Hi all,
this is the second attempt.
I reworked the issues Richard mentioned in the previous review.
I also found one issue which will break build/bootstrap if I pass
--enable-gnu-indirect-function, also fixed.
One thing which came up is the way we generate code for the
armv6*-*-freebsd* triplet versus the arm-*-freebsd* triplet.
I think the thing which confuses is the fact that we have only two fixed
triplets where we build a complete OS with. Means the whole OS is built
with the same optimization, not only the kernel or one binary.
For the armv6* we want to benefit from the cpu's functionality by
default. We build all __ARM_ARCH >= 6 with TARGET_CPU_arm1176jzs,
on the other hand all __ARM_ARCH <=5 will be built with TARGET_CPU_arm9.
Now who becomes arm-*-freebsd* and who becomes armv6*-*-freebsd*?
As tried above, we only know two triplets, so __ARM_ARCH >= 6 becomes
armv6*-*-freebsd* and __ARM_ARCH <=5 becomes arm-*-freebsd*.
armv8 is not yet in the portfolio and it will become something
different, either arm64 or aarch64, I do not know.
I'd like to keep this since our system compilers, clang and gcc-4.2.1
behave the same.
If we have to change here, we would confuse people quite a lot.
The whole thing is FreeBSD specific and does not touch others.
As usual, bootstrapped, cross compiled, tested.
Ok for trunk?
TIA,
Andreas
toplevel:
* configure.ac: Don't add ${libgcj} for arm*-*-freebsd*.
* configure: Regenerate.
gcc:
* config.gcc (arm*-*-freebsd*): New configuration.
* config/arm/freebsd.h: New file.
* config.host: Add extra components for arm*-*-freebsd*.
* config/arm/arm.h: Introduce MAX_SYNC_LIBFUNC_SIZE.
* config/arm/arm.c (arm_init_libfuncs): Use MAX_SYNC_LIBFUNC_SIZE.
libgcc:
* config.host (arm*-*-freebsd*): Add new configuration for
arm*-*-freebsd*.
* config/arm/freebsd-atomic.c: New file.
* config/arm/t-freebsd: Likewise.
* config/arm/unwind-arm.h: Add __FreeBSD__ to the list of
'PC-relative indirect' OS's.
libatomic:
* configure.tgt: Exclude arm*-*-freebsd* from try_ifunc.
libstdc++-v3:
* configure.host: Add arm*-*-freebsd* port_specific_symbol_files.