ObjFW  Check-in [6099526435]

Overview
Comment:LoongArch 64/ELF assembly lookup implementation
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SHA3-256: 60995264351961586e22755bd5e3a2c3f6a20e7bcdc63ffe59952ec990ec5f1f
User & Date: js on 2024-07-27 16:16:42
Original Comment: Add LoongArch64/ELF assembly lookup implementation
Other Links: manifest | tags
References
2024-07-27
16:18 • Fixed ticket [296aa2d0bb]: Write assembly for dispatch on LoongArch 64 plus 5 other changes artifact: 1d2683c7bd user: js
Context
2024-07-27
23:33
forwardingTargetForSelector: for LoongArch 64/ELF check-in: 573f1ca9aa user: js tags: trunk
16:16
LoongArch 64/ELF assembly lookup implementation check-in: 6099526435 user: js tags: trunk
2024-07-21
16:41
platform.h: Add LoongArch 64 check-in: 75e7375c66 user: js tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Added src/runtime/lookup-asm/lookup-asm-loongarch64-elf.S version [cb61c5a810]. 





























































































































































































































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/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version 3.0 only,
 * as published by the Free Software Foundation.
 *
 * This program 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
 * version 3.0 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3.0 along with this program. If not, see
 * <https://www.gnu.org/licenses/>.
 */

#include "config.h"

#include "platform.h"

.globl objc_msg_lookup
.globl objc_msg_lookup_stret
.globl objc_msg_lookup_super
.globl objc_msg_lookup_super_stret

.section .text
.macro GENERATE_LOOKUP name notFound
\name:
	beqz	$a0, .LreturnNilMethod

	andi	$t0, $a0, 1
	bnez	$t0, .LtaggedPointer_\name

	ld.d	$t0, $a0, 0
	ld.d	$t0, $t0, 64

.Lmain_\name:
#ifdef OF_SELUID24
	ld.bu	$t1, $a1, 2
	slli.d	$t1, $t1, 3
#endif
	ld.bu	$t2, $a1, 1
	slli.d	$t2, $t2, 3
	ld.bu	$t3, $a1, 0
	slli.d	$t3, $t3, 3

#ifdef OF_SELUID24
	ldx.d	$t0, $t0, $t1
#endif
	ldx.d	$t0, $t0, $t2
	ldx.d	$t0, $t0, $t3

	beqz	$t0, 0f

	move	$a0, $t0
	ret

0:
	b	%plt(\notFound)

.LtaggedPointer_\name:
	la.global $t1, objc_taggedPointerSecret
	ldptr.d	$t1, $t1, 0
	xor	$t1, $a0, $t1
	andi	$t1, $t1, 0xE
	slli.d	$t1, $t1, 2

	la.global $t0, objc_taggedPointerClasses
	ldx.d	$t0, $t0, $t1
	ld.d	$t0, $t0, 64

	b	.Lmain_\name
.type \name, %function
.size \name, .-\name
.endm

.macro GENERATE_LOOKUP_SUPER name lookup
\name:
	move	$t0, $a0
	ld.d	$a0, $a0, 0
	beqz	$a0, .LreturnNilMethod

	ld.d	$t0, $t0, 8
	ld.d	$t0, $t0, 64

	b	.Lmain_\lookup
.type \name, %function
.size \name, .-\name
.endm

GENERATE_LOOKUP objc_msg_lookup objc_methodNotFound
GENERATE_LOOKUP objc_msg_lookup_stret objc_methodNotFound_stret
GENERATE_LOOKUP_SUPER objc_msg_lookup_super objc_msg_lookup
GENERATE_LOOKUP_SUPER objc_msg_lookup_super_stret objc_msg_lookup_stret

.LreturnNilMethod:
	la.local $a0, .LnilMethod
	ret

.LnilMethod:
	li.d	$a0, 0
	ret

#if defined(OF_LINUX) || defined(OF_HAIKU) || defined(OF_HURD)
.section .note.GNU-stack, "", %progbits
#endif

Modified src/runtime/lookup-asm/lookup-asm.S from [05db03bf88] to [afae4eb55f].

︙︙
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#  include "lookup-asm-mips-elf.S"
# elif defined(OF_SPARC64)
#  include "lookup-asm-sparc64-elf.S"
# elif defined(OF_SPARC)
#  include "lookup-asm-sparc-elf.S"
# elif defined(OF_RISCV64)
#  include "lookup-asm-riscv64-elf.S"


# endif
#elif defined(OF_MACH_O)
# if defined(OF_AMD64)
#  include "lookup-asm-amd64-macho.S"
# endif
#elif defined(OF_WINDOWS)
# if defined(OF_AMD64)








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#  include "lookup-asm-mips-elf.S"
# elif defined(OF_SPARC64)
#  include "lookup-asm-sparc64-elf.S"
# elif defined(OF_SPARC)
#  include "lookup-asm-sparc-elf.S"
# elif defined(OF_RISCV64)
#  include "lookup-asm-riscv64-elf.S"
# elif defined(OF_LOONGARCH64)
#  include "lookup-asm-loongarch64-elf.S"
# endif
#elif defined(OF_MACH_O)
# if defined(OF_AMD64)
#  include "lookup-asm-amd64-macho.S"
# endif
#elif defined(OF_WINDOWS)
# if defined(OF_AMD64)
︙︙

Modified src/runtime/private.h from [318b5fdb1e] to [cceb11309c].

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#if defined(OF_ELF)
# if defined(OF_AMD64) || defined(OF_X86) || \
    defined(OF_POWERPC64) || defined(OF_POWERPC) || \
    defined(OF_ARM64) || defined(OF_ARM) || \
    defined(OF_MIPS64_N64) || defined(OF_MIPS) || \
    defined(OF_SPARC64) || defined(OF_SPARC) || \
    defined(OF_RISCV64)
#  define OF_ASM_LOOKUP
# endif
#elif defined(OF_MACH_O)
# if defined(OF_AMD64)
#  define OF_ASM_LOOKUP
# endif
#elif defined(OF_WINDOWS)








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#if defined(OF_ELF)
# if defined(OF_AMD64) || defined(OF_X86) || \
    defined(OF_POWERPC64) || defined(OF_POWERPC) || \
    defined(OF_ARM64) || defined(OF_ARM) || \
    defined(OF_MIPS64_N64) || defined(OF_MIPS) || \
    defined(OF_SPARC64) || defined(OF_SPARC) || \
    defined(OF_RISCV64) || defined(OF_LOONGARCH64)
#  define OF_ASM_LOOKUP
# endif
#elif defined(OF_MACH_O)
# if defined(OF_AMD64)
#  define OF_ASM_LOOKUP
# endif
#elif defined(OF_WINDOWS)
︙︙