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rescinded 22 July 1999. Proofed by myself and Theo.
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implicit (suffix) rules. Then, only expand the IMPSRC/< variable
if the node has been marked.
This matches what Single Unix 2 and common sense say: implicit rules
shouldn't count when an explicit rule has been found (an explicit rule
being a full-scale dependency, with some associated commands)
Note that Single Unix leaves the `PREFIX' question open, so we leave
the PREFIX code as it is.
This fixes regression case mk14, which now fails as it should.
This is just a bug-fix. Some more correct (and faster) code should
probably be substituted. Namely, right now, the suffix code is too
greedy, whereas it should test for explicit rules earlier, and not
even bother instantiating implicit rules from templates when they
duplicate actual existing rules.
ok millert@
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initialize create in main.c.
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pointers is simpler than calling a function.
Recognize purely static lst headers, which don't really need any
initialization.
ok miod@
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Removes remaining lint stuff from lst.lib.
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- cut up those huge include files into separate interfaces for all modules.
Put the interface documentation there, and not with the implementation.
- light-weight includes for needed concrete types (lst_t.h, timestamp_t.h).
- cut out some more logically separate parts: cmd_exec, varname, parsevar,
timestamp.
- put all error handling functions together, so that we will be able to
clean them up.
- more systematic naming: functioni to handle interval, function to handle
string.
- put the init/end code apart to minimize coupling.
- kill weird types like ReturnStatus and Boolean. Use standard bool (with a
fallback for non-iso systems)
- better interface documentation for lots of subsystems.
As a result, make compilation goes somewhat faster (5%, even considering
the largish BSD copyrights to read). The corresponding preprocessed
source goes down from 1,5M to 1M.
A few minor code changes as well: Parse_DoVar is no longer destructive.
Parse_IsVar functionality is folded into Parse_DoVar (as it knows what an
assignment is), a few more interval handling functions. Avoid calling
XXX_End when they do nothing, just #define XXX_End to nothing.
Parse_DoVar is slightly more general: it will handle compound assignments
as long as they make sense, e.g., VAR +!= cmd
will work. As a side effect, VAR++=value now triggers an error
(two + in assignment).
- this stuff doesn't occur in portable Makefiles.
- writing VAR++ = value or VAR+ +=value disambiguates it.
- this is a good thing, it uncovered a bug in bsd.port.mk.
Tested by naddy@. Okayed millert@. I'll handle the fallback if there is
any. This went through a full make build anyways, including isakmpd
(without mickey's custom binutils, as he didn't see fit to share it with me).
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Numerous changes:
- generate can build several tables
- style cleanup
- statistics code
- use variable names throughout (struct Name)
- recursive variables everywhere
- faster parser (pass buffer along instead of allocating multiple copies)
- correct parser. Handles comments everywhere, and ; correctly
- more string intervals
- simplified dir.c, less recursion.
- extended for loops
- sinclude()
- finished removing extra junk from Lst_*
- handles ${@D} and friends in a simpler way
- cleaned up and modular VarModifiers handling.
- recognizes some gnu Makefile usages and errors out about them.
Additionally, some extra functionality is defined by FEATURES. The set of
functionalities is currently hardcoded to OpenBSD defaults, but this may
include support for some NetBSD extensions, like ODE modifiers.
Backed by miod@ and millert@, who finally got sick of my endless patches...
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* Buf_Destroy can be a macro
* X_ instead of _X for struct names, to avoid infringing on the system's
namespace.
* better wildcard detection heuristics
* fix #ifdef CLEANUP code
* a few comments
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us. Need to cache the `next' pointer instead.
Do this manually, as adding a new function for one place in make where it's
needed is a bit icky, especially since suff.c's code might get cleaned up
at some point.
Bug reported by Niels.
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open hashing.
An interesting optimization is that the open hashing interface is more
fine-grained, hence we can compute the correct hash value at the start
of Dir_FindFile, and reuse it for each hash structure into which we look
(the effect is measurable on large directories along with objdir/VPATH).
Remove a few unnecessary Lst_Open/Lst_Close that serve no purpose except
obfuscating the code.
The interface to dir.h changes slightly, hence tedious includes changes...
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Scrap the list of all targets: it only slows make down.
The only visible difference is that the list of all targets is not
shown in order when debugging.
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- UNUSED macro that expands to __attribute__((unused)) for gcc
- move rcsid around so that they can be tagged UNUSED.
- activate -Wunused.
- use UNUSED instead of kludgy junk for function arguments.
- add extern to all extern prototypes.
- update comments in lst.h.
