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Back in 2007, commit 0c97c9d43707 ("'simple' error message functions by
Loic Grenie") introduced bb_simple_perror_msg() to allow for a lower
overhead call to bb_perror_msg() when only a string was being printed
with no parameters. This saves space for some CPU architectures because
it avoids the overhead of a call to a variadic function. However there
has never been a simple version of bb_error_msg(), and since 2007 many
new calls to bb_perror_msg() have been added that only take a single
parameter and so could have been using bb_simple_perror_message().
This changeset introduces 'simple' versions of bb_info_msg(),
bb_error_msg(), bb_error_msg_and_die(), bb_herror_msg() and
bb_herror_msg_and_die(), and replaces all calls that only take a
single parameter, or use something like ("%s", arg), with calls to the
corresponding 'simple' version.
Since it is likely that single parameter calls to the variadic functions
may be accidentally reintroduced in the future a new debugging config
option WARN_SIMPLE_MSG has been introduced. This uses some macro magic
which will cause any such calls to generate a warning, but this is
turned off by default to avoid use of the unpleasant macros in normal
circumstances.
This is a large changeset due to the number of calls that have been
replaced. The only files that contain changes other than simple
substitution of function calls are libbb.h, libbb/herror_msg.c,
libbb/verror_msg.c and libbb/xfuncs_printf.c. In miscutils/devfsd.c,
networking/udhcp/common.h and util-linux/mdev.c additonal macros have
been added for logging so that single parameter and multiple parameter
logging variants exist.
The amount of space saved varies considerably by architecture, and was
found to be as follows (for 'defconfig' using GCC 7.4):
Arm: -92 bytes
MIPS: -52 bytes
PPC: -1836 bytes
x86_64: -938 bytes
Note that for the MIPS architecture only an exception had to be made
disabling the 'simple' calls for 'udhcp' (in networking/udhcp/common.h)
because it made these files larger on MIPS.
Signed-off-by: James Byrne <james.byrne@origamienergy.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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text data bss dec hex filename
922535 481 6832 929848 e3038 busybox_old
922534 481 6832 929847 e3037 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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"builtin" below is atexit's 32-element global array of functions to call.
function old new delta
top_main 879 889 +10
launch_helper 185 193 +8
powertop_main 1555 1559 +4
sed_main 651 650 -1
slot 4 - -4
call 4 - -4
atexit 23 - -23
kill_helper 31 - -31
__funcs_on_exit 120 - -120
__cxa_atexit 168 - -168
builtin 260 - -260
------------------------------------------------------------------------------
(add/remove: 0/8 grow/shrink: 3/1 up/down: 22/-611) Total: -589 bytes
text data bss dec hex filename
912364 563 6132 919059 e0613 busybox_old
912035 563 5844 918442 e03aa busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Those two spaces after tab have no effect, and always a nuisance when editing.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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No code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
set_termios_to_raw - 116 +116
count_lines 72 74 +2
powertop_main 1458 1430 -28
top_main 943 914 -29
more_main 759 714 -45
fsck_minix_main 2969 2921 -48
conspy_main 1197 1135 -62
rawmode 99 36 -63
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/6 up/down: 118/-275) Total: -157 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
print_intel_cstates 499 511 +12
file_insert 355 364 +9
dpkg_main 2944 2940 -4
ifenslave_main 645 640 -5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/2 up/down: 21/-9) Total: 12 bytes
text data bss dec hex filename
937564 932 17676 956172 e970c busybox_old
937164 932 17676 955772 e957c busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Benefits are: drops reference to out-of-line putchar(), fixes a few cases
of failed string merge.
