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29 lines
1.1 KiB
29 lines
1.1 KiB
/*
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* Copyright 2002-2019 Intel Corporation.
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*
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* This software is provided to you as Sample Source Code as defined in the accompanying
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* End User License Agreement for the Intel(R) Software Development Products ("Agreement")
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* section 1.L.
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*
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* This software and the related documents are provided as is, with no express or implied
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* warranties, other than those that are expressly stated in the License.
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*/
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.text
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.globl BareExitGroup
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BareExitGroup:
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#if defined(TARGET_MAC)
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sub $8, %esp # On function entry stack is aligned to 12%16 (0x...C) since return IP was pushed to stack,
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# moving down to 4%12
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push $0 # first argument: exit code, stack is aligned to 16 bits
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sub $4, %esp # This mimics what call instruction does (push return IP), This is what syscall expect.
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movl $1,%eax # system call number (exit) - exit process
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#elif defined(TARGET_LINUX)
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movl $0,%ebx # first argument: exit code
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movl $252,%eax # system call number (sys_exit_group) - exit process
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#endif
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.globl BareExitTrap
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BareExitTrap:
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int $0x80 # call kernel
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