ObjFW  Check-in [d9c9a3d0bc]

Overview
Comment:Add forwardingTargetForSelector: for x86_64/Mach-O

This is for the ObjFW runtime - for the Apple runtime, this did already
exist.

Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA3-256: d9c9a3d0bce3411375bf5f56f8b71fcc24dcb6988ab51dae02e17cb806b07213
User & Date: js on 2016-07-03 12:19:33
Other Links: manifest | tags
Context
2016-07-03
13:29
Add -[OFTarArchiveEntry description] check-in: f4a5590b58 user: js tags: trunk
12:19
Add forwardingTargetForSelector: for x86_64/Mach-O check-in: d9c9a3d0bc user: js tags: trunk
12:01
runtime: Add objc_enumerationMutation() check-in: 5e267364ae user: js tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Modified PLATFORMS.md from [ff5aff9e89] to [fc3892b42f].

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resolveInstanceMethod:, which are always available):

  * ARM (EABI/ELF, Apple/Mach-O)
  * ARM64 (ARM64/ELF, Apple/Mach-O)
  * MIPS (O32/ELF, EABI/ELF)
  * PPC (SysV/ELF, EABI/ELF, Apple/Mach-O)
  * x86 (SysV/ELF, Apple/Mach-O, Win32/PE)
  * x86_64 (SysV/ELF, Apple/Mach-O, Win64/PE)

Apple means both, the Apple ABI and runtime.









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resolveInstanceMethod:, which are always available):

  * ARM (EABI/ELF, Apple/Mach-O)
  * ARM64 (ARM64/ELF, Apple/Mach-O)
  * MIPS (O32/ELF, EABI/ELF)
  * PPC (SysV/ELF, EABI/ELF, Apple/Mach-O)
  * x86 (SysV/ELF, Apple/Mach-O, Win32/PE)
  * x86_64 (SysV/ELF, Apple/Mach-O, Mach-O, Win64/PE)

Apple/Mach-O means both, the Apple ABI and runtime, while Mach-O means the
ObjFW runtime on Mach-O.

Added src/forwarding/forwarding-x86_64-macho.S version [98b74480e6]. 















































































































































































































































































































































































































































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/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#include "platform.h"

.globl _of_forward
.globl _of_forward_stret

.section __TEXT, __text, regular, pure_instructions
_of_forward:
	pushq	%rbp
	movq	%rsp, %rbp

	/* Save all arguments */
	subq	$0xC0, %rsp	/* 16-byte alignment */
	movq	%rax, -0x8(%rbp)
	movq	%rdi, -0x10(%rbp)
	movq	%rsi, -0x18(%rbp)
	movq	%rdx, -0x20(%rbp)
	movq	%rcx, -0x28(%rbp)
	movq	%r8, -0x30(%rbp)
	movq	%r9, -0x38(%rbp)
	movdqa	%xmm0, -0x50(%rbp)
	movdqa	%xmm1, -0x60(%rbp)
	movdqa	%xmm2, -0x70(%rbp)
	movdqa	%xmm3, -0x80(%rbp)
	movdqa	%xmm4, -0x90(%rbp)
	movdqa	%xmm5, -0xA0(%rbp)
	movdqa	%xmm6, -0xB0(%rbp)
	movdqa	%xmm7, -0xC0(%rbp)

	call	_object_getClass

	movq	%rax, %rdi
	leaq	sel_forwardingTargetForSelector_(%rip), %rsi
	call	_class_respondsToSelector

	testq	%rax, %rax
	jz	0f

	movq	-0x10(%rbp), %rdi
	leaq	sel_forwardingTargetForSelector_(%rip), %rsi
	call	_objc_msg_lookup

	movq	-0x10(%rbp), %rdi
	leaq	sel_forwardingTargetForSelector_(%rip), %rsi
	movq	-0x18(%rbp), %rdx
	call	*%rax

