Commit Graph

698 Commits

Author SHA1 Message Date
christos e3fc7d5ba9 use .ORDER for rules that create multiple files. 2009-12-14 05:13:38 +00:00
uebayasi b79e178285 Rewrite file generation rules using ${GENCMD}. No functional changes intended. 2009-12-11 08:39:42 +00:00
uebayasi 58b17edd41 Define dependencies of arith.[ch] on arith.y. 2009-12-07 16:22:41 +00:00
tsutsui 49ee47d09d Use %zu in printf format for size_t value. 2009-11-27 10:50:04 +00:00
gson dddcd98c78 Removed return statement in parser action that caused a memory leak with
the new yacc, making "sh MAKEDEV -MM init" consume 27 MB of virtual memory
with the result that NetBSD could no longer be installed on a 32 MB system.
2009-11-13 13:49:09 +00:00
christos 5dfc26d510 use flex options instead of #defines 2009-10-29 14:21:40 +00:00
christos 10aa8c24e9 only for when trap if we are going to exit. 2009-10-07 18:12:11 +00:00
christos 40ab82d3c3 fix regression exit1: Don't exec the last command in a subshell if it has
trap[0] (trap EXIT) set. Fork instead to give the shell a chance to execute
the trap when it is done.
2009-10-06 20:05:10 +00:00
apb db8f79df3d Make this slightly more portable; it has to run on arbitary host
platforms at build time.  Previousy, some shells were confused by
some of the "[ ... ]" tests.
2009-10-06 19:56:58 +00:00
joerg f29cf7b612 Make indentation consistent. 2009-05-26 07:30:51 +00:00
drochner 0fa7059102 define YY_NO_INPUT where appropriate, from Kurt J. Lidl per PR misc/41160 2009-04-20 16:05:29 +00:00
wiz 7d6100a52d Bump date for previous. 2009-03-29 08:54:10 +00:00
mrg fcc023545e - add new RLIMIT_AS (aka RLIMIT_VMEM) resource that limits the total
address space available to processes.  this limit exists in most other
modern unix variants, and like most of them, our defaults are unlimited.
remove the old mmap / rlimit.datasize hack.

- adds the VMCMD_STACK flag to all the stack-creation vmcmd callers.
it is currently unused, but was added a few years ago.

- add a pair of new process size values to kinfo_proc2{}. one is the
total size of the process memory map, and the other is the total size
adjusted for unused stack space (since most processes have a lot of
this...)

- patch sh, and csh to notice RLIMIT_AS.  (in some cases, the alias
RLIMIT_VMEM was already present and used if availble.)

- patch ps, top and systat to notice the new k_vm_vsize member of
kinfo_proc2{}.

- update irix, svr4, svr4_32, linux and osf1 emulations to support
this information.  (freebsd could be done, but that it's best left
as part of the full-update of compat/freebsd.)


this addresses PR 7897.  it also gives correct memory usage values,
which have never been entirely correct (since mmap), and have been
very incorrect since jemalloc() was enabled.

tested on i386 and sparc64, build tested on several other platforms.

