diff options
| -rw-r--r-- | ChangeLog | 30 | ||||
| -rw-r--r-- | hurd/Versions | 8 | ||||
| -rw-r--r-- | hurd/hurd.h | 4 | ||||
| -rw-r--r-- | hurd/hurd/fd.h | 26 | ||||
| -rw-r--r-- | hurd/hurd/port.h | 43 | ||||
| -rw-r--r-- | hurd/hurd/signal.h | 16 | ||||
| -rw-r--r-- | hurd/hurd/threadvar.h | 9 | ||||
| -rw-r--r-- | hurd/hurd/userlink.h | 20 | ||||
| -rw-r--r-- | mach/lock-intern.h | 20 | ||||
| -rw-r--r-- | mach/mach/mig_support.h | 3 | ||||
| -rw-r--r-- | mach/spin-lock.c | 1 | ||||
| -rw-r--r-- | sysdeps/generic/machine-lock.h | 12 | ||||
| -rw-r--r-- | sysdeps/mach/i386/machine-lock.h | 12 |
13 files changed, 204 insertions, 0 deletions
@@ -60,6 +60,36 @@ _POSIX_CHOWN_RESTRICTED is defined to 0. * io/tst-copy_file_range.c [!defined CLONE_NEWNS]: Do not include <sys/mount.h>. + * hurd/hurd.h (__hurd_fail): Always declare function, and provide inline + version only if __USE_EXTERN_INLINES is defined. + * hurd/hurd/fd.h (_hurd_fd_error_signal, _hurd_fd_error, __hurd_dfail, + __hurd_sockfail): Likewise. + (_hurd_fd_get): Always declare functions, and provide inline versions + only if __USE_EXTERN_INLINES and _LIBC are defined and IS_IN(libc). + * hurd/hurd/port.h (_hurd_port_init, _hurd_port_locked_get, + _hurd_port_get, _hurd_port_free, _hurd_port_locked_set, + _hurd_port_set): Always declare functions, and provide inline versions + only if __USE_EXTERN_INLINES and _LIBC are defined and + IS_IN(libc). + * hurd/hurd/signal.h (_hurd_self_sigstate, _hurd_critical_section_lock, + _hurd_critical_section_unlock): Likewise. + * hurd/hurd/threadvar.h (__hurd_threadvar_location_from_sp, + * __hurd_threadvar_location): Likewise. + * hurd/hurd/userlink.h (_hurd_userlink_link, _hurd_userlink_unlink, + _hurd_userlink_clear): Likewise. + * mach/lock-intern.h (__spin_lock_init, __spin_lock, __mutex_lock, + __mutex_unlock, __mutex_trylock): Always declare functions, and provide + inline versions only if __USE_EXTERN_INLINES and _LIBC are defined. + * mach/mach/mig_support.h (__mig_strncpy): Likewise. + * sysdeps/generic/machine-lock.h (__spin_unlock, __spin_try_lock, + __spin_lock_locked): Likewise. + * sysdeps/mach/i386/machine-lock.h (__spin_unlock, __spin_try_lock, + __spin_lock_locked): Likewise. + * mach/spin-lock.c (__USE_EXTERN_INLINES): Define to 1. + * hurd/Versions (libc: GLIBC_2.27): Add _hurd_fd_error_signal, + _hurd_fd_error, __hurd_dfail, __hurd_sockfail, _hurd_port_locked_set, + __hurd_threadvar_location_from_sp, __hurd_threadvar_location, + _hurd_userlink_link, _hurd_userlink_unlink, _hurd_userlink_clear. 2008-12-18 Thomas Schwinge <tschwinge@gnu.org> diff --git a/hurd/Versions b/hurd/Versions index b059405..363e246 100644 --- a/hurd/Versions +++ b/hurd/Versions @@ -130,6 +130,14 @@ libc { __errno_location; } GLIBC_2.27 { + # These always existed as inlines but the real functions were not exported. + _hurd_fd_error_signal; _hurd_fd_error; + __hurd_dfail; __hurd_sockfail; + _hurd_port_locked_set; + __hurd_threadvar_location_from_sp; + __hurd_threadvar_location; + _hurd_userlink_link; _hurd_userlink_unlink; _hurd_userlink_clear; + # "quasi-internal" functions _hurd_exec_paths; } diff --git a/hurd/hurd.h