gdb.h

此程式庫有許多的zigbee程式源碼

#ifndef GDB_H
#define GDB_H

#ifdef GDB
#include "spr_defs.h"

//--------------------------------------------------------------------------
//  Utilities

// Move from architecture special register (SPR)
#define MFSPR(_spr_)                                      \
({  long _result_;                                        \
    asm volatile ("l.mfspr %0, r0, %1;"                   \
        : "=r"(_result_)                                  \
        : "K"(_spr_)                                      \
    );                                                    \
    _result_;})

// Move data to architecture special registers (SPR)
#define MTSPR(_spr_, _val_)                               \
({  long val = _val_;                                     \
    asm volatile ("l.mtspr r0, %0, %1;"                   \
        :                                                 \
        : "r"(val), "K"(_spr_)                            \
    );                                                    \
    })

#ifndef WRITE_REG_32
#define WRITE_REG_32(A,B) (*(volatile unsigned long *)(A)) = (B)
#define READ_REG_32(A)    (*(volatile unsigned long *)(A))
#endif

//--------------------------------------------------------------------------
//  support
// HAL_BREAKPOINT() is a code sequence that will cause a breakpoint to
//    occur if executed.
// HAL_BREAKINST is the value of the breakpoint instruction and...
// HAL_BREAKINST_SIZE is its size in bytes and...
// HAL_BREAKINST_TYPE is its type.

#define HAL_SET_STACK_PTR()                               \
({  asm volatile ("l.movhi r1,0xf001");                   \
    asm volatile ("l.ori   r1,r1,0x6800");                \
    })

#define HAL_GDB_INIT_PPTR   ((void(**)(void))0xf0017008)
#define HAL_BREAKPOINT_PPTR ((void(**)(void))0xf0017004)

// Enable both tick timer and external interrupts in the Supervisor Register
#define HAL_ENABLE_INTERRUPTS()                           \
    MTSPR(SPR_SR, MFSPR(SPR_SR) | (SPR_SR_IEE|SPR_SR_TEE))

#define HAL_GDB_INIT()                                              \
({  HAL_SET_STACK_PTR();                                            \
    WRITE_REG_32(0x10000000, READ_REG_32(0x10000000) | 0x00001000); \
    (**HAL_GDB_INIT_PPTR)();                                        \
    HAL_ENABLE_INTERRUPTS();                                        \
    })

#define HAL_BREAKPOINT() (**HAL_BREAKPOINT_PPTR)()

#else
#define HAL_ENABLE_INTERRUPTS()
#define HAL_GDB_INIT()
#define HAL_BREAKPOINT()
#endif
#endif