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Diffstat (limited to 'src/third_party/unwind/dist/include/libunwind-ppc32.h')
| -rw-r--r-- | src/third_party/unwind/dist/include/libunwind-ppc32.h | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/src/third_party/unwind/dist/include/libunwind-ppc32.h b/src/third_party/unwind/dist/include/libunwind-ppc32.h new file mode 100644 index 00000000000..47ebfde5a3c --- /dev/null +++ b/src/third_party/unwind/dist/include/libunwind-ppc32.h @@ -0,0 +1,207 @@ +/* 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. */ + } +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 */ + } +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 */ |