DrSocalkwe3n/luajit
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Move helper for syncing data/instruction cache to lj_mcode.c.

Browse Source 
Sync caches after dynamic code generation for FFI callbacks.
This commit is contained in:
Mike Pall
2011-12-12 22:49:19 +01:00
parent 2d8f3d75df
commit 10474987bd
8 changed files with 69 additions and 56 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
src/lj_asm.c
View File

@@ -147,14 +147,6 @@ IRFLDEF(FLOFS)
0
};
/* Define this if you want to run LuaJIT with Valgrind. */
#ifdef LUAJIT_USE_VALGRIND
#include <valgrind/valgrind.h>
#define VG_INVALIDATE(p, sz) VALGRIND_DISCARD_TRANSLATIONS(p, sz)
#else
#define VG_INVALIDATE(p, sz) ((void)0)
#endif
/* -- Target-specific instruction emitter --------------------------------- */
#if LJ_TARGET_X86ORX64
@@ -931,41 +923,6 @@ static uint32_t ir_khash(IRIns *ir)
return hashrot(lo, hi);
}
#if !LJ_TARGET_X86ORX64 && LJ_TARGET_OSX
void sys_icache_invalidate(void *start, size_t len);
#endif
#if LJ_TARGET_LINUX && LJ_TARGET_PPC
#include <dlfcn.h>
static void (*asm_ppc_cache_flush)(MCode *start, MCode *end);
static void asm_dummy_cache_flush(MCode *start, MCode *end)
{
UNUSED(start); UNUSED(end);
}
#endif
/* Flush instruction cache. */
static void asm_cache_flush(MCode *start, MCode *end)
{
VG_INVALIDATE(start, (char *)end-(char *)start);
#if LJ_TARGET_X86ORX64
UNUSED(start); UNUSED(end);
#elif LJ_TARGET_OSX
sys_icache_invalidate(start, end-start);
#elif LJ_TARGET_LINUX && LJ_TARGET_PPC
if (!asm_ppc_cache_flush) {
void *vdso = dlopen("linux-vdso32.so.1", RTLD_LAZY);
if (!vdso || !(asm_ppc_cache_flush = dlsym(vdso, "__kernel_sync_dicache")))
asm_ppc_cache_flush = asm_dummy_cache_flush;
}
asm_ppc_cache_flush(start, end);
#elif defined(__GNUC__) && !LJ_TARGET_PPC
__clear_cache(start, end);
#else
#error "Missing builtin to flush instruction cache"
#endif
}
/* -- Allocations --------------------------------------------------------- */
static void asm_gencall(ASMState *as, const CCallInfo *ci, IRRef *args);
@@ -1776,7 +1733,7 @@ void lj_asm_trace(jit_State *J, GCtrace *T)
if (!as->loopref)
asm_tail_fixup(as, T->link); /* Note: this may change as->mctop! */
T->szmcode = (MSize)((char *)as->mctop - (char *)as->mcp);
asm_cache_flush(T->mcode, origtop);
lj_mcode_sync(T->mcode, origtop);
}
#undef IR