plctlab / gollvm Goto Github PK

On ubuntu-20.04.2-preinstalled-server-riscv64 (qemu):

cmake -DCMAKE_BUILD_TYPE=Debug -DGOLLVM_USE_SPLIT_STACK=OFF -DGOLLVM_DEFAULT_LINKER=bfd -DLLVM_USE_LINKER=bfd -DLLVM_TARGETS_TO_BUILD="RISCV" -G Ninja ../llvm-project/llvm -D CMAKE_INSTALL_PREFIX=../install-debug/
ninja gollvm

Error:

[1/1215] Building Go package 'runtime' (PIC)                                    
FAILED: tools/gollvm/libgo/.pic/runtime.o                                       
cd /home/ubuntu/build-debug/tools/gollvm/libgo && /usr/bin/cmake -E make_directory ././.pic && /home/ubuntu/build-debug/./bin/llvm-goc -c -o /home/ubuntu/build-debug/tools/gollvm/libgo/./.pic/runtime.o -fPIC -fgo-pkgpath=runtime -fgo-c-header=runtime.inc.raw -fgo-compiling-runtime -fno-split-stack -I . /home/ubuntu/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/alg.go 
[list of source files] /home/ubuntu/build-debug/tools/gollvm/libgo/goroot.go 
PromoteIntegerOperand Op #0: t23: i64 = EH_DWARF_CFA Constant:i32<0>, cgo_gccgo.go:86:16

Do not know how to promote this operator's operand!
UNREACHABLE executed at /home/ubuntu/llvm-project/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp:1567!                                                  
#0 0x0000002abf47bf68 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (.localalias) /home/ubuntu/llvm-project/llvm/lib/Support/Unix/Signals.inc:565:22
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.                                                     
Stack dump:
0.      Program arguments: /home/ubuntu/build-debug/./bin/llvm-goc
[see above]
/home/ubuntu/build-debug/tools/gollvm/libgo/goroot.go                                                                     
1.      Running pass 'Function Pass Manager' on module 'gomodule'.              
2.      Running pass 'RISCV DAG->DAG Pattern Instruction Selection' on function 
'@syscall.CgocallBack'
Aborted (core dumped)

llvm: f3244f6
gollvm: 121b2ae

Hardware: unmatched004

comand: ninja check-gollvm -k 20
all log:
log-check-gollvm-k-20.txt

• 28:FAILED: tools/gollvm/libgo/CMakeFiles/check_libgo_mime
• 30:--- FAIL: TestTypeByExtensionUNIX (0.00s)
• 32:FAIL
• 150:FAILED: tools/gollvm/libgo/CMakeFiles/check_libgo_text_scanner
• 152:--- FAIL: TestInvalidExponent (0.00s)
• 154:--- FAIL: TestIssue30320 (0.00s)
• 160:--- FAIL: TestNumbers (0.01s)
• 174:--- FAIL: TestPosition (0.07s)
• 493:--- FAIL: TestScan (0.00s)
• 495:--- FAIL: TestScanCustomIdent (0.00s)
• 497:FAIL
• 509:FAILED: tools/gollvm/libgo/CMakeFiles/check_libgo_runtime_pprof
• 524:FAILED: tools/gollvm/libgo/CMakeFiles/check_libgo_go_internal_gccgoimporter
• 526:--- FAIL: TestGoxImporter (0.00s)
• 642:FAILED: tools/gollvm/libgo/CMakeFiles/check_libgo_runtime_debug
• 831:FAILED: tools/gollvm/gotools/CMakeFiles/check_go_tool
• 834:FAILED: tools/gollvm/gotools/CMakeFiles/check_cgo_tool
• 837:FAILED: tools/gollvm/gotools/CMakeFiles/check_vet_tool
• 840:FAILED: tools/gollvm/gotools/CMakeFiles/check_carchive_tool
• 849:FAILED: tools/gollvm/libgo/CMakeFiles/check_libgo_runtime
• 851:--- FAIL: TestGetgThreadSwitch (0.00s)
• 1683:FAILED: tools/gollvm/gotools/CMakeFiles/check_runtime_with_gotool
• 1685:--- FAIL: TestGetgThreadSwitch (0.00s)

