Denys Vlasenko
2fa11b6d35
bc: add comment about BC_NUM_DEF_SIZE
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-06 12:34:39 +01:00
Denys Vlasenko
1ff8862149
bc: fix for prev commit
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-06 12:06:16 +01:00
Denys Vlasenko
4c30406df6
bc: do not needlessly use strcat
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-06 12:01:17 +01:00
Denys Vlasenko
23c2e9fcf9
bc: unbreak "BC only" and "DC only" configs
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-06 11:43:17 +01:00
Denys Vlasenko
9ca9ef2d5b
dc: re-enable "tiny dc" implementation
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-06 11:31:14 +01:00
Denys Vlasenko
a6f84e1a35
bc: reuse common string
...
text data bss dec hex filename
987232 485 7296 995013 f2ec5 busybox_old
987205 485 7296 994986 f2eaa busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-06 11:10:11 +01:00
Denys Vlasenko
95f93bdc28
bc: hook up line editing with history buffer
...
function old new delta
push_input_byte - 65 +65
bc_vm_run 1875 1905 +30
bc_read_line 303 305 +2
bc_num_binary 148 150 +2
bc_num_ulong 103 92 -11
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 3/1 up/down: 99/-11) Total: 88 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-06 10:29:12 +01:00
Denys Vlasenko
ed849351d1
bc: add preparatory indent block, no code changes
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-06 10:26:13 +01:00
Denys Vlasenko
1a6a482d19
bc: if ^C handling is not selected, there is no interactive mode
...
function old new delta
packed_usage 33023 33076 +53
bc_num_s 252 246 -6
bc_vm_run 1859 1850 -9
bc_error_fmt 36 20 -16
bc_posix_error_fmt 58 41 -17
bc_read_line 202 168 -34
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/5 up/down: 53/-82) Total: -29 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-06 09:20:32 +01:00
Denys Vlasenko
54214c38db
bc: fix "bc -v" printing version info twice, and not exiting
...
function old new delta
bc_args 123 130 +7
bc_num_binary 150 148 -2
static.nullptr 4 - -4
bc_vm_run 1883 1874 -9
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/2 up/down: 7/-15) Total: -8 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-06 09:07:06 +01:00
Denys Vlasenko
1ff1c70944
bc: make bc_vm_envArgs() NULL-terminate its argv, simplify bc_vm_envLen()
...
function old new delta
bc_num_ulong 92 103 +11
static.nullptr - 4 +4
bc_args 120 123 +3
static.bc_args_env_name 4 - -4
dc_main 49 41 -8
bc_main 49 41 -8
bc_vm_run 1917 1883 -34
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 2/3 up/down: 18/-54) Total: -36 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-06 00:54:12 +01:00
Denys Vlasenko
e873ff9660
bc: if FEATURE_CLEAN_UP, clean up allocations on exits
...
Will have exitcode 1 even on "quit" and "halt", is it a problem?
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-06 00:29:22 +01:00
Denys Vlasenko
050b0fe9a7
bc: do not allow "()" as a valid expression
...
function old new delta
bc_parse_expr_empty_ok - 2178 +2178
bc_parse_expr 2178 49 -2129
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/1 up/down: 2178/-2129) Total: 49 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 22:40:44 +01:00
Denys Vlasenko
cca79a0064
bc: reorder functions, delete forward declarations, no code changes - part 2
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 21:15:46 +01:00
Denys Vlasenko
b0e3761410
bc: reorder functions, delete forward declarations, no code changes
...
Pure block moves of text
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 21:03:16 +01:00
Denys Vlasenko
aad652a69a
bc: remove unused strings
...
text data bss dec hex filename
987088 485 7296 994869 f2e35 busybox_old
987079 485 7296 994860 f2e2c busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 20:33:23 +01:00
Denys Vlasenko
452df923f7
bc: trivial simplification in bc_parse_return()
...
function old new delta
bc_parse_stmt 2276 2271 -5
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 20:28:26 +01:00
Denys Vlasenko
657d6bb262
bc: fix "warning: 's' may be used uninitialized in this function"
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 20:25:03 +01:00
Denys Vlasenko
bcb62a7f11
bc: code shrink
...
function old new delta
bc_parse_expr 2151 2178 +27
bc_parse_exprs 60 - -60
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 2/0 up/down: 27/-60) Total: -33 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 20:17:48 +01:00
Denys Vlasenko
6543758b13
bc: code shrink
...
function old new delta
bc_parse_operator 181 184 +3
bc_parse_ops 50 25 -25
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 3/-25) Total: -22 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 19:37:19 +01:00
Denys Vlasenko
f381a88234
bc: make division operation interruptible
...
function old new delta
bc_num_d 564 584 +20
bc_num_r 230 245 +15
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 35/0) Total: 35 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 19:21:34 +01:00
Denys Vlasenko
b3cb90124b
bc: use unsigned division by 10 instead of signed
...
function old new delta
bc_num_k 990 988 -2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 19:05:32 +01:00
Denys Vlasenko
06fa65bd95
bc: move ^C check fro power calculation to multiplication
...
function old new delta
bc_num_k 971 990 +19
bc_num_p 507 478 -29
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 19/-29) Total: -10 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 19:00:58 +01:00
Denys Vlasenko
b692c2faf1
bc: bc_num_k(): move carry,i,j,len to inner scope
...
