+Wed Jun 14 03:45:24 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * stdio/stdio.h (__validfp): Use ({...}) rather than a comma
+ expression, to avoid gcc's "value computed is not used" warning.
+
+ * libc-symbols.h (_elf_set_element): Give the set-element variable
+ an `unused' attribute.
+
+ * hurd/hurd/threadvar.h (__hurd_threadvar_location): Declare with
+ __attribute__ ((__const__)).
+ * hurd/hurd/signal.h (_hurd_self_sigstate): Likewise.
+
+ * hurd/hurd/userlink.h (_hurd_userlink_link): Properly set
+ LINK->resource.next->resource.prevp when appropriate, not
+ LINK->resource.next->thread.prevp!!!
+
Tue Jun 13 15:45:10 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* configure.in (libc_cv_asm_set_directive): Make sure that the
/* Get the sigstate of the current thread.
This uses a per-thread variable to optimize the lookup. */
+
+extern struct hurd_sigstate *_hurd_self_sigstate (void)
+ /* This declaration tells the compiler that the value is constant.
+ We assume this won't be called twice from the same stack frame
+ by different threads. */
+ __attribute__ ((__const__));
+
_EXTERN_INLINE struct hurd_sigstate *
_hurd_self_sigstate (void)
{
/* Internal per-thread variables for the Hurd.
-Copyright (C) 1994 Free Software Foundation, Inc.
+Copyright (C) 1994, 1995 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
/* Return the location of the current thread's value for the
per-thread variable with index INDEX. */
+extern unsigned long int *
+__hurd_threadvar_location (enum __hurd_threadvar_index __index)
+ /* This declaration tells the compiler that the value is constant
+ given the same argument. We assume this won't be called twice from
+ the same stack frame by different threads. */
+ __attribute__ ((__const__));
+
_EXTERN_INLINE unsigned long int *
__hurd_threadvar_location (enum __hurd_threadvar_index __index)
{
because it will need to be relocated at run time anyway. */
#define _elf_set_element(set, symbol) \
static const void *__elf_set_##set##_element_##symbol##__ \
- __attribute__ ((section (#set))) = &(symbol)
+ __attribute__ ((unused, section (#set))) = &(symbol)
#else
#define _elf_set_element(set, symbol) \
static const void *const __elf_set_##set##_element_##symbol##__ \
- __attribute__ ((section (#set))) = &(symbol)
+ __attribute__ ((unused, section (#set))) = &(symbol)
#endif
/* Define SET as a symbol set. This may be required (it is in a.out) to
See stdio/glue.c for what the confusing bit is about. */
#define __validfp(stream) \
(stream != NULL && \
- ((stream->__magic == _GLUEMAGIC && \
- (stream = *(((struct { int __magic; FILE **__p; } *) stream)->__p))), \
- (stream->__magic == _IOMAGIC)))
+ ({ if (stream->__magic == _GLUEMAGIC) \
+ stream = *((struct { int __magic; FILE **__p; } *) stream)->__p; \
+ stream->__magic == _IOMAGIC; }))
/* Clear the error and EOF indicators of STREAM. */
#define __clearerr(stream) ((stream)->__error = (stream)->__eof = 0)