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1521 Commits

Author SHA1 Message Date
James Byrne
253c4e787a Optionally re-introduce bb_info_msg() 
Between Busybox 1.24.2 and 1.25.0 the bb_info_msg() function was
eliminated and calls to it changed to be bb_error_msg(). The downside of
this is that daemons now log all messages to syslog at the LOG_ERR level
which makes it hard to filter errors from informational messages.

This change optionally re-introduces bb_info_msg(), controlled by a new
option FEATURE_SYSLOG_INFO, restores all the calls to bb_info_msg() that
were removed (only in applets that set logmode to LOGMODE_SYSLOG or
LOGMODE_BOTH), and also changes informational messages in ifplugd and
ntpd.

The code size change of this is as follows (using 'defconfig' on x86_64
with gcc 7.3.0-27ubuntu1~18.04)

function                                             old     new   delta
bb_info_msg                                            -     182    +182
bb_vinfo_msg                                           -      27     +27
static.log7                                          194     198      +4
log8                                                 190     191      +1
log5                                                 190     191      +1
crondlog                                              45       -     -45
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 3/0 up/down: 215/-45)           Total: 170 bytes

If you don't care about everything being logged at LOG_ERR level
then when FEATURE_SYSLOG_INFO is disabled Busybox actually gets smaller:

function                                             old     new   delta
static.log7                                          194     200      +6
log8                                                 190     193      +3
log5                                                 190     193      +3
syslog_level                                           1       -      -1
bb_verror_msg                                        583     581      -2
crondlog                                              45       -     -45
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 3/1 up/down: 12/-48)            Total: -36 bytes

Signed-off-by: James Byrne <james.byrne@origamienergy.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-04-30 10:51:27 +02:00
Denys Vlasenko
0f5a7f3520 man: add "/usr/share/man" as another default MANPATH, fix col override 
function                                             old     new   delta
static.mpl                                             -      12     +12
packed_usage                                       33307   33316      +9
man_main                                             857     851      -6
add_MANPATH                                          148     138     -10
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/2 up/down: 21/-16)              Total: 5 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-03-30 17:27:09 +01:00
Ron Yorston
3c6f3336e1 man: don't skip default path which appears in config file 
If the MANPATH environment variable isn't set a provisional default
path of /usr/man is placed in man_path_list.  This is only used if a
configuration file doesn't contain an alternative path.

If a configuration file lists the default path first:

   MANPATH /usr/man:/usr/share/man

add_MANPATH() sees that the default entry is already present and skips
it.  As a result man_path_list only contains the second and subsequent
components of the configured MANPATH.

In such cases the path should not be skipped.

function                                             old     new   delta
add_MANPATH                                          170     183     +13
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 13/0)               Total: 13 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-03-26 17:46:21 +01:00
Denys Vlasenko
fe78c9a8b7 ts: do call localtime() when neither -s nor -i specified 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-03-26 11:51:21 +01:00
Denys Vlasenko
973698d7b1 ts: use gettimeofday - we don't use nanoseconds here 
function                                             old     new   delta
ts_main                                              398     376     -22

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-03-26 11:44:48 +01:00
Denys Vlasenko
3395e2a8ef ts: replace overlapping strcpy with shorter code 
function                                             old     new   delta
ts_main                                              401     398      -3

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-03-26 11:41:35 +01:00
Denys Vlasenko
f370a66b26 ts: fix incorrect (copy-pasted) copyright attribution 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-03-26 11:12:53 +01:00
Denys Vlasenko
16df5e8e6d ts: new applet 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-03-26 11:02:31 +01:00
Denys Vlasenko
5059653882 do not duplicate CONFIG_PID_FILE_PATH and ".pid" strings 
text	   data	    bss	    dec	    hex	filename
 981737	    485	   7296	 989518	  f194e	busybox_old
 981704	    485	   7296	 989485	  f192d	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-03-17 19:48:39 +01:00
Nikolaus Voss
f81e0120f4 i2c_tools.c: i2ctransfer 
Call i2c_set_slave_addr() unconditionally as busy checking
is skipped depending on force argument.
Clarify usage texts for -f and -a flags.

