mips64el kernel changes (untested).

Have builtin USB storage support to enable booting the system from USB
disks without initramfs (which would be very slow to load with PMON).

Don't require mkinitcpio (issue #230).

Install also an uncompressed kernel, oprofile needs it.

2 files changed, 26 insertions, 9 deletions

diff --git a/libre/linux-libre/PKGBUILD b/libre/linux-libre/PKGBUILD
index d09c44a5d..f31815bb3 100644
--- a/libre/linux-libre/PKGBUILD
+++ b/libre/linux-libre/PKGBUILD
@@ -93,12 +93,16 @@ build() {
     patch -Np1 -i ${srcdir}/${_basekernel}*-*-loongson-community.patch
     patch -Np0 -i lxo-config.patch
 
-# ensure N32, add localversion and remove uevent helper as per
+# ensure N32, add localversion, remove uevent helper as per
 # https://git.kernel.org/?p=linux/hotplug/udev.git;a=blob_plain;f=README
-    sed -i -e "s|CONFIG_MIPS32_N32=.*|CONFIG_MIPS32_N32=y|g" \
+# and make USB storage support builtin (e.g. for booting from USB
+# disks without slowly loading an initramfs)
+    sed -ri -e "s|CONFIG_MIPS32_N32=.*|CONFIG_MIPS32_N32=y|g" \
         -e "s|CONFIG_MIPS32_N32=.*|CONFIG_MIPS32_N32=y|g" \
         -e "s|CONFIG_UEVENT_HELPER_PATH=.*|CONFIG_UEVENT_HELPER_PATH=\"\"|g" \
-        -e "s|CONFIG_LOCALVERSION=.*|CONFIG_LOCALVERSION=\"-LIBRE\"|g" ./.config
+        -e "s|CONFIG_LOCALVERSION=.*|CONFIG_LOCALVERSION=\"-LIBRE\"|g" \
+        -e "s|(CONFIG_USB(_COMMON|_EHCI_HCD|_OHCI_HCD|_STORAGE.*|_UAS)?)=.*|\1=y|g"
+        ./.config
   else
     cat "${srcdir}/config.${CARCH}" > ./.config # simpler
   fi
@@ -132,7 +136,9 @@ build() {
 
   # build!
   if [ "$CARCH" == "mips64el" ]; then
-    make ${MAKEFLAGS} vmlinuz modules
+    # bzImage is arch-specific and not supported on mips; vmlinux is
+    # useful for oprofile.
+    make ${MAKEFLAGS} vmlinux vmlinuz modules
   else
     make ${MAKEFLAGS} bzImage modules
   fi
@@ -141,13 +147,19 @@ build() {
 package_linux-libre() {
   pkgdesc="The Linux-libre Kernel and modules"
   groups=('base')
-  depends=('coreutils' 'module-init-tools>=3.16' 'mkinitcpio>=0.7')
+  depends=('coreutils' 'module-init-tools>=3.16')
   optdepends=('crda: to set the correct wireless channels of your country')
   provides=('kernel26' "linux=$pkgver")
   conflicts=('kernel26' 'kernel26-libre' 'linux')
   replaces=('kernel26' 'kernel26-libre' 'linux')
   backup=("etc/mkinitcpio.d/${pkgname}.preset")
   install=${pkgname}.install
+  if [ "$CARCH" = "mips64el" ]; then
+      optdepends+=('mkinitcpio: to make the initramfs (needs reinstall of this package)')
+      conflicts+=('mkinitcpio<0.7')
+  else
+      depends+=('mkinitcpio>=0.7')
+  fi
 
   cd "${srcdir}/linux-${_basekernel}"
 
@@ -162,6 +174,7 @@ package_linux-libre() {
 
   if [ "$CARCH" == "mips64el" ]; then
     cp vmlinuz "${pkgdir}/boot/vmlinuz-${pkgname}"
+    cp vmlinux "${pkgdir}/boot/vmlinux-${pkgname}"
   else
     cp "arch/${KARCH}/boot/bzImage" "${pkgdir}/boot/vmlinuz-${pkgname}"
   fi
diff --git a/libre/linux-libre/linux-libre.install b/libre/linux-libre/linux-libre.install
index f05e87b9f..62f5d13bc 100644
--- a/libre/linux-libre/linux-libre.install
+++ b/libre/linux-libre/linux-libre.install
@@ -8,8 +8,10 @@ post_install () {
   # updating module dependencies
   echo ">>> Updating module dependencies. Please wait ..."
   depmod ${KERNEL_VERSION}
-  echo ">>> Generating initial ramdisk, using mkinitcpio.  Please wait..."
-  mkinitcpio -p linux-libre${KERNEL_NAME}
+  if [ command -v mkinitcpio 2>&1 > /dev/null ]; then
+    echo ">>> Generating initial ramdisk, using mkinitcpio.  Please wait..."
+    mkinitcpio -p linux-libre${KERNEL_NAME}
+  fi
 
   # compat symlinks for the official kernels only
   if [ -z "${KERNEL_NAME}" -o "${KERNEL_NAME}" = "-lts" ]; then
@@ -50,8 +52,10 @@ post_upgrade() {
   # updating module dependencies
   echo ">>> Updating module dependencies. Please wait ..."
   depmod ${KERNEL_VERSION}
-  echo ">>> Generating initial ramdisk, using mkinitcpio.  Please wait..."
-  mkinitcpio -p linux-libre${KERNEL_NAME}
+  if [ command -v mkinitcpio 2>&1 > /dev/null ]; then
+    echo ">>> Generating initial ramdisk, using mkinitcpio.  Please wait..."
+    mkinitcpio -p linux-libre${KERNEL_NAME}
+  fi
 }
 
 post_remove() {