// Copyright 2012 Google LLC
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google LLC nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// This header can be included either from a C, C++ or Assembly file.
// Its purpose is to contain constants that must match the offsets of
// various fields in ucontext_t.
//
// They should match the definitions from signal.h.
//
// Used by src/common/linux/breakpad_getcontext.S
// Tested by src/common/linux/breakpad_getcontext_unittest.cc
//
// This header should not be used by anything else.

#ifndef GOOGLEBREAKPAD_COMMON_LINUX_UCONTEXT_CONSTANTS_H
#define GOOGLEBREAKPAD_COMMON_LINUX_UCONTEXT_CONSTANTS_H

#if defined(__arm__)

#define  MCONTEXT_GREGS_OFFSET     32
#define  UCONTEXT_SIGMASK_OFFSET   104

#elif defined(__aarch64__)

#define  UCONTEXT_SIGMASK_OFFSET     40

#define  MCONTEXT_GREGS_OFFSET       184
#define  MCONTEXT_SP_OFFSET          432
#define  MCONTEXT_PC_OFFSET          440
#define  MCONTEXT_PSTATE_OFFSET      448
#define  MCONTEXT_EXTENSION_OFFSET   464

#define  FPSIMD_MAGIC                0x46508001

#define  FPSIMD_CONTEXT_MAGIC_OFFSET 0
#define  FPSIMD_CONTEXT_SIZE_OFFSET  4
#define  FPSIMD_CONTEXT_FPSR_OFFSET  8
#define  FPSIMD_CONTEXT_FPCR_OFFSET  12
#define  FPSIMD_CONTEXT_VREGS_OFFSET 16
#define  FPSIMD_CONTEXT_SIZE         528

#define  REGISTER_SIZE               8
#define  SIMD_REGISTER_SIZE          16

#elif defined(__i386__)

#define  MCONTEXT_GREGS_OFFSET     20
#define  MCONTEXT_GS_OFFSET        (MCONTEXT_GREGS_OFFSET + 0*4)
#define  MCONTEXT_FS_OFFSET        (MCONTEXT_GREGS_OFFSET + 1*4)
#define  MCONTEXT_ES_OFFSET        (MCONTEXT_GREGS_OFFSET + 2*4)
#define  MCONTEXT_DS_OFFSET        (MCONTEXT_GREGS_OFFSET + 3*4)
#define  MCONTEXT_EDI_OFFSET       (MCONTEXT_GREGS_OFFSET + 4*4)
#define  MCONTEXT_ESI_OFFSET       (MCONTEXT_GREGS_OFFSET + 5*4)
#define  MCONTEXT_EBP_OFFSET       (MCONTEXT_GREGS_OFFSET + 6*4)
#define  MCONTEXT_ESP_OFFSET       (MCONTEXT_GREGS_OFFSET + 7*4)
#define  MCONTEXT_EBX_OFFSET       (MCONTEXT_GREGS_OFFSET + 8*4)
#define  MCONTEXT_EDX_OFFSET       (MCONTEXT_GREGS_OFFSET + 9*4)
#define  MCONTEXT_ECX_OFFSET       (MCONTEXT_GREGS_OFFSET + 10*4)
#define  MCONTEXT_EAX_OFFSET       (MCONTEXT_GREGS_OFFSET + 11*4)
#define  MCONTEXT_TRAPNO_OFFSET    (MCONTEXT_GREGS_OFFSET + 12*4)
#define  MCONTEXT_ERR_OFFSET       (MCONTEXT_GREGS_OFFSET + 13*4)
#define  MCONTEXT_EIP_OFFSET       (MCONTEXT_GREGS_OFFSET + 14*4)
#define  MCONTEXT_CS_OFFSET        (MCONTEXT_GREGS_OFFSET + 15*4)
#define  MCONTEXT_EFL_OFFSET       (MCONTEXT_GREGS_OFFSET + 16*4)
#define  MCONTEXT_UESP_OFFSET      (MCONTEXT_GREGS_OFFSET + 17*4)
#define  MCONTEXT_SS_OFFSET        (MCONTEXT_GREGS_OFFSET + 18*4)

