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      1 
      2 /*--------------------------------------------------------------------*/
      3 /*--- begin                                           genoffsets.c ---*/
      4 /*--------------------------------------------------------------------*/
      5 
      6 /*
      7    This file is part of Valgrind, a dynamic binary instrumentation
      8    framework.
      9 
     10    Copyright (C) 2004-2015 OpenWorks LLP
     11       info (at) open-works.net
     12 
     13    This program is free software; you can redistribute it and/or
     14    modify it under the terms of the GNU General Public License as
     15    published by the Free Software Foundation; either version 2 of the
     16    License, or (at your option) any later version.
     17 
     18    This program is distributed in the hope that it will be useful, but
     19    WITHOUT ANY WARRANTY; without even the implied warranty of
     20    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     21    General Public License for more details.
     22 
     23    You should have received a copy of the GNU General Public License
     24    along with this program; if not, write to the Free Software
     25    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
     26    02110-1301, USA.
     27 
     28    The GNU General Public License is contained in the file COPYING.
     29 
     30    Neither the names of the U.S. Department of Energy nor the
     31    University of California nor the names of its contributors may be
     32    used to endorse or promote products derived from this software
     33    without prior written permission.
     34 */
     35 
     36 #include <stdio.h>
     37 
     38 /* A program which, when compiled to assembly, exposes various guest
     39    state offsets.  The program isn't executed, since that breaks
     40    cross-compilation.
     41 
     42    It does rely on the assumption that 'my_offsetof(Ty,Field)' is
     43    folded to a constant at a compile time, which seems a bit dodgy
     44    to me.  On gcc4 it is possible to use __builtin_offsetof, which
     45    sounds safer, but that doesn't exist on older gccs.  Oh Well.
     46 */
     47 
     48 #include "../pub/libvex_basictypes.h"
     49 #include "../pub/libvex_guest_x86.h"
     50 #include "../pub/libvex_guest_amd64.h"
     51 #include "../pub/libvex_guest_ppc32.h"
     52 #include "../pub/libvex_guest_ppc64.h"
     53 #include "../pub/libvex_guest_arm.h"
     54 #include "../pub/libvex_guest_arm64.h"
     55 #include "../pub/libvex_guest_s390x.h"
     56 #include "../pub/libvex_guest_mips32.h"
     57 #include "../pub/libvex_guest_mips64.h"
     58 #include "../pub/libvex_guest_tilegx.h"
     59 
     60 #define VG_STRINGIFZ(__str)  #__str
     61 #define VG_STRINGIFY(__str)  VG_STRINGIFZ(__str)
     62 
     63 #define my_offsetof(__type,__field) (&((__type*)0)->__field)
     64 
     65 /* This forces gcc to evaluate the my_offsetof call at compile time,
     66    and then emits it in the assembly, along with the nonsense string
     67    "xyzzy", for easy greppability.  Once this file is compiled to
     68    assembly, the lines containing "xyzzy" are grepped out and sed-ed
     69    to produce the final result.  See the Makefile rule for
