js/src/nanojit/Native.h

   1 /* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 4 -*- */
   2 /* vi: set ts=4 sw=4 expandtab: (add to ~/.vimrc: set modeline modelines=5) */
   3 /* ***** BEGIN LICENSE BLOCK *****
   4  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   5  *
   6  * The contents of this file are subject to the Mozilla Public License Version
   7  * 1.1 (the "License"); you may not use this file except in compliance with
   8  * the License. You may obtain a copy of the License at
   9  * http://www.mozilla.org/MPL/
  10  *
  11  * Software distributed under the License is distributed on an "AS IS" basis,
  12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  13  * for the specific language governing rights and limitations under the
  14  * License.
  15  *
  16  * The Original Code is [Open Source Virtual Machine].
  17  *
  18  * The Initial Developer of the Original Code is
  19  * Adobe System Incorporated.
  20  * Portions created by the Initial Developer are Copyright (C) 2004-2007
  21  * the Initial Developer. All Rights Reserved.
  22  *
  23  * Contributor(s):
  24  *   Adobe AS3 Team
  25  *
  26  * Alternatively, the contents of this file may be used under the terms of
  27  * either the GNU General Public License Version 2 or later (the "GPL"), or
  28  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  29  * in which case the provisions of the GPL or the LGPL are applicable instead
  30  * of those above. If you wish to allow use of your version of this file only
  31  * under the terms of either the GPL or the LGPL, and not to allow others to
  32  * use your version of this file under the terms of the MPL, indicate your
  33  * decision by deleting the provisions above and replace them with the notice
  34  * and other provisions required by the GPL or the LGPL. If you do not delete
  35  * the provisions above, a recipient may use your version of this file under
  36  * the terms of any one of the MPL, the GPL or the LGPL.
  37  *
  38  * ***** END LICENSE BLOCK ***** */
  39
  40
  41 #ifndef __nanojit_Native__
  42 #define __nanojit_Native__
  43
  44 // define PEDANTIC=1 to ignore specialized forms, force general forms
  45 // for everything, far branches, extra page-linking, etc.  This will
  46 // flush out many corner cases.
  47
  48 #define PEDANTIC 0
  49 #if PEDANTIC
  50 #  define UNLESS_PEDANTIC(...)
  51 #  define IF_PEDANTIC(...) __VA_ARGS__
  52 #else
  53 #  define UNLESS_PEDANTIC(...) __VA_ARGS__
  54 #  define IF_PEDANTIC(...)
  55 #endif
  56
  57 #ifdef NANOJIT_IA32
  58 #include "Nativei386.h"
  59 #elif defined(NANOJIT_ARM)
  60 #include "NativeARM.h"
  61 #elif defined(NANOJIT_PPC)
  62 #include "NativePPC.h"
  63 #elif defined(NANOJIT_SPARC)
  64 #include "NativeSparc.h"
  65 #elif defined(NANOJIT_X64)
  66 #include "NativeX64.h"
  67 #else
  68 #error "unknown nanojit architecture"
  69 #endif
  70
  71 namespace nanojit {
  72     class Fragment;
  73     struct SideExit;
  74     struct SwitchInfo;
  75
  76     struct GuardRecord
  77     {
  78         void* jmp;
  79         GuardRecord* next;
  80         SideExit* exit;
  81         // profiling stuff
  82         verbose_only( uint32_t profCount; )
  83         verbose_only( uint32_t profGuardID; )
  84         verbose_only( GuardRecord* nextInFrag; )
  85     };
  86
  87     struct SideExit
  88     {
  89         GuardRecord* guards;
  90         Fragment* from;
  91         Fragment* target;
  92         SwitchInfo* switchInfo;
  93
  94         void addGuard(GuardRecord* gr)
  95         {
  96             NanoAssert(gr->next == NULL);
  97             NanoAssert(guards != gr);
  98             gr->next = guards;
  99             guards = gr;
 100         }
 101     };
 102 }
 103
 104     #ifdef NJ_STACK_GROWTH_UP
 105         #define stack_direction(n)   n
 106     #else
 107         #define stack_direction(n)  -n
 108     #endif
 109
 110     #define isSPorFP(r)        ( (r)==SP || (r)==FP )
 111
 112     #ifdef MOZ_NO_VARADIC_MACROS
 113         static void asm_output(const char *f, ...) {}
 114         #define gpn(r)                    regNames[(r)]
 115         #define fpn(r)                    regNames[(r)]
 116     #elif defined(NJ_VERBOSE)
 117         #define asm_output(...) do { \
 118             counter_increment(native); \
 119             if (_logc->lcbits & LC_Assembly) { \
 120                 outline[0]='\0'; \
 121                 if (outputAddr) \
 122                    VMPI_sprintf(outline, "%010lx   ", (unsigned long)_nIns); \
 123                 else \
 124                    VMPI_memset(outline, (int)' ', 10+3); \
 125                 sprintf(&outline[13], ##__VA_ARGS__); \
 126                 Assembler::outputAlign(outline, 35); \
 127                 _allocator.formatRegisters(outline, _thisfrag); \
 128                 Assembler::output_asm(outline); \
 129                 outputAddr=(_logc->lcbits & LC_NoCodeAddrs) ? false : true;    \
 130             } \
 131         } while (0) /* no semi */
 132         #define gpn(r)                    regNames[(r)]
 133         #define fpn(r)                    regNames[(r)]
 134     #else
 135         #define asm_output(...)
 136         #define gpn(r)
 137         #define fpn(r)
 138     #endif /* NJ_VERBOSE */
 139
 140 #endif // __nanojit_Native__