| /* 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 ppc32 |
| #define UNW_TARGET_PPC32 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_PPC32_* 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; |
| |
| typedef enum |
| { |
| UNW_PPC32_R0, |
| UNW_PPC32_R1, /* called STACK_POINTER in gcc */ |
| UNW_PPC32_R2, |
| UNW_PPC32_R3, |
| UNW_PPC32_R4, |
| UNW_PPC32_R5, |
| UNW_PPC32_R6, |
| UNW_PPC32_R7, |
| UNW_PPC32_R8, |
| UNW_PPC32_R9, |
| UNW_PPC32_R10, |
| UNW_PPC32_R11, /* called STATIC_CHAIN in gcc */ |
| UNW_PPC32_R12, |
| UNW_PPC32_R13, |
| UNW_PPC32_R14, |
| UNW_PPC32_R15, |
| UNW_PPC32_R16, |
| UNW_PPC32_R17, |
| UNW_PPC32_R18, |
| UNW_PPC32_R19, |
| UNW_PPC32_R20, |
| UNW_PPC32_R21, |
| UNW_PPC32_R22, |
| UNW_PPC32_R23, |
| UNW_PPC32_R24, |
| UNW_PPC32_R25, |
| UNW_PPC32_R26, |
| UNW_PPC32_R27, |
| UNW_PPC32_R28, |
| UNW_PPC32_R29, |
| UNW_PPC32_R30, |
| UNW_PPC32_R31, /* called HARD_FRAME_POINTER in gcc */ |
| |
| /* Count Register */ |
| UNW_PPC32_CTR = 32, |
| /* Fixed-Point Status and Control Register */ |
| UNW_PPC32_XER = 33, |
| /* Condition Register */ |
| UNW_PPC32_CCR = 34, |
| /* Machine State Register */ |
| //UNW_PPC32_MSR = 35, |
| /* MQ or SPR0, not part of generic Power, part of MPC601 */ |
| //UNW_PPC32_MQ = 36, |
| /* Link Register */ |
| UNW_PPC32_LR = 36, |
| /* Floating Pointer Status and Control Register */ |
| UNW_PPC32_FPSCR = 37, |
| |
| UNW_PPC32_F0 = 48, |
| UNW_PPC32_F1, |
| UNW_PPC32_F2, |
| UNW_PPC32_F3, |
| UNW_PPC32_F4, |
| UNW_PPC32_F5, |
| UNW_PPC32_F6, |
| UNW_PPC32_F7, |
| UNW_PPC32_F8, |
| UNW_PPC32_F9, |
| UNW_PPC32_F10, |
| UNW_PPC32_F11, |
| UNW_PPC32_F12, |
| UNW_PPC32_F13, |
| UNW_PPC32_F14, |
| UNW_PPC32_F15, |
| UNW_PPC32_F16, |
| UNW_PPC32_F17, |
| UNW_PPC32_F18, |
| UNW_PPC32_F19, |
| UNW_PPC32_F20, |
| UNW_PPC32_F21, |
| UNW_PPC32_F22, |
| UNW_PPC32_F23, |
| UNW_PPC32_F24, |
| UNW_PPC32_F25, |
| UNW_PPC32_F26, |
| UNW_PPC32_F27, |
| UNW_PPC32_F28, |
| UNW_PPC32_F29, |
| UNW_PPC32_F30, |
| UNW_PPC32_F31, |
| |
| UNW_TDEP_LAST_REG = UNW_PPC32_F31, |
| |
| UNW_TDEP_IP = UNW_PPC32_LR, |
| UNW_TDEP_SP = UNW_PPC32_R1, |
| UNW_TDEP_EH = UNW_PPC32_R12 |
| } |
| ppc32_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 ppc, 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 ppc32-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 */ |