diff options
Diffstat (limited to 'arch/tile/include/asm/backtrace.h')
| -rw-r--r-- | arch/tile/include/asm/backtrace.h | 82 |
1 files changed, 23 insertions, 59 deletions
diff --git a/arch/tile/include/asm/backtrace.h b/arch/tile/include/asm/backtrace.h index f18887d8239..bd5399a69ed 100644 --- a/arch/tile/include/asm/backtrace.h +++ b/arch/tile/include/asm/backtrace.h @@ -12,80 +12,41 @@ * more details. */ -#ifndef _TILE_BACKTRACE_H -#define _TILE_BACKTRACE_H - - +#ifndef _ASM_TILE_BACKTRACE_H +#define _ASM_TILE_BACKTRACE_H #include <linux/types.h> -#include <arch/chip.h> - -#if defined(__tile__) -typedef unsigned long VirtualAddress; -#elif CHIP_VA_WIDTH() > 32 -typedef unsigned long long VirtualAddress; -#else -typedef unsigned int VirtualAddress; -#endif - - -/** Reads 'size' bytes from 'address' and writes the data to 'result'. +/* 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, - VirtualAddress address, + unsigned long address, unsigned int size, void *extra); typedef struct { - /** Current PC. */ - VirtualAddress pc; + /* Current PC. */ + unsigned long pc; - /** Current stack pointer value. */ - VirtualAddress sp; + /* Current stack pointer value. */ + unsigned long sp; - /** Current frame pointer value (i.e. caller's stack pointer) */ - VirtualAddress fp; + /* Current frame pointer value (i.e. caller's stack pointer) */ + unsigned long fp; - /** Internal use only: caller's PC for first frame. */ - VirtualAddress initial_frame_caller_pc; + /* Internal use only: caller's PC for first frame. */ + unsigned long initial_frame_caller_pc; - /** Internal use only: callback to read memory. */ + /* Internal use only: callback to read memory. */ BacktraceMemoryReader read_memory_func; - /** Internal use only: arbitrary argument to read_memory_func. */ + /* Internal use only: arbitrary argument to read_memory_func. */ void *read_memory_func_extra; } BacktraceIterator; -/** Initializes a backtracer to start from the given location. - * - * If the frame pointer cannot be determined it is set to -1. - * - * @param state The state to be filled in. - * @param read_memory_func A callback that reads memory. If NULL, a default - * value is provided. - * @param read_memory_func_extra An arbitrary argument to read_memory_func. - * @param pc The current PC. - * @param lr The current value of the 'lr' register. - * @param sp The current value of the 'sp' register. - * @param r52 The current value of the 'r52' register. - */ -extern void backtrace_init(BacktraceIterator *state, - BacktraceMemoryReader read_memory_func, - void *read_memory_func_extra, - VirtualAddress pc, VirtualAddress lr, - VirtualAddress sp, VirtualAddress r52); - - -/** Advances the backtracing state to the calling frame, returning - * true iff successful. - */ -extern bool backtrace_next(BacktraceIterator *state); - - typedef enum { /* We have no idea what the caller's pc is. */ @@ -138,7 +99,7 @@ enum { }; -/** Internal constants used to define 'info' operands. */ +/* Internal constants used to define 'info' operands. */ enum { /* 0 and 1 are reserved, as are all negative numbers. */ @@ -147,13 +108,10 @@ enum { CALLER_SP_IN_R52_BASE = 4, CALLER_SP_OFFSET_BASE = 8, - - /* Marks the entry point of certain functions. */ - ENTRY_POINT_INFO_OP = 16 }; -/** Current backtracer state describing where it thinks the caller is. */ +/* Current backtracer state describing where it thinks the caller is. */ typedef struct { /* * Public fields @@ -192,7 +150,13 @@ typedef struct { } 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 /* _TILE_BACKTRACE_H */ +#endif /* _ASM_TILE_BACKTRACE_H */ |