This might help compiler
function old new delta
bc_num_k 957 971 +14
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 18:56:14 +01:00
Denys Vlasenko
0d7e46b1de
bc: tweak error messages
...
function old new delta
bc_lex_token 1285 1299 +14
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 18:31:19 +01:00
Denys Vlasenko
0064679915
bc: fix inverted POSIXness test, improve messages, commonalize message strings
...
function old new delta
bc_lex_token 1251 1285 +34
bc_POSIX_does_not_allow_bool_ops_this_is_bad - 25 +25
bc_POSIX_does_not_allow_empty_X_expression_in_for - 20 +20
bc_POSIX_does_not_allow - 20 +20
bc_parse_expr 2146 2151 +5
bc_num_ulong 103 92 -11
------------------------------------------------------------------------------
(add/remove: 3/0 grow/shrink: 2/1 up/down: 104/-11) Total: 93 bytes
text data bss dec hex filename
987210 485 7296 994991 f2eaf busybox_old
987084 485 7296 994865 f2e31 busybox_unstripped
^^^^^^^
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 18:12:27 +01:00
Denys Vlasenko
5318f81fbe
bc: print error line numbers
...
FILE:
print 1
print "
$ busybox bc -q FILE
bc: FILE:2: string end could not be found
ready for more input
>>> _
function old new delta
bc_verror_msg - 99 +99
bc_lex_file 12 28 +16
bc_lex_next 77 92 +15
dc_lex_token 687 701 +14
bc_lex_token 1237 1251 +14
bc_posix_error_fmt 90 58 -32
bc_error_fmt 70 36 -34
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 4/2 up/down: 158/-66) Total: 92 bytes
text data bss dec hex filename
987108 485 7296 994889 f2e49 busybox_old
987210 485 7296 994991 f2eaf busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 17:48:01 +01:00
Denys Vlasenko
08c033c406
bc: optimize pushing zero bytes to vectors
...
function old new delta
bc_vec_pushZeroByte - 10 +10
bc_vm_run 1919 1917 -2
bc_vec_string 61 59 -2
bc_vec_concat 68 66 -2
bc_parse_create 170 168 -2
bc_lex_number 298 296 -2
dc_lex_token 691 687 -4
bc_read_line 314 303 -11
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/7 up/down: 10/-25) Total: -15 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 16:55:08 +01:00
Denys Vlasenko
0409ad36a1
bc: restore printing of script name on errors
...
Examples:
On stdin, no file name is available:
$ echo 'print "' | busybox bc
bc: string end could not be found
When the same error is in file:
$ busybox bc FILE
bc 1.30.0.git
Copyright (c) 2018 Gavin D. Howard and contributors
Report bugs at: https://github.com/gavinhoward/bc
This is free software with ABSOLUTELY NO WARRANTY
FILE: string end could not be found
ready for more input
>>>
Line number printing to be added later...
function old new delta
bc_error_fmt 38 70 +32
bc_posix_error_fmt 60 90 +30
bc_vm_run 1900 1919 +19
bc_program_read 338 355 +17
bc_lex_file 15 12 -3
bc_program_stdin_name 8 - -8
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 4/1 up/down: 98/-11) Total: 87 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 16:39:22 +01:00
Denys Vlasenko
0ad36c46c7
bc: do not check for errors when parsing/running internal library
...
function old new delta
bc_lib_name 4 - -4
bc_vm_run 1921 1900 -21
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/1 up/down: 0/-25) Total: -25 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 16:21:43 +01:00
Denys Vlasenko
24fb2cd62f
bc: shrink error handling code by enabling tail-call optimization
...
