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llvm-project/libcxxabi/include/libunwind.h

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//===---------------------------- libunwind.h -----------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//
// Compatible with libuwind API documented at:
// http://www.nongnu.org/libunwind/man/libunwind(3).html
//
//===----------------------------------------------------------------------===//
#ifndef __LIBUNWIND__
#define __LIBUNWIND__
#include <stdint.h>
#include <stddef.h>
#if __APPLE__
#include <Availability.h>
#if __arm__
#define LIBUNWIND_AVAIL __attribute__((unavailable))
#else
#define LIBUNWIND_AVAIL __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_5_0)
#endif
#else
#define LIBUNWIND_AVAIL
#endif
/* error codes */
enum {
UNW_ESUCCESS = 0, /* no error */
UNW_EUNSPEC = -6540, /* unspecified (general) error */
UNW_ENOMEM = -6541, /* out of memory */
UNW_EBADREG = -6542, /* bad register number */
UNW_EREADONLYREG = -6543, /* attempt to write read-only register */
UNW_ESTOPUNWIND = -6544, /* stop unwinding */
UNW_EINVALIDIP = -6545, /* invalid IP */
UNW_EBADFRAME = -6546, /* bad frame */
UNW_EINVAL = -6547, /* unsupported operation or bad value */
UNW_EBADVERSION = -6548, /* unwind info has unsupported version */
UNW_ENOINFO = -6549 /* no unwind info found */
};
struct unw_context_t {
uint64_t data[128];
};
typedef struct unw_context_t unw_context_t;
struct unw_cursor_t {
uint64_t data[140];
};
typedef struct unw_cursor_t unw_cursor_t;
typedef struct unw_addr_space *unw_addr_space_t;
typedef int unw_regnum_t;
typedef uint64_t unw_word_t;
typedef double unw_fpreg_t;
struct unw_proc_info_t {
unw_word_t start_ip; /* start address of function */
unw_word_t end_ip; /* address after end of function */
unw_word_t lsda; /* address of language specific data area, */
/* or zero if not used */
unw_word_t handler; /* personality routine, or zero if not used */
unw_word_t gp; /* not used */
unw_word_t flags; /* not used */
uint32_t format; /* compact unwind encoding, or zero if none */
uint32_t unwind_info_size; /* size of dwarf unwind info, or zero if none */
unw_word_t unwind_info; /* address of dwarf unwind info, or zero */
unw_word_t extra; /* mach_header of mach-o image containing func */
};
typedef struct unw_proc_info_t unw_proc_info_t;
#ifdef __cplusplus
extern "C" {
#endif
extern int unw_getcontext(unw_context_t *) LIBUNWIND_AVAIL;
extern int unw_init_local(unw_cursor_t *, unw_context_t *) LIBUNWIND_AVAIL;
extern int unw_step(unw_cursor_t *) LIBUNWIND_AVAIL;
extern int unw_get_reg(unw_cursor_t *, unw_regnum_t, unw_word_t *) LIBUNWIND_AVAIL;
extern int unw_get_fpreg(unw_cursor_t *, unw_regnum_t, unw_fpreg_t *) LIBUNWIND_AVAIL;
extern int unw_set_reg(unw_cursor_t *, unw_regnum_t, unw_word_t) LIBUNWIND_AVAIL;
