blob: 9f288c141a6bb7d0b939a1b83fdd770fa010f0f9 [file] [log] [blame]
Denis Vlasenko7d219aa2006-10-05 10:17:08 +00001#!/bin/sh
2
3debug=false
4
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +00005# Linker flags used:
6#
7# Informational:
8# --warn-common
9# -Map $EXE.map
10# --verbose
11#
12# Optimizations:
13# --sort-common reduces padding
14# --sort-section alignment reduces padding
15# --gc-sections throws out unused sections,
16# does not work for shared libs
Denis Vlasenko42e41822007-10-09 18:01:13 +000017# -On Not used, maybe useful?
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +000018#
19# List of files to link:
20# $l_list == --start-group -llib1 -llib2 --end-group
21# --start-group $O_FILES $A_FILES --end-group
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +000022#
23# Shared library link:
24# -shared self-explanatory
25# -fPIC position-independent code
Denis Vlasenko724d1962007-10-10 14:41:07 +000026# --enable-new-dtags ?
27# -z,combreloc ?
28# -soname="libbusybox.so.$BB_VER"
Denis Vlasenko9b49a5e2007-10-11 10:05:36 +000029# --undefined=lbb_main Seed name to start pulling from
Denis Vlasenko724d1962007-10-10 14:41:07 +000030# (otherwise we'll need --whole-archive)
31# -static Not used, but may be useful! manpage:
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +000032# "... This option can be used with -shared.
33# Doing so means that a shared library
34# is being created but that all of the library's
35# external references must be resolved by pulling
36# in entries from static libraries."
37
38
Denis Vlasenko018e0852007-02-25 00:40:37 +000039try() {
Denis Vlasenko32404742007-10-07 17:05:22 +000040 printf "%s\n" "Output of:" >$EXE.out
41 printf "%s\n" "$*" >>$EXE.out
42 printf "%s\n" "==========" >>$EXE.out
43 $debug && echo "Trying: $*"
Bernhard Reutner-Fischer2dfd2952008-10-23 13:49:21 +000044 $@ >>$EXE.out 2>&1
45 return $?
Denis Vlasenko7d219aa2006-10-05 10:17:08 +000046}
47
Denis Vlasenko130f5592007-11-13 17:36:12 +000048check_cc() {
Denys Vlasenkobca4ea82017-01-24 20:52:42 +010049 tempname="$(mktemp tmp.XXXXXXXXXX)"
Denys Vlasenko51340102015-10-20 16:16:16 +020050 echo "int main(int argc,char**argv){return argv?argc:0;}" >"$tempname".c
Denis Vlasenko0a4624a2008-02-13 07:47:37 +000051 # Can use "-o /dev/null", but older gcc tend to *unlink it* on failure! :(
Denys Vlasenko51340102015-10-20 16:16:16 +020052 # Was using "-xc /dev/null", but we need a valid C program.
Denys Vlasenkoedcd5dc2015-10-20 18:15:01 +020053 # "eval" may be needed if CFLAGS can contain
Denys Vlasenko51340102015-10-20 16:16:16 +020054 # '... -D"BB_VER=KBUILD_STR(1.N.M)" ...'
55 # and we need shell to process quotes!
Mike Frysinger77e2bde2015-12-01 11:25:10 -050056 $CC $CFLAGS $LDFLAGS $1 "$tempname".c -o "$tempname" >/dev/null 2>&1
Denys Vlasenkobca4ea82017-01-24 20:52:42 +010057 exitcode=$?
Denys Vlasenko51340102015-10-20 16:16:16 +020058 rm -f "$tempname" "$tempname".c "$tempname".o
Denys Vlasenkobca4ea82017-01-24 20:52:42 +010059 return $exitcode
Denis Vlasenko130f5592007-11-13 17:36:12 +000060}
61
Denis Vlasenko3f9c8482007-12-28 17:04:42 +000062check_libc_is_glibc() {
Denys Vlasenkobca4ea82017-01-24 20:52:42 +010063 tempname="$(mktemp tmp.XXXXXXXXXX)"
Denis Vlasenko3f9c8482007-12-28 17:04:42 +000064 echo "\
65 #include <stdlib.h>
66 /* Apparently uclibc defines __GLIBC__ (compat trick?). Oh well. */
67 #if defined(__GLIBC__) && !defined(__UCLIBC__)
68 syntax error here
69 #endif
Denis Vlasenkoa2dcb502008-04-30 00:15:56 +000070 " >"$tempname".c
Denys Vlasenko58d0e202015-10-20 16:40:43 +020071 ! $CC $CFLAGS "$tempname".c -c -o "$tempname".o >/dev/null 2>&1
Denys Vlasenkobca4ea82017-01-24 20:52:42 +010072 exitcode=$?
