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/* Copyright (C) 2011 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
/* Like x86_64, we pass the index of the relocation and not its offset.
In _dl_profile_fixup and _dl_call_pltexit we also use the index.
Therefore it is wasteful to compute the offset in the trampoline
just to reverse the operation immediately afterwards. */
#define reloc_offset reloc_arg * sizeof (PLTREL)
#define reloc_index reloc_arg
#include <elf/dl-runtime.c>
#include <sys/mman.h>
#include <arch/sim.h>
/* Support notifying the simulator about new objects. */
void internal_function
_dl_arch_map_object (struct link_map *l)
{
int shift;
#define DLPUTC(c) __insn_mtspr(SPR_SIM_CONTROL, \
(SIM_CONTROL_DLOPEN \
| ((c) << _SIM_CONTROL_OPERATOR_BITS)))
/* Write the library address in hex. */
DLPUTC ('0');
DLPUTC ('x');
for (shift = (int) sizeof (unsigned long) * 8 - 4; shift >= 0; shift -= 4)
DLPUTC ("0123456789abcdef"[(l->l_map_start >> shift) & 0xF]);
DLPUTC (':');
/* Write the library path, including the terminating '\0'. */
for (size_t i = 0;; i++)
{
DLPUTC (l->l_name[i]);
if (l->l_name[i] == '\0')
break;
}
#undef DLPUTC
}
/* Support notifying the simulator about removed objects prior to munmap(). */
void internal_function
_dl_unmap (struct link_map *l)
{
int shift;
#define DLPUTC(c) __insn_mtspr(SPR_SIM_CONTROL, \
(SIM_CONTROL_DLCLOSE \
| ((c) << _SIM_CONTROL_OPERATOR_BITS)))
/* Write the library address in hex. */
DLPUTC ('0');
DLPUTC ('x');
for (shift = (int) sizeof (unsigned long) * 8 - 4; shift >= 0; shift -= 4)
DLPUTC ("0123456789abcdef"[(l->l_map_start >> shift) & 0xF]);
DLPUTC ('\0');
#undef DLPUTC
__munmap ((void *) l->l_map_start, l->l_map_end - l->l_map_start);
}
#define DL_UNMAP(map) _dl_unmap (map)
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