extern int unw_set_fpreg(unw_cursor_t *, unw_regnum_t, unw_fpreg_t) LIBUNWIND_AVAIL;
extern int unw_resume(unw_cursor_t *) LIBUNWIND_AVAIL;
extern const char *unw_regname(unw_cursor_t *, unw_regnum_t) LIBUNWIND_AVAIL;
extern int unw_get_proc_info(unw_cursor_t *, unw_proc_info_t *) LIBUNWIND_AVAIL;
extern int unw_is_fpreg(unw_cursor_t *, unw_regnum_t) LIBUNWIND_AVAIL;
extern int unw_is_signal_frame(unw_cursor_t *) LIBUNWIND_AVAIL;
extern int unw_get_proc_name(unw_cursor_t *, char *, size_t, unw_word_t *) LIBUNWIND_AVAIL;
//extern int unw_get_save_loc(unw_cursor_t*, int, unw_save_loc_t*);
#if UNW_REMOTE
/*
* Mac OS X "remote" API for unwinding other processes on same machine
*
*/
extern unw_addr_space_t unw_local_addr_space;
extern unw_addr_space_t unw_create_addr_space_for_task(task_t);
extern void unw_destroy_addr_space(unw_addr_space_t);
extern int unw_init_remote_thread(unw_cursor_t *, unw_addr_space_t, thread_t *);
#endif
/*
* traditional libuwind "remote" API
* NOT IMPLEMENTED on Mac OS X
*
* extern int unw_init_remote(unw_cursor_t*, unw_addr_space_t,
* thread_t*);
* extern unw_accessors_t unw_get_accessors(unw_addr_space_t);
* extern unw_addr_space_t unw_create_addr_space(unw_accessors_t, int);
* extern void unw_flush_cache(unw_addr_space_t, unw_word_t,
* unw_word_t);
* extern int unw_set_caching_policy(unw_addr_space_t,
* unw_caching_policy_t);
* extern void _U_dyn_register(unw_dyn_info_t*);
* extern void _U_dyn_cancel(unw_dyn_info_t*);
*/
#ifdef __cplusplus
}
#endif
// architecture independent register numbers
enum {
UNW_REG_IP = -1, // instruction pointer
UNW_REG_SP = -2, // stack pointer
};
// 32-bit x86 registers
enum {
UNW_X86_EAX = 0,
UNW_X86_ECX = 1,
UNW_X86_EDX = 2,
UNW_X86_EBX = 3,
UNW_X86_EBP = 4,
UNW_X86_ESP = 5,
UNW_X86_ESI = 6,
UNW_X86_EDI = 7
};
// 64-bit x86_64 registers
enum {
UNW_X86_64_RAX = 0,
UNW_X86_64_RDX = 1,
UNW_X86_64_RCX = 2,
UNW_X86_64_RBX = 3,
UNW_X86_64_RSI = 4,
UNW_X86_64_RDI = 5,
UNW_X86_64_RBP = 6,
UNW_X86_64_RSP = 7,
UNW_X86_64_R8 = 8,
UNW_X86_64_R9 = 9,
UNW_X86_64_R10 = 10,
UNW_X86_64_R11 = 11,
UNW_X86_64_R12 = 12,
UNW_X86_64_R13 = 13,
UNW_X86_64_R14 = 14,
UNW_X86_64_R15 = 15
};
// 32-bit ppc register numbers
enum {
UNW_PPC_R0 = 0,
UNW_PPC_R1 = 1,
UNW_PPC_R2 = 2,
UNW_PPC_R3 = 3,
UNW_PPC_R4 = 4,
UNW_PPC_R5 = 5,
UNW_PPC_R6 = 6,
UNW_PPC_R7 = 7,
UNW_PPC_R8 = 8,
UNW_PPC_R9 = 9,
UNW_PPC_R10 = 10,
UNW_PPC_R11 = 11,
UNW_PPC_R12 = 12,
UNW_PPC_R13 = 13,
UNW_PPC_R14 = 14,
UNW_PPC_R15 = 15,
UNW_PPC_R16 = 16,
UNW_PPC_R17 = 17,
UNW_PPC_R18 = 18,
UNW_PPC_R19 = 19,
UNW_PPC_R20 = 20,
UNW_PPC_R21 = 21,
UNW_PPC_R22 = 22,
UNW_PPC_R23 = 23,
UNW_PPC_R24 = 24,
UNW_PPC_R25 = 25,
UNW_PPC_R26 = 26,
UNW_PPC_R27 = 27,
UNW_PPC_R28 = 28,
UNW_PPC_R29 = 29,
UNW_PPC_R30 = 30,
UNW_PPC_R31 = 31,
UNW_PPC_F0 = 32,
UNW_PPC_F1 = 33,
UNW_PPC_F2 = 34,
UNW_PPC_F3 = 35,