Denys Vlasenko51340102015-10-20 16:16:16 +020073 rm -f "$tempname" "$tempname".c "$tempname".o
Denys Vlasenkobca4ea82017-01-24 20:52:42 +010074 return $exitcode
Denis Vlasenko3f9c8482007-12-28 17:04:42 +000075}
76
Denis Vlasenko32404742007-10-07 17:05:22 +000077EXE="$1"
78CC="$2"
Denis Vlasenkof1d93ec2008-02-14 12:24:14 +000079CFLAGS="$3"
80LDFLAGS="$4"
81O_FILES="$5"
82A_FILES="$6"
83LDLIBS="$7"
Denis Vlasenko32404742007-10-07 17:05:22 +000084
Denis Vlasenkoa2dcb502008-04-30 00:15:56 +000085# The --sort-section option is not supported by older versions of ld
Denys Vlasenko51340102015-10-20 16:16:16 +020086SORT_SECTION="-Wl,--sort-section,alignment"
87if ! check_cc "-Wl,--sort-section,alignment"; then
88 echo "Your linker does not support --sort-section,alignment"
89 SORT_SECTION=""
90fi
Denis Vlasenko130f5592007-11-13 17:36:12 +000091
Dan Fandrichebeac162010-06-18 22:36:10 -070092START_GROUP="-Wl,--start-group"
93END_GROUP="-Wl,--end-group"
Dan Fandrichebeac162010-06-18 22:36:10 -070094INFO_OPTS="-Wl,--warn-common -Wl,-Map,$EXE.map -Wl,--verbose"
95
Bernhard Reutner-Fischera88585a2010-05-21 12:11:34 +020096# gold may not support --sort-common (yet)
Denys Vlasenko51340102015-10-20 16:16:16 +020097SORT_COMMON="-Wl,--sort-common"
98if ! check_cc "-Wl,--sort-common"; then
99 echo "Your linker does not support --sort-common"
100 SORT_COMMON=""
101fi
Bernhard Reutner-Fischera88585a2010-05-21 12:11:34 +0200102
Denis Vlasenko3f9c8482007-12-28 17:04:42 +0000103# Static linking against glibc produces buggy executables
104# (glibc does not cope well with ld --gc-sections).
105# See sources.redhat.com/bugzilla/show_bug.cgi?id=3400
106# Note that glibc is unsuitable for static linking anyway.
107# We are removing -Wl,--gc-sections from link command line.
Denys Vlasenko51340102015-10-20 16:16:16 +0200108GC_SECTIONS="-Wl,--gc-sections"
109if (. ./.config && test x"$CONFIG_STATIC" = x"y") then
110 if check_libc_is_glibc; then
111 echo "Static linking against glibc, can't use --gc-sections"
112 GC_SECTIONS=""
113 fi
Denis Vlasenko3f9c8482007-12-28 17:04:42 +0000114fi
Denys Vlasenkoeb1cda22009-06-27 00:24:35 +0200115# The --gc-sections option is not supported by older versions of ld
116if test -n "$GC_SECTIONS"; then
Denys Vlasenko51340102015-10-20 16:16:16 +0200117 if ! check_cc "$GC_SECTIONS"; then
118 echo "Your linker does not support $GC_SECTIONS"
119 GC_SECTIONS=""
120 fi
Denys Vlasenkoeb1cda22009-06-27 00:24:35 +0200121fi
122
Denis Vlasenko150d2fa2007-07-17 20:39:27 +0000123# Sanitize lib list (dups, extra spaces etc)
Denis Vlasenko76a6b232007-10-07 17:05:42 +0000124LDLIBS=`echo "$LDLIBS" | xargs -n1 | sort | uniq | xargs`
Denis Vlasenko150d2fa2007-07-17 20:39:27 +0000125
126# First link with all libs. If it fails, bail out
Denis Vlasenko76a6b232007-10-07 17:05:42 +0000127echo "Trying libraries: $LDLIBS"
Denis Vlasenko32404742007-10-07 17:05:22 +0000128# "lib1 lib2 lib3" -> "-llib1 -llib2 -llib3"
Mike Frysinger3eab2b72013-09-12 00:29:40 -0400129l_list=`echo " $LDLIBS " | sed -e 's: \([^- ][^ ]*\): -l\1:g'`
Dan Fandrichebeac162010-06-18 22:36:10 -0700130test "x$l_list" != "x" && l_list="$START_GROUP $l_list $END_GROUP"
Denis Vlasenkof1d93ec2008-02-14 12:24:14 +0000131try $CC $CFLAGS $LDFLAGS \
