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80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/* Initialization of S/390 specific backend library.
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Copyright (C) 2005, 2006, 2013 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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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#define BACKEND s390_
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#define RELOC_PREFIX R_390_
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#include "libebl_CPU.h"
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/* This defines the common reloc hooks based on arm_reloc.def. */
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#include "common-reloc.c"
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extern __typeof (s390_core_note) s390x_core_note;
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const char *
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s390_init (Elf *elf __attribute__ ((unused)),
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GElf_Half machine __attribute__ ((unused)),
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Ebl *eh,
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size_t ehlen)
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{
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/* Check whether the Elf_BH object has a sufficent size. */
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if (ehlen < sizeof (Ebl))
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return NULL;
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/* We handle it. */
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eh->name = "IBM S/390";
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s390_init_reloc (eh);
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HOOK (eh, reloc_simple_type);
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HOOK (eh, register_info);
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HOOK (eh, return_value_location);
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if (eh->class == ELFCLASS64)
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eh->core_note = s390x_core_note;
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else
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HOOK (eh, core_note);
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HOOK (eh, abi_cfi);
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/* gcc/config/ #define DWARF_FRAME_REGISTERS 34.
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But from the gcc/config/s390/s390.h "Register usage." comment it looks as
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if #32 (Argument pointer) and #33 (Condition code) are not used for
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unwinding. */
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eh->frame_nregs = 32;
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HOOK (eh, set_initial_registers_tid);
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if (eh->class == ELFCLASS32)
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HOOK (eh, normalize_pc);
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HOOK (eh, unwind);
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/* Only the 64-bit format uses the incorrect hash table entry size. */
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if (eh->class == ELFCLASS64)
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eh->sysvhash_entrysize = sizeof (Elf64_Xword);
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return MODVERSION;
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}
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