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[patch] README: add help for users building their own kernels
- From: Chuck Ebbert <76306 dot 1226 at compuserve dot com>
- To: systemtap <systemtap at sourceware dot org>
- Date: Mon, 12 Jun 2006 20:31:36 -0400
- Subject: [patch] README: add help for users building their own kernels
Add help for users who build kernels from kernel.org.
README | 29 ++++++++++++++++++++++++++++-
1 files changed, 28 insertions(+), 1 deletion(-)
--- systemtap-20060610.orig/README
+++ systemtap-20060610/README
@@ -25,7 +25,8 @@ Installation steps:
Build steps:
-- Install the kernel-debuginfo, kernel-[smp-]devel, gcc packages.
+- Install the kernel-debuginfo, kernel-[smp-]devel, gcc packages
+ (or see below if you are building your own kernels from source.)
- Download the latest elfutils snapshot
ftp://sources.redhat.com/pub/systemtap/elfutils/elfutils-NNNN.tar.gz
ftp://sources.redhat.com/pub/systemtap/elfutils/elfutils-portability.patch
@@ -48,3 +49,29 @@ Tips :
/boot/vmlinux-`uname -r`
/usr/lib/debug/lib/modules/`uname -r`/vmlinux
/lib/modules/`uname -r`/vmlinux
+
+- If you are using generic kernel.org kernels built from source,
+ you do not need kernel-debuginfo or kernel-[smp-]devel.
+ Instead, you can do this:
+
+ - Build the kernel using your normal procedures. You need to enable
+ CONFIG_DEBUG_INFO and CONFIG_RELAY.
+ - Boot into the kernel you plan to use.
+ - Make sure the file 'vmlinux' from your build can be found by
+ systemtap (see above.) You can just symlink it to one of the above
+ locations.
+ - symlink your source directory to these two places:
+ - /usr/src/kernels/`uname -r`
+ - /lib/modules/`uname -r`/source
+ - symlink your build directory to here:
+ - /lib/modules/`uname -r`/build
+ - For example, if your kernel source is in /home/me/linux/2.6.17-rc6
+ and you build your kernel in the source directory, you would do
+ this (be sure you are running the right kernel or `uname -r`
+ will be wrong:)
+ ln -s /home/me/linux/2.6.17-rc6/vmlinux /boot/vmlinux-`uname -r`
+ mkdir /usr/src/kernels (if needed)
+ ln -s /home/me/linux/2.6.17-rc6 /usr/src/kernels/`uname -r`
+ mkdir /lib/modules/`uname -r` (if needed)
+ ln -s /home/me/linux/2.6.17-rc6 /lib/modules/`uname -r`/build
+ ln -s /home/me/linux/2.6.17-rc6 /lib/modules/`uname -r`/source
--
Chuck