and functionality improvements (including support for measuring
coverage), primitive argument-checking fixes, and object-file changes
resulting in reduced load times (and some backward incompatibility):
- annotations are now preserved in object files for debug
only, for profiling only, for both, or not at all, depending
on the settings of generate-inspector-information and
compile-profile. in particular, when inspector information
is not enabled but profiling is, source information does
not leak into error messages and inspector output, though it is
still available via the profile tools. The mechanics of this
involved repurposing the fasl a? parameter to hold an annotation
flags value when it is not #f and remaking annotations with
new flags if necessary before emitting them.
compile.ss, fasl.ss, misc.ms
- altered a number of mats to produce correct results even
when the 's' directory is profiled.
misc.ms, cp0.ms, record.ms
- profile-release-counters is now generation-friendly; that is,
it doesn't look for dropped code objects in generations that have
not been collected since the last call to profile-release-counters.
also, it no longer allocates memory when it releases counters.
pdhtml.ss,
gc.c, gcwrapper.c, globals.h, prim5.c
- removed unused entry points S_ifile, S_ofile, and S_iofile
alloc.c, externs.h
- mats that test loading profile info into the compiler's database
to guide optimization now weed out preexisting entries, in case
the 's' directory is profiled.
4.ms, mat.ss, misc.ms, primvars.ms
- counters for dropped code objects are now released at the start
of each mat group.
mat.ss
- replaced ehc (enable-heap-check) option with hci (heap-check-interval)
option that allows heap checks to be performed periodically rather
than on each collection. hci=0 is equivalent to ehc=f (disabling
heap checks) and hci=1 is equivalent to ehc=t (enabling heap
checks every collection), while hci=100 enables heap checks only
every 100th collection. allx and bullyx mats use this feature
to reduce heap-checking overhead to a more reasonable level. this
is particularly important when the 's' directory is profiled,
since the amount of static memory to be checked is greatly increased
due to the counters.
mats/Mf-base, mat.ss, primvars.ms
- added a mat that calls #%show-allocation, which was otherwise not
being tested.
misc.ms
- removed a broken primvars mat and updated two others. in each case,
the mat was looking for information about primitives in the wrong
(i.e., old) place and silently succeeding when it didn't find any
primitives to tests. the revised mats (along with a few others) now
check to make sure at least one identifier has the information they
look for. the removed mat was checking for library information that
is now compiled in, so the mat is now unnecessary. the others were
(not) doing argument-error checks. fixing these turned up a handful of
problems that have also been fixed: a couple of unbound variables in the
mat driver, two broken primdata declarations, a tardy argument check
by profile-load-data, and a bug in char-ready?, which was requiring
an argument rather than defaulting it to the current input port.
primdata.ss, pdhtml.ss, io.ms,
primdvars.ms, 4.ms, 6.ms, misc.ms, patch*
- added initial support for recording coverage information. when the
new parameter generate-covin-files is set, the compiler generates
.covin files containing the universe of all source objects for which
profile forms are present in the expander output. when profiling
and generation of covin files are enabled in the 's' directory, the
mats optionally generate .covout files for each mat file giving
the subset of the universe covered by the mat file, along with an
all.covout in each mat output directory aggregating the coverage
for the directory and another all.covout in the top-level mat
directory aggregating the coverage for all directories.
back.ss, compile.ss, cprep.ss, primdata.ss, s/Mf-base,
mat.ss, mats/Mf-base, mats/primvars.ms
- support for generating covout files is now built in. with-coverage-output
gathers and dumps coverage information, and aggregate-coverage-output
combines (aggregates) covout files.
pdhtml.ss, primdata.ss, compile.ss,
mat.ss, mats/Mf-base, primvars.ms
- profile-clear now adjusts active coverage trackers to avoid losing
coverage information.
pdhtml.ss,
prim5.c
- nested with-coverage calls are now supported.
