LCOV - app.info - js/src/methodjit/ICChecker.h

LCOV - code coverage report
| Current view: | directory - js/src/methodjit - ICChecker.h (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 1 | 1 | 100.0 %
| Date: | 2012-07-07 | Functions: | 1 | 1 | 100.0 %

           1                 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
           2                 :  * vim: set ts=4 sw=4 et tw=99:
           3                 :  *
           4                 :  * ***** BEGIN LICENSE BLOCK *****
           5                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
           6                 :  *
           7                 :  * The contents of this file are subject to the Mozilla Public License Version
           8                 :  * 1.1 (the "License"); you may not use this file except in compliance with
           9                 :  * the License. You may obtain a copy of the License at
          10                 :  * http://www.mozilla.org/MPL/
          11                 :  *
          12                 :  * Software distributed under the License is distributed on an "AS IS" basis,
          13                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
          14                 :  * for the specific language governing rights and limitations under the
          15                 :  * License.
          16                 :  *
          17                 :  * The Original Code is Mozilla SpiderMonkey JavaScript 1.9 code, released
          18                 :  * May 28, 2008.
          19                 :  *
          20                 :  * The Initial Developer of the Original Code is
          21                 :  *   Brendan Eich <brendan@mozilla.org>
          22                 :  *
          23                 :  * Contributor(s):
          24                 :  *   David Mandelin <dmandelin@mozilla.com>
          25                 :  *   David Anderson <danderson@mozilla.com>
          26                 :  *   Chris Leary <cdleary@mozilla.com>
          27                 :  *   Jacob Bramley <Jacob.Bramely@arm.com>
          28                 :  *
          29                 :  * Alternatively, the contents of this file may be used under the terms of
          30                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
          31                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
          32                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
          33                 :  * of those above. If you wish to allow use of your version of this file only
          34                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
          35                 :  * use your version of this file under the terms of the MPL, indicate your
          36                 :  * decision by deleting the provisions above and replace them with the notice
          37                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
          38                 :  * the provisions above, a recipient may use your version of this file under
          39                 :  * the terms of any one of the MPL, the GPL or the LGPL.
          40                 :  *
          41                 :  * ***** END LICENSE BLOCK ***** */
          42                 :
          43                 : #if !defined jsjaeger_icchecker_h__ && defined JS_METHODJIT
          44                 : #define jsjaeger_icchecker_h__
          45                 :
          46                 : #include "assembler/assembler/MacroAssembler.h"
          47                 :
          48                 : namespace js {
          49                 : namespace mjit {
          50                 :
          51                 : #if defined DEBUG && defined JS_CPU_ARM
          52                 : static inline void
          53                 : CheckInstMask(void *addr, uint32_t mask, uint32_t expected)
          54                 : {
          55                 :     uint32_t inst = *static_cast<uint32_t *>(addr);
          56                 :     JS_ASSERT((inst & mask) == expected);
          57                 : }
          58                 :
          59                 : static inline void
          60                 : CheckIsLDR(JSC::CodeLocationLabel label, uint8_t rd)
          61                 : {
          62                 :     JS_ASSERT((rd & 0xf) == rd);
          63                 :     CheckInstMask(label.executableAddress(), 0xfc50f000, 0xe4100000 | (rd << 12));
          64                 : }
          65                 :
          66                 : static inline void
          67                 : CheckIsBLX(JSC::CodeLocationLabel label, uint8_t rsrc)
          68                 : {
          69                 :     JS_ASSERT((rsrc & 0xf) == rsrc);
          70                 :     CheckInstMask(label.executableAddress(), 0xfff000ff, 0xe1200030 | rsrc);
          71                 : }
          72                 :
          73                 : static inline void
          74                 : CheckIsStubCall(JSC::CodeLocationLabel label)
          75                 : {
          76                 :     CheckIsLDR(label.labelAtOffset(-4), JSC::ARMRegisters::ip);
          77                 :     CheckIsLDR(label.labelAtOffset(0), JSC::ARMRegisters::r8);
          78                 :     CheckIsBLX(label.labelAtOffset(4), JSC::ARMRegisters::r8);
          79                 : }
          80                 : #else
          81            5692 : static inline void CheckIsStubCall(JSC::CodeLocationLabel label) {}
          82                 : #endif
          83                 :
          84                 : } /* namespace mjit */
          85                 : } /* namespace js */
          86                 :
          87                 : #endif

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