Signed-off-by: Nikolaus Voss <nv@vosn.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-02-11 12:34:13 +01:00
Nikolaus Voss
dac8f5ea38 i2ctransfer: new applet 
i2ctransfer sends and receives user defined i2c messages

v2: apply Xabier's comments: add -a option, don't decrement argc,
    use bb_show_usage() and xzalloc()
v3: fix possible out of bound access to msgs[nmsgs]

Reviewed-by: Xabier Oneca -- xOneca <xoneca@gmail.com>
Signed-off-by: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-02-10 19:59:07 +01:00
Denys Vlasenko
53799506ac bc: implement pass-by-reference code from upstream 
function                                             old     new   delta
zxc_program_popResultAndCopyToVar                    298     493    +195
bc_vec_pushIndex                                       -      75     +75
zxc_vm_process                                       859     928     +69
xc_program_dereference                                 -      66     +66
bc_vec_npush                                           -      65     +65
zbc_num_s                                            239     249     +10
zxc_program_num                                     1024    1032      +8
zbc_num_divmod                                       150     156      +6
xc_program_search                                    143     146      +3
zxc_program_assign                                   392     389      -3
zdc_program_execStr                                  520     517      -3
xc_program_pushVar                                   198     195      -3
zxc_program_exec                                    4101    4092      -9
zbc_program_call                                     318     308     -10
zbc_func_insert                                      120     104     -16
zbc_parse_stmt_possibly_auto                        1460    1439     -21
bc_vec_push                                           53      12     -41
xc_parse_pushIndex                                    61      18     -43
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 6/9 up/down: 497/-149)          Total: 348 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-25 16:22:15 +01:00
Denys Vlasenko
cfc2546ea4 bc: code shrink 
function                                             old     new   delta
xc_parse_pushInst_and_Index                            -      16     +16
zbc_parse_expr                                      1818    1816      -2
xc_parse_pushIndex                                    65      61      -4
zbc_parse_pushSTR                                     63      58      -5
zbc_parse_name                                       448     442      -6
xc_parse_pushNUM                                      74      67      -7
zdc_parse_expr                                       479     470      -9
bc_parse_pushJUMP_ZERO                                21      12      -9
bc_parse_pushJUMP                                     21      12      -9
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/8 up/down: 16/-51)            Total: -35 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-09 11:17:19 +01:00
Denys Vlasenko
a1698a15dc bc: remove "empty expression" check/message, parsing fails in these cases anyway 
function                                             old     new   delta
zbc_parse_expr                                      1848    1818     -30

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-08 19:32:38 +01:00
Denys Vlasenko
132d7c098b bc: zbc_parse_expr_empty_ok() is unused except by zbc_parse_expr(), fold it in 
function                                             old     new   delta
zbc_parse_expr                                      1865    1848     -17

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-08 19:29:35 +01:00
Denys Vlasenko
fc7aa7a296 bc: disallow invalid syntax like "{ print 1 print 2 }" 
statement parsing must NOT eat the terminator: caller needs to know
what it was, to correctly decide whether it is a valid one.

function                                             old     new   delta
zxc_program_read                                       -     234    +234
zdc_program_printStream                                -     144    +144
zbc_parse_stmt_possibly_auto                        1413    1460     +47
zxc_vm_process                                       869     859     -10
zxc_program_exec                                    4116    4101     -15
zdc_program_asciify                                  368       -    -368
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 1/2 up/down: 425/-393)           Total: 32 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-08 18:10:00 +01:00
Denys Vlasenko
edca770d11 sleep: support "inf" 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-07 15:20:56 +01:00
Denys Vlasenko
e05ec6ed3e bc: shorten "limits" output 
text	   data	    bss	    dec	    hex	filename
 979016	    485	   7296	 986797	  f0ead	busybox_old
 978959	    485	   7296	 986740	  f0e74	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-04 16:26:19 +01:00
Denys Vlasenko
f11b5b9864 bc: formatting changes, added a FIXME comment, no logic changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-04 15:54:40 +01:00
Denys Vlasenko
54f5c1d600 bc: support void functions (GNU compat) 
function                                             old     new   delta
xc_program_print                                       -     689    +689
zxc_vm_process                                       814     869     +55
zxc_program_exec                                    4098    4116     +18
zxc_program_assign                                   385     392      +7
bc_result_free                                        43      46      +3
zxc_program_binOpPrep                                243     245      +2
zdc_program_execStr                                  518     520      +2
zxc_program_print                                    683       -    -683
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 6/0 up/down: 776/-683)           Total: 93 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-04 13:58:46 +01:00
Denys Vlasenko
1db367a8e6 dc: fit returning of string 
function                                             old     new   delta
zxc_program_exec                                    4087    4098     +11

