Denys Vlasenko [Tue, 11 Dec 2018 22:50:14 +0000 (23:50 +0100)]
bc: in non-interactive config, POSIX error functions never return nonzero
function old new delta
bc_parse_expr_empty_ok 2036 2032 -4
bc_parse_stmt 1767 1753 -14
bc_lex_token 1259 1228 -31
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-49) Total: -49 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Dec 2018 22:22:52 +0000 (23:22 +0100)]
bc: use common_parse_init() in bc_vm_init()
function old new delta
common_parse_init 26 45 +19
dc_parse_init 17 - -17
bc_parse_init 17 - -17
bc_vm_init 744 725 -19
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 1/1 up/down: 19/-53) Total: -34 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Dec 2018 21:26:38 +0000 (22:26 +0100)]
bc: fix EOF handling in bc_program_read()
$ bc -q
read()
2^D^D2
^ prints the result of read()'ed expression
function old new delta
zbc_program_print 629 642 +13
bc_program_read 322 312 -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 13/-10) Total: 3 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Dec 2018 20:21:14 +0000 (21:21 +0100)]
bc: tweak comment
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Dec 2018 19:57:53 +0000 (20:57 +0100)]
bc: convert bc_program_asciify to "z" function
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Dec 2018 18:52:25 +0000 (19:52 +0100)]
bc: shrink bc_program_printString
function old new delta
zbc_program_print 665 642 -23
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Dec 2018 18:42:05 +0000 (19:42 +0100)]
bc: convert zbc_program_op to "z" function, fix a thinko in prev commits
function old new delta
zbc_program_assign 448 447 -1
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Dec 2018 18:37:00 +0000 (19:37 +0100)]
bc: convert bc_program_logical to "z" function
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Dec 2018 18:29:35 +0000 (19:29 +0100)]
bc: do not use "(cond ? f1 : f2)(params)" idiom, it messes up static function optimizations
With direct calls, GCC no longer thinks that we take addresses of the functions,
and can use "more optimal" internal ABI for _all_ calls to these functions,
not only at this callsite. On i486, regparm is used, and:
function old new delta
zbc_num_inv 56 57 +1
zbc_num_k 852 851 -1
zbc_program_modexp 558 556 -2
zbc_num_d 541 539 -2
bc_num_ulong2num 59 57 -2
zbc_program_num 840 836 -4
bc_num_zero 11 7 -4
bc_num_one 28 24 -4
bc_program_exec 3928 3918 -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/8 up/down: 1/-29) Total: -28 bytes
text data bss dec hex filename
982237 485 7296 990018 f1b42 busybox_old
982209 485 7296 989990 f1b26 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Dec 2018 18:04:44 +0000 (19:04 +0100)]
bc: convert arithmetic calc functions to "z" logic
In order for magic macros to work, a bit of reordering was necessary.
function old new delta
zbc_program_modexp - 558 +558
zbc_program_assign - 448 +448
zbc_program_pushArray - 111 +111
zbc_num_s 239 237 -2
zbc_num_d 543 541 -2
zbc_num_binary 145 143 -2
zbc_num_a 443 441 -2
zbc_num_rem 95 91 -4
zbc_num_divmod 150 146 -4
zbc_num_m 269 257 -12
zbc_num_r 230 208 -22
zbc_num_printNum 447 417 -30
bc_program_exec 3960 3928 -32
zbc_num_p 434 399 -35
zbc_program_num 880 840 -40
zbc_num_k 913 852 -61
zbc_program_printStream 141 - -141
bc_program_assign 455 - -455
bc_program_modexp 668 - -668
------------------------------------------------------------------------------
(add/remove: 3/3 grow/shrink: 0/13 up/down: 1117/-1512) Total: -395 bytes
text data bss dec hex filename
982632 485 7296 990413 f1ccd busybox_old
982237 485 7296 990018 f1b42 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Dec 2018 18:12:13 +0000 (19:12 +0100)]
bc: rename arithmetic calc functions to "z" functions, no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Dec 2018 16:56:09 +0000 (17:56 +0100)]
bc: move declarations around, no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Dec 2018 16:36:21 +0000 (17:36 +0100)]
bc: code shrink in zbc_lex_number()
function old new delta
zbc_lex_number 279 190 -89
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Dec 2018 14:45:15 +0000 (15:45 +0100)]
bc: make bc_program_pushVar "z-function"
function old new delta
bc_program_pushVar 200 198 -2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Tue, 11 Dec 2018 14:29:32 +0000 (15:29 +0100)]
bc: improve "noninteractive" macro machinery so that even "return zero" code is not generated
Most affected functions shrink by 2 bytes on x86.