function old new delta
i2cdump_main 1488 1502 +14
sha256_process_block64 423 433 +10
sendmail_main 1183 1185 +2
list_table 1114 1116 +2
i2cdetect_main 1235 1237 +2
fdisk_main 2852 2854 +2
builtin_type 119 121 +2
unicode_conv_to_printable2 325 324 -1
scan_recursive 380 378 -2
mkfs_minix_main 2687 2684 -3
buffer_fill_and_print 178 169 -9
putchar 152 - -152
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 7/4 up/down: 34/-167) Total: -133 bytes
text data bss dec hex filename
937788 932 17676 956396 e97ec busybox_old
937564 932 17676 956172 e970c busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
unix_do_one 548 540 -8
process_timer_stats 508 500 -8
process_irq_counts 532 524 -8
lpd_main 839 831 -8
hwclock_main 502 494 -8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/6 up/down: 0/-50) Total: -40 bytes
Signed-off-by: Ron Yorston <rmy@tigress.co.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
is_prefixed_with - 18 +18
complete_username 78 77 -1
man_main 737 735 -2
fsck_device 429 427 -2
unpack_ar_archive 80 76 -4
strip_unsafe_prefix 105 101 -4
singlemount 1054 1050 -4
rtc_adjtime_is_utc 90 86 -4
resolve_mount_spec 88 84 -4
parse_one_line 1029 1025 -4
parse_conf 1460 1456 -4
may_wakeup 83 79 -4
loadkmap_main 219 215 -4
get_irqs_from_stat 103 99 -4
get_header_cpio 913 909 -4
findfs_main 79 75 -4
fbsplash_main 1230 1226 -4
load_crontab 776 771 -5
expand_vars_to_list 1151 1146 -5
date_main 881 876 -5
skip_dev_pfx 30 24 -6
make_device 2199 2193 -6
complete_cmd_dir_file 773 767 -6
run_applet_and_exit 715 708 -7
uudecode_main 321 313 -8
pwdx_main 197 189 -8
execute 568 560 -8
i2cdetect_main 1186 1176 -10
procps_scan 1242 1230 -12
procps_read_smaps 1017 1005 -12
process_module 746 734 -12
patch_main 1903 1891 -12
nfsmount 3572 3560 -12
stack_machine 126 112 -14
process_timer_stats 449 435 -14
match_fstype 111 97 -14
do_ipaddr 1344 1330 -14
open_list_and_close 359 343 -16
get_header_tar 1795 1779 -16
prepend_new_eth_table 340 323 -17
fsck_main 1811 1794 -17
find_iface_state 56 38 -18
dnsd_main 1321 1303 -18
base_device 179 158 -21
find_keyword 104 82 -22
handle_incoming_and_exit 2785 2762 -23
parse_and_put_prompt 774 746 -28
modinfo 347 317 -30
find_action 204 171 -33
update_passwd 1470 1436 -34
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/49 up/down: 18/-540) Total: -522 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
smart_ulltoa5 405 408 +3
smart_ulltoa4 273 276 +3
list_table 1113 1114 +1
scale 36 34 -2
put_lu 55 53 -2
ulltoa6_and_space 19 14 -5
powertop_main 1470 1461 -9
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Application tries to use timer_stats module instead of cpufreq_stats.
Error message is printed if opening of the file /proc/timer_stats fails.
Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Moved to [/usr]/sbin:
addgroup, adduser, delgroup, deluser,
arping, chat, ether-wake, fdformat, ifplugd,
ip, ipaddr, iplink, iproute, iprule, iptunnel,
killall5, readahead, rtcwake, tftpd, add-shell, remove-shell, powertop.
Moved to /bin for /usr/bin: kbd_mode.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
process_timer_stats 490 449 -41
Signed-off-by: Maksym Kryzhanovskyy <xmaks@email.cz>
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
read_cstate_counts 355 360 +5
print_intel_cstates 494 499 +5
process_timer_stats 554 480 -74
process_irq_counts 765 530 -235
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/2 up/down: 10/-309) Total: -299 bytes
Signed-off-by: Maksym Kryzhanovskyy <xmaks@email.cz>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
.rodata 145530 145514 -16
powertop_main 1510 1403 -107
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
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Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
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function old new delta
process_timer_stats - 631 +631
clear_lines 72 74 +2
process_irq_counts 729 726 -3
.rodata 145699 145530 -169
powertop_main 2341 1510 -831
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 1/2 up/down: 1359/-1729) Total: -370 bytes
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
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function old new delta
process_irq_count_deltas - 729 +729
read_cstate_counts - 358 +358
save_line - 150 +150
clear_lines 80 72 -8
line_compare 18 7 -11
.rodata 145736 145699 -37
powertop_main 2527 2341 -186
push_line 193 - -193
read_data 348 - -348
do_proc_irq 890 - -890
------------------------------------------------------------------------------
(add/remove: 3/3 grow/shrink: 0/4 up/down: 1237/-1673) Total: -436 bytes
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
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Signed-off-by: Marek Polacek <mmpolacek@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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