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-04 06:18:00 +01:00
Denys Vlasenko
6842c6062a dc: fix '?' 
function                                             old     new   delta
zdc_parse_expr                                       470     479      +9
zxc_vm_process                                       839     814     -25
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 9/-25)             Total: -16 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-04 05:41:47 +01:00
Denys Vlasenko
377cc97b19 bc: eliminate struct BcInstPtr::results_len_before_call, it is redundant 
function                                             old     new   delta
zbc_program_call                                     332     318     -14
zxc_program_exec                                    4147    4087     -60
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-74)             Total: -74 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-04 00:35:31 +01:00
Denys Vlasenko
02c3d7a1c9 bc: add a palceholder comment for "void" return 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-04 00:21:29 +01:00
Denys Vlasenko
19c3eb0b04 bc: remove extra div/0 test, remove test for string function parameter 
function                                             old     new   delta
zbc_program_call                                     354     332     -22
zxc_program_assign                                   426     385     -41
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-63)             Total: -63 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-04 00:05:07 +01:00
Denys Vlasenko
96b5ec10fb bc: fix "...; return}" to work, disallow "return ()" 
function                                             old     new   delta
zbc_parse_expr                                        24    1865   +1841
zbc_parse_stmt_possibly_auto                        1425    1413     -12
bc_parse_expr_empty_ok                              1843       -   -1843
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/1 up/down: 1841/-1855)        Total: -14 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-03 23:34:36 +01:00
Denys Vlasenko
ae6c44ea15 bc: make error line number also size_t, like everything else 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-02 16:30:24 +01:00
Denys Vlasenko
266bec8ba7 bc: speed up string printing, fix print "" 
function                                             old     new   delta
static.esc                                             -       9      +9
zxc_program_print                                    681     683      +2
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/0 up/down: 11/0)               Total: 11 bytes
   text	   data	    bss	    dec	    hex	filename
 979144	    485	   7296	 986925	  f0f2d	busybox_old
 979062	    485	   7296	 986843	  f0edb	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-02 05:03:53 +01:00
Denys Vlasenko
2231468a2f bc: upstream fixes 
function                                             old     new   delta
bc_parse_expr_empty_ok                              1764    1843     +79
bc_error_at                                            -      62     +62
bc_parse_inst_isLeaf                                   -      30     +30
zbc_func_insert                                      100     120     +20
bc_error_bad_function_definition                       -      10     +10
bc_error_bad_assignment                                -      10     +10
zxc_lex_next                                        1608    1614      +6
ok_in_expr                                            30       -     -30
zxc_vm_process                                       874     839     -35
------------------------------------------------------------------------------
(add/remove: 4/1 grow/shrink: 3/1 up/down: 217/-65)           Total: 152 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-01 21:50:14 +01:00
Denys Vlasenko
51b510a480 bc: in xc_read_line(), check ^C on NUL input bytes too 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2019-01-01 02:19:02 +01:00
Denys Vlasenko
8797adc1c6 bc: remove superfluous assigment 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-31 19:50:06 +01:00
Denys Vlasenko
680ccd3573 bc: support ibase up to 36 (GNU compat) 
function                                             old     new   delta
zxc_program_num                                      995    1018     +23

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-31 19:42:13 +01:00
Denys Vlasenko
2747f6195b bc: fold xc_lex_more_input() into peek_inbuf() 
function                                             old     new   delta
peek_inbuf                                            69      56     -13

