Config File

Introduction

Config File defines the Stack info used to patch kernel.
If you do not need it, set the two values to 0.

Format

• A config file should only contain the following contents.

StackBase=0x00000000
StackSize=0x00000000
RestartReasonAddress=0x00000000

• The value after = must be hex number.
• Config file not in this format will cause unexceptional behavior.

How to get these values

• StackBase

  • StackBase can be found in your device's MemoryMap, which is named UEFI FD

• StackSize

  • StackSize the right after the base address of UEFI FD.

• RestartReasonAddress

  • Comming Soon.
  • RestartReasonAddress can be found in a Qualcomm device's device tree.
  • Enter android or recovery, run the following shell cmd with root permission.
  • Output should like this:

  android:/# printf "RestartReasonAddress=0x%x\n" $((0x$(realpath /sys/firmware/devicetree/base/soc/qcom\,msm-imem@*/restart_reason@* | awk -F'[@/]' '{print $(NF-2)"+0x"$(NF)}')))
  RestartReasonAddress=0x146bf65c