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Diffstat (limited to 'src/third_party/unwind/dist/include/libunwind-ia64.h')
| -rw-r--r-- | src/third_party/unwind/dist/include/libunwind-ia64.h | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/src/third_party/unwind/dist/include/libunwind-ia64.h b/src/third_party/unwind/dist/include/libunwind-ia64.h new file mode 100644 index 00000000000..0cc4f39eaab --- /dev/null +++ b/src/third_party/unwind/dist/include/libunwind-ia64.h @@ -0,0 +1,194 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2001-2004 Hewlett-Packard Co + Contributed by David Mosberger-Tang <davidm@hpl.hp.com> + +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 + +#include <inttypes.h> +#include <ucontext.h> + +#if defined(__cplusplus) || defined(c_plusplus) +extern "C" { +#endif + +#ifdef ia64 + /* This works around a bug in Intel's ECC v7.0 which defines "ia64" + as "1". */ +# undef ia64 +#endif + +#ifdef __hpux + /* On HP-UX, there is no hope of supporting UNW_LOCAL_ONLY, because + it's impossible to obtain the address of the members in the + sigcontext structure. */ +# undef UNW_LOCAL_ONLY +# define UNW_GENERIC_ONLY +#endif + +#define UNW_TARGET ia64 +#define UNW_TARGET_IA64 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 511 + +/* If this bit is it indicates that the procedure saved all of ar.bsp, + ar.bspstore, and ar.rnat. If, additionally, ar.bsp != saved ar.bsp, + then this procedure has performed a register-backing-store switch. */ +#define UNW_PI_FLAG_IA64_RBS_SWITCH_BIT (UNW_PI_FLAG_FIRST_TDEP_BIT + 0) + +#define UNW_PI_FLAG_IA64_RBS_SWITCH (1 << UNW_PI_FLAG_IA64_RBS_SWITCH_BIT) + +typedef uint64_t unw_word_t; +typedef int64_t unw_sword_t; + +/* On IA-64, we want to access the contents of floating-point + registers as a pair of "words", but to ensure 16-byte alignment, we + make it a union that contains a "long double". This will do the + Right Thing on all known IA-64 platforms, including HP-UX. */ +typedef union + { + struct { unw_word_t bits[2]; } raw; + long double dummy; /* dummy to force 16-byte alignment */ + } +unw_tdep_fpreg_t; + +typedef struct + { + /* no ia64-specific auxiliary proc-info */ + } +unw_tdep_proc_info_t; + +typedef enum + { + /* Note: general registers are excepted to start with index 0. + This convention facilitates architecture-independent + implementation of the C++ exception handling ABI. See + _Unwind_SetGR() and _Unwind_GetGR() for details. */ + UNW_IA64_GR = 0, /* general registers (r0..r127) */ + UNW_IA64_GP = UNW_IA64_GR + 1, + UNW_IA64_TP = UNW_IA64_GR + 13, + + UNW_IA64_NAT = UNW_IA64_GR + 128, /* NaT registers (nat0..nat127) */ + + UNW_IA64_FR = UNW_IA64_NAT + 128, /* fp registers (f0..f127) */ + + UNW_IA64_AR = UNW_IA64_FR + 128, /* application registers (ar0..r127) */ + UNW_IA64_AR_RSC = UNW_IA64_AR + 16, + UNW_IA64_AR_BSP = UNW_IA64_AR + 17, + UNW_IA64_AR_BSPSTORE = UNW_IA64_AR + 18, + UNW_IA64_AR_RNAT = UNW_IA64_AR + 19, + UNW_IA64_AR_CSD = UNW_IA64_AR + 25, + UNW_IA64_AR_26 = UNW_IA64_AR + 26, + UNW_IA64_AR_SSD = UNW_IA64_AR_26, + UNW_IA64_AR_CCV = UNW_IA64_AR + 32, + UNW_IA64_AR_UNAT = UNW_IA64_AR + 36, + UNW_IA64_AR_FPSR = UNW_IA64_AR + 40, + UNW_IA64_AR_PFS = UNW_IA64_AR + 64, + UNW_IA64_AR_LC = UNW_IA64_AR + 65, + UNW_IA64_AR_EC = UNW_IA64_AR + 66, + + UNW_IA64_BR = UNW_IA64_AR + 128, /* branch registers (b0..p7) */ + UNW_IA64_RP = UNW_IA64_BR + 0, /* return pointer (rp) */ + UNW_IA64_PR = UNW_IA64_BR + 8, /* predicate registers (p0..p63) */ + UNW_IA64_CFM, + + /* frame info: */ + UNW_IA64_BSP, + UNW_IA64_IP, + UNW_IA64_SP, + + UNW_TDEP_LAST_REG = UNW_IA64_SP, + + UNW_TDEP_IP = UNW_IA64_IP, + UNW_TDEP_SP = UNW_IA64_SP, + UNW_TDEP_EH = UNW_IA64_GR + 15 + } +ia64_regnum_t; + +#define UNW_TDEP_NUM_EH_REGS 4 /* r15-r18 are exception args */ + +typedef struct unw_tdep_save_loc + { + /* Additional target-dependent info on a save location. On IA-64, + we use this to provide the bit number in which a NaT bit gets + saved. */ + uint8_t nat_bitnr; + + /* Padding reserved for future use. */ + uint8_t reserved[7]; + } +unw_tdep_save_loc_t; + +/* On IA-64, we can directly use ucontext_t as the unwind context. */ +typedef ucontext_t unw_tdep_context_t; + +#define unw_tdep_is_fpreg(r) ((unsigned) ((r) - UNW_IA64_FR) < 128) + +#include "libunwind-dynamic.h" +#include "libunwind-common.h" + +#ifdef __hpux + /* In theory, we could use _Uia64_getcontext() on HP-UX as well, but + the benefit of doing so would be marginal given that it can't + support UNW_LOCAL_ONLY. */ +# define unw_tdep_getcontext getcontext +#else +# define unw_tdep_getcontext UNW_ARCH_OBJ (getcontext) + extern int unw_tdep_getcontext (unw_tdep_context_t *); +#endif + +/* This is a helper routine to search an ia64 unwind table. If the + address-space argument AS points to something other than the local + address-space, the memory for the unwind-info will be allocated + with malloc(), and should be free()d during the put_unwind_info() + callback. This routine is signal-safe for the local-address-space + case ONLY. */ +#define unw_search_ia64_unwind_table UNW_OBJ(search_unwind_table) +extern int unw_search_ia64_unwind_table (unw_addr_space_t, unw_word_t, + unw_dyn_info_t *, unw_proc_info_t *, + int, void *); + +/* This is a helper routine which the get_dyn_info_list_addr() + callback can use to locate the special dynamic-info list entry in + an IA-64 unwind table. If the entry exists in the table, the + list-address is returned. In all other cases, 0 is returned. */ +extern unw_word_t _Uia64_find_dyn_list (unw_addr_space_t, unw_dyn_info_t *, + void *); + +/* This is a helper routine to obtain the kernel-unwind info. It is + signal-safe. */ +extern int _Uia64_get_kernel_table (unw_dyn_info_t *); + +#if defined(__cplusplus) || defined(c_plusplus) +} +#endif + +#endif /* LIBUNWIND_H */ |