	testq	%rax, %rax
	jz	0f
	cmpq	-0x10(%rbp), %rax
	je	0f

	movq	%rax, -0x10(%rbp)

	movq	%rax, %rdi
	movq	-0x18(%rbp), %rsi
	call	_objc_msg_lookup
	movq	%rax, %r11

	/* Restore all arguments */
	movdqa	-0xC0(%rbp), %xmm7
	movdqa	-0xB0(%rbp), %xmm6
	movdqa	-0xA0(%rbp), %xmm5
	movdqa	-0x90(%rbp), %xmm4
	movdqa	-0x80(%rbp), %xmm3
	movdqa	-0x70(%rbp), %xmm2
	movdqa	-0x60(%rbp), %xmm1
	movdqa	-0x50(%rbp), %xmm0
	movq	-0x38(%rbp), %r9
	movq	-0x30(%rbp), %r8
	movq	-0x28(%rbp), %rcx
	movq	-0x20(%rbp), %rdx
	movq	-0x18(%rbp), %rsi
	movq	-0x10(%rbp), %rdi
	movq	-0x8(%rbp), %rax

	movq	%rbp, %rsp
	popq	%rbp

	jmpq     *%r11

0:
	movq	-0x10(%rbp), %rdi
	movq	-0x18(%rbp), %rsi

	movq	%rbp, %rsp
	popq	%rbp

	jmp	_of_method_not_found

_of_forward_stret:
	pushq	%rbp
	movq	%rsp, %rbp

	/* Save all arguments */
	subq	$0xC0, %rsp	/* 16-byte alignment */
	movq	%rax, -0x8(%rbp)
	movq	%rdi, -0x10(%rbp)
	movq	%rsi, -0x18(%rbp)
	movq	%rdx, -0x20(%rbp)
	movq	%rcx, -0x28(%rbp)
	movq	%r8, -0x30(%rbp)
	movq	%r9, -0x38(%rbp)
	movdqa	%xmm0, -0x50(%rbp)
	movdqa	%xmm1, -0x60(%rbp)
	movdqa	%xmm2, -0x70(%rbp)
	movdqa	%xmm3, -0x80(%rbp)
	movdqa	%xmm4, -0x90(%rbp)
	movdqa	%xmm5, -0xA0(%rbp)
	movdqa	%xmm6, -0xB0(%rbp)
	movdqa	%xmm7, -0xC0(%rbp)

	movq	%rsi, %rdi
	call	_object_getClass

	movq	%rax, %rdi
	leaq	sel_forwardingTargetForSelector_(%rip), %rsi
	call	_class_respondsToSelector

	testq	%rax, %rax
	jz	0f

	movq	-0x18(%rbp), %rdi
	leaq	sel_forwardingTargetForSelector_(%rip), %rsi
	call	_objc_msg_lookup

	movq	-0x18(%rbp), %rdi
	leaq	sel_forwardingTargetForSelector_(%rip), %rsi
	movq	-0x20(%rbp), %rdx
	call	*%rax

	testq	%rax, %rax
	jz	0f
	cmpq	-0x18(%rbp), %rax
	je	0f

	movq	%rax, -0x18(%rbp)

	movq	%rax, %rdi
	movq	-0x20(%rbp), %rsi
	call	_objc_msg_lookup_stret
	movq	%rax, %r11

	/* Restore all arguments */
	movdqa	-0xC0(%rbp), %xmm7
	movdqa	-0xB0(%rbp), %xmm6
	movdqa	-0xA0(%rbp), %xmm5
	movdqa	-0x90(%rbp), %xmm4
	movdqa	-0x80(%rbp), %xmm3
	movdqa	-0x70(%rbp), %xmm2
	movdqa	-0x60(%rbp), %xmm1
	movdqa	-0x50(%rbp), %xmm0
	movq	-0x38(%rbp), %r9
	movq	-0x30(%rbp), %r8
	movq	-0x28(%rbp), %rcx
	movq	-0x20(%rbp), %rdx
	movq	-0x18(%rbp), %rsi
	movq	-0x10(%rbp), %rdi
	movq	-0x8(%rbp), %rax