#define  UCONTEXT_SIGMASK_OFFSET   108

#define  UCONTEXT_FPREGS_OFFSET       96
#if defined(__BIONIC__)
#define  UCONTEXT_FPREGS_MEM_OFFSET   116
#else
#define  UCONTEXT_FPREGS_MEM_OFFSET   236
#endif

#elif defined(__mips__)

#if _MIPS_SIM == _ABIO32
#define  MCONTEXT_PC_OFFSET        32
#define  MCONTEXT_GREGS_OFFSET     40
#define  MCONTEXT_FPREGS_OFFSET    296
#define  MCONTEXT_FPC_CSR          556
#define  UCONTEXT_SIGMASK_OFFSET   616
#else
#define  MCONTEXT_GREGS_OFFSET     40
#define  MCONTEXT_FPREGS_OFFSET    296
#define  MCONTEXT_PC_OFFSET        616
#define  MCONTEXT_FPC_CSR          624
#define  UCONTEXT_SIGMASK_OFFSET   640
#endif

#elif defined(__x86_64__)

#define MCONTEXT_GREGS_OFFSET     40
#define UCONTEXT_SIGMASK_OFFSET   296

#define MCONTEXT_GREGS_R8    40
#define MCONTEXT_GREGS_R9    48
#define MCONTEXT_GREGS_R10   56
#define MCONTEXT_GREGS_R11   64
#define MCONTEXT_GREGS_R12   72
#define MCONTEXT_GREGS_R13   80
#define MCONTEXT_GREGS_R14   88
#define MCONTEXT_GREGS_R15   96
#define MCONTEXT_GREGS_RDI   104
#define MCONTEXT_GREGS_RSI   112
#define MCONTEXT_GREGS_RBP   120
#define MCONTEXT_GREGS_RBX   128
#define MCONTEXT_GREGS_RDX   136
#define MCONTEXT_GREGS_RAX   144
#define MCONTEXT_GREGS_RCX   152
#define MCONTEXT_GREGS_RSP   160
#define MCONTEXT_GREGS_RIP   168
#define MCONTEXT_FPREGS_PTR  224
#if defined(__BIONIC__)
#define MCONTEXT_FPREGS_MEM  304
#else
#define MCONTEXT_FPREGS_MEM  424
#endif
#define FPREGS_OFFSET_MXCSR  24

#elif defined(__riscv)

#if __riscv_xlen == 32
#define UCONTEXT_SIGMASK_OFFSET  20
#define MCONTEXT_GREGS_OFFSET   148
#define MCONTEXT_GREGS_SIZE       4
#define REG_S sw
#elif __riscv_xlen == 64
#define UCONTEXT_SIGMASK_OFFSET  40
#define MCONTEXT_GREGS_OFFSET   168
#define MCONTEXT_GREGS_SIZE       8
#define REG_S sd
#else
#error "Unexpected __riscv_xlen"
#endif

#define MCONTEXT_GREGS_PC    MCONTEXT_GREGS_OFFSET + 0*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_RA    MCONTEXT_GREGS_OFFSET + 1*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_SP    MCONTEXT_GREGS_OFFSET + 2*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_GP    MCONTEXT_GREGS_OFFSET + 3*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_TP    MCONTEXT_GREGS_OFFSET + 4*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_T0    MCONTEXT_GREGS_OFFSET + 5*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_T1    MCONTEXT_GREGS_OFFSET + 6*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_T2    MCONTEXT_GREGS_OFFSET + 7*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_S0    MCONTEXT_GREGS_OFFSET + 8*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_S1    MCONTEXT_GREGS_OFFSET + 9*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_A0    MCONTEXT_GREGS_OFFSET + 10*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_A1    MCONTEXT_GREGS_OFFSET + 11*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_A2    MCONTEXT_GREGS_OFFSET + 12*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_A3    MCONTEXT_GREGS_OFFSET + 13*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_A4    MCONTEXT_GREGS_OFFSET + 14*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_A5    MCONTEXT_GREGS_OFFSET + 15*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_A6    MCONTEXT_GREGS_OFFSET + 16*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_A7    MCONTEXT_GREGS_OFFSET + 17*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_S2    MCONTEXT_GREGS_OFFSET + 18*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_S3    MCONTEXT_GREGS_OFFSET + 19*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_S4    MCONTEXT_GREGS_OFFSET + 20*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_S5    MCONTEXT_GREGS_OFFSET + 21*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_S6    MCONTEXT_GREGS_OFFSET + 22*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_S7    MCONTEXT_GREGS_OFFSET + 23*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_S8    MCONTEXT_GREGS_OFFSET + 24*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_S9    MCONTEXT_GREGS_OFFSET + 25*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_S10   MCONTEXT_GREGS_OFFSET + 26*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_S11   MCONTEXT_GREGS_OFFSET + 27*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_T3    MCONTEXT_GREGS_OFFSET + 28*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_T4    MCONTEXT_GREGS_OFFSET + 29*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_T5    MCONTEXT_GREGS_OFFSET + 30*MCONTEXT_GREGS_SIZE
#define MCONTEXT_GREGS_T6    MCONTEXT_GREGS_OFFSET + 31*MCONTEXT_GREGS_SIZE

