promu/riscv64-support.patch
2023-06-14 19:53:14 +08:00

85 lines
2.6 KiB
Diff

diff --git a/vendor/github.com/prometheus/procfs/cpuinfo.go b/vendor/github.com/prometheus/procfs/cpuinfo.go
index 31d42f7..02693d1 100644
--- a/vendor/github.com/prometheus/procfs/cpuinfo.go
+++ b/vendor/github.com/prometheus/procfs/cpuinfo.go
@@ -19,6 +19,7 @@ import (
"bufio"
"bytes"
"errors"
+ "fmt"
"regexp"
"strconv"
"strings"
@@ -407,6 +408,46 @@ func parseCPUInfoPPC(info []byte) ([]CPUInfo, error) {
return cpuinfo, nil
}
+func parseCPUInfoRISCV(info []byte) ([]CPUInfo, error) {
+ scanner := bufio.NewScanner(bytes.NewReader(info))
+
+ firstLine := firstNonEmptyLine(scanner)
+ if !strings.HasPrefix(firstLine, "processor") || !strings.Contains(firstLine, ":") {
+ return nil, fmt.Errorf("invalid cpuinfo file: %q", firstLine)
+ }
+ field := strings.SplitN(firstLine, ": ", 2)
+ v, err := strconv.ParseUint(field[1], 0, 32)
+ if err != nil {
+ return nil, err
+ }
+ firstcpu := CPUInfo{Processor: uint(v)}
+ cpuinfo := []CPUInfo{firstcpu}
+ i := 0
+
+ for scanner.Scan() {
+ line := scanner.Text()
+ if !strings.Contains(line, ":") {
+ continue
+ }
+ field := strings.SplitN(line, ": ", 2)
+ switch strings.TrimSpace(field[0]) {
+ case "processor":
+ v, err := strconv.ParseUint(field[1], 0, 32)
+ if err != nil {
+ return nil, err
+ }
+ i = int(v)
+ cpuinfo = append(cpuinfo, CPUInfo{}) // start of the next processor
+ cpuinfo[i].Processor = uint(v)
+ case "hart":
+ cpuinfo[i].CoreID = field[1]
+ case "isa":
+ cpuinfo[i].ModelName = field[1]
+ }
+ }
+ return cpuinfo, nil
+}
+
// firstNonEmptyLine advances the scanner to the first non-empty line
// and returns the contents of that line
func firstNonEmptyLine(scanner *bufio.Scanner) string {
diff --git a/vendor/github.com/prometheus/procfs/cpuinfo_riscvx.go b/vendor/github.com/prometheus/procfs/cpuinfo_riscvx.go
new file mode 100644
index 0000000..e83c2e2
--- /dev/null
+++ b/vendor/github.com/prometheus/procfs/cpuinfo_riscvx.go
@@ -0,0 +1,19 @@
+// Copyright 2020 The Prometheus Authors
+// 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.
+
+// +build linux
+// +build riscv riscv64
+
+package procfs
+
+var parseCPUInfo = parseCPUInfoRISCV