#ifndef _ARM_THREAD_STATUS_H_
#define _ARM_THREAD_STATUS_H_
#include <mach/machine/_structs.h>
#include <mach/message.h>
#include <mach/vm_types.h>
#include <mach/arm/thread_state.h>
#define ARM_THREAD_STATE 1
#define ARM_UNIFIED_THREAD_STATE ARM_THREAD_STATE
#define ARM_VFP_STATE 2
#define ARM_EXCEPTION_STATE 3
#define ARM_DEBUG_STATE 4
#define THREAD_STATE_NONE 5
#define ARM_THREAD_STATE64 6
#define ARM_EXCEPTION_STATE64 7
#define ARM_THREAD_STATE32 9
#ifdef XNU_KERNEL_PRIVATE
#define X86_THREAD_STATE_NONE 13
#endif
#define ARM_DEBUG_STATE32 14
#define ARM_DEBUG_STATE64 15
#define ARM_NEON_STATE 16
#define ARM_NEON_STATE64 17
#define ARM_CPMU_STATE64 18
#ifdef XNU_KERNEL_PRIVATE
#define ARM_SAVED_STATE32 20
#define ARM_SAVED_STATE64 21
#define ARM_NEON_SAVED_STATE32 22
#define ARM_NEON_SAVED_STATE64 23
#endif
#define ARM_STATE_FLAVOR_IS_OTHER_VALID(_flavor_) 0
#define ARM_PAGEIN_STATE 27
#define VALID_THREAD_STATE_FLAVOR(x) \
((x == ARM_THREAD_STATE) || \
(x == ARM_VFP_STATE) || \
(x == ARM_EXCEPTION_STATE) || \
(x == ARM_DEBUG_STATE) || \
(x == THREAD_STATE_NONE) || \
(x == ARM_THREAD_STATE32) || \
(x == ARM_THREAD_STATE64) || \
(x == ARM_EXCEPTION_STATE64) || \
(x == ARM_NEON_STATE) || \
(x == ARM_NEON_STATE64) || \
(x == ARM_DEBUG_STATE32) || \
(x == ARM_DEBUG_STATE64) || \
(x == ARM_PAGEIN_STATE) || \
(ARM_STATE_FLAVOR_IS_OTHER_VALID(x)))
struct arm_state_hdr {
uint32_t flavor;
uint32_t count;
};
typedef struct arm_state_hdr arm_state_hdr_t;
typedef _STRUCT_ARM_THREAD_STATE arm_thread_state_t;
typedef _STRUCT_ARM_THREAD_STATE arm_thread_state32_t;
typedef _STRUCT_ARM_THREAD_STATE64 arm_thread_state64_t;
#if !defined(KERNEL)
#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL && defined(__arm64__)
#define arm_thread_state64_get_pc(ts) \
__darwin_arm_thread_state64_get_pc(ts)
#define arm_thread_state64_get_pc_fptr(ts) \
__darwin_arm_thread_state64_get_pc_fptr(ts)
#define arm_thread_state64_set_pc_fptr(ts, fptr) \
__darwin_arm_thread_state64_set_pc_fptr(ts, fptr)
#define arm_thread_state64_get_lr(ts) \
__darwin_arm_thread_state64_get_lr(ts)
#define arm_thread_state64_get_lr_fptr(ts) \
__darwin_arm_thread_state64_get_lr_fptr(ts)
#define arm_thread_state64_set_lr_fptr(ts, fptr) \
__darwin_arm_thread_state64_set_lr_fptr(ts, fptr)
#define arm_thread_state64_get_sp(ts) \
__darwin_arm_thread_state64_get_sp(ts)
#define arm_thread_state64_set_sp(ts, ptr) \
__darwin_arm_thread_state64_set_sp(ts, ptr)
#define arm_thread_state64_get_fp(ts) \
__darwin_arm_thread_state64_get_fp(ts)
#define arm_thread_state64_set_fp(ts, ptr) \
__darwin_arm_thread_state64_set_fp(ts, ptr)
#define arm_thread_state64_ptrauth_strip(ts) \
__darwin_arm_thread_state64_ptrauth_strip(ts)
#endif
#endif
struct arm_unified_thread_state {
arm_state_hdr_t ash;
union {
arm_thread_state32_t ts_32;
arm_thread_state64_t ts_64;
} uts;
};
#define ts_32 uts.ts_32
#define ts_64 uts.ts_64
typedef struct arm_unified_thread_state arm_unified_thread_state_t;
#define ARM_THREAD_STATE_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_thread_state_t)/sizeof(uint32_t)))
#define ARM_THREAD_STATE32_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_thread_state32_t)/sizeof(uint32_t)))
