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Diffstat (limited to 'arch/mips/lib-64/watch.S')
| -rw-r--r-- | arch/mips/lib-64/watch.S | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/arch/mips/lib-64/watch.S b/arch/mips/lib-64/watch.S deleted file mode 100644 index f91434013695..000000000000 --- a/arch/mips/lib-64/watch.S +++ /dev/null | |||
| @@ -1,57 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * This file is subject to the terms and conditions of the GNU General Public | ||
| 3 | * License. See the file "COPYING" in the main directory of this archive | ||
| 4 | * for more details. | ||
| 5 | * | ||
| 6 | * Kernel debug stuff to use the Watch registers. | ||
| 7 | * Useful to find stack overflows, dangling pointers etc. | ||
| 8 | * | ||
| 9 | * Copyright (C) 1995, 1996, 1999, 2001 by Ralf Baechle | ||
| 10 | */ | ||
| 11 | #include <asm/asm.h> | ||
| 12 | #include <asm/mipsregs.h> | ||
| 13 | #include <asm/regdef.h> | ||
| 14 | |||
| 15 | .set noreorder | ||
| 16 | /* | ||
| 17 | * Parameter: a0 - physical address to watch | ||
| 18 | * a1 - set bit #1 to trap on load references | ||
| 19 | * bit #0 to trap on store references | ||
| 20 | * Results : none | ||
| 21 | */ | ||
| 22 | LEAF(__watch_set) | ||
| 23 | ori a0, 7 | ||
| 24 | xori a0, 7 | ||
| 25 | or a0, a1 | ||
| 26 | mtc0 a0, CP0_WATCHLO | ||
| 27 | sd a0, watch_savelo | ||
| 28 | dsrl32 a0, a0, 0 | ||
| 29 | |||
| 30 | jr ra | ||
| 31 | mtc0 zero, CP0_WATCHHI | ||
| 32 | END(__watch_set) | ||
| 33 | |||
| 34 | /* | ||
| 35 | * Parameter: none | ||
| 36 | * Results : none | ||
| 37 | */ | ||
| 38 | LEAF(__watch_clear) | ||
| 39 | jr ra | ||
| 40 | mtc0 zero, CP0_WATCHLO | ||
| 41 | END(__watch_clear) | ||
| 42 | |||
| 43 | /* | ||
| 44 | * Parameter: none | ||
| 45 | * Results : none | ||
| 46 | */ | ||
| 47 | LEAF(__watch_reenable) | ||
| 48 | ld t0, watch_savelo | ||
| 49 | jr ra | ||
| 50 | mtc0 t0, CP0_WATCHLO | ||
| 51 | END(__watch_reenable) | ||
| 52 | |||
| 53 | /* | ||
| 54 | * Saved value of the c0_watchlo register for watch_reenable() | ||
| 55 | */ | ||
| 56 | .local watch_savelo | ||
| 57 | .comm watch_savelo, 8, 8 | ||