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +0000132 -o $EXE \
Bernhard Reutner-Fischera88585a2010-05-21 12:11:34 +0200133 $SORT_COMMON \
Denis Vlasenko130f5592007-11-13 17:36:12 +0000134 $SORT_SECTION \
Denis Vlasenkoa2dcb502008-04-30 00:15:56 +0000135 $GC_SECTIONS \
Dan Fandrichebeac162010-06-18 22:36:10 -0700136 $START_GROUP $O_FILES $A_FILES $END_GROUP \
Denis Vlasenko32404742007-10-07 17:05:22 +0000137 $l_list \
Denis Vlasenko150d2fa2007-07-17 20:39:27 +0000138|| {
Denis Vlasenko4824cca2008-03-21 18:29:01 +0000139 echo "Failed: $l_list"
Denis Vlasenko32404742007-10-07 17:05:22 +0000140 cat $EXE.out
Denys Vlasenko056e1f52016-04-03 15:38:53 +0200141 echo 'Note: if build needs additional libraries, put them in CONFIG_EXTRA_LDLIBS.'
142 echo 'Example: CONFIG_EXTRA_LDLIBS="pthread dl tirpc audit pam"'
Denis Vlasenko150d2fa2007-07-17 20:39:27 +0000143 exit 1
144}
Denis Vlasenko6ca409e2007-08-12 20:58:27 +0000145
Denis Vlasenko8274e062007-08-06 03:41:08 +0000146# Now try to remove each lib and build without it.
Denis Vlasenko150d2fa2007-07-17 20:39:27 +0000147# Stop when no lib can be removed.
Denis Vlasenko76a6b232007-10-07 17:05:42 +0000148while test "$LDLIBS"; do
149 $debug && echo "Trying libraries: $LDLIBS"
Denis Vlasenko150d2fa2007-07-17 20:39:27 +0000150 all_needed=true
Denis Vlasenkodd316dd2008-06-14 15:50:55 +0000151 last_needed=false
Denis Vlasenko76a6b232007-10-07 17:05:42 +0000152 for one in $LDLIBS; do
153 without_one=`echo " $LDLIBS " | sed "s/ $one / /g" | xargs`
Denis Vlasenko32404742007-10-07 17:05:22 +0000154 # "lib1 lib2 lib3" -> "-llib1 -llib2 -llib3"
Mike Frysinger3eab2b72013-09-12 00:29:40 -0400155 l_list=`echo " $without_one " | sed -e 's: \([^- ][^ ]*\): -l\1:g'`
Dan Fandrichebeac162010-06-18 22:36:10 -0700156 test x"$l_list" != x"" && l_list="$START_GROUP $l_list $END_GROUP"
Bernhard Reutner-Fischer8d91c132007-09-02 14:51:54 +0000157 $debug && echo "Trying -l options: '$l_list'"
Denis Vlasenkof1d93ec2008-02-14 12:24:14 +0000158 try $CC $CFLAGS $LDFLAGS \
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +0000159 -o $EXE \
Bernhard Reutner-Fischera88585a2010-05-21 12:11:34 +0200160 $SORT_COMMON \
Denis Vlasenko130f5592007-11-13 17:36:12 +0000161 $SORT_SECTION \
Denis Vlasenkoa2dcb502008-04-30 00:15:56 +0000162 $GC_SECTIONS \
Dan Fandrichebeac162010-06-18 22:36:10 -0700163 $START_GROUP $O_FILES $A_FILES $END_GROUP \
Denis Vlasenkod19b87e2007-10-09 13:08:02 +0000164 $l_list
Denis Vlasenko32404742007-10-07 17:05:22 +0000165 if test $? = 0; then
Denis Vlasenkob522d692008-08-26 20:09:08 +0000166 echo " Library $one is not needed, excluding it"
Denis Vlasenko76a6b232007-10-07 17:05:42 +0000167 LDLIBS="$without_one"
Denis Vlasenko32404742007-10-07 17:05:22 +0000168 all_needed=false
Denis Vlasenkodd316dd2008-06-14 15:50:55 +0000169 last_needed=false
Denis Vlasenko150d2fa2007-07-17 20:39:27 +0000170 else
Denis Vlasenkob522d692008-08-26 20:09:08 +0000171 echo " Library $one is needed, can't exclude it (yet)"
Denis Vlasenkodd316dd2008-06-14 15:50:55 +0000172 last_needed=true
Denis Vlasenko150d2fa2007-07-17 20:39:27 +0000173 fi
174 done
175 # All libs were needed, can't remove any
176 $all_needed && break
Denis Vlasenkodd316dd2008-06-14 15:50:55 +0000177 # Optimization: was the last tried lib needed?
