diff options
author | Denys Vlasenko <vda.linux@googlemail.com> | 2017-08-08 16:38:18 +0200 |
---|---|---|
committer | Denys Vlasenko <vda.linux@googlemail.com> | 2017-08-08 17:09:40 +0200 |
commit | 036585a911a5fe6c2cd77b808dd9150500f37272 (patch) | |
tree | aa7c65b4d09c74642f622a1ef5da982d6ed4940a /archival | |
parent | 00677b5e35dd97f415f0b0bef25b55865f55ab33 (diff) | |
download | busybox-036585a911a5fe6c2cd77b808dd9150500f37272.tar.gz |
getopt32: remove applet_long_options
FEATURE_GETOPT_LONG made dependent on LONG_OPTS.
The folloving options are removed, now LONG_OPTS enables long options
for affected applets:
FEATURE_ENV_LONG_OPTIONS FEATURE_EXPAND_LONG_OPTIONS
FEATURE_UNEXPAND_LONG_OPTIONS FEATURE_MKDIR_LONG_OPTIONS
FEATURE_MV_LONG_OPTIONS FEATURE_RMDIR_LONG_OPTIONS
FEATURE_ADDGROUP_LONG_OPTIONS FEATURE_ADDUSER_LONG_OPTIONS
FEATURE_HWCLOCK_LONG_OPTIONS FEATURE_NSENTER_LONG_OPTS
FEATURE_CHCON_LONG_OPTIONS FEATURE_RUNCON_LONG_OPTIONS
They either had a small number of long options, or their long options are
essential.
Example: upstream addgroup and adduser have ONLY longopts,
we should probably go further and get rid
of non-standard short options.
To this end, make addgroup and adduser "select LONG_OPTS".
We had this breakage caused by us even in our own package!
#if ENABLE_LONG_OPTS || !ENABLE_ADDGROUP
/* We try to use --gid, not -g, because "standard" addgroup
* has no short option -g, it has only long --gid.
*/
argv[1] = (char*)"--gid";
#else
/* Breaks if system in fact does NOT use busybox addgroup */
argv[1] = (char*)"-g";
#endif
xargs: its lone longopt no longer depends on DESKTOP, only on LONG_OPTS.
hwclock TODO: get rid of incompatible -t, -l aliases to --systz, --localtime
Shorten help texts by omitting long option when short opt alternative exists.
Reduction of size comes from the fact that store of an immediate
(an address of longopts) to a fixed address (global variable)
is a longer insn than pushing that immediate or passing it in a register.
This effect is CPU-agnostic.
function old new delta
getopt32 1350 22 -1328
vgetopt32 - 1318 +1318
getopt32long - 24 +24
tftpd_main 562 567 +5
scan_recursive 376 380 +4
collect_cpu 545 546 +1
date_main 1096 1095 -1
hostname_main 262 259 -3
uname_main 259 255 -4
setpriv_main 362 358 -4
rmdir_main 191 187 -4
mv_main 562 558 -4
ipcalc_main 548 544 -4
ifenslave_main 641 637 -4
gzip_main 192 188 -4
gunzip_main 77 73 -4
fsfreeze_main 81 77 -4
flock_main 318 314 -4
deluser_main 337 333 -4
cp_main 374 370 -4
chown_main 175 171 -4
applet_long_options 4 - -4
xargs_main 894 889 -5
wget_main 2540 2535 -5
udhcpc_main 2767 2762 -5
touch_main 436 431 -5
tar_main 1014 1009 -5
start_stop_daemon_main 1033 1028 -5
sed_main 682 677 -5
script_main 1082 1077 -5
run_parts_main 330 325 -5
rtcwake_main 459 454 -5
od_main 2169 2164 -5
nl_main 201 196 -5
modprobe_main 773 768 -5
mkdir_main 160 155 -5
ls_main 568 563 -5
install_main 773 768 -5
hwclock_main 411 406 -5
getopt_main 622 617 -5
fstrim_main 256 251 -5
env_main 198 193 -5
dumpleases_main 635 630 -5
dpkg_main 3991 3986 -5
diff_main 1355 1350 -5
cryptpw_main 233 228 -5
cpio_main 593 588 -5
conspy_main 1135 1130 -5
chpasswd_main 313 308 -5
adduser_main 887 882 -5
addgroup_main 416 411 -5
ftpgetput_main 351 345 -6
get_terminal_width_height 242 234 -8
expand_main 690 680 -10
static.expand_longopts 18 - -18
static.unexpand_longopts 27 - -27
mkdir_longopts 28 - -28
env_longopts 30 - -30
static.ifenslave_longopts 34 - -34
mv_longopts 46 - -46
static.rmdir_longopts 48 - -48
packed_usage 31739 31687 -52
------------------------------------------------------------------------------
(add/remove: 2/8 grow/shrink: 3/49 up/down: 1352/-1840) Total: -488 bytes
text data bss dec hex filename
915681 485 6880 923046 e15a6 busybox_old
915428 485 6876 922789 e14a5 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'archival')
-rw-r--r-- | archival/bbunzip.c | 5 | ||||
-rw-r--r-- | archival/cpio.c | 7 | ||||
-rw-r--r-- | archival/dpkg.c | 3 | ||||
-rw-r--r-- | archival/gzip.c | 7 | ||||
