reviving libbusybox, adding CONFIG_INDIVIDUAL part 3

diff --git a/Config.in b/Config.in
index 450c4a6..64281f0 100644 (file)
--- a/Config.in
+++ b/Config.in
@@ -292,31 +292,30 @@ config BUILD_LIBBUSYBOX
          binary serves no purpose (and increases the size).  You should
          almost certainly say "no" to this right now.
 
-config FEATURE_FULL_LIBBUSYBOX
-       bool "Feature-complete libbusybox"
-       default n if !FEATURE_SHARED_BUSYBOX
-       depends on BUILD_LIBBUSYBOX
-       help
-         Build a libbusybox with the complete feature-set, disregarding
-         the actually selected config.
-
-         Normally, libbusybox will only contain the features which are
-         used by busybox itself. If you plan to write a separate
-         standalone application which uses libbusybox say 'Y'.
-
-         Note: libbusybox is GPL, not LGPL, and exports no stable API that
-         might act as a copyright barrier.  We can and will modify the
-         exported function set between releases (even minor version number
-         changes), and happily break out-of-tree features.
-
-         Say 'N' if in doubt.
+### config FEATURE_FULL_LIBBUSYBOX
+###    bool "Feature-complete libbusybox"
+###    default n if !FEATURE_SHARED_BUSYBOX
+###    depends on BUILD_LIBBUSYBOX
+###    help
+###      Build a libbusybox with the complete feature-set, disregarding
+###      the actually selected config.
+###
+###      Normally, libbusybox will only contain the features which are
+###      used by busybox itself. If you plan to write a separate
+###      standalone application which uses libbusybox say 'Y'.
+###
+###      Note: libbusybox is GPL, not LGPL, and exports no stable API that
+###      might act as a copyright barrier.  We can and will modify the
+###      exported function set between releases (even minor version number
+###      changes), and happily break out-of-tree features.
+###
+###      Say 'N' if in doubt.
 
 config FEATURE_SHARED_BUSYBOX
-       bool "Use shared libbusybox for busybox"
+       bool "Produce additional busybox binary linked against libbusybox"
        default y if BUILD_LIBBUSYBOX
        depends on !STATIC && BUILD_LIBBUSYBOX
        help
-         Use libbusybox.so also for busybox itself.
          You need to have a working dynamic linker to use this variant.
 
 config LFS
@@ -331,24 +330,24 @@ config LFS
          cp, mount, tar, and many others.  If you want to access files larger
          than 2 Gigabytes, enable this option.  Otherwise, leave it set to 'N'.
 
-config BUILD_AT_ONCE
-       bool "Compile all sources at once"
-       default n
-       help
-         Normally each source-file is compiled with one invocation of
-         the compiler.
-         If you set this option, all sources are compiled at once.
-         This gives the compiler more opportunities to optimize which can
-         result in smaller and/or faster binaries.
-
-         Setting this option will consume alot of memory, e.g. if you
-         enable all applets with all features, gcc uses more than 300MB
-         RAM during compilation of busybox.
-
-         This option is most likely only beneficial for newer compilers
-         such as gcc-4.1 and above.
-
-         Say 'N' unless you know what you are doing.
+### config BUILD_AT_ONCE
+###    bool "Compile all sources at once"
+###    default n
+###    help
+###      Normally each source-file is compiled with one invocation of
+###      the compiler.
+###      If you set this option, all sources are compiled at once.
+###      This gives the compiler more opportunities to optimize which can
+###      result in smaller and/or faster binaries.
+###
+###      Setting this option will consume alot of memory, e.g. if you
+###      enable all applets with all features, gcc uses more than 300MB
+###      RAM during compilation of busybox.
+###
+###      This option is most likely only beneficial for newer compilers
+###      such as gcc-4.1 and above.
+###
+###      Say 'N' unless you know what you are doing.
 
 endmenu
 

diff --git a/Makefile.flags b/Makefile.flags
index 764ce16..5294915 100644 (file)
--- a/Makefile.flags
+++ b/Makefile.flags
@@ -3,6 +3,7 @@
 # ==========================================================================
 
 BB_VER = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
+export BB_VER
 SKIP_STRIP = n
 
 # -std=gnu99 needed for [U]LLONG_MAX on some systems
@@ -59,7 +60,7 @@ ifeq ($(CONFIG_STATIC),y)
 LDFLAGS += -static
 endif
 
-LDLIBS = m crypt
+LDLIBS += m crypt
 
 ifeq ($(CONFIG_PAM),y)
 LDLIBS += pam pam_misc

diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c
index ca478b3..21b496c 100644 (file)
--- a/networking/udhcp/dhcpc.c
+++ b/networking/udhcp/dhcpc.c
@@ -260,7 +260,7 @@ int udhcpc_main(int argc, char **argv)
        if (opt & OPT_t)
                client_config.retries = xatoi_u(str_t);
        if (opt & OPT_v) {
-               printf("version %s\n", BB_VER);
+               puts("version "BB_VER);
                return 0;
        }
 
