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Commit 71429a97 authored by Kalesh Singh's avatar Kalesh Singh
Browse files

Add group ID for reading tracefs 

Add AID_READTRACEFS and mount tracefs with gid=AID_READTRACEFS

Bug: 209513178
Bug: 214061655
Test: adb shell ls -l /sys/kernel/tracing/events
Change-Id: Ibbfdf8a4b771bd7520ecbaaf15a1153d6bf0e599
Merged-In: Ibbfdf8a4b771bd7520ecbaaf15a1153d6bf0e599
parent 739f4f5f

libcutils/include/private/android_filesystem_config.h

+1 −0
Original line number Diff line number Diff line
@@ -157,6 +157,7 @@ 
#define AID_READPROC 3009     /* Allow /proc read access */

#define AID_WAKELOCK 3010     /* Allow system wakelock read/write access */

#define AID_UHID 3011         /* Allow read/write to /dev/uhid node */

#define AID_READTRACEFS 3012  /* Allow tracefs read */



/* The range 5000-5999 is also reserved for vendor partition. */

#define AID_OEM_RESERVED_2_START 5000

rootdir/init.rc

+2 −2
Original line number Diff line number Diff line
@@ -78,8 +78,8 @@ on early-init 
    mkdir /dev/boringssl 0755 root root

    mkdir /dev/boringssl/selftest 0755 root root



    # Mount tracefs

    mount tracefs tracefs /sys/kernel/tracing

    # Mount tracefs (with GID=AID_READTRACEFS)

    mount tracefs tracefs /sys/kernel/tracing gid=3012



    # create sys dirctory

    mkdir /dev/sys 0755 system system