John Griessen wrote:
Is the current version of gcc recommended to be 3.2.3 for a build of mspgcc?
I've gotten answers that one person uses 3.2.3, and one uses 3.3 so far....
What are the tradeoffs? Pitfalls?
Ok, here is where I think things are,
gcc-3.2.3 (mspgcc/gcc/gcc-3.3)
works,
compiles all our projects ok,
I think there is some fault with calls to pointers in R1
(which I have recently patched)
Maybe some very subtle fault with pointers to structures
selecting the correct offset.
gcc-3.3.6 (msp-gcc/gcc/gcc-3.4)
compiles ok,
makes bigger code, does not seem to use bit instruction for
'and #',
includes mods for C++
(could be back ported to gcc-3.2.3 quite easily)
does not have newer devices (1471,....)
gcc-3.4.4 (msp-gcc/gcc/gcc-current)
compiles with some modifications,
fail with internal compiler error:
in subreg_highpart_offset, at emit-rtl.c:1328
does have C++ mods
does have newer devices (1471,....)
gcc-4.0.2
can be made to compile with major modifications,
wont compile with -O2 needs modifications to msp430.md
also has same fault as gcc-3.4.4 in emit-rtl.c
I am considering making two unofficial debian packages or maybe two KLIK
packages for use directly with msp430's and one for use with TinyOS and nesC
for msp430
which involves a patch to the assembler.
From a TinyOS developer: "We actually do not patch GCC itself but rather the
assembler so that it can accept $-signs in identifiers."
Does the gcc option '-fdollars-in-identifiers' not do what you want?
--
Peter Jansen
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