178 if $last_needed; then
179 # Was it the only one lib left? Don't test again then.
180 { echo "$LDLIBS" | grep -q ' '; } || break
181 fi
Denis Vlasenko150d2fa2007-07-17 20:39:27 +0000182done
183
Denis Vlasenko9862e6b2007-09-03 11:28:14 +0000184# Make the binary with final, minimal list of libs
Mike Frysinger49d15892007-11-18 06:42:56 +0000185echo "Final link with: ${LDLIBS:-<none>}"
Mike Frysinger3eab2b72013-09-12 00:29:40 -0400186l_list=`echo " $LDLIBS " | sed -e 's: \([^- ][^ ]*\): -l\1:g'`
Dan Fandrichebeac162010-06-18 22:36:10 -0700187test "x$l_list" != "x" && l_list="$START_GROUP $l_list $END_GROUP"
Denis Vlasenko9862e6b2007-09-03 11:28:14 +0000188# --verbose gives us gobs of info to stdout (e.g. linker script used)
189if ! test -f busybox_ldscript; then
Denis Vlasenkof1d93ec2008-02-14 12:24:14 +0000190 try $CC $CFLAGS $LDFLAGS \
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +0000191 -o $EXE \
Bernhard Reutner-Fischera88585a2010-05-21 12:11:34 +0200192 $SORT_COMMON \
Denis Vlasenko130f5592007-11-13 17:36:12 +0000193 $SORT_SECTION \
Denis Vlasenkoa2dcb502008-04-30 00:15:56 +0000194 $GC_SECTIONS \
Dan Fandrichebeac162010-06-18 22:36:10 -0700195 $START_GROUP $O_FILES $A_FILES $END_GROUP \
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +0000196 $l_list \
Dan Fandrichebeac162010-06-18 22:36:10 -0700197 $INFO_OPTS \
Denis Vlasenkod19b87e2007-10-09 13:08:02 +0000198 || {
199 cat $EXE.out
200 exit 1
201 }
Denis Vlasenko9862e6b2007-09-03 11:28:14 +0000202else
203 echo "Custom linker script 'busybox_ldscript' found, using it"
Denis Vlasenko76a6b232007-10-07 17:05:42 +0000204 # Add SORT_BY_ALIGNMENT to linker script (found in $EXE.out):
Denis Vlasenko9862e6b2007-09-03 11:28:14 +0000205 # .rodata : { *(.rodata SORT_BY_ALIGNMENT(.rodata.*) .gnu.linkonce.r.*) }
206 # *(.data SORT_BY_ALIGNMENT(.data.*) .gnu.linkonce.d.*)
207 # *(.bss SORT_BY_ALIGNMENT(.bss.*) .gnu.linkonce.b.*)
Denis Vlasenko76a6b232007-10-07 17:05:42 +0000208 # This will eliminate most of the padding (~3kb).
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +0000209 # Hmm, "ld --sort-section alignment" should do it too.
