88 lines
1.6 KiB
C
88 lines
1.6 KiB
C
/* Reentrant versions of syscalls need to support signal/raise.
|
|
These implementations just call the usual system calls. */
|
|
|
|
#include <reent.h>
|
|
#include <signal.h>
|
|
#include <unistd.h>
|
|
#include <_syslist.h>
|
|
|
|
/* Some targets provides their own versions of these functions. Those
|
|
targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS. */
|
|
|
|
#ifdef _REENT_ONLY
|
|
#ifndef REENTRANT_SYSCALLS_PROVIDED
|
|
#define REENTRANT_SYSCALLS_PROVIDED
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef REENTRANT_SYSCALLS_PROVIDED
|
|
|
|
int _dummy_link_syscalls = 1;
|
|
|
|
#else
|
|
|
|
/* We use the errno variable used by the system dependent layer. */
|
|
#undef errno
|
|
extern int errno;
|
|
|
|
/*
|
|
FUNCTION
|
|
<<_kill_r>>---Reentrant version of kill
|
|
|
|
INDEX
|
|
_kill_r
|
|
|
|
SYNOPSIS
|
|
#include <reent.h>
|
|
int _kill_r(struct _reent *<[ptr]>, int <[pid]>, int <[sig]>);
|
|
|
|
DESCRIPTION
|
|
This is a reentrant version of <<kill>>. It
|
|
takes a pointer to the global data block, which holds
|
|
<<errno>>.
|
|
*/
|
|
|
|
int
|
|
_kill_r (struct _reent *ptr,
|
|
int pid,
|
|
int sig)
|
|
{
|
|
int ret;
|
|
|
|
errno = 0;
|
|
if ((ret = _kill (pid, sig)) == -1 && errno != 0)
|
|
ptr->_errno = errno;
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
NEWPAGE
|
|
FUNCTION
|
|
<<_getpid_r>>---Reentrant version of getpid
|
|
|
|
INDEX
|
|
_getpid_r
|
|
|
|
SYNOPSIS
|
|
#include <reent.h>
|
|
int _getpid_r(struct _reent *<[ptr]>);
|
|
|
|
DESCRIPTION
|
|
This is a reentrant version of <<getpid>>. It
|
|
takes a pointer to the global data block, which holds
|
|
<<errno>>.
|
|
|
|
We never need <<errno>>, of course, but for consistency we
|
|
still must have the reentrant pointer argument.
|
|
*/
|
|
|
|
int
|
|
_getpid_r (struct _reent *ptr)
|
|
{
|
|
int ret;
|
|
ret = _getpid ();
|
|
return ret;
|
|
}
|
|
|
|
#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */
|