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-31 18:48:59 +01:00
Denys Vlasenko
2cd8c04632 bc: tidying up, no logic changes 
function                                             old     new   delta
bc_ops_prec_and_assoc                                  -      25     +25
xc_vm_init                                           665     663      -2
bc_parse_ops                                          25       -     -25
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 0/1 up/down: 25/-27)             Total: -2 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-30 15:56:36 +01:00
Denys Vlasenko
8ab209f00e bc: simplify representation of 0.5 in sqrt() 
function                                             old     new   delta
zxc_program_exec                                    4012    4149    +137
zdc_program_printStream                              144       -    -144
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/0 up/down: 137/-144)           Total: -7 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-29 16:23:34 +01:00
Denys Vlasenko
374d2c47ec bc: remove special-cased assignment to ibase, it works correctly with general rules 
function                                             old     new   delta
zxc_program_print                                    683     681      -2
zxc_program_prep                                      91      89      -2
zxc_program_copyToVar                                300     298      -2
zdc_program_printStream                              146     144      -2
zdc_program_execStr                                  520     518      -2
zdc_program_asciify                                  370     368      -2
zxc_program_exec                                    4016    4012      -4
zdc_program_modexp                                   694     688      -6
zxc_program_num                                     1020     995     -25
zxc_program_binOpPrep                                306     243     -63
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/10 up/down: 0/-110)          Total: -110 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-29 14:52:30 +01:00
Denys Vlasenko
d5b0fa6abf bc: more fixes for unusual input bases 
function                                             old     new   delta
zxc_program_num                                      990    1020     +30
zxc_lex_number                                       172     202     +30
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 60/0)               Total: 60 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-29 03:08:12 +01:00
Denys Vlasenko
e16a5223d2 bc: fix handling of "digits" above 9 
function                                             old     new   delta
zxc_lex_next                                        1573    1608     +35
xc_parse_pushIndex                                    58      56      -2
xc_program_index                                      71      63      -8
zxc_program_num                                     1022     990     -32
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 35/-42)             Total: -7 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-29 02:24:19 +01:00
Denys Vlasenko
b86b39bfda config: more tweaks 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-28 17:52:43 +01:00
Denys Vlasenko
cdadad58a1 bc: bc enables FEATURE_DC_BIG, for correct dc testsuite operation 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-28 15:13:23 +01:00
Denys Vlasenko
1476760600 bc: rename config options 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-28 13:32:04 +01:00
Denys Vlasenko
b097a84d62 config: update size information 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-28 03:20:17 +01:00
Denys Vlasenko
10bde14292 bc: rename functions common to bc and dc as xc_FOO() 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-27 18:23:58 +01:00
Denys Vlasenko
db8d607514 bc: G.prog.zero does not need initializing num[] vector 
function                                             old     new   delta
bc_vm_init                                           676     665     -11

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-27 18:08:49 +01:00
Denys Vlasenko
3d27d435db randomconfig fixes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-27 18:03:20 +01:00
Denys Vlasenko
2beb1f6faf bc: use ALIGN1 where appropriate 
text	   data	    bss	    dec	    hex	filename
 980138	    485	   7296	 987919	  f130f	busybox_old
 980128	    485	   7296	 987909	  f1305	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-26 21:17:12 +01:00
Denys Vlasenko
8af11087b2 bc: undo debugging change, add a small optimization 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-26 21:01:41 +01:00
Denys Vlasenko
ab9a98602f bc: simple speedups 
function                                             old     new   delta
bc_parse_pushName                                     20      56     +36
bc_program_index                                      47      71     +24
bc_parse_pushIndex                                    52      58      +6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 66/0)               Total: 66 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-26 20:30:47 +01:00
Denys Vlasenko
f706a18f33 bc: use '\0' insteads of 0xff (BC_PARSE_STREND) as name terminator 
function                                             old     new   delta
zdc_program_printStream                                -     146    +146
zbc_program_exec                                    4003    4016     +13
zdc_parse_expr                                       473     470      -3
bc_parse_pushName                                     31      20     -11
bc_program_name                                       63      34     -29
zbc_program_pushArray                                147       -    -147
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 1/3 up/down: 159/-190)          Total: -31 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-26 20:02:27 +01:00
Denys Vlasenko
1c69ec1597 bc: reduce indentation, no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-26 19:24:15 +01:00
Denys Vlasenko
8a56e3643f bc: fix "bc only" build 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-26 19:09:23 +01:00
Denys Vlasenko
1e87b97da6 bc: fix "dc only" build 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-26 19:06:05 +01:00
Denys Vlasenko
2f7352b4f5 bc: comment out code which appears to be never reached 
function                                             old     new   delta
zbc_lex_next                                        1587    1568     -19

