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: 2012-06-02 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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