diff options
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/Config.src | 286 | ||||
| -rw-r--r-- | libbb/common_bufsiz.c | 46 | ||||
| -rw-r--r-- | libbb/parse_config.c | 2 | ||||
| -rw-r--r-- | libbb/u_signal_names.c | 4 |
4 files changed, 169 insertions, 169 deletions
diff --git a/libbb/Config.src b/libbb/Config.src index 16c79dbf0..9da8b65ee 100644 --- a/libbb/Config.src +++ b/libbb/Config.src @@ -11,14 +11,14 @@ choice prompt "Buffer allocation policy" default FEATURE_BUFFERS_USE_MALLOC help - There are 3 ways BusyBox can handle buffer allocations: - - Use malloc. This costs code size for the call to xmalloc. - - Put them on stack. For some very small machines with limited stack - space, this can be deadly. For most folks, this works just fine. - - Put them in BSS. This works beautifully for computers with a real - MMU (and OS support), but wastes runtime RAM for uCLinux. This - behavior was the only one available for BusyBox versions 0.48 and - earlier. + There are 3 ways BusyBox can handle buffer allocations: + - Use malloc. This costs code size for the call to xmalloc. + - Put them on stack. For some very small machines with limited stack + space, this can be deadly. For most folks, this works just fine. + - Put them in BSS. This works beautifully for computers with a real + MMU (and OS support), but wastes runtime RAM for uCLinux. This + behavior was the only one available for BusyBox versions 0.48 and + earlier. config FEATURE_BUFFERS_USE_MALLOC bool "Allocate with Malloc" @@ -36,52 +36,52 @@ config PASSWORD_MINLEN default 6 range 5 32 help - Minimum allowable password length. + Minimum allowable password length. config MD5_SMALL int "MD5: Trade bytes for speed (0:fast, 3:slow)" default 1 # all "fast or small" options default to small range 0 3 help - Trade binary size versus speed for the md5sum algorithm. - Approximate values running uClibc and hashing - linux-2.4.4.tar.bz2 were: - user times (sec) text size (386) - 0 (fastest) 1.1 6144 - 1 1.4 5392 - 2 3.0 5088 - 3 (smallest) 5.1 4912 + Trade binary size versus speed for the md5sum algorithm. + Approximate values running uClibc and hashing + linux-2.4.4.tar.bz2 were: + value user times (sec) text size (386) + 0 (fastest) 1.1 6144 + 1 1.4 5392 + 2 3.0 5088 + 3 (smallest) 5.1 4912 config SHA3_SMALL int "SHA3: Trade bytes for speed (0:fast, 1:slow)" default 1 # all "fast or small" options default to small range 0 1 help - Trade binary size versus speed for the sha3sum algorithm. - SHA3_SMALL=0 compared to SHA3_SMALL=1 (approximate): - 64-bit x86: +270 bytes of code, 45% faster - 32-bit x86: +450 bytes of code, 75% faster + Trade binary size versus speed for the sha3sum algorithm. + SHA3_SMALL=0 compared to SHA3_SMALL=1 (approximate): + 64-bit x86: +270 bytes of code, 45% faster + 32-bit x86: +450 bytes of code, 75% faster config FEATURE_FAST_TOP bool "Faster /proc scanning code (+100 bytes)" default n # all "fast or small" options default to small help - This option makes top and ps ~20% faster (or 20% less CPU hungry), - but code size is slightly bigger. + This option makes top and ps ~20% faster (or 20% less CPU hungry), + but code size is slightly bigger. config FEATURE_ETC_NETWORKS bool "Support /etc/networks" default n help - Enable support for network names in /etc/networks. This is - a rarely used feature which allows you to use names - instead of IP/mask pairs in route command. + Enable support for network names in /etc/networks. This is + a rarely used feature which allows you to use names + instead of IP/mask pairs in route command. config FEATURE_EDITING bool "Command line editing" default y help - Enable line editing (mainly for shell command line). + Enable line editing (mainly for shell command line). config FEATURE_EDITING_MAX_LEN int "Maximum length of input" @@ -89,17 +89,17 @@ config FEATURE_EDITING_MAX_LEN default 1024 depends on FEATURE_EDITING help - Line editing code uses on-stack buffers for storage. - You may want to decrease this parameter if your target machine - benefits from smaller stack usage. + Line editing code uses on-stack buffers for storage. + You may want to decrease this parameter if your target machine + benefits from smaller stack usage. config FEATURE_EDITING_VI bool "vi-style line editing commands" default n depends on FEATURE_EDITING help - Enable vi-style line editing. In shells, this mode can be - turned on and off with "set -o vi" and "set +o vi". + Enable vi-style line editing. In shells, this mode can be + turned on and off with "set -o vi" and "set +o vi". config FEATURE_EDITING_HISTORY int "History size" @@ -108,29 +108,29 @@ config FEATURE_EDITING_HISTORY