Denys Vlasenko663d1da2016-04-22 02:00:04 +0200210 #
211 # There is a ld hack which is meant to decrease disk usage
212 # at the cost of more RAM usage (??!!) in standard ld script:
213 # /* Adjust the address for the data segment. We want to adjust up to
214 # the same address within the page on the next page up. */
215 # . = ALIGN (0x1000) - ((0x1000 - .) & (0x1000 - 1)); . = DATA_SEGMENT_ALIGN (0x1000, 0x1000);
216 # Replace it with:
217 # . = ALIGN (0x1000); . = DATA_SEGMENT_ALIGN (0x1000, 0x1000);
218 # to unconditionally align .data to the next page boundary,
219 # instead of "next page, plus current offset in this page"
Denis Vlasenkof1d93ec2008-02-14 12:24:14 +0000220 try $CC $CFLAGS $LDFLAGS \
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +0000221 -o $EXE \
Bernhard Reutner-Fischera88585a2010-05-21 12:11:34 +0200222 $SORT_COMMON \
Denis Vlasenko130f5592007-11-13 17:36:12 +0000223 $SORT_SECTION \
Denis Vlasenkoa2dcb502008-04-30 00:15:56 +0000224 $GC_SECTIONS \
Bernhard Reutner-Fischer50dbed92008-05-09 12:43:04 +0000225 -Wl,-T,busybox_ldscript \
Dan Fandrichebeac162010-06-18 22:36:10 -0700226 $START_GROUP $O_FILES $A_FILES $END_GROUP \
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +0000227 $l_list \
Dan Fandrichebeac162010-06-18 22:36:10 -0700228 $INFO_OPTS \
Denis Vlasenkod19b87e2007-10-09 13:08:02 +0000229 || {
230 cat $EXE.out
231 exit 1
232 }
Denis Vlasenko9862e6b2007-09-03 11:28:14 +0000233fi
Denis Vlasenko32404742007-10-07 17:05:22 +0000234
Denis Vlasenko42e41822007-10-09 18:01:13 +0000235. ./.config
Denis Vlasenko32404742007-10-07 17:05:22 +0000236
Denis Vlasenkodef88982007-10-07 17:06:01 +0000237sharedlib_dir="0_lib"
238
239if test "$CONFIG_BUILD_LIBBUSYBOX" = y; then
240 mkdir "$sharedlib_dir" 2>/dev/null
241 test -d "$sharedlib_dir" || {
242 echo "Cannot make directory $sharedlib_dir"
243 exit 1
244 }
245 ln -s "libbusybox.so.$BB_VER" "$sharedlib_dir"/libbusybox.so 2>/dev/null
246
247 EXE="$sharedlib_dir/libbusybox.so.${BB_VER}_unstripped"
Denis Vlasenkof1d93ec2008-02-14 12:24:14 +0000248 try $CC $CFLAGS $LDFLAGS \
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +0000249 -o $EXE \
250 -shared -fPIC \
251 -Wl,--enable-new-dtags \
252 -Wl,-z,combreloc \
253 -Wl,-soname="libbusybox.so.$BB_VER" \
Denis Vlasenko9b49a5e2007-10-11 10:05:36 +0000254 -Wl,--undefined=lbb_main \
Bernhard Reutner-Fischera88585a2010-05-21 12:11:34 +0200255 $SORT_COMMON \
Denis Vlasenko130f5592007-11-13 17:36:12 +0000256 $SORT_SECTION \
Dan Fandrichebeac162010-06-18 22:36:10 -0700257 $START_GROUP $A_FILES $END_GROUP \
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +0000258 $l_list \
Dan Fandrichebeac162010-06-18 22:36:10 -0700259 $INFO_OPTS \
Denis Vlasenkodef88982007-10-07 17:06:01 +0000260 || {
261 echo "Linking $EXE failed"
262 cat $EXE.out
263 exit 1
264 }
Denis Vlasenko141750e2007-10-10 10:05:35 +0000265 $STRIP -s --remove-section=.note --remove-section=.comment $EXE -o "$sharedlib_dir/libbusybox.so.$BB_VER"
Denis Vlasenkod62fd842007-10-07 20:46:34 +0000266 chmod a+x "$sharedlib_dir/libbusybox.so.$BB_VER"
Denis Vlasenkodef88982007-10-07 17:06:01 +0000267 echo "libbusybox: $sharedlib_dir/libbusybox.so.$BB_VER"
268fi
Denis Vlasenko32404742007-10-07 17:05:22 +0000269
Denis Vlasenkodef88982007-10-07 17:06:01 +0000270if test "$CONFIG_FEATURE_SHARED_BUSYBOX" = y; then
271 EXE="$sharedlib_dir/busybox_unstripped"
Denis Vlasenkof1d93ec2008-02-14 12:24:14 +0000272 try $CC $CFLAGS $LDFLAGS \
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +0000273 -o $EXE \
Bernhard Reutner-Fischera88585a2010-05-21 12:11:34 +0200274 $SORT_COMMON \
