Differences From Artifact [d0b7459651]:
- File src/runtime/lookup-asm/lookup-asm-x86-elf.S — part of check-in [374e1a1bfa] at 2021-01-02 22:04:26 on branch trunk — Update copyright (user: js, size: 2318) [annotate] [blame] [check-ins using] [more...]
To Artifact [2020d245a7]:
- File
src/runtime/lookup-asm/lookup-asm-x86-elf.S
— part of check-in
[5bf7a7f7ba]
at
2021-02-08 02:16:35
on branch trunk
— Revert lookup-asm-x86-elf.S back to AT&T syntax
This is for consistency with the Mach-O version. (user: js, size: 2298) [annotate] [blame] [check-ins using]
︙ | ︙ | |||
13 14 15 16 17 18 19 | * file. */ #include "config.h" #include "platform.h" | < < | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 | * 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: movl 4(%esp), %edx testl %edx, %edx jz ret_nil btl $0, %edx jc .Ltagged_pointer_\name movl (%edx), %edx movl 32(%edx), %edx .Lmain_\name: movl 8(%esp), %eax #ifdef OF_SELUID24 movzbl 2(%eax), %ecx movl (%edx,%ecx,4), %edx #endif movzbl 1(%eax), %ecx movl (%edx,%ecx,4), %edx movzbl (%eax), %ecx movl (%edx,%ecx,4), %eax testl %eax, %eax jz 0f ret 0: call get_eip addl $_GLOBAL_OFFSET_TABLE_, %eax lea \not_found@GOTOFF(%eax), %eax jmp *%eax .Ltagged_pointer_\name: call get_eip addl $_GLOBAL_OFFSET_TABLE_, %eax leal objc_tagged_pointer_secret@GOTOFF(%eax), %ecx xorl (%ecx), %edx andb $0xE, %dl movzbl %dl, %edx leal objc_tagged_pointer_classes@GOTOFF(%eax), %eax movl (%eax,%edx,2), %edx movl 32(%edx), %edx jmp .Lmain_\name .type \name, %function .size \name, .-\name .endm .macro generate_lookup_super name lookup \name: movl 4(%esp), %edx movl (%edx), %eax testl %eax, %eax jz ret_nil movl %eax, 4(%esp) mov 4(%edx), %edx mov 32(%edx), %edx jmp .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 addl $_GLOBAL_OFFSET_TABLE_, %eax leal nil_method@GOTOFF(%eax), %eax ret nil_method: xorl %eax, %eax ret get_eip: movl (%esp), %eax ret #ifdef OF_LINUX .section .note.GNU-stack, "", %progbits #endif |