Commit 3e1e7db3 authored by Anders Darander's avatar Anders Darander Committed by Peter Korsgaard
Browse files

ktap: new package 



Add ktap, a script-based dynamic tracing tool.

Signed-off-by: default avatarAnders Darander <anders@chargestorm.se>
Signed-off-by: default avatarPeter Korsgaard <peter@korsgaard.com>
parent 63e1c6b2

package/Config.in

+1 −0
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@@ -50,6 +50,7 @@ source "package/duma/Config.in" 
source "package/gdb/Config.in"

source "package/iozone/Config.in"

source "package/kexec/Config.in"

source "package/ktap/Config.in"

source "package/latencytop/Config.in"

source "package/lmbench/Config.in"

if BR2_PACKAGE_BUSYBOX_SHOW_OTHERS

package/ktap/Config.in

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config BR2_PACKAGE_KTAP

	bool "ktap"

	depends on BR2_LINUX_KERNEL

	depends on BR2_TOOLCHAIN_HAS_THREADS

	help

	  ktap is a script-based dynamic tracing tool for Linux



	  It uses a scripting language and lets users trace the Linux kernel

	  dynamically. ktap is designed to give operational insights with

	  interoperability that allows users to tune, troubleshoot and extend

	  kernel and application. It's similar to Linux Systemtap and

	  Solaris Dtrace.



	  ktap doesn't support kernels older than 3.1.



	  Your kernel must have CONFIG_EVENT_TRACING,

	  CONFIG_PERF_EVENTS, and CONFIG_DEBUG_FS enabled to compile.



	  http://www.ktap.org



comment "ktap requires a linux kernel to be built"

	depends on !BR2_LINUX_KERNEL



comment "ktap needs a toolchain w/ threads"

	depends on !BR2_TOOLCHAIN_HAS_THREADS

package/ktap/ktap-0001-interpreter-vm.c-include-uaccess.h.patch

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From 343cb5a8b11a1dfdf4262fce326113e889f13496 Mon Sep 17 00:00:00 2001

From: Anders Darander <anders@chargestorm.se>

Date: Sat, 9 Nov 2013 23:05:05 +0100

Subject: [PATCH] interpreter/vm.c: include uaccess.h



otherwise functions, such as copy_from_user, is implicitly defined.



Signed-off-by: Anders Darander <anders@chargestorm.se>

---

 interpreter/vm.c | 1 +

 1 file changed, 1 insertion(+)



diff --git a/interpreter/vm.c b/interpreter/vm.c

index bc7b951..f7cb794 100644

--- a/interpreter/vm.c

+++ b/interpreter/vm.c

@@ -28,6 +28,7 @@

 #include <linux/signal.h>

 #include <linux/sched.h>

 #include "../include/ktap.h"

+#include <linux/uaccess.h>

 

 #define KTAP_MINSTACK 20

 

-- 

1.8.4.2

package/ktap/ktap-0002-Set-PWD-in-Makefile.patch

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From 90a8dd877b7766b1ba722c19569cffb68625288b Mon Sep 17 00:00:00 2001

From: Anders Darander <anders@chargestorm.se>

Date: Mon, 11 Nov 2013 13:04:36 +0100

Subject: Set PWD in Makefile



When cross-compiling using e.g. buildroot, PWD was not reset in the Makefile.

That caused PWD to have an incorrect value, and thus building the module failed.



Signed-off-by: Anders Darander <anders@chargestorm.se>

---

 Makefile | 1 +

 1 file changed, 1 insertion(+)



diff --git a/Makefile b/Makefile

index 372b41a..939d25e 100644

--- a/Makefile

+++ b/Makefile

@@ -25,6 +25,7 @@ ktapvm-y	:= $(INTP_OBJS)

 

 KVERSION ?= $(shell uname -r)

 KERNEL_SRC ?= /lib/modules/$(KVERSION)/build

+PWD := $(shell pwd)

 mod:

 	$(MAKE) -C $(KERNEL_SRC) M=$(PWD) modules

 

-- 

1.8.4.2

package/ktap/ktap.mk

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################################################################################

#

# ktap, script-based dynamic tracing tool

#

################################################################################



KTAP_VERSION = v0.3

KTAP_SITE = $(call github,ktap,ktap,$(KTAP_VERSION))

KTAP_SOURCE = v$(KTAP_VERSION).tar.gz

KTAP_LICENSE = GPLv2

KTAP_LICENSE_FILES = LICENSE-GPL



KTAP_DEPENDENCIES = linux



define KTAP_BUILD_CMDS

	$(MAKE) -C $(@D) $(TARGET_CONFIGURE_OPTS) ktap

	$(MAKE) -C $(@D) $(LINUX_MAKE_FLAGS) KERNEL_SRC=$(LINUX_DIR) KVERSION=$(LINUX_VERSION_PROBED) mod

endef



define KTAP_INSTALL_TARGET_CMDS

	$(INSTALL) -D -m755 $(@D)/ktap  $(TARGET_DIR)/usr/bin/ktap

	$(MAKE) -C $(@D) $(LINUX_MAKE_FLAGS) KERNEL_SRC=$(LINUX_DIR) KVERSION=$(LINUX_VERSION_PROBED) modules_install

endef



$(eval $(generic-package))