b/hurd/hurd.h index 7cf23b5..a0e2444 100644 --- a/hurd/hurd.h +++ b/hurd/hurd.h @@ -46,6 +46,9 @@ #define _HURD_H_EXTERN_INLINE __extern_inline #endif +extern int __hurd_fail (error_t err); + +#ifdef __USE_EXTERN_INLINES _HURD_H_EXTERN_INLINE int __hurd_fail (error_t err) { @@ -75,6 +78,7 @@ __hurd_fail (error_t err) errno = err; return -1; } +#endif /* Basic ports and info, initialized by startup. */ diff --git a/hurd/hurd/fd.h b/hurd/hurd/fd.h index 809a73f..9500a1b 100644 --- a/hurd/hurd/fd.h +++ b/hurd/hurd/fd.h @@ -59,6 +59,10 @@ extern struct mutex _hurd_dtable_lock; /* Locks those two variables. */ NULL. The cell is unlocked; when ready to use it, lock it and check for it being unused. */ +extern struct hurd_fd *_hurd_fd_get (int fd); + +#if defined __USE_EXTERN_INLINES && defined _LIBC +# if IS_IN (libc) _HURD_FD_H_EXTERN_INLINE struct hurd_fd * _hurd_fd_get (int fd) { @@ -91,6 +95,8 @@ _hurd_fd_get (int fd) return descriptor; } +# endif +#endif /* Evaluate EXPR with the variable `descriptor' bound to a pointer to the @@ -138,6 +144,9 @@ _hurd_fd_get (int fd) /* Check if ERR should generate a signal. Returns the signal to take, or zero if none. */ +extern int _hurd_fd_error_signal (error_t err); + +#ifdef __USE_EXTERN_INLINES _HURD_FD_H_EXTERN_INLINE int _hurd_fd_error_signal (error_t err) { @@ -154,11 +163,15 @@ _hurd_fd_error_signal (error_t err) return 0; } } +#endif /* Handle an error from an RPC on a file descriptor's port. You should always use this function to handle errors from RPCs made on file descriptor ports. Some errors are translated into signals. */ +extern error_t _hurd_fd_error (int fd, error_t err); + +#ifdef __USE_EXTERN_INLINES _HURD_FD_H_EXTERN_INLINE error_t _hurd_fd_error (int fd, error_t err) { @@ -171,20 +184,28 @@ _hurd_fd_error (int fd, error_t err) } return err; } +#endif /* Handle error code ERR from an RPC on file descriptor FD's port. Set `errno' to the appropriate error code, and always return -1. */ +extern int __hurd_dfail (int fd, error_t err); + +#ifdef __USE_EXTERN_INLINES _HURD_FD_H_EXTERN_INLINE int __hurd_dfail (int fd, error_t err) { errno = _hurd_fd_error (fd, err); return -1; } +#endif /* Likewise, but do not raise SIGPIPE on EPIPE if flags contain MSG_NOSIGNAL. */ +exern int __hurd_sockfail (int fd, int flags, error_t err); + +#ifdef __USE_EXTERN_INLINES _HURD_FD_H_EXTERN_INLINE int __hurd_sockfail (int fd, int flags, error_t err) { @@ -193,6 +214,7 @@ __hurd_sockfail (int fd, int flags, error_t err) errno = err; return -1; } +#endif /* Set up *FD to have PORT its server port, doing appropriate ctty magic. Does no locking or unlocking. */ @@ -258,6 +280,8 @@ extern int _hurd_select (int nfds, struct pollfd *pollfds, /* Apply AT_FLAGS on FLAGS, in preparation for calling __hurd_file_name_lookup. */ +#if defined __USE_EXTERN_INLINES && defined _LIBC +# if IS_IN (libc) _HURD_FD_H_EXTERN_INLINE error_t __hurd_at_flags (int *at_flags, int *flags) { @@ -274,6 +298,8 @@ __hurd_at_flags (int *at_flags, int *flags) return 0; } +# endif +#endif /* Variant of file_name_lookup used in *at function implementations. AT_FLAGS may only contain AT_SYMLINK_FOLLOW