- clean up var.c a little bit, constifying arguments, updating comments...
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In particular, Dir_MakeFlags is abusing str_concat, and works much better
with buffers.
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since lookup will start with VAR_CMD in any case.
This fixes VarFind and Var_Parse to handle ctxt == NULL correctly, and
replace those confusing VAR_CMD with proper NULL pointers.
This patch also handles three small details:
- .CURDIR is necessarily set in VAR_GLOBAL,
- suffix handling for archives copies two hard-coded variables, for
which it can use a quick path,
- typos in TargFreeGN.
Reviewed millert@, miod@.
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the GNode's context directly. We rename that special Lst to `SymTable *'
in prevision of things to come.
Along the line, we lose the special GNodes affected to VAR_CMD, VAR_GLOBAL,
VAR_ENV, which become simple Lsts... This is not a problem, except when
getting to a context's name for debugging (handled very nicely by
offsetof).
Again, this is a preparatory patch, which does not gain anything except
for cleaning up issues...
Reviewed by millert@ and miod@, like the previous patch
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This patch may seem a bit non-sensical at first. It simply introduces some
new interface. Specifically, recognizes that some variable names
(.TARGET/$@, .OODATE/$?, .ALLSRC/$>, .IMPSRC/$<, .PREFIX/$*, .ARCHIVE/$!,
.MEMBER/$%) are `special' (the actual variables which are local to a
target, e.g. GNode).
Currently, The Varq functions (for Varquick access) are only stubs to the
normal functions.
This fixes a very important detail before proceeding to turn variable lists
into hash tables: if every GNode holds a hash table, initialization times
for those will be very costly. But generic GNodes only hold those seven
special variables... which can be stored directly into a small array;
the only general cases are the environment, the command line and
global variables.
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- audit code for Lst_Datum, it's never applied to an empty pointer,
so check can be removed -> turn into a macro,
- Lst_First, Lst_Last can become macro as well
- specialized version of Lst_Succ (Lst_Adv) to use in loops where it cannot
fail,
- Lst_Open can no longer fail. Trim down corresponding code.
Reviewed millert@, miod@
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- replaces Lst_Duplicate with Lst_Clone, which does not allocate storage
- split Lst_Concat into Lst_Concat/Lst_ConcatDestroy
Thus, all the LstValid checks are gone, since we always invoke list
functions with valid pointers.
Note that dynamic list allocation accounted for roughly 20% of all calls
to malloc. The extraneous calls to malloc left are now mostly in parse.c,
which makes some wasteful usage of temporary buffers.
With those few patches, the code is sturdier, and easier to maintain.
Reviewed by millert@
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Lst_Init (constructor) and Lst_New (allocation + construction)
Lst_Destroy (destructor) and Lst_Delete (deallocation + destruction),
and uses that to turn most dynamic allocation of lists (Lst pointers)
into static structures (LIST).
Most of this is mundane, except for allGNs in targ.c, where the code must
be checked to verify that Targ_Init is called soon enough.
Lst_New is a temporary addition. All lists will soon be static.
Reviewed by millert@, like the previous patch.
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In fact, it can become a macro based on Lst_ForEachFrom.
This also introduces Lst_Every, as a shortcut for the very common case where
Lst_ForEach does not need any user data.
Finally, make consistent use of a few function typedefs, instead of having
explicit void (*)(Lst) arguments all over the place.
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sense is reversed (Lst_Find returns when proc says 0, whereas Lst_ForEach
goes on while proc says 0).
This patch turns a number of Lst_ForEach into Lst_Find.
Specifically, all Lst_ForEach that actually may return quickly as proc
does not always returns zero.
Of course, the corresponding proc need to be tweaked to swap 0 and 1...
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They serve no purpose, except hiding potential bugs.
In particular, remove (ClientData) cast from macro, showing potentially
troublesome use of Hashes to store time_t.
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- suffixes can't be removed from suffList except when an explicit reset
is seen, e.g.,
.SUFFIXES:
This actually occurs seldom enough that the very small memory gain does
not justify the extra code and added complexity.
(Removing suffixes at other times, as the old code used to do, is a bug)
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*If* refcounting is to be useful, the actual erasure of suffixes data
should occur when stuff is moved from the suffList to the cleanList, and
it's not at all clear whether all the extra baggage is actually any use.
How many suffixes are we talking about anyway ?
This lets gnupg build correctly without gnu-make.
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for reminding me.
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Lst_AtEnd, Lst_Concat, Lst_Remove, Lst_Replace.
Don't bother returning one.
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Get rid of them.
Get rid of list.h, nothing uses it anyway.