pdhtml.ss
- switched to a more compact representation for covin and covout files;
reduces disk space (compressed or not) by about a factor of four
and read time by about a factor of two with no increase in write time.
primdata.ss, pdhtml.ss, cprep.ss, compile.ss,
mat.ss, mats/Mf-base
- added support for determining coverage for an entire run, including
coverage for expressions hit during boot time. 'all' mats now produce
run.covout files in each output directory, and 'allx' mats produce
an aggregate run.covout file in the mat directory.
pdhtml.ss,
mat.ss, mats/Mf-base
- profile-release-counters now adjusts active coverage trackers to
account for the counters that have been released.
pdhtml.ss,
prim5.c
- replaced the artificial "examples" target with a real "build-examples"
target so make won't think it always has to mats that depend upon
the examples directory having been compiled. mats make clean now
runs make clean in the examples directory.
mats/Mf-base
importing a library from an object file now just visits the object
file rather than doing a full load so that the run-time code for
the library is not retained. The run-time code is still read
because the current fasl format forces the entire file to be read,
but not retaining the code can lower heap size and garbage-collection
cost, particularly when many object-code libraries are imported.
The downside is that the file must be revisited if the run-time
code turns out to be required. This change exposed several
places where the code was failing to check if a revisit is needed.
syntax.ss,
7.ms, 8.ms, misc.ms, root-experr*
- fixed typos: was passing unquoted load rather than quoted load
to $load-library along one path (where it is loading source code
and therefore irrelevant), and was reporting src-path rather than
obj-path in a message about failing to define a library.
syntax.ss
- compile-file and friends now put all recompile information in
the first fasl object after the header so the library manager can
find it without loading the entire fasl file. The library manager
now does so. It also now checks to see if library object files
need to be recreated before loading them rather than loading them and
possibly recompiling them after discovering they are out of date, since
the latter requires loading the full object file even if it's out of
date, while the former takes advantage of the ability to extract just
recompile information. as well as reducing overhead, this eliminates
possibly undesirable side effects, such as creation and registration
of out-of-date nongenerative record-type descriptors. because the
library manager expects to find recompile information at the front of
an object file, it will not find all recompile information if object
files are "catted" together. also, compile-file has to hold in memory
the object code for all expressions in the file so that it can emit the
unified recompile information, rather than writing to the object file
incrementally, which can significantly increase the memory required
to compile a large file full of individual top-level forms. This does
not affect top-level programs, which were already handled as a whole,
or a typical library file that contains just a single library form.
compile.ss, syntax.ss
- the library manager now checks include files before library dependencies
when compile-imported-libraries is false (as it already did when
compile-imported-libraries is true) in case a source change affects
the set of imported libraries. (A library change can affect the set
of include files as well, but checking dependencies before include
files can cause unneeded libraries to be loaded.) The include-file
check is based on recompile-info rather than dependencies, but the
library checks are still based on dependencies.
syntax.ss
- fixed check for binding of scheme-version. (the check prevents
premature treatment of recompile-info records as Lexpand forms
to be passed to $interpret-backend.)
scheme.c
- strip-fasl-file now preserves recompile-info when compile-time info
is stripped.
strip.ss
- removed include-req* from library/ct-info and ctdesc records; it
is no longer needed now that all recompile information is maintained
separately.
expand-lang.ss, syntax.ss, compile.ss, cprep.ss, syntax.ss
- changed the fasl format and reworked a lot of code in the expander,
compiler, fasl writer, and fasl reader to allow the fasl reader
to skip past run-time information when it isn't needed and
compile-time information when it isn't needed. Skipping past
still involves reading and decoding when encrypted, but the fasl
reader no longer parses or allocates code and data in the portions
to be skipped. Side effects of associating record uids with rtds
are also avoided, as are the side effects of interning symbols
present only in the skipped data. Skipping past code objects
also reduces or eliminates the need to synchronize data and
instruction caches. Since the fasl reader no longer returns
compile-time (visit) or run-time (revisit) code and data when not
needed, the fasl reader no longer wraps these objects in a pair
with a 0 or 1 visit or revisit marker. To support this change,
the fasl writer generates separate top-level fasl entries (and
graphs) for separate forms in the same top-level source form
(e.g., begin or library). This reliably breaks eq-ness of shared
structure across these forms, which was previously broken only
when visit or revisit code was loaded at different times (this
is an incompatible change). Because of the change, fasl "groups"
are no longer needed, so they are no longer handled.