     70    pub/libvex_guest_offsets.h. */
     71 #define GENOFFSET(_structUppercase,_structLowercase,_fieldname)  \
     72    __asm__ __volatile__ ( \
     73       "\n#define OFFSET_" \
     74       VG_STRINGIFY(_structLowercase) "_" \
     75       VG_STRINGIFY(_fieldname) \
     76       " xyzzy%0\n" : /*out*/ \
     77                    : /*in*/ "n" \
     78          (my_offsetof(VexGuest##_structUppercase##State, \
     79           guest_##_fieldname)) \
     80    )
     81 
     82 void foo ( void );
     83 __attribute__((noinline))
     84 void foo ( void )
     85 {
     86    // x86
     87    GENOFFSET(X86,x86,EAX);
     88    GENOFFSET(X86,x86,EBX);
     89    GENOFFSET(X86,x86,ECX);
     90    GENOFFSET(X86,x86,EDX);
     91    GENOFFSET(X86,x86,ESI);
     92    GENOFFSET(X86,x86,EDI);
     93    GENOFFSET(X86,x86,EBP);
     94    GENOFFSET(X86,x86,ESP);
     95    GENOFFSET(X86,x86,EIP);
     96    GENOFFSET(X86,x86,CS);
     97    GENOFFSET(X86,x86,DS);
     98    GENOFFSET(X86,x86,ES);
     99    GENOFFSET(X86,x86,FS);
    100    GENOFFSET(X86,x86,GS);
    101    GENOFFSET(X86,x86,SS);
    102 
    103    // amd64
    104    GENOFFSET(AMD64,amd64,RAX);
    105    GENOFFSET(AMD64,amd64,RBX);
    106    GENOFFSET(AMD64,amd64,RCX);
    107    GENOFFSET(AMD64,amd64,RDX);
    108    GENOFFSET(AMD64,amd64,RSI);
    109    GENOFFSET(AMD64,amd64,RDI);
    110    GENOFFSET(AMD64,amd64,RSP);
    111    GENOFFSET(AMD64,amd64,RBP);
    112    GENOFFSET(AMD64,amd64,R8);
    113    GENOFFSET(AMD64,amd64,R9);
    114    GENOFFSET(AMD64,amd64,R10);
    115    GENOFFSET(AMD64,amd64,R11);
    116    GENOFFSET(AMD64,amd64,R12);
    117    GENOFFSET(AMD64,amd64,R13);
    118    GENOFFSET(AMD64,amd64,R14);
    119    GENOFFSET(AMD64,amd64,R15);
    120    GENOFFSET(AMD64,amd64,RIP);
    121 
    122    // ppc32
    123    GENOFFSET(PPC32,ppc32,GPR0);
    124    GENOFFSET(PPC32,ppc32,GPR1);
    125    GENOFFSET(PPC32,ppc32,GPR2);
    126    GENOFFSET(PPC32,ppc32,GPR3);
    127    GENOFFSET(PPC32,ppc32,GPR4);
    128    GENOFFSET(PPC32,ppc32,GPR5);
    129    GENOFFSET(PPC32,ppc32,GPR6);
    130    GENOFFSET(PPC32,ppc32,GPR7);
    131    GENOFFSET(PPC32,ppc32,GPR8);
    132    GENOFFSET(PPC32,ppc32,GPR9);
    133    GENOFFSET(PPC32,ppc32,GPR10);
    134    GENOFFSET(PPC32,ppc32,CIA);
    135    GENOFFSET(PPC32,ppc32,CR0_0);
    136 
    137    // ppc64
    138    GENOFFSET(PPC64,ppc64,GPR0);
    139    GENOFFSET(PPC64,ppc64,GPR1);
    140    GENOFFSET(PPC64,ppc64,GPR2);
    141    GENOFFSET(PPC64,ppc64,GPR3);
    142    GENOFFSET(PPC64,ppc64,GPR4);
    143    GENOFFSET(PPC64,ppc64,GPR5);
    144    GENOFFSET(PPC64,ppc64,GPR6);
    145    GENOFFSET(PPC64,ppc64,GPR7);
    146    GENOFFSET(PPC64,ppc64,GPR8);
    147    GENOFFSET(PPC64,ppc64,GPR9);
    148    GENOFFSET(PPC64,ppc64,GPR10);
    149    GENOFFSET(PPC64,ppc64,CIA);
    150    GENOFFSET(PPC64,ppc64,CR0_0);
    151 
    152    // arm
    153    GENOFFSET(ARM,arm,R0);
    154    GENOFFSET(ARM,arm,R1);
    155    GENOFFSET(ARM,arm,R2);
    156    GENOFFSET(ARM,arm,R3);
    157    GENOFFSET(ARM,arm,R4);
    158    GENOFFSET(ARM,arm,R5);
    159    GENOFFSET(ARM,arm,R7);
    160    GENOFFSET(ARM,arm,R13);
    161    GENOFFSET(ARM,arm,R14);
    162    GENOFFSET(ARM,arm,R15T);
    163 
    164    // arm64
    165    GENOFFSET(ARM64,arm64,X0);
