glibc/sysdeps/powerpc/powerpc64/dl-machine.c
Tulio Magno Quites Machado Filho 3a32b7168d powerpc: Fix error message during relocation overflow
The function _itoa_word() writes characters from the higher address to
the lower address, requiring the destination string to reserve that size
before calling it.

	* sysdeps/powerpc/powerpc64/dl-machine.c (_dl_reloc_overflow):
	Reserve 16 chars to reloc_addr before calling _itoa_word.

Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2018-01-05 18:34:09 -02:00

67 lines
2.1 KiB
C

/* Machine-dependent ELF dynamic relocation functions. PowerPC64 version.
Copyright (C) 1995-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, see <http://www.gnu.org/licenses/>. */
#include <string.h>
#include <unistd.h>
#include <ldsodefs.h>
#include <_itoa.h>
#include <dl-machine.h>
void
_dl_reloc_overflow (struct link_map *map,
const char *name,
Elf64_Addr *const reloc_addr,
const Elf64_Sym *refsym)
{
char buffer[1024];
char *t;
t = stpcpy (buffer, name);
/* Notice that _itoa_word() writes characters from the higher address to the
lower address, requiring the destination string to reserve all the
required size before the call. */
t = stpcpy (t, " reloc at 0x0000000000000000");
_itoa_word ((unsigned long) reloc_addr, t, 16, 0);
if (refsym)
{
const char *strtab;
strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
t = stpcpy (t, " for symbol `");
t = stpcpy (t, strtab + refsym->st_name);
t = stpcpy (t, "'");
}
t = stpcpy (t, " out of range");
_dl_signal_error (0, map->l_name, NULL, buffer);
}
#if _CALL_ELF == 2
void
_dl_error_localentry (struct link_map *map, const Elf64_Sym *refsym)
{
char buffer[1024];
char *t;
const char *strtab;
strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
t = stpcpy (buffer, "expected localentry:0 `");
t = stpcpy (t, strtab + refsym->st_name);
t = stpcpy (t, "'");
_dl_signal_error (0, map->l_name, NULL, buffer);
}
#endif