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./cpu/ppc4xx/Makefile 22 Added bedbug_405.c to the Makefile. 23 24./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./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./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 cpu/mpc8xx/Makefile 67 Added new file "bedbug_860.c" to the makefile 68 69 cpu/mpc8xx/start.S 70 Added handler for InstructionBreakpoint (0xfd00) 71 72 cpu/mpc8xx/traps.c 73 Added new routine DebugException() 74 75New Files: 76 77 cpu/mpc8xx/bedbug_860.c 78 CPU-specific routines for 860 debug registers. 79