default 255 depends on FEATURE_EDITING help - Specify command history size (0 - disable). + Specify command history size (0 - disable). config FEATURE_EDITING_SAVEHISTORY bool "History saving" default y depends on FEATURE_EDITING help - Enable history saving in shells. + Enable history saving in shells. config FEATURE_EDITING_SAVE_ON_EXIT bool "Save history on shell exit, not after every command" default n depends on FEATURE_EDITING_SAVEHISTORY help - Save history on shell exit, not after every command. + Save history on shell exit, not after every command. config FEATURE_REVERSE_SEARCH bool "Reverse history search" default y depends on FEATURE_EDITING help - Enable readline-like Ctrl-R combination for reverse history search. - Increases code by about 0.5k. + Enable readline-like Ctrl-R combination for reverse history search. + Increases code by about 0.5k. config FEATURE_TAB_COMPLETION bool "Tab completion" @@ -147,237 +147,237 @@ config FEATURE_EDITING_FANCY_PROMPT default y depends on FEATURE_EDITING help - Setting this option allows for prompts to use things like \w and - \$ and escape codes. + Setting this option allows for prompts to use things like \w and + \$ and escape codes. config FEATURE_EDITING_ASK_TERMINAL bool "Query cursor position from terminal" default n depends on FEATURE_EDITING help - Allow usage of "ESC [ 6 n" sequence. Terminal answers back with - current cursor position. This information is used to make line - editing more robust in some cases. - If you are not sure whether your terminals respond to this code - correctly, or want to save on code size (about 400 bytes), - then do not turn this option on. + Allow usage of "ESC [ 6 n" sequence. Terminal answers back with + current cursor position. This information is used to make line + editing more robust in some cases. + If you are not sure whether your terminals respond to this code + correctly, or want to save on code size (about 400 bytes), + then do not turn this option on. config LOCALE_SUPPORT bool "Enable locale support (system needs locale for this to work)" default n help - Enable this if your system has locale support and you would like - busybox to support locale settings. + Enable this if your system has locale support and you would like + busybox to support locale settings. config UNICODE_SUPPORT bool "Support Unicode" default y help - This makes various applets aware that one byte is not - one character on screen. + This makes various applets aware that one byte is not + one character on screen. - Busybox aims to eventually work correctly with Unicode displays. - Any older encodings are not guaranteed to work. - Probably by the time when busybox will be fully Unicode-clean, - other encodings will be mainly of historic interest. + Busybox aims to eventually work correctly with Unicode displays. + Any older encodings are not guaranteed to work. + Probably by the time when busybox will be fully Unicode-clean, + other encodings will be mainly of historic interest. config UNICODE_USING_LOCALE bool "Use libc routines for Unicode (else uses internal ones)" default n depends on UNICODE_SUPPORT && LOCALE_SUPPORT help - With this option on, Unicode support is implemented using libc - routines. Otherwise, internal implementation is used. - Internal implementation is smaller. + With this option on, Unicode support is implemented using libc + routines. Otherwise, internal implementation is used. + Internal implementation is smaller. config FEATURE_CHECK_UNICODE_IN_ENV bool "Check $LC_ALL, $LC_CTYPE and $LANG environment variables" default n depends on UNICODE_SUPPORT && !UNICODE_USING_LOCALE help - With this option on, Unicode support is activated - only if locale-related variables have the value of the form - "xxxx.utf8" + With this option on, Unicode support is activated + only if locale-related variables have the value of the form + "xxxx.utf8" - Otherwise, Unicode support will be always enabled and active. + Otherwise, Unicode support will be always enabled and active. config SUBST_WCHAR int "Character code to substitute unprintable characters with" depends on UNICODE_SUPPORT default 63 help - Typical values are 63 for '?' (works with any output device), - 30 for ASCII substitute control code, - 65533 (0xfffd) for Unicode replacement character. + Typical values are 63 for '?' (works with any output device), + 30 for ASCII substitute control code, + 65533 (0xfffd) for Unicode replacement character. config LAST_SUPPORTED_WCHAR int "Range of supported Unicode characters" depends on UNICODE_SUPPORT default 767 help - Any character with Unicode value bigger than this is assumed - to be non-printable on