LXR uboot/doc/README.bedbug

   1BEDBUG Support for U-Boot
   2--------------------------
   3
   4These changes implement the bedbug (emBEDded deBUGger) debugger in U-Boot.
   5A specific implementation is made for the AMCC 405 processor but other flavors
   6can be easily implemented.
   7
   8#####################
   9### Modifications ###
  10#####################
  11
  12./common/Makefile
  13        Included cmd_bedbug.c and bedbug.c in the Makefile.
  14
  15./common/command.c
  16        Added bedbug commands to command table.
  17
  18./common/board.c
  19        Added call to initialize debugger on startup.
  20
  21./arch/powerpc/cpu/ppc4xx/Makefile
  22        Added bedbug_405.c to the Makefile.
  23
  24./arch/powerpc/cpu/ppc4xx/start.S
  25        Added code to handle the debug exception (0x2000) on the 405.
  26        Also added code to handle critical exceptions since the debug
  27        is treated as critical on the 405.
  28
  29./arch/powerpc/cpu/ppc4xx/traps.c
  30        Added more detailed output for the program exception to tell
  31        if it is an illegal instruction, privileged instruction or
  32        a trap. Also added debug trap handler.
  33
  34./include/ppc_asm.tmpl
  35        Added code to handle critical exceptions
  36
  37#################
  38### New Stuff ###
  39#################
  40
  41./include/bedbug/ppc.h
  42./include/bedbug/regs.h
  43./include/bedbug/bedbug.h
  44./include/bedbug/elf.h          [obsoleted by new include/elf.h]
  45./include/bedbug/tables.h
  46./include/cmd_bedbug.h
  47./common/cmd_bedbug.c
  48./common/bedbug.c
  49        Bedbug library includes code for assembling and disassembling
  50        PowerPC instructions to/from memory as well as handling
  51        hardware breakpoints and stepping through code.  These
  52        routines are common to all PowerPC processors.
  53
  54./arch/powerpc/cpu/ppc4xx/bedbug_405.c
  55        AMCC  PPC405 specific debugger routines.
  56
  57
  58Bedbug support for the MPC860
  59-----------------------------
  60
  61Changes:
  62
  63        common/cmd_bedbug.c
  64                Added call to initialize 860 debugger.
  65
  66        arch/powerpc/cpu/mpc8xx/Makefile
  67                Added new file "bedbug_860.c" to the makefile
  68
  69        arch/powerpc/cpu/mpc8xx/start.S
  70                Added handler for InstructionBreakpoint (0xfd00)
  71
  72        arch/powerpc/cpu/mpc8xx/traps.c
  73                Added new routine DebugException()
  74
  75New Files:
  76
  77        arch/powerpc/cpu/mpc8xx/bedbug_860.c
  78                CPU-specific routines for 860 debug registers.
  79