/* Linux-specific definitions: (these are the C library offsets and not the kernel ones) */
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/* Define various structure offsets to simplify cross-compilation. */
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/* Offsets for x86 Linux "ucontext_t": */
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#define LINUX_UC_FLAGS_OFF 0x00
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#define LINUX_UC_LINK_OFF 0x04
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#define LINUX_UC_STACK_OFF 0x08
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#define LINUX_UC_MCONTEXT_OFF 0x14
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#define LINUX_UC_SIGMASK_OFF 0x6c
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// Bionic uses 8 bytes for sigmask (just like the kernel) whereas libunwind
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// expects by default a glibc like sigmask (128 bytes).
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#if defined(__ANDROID__)
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#define LINUX_UC_FPREGS_MEM_OFF 0x74
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#else
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#define LINUX_UC_FPREGS_MEM_OFF 0xec
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#endif
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/* The struct sigcontext is located at an offset of 4
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from the stack pointer in the signal frame. */
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/* Offsets for x86 Linux "struct sigcontext": */
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#define LINUX_SC_GS_OFF 0x00
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#define LINUX_SC_GSH_OFF 0x02
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#define LINUX_SC_FS_OFF 0x04
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#define LINUX_SC_FSH_OFF 0x06
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#define LINUX_SC_ES_OFF 0x08
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#define LINUX_SC_ESH_OFF 0x0a
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#define LINUX_SC_DS_OFF 0x0c
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#define LINUX_SC_DSH_OFF 0x0e
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#define LINUX_SC_EDI_OFF 0x10
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#define LINUX_SC_ESI_OFF 0x14
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#define LINUX_SC_EBP_OFF 0x18
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#define LINUX_SC_ESP_OFF 0x1c
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#define LINUX_SC_EBX_OFF 0x20
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#define LINUX_SC_EDX_OFF 0x24
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#define LINUX_SC_ECX_OFF 0x28
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#define LINUX_SC_EAX_OFF 0x2c
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#define LINUX_SC_TRAPNO_OFF 0x30
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#define LINUX_SC_ERR_OFF 0x34
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#define LINUX_SC_EIP_OFF 0x38
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#define LINUX_SC_CS_OFF 0x3c
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#define LINUX_SC_CSH_OFF 0x3e
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#define LINUX_SC_EFLAGS_OFF 0x40
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#define LINUX_SC_ESP_AT_SIGNAL_OFF 0x44
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#define LINUX_SC_SS_OFF 0x48
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#define LINUX_SC_SSH_OFF 0x4a
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#define LINUX_SC_FPSTATE_OFF 0x4c
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#define LINUX_SC_OLDMASK_OFF 0x50
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#define LINUX_SC_CR2_OFF 0x54
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/* Offsets for x86 Linux "struct _fpstate": */
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#define LINUX_FPSTATE_CW_OFF 0x000
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#define LINUX_FPSTATE_SW_OFF 0x004
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#define LINUX_FPSTATE_TAG_OFF 0x008
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#define LINUX_FPSTATE_IPOFF_OFF 0x00c
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#define LINUX_FPSTATE_CSSEL_OFF 0x010
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#define LINUX_FPSTATE_DATAOFF_OFF 0x014
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#define LINUX_FPSTATE_DATASEL_OFF 0x018
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#define LINUX_FPSTATE_ST0_OFF 0x01c
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#define LINUX_FPSTATE_ST1_OFF 0x026
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#define LINUX_FPSTATE_ST2_OFF 0x030
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#define LINUX_FPSTATE_ST3_OFF 0x03a
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#define LINUX_FPSTATE_ST4_OFF 0x044
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#define LINUX_FPSTATE_ST5_OFF 0x04e
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#define LINUX_FPSTATE_ST6_OFF 0x058
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#define LINUX_FPSTATE_ST7_OFF 0x062
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#define LINUX_FPSTATE_STATUS_OFF 0x06c
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#define LINUX_FPSTATE_MAGIC_OFF 0x06e
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#define LINUX_FPSTATE_FXSR_ENV_OFF 0x070
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#define LINUX_FPSTATE_MXCSR_OFF 0x088
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#define LINUX_FPSTATE_FXSR_ST0_OFF 0x090
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#define LINUX_FPSTATE_FXSR_ST1_OFF 0x0a0