	movq	%rbp, %rsp
	popq	%rbp

	jmpq     *%r11

0:
	movq	-0x10(%rbp), %rdi
	movq	-0x18(%rbp), %rsi
	movq	-0x20(%rbp), %rdx

	movq	%rbp, %rsp
	popq	%rbp

	jmp	_of_method_not_found_stret

init:
	leaq	module(%rip), %rdi
	jmp	___objc_exec_class

.section __DATA, __mod_init_func, mod_init_funcs
	.quad init

.section __TEXT, __cstring, cstring_literals
str_forwardingTargetForSelector_:
	.asciz "forwardingTargetForSelector:"

.section __DATA, __data
sel_forwardingTargetForSelector_:
	.quad str_forwardingTargetForSelector_, 0
	.quad 0, 0
symtab:
	.quad 0, sel_forwardingTargetForSelector_
	.short 0, 0
	.long 0
	.quad 0
module:
	.quad 8, 32, 0, symtab

Modified src/forwarding/forwarding.S from [c140baeab8] to [18556e4e47].

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#  elif defined(OF_ARM)
#   include "forwarding-arm-elf.S"
#  elif defined(OF_POWERPC)
#   include "forwarding-ppc-elf.S"
#  elif defined(OF_MIPS)
#   include "forwarding-mips-elf.S"
#  endif




# elif defined(OF_WINDOWS)
#  if defined(OF_X86_64)
#   include "forwarding-x86_64-win64.S"
#  elif defined(OF_X86)
#   include "forwarding-x86-win32.S"
#  endif
# endif
#endif








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#  elif defined(OF_ARM)
#   include "forwarding-arm-elf.S"
#  elif defined(OF_POWERPC)
#   include "forwarding-ppc-elf.S"
#  elif defined(OF_MIPS)
#   include "forwarding-mips-elf.S"
#  endif
# elif defined(OF_MACH_O)
#  if defined(OF_X86_64)
#   include "forwarding-x86_64-macho.S"
#  endif
# elif defined(OF_WINDOWS)
#  if defined(OF_X86_64)
#   include "forwarding-x86_64-win64.S"
#  elif defined(OF_X86)
#   include "forwarding-x86-win32.S"
#  endif
# endif
#endif

Modified src/macros.h from [e0ab1242a0] to [a0cafa1d2d].

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#  define OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR_STRET
# endif
#else
# if defined(OF_ELF)
#  if defined(OF_X86_64) || defined(OF_X86) || \
    defined(OF_ARM64) || defined(OF_ARM) || defined(OF_POWERPC) || \
    defined(OF_MIPS)







#   define OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR
#   if __OBJFW_RUNTIME_ABI__ >= 800
#    define OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR_STRET
#   endif
#  endif
# elif defined(OF_WINDOWS)
#  if defined(OF_X86_64) || defined(OF_X86)








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#  define OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR_STRET
# endif
#else
# if defined(OF_ELF)
#  if defined(OF_X86_64) || defined(OF_X86) || \
    defined(OF_ARM64) || defined(OF_ARM) || defined(OF_POWERPC) || \
    defined(OF_MIPS)
#   define OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR
#   if __OBJFW_RUNTIME_ABI__ >= 800
#    define OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR_STRET
#   endif
#  endif
# elif defined(OF_MACH_O)
#  if defined(OF_X86_64)
#   define OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR
#   if __OBJFW_RUNTIME_ABI__ >= 800
#    define OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR_STRET
#   endif
#  endif
# elif defined(OF_WINDOWS)
#  if defined(OF_X86_64) || defined(OF_X86)
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Fossil 2.23 [47362306a7] 2023-11-01 18:56:47
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