mirror of
https://github.com/facebookexperimental/reverie.git
synced 2025-01-22 21:04:53 +00:00
20c7020868
Summary: The OSS license linter doesn't like the word "its". Reviewed By: johnhurt Differential Revision: D36856385 fbshipit-source-id: 909037d96de8976f08004497d28b77838f8c6870
108 lines
1.6 KiB
ArmAsm
108 lines
1.6 KiB
ArmAsm
/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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/**
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* clobbered.S: used by reverie *only*
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* to test inject/tail_inject wouldn't clobber any
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* syscall registers.
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* NB: %rcx is clobbered by `syscall`.
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*/
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.text
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.global _start
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.type _start, @function
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_start:
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sub $0x18, %rsp
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mov $9, %eax // mmap
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movq $0, %rdi
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movq $4096, %rsi
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movq $1, %rdx
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movq $0x22, %r10
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movq $-1, %r8
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movq $0, %r9
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syscall
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cmp $0xfffffffffffff000,%rax
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ja panic
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movq %rax, 0x8(%rsp)
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cmpq $0, %rdi
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jne panic
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cmpq $4096, %rsi
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jne panic
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cmpq $1, %rdx
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jne panic
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cmpq $0x22, %r10
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jne panic
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cmpq $-1, %r8
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jne panic
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cmpq $0, %r9
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jne panic
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movq $0x12345678, %rdi
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movq $0x17654321, %rsi
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movq $0x42421234, %rdx
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movq $0x1234abab, %r10
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movq $0x12123434, %r8
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movq $0x78781212, %r9
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mov $39, %eax // getpid
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syscall
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cmpq $0x12345678, %rdi
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jne panic
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cmpq $0x17654321, %rsi
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jne panic
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cmpq $0x42421234, %rdx
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jne panic
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cmpq $0x1234abab, %r10
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jne panic
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cmpq $0x12123434, %r8
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jne panic
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cmpq $0x78781212, %r9
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jne panic
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mov $11, %eax // munmap
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movq 8(%rsp), %rdi
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movq $4096, %rsi
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syscall
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cmp $0xfffffffffffff000,%rax
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ja panic
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cmpq $0x42421234, %rdx
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jne panic
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cmpq $0x1234abab, %r10
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jne panic
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cmpq $0x12123434, %r8
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jne panic
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cmpq $0x78781212, %r9
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jne panic
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add $18, %rsp
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mov $0xe7, %eax // exit_group
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mov $0, %rdi
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syscall
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panic: add $18, %rsp
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mov $1, %rdi
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mov $0xe7, %eax
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syscall
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