diff options
Diffstat (limited to 'c/src/lib/libcpu/sparc/tbr/tbr.c')
-rw-r--r-- | c/src/lib/libcpu/sparc/tbr/tbr.c | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/c/src/lib/libcpu/sparc/tbr/tbr.c b/c/src/lib/libcpu/sparc/tbr/tbr.c deleted file mode 100644 index 7106c58db2..0000000000 --- a/c/src/lib/libcpu/sparc/tbr/tbr.c +++ /dev/null @@ -1,50 +0,0 @@ -/* - * SPARC Dependent Source - * - * COPYRIGHT (c) 1989-1999. - * On-Line Applications Research Corporation (OAR). - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.OARcorp.com/rtems/license.html. - * - * $Id$ - */ - -#include <libcpu/tbr.h> - -void -sparc_init_tbr () -{ -#ifndef NO_TABLE_MOVE - unsigned32 trap_table_start; - unsigned32 tbr_value; - CPU_Trap_table_entry *old_tbr; - CPU_Trap_table_entry *trap_table; - - /* - * Install the executive's trap table. All entries from the original - * trap table are copied into the executive's trap table. This is essential - * since this preserves critical trap handlers such as the window underflow - * and overflow handlers. It is the responsibility of the BSP to provide - * install these in the initial trap table. - */ - - - trap_table_start = (unsigned32) & _CPU_Trap_Table_area; - if (trap_table_start & (SPARC_TRAP_TABLE_ALIGNMENT - 1)) - trap_table_start = (trap_table_start + SPARC_TRAP_TABLE_ALIGNMENT) & - ~(SPARC_TRAP_TABLE_ALIGNMENT - 1); - - trap_table = (CPU_Trap_table_entry *) trap_table_start; - - sparc_get_tbr (tbr_value); - - old_tbr = (CPU_Trap_table_entry *) (tbr_value & 0xfffff000); - - memcpy (trap_table, (void *) old_tbr, 256 * sizeof (CPU_Trap_table_entry)); - - sparc_set_tbr (trap_table_start); - -#endif -} |