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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [libgloss/] [arm/] [linux-syscalls1.c] - Blame information for rev 258

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Line No. Rev Author Line
1 207 jeremybenn
/** Linux system call interface.
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 * Written by Shaun Jackman <sjackman@gmail.com>.
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 * Copyright 2006 Pathway Connectivity
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 *
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 * Permission to use, copy, modify, and distribute this software
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 * is freely granted, provided that this notice is preserved.
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 */
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#include <errno.h>
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#include <stdint.h>
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extern char _end[];
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static void *curbrk = _end;
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extern void *_brk(void *addr);
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int brk(void *addr)
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{
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        void *newbrk;
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        if (curbrk == addr)
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                return 0;
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        newbrk = _brk(addr);
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        curbrk = newbrk;
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        if (newbrk < addr) {
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                errno = ENOMEM;
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                return -1;
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        }
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        return 0;
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}
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void *_sbrk(intptr_t incr)
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{
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        void *oldbrk = curbrk;
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        if (brk(oldbrk + incr) == -1)
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                return (void *)-1;
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        return oldbrk;
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}
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void *sbrk(intptr_t incr) __attribute__((alias("_sbrk")));
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int _set_errno(int n)
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{
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        if (n < 0) {
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                errno = -n;
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                return -1;
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        }
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        return n;
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}
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#include <sys/wait.h>
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struct rusage;
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pid_t wait4(pid_t pid, int *status, int options, struct rusage *rusage);
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pid_t _wait(int *status)
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{
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        return wait4(-1, status, 0, NULL);
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}
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pid_t waitpid(pid_t pid, int *status, int options)
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{
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        return wait4(pid, status, options, NULL);
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}
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extern int _reboot(int magic, int magic2, int flag, void *arg);
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int reboot(int flag)
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{
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        return _reboot(0xfee1dead, 0x28121969, flag, NULL);
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}

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