busybox-w32/include/busybox.h, branch cron_changes

config: disentangle PREFER_APPLETS from SH_STANDALONE and SH_NOFORK

2016-07-22T16:48:38+00:00

On user request. I thought enabling/disabling them all together is more consistent. Evidently, some people do want them to be separately selectable. Signed-off-by: Denys Vlasenko

applet_tables: save space by removing applet name offsets

2016-03-29T22:44:11+00:00

The array applet_nameofs consumes two bytes per applet. It encodes nofork/noexec flags suid flags the offset of the applet name in the applet_name string Change the applet_table build tool to store the flags in two separate arrays (applet_flags and applet_suid). Replace applet_nameofs[] with a smaller version that only stores a limited number of offsets. This requires changes to the macros APPLET_IS_NOFORK, APPLET_IS_NOEXEC and APPLET_SUID. According to Valgrind the original find_applet_by_name required 353 cycles per call, averaged over all names. Adjusting the number of known offsets allows space to be traded off against execution time: KNOWN_OFFSETS cycles bytes (wrt KNOWN_OFFSETS = 0) 0 9057 - 2 4604 32 4 2407 75 8 1342 98 16 908 130 32 884 194 This patch uses KNOWN_OFFSETS = 8. v2: Remove some dead code from the applet_table tool; Treat the applet in the middle of the table as a special case. v3: Use the middle applet to adjust the start of the linear search as well as the last applet found. v4: Use an augmented linear search in find_applet_by_name. Drop the special treatment of the middle name from get_applet_name: most of the advantage now derives from the last stored value. v5: Don't store index in applet_nameofs, it can be calculated. v6: Tweaks by Denys function old new delta find_applet_by_name 25 125 +100 applet_suid - 92 +92 run_applet_no_and_exit 452 460 +8 run_applet_and_exit 695 697 +2 applet_name_compare 31 - -31 applet_nameofs 734 14 -720 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 3/1 up/down: 202/-751) Total: -549 bytes text data bss dec hex filename 925464 906 17160 943530 e65aa busybox_old 924915 906 17160 942981 e6385 busybox_unstripped Signed-off-by: Ron Yorston Signed-off-by: Denys Vlasenko

*: declare strings with ALIGN1, as appropriate

2012-07-24T13:56:37+00:00

Signed-off-by: Michael Tokarev Signed-off-by: Denys Vlasenko

applet_tables: do not include libbb.h, that header ir for target builds

2011-03-27T23:23:38+00:00

...and applets/applet_tables.c is built on *host*. Signed-off-by: Denys Vlasenko

mass removal of underscores from _BB_DIR_foo and _BB_SUID_foo

2011-01-18T12:58:01+00:00

Signed-off-by: Denys Vlasenko

tweaks to build system, mainly making menuconfig text and order clearer

2010-10-12T02:18:05+00:00

Signed-off-by: Denys Vlasenko

*: make GNU licensing statement forms more regular

2010-08-16T18:14:46+00:00

This change retains "or later" state! No licensing _changes_ here, only form is adjusted (article, space between "GPL" and "v2" and so on). Signed-off-by: Denys Vlasenko

hush: fix faloout from previous commit

2010-07-15T06:18:46+00:00

Signed-off-by: Denys Vlasenko

rename _BB_SUID_ALWAYS and NEVER into REQUIRE and DROP. No code changes.

2009-07-30T10:57:19+00:00

Signed-off-by: Denys Vlasenko

*: make "pragma GCC visibility push(hidden)" less ugly

2009-04-09T12:35:13+00:00