core/linux PKGBUILD patch for building debuginfo package

linux-systemtap.patch

diff -ur linux.orig/PKGBUILD linux/PKGBUILD
--- linux.orig/PKGBUILD	2012-08-28 21:53:04.757568936 +0400
+++ linux/PKGBUILD	2012-08-28 22:05:23.470891452 +0400
@@ -24,8 +24,8 @@
         'i915-i2c-crash-3.5.x.patch')
 md5sums=('24153eaaa81dedc9481ada8cd9c3b83d'
          '01e0536109d2a06b1701b5051edfcea2'
-         '4eb50449b069bd699d92a290dce76d00'
-         '74c0ce9291ad8aaf26546fe85a1a7d18'
+         'f2abe8d7f67936cc0cc8fc50a8d5dcf0'
+         'ab1872774f43493dabb6e12ef763f5b7'
          'eb14dcfd80c00852ef81ded6e826826a'
          '9d3c56a4b999c8bfbd4018089a62f662'
          'c1d58e712112cf8f95e7831012a1e67a'
@@ -134,6 +134,7 @@
 
   # add vmlinux
   install -D -m644 vmlinux "${pkgdir}/usr/src/linux-${_kernver}/vmlinux"
+  objcopy --strip-debug "${pkgdir}/usr/src/linux-${_kernver}/vmlinux"
 
   # install fallback mkinitcpio.conf file and preset file for kernel
   install -D -m644 "${srcdir}/linux.preset" "${pkgdir}/etc/mkinitcpio.d/${pkgbase}.preset"
@@ -155,7 +156,7 @@
   # remove the firmware
   rm -rf "${pkgdir}/lib/firmware"
   # gzip -9 all modules to save 100MB of space
-  find "${pkgdir}" -name '*.ko' -exec gzip -9 {} \;
+  find "${pkgdir}" -name '*.ko' -exec objcopy --strip-debug {} \; -exec gzip -9 {} \;
   # make room for external modules
   ln -s "../extramodules-${_basekernel}${_kernelname:--ARCH}" "${pkgdir}/lib/modules/${_kernver}/extramodules"
   # add real version for building modules and running depmod from post_install/upgrade
@@ -169,6 +170,39 @@
   depmod -b "$pkgdir" -F System.map "$_kernver"
 }
 
+_package-debuginfo() {
+  pkgdesc="Debug information for the Linux Kernel and modules"
+  depends=('linux')
+
+  cd "${srcdir}/linux-${_basekernel}"
+
+  KARCH=x86
+
+  # get kernel version
+  _kernver="$(make kernelrelease)"
+
+  mkdir -p "${pkgdir}"/usr/lib/debug/lib/modules/"${_kernver}"
+  make INSTALL_MOD_PATH="${pkgdir}"/usr/lib/debug modules_install
+
+  # add vmlinux
+  _kernfile="${pkgdir}/usr/lib/debug/lib/modules/${_kernver}/vmlinux"
+  install -D -m644 vmlinux "${_kernfile}"
+  objcopy --only-keep-debug "${_kernfile}"
+
+  # gzip -9 vmlinux
+  gzip -9 "${_kernfile}"
+  mv "${_kernfile}".gz "${_kernfile}"
+
+  # remove build and source links
+  rm -f "${pkgdir}"/usr/lib/debug/lib/modules/${_kernver}/{source,build,modules.builtin,modules.order}
+
+  # remove the firmware
+  rm -rf "${pkgdir}"/usr/lib/debug/lib/firmware
+
+  # gzip -9 all modules
+  find "${pkgdir}" -name '*.ko' -exec gzip -9 {} \; -exec mv {}.gz {}.gz.debug \;
+}
+
 _package-headers() {
   pkgdesc="Header files and scripts for building modules for ${pkgbase} kernel"
   provides=("kernel26${_kernelname}-headers=${pkgver}")
@@ -317,7 +351,7 @@
   rm -f "${pkgdir}/usr/src/linux-${_kernver}/Documentation/DocBook/Makefile"
 }
 
-pkgname=("${pkgbase}" "${pkgbase}-headers" "${pkgbase}-docs")
+pkgname=("${pkgbase}" "${pkgbase}-debuginfo" "${pkgbase}-headers" "${pkgbase}-docs")
 for _p in ${pkgname[@]}; do
   eval "package_${_p}() {
     _package${_p#${pkgbase}}
diff -ur linux.orig/config linux/config
--- linux.orig/config	2012-08-28 21:53:04.757568936 +0400
+++ linux/config	2012-08-28 22:04:59.507558470 +0400
@@ -5620,7 +5620,8 @@
 # CONFIG_DEBUG_KOBJECT is not set
 # CONFIG_DEBUG_HIGHMEM is not set
 CONFIG_DEBUG_BUGVERBOSE=y
-# CONFIG_DEBUG_INFO is not set
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_INFO_REDUCED=n
 # CONFIG_DEBUG_VM is not set
 # CONFIG_DEBUG_VIRTUAL is not set
 # CONFIG_DEBUG_WRITECOUNT is not set
diff -ur linux.orig/config.x86_64 linux/config.x86_64
--- linux.orig/config.x86_64	2012-08-28 21:53:04.760902270 +0400
+++ linux/config.x86_64	2012-08-28 22:05:06.900891696 +0400
@@ -5389,7 +5389,8 @@
 # CONFIG_DEBUG_STACK_USAGE is not set
 # CONFIG_DEBUG_KOBJECT is not set
 CONFIG_DEBUG_BUGVERBOSE=y
-# CONFIG_DEBUG_INFO is not set
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_INFO_REDUCED=n
 # CONFIG_DEBUG_VM is not set
 # CONFIG_DEBUG_VIRTUAL is not set
 # CONFIG_DEBUG_WRITECOUNT is not set