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c79eac4c4c
NetBSD ld code except for local changes for dlopen() and friends and the hashing on the minor value of the shlibs. We should be binary compatible now with all their libraries. Obtained from: NetBSD
102 lines
3.2 KiB
ArmAsm
102 lines
3.2 KiB
ArmAsm
/*
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* Copyright (c) 1993 Paul Kranenburg
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Paul Kranenburg.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: mdprologue.S,v 1.3 1994/02/13 20:43:13 jkh Exp $
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*/
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/*
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* SPARC run-time link editor entry points.
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*/
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#define CRT_VERSION_SUN 1
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.seg "text" ! [internal]
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.proc 16
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.global _rtld_entry
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_rtld_entry:
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!#PROLOGUE# 0
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save %sp,-96,%sp
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L.1B:
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call L.2B
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sethi %hi((__GLOBAL_OFFSET_TABLE_-(L.1B-.))),%l7
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L.2B:
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!#PROLOGUE# 1
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or %l7,%lo((__GLOBAL_OFFSET_TABLE_-(L.1B-.))),%l7
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add %l7,%o7,%l7
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cmp %i0, CRT_VERSION_SUN ! is crtp passed in Sun style,
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bne 1f ! ie. relative to stack frame ?
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nop
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add %i1, %fp, %i1 ! if so, adjust to absolute address
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1:
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ld [%i1], %o3 ! load base address (crtp->crt_ba)
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ld [%l7], %o2 ! get __DYNAMIC address
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! from 1st GOT entry
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add %o2, %o3, %o2 ! relocate and make it 3rd arg.
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ld [%l7 + _rtld], %g1 ! get address of rtld()
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add %g1, %o3, %g1 ! relocate
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mov %i1, %o1 ! set up args, #2: crtp
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call %g1 ! rtld(version, crtp, dp)
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mov %i0, %o0 ! arg #1: version
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ret
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restore
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.seg "data" ! [internal]
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.seg "text"
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.global _binder_entry
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_binder_entry:
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!#PROLOGUE# 0
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save %sp,-96,%sp
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!L.1C:
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! call L.2C
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! sethi %hi((__GLOBAL_OFFSET_TABLE_-(L.1C-.))),%l7
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!L.2C:
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! or %l7,%lo((__GLOBAL_OFFSET_TABLE_-(L.1C-.))),%l7
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!#PROLOGUE# 1
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sub %i7, 4, %o0 ! get to jmpslot through pc
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ld [%i7+4], %o1 ! get relocation index
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sethi %hi(0x3fffff), %o2 ! -> reloc_index & 0x003fffff
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or %o2, %lo(0x3fffff), %o2 ! [internal]
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call _binder ! and call binder(jsp, reloc_index)
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and %o1, %o2, %o1
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mov %o0, %g1 ! return value == function address
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restore ! get rid of our context
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jmp %g1 ! and go.
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restore ! and the jmpslot context
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nop
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.seg "data" ! [internal]
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