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2019-07-02libbb: reduce the overhead of single parameter bb_error_msg() callsJames Byrne
Back in 2007, commit 0c97c9d43707 ("'simple' error message functions by Loic Grenie") introduced bb_simple_perror_msg() to allow for a lower overhead call to bb_perror_msg() when only a string was being printed with no parameters. This saves space for some CPU architectures because it avoids the overhead of a call to a variadic function. However there has never been a simple version of bb_error_msg(), and since 2007 many new calls to bb_perror_msg() have been added that only take a single parameter and so could have been using bb_simple_perror_message(). This changeset introduces 'simple' versions of bb_info_msg(), bb_error_msg(), bb_error_msg_and_die(), bb_herror_msg() and bb_herror_msg_and_die(), and replaces all calls that only take a single parameter, or use something like ("%s", arg), with calls to the corresponding 'simple' version. Since it is likely that single parameter calls to the variadic functions may be accidentally reintroduced in the future a new debugging config option WARN_SIMPLE_MSG has been introduced. This uses some macro magic which will cause any such calls to generate a warning, but this is turned off by default to avoid use of the unpleasant macros in normal circumstances. This is a large changeset due to the number of calls that have been replaced. The only files that contain changes other than simple substitution of function calls are libbb.h, libbb/herror_msg.c, libbb/verror_msg.c and libbb/xfuncs_printf.c. In miscutils/devfsd.c, networking/udhcp/common.h and util-linux/mdev.c additonal macros have been added for logging so that single parameter and multiple parameter logging variants exist. The amount of space saved varies considerably by architecture, and was found to be as follows (for 'defconfig' using GCC 7.4): Arm: -92 bytes MIPS: -52 bytes PPC: -1836 bytes x86_64: -938 bytes Note that for the MIPS architecture only an exception had to be made disabling the 'simple' calls for 'udhcp' (in networking/udhcp/common.h) because it made these files larger on MIPS. Signed-off-by: James Byrne <james.byrne@origamienergy.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-06-08vi: code shrinkDenys Vlasenko
function old new delta colon 2852 2846 -6 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-05-13sed: fix /regex/,+N match triggering only once, closes 11871Denys Vlasenko
function old new delta process_files 2235 2246 +11 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-28vi: enable 'dG' command. Closes 11801Ron Yorston
The 'G' command was omitted from the list of commands that change or delete whole lines. Add it in the appropriate places so the 'dG', 'cG' and 'yG' commands work, including in cases where an explicit line number has been supplied. function old new delta find_range 534 596 +62 .rodata 175166 175167 +1 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 63/0) Total: 63 bytes Reported-by: David Kelly <david.kelly@liberica.ch> Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-28vi: fix changes to word at end of line. Closes 11796Ron Yorston
As reported in bug 11796 BusyBox vi incorrectly handles changes to a word at the end of a line. If the following line starts with whitespace changing or deleting the last word of a line with the 'cw' or 'dw' commands causes the lines to be joined. This happens because the range for the change returned by find_range() covers all whitespace after the word, including newlines. The problem can be fixed by setting 'ml' to zero to indicate to yank_delete() that processing should stop at the end of the current line. However, this results in a new problem. 'dw' correctly deletes all whitespace following the word but so does 'cw', which should preserve the trailing whitespace. To fix this the code to omit whitespace from the change is modified to include all whitespace not just blanks. function old new delta do_cmd 5034 5069 +35 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/0 up/down: 35/0) Total: 35 bytes Reported-by: David Kelly <david.kelly@liberica.ch> Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-03vi: revert change in how "end of file list" is deteced - fixes 'q' in bare "vi"Denys Vlasenko
function old new delta vi_main 273 272 -1 colon 2853 2852 -1 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-2) Total: -2 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-03vi: code shrinkDenys Vlasenko
function old new delta new_screen 84 75 -9 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-03vi: avoid build failure in non-default caseRon Yorston
If vi is built with FEATURE_VI_USE_SIGNALS disabled and FEATURE_VI_WIN_RESIZE enabled new_screen() is used without a declaration. Move the function to avoid this. Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-02vi: rename save_argc -> cmdline_filecntDenys Vlasenko
function old new delta vi_main 272 273 +1 colon 2852 2853 +1 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-02vi: restore capability to remember insertion cmds for "."Denys Vlasenko
function old new delta modifying_cmds 17 22 +5 get_one_char 103 98 -5 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 5/-5) Total: 0 bytes text data bss dec hex filename 982121 485 7296 989902 f1ace busybox_old 982094 485 7296 989875 f1ab3 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-01vi: code shrinkDenys Vlasenko
function old new delta get_input_line 172 175 +3 char_insert 444 447 +3 rawmode 36 24 -12 edit_file 644 626 -18 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/2 up/down: 6/-30) Total: -24 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-01vi: convert more /**/ comments to //Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-01vi: code shrinkDenys Vlasenko
