mirror of
https://github.com/openharmony/third_party_elfutils.git
synced 2026-08-26 20:37:33 -04:00
Mark Wielaard
27a388bdd2
We used to do several sanity checks when the ebl backend libraries were loaded to make sure there was no version mismatch. When initializing the backend we passed the current Ebl struct size so the library could check it supported the given Ebl struct and we checked that the init method returned the correct build time module version string. Neither are necessary now that the backends are builtin. Remove both the struct size check and the MODVERSION string (which wasn't actually checked anymore). Make the init function return the given Ebl handle or NULL on error (no init function currently indicates any error). Signed-off-by: Mark Wielaard <mark@klomp.org>
75 lines
2.2 KiB
C
75 lines
2.2 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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Ebl *
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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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{
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/* We handle it. */
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s390_init_reloc (eh);
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HOOK (eh, reloc_simple_type);
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HOOK (eh, check_special_symbol);
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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 eh;
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}
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