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- BEDBUG Support for U-Boot
- --------------------------
- These changes implement the bedbug (emBEDded deBUGger) debugger in U-Boot.
- A specific implementation is made for the AMCC 405 processor but other flavors
- can be easily implemented.
- #####################
- ### Modifications ###
- #####################
- ./common/Makefile
- Included cmd_bedbug.c and bedbug.c in the Makefile.
- ./common/command.c
- Added bedbug commands to command table.
- ./common/board.c
- Added call to initialize debugger on startup.
- ./cpu/ppc4xx/Makefile
- Added bedbug_405.c to the Makefile.
- ./cpu/ppc4xx/start.S
- Added code to handle the debug exception (0x2000) on the 405.
- Also added code to handle critical exceptions since the debug
- is treated as critical on the 405.
- ./cpu/ppc4xx/traps.c
- Added more detailed output for the program exception to tell
- if it is an illegal instruction, privileged instruction or
- a trap. Also added debug trap handler.
- ./include/ppc_asm.tmpl
- Added code to handle critical exceptions
- #################
- ### New Stuff ###
- #################
- ./include/bedbug/ppc.h
- ./include/bedbug/regs.h
- ./include/bedbug/bedbug.h
- ./include/bedbug/elf.h [obsoleted by new include/elf.h]
- ./include/bedbug/tables.h
- ./include/cmd_bedbug.h
- ./common/cmd_bedbug.c
- ./common/bedbug.c
- Bedbug library includes code for assembling and disassembling
- PowerPC instructions to/from memory as well as handling
- hardware breakpoints and stepping through code. These
- routines are common to all PowerPC processors.
- ./cpu/ppc4xx/bedbug_405.c
- AMCC PPC405 specific debugger routines.
- Bedbug support for the MPC860
- -----------------------------
- Changes:
- common/cmd_bedbug.c
- Added call to initialize 860 debugger.
- cpu/mpc8xx/Makefile
- Added new file "bedbug_860.c" to the makefile
- cpu/mpc8xx/start.S
- Added handler for InstructionBreakpoint (0xfd00)
- cpu/mpc8xx/traps.c
- Added new routine DebugException()
- New Files:
- cpu/mpc8xx/bedbug_860.c
- CPU-specific routines for 860 debug registers.
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