| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758 |
- /*-
- * Copyright (c) 1998, 2002 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by Christos Zoulas and by Charles M. Hannum.
- *
- * 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. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
- */
- /**
- * This asm method is copied from NetBSD. We changed the internal method that
- * gets called and the name, but it's still essentially the same as
- * _rtld_bind_start from libexec/ld.elf_so/arch/i386/rtld_start.S
- */
- .align 4
- .globl _plt_trampoline
- .hidden _plt_trampoline
- .type _plt_trampoline,@function
- _plt_trampoline: # (obj, reloff)
- pushf # save registers
- pushl %eax
- pushl %ecx
- pushl %edx
- pushl 20(%esp) # Copy of reloff
- pushl 20(%esp) # Copy of obj
- call _fixup_plt_entry@PLT # Call the binder
- addl $8,%esp # pop binder args
- movl %eax,20(%esp) # Store function to be called in obj
- popl %edx
- popl %ecx
- popl %eax
- popf
- leal 4(%esp),%esp # Discard reloff, do not change eflags
- ret
|
