[Patch] 3/3 FFI: Use __builtin_flush_icache() to flush MIPS i-cache.
David Daney
ddaney@avtrex.com
Sun Jul 1 05:11:00 GMT 2007
This is the third and final part of the __builtin_flush_icache patch.
It replaces the hard coded library call to cacheflush() in the MIPS
ffi_prep_closure_loc with a call to __builtin_flush_icache();
For targets that support user-space i-cache flushing (mips32r2), this
will eliminate a system call from the ffi closure preparation path.
On all other targets the generated code is the same as before.
Bootstrapped and tested on x86_64-unknown-linux-gnu all default
languages with no regressions.
Also tested on:
x86_64 cross to mipsel-linux --with-arch=mips32
i686 cross to mipsel-linux --with-arch=mips32r2
with no regressions.
OK to commit?
libffi/:
2007-06-30 David Daney <ddaney@avtrex.com>
* src/mips/ffi.c: Don't include sys/cachectl.h.
(ffi_prep_closure_loc): Use __builtin_flush_icache() instead of
cacheflush().
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