function old new delta
bc_posix_error_fmt - 60 +60
bc_error_fmt - 38 +38
bc_error_bad_character - 17 +17
bc_parse_auto 302 313 +11
bc_num_ulong 93 103 +10
bc_error_variable_is_wrong_type - 10 +10
bc_error_stack_has_too_few_elements - 10 +10
bc_error_nested_read_call - 10 +10
bc_error_bad_token - 10 +10
bc_error_bad_expression - 10 +10
bc_num_d 561 564 +3
bc_program_assign 484 486 +2
dc_parse_parse 60 59 -1
bc_program_num 1130 1129 -1
bc_program_call 367 366 -1
bc_parse_stmt 2277 2276 -1
bc_lex_number 299 298 -1
bc_lex_name 91 90 -1
bc_func_insert 98 97 -1
bc_num_shift 74 72 -2
bc_vm_run 1924 1921 -3
bc_parse_endBody 424 420 -4
bc_lex_next 81 77 -4
bc_program_read 343 338 -5
bc_program_asciify 469 464 -5
bc_program_pushVar 221 215 -6
bc_program_print 784 778 -6
bc_program_prep 99 93 -6
bc_program_assignStr 167 161 -6
bc_parse_else 143 137 -6
bc_parse_body 124 118 -6
dc_parse_register 61 53 -8
dc_lex_token 699 691 -8
bc_program_modexp 756 746 -10
bc_parse_name 593 581 -12
dc_parse_expr 775 762 -13
bc_program_copyToVar 336 323 -13
bc_program_binOpPrep 324 311 -13
bc_program_execStr 561 543 -18
bc_program_exec 4150 4132 -18
bc_parse_parse 483 464 -19
bc_error 38 14 -24
bc_lex_token 1266 1237 -29
bc_posix_error 60 14 -46
bc_parse_expr 2194 2146 -48
------------------------------------------------------------------------------
(add/remove: 8/0 grow/shrink: 4/33 up/down: 191/-345) Total: -154 bytes
text data bss dec hex filename
987226 485 7296 995007 f2ebf busybox_old
987072 485 7296 994853 f2e25 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 16:03:46 +01:00
Denys Vlasenko
f359e004b0
bc: make 2^1000000 interruptible faster
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
68cc0a676e
bc: remove tabs from internal library
...
function old new delta
bc_lib 1877 1674 -203
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
51fb8aa5c1
bc: store library in ASCII, shrink keyword parsing code
...
Also, use ARRAY_SIZE() where appropriate
function old new delta
bc_lib 1878 1877 -1
bc_program_index 66 64 -2
bc_lex_token 1282 1266 -16
bc_lex_kws 220 160 -60
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/4 up/down: 0/-79) Total: -79 bytes
text data bss dec hex filename
987518 485 7296 995299 f2fe3 busybox_old
987440 485 7296 995221 f2f95 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
cb9a99f3bb
bc: drop bc_map_init() macro
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
7d62801db9
bc: create a few common functions
...
function old new delta
bc_char_vec_init - 12 +12
bc_vec_pop_all - 8 +8
bc_program_index 64 66 +2
bc_vec_string 64 61 -3
bc_vec_free 27 24 -3
bc_read_line 317 314 -3
bc_program_execStr 564 561 -3
bc_program_exec 4153 4150 -3
bc_program_copyToVar 340 336 -4
bc_parse_create 175 170 -5
dc_lex_token 705 699 -6
bc_program_reset 78 72 -6
bc_lex_number 305 299 -6
bc_program_read 353 343 -10
bc_program_addFunc 225 209 -16
bc_vm_run 1942 1924 -18
bc_parse_reset 181 163 -18
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 1/14 up/down: 22/-104) Total: -82 bytes
text data bss dec hex filename
987600 485 7296 995381 f3035 busybox_old
987518 485 7296 995299 f2fe3 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
d5f7703abb
bc: rewrite "BOOL * EXPR" idiom as if() statement
...
function old new delta
bc_program_index 66 64 -2
bc_program_num 1147 1130 -17
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-19) Total: -19 bytes
text data bss dec hex filename
987619 485 7296 995400 f3048 busybox_old
987600 485 7296 995381 f3035 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
17c5472c5a
bc: switch to SA_RESTART signal handling
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
d70d4a0235
bc: get rid of G.tty and G.flags
...
G.flags == option_mask32
function old new delta
bc_args 97 120 +23
dc_main 48 49 +1
bc_main 48 49 +1
bc_error 42 38 -4
bc_posix_error 65 60 -5
bc_read_line 325 317 -8
dc_lex_token 714 705 -9
bc_vm_run 2039 1942 -97
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/5 up/down: 25/-123) Total: -98 bytes
text data bss dec hex filename
987717 485 7296 995498 f30aa busybox_old
987619 485 7296 995400 f3048 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
9b70f197b4
bc: convert all status codes, remove bc_err_msgs[], bc_vm_error(), bc_vm_posixError()
...
function old new delta
bc_posix_error - 65 +65
bc_vm_run 1995 2039 +44
bc_err_line 7 - -7
bc_num_ulong 103 93 -10
bc_parse_parse 495 483 -12
bc_err_fmt 12 - -12
bc_warn_fmt 14 - -14
bc_parse_expr 2210 2194 -16
bc_program_reset 105 78 -27
bc_vm_process 130 94 -36
bc_parse_stmt 2313 2277 -36
bc_err_msgs 60 - -60
bc_lex_token 1367 1282 -85
bc_vm_error 143 - -143
bc_vm_posixError 189 - -189
------------------------------------------------------------------------------
(add/remove: 1/6 grow/shrink: 1/7 up/down: 109/-647) Total: -538 bytes
text data bss dec hex filename
988258 485 7296 996039 f32c7 busybox_old
987717 485 7296 995498 f30aa busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
60cf747b6c
bc: convert all non-POSIX BC_STATUS_foo codes
...