Denis Vlasenko130f5592007-11-13 17:36:12 +0000275 $SORT_SECTION \
Denis Vlasenkoa2dcb502008-04-30 00:15:56 +0000276 $GC_SECTIONS \
Dan Fandrichebeac162010-06-18 22:36:10 -0700277 $START_GROUP $O_FILES $END_GROUP \
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +0000278 -L"$sharedlib_dir" -lbusybox \
Steve Iribarneed607a82011-05-09 01:42:12 +0200279 $l_list \
Dan Fandrichebeac162010-06-18 22:36:10 -0700280 $INFO_OPTS \
Denis Vlasenkodef88982007-10-07 17:06:01 +0000281 || {
282 echo "Linking $EXE failed"
283 cat $EXE.out
284 exit 1
285 }
Denis Vlasenko141750e2007-10-10 10:05:35 +0000286 $STRIP -s --remove-section=.note --remove-section=.comment $EXE -o "$sharedlib_dir/busybox"
Denis Vlasenkodef88982007-10-07 17:06:01 +0000287 echo "busybox linked against libbusybox: $sharedlib_dir/busybox"
288fi
Denis Vlasenkof545be02007-10-07 17:06:26 +0000289
290if test "$CONFIG_FEATURE_INDIVIDUAL" = y; then
Denis Vlasenkoe9fd69c2007-10-08 22:16:14 +0000291 echo "Linking individual applets against libbusybox (see $sharedlib_dir/*)"
Denys Vlasenko5fd3ddf2014-04-19 15:04:39 +0200292 gcc -DNAME_MAIN -E -include include/autoconf.h include/applets.h \
Denis Vlasenkof545be02007-10-07 17:06:26 +0000293 | grep -v "^#" \
Denys Vlasenkoea9ebc02016-06-20 12:23:35 +0200294 | grep -v "^ *$" \
Denis Vlasenkoe9fd69c2007-10-08 22:16:14 +0000295 > applet_lst.tmp
Denis Vlasenko642a52d2007-10-07 21:00:41 +0000296 while read name main junk; do
Denis Vlasenkof545be02007-10-07 17:06:26 +0000297
298 echo "\
Denis Vlasenko15cb4a42007-10-11 10:06:26 +0000299void lbb_prepare(const char *applet, char **argv);
Denis Vlasenkod62fd842007-10-07 20:46:34 +0000300int $main(int argc, char **argv);
Denis Vlasenkof545be02007-10-07 17:06:26 +0000301
Denis Vlasenkof545be02007-10-07 17:06:26 +0000302int main(int argc, char **argv)
303{
Denis Vlasenko15cb4a42007-10-11 10:06:26 +0000304 lbb_prepare(\"$name\", argv);
Denis Vlasenkod62fd842007-10-07 20:46:34 +0000305 return $main(argc, argv);
Denis Vlasenkof545be02007-10-07 17:06:26 +0000306}
307" >"$sharedlib_dir/applet.c"
308
309 EXE="$sharedlib_dir/$name"
Denis Vlasenkof1d93ec2008-02-14 12:24:14 +0000310 try $CC $CFLAGS $LDFLAGS "$sharedlib_dir/applet.c" \
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +0000311 -o $EXE \
Bernhard Reutner-Fischera88585a2010-05-21 12:11:34 +0200312 $SORT_COMMON \
Denis Vlasenko130f5592007-11-13 17:36:12 +0000313 $SORT_SECTION \
Denis Vlasenkoa2dcb502008-04-30 00:15:56 +0000314 $GC_SECTIONS \
Denis Vlasenko01f3b2c2007-10-09 13:49:26 +0000315 -L"$sharedlib_dir" -lbusybox \
316 -Wl,--warn-common \
Denis Vlasenkof545be02007-10-07 17:06:26 +0000317 || {
318 echo "Linking $EXE failed"
Denis Vlasenko8d755ad2007-10-09 10:15:41 +0000319 cat $EXE.out
Denis Vlasenkof545be02007-10-07 17:06:26 +0000320 exit 1
321 }
322 rm -- "$sharedlib_dir/applet.c" $EXE.out
Denis Vlasenko141750e2007-10-10 10:05:35 +0000323 $STRIP -s --remove-section=.note --remove-section=.comment $EXE
Denys Vlasenkoe3366d62014-05-03 16:35:15 +0200324 # Let user see that we do something - list the names of created binaries:
325 echo "$EXE"
Denis Vlasenkof545be02007-10-07 17:06:26 +0000326
Denis Vlasenkoe9fd69c2007-10-08 22:16:14 +0000327 done <applet_lst.tmp
Denis Vlasenkof545be02007-10-07 17:06:26 +0000328fi
Denis Vlasenkod62fd842007-10-07 20:46:34 +0000329
330# libbusybox.so is needed only for -lbusybox at link time,
331# it is not needed at runtime. Deleting to reduce confusion.
Denis Vlasenko8d755ad2007-10-09 10:15:41 +0000332rm "$sharedlib_dir"/libbusybox.so 2>/dev/null
333exit 0 # or else we may confuse make