[uClibc-cvs] uClibc/libpthread/linuxthreads/sysdeps/sparc pt-machine.h,NONE,1.1 sigcontextinfo.h,NONE,1.1

[Erik Andersen]

Update of /var/cvs/uClibc/libpthread/linuxthreads/sysdeps/sparc
In directory winder:/tmp/cvs-serv29546/libpthread/linuxthreads/sysdeps/sparc

Added Files:
	pt-machine.h sigcontextinfo.h 
Log Message:
Rework sparc architecture support so it will compile
and run.  Seems to be working...
 -Erik


--- NEW FILE: pt-machine.h ---
/* Machine-dependent pthreads configuration and inline functions.
   sparc version.
   Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Richard Henderson <rth at tamu.edu>.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#ifndef PT_EI
# define PT_EI extern inline
#endif

/* Spinlock implementation; required.  */
PT_EI int
testandset (int *spinlock)
{
  int ret;

  __asm__ __volatile__("ldstub %1,%0"
	: "=r"(ret), "=m"(*spinlock)
	: "m"(*spinlock));

  return ret;
}


/* Spinlock release; default is just set to zero.  */
#define RELEASE(spinlock) \
  __asm__ __volatile__("stbar; stb %1,%0" : "=m"(*(spinlock)) : "r"(0));


/* Get some notion of the current stack.  Need not be exactly the top
   of the stack, just something somewhere in the current frame.  */
#define CURRENT_STACK_FRAME  stack_pointer
register char * stack_pointer __asm__("%sp");


/* Registers %g6 and %g7 are reserved by the ABI for "system use".  It
   happens that Solaris uses %g6 for the thread pointer -- we do the same.  */
struct _pthread_descr_struct;
register struct _pthread_descr_struct *__thread_self __asm__("%g6");

/* Return the thread descriptor for the current thread.  */
#define THREAD_SELF  __thread_self

/* Initialize the thread-unique value.  */
#define INIT_THREAD_SELF(descr, nr)  (__thread_self = (descr))

/* Access to data in the thread descriptor is easy.  */
#define THREAD_GETMEM(descr, member) __thread_self->member
#define THREAD_GETMEM_NC(descr, member) __thread_self->member
#define THREAD_SETMEM(descr, member, value) __thread_self->member = (value)
#define THREAD_SETMEM_NC(descr, member, value) __thread_self->member = (value)

--- NEW FILE: sigcontextinfo.h ---
/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Jakub Jelinek <jakub at redhat.com>, 1999.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#define SIGCONTEXT struct sigcontext *
#define SIGCONTEXT_EXTRA_ARGS
#define GET_PC(__ctx)	((void *) ((__ctx)->si_regs.pc))
#define ADVANCE_STACK_FRAME(__next) \
	((void *) (((unsigned *)(__next))+14))

#define GET_STACK(__ctx)	((void *) (__ctx)->si_regs.u_regs[14])
#define GET_FRAME(__ctx)	ADVANCE_STACK_FRAME (GET_STACK(__ctx))
#define CALL_SIGHANDLER(handler, signo, ctx) \
  (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))