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1439158120
Like bionic, musl also doesn't provide vsyscall helper in %gs:0x10, and as int $0x80 is as fast as calling %gs:0x10, just use int $0x80 always. Because we're no longer using vsyscall in VDSO, get rid of VDSO code for linux/386 too. Fixes #14476. Change-Id: I00ec8652060700e0a3c9b524bfe3c16a810263f6 Reviewed-on: https://go-review.googlesource.com/19833 Run-TryBot: Minux Ma <minux@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
76 lines
1.6 KiB
ArmAsm
76 lines
1.6 KiB
ArmAsm
// 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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#include "textflag.h"
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TEXT _rt0_386_linux(SB),NOSPLIT,$8
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MOVL 8(SP), AX
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LEAL 12(SP), BX
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MOVL AX, 0(SP)
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MOVL BX, 4(SP)
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CALL main(SB)
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INT $3
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// When building with -buildmode=c-shared, this symbol is called when the shared
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// library is loaded.
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TEXT _rt0_386_linux_lib(SB),NOSPLIT,$0
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PUSHL BP
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MOVL SP, BP
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PUSHL BX
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PUSHL SI
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PUSHL DI
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MOVL 8(BP), AX
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MOVL AX, _rt0_386_linux_lib_argc<>(SB)
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MOVL 12(BP), AX
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MOVL AX, _rt0_386_linux_lib_argv<>(SB)
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// Synchronous initialization.
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MOVL $runtime·libpreinit(SB), AX
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CALL AX
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SUBL $8, SP
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// Create a new thread to do the runtime initialization.
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MOVL _cgo_sys_thread_create(SB), AX
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TESTL AX, AX
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JZ nocgo
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MOVL $_rt0_386_linux_lib_go(SB), BX
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MOVL BX, 0(SP)
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MOVL $0, 4(SP)
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CALL AX
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JMP restore
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nocgo:
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MOVL $0x800000, 0(SP) // stacksize = 8192KB
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MOVL $_rt0_386_linux_lib_go(SB), AX
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MOVL AX, 4(SP) // fn
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MOVL $runtime·newosproc0(SB), AX
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CALL AX
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restore:
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ADDL $8, SP
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POPL DI
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POPL SI
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POPL BX
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POPL BP
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RET
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TEXT _rt0_386_linux_lib_go(SB),NOSPLIT,$12
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MOVL _rt0_386_linux_lib_argc<>(SB), AX
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MOVL AX, 0(SP)
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MOVL _rt0_386_linux_lib_argv<>(SB), AX
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MOVL AX, 4(SP)
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MOVL $runtime·rt0_go(SB), AX
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CALL AX
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RET
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DATA _rt0_386_linux_lib_argc<>(SB)/4, $0
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GLOBL _rt0_386_linux_lib_argc<>(SB),NOPTR, $4
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DATA _rt0_386_linux_lib_argv<>(SB)/4, $0
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GLOBL _rt0_386_linux_lib_argv<>(SB),NOPTR, $4
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TEXT main(SB),NOSPLIT,$0
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JMP runtime·rt0_go(SB)
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