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#define LINUX_FPSTATE_FXSR_ST2_OFF 0x0b0
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#define LINUX_FPSTATE_FXSR_ST3_OFF 0x0c0
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#define LINUX_FPSTATE_FXSR_ST4_OFF 0x0d0
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#define LINUX_FPSTATE_FXSR_ST5_OFF 0x0e0
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#define LINUX_FPSTATE_FXSR_ST6_OFF 0x0f0
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#define LINUX_FPSTATE_FXSR_ST7_OFF 0x100
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#define LINUX_FPSTATE_XMM0_OFF 0x110
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#define LINUX_FPSTATE_XMM1_OFF 0x120
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#define LINUX_FPSTATE_XMM2_OFF 0x130
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#define LINUX_FPSTATE_XMM3_OFF 0x140
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#define LINUX_FPSTATE_XMM4_OFF 0x150
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#define LINUX_FPSTATE_XMM5_OFF 0x160
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#define LINUX_FPSTATE_XMM6_OFF 0x170
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#define LINUX_FPSTATE_XMM7_OFF 0x180
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/* FreeBSD-specific definitions: */
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#define FREEBSD_SC_UCONTEXT_OFF 0x20
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#define FREEBSD_UC_MCONTEXT_OFF 0x10
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#define FREEBSD_UC_MCONTEXT_GS_OFF 0x14
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#define FREEBSD_UC_MCONTEXT_FS_OFF 0x18
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#define FREEBSD_UC_MCONTEXT_ES_OFF 0x1c
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#define FREEBSD_UC_MCONTEXT_DS_OFF 0x20
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#define FREEBSD_UC_MCONTEXT_EDI_OFF 0x24
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#define FREEBSD_UC_MCONTEXT_ESI_OFF 0x28
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#define FREEBSD_UC_MCONTEXT_EBP_OFF 0x2c
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#define FREEBSD_UC_MCONTEXT_EBX_OFF 0x34
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#define FREEBSD_UC_MCONTEXT_EDX_OFF 0x38
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#define FREEBSD_UC_MCONTEXT_ECX_OFF 0x3c
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#define FREEBSD_UC_MCONTEXT_EAX_OFF 0x40
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#define FREEBSD_UC_MCONTEXT_TRAPNO_OFF 0x44
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#define FREEBSD_UC_MCONTEXT_EIP_OFF 0x4c
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#define FREEBSD_UC_MCONTEXT_ESP_OFF 0x58
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#define FREEBSD_UC_MCONTEXT_CS_OFF 0x50
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#define FREEBSD_UC_MCONTEXT_EFLAGS_OFF 0x54
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#define FREEBSD_UC_MCONTEXT_SS_OFF 0x5c
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#define FREEBSD_UC_MCONTEXT_MC_LEN_OFF 0x60
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#define FREEBSD_UC_MCONTEXT_FPFORMAT_OFF 0x64
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#define FREEBSD_UC_MCONTEXT_OWNEDFP_OFF 0x68
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#define FREEBSD_UC_MCONTEXT_FPSTATE_OFF 0x70
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#define FREEBSD_UC_MCONTEXT_CW_OFF 0x70
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#define FREEBSD_UC_MCONTEXT_SW_OFF 0x74
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#define FREEBSD_UC_MCONTEXT_TAG_OFF 0x78
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#define FREEBSD_UC_MCONTEXT_IPOFF_OFF 0x7c
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#define FREEBSD_UC_MCONTEXT_CSSEL_OFF 0x80
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#define FREEBSD_UC_MCONTEXT_DATAOFF_OFF 0x84
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#define FREEBSD_US_MCONTEXT_DATASEL_OFF 0x88
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#define FREEBSD_UC_MCONTEXT_ST0_OFF 0x8c
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#define FREEBSD_UC_MCONTEXT_CW_XMM_OFF 0x70
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#define FREEBSD_UC_MCONTEXT_SW_XMM_OFF 0x72
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#define FREEBSD_UC_MCONTEXT_TAG_XMM_OFF 0x74
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#define FREEBSD_UC_MCONTEXT_IPOFF_XMM_OFF 0x78
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#define FREEBSD_UC_MCONTEXT_CSSEL_XMM_OFF 0x7c
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#define FREEBSD_UC_MCONTEXT_DATAOFF_XMM_OFF 0x80
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#define FREEBSD_US_MCONTEXT_DATASEL_XMM_OFF 0x84
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#define FREEBSD_UC_MCONTEXT_MXCSR_XMM_OFF 0x88
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#define FREEBSD_UC_MCONTEXT_ST0_XMM_OFF 0x90
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#define FREEBSD_UC_MCONTEXT_XMM0_OFF 0x110
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#define FREEBSD_UC_MCONTEXT_MC_LEN_VAL 0x280
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#define FREEBSD_UC_MCONTEXT_FPFMT_NODEV 0x10000
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#define FREEBSD_UC_MCONTEXT_FPFMT_387 0x10001
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#define FREEBSD_UC_MCONTEXT_FPFMT_XMM 0x10002
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#define FREEBSD_UC_MCONTEXT_FPOWNED_NONE 0x20000
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#define FREEBSD_UC_MCONTEXT_FPOWNED_FPU 0x20001
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#define FREEBSD_UC_MCONTEXT_FPOWNED_PCB 0x20002
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