#define MCONTEXT_FPREGS_OFFSET  MCONTEXT_GREGS_OFFSET + 32*MCONTEXT_GREGS_SIZE

#if __riscv_flen == 32
#define MCONTEXT_FPREGS_SIZE       4
#define FREG_S fsw
#elif __riscv_flen == 64
#define MCONTEXT_FPREGS_SIZE       8
#define FREG_S fsd
#elif __riscv_flen == 128
#define MCONTEXT_FPREGS_SIZE      16
#define FREG_S fsq
#else
#error "Unexpected __riscv_flen"
#endif

#define MCONTEXT_FPREGS_FT0   MCONTEXT_FPREGS_OFFSET +  0*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FT1   MCONTEXT_FPREGS_OFFSET +  1*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FT2   MCONTEXT_FPREGS_OFFSET +  2*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FT3   MCONTEXT_FPREGS_OFFSET +  3*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FT4   MCONTEXT_FPREGS_OFFSET +  4*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FT5   MCONTEXT_FPREGS_OFFSET +  5*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FT6   MCONTEXT_FPREGS_OFFSET +  6*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FT7   MCONTEXT_FPREGS_OFFSET +  7*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FS0   MCONTEXT_FPREGS_OFFSET +  8*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FS1   MCONTEXT_FPREGS_OFFSET +  9*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FA0   MCONTEXT_FPREGS_OFFSET + 10*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FA1   MCONTEXT_FPREGS_OFFSET + 11*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FA2   MCONTEXT_FPREGS_OFFSET + 12*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FA3   MCONTEXT_FPREGS_OFFSET + 13*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FA4   MCONTEXT_FPREGS_OFFSET + 14*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FA5   MCONTEXT_FPREGS_OFFSET + 15*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FA6   MCONTEXT_FPREGS_OFFSET + 16*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FA7   MCONTEXT_FPREGS_OFFSET + 17*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FS2   MCONTEXT_FPREGS_OFFSET + 18*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FS3   MCONTEXT_FPREGS_OFFSET + 19*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FS4   MCONTEXT_FPREGS_OFFSET + 20*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FS5   MCONTEXT_FPREGS_OFFSET + 21*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FS6   MCONTEXT_FPREGS_OFFSET + 22*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FS7   MCONTEXT_FPREGS_OFFSET + 23*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FS8   MCONTEXT_FPREGS_OFFSET + 24*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FS9   MCONTEXT_FPREGS_OFFSET + 25*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FS10  MCONTEXT_FPREGS_OFFSET + 26*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FS11  MCONTEXT_FPREGS_OFFSET + 27*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FT8   MCONTEXT_FPREGS_OFFSET + 28*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FT9   MCONTEXT_FPREGS_OFFSET + 29*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FT10  MCONTEXT_FPREGS_OFFSET + 30*MCONTEXT_FPREGS_SIZE
#define MCONTEXT_FPREGS_FT11  MCONTEXT_FPREGS_OFFSET + 31*MCONTEXT_FPREGS_SIZE

#define MCONTEXT_FPC_CSR      MCONTEXT_FPREGS_OFFSET + 32*MCONTEXT_FPREGS_SIZE

#else
# error "This header has not been ported for your CPU"
#endif

#endif  // GOOGLEBREAKPAD_COMMON_ANDROID_UCONTEXT_CONSTANTS_H