freebsd-skq/lib/csu/powerpc64/reloc.c

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/*-
* Copyright (c) 2019 Leandro Lupori
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
static void
crt1_handle_rela(const Elf_Rela *r)
{
typedef Elf_Addr (*ifunc_resolver_t)(
uint32_t, uint32_t, uint64_t, uint64_t,
uint64_t, uint64_t, uint64_t, uint64_t);
Elf_Addr *ptr, *where, target;
switch (ELF_R_TYPE(r->r_info)) {
case R_PPC_IRELATIVE:
ptr = (Elf_Addr *)r->r_addend;
where = (Elf_Addr *)r->r_offset;
target = ((ifunc_resolver_t)ptr)(cpu_features, cpu_features2,
0, 0, 0, 0, 0, 0);
*where = target;
break;
}
}