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Diffstat (limited to 'libgloss/sparc_leon/regwin_patch.c')
-rw-r--r--libgloss/sparc_leon/regwin_patch.c82
1 files changed, 0 insertions, 82 deletions
diff --git a/libgloss/sparc_leon/regwin_patch.c b/libgloss/sparc_leon/regwin_patch.c
deleted file mode 100644
index 319403e04..000000000
--- a/libgloss/sparc_leon/regwin_patch.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * Copyright (c) 2011 Aeroflex Gaisler
- *
- * BSD license:
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-
-#include <asm-leon/leon.h>
-#include <asm-leon/leonstack.h>
-#include <asm-leon/asmmacro.h>
-
-extern volatile unsigned int __window_overflow_rettseq[3];
-extern volatile unsigned int __window_overflow_slow1[2];
-
-static unsigned int installed = 0;
-static unsigned int save__window_overflow_rettseq[3];
-
-int
-install_winoverflow_hook (void (*func) (void))
-{
- if (installed)
- {
- return 0;
- }
- if (!installed)
- {
- /*
- a7 50 00 00 rd %wim, %l3
- ae 10 00 01 mov %g1, %l7
- 83 34 e0 01 srl %l3, 1, %g1
-
- 81 c4 40 00 jmp %l1
- 81 cc 80 00 rett %l2 */
- save__window_overflow_rettseq[0] = __window_overflow_rettseq[0];
- save__window_overflow_rettseq[1] = __window_overflow_rettseq[1];
- save__window_overflow_rettseq[2] = __window_overflow_rettseq[2];
-
- /*29 10 00 31 sethi %hi(0x4000c400), %l4
- 81 c5 22 48 jmp %l4 + 0x248
- 01 00 00 00 nop */
-
- __window_overflow_rettseq[0] = ((((unsigned int) func) >> 10) & 0x3fffff) | 0x29000000; /* upper 22 */
- __window_overflow_rettseq[1] = ((((unsigned int) func)) & 0x03ff) | 0x81c52000; /* lower 10 */
- __window_overflow_rettseq[2] = 0x01000000; /* nop */
-
- sparc_leon23_icache_flush ();
- installed = 1;
- }
- return 0;
-}
-
-void
-uninstall_winoverflow_hook ()
-{
- if (installed)
- {
- __window_overflow_rettseq[0] = save__window_overflow_rettseq[0];
- __window_overflow_rettseq[1] = save__window_overflow_rettseq[1];
- __window_overflow_rettseq[2] = save__window_overflow_rettseq[2];
-
- sparc_leon23_icache_flush ();
- installed = 0;
- }
-}