    166    GENOFFSET(ARM64,arm64,X1);
    167    GENOFFSET(ARM64,arm64,X2);
    168    GENOFFSET(ARM64,arm64,X3);
    169    GENOFFSET(ARM64,arm64,X4);
    170    GENOFFSET(ARM64,arm64,X5);
    171    GENOFFSET(ARM64,arm64,X6);
    172    GENOFFSET(ARM64,arm64,X7);
    173    GENOFFSET(ARM64,arm64,X8);
    174    GENOFFSET(ARM64,arm64,XSP);
    175    GENOFFSET(ARM64,arm64,PC);
    176 
    177    // s390x
    178    GENOFFSET(S390X,s390x,r2);
    179    GENOFFSET(S390X,s390x,r3);
    180    GENOFFSET(S390X,s390x,r4);
    181    GENOFFSET(S390X,s390x,r5);
    182    GENOFFSET(S390X,s390x,r6);
    183    GENOFFSET(S390X,s390x,r7);
    184    GENOFFSET(S390X,s390x,r15);
    185    GENOFFSET(S390X,s390x,IA);
    186    GENOFFSET(S390X,s390x,SYSNO);
    187    GENOFFSET(S390X,s390x,IP_AT_SYSCALL);
    188    GENOFFSET(S390X,s390x,fpc);
    189    GENOFFSET(S390X,s390x,CC_OP);
    190    GENOFFSET(S390X,s390x,CC_DEP1);
    191    GENOFFSET(S390X,s390x,CC_DEP2);
    192    GENOFFSET(S390X,s390x,CC_NDEP);
    193 
    194    // MIPS32
    195    GENOFFSET(MIPS32,mips32,r0);
    196    GENOFFSET(MIPS32,mips32,r1);
    197    GENOFFSET(MIPS32,mips32,r2);
    198    GENOFFSET(MIPS32,mips32,r3);
    199    GENOFFSET(MIPS32,mips32,r4);
    200    GENOFFSET(MIPS32,mips32,r5);
    201    GENOFFSET(MIPS32,mips32,r6);
    202    GENOFFSET(MIPS32,mips32,r7);
    203    GENOFFSET(MIPS32,mips32,r8);
    204    GENOFFSET(MIPS32,mips32,r9);
    205    GENOFFSET(MIPS32,mips32,r10);
    206    GENOFFSET(MIPS32,mips32,r11);
    207    GENOFFSET(MIPS32,mips32,r12);
    208    GENOFFSET(MIPS32,mips32,r13);
    209    GENOFFSET(MIPS32,mips32,r14);
    210    GENOFFSET(MIPS32,mips32,r15);
    211    GENOFFSET(MIPS32,mips32,r15);
    212    GENOFFSET(MIPS32,mips32,r17);
    213    GENOFFSET(MIPS32,mips32,r18);
    214    GENOFFSET(MIPS32,mips32,r19);
    215    GENOFFSET(MIPS32,mips32,r20);
    216    GENOFFSET(MIPS32,mips32,r21);
    217    GENOFFSET(MIPS32,mips32,r22);
    218    GENOFFSET(MIPS32,mips32,r23);
    219    GENOFFSET(MIPS32,mips32,r24);
    220    GENOFFSET(MIPS32,mips32,r25);
    221    GENOFFSET(MIPS32,mips32,r26);
    222    GENOFFSET(MIPS32,mips32,r27);
    223    GENOFFSET(MIPS32,mips32,r28);
    224    GENOFFSET(MIPS32,mips32,r29);
    225    GENOFFSET(MIPS32,mips32,r30);
    226    GENOFFSET(MIPS32,mips32,r31);
    227    GENOFFSET(MIPS32,mips32,PC);
    228    GENOFFSET(MIPS32,mips32,HI);
    229    GENOFFSET(MIPS32,mips32,LO);
    230 
    231    // MIPS64
    232    GENOFFSET(MIPS64,mips64,r0);
    233    GENOFFSET(MIPS64,mips64,r1);
    234    GENOFFSET(MIPS64,mips64,r2);
    235    GENOFFSET(MIPS64,mips64,r3);
    236    GENOFFSET(MIPS64,mips64,r4);
    237    GENOFFSET(MIPS64,mips64,r5);
    238    GENOFFSET(MIPS64,mips64,r6);
    239    GENOFFSET(MIPS64,mips64,r7);
    240    GENOFFSET(MIPS64,mips64,r8);
    241    GENOFFSET(MIPS64,mips64,r9);
    242    GENOFFSET(MIPS64,mips64,r10);
    243    GENOFFSET(MIPS64,mips64,r11);
    244    GENOFFSET(MIPS64,mips64,r12);
    245    GENOFFSET(MIPS64,mips64,r13);
    246    GENOFFSET(MIPS64,mips64,r14);
    247    GENOFFSET(MIPS64,mips64,r15);
    248    GENOFFSET(MIPS64,mips64,r15);
    249    GENOFFSET(MIPS64,mips64,r17);
    250    GENOFFSET(MIPS64,mips64,r18);
    251    GENOFFSET(MIPS64,mips64,r19);
    252    GENOFFSET(MIPS64,mips64,r20);
