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-rw-r--r--arch/tile/include/asm/backtrace.h162
1 files changed, 0 insertions, 162 deletions
diff --git a/arch/tile/include/asm/backtrace.h b/arch/tile/include/asm/backtrace.h
deleted file mode 100644
index bd5399a69edf..000000000000
--- a/arch/tile/include/asm/backtrace.h
+++ /dev/null
@@ -1,162 +0,0 @@
-/*
- * Copyright 2010 Tilera Corporation. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation, version 2.
- *
- * This program 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, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for
- * more details.
- */
-
-#ifndef _ASM_TILE_BACKTRACE_H
-#define _ASM_TILE_BACKTRACE_H
-
-#include <linux/types.h>
-
-/* Reads 'size' bytes from 'address' and writes the data to 'result'.
- * Returns true if successful, else false (e.g. memory not readable).
- */
-typedef bool (*BacktraceMemoryReader)(void *result,
- unsigned long address,
- unsigned int size,
- void *extra);
-
-typedef struct {
- /* Current PC. */
- unsigned long pc;
-
- /* Current stack pointer value. */
- unsigned long sp;
-
- /* Current frame pointer value (i.e. caller's stack pointer) */
- unsigned long fp;
-
- /* Internal use only: caller's PC for first frame. */
- unsigned long initial_frame_caller_pc;
-
- /* Internal use only: callback to read memory. */
- BacktraceMemoryReader read_memory_func;
-
- /* Internal use only: arbitrary argument to read_memory_func. */
- void *read_memory_func_extra;
-
-} BacktraceIterator;
-
-
-typedef enum {
-
- /* We have no idea what the caller's pc is. */
- PC_LOC_UNKNOWN,
-
- /* The caller's pc is currently in lr. */
- PC_LOC_IN_LR,
-
- /* The caller's pc can be found by dereferencing the caller's sp. */
- PC_LOC_ON_STACK
-
-} CallerPCLocation;
-
-
-typedef enum {
-
- /* We have no idea what the caller's sp is. */
- SP_LOC_UNKNOWN,
-
- /* The caller's sp is currently in r52. */
- SP_LOC_IN_R52,
-
- /* The caller's sp can be found by adding a certain constant
- * to the current value of sp.
- */
- SP_LOC_OFFSET
-
-} CallerSPLocation;
-
-
-/* Bit values ORed into CALLER_* values for info ops. */
-enum {
- /* Setting the low bit on any of these values means the info op
- * applies only to one bundle ago.
- */
- ONE_BUNDLE_AGO_FLAG = 1,
-
- /* Setting this bit on a CALLER_SP_* value means the PC is in LR.
- * If not set, PC is on the stack.
- */
- PC_IN_LR_FLAG = 2,
-
- /* This many of the low bits of a CALLER_SP_* value are for the
- * flag bits above.
- */
- NUM_INFO_OP_FLAGS = 2,
-
- /* We cannot have one in the memory pipe so this is the maximum. */
- MAX_INFO_OPS_PER_BUNDLE = 2
-};
-
-
-/* Internal constants used to define 'info' operands. */
-enum {
- /* 0 and 1 are reserved, as are all negative numbers. */
-
- CALLER_UNKNOWN_BASE = 2,
-
- CALLER_SP_IN_R52_BASE = 4,
-
- CALLER_SP_OFFSET_BASE = 8,
-};
-
-
-/* Current backtracer state describing where it thinks the caller is. */
-typedef struct {
- /*
- * Public fields
- */
-
- /* How do we find the caller's PC? */
- CallerPCLocation pc_location : 8;
-
- /* How do we find the caller's SP? */
- CallerSPLocation sp_location : 8;
-
- /* If sp_location == SP_LOC_OFFSET, then caller_sp == sp +
- * loc->sp_offset. Else this field is undefined.
- */
- uint16_t sp_offset;
-
- /* In the most recently visited bundle a terminating bundle? */
- bool at_terminating_bundle;
-
- /*
- * Private fields
- */
-
- /* Will the forward scanner see someone clobbering sp
- * (i.e. changing it with something other than addi sp, sp, N?)
- */
- bool sp_clobber_follows;
-
- /* Operand to next "visible" info op (no more than one bundle past
- * the next terminating bundle), or -32768 if none.
- */
- int16_t next_info_operand;
-
- /* Is the info of in next_info_op in the very next bundle? */
- bool is_next_info_operand_adjacent;
-
-} CallerLocation;
-
-extern void backtrace_init(BacktraceIterator *state,
- BacktraceMemoryReader read_memory_func,
- void *read_memory_func_extra,
- unsigned long pc, unsigned long lr,
- unsigned long sp, unsigned long r52);
-
-
-extern bool backtrace_next(BacktraceIterator *state);
-
-#endif /* _ASM_TILE_BACKTRACE_H */
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