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split the function specific to for.c out, and give them more sensible
arguments at the same time.
This makes .for loop handling more efficient, as we have some heuristic
to evaluate the size of the buffer needed...
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make spends time freeing data structures right before exiting.
So don't bother.
Keep the code inside #ifdef, so that it's still there if someone
ever wants to use make code inside a library.
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- don't interfere with MACHINE/MACHINE_ARCH defines for bootstrap
- type clean-up, time_t, and printing `unknown' ints
- fix TARGET/MEMBER bug in archive rules
- memmove...
- cleaner Error handler.
- reentrant brk_string
- .MAKE env variable
- preliminary scaffolding for .NOPATH
Other improvements:
- efree
- shellneed streamlined
- display Stop in .CURDIR after an error.
- document most features and misfeatures.
- add a few OpenBSD notes to the tutorial.
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deleting a suffix that has 0 source references causes core-dump.
Fix: when an unused suffix gets removed, delete it from the suffix list.
There is still, however a duplicate free(), which I work around by passing
the Suffix back as a return value to SuffRemove() (it gets set to NULL
when the suffix is freed). This is probably not the best way to fix this.
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and tried to do a suffix conversion, following a NULL pointer in the
proccess. Also add some sanity checks so we don't blindly assume
strchr returns non-NULL.
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- Merge in FreeBSD and Lite2 changes.
- Fix bug where a non-archive target with a .a suffix would always
be considered to be out of date, since it does not have a TOC.
- Fix NetBSD PR #2930: declare missing variable.
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(christos)
Fix bug reported by Greg Hudson where leaf (source only) nodes were
referenced only by their basename and not by their full pathname. This
breaks when .PATH or MAKEOBJDIR are used. There might be Makefiles
around that try to work around this bug by prepending ${.CURDIR} to
the sources, and they should be found and fixed. Also a lot of the gunk
in suff.c that was attempting to work around the same problem could be
removed.
(christos)
- Move -D flags from Makefile to config.h and explain what they do. Add
-Wall -Wno-unused to CFLAGS. Add new define SYSVVARSUB to enable SysV
style variable substitutions and enable them.
- Add SunOS style command substitutions via SUNSHCMD
- Fix core dump with '{variable = value'
(christos)
Fix bug where make will always exit with 0, even when one or more
parallel jobs failed. (Only affects parallel make code)
(christos)
Protect __P from being multiply defined (for systems that already
define it)
(christos) Add strdup() since ultrix is missing it.
From Larry Schwimmer <rosebud@cyclone.Stanford.EDU>
(christos) Add estrdup(), a checked version of strdup and use it.
(christos) Recognize SVR4 style long filename entries in archives.
(thorpej) Tidy up some RCS ids a bit.
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Minor:
- ${.PREFIX} should never contain a full pathname
- Fixed gcc -Wall warnings
Major:
- compatMake is now FALSE. This means that we are now running in
full pmake mode:
* rules on dependency lines can be executed in parallel and or
out of sequence:
foo: bar baz
can fire the rule for baz before the rule for bar is fired.
To enforce bar to be fired before baz, another rule needs to be
added. [bar: baz]
* adjacent shell commands in a target are now executed by a single
invocation of the shell, not one invocation of the shell per line
(compatMake can be turned off using the -B flag)
- The -j flag now works... I.e. make -j 4 will fork up to four jobs in
parallel when it can. The target name is printed before each burst
of output caused by the target execution as '--- target ---', when j > 1
- I have changed all the Makefiles so that they work with make -j N, and
I have tested the whole netbsd by:
'make -j 4 cleandir; make -j 4 depend; make -j 4; make -j 4 install'
- I have not compiled or tested this version of make with -DREMOTE.
- Turn compat mode on by default. It gets turned off when the -j without
the -B flag is specified. [Thus you can use -j 1 to turn it off].
- Fix malloc -> emalloc as Gordon noted.
Updates for POSIX/SVR4 compiling:
arch.c: Don't require ranlib stuff. Not everybody has it.
dir.c: SunOS-4 != Solaris; change #ifdef sun to #if sun && !__svr4__
job.c, compat.c: Don't use 'union wait', use int and the W*() macros.
main.c: Check for uname() == -1; some unames return > 0...
util.c, job.c: Add signal() with BSD semantics for svr4, don't use bsd
sigmask and friends.
from cgd@netbsd:
pull in make.h. (PAlloc() now uses emalloc(), which is prototyped in
make.h. If the prototype is not in scope on the Alpha, I see lots
of "cast to pointer from integer of different size" warnings.)
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