On 20.02.2012 02:00, Ingo Weinhold wrote:
To sum that up: 1. The 8 byte alignment currently used in Haiku is
fine, but the heuristics will break for x86_64. 2. It is probably
worth looking into the __alignof__() behavior of our gccs (i.e. why
gcc 2 returns 4 for long long and why gcc 4 for Haiku and Linux 32
bit differ for double).
It may be worth checking this out in relation with enabling JIT
compilation in JavaScriptCore. To turn it on is a simple define in the
platform header (forgot the name maybe Platform.h ... it's the one
that everything includes). JavaScriptCore employs some really weird
trickery that breaks if alignment doesn't meet certain asumptions. But
in any case, the improved POSIX signal stuff may also suddenly make
the JIT compilation stuff work in JavaScriptCore. Unfortunately, I
have no time to explore this.
Best regards,
-Stephan
