cgo: let the go toolchain build the c library (#20473)

let the go toolchain build c library to avoid dynamic linking with `-lmo`

Approved by: @zhangxu19830126, @aunjgr

Makefile

@@ -98,7 +98,7 @@ pb: vendor-build generate-pb fmt
 RACE_OPT :=
 DEBUG_OPT :=
 CGO_DEBUG_OPT :=
-CGO_OPTS=CGO_CFLAGS="-I$(ROOT_DIR)/cgo " CGO_LDFLAGS="-L$(ROOT_DIR)/cgo -lm -lmo"
+CGO_OPTS :=
 GOLDFLAGS=-ldflags="-X '$(GO_MODULE)/pkg/version.GoVersion=$(GO_VERSION)' -X '$(GO_MODULE)/pkg/version.BranchName=$(BRANCH_NAME)' -X '$(GO_MODULE)/pkg/version.CommitID=$(LAST_COMMIT_ID)' -X '$(GO_MODULE)/pkg/version.BuildTime=$(BUILD_TIME)' -X '$(GO_MODULE)/pkg/version.Version=$(MO_VERSION)'"
 TAGS :=
 
@@ -108,7 +108,7 @@ cgo:
 
 # build mo-service binary
 .PHONY: build
-build: config cgo
+build: config
 	$(info [Build binary])
 	$(CGO_OPTS) go build $(TAGS) $(RACE_OPT) $(GOLDFLAGS) $(DEBUG_OPT) -o $(BIN_NAME) ./cmd/mo-service
 
@@ -139,7 +139,7 @@ musl:
 
 # build mo-tool
 .PHONY: mo-tool
-mo-tool: config cgo
+mo-tool: config
 	$(info [Build mo-tool tool])
 	$(CGO_OPTS) go build -o mo-tool ./cmd/mo-tool
 
@@ -158,7 +158,7 @@ debug: build
 # Excluding frontend test cases temporarily
 # Argument SKIP_TEST to skip a specific go test
 .PHONY: ut
-ut: config cgo
+ut: config
 	$(info [Unit testing])
 ifeq ($(UNAME_S),Darwin)
 	@cd optools && ./run_ut.sh UT $(SKIP_TEST)
@@ -240,7 +240,7 @@ install-static-check-tools:
 	@go install github.com/apache/skywalking-eyes/cmd/[email protected]
 
 .PHONY: static-check
-static-check: config cgo err-check
+static-check: config err-check
 	$(CGO_OPTS) go vet -vettool=`which molint` ./...
 	$(CGO_OPTS) license-eye -c .licenserc.yml header check
 	$(CGO_OPTS) license-eye -c .licenserc.yml dep check

cgo/lib.go

@@ -0,0 +1,21 @@
+// Copyright 2024 Matrix Origin
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cgo
+
+/*
+#cgo CFLAGS: -O3
+#cgo LDFLAGS: -lm
+*/
+import "C"

pkg/common/bitmap/cbitmap.go

@@ -15,13 +15,13 @@
 package bitmap
 
 /*
-#include "mo.h"
-
-#cgo CFLAGS: -I../../../cgo
-#cgo LDFLAGS: -L../../../cgo -lmo -lm
+#include "../../../cgo/mo.h"
 */
 import "C"
-import "unsafe"
+import (
+	_ "github.com/matrixorigin/matrixone/cgo"
+	"unsafe"
+)
 
 func (n *Bitmap) cPtr() *C.uint64_t {
 	return (*C.uint64_t)(unsafe.Pointer(&n.data[0]))