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glibc  2.9
cacheflush.c
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00001 /* Flush the insn cache after GCC writes a closure on the stack.  Mach/MIPS.
00002    Copyright (C) 1996, 1997 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <mach.h>
00021 #include <mach/vm_attributes.h>
00022 
00023 /* Stupid name, but this is what GCC generates (config/mips/mips.h).  */
00024 void
00025 cacheflush (void *addr, unsigned size, int flag)
00026 {
00027   vm_machine_attribute_val_t val;
00028 
00029   switch (flag)
00030     {
00031     case 0:                 /* ? */
00032       val = MATTR_VAL_DCACHE_FLUSH;
00033     case 1:                 /* This is the only value GCC uses.  */
00034       val = MATTR_VAL_ICACHE_FLUSH;
00035       break;
00036     default:
00037       val = MATTR_VAL_CACHE_FLUSH;
00038     }
00039 
00040   __vm_machine_attribute (__mach_task_self (),
00041                        (vm_address_t) addr, size,
00042                        MATTR_CACHE,
00043                        &val);
00044 }