@@ -283,7 +283,7 @@ int udhcpc_main(int argc, char **argv)
        /* if (!..) bb_perror_msg("cannot create pidfile %s", pidfile); */
 
        /* Goes to stdout and possibly syslog */
-       bb_info_msg("%s (v%s) started", applet_name, BB_VER);
+       bb_info_msg("%s (v"BB_VER") started", applet_name);
 
        /* if not set, and not suppressed, setup the default client ID */
        if (!client_config.clientid && !(opt & OPT_C)) {

diff --git a/networking/udhcp/dhcpd.c b/networking/udhcp/dhcpd.c
index 3466312..4343f1c 100644 (file)
--- a/networking/udhcp/dhcpd.c
+++ b/networking/udhcp/dhcpd.c
@@ -62,7 +62,7 @@ int udhcpd_main(int argc, char **argv)
        write_pidfile(server_config.pidfile);
        /* if (!..) bb_perror_msg("cannot create pidfile %s", pidfile); */
 
-       bb_info_msg("%s (v%s) started", applet_name, BB_VER);
+       bb_info_msg("%s (v"BB_VER") started", applet_name);
 
        option = find_option(server_config.options, DHCP_LEASE_TIME);
        server_config.lease = LEASE_TIME;

diff --git a/scripts/trylink b/scripts/trylink
index c621b7c..de60a2c 100755 (executable)
--- a/scripts/trylink
+++ b/scripts/trylink
@@ -101,35 +101,50 @@ else
            >/dev/null
 fi
 
-mkdir 0lib 2>/dev/null
-test -d 0lib || exit 1
-ln -s libbusybox.so.1.8.0 0lib/libbusybox.so 2>/dev/null
+. .config
 
-EXE="0lib/libbusybox.so.1.8.0"
-try $CC $LDFLAGS \
+sharedlib_dir="0_lib"
+
+if test "$CONFIG_BUILD_LIBBUSYBOX" = y; then
+    mkdir "$sharedlib_dir" 2>/dev/null
+    test -d "$sharedlib_dir" || {
+       echo "Cannot make directory $sharedlib_dir"
+       exit 1
+    }
+    ln -s "libbusybox.so.$BB_VER" "$sharedlib_dir"/libbusybox.so 2>/dev/null
+
+    EXE="$sharedlib_dir/libbusybox.so.${BB_VER}_unstripped"
+    try $CC $LDFLAGS \
        -o $EXE -Wl,-Map -Wl,$EXE.map \
        -shared -fPIC -Wl,--enable-new-dtags \
        -Wl,--start-group -Wl,--whole-archive $A_FILES -Wl,--no-whole-archive -Wl,--end-group \
        $l_list -Wl,--verbose \
-       -Wl,-soname="libbusybox.so.1.8.0" \
+       -Wl,-soname="libbusybox.so.$BB_VER" \
        -Wl,-z,combreloc \
        >/dev/null \
-|| {
-    echo "Linking $EXE failed"
-    exit 1
-}
-strip -s --remove-section=.note --remove-section=.comment $EXE
+    || {
+       echo "Linking $EXE failed"
+       cat $EXE.out
+       exit 1
+    }
+    strip -s --remove-section=.note --remove-section=.comment $EXE -o "$sharedlib_dir/libbusybox.so.$BB_VER"
+    echo "libbusybox: $sharedlib_dir/libbusybox.so.$BB_VER"
+fi
 
-EXE="0lib/busybox"
-try $CC $LDFLAGS \
+if test "$CONFIG_FEATURE_SHARED_BUSYBOX" = y; then
+    EXE="$sharedlib_dir/busybox_unstripped"
+    try $CC $LDFLAGS \
        -o $EXE -Wl,-Map -Wl,$EXE.map \
        -Wl,--warn-common -Wl,--sort-common -Wl,--gc-sections \
        -Wl,--start-group $O_FILES -Wl,--end-group \
        $l_list -Wl,--verbose \
-       -L"0lib" -lbusybox \
+       -L"$sharedlib_dir" -lbusybox \
        >/dev/null \
-|| {
-    echo "Linking $EXE failed"
-    exit 1
-}
-strip -s --remove-section=.note --remove-section=.comment $EXE
+    || {
+       echo "Linking $EXE failed"
+       cat $EXE.out
+       exit 1
+    }
+    strip -s --remove-section=.note --remove-section=.comment $EXE -o "$sharedlib_dir/busybox"
+    echo "busybox linked against libbusybox: $sharedlib_dir/busybox"
+fi