#define ARM_THREAD_STATE64_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_thread_state64_t)/sizeof(uint32_t)))
#define ARM_UNIFIED_THREAD_STATE_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_unified_thread_state_t)/sizeof(uint32_t)))
typedef _STRUCT_ARM_VFP_STATE arm_vfp_state_t;
typedef _STRUCT_ARM_NEON_STATE arm_neon_state_t;
typedef _STRUCT_ARM_NEON_STATE arm_neon_state32_t;
typedef _STRUCT_ARM_NEON_STATE64 arm_neon_state64_t;
typedef _STRUCT_ARM_EXCEPTION_STATE arm_exception_state_t;
typedef _STRUCT_ARM_EXCEPTION_STATE arm_exception_state32_t;
typedef _STRUCT_ARM_EXCEPTION_STATE64 arm_exception_state64_t;
typedef _STRUCT_ARM_DEBUG_STATE32 arm_debug_state32_t;
typedef _STRUCT_ARM_DEBUG_STATE64 arm_debug_state64_t;
typedef _STRUCT_ARM_PAGEIN_STATE arm_pagein_state_t;
#if defined(XNU_KERNEL_PRIVATE) && defined(__arm64__)
#else
#if defined(__arm__)
typedef _STRUCT_ARM_DEBUG_STATE arm_debug_state_t;
#elif defined(__arm64__)
typedef _STRUCT_ARM_LEGACY_DEBUG_STATE arm_debug_state_t;
#else
#error Undefined architecture
#endif
#endif
#define ARM_VFP_STATE_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_vfp_state_t)/sizeof(uint32_t)))
#define ARM_EXCEPTION_STATE_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_exception_state_t)/sizeof(uint32_t)))
#define ARM_EXCEPTION_STATE64_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_exception_state64_t)/sizeof(uint32_t)))
#define ARM_DEBUG_STATE_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_debug_state_t)/sizeof(uint32_t)))
#define ARM_DEBUG_STATE32_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_debug_state32_t)/sizeof(uint32_t)))
#define ARM_PAGEIN_STATE_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_pagein_state_t)/sizeof(uint32_t)))
#define ARM_DEBUG_STATE64_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_debug_state64_t)/sizeof(uint32_t)))
#define ARM_NEON_STATE_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_neon_state_t)/sizeof(uint32_t)))
#define ARM_NEON_STATE64_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_neon_state64_t)/sizeof(uint32_t)))
#define MACHINE_THREAD_STATE ARM_THREAD_STATE
#define MACHINE_THREAD_STATE_COUNT ARM_UNIFIED_THREAD_STATE_COUNT
#define THREAD_MACHINE_STATE_MAX THREAD_STATE_MAX
#ifdef XNU_KERNEL_PRIVATE
static inline boolean_t
is_thread_state32(const arm_unified_thread_state_t *its)
{
return its->ash.flavor == ARM_THREAD_STATE32;
}
static inline boolean_t
is_thread_state64(const arm_unified_thread_state_t *its)
{
return its->ash.flavor == ARM_THREAD_STATE64;
}
static inline arm_thread_state32_t*
thread_state32(arm_unified_thread_state_t *its)
{
return &its->ts_32;
}
static inline arm_thread_state64_t*
thread_state64(arm_unified_thread_state_t *its)
{
return &its->ts_64;
}
static inline const arm_thread_state32_t*
const_thread_state32(const arm_unified_thread_state_t *its)
{
return &its->ts_32;
}
static inline const arm_thread_state64_t*
const_thread_state64(const arm_unified_thread_state_t *its)
{
return &its->ts_64;
}
#if defined(__arm__)
#include <arm/proc_reg.h>
#define ARM_SAVED_STATE (THREAD_STATE_NONE + 1)
