Commit Graph

86 Commits

Author SHA1 Message Date
tg 7cce9de0bc one can’t cast an unsigned int to a signed int portably either, if the value
is larger than the positive range of the latter (implementation-defined), so
avoid them in all explicit cases and rearrange stuff and check for it

(I’m gonna have to revise lots more code…)
2013-04-01 02:37:53 +00:00
tg fb3555d7f5 got an SAR, thanks to dalias on IRC 2013-04-01 02:28:35 +00:00
tg e1a4c3ed28 do use val.u on the RHS of a shift 2013-04-01 01:29:47 +00:00
tg 0f417614dd ugh, signed >> on negative values is implementation-defined
(but, at least, not undefined, and usually right; regress-test for it)
2013-04-01 01:16:37 +00:00
tg d96c733069 looks like multiplication is also the same between signed and unsigned 2013-04-01 01:02:09 +00:00
tg 6a745a01fa begin using unsigned arithmetics internally as much as possible
(i.e. where signedness doesn’t matter, given -fwrapv) and note
where there’s work to do; note future improvements and additions;
optimise a little

mostly untested
2013-03-31 18:33:13 +00:00
tg 24b81b5969 RCSID-only sync: oksh found out about idivwrapv 2013-03-29 16:54:05 +00:00
tg 12f0ff60d2 prevent more access to invalid memories (Debian #700604) 2013-02-15 18:36:48 +00:00
tg d8662eb228 even more hacks to pass “-O666 -fstrict-overflow -Wstrict-overflow=9 -flto=jobserver” with “gcc version 4.8.0 20120930 (experimental) [trunk revision 191865] (Debian 20120930-1)” ☹ plus make the rtchecks mandatory 2012-10-03 17:24:23 +00:00
tg 0415b74436 Update wcwidth data from Unicode 6.1.0 2012-09-01 23:46:41 +00:00
tg c1f821d4e5 (mksh) tighten 32-bit requirements; (lksh) switch to long; allow any bitness 2012-06-28 20:17:39 +00:00
tg dc5ae267ce make tempvar() and vtemp global 2012-06-28 20:02:29 +00:00
tg 9646c98356 I give up on writing (1 << 31) in any form.
Now we just use 0x80000000UL and cast that to mksh_uari_t and,
if required, that to mksh_ari_t afterwards.
2012-03-31 17:52:33 +00:00
tg e67b98e21b use _setjmp/_longjmp on NeXTstep: its Intel port always restores the signal mask on siglongjmp, which we never have 2012-03-31 17:30:00 +00:00
tg cf75e7b6ce couple of minor/cosmetic fixes from RT’s compile farm:
• promote SCO OpenServer and UnixWare to !oswarn
• omit trying -O2/-O on OpenServer 5 and USL C
• cast mksh_ari_t to int, mksh_uari_t to unsigned int for printf
• skip ulimit-1 on syllable (which is still too broken)
• write ((mksh_ari_t)-2147483648) ipv UB ((mksh_ari_t)1 << 31)
  and add a comment that that is actually meant
• rewrite functions returning !void ending in NOTREACHED
  so they’ve got a jump target returning an error at the
  end, to aid older compilers and just to be safe
• cast struct stat.st_size to off_t or size_t explicitly when needed
• shorten struct env by two bytes and an alignment, at least

also, optimise control flow and fix more paren matching cases
2012-03-29 19:23:01 +00:00
tg 7ec1ae3771 followup for cid 1004EE408E1382C1752 and 1004EE40DDD498FBB0D:
do a mirtoconf run-time check (ugh) to see whether the CPU designers
smoked/were brain-dead or if we don’t actually need the manual check
2011-12-31 02:04:18 +00:00
tg 5070ea2387 skip R/O check in an unevaluated ternary part; 10x jilles 2011-12-16 20:03:02 +00:00
tg e18f4d114a actually, behave with silent wraparound; results validated by bc(1) 2011-12-11 01:56:43 +00:00
tg 971b153933 catch intmin/-1 instead of dumping core on SIGFPE; from Jilles Tjoelker 2011-12-11 01:35:10 +00:00
tg 9782f6b4d1 • access(2) is broken in at least kFreeBSD 9.0 as “modern” OS, so bring
back the wrapper code as well as refactor most other code calling it
• apparently, names can’t end in ‘_’ or contain ‘__’ anywhere…
2011-09-07 15:24:22 +00:00
tg 577c918beb patch most of Jerker Bäck’s concerns out, unless not applicable 2011-08-27 18:06:52 +00:00
tg 210608b199 regenerate all wcwidth code from UCD 6.0.0 and related tables,
and mgk25’s wcwidth.c 5.0 code; add check against 2-byte wchar_t;
optimise libc wcwidth(3) implementation taken from mksh and sync these
2010-12-11 16:05:03 +00:00
tg e57379aab7 regenerate from Unicode 6.0.0 2010-11-01 17:28:49 +00:00
tg 3747722db4 improve string pooling: saves 316 bytes in .text 2010-08-28 18:50:58 +00:00
tg 23f3f58d14 on MirBSD we can use the system wcwidth() and save ~800by on the ramdisc 2010-08-14 21:35:13 +00:00
tg f3b3b4b1fb remove some debugging code 2010-01-25 14:38:04 +00:00
tg 769e222586 re-vamp __attribute__ handling; let this pass on HP-UX bundled compiler
as well as HP aCC
2009-12-12 22:27:10 +00:00
tg a77bbf6123 HP aCC tells me I'm using "const" twice, and /usr/ccs/bin/cc even
errors out here. Let's hope that this form will *still* have the
entirety of that array in .rodata...