function old new delta get_one_char 108 103 -5 edit_file 651 644 -7 do_cmd 4696 4688 -8 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-20) Total: -20 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-01vi: use vsnprintf to format status lineDenys Vlasenko
This is the last use of "vsprintf" in busybox: function old new delta status_line_bold 72 77 +5 status_line 40 45 +5 vsprintf 23 - -23 ------------------------------------------------------------------------------ (add/remove: 0/2 grow/shrink: 2/0 up/down: 10/-23) Total: -13 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-01vi: rearrange functions, no logic changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-01vi: rearrange functions, no logic changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-01vi: rearrange functions, no logic changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-01vi: rearrange functions, no logic changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-01vi: rearrange functions, no logic changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-01vi: fix ^Z not always working as intendedDenys Vlasenko
function old new delta tstp_handler 64 71 +7 text_yank 54 56 +2 vi_main 280 272 -8 do_cmd 4705 4696 -9 colon 2861 2852 -9 cont_handler 66 - -66 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 2/3 up/down: 9/-92) Total: -83 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-04-01vi: install SIGINT handler _after_ restart setjmp is initializedDenys Vlasenko
While at it, sanitized comment style, deleted wrong ones, renamed signal handlers to <sig>_handler(), slightly optimized "cursor home+clear screen". function old new delta cont_handler - 66 +66 tstp_handler - 64 +64 winch_handler - 60 +60 int_handler - 32 +32 edit_file 648 651 +3 redraw 52 43 -9 catch_sig 32 - -32 winch_sig 60 - -60 suspend_sig 64 - -64 cont_sig 66 - -66 ------------------------------------------------------------------------------ (add/remove: 4/4 grow/shrink: 1/1 up/down: 225/-231) Total: -6 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-30vi: allow manual screen update if SIGWINCH isn't supportedRon Yorston
On platforms that don't support SIGWINCH vi can be configured with FEATURE_VI_USE_SIGNALS disabled and FEATURE_VI_WIN_RESIZE enabled. This allows the user to force an update with ^L when the screen is resized. However, because the SIGWINCH handler hasn't run the virtual screen buffer won't have been updated and the display becomes corrupted. Fix this by calling new_screen() if necessary. Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-03-29vi: code shrink, proper printf formatting for strlen()Denys Vlasenko
function old new delta yank_delete 98 99 +1 what_reg 34 33 -1 text_yank 56 54 -2 end_cmd_q 17 14 -3 do_cmd 4718 4705 -13 colon 2875 2861 -14 edit_file 668 648 -20 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/6 up/down: 1/-53) Total: -52 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-11vi: further fixes to undo after autoindentRon Yorston
Commit bb983f30e (vi: fix faulty undo after autoinsert) has a number of problems: - The commit message refers to 'autoinsert' when it really means 'autoindent'. - The indentation of undo_push_insert() was incorrect. - Most seriously the commit only fixed the problem for cases where the indentation was exactly one character. This is because undo_push() only allows single characters to be queued for UNDO_INS_QUEUED. Lifting this restriction allows the example given in the previous commit message (with a three character indent) to work. function old new delta undo_push 406 435 +29 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/0 up/down: 29/0) Total: 29 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-08vi: fix replacement of single character with CRRon Yorston
Currently if the 'r' command is followed by a carriage return a literal CR replaces the current character. Fix this so that: - a new line is inserted - the autoindent setting is respected - the cursor is placed at the start of the new line function old new delta do_cmd 5052 5060 +8 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/0 up/down: 8/0) Total: 8 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-02-08vi: fix faulty undo after autoinsertRon Yorston
Enable autoinsert and enter the following with an indent of three spaces: line 1 line 2 Using 'u' to undo the last insert results in: line1e 2 The insertion of the indent hasn't been properly recorded. Since recording insertions is a common operation add a convenience function, undo_push_insert(), to handle this and use it to record the autoindent correctly. function old new delta undo_push_insert - 36 +36 string_insert 133 129 -4 char_insert 518 473 -45 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/2 up/down: 36/-49) Total: -13 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-01-21sed: code shrinkDenys Vlasenko
function old new delta parse_file_cmd 115 94 -21 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-01-21sed: Fix backslash parsing for 'w' command argBrian Foley
If there's any whitespace between w and the filename, parse_file_cmd writes to the wrong offset when trying to fix up backslashes. This can be seen in the asan build with busybox sed -e 'w 0\\' Signed-off-by: Brian Foley <bpfoley@google.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-01-21awk: Fix overly permissive func arg list parsingBrian Foley
