Commit Graph

102 Commits

Author SHA1 Message Date
Junio C Hamano
9eeff2f681 config.mak.uname: add hint on uname_R for MacOS X
I always have to scratch my head every time I see this cryptic
pattern "[15678]\."; leave a short note to remind the maintainer
and the reviewers.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-08-15 11:04:59 -07:00
Kyle J. McKay
9c7a0beee0 config.mak.uname: set NO_APPLE_COMMON_CRYPTO on older systems
Older MacOS systems prior to 10.5 do not have the CommonCrypto
support Git uses so set NO_APPLE_COMMON_CRYPTO on those systems.

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-08-15 09:50:18 -07:00
Junio C Hamano
385e171a5b Merge branch 'sk/mingw-uni-fix-more'
Most of these are battle-tested in msysgit and are needed to
complete what has been merged to 'master' already.

* sk/mingw-uni-fix-more:
  Win32: enable color output in Windows cmd.exe
  Win32: patch Windows environment on startup
  Win32: keep the environment sorted
  Win32: use low-level memory allocation during initialization
  Win32: reduce environment array reallocations
  Win32: don't copy the environment twice when spawning child processes
  Win32: factor out environment block creation
  Win32: unify environment function names
  Win32: unify environment case-sensitivity
  Win32: fix environment memory leaks
  Win32: Unicode environment (incoming)
  Win32: Unicode environment (outgoing)
  Revert "Windows: teach getenv to do a case-sensitive search"
  tests: do not pass iso8859-1 encoded parameter
2014-07-30 14:21:09 -07:00
Junio C Hamano
9f2de9c121 Merge branch 'kb/perf-trace'
* kb/perf-trace:
  api-trace.txt: add trace API documentation
  progress: simplify performance measurement by using getnanotime()
  wt-status: simplify performance measurement by using getnanotime()
  git: add performance tracing for git's main() function to debug scripts
  trace: add trace_performance facility to debug performance issues
  trace: add high resolution timer function to debug performance issues
  trace: add 'file:line' to all trace output
  trace: move code around, in preparation to file:line output
  trace: add current timestamp to all trace output
  trace: disable additional trace output for unit tests
  trace: add infrastructure to augment trace output with additional info
  sha1_file: change GIT_TRACE_PACK_ACCESS logging to use trace API
  Documentation/git.txt: improve documentation of 'GIT_TRACE*' variables
  trace: improve trace performance
  trace: remove redundant printf format attribute
  trace: consistently name the format parameter
  trace: move trace declarations from cache.h to new trace.h
2014-07-22 10:59:19 -07:00
Karsten Blees
e96942e821 Win32: fix environment memory leaks
All functions that modify the environment have memory leaks.

Disable gitunsetenv in the Makefile and use env_setenv (via mingw_putenv)
instead (this frees removed environment entries).

Move xstrdup from env_setenv to make_augmented_environ, so that
mingw_putenv no longer copies the environment entries (according to POSIX
[1], "the string [...] shall become part of the environment"). This also
fixes the memory leak in gitsetenv, which expects a POSIX compliant putenv.

[1] http://pubs.opengroup.org/onlinepubs/009695399/functions/putenv.html

Note: This patch depends on taking control of char **environ and having
our own mingw_putenv (both introduced in "Win32: Unicode environment
(incoming)").

Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Stepan Kasal <kasal@ucw.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-21 09:32:49 -07:00
Karsten Blees
148d6771bf trace: add high resolution timer function to debug performance issues
Add a getnanotime() function that returns nanoseconds since 01/01/1970 as
unsigned 