From 8937e897181a411f73faf4da83c452c7b0732929 Mon Sep 17 00:00:00 2001 From: James Hogan Date: Wed, 6 Feb 2013 12:56:59 +0000 Subject: depmod: pass -P $CONFIG_SYMBOL_PREFIX On architectures which have symbol prefixes, depmod emits lots of warnings like this: WARNING: $module.ko needs unknown symbol $symbol This is because depmod isn't being passed the -P arguments to specify the symbol prefix to ignore. This option is included since the 3.13 release of module-init-tools. Update scripts/depmod.sh to take extra arguments for the symbol prefix (required but may be empty), and update the main Makefile to always pass "$(CONFIG_SYMBOL_PREFIX)" to scripts/depmod.sh. If the provided symbol prefix is non-empty, scripts/depmod.sh checks if depmod --version reports module-init-tools with a version number < 3.13 otherwise it appends -P $SYMBOL_PREFIX to the depmod command line. Signed-off-by: James Hogan Cc: Michal Marek Cc: linux-kbuild@vger.kernel.org Cc: Mike Frysinger Cc: Yoshinori Sato Cc: uclinux-dist-devel@blackfin.uclinux.org Signed-off-by: Michal Marek --- scripts/depmod.sh | 26 +++++++++++++++++++++++--- 1 file changed, 23 insertions(+), 3 deletions(-) (limited to 'scripts/depmod.sh') diff --git a/scripts/depmod.sh b/scripts/depmod.sh index 2ae481703141..122599b1c13b 100755 --- a/scripts/depmod.sh +++ b/scripts/depmod.sh @@ -2,16 +2,36 @@ # # A depmod wrapper used by the toplevel Makefile -if test $# -ne 2; then - echo "Usage: $0 /sbin/depmod " >&2 +if test $# -ne 3; then + echo "Usage: $0 /sbin/depmod " >&2 exit 1 fi DEPMOD=$1 KERNELRELEASE=$2 +SYMBOL_PREFIX=$3 if ! test -r System.map -a -x "$DEPMOD"; then exit 0 fi + +# older versions of depmod don't support -P +# support was added in module-init-tools 3.13 +if test -n "$SYMBOL_PREFIX"; then + release=$("$DEPMOD" --version) + package=$(echo "$release" | cut -d' ' -f 1) + if test "$package" = "module-init-tools"; then + version=$(echo "$release" | cut -d' ' -f 2) + later=$(printf '%s\n' "$version" "3.13" | sort -V | tail -n 1) + if test "$later" != "$version"; then + # module-init-tools < 3.13, drop the symbol prefix + SYMBOL_PREFIX="" + fi + fi + if test -n "$SYMBOL_PREFIX"; then + SYMBOL_PREFIX="-P $SYMBOL_PREFIX" + fi +fi + # older versions of depmod require the version string to start with three # numbers, so we cheat with a symlink here depmod_hack_needed=true @@ -34,7 +54,7 @@ set -- -ae -F System.map if test -n "$INSTALL_MOD_PATH"; then set -- "$@" -b "$INSTALL_MOD_PATH" fi -"$DEPMOD" "$@" "$KERNELRELEASE" +"$DEPMOD" "$@" "$KERNELRELEASE" $SYMBOL_PREFIX ret=$? if $depmod_hack_needed; then -- cgit v1.2.3