config: add an option to enable KPROBE

Signed-off-by: Mathieu Olivari <[email protected]>

SVN-Revision: 45212

config/Config-kernel.in

@@ -127,6 +127,23 @@ config KERNEL_EARLY_PRINTK
 	  debugging purposes to send messages over the serial console in early boot.
 	  Enable this to debug early boot problems.
 
+config KERNEL_KPROBES
+	bool "Compile the kernel with kprobes support"
+	default n
+	select KERNEL_FTRACE
+	select KERNEL_PERF_EVENTS
+	help
+	  Compiles the kernel with KPROBES support, which allows you to trap
+	  at almost any kernel address and execute a callback function.
+	  register_kprobe() establishes a probepoint and specifies the
+	  callback. Kprobes is useful for kernel debugging, non-intrusive
+	  instrumentation and testing.
+	  If in doubt, say "N".
+
+config KERNEL_KPROBE_EVENT
+	bool
+	default y if KERNEL_KPROBES
+
 config KERNEL_AIO
 	bool "Compile the kernel with asynchronous IO support"
 	default n

include/kernel-defaults.mk

@@ -107,7 +107,6 @@ define Kernel/Configure/Default
 	echo "# CONFIG_KALLSYMS_EXTRA_PASS is not set" >> $(LINUX_DIR)/.config.target
 	echo "# CONFIG_KALLSYMS_ALL is not set" >> $(LINUX_DIR)/.config.target
 	echo "# CONFIG_KALLSYMS_UNCOMPRESSED is not set" >> $(LINUX_DIR)/.config.target
-	echo "# CONFIG_KPROBES is not set" >> $(LINUX_DIR)/.config.target
 	$(SCRIPT_DIR)/metadata.pl kconfig $(TMP_DIR)/.packageinfo $(TOPDIR)/.config $(KERNEL_PATCHVER) > $(LINUX_DIR)/.config.override
 	$(SCRIPT_DIR)/kconfig.pl 'm+' '+' $(LINUX_DIR)/.config.target /dev/null $(LINUX_DIR)/.config.override > $(LINUX_DIR)/.config
 	$(call Kernel/SetNoInitramfs)

target/linux/generic/config-3.10

@@ -204,6 +204,7 @@ CONFIG_ARM_DMA_MEM_BUFFERABLE=y
 # CONFIG_ARM_ERRATA_764369 is not set
 # CONFIG_ARM_ERRATA_775420 is not set
 # CONFIG_ARM_ERRATA_798181 is not set
+# CONFIG_ARM_KPROBES_TEST is not set
 # CONFIG_ARM_PATCH_PHYS_VIRT is not set
 # CONFIG_ARM_PSCI is not set
 # CONFIG_ARM_UNWIND is not set
@@ -1551,6 +1552,7 @@ CONFIG_KERNEL_XZ=y
 # CONFIG_KGDB is not set
 # CONFIG_KMEMCHECK is not set
 # CONFIG_KPROBES is not set
+# CONFIG_KPROBES_SANITY_TEST is not set
 # CONFIG_KS8842 is not set
 # CONFIG_KS8851 is not set
 # CONFIG_KS8851_MLL is not set
@@ -2172,6 +2174,7 @@ CONFIG_NET_SCH_FQ_CODEL=y
 # CONFIG_NET_SCH_SFQ is not set
 # CONFIG_NET_SCH_TBF is not set
 # CONFIG_NET_SCH_TEQL is not set
+# CONFIG_NET_TCPPROBE is not set
 # CONFIG_NET_TEAM is not set
 # CONFIG_NET_TULIP is not set
 CONFIG_NET_VENDOR_3COM=y
@@ -2569,6 +2572,7 @@ CONFIG_PPP_MULTILINK=y
 # CONFIG_PPTP is not set
 # CONFIG_PREEMPT is not set
 CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_TRACER is not set
 # CONFIG_PREEMPT_VOLUNTARY is not set
 CONFIG_PREVENT_FIRMWARE_BUILD=y
 CONFIG_PRINTK=y

