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- /* vi: set sw=8 ts=8: */
- /*
- * ldso/ldso/sh64/resolve.S
- *
- * SuperH (sh64) dynamic resolver support
- *
- * Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org>
- *
- * All rights reserved.
- *
- * 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.
- * 2. The name of the above contributors may not be
- * used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE 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 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.
- */
- .section .text..SHmedia32,"ax"
- .globl _dl_linux_resolver
- .globl _dl_linux_resolve
- .type _dl_linux_resolve, @function
- .balign 16
- _dl_linux_resolve:
- addi r15, -72, r15 ! make room on the stack
- pt _dl_linux_resolver, tr0
- st.q r15, 0, r2 ! save regs
- st.q r15, 8, r3
- st.q r15, 16, r4
- st.q r15, 24, r5
- st.q r15, 32, r6
- st.q r15, 40, r7
- st.q r15, 48, r8
- st.q r15, 56, r9
- st.q r15, 64, r18
- #ifdef HAVE_FPU
- addi r15, -48, r15 ! make room for FP regs
- fst.d r15, 0, dr0 ! save FP regs
- fst.d r15, 8, dr2
- fst.d r15, 16, dr4
- fst.d r15, 24, dr6
- fst.d r15, 32, dr8
- fst.d r15, 40, dr10
- #endif
- /*
- * Args for _dl_linux_resolver(), set in r17/r21 by PLT code
- */
- add r17, r63, r2 ! link map address
- add r21, r63, r3 ! GOT offset
- blink tr0, r18 ! call _dl_linux_resolver()
- ptabs/l r2, tr0 ! save result = addr of function called
- #ifdef HAVE_FPU
- fld.d r15, 0, dr0 ! restore FP regs
- fld.d r15, 8, dr2
- fld.d r15, 16, dr4
- fld.d r15, 24, dr6
- fld.d r15, 32, dr8
- fld.d r15, 40, dr10
- addi r15, 48, r15
- #endif
- ld.q r15, 0, r2 ! restore regs
- ld.q r15, 8, r3
- ld.q r15, 16, r4
- ld.q r15, 24, r5
- ld.q r15, 32, r6
- ld.q r15, 40, r7
- ld.q r15, 48, r8
- ld.q r15, 56, r9
- ld.q r15, 64, r18
- addi r15, 72, r15
- blink tr0, r63 ! jump to function address
- .size _dl_linux_resolve, . - _dl_linux_resolve
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