Differences From Artifact [2f9e1b8cac]:
- File src/runtime/lookup-asm/lookup-asm-amd64-elf.S — part of check-in [da242983b2] at 2023-08-29 22:48:02 on branch trunk — Add .note.GNU-stack on Haiku (user: js, size: 2065) [annotate] [blame] [check-ins using] [more...]
To Artifact [23159b41e1]:
- File
src/runtime/lookup-asm/lookup-asm-amd64-elf.S
— part of check-in
[ec513d0c55]
at
2023-10-24 23:56:37
on branch trunk
— Move AMD64/ELF assembly back to Intel syntax
This used to be in Intel syntax, but was moved back to AT&T syntax for
consistency with the Mach-O version, where the assembler doesn't support
the Intel syntax properly. However, it makes more sense to use Intel
syntax where possible. (user: js, size: 2080) [annotate] [blame] [check-ins using]
︙ | ︙ | |||
13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | * file. */ #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: | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 | * file. */ #include "config.h" #include "platform.h" .intel_syntax noprefix .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: test rdi, rdi jz short returnNilMethod test dil, 1 jnz short .LtaggedPointer_\name mov r8, [rdi] mov r8, [r8 + 64] .Lmain_\name: mov rax, [rsi] movzx ecx, ah movzx edx, al #ifdef OF_SELUID24 shr eax, 16 mov r8, [r8 + 8 * rax] #endif mov r8, [r8 + 8 * rcx] mov rax, [r8 + 8 * rdx] test rax, rax jz short \notFound@PLT ret .LtaggedPointer_\name: mov rax, [rip + objc_taggedPointerSecret@GOTPCREL] xor rdi, [rax] and dil, 0xE movzx r8d, dil mov rax, [rip + objc_taggedPointerClasses@GOTPCREL] mov r8, [rax + 4 * r8] mov r8, [r8 + 64] jmp short .Lmain_\name .type \name, %function .size \name, .-\name .endm .macro GENERATE_LOOKUP_SUPER name lookup \name: mov r8, rdi mov rdi, [rdi] test rdi, rdi jz short returnNilMethod mov r8, [r8 + 8] mov r8, [r8 + 64] jmp short .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 returnNilMethod: lea rax, [rip + nilMethod] ret nilMethod: xor rax, rax ret #if defined(OF_LINUX) || defined(OF_HAIKU) || defined(OF_HURD) .section .note.GNU-stack, "", %progbits #endif |