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/* Xtensa dynamic resolver.
Parts copied from glibc/sysdeps/xtensa/dl-trampoline.S
Copyright (C) 2007 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 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/>. */
#define MIN_FRAME_SIZE 32
#ifdef __XTENSA_EB__
#define XTENSA_IMM12_FLD_OFFSET 8
#else /* __XTENSA_EL__ */
#define XTENSA_IMM12_FLD_OFFSET 12
#endif /* __XTENSA_EL__ */
.text
.align 4
.global _dl_linux_resolve
.type _dl_linux_resolve, @function
_dl_linux_resolve:
/* Fix up the high 2 bits of the return address. */
movi a13, 0f
slli a12, a0, 2
0: extui a13, a13, 30, 2
ssai 2
src a12, a13, a12
/* Call the fixup function. */
movi a8, _dl_linux_resolver
callx8 a8
/* Extract the target's frame size from the ENTRY instruction. */
l32i a11, a10, 0
extui a11, a11, XTENSA_IMM12_FLD_OFFSET, 12
slli a11, a11, 3
addi a11, a11, -MIN_FRAME_SIZE
sub a11, sp, a11
movsp sp, a11
/* Jump to the next instruction past the ENTRY. */
addi a10, a10, 3
jx a10
.size _dl_linux_resolve, . - _dl_linux_resolve
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