function old new delta
zbc_program_num - 880 +880
zbc_program_print - 665 +665
zbc_num_printNum - 447 +447
zbc_program_call - 323 +323
zbc_program_copyToVar - 287 +287
zbc_lex_number - 279 +279
zbc_program_binOpPrep - 269 +269
zbc_program_assignStr - 142 +142
zbc_program_printStream - 141 +141
zbc_func_insert - 93 +93
zbc_num_ulong - 88 +88
zbc_program_prep - 79 +79
zbc_num_shift - 53 +53
bc_num_shift 54 - -54
bc_program_prep 81 - -81
bc_num_ulong 90 - -90
bc_func_insert 95 - -95
bc_program_printStream 143 - -143
bc_program_assignStr 144 - -144
bc_program_binOpPrep 271 - -271
bc_lex_number 281 - -281
bc_program_copyToVar 289 - -289
bc_program_call 325 - -325
bc_num_printNum 471 - -471
bc_program_print 667 - -667
bc_program_num 880 - -880
------------------------------------------------------------------------------
(add/remove: 13/13 grow/shrink: 0/0 up/down: 3746/-3791) Total: -45 bytes
text data bss dec hex filename
982779 485 7296 990560 f1d60 busybox_old
982734 485 7296 990515 f1d33 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 19:56:08 +0000 (20:56 +0100)]
bc: it's not clear bc_vm_file() always exits on errors, remove ERRORS_ARE_FATAL
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 19:41:05 +0000 (20:41 +0100)]
bc: more ERRORS_ARE_FATAL annotations
function old new delta
bc_program_exec 3920 3969 +49
bc_program_call 329 325 -4
bc_vm_run 622 616 -6
bc_program_modexp 677 668 -9
bc_program_assign 471 455 -16
bc_program_pushArray 113 - -113
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/4 up/down: 49/-148) Total: -99 bytes
text data bss dec hex filename
982872 485 7296 990653 f1dbd busybox_old
982773 485 7296 990554 f1d5a busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 19:26:04 +0000 (20:26 +0100)]
bc: stop checking for name length in bc_lex_name()
Gigabyte-long names are not a practical concern.
function old new delta
bc_lex_name 73 69 -4
bc_lex_token 1266 1259 -7
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-11) Total: -11 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 19:17:24 +0000 (20:17 +0100)]
bc: optimize non-interactive config: we know that many functions always succeed
function old new delta
bc_program_assign 475 471 -4
bc_program_prep 87 81 -6
bc_parse_parse 423 417 -6
bc_num_p 440 434 -6
bc_program_printStream 153 143 -10
bc_program_execStr 478 468 -10
bc_parse_auto 275 265 -10
bc_num_k 925 913 -12
bc_program_copyToVar 307 289 -18
bc_program_binOpPrep 289 271 -18
bc_num_printNum 489 471 -18
bc_num_m 287 269 -18
bc_program_pushArray 139 113 -26
bc_program_modexp 707 677 -30
bc_program_print 704 667 -37
bc_program_exec 4010 3920 -90
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/16 up/down: 0/-319) Total: -319 bytes
text data bss dec hex filename
983202 485 7296 990983 f1f07 busybox_old
982883 485 7296 990664 f1dc8 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 18:46:53 +0000 (19:46 +0100)]
bc: in non-interactive config, let compiler know that error funcs do not return
function old new delta
bc_num_s 235 239 +4
bc_lex_next 92 91 -1
dc_parse_register 53 51 -2
dc_parse_parse 46 44 -2
bc_vm_run 624 622 -2
bc_program_assignStr 146 144 -2
bc_parse_else 135 133 -2
bc_parse_body 116 114 -2
bc_num_a 445 443 -2
bc_func_insert 97 95 -2
bc_program_pushVar 203 200 -3
bc_parse_text 133 130 -3
bc_error_bad_character 17 14 -3
bc_error 14 11 -3
bc_program_printStream 157 153 -4
