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# Note that it doesn't really matter if the assembly below is badly written.
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# We just care enough to see that it obfuscates and keeps the same behavior.
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# TODO: support arm64, at least
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[!amd64] skip 'the assembly is only written for amd64'
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|
garble build
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|
|
exec ./main
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cmp stderr main.stderr
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|
|
! binsubstr main$exe 'test/main' 'privateAdd' 'PublicAdd' 'garble_'
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|
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|
[short] stop # no need to verify this with -short
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|
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|
# Ensure that reversing doesn't error with assembly files.
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|
|
# It should fail, as there is nothing to reverse, but without any parse error.
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|
|
stdin empty-reverse.txt
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! garble reverse .
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|
|
! stderr .
|
|
|
|
|
|
garble -tiny build
|
|
|
exec ./main
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|
|
cmp stderr main.stderr
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|
|
! binsubstr main$exe 'privateAdd' 'PublicAdd'
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|
|
|
|
|
go build
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|
|
exec ./main
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|
|
cmp stderr main.stderr
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|
|
binsubstr main$exe 'privateAdd' 'PublicAdd'
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|
|
-- go.mod --
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|
|
module test/with.many.dots/main
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|
|
|
|
|
go 1.19
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|
|
-- main.go --
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|
|
package main
|
|
|
|
|
|
import (
|
|
|
"test/with.many.dots/main/imported"
|
|
|
)
|
|
|
|
|
|
func privateAdd(x, y int32) int32
|
|
|
|
|
|
// goData is used from both assembly and header files.
|
|
|
var goData = [4]uint64{1, 2, 3, 4}
|
|
|
|
|
|
func modifyGoData()
|
|
|
func modifyGoData2()
|
|
|
|
|
|
func main() {
|
|
|
println(privateAdd(1, 2))
|
|
|
|
|
|
println(goData[0], goData[1])
|
|
|
modifyGoData()
|
|
|
println(goData[0], goData[1])
|
|
|
modifyGoData2()
|
|
|
println(goData[0], goData[1])
|
|
|
|
|
|
println(imported.PublicAdd(3, 4))
|
|
|
}
|
|
|
-- garble_main_amd64.s --
|
|
|
#include "garble_define_amd64.h"
|
|
|
|
|
|
#include "extra/garble_define2_amd64.h"
|
|
|
|
|
|
TEXT ·privateAdd(SB),$0-16
|
|
|
JMP test∕with·many·dots∕main∕imported·PublicAdd(SB)
|
|
|
|
|
|
TEXT ·modifyGoData(SB),$0-16
|
|
|
addGoDataTo($12)
|
|
|
ADDL $34, ·goData+8(SB)
|
|
|
RET
|
|
|
|
|
|
TEXT ·modifyGoData2(SB),$0-16
|
|
|
addGoDataTo2($12)
|
|
|
ADDL $34,·goData+8(SB) // note the lack of a space
|
|
|
RET
|
|
|
|
|
|
-- garble_define_amd64.h --
|
|
|
#define addGoDataTo(arg) \
|
|
|
ADDL arg, ·goData+0(SB)
|
|
|
|
|
|
-- extra/garble_define2_amd64.h --
|
|
|
#define addGoDataTo2(arg) \
|
|
|
ADDL arg, ·goData+0(SB)
|
|
|
|
|
|
-- imported/imported.go --
|
|
|
package imported
|
|
|
|
|
|
func PublicAdd(x, y int32) int32
|
|
|
|
|
|
-- imported/imported_amd64.s --
|
|
|
TEXT ·PublicAdd(SB),$0-16
|
|
|
MOVL x+0(FP), BX
|
|
|
MOVL y+4(FP), BP
|
|
|
ADDL BP, BX
|
|
|
MOVL BX, ret+8(FP)
|
|
|
RET
|
|
|
-- main.stderr --
|
|
|
3
|
|
|
1 2
|
|
|
13 36
|
|
|
25 70
|
|
|
7
|
|
|
-- empty-reverse.txt --
|