Commit e36e7db9 authored by Jeremy Kerr's avatar Jeremy Kerr Committed by Thomas Petazzoni
Browse files

package/kexec-lite: Add a package for the kexec-lite tools 



Kexec-lite is a tiny impementation of kexec for devicetree-based
platforms.

[Thomas:
- Add !BR2_PREFER_STATIC_LIB dependency, inherited from the dtc
  package
- Fix license to be GPLv2+, and not just GPL.
- Use $(TARGET_CONFIGURE_OPTS) instead of manually passing CC, LD,
  CFLAGS.
- Use a full path as the target of $(INSTALL)]

Signed-off-by: default avatarJeremy Kerr <jk@ozlabs.org>
Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
parent 994e9fa7

package/Config.in

+1 −0
Original line number Diff line number Diff line
@@ -61,6 +61,7 @@ menu "Debugging, profiling and benchmark" 
	source "package/google-breakpad/Config.in"

	source "package/iozone/Config.in"

	source "package/kexec/Config.in"

	source "package/kexec-lite/Config.in"

	source "package/ktap/Config.in"

	source "package/latencytop/Config.in"

	source "package/lmbench/Config.in"

package/kexec-lite/Config.in

0 → 100644
+17 −0
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config BR2_PACKAGE_KEXEC_LITE

	bool "kexec-lite"

	depends on BR2_powerpc || BR2_powerpc64

	depends on !BR2_PREFER_STATIC_LIB # dtc

	select BR2_PACKAGE_LIBELF

	select BR2_PACKAGE_DTC

	select BR2_PACKAGE_DTC_PROGRAMS

	help

	  Kexec is a user space utiltity for loading another kernel

	  and asking the currently running kernel to do something with it.



	  This package is a tiny implementation of the kexec userspace

	  components, for devicetree-based platforms.



comment "kexec-lite needs a toolchain w/ dynamic library"

	depends on BR2_powerpc || BR2_powerpc64

	depends on BR2_PREFER_STATIC_LIB

package/kexec-lite/kexec-lite-01-clean-restart.patch

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+34 −0
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From 0a654c20e1b9324c57ba4116b52fb6ab33847e1d Mon Sep 17 00:00:00 2001

From: Jeremy Kerr <jk@ozlabs.org>

Date: Thu, 8 Aug 2013 17:16:31 +0800

Subject: [PATCH] kexec: Implement clean restart for busybox init



Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

---

 kexec.c |    3 ++-

 1 file changed, 2 insertions(+), 1 deletion(-)



diff --git a/kexec.c b/kexec.c

index 2edb7df..b2a0c42 100644

--- a/kexec.c

+++ b/kexec.c

@@ -27,6 +27,7 @@

 #include <fcntl.h>

 #include <errno.h>

 #include <syscall.h>

+#include <signal.h>

 #include <libfdt.h>

 #include <getopt.h>

 #include <sys/types.h>

@@ -818,7 +819,7 @@ int main(int argc, char *argv[])

 			sync();

 			exec_kexec();

 		} else {

-			execlp("shutdown", "shutdown", "-r", "now", NULL);

+			kill(1, SIGQUIT);

 		}

 

 		return -1;

-- 

1.7.10.4

package/kexec-lite/kexec-lite.mk

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+20 −0
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################################################################################

#

# kexec-lite

#

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



KEXEC_LITE_VERSION = fb8543fea3beb0522b5a63a74ea1a845dbd7b954

KEXEC_LITE_SITE = $(call github,antonblanchard,kexec-lite,$(KEXEC_LITE_VERSION))

KEXEC_LITE_LICENSE = GPLv2+

KEXEC_LITE_DEPENDENCIES = libelf dtc



define KEXEC_LITE_BUILD_CMDS

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

endef



define KEXEC_LITE_INSTALL_TARGET_CMDS

	$(INSTALL) -D -m 755 $(@D)/kexec $(TARGET_DIR)/usr/sbin/kexec

endef



$(eval $(generic-package))