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Diffstat (limited to 'src/pkg/runtime/cgo/386.S')
| -rwxr-xr-x | src/pkg/runtime/cgo/386.S | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/src/pkg/runtime/cgo/386.S b/src/pkg/runtime/cgo/386.S new file mode 100755 index 000000000..9abab7ebd --- /dev/null +++ b/src/pkg/runtime/cgo/386.S @@ -0,0 +1,67 @@ +// 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. + +/* + * Apple still insists on underscore prefixes for C function names. + */ +#if defined(__APPLE__) || defined(_WIN32) +#define EXT(s) _##s +#else +#define EXT(s) s +#endif + +/* + * void crosscall_386(void (*fn)(void)) + * + * Calling into the 8c 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(crosscall_386) +EXT(crosscall_386): + pushl %ebp + movl %esp, %ebp + pushl %ebx + pushl %esi + pushl %edi + + movl 8(%ebp), %eax /* fn */ + call *%eax + + popl %edi + popl %esi + popl %ebx + popl %ebp + ret + +/* + * void crosscall2(void (*fn)(void*, int32), void*, int32) + * + * Save registers and call fn with two arguments. + */ +.globl EXT(crosscall2) +EXT(crosscall2): + pushl %ebp + movl %esp, %ebp + pushl %ebx + pushl %esi + pushl %edi + + pushl 16(%ebp) + pushl 12(%ebp) + mov 8(%ebp), %eax + call *%eax + addl $8,%esp + + popl %edi + popl %esi + popl %ebx + popl %ebp + ret + +.globl EXT(__stack_chk_fail_local) +EXT(__stack_chk_fail_local): +1: + jmp 1b + |