thanks to many folks for feedback and testing but most espcially
chuq and yamt for critical suggestions that lead to this patch not
having a special ugliness i wasn't happy with anyway :-)
2009-03-29 01:02:48 +00:00
roy 9fa1d120a0 el_gets now sets el_len to -1 on error so we can distinguish
between a NULL string and an error.
This fixes sh from exiting with libedit now allowing EINTR to return.
We may need to expand this to an errno check in the future.
2009-03-10 21:21:11 +00:00
joerg fdf2963413 Explicitly escape -- as it is not an argment to the Cm macro. 2009-03-10 15:14:28 +00:00
joerg 048b505ac7 Don't use .Xo/.Xc to workaround ancient macro argument limit. 2009-03-10 14:18:52 +00:00
joerg 997634fe14 Fix preamble to match order set out by mdoc(7). Discussed with wiz. 2009-03-09 19:24:26 +00:00
lukem 46b57afcf7 Default to WARNS=4 (except for rcp & ksh) 2009-02-14 08:31:13 +00:00
christos 8623c59aca Revert previous commit that fixes PR/36079 (shell misses exit trap), because
the fix causes $! to point to the wrong process in pipelines, which is worse.
2009-01-19 19:47:11 +00:00
lukem c6144e484f fix -Wsign-compare issues 2009-01-18 00:24:29 +00:00
christos 3957d0cafc rlim_t will be unsigned as TOG mandates. 2008-12-28 19:53:37 +00:00
christos 97f12feac9 don't free other jobs when we are specifically using the wait built-in. 2008-12-21 17:16:11 +00:00
christos 271febebf6 use EXP_CASE only when trimming and unquoted. 2008-12-21 17:15:09 +00:00
christos ae1cc09549 PR/36079: M. Levinson: Disable the optimization of not forking for the last
command in a subshell, otherwise we miss the exit trap.
2008-12-21 03:15:32 +00:00
christos 9ac082db6c PR/35055: Wada Keiji: wait did not keep the status of terminated jobs as
expected.
2008-12-21 00:19:59 +00:00
christos 26edf84a4b PR/36954: Roland Illig: don't eat backlash escapes in variable patterns.
Makes ${line%%\**} work.
2008-12-20 20:36:44 +00:00
yamt 8277de5576 document "EXIT" pseudo signal. 2008-12-11 04:34:45 +00:00
snj 976326ad53 Some spelling fixes from VaX#n8 in PR bin/23812. 2008-11-15 17:01:38 +00:00
christos c8877ef31c and if you don't succeed twice, try again. 2008-11-08 00:14:05 +00:00
christos 440e6c6264 Try a different fix for PR/11317: Don't ignore errors in list(). 2008-11-07 15:18:11 +00:00
christos 2afd855bd9 Break PR/11317 again. The counting parentheses fix does not handle case
statements properly. Fixes PR/39873.
2008-11-07 15:08:43 +00:00
christos 9fd1d5af01 PR/11317: Hubert Feyrer: Recognize mismatched parentheses inside old style
command substitution.
2008-11-05 22:04:43 +00:00
christos bc4eb9bdd7 show better quoting output for sh -x, from Aleksey Cheusov 2008-10-31 14:38:42 +00:00
apb 89799ead73 Pass SED=${TOOL_SED:Q} in the environment to scripts run during the build. 2008-10-25 22:23:55 +00:00
apb 125b7c8cbb In shell scripts run during the build, add a SED variable, defaulting
to "sed".  SED=${TOOL_SED:Q} should be passed in the environment to
override this.
2008-10-25 22:18:15 +00:00
apb 9577284633 Don't try to remove trailing newlines from shell variables via
constructs like ${var%$nl}.  Apparently this allows the Ubuntu Linux
/bin/sh (dash) to be used as a host shell during the build.
Patch from PR 39786 by Andy Shevchenko.
2008-10-23 20:21:57 +00:00
apb cd5c0f944d In shell scripts invoked during a build, and in crunchgen, use ${AWK}
instead of plain "awk".  The Makefiles that invoke these scripts
or programs will pass AWK=${HOST_AWK:Q}.
2008-10-19 22:10:04 +00:00
apb 96230fab84 Use ${TOOL_AWK} instead of ${AWK} or plain "awk" in make commands.
Pass AWK=${TOOL_AWK:Q} to shell scripts that use awk.
2008-10-19 22:05:19 +00:00
dholland 7fb5a8c68e The field width passed for a %.*s printf format is supposed to be int, not
ptrdiff_t; on 64-bit platforms the latter will be too wide.
Adjust accordingly.
2008-10-16 17:58:29 +00:00
dholland 72c2627f1f Wrap declaration of a STATIC function that's only conditionally defined
in a suitable ifdef, so things still compile if STATIC is defined as
"static", which is for some reason not the default.
2008-10-16 15:36:23 +00:00
dholland 744c8edc4b Wrap declaration of a STATIC function that's only conditionally defined
in a suitable ifdef, so things still compile if STATIC is defined as
"static", which is for some reason not the default.

(In the long run STATIC should go away - it might have once been a
portability hack but now definitely serves no purpose.)
2008-10-16 15:31:05 +00:00
dholland e54c6daca4 Remove unused global variables 2008-10-16 14:55:28 +00:00
dholland 0faa1734e3 Use "extern" properly for referencing globals defined in other modules.
Now builds cleanly with -warn-common.
2008-10-16 14:36:40 +00:00
dholland 30a1416240 output.c output.h: expose OUTPUT_ERR (flag for an exposed flags variable)
bltin.h: support ferror()
echo.c: use ferror() to fail on output write errors

Another piece of PR bin/39574.
2008-10-12 01:40:37 +00:00
christos 8c54d84110 Fix here documents that end abruptly without NL before EOF.
(Andy Shevchenko)
2008-08-23 10:05:52 +00:00
lukem 2fe2731d3f Remove the \n and tabs from the __COPYRIGHT() strings. 2008-07-20 00:52:39 +00:00
tron 9cae530b67 Revert revisions 1.91 and 1.92. The POSIX spec about the correct behaviour
is contradictory at best. And these changes seem to cause more problems
that they are worth.
2008-05-26 14:55:17 +00:00
tron 4d6f948f7a Fix two more cases of bad handling of "set -e":
- false && false
- false || false
2008-05-24 22:24:32 +00:00
tron c2987416cd Fix another problem with "set -e": "! true" should terminate the shell. 2008-05-24 19:06:43 +00:00
tron 35fbf8dd7f Port revision 1.44 of "src/bin/sh/eval.c" from FreeBSD to fix PR bin/38584.
Reviewed by Michael van Elst.
2008-05-24 17:12:53 +00:00
martin 3028e483e4 Convert to new 2 clause license 2008-04-29 06:53:00 +00:00
christos 76560beef5 Detect unmatched quotes inside old style command substitution.
echo `"`
2008-04-25 17:32:31 +00:00
apb cd12700971 If SHELL_BUILTIN is defined (as will be the case when building external
builtins such as the printf command), then hide a few declarations.