function old new delta
bc_program_asciify - 469 +469
bc_parse_parse 432 495 +63
dc_parse_expr 727 775 +48
bc_vm_run 1955 1995 +40
bc_program_num 1115 1147 +32
bc_program_binOpPrep 296 324 +28
static.msg - 24 +24
bc_parse_name 570 593 +23
bc_lex_token 1344 1367 +23
dc_lex_token 695 714 +19
bc_num_ulong 85 103 +18
bc_program_read 336 353 +17
dc_parse_parse 47 60 +13
bc_parse_stmt 2301 2313 +12
bc_parse_auto 291 302 +11
bc_program_prep 89 99 +10
bc_lex_next 71 81 +10
dc_parse_register 52 61 +9
bc_program_print 775 784 +9
bc_func_insert 89 98 +9
bc_program_assignStr 159 167 +8
bc_program_assign 476 484 +8
bc_parse_body 116 124 +8
bc_lex_name 83 91 +8
bc_program_pushVar 215 221 +6
bc_parse_text 141 147 +6
bc_num_shift 68 74 +6
bc_num_p 472 478 +6
bc_program_execStr 559 564 +5
bc_parse_else 139 143 +4
bc_lex_number 301 305 +4
bc_num_d 558 561 +3
bc_parse_endBody 422 424 +2
bc_num_r 231 230 -1
bc_program_copyToVar 343 340 -3
bc_program_call 372 367 -5
bc_parse_expr 2215 2210 -5
bc_program_modexp 763 756 -7
bc_err_msgs 164 60 -104
bc_program_pushArray 136 - -136
bc_program_exec 4453 4153 -300
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 31/7 up/down: 961/-561) Total: 400 bytes
text data bss dec hex filename
987766 485 7296 995547 f30db busybox_old
988258 485 7296 996039 f32c7 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
d38af48e0a
bc: convert BC_STATUS_EXEC_SIGNAL - its message string was never used
...
function old new delta
bc_vm_process 132 130 -2
bc_err_msgs 168 164 -4
dc_parse_parse 52 47 -5
bc_parse_reset 187 181 -6
bc_program_ready_msg 22 - -22
bc_program_exec 4478 4453 -25
bc_parse_parse 461 432 -29
bc_program_reset 159 105 -54
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/7 up/down: 0/-147) Total: -147 bytes
text data bss dec hex filename
987923 485 7296 995704 f3178 busybox_old
987766 485 7296 995547 f30db busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
abbc433d29
bc: convert BC_STATUS_PARSE_NO_AUTO
...
function old new delta
bc_parse_auto 275 291 +16
bc_err_msgs 172 168 -4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 16/-4) Total: 12 bytes
text data bss dec hex filename
987911 485 7296 995692 f316c busybox_old
987923 485 7296 995704 f3178 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
04a1c763a6
bc: convert BC_STATUS_EXEC_MISMATCHED_PARAMS and BC_STATUS_EXEC_UNDEFINED_FUNC
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
a02f84472a
bc: BC_STATUS_VEC_ITEM_EXISTS is not a real error code, its message was never used
...
It was only used to indicate rusult of bc_map_insert() - did we insert, or
did we find that this key is already in the map?
function old new delta
bc_map_insert 142 145 +3
bc_program_addFunc 226 225 -1
bc_err_msgs 184 180 -4
bc_program_search 152 143 -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 3/-14) Total: -11 bytes
text data bss dec hex filename
987904 485 7296 995685 f3165 busybox_old
987873 485 7296 995654 f3146 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
bc5ce66617
bc: simplify bc_lex_comment()
...
function old new delta
bc_lex_token 1369 1344 -25
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
c1c2470f84
bc: handle BIN_FILE and LEX_BAD_CHAR errors at the site of detection
...
The most informative message can be generated at the location
where error is detected. The "error codes" are stupid:
print error meesage immediately, then just return "there was an error"
indicator.
All error codes will be converted. For now, converting these two.
For now, this and following changes will degrade error messages
quality. For example, file name and line number printouts may be lost.
This will be re-added later.
This change anlso fixes handling of invalid stdin input:
this used to cause interactive bc to exit:
....