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-26 18:59:42 +01:00
Denys Vlasenko
b1b7996a2a bc: remove all logic for multi-line buffering 
function                                             old     new   delta
zbc_vm_process                                       865     874      +9
zbc_parse_text_init                                   51      38     -13
bc_read_line                                         394     345     -49
peek_inbuf                                           292      69    -223
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 9/-285)           Total: -276 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-26 18:46:03 +01:00
Denys Vlasenko
7d32e25bf3 bc: prepare for char-by-char input handling 
function                                             old     new   delta
peek_inbuf                                             -     292    +292
parse_lex_by_checking_eq_sign                          -      26     +26
eat_inbuf                                              -      22     +22
zbc_vm_execute_FILE                                   52      61      +9
bc_lex_lineComment                                    29      30      +1
zbc_lex_number                                       174     172      -2
bc_vm_run                                            104      99      -5
zbc_num_divmod                                       156     150      -6
bc_lex_file                                           24       -     -24
bc_lex_assign                                         26       -     -26
zbc_lex_next                                        1982    1587    -395
------------------------------------------------------------------------------
(add/remove: 3/2 grow/shrink: 2/4 up/down: 350/-458)         Total: -108 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-26 18:32:43 +01:00
Denys Vlasenko
63ad799384 bc: fix handling of comment/string interactions while buffering input 
function                                             old     new   delta
zbc_lex_next                                        1965    1982     +17
zbc_num_divmod                                       150     156      +6
bc_read_line                                         411     394     -17
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 23/-17)              Total: 6 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-26 12:23:05 +01:00
Denys Vlasenko
94576d2b97 bc: fix interactive handling of comments in strings and quotes in comments 
function                                             old     new   delta
zbc_lex_next                                        1965    1979     +14

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-25 23:45:57 +01:00
Denys Vlasenko
c192b0442b bc: simplify input pointer manipulation while lexing 
function                                             old     new   delta
bc_lex_name                                           70      68      -2
zbc_lex_number                                       177     174      -3
bc_vm_init                                           679     676      -3
bc_lex_whitespace                                     42      39      -3
zbc_parse_text_init                                   55      51      -4
bc_lex_lineComment                                    37      29      -8
bc_lex_assign                                         34      26      -8
zbc_lex_next                                        2039    1965     -74
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/8 up/down: 0/-105)           Total: -105 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-25 23:15:59 +01:00
Denys Vlasenko
ecb62edd47 bc: fold struct BcLex into BcParse 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-25 22:32:41 +01:00
Denys Vlasenko
6e6182342e bc: move BcLex::lex member to be the first in struct globals 
function                                             old     new   delta
zbc_program_exec                                    3967    4003     +36
zdc_program_execStr                                  501     520     +19
zbc_posix_error_fmt                                   58      62      +4
bc_vm_init                                           675     679      +4
bc_read_line                                         407     411      +4
bc_error_fmt                                          36      40      +4
zdc_parse_register                                    45      44      -1
zdc_parse_exprs_until_eof                             28      27      -1
zbc_parse_text_init                                   56      55      -1
zbc_parse_stmt_allow_NLINE_before                     55      54      -1
zbc_lex_skip_if_at_NLINE                              19      18      -1
zbc_lex_number                                       178     177      -1
bc_parse_create                                       97      96      -1
bc_lex_whitespace                                     43      42      -1
bc_lex_name                                           71      70      -1
bc_lex_lineComment                                    38      37      -1
bc_lex_assign                                         35      34      -1
zdc_parse_expr                                       476     473      -3
bc_verror_msg                                         93      90      -3
bc_lex_file                                           27      24      -3
zbc_parse_name                                       453     448      -5
bc_parse_expr_empty_ok                              1776    1764     -12
zbc_vm_process                                       878     865     -13
zbc_parse_stmt_possibly_auto                        1451    1425     -26
zbc_lex_next                                        2075    2039     -36
