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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /sysdeps/x86_64/dl-trampoline.S
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'sysdeps/x86_64/dl-trampoline.S')
-rw-r--r--sysdeps/x86_64/dl-trampoline.S189
1 files changed, 0 insertions, 189 deletions
diff --git a/sysdeps/x86_64/dl-trampoline.S b/sysdeps/x86_64/dl-trampoline.S
deleted file mode 100644
index c1686dae10..0000000000
--- a/sysdeps/x86_64/dl-trampoline.S
+++ /dev/null
@@ -1,189 +0,0 @@
-/* PLT trampolines.  x86-64 version.
-   Copyright (C) 2004, 2005 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, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <sysdep.h>
-
-	.text
-	.globl _dl_runtime_resolve
-	.type _dl_runtime_resolve, @function
-	.align 16
-	cfi_startproc
-_dl_runtime_resolve:
-	subq $56,%rsp
-	cfi_adjust_cfa_offset(72) # Incorporate PLT
-	movq %rax,(%rsp)	# Preserve registers otherwise clobbered.
-	movq %rcx, 8(%rsp)
-	movq %rdx, 16(%rsp)
-	movq %rsi, 24(%rsp)
-	movq %rdi, 32(%rsp)
-	movq %r8, 40(%rsp)
-	movq %r9, 48(%rsp)
-	movq 64(%rsp), %rsi	# Copy args pushed by PLT in register.
-	movq %rsi, %r11		# Multiply by 24
-	addq %r11, %rsi
-	addq %r11, %rsi
-	shlq $3, %rsi
-	movq 56(%rsp), %rdi	# %rdi: link_map, %rsi: reloc_offset
-	call _dl_fixup		# Call resolver.
-	movq %rax, %r11		# Save return value
-	movq 48(%rsp), %r9	# Get register content back.
-	movq 40(%rsp), %r8
-	movq 32(%rsp), %rdi
-	movq 24(%rsp), %rsi
-	movq 16(%rsp), %rdx
-	movq 8(%rsp), %rcx
-	movq (%rsp), %rax
-	addq $72, %rsp		# Adjust stack(PLT did 2 pushes)
-	cfi_adjust_cfa_offset(-72)
-	jmp *%r11		# Jump to function address.
-	cfi_endproc
-	.size _dl_runtime_resolve, .-_dl_runtime_resolve
-
-
-#ifndef PROF
-	.globl _dl_runtime_profile
-	.type _dl_runtime_profile, @function
-	.align 16
-	cfi_startproc
-_dl_runtime_profile:
-	subq $80, %rsp
-	cfi_adjust_cfa_offset(96) # Incorporate PLT
-	movq %rax, (%rsp)	# Preserve registers otherwise clobbered.
-	movq %rdx, 8(%rsp)
-	movq %r8, 16(%rsp)
-	movq %r9, 24(%rsp)
-	movq %rcx, 32(%rsp)
-	movq %rsi, 40(%rsp)
-	movq %rdi, 48(%rsp)
-	movq %rbp, 56(%rsp)	# Information for auditors.
-	leaq 96(%rsp), %rax
-	movq %rax, 64(%rsp)
-	leaq 8(%rsp), %rcx
-	movq 96(%rsp), %rdx	# Load return address if needed
-	movq 88(%rsp), %rsi	# Copy args pushed by PLT in register.
-	movq %rsi,%r11		# Multiply by 24
-	addq %r11,%rsi
-	addq %r11,%rsi
-	shlq $3, %rsi
-	movq 80(%rsp), %rdi	# %rdi: link_map, %rsi: reloc_offset
-	leaq 72(%rsp), %r8
-	call _dl_profile_fixup	# Call resolver.
-	movq %rax, %r11		# Save return value
-	movq 8(%rsp), %rdx	# Get back register content.
-	movq 16(%rsp), %r8
-	movq 24(%rsp), %r9
-	movq (%rsp),%rax
-	movq 72(%rsp), %r10
-	testq %r10, %r10
-	jns 1f
-	movq 32(%rsp), %rcx
-	movq 40(%rsp), %rsi
-	movq 48(%rsp), %rdi
-	addq $96,%rsp		# Adjust stack
-	cfi_adjust_cfa_offset (-96)
-	jmp *%r11		# Jump to function address.
-
-	/*
-	    +96     return address
-	    +88     PLT2
-	    +80     PLT1
-	    +72     free
-	    +64     %rsp
-	    +56     %rbp
-	    +48     %rdi
-	    +40     %rsi
-	    +32     %rcx
-	    +24     %r9
-	    +16     %r8
-	    +8      %rdx
-	   %esp     %rax
-	*/
-	cfi_adjust_cfa_offset (96)
-1:	movq %rbx, 72(%rsp)
-	cfi_rel_offset (1, 72)
-	leaq 104(%rsp), %rsi
-	movq %rsp, %rbx
-	cfi_def_cfa_register (1)
-	subq %r10, %rsp
-	movq %rsp, %rdi
-	movq %r10, %rcx
-	shrq $3, %rcx
-	rep
-	movsq
-	andq $0xfffffffffffffff0, %rsp
-	movq 32(%rbx), %rcx
-	movq 40(%rbx), %rsi
-	movq 48(%rbx), %rdi
-	call *%r11
-	movq %rbx, %rsp
-	cfi_def_cfa_register (7)
-	subq $72, %rsp
-	cfi_adjust_cfa_offset (72)
-	movq %rsp, %rcx
-	movq %rax, (%rcx)
-	movq %rdx, 8(%rcx)
-	/* Even though the stack is correctly aligned to allow using movaps
-	   we use movups.  Some callers might provide an incorrectly aligned
-	   stack and we do not want to have it blow up here.  */
-	movups %xmm0, 16(%rcx)
-	movups %xmm1, 32(%rcx)
-	fstpt 48(%rcx)
-	fstpt 64(%rcx)
-	/*
-	    +168    return address
-	    +160    PLT2
-	    +152    PLT1
-	    +144    free
-	    +136    %rsp
-	    +128    %rbp
-	    +120    %rdi
-	    +112    %rsi
-	    +104    %rcx
-	    +96     %r9
-	    +88     %r8
-	    +80     %rdx
-	    +64     %st1 result
-	    +48     %st result
-	    +32     %xmm1 result
-	    +16     %xmm0 result
-	    +8      %rdx result
-	   %esp     %rax result
-	*/
-	leaq 80(%rsp), %rdx
-	movq 144(%rsp), %rbx
-	cfi_restore (1)
-	movq 160(%rsp), %rsi	# Copy args pushed by PLT in register.
-	movq %rsi,%r11		# Multiply by 24
-	addq %r11,%rsi
-	addq %r11,%rsi
-	shlq $3, %rsi
-	movq 152(%rsp), %rdi	# %rdi: link_map, %rsi: reloc_offset
-	call _dl_call_pltexit
-	movq (%rsp), %rax
-	movq 8(%rsp), %rdx
-	movups 16(%rsp), %xmm0
-	movups 32(%rsp), %xmm1
-	fldt 64(%rsp)
-	fldt 48(%rsp)
-	addq $168, %rsp
-	cfi_adjust_cfa_offset (-168)
-	retq
-	cfi_endproc
-	.size _dl_runtime_profile, .-_dl_runtime_profile
-#endif