bc_program_prep 91 87 -4
bc_program_copyToVar 311 307 -4
bc_num_ulong 95 90 -5
bc_num_p 445 440 -5
bc_program_print 711 704 -7
bc_parse_endBody 365 358 -7
bc_num_r 237 230 -7
bc_num_d 550 543 -7
dc_lex_token 682 674 -8
bc_program_pushArray 147 139 -8
bc_program_assign 485 475 -10
bc_program_read 333 322 -11
bc_lex_token 1278 1266 -12
bc_parse_stmt 1780 1767 -13
bc_program_modexp 723 707 -16
dc_parse_expr 762 744 -18
bc_program_execStr 496 478 -18
bc_program_call 347 329 -18
bc_vm_file 219 197 -22
bc_program_binOpPrep 311 289 -22
bc_parse_name 539 513 -26
bc_parse_parse 451 423 -28
bc_program_num 912 880 -32
bc_read_line 172 139 -33
bc_program_exec 4048 4010 -38
bc_parse_auto 313 275 -38
bc_parse_expr_empty_ok 2095 2036 -59
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/41 up/down: 4/-509) Total: -505 bytes
text data bss dec hex filename
983707 485 7296 991488 f2100 busybox_old
983202 485 7296 990983 f1f07 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 18:19:38 +0000 (19:19 +0100)]
tls: prepare for ECDH_anon ciphers
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 17:49:29 +0000 (18:49 +0100)]
tls: fix a potential (currently "disabled" by a macro) SHA1-related bug
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 15:43:53 +0000 (16:43 +0100)]
tls: if !ENABLE_FEATURE_TLS_SHA1, tls->MAC_size is always SHA256_OUTSIZE for AES-CBC
function old new delta
tls_xread_record 634 636 +2
xwrite_encrypted 579 580 +1
tls_handshake 2095 2085 -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 3/-10) Total: -7 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 15:14:58 +0000 (16:14 +0100)]
tls: introduce FEATURE_TLS_SHA1 to make SHA1 code optional
When disabled:
function old new delta
xwrite_encrypted 580 579 -1
prf_hmac_sha256 222 217 -5
hmac_begin 158 149 -9
static.ciphers 32 20 -12
tls_handshake 2115 2095 -20
hmac 87 61 -26
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/6 up/down: 0/-73) Total: -73 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 14:38:52 +0000 (15:38 +0100)]
bc: simplify bc_num_parseDecimal() further
function old new delta
bc_program_num 925 912 -13
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 14:37:14 +0000 (15:37 +0100)]
bc: make all function pointers FAST_FUNC, on i486 this saves ~400 bytes
function old new delta
bc_num_rem 91 95 +4
bc_num_inv 53 56 +3
bc_num_d 569 572 +3
bc_num_printDigits 136 137 +1
bc_program_assign 486 485 -1
dc_lex_token 684 682 -2
bc_vec_pop 27 25 -2
bc_vec_npop 55 53 -2
bc_program_read 335 333 -2
bc_program_print 713 711 -2
bc_parse_parse 462 460 -2
bc_lex_token 1280 1278 -2
bc_num_printChar 27 24 -3
bc_num_binary 150 147 -3
dc_parse_parse 59 55 -4
bc_vm_run 630 626 -4
bc_num_printHex 71 67 -4
bc_num_divmod 155 150 -5
bc_vec_free 24 18 -6
bc_string_free 15 9 -6
bc_num_free 15 9 -6
bc_id_free 15 9 -6
bc_parse_free 53 46 -7
bc_program_scale 8 - -8
bc_num_r 245 237 -8
bc_func_free 35 27 -8
bc_result_free 57 46 -11
bc_num_a 454 443 -11
bc_num_sub 77 65 -12
bc_num_add 77 65 -12
bc_program_modexp 736 723 -13
bc_num_s 252 239 -13
bc_num_mul 62 49 -13
bc_num_mod 62 49 -13
bc_num_div 62 49 -13
bc_num_pow 47 31 -16
bc_program_exec 4081 4059 -22
bc_num_printNum 514 489 -25
bc_num_p 478 445 -33
bc_program_len 34 - -34
bc_program_num 963 925 -38
bc_num_k 988 944 -44
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 4/36 up/down: 11/-416) Total: -405 bytes
