| /* libunwind - a platform-independent unwind library |
| Copyright (C) 2001-2004 Hewlett-Packard Co |
| Contributed by David Mosberger-Tang <davidm@hpl.hp.com> |
| Copyright (C) 2013 Linaro Limited |
| |
| This file is part of libunwind. |
| |
| Permission is hereby granted, free of charge, to any person obtaining |
| a copy of this software and associated documentation files (the |
| "Software"), to deal in the Software without restriction, including |
| without limitation the rights to use, copy, modify, merge, publish, |
| distribute, sublicense, and/or sell copies of the Software, and to |
| permit persons to whom the Software is furnished to do so, subject to |
| the following conditions: |
| |
| The above copyright notice and this permission notice shall be |
| included in all copies or substantial portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
| LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ |
| |
| #ifndef LIBUNWIND_H |
| #define LIBUNWIND_H |
| |
| #if defined(__cplusplus) || defined(c_plusplus) |
| extern "C" { |
| #endif |
| |
| #include <inttypes.h> |
| #include <stddef.h> |
| #include <ucontext.h> |
| |
| #define UNW_TARGET aarch64 |
| #define UNW_TARGET_AARCH64 1 |
| |
| #define _U_TDEP_QP_TRUE 0 /* see libunwind-dynamic.h */ |
| |
| /* This needs to be big enough to accommodate "struct cursor", while |
| leaving some slack for future expansion. Changing this value will |
| require recompiling all users of this library. Stack allocation is |
| relatively cheap and unwind-state copying is relatively rare, so we |
| want to err on making it rather too big than too small. */ |
| |
| #define UNW_TDEP_CURSOR_LEN 4096 |
| |
| typedef uint64_t unw_word_t; |
| typedef int64_t unw_sword_t; |
| |
| typedef long double unw_tdep_fpreg_t; |
| |
| typedef struct |
| { |
| /* no aarch64-specific auxiliary proc-info */ |
| /* ANDROID support update. */ |
| char __reserved; |
| /* End of ANDROID update. */ |
| } |
| unw_tdep_proc_info_t; |
| |
| typedef enum |
| { |
| /* 64-bit general registers. */ |
| UNW_AARCH64_X0, |
| UNW_AARCH64_X1, |
| UNW_AARCH64_X2, |
| UNW_AARCH64_X3, |
| UNW_AARCH64_X4, |
| UNW_AARCH64_X5, |
| UNW_AARCH64_X6, |
| UNW_AARCH64_X7, |
| UNW_AARCH64_X8, |
| |
| /* Temporary registers. */ |
| UNW_AARCH64_X9, |
| UNW_AARCH64_X10, |
| UNW_AARCH64_X11, |
| UNW_AARCH64_X12, |
| UNW_AARCH64_X13, |
| UNW_AARCH64_X14, |
| UNW_AARCH64_X15, |
| |
| /* Intra-procedure-call temporary registers. */ |
| UNW_AARCH64_X16, |
| UNW_AARCH64_X17, |
| |
| /* Callee-saved registers. */ |
| UNW_AARCH64_X18, |
| UNW_AARCH64_X19, |
| UNW_AARCH64_X20, |
| UNW_AARCH64_X21, |
| UNW_AARCH64_X22, |
| UNW_AARCH64_X23, |
| UNW_AARCH64_X24, |
| UNW_AARCH64_X25, |
| UNW_AARCH64_X26, |
| UNW_AARCH64_X27, |
| UNW_AARCH64_X28, |
| |
| /* 64-bit frame pointer. */ |
| UNW_AARCH64_X29, |
| |
| /* 64-bit link register. */ |
| UNW_AARCH64_X30, |
| |
| /* 64-bit stack pointer. */ |
