Overview
Comment: | forwarding: Don't grow the stack twice on ARM64 |
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Downloads: | Tarball | ZIP archive | SQL archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA3-256: |
8e95cb1c77624641a36b737f3b660a7c |
User & Date: | js on 2024-04-17 20:45:01 |
Other Links: | manifest | tags |
Context
2024-04-17
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20:50 | Add missing endbr / bti check-in: 171615d20a user: js tags: trunk | |
20:45 | forwarding: Don't grow the stack twice on ARM64 check-in: 8e95cb1c77 user: js tags: trunk | |
2024-04-16
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23:50 | Don't use readdir_r check-in: c615b62ed8 user: js tags: trunk | |
Changes
Modified src/forwarding/apple-forwarding-arm64.S from [2d0bee101c] to [78c7e0a619].
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38 39 40 41 42 43 44 | .align 2 _OFForward: _OFForward_stret: #ifdef HAVE_BTI bti c #endif | | < | | | | | | | | | | | | | | | | | | | | | | | | | 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 | .align 2 _OFForward: _OFForward_stret: #ifdef HAVE_BTI bti c #endif stp fp, lr, [sp, #-224]! mov fp, sp /* Save all arguments, x8 and x19 */ stp x0, x1, [sp, #16] stp x2, x3, [sp, #32] stp x4, x5, [sp, #48] stp x6, x7, [sp, #64] stp x8, x19, [sp, #80] /* Save all foating point arguments */ stp q0, q1, [sp, #96] stp q2, q3, [sp, #128] stp q4, q5, [sp, #160] stp q6, q7, [sp, #192] bl _object_getClass adrp x19, Lsel_forwardingTargetForSelector_@PAGE add x19, x19, Lsel_forwardingTargetForSelector_@PAGEOFF ldr x19, [x19] mov x1, x19 bl _class_respondsToSelector cbz x0, 0f ldp x0, x2, [sp, #16] mov x1, x19 bl _objc_msgSend cbz x0, 0f ldr x1, [sp, #16] cmp x0, x1 b.eq 0f /* Restore all arguments, x8 and x19, but not x0 */ ldr x1, [sp, #24] ldp x2, x3, [sp, #32] ldp x4, x5, [sp, #48] ldp x6, x7, [sp, #64] ldp x8, x19, [sp, #80] /* Restore all foating point arguments */ ldp q0, q1, [sp, #96] ldp q2, q3, [sp, #128] ldp q4, q5, [sp, #160] ldp q6, q7, [sp, #192] mov sp, fp ldp fp, lr, [sp], #224 b _objc_msgSend 0: ldp x0, x1, [sp, #16] ldr x19, [sp, #88] mov sp, fp ldp fp, lr, [sp], #224 b _OFMethodNotFound |
Modified src/forwarding/forwarding-arm64-elf.S from [8f1d6be95f] to [33f2532f58].
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27 28 29 30 31 32 33 | .section .text OFForward: OFForward_stret: #ifdef HAVE_BTI bti c #endif | | < | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 | .section .text OFForward: OFForward_stret: #ifdef HAVE_BTI bti c #endif stp fp, lr, [sp, #-224]! mov fp, sp /* Save all arguments, x8 and x19 */ stp x0, x1, [sp, #16] stp x2, x3, [sp, #32] stp x4, x5, [sp, #48] stp x6, x7, [sp, #64] stp x8, x19, [sp, #80] /* Save all foating point arguments */ stp q0, q1, [sp, #96] stp q2, q3, [sp, #128] stp q4, q5, [sp, #160] stp q6, q7, [sp, #192] bl object_getClass adrp x19, .Lsel_forwardingTargetForSelector_ add x19, x19, :lo12:.Lsel_forwardingTargetForSelector_ mov x1, x19 bl class_respondsToSelector cbz x0, 0f ldr x0, [sp, #16] mov x1, x19 bl objc_msg_lookup mov x1, x19 mov x19, x0 ldp x0, x2, [sp, #16] blr x19 cbz x0, 0f ldr x1, [sp, #16] cmp x0, x1 b.eq 0f mov x19, x0 ldr x1, [sp, #24] bl objc_msg_lookup mov x16, x0 mov x0, x19 /* Restore all arguments, x8 and x19, but not x0 */ ldr x1, [sp, #24] ldp x2, x3, [sp, #32] ldp x4, x5, [sp, #48] ldp x6, x7, [sp, #64] ldp x8, x19, [sp, #80] /* Restore all foating point arguments */ ldp q0, q1, [sp, #96] ldp q2, q3, [sp, #128] ldp q4, q5, [sp, #160] ldp q6, q7, [sp, #192] mov sp, fp ldp fp, lr, [sp], #224 br x16 0: ldp x0, x1, [sp, #16] ldr x19, [sp, #88] mov sp, fp ldp fp, lr, [sp], #224 b OFMethodNotFound .type OFForward, %function .size OFForward, .-OFForward .type OFForward_stret, %function .size OFForward_stret, .-OFForward_stret |
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