| /* libunwind - a platform-independent unwind library |
| Copyright (C) 2006-2007 IBM |
| Contributed by |
| Corey Ashford <cjashfor@us.ibm.com> |
| Jose Flavio Aguilar Paulino <jflavio@br.ibm.com> <joseflavio@gmail.com> |
| |
| Copied from libunwind-x86_64.h, modified slightly for building |
| frysk successfully on ppc64, by Wu Zhou <woodzltc@cn.ibm.com> |
| Will be replaced when libunwind is ready on ppc64 platform. |
| |
| 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 <ucontext.h> |
| |
| #define UNW_TARGET ppc64 |
| #define UNW_TARGET_PPC64 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. |
| * |
| * To simplify this whole process, we are at least initially taking the |
| * tack that UNW_PPC64_* map straight across to the .eh_frame column register |
| * numbers. These register numbers come from gcc's source in |
| * gcc/config/rs6000/rs6000.h |
| * |
| * UNW_TDEP_CURSOR_LEN is in terms of unw_word_t size. Since we have 115 |
| * elements in the loc array, each sized 2 * unw_word_t, plus the rest of |
| * the cursor struct, this puts us at about 2 * 115 + 40 = 270. Let's |
| * round that up to 280. |
| */ |
| |
| #define UNW_TDEP_CURSOR_LEN 280 |
| |
| #if __WORDSIZE==32 |
| typedef uint32_t unw_word_t; |
| typedef int32_t unw_sword_t; |
| #else |
| typedef uint64_t unw_word_t; |
| typedef int64_t unw_sword_t; |
| #endif |
| |
| typedef long double unw_tdep_fpreg_t; |
| |
| /* |
| * Vector register (in PowerPC64 used for AltiVec registers) |
| */ |
| typedef struct { |
| uint64_t halves[2]; |
| } unw_tdep_vreg_t; |
| |
| typedef enum |
| { |
| UNW_PPC64_R0, |
| UNW_PPC64_R1, /* called STACK_POINTER in gcc */ |
| UNW_PPC64_R2, |
| UNW_PPC64_R3, |
| UNW_PPC64_R4, |
| UNW_PPC64_R5, |
| UNW_PPC64_R6, |
| UNW_PPC64_R7, |
| UNW_PPC64_R8, |
| UNW_PPC64_R9, |
| UNW_PPC64_R10, |
| UNW_PPC64_R11, /* called STATIC_CHAIN in gcc */ |
| UNW_PPC64_R12, |
| UNW_PPC64_R13, |
| UNW_PPC64_R14, |
| UNW_PPC64_R15, |
| UNW_PPC64_R16, |
| UNW_PPC64_R17, |
| UNW_PPC64_R18, |
| UNW_PPC64_R19, |
| UNW_PPC64_R20, |
| UNW_PPC64_R21, |
| UNW_PPC64_R22, |
| UNW_PPC64_R23, |
| UNW_PPC64_R24, |
| UNW_PPC64_R25, |
| UNW_PPC64_R26, |
| UNW_PPC64_R27, |
| UNW_PPC64_R28, |
| UNW_PPC64_R29, |
| UNW_PPC64_R30, |
| UNW_PPC64_R31, /* called HARD_FRAME_POINTER in gcc */ |
| |
| UNW_PPC64_F0 = 32, |
| UNW_PPC64_F1, |
| UNW_PPC64_F2, |
| UNW_PPC64_F3, |
| UNW_PPC64_F4, |
| UNW_PPC64_F5, |
| UNW_PPC64_F6, |
| UNW_PPC64_F7, |
| UNW_PPC64_F8, |
| UNW_PPC64_F9, |
| UNW_PPC64_F10, |
| UNW_PPC64_F11, |
| UNW_PPC64_F12, |
| UNW_PPC64_F13, |
| UNW_PPC64_F14, |
| UNW_PPC64_F15, |
| UNW_PPC64_F16, |
| UNW_PPC64_F17, |
| UNW_PPC64_F18, |
| UNW_PPC64_F19, |
| UNW_PPC64_F20, |
| UNW_PPC64_F21, |
| UNW_PPC64_F22, |