#if __ARM_VFP__
#define VFPSAVE_ALIGN 16
#define VFPSAVE_ATTRIB __attribute__((aligned (VFPSAVE_ALIGN)))
#define THREAD_ALIGN VFPSAVE_ALIGN
struct arm_vfpsaved_state {
uint32_t r[64];
uint32_t fpscr;
uint32_t fpexc;
};
#endif
struct arm_saved_state {
uint32_t r[13];
uint32_t sp;
uint32_t lr;
uint32_t pc;
uint32_t cpsr;
uint32_t fsr;
uint32_t far;
uint32_t exception;
#if __ARM_VFP__
struct arm_vfpsaved_state VFPdata VFPSAVE_ATTRIB;
arm_debug_state_t *VFPpadding_DebugData;
vm_address_t VFPpadding_cthread_self;
#endif
};
typedef struct arm_saved_state arm_saved_state_t;
typedef struct arm_saved_state arm_saved_state32_t;
static inline void
copy_signed_thread_state(arm_saved_state_t *dst, const arm_saved_state_t *src)
{
*dst = *src;
}
static inline arm_saved_state32_t*
saved_state32(arm_saved_state_t *iss)
{
return iss;
}
static inline boolean_t
is_saved_state32(const arm_saved_state_t *iss __unused)
{
return TRUE;
}
struct arm_saved_state_tagged {
uint32_t tag;
struct arm_saved_state state;
};
typedef struct arm_saved_state_tagged arm_saved_state_tagged_t;
#define ARM_SAVED_STATE32_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_saved_state_t)/sizeof(unsigned int)))
static inline register_t
get_saved_state_pc(const arm_saved_state_t *iss)
{
return iss->pc;
}
static inline void
add_saved_state_pc(arm_saved_state_t *iss, int diff)
{
iss->pc += (unsigned int)diff;
}
static inline void
set_saved_state_pc(arm_saved_state_t *iss, register_t pc)
{
iss->pc = (typeof(iss->pc))pc;
}
static inline register_t
get_saved_state_sp(const arm_saved_state_t *iss)
{
return iss->sp;
}
static inline void
set_saved_state_sp(arm_saved_state_t *iss, register_t sp)
{
iss->sp = sp;
}
static inline register_t
get_saved_state_fp(const arm_saved_state_t *iss)
{
return iss->r[7];
}
static inline void
set_saved_state_fp(arm_saved_state_t *iss, register_t fp)
{
iss->r[7] = fp;
}
static inline register_t
get_saved_state_lr(const arm_saved_state_t *iss)
{
return (register_t)iss->lr;
}
static inline void
set_saved_state_lr(arm_saved_state_t *iss, register_t lr)
{
iss->lr = lr;
}
static inline register_t
get_saved_state_cpsr(const arm_saved_state_t *iss)
{
return iss->cpsr;
}
static inline void
mask_saved_state_cpsr(arm_saved_state_t *iss, uint32_t set_bits, uint32_t clear_bits)
{
iss->cpsr |= set_bits;
iss->cpsr &= ~clear_bits;
}
static inline void
set_saved_state_cpsr(arm_saved_state_t *iss, register_t cpsr)
{
iss->cpsr = cpsr;
}
static inline register_t
get_saved_state_reg(const arm_saved_state_t *iss, unsigned regno)
{
return iss->r[regno];
}
static inline void
set_saved_state_reg(arm_saved_state_t *iss, unsigned regno, register_t val)
{
iss->r[regno] = val;
}
#elif defined(__arm64__)
#include <kern/assert.h>
#include <arm64/proc_reg.h>
#define CAST_ASSERT_SAFE(type, val) (assert((val) == ((type)(val))), (type)(val))
struct arm_saved_state32 {
uint32_t r[13];
uint32_t sp;
uint32_t lr;
uint32_t pc;
uint32_t cpsr;
uint32_t far;
uint32_t esr;
uint32_t exception;
};
typedef struct arm_saved_state32 arm_saved_state32_t;
struct arm_saved_state32_tagged {
uint32_t tag;
struct arm_saved_state32 state;
