Hi All,
Here is a list of places I can find to define the mcu types in the tool
chain,
gcc-3.2.3:
gcc/config/msp430/msp430.c
Defines enum msp430_arch defining MSP430_ISA_xx
This is only used by msp430_is_xarch
The mcu name from the command line is matched to the msp430_mcy_types
This is used to tell if has_hwmul is set
gcc/config/msp430/t-msp430
Selects the correct multilib (msp1 or msp2) for the mcu type from the
command line
This builds /lib/gcc-lib/msp430/3.2.3/msp1 and msp2 libs
gcc/config/msp430/msp430.h
Defines CPP_SPEC spec file matches for -mmcu to set on the command line
-D__MSP430_xxx and -DMSP430_HAS_HWMUL
Defines LINK_SPEC spec file matches for -mmcu to set on the linker
command line -m msp430xXXXX
Defines CRT_BINUTILS_SPEC spec file matches for -mmcu to set on the
linker command line to include crt430xX.o from msp430-libc
Also defines -DMSP430_HAS_HW_MUL on the compiler command line, which is
not used as HAS_HWMUL is used
msp430-libc:
src/Makefile
Defines crt_all_objs to create the crt430xX.o files for each type used
to link against. The only reason
> not to use gcrt0.o is the X arch vectors
include/msp430xX.h
includes for each MCU, called from io.h using the -D__MSP430_xxx from
the compiler command line
binutils-2.18:
ld/Makefile.in
ld/Makefile.am
Defines emulations linker scripts to generate.
ld/configure.tgt
Defines emulation targets to generate linker scripts.
ld/emulparams/msp430all.sh
From the emulation mode, set from the commandline option -m to set the
ROM_START/END and RAM_START/END and STACK start
used for generating the linker scripts.
gas/config/tc-msp430.c
Used to define MSP430_ISA_xx and bfd_mach_mspxx (used by
bfd/cpu-msp430.c bfd/doc/bfd.info bfd/doc/archures.texi bfd/archures.c
bfd/bfd-in2.h bfd/elf32-msp430.c)
I can see some improvements in gcc/config/msp430/msp430.h by using the
form %{mmcu=msp430x*:-D__MSP430_%* } to get the defines etc.
Any suggestions to clean some of this up welcome.
Regards,
--
Peter Jansen
STS
Antarctic Division
203 Channel Highway
Kingston
TAS 7050
AUSTRALIA
Phone +61 3 6232 3533
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