output device. Many applets replace - such characters with substitution character. - - The idea is that many valid printable Unicode chars - nevertheless are not displayed correctly. Think about - combining charachers, double-wide hieroglyphs, obscure - characters in dozens of ancient scripts... - Many terminals, terminal emulators, xterms etc will fail - to handle them correctly. Choose the smallest value - which suits your needs. - - Typical values are: - 126 - ASCII only - 767 (0x2ff) - there are no combining chars in [0..767] range + Any character with Unicode value bigger than this is assumed + to be non-printable on output device. Many applets replace + such characters with substitution character. + + The idea is that many valid printable Unicode chars + nevertheless are not displayed correctly. Think about + combining charachers, double-wide hieroglyphs, obscure + characters in dozens of ancient scripts... + Many terminals, terminal emulators, xterms etc will fail + to handle them correctly. Choose the smallest value + which suits your needs. + + Typical values are: + 126 - ASCII only + 767 (0x2ff) - there are no combining chars in [0..767] range (the range includes Latin 1, Latin Ext. A and B), code is ~700 bytes smaller for this case. - 4351 (0x10ff) - there are no double-wide chars in [0..4351] range, + 4351 (0x10ff) - there are no double-wide chars in [0..4351] range, code is ~300 bytes smaller for this case. - 12799 (0x31ff) - nearly all non-ideographic characters are + 12799 (0x31ff) - nearly all non-ideographic characters are available in [0..12799] range, including East Asian scripts like katakana, hiragana, hangul, bopomofo... - 0 - off, any valid printable Unicode character will be printed. + 0 - off, any valid printable Unicode character will be printed. config UNICODE_COMBINING_WCHARS bool "Allow zero-width Unicode characters on output" default n depends on UNICODE_SUPPORT help - With this option off, any Unicode char with width of 0 - is substituted on output. + With this option off, any Unicode char with width of 0 + is substituted on output. config UNICODE_WIDE_WCHARS bool "Allow wide Unicode characters on output" default n depends on UNICODE_SUPPORT help - With this option off, any Unicode char with width > 1 - is substituted on output. + With this option off, any Unicode char with width > 1 + is substituted on output. config UNICODE_BIDI_SUPPORT bool "Bidirectional character-aware line input" default n depends on UNICODE_SUPPORT && !UNICODE_USING_LOCALE help - With this option on, right-to-left Unicode characters - are treated differently on input (e.g. cursor movement). + With this option on, right-to-left Unicode characters + are treated differently on input (e.g. cursor movement). config UNICODE_NEUTRAL_TABLE bool "In bidi input, support non-ASCII neutral chars too" default n depends on UNICODE_BIDI_SUPPORT help - In most cases it's enough to treat only ASCII non-letters - (i.e. punctuation, numbers and space) as characters - with neutral directionality. - With this option on, more extensive (and bigger) table - of neutral chars will be used. + In most cases it's enough to treat only ASCII non-letters + (i.e. punctuation, numbers and space) as characters + with neutral directionality. + With this option on, more extensive (and bigger) table + of neutral chars will be used. config UNICODE_PRESERVE_BROKEN bool "Make it possible to enter sequences of chars which are not Unicode" default n depends on UNICODE_SUPPORT help - With this option on, on line-editing input (such as used by shells) - invalid UTF-8 bytes are not substituted with the selected - substitution character. - For example, this means that entering 'l', 's', ' ', 0xff, [Enter] - at shell prompt will list file named 0xff (single char name - with char value 255), not file named '?'. + With this option on, on line-editing input (such as used by shells) + invalid UTF-8 bytes are not substituted with the selected + substitution character. + For example, this means that entering 'l', 's', ' ', 0xff, [Enter] + at shell prompt will list file named 0xff (single char name + with char value 255), not file named '?'