7.ss, cmacros.ss, compile.ss, expand-lang.ss, strip.ss,
externs.h, fasl.c, scheme.c,
hash.ms
- the change above is surfaced in an optional fasl-read "situation"
argument (visit, revisit, or load). The default is load. visit
causes it to skip past revisit code and data; revisit causes it
to skip past visit code and data; and load causes it not to skip
past either. visit-revisit data produced by (eval-when (visit
revisit) ---) is never skipped.
7.ss, primdata.ss,
io.stex
- to improve compile-time and run-time error checking, the
Lexpand recompile-info, library/rt-info, library-ct-info, and
program-info forms have been replaced with list-structured forms,
e.g., (recompile-info ,rcinfo).
expand-lang.ss, compile.ss, cprep.ss, interpret.ss, syntax.ss
- added visit-compiled-from-port and revisit-compiled-from-port
to complement the existing load-compiled-from-port.
7.ss, primdata.ss,
7.ms,
system.stex
- increased amount read when seeking an lz4-encrypted input
file from 32 to 1024 bytes at a time
compress-io.c
- replaced the fasl a? parameter value #t with an "all" flag value
so it's value is consistently a mask.
cmacros.ss, fasl.ss, compile.ss
- split off profile mats into a separate file
misc.ms, profile.ms (new), root-experr*, mats/Mf-base
- added coverage percent computations to mat allx/bullyx output
mat.ss, mats/Mf-base, primvars.ms
- replaced coverage tables with more generic and generally useful
source tables, which map source objects to arbitrary values.
pdhtml.ss, compile.ss, cprep.ss, primdata.ss,
mat.ss, mats/Mf-base, primvars.ms, profile.ms,
syntax.stex
- reduced profile counting overhead by using calls to fold-left
instead of calls to apply and map and by using fixnum operations
for profile counts on 64-bit machines.
pdhtml.ss
- used a critical section to fix a race condition in the calculations
of profile counts that sometimes resulted in bogus (including
negative) counts, especially when the 's' directory is profiled.
pdhtml.ss
- added discard flag to declaration for hashtable-size
primdata.ss
- redesigned the printed representation of source tables and rewrote
get-source-table! to read and store incrementally to reduce memory
overhead.
compile.ss
- added generate-covin-files to the set of parameters preserved
by compile-file, etc.
compile.ss,
system.stex
- moved covop argument before the undocumented machine and hostop
arguments to compile-port and compile-to-port. removed the
undocumented ofn argument from compile-to-port; using
(port-name ip) instead.
compile.ss, primdata.ss,
7.ms,
system.stex
- compile-port now tries to come up with a file position to supply
to make-read, which it can do if the port's positions are character
positions (presently string ports) or if the port is positioned
at zero.
compile.ss
- audited the argument-type-error fuzz mat exceptions and fixed a
host of problems this turned up (entries follow). added #f as
an invalid argument for every type for which #f is indeed invalid
to catch places where the maybe- prefix was missing on the argument
type. the mat tries hard to determine if the condition raised
(if any) as the result of an invalid argument is appropriate and
redirects the remainder to the mat-output (.mo) file prefixed
with 'Expected error', causing them to show up in the expected
error output so developers will be encouraged to audit them in
the future.
primvars.ms, mat.ss
- added an initial symbol? test on machine type names so we produce
an invalid machine type error message rather than something
confusing like "machine type #f is not supported".
compile.ss
- fixed declarations for many primitives that were specified as
accepting arguments of more general types than they actually
accept, such as number -> real for various numeric operations,
symbol -> endianness for various bytevector operations,
time -> time-utc for time-utc->date, and list -> list-of-string-pairs
for default-library-search-handler. also replaced some of the
sub-xxxx types with specific types such as sub-symbol -> endianness
in utf16->string, but only where they were causing issues with
the primvars argument-type-error fuzz mat. (this should be done
more generally.)
primdata.ss
- fixed incorrect who arguments (was map instead of fold-right,
current-date instead of time-utc->date); switched to using
define-who/set-who! generally.
