cmd/internal/obj/arm64: golang assembler handles arm64 instruction hlt/hvc/smc/brk/clrex incorrectly. #20765
Comments
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CL https://golang.org/cl/46438 mentions this issue. |
Instead of throwing a big test in a pending CL, could you describe what the correct encoding should be, and what wrong encoding it currently generates? Thanks! |
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@cherrymui Please refer to the following information. Thanks. |
ALTree
added
the
NeedsFix
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Change https://golang.org/cl/78275 mentions this issue: |
Please answer these questions before submitting your issue. Thanks!
What version of Go are you using (
go version)?go version devel +59051da Fri Jun 16 06:05:57 2017 +0000 linux/arm64
What operating system and processor architecture are you using (
go env)?GOARCH="arm64"
GOBIN=""
GOEXE=""
GOHOSTARCH="arm64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/fanzha02/go"
GORACE=""
GOROOT="/home/fanzha02/work/asm_test/golang_us/golang_1/golang"
GOTOOLDIR="/home/fanzha02/work/asm_test/golang_us/golang_1/golang/pkg/tool/linux_arm64"
GCCGO="gccgo"
CC="gcc"
GOGCCFLAGS="-fPIC -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build468264647=/tmp/go-build -gno-record-gcc-switches"
CXX="g++"
CGO_ENABLED="1"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
What did you do?
cd src/cmd/asm/internal/asm
add arm64enc.s test file
enable the ARM64Encoder test command
go test -run "ARM64Encoder"
arm64enc.s test file and endtoend_test.go you can load from this patch:
https://go-review.googlesource.com/c/46438/1
If possible, provide a recipe for reproducing the error.
A complete runnable program is good.
A link on play.golang.org is best.
What did you expect to see?
go test successfully
What did you see instead?
the hlt/hvc/smc/brk/clrex test cases are failed
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