List Archive: gentoo-dev
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I propose adding the following global USE flag:
jit - Enable just-in-time compilation for improved performance. May
prevent use of some PaX memory protection features in Gentoo Hardened.
Current local flags that could probably be unified:
app-arch/libzpaq:jit - Enable just-in-time compilation for faster
compression (requires SSE2)
dev-libs/libpcre:jit - Enable Just-In-Time compilation of regexp
bytecode to machine code, through the SLJIT compiler. This feature might
conflict wtih security mitigation strategies such as NX/PaX as enabled
by Gentoo Hardened.
dev-python/pypy:jit - Enable the JIT compiler
dev-scheme/racket:jit - Enable just-in-time compiler
media-sound/csound:luajit - Use the lua just-in-time compiler
dev-lang/luajit instead of dev-lang/lua
will cause performance penalty)
www-client/epiphany:jit - Allow using net-libs/webkit-gtk that has the
www-client/luakit:luajit - Use the lua just-in-time compiler
dev-lang/luajit instead of dev-lang/lua, which should make luakit
MethodJIT for faster JS performance. Hardened users can disable this
USE-flag to use MPROTECT on grsecurity kernels.
www-servers/nginx:pcre-jit - Enable JIT for pcre