};
typedef struct arm_saved_state32_tagged arm_saved_state32_tagged_t;
#define ARM_SAVED_STATE32_COUNT ((mach_msg_type_number_t) \
(sizeof(arm_saved_state32_t)/sizeof(unsigned int)))
struct arm_saved_state64 {
uint64_t x[29];
uint64_t fp;
uint64_t lr;
uint64_t sp;
uint64_t pc;
uint32_t cpsr;
uint32_t reserved;
uint64_t far;
uint32_t esr;
uint32_t exception;
#if defined(HAS_APPLE_PAC)
uint64_t jophash;
#endif
};
typedef struct arm_saved_state64 arm_saved_state64_t;
#define ARM_SAVED_STATE64_COUNT ((mach_msg_type_number_t) \
(sizeof(arm_saved_state64_t)/sizeof(unsigned int)))
struct arm_saved_state64_tagged {
uint32_t tag;
struct arm_saved_state64 state;
};
typedef struct arm_saved_state64_tagged arm_saved_state64_tagged_t;
struct arm_saved_state {
arm_state_hdr_t ash;
union {
struct arm_saved_state32 ss_32;
struct arm_saved_state64 ss_64;
} uss;
} __attribute__((aligned(16)));
#define ss_32 uss.ss_32
#define ss_64 uss.ss_64
typedef struct arm_saved_state arm_saved_state_t;
struct arm_kernel_saved_state {
uint64_t x[12];
uint64_t fp;
uint64_t lr;
uint64_t sp;
uint64_t pc;
uint32_t cpsr;
uint32_t reserved;
#if defined(HAS_APPLE_PAC)
uint64_t jophash;
#endif
} __attribute__((aligned(16)));
typedef struct arm_kernel_saved_state arm_kernel_saved_state_t;
#if defined(XNU_KERNEL_PRIVATE)
#if defined(HAS_APPLE_PAC)
#include <sys/cdefs.h>
__BEGIN_DECLS
extern boolean_t ml_set_interrupts_enabled(boolean_t);
__END_DECLS
extern void ml_sign_thread_state(arm_saved_state_t *, uint64_t, uint32_t, uint64_t, uint64_t, uint64_t);
extern void ml_check_signed_state(const arm_saved_state_t *, uint64_t, uint32_t, uint64_t, uint64_t, uint64_t);
#define ss64_offsetof(x) __builtin_offsetof(struct arm_saved_state, ss_64.x)
#define MANIPULATE_SIGNED_THREAD_STATE(_iss, _instr, ...) \
do { \
boolean_t _intr = ml_set_interrupts_enabled(FALSE); \
asm volatile ( \
"mov x8, lr" "\n" \
"mov x0, %[iss]" "\n" \
"ldp x4, x5, [x0, %[SS64_X16]]" "\n" \
"ldr x6, [x0, %[SS64_PC]]" "\n" \
"ldr w7, [x0, %[SS64_CPSR]]" "\n" \
"ldr x3, [x0, %[SS64_LR]]" "\n" \
"mov x1, x6" "\n" \
"mov w2, w7" "\n" \
"bl _ml_check_signed_state" "\n" \
"mov x1, x6" "\n" \
"mov w2, w7" "\n" \
_instr "\n" \
"bl _ml_sign_thread_state" "\n" \
"mov lr, x8" "\n" \
: \
: [iss] "r"(_iss), \
[SS64_X16] "i"(ss64_offsetof(x[16])), \
[SS64_PC] "i"(ss64_offsetof(pc)), \
[SS64_CPSR] "i"(ss64_offsetof(cpsr)), \
[SS64_LR] "i"(ss64_offsetof(lr)),##__VA_ARGS__ \
: "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7", "x8" \
); \
ml_set_interrupts_enabled(_intr); \
} while (0)
static inline void
check_and_sign_copied_thread_state(arm_saved_state_t *dst, const arm_saved_state_t *src)
{
MANIPULATE_SIGNED_THREAD_STATE(src,
"mov x0, %[dst]",
[dst] "r"(dst)
);
}
#endif
static inline void
copy_signed_thread_state(arm_saved_state_t *dst, const arm_saved_state_t *src)
{
*dst = *src;
#if defined(HAS_APPLE_PAC)
check_and_sign_copied_thread_state(dst, src);
#endif
}
#endif
static inline boolean_t
is_saved_state32(const arm_saved_state_t *iss)
{
return iss->ash.flavor == ARM_SAVED_STATE32;
}
static inline boolean_t
is_saved_state64(const arm_saved_state_t *iss)
{