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 6/19 up/down: 71/-112)          Total: -41 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-25 22:20:14 +01:00
Denys Vlasenko
0b0e8d0509 bc: rename some members and macros, no code changes 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-25 21:44:10 +01:00
Denys Vlasenko
3f8752c33f bc: shorten error messages 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-25 21:28:25 +01:00
Gavin Howard
fa495ce498 bc: make it clear that the code is adapted 
Signed-off-by: Gavin Howard <yzena.tech@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-25 20:53:15 +01:00
Denys Vlasenko
a2e62e3e50 bc: stop passing a pointer to G.prs down the call chain 
function                                             old     new   delta
rewrite_label_to_current                              19      26      +7
bc_lex_assign                                         28      35      +7
zbc_lex_skip_if_at_NLINE                              14      19      +5
bc_parse_push                                         11      16      +5
bc_parse_operator                                    147     152      +5
bc_parse_create                                       92      97      +5
bc_lex_whitespace                                     38      43      +5
bc_lex_name                                           66      71      +5
bc_lex_lineComment                                    33      38      +5
zbc_lex_number                                       174     178      +4
zbc_parse_text_init                                   53      56      +3
zdc_parse_register                                    43      45      +2
zdc_parse_exprs_until_eof                             26      28      +2
bc_parse_free                                         38      40      +2
bc_lex_file                                           28      27      -1
zbc_parse_pushSTR                                     65      63      -2
bc_parse_expr_empty_ok                              1778    1776      -2
zbc_vm_execute_FILE                                   55      52      -3
bc_vm_init                                           678     675      -3
zbc_parse_stmt_allow_NLINE_before                     59      55      -4
bc_parse_pushNUM                                      80      74      -6
bc_parse_pushJUMP_ZERO                                27      21      -6
bc_parse_pushJUMP                                     27      21      -6
bc_vm_run                                            112     104      -8
bc_parse_pushName                                     39      31      -8
bc_parse_pushIndex                                    60      52      -8
zbc_parse_name                                       468     453     -15
zdc_program_execStr                                  524     501     -23
zdc_parse_mem                                         93      70     -23
zbc_program_exec                                    4003    3967     -36
zdc_parse_expr                                       518     476     -42
zbc_vm_process                                       923     878     -45
zbc_lex_next                                        2158    2070     -88
zbc_parse_stmt_possibly_auto                        1560    1451    -109
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 14/20 up/down: 62/-438)        Total: -376 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-25 20:40:55 +01:00
Denys Vlasenko
1fbe35a7d8 bc: make zbc_program_read() and zdc_program_execStr() use G.prs 
function                                             old     new   delta
zbc_program_print                                    656     683     +27
zbc_program_exec                                    3976    4003     +27
zdc_program_execStr                                  512     524     +12
bc_num_printNewline                                   45      54      +9
bc_num_printHex                                       61      67      +6
bc_num_printDigits                                   131     137      +6
dc_num_printChar                                      21      24      +3
bc_vm_init                                           675     678      +3
zbc_program_assign                                   424     426      +2
bc_read_line                                         410     407      -3
bc_verror_msg                                         99      93      -6
zbc_lex_next                                        2167    2158      -9
zbc_vm_execute_FILE                                   67      55     -12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 9/4 up/down: 95/-30)             Total: 65 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-25 19:38:13 +01:00
Denys Vlasenko
53e569c06b bc: fix interactive read() 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-25 19:37:23 +01:00
Denys Vlasenko
2638454464 bc: add code to detect errors like "print 1 print 2" 
function                                             old     new   delta
zbc_vm_process                                       831     925     +94
zbc_program_exec                                    3964    3976     +12
zdc_program_execStr                                  506     512      +6
zbc_lex_next                                        2161    2167      +6
zbc_program_assign                                   419     424      +5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/0 up/down: 123/0)             Total: 123 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-25 18:37:52 +01:00
Denys Vlasenko
5fa74b9efc bc: allow {break} and {continue} (allow RBRACE to terminate them) 
function                                             old     new   delta
zbc_parse_stmt_possibly_auto                        1599    1560     -39