-rw-r--r-- | archival/tar.c | 11 |
5 files changed, 18 insertions, 15 deletions
diff --git a/archival/bbunzip.c b/archival/bbunzip.c index 9b9fdc87b..20ab893da 100644 --- a/archival/bbunzip.c +++ b/archival/bbunzip.c @@ -389,9 +389,10 @@ int gunzip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int gunzip_main(int argc UNUSED_PARAM, char **argv) { #if ENABLE_FEATURE_GUNZIP_LONG_OPTIONS - applet_long_options = gunzip_longopts; -#endif + getopt32long(argv, "cfkvqdtn", gunzip_longopts); +#else getopt32(argv, "cfkvqdtn"); +#endif argv += optind; /* If called as zcat... diff --git a/archival/cpio.c b/archival/cpio.c index 38bab8257..f2165be3a 100644 --- a/archival/cpio.c +++ b/archival/cpio.c @@ -360,9 +360,8 @@ int cpio_main(int argc UNUSED_PARAM, char **argv) char *cpio_owner; IF_FEATURE_CPIO_O(const char *cpio_fmt = "";) unsigned opt; - #if ENABLE_LONG_OPTS - applet_long_options = + const char *long_opts = "extract\0" No_argument "i" "list\0" No_argument "t" #if ENABLE_FEATURE_CPIO_O @@ -390,9 +389,9 @@ int cpio_main(int argc UNUSED_PARAM, char **argv) /* -L makes sense only with -o or -p */ #if !ENABLE_FEATURE_CPIO_O - opt = getopt32(argv, OPTION_STR, &cpio_filename, &cpio_owner); + opt = getopt32long(argv, OPTION_STR, long_opts, &cpio_filename, &cpio_owner); #else - opt = getopt32(argv, OPTION_STR "oH:" IF_FEATURE_CPIO_P("p"), + opt = getopt32long(argv, OPTION_STR "oH:" IF_FEATURE_CPIO_P("p"), long_opts, &cpio_filename, &cpio_owner, &cpio_fmt); #endif argv += optind; diff --git a/archival/dpkg.c b/archival/dpkg.c index 90ad8766c..852e0cac2 100644 --- a/archival/dpkg.c +++ b/archival/dpkg.c @@ -1766,8 +1766,7 @@ int dpkg_main(int argc UNUSED_PARAM, char **argv) INIT_G(); - IF_LONG_OPTS(applet_long_options = dpkg_longopts); - opt = getopt32(argv, "CilPruF:", &str_f); + opt = getopt32long(argv, "CilPruF:", dpkg_longopts, &str_f); argv += optind; //if (opt & OPT_configure) ... // -C if (opt & OPT_force) { // -F (--force in official dpkg) diff --git a/archival/gzip.c b/archival/gzip.c index 4cf34ac28..9c53895e9 100644 --- a/archival/gzip.c +++ b/archival/gzip.c @@ -2216,11 +2216,12 @@ int gzip_main(int argc UNUSED_PARAM, char **argv) SET_PTR_TO_GLOBALS((char *)xzalloc(sizeof(struct globals)+sizeof(struct globals2)) + sizeof(struct globals)); -#if ENABLE_FEATURE_GZIP_LONG_OPTIONS - applet_long_options = gzip_longopts; -#endif /* Must match bbunzip's constants OPT_STDOUT, OPT_FORCE! */ +#if ENABLE_FEATURE_GZIP_LONG_OPTIONS + opt = getopt32long(argv, "cfkv" IF_FEATURE_GZIP_DECOMPRESS("dt") "qn123456789", gzip_longopts); +#else opt = getopt32(argv, "cfkv" IF_FEATURE_GZIP_DECOMPRESS("dt") "qn123456789"); +#endif #if ENABLE_FEATURE_GZIP_DECOMPRESS /* gunzip_main may not be visible... */ if (opt & 0x30) // -d and/or -t return gunzip_main(argc, argv); diff --git a/archival/tar.c b/archival/tar.c index f62b33005..44ab246c0 100644 --- a/archival/tar.c +++ b/archival/tar.c @@ -940,6 +940,11 @@ static const char tar_longopts[] ALIGN1 = "exclude\0" Required_argument "\xff" # endif ; +# define GETOPT32 getopt32long +# define LONGOPTS ,tar_longopts +#else +# define GETOPT32 getopt32 +# define LONGOPTS #endif int tar_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; @@ -980,9 +985,6 @@ int tar_main(int argc UNUSED_PARAM, char **argv) ":\xf9+" // --strip-components=NUM #endif ; -#if ENABLE_FEATURE_TAR_LONG_OPTIONS - applet_long_options = tar_longopts; -#endif #if ENABLE_DESKTOP /* Lie to buildroot when it starts asking stupid questions. */ if (argv[1] && strcmp(argv[1], "--version") == 0) { @@ -1019,7 +1021,7 @@ int tar_main(int argc UNUSED_PARAM, char **argv) } } #endif - opt = getopt32(argv, + opt = GETOPT32(argv, "txC:f:Oopvk" IF_FEATURE_TAR_CREATE( "ch" ) IF_FEATURE_SEAMLESS_BZ2( "j" ) @@ -1030,6 +1032,7 @@ int tar_main(int argc UNUSED_PARAM, char **argv) IF_FEATURE_SEAMLESS_Z( "Z" ) IF_FEATURE_TAR_NOPRESERVE_TIME("m") IF_FEATURE_TAR_LONG_OPTIONS("\xf9:") // --strip-components + LONGOPTS , &base_dir // -C dir , &tar_filename // -f filename IF_FEATURE_TAR_FROM(, &(tar_handle->accept)) // T |