return iss->ash.flavor == ARM_SAVED_STATE64;
}
static inline arm_saved_state32_t*
saved_state32(arm_saved_state_t *iss)
{
return &iss->ss_32;
}
static inline const arm_saved_state32_t*
const_saved_state32(const arm_saved_state_t *iss)
{
return &iss->ss_32;
}
static inline arm_saved_state64_t*
saved_state64(arm_saved_state_t *iss)
{
return &iss->ss_64;
}
static inline const arm_saved_state64_t*
const_saved_state64(const arm_saved_state_t *iss)
{
return &iss->ss_64;
}
static inline register_t
get_saved_state_pc(const arm_saved_state_t *iss)
{
return (register_t)(is_saved_state32(iss) ? const_saved_state32(iss)->pc : const_saved_state64(iss)->pc);
}
static inline void
add_saved_state_pc(arm_saved_state_t *iss, int diff)
{
if (is_saved_state32(iss)) {
uint64_t pc = saved_state32(iss)->pc + (uint32_t)diff;
saved_state32(iss)->pc = CAST_ASSERT_SAFE(uint32_t, pc);
} else {
#if defined(XNU_KERNEL_PRIVATE) && defined(HAS_APPLE_PAC)
MANIPULATE_SIGNED_THREAD_STATE(iss,
"mov w6, %w[diff] \n"
"add x1, x1, w6, sxtw \n"
"str x1, [x0, %[SS64_PC]] \n",
[diff] "r"(diff)
);
#else
saved_state64(iss)->pc += (unsigned long)diff;
#endif
}
}
static inline void
set_saved_state_pc(arm_saved_state_t *iss, register_t pc)
{
if (is_saved_state32(iss)) {
saved_state32(iss)->pc = CAST_ASSERT_SAFE(uint32_t, pc);
} else {
#if defined(XNU_KERNEL_PRIVATE) && defined(HAS_APPLE_PAC)
MANIPULATE_SIGNED_THREAD_STATE(iss,
"mov x1, %[pc] \n"
"str x1, [x0, %[SS64_PC]] \n",
[pc] "r"(pc)
);
#else
saved_state64(iss)->pc = (unsigned long)pc;
#endif
}
}
static inline register_t
get_saved_state_sp(const arm_saved_state_t *iss)
{
return (register_t)(is_saved_state32(iss) ? const_saved_state32(iss)->sp : const_saved_state64(iss)->sp);
}
static inline void
set_saved_state_sp(arm_saved_state_t *iss, register_t sp)
{
if (is_saved_state32(iss)) {
saved_state32(iss)->sp = CAST_ASSERT_SAFE(uint32_t, sp);
} else {
saved_state64(iss)->sp = (uint64_t)sp;
}
}
static inline register_t
get_saved_state_lr(const arm_saved_state_t *iss)
{
return (register_t)(is_saved_state32(iss) ? const_saved_state32(iss)->lr : const_saved_state64(iss)->lr);
}
static inline void
set_saved_state_lr(arm_saved_state_t *iss, register_t lr)
{
if (is_saved_state32(iss)) {
saved_state32(iss)->lr = CAST_ASSERT_SAFE(uint32_t, lr);
} else {
#if defined(XNU_KERNEL_PRIVATE) && defined(HAS_APPLE_PAC)
MANIPULATE_SIGNED_THREAD_STATE(iss,
"mov x3, %[lr] \n"
"str x3, [x0, %[SS64_LR]] \n",
[lr] "r"(lr)
);
#else
saved_state64(iss)->lr = (unsigned long)lr;
#endif
}
}
static inline register_t
get_saved_state_fp(const arm_saved_state_t *iss)
{
return (register_t)(is_saved_state32(iss) ? const_saved_state32(iss)->r[7] : const_saved_state64(iss)->fp);
}
static inline void
set_saved_state_fp(arm_saved_state_t *iss, register_t fp)
{
if (is_saved_state32(iss)) {
saved_state32(iss)->r[7] = CAST_ASSERT_SAFE(uint32_t, fp);
} else {
saved_state64(iss)->fp = (uint64_t)fp;
}
}
static inline int
check_saved_state_reglimit(const arm_saved_state_t *iss, unsigned reg)
{
return is_saved_state32(iss) ? (reg < ARM_SAVED_STATE32_COUNT) : (reg < ARM_SAVED_STATE64_COUNT);
}
static inline register_t