| UNW_PPC64_F23, |
| UNW_PPC64_F24, |
| UNW_PPC64_F25, |
| UNW_PPC64_F26, |
| UNW_PPC64_F27, |
| UNW_PPC64_F28, |
| UNW_PPC64_F29, |
| UNW_PPC64_F30, |
| UNW_PPC64_F31, |
| /* Note that there doesn't appear to be an .eh_frame register column |
| for the FPSCR register. I don't know why this is. Since .eh_frame |
| info is what this implementation uses for unwinding, we have no way |
| to unwind this register, and so we will not expose an FPSCR register |
| number in the libunwind API. |
| */ |
| |
| UNW_PPC64_LR = 65, |
| UNW_PPC64_CTR = 66, |
| UNW_PPC64_ARG_POINTER = 67, |
| |
| UNW_PPC64_CR0 = 68, |
| UNW_PPC64_CR1, |
| UNW_PPC64_CR2, |
| UNW_PPC64_CR3, |
| UNW_PPC64_CR4, |
| /* CR5 .. CR7 are currently unused */ |
| UNW_PPC64_CR5, |
| UNW_PPC64_CR6, |
| UNW_PPC64_CR7, |
| |
| UNW_PPC64_XER = 76, |
| |
| UNW_PPC64_V0 = 77, |
| UNW_PPC64_V1, |
| UNW_PPC64_V2, |
| UNW_PPC64_V3, |
| UNW_PPC64_V4, |
| UNW_PPC64_V5, |
| UNW_PPC64_V6, |
| UNW_PPC64_V7, |
| UNW_PPC64_V8, |
| UNW_PPC64_V9, |
| UNW_PPC64_V10, |
| UNW_PPC64_V11, |
| UNW_PPC64_V12, |
| UNW_PPC64_V13, |
| UNW_PPC64_V14, |
| UNW_PPC64_V15, |
| UNW_PPC64_V16, |
| UNW_PPC64_V17, |
| UNW_PPC64_V18, |
| UNW_PPC64_V19, |
| UNW_PPC64_V20, |
| UNW_PPC64_V21, |
| UNW_PPC64_V22, |
| UNW_PPC64_V23, |
| UNW_PPC64_V24, |
| UNW_PPC64_V25, |
| UNW_PPC64_V26, |
| UNW_PPC64_V27, |
| UNW_PPC64_V28, |
| UNW_PPC64_V29, |
| UNW_PPC64_V30, |
| UNW_PPC64_V31, |
| |
| UNW_PPC64_VRSAVE = 109, |
| UNW_PPC64_VSCR = 110, |
| UNW_PPC64_SPE_ACC = 111, |
| UNW_PPC64_SPEFSCR = 112, |
| |
| /* frame info (read-only) */ |
| UNW_PPC64_FRAME_POINTER, |
| UNW_PPC64_NIP, |
| |
| |
| UNW_TDEP_LAST_REG = UNW_PPC64_NIP, |
| |
| UNW_TDEP_IP = UNW_PPC64_NIP, |
| UNW_TDEP_SP = UNW_PPC64_R1, |
| UNW_TDEP_EH = UNW_PPC64_R12 |
| } |
| ppc64_regnum_t; |
| |
| /* |
| * According to David Edelsohn, GNU gcc uses R3, R4, R5, and maybe R6 for |
| * passing parameters to exception handlers. |
| */ |
| |
| #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 ppc64, we can directly use ucontext_t as the unwind context. */ |
| typedef ucontext_t unw_tdep_context_t; |
| |
| /* XXX this is not ideal: an application should not be prevented from |
| using the "getcontext" name just because it's using libunwind. We |
| can't just use __getcontext() either, because that isn't exported |
| by glibc... */ |
| #define unw_tdep_getcontext(uc) (getcontext (uc), 0) |
| |
| #include "libunwind-dynamic.h" |
| |
| typedef struct |
| { |
| /* no ppc64-specific auxiliary proc-info */ |
| /* ANDROID support update. */ |
| char __reserved; |
| /* End of ANDROID update. */ |
| } |
| unw_tdep_proc_info_t; |
| |
| #include "libunwind-common.h" |
| |
| #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 */ |