src/libs/libunwind/mips/offsets.h

   1 /* Linux-specific definitions: */
   2
   3 /* Define various structure offsets to simplify cross-compilation.  */
   4
   5 /* FIXME: Currently these are only used in getcontext.S, which is only used
   6    for a local unwinder, so we can use the compile-time ABI.  At a later date
   7    we will want all three here, to use for signal handlers.  Also, because
   8    of the three ABIs, gen-offsets.c can not quite generate this file.  */
   9
  10 /* Offsets for MIPS Linux "ucontext_t":  */
  11
  12 /* First 24 bytes in sigframe are argument save space and padding for
  13 what used to be signal trampolines. Ref: arch/mips/kernel/signal.c */
  14 #define LINUX_SF_TRAMP_SIZE 0x18
  15
  16 #if _MIPS_SIM == _ABIO32
  17
  18 # define LINUX_UC_FLAGS_OFF     0x0
  19 # define LINUX_UC_LINK_OFF      0x4
  20 # define LINUX_UC_STACK_OFF     0x8
  21 # define LINUX_UC_MCONTEXT_OFF  0x18
  22 # define LINUX_UC_SIGMASK_OFF   0x268
  23 # define LINUX_UC_MCONTEXT_PC   0x20
  24 # define LINUX_UC_MCONTEXT_GREGS        0x28
  25
  26 #elif _MIPS_SIM == _ABIN32
  27
  28 # define LINUX_UC_FLAGS_OFF     0x0
  29 # define LINUX_UC_LINK_OFF      0x4
  30 # define LINUX_UC_STACK_OFF     0x8
  31 # define LINUX_UC_MCONTEXT_OFF  0x18
  32 # define LINUX_UC_SIGMASK_OFF   0x270
  33 # define LINUX_UC_MCONTEXT_PC   0x258
  34 # define LINUX_UC_MCONTEXT_GREGS        0x18
  35
  36 #elif _MIPS_SIM == _ABI64
  37
  38 # define LINUX_UC_FLAGS_OFF     0x0
  39 # define LINUX_UC_LINK_OFF      0x8
  40 # define LINUX_UC_STACK_OFF     0x10
  41 # define LINUX_UC_MCONTEXT_OFF  0x28
  42 # define LINUX_UC_SIGMASK_OFF   0x280
  43 # define LINUX_UC_MCONTEXT_PC   0x268
  44 # define LINUX_UC_MCONTEXT_GREGS        0x28
  45
  46 #else
  47
  48 #error Unsupported ABI
  49
  50 #endif
  51
  52 #define LINUX_SC_R0_OFF   (LINUX_UC_MCONTEXT_GREGS - LINUX_UC_MCONTEXT_OFF)
  53 #define LINUX_SC_R1_OFF   (LINUX_SC_R0_OFF + 1*8)
  54 #define LINUX_SC_R2_OFF   (LINUX_SC_R0_OFF + 2*8)
  55 #define LINUX_SC_R3_OFF   (LINUX_SC_R0_OFF + 3*8)
  56 #define LINUX_SC_R4_OFF   (LINUX_SC_R0_OFF + 4*8)
  57 #define LINUX_SC_R5_OFF   (LINUX_SC_R0_OFF + 5*8)
  58 #define LINUX_SC_R6_OFF   (LINUX_SC_R0_OFF + 6*8)
  59 #define LINUX_SC_R7_OFF   (LINUX_SC_R0_OFF + 7*8)
  60 #define LINUX_SC_R8_OFF   (LINUX_SC_R0_OFF + 8*8)
  61 #define LINUX_SC_R9_OFF   (LINUX_SC_R0_OFF + 9*8)
  62 #define LINUX_SC_R10_OFF  (LINUX_SC_R0_OFF + 10*8)
  63 #define LINUX_SC_R11_OFF  (LINUX_SC_R0_OFF + 11*8)
  64 #define LINUX_SC_R12_OFF  (LINUX_SC_R0_OFF + 12*8)
  65 #define LINUX_SC_R13_OFF  (LINUX_SC_R0_OFF + 13*8)
  66 #define LINUX_SC_R14_OFF  (LINUX_SC_R0_OFF + 14*8)
  67 #define LINUX_SC_R15_OFF  (LINUX_SC_R0_OFF + 15*8)
  68 #define LINUX_SC_R16_OFF  (LINUX_SC_R0_OFF + 16*8)
  69 #define LINUX_SC_R17_OFF  (LINUX_SC_R0_OFF + 17*8)
  70 #define LINUX_SC_R18_OFF  (LINUX_SC_R0_OFF + 18*8)
  71 #define LINUX_SC_R19_OFF  (LINUX_SC_R0_OFF + 19*8)
  72 #define LINUX_SC_R20_OFF  (LINUX_SC_R0_OFF + 20*8)
  73 #define LINUX_SC_R21_OFF  (LINUX_SC_R0_OFF + 21*8)
  74 #define LINUX_SC_R22_OFF  (LINUX_SC_R0_OFF + 22*8)
  75 #define LINUX_SC_R23_OFF  (LINUX_SC_R0_OFF + 23*8)
  76 #define LINUX_SC_R24_OFF  (LINUX_SC_R0_OFF + 24*8)
  77 #define LINUX_SC_R25_OFF  (LINUX_SC_R0_OFF + 25*8)
  78 #define LINUX_SC_R26_OFF  (LINUX_SC_R0_OFF + 26*8)
  79 #define LINUX_SC_R27_OFF  (LINUX_SC_R0_OFF + 27*8)
  80 #define LINUX_SC_R28_OFF  (LINUX_SC_R0_OFF + 28*8)
  81 #define LINUX_SC_R29_OFF  (LINUX_SC_R0_OFF + 29*8)
  82 #define LINUX_SC_R30_OFF  (LINUX_SC_R0_OFF + 30*8)
  83 #define LINUX_SC_R31_OFF  (LINUX_SC_R0_OFF + 31*8)
  84
  85 #define LINUX_SC_SP_OFF   LINUX_SC_R29_OFF
  86 #define LINUX_SC_PC_OFF   (LINUX_UC_MCONTEXT_PC - LINUX_UC_MCONTEXT_OFF)