. config FEATURE_NON_POSIX_CP bool "Non-POSIX, but safer, copying to special nodes" default y help - With this option, "cp file symlink" will delete symlink - and create a regular file. This does not conform to POSIX, - but prevents a symlink attack. - Similarly, "cp file device" will not send file's data - to the device. (To do that, use "cat file >device") + With this option, "cp file symlink" will delete symlink + and create a regular file. This does not conform to POSIX, + but prevents a symlink attack. + Similarly, "cp file device" will not send file's data + to the device. (To do that, use "cat file >device") config FEATURE_VERBOSE_CP_MESSAGE bool "Give more precise messages when copy fails (cp, mv etc)" default n help - Error messages with this feature enabled: + Error messages with this feature enabled: - $ cp file /does_not_exist/file - cp: cannot create '/does_not_exist/file': Path does not exist - $ cp file /vmlinuz/file - cp: cannot stat '/vmlinuz/file': Path has non-directory component + $ cp file /does_not_exist/file + cp: cannot create '/does_not_exist/file': Path does not exist + $ cp file /vmlinuz/file + cp: cannot stat '/vmlinuz/file': Path has non-directory component - If this feature is not enabled, they will be, respectively: + If this feature is not enabled, they will be, respectively: - cp: cannot create '/does_not_exist/file': No such file or directory - cp: cannot stat '/vmlinuz/file': Not a directory + cp: cannot create '/does_not_exist/file': No such file or directory + cp: cannot stat '/vmlinuz/file': Not a directory - This will cost you ~60 bytes. + This will cost you ~60 bytes. config FEATURE_USE_SENDFILE bool "Use sendfile system call" default y select PLATFORM_LINUX help - When enabled, busybox will use the kernel sendfile() function - instead of read/write loops to copy data between file descriptors - (for example, cp command does this a lot). - If sendfile() doesn't work, copying code falls back to read/write - loop. sendfile() was originally implemented for faster I/O - from files to sockets, but since Linux 2.6.33 it was extended - to work for many more file types. + When enabled, busybox will use the kernel sendfile() function + instead of read/write loops to copy data between file descriptors + (for example, cp command does this a lot). + If sendfile() doesn't work, copying code falls back to read/write + loop. sendfile() was originally implemented for faster I/O + from files to sockets, but since Linux 2.6.33 it was extended + to work for many more file types. config FEATURE_COPYBUF_KB int "Copy buffer size, in kilobytes" range 1 1024 default 4 help - Size of buffer used by cp, mv, install, wget etc. - Buffers which are 4 kb or less will be allocated on stack. - Bigger buffers will be allocated with mmap, with fallback to 4 kb - stack buffer if mmap fails. + Size of buffer used by cp, mv, install, wget etc. + Buffers which are 4 kb or less will be allocated on stack. + Bigger buffers will be allocated with mmap, with fallback to 4 kb + stack buffer if mmap fails. config FEATURE_SKIP_ROOTFS bool "Skip rootfs in mount table" default y help - Ignore rootfs entry in mount table. + Ignore rootfs entry in mount table. - In Linux, kernel has a special filesystem, rootfs, which is initially - mounted on /. It contains initramfs data, if kernel is configured - to have one. Usually, another file system is mounted over / early - in boot process, and therefore most tools which manipulate - mount table, such as df, will skip rootfs entry. + In Linux, kernel has a special filesystem, rootfs, which is initially + mounted on /. It contains initramfs data, if kernel is configured + to have one. Usually, another file system is mounted over / early + in boot process, and therefore most tools which manipulate + mount table, such as df, will skip rootfs entry. - However, some systems do not mount anything on /. - If you need to configure busybox for one of these systems, - you may find it useful to turn this option off to make df show - initramfs statistics. + However, some systems do not mount anything on /. + If you need to configure busybox for one of these systems, + you may find it useful to turn this option off to make df show + initramfs statistics. - Otherwise, choose Y. + Otherwise, choose Y. config MONOTONIC_SYSCALL bool "Use clock_gettime(CLOCK_MONOTONIC) syscall" default y select PLATFORM_LINUX help - Use clock_gettime(CLOCK_MONOTONIC) syscall for measuring - time intervals (time, ping, traceroute etc need this). - Probably requires Linux 2.6+. If not selected, gettimeofday - will be used instead (which gives wrong results if date/time - is reset). + Use clock_gettime(CLOCK_MONOTONIC) syscall for measuring + time intervals (time, ping, traceroute etc need this). + Probably requires Linux 2.6+. If not selected, gettimeofday + will be used instead (which gives wrong results if date/time + is reset). config IOCTL_HEX2STR_ERROR bool "Use ioctl names rather than hex values in error messages" default y help - Use ioctl names rather than hex values in error messages - (e.g. VT_DISALLOCATE rather than 0x5608). If disabled this - saves about 