text data bss dec hex filename
984536 485 7296 992317 f243d busybox_old
984131 485 7296 991912 f22a8 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 14:15:42 +0000 (15:15 +0100)]
bc: 0xffffffffffffffff may be larger than unsigned long
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 14:12:58 +0000 (15:12 +0100)]
bc: optimize bc_vec_concat()
function old new delta
bc_vec_concat 71 66 -5
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 11:57:01 +0000 (12:57 +0100)]
bc: simplify bc_program_len()
function old new delta
bc_program_len 42 34 -8
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 11:33:40 +0000 (12:33 +0100)]
bc: simplify bc_program_print()
function old new delta
bc_program_print 730 713 -17
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 11:22:15 +0000 (12:22 +0100)]
bc: simplify bc_num_ulong2num()
function old new delta
bc_num_ulong2num 64 59 -5
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Mon, 10 Dec 2018 10:54:18 +0000 (11:54 +0100)]
bc: move str-to-num conversion functions to their only caller, bc_num_parse()
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 9 Dec 2018 12:33:52 +0000 (13:33 +0100)]
bc: further simplify string-to-number conversion code
function old new delta
bc_program_index 66 64 -2
bc_program_num 983 963 -20
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-22) Total: -22 bytes
text data bss dec hex filename
985706 477 7296 993479 f28c7 busybox_old
985684 477 7296 993457 f28b1 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 9 Dec 2018 12:21:54 +0000 (13:21 +0100)]
bc: simplify string-tonumber conversion code
function old new delta
bc_program_num 1108 983 -125
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-125) Total: -125 bytes
text data bss dec hex filename
985831 477 7296 993604 f2944 busybox_old
985706 477 7296 993479 f28c7 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 9 Dec 2018 11:04:44 +0000 (12:04 +0100)]
bc: no need to "set to zero" BcNum after bc_num_init(), it already is
function old new delta
bc_num_init 48 49 +1
bc_program_num 1115 1108 -7
bc_program_exec 4098 4081 -17
bc_vm_init 786 768 -18
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/3 up/down: 1/-42) Total: -41 bytes
text data bss dec hex filename
985872 477 7296 993645 f296d busybox_old
985831 477 7296 993604 f2944 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 9 Dec 2018 10:44:20 +0000 (11:44 +0100)]
bc: add and use bc_num_init_DEF_SIZE()
function old new delta
bc_num_init_DEF_SIZE - 10 +10
bc_num_binary 150 148 -2
bc_program_pushVar 208 203 -5
bc_program_modexp 741 736 -5
bc_program_copyToVar 316 311 -5
bc_program_call 352 347 -5
bc_array_expand 88 83 -5
bc_program_num 1125 1115 -10
bc_vm_init 821 786 -35
bc_program_exec 4152 4098 -54
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/9 up/down: 10/-126) Total: -116 bytes
text data bss dec hex filename
985988 477 7296 993761 f29e1 busybox_old
985872 477 7296 993645 f296d busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 9 Dec 2018 01:54:06 +0000 (02:54 +0100)]
bc: in bc_program_execStr(), push two variables into inner scope
function old new delta
bc_program_execStr 502 496 -6
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sun, 9 Dec 2018 01:24:14 +0000 (02:24 +0100)]
bc: in bc_program_exec(), push two variables into inner scope
While at it, delete empty lines.
