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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/sentry/fs
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/sentry/fs')
-rw-r--r--pkg/sentry/fs/proc/cpuinfo.go8
1 files changed, 5 insertions, 3 deletions
diff --git a/pkg/sentry/fs/proc/cpuinfo.go b/pkg/sentry/fs/proc/cpuinfo.go
index 3edf36780..6330337eb 100644
--- a/pkg/sentry/fs/proc/cpuinfo.go
+++ b/pkg/sentry/fs/proc/cpuinfo.go
@@ -15,6 +15,8 @@
package proc
import (
+ "bytes"
+
"gvisor.dev/gvisor/pkg/sentry/context"
"gvisor.dev/gvisor/pkg/sentry/fs"
"gvisor.dev/gvisor/pkg/sentry/kernel"
@@ -27,9 +29,9 @@ func newCPUInfo(ctx context.Context, msrc *fs.MountSource) *fs.Inode {
// Kernel is always initialized with a FeatureSet.
panic("cpuinfo read with nil FeatureSet")
}
- contents := make([]byte, 0, 1024)
+ var buf bytes.Buffer
for i, max := uint(0), k.ApplicationCores(); i < max; i++ {
- contents = append(contents, []byte(features.CPUInfo(i))...)
+ features.WriteCPUInfoTo(i, &buf)
}
- return newStaticProcInode(ctx, msrc, contents)
+ return newStaticProcInode(ctx, msrc, buf.Bytes())
}