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d13988bd5f
This doesn't have a working symbolicator yet, but it does build and it can obtain a basic backtrace. It also doesn't include a working `swift-backtrace` program yet. rdar://101623384
54 lines
1.8 KiB
NASM
54 lines
1.8 KiB
NASM
; ===--- get-cpu-context.asm - Low-level functions to capture registers ---=== ;
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;
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; This source file is part of the Swift.org open source project
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;
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; Copyright (c) 2025 Apple Inc. and the Swift project authors
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; Licensed under Apache License v2.0 with Runtime Library Exception
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;
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; See https://swift.org/LICENSE.txt for license information
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; See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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;
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; ===----------------------------------------------------------------------=== ;
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;
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; Saves the necessary registers to an appropriate Context structure.
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;
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; ===----------------------------------------------------------------------=== ;
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.CODE
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;; On entry, rcx contains the pointer to the x86_64_gprs
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_swift_get_cpu_context PROC PUBLIC
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mov qword ptr [rcx], rax
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mov qword ptr [rcx + 8], rdx
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mov qword ptr [rcx + 16], rcx
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mov qword ptr [rcx + 24], rbx
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mov qword ptr [rcx + 32], rsi
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mov qword ptr [rcx + 40], rdi
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mov qword ptr [rcx + 48], rbp
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lea rdx, [rsp + 8]
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mov qword ptr [rcx + 56], rdx
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mov qword ptr [rcx + 64], r8
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mov qword ptr [rcx + 72], r9
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mov qword ptr [rcx + 80], r10
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mov qword ptr [rcx + 88], r11
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mov qword ptr [rcx + 96], r12
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mov qword ptr [rcx + 104], r13
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mov qword ptr [rcx + 112], r14
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mov qword ptr [rcx + 120], r15
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pushfq
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pop rdx
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mov qword ptr [rcx + 128], rdx
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mov dx, cs
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mov word ptr [rcx + 136], dx
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mov dx, fs
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mov word ptr [rcx + 138], dx
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mov dx, gs
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mov word ptr [rcx + 140], dx
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mov rdx, [rsp]
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mov qword ptr [rcx + 144], rdx
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mov qword ptr [rcx + 152], 1fffffh
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ret
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_swift_get_cpu_context ENDP
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END
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