| 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. |
| |
| ./arch/powerpc/cpu/ppc4xx/Makefile |
| Added bedbug_405.c to the Makefile. |
| |
| ./arch/powerpc/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. |
| |
| ./arch/powerpc/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. |
| |
| ./arch/powerpc/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. |
| |
| arch/powerpc/cpu/mpc8xx/Makefile |
| Added new file "bedbug_860.c" to the makefile |
| |
| arch/powerpc/cpu/mpc8xx/start.S |
| Added handler for InstructionBreakpoint (0xfd00) |
| |
| arch/powerpc/cpu/mpc8xx/traps.c |
| Added new routine DebugException() |
| |
| New Files: |
| |
| arch/powerpc/cpu/mpc8xx/bedbug_860.c |
| CPU-specific routines for 860 debug registers. |