mirror of
https://github.com/golang/go
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38 lines
750 B
ArmAsm
38 lines
750 B
ArmAsm
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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/*
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* Apple still insists on underscore prefixes for C function names.
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*/
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#ifdef __APPLE__
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#define EXT(s) _##s
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#else
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#define EXT(s) s
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#endif
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/*
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* void crosscall_386(void (*fn)(void))
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*
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* Calling into the 8c tool chain, where all registers are caller save.
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* Called from standard x86 ABI, where %ebp, %ebx, %esi,
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* and %edi are callee-save, so they must be saved explicitly.
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*/
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.globl EXT(crosscall_386)
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EXT(crosscall_386):
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pushl %ebp
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movl %esp, %ebp
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pushl %ebx
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pushl %esi
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pushl %edi
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movl 8(%ebp), %eax /* fn */
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call *%eax
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popl %edi
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popl %esi
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popl %ebx
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popl %ebp
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ret
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