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authorFabricio Voznika <fvoznika@google.com>2020-01-16 12:28:44 -0800
committergVisor bot <gvisor-bot@google.com>2020-01-16 12:30:21 -0800
commit7b7c31820b83abcfe43f7170eff1f7953f3f27e2 (patch)
tree7a01db872d9c026b4a35437469e5c1ec94c7a1bf /pkg/cpuid
parentfea1ce655de92a5411589d2f4a6b8973cd911a77 (diff)
Add remaining /proc/* and /proc/sys/* files
Except for one under /proc/sys/net/ipv4/tcp_sack. /proc/pid/* is still incomplete. Updates #1195 PiperOrigin-RevId: 290120438
Diffstat (limited to 'pkg/cpuid')
-rw-r--r--pkg/cpuid/cpuid.go44
1 files changed, 21 insertions, 23 deletions
diff --git a/pkg/cpuid/cpuid.go b/pkg/cpuid/cpuid.go
index d37047368..cf50ee53f 100644
--- a/pkg/cpuid/cpuid.go
+++ b/pkg/cpuid/cpuid.go
@@ -657,30 +657,28 @@ func (fs *FeatureSet) FlagsString(cpuinfoOnly bool) string {
return strings.Join(s, " ")
}
-// CPUInfo is to generate a section of one cpu in /proc/cpuinfo. This is a
-// minimal /proc/cpuinfo, it is missing some fields like "microcode" that are
+// WriteCPUInfoTo is to generate a section of one cpu in /proc/cpuinfo. This is
+// a minimal /proc/cpuinfo, it is missing some fields like "microcode" that are
// not always printed in Linux. The bogomips field is simply made up.
-func (fs FeatureSet) CPUInfo(cpu uint) string {
- var b bytes.Buffer
- fmt.Fprintf(&b, "processor\t: %d\n", cpu)
- fmt.Fprintf(&b, "vendor_id\t: %s\n", fs.VendorID)
- fmt.Fprintf(&b, "cpu family\t: %d\n", ((fs.ExtendedFamily<<4)&0xff)|fs.Family)
- fmt.Fprintf(&b, "model\t\t: %d\n", ((fs.ExtendedModel<<4)&0xff)|fs.Model)
- fmt.Fprintf(&b, "model name\t: %s\n", "unknown") // Unknown for now.
- fmt.Fprintf(&b, "stepping\t: %s\n", "unknown") // Unknown for now.
- fmt.Fprintf(&b, "cpu MHz\t\t: %.3f\n", cpuFreqMHz)
- fmt.Fprintln(&b, "fpu\t\t: yes")
- fmt.Fprintln(&b, "fpu_exception\t: yes")
- fmt.Fprintf(&b, "cpuid level\t: %d\n", uint32(xSaveInfo)) // Same as ax in vendorID.
- fmt.Fprintln(&b, "wp\t\t: yes")
- fmt.Fprintf(&b, "flags\t\t: %s\n", fs.FlagsString(true))
- fmt.Fprintf(&b, "bogomips\t: %.02f\n", cpuFreqMHz) // It's bogus anyway.
- fmt.Fprintf(&b, "clflush size\t: %d\n", fs.CacheLine)
- fmt.Fprintf(&b, "cache_alignment\t: %d\n", fs.CacheLine)
- fmt.Fprintf(&b, "address sizes\t: %d bits physical, %d bits virtual\n", 46, 48)
- fmt.Fprintln(&b, "power management:") // This is always here, but can be blank.
- fmt.Fprintln(&b, "") // The /proc/cpuinfo file ends with an extra newline.
- return b.String()
+func (fs FeatureSet) WriteCPUInfoTo(cpu uint, b *bytes.Buffer) {
+ fmt.Fprintf(b, "processor\t: %d\n", cpu)
+ fmt.Fprintf(b, "vendor_id\t: %s\n", fs.VendorID)
+ fmt.Fprintf(b, "cpu family\t: %d\n", ((fs.ExtendedFamily<<4)&0xff)|fs.Family)
+ fmt.Fprintf(b, "model\t\t: %d\n", ((fs.ExtendedModel<<4)&0xff)|fs.Model)
+ fmt.Fprintf(b, "model name\t: %s\n", "unknown") // Unknown for now.
+ fmt.Fprintf(b, "stepping\t: %s\n", "unknown") // Unknown for now.
+ fmt.Fprintf(b, "cpu MHz\t\t: %.3f\n", cpuFreqMHz)
+ fmt.Fprintln(b, "fpu\t\t: yes")
+ fmt.Fprintln(b, "fpu_exception\t: yes")
+ fmt.Fprintf(b, "cpuid level\t: %d\n", uint32(xSaveInfo)) // Same as ax in vendorID.
+ fmt.Fprintln(b, "wp\t\t: yes")
+ fmt.Fprintf(b, "flags\t\t: %s\n", fs.FlagsString(true))
+ fmt.Fprintf(b, "bogomips\t: %.02f\n", cpuFreqMHz) // It's bogus anyway.
+ fmt.Fprintf(b, "clflush size\t: %d\n", fs.CacheLine)
+ fmt.Fprintf(b, "cache_alignment\t: %d\n", fs.CacheLine)
+ fmt.Fprintf(b, "address sizes\t: %d bits physical, %d bits virtual\n", 46, 48)
+ fmt.Fprintln(b, "power management:") // This is always here, but can be blank.
+ fmt.Fprintln(b, "") // The /proc/cpuinfo file ends with an extra newline.
}
const (