get_saved_state_reg(const arm_saved_state_t *iss, unsigned reg)
{
if (!check_saved_state_reglimit(iss, reg)) {
return 0;
}
return (register_t)(is_saved_state32(iss) ? (const_saved_state32(iss)->r[reg]) : (const_saved_state64(iss)->x[reg]));
}
static inline void
set_saved_state_reg(arm_saved_state_t *iss, unsigned reg, register_t value)
{
if (!check_saved_state_reglimit(iss, reg)) {
return;
}
if (is_saved_state32(iss)) {
saved_state32(iss)->r[reg] = CAST_ASSERT_SAFE(uint32_t, value);
} else {
#if defined(XNU_KERNEL_PRIVATE) && defined(HAS_APPLE_PAC)
if (reg == 16) {
MANIPULATE_SIGNED_THREAD_STATE(iss,
"mov x4, %[value] \n"
"str x4, [x0, %[SS64_X16]] \n",
[value] "r"(value)
);
return;
} else if (reg == 17) {
MANIPULATE_SIGNED_THREAD_STATE(iss,
"mov x5, %[value] \n"
"str x5, [x0, %[SS64_X17]] \n",
[value] "r"(value),
[SS64_X17] "i"(ss64_offsetof(x[17]))
);
return;
}
#endif
saved_state64(iss)->x[reg] = (uint64_t)value;
}
}
static inline uint32_t
get_saved_state_cpsr(const arm_saved_state_t *iss)
{
return is_saved_state32(iss) ? const_saved_state32(iss)->cpsr : const_saved_state64(iss)->cpsr;
}
static inline void
mask_saved_state_cpsr(arm_saved_state_t *iss, uint32_t set_bits, uint32_t clear_bits)
{
if (is_saved_state32(iss)) {
saved_state32(iss)->cpsr |= set_bits;
saved_state32(iss)->cpsr &= ~clear_bits;
} else {
#if defined(XNU_KERNEL_PRIVATE) && defined(HAS_APPLE_PAC)
MANIPULATE_SIGNED_THREAD_STATE(iss,
"mov w6, %w[set_bits] \n"
"orr w2, w2, w6, lsl #0 \n"
"mov w6, %w[clear_bits] \n"
"bic w2, w2, w6, lsl #0 \n"
"str w2, [x0, %[SS64_CPSR]] \n",
[set_bits] "r"(set_bits),
[clear_bits] "r"(clear_bits)
);
#else
saved_state64(iss)->cpsr |= set_bits;
saved_state64(iss)->cpsr &= ~clear_bits;
#endif
}
}
static inline void
set_saved_state_cpsr(arm_saved_state_t *iss, uint32_t cpsr)
{
if (is_saved_state32(iss)) {
saved_state32(iss)->cpsr = cpsr;
} else {
#if defined(XNU_KERNEL_PRIVATE) && defined(HAS_APPLE_PAC)
MANIPULATE_SIGNED_THREAD_STATE(iss,
"mov w2, %w[cpsr] \n"
"str w2, [x0, %[SS64_CPSR]] \n",
[cpsr] "r"(cpsr)
);
#else
saved_state64(iss)->cpsr = cpsr;
#endif
}
}
static inline register_t
get_saved_state_far(const arm_saved_state_t *iss)
{
return (register_t)(is_saved_state32(iss) ? const_saved_state32(iss)->far : const_saved_state64(iss)->far);
}
static inline void
set_saved_state_far(arm_saved_state_t *iss, register_t far)
{
if (is_saved_state32(iss)) {
saved_state32(iss)->far = CAST_ASSERT_SAFE(uint32_t, far);
} else {
saved_state64(iss)->far = (uint64_t)far;
}
}
static inline uint32_t
get_saved_state_esr(const arm_saved_state_t *iss)
{
return is_saved_state32(iss) ? const_saved_state32(iss)->esr : const_saved_state64(iss)->esr;
}
static inline void
set_saved_state_esr(arm_saved_state_t *iss, uint32_t esr)
{
if (is_saved_state32(iss)) {
saved_state32(iss)->esr = esr;
} else {
saved_state64(iss)->esr = esr;
}
}
static inline uint32_t
get_saved_state_exc(const arm_saved_state_t *iss)
{
return is_saved_state32(iss) ? const_saved_state32(iss)->exception : const_saved_state64(iss)->exception;
}
static inline void
set_saved_state_exc(arm_saved_state_t *iss, uint32_t exc)
{
if (is_saved_state32(iss)) {
