From 8602e0ef80ecb67816746b26cd0fecfe2acf25bc Mon Sep 17 00:00:00 2001 From: Denis Vlasenko Date: Sun, 27 Apr 2008 23:10:00 +0000 Subject: build system: improve install_headers. Now it uses dedicated script instead of inline makefile commands, which helps readability. It also installs asm[-generic] and linux subdirs from kernel headers (previously it had to be done separately). Lastly, it passes each uclibc header thru unifdef, which strips #ifdef UCLIBC_INTERNAL conditional from headers. Currently it's a no-op (no such #ifders in tree). The plan is to have libc_hidden_proto(foo) migrated to headers and guard them by these #ifdefs. --- extra/scripts/install_headers.sh | 86 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100755 extra/scripts/install_headers.sh (limited to 'extra/scripts/install_headers.sh') diff --git a/extra/scripts/install_headers.sh b/extra/scripts/install_headers.sh new file mode 100755 index 000000000..5f57695cb --- /dev/null +++ b/extra/scripts/install_headers.sh @@ -0,0 +1,86 @@ +#!/bin/sh +# Parameters: +# $1 = source dir +# $2 = dst dir +# $top_builddir = well you guessed it + +die_if_not_dir() +{ + for dir in "$@"; do + test -d "$dir" && continue + echo "Error: '$dir' is not a directory" + exit 1 + done +} + + +# Ensure that created dirs/files have 755/644 perms +umask 022 + + +# Sanity tests +die_if_not_dir "$1" +mkdir -p "$2" 2>/dev/null +die_if_not_dir "$2" +die_if_not_dir "$top_builddir" +if ! test -x "$top_builddir/extra/scripts/unifdef"; then + echo "Error: need '$top_builddir/extra/scripts/unifdef' executable" + exit 1 +fi + + +# Sanitize and copy uclibc headers +( +# We must cd, or else we'll prepend "$1" to filenames! +cd "$1" || exit 1 +find ! -name '.' -a ! -path '*/.*' +) | \ +( +IFS='' +while read -r filename; do + filename="${filename#./}" + if test -d "$1/$filename"; then + mkdir -p "$2/$filename" 2>/dev/null + else + "$top_builddir/extra/scripts/unifdef" -UUCLIBC_INTERNAL "$1/$filename" >"$2/$filename" || exit + fi +done +) + + +# Just copy (no sanitization) some kernel headers. +eval `grep ^KERNEL_HEADERS "$top_builddir/.config"` +if ! test -d "$KERNEL_HEADERS/asm" \ +|| ! test -d "$KERNEL_HEADERS/asm-generic" \ +|| ! test -d "$KERNEL_HEADERS/linux" \ +; then + echo "Error: '$KERNEL_HEADERS' is not a directory containing kernel headers." + echo "Check KERNEL_HEADERS= in your .config file." + exit 1 +fi +# NB: source or target files and directories may be symlinks, +# and for all we know, good reasons. +# We must work correctly in these cases. This includes "do not replace +# target symlink with real directory" rule. So, no rm -rf here please. +mkdir -p "$2/asm" 2>/dev/null +mkdir -p "$2/asm-generic" 2>/dev/null +mkdir -p "$2/linux" 2>/dev/null +# Exists, but is not a dir? That's bad, bail out +die_if_not_dir "$2/asm" "$2/asm-generic" "$2/linux" +# cp -HL creates regular destination files even if sources are symlinks. +# This is intended. +# (NB: you need busybox 1.11.x for this. earlier ones are slightly buggy) +cp -RHL "$KERNEL_HEADERS/asm"/* "$2/asm" || exit 1 +cp -RHL "$KERNEL_HEADERS/asm-generic"/* "$2/asm-generic" || exit 1 +cp -RHL "$KERNEL_HEADERS/linux"/* "$2/linux" || exit 1 +if ! test -f "$2/linux/version.h"; then + echo "Warning: '$KERNEL_HEADERS/linux/version.h' is not found" + echo "in kernel headers directory specified in .config." + echo "Some programs won't like that. Consider fixing it by hand." +fi + + +# Fix mode/owner bits +cd "$2" || exit 1 +chmod -R u=rwX,go=rX . >/dev/null 2>&1 +chown -R `id | sed 's/^uid=\([0-9]*\).*gid=\([0-9]*\).*$/\1:\2/'` . >/dev/null 2>&1 -- cgit v1.2.3