or AT_SYMLINK_NOFOLLOW, diff --git a/hurd/hurd/port.h b/hurd/hurd/port.h index 78053e6..f1da869 100644 --- a/hurd/hurd/port.h +++ b/hurd/hurd/port.h @@ -60,6 +60,10 @@ struct hurd_port /* Initialize *PORT to INIT. */ +extern void _hurd_port_init (struct hurd_port *port, mach_port_t init); + +#if defined __USE_EXTERN_INLINES && defined _LIBC +# if IS_IN (libc) _HURD_PORT_H_EXTERN_INLINE void _hurd_port_init (struct hurd_port *port, mach_port_t init) { @@ -67,6 +71,8 @@ _hurd_port_init (struct hurd_port *port, mach_port_t init) port->users = NULL; port->port = init; } +# endif +#endif /* Cleanup function for non-local exits. */ @@ -75,6 +81,12 @@ extern void _hurd_port_cleanup (void *, jmp_buf, int); /* Get a reference to *PORT, which is locked. Pass return value and LINK to _hurd_port_free when done. */ +extern mach_port_t +_hurd_port_locked_get (struct hurd_port *port, + struct hurd_userlink *link); + +#if defined __USE_EXTERN_INLINES && defined _LIBC +# if IS_IN (libc) _HURD_PORT_H_EXTERN_INLINE mach_port_t _hurd_port_locked_get (struct hurd_port *port, struct hurd_userlink *link) @@ -90,9 +102,17 @@ _hurd_port_locked_get (struct hurd_port *port, __spin_unlock (&port->lock); return result; } +# endif +#endif /* Same, but locks PORT first. */ +extern mach_port_t +_hurd_port_get (struct hurd_port *port, + struct hurd_userlink *link); + +#if defined __USE_EXTERN_INLINES && defined _LIBC +# if IS_IN (libc) _HURD_PORT_H_EXTERN_INLINE mach_port_t _hurd_port_get (struct hurd_port *port, struct hurd_userlink *link) @@ -104,10 +124,19 @@ _hurd_port_get (struct hurd_port *port, HURD_CRITICAL_END; return result; } +# endif +#endif /* Free a reference gotten with `USED_PORT = _hurd_port_get (PORT, LINK);' */ +extern void +_hurd_port_free (struct hurd_port *port, + struct hurd_userlink *link, + mach_port_t used_port); + +#if defined __USE_EXTERN_INLINES && defined _LIBC +# if IS_IN (libc) _HURD_PORT_H_EXTERN_INLINE void _hurd_port_free (struct hurd_port *port, struct hurd_userlink *link, @@ -127,11 +156,17 @@ _hurd_port_free (struct hurd_port *port, if (dealloc) __mach_port_deallocate (__mach_task_self (), used_port); } +# endif +#endif /* Set *PORT's port to NEWPORT. NEWPORT's reference is consumed by PORT->port. PORT->lock is locked. */ +extern void _hurd_port_locked_set (struct hurd_port *port, mach_port_t newport); + +#if defined __USE_EXTERN_INLINES && defined _LIBC +# if IS_IN (libc) _HURD_PORT_H_EXTERN_INLINE void _hurd_port_locked_set (struct hurd_port *port, mach_port_t newport) { @@ -142,9 +177,15 @@ _hurd_port_locked_set (struct hurd_port *port, mach_port_t newport) if (old != MACH_PORT_NULL) __mach_port_deallocate (__mach_task_self (), old); } +# endif +#endif /* Same, but locks PORT first. */ +extern void _hurd_port_set (struct hurd_port *port, mach_port_t newport); + +#if defined __USE_EXTERN_INLINES && defined _LIBC +# if IS_IN (libc) _HURD_PORT_H_EXTERN_INLINE void _hurd_port_set (struct hurd_port *port, mach_port_t newport) { @@ -153,6 +194,8 @@ _hurd_port_set (struct hurd_port *port, mach_port_t newport) _hurd_port_locked_set (port, newport); HURD_CRITICAL_END; } +# endif +#endif #endif /* hurd/port.h */ diff --git a/hurd/hurd/signal.h b/hurd/hurd/signal.h index 971a0e3..1d9c7d8 100644 --- a/hurd/hurd/signal.h +++ b/hurd/hurd/signal.h @@ -129,6 +129,8 @@ extern struct hurd_sigstate *_hurd_self_sigstate (void) #define _HURD_SIGNAL_H_EXTERN_INLINE __extern_inline #endif +#if defined __USE_EXTERN_INLINES && defined _LIBC +# if IS_IN (libc) _HURD_SIGNAL_H_EXTERN_INLINE struct hurd_sigstate * _hurd_self_sigstate (void) { @@ -138,6 +140,8 @@ _hurd_self_sigstate (void) *location = _hurd_thread_sigstate (__mach_thread_self ()); return *location; } +# endif +#endif /* Thread listening on our message port; also called the "signal thread". */ @@ -164,6 +168,10 @@ extern int _hurd_core_limit; interrupted lest the signal handler try to take the same lock and deadlock result. */ +extern void *_hurd_critical_section_lock (void); + +#if defined __USE_EXTERN_INLINES && defined _LIBC +# if IS_IN (libc) _HURD_SIGNAL_H_EXTERN_INLINE void * _hurd_critical_section_lock (void) { @@ -188,7 +196,13 @@ _hurd_critical_section_lock (void) _hurd_critical_section_unlock to unlock it. */ return ss; } +# endif +#endif +extern void _hurd_critical_section_unlock (void *our_lock); + +#if defined __USE_EXTERN_INLINES && defined _LIBC +# if IS_IN (libc) _HURD_SIGNAL_H_EXTERN_INLINE void _hurd_critical_section_unlock (void *our_lock) { @@ -211,6 +225,8 @@ _hurd_critical_section_unlock (void *our_lock) __msg_sig_post (_hurd_msgport, 0, 0, __mach_task_self ()); } } +# endif +#endif /* Convenient macros for simple uses of critical sections. These two must be used as a pair at the same C scoping level. */ diff --git a/hurd/hurd/threadvar.h b/hurd/hurd/threadvar.h index 1727dac..b5fc29d 100644 --- a/hurd/hurd/threadvar.h +++ b/hurd/hurd/threadvar.h @@ -81,6 +81,9 @@ enum __hurd_threadvar_index extern unsigned long int *__hurd_threadvar_location_from_sp (enum __hurd_threadvar_index __index, void *__sp); + +#if defined __USE_EXTERN_INLINES && defined _LIBC +# if IS_IN (libc) _HURD_THREADVAR_H_EXTERN_INLINE unsigned long int * __hurd_threadvar_location_from_sp (enum __hurd_threadvar_index __index, void *__sp) @@ -92,6 +95,8 @@ __hurd_threadvar_location_from_sp (enum __hurd_threadvar_index __index, : (unsigned long int *) ((__stack & __hurd_threadvar_stack_mask) + __hurd_threadvar_stack_offset))[__index]; } +# endif +#endif #include <machine-sp.h> /* Define __thread_stack_pointer. */ @@ -105,12 +110,16 @@ __hurd_threadvar_location (enum __hurd_threadvar_index __index) __THROW the same stack frame by different threads. */ __attribute__ ((__const__)); +#if defined __USE_EXTERN_INLINES && defined _LIBC +# if IS_IN (libc) _HURD_THREADVAR_H_EXTERN_INLINE unsigned long int * __hurd_threadvar_location (enum __hurd_threadvar_index __index) { return __hurd_threadvar_location_from_sp (__index, __thread_stack_pointer ()); } +# endif +#endif #endif /* hurd/threadvar.h */ diff --git a/hurd/hurd/userlink.h b/hurd/hurd/userlink.h index 6acfaa8..66c0406 100644 --- a/hurd/hurd/userlink.h +++ b/hurd/hurd/userlink.h @@ -76,6 +76,12 @@ struct hurd_userlink /* Attach LINK to the chain of users at *CHAINP. */ +extern void +_hurd_userlink_link (struct hurd_userlink **chainp, + struct hurd_userlink *link); + +#if defined __USE_EXTERN_INLINES && defined _LIBC +# if IS_IN (libc) _HURD_USERLINK_H_EXTERN_INLINE void _hurd_userlink_link (struct hurd_userlink **chainp, struct hurd_userlink *link) @@ -96,11 +102,17 @@ _hurd_userlink_link (struct hurd_userlink **chainp, link->thread.prevp = thread_chainp; *thread_chainp = link; } +# endif +#endif /* Detach LINK from its chain. Returns nonzero iff this was the last user of the resource and it should be deallocated. */ +extern int _hurd_userlink_unlink (struct hurd_userlink *link); + +#if defined __USE_EXTERN_INLINES && defined _LIBC +# if IS_IN (libc) _HURD_USERLINK_H_EXTERN_INLINE int _hurd_userlink_unlink (struct hurd_userlink *link) { @@ -123,6 +135,8 @@ _hurd_userlink_unlink (struct hurd_userlink *link) return dealloc; } +# endif +#endif /* Clear all users from *CHAINP. Call this when the resource *CHAINP @@ -131,6 +145,10 @@ _hurd_userlink_unlink (struct hurd_userlink *link) value is zero, someone is still using the resource and they will deallocate it when they are finished. */ +extern int _hurd_userlink_clear (struct hurd_userlink **chainp); + +#if defined __USE_EXTERN_INLINES && defined _LIBC +# if IS_IN (libc) _HURD_USERLINK_H_EXTERN_INLINE int _hurd_userlink_clear (struct hurd_userlink **chainp) { @@ -143,5 +161,7 @@ _hurd_userlink_clear (struct hurd_userlink **chainp) *chainp = NULL; return 0; } +# endif +#endif #endif /* hurd/userlink.h */ diff --git a/mach/lock-intern.h b/mach/lock-intern.h index af28c3f..f8874c7 100644 --- a/mach/lock-intern.h +++ b/mach/lock-intern.h @@ -28,11 +28,15 @@ /* Initialize LOCK. */ +extern void __spin_lock_init (__spin_lock_t *__lock); + +#if defined __USE_EXTERN_INLINES && defined _LIBC _EXTERN_INLINE void __spin_lock_init (__spin_lock_t *__lock) { *__lock = __SPIN_LOCK_INITIALIZER; } +#endif /* Lock LOCK, blocking if we can't get it. */ @@ -40,12 +44,16 @@ extern void __spin_lock_solid (__spin_lock_t *__lock); /* Lock the spin lock LOCK. */ +extern void __spin_lock (__spin_lock_t *__lock); + +#if defined __USE_EXTERN_INLINES && defined _LIBC _EXTERN_INLINE void __spin_lock (__spin_lock_t *__lock) { if (! __spin_try_lock (__lock)) __spin_lock_solid (__lock); } +#endif /* Name space-clean internal interface to mutex locks. @@ -70,27 +78,39 @@ extern void __mutex_unlock_solid (void *__lock); /* Lock the mutex lock LOCK. */ +extern void __mutex_lock (void *__lock); + +#if defined __USE_EXTERN_INLINES && defined _LIBC _EXTERN_INLINE void __mutex_lock (void *__lock) { if (! __spin_try_lock ((__spin_lock_t *) __lock)) __mutex_lock_solid (__lock); } +#endif /* Unlock the mutex lock LOCK. */ +extern void __mutex_unlock (void *__lock); + +#if defined __USE_EXTERN_INLINES && defined _LIBC _EXTERN_INLINE void __mutex_unlock (void *__lock) { __spin_unlock ((__spin_lock_t *) __lock); __mutex_unlock_solid (__lock); } +#endif +extern int __mutex_trylock (void *__lock); + +#if defined __USE_EXTERN_INLINES && defined _LIBC _EXTERN_INLINE int __mutex_trylock (void *__lock) { return __spin_try_lock ((__spin_lock_t *) __lock); } +#endif #endif /* lock-intern.h */ diff --git a/mach/mach/mig_support.h