Mercurial > hg > truffle
diff src/cpu/sparc/vm/nativeInst_sparc.cpp @ 2375:d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
Reviewed-by: kvn
author | never |
---|---|
date | Fri, 18 Mar 2011 15:52:42 -0700 |
parents | f95d63e2154a |
children | 1d1603768966 |
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--- a/src/cpu/sparc/vm/nativeInst_sparc.cpp Fri Mar 18 09:03:43 2011 -0700 +++ b/src/cpu/sparc/vm/nativeInst_sparc.cpp Fri Mar 18 15:52:42 2011 -0700 @@ -52,6 +52,22 @@ ICache::invalidate_range(instaddr, 7 * BytesPerInstWord); } +void NativeInstruction::verify_data64_sethi(address instaddr, intptr_t x) { + ResourceMark rm; + unsigned char buffer[10 * BytesPerInstWord]; + CodeBuffer buf(buffer, 10 * BytesPerInstWord); + MacroAssembler masm(&buf); + + Register destreg = inv_rd(*(unsigned int *)instaddr); + // Generate the proper sequence into a temporary buffer and compare + // it with the original sequence. + masm.patchable_sethi(x, destreg); + int len = buffer - masm.pc(); + for (int i = 0; i < len; i++) { + assert(instaddr[i] == buffer[i], "instructions must match"); + } +} + void NativeInstruction::verify() { // make sure code pattern is actually an instruction address address addr = addr_at(0);