From 3182b56e35e1a07c920ebded54fc55686ced99bf Mon Sep 17 00:00:00 2001
From: "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
Date: Wed, 11 Nov 2020 07:55:00 -0500
Subject: revamp module support, other refactoring

---
 make | 61 ++++++-------------------------------------------------------
 1 file changed, 6 insertions(+), 55 deletions(-)

(limited to 'make')

diff --git a/make b/make
index 9ce479c..461043f 100755
--- a/make
+++ b/make
@@ -1,9 +1,5 @@
 #!/bin/sh
 
-#[ -n "$compressor" ] || compressor="lz4 --best --favor-decSpeed -l"
-[ -n "$compressor" ] || compressor="zstd -19 -c -T0"
-#[ -n "$compressor" ] || compressor="xz -c --check=crc32 --x86 --lzma2=preset=9e"
-
 toppid=$$
 die() {
     fmt=$1
@@ -21,77 +17,32 @@ gen_cmd() {
     # ignore builtins
     [ "$cmd" != "$cmdp" ] || return
     printf 'file %s %s 0755 0 0\n' "$cmdp" "$cmdp"
-    ldd "$cmdp" | grep / | while read line; do
-        tmp=${line% *}
-        lib=/${tmp#*/}
-        # don't bother with ld.so.conf
-        printf 'file /lib64/%s %s 0755 0 0\n' "${lib##*/}" "$lib"
-    done
+    ldd "$cmdp" | awk '/\// { if ($1~/^\//) file=$1; else file=$3; print "file " file " " file " 0755 0 0" }'
 }
 
 # generate the main file list
 gen_cpio_list() {
     sed -e '/^#/d' cpio_list.txt
-    while read insmod mod args; do
-        if [ "$insmod" = insmod ]; then
-            printf 'file %s %s 0644 0 0\n' "$mod" "$mod"
-        fi
-    done < modules.sh
+    tr ' ' '\n' < modules.dep | sed -e "s/://;s:.*:file /lib/modules/$KERNVER/& /lib/modules/$KERNVER/& 0644 0 0:"
     gen_cmd e2fsck
     gen_cmd dropbear
-    # cryptsetup argon2 uses pthread_cancel, glibc dlopens libgcc_s.so.1
-    # ldd will find the correct libgcc_s.so.1 based on ld.so.conf
-    export LD_PRELOAD=libgcc_s.so.1
     gen_cmd cryptsetup
-    # LD_PRELOAD unset at end of subshell
+    ldconfig -p | awk '$1 == "libgcc_s.so.1" { print "file " $4 " " $4 " 0755 0 0" }'
 }
 
 # filter the list and insert parent directory entries
 gen_dir_ents() {
-    while read type target args; do
-        # re-print the original entry
-        printf '%s %s %s\n' "$type" "$target" "$args"
-        # print the necessary directory entries. duplicates will be
-        # filtered by sort -u later
-        while [ "${target%/*}" != '' ]; do
-            target=${target%/*}
-            printf 'dir %s 0755 0 0\n' "$target"
-        done
-    done
+    awk '{print; while (sub("/[^/]*$", "", $2) && $2) print "dir " $2 " 0755 0 0"; }'
 }
 
 # filter the list and generate the make dependency file
 gen_depfile() {
     deps='cpio_list.txt make'
-    while read type target source args; do
-        # re-print the original entry
-        printf '%s %s %s %s\n' "$type" "$target" "$source" "$args"
-        # accumulate the dependencies in a list to avoid make bugs.
-        # there will be no duplicates since the list was previously sorted
-        if [ "$type" != file ]; then
-            continue
-        fi
-        case "$source" in
-            /dev/*) continue
-        esac
-        deps="$deps $source"
-        # avoid "No rule to make target" when deps disappear
-        echo "$source:" >&3
-    done
-    echo "initramfs.img: $deps" >&3
+    awk -v d=/dev/fd/3 '$1 == "file" {print; deps=deps " " $3; print $3 ":" > d; } END { print "initramfs.img:" deps > d }'
 }
 
 if ! [ -e cpio_list.txt ] || ! [ -e gen_init_cpio ]; then
     cd "${0%/*}"
 fi
 
-trap 'test -L initramfs.img || test -f initramfs.img && rm -f initramfs.img; exit 1' HUP INT QUIT TERM EXIT
-
-gen_cpio_list | \
-gen_dir_ents | \
-sort -u | \
-gen_depfile 3>initramfs.d | \
-./gen_init_cpio -t 0 - | \
-$compressor > initramfs.img
-
-trap '' EXIT
+gen_cpio_list | gen_dir_ents | sort -u | gen_depfile 3>initramfs.d | ./gen_init_cpio -t 0 - | $COMPRESSOR > initramfs.img
-- 
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