1400 bytes. + Use ioctl names rather than hex values in error messages + (e.g. VT_DISALLOCATE rather than 0x5608). If disabled this + saves about 1400 bytes. config FEATURE_HWIB bool "Support infiniband HW" default y help - Support for printing infiniband addresses in network applets. + Support for printing infiniband addresses in network applets. diff --git a/libbb/common_bufsiz.c b/libbb/common_bufsiz.c index f1124ba0e..6bc6d7bc9 100644 --- a/libbb/common_bufsiz.c +++ b/libbb/common_bufsiz.c @@ -10,35 +10,35 @@ //config: bool "Use the end of BSS page" //config: default n //config: help -//config: Attempt to reclaim a small unused part of BSS. +//config: Attempt to reclaim a small unused part of BSS. //config: -//config: Executables have the following parts: -//config: = read-only executable code and constants, also known as "text" -//config: = read-write data -//config: = non-initialized (zeroed on demand) data, also known as "bss" +//config: Executables have the following parts: +//config: = read-only executable code and constants, also known as "text" +//config: = read-write data +//config: = non-initialized (zeroed on demand) data, also known as "bss" //config: -//config: At link time, "text" is padded to a full page. At runtime, all "text" -//config: pages are mapped RO and executable. +//config: At link time, "text" is padded to a full page. At runtime, all "text" +//config: pages are mapped RO and executable. //config: -//config: "Data" starts on the next page boundary, but is not padded -//config: to a full page at the end. "Bss" starts wherever "data" ends. -//config: At runtime, "data" pages are mapped RW and they are file-backed -//config: (this includes a small portion of "bss" which may live in the last -//config: partial page of "data"). -//config: Pages which are fully in "bss" are mapped to anonymous memory. +//config: "Data" starts on the next page boundary, but is not padded +//config: to a full page at the end. "Bss" starts wherever "data" ends. +//config: At runtime, "data" pages are mapped RW and they are file-backed +//config: (this includes a small portion of "bss" which may live in the last +//config: partial page of "data"). +//config: Pages which are fully in "bss" are mapped to anonymous memory. //config: -//config: "Bss" end is usually not page-aligned. There is an unused space -//config: in the last page. Linker marks its start with the "_end" symbol. +//config: "Bss" end is usually not page-aligned. There is an unused space +//config: in the last page. Linker marks its start with the "_end" symbol. //config: -//config: This option will attempt to use that space for bb_common_bufsiz1[] -//config: array. If it fits after _end, it will be used, and COMMON_BUFSIZE -//config: will be enlarged from its guaranteed minimum size of 1 kbyte. -//config: This may require recompilation a second time, since value of _end -//config: is known only after final link. +//config: This option will attempt to use that space for bb_common_bufsiz1[] +//config: array. If it fits after _end, it will be used, and COMMON_BUFSIZE +//config: will be enlarged from its guaranteed minimum size of 1 kbyte. +//config: This may require recompilation a second time, since value of _end +//config: is known only after final link. //config: -//config: If you are getting a build error like this: -//config: appletlib.c:(.text.main+0xd): undefined reference to '_end' -//config: disable this option. +//config: If you are getting a build error like this: +//config: appletlib.c:(.text.main+0xd): undefined reference to '_end' +//config: disable this option. //kbuild:lib-y += common_bufsiz.o diff --git a/libbb/parse_config.c b/libbb/parse_config.c index 408439766..307ae2cd2 100644 --- a/libbb/parse_config.c +++ b/libbb/parse_config.c @@ -13,7 +13,7 @@ ////config: bool "Uniform config file parser debugging applet: parse" ////config: default n ////config: help -////config: Typical usage of parse API: +////config: Typical usage of parse API: ////config: char *t[3]; ////config: parser_t *p = config_open(filename); ////config: while (config_read(p, t, 3, 0, delimiters, flags)) { // 1..3 tokens diff --git a/libbb/u_signal_names.c b/libbb/u_signal_names.c index b49714f2a..bf984a44e 100644 --- a/libbb/u_signal_names.c +++ b/libbb/u_signal_names.c @@ -11,8 +11,8 @@ //config: bool "Support RTMIN[+n] and RTMAX[-n] signal names" //config: default y //config: help -//config: Support RTMIN[+n] and RTMAX[-n] signal names -//config: in kill, killall etc. This costs ~250 bytes. +//config: Support RTMIN[+n] and RTMAX[-n] signal names +//config: in kill, killall etc. This costs ~250 bytes. #include "libbb.h" |