>>> ς
bc: illegal character 0xcf
bc: illegal character 0x82
>>> _
function old new delta
bc_error - 42 +42
bc_lex_token 1333 1369 +36
dc_lex_token 675 695 +20
bc_read_line 311 325 +14
bc_num_a 456 454 -2
bc_err_msgs 188 184 -4
bc_num_ulong 95 85 -10
bc_vm_run 1984 1955 -29
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 3/4 up/down: 112/-45) Total: 67 bytes
text data bss dec hex filename
987828 485 7296 995609 f3119 busybox_old
987929 485 7296 995710 f317e busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
d4744adf35
bc: eliminate BC_STATUS_INPUT_EOF
...
function old new delta
fflush_and_check - 36 +36
bc_num_a 445 456 +11
bc_num_ulong 85 95 +10
bc_vm_run 1978 1984 +6
bc_num_s 246 252 +6
bc_err_msgs 192 188 -4
quit 38 32 -6
bc_vm_process 139 132 -7
bc_program_reset 172 159 -13
bc_parse_create 192 175 -17
bc_read_line 349 311 -38
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 4/6 up/down: 69/-85) Total: -16 bytes
text data bss dec hex filename
987844 485 7296 995625 f3129 busybox_old
987828 485 7296 995609 f3119 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
cfdc1334c3
bc: handle "limits" and "quit" immediately at parse time
...
No need to propagate a special exit code.
function old new delta
bc_parse_stmt 2197 2301 +104
quit - 38 +38
bc_read_line 344 349 +5
bc_program_reset 174 172 -2
bc_num_s 252 246 -6
bc_num_a 454 445 -9
bc_parse_parse 471 461 -10
bc_num_ulong 95 85 -10
bc_program_exec 4500 4478 -22
bc_vm_run 2006 1978 -28
bc_vm_process 291 139 -152
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/8 up/down: 147/-239) Total: -92 bytes
text data bss dec hex filename
987936 485 7296 995717 f3185 busybox_old
987844 485 7296 995625 f3129 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
01cabafd05
bc": drop unused error codes and strings
...
function old new delta
bc_err_msgs 216 192 -24
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-24) Total: -24 bytes
text data bss dec hex filename
988122 485 7296 995903 f323f busybox_old
987936 485 7296 995717 f3185 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
b8860a8892
bc: remove "error ids": serve no useful purpose, error message should be explanatory enough
...
function old new delta
bc_warn_fmt 17 14 -3
bc_err_fmt 15 12 -3
bc_vm_posixError 205 189 -16
bc_vm_error 156 138 -18
bc_errs 28 - -28
bc_err_ids 58 - -58
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 0/4 up/down: 0/-126) Total: -126 bytes
text data bss dec hex filename
988288 485 7296 996069 f32e5 busybox_old
988122 485 7296 995903 f323f busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
1f67e935ac
bc: reduce forward declarations
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
d9d66556d7
bc: use smaller datatypes for limits, match GNU bc 'limits' output
...
function old new delta
bc_vm_process 315 291 -24
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-24) Total: -24 bytes
text data bss dec hex filename
988303 485 7296 996084 f32f4 busybox_old
988273 485 7296 996054 f32d6 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
416ce76bcd
bc: better handle optional args of bc_program_pushVar()
...
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
9721f6c8b0
bc: tweak help text
...
-v is supported but not shown
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
a0c421c118
bc: simplify bc_vm_stdin()
...
function old new delta
bc_vm_run 2020 2006 -14
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
71e1fc6b37
bc: only check for ^C in bc_program_exec() main loop
...
Checking it in individual operations such as SQRT is not necessary
since they usually do not take very long to complete. We repeatedly return
to main loop.
TODO: re-add more fine-grained ^C checks - but only with examples where it is
actually needed. E.g. I suspect simplest ops like addition or compare won't need it.
function old new delta
bc_program_index 66 64 -2
bc_num_s 258 246 -12
bc_num_cmp 294 275 -19
bc_num_compare 84 59 -25
bc_num_subArrays 74 47 -27
bc_num_a 474 445 -29
bc_program_exec 4530 4500 -30
bc_num_p 518 472 -46
bc_num_d 604 558 -46
bc_num_k 1005 957 -48
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/10 up/down: 0/-284) Total: -284 bytes
text data bss dec hex filename
988601 485 7296 996382 f341e busybox_old
988317 485 7296 996098 f3302 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
df51539ed0
bc: simpler calling convention for bc_read_file(), bc_program_search()
...
function old new delta
bc_vm_run 1854 2020 +166
bc_program_assign 482 476 -6
bc_program_pushVar 225 215 -10
bc_program_call 366 356 -10
bc_program_num 1126 1115 -11
bc_program_copyToVar 354 343 -11
bc_program_search 164 152 -12
bc_program_execStr 573 559 -14
bc_program_exec 4544 4530 -14
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/8 up/down: 166/-88) Total: 78 bytes
text data bss dec hex filename
988523 485 7296 996304 f33d0 busybox_old
988601 485 7296 996382 f341e busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
e3b4f23cf3
bc: bc_num_ulong2num(), bc_program_pushGlobal(), bc_program_stackLen() never fail
...
function old new delta
bc_num_ulong2num 66 62 -4
bc_num_printNum 572 563 -9
bc_program_exec 4562 4544 -18
bc_program_num 1147 1126 -21
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/4 up/down: 0/-52) Total: -52 bytes
text data bss dec hex filename
988575 485 7296 996356 f3404 busybox_old
988523 485 7296 996304 f33d0 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
a1d3ca2455
bc: stop passing around pointers to G.prog, they are all constant
...