This allows the shell to build again, fixing a problem with
"error" being declared as a function here, and as a variable in
.../usr.bin/printf/printf.c.
2008-03-29 09:58:00 +00:00
apb d6d9ccc8ad * define SHELL_BUILTIN, which other headers may use to hide some of their
symbols if appropriate.  For example, error.h will use it to hide
  declarations that should not be seen by external builtins such as printf.
* The shell's outfmt() function returns void, but the standard fprintf()
  function returns int.  Similarly for several other functions that are
  redefined via macros in bltin.h.  Add a _RETURN_INT macro to do the
  necessary conversion.
* Delete some declarations that appear in error.h.
* Add comments on some #else/#endif lines.
2008-03-29 09:55:40 +00:00
apb 074a931bf5 Remove trailing ';' in definitions of out1c and out2c macros. 2008-03-29 09:49:52 +00:00
dsl 01709217fc Generate ANSI functions.
Just indent the code by a single tab - no need to compare against the
C program generated version any more.
2008-02-27 21:56:14 +00:00
dsl b63023e666 Change spaces to tabs for consistency with adjacent lines. 2008-02-27 21:55:07 +00:00
matt 4498b1fe25 Fix inconsistent definitions 2008-02-15 17:26:06 +00:00
joerg f04ccd71b4 Set unique mode for the history, so that repeating a command doesn't
spam the history.
2008-02-13 12:57:16 +00:00
msaitoh 899c734b12 Conform to XCU Section 2.8.2 (Exit Status for Commands) 2008-01-21 06:43:03 +00:00
dogcow 90ee124aaf This should have been all on one line anyway - and hey, it fixes my build
issue.
2007-12-18 07:25:00 +00:00
perry 8b0f9554ff convert __attribute__s to applicable cdefs.h macros 2007-12-15 19:44:37 +00:00
lukem bcf893f432 use __RCSID() 2007-12-12 22:55:42 +00:00
christos 2554aff24b PR/36531: Greg A. Woods: another very helpful DEBUG TRACE() call for execve()
failures in /bin/sh
2007-06-24 18:36:23 +00:00
christos 546dff6580 PR/36533: Greg A. Woods: minor doc fixes for sh(1) 2007-06-24 17:57:56 +00:00
dsl 8da3353686 Fix sh -c 'true && ! true | false; echo $?'
Add some more TRACE((...)) calls to aid such debugging.
Fixes PR bin/36435
Clearly no one tried this test when the changes of rev 1.31 and 1.44 were done!
2007-06-07 20:57:59 +00:00
apb faafdc7e21 Document that shell arithmetic now uses intmax_t. Document that
variables in shell arithmetic don't need "$" signs.
2007-03-25 06:56:43 +00:00
apb 1a20cbd95e WARNS=4 2007-03-25 06:30:37 +00:00
apb 91ce988bec Make /bin/sh use intmax_t (instead of int) for arithmetic in $((...)). 2007-03-25 06:29:26 +00:00
rillig 9da5e43f4d Since interpreting ELF binaries as shell scripts is not very useful, and
since the current error message is less than helpful, improve it.
2007-02-15 12:02:59 +00:00
christos 30760cbdc7 PR/35410: Valeriy E. Ushakov: /bin/sh mishandles shell function definitions
with function names that are not plain words
1. remove the escape annotations from the function name.
2. check if the function has a valid name before storing it.
2007-01-13 18:58:26 +00:00
christos a54fe38a0d fix a volatile variable; from Anon Ymous 2006-12-18 00:37:33 +00:00
wiz 5c056f6785 s/apparant/apparent/, from Zafer. 2006-11-24 22:54:47 +00:00
christos 272937609b sprinkle volatile. 2006-10-16 00:36:19 +00:00
christos ab28bede4c Prefix "Syntax Error" with the program name, if the command name is not
available. At least this way we get an idea of what program gives us the
message.
2006-10-04 15:00:38 +00:00
dsl 1719403bf2 Fix typo, update date.
Fixes PR/34472
2006-09-04 20:30:36 +00:00
dsl c58b829dda Set the 'not a parameter' flag when we skip initial whitespace.
Otherwise:
    ./sh -c 'x=" "; for a in $x; do echo a${a}a; done'
is processed as a single empty parameter (instead of no parameters).
Should fix the breakage I introdiced in rev 1.75 and PR/34256 and PR/34254
2006-08-22 18:11:42 +00:00
dsl 413b7762c2 Rework the code changes from revisions 1.69, 1.70 and 1.74 so that the code
behaves correctly.
As far as I can tell, "x$@y" now expands correctly, as does IFS=:; set -$IFS.
Fixes PR/33472 (again) and PR/33956
2006-08-21 21:30:14 +00:00
christos a8b3562160 PR/33775: YAMAMOTO Takashi: /bin/sh doesn't accept "(" before case patterns 2006-06-20 15:57:44 +00:00
dsl 0e765f005a When expanding "$@" add a \0 byte after the last argument (as well as all
the earlier ones) so that a separator is added before it when it is empty.
This wasn't needed before a recent change that chenged the behaviour of
trailing whitespace IFS characters.
Fixed PR/33472
2006-05-20 13:57:27 +00:00
christos e80f354dab Coverity CID 3384: Don't close -1. 2006-05-13 19:47:22 +00:00
mrg 084c052803 quell GCC 4.1 uninitialised variable warnings.
XXX: we should audit the tree for which old ones are no longer needed
after getting the older compilers out of the tree..
2006-05-10 21:53:14 +00:00
simonb 15dc85722d Make the change for bin/31548 to set $PWD on shell startup non-fatal if
the current directory doesn't exist.
2006-05-04 11:16:53 +00:00
snj a640fe8c43 It's "its." 2006-04-24 19:00:29 +00:00
snj bf5ceaae16 It's "its." 2006-04-24 18:00:53 +00:00
christos da09d1a838 PR/33281: Martin J. Laubach: Prevent core-dump on "echo abc | { }". bash
prints and error and ksh prints nothing. We go the ksh way.
2006-04-18 14:44:05 +00:00
christos 3e359756c9 Coverity CID 620: Remove dead code. 2006-03-18 05:25:56 +00:00
christos f6828859fa Coverity CID 890: Possible NULL pointer deref. 2006-03-18 05:23:08 +00:00
christos 169a269417 Coverity CID 1329: Possible NULL deref. 2006-03-18 05:17:36 +00:00
christos df8cbb182e Coverity CID 2479: Clarify confusion about uninitialized variable in the
presence of setjmp/vfork.
2006-03-17 17:20:47 +00:00
rumble 2174dda221 Handle asprintf failing to allocate. 2006-03-17 14:43:11 +00:00
aymeric d5d0c11532 Make the -s flag of fc work correctly. Ensure that only one command is specified
and ensure that we break out of the loop after executing it.
With the previous code, because the re-executed command was added to the
history, it would think that it still had to execute it, leading to an infinite
loop.

