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https://github.com/tobast/libunwind-eh_elf.git
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8d5b1aeeff
Add support for the 32bit SuperH architecture running Linux. Specifically, support is added for SH4, and support for earlier SH versions and to the 64bit SH5 are left out. This was tested in qemu with a little-endian SH4 debian image & GCC 4.7 cross compiler.
114 lines
2.9 KiB
C
114 lines
2.9 KiB
C
/* libunwind - a platform-independent unwind library
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Copyright (C) 2008 CodeSourcery
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Copyright (C) 2012 Tommi Rantala <tt.rantala@gmail.com>
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This file is part of libunwind.
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#ifndef LIBUNWIND_H
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#define LIBUNWIND_H
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#if defined(__cplusplus) || defined(c_plusplus)
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extern "C" {
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#endif
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#include <inttypes.h>
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#include <stddef.h>
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#include <ucontext.h>
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#define UNW_TARGET sh
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#define UNW_TARGET_SH 1
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#define _U_TDEP_QP_TRUE 0 /* see libunwind-dynamic.h */
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/* This needs to be big enough to accommodate "struct cursor", while
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leaving some slack for future expansion. Changing this value will
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require recompiling all users of this library. Stack allocation is
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relatively cheap and unwind-state copying is relatively rare, so we
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want to err on making it rather too big than too small. */
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#define UNW_TDEP_CURSOR_LEN 4096
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typedef uint32_t unw_word_t;
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typedef int32_t unw_sword_t;
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typedef long double unw_tdep_fpreg_t;
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typedef enum
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{
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UNW_SH_R0,
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UNW_SH_R1,
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UNW_SH_R2,
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UNW_SH_R3,
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UNW_SH_R4,
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UNW_SH_R5,
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UNW_SH_R6,
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UNW_SH_R7,
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UNW_SH_R8,
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UNW_SH_R9,
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UNW_SH_R10,
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UNW_SH_R11,
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UNW_SH_R12,
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UNW_SH_R13,
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UNW_SH_R14,
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UNW_SH_R15,
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UNW_SH_PC,
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UNW_SH_PR,
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UNW_TDEP_LAST_REG = UNW_SH_PR,
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UNW_TDEP_IP = UNW_SH_PR,
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UNW_TDEP_SP = UNW_SH_R15,
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UNW_TDEP_EH = UNW_SH_R0
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}
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sh_regnum_t;
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#define UNW_TDEP_NUM_EH_REGS 2
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typedef ucontext_t unw_tdep_context_t;
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#define unw_tdep_getcontext(uc) (getcontext (uc), 0)
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typedef struct unw_tdep_save_loc
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{
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/* Additional target-dependent info on a save location. */
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}
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unw_tdep_save_loc_t;
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#include "libunwind-dynamic.h"
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typedef struct
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{
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/* no sh-specific auxiliary proc-info */
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}
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unw_tdep_proc_info_t;
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#include "libunwind-common.h"
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#define unw_tdep_is_fpreg UNW_ARCH_OBJ(is_fpreg)
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extern int unw_tdep_is_fpreg (int);
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#if defined(__cplusplus) || defined(c_plusplus)
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}
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#endif
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#endif /* LIBUNWIND_H */
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