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similarly to read_archive.
Note we no longer bother seeking back to the start of the header, as only
ArchTouch accesses that header, and can do the seek itself.
With this, arch handling should be working, more or less.
thanks to Todd, Miod, Naddy for reviewing those patches.
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Hence, read_archive must be very careful to parse stuff correctly: don't
use str* when mem* are appropriate, copy numeric fields and ensure they're
terminated...
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and put it into a specific structure (it is wasteful to keep lugging
SVR4 structures once an archive is parsed).
By tweaking read_archive slightly, we can achieve a nicer interface
to ArchSVR4Entry.
Note a bug in make: ArchFindMember does (currently) not use the SVR4 code,
hence some archive members won't be found in non-caching mode...
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Its main failing is that ar headers are NOT null terminated.
This code is atrocious. This change starts cleaning that up.
Replace the list of cached archives with a hash,
streamline the logic of ArchMTimeMember,
by taking out the actual function that does the reading (read_archive).
More fixes to come.
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Define two possible interfaces: the classic one,
and the new one (used where available) that depends on timespec.
Better granularity, make is now able to distinguish between files that
were built during the same second.
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Slight optimizations: instead of storing archive members, just keep
the modification time, as we don't care for the rest of the archive
information. Lazily compute mtime, stash ascii date instead, and convert
to mtime when needed (storing an out_of_date value to mark the unconverted
values).
Archive handling is atrocious and need some clean-up.
Thanks to miod@ who took the time to review those patches.
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Replace the time stamp hash in dir.c with an open hashing structure.
In doing so, remove some nasty casts, simplify code a bit:
Dir_MTime can return a modification time, since make does not make
a distinction between out-of-date and non-existent files.
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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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- 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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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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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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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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- let *_MTime return booleans, as that's what they're used for, the time_t
is set as a side effect.
- use OUT_OF_DATE for a date starting point, set it at the origin of time.
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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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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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Support SVR4 style archives.
Fix pr/1421 (from Matthew Green) and pr/1997 (from Jeff Thieleke).
In ParseDoInclude(), make a temporary copy of the current file name
while searching for ""-type include files, since the current file name
might not be a writeable string.
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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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