输入：llvm-goc --target=riscv64-unknown-linux-gnu -march=rv64gc -fgo-pkgpath=foo -O0 -S test.go -o test.s

test.go 的内容

package main
import "fmt"
func main() {
    fmt.Println("hello world")
}

遇到的问题

test.go:4:5: error: reference to undefined name 'fmt'
unsupported llvm::CallingConv::ID 0
unsupported llvm::CallingConv::ID 0
unsupported llvm::CallingConv::ID 0
unsupported llvm::CallingConv::ID 0

Latest code:​ https://github.com/realqhc/gollvm/tree/gollvm-build-riscv

Download : llvm-goc bin:https://github.com/realqhc/gollvm/releases/tag/0.0.1

cat hello.go
package main
import "fmt"
func main() {
fmt.Println("hello world")
}

llvm-goc -static-libgo -latomic hello.go
$ ./a.out
Segmentation fault (core dumped)

gdb a.out
GNU gdb (Ubuntu 10.1-2ubuntu2) 10.1.90.20210411-git
Copyright (C) 2021 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "riscv64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
https://www.gnu.org/software/gdb/bugs/.
Find the GDB manual and other documentation resources online at:
http://www.gnu.org/software/gdb/documentation/.

For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from a.out...
(gdb) r
Starting program: /home/liaochunyu/a.out
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/riscv64-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
runtime.argv_index (argv=0x30000000003, i=-2967) at /home/anakano/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/runtime1.go:69
69 /home/anakano/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/runtime1.go: No such file or directory.
(gdb)

复现方法：
clone yt的llvm-for-gollvm分支，clone我的fork中gollvm-build-riscv分支

cd llvm/tools
git clone [email protected]:realqhc/gollvm.git -b gollvm-build-riscv --recusive
cd ../../
mkdir build; cd build
cmake -DCMAKE_BUILD_TYPE=Debug `-DGOLLVM_USE_SPLIT_STACK=OFF -DGOLLVM_DEFAULT_LINKER=bfd -DLLVM_USE_LINKER=bfd -G Ninja ../llvm
ninja gollvm

报错

tools/gollvm/libgo/ffi.h:504:5: error: #if with no expression
  504 | #if
      |     ^

llvm： upstream commit bfb4c0c37078aa5ce251752d99310ccb05e1296a

gollvm: upstream commit 0e34e09

environment： p6
steps：
cmake -DCMAKE_BUILD_TYPE=Release -DLLVM_USE_LINKER=gold -G Ninja ../llvm

ninja check-gollvm -k 30

all log:
log_x86.txt

126:FAILED: tools/gollvm/libgo/CMakeFiles/check_libgo_runtime_debug
128:failed to rethrow unwind exception (reason=5)
188:FAILED: tools/gollvm/gotools/CMakeFiles/check_cgo_tool
201:FAILED: tools/gollvm/gotools/CMakeFiles/check_carchive_tool
206:FAILED: tools/gollvm/gotools/CMakeFiles/check_vet_tool
211:FAILED: tools/gollvm/gotools/CMakeFiles/check_go_tool
285:FAILED: tools/gollvm/libgo/CMakeFiles/check_libgo_mime
287:--- FAIL: TestTypeByExtensionUNIX (0.00s)
289:FAIL
480:FAILED: tools/gollvm/libgo/CMakeFiles/check_libgo_runtime
484:FAILED: tools/gollvm/gotools/CMakeFiles/check_runtime_with_gotool
490:FAILED: tools/gollvm/libgo/CMakeFiles/check_libgo_runtime_pprof
492:--- FAIL: TestCPUProfile (7.13s)
706:--- FAIL: TestCPUProfileLabel (6.94s)
896:--- FAIL: TestCPUProfileMultithreadMagnitude (18.76s)
898: --- FAIL: TestCPUProfileMultithreadMagnitude/serial (7.32s)
1099: --- FAIL: TestCPUProfileMultithreadMagnitude/parallel (11.44s)
1594: pprof_test.go:126: Failure of this test may indicate that your system suffers from a known Linux kernel bug fixed on newer kernels. See https://golang.org/issue/49065.
1595:--- FAIL: TestCPUProfileMultithreaded (8.53s)
1981:--- FAIL: TestCPUProfileRecursion (7.14s)
2359:--- FAIL: TestLabelSystemstack (7.26s)
2641:--- FAIL: TestTimeVDSO (6.93s)
2921:FAIL