Commit Graph

10 Commits

Author SHA1 Message Date
Matthew Flatt
6d3fc30233 avoid fasl overflow of C stack
When writing a fasl stream, add extra graph points as needed
to limit recursive reading to about 500 non-tail recursions.

original commit: a6759efdc6ac68e45ec8755a5fe9b75038e173a5
2018-12-28 08:26:50 -06:00
Bob Burger
4699fc1db0 improved consistency of Windows filename handling
original commit: 9017943cdba8c54c8f0acf20b037174780c10039
2018-10-22 16:17:12 -04:00
Bob Burger
831ea8ad18 changed copyright year to 2017
7.ss, scheme.1.in, comments of many files

original commit: 06f858f9a505b9d6fb6ca1ac97234927cb2dc641
2017-04-06 11:41:33 -04:00
Kent Dybvig
c503362914 - various tweaks to the immutable object support; also taught cp0
to simplify ($fxu< (most-positive-fixnum) e) => (fx< e 0) so we
  don't have any incentive in special casing length checks where
  the maximum length happens to be (most-positive-fixnum).
    5_4.ss, 5_6.ss, bytevector.ss, cmacros.ss, cp0.ss, cpnanopass.ss,
    mkheader.ss, primdata.ss, prims.ss,
    fasl.c, gc.c, types.h
    root-experr*, patch*

original commit: 9eb63deda025fd4560b54746b21a881c01af46d6
2017-03-15 14:49:58 -04:00
dybvig
0bd87e4c4d - added tests for the case and exclusive-cond syntax-error calls
4.ms, root-experr-compile-0-f-f-f
- added print-extended-identifier parameter.  when #t, symbols like
  1+ and +++ print without escapes.
    priminfo.ss, print.ss,
    6.ms

original commit: 603019ea82afda1926462214576ef92df15e43c8
2016-08-22 21:41:53 -04:00
dybvig
b4d452cc71 - eliminated a couple of thread-safety issues and limitations on the
sizes of pathnames produced by expansion of tilde (home-directory)
  prefixes by replacing S_pathname, S_pathname_impl, and S_homedir
  with S_malloc_pathname, which always mallocs space for the result.
  one thread-safety issue involved the use of static strings for expanded
  pathnames and affected various file-system operations.  the other
  affected the file open routines and involved use of the incoming
  pathname while deactivated.  the incoming pathname is sometimes if not
  always a pointer into a Scheme bytevector, which can be overwritten if a
  collection occurs while the thread is deactivated.  the size limitation
  corresponded to the use of the static strings, which were limited to
  PATH_MAX bytes.  (PATH_MAX typically isn't actually the maximum path
  length in contemporary operating systems.)  eliminated similar issues
  for wide pathnames under Windows by adding S_malloc_wide_pathname.
  consumers of the old routines have been modified to use the new
  routines and to free the result strings.  the various file operations
  now consistently treat a pathname with an unresolvable home directory
  as a pathname that happens to start with a tilde.  eliminated unused
  foreign-symbol binding of "(cs)pathname" to S_pathname.
    io.c, externs.h, new_io.c, prim5.c, scheme.c, prim.c
- various places where a call to close or gzclose was retried when
  the close operation was interrupted no longer do so, since this can
  cause problems when another thread has reallocated the same file
  descriptor.
    new_io.c
- now using vcvarsall type x86_amd64 rather than amd64 when the
  former appears to supported and the latter does not, as is the
  case with VS Express 2015.
    c/Mf-a6nt, c/Mf-ta6nt
- commented out one of the thread mats that consistently causes
  indefinite delays under Windows and OpenBSD due to starvation.
    thread.ms
- increased wait time for a couple of subprocess responses
    6.ms
- added call to collector to close files opened during iconv mats
  specifically for when mats are run under Windows with no iconv dll.
    io.ms

original commit: ad44924307c576eb2fc92e7958afe8b615a7f48b
2016-06-16 23:04:32 -04:00
Bob Burger
39410c8447 - Cygwin is now used on Windows, updated mats, eliminated unused killme
- added a cast to eliminate warnings in c/number.c
- fixed bug in Windows version of directory-separator-predicate in s/6.ss when path-* procedures are passed a path that is not a string.
- fixed bug in s/cp0.ss on Windows with $foreign-wchar?.
- fixed spelling of non-existent

original commit: dd1b741f7572cb0d5a6210c7c796aee7c4026040
2016-06-10 10:07:07 -04:00
dybvig
bf38db8ed9 - modified floatify_normalize to properly round denormalized results and
obviated scale_float in the process.
    number.c,
    ieee.ms
- fixed 0eNNNN for large NNNN to produce 0.0 rather than infinity
    strnum.ss,
    5_3.ms
- the reader now raises an exception with condition type implementation
  restriction (among the other usual lexical condition types), and
  string->number now raises #f, for #e<m>@<a>, where <m> and <a> are
  nonzero integers, since Chez Scheme can't represent polar numbers other
  than 0@<a> and <m>@0 exactly.  <m>@<a> still produces an inexact result,
  i.e., we're still extending the set of inexact numeric constants beyond
  what R6RS dictates.  doing this required a rework of $str->num, which
  turned into a fairly extensive rewrite that fixed up a few other minor
  issues (like r6rs:string->number improperly allowing 1/2e10) and
  eliminated the need for consumers to call $str->num twice in cases
  where it actually produces a number.  added some related new tests,
  including several found lacking by profiling.  added a couple of
  checks to number->string whose absence was causing argument errors to
  be reported by other routines.
    strnum.ss, exceptions.ss, read.ss
    5_3.ms, 6.ms, root-experr*, patch*
- added pdtml flag, which if set to t causes profile-dump-html to be
  called at the end of a mat run.
    mats/Mf-base

original commit: 03f2fe86171b0fd096238280b351ce365c701450
2016-05-01 16:05:40 -04:00
dybvig
e2844450a7 - added if(---) {} wrapper around call to WRITE in display macro to
silence unused return-value warnings.
    prim5.c
- liberalized get-mode check for ../mats.  it's not our business whether
  people make their directories group and/or other writeable.
    6.ms

original commit: b90a037c9fac18fdcbce73a42f28940e85a6c07b
2016-04-27 15:42:52 -04:00
dyb
1356af91b3 initial upload of open-source release
original commit: 47a210c15c63ba9677852269447bd2f2598b51fe
2016-04-26 10:04:54 -04:00