(int flag)
69
{
70
        return _reboot(0xfee1dead, 0x28121969, flag, NULL);
71
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.