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-25 17:07:51 +01:00
Denys Vlasenko
d4b721cc8b bc: shrink parsing code a bit more, disallow "auto a b c" (without commas) 
function                                             old     new   delta
bc_parse_expr_empty_ok                              1791    1785      -6
zbc_parse_stmt_possibly_auto                        1675    1599     -76
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-82)             Total: -82 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-25 16:39:01 +01:00
Denys Vlasenko
73b3ebc0e1 bc: simplify bc_parse_expr_empty_ok() 
function                                             old     new   delta
bc_parse_expr_empty_ok                              1810    1791     -19

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-25 01:43:52 +01:00
Denys Vlasenko
d0238d83f0 bc: simplify bc_parse_expr_empty_ok() 
function                                             old     new   delta
bc_parse_expr_empty_ok                              1819    1810      -9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-25 01:21:16 +01:00
Denys Vlasenko
bb116031a0 bc: simplify bc_parse_expr_empty_ok() 
function                                             old     new   delta
bc_parse_expr_empty_ok                              1846    1819     -27

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-25 01:16:37 +01:00
Denys Vlasenko
d897c9aca6 bc: BC_RESULT_ONE is bc-specific 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 23:41:31 +01:00
Denys Vlasenko
0c45bb22a0 bc: partially deinline BC_PARSE_LEAF() macro 
function                                             old     new   delta
ok_in_expr                                             -      30     +30
bc_parse_expr_empty_ok                              1972    1846    -126
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/1 up/down: 30/-126)           Total: -96 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 23:22:40 +01:00
Denys Vlasenko
a17d95d0d0 bc: rename lexer variables, use smallints where appropriate 
function                                             old     new   delta
bc_parse_expr_empty_ok                              1966    1972      +6
zdc_parse_expr                                       514     518      +4
zbc_lex_number                                       177     174      -3
dc_num_printChar                                      24      21      -3
bc_lex_whitespace                                     41      38      -3
bc_lex_name                                           69      66      -3
bc_lex_lineComment                                    36      33      -3
bc_lex_assign                                         31      28      -3
zbc_parse_name                                       472     468      -4
zbc_vm_process                                       836     831      -5
zdc_program_execStr                                  512     506      -6
zbc_parse_text_init                                   59      53      -6
bc_num_printNewline                                   51      45      -6
bc_num_printHex                                       67      61      -6
bc_num_printDigits                                   137     131      -6
zbc_program_assign                                   426     419      -7
zbc_parse_stmt_possibly_auto                        1682    1675      -7
zbc_program_exec                                    3977    3964     -13
zbc_program_print                                    683     656     -27
zbc_lex_next                                        2233    2161     -72
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/18 up/down: 10/-183)         Total: -173 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 22:55:54 +01:00
Denys Vlasenko
d279d809ac bc: fix "bc -s" only warning on "define f()<newline>", not exiting 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 18:28:56 +01:00
Denys Vlasenko
79587cb442 bc: POSIX error/warn functions can be 'z' functions too 
In non-interactive config, they either return 'success', or do not return.

function                                             old     new   delta
zbc_posix_error_fmt                                   41      39      -2
bc_parse_expr_empty_ok                              1751    1744      -7
zbc_parse_stmt_possibly_auto                        1322    1314      -8
------------------------------------------------------------------------------
(add/remove: 5/5 grow/shrink: 0/2 up/down: 118/-135)          Total: -17 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 18:11:41 +01:00
Denys Vlasenko
65b6fe09c4 bc: remove unnecessary NULL initializers 
function                                             old     new   delta
zbc_program_assign                                   442     426     -16
zbc_program_exec                                    4043    3977     -66
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-82)             Total: -82 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 17:21:31 +01:00
Denys Vlasenko
a5bf53e4bb bc: move relational LEXs before math LEXs - shorten dc_LEX_to_INST[] 
function                                             old     new   delta
dc_LEX_to_INST                                        48      42      -6
zdc_parse_expr                                       523     514      -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-15)             Total: -15 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 17:07:20 +01:00
Denys Vlasenko
4accb6bba8 bc: offset dc_LEX_to_INST[] start 
function                                             old     new   delta
zdc_parse_expr                                       516     523      +7
dc_LEX_to_INST                                        56      48      -8
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 7/-8)               Total: -1 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 15:29:33 +01:00
Denys Vlasenko
23ea0734e1 bc: rename BC_LEX_NLINE/WHITESPACE/STR/NAME/NUMBER to XC_LEX_ 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 15:05:49 +01:00
Denys Vlasenko
9d9c97efbd bc: separate many bc and dc LEX constants 
function                                             old     new   delta
zdc_parse_expr                                       510     516      +6
bc_parse_expr_empty_ok                              1963    1966      +3
dc_LEX_to_INST                                        83      56     -27
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 9/-27)             Total: -18 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 15:00:56 +01:00
Denys Vlasenko
69560f42da bc: rename several BC_LEX_OPs to XC_LEX_OPs. 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 14:14:23 +01:00
Denys Vlasenko
abf6cf6765 bc: move BC_LEX_OP_INC/DEC to the end of operation LEX constants 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 13:20:57 +01:00
Denys Vlasenko
7d9be0bc6d bc: rename BC_LEXs to XC_LEXs for common constants, and to DC_LEXs for dc-specific 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 12:25:20 +01:00
Denys Vlasenko
2097ac8d9e bc: move functions/macros around, no code changes 
Order now is:
enums/structures/defines,
utility/common functions,
parsing,
execution,
main loop,
main()

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 05:00:36 +01:00
Denys Vlasenko
a7732d1120 bc: rename common INST constants to XC_, dc-specific ones to DC_ 
This will assist in disentangling dc and bc LEX constants