target/linux/generic/config-3.14

@@ -229,6 +229,7 @@ CONFIG_ARM_DMA_MEM_BUFFERABLE=y
 # CONFIG_ARM_ERRATA_773022 is not set
 # CONFIG_ARM_ERRATA_775420 is not set
 # CONFIG_ARM_ERRATA_798181 is not set
+# CONFIG_ARM_KPROBES_TEST is not set
 # CONFIG_ARM_PATCH_PHYS_VIRT is not set
 # CONFIG_ARM_PSCI is not set
 # CONFIG_ARM_PTDUMP is not set
@@ -1687,6 +1688,7 @@ CONFIG_KERNEL_XZ=y
 # CONFIG_KGDB is not set
 # CONFIG_KMEMCHECK is not set
 # CONFIG_KPROBES is not set
+# CONFIG_KPROBES_SANITY_TEST is not set
 # CONFIG_KS8842 is not set
 # CONFIG_KS8851 is not set
 # CONFIG_KS8851_MLL is not set
@@ -2347,6 +2349,7 @@ CONFIG_NET_SCH_FQ_CODEL=y
 # CONFIG_NET_SCH_SFQ is not set
 # CONFIG_NET_SCH_TBF is not set
 # CONFIG_NET_SCH_TEQL is not set
+# CONFIG_NET_TCPPROBE is not set
 # CONFIG_NET_TEAM is not set
 # CONFIG_NET_TULIP is not set
 CONFIG_NET_VENDOR_3COM=y
@@ -2762,6 +2765,7 @@ CONFIG_PPP_MULTILINK=y
 # CONFIG_PPTP is not set
 # CONFIG_PREEMPT is not set
 CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_TRACER is not set
 # CONFIG_PREEMPT_VOLUNTARY is not set
 CONFIG_PREVENT_FIRMWARE_BUILD=y
 CONFIG_PRINTK=y

target/linux/generic/config-3.18

@@ -247,6 +247,7 @@ CONFIG_ARM_DMA_MEM_BUFFERABLE=y
 # CONFIG_ARM_ERRATA_773022 is not set
 # CONFIG_ARM_ERRATA_775420 is not set
 # CONFIG_ARM_ERRATA_798181 is not set
+# CONFIG_ARM_KPROBES_TEST is not set
 # CONFIG_ARM_PATCH_PHYS_VIRT is not set
 # CONFIG_ARM_PSCI is not set
 # CONFIG_ARM_PTDUMP is not set
@@ -1767,6 +1768,7 @@ CONFIG_KERNFS=y
 # CONFIG_KGDB is not set
 # CONFIG_KMEMCHECK is not set
 # CONFIG_KPROBES is not set
+# CONFIG_KPROBES_SANITY_TEST is not set
 # CONFIG_KS8842 is not set
 # CONFIG_KS8851 is not set
 # CONFIG_KS8851_MLL is not set
@@ -2468,6 +2470,7 @@ CONFIG_NET_SCH_FQ_CODEL=y
 # CONFIG_NET_SCH_SFQ is not set
 # CONFIG_NET_SCH_TBF is not set
 # CONFIG_NET_SCH_TEQL is not set
+# CONFIG_NET_TCPPROBE is not set
 # CONFIG_NET_TEAM is not set
 # CONFIG_NET_TULIP is not set
 # CONFIG_NET_UDP_TUNNEL is not set
@@ -2896,6 +2899,7 @@ CONFIG_PPP_MULTILINK=y
 # CONFIG_PPTP is not set
 # CONFIG_PREEMPT is not set
 CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_TRACER is not set
 # CONFIG_PREEMPT_VOLUNTARY is not set
 CONFIG_PREVENT_FIRMWARE_BUILD=y
 CONFIG_PRINTK=y

target/linux/generic/config-4.0

@@ -249,6 +249,7 @@ CONFIG_ARM_DMA_MEM_BUFFERABLE=y
 # CONFIG_ARM_ERRATA_775420 is not set
 # CONFIG_ARM_ERRATA_798181 is not set
 # CONFIG_ARM_KERNMEM_PERMS is not set
+# CONFIG_ARM_KPROBES_TEST is not set
 # CONFIG_ARM_PATCH_PHYS_VIRT is not set
 # CONFIG_ARM_PSCI is not set
 # CONFIG_ARM_PTDUMP is not set
@@ -1801,6 +1802,7 @@ CONFIG_KERNFS=y
 # CONFIG_KMEMCHECK is not set
 # CONFIG_KMX61 is not set
 # CONFIG_KPROBES is not set
+# CONFIG_KPROBES_SANITY_TEST is not set
 # CONFIG_KS8842 is not set
 # CONFIG_KS8851 is not set
 # CONFIG_KS8851_MLL is not set
@@ -2517,6 +2519,7 @@ CONFIG_NET_SCH_FQ_CODEL=y
 # CONFIG_NET_SCH_TBF is not set
 # CONFIG_NET_SCH_TEQL is not set
 # CONFIG_NET_SWITCHDEV is not set
+# CONFIG_NET_TCPPROBE is not set
 # CONFIG_NET_TEAM is not set
 # CONFIG_NET_TULIP is not set
 # CONFIG_NET_UDP_TUNNEL is not set
@@ -2951,6 +2954,7 @@ CONFIG_PPP_MULTILINK=y
 # CONFIG_PPTP is not set
 # CONFIG_PREEMPT is not set
 CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_TRACER is not set
 # CONFIG_PREEMPT_VOLUNTARY is not set
 CONFIG_PREVENT_FIRMWARE_BUILD=y
 CONFIG_PRINTK=y