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comparison src/cpu/x86/vm/nativeInst_x86.cpp @ 21559:be896a1983c0

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recast all Graal native code as JVMCI code (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Thu, 28 May 2015 15:36:48 +0200
parents 52b4284cb496
children
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21558:d563baeca9df 21559:be896a1983c0
472 // entry point is in same cache line as unverified entry point, and the instruction being 472 // entry point is in same cache line as unverified entry point, and the instruction being
473 // patched is >= 5 byte (size of patch). 473 // patched is >= 5 byte (size of patch).
474 // 474 //
475 // In C2 the 5+ byte sized instruction is enforced by code in MachPrologNode::emit. 475 // In C2 the 5+ byte sized instruction is enforced by code in MachPrologNode::emit.
476 // In C1 the restriction is enforced by CodeEmitter::method_entry 476 // In C1 the restriction is enforced by CodeEmitter::method_entry
477 // In Graal, the restriction is enforced by HotSpotFrameContext.enter(...) 477 // In JVMCI, the restriction is enforced by HotSpotFrameContext.enter(...)
478 // 478 //
479 void NativeJump::patch_verified_entry(address entry, address verified_entry, address dest) { 479 void NativeJump::patch_verified_entry(address entry, address verified_entry, address dest) {
480 // complete jump instruction (to be inserted) is in code_buffer; 480 // complete jump instruction (to be inserted) is in code_buffer;
481 unsigned char code_buffer[5]; 481 unsigned char code_buffer[5];
482 code_buffer[0] = instruction_code; 482 code_buffer[0] = instruction_code;