It allows things like 'func f(a b)' and 'func f(a,)' which GNU awk forbids. function old new delta parse_program 327 367 +40 chain_expr 40 67 +27 parse_expr 891 915 +24 EMSG_TOO_FEW_ARGS 30 18 -12 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/1 up/down: 91/-12) Total: 79 bytes Signed-off-by: Brian Foley <bpfoley@google.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-01-21awk: Syntax error if delete isn't given an arg.Brian Foley
Unlike exit and return, delete strictly requires an arg, and derefs a null pointer if executed without one. Signed-off-by: Brian Foley <bpfoley@google.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-01-21awk: Guard pointer chasing when parsing ternary expressions.Brian Foley
Avoids an uninit pointer deref for some malformed ternary exprs. Add a test that would crash in busybox before this fix. Signed-off-by: Brian Foley <bpfoley@google.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-28config: update size informationDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-12-03vi: correctly detect when a deletion empties the bufferRon Yorston
Michał Berger has reported two issues: - Repeatedly deleting and undoing the deletion of the last line results in characters being lost from the end of the line. - Deleting the bottom line twice then attempting to undo each of these deletions results in a segfault. The problem seems to be an incorrect test for whether the text buffer is empty. Reported-by: Michał Berger <michallinuxstuff@gmail.com> Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-11-29vi: code shrinkDenys Vlasenko
function old new delta char_search 241 247 +6 get_one_address 275 272 -3 colon 2878 2875 -3 do_cmd 4726 4720 -6 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/3 up/down: 6/-12) Total: -6 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-11-29vi: fix FEATURE_VI_REGEX_SEARCH to respect LIMITED (one-line) searchDenys Vlasenko
If busybox is compiled with FEATURE_VI_REGEX_SEARCH enabled, command ":s/x/y/" searches not only in the current line, but continues search after it. This makes range searches (":1,3s/x/y/") work incorrect. For example file "./test": 1 2 3 $ vi ./test :1,2s/3/e/ gives us: 1 2 e function old new delta char_search 213 241 +28 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-11-28awk: abort if NF set to negative valueDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-10-31vi: remove duplicated codeRon Yorston
At worst show_status_line() might be called needlessly when the user presses ^L/^R, but I don't think we'll get many complaints about that. function old new delta do_cmd 4592 4558 -34 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-34) Total: -34 bytes Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-09-25sed: fix double-free in FEATURE_CLEAN_UP codeDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-06-27vi: placate "warning: variable orig_buf set but not used"Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-06-27vi: placate "warning: statement with no effect"Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-06-06restore documentation on the build config languageKartik Agaram
Kconfig-language.txt was deleted in commit 4fa499a17b52b back in 2006. Move to docs/ as suggested by Xabier Oneca: http://lists.busybox.net/pipermail/busybox/2014-May/080914.html Also update references to it everywhere. Signed-off-by: Kartik Agaram <akkartik@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-23awk: do not allow $(-1)Denys Vlasenko
function old new delta EMSG_NEGATIVE_FIELD - 25 +25 evaluate 3390 3403 +13 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/0 up/down: 38/0) Total: 38 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-14patch: implement --dry-runDenys Vlasenko
function old new delta static.patch_longopts - 137 +137 patch_main 2053 2135 +82 fail_hunk 132 139 +7 finish_oldfile 119 124 +5 packed_usage 32807 32787 -20 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 3/1 up/down: 231/-20) Total: 211 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-04-01sed: prevent overflow of length from bb_get_chunk_from_fileQuentin Rameau
This fragment did not work right: temp = bb_get_chunk_from_file(fp, &len); if (temp) { /* len > 0 here, it's ok to do temp[len-1] */ char c = temp[len-1]; With "int len" _sign-extending_, temp[len-1] can refer to a wrong location if len > 0x7fffffff. Signed-off-by: Quentin Rameau <quinq@fifth.space> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-07awk: code shrinkDenys Vlasenko
function old new delta awk_main 955 948 -7 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2018-01-07awk: fix 'delete array[var--]' decrementing var twiceDenys Vlasenko
function old new delta evaluate 3395 3390 -5 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-29use %m printf specifier where appropriateDenys Vlasenko
function old new delta out 85 75 -10 udhcpd_main 1472 1461 -11 open_stdio_to_tty 98 85 -13 init_exec 245 232 -13 udhcpc_main 2763 2749 -14 do_cmd 4771 4755 -16 status_line_bold_errno 32 14 -18 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-95) Total: -95 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-18regularize format of source file headers, no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-09-13*: use ESC define instead of "\033"; use ESC[m instead of ESC[0mDenys Vlasenko
text data bss dec hex filename 922535 481 6832 929848 e3038 busybox_old 922534 481 6832 929847 e3037 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-08-23sed: in '/regexp/cmd1;//cmd2', cmd2 should use the same regexp as cmd1Denys Vlasenko
function old new delta get_address 165 211 +46 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 21:18:15 +0000