4.ss, date.ss
- append! now checks all arguments before any mutation
5_2.ss
- with-source-path now properly supplies itself as who for the
string? argument check; callers like load now do their own checks.
7.ss
- added missing integer? check to $fold-bytevector-native-ref whose
lack could have resulted in a compile-time error.
cp0.ss
- fixed typo in output-port-buffer-mode error message
io.ss
- fixed who argument (was fx< rather than fx<?)
library.ss
- fixed declaration of first source-file-descriptor argument (was
sfd, now string)
primdata.ss
- added missing article 'a' in a few error messages
prims.ss
- fixed the copy-environment argument-type error message for the list
of symbols argument.
syntax.ss
- the environment procedure now catches exceptions that occur and
reraises the exception with itself as who if the condition isn't
already a who condition.
syntax.ss
- updated experr and allx patch files for changes to argument-count
fuzz mat and fixes for problems turned up by them.
root-experr*, patch*
- fixed a couple of issues setting port sizes: string and bytevector
output port put handlers don't need room to store the character
or byte, so they now set the size to the buffer length rather
than one less. binary-file-port-clear-output now sets the index
rather than size to zero; setting the size to zero is inappropriate
for some types of ports and could result in loss of buffering and
even suppression of future output. removed a couple of redundant
sets of the size that occur immediately after setting the buffer.
io.ss
- it is now possible to return from a call to with-profile-tracker
multiple times and not double-count (or worse) any counts.
pdhtml.ss, profile.ms
- read-token now requires a file position when it is handed a
source-file descriptor (since the source-file descriptor isn't
otherwise useful), and the source-file descriptor argument can
no longer be #f. the input file position plays the same role as
the input file position in get-datum/annotations. these extra
read-token arguments are now documented.
read.ss,
6.ms,
io.stex
- the source-file descriptor argument to get-datum/annotations can
no longer be #f. it was already documented that way.
read.ss
- read-token and do-read now look for the character-positions port
flag before asking if the port has port-position, since the latter
is slightly more expensive.
read.ss
- rd-error now reports the current port position if it can be determined
when fp isn't already set, i.e., when reading from a port without
character positions (presently any non string port) and fp has not
been passed in explicitly (to read-token or get-datum/annotations).
the port position might not be a character position, but it should be
better than nothing.
read.ss
- added comment noting an invariant for s_profile_release_counters.
prim5.c
- restored accidentally dropped fasl-write formdef and dropped
duplicate fasl-read formdef
io.stex
- added a 'coverage' target that tests the coverage of the Scheme-code
portions of Chez Scheme by the mats.
Makefile.in, Makefile-workarea.in
- added .PHONY declarations for all of the targets in the top-level
and workarea make files, and renamed the create-bintar, create-rpm,
and create-pkg targets bintar, rpm, and pkg.
Makefile.in, Makefile-workarea.in
- added missing --retain-static-relocation command-line argument and
updated the date
scheme.1.in
- removed a few redundant conditional variable settings
configure
- fixed declaration of condition wait (timeout -> maybe-timeout)
primdata.ss
original commit: 88501743001393fa82e89c90da9185fc0086fbcb
InstallPrefix, since it didn't and can't play well with the
generated config.h. Instead removed InstallPrefix entirely so
it isn't an attractive hazzard.
configure, makefiles/Mf-install.in
original commit: 21c8b40bbe4431795824e48042112820872a1fe5
controversial, unless I damaged something in the process of integrating
them with other recent changes. the user's guide and release notes
have been updated as well to reflect the changes of interest to end
users.
