From 4f2ef4a836be37b25808c94f41c7c85895db6f93 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Thu, 1 Nov 2018 09:53:25 +0100 Subject: ash: allow shell scripts to be embedded in the binary To assist in the deployment of shell scripts it may be convenient to embed them in the BusyBox binary. 'Embed scripts in the binary' takes any files in the directory 'embed', concatenates them with null separators, compresses them and embeds them in the binary. When scripts are embedded in the binary, scripts can be run as 'busybox SCRIPT [ARGS]' or by usual (sym)link mechanism. embed/nologin is provided as an example. function old new delta packed_scripts - 123 +123 unpack_scripts - 87 +87 ash_main 1103 1171 +68 run_applet_and_exit 78 128 +50 get_script_content - 32 +32 script_names - 10 +10 expmeta 663 659 -4 ------------------------------------------------------------------------------ (add/remove: 4/0 grow/shrink: 2/1 up/down: 370/-4) Total: 366 bytes Signed-off-by: Ron Yorston Signed-off-by: Denys Vlasenko --- Makefile | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'Makefile') diff --git a/Makefile b/Makefile index 59ec83a6a..8a0dbdf49 100644 --- a/Makefile +++ b/Makefile @@ -850,11 +850,14 @@ quiet_cmd_gen_common_bufsiz = GEN include/common_bufsiz.h cmd_gen_common_bufsiz = $(srctree)/scripts/generate_BUFSIZ.sh include/common_bufsiz.h quiet_cmd_split_autoconf = SPLIT include/autoconf.h -> include/config/* cmd_split_autoconf = scripts/basic/split-include include/autoconf.h include/config +quiet_cmd_gen_embedded_scripts = GEN include/embedded_scripts.h + cmd_gen_embedded_scripts = scripts/embedded_scripts include/embedded_scripts.h embed #bbox# piggybacked generation of few .h files -include/config/MARKER: scripts/basic/split-include include/autoconf.h +include/config/MARKER: scripts/basic/split-include include/autoconf.h $(wildcard embed/*) scripts/embedded_scripts $(call cmd,split_autoconf) $(call cmd,gen_bbconfigopts) $(call cmd,gen_common_bufsiz) + $(call cmd,gen_embedded_scripts) @touch $@ # Generate some files @@ -974,6 +977,7 @@ MRPROPER_FILES += .config .config.old include/asm .version .old_version \ include/autoconf.h \ include/bbconfigopts.h \ include/bbconfigopts_bz2.h \ + include/embedded_scripts.h \ include/usage_compressed.h \ include/applet_tables.h \ include/applets.h \ -- cgit v1.2.3