function old new delta
bc_program_exec 4179 4152 -27
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 8 Dec 2018 23:03:57 +0000 (00:03 +0100)]
bc: add accessors for G.prog.strs[idx], G.prog.fns[idx]
function old new delta
bc_program_str - 17 +17
bc_program_func - 17 +17
bc_program_addFunc 209 204 -5
bc_program_reset 70 64 -6
bc_program_printStream 163 157 -6
bc_program_print 736 730 -6
bc_vm_file 226 219 -7
bc_parse_text 143 133 -10
bc_parse_reset 163 153 -10
bc_parse_endBody 375 365 -10
bc_parse_create 168 158 -10
bc_parse_addFunc 41 31 -10
bc_program_call 364 352 -12
bc_program_read 350 335 -15
bc_program_execStr 528 502 -26
bc_program_exec 4219 4179 -40
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/14 up/down: 34/-173) Total: -139 bytes
text data bss dec hex filename
985043 485 7296 992824 f2638 busybox_old
984904 485 7296 992685 f25ad busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 8 Dec 2018 22:48:53 +0000 (23:48 +0100)]
bc: eliminate always the same params to bc_num_printBase()
function old new delta
bc_program_print 739 736 -3
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 8 Dec 2018 22:36:28 +0000 (23:36 +0100)]
bc: remove redundant error checks in bc_parse_print()
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 8 Dec 2018 22:18:06 +0000 (23:18 +0100)]
bc: stop propagating pointer to G.prog.nchars deep into printing functions
function old new delta
bc_num_printHex 62 71 +9
bc_num_printNewline 47 54 +7
bc_num_printDigits 132 136 +4
bc_num_printChar 23 27 +4
bc_program_printStream 173 163 -10
bc_program_print 754 739 -15
bc_num_printNum 538 514 -24
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/3 up/down: 24/-49) Total: -25 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 8 Dec 2018 20:56:37 +0000 (21:56 +0100)]
bc: do not pass line width in parameters, it's in globals
function old new delta
bc_num_printNewline 36 47 +11
bc_num_printHex 70 62 -8
bc_num_printDigits 142 132 -10
bc_program_printStream 185 173 -12
bc_program_print 773 754 -19
bc_num_printNum 563 538 -25
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/5 up/down: 11/-74) Total: -63 bytes
text data bss dec hex filename
985122 485 7296 992903 f2687 busybox_old
985059 485 7296 992840 f2648 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 8 Dec 2018 20:39:10 +0000 (21:39 +0100)]
bc: remove "ready for more input" message, GNU bc does not print that
function old new delta
bc_read_line 285 268 -17
bc_vm_run 684 630 -54
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-71) Total: -71 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 8 Dec 2018 20:24:38 +0000 (21:24 +0100)]
tls: AES-GCM: in GMULT, avoid memcpy, use one less variable in bit loop
function old new delta
GMULT 168 159 -9
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 8 Dec 2018 18:34:35 +0000 (19:34 +0100)]
bc: trim banner, use empty interactive prompts (GNU bc compat)
function old new delta
bc_vm_run 689 684 -5
bc_program_read 355 350 -5
bc_read_line 307 285 -22
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-32) Total: -32 bytes
text data bss dec hex filename
985409 485 7296 993190 f27a6 busybox_old
985265 485 7296 993046 f2716 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 8 Dec 2018 17:59:07 +0000 (18:59 +0100)]
dc: fix "small dc" to have standard command line API
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 8 Dec 2018 14:45:46 +0000 (15:45 +0100)]
lineedit: fix "defined but not used" sigaction2 warning
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 8 Dec 2018 14:41:17 +0000 (15:41 +0100)]
mdev: suppress aliasing warning
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 8 Dec 2018 14:35:24 +0000 (15:35 +0100)]
inetd: suppress aliasing warning
function old new delta
sigprocmask2 - 8 +8
wait_for_child_or_signal 213 218 +5
dowait 424 429 +5
block_CHLD_HUP_ALRM 62 59 -3
sigprocmask_SIG_SETMASK 16 - -16
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 2/1 up/down: 18/-19) Total: -1 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 8 Dec 2018 12:49:15 +0000 (13:49 +0100)]
suppress gcc 8 aliasing warnings
function old new delta
sigprocmask_SIG_SETMASK - 16 +16
wait_for_child_or_signal 221 213 -8
dowait 432 424 -8
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Sat, 8 Dec 2018 12:34:43 +0000 (13:34 +0100)]
tls: make RIGHTSHIFTX() in AES-GCM faster
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 7 Dec 2018 15:35:43 +0000 (16:35 +0100)]
bc: replace G.eof with a special exit code of bc_vm_stdin()
function old new delta
bc_read_line 305 307 +2
bc_vm_run 701 689 -12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 2/-12) Total: -10 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 7 Dec 2018 15:22:45 +0000 (16:22 +0100)]
bc: convert two macros to functions, unwing one complex max(a,min(b,c))
function old new delta
BC_NUM_AREQ - 45 +45
BC_NUM_MREQ - 33 +33
bc_num_rem 104 91 -13
bc_num_divmod 168 155 -13
bc_num_d 584 569 -15
bc_num_mul 80 62 -18
bc_num_mod 80 62 -18
bc_num_div 80 62 -18
bc_num_sub 112 77 -35
bc_num_add 112 77 -35
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/8 up/down: 78/-165) Total: -87 bytes
text data bss dec hex filename
985526 485 7296 993307 f281b busybox_old
985439 485 7296 993220 f27c4 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 7 Dec 2018 14:50:14 +0000 (15:50 +0100)]
bc: do not perform domr limit checks when they can't work (e.g. on 32-bit arches)
Also, optimize printing of messages with fixed limit strings
by including limits as strings.