- the body of load-library is now wrapped in a $pass-time with
to show the time spent loading libraries separately from the time
spent in expand.
syntax.ss
- interpret now plays the pass-time game
interpret.ss
- added compile-time-value? predicate and
compile-time-value-value accessor
syntax.ss, primdata.ss,
8.ms, primvars.ms, root-experr*
- $pass-stats now returns accurrate stats for the currently timed
pass.
7.ss
- compile-whole-program and compile-whole-library now propagate
recompile info from the named wpo file to the object file
to support maybe-compile-program and maybe-compile-library in
the case where compile-whole-{program,library} overwrites the
original object file.
compile.ss,
7.ms, mat.ss, primvars.ms
- replaced the ancient and unusable bintar with one that creates
a useful tarball for binary installs
bintar
- generated Mf-install InstallBin (InstallLib, InstallMan) now
correctly indirects through InstallPrefix if the --installbin
(--installlib, --installman) configure flag is not present.
src/configure
- removed definition of generate-procedure-source-information
patch.ss
- guardian tconc cells are now allocated in generation 0 in the hope
that they can be released more quickly.
gc.c
- added ftype-guardian syntax: (ftype-guardian A) creates a new
guardian for ftype pointers of type A, the first base field (or
one of the first base fields in the case of unions) of which must
be a word-sized integer with native endianness representing a
reference count. ftype pointers are registered with and retrieved
from the guardian just like objects are registered with and
retrieved from any guardian. the difference is that the garbage
collector decrements the reference count before resurrecting an
ftype pointer and resurrects only those whose reference counts
become zero, i.e., are ready for deallocation.
ftype.ss, cp0.ss, cmacros.ss, cpnanopass.ss, prims.ss, primdata.ss,
gc.c,
4.ms, root-experr*
- fixed a bug in automatic recompilation handling of missing include
files specified with absolute pathnames or pathnames starting with
"./" or "..": was erroring out in file-modification-time with a
file-not-found or other exception rather than recompiling.
syntax.ss,
7.ms, root-experr*, patch*
- changed inline vector-for-each and string-for-each code to
put the last call to the procedure in tail position, as was
already done for the library definitions and for the inline
code for for-each.
cp0.ss,
5_4.ms, 5_6.ms
- the compiler now generates better inline code for the bytevector
procedure. instead of one byte memory write for each argument,
it writes up to 4 (32-bit machines) or 8 (64-bit machines) bytes
at a time, which almost always results in fewer instructions and
fewer writes.
cpnanopass.ss,
bytevector.ms
- packaged unchanging implicit reader arguments into a single record
to reduce the number of arguments.
read.ss
- recoded run-vector to handle zero-length vectors. it appears
we're not presently generating empty vectors (representing empty
groups), but the fasl format permits them.
7.ss
original commit: 7be1d190de7171f74a1ee71e348d3e6310392686
month and year at the time of generation.
csug.stex, copyright.stex
- Updated configuration to set machine types in the CSUG and release notes
make files, and updated distclean target to remove these files.
configure, makefiles/Makefile-csug.in (renamed from csug/Makefile),
makefiles/Makefile-release_notes.in
(renamed from release_notes/Makefile),
makefiles/Makefile
original commit: d4fdb3e0c88c40cceeeeeb52032068408edc7a6e
- Separate 64 and 32 bit MSIs
- Add wix bundle to combine MSIs into single installer
- Use basic wix UI
- Use merge modules to install vcredist package
- Add script to locate vcredist merge modules
- Fix installer status text by adding WixUI_ErrorProgressText ref
Merge modules seems to be the preferred method for installing the
redistributable package, which should decrease the package size and
speed up installation. This commit also addresses a bug where the
installer does not work when VC redistributable is not already
installed.
