73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
/* dl.c - arch-dependent part of loadable module support */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2002,2004,2005,2007,2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/dl.h>
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#include <grub/elf.h>
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#include <grub/misc.h>
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#include <grub/err.h>
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#include <grub/mm.h>
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#pragma GCC diagnostic ignored "-Wcast-align"
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void
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grub_ia64_dl_get_tramp_got_size (const void *ehdr, grub_size_t *tramp,
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grub_size_t *got)
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{
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const Elf64_Ehdr *e = ehdr;
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grub_size_t cntt = 0, cntg = 0;;
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const Elf64_Shdr *s;
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unsigned i;
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/* Find a symbol table. */
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for (i = 0, s = (Elf64_Shdr *) ((char *) e + grub_le_to_cpu32 (e->e_shoff));
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i < grub_le_to_cpu16 (e->e_shnum);
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i++, s = (Elf64_Shdr *) ((char *) s + grub_le_to_cpu16 (e->e_shentsize)))
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if (grub_le_to_cpu32 (s->sh_type) == SHT_SYMTAB)
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break;
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if (i == grub_le_to_cpu16 (e->e_shnum))
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return;
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for (i = 0, s = (Elf64_Shdr *) ((char *) e + grub_le_to_cpu32 (e->e_shoff));
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i < grub_le_to_cpu16 (e->e_shnum);
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i++, s = (Elf64_Shdr *) ((char *) s + grub_le_to_cpu16 (e->e_shentsize)))
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if (grub_le_to_cpu32 (s->sh_type) == SHT_RELA)
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{
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Elf64_Rela *rel, *max;
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for (rel = (Elf64_Rela *) ((char *) e + grub_le_to_cpu32 (s->sh_offset)),
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max = rel + grub_le_to_cpu32 (s->sh_size) / grub_le_to_cpu16 (s->sh_entsize);
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rel < max; rel++)
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switch (ELF64_R_TYPE (grub_le_to_cpu32 (rel->r_info)))
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{
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case R_IA64_PCREL21B:
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cntt++;
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break;
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case R_IA64_LTOFF_FPTR22:
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case R_IA64_LTOFF22X:
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case R_IA64_LTOFF22:
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cntg++;
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break;
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}
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}
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*tramp = cntt;
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*got = cntg;
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}
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