1 BEDBUG Support for U-Boot
2 --------------------------
4 These changes implement the bedbug (emBEDded deBUGger) debugger in U-Boot.
5 A specific implementation is made for the AMCC 405 processor but other flavors
6 can be easily implemented.
13 Included cmd_bedbug.c and bedbug.c in the Makefile.
16 Added bedbug commands to command table.
19 Added call to initialize debugger on startup.
22 Added bedbug_405.c to the Makefile.
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.
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.
34 ./include/config_WALNUT405.h
35 Added CFG_CMD_BEDBUG to the CONFIG_COMMANDS for the WALNUT.
37 ./include/ppc_asm.tmpl
38 Added code to handle critical exceptions
44 ./include/bedbug/ppc.h
45 ./include/bedbug/regs.h
46 ./include/bedbug/bedbug.h
47 ./include/bedbug/elf.h [obsoleted by new include/elf.h]
48 ./include/bedbug/tables.h
49 ./include/cmd_bedbug.h
52 Bedbug library includes code for assembling and disassembling
53 PowerPC instructions to/from memory as well as handling
54 hardware breakpoints and stepping through code. These
55 routines are common to all PowerPC processors.
57 ./cpu/ppc4xx/bedbug_405.c
58 AMCC PPC405 specific debugger routines.
61 Bedbug support for the MPC860
62 -----------------------------
67 Added call to initialize 860 debugger.
70 Added new file "bedbug_860.c" to the makefile
73 Added handler for InstructionBreakpoint (0xfd00)
76 Added new routine DebugException()
79 Added CFG_CMD_BEDBUG to CONFIG_COMMANDS define
84 cpu/mpc8xx/bedbug_860.c
85 CPU-specific routines for 860 debug registers.