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https://github.com/golang/go
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6e3a6c4d38
Tested by using -buildmode=c-archive to generate an archive, add it to an Xcode project and calling a Go function from an iOS app. (I'm still investigating proper buildmode tests for all.bash.) Change-Id: I7890df15246df8e90ad27837b8d64ba2cde409fe Reviewed-on: https://go-review.googlesource.com/8719 Reviewed-by: Ian Lance Taylor <iant@golang.org>
60 lines
1.6 KiB
ArmAsm
60 lines
1.6 KiB
ArmAsm
// Copyright 2014 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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#include "textflag.h"
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TEXT _rt0_arm_darwin(SB),7,$-4
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// prepare arguments for main (_rt0_go)
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MOVW (R13), R0 // argc
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MOVW $4(R13), R1 // argv
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MOVW $main(SB), R4
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B (R4)
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// When linking with -buildmode=c-archive or -buildmode=c-shared,
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// this symbol is called from a global initialization function.
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//
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// Note that all currently shipping darwin/arm platforms require
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// cgo and do not support c-shared.
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TEXT _rt0_arm_darwin_lib(SB),NOSPLIT,$12
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MOVW R0, _rt0_arm_darwin_lib_argc<>(SB)
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MOVW R1, _rt0_arm_darwin_lib_argv<>(SB)
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// Create a new thread to do the runtime initialization and return.
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MOVW _cgo_sys_thread_create(SB), R4
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CMP $0, R4
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B.EQ nocgo
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MOVW $_rt0_arm_darwin_lib_go(SB), R0
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MOVW $0, R1
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BL (R4)
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RET
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nocgo:
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MOVW $0x400000, R0
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MOVW $_rt0_arm_darwin_lib_go(SB), R1
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MOVW $0, R2
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MOVW R0, (R13) // stacksize
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MOVW R1, 4(R13) // fn
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MOVW R2, 8(R13) // fnarg
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MOVW $runtime·newosproc0(SB), R4
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BL (R4)
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RET
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TEXT _rt0_arm_darwin_lib_go(SB),NOSPLIT,$0
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MOVW _rt0_arm_darwin_lib_argc<>(SB), R0
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MOVW _rt0_arm_darwin_lib_argv<>(SB), R1
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MOVW R0, (R13)
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MOVW R1, 4(R13)
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MOVW $runtime·rt0_go(SB), R4
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B (R4)
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DATA _rt0_arm_darwin_lib_argc<>(SB)/4, $0
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GLOBL _rt0_arm_darwin_lib_argc<>(SB),NOPTR, $4
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DATA _rt0_arm_darwin_lib_argv<>(SB)/4, $0
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GLOBL _rt0_arm_darwin_lib_argv<>(SB),NOPTR, $4
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TEXT main(SB),NOSPLIT,$-8
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// save argc and argv onto stack
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MOVM.DB.W [R0-R1], (R13)
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MOVW $runtime·rt0_go(SB), R4
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B (R4)
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