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 04:26:07 +01:00
Denys Vlasenko
81293c8af0 dc: without -x, do not parse extended regs: 's p' means: store to ' ' reg, print 
function                                             old     new   delta
zbc_lex_next                                        2240    2233      -7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-7)               Total: -7 bytes
   text	   data	    bss	    dec	    hex	filename
 981437	    485	   7296	 989218	  f1822	busybox_old
 981412	    485	   7296	 989193	  f1809	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 02:01:32 +01:00
Denys Vlasenko
73b2c60825 bc: fix incorrect bit in BC_PARSE_EXPRS_BITS: 'limits' is not allowed 
Alsl, move and rename dc_lex_tokens[] to dc_char_to_LEX[]

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 01:04:21 +01:00
Denys Vlasenko
ad0bd381e9 bc: for "dc only" remove handling of LAST, move OBASE enums up to IBASE 
function                                             old     new   delta
dc_LEX_to_INST                                         -      82     +82
bc_parse_pushNUM                                       -      62     +62
zbc_program_num                                      981     978      -3
bc_result_free                                        46      43      -3
zbc_program_binOpPrep                                305     300      -5
static.msg                                            24      12     -12
zbc_program_exec                                    4013    3994     -19
zdc_parse_expr                                       583     507     -76
dc_parse_insts                                        83       -     -83
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 0/6 up/down: 144/-201)          Total: -57 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-24 00:50:32 +01:00
Denys Vlasenko
9471bd4660 bc: fix empty lines in dc generating "bad token" message 
function                                             old     new   delta
zdc_program_asciify                                    -     370    +370
zbc_program_pushArray                                  -     147    +147
zbc_vm_process                                       824     828      +4
zbc_program_exec                                    4182    4046    -136
zdc_program_printStream                              146       -    -146
zbc_program_read                                     268       -    -268
------------------------------------------------------------------------------
(add/remove: 2/2 grow/shrink: 1/1 up/down: 521/-550)          Total: -29 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-23 00:13:15 +01:00
Denys Vlasenko
01eb5e9da1 bc: shrink modular exponentiation code 
function                                             old     new   delta
zdc_program_modexp                                   721     694     -27

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-22 23:59:21 +01:00
Denys Vlasenko
1acac7f9c5 bc: do not yet allow 2^2.1 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-22 23:14:48 +01:00
Denys Vlasenko
a9f59db809 bc: avoid having to twiddle b->neg in zbc_num_p() 
function                                             old     new   delta
zbc_num_ulong_abs                                      -      70     +70
zbc_num_p                                            424     413     -11
zbc_num_ulong                                         81      21     -60
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/2 up/down: 70/-71)             Total: -1 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-22 21:52:30 +01:00
Denys Vlasenko
2ea8ddf8c2 bc: do not disallow powers to N.0000 degree - it's even shorter code 
function                                             old     new   delta
zbc_num_p                                            440     424     -16

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-22 21:45:18 +01:00
Denys Vlasenko
1557b76edd bc: shrink zbc_num_ulong() 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-22 21:37:46 +01:00
Denys Vlasenko
ec74a9c145 bc: make long-running dc drop data it does not need (when it can) 
function                                             old     new   delta
zbc_vm_process                                       765     824     +59

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-22 19:23:46 +01:00
Denys Vlasenko
5cf0b2d466 bc: unbreak "z function" macro machinery 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-22 18:24:19 +01:00
Denys Vlasenko
badf683b0a dc: unbreak interactive mode - was trying to get next tokens instead of executing 
function                                             old     new   delta
zbc_program_read                                       -     268    +268
zdc_program_printStream                                -     146    +146
zbc_program_exec                                    4046    4182    +136
zdc_program_execStr                                  472     512     +40
zdc_parse_exprs_until_eof                              -      26     +26
zbc_vm_process                                       740     765     +25
zbc_lex_next                                        2225    2240     +15
zdc_parse_expr                                       569     535     -34
zbc_program_pushArray                                147       -    -147
zdc_program_asciify                                  370       -    -370
------------------------------------------------------------------------------
(add/remove: 3/2 grow/shrink: 4/1 up/down: 656/-551)          Total: 105 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-22 18:10:50 +01:00
Denys Vlasenko
5daa1a0adf bc: move zbc_lex_next() out of zdc_parse_string() and zdc_parse_mem() 
function                                             old     new   delta
zdc_parse_mem                                         99      93      -6
zdc_parse_expr                                       586     569     -17
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-23)             Total: -23 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
 2018-12-22 16:41:23 +01:00