Differences From Artifact [582b619bd5]:
- File src/runtime/lookup-asm/lookup-asm-x86-elf.S — part of check-in [b194a9a226] at 2020-06-30 00:37:18 on branch trunk — Minor cleanup of x86/ELF ASM (user: js, size: 2071) [annotate] [blame] [check-ins using] [more...]
To Artifact [6468f2e74c]:
- File
src/runtime/lookup-asm/lookup-asm-x86-elf.S
— part of check-in
[943cf97843]
at
2020-07-04 00:24:54
on branch tagged-pointers
— Only use 4 bits to classify tagged pointers
This leaves 28/60 bits for the value. (user: js, size: 2352) [annotate] [blame] [check-ins using]
︙ | ︙ | |||
29 30 31 32 33 34 35 36 37 38 39 40 41 42 | .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 | > > > | 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | .section .text .macro generate_lookup name not_found \name: mov edx, [esp+4] test edx, edx jz short ret_nil bt edx, 0 jc short .Ltagged_pointer_\name mov edx, [edx] mov edx, [edx+32] .Lmain_\name: mov eax, [esp+8] #ifdef OF_SELUID24 |
︙ | ︙ | |||
54 55 56 57 58 59 60 61 62 63 64 65 66 67 | ret 0: call get_eip add eax, offset _GLOBAL_OFFSET_TABLE_ lea eax, [eax+\not_found@GOTOFF] jmp eax .type \name, %function .size \name, .-\name .endm .macro generate_lookup_super name lookup \name: mov edx, [esp+4] | > > > > > > > > > > > > > > | 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 | ret 0: call get_eip add eax, offset _GLOBAL_OFFSET_TABLE_ lea eax, [eax+\not_found@GOTOFF] jmp eax .Ltagged_pointer_\name: and dl, 0xF shr dl, 1 movzx edx, dl call get_eip add eax, offset _GLOBAL_OFFSET_TABLE_ lea eax, [eax+objc_tagged_pointer_classes@GOTOFF] mov edx, [eax+edx*4] mov edx, [edx+32] jmp short .Lmain_\name .type \name, %function .size \name, .-\name .endm .macro generate_lookup_super name lookup \name: mov edx, [esp+4] |
︙ | ︙ |