一、背景
最新高通user 版本需要抓取kernel log
二、修改方法
android 8.1 user 版本開啟 adb 調(diào)試和root ?
diff --git a/build/make/core/main.mk b/build/make/core/main.mk
old mode 100644
new mode 100755
index 3d42c8f..dd0e1e8
--- a/build/make/core/main.mk
+++ b/build/make/core/main.mk
@@ -239,11 +239,11 @@ enable_target_debugging := true
tags_to_install :=
ifneq (,$(user_variant))
? # Target is secure in user builds.
-? ADDITIONAL_DEFAULT_PROPERTIES += ro.secure=1
+? ADDITIONAL_DEFAULT_PROPERTIES += ro.secure=0
? ADDITIONAL_DEFAULT_PROPERTIES += security.perf_harden=1
? ifeq ($(user_variant),user)
-? ? ADDITIONAL_DEFAULT_PROPERTIES += ro.adb.secure=1
+? ? ADDITIONAL_DEFAULT_PROPERTIES += ro.adb.secure=0
? endif
? ifeq ($(user_variant),userdebug)
@@ -251,7 +251,7 @@ ifneq (,$(user_variant))
? ? tags_to_install += debug
? else
? ? # Disable debugging in plain user builds.
-? ? enable_target_debugging :=
+? ? #enable_target_debugging :=
? endif
? # Disallow mock locations by default for user builds
diff --git a/device/qcom/msm8953_64/msm8953_64.mk b/device/qcom/msm8953_64/msm8953_64.mk
index b70d91b..d4eee35 100755
--- a/device/qcom/msm8953_64/msm8953_64.mk
+++ b/device/qcom/msm8953_64/msm8953_64.mk
@@ -32,6 +32,10 @@ endif
TARGET_ENABLE_QC_AV_ENHANCEMENTS := true
+
+PRODUCT_DEFAULT_PROPERTY_OVERRIDES += \
+persist.sys.usb.config=ptp,adb
+
# Default vendor configuration.
ifeq ($(ENABLE_VENDOR_IMAGE),)
ENABLE_VENDOR_IMAGE := true
diff --git a/kernel/msm-3.18/arch/arm64/configs/msmcortex-perf_defconfig b/kernel/msm-3.18/arch/arm64/configs/msmcortex-perf_defconfig
index 304ccdb..69fbbf3 100755
--- a/kernel/msm-3.18/arch/arm64/configs/msmcortex-perf_defconfig
+++ b/kernel/msm-3.18/arch/arm64/configs/msmcortex-perf_defconfig
@@ -32,6 +32,7 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
# CONFIG_SLUB_DEBUG is not set
+CONFIG_LOG_BUF_SHIFT=21
CONFIG_PROFILING=y
CONFIG_CC_STACKPROTECTOR_STRONG=y
CONFIG_ARCH_MMAP_RND_COMPAT_BITS=16
diff --git a/kernel/msm-3.18/arch/arm64/configs/msmcortex_defconfig b/kernel/msm-3.18/arch/arm64/configs/msmcortex_defconfig
index 077179a..254befb 100755
--- a/kernel/msm-3.18/arch/arm64/configs/msmcortex_defconfig
+++ b/kernel/msm-3.18/arch/arm64/configs/msmcortex_defconfig
@@ -25,6 +25,7 @@ CONFIG_LEDS_GPIO=y
CONFIG_LEDS_TRIGGER_TIMER=y
# CONFIG_UTS_NS is not set
# CONFIG_PID_NS is not set
+CONFIG_LOG_BUF_SHIFT=21
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_KALLSYMS_ALL=y
diff --git a/system/core/adb/Android.mk b/system/core/adb/Android.mk
old mode 100644
new mode 100755
index 9b59d11..0772370
--- a/system/core/adb/Android.mk
+++ b/system/core/adb/Android.mk
@@ -381,7 +381,7 @@ LOCAL_CFLAGS := \
LOCAL_CFLAGS += -DALLOW_ADBD_ROOT=$(if $(filter userdebug eng,$(TARGET_BUILD_VARIANT)),1,0)
LOCAL_CFLAGS += -DALLOW_ADBD_NO_AUTH=$(if $(filter userdebug eng,$(TARGET_BUILD_VARIANT)),1,0)
-ifneq (,$(filter userdebug eng,$(TARGET_BUILD_VARIANT)))
+ifneq (,$(filter user userdebug eng,$(TARGET_BUILD_VARIANT)))
LOCAL_CFLAGS += -DALLOW_ADBD_DISABLE_VERITY=1
endif
diff --git a/system/core/init/init.cpp b/system/core/init/init.cpp
index 5d284df..3df31a7 100755
--- a/system/core/init/init.cpp
+++ b/system/core/init/init.cpp
@@ -585,7 +585,8 @@ static selinux_enforcing_status selinux_status_from_cmdline() {
}
static bool selinux_is_enforcing(void)
-{
+{?
+? ? return false;
? ? if (ALLOW_PERMISSIVE_SELINUX) {
? ? ? ? return selinux_status_from_cmdline() == SELINUX_ENFORCING;
? ? }
三、搞定。
