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