XXX more to come, thanks to HP DSPP PvP, e.g. __attribute__ stuff
2009-12-08 19:23:34 +00:00
tg 703551bd4f attempt a better fix: break off widthadj upon encountering NUL,
add remaining columns as octets (should also speed optimise)
2009-12-05 20:17:59 +00:00
tg a09f05e77a /me is annoyed
I read, IIRC in the Cederqvist, that 'cvs tag' sets a sticky tag onto
the cwd… it doesn’t, apparently. (I actually like it better this way,
but one needs to know!)
2009-11-28 14:28:03 +00:00
tg 883d9d99b3 switch ${%foo} to wcswidth-like behaviour – slightly problematic, and
the “set +U” case isn’t even handled

committed to branch because I’d like to get more input on this, for now
2009-11-28 14:21:47 +00:00
tg 73147a7fe9 fix lazy evaluation of assignments in ternary ops 2009-10-04 13:19:33 +00:00
tg 7b7b75b026 * move the utf_* functions to a smaller file, to reduce the pain the
CPU has to endure while gcc is crunching on edit.c
* comment on mksh not using _exactly_ OPTU-8/OPTU-16 (XXX)
2009-09-26 04:01:34 +00:00
tg 1a28786229 * shrink MKSH_SMALL even further by removing functionality like
some GNU bash extensions (suggested by cnuke@) and bind macros
* make the random cache more efficient (and the code potentially
  smaller, although we have a new implementation of the oaat hash
  function, alongside the old one, now) and pushb only if needed
  (i.e. state has changed or user has set $RANDOM, but not onfork)
2009-09-23 18:04:58 +00:00
tg 9dd98da40d Support Dave Korn’s alternative 「'a'」 (or 「'…'」) form for base-one
integers in addition to my 「1#a」 (or 「1#…」), which also allows for
finer end-of-character checking. Note that this is locale-dependent in
ksh93, set ±U dependent in mksh, and mksh’s OPTU-16 encoding is used.
2009-09-06 17:55:55 +00:00
tg 9b8d4023fa … but since I liked the bonus of having the hval stored so much, merge
it with the array index; var.c says that
│ 1244         /* The table entry is always [0] */
so that we can have a special flag and a union which stores hval for
the table index, the array index otherwise (coïncidentally *hint hint*
they have the same size)
2009-08-28 21:01:27 +00:00
tg bb7a720a00 for now, until we really use kt*() otherwise, ifdef out tablep/hval 2009-08-28 20:38:43 +00:00
tg 4ccdfc8508 much better solution: save tablep and hash value¹ in the struct tbl entry
① also saves time during texpand :D

XXX this doesn’t work well with the current indexed-array implementation
2009-08-28 20:30:59 +00:00
tg 0e1266ef90 While mksh R39 builds fine on MirOS #7s8E on my trusty sparc, pgcc 2.95.3
throws out quite some warnings – fix most of them except most emitted via
-Wconversion; work around some others; discard bogus warnings.

sync clog
2009-08-08 13:08:53 +00:00
tg 0432f97ffe more KNF, mostly whitespace, this time more manual labour applying style(9) 2009-06-10 18:12:51 +00:00
tg bbf00b5d93 merge fix from oksh:
"let --" was crashing ksh; found by phy0@rambler.ru.  Various other expressions
involving ++ and -- also ran into this. Insufficient checks for end of parse in
the tokenizer made it assume that an lvalue had been found
2009-06-08 20:13:07 +00:00
tg 6b2ad96bac some rather mechanical KNF, now that style(9) clarified on the status
of sizeof() as a function-like unary operator; use parenthesēs around
sizeof and return args consistently too
2009-06-08 20:06:50 +00:00
tg b145ca5c9f • sync distrib/special/mksh/Makefile with bin/mksh/Build.sh and
fix the regression test’s results while here, which have been
  broken since cid 10049D9BE5254CE65B8
• get rid of separate copyright file which was intended for De-
  bian; track down commits in all files of oksh-mirbsd and mksh
  to get correct copyright years per-file, as is BSD custom
2009-05-16 16:59:42 +00:00
tg 8a7223d4cd split utf_ptradjx into utf_ptradj function (to save space) and
self-assignment macro; remove some uses of the macro in favour
of foo += utf_ptradj(foo)
2009-05-16 15:09:07 +00:00
tg 9e83002841 try to do some optimum struct packing except for struct env
(pointers, longs, size_t first; time_t next; int etc. then enum, bool)
2009-04-07 18:41:37 +00:00
tg 32bc1dc40e sprinkle mksh_ari_t to limit arithmetics to 32 bit even
on Debian Lenny/amd64 (XXX need more verification; this
can be used for 64 bit arithmetics later too)

PPID, PGRP, RANDOM, USER_ID are now unsigned by default
2009-03-14 18:12:55 +00:00
tg 858d8e8b5a implement unsigned arithmetics as an mksh extension 2008-12-17 19:39:23 +00:00
tg 31d1499219 * back out almost all of the memory allocator related changes, as aalloc
was hard to type and hard to fix, galloc is also hard to fix, and some
  things I learned will probably improve things more but make me use the
  original form as base (especially for space savings)
* let sizeofN die though, remove even more casts
* optimise, polish
* regen Makefiles
* sprinkle a few /* CONSTCOND */ while here
2008-12-13 17:02:18 +00:00
tg 4d3fc2413e switch to a (nmemb,size) API from a (nmemb*size) API
cost: text += (308, 256, 4, -100)
2008-11-12 00:54:52 +00:00
tg 88d7b7d08b • rewrite code to no longer use statements-as-expressions
• optimise a little
• Build.sh: remove HAVE_EXPSTMT test
• Build.sh, */Makefile: sort tests, regenerate
• mksh.hts: sync clog
2008-10-28 14:32:43 +00:00