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104 lines
2.9 KiB
C
104 lines
2.9 KiB
C
/* Internal definitions for interface for libebl.
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Copyright (C) 2000-2009, 2013, 2014 Red Hat, Inc.
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This file is part of elfutils.
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This file is free software; you can redistribute it and/or modify
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it under the terms of either
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at
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your option) any later version
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or
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* the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at
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your option) any later version
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or both in parallel, as here.
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elfutils is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received copies of the GNU General Public License and
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the GNU Lesser General Public License along with this program. If
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not, see <http://www.gnu.org/licenses/>. */
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#ifndef _LIBEBLP_H
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#define _LIBEBLP_H 1
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#include <gelf.h>
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#include <libasm.h>
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#include <libebl.h>
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#include <libintl.h>
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/* Backend handle. */
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struct ebl
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{
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/* Machine name. */
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const char *name;
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/* Emulation name. */
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const char *emulation;
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/* ELF machine, class, and data encoding. */
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uint_fast16_t machine;
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uint_fast8_t class;
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uint_fast8_t data;
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/* The libelf handle (if known). */
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Elf *elf;
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/* See ebl-hooks.h for the declarations of the hook functions. */
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# define EBLHOOK(name) (*name)
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# include "ebl-hooks.h"
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# undef EBLHOOK
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/* Size of entry in Sysv-style hash table. */
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int sysvhash_entrysize;
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/* Number of registers to allocate for ebl_set_initial_registers_tid.
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Ebl architecture can unwind iff FRAME_NREGS > 0. */
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size_t frame_nregs;
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/* Offset to apply to the value of the return_address_register, as
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fetched from a Dwarf CFI. This is used by some backends, where
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the return_address_register actually contains the call
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address. */
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int ra_offset;
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/* Mask to use to turn a function value into a real function address
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in case the architecture adds some extra non-address bits to it.
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If not initialized (0) then ebl_func_addr_mask will return ~0,
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otherwise it should be the actual mask to use. */
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GElf_Addr func_addr_mask;
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/* Function descriptor load address and table as used by
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ebl_resolve_sym_value if available for this arch. */
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GElf_Addr fd_addr;
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Elf_Data *fd_data;
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/* Internal data. */
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void *dlhandle;
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};
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/* Type of the initialization functions in the backend modules. */
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typedef const char *(*ebl_bhinit_t) (Elf *, GElf_Half, Ebl *, size_t);
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/* gettext helper macros. */
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#undef _
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#define _(Str) dgettext ("elfutils", Str)
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/* LEB128 constant helper macros. */
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#define ULEB128_7(x) (BUILD_BUG_ON_ZERO ((x) >= (1U << 7)) + (x))
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#define BUILD_BUG_ON_ZERO(x) (sizeof (char [(x) ? -1 : 1]) - 1)
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#endif /* libeblP.h */
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