saved_state32(iss)->exception = exc;
} else {
saved_state64(iss)->exception = exc;
}
}
extern void panic_unimplemented(void);
static inline int
get_saved_state_svc_number(const arm_saved_state_t *iss)
{
return is_saved_state32(iss) ? (int)const_saved_state32(iss)->r[12] : (int)const_saved_state64(iss)->x[ARM64_SYSCALL_CODE_REG_NUM];
}
typedef _STRUCT_ARM_LEGACY_DEBUG_STATE arm_legacy_debug_state_t;
struct arm_debug_aggregate_state {
arm_state_hdr_t dsh;
union {
arm_debug_state32_t ds32;
arm_debug_state64_t ds64;
} uds;
} __attribute__((aligned(16)));
typedef struct arm_debug_aggregate_state arm_debug_state_t;
#define ARM_LEGACY_DEBUG_STATE_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_legacy_debug_state_t)/sizeof(uint32_t)))
typedef __uint128_t uint128_t;
typedef uint64_t uint64x2_t __attribute__((ext_vector_type(2)));
typedef uint32_t uint32x4_t __attribute__((ext_vector_type(4)));
struct arm_neon_saved_state32 {
union {
uint128_t q[16];
uint64_t d[32];
uint32_t s[32];
} v;
uint32_t fpsr;
uint32_t fpcr;
};
typedef struct arm_neon_saved_state32 arm_neon_saved_state32_t;
#define ARM_NEON_SAVED_STATE32_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_neon_saved_state32_t)/sizeof(unsigned int)))
struct arm_neon_saved_state64 {
union {
uint128_t q[32];
uint64x2_t d[32];
uint32x4_t s[32];
} v;
uint32_t fpsr;
uint32_t fpcr;
};
typedef struct arm_neon_saved_state64 arm_neon_saved_state64_t;
#define ARM_NEON_SAVED_STATE64_COUNT ((mach_msg_type_number_t) \
(sizeof (arm_neon_saved_state64_t)/sizeof(unsigned int)))
struct arm_neon_saved_state {
arm_state_hdr_t nsh;
union {
struct arm_neon_saved_state32 ns_32;
struct arm_neon_saved_state64 ns_64;
} uns;
};
typedef struct arm_neon_saved_state arm_neon_saved_state_t;
#define ns_32 uns.ns_32
#define ns_64 uns.ns_64
struct arm_kernel_neon_saved_state {
uint64_t d[8];
uint32_t fpcr;
};
typedef struct arm_kernel_neon_saved_state arm_kernel_neon_saved_state_t;
static inline boolean_t
is_neon_saved_state32(const arm_neon_saved_state_t *state)
{
return state->nsh.flavor == ARM_NEON_SAVED_STATE32;
}
static inline boolean_t
is_neon_saved_state64(const arm_neon_saved_state_t *state)
{
return state->nsh.flavor == ARM_NEON_SAVED_STATE64;
}
static inline arm_neon_saved_state32_t *
neon_state32(arm_neon_saved_state_t *state)
{
return &state->ns_32;
}
static inline arm_neon_saved_state64_t *
neon_state64(arm_neon_saved_state_t *state)
{
return &state->ns_64;
}
struct arm_context {
struct arm_saved_state ss;
struct arm_neon_saved_state ns;
};
typedef struct arm_context arm_context_t;
struct arm_kernel_context {
struct arm_kernel_saved_state ss;
struct arm_kernel_neon_saved_state ns;
};
typedef struct arm_kernel_context arm_kernel_context_t;
extern void saved_state_to_thread_state64(const arm_saved_state_t*, arm_thread_state64_t*);
extern void thread_state64_to_saved_state(const arm_thread_state64_t*, arm_saved_state_t*);
#else
#error Unknown arch
#endif
extern void saved_state_to_thread_state32(const arm_saved_state_t*, arm_thread_state32_t*);
extern void thread_state32_to_saved_state(const arm_thread_state32_t*, arm_saved_state_t*);
#endif
#endif