UNW_PPC_F4 = 36,
UNW_PPC_F5 = 37,
UNW_PPC_F6 = 38,
UNW_PPC_F7 = 39,
UNW_PPC_F8 = 40,
UNW_PPC_F9 = 41,
UNW_PPC_F10 = 42,
UNW_PPC_F11 = 43,
UNW_PPC_F12 = 44,
UNW_PPC_F13 = 45,
UNW_PPC_F14 = 46,
UNW_PPC_F15 = 47,
UNW_PPC_F16 = 48,
UNW_PPC_F17 = 49,
UNW_PPC_F18 = 50,
UNW_PPC_F19 = 51,
UNW_PPC_F20 = 52,
UNW_PPC_F21 = 53,
UNW_PPC_F22 = 54,
UNW_PPC_F23 = 55,
UNW_PPC_F24 = 56,
UNW_PPC_F25 = 57,
UNW_PPC_F26 = 58,
UNW_PPC_F27 = 59,
UNW_PPC_F28 = 60,
UNW_PPC_F29 = 61,
UNW_PPC_F30 = 62,
UNW_PPC_F31 = 63,
UNW_PPC_MQ = 64,
UNW_PPC_LR = 65,
UNW_PPC_CTR = 66,
UNW_PPC_AP = 67,
UNW_PPC_CR0 = 68,
UNW_PPC_CR1 = 69,
UNW_PPC_CR2 = 70,
UNW_PPC_CR3 = 71,
UNW_PPC_CR4 = 72,
UNW_PPC_CR5 = 73,
UNW_PPC_CR6 = 74,
UNW_PPC_CR7 = 75,
UNW_PPC_XER = 76,
UNW_PPC_V0 = 77,
UNW_PPC_V1 = 78,
UNW_PPC_V2 = 79,
UNW_PPC_V3 = 80,
UNW_PPC_V4 = 81,
UNW_PPC_V5 = 82,
UNW_PPC_V6 = 83,
UNW_PPC_V7 = 84,
UNW_PPC_V8 = 85,
UNW_PPC_V9 = 86,
UNW_PPC_V10 = 87,
UNW_PPC_V11 = 88,
UNW_PPC_V12 = 89,
UNW_PPC_V13 = 90,
UNW_PPC_V14 = 91,
UNW_PPC_V15 = 92,
UNW_PPC_V16 = 93,
UNW_PPC_V17 = 94,
UNW_PPC_V18 = 95,
UNW_PPC_V19 = 96,
UNW_PPC_V20 = 97,
UNW_PPC_V21 = 98,
UNW_PPC_V22 = 99,
UNW_PPC_V23 = 100,
UNW_PPC_V24 = 101,
UNW_PPC_V25 = 102,
UNW_PPC_V26 = 103,
UNW_PPC_V27 = 104,
UNW_PPC_V28 = 105,
UNW_PPC_V29 = 106,
UNW_PPC_V30 = 107,
UNW_PPC_V31 = 108,
UNW_PPC_VRSAVE = 109,
UNW_PPC_VSCR = 110,
UNW_PPC_SPE_ACC = 111,
UNW_PPC_SPEFSCR = 112
};
// 64-bit ARM64 registers
enum {
UNW_ARM64_X0 = 0,
UNW_ARM64_X1 = 1,
UNW_ARM64_X2 = 2,
UNW_ARM64_X3 = 3,
UNW_ARM64_X4 = 4,
UNW_ARM64_X5 = 5,
UNW_ARM64_X6 = 6,
UNW_ARM64_X7 = 7,
UNW_ARM64_X8 = 8,
UNW_ARM64_X9 = 9,
UNW_ARM64_X10 = 10,
UNW_ARM64_X11 = 11,
UNW_ARM64_X12 = 12,
UNW_ARM64_X13 = 13,
UNW_ARM64_X14 = 14,
UNW_ARM64_X15 = 15,
UNW_ARM64_X16 = 16,
UNW_ARM64_X17 = 17,
UNW_ARM64_X18 = 18,
UNW_ARM64_X19 = 19,
UNW_ARM64_X20 = 20,
UNW_ARM64_X21 = 21,
UNW_ARM64_X22 = 22,
UNW_ARM64_X23 = 23,
UNW_ARM64_X24 = 24,
UNW_ARM64_X25 = 25,
UNW_ARM64_X26 = 26,
UNW_ARM64_X27 = 27,
UNW_ARM64_X28 = 28,
UNW_ARM64_X29 = 29,
UNW_ARM64_FP = 29,
UNW_ARM64_X30 = 30,
UNW_ARM64_LR = 30,
UNW_ARM64_X31 = 31,
UNW_ARM64_SP = 31,
// reserved block
UNW_ARM64_D0 = 64,
UNW_ARM64_D1 = 65,
UNW_ARM64_D2 = 66,
UNW_ARM64_D3 = 67,
UNW_ARM64_D4 = 68,
UNW_ARM64_D5 = 69,
UNW_ARM64_D6 = 70,
UNW_ARM64_D7 = 71,
UNW_ARM64_D8 = 72,
UNW_ARM64_D9 = 73,
UNW_ARM64_D10 = 74,
UNW_ARM64_D11 = 75,
UNW_ARM64_D12 = 76,
UNW_ARM64_D13 = 77,
UNW_ARM64_D14 = 78,
UNW_ARM64_D15 = 79,
UNW_ARM64_D16 = 80,
UNW_ARM64_D17 = 81,
UNW_ARM64_D18 = 82,
UNW_ARM64_D19 = 83,
UNW_ARM64_D20 = 84,
UNW_ARM64_D21 = 85,
UNW_ARM64_D22 = 86,
UNW_ARM64_D23 = 87,
UNW_ARM64_D24 = 88,
UNW_ARM64_D25 = 89,
UNW_ARM64_D26 = 90,
UNW_ARM64_D27 = 91,
UNW_ARM64_D28 = 92,
UNW_ARM64_D29 = 93,
UNW_ARM64_D30 = 94,
UNW_ARM64_D31 = 95,
};
#endif
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