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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libc/] [reent/] [signalr.c] - Rev 290
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/* 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 ANSI_SYNOPSIS #include <reent.h> int _kill_r(struct _reent *<[ptr]>, int <[pid]>, int <[sig]>); TRAD_SYNOPSIS #include <reent.h> int _kill_r(<[ptr]>, <[pid]>, <[sig]>) 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 _DEFUN (_kill_r, (ptr, pid, sig), struct _reent *ptr _AND int pid _AND int sig) { int ret; errno = 0; if ((ret = _kill (pid, sig)) == -1 && errno != 0) ptr->_errno = errno; return ret; } /* FUNCTION <<_getpid_r>>---Reentrant version of getpid INDEX _getpid_r ANSI_SYNOPSIS #include <reent.h> int _getpid_r(struct _reent *<[ptr]>); TRAD_SYNOPSIS #include <reent.h> int _getpid_r(<[ptr]>) 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 _DEFUN (_getpid_r, (ptr), struct _reent *ptr) { int ret; ret = _getpid (); return ret; } #endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */
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