    253    GENOFFSET(MIPS64,mips64,r21);
    254    GENOFFSET(MIPS64,mips64,r22);
    255    GENOFFSET(MIPS64,mips64,r23);
    256    GENOFFSET(MIPS64,mips64,r24);
    257    GENOFFSET(MIPS64,mips64,r25);
    258    GENOFFSET(MIPS64,mips64,r26);
    259    GENOFFSET(MIPS64,mips64,r27);
    260    GENOFFSET(MIPS64,mips64,r28);
    261    GENOFFSET(MIPS64,mips64,r29);
    262    GENOFFSET(MIPS64,mips64,r30);
    263    GENOFFSET(MIPS64,mips64,r31);
    264    GENOFFSET(MIPS64,mips64,PC);
    265    GENOFFSET(MIPS64,mips64,HI);
    266    GENOFFSET(MIPS64,mips64,LO);
    267 
    268    // Tilegx
    269    GENOFFSET(TILEGX,tilegx,r0);
    270    GENOFFSET(TILEGX,tilegx,r1);
    271    GENOFFSET(TILEGX,tilegx,r2);
    272    GENOFFSET(TILEGX,tilegx,r3);
    273    GENOFFSET(TILEGX,tilegx,r4);
    274    GENOFFSET(TILEGX,tilegx,r5);
    275    GENOFFSET(TILEGX,tilegx,r6);
    276    GENOFFSET(TILEGX,tilegx,r7);
    277    GENOFFSET(TILEGX,tilegx,r8);
    278    GENOFFSET(TILEGX,tilegx,r9);
    279    GENOFFSET(TILEGX,tilegx,r10);
    280    GENOFFSET(TILEGX,tilegx,r11);
    281    GENOFFSET(TILEGX,tilegx,r12);
    282    GENOFFSET(TILEGX,tilegx,r13);
    283    GENOFFSET(TILEGX,tilegx,r14);
    284    GENOFFSET(TILEGX,tilegx,r15);
    285    GENOFFSET(TILEGX,tilegx,r16);
    286    GENOFFSET(TILEGX,tilegx,r17);
    287    GENOFFSET(TILEGX,tilegx,r18);
    288    GENOFFSET(TILEGX,tilegx,r19);
    289    GENOFFSET(TILEGX,tilegx,r20);
    290    GENOFFSET(TILEGX,tilegx,r21);
    291    GENOFFSET(TILEGX,tilegx,r22);
    292    GENOFFSET(TILEGX,tilegx,r23);
    293    GENOFFSET(TILEGX,tilegx,r24);
    294    GENOFFSET(TILEGX,tilegx,r25);
    295    GENOFFSET(TILEGX,tilegx,r26);
    296    GENOFFSET(TILEGX,tilegx,r27);
    297    GENOFFSET(TILEGX,tilegx,r28);
    298    GENOFFSET(TILEGX,tilegx,r29);
    299    GENOFFSET(TILEGX,tilegx,r30);
    300    GENOFFSET(TILEGX,tilegx,r31);
    301    GENOFFSET(TILEGX,tilegx,r32);
    302    GENOFFSET(TILEGX,tilegx,r33);
    303    GENOFFSET(TILEGX,tilegx,r34);
    304    GENOFFSET(TILEGX,tilegx,r35);
    305    GENOFFSET(TILEGX,tilegx,r36);
    306    GENOFFSET(TILEGX,tilegx,r37);
    307    GENOFFSET(TILEGX,tilegx,r38);
    308    GENOFFSET(TILEGX,tilegx,r39);
    309    GENOFFSET(TILEGX,tilegx,r40);
    310    GENOFFSET(TILEGX,tilegx,r41);
    311    GENOFFSET(TILEGX,tilegx,r42);
    312    GENOFFSET(TILEGX,tilegx,r43);
    313    GENOFFSET(TILEGX,tilegx,r44);
    314    GENOFFSET(TILEGX,tilegx,r45);
    315    GENOFFSET(TILEGX,tilegx,r46);
    316    GENOFFSET(TILEGX,tilegx,r47);
    317    GENOFFSET(TILEGX,tilegx,r48);
    318    GENOFFSET(TILEGX,tilegx,r49);
    319    GENOFFSET(TILEGX,tilegx,r50);
    320    GENOFFSET(TILEGX,tilegx,r51);
    321    GENOFFSET(TILEGX,tilegx,r52);
    322    GENOFFSET(TILEGX,tilegx,r53);
    323    GENOFFSET(TILEGX,tilegx,r54);
    324    GENOFFSET(TILEGX,tilegx,r55);
    325    GENOFFSET(TILEGX,tilegx,pc);
    326    GENOFFSET(TILEGX,tilegx,EMNOTE);
    327    GENOFFSET(TILEGX,tilegx,CMSTART);
    328    GENOFFSET(TILEGX,tilegx,NRADDR);
    329 }
    330 
    331 /*--------------------------------------------------------------------*/
    332 /*--- end                                             genoffsets.c ---*/
    333 /*--------------------------------------------------------------------*/
    334