function old new delta
bc_num_ulong 103 95 -8
bc_lex_number 296 281 -15
dc_lex_token 701 684 -17
bc_lex_name 90 73 -17
bc_num_shift 72 54 -18
bc_lex_token 1299 1280 -19
bc_parse_stmt 1868 1768 -100
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-194) Total: -194 bytes
text data bss dec hex filename
985814 485 7296 993595 f293b busybox_old
985526 485 7296 993307 f281b busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 7 Dec 2018 14:10:05 +0000 (15:10 +0100)]
bc: pull temporary into a register
function old new delta
bc_num_ulong 103 95 -8
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 7 Dec 2018 11:57:32 +0000 (12:57 +0100)]
bc: use more compact parsing data structures
function old new delta
dc_lex_token 697 701 +4
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
common_parse_expr 62 40 -22
bc_parse_expr 49 24 -25
dc_lex_regs 52 13 -39
bc_parse_name 581 539 -42
bc_parse_expr_empty_ok 2157 2108 -49
dc_parse_insts 332 83 -249
dc_lex_tokens 364 91 -273
bc_parse_stmt 2261 1868 -393
------------------------------------------------------------------------------
(add/remove: 0/7 grow/shrink: 1/8 up/down: 4/-1232) Total: -1228 bytes
text data bss dec hex filename
987037 485 7296 994818 f2e02 busybox_old
985814 485 7296 993595 f293b busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Fri, 7 Dec 2018 11:41:42 +0000 (12:41 +0100)]
bc: use only G_interrupt as interrupt flag
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 22:06:57 +0000 (23:06 +0100)]
bc: fix exit codes for FEATURE_CLEAN_UP=y
$ echo 0/0 | ./busybox bc; echo $?
bc: divide by zero
1
$ echo halt | ./busybox bc; echo $?
0 <------- was 1
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 17:46:42 +0000 (18:46 +0100)]
dc: fix testsuite
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 17:41:59 +0000 (18:41 +0100)]
bc: correctly parse dc options
function old new delta
bc_vm_init - 821 +821
bc_vm_file - 226 +226
dc_main 41 187 +146
bc_main 41 73 +32
packed_usage 33076 33059 -17
bc_vm_run 1903 701 -1202
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 2/2 up/down: 1225/-1219) Total: 6 bytes
text data bss dec hex filename
987046 485 7296 994827 f2e0b busybox_old
987037 485 7296 994818 f2e02 busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 14:21:39 +0000 (15:21 +0100)]
dc: fix "dc does_not_exist" SEGVing
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 13:10:10 +0000 (14:10 +0100)]
fix make_single_applets.sh
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 12:10:56 +0000 (13:10 +0100)]
bc: code shrink - convert two macros to functions
function old new delta
bc_program_printStream - 185 +185
bc_program_pushArray - 147 +147
bc_program_exec 4132 4219 +87
bc_vec_pop - 27 +27
bc_vec_top - 13 +13
bc_num_ulong 92 103 +11
bc_vm_run 1905 1903 -2
bc_vm_process 94 92 -2
bc_program_reset 72 70 -2
bc_program_prep 93 91 -2
bc_program_call 366 364 -2
bc_parse_startBody 47 45 -2
bc_parse_parse 464 462 -2
bc_parse_else 137 135 -2
bc_parse_body 118 116 -2
bc_program_num 1129 1125 -4
bc_parse_text 147 143 -4
bc_program_retire 40 35 -5
bc_program_print 778 773 -5
bc_program_modexp 746 741 -5
bc_program_pushVar 215 208 -7
bc_program_copyToVar 323 316 -7
bc_parse_operator 184 177 -7
bc_parse_noElse 65 56 -9
bc_program_binOpRetire 56 46 -10
bc_parse_stmt 2271 2261 -10
bc_program_execStr 543 528 -15
bc_program_assignStr 161 146 -15
bc_parse_expr_empty_ok 2178 2157 -21
bc_parse_endBody 420 375 -45
bc_program_asciify 464 - -464
------------------------------------------------------------------------------
(add/remove: 4/1 grow/shrink: 2/24 up/down: 470/-651) Total: -181 bytes
text data bss dec hex filename
987227 485 7296 995008 f2ec0 busybox_old
987046 485 7296 994827 f2e0b busybox_unstripped
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 11:59:40 +0000 (12:59 +0100)]
bc: make keyword POSIXness check more readable
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 11:54:26 +0000 (12:54 +0100)]