function old new delta
bc_program_exec 4523 4562 +39
bc_program_assign 450 482 +32
bc_program_assignStr 131 159 +28
bc_program_print 762 775 +13
bc_program_num 1134 1147 +13
bc_program_search 154 164 +10
bc_num_ulong 85 95 +10
dc_parse_expr 719 727 +8
bc_program_retire 34 40 +6
bc_program_reset 168 174 +6
bc_program_binOpRetire 50 56 +6
bc_program_addFunc 220 226 +6
bc_program_prep 88 89 +1
dc_parse_init 18 17 -1
bc_program_copyToVar 355 354 -1
bc_parse_text 142 141 -1
bc_parse_number 88 87 -1
bc_parse_init 18 17 -1
bc_parse_endBody 423 422 -1
common_parse_init 29 26 -3
bc_parse_string 103 100 -3
bc_parse_addFunc 44 41 -3
bc_program_call 371 366 -5
bc_program_binOpPrep 301 296 -5
bc_program_read 342 336 -6
bc_parse_create 198 192 -6
bc_program_pushArray 143 136 -7
bc_parse_reset 194 187 -7
bc_vm_process 323 315 -8
bc_program_pushVar 236 225 -11
bc_vm_run 1872 1854 -18
bc_parse_name 590 570 -20
bc_program_execStr 594 573 -21
bc_program_modexp 793 763 -30
bc_program_printStream 172 - -172
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 13/21 up/down: 178/-331) Total: -153 bytes
text data bss dec hex filename
988728 485 7296 996509 f349d busybox_old
988575 485 7296 996356 f3404 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
f6c1da5ff3
bc: select parse_init() and parse_expr() using IS_BC, not function pointers
...
function old new delta
common_parse_expr - 62 +62
common_parse_init - 29 +29
dc_parse_parse 53 52 -1
dc_parse_expr 723 719 -4
bc_program_execStr 606 594 -12
dc_parse_init 33 18 -15
bc_parse_init 33 18 -15
bc_parse_expression 39 - -39
bc_vm_run 1923 1872 -51
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 0/6 up/down: 91/-137) Total: -46 bytes
text data bss dec hex filename
988774 485 7296 996555 f34cb busybox_old
988728 485 7296 996509 f349d busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
785e4b3057
bc: propagate fixed arguments into callees
...
Looks like there is only one "BcProgram" object, &G.prog.
function old new delta
bc_program_exec 4401 4523 +122
bc_program_execStr 579 606 +27
bc_program_read 323 342 +19
bc_args 83 97 +14
bc_vm_process 327 323 -4
bc_num_ulong 95 85 -10
dc_main 62 48 -14
bc_main 62 48 -14
bc_vm_run 2317 1923 -394
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/5 up/down: 182/-436) Total: -254 bytes
text data bss dec hex filename
989028 485 7296 996809 f35c9 busybox_old
988774 485 7296 996555 f34cb busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
ab3c568fd8
bc: simplify ^C handling
...
It's still buggy: if SIGINT would interrupt e.g. output write(),
the result would not be as intended:
>>> while ( 1 ) print 1
...
11111111111111111111111111111111111111111111111111111111111111111111\
11111111111111111111111111111111111111111111111111111111111111111111\
^Cready for more input
interrupt (type "quit" to exit)
>>> bc: output error
function old new delta
dc_parse_parse 58 53 -5
bc_parse_parse 476 471 -5
bc_num_d 609 604 -5
bc_num_cmp 299 294 -5
bc_num_compare 90 84 -6
bc_parse_expr 2222 2215 -7
bc_num_subArrays 82 74 -8
dc_main 72 62 -10
bc_main 72 62 -10
bc_program_exec 4413 4401 -12
bc_num_a 491 474 -17
bc_read_line 364 344 -20
bc_num_p 540 518 -22
bc_program_reset 192 168 -24
bc_num_k 1031 1005 -26
bc_vm_run 2382 2317 -65
bc_vm_sig 97 - -97
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/16 up/down: 0/-344) Total: -344 bytes
text data bss dec hex filename
989372 485 7296 997153 f3721 busybox_old
989028 485 7296 996809 f35c9 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
6d9146ab56
bc: convert to "G trick" - this returns bc to zero bss increase
...
function old new delta
bc_num_p 518 540 +22
bc_num_k 1010 1031 +21
bc_vm_process 312 327 +15
bc_program_exec 4401 4413 +12
bc_vm_posixError 194 205 +11
bc_num_a 480 491 +11
bc_program_reset 182 192 +10
bc_vm_sig 88 97 +9
bc_vm_error 148 156 +8
bc_parse_expr 2215 2222 +7
bc_num_compare 84 90 +6
dc_parse_parse 53 58 +5
dc_lex_token 670 675 +5
bc_read_line 359 364 +5
bc_parse_parse 471 476 +5
bc_num_cmp 294 299 +5
bc_num_subArrays 84 82 -2
bc_num_d 614 609 -5
dc_main 80 72 -8
bc_main 80 72 -8
bcg 40 - -40
bc_vm_run 2569 2382 -187
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 16/5 up/down: 157/-250) Total: -93 bytes
text data bss dec hex filename
989425 485 7336 997246 f377e busybox_old
989372 485 7296 997153 f3721 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
5a9fef5b59
bc: simplify, and restore ^C, fix ^D handling
...