b/mach/mach/mig_support.h index e876c09..56ec6df 100644 --- a/mach/mach/mig_support.h +++ b/mach/mach/mig_support.h @@ -66,6 +66,8 @@ extern void mig_reply_setup (const mach_msg_header_t *__request, /* Idiocy support function. */ extern vm_size_t mig_strncpy (char *__dst, const char *__src, vm_size_t __len); extern vm_size_t __mig_strncpy (char *__dst, const char *__src, vm_size_t); + +#if defined __USE_EXTERN_INLINES && defined _LIBC __extern_inline vm_size_t __mig_strncpy (char *__dst, const char *__src, vm_size_t __len) { @@ -76,6 +78,7 @@ mig_strncpy (char *__dst, const char *__src, vm_size_t __len) { return __mig_strncpy (__dst, __src, __len); } +#endif diff --git a/mach/spin-lock.c b/mach/spin-lock.c index aaebc55..1b1e69c 100644 --- a/mach/spin-lock.c +++ b/mach/spin-lock.c @@ -1,3 +1,4 @@ +#define __USE_EXTERN_INLINES 1 #define _EXTERN_INLINE /* Empty to define the real functions. */ #include "spin-lock.h" diff --git a/sysdeps/generic/machine-lock.h b/sysdeps/generic/machine-lock.h index 4aa2287..b3e6724 100644 --- a/sysdeps/generic/machine-lock.h +++ b/sysdeps/generic/machine-lock.h @@ -34,14 +34,21 @@ typedef volatile int __spin_lock_t; /* Unlock LOCK. */ +extern void __spin_unlock (__spin_lock_t *__lock); + +#if defined __USE_EXTERN_INLINES && defined _LIBC _EXTERN_INLINE void __spin_unlock (__spin_lock_t *__lock) { *__lock = 0; } +#endif /* Try to lock LOCK; return nonzero if we locked it, zero if another has. */ +extern int __spin_try_lock (__spin_lock_t *__lock); + +#if defined __USE_EXTERN_INLINES && defined _LIBC _EXTERN_INLINE int __spin_try_lock (__spin_lock_t *__lock) { @@ -50,14 +57,19 @@ __spin_try_lock (__spin_lock_t *__lock) *__lock = 1; return 1; } +#endif /* Return nonzero if LOCK is locked. */ +extern int __spin_lock_locked (__spin_lock_t *__lock); + +#if defined __USE_EXTERN_INLINES && defined _LIBC _EXTERN_INLINE int __spin_lock_locked (__spin_lock_t *__lock) { return *__lock != 0; } +#endif #endif /* machine-lock.h */ diff --git a/sysdeps/mach/i386/machine-lock.h b/sysdeps/mach/i386/machine-lock.h index 8a6a9ee..3c12021 100644 --- a/sysdeps/mach/i386/machine-lock.h +++ b/sysdeps/mach/i386/machine-lock.h @@ -34,6 +34,9 @@ typedef volatile int __spin_lock_t; /* Unlock LOCK. */ +extern void __spin_unlock (__spin_lock_t *__lock); + +#if defined __USE_EXTERN_INLINES && defined _LIBC _EXTERN_INLINE void __spin_unlock (__spin_lock_t *__lock) { @@ -42,9 +45,13 @@ __spin_unlock (__spin_lock_t *__lock) : "=&r" (__unlocked), "=m" (*__lock) : "0" (0) : "memory"); } +#endif /* Try to lock LOCK; return nonzero if we locked it, zero if another has. */ +extern int __spin_try_lock (__spin_lock_t *__lock); + +#if defined __USE_EXTERN_INLINES && defined _LIBC _EXTERN_INLINE int __spin_try_lock (__spin_lock_t *__lock) { @@ -54,14 +61,19 @@ __spin_try_lock (__spin_lock_t *__lock) : "memory"); return !__locked; } +#endif /* Return nonzero if LOCK is locked. */ +extern int __spin_lock_locked (__spin_lock_t *__lock); + +#if defined __USE_EXTERN_INLINES && defined _LIBC _EXTERN_INLINE int __spin_lock_locked (__spin_lock_t *__lock) { return *__lock != 0; } +#endif #endif /* machine-lock.h */ |