The 32 and 64 bit components were split into separate MSIs because
Windows Installer only officially supports packages containing a
single architecture. A package bundle is then created containing both
MSIs so only a single file needs to be distributed.
There seemed to be no trivial way to get the path to the vcredist
merge modules bundled with visual studio so I added a script
(locate-vcredist.bat) that handles this. It will need to be updated in
the future for compatibility with newer VS platform toolsets.
Some paths and name were changed, here's a summary:
32-bit install path: C:\Program Files (x86)\Chez Scheme 9.4.1\
64-bit install path: C:\Program Files\Chez Scheme 9.4.1\
installer file name: ChezScheme.exe
installer product name: Chez Scheme 9.4.1 x64
original commit: a8867749df27db41ebbafeb0dc914e5e6680cf9e
- 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
This changes the configure script from unconditionally assigning CPPFLAGS,
CFLAGS, and LDFLAGS to the empty string, to only assigning them to the empty
string if they are unset.
original commit: 5d52b0b10f55d489c2ad2e681361a3b8394a043c
machines with libraries and header files installed in alternate locations on
unix-like operating systems.
configure, workarea, checkin,
c/Mf-base, c/Mf-*
Added support for building from a directory that is not a git checkout in order
to support creating release source packages.
configure
original commit: 41d94b0793997e3b90c10d6d28aaa4e2d43857cc
and configure creates a config.h that sets the default scheme heap
path and scheme-script name based on the actual configuration.
configure, newrelease, workarea, checkin,
c/Mf-base, scheme.c, main.c,
Mf-install.in
- renamed the installed example directory from lib to examples.
Mf-install.in,
scheme.1.in
- added force option to gzip during man page install to prevent gzip from
asking for permission to overwrite existing man page files.
Mf-install.in
- removed ~/lib/csv%v/%m from the default scheme heap path on unix-like
systems. documented inclusion of %x\..\..\boot\%m in the Windows
default scheme heap path.
main.c,
use.stex
- added new configuration options: --installbin, --installlib,
--installschemename, --installpetitename, and --installscriptname.
configure
- updated the example library link to the nanopass framework.
CONTRIBUTING.md
- now cleaning up petite.1 and scheme.1 left behind by make install
Makefile-workarea.in, checkin
- now removing workarea after cleaning csug and release_notes so
Mf-stex (included from csug/Makefile and release_notes/Makefile)
doesn't complain trying to determine the machine type.
Makefile.in
- added installsh support for --ifdiff so the csug make file can use it
for the install target.
installsh,
csug/Makefile
- added instructions for building (cross-compiling) a boot file for
a supported machine type for which a boot file is not built by default.
BUILDING
original commit: df4194c83a9e67d1ec20165fc3e2def4ed8e8986
line from the wpo file (if it has one) to the object file.
compile.ss,
7.ms
- stex is now a submodule. csug/Makefile and release_notes/Makefile
set and use the required Scheme and STEXLIB variables accordingly.
they default the machine type to a6le, but this can be overridden
and is by the generated top-level Makefile. the generated top-level
Makefile now has a new docs target that runs make in both csug and
release_notes, and an updated distclean target that cleans the same.
the annoying csug Makefile .fig.pdf rule redefinition is now gone.
copyright.stex and csug.stex now list May 2016 as the revision month
and date; this will have to be updated for future releases.
configure, makefiles/Makefile.in,
csug/Makefile, copyright.stex, csug.stex,
release_notes/Makefile
- rebuilt the boot files
original commit: 4bd78a692dd4ca2f88af5d404fd0993a2d141e7b
"check summary" message, whether invoked from the top-level directory
or from the workarea.
Makefile.in, Makefile-workarea.in
- configure now just uses cat to copy Makefile-workarea.in to $w/workarea,
since the file is presently the same regardless of the configuration.
configure
original commit: 1d438978dfedef9a47839b3ee302196aa5d8eda1
