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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
.file "gcc_386.S"
/*
* Windows still insists on underscore prefixes for C function names.
*/
#if defined(_WIN32)
#define EXT(s) _##s
#else
#define EXT(s) s
#endif
/*
* void crosscall1(void (*fn)(void), void (*setg_gcc)(void*), void *g)
*
* Calling into the gc tool chain, where all registers are caller save.
* Called from standard x86 ABI, where %ebp, %ebx, %esi,
* and %edi are callee-save, so they must be saved explicitly.
*/
.globl EXT(crosscall1)
EXT(crosscall1):
pushl %ebp
movl %esp, %ebp
pushl %ebx
pushl %esi
pushl %edi
movl 16(%ebp), %eax /* g */
pushl %eax
movl 12(%ebp), %eax /* setg_gcc */
call *%eax
popl %eax
movl 8(%ebp), %eax /* fn */
call *%eax
popl %edi
popl %esi
popl %ebx
popl %ebp
ret
#ifdef __ELF__
.section .note.GNU-stack,"",@progbits
#endif
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