^D used to enter infinite loop
function old new delta
bc_read_line 342 359 +17
bc_args_opt 8 - -8
dc_sig_msg 31 - -31
bc_sig_msg 34 - -34
bc_vm_run 2608 2569 -39
bc_args 123 83 -40
bc_args_lopt 81 - -81
------------------------------------------------------------------------------
(add/remove: 0/4 grow/shrink: 1/2 up/down: 17/-233) Total: -216 bytes
text data bss dec hex filename
989491 485 7336 997312 f37c0 busybox_old
989425 485 7336 997246 f377e busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:43:35 +01:00
Denys Vlasenko
00d7779a35
bc: simplify, stop testing for IO errors on every output
...
function old new delta
bc_read_line 297 342 +45
bc_vm_run 2601 2608 +7
bc_program_reset 178 182 +4
bc_args 125 123 -2
dc_name 3 - -3
bc_name 3 - -3
bc_program_printStream 176 172 -4
bcg 48 40 -8
dc_main 97 80 -17
bc_main 97 80 -17
bc_vm_fflush 21 - -21
bc_vm_puts 23 - -23
bc_vm_printf 36 - -36
bc_vm_putchar 46 - -46
bc_vm_exit 46 - -46
bc_vm_process 361 312 -49
bc_vm_info 76 19 -57
bc_copyright 155 - -155
------------------------------------------------------------------------------
(add/remove: 0/8 grow/shrink: 3/7 up/down: 56/-487) Total: -431 bytes
text data bss dec hex filename
989722 485 7344 997551 f38af busybox_old
989491 485 7336 997312 f37c0 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:42:52 +01:00
Denys Vlasenko
ef869ec728
bc: fix warnings, initial cleanups
...
function old new delta
bc_program_exec - 4401 +4401
bc_vm_run - 2601 +2601
bc_parse_expr - 2215 +2215
bc_parse_stmt - 2197 +2197
bc_lib - 1878 +1878
bc_lex_token - 1333 +1333
bc_program_num - 1134 +1134
bc_num_k - 1010 +1010
bc_program_modexp - 793 +793
bc_program_print - 762 +762
dc_parse_expr - 723 +723
dc_lex_token - 670 +670
bc_num_d - 614 +614
bc_parse_name - 590 +590
bc_program_execStr - 579 +579
bc_num_printNum - 572 +572
bc_num_p - 518 +518
bc_num_a - 480 +480
bc_parse_parse - 471 +471
bc_program_assign - 450 +450
bc_parse_endBody - 423 +423
bc_program_call - 371 +371
dc_lex_tokens - 364 +364
bc_vm_process - 361 +361
bc_program_copyToVar - 355 +355
dc_parse_insts - 332 +332
bc_program_read - 323 +323
bc_program_binOpPrep - 301 +301
bc_lex_number - 301 +301
bc_read_line - 297 +297
bc_num_cmp - 294 +294
bc_num_m - 287 +287
bc_parse_auto - 275 +275
bc_num_s - 258 +258
bc_program_pushVar - 236 +236
bc_num_r - 231 +231
bc_program_addFunc - 220 +220
bc_lex_kws - 220 +220
bc_err_msgs - 216 +216
bc_parse_create - 198 +198
bc_vm_posixError - 194 +194
bc_parse_reset - 194 +194
bc_parse_operator - 181 +181
bc_program_reset - 178 +178
bc_program_printStream - 176 +176
bc_num_divmod - 168 +168
bc_copyright - 155 +155
bc_program_search - 154 +154
bc_num_binary - 150 +150
bc_vm_error - 148 +148
bc_program_pushArray - 143 +143
bc_parse_text - 142 +142
bc_num_printDigits - 142 +142
bc_map_insert - 142 +142
bc_parse_else - 139 +139
bc_program_assignStr - 131 +131
bc_args - 125 +125
dc_parse_mem - 116 +116
bc_parse_body - 116 +116
bc_num_split - 113 +113
bc_num_sub - 112 +112
bc_num_add - 112 +112
packed_usage 32958 33066 +108
bc_num_rem - 104 +104
bc_parse_string - 103 +103
bc_main - 97 +97
bc_num_ulong - 95 +95
bc_func_insert - 89 +89
bc_vm_sig - 88 +88
bc_program_prep - 88 +88
bc_parse_number - 88 +88
bc_array_expand - 88 +88
