Differences From Artifact [6c4a8f6d7c]:
- File src/runtime/lookup-asm/lookup-asm-x86-elf.S — part of check-in [c7f0229795] at 2020-01-02 01:51:34 on branch trunk — Update copyright (user: js, size: 2004) [annotate] [blame] [check-ins using] [more...]
To Artifact [65ed1dc5ee]:
- File
src/runtime/lookup-asm/lookup-asm-x86-elf.S
— part of check-in
[2073a345ba]
at
2020-06-29 23:14:11
on branch trunk
— Convert all x86/ELF ASM files to Intel syntax
GAS has decent support for Intel syntax these days, so there is little
reason to stick with AT&T syntax. (user: js, size: 2025) [annotate] [blame] [check-ins using] [more...]
︙ | ︙ | |||
15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | * 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 not_found \name: | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 99 100 101 102 | * 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 not_found \name: mov edx, [esp+4] test edx, edx jz short ret_nil mov edx, [edx] mov edx, [edx+32] .Lmain_\name: mov eax, [esp+8] #ifdef OF_SELUID24 movzx ecx, byte ptr [eax+2] mov edx, [edx+ecx*4] #endif movzx ecx, byte ptr [eax+1] mov edx, [edx+ecx*4] movzx ecx, byte ptr [eax] mov eax, [edx+ecx*4] test eax, eax jz short 0f ret 0: call get_eip 1: add eax, offset _GLOBAL_OFFSET_TABLE_ mov eax, [eax+\not_found@GOT] jmp eax .type \name, %function .size \name, .-\name .endm .macro generate_lookup_super name lookup \name: mov edx, [esp+4] mov eax, [edx] test eax, eax jz short ret_nil mov [esp+4], eax mov edx, [edx+4] mov edx, [edx+32] jmp short .Lmain_\lookup .type \name, %function .size \name, .-\name .endm generate_lookup objc_msg_lookup objc_method_not_found generate_lookup objc_msg_lookup_stret objc_method_not_found_stret generate_lookup_super objc_msg_lookup_super objc_msg_lookup generate_lookup_super objc_msg_lookup_super_stret objc_msg_lookup_stret ret_nil: call get_eip 0: add eax, nil_method-0b ret nil_method: xor eax, eax ret get_eip: mov eax, [esp] ret #ifdef OF_LINUX .section .note.GNU-stack, "", %progbits #endif |