bc: move a function to reduce forward declarations
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 11:47:17 +0000 (12:47 +0100)]
bc: small simplification in dc_lex_token()
Pulling array element into a temporary, taking address of this temporary
and copying it? That's much unnecessary work.
function old new delta
dc_lex_token 701 697 -4
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 11:34:39 +0000 (12:34 +0100)]
bc: add comment about BC_NUM_DEF_SIZE
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 11:06:16 +0000 (12:06 +0100)]
bc: fix for prev commit
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 11:01:17 +0000 (12:01 +0100)]
bc: do not needlessly use strcat
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 10:43:17 +0000 (11:43 +0100)]
bc: unbreak "BC only" and "DC only" configs
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 10:31:14 +0000 (11:31 +0100)]
dc: re-enable "tiny dc" implementation
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 10:12:38 +0000 (11:12 +0100)]
bc: unbreak FEATURE_CLEAN_UP build
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 10:10:11 +0000 (11:10 +0100)]
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>
Denys Vlasenko [Thu, 6 Dec 2018 09:29:12 +0000 (10:29 +0100)]
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>
Denys Vlasenko [Thu, 6 Dec 2018 09:26:13 +0000 (10:26 +0100)]
bc: add preparatory indent block, no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Thu, 6 Dec 2018 08:20:32 +0000 (09:20 +0100)]
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>
Denys Vlasenko [Thu, 6 Dec 2018 08:07:06 +0000 (09:07 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 23:46:09 +0000 (00:46 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 23:29:22 +0000 (00:29 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 21:40:44 +0000 (22:40 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 20:15:46 +0000 (21:15 +0100)]
bc: reorder functions, delete forward declarations, no code changes - part 2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 5 Dec 2018 20:03:16 +0000 (21:03 +0100)]
bc: reorder functions, delete forward declarations, no code changes
Pure block moves of text
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 5 Dec 2018 19:33:23 +0000 (20:33 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 19:28:26 +0000 (20:28 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 19:25:03 +0000 (20:25 +0100)]
bc: fix "warning: 's' may be used uninitialized in this function"
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 5 Dec 2018 19:17:48 +0000 (20:17 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 18:37:19 +0000 (19:37 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 18:21:34 +0000 (19:21 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 18:05:32 +0000 (19:05 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 18:00:58 +0000 (19:00 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 17:56:14 +0000 (18:56 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 17:31:19 +0000 (18:31 +0100)]
bc: tweak error messages
function old new delta
bc_lex_token 1285 1299 +14
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Denys Vlasenko [Wed, 5 Dec 2018 17:12:27 +0000 (18:12 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 16:48:01 +0000 (17:48 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 15:55:08 +0000 (16:55 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 15:39:22 +0000 (16:39 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 15:21:43 +0000 (16:21 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 15:03:46 +0000 (16:03 +0100)]
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>
Denys Vlasenko [Wed, 5 Dec 2018 00:21:59 +0000 (01:21 +0100)]
bc: make 2^
1000000 interruptible faster
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
projects / oweals / busybox.git / log