diff options
Diffstat (limited to 'libpthread/linuxthreads/sysdeps/sparc/sparc64')
| -rw-r--r-- | libpthread/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h | 77 | ||||
| -rw-r--r-- | libpthread/linuxthreads/sysdeps/sparc/sparc64/sigcontextinfo.h | 32 |
2 files changed, 109 insertions, 0 deletions
diff --git a/libpthread/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h b/libpthread/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h new file mode 100644 index 000000000..5560003fc --- /dev/null +++ b/libpthread/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h @@ -0,0 +1,77 @@ +/* Machine-dependent pthreads configuration and inline functions. + Sparc v9 version. + Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson <rth@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; +} + + +/* 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)) + + +/* Compare-and-swap for semaphores. */ + +#define HAS_COMPARE_AND_SWAP +PT_EI int +__compare_and_swap (long int *p, long int oldval, long int newval) +{ + long int readval; + + __asm__ __volatile__ ("casx [%4], %2, %0" + : "=r"(readval), "=m"(*p) + : "r"(oldval), "m"(*p), "r"(p), "0"(newval)); + + return readval == oldval; +} + +/* 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) diff --git a/libpthread/linuxthreads/sysdeps/sparc/sparc64/sigcontextinfo.h b/libpthread/linuxthreads/sysdeps/sparc/sparc64/sigcontextinfo.h new file mode 100644 index 000000000..47e0d27f8 --- /dev/null +++ b/libpthread/linuxthreads/sysdeps/sparc/sparc64/sigcontextinfo.h @@ -0,0 +1,32 @@ +/* Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jj@ultra.linux.cz>, 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. */ + +#ifndef STACK_BIAS +#define STACK_BIAS 2047 +#endif +#define SIGCONTEXT struct sigcontext * +#define SIGCONTEXT_EXTRA_ARGS +#define GET_PC(__ctx) ((void *) ((__ctx)->sigc_regs.tpc)) +#define ADVANCE_STACK_FRAME(__next) \ + ((void *) (((unsigned long *) (((unsigned long int) (__next)) \ + + STACK_BIAS))+14)) +#define GET_STACK(__ctx) ((void *) ((__ctx)->sigc_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)) |