| UNW_AARCH64_SP = 31, |
| UNW_AARCH64_PC, |
| UNW_AARCH64_PSTATE, |
| |
| /* 128-bit FP/Advanced SIMD registers. */ |
| UNW_AARCH64_V0 = 64, |
| UNW_AARCH64_V1, |
| UNW_AARCH64_V2, |
| UNW_AARCH64_V3, |
| UNW_AARCH64_V4, |
| UNW_AARCH64_V5, |
| UNW_AARCH64_V6, |
| UNW_AARCH64_V7, |
| UNW_AARCH64_V8, |
| UNW_AARCH64_V9, |
| UNW_AARCH64_V10, |
| UNW_AARCH64_V11, |
| UNW_AARCH64_V12, |
| UNW_AARCH64_V13, |
| UNW_AARCH64_V14, |
| UNW_AARCH64_V15, |
| UNW_AARCH64_V16, |
| UNW_AARCH64_V17, |
| UNW_AARCH64_V18, |
| UNW_AARCH64_V19, |
| UNW_AARCH64_V20, |
| UNW_AARCH64_V21, |
| UNW_AARCH64_V22, |
| UNW_AARCH64_V23, |
| UNW_AARCH64_V24, |
| UNW_AARCH64_V25, |
| UNW_AARCH64_V26, |
| UNW_AARCH64_V27, |
| UNW_AARCH64_V28, |
| UNW_AARCH64_V29, |
| UNW_AARCH64_V30, |
| UNW_AARCH64_V31, |
| |
| UNW_AARCH64_FPSR, |
| UNW_AARCH64_FPCR, |
| |
| /* For AArch64, the CFA is the value of SP (x31) at the call site of the |
| previous frame. */ |
| UNW_AARCH64_CFA = UNW_AARCH64_SP, |
| |
| UNW_TDEP_LAST_REG = UNW_AARCH64_FPCR, |
| |
| UNW_TDEP_IP = UNW_AARCH64_X30, |
| UNW_TDEP_SP = UNW_AARCH64_SP, |
| UNW_TDEP_EH = UNW_AARCH64_X0, |
| |
| } |
| aarch64_regnum_t; |
| |
| /* Use R0 through R3 to pass exception handling information. */ |
| #define UNW_TDEP_NUM_EH_REGS 4 |
| |
| typedef struct unw_tdep_save_loc |
| { |
| /* Additional target-dependent info on a save location. */ |
| /* ANDROID support update. */ |
| char __reserved; |
| /* End of ANDROID update. */ |
| } |
| unw_tdep_save_loc_t; |
| |
| |
| /* On AArch64, we can directly use ucontext_t as the unwind context. */ |
| typedef ucontext_t unw_tdep_context_t; |
| |
| #include "libunwind-common.h" |
| #include "libunwind-dynamic.h" |
| |
| /* ANDROID support update. */ |
| /* There is no getcontext in Android. */ |
| #define unw_tdep_getcontext(uc) (({ \ |
| unw_tdep_context_t *unw_ctx = (uc); \ |
| register uint64_t *unw_base asm ("x0") = (uint64_t*) unw_ctx->uc_mcontext.regs; \ |
| __asm__ __volatile__ ( \ |
| "stp x0, x1, [%[base], #0]\n" \ |
| "stp x2, x3, [%[base], #16]\n" \ |
| "stp x4, x5, [%[base], #32]\n" \ |
| "stp x6, x7, [%[base], #48]\n" \ |
| "stp x8, x9, [%[base], #64]\n" \ |
| "stp x10, x11, [%[base], #80]\n" \ |
| "stp x12, x13, [%[base], #96]\n" \ |
| "stp x14, x15, [%[base], #112]\n" \ |
| "stp x16, x17, [%[base], #128]\n" \ |
| "stp x18, x19, [%[base], #144]\n" \ |
| "stp x20, x21, [%[base], #160]\n" \ |
| "stp x22, x23, [%[base], #176]\n" \ |
| "stp x24, x25, [%[base], #192]\n" \ |
| "stp x26, x27, [%[base], #208]\n" \ |
| "stp x28, x29, [%[base], #224]\n" \ |
| "str x30, [%[base], #240]\n" \ |
| "mov x1, sp\n" \ |
| "stp x1, x30, [%[base], #248]\n" \ |
| : [base] "+r" (unw_base) : : "x1", "memory"); \ |
| }), 0) |
| /* End of ANDROID update. */ |
| #define unw_tdep_is_fpreg UNW_ARCH_OBJ(is_fpreg) |
| |
| extern int unw_tdep_is_fpreg (int); |
| |
| #if defined(__cplusplus) || defined(c_plusplus) |
| } |
| #endif |
| |
| #endif /* LIBUNWIND_H */ |