bc_num_subArrays - 84 +84
bc_num_compare - 84 +84
bc_lex_name - 83 +83
bc_args_lopt - 81 +81
bc_parse_pushIndex - 80 +80
bc_num_mul - 80 +80
bc_num_mod - 80 +80
bc_num_div - 80 +80
bc_vm_info - 76 +76
bc_program_name - 75 +75
bc_map_find - 71 +71
bc_lex_next - 71 +71
bc_num_printHex - 70 +70
bc_vec_concat - 68 +68
bc_num_shift - 68 +68
bc_num_extend - 68 +68
bc_program_index - 66 +66
bc_num_ulong2num - 66 +66
bc_num_retireMul - 66 +66
bc_parse_noElse - 65 +65
bc_vec_string - 64 +64
bc_parse_pushName - 63 +63
bc_parse_exprs - 60 +60
bc_err_ids - 58 +58
bc_result_free - 57 +57
bc_vec_npop - 55 +55
dc_parse_parse - 53 +53
bc_vec_push - 53 +53
bc_parse_free - 53 +53
bc_num_inv - 53 +53
dc_parse_register - 52 +52
dc_lex_regs - 52 +52
bc_lex_whitespace - 52 +52
bc_num_copy - 51 +51
bc_program_binOpRetire - 50 +50
bc_parse_ops - 50 +50
bc_map_index - 50 +50
bcg - 48 +48
bc_num_init - 48 +48
bc_parse_startBody - 47 +47
bc_num_pow - 47 +47
bc_vm_putchar - 46 +46
bc_vm_exit - 46 +46
bc_num_clean - 45 +45
bc_parse_addFunc - 44 +44
bc_vec_grow - 42 +42
bc_program_len - 42 +42
bc_num_truncate - 42 +42
bc_array_init - 42 +42
bc_parse_expression - 39 +39
bc_lex_lineComment - 39 +39
bc_num_expand - 38 +38
bc_vec_init - 37 +37
bc_vm_printf - 36 +36
bc_num_printNewline - 36 +36
bc_func_free - 35 +35
bc_sig_msg - 34 +34
bc_program_retire - 34 +34
bc_lex_assign - 34 +34
dc_parse_init - 33 +33
bc_parse_init - 33 +33
dc_sig_msg - 31 +31
bc_vec_expand - 30 +30
bc_num_ten - 30 +30
bc_num_one - 28 +28
bc_errs - 28 +28
bc_vec_free - 27 +27
bc_program_ops - 24 +24
bc_vm_puts - 23 +23
bc_num_printChar - 23 +23
bc_program_ready_msg - 22 +22
bc_vm_fflush - 21 +21
dc_main 77 97 +20
bc_parse_next_rel - 20 +20
bc_parse_next_read - 20 +20
bc_parse_next_print - 20 +20
bc_parse_next_param - 20 +20
bc_parse_next_for - 20 +20
bc_parse_next_expr - 20 +20
bc_parse_next_elem - 20 +20
bc_warn_fmt - 17 +17
bc_vec_pushByte - 15 +15
bc_string_free - 15 +15
bc_num_setToZero - 15 +15
bc_num_free - 15 +15
bc_lex_file - 15 +15
bc_id_free - 15 +15
bc_err_fmt - 15 +15
bc_vec_item_rev - 14 +14
bc_id_cmp - 12 +12
bc_num_zero - 11 +11
bc_vec_item - 9 +9
bc_program_stdin_name - 8 +8
bc_program_scale - 8 +8
bc_args_opt - 8 +8
bc_func_read - 7 +7
bc_func_main - 7 +7
bc_err_line - 7 +7
bc_lib_name - 4 +4
bc_args_env_name - 4 +4
applet_main 1604 1608 +4
dc_name - 3 +3
bc_name - 3 +3
applet_names 2781 2784 +3
static.bases 5 - -5
check_under 20 - -20
pop 24 - -24
print_no_pop 32 - -32
sub 34 - -34
divide 34 - -34
mul 37 - -37
add 37 - -37
push 38 - -38
print_stack_no_pop 40 - -40
not 72 - -72
set_output_base 95 - -95
or 103 - -103
eor 103 - -103
and 103 - -103
mod 105 - -105
stack_machine 116 - -116
operators 144 - -144
print_base 230 - -230
------------------------------------------------------------------------------
(add/remove: 173/20 grow/shrink: 4/0 up/down: 38089/-1372) Total: 36717 bytes
text data bss dec hex filename
950181 485 7296 957962 e9e0a busybox_old
989722 485 7344 997551 f38af busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:42:48 +01:00
Gavin Howard
01055ba89a
bc: new applet, throws warning
...
Signed-off-by: Gavin Howard <yzena.tech@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-05 15:40:38 +01:00
