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go/src/runtime/rt0_nacl_386.s
Ian Lance Taylor 378de1ae43 runtime: unify 386 entry point code
Unify the 386 entry point code as much as possible.

The main function could not be unified because on Windows 386 it is
called _main. Putting main in asm_386.s caused multiple definition
errors when using the external linker.

Add the _lib entry point to various operating systems.  A future CL
will enable c-archive/c-shared mode for those targets.

Fix _rt0_386_windows_lib_go--it was passing arguments as though it
were amd64.

Change-Id: Ic73f1c95cdbcbea87f633f4a29bbc218a5db4f58
Reviewed-on: https://go-review.googlesource.com/70530
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2017-10-17 04:03:16 +00:00

25 lines
652 B
ArmAsm

// Copyright 2013 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.
#include "textflag.h"
// NaCl entry has:
// 0(FP) - arg block == SP+8
// 4(FP) - cleanup function pointer, always 0
// 8(FP) - envc
// 12(FP) - argc
// 16(FP) - argv, then 0, then envv, then 0, then auxv
TEXT _rt0_386_nacl(SB),NOSPLIT,$8
MOVL argc+12(FP), AX
LEAL argv+16(FP), BX
MOVL AX, 0(SP)
MOVL BX, 4(SP)
JMP runtime·rt0_go(SB)
TEXT main(SB),NOSPLIT,$0
// Remove the return address from the stack.
// rt0_go doesn't expect it to be there.
ADDL $4, SP
JMP runtime·rt0_go(SB)