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dfbf568c9f
This replaces frame size -4/-8 with the NOFRAME flag in mips and mips64 assembly. This was automated with: sed -i -e 's/\(^TEXT.*[A-Z]\),\( *\)\$-[84]/\1|NOFRAME,\2$0/' $(find -name '*_mips*.s') Plus a manual fix to mkduff.go. The go binary is identical on both architectures before and after this change. Change-Id: I0310384d1a584118c41d1cd3a042bb8ea7227efb Reviewed-on: https://go-review.googlesource.com/92044 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
40 lines
1015 B
ArmAsm
40 lines
1015 B
ArmAsm
// Copyright 2015 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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// +build linux
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// +build mips64 mips64le
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#include "textflag.h"
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TEXT _rt0_mips64_linux(SB),NOSPLIT,$0
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JMP _main<>(SB)
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TEXT _rt0_mips64le_linux(SB),NOSPLIT,$0
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JMP _main<>(SB)
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TEXT _main<>(SB),NOSPLIT|NOFRAME,$0
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// In a statically linked binary, the stack contains argc,
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// argv as argc string pointers followed by a NULL, envv as a
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// sequence of string pointers followed by a NULL, and auxv.
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// There is no TLS base pointer.
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#ifdef GOARCH_mips64
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MOVW 4(R29), R4 // argc, big-endian ABI places int32 at offset 4
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#else
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MOVW 0(R29), R4 // argc
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#endif
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ADDV $8, R29, R5 // argv
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JMP main(SB)
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TEXT main(SB),NOSPLIT|NOFRAME,$0
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// in external linking, glibc jumps to main with argc in R4
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// and argv in R5
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// initialize REGSB = PC&0xffffffff00000000
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BGEZAL R0, 1(PC)
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SRLV $32, R31, RSB
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SLLV $32, RSB
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MOVV $runtime·rt0_go(SB), R1
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JMP (R1)
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