The last thing which differs from ksh is that we get the "fc -s " command into
the history, but this is actually rather a feature in my humble opinion.

To test:
$ echo hello
$ fc -s ec
<infinite loop or correct behaviour>
2006-03-06 00:09:22 +00:00
garbled 6ac601d8c4 Add error printing for ENAMETOOLONG. Partially addresses PR bin/13850 .
The actual bug mentioned in that PR no longer exists, but it does cause:
~~~~~: error 63
Which this fix cleans up.
2006-01-02 19:10:33 +00:00
dsl ea2078818f TOG require that 'set +o' output the options in a form suitable for
restoring them - make it so.
2005-12-13 17:44:18 +00:00
dsl e60beff86b Don't change the name of the directory we are going to 'cd' to just because
we decide to remove a leading "./" when deciding whether to print the name.
Stops 'cd .//tmp' ending up the same as 'cd /tmp'.
Fixes PR/30735
2005-11-26 21:44:43 +00:00
christos 8d6ffce2ad PR/31548: Alexander Rigbo: $PWD not set when shell starts up, before pwd
or cd get executed.
2005-10-10 21:14:42 +00:00
christos c05266af8a fix setmode error handling. 2005-10-01 20:23:54 +00:00
tv 964f98e703 Make slightly more portable without extra conditionals needed:
- Use getpgrp() rather than getpgid(0).
  (getpgrp() is already used elsewhere in this same file.)

- Use waitpid(-1, a, b) rather than wait3(a, b, NULL).
2005-09-30 18:57:55 +00:00
wiz 2ea3362a10 In mdoc, use .Pp for new paragraphs, not .br. 2005-09-10 22:09:43 +00:00
dsl 8c772bc707 Don't apply CDPATH if the the first component of the target is "." or "..".
Fixes PR/30973 and applies the principle of least surprise.
Update documentation to match (including date).
(matches behaviour of pdksh - if not it's documentation)
2005-08-20 21:07:42 +00:00