Re: [avr-chat] Making GDB automatically set its target?

[Ned Konz]

On Feb 11, 2006, at 5:20 PM, Rick Mann wrote:

> I'd like to configure avr-gdb to connect to avarice on launch,  
> without me explicitly having to type "target remote localhost:4242"  
> each time. Is this possible?

Yes. Look at the Makefile template that's widely used with avr-libc.
I've modified it for my own needs, but it's informative anyway.
It creates a command script file for GDB and starts GDB with that  
script.

Here's a snippet from one I'm using right now that ought to give you  
some ideas...

# GDB Init Filename.
GDBINIT_FILE = __avr_gdbinit

JTAG_DEV = /dev/cu.usbserial0

DEBUG_UI = gdb
DEBUG_BACKEND = avarice

DEBUG_PORT = 4242
DEBUG_HOST = localhost

# Program the device.
program: $(TARGET).hex $(TARGET).eep
        $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $ 
(AVRDUDE_WRITE_EEPROM)

# Generate avr-gdb config/init file which does the following:
#     define the reset signal, load the target file, connect to  
target, and set
#     a breakpoint at main().
gdb-config:
        @$(REMOVE) $(GDBINIT_FILE)
        @echo define reset >> $(GDBINIT_FILE)
        @echo SIGNAL SIGHUP >> $(GDBINIT_FILE)
        @echo end >> $(GDBINIT_FILE)
        @echo file $(TARGET).elf >> $(GDBINIT_FILE)
        @echo target remote $(DEBUG_HOST):$(DEBUG_PORT)  >> $ 
(GDBINIT_FILE)
ifeq ($(DEBUG_BACKEND),simulavr)
        @echo load  >> $(GDBINIT_FILE)
endif
        @echo break main >> $(GDBINIT_FILE)

# check to see if avarice is still running (probably Mac OS X specific)
avarice:
        @ps -x | cut -c27- | grep -q '^avarice ' || \
        avarice -I -D --mkII --jtag $(JTAG_DEV) --erase --program -- 
file $(TARGET).elf $(DEBUG_HOST):       $(DEBUG_PORT)

debug: gdb-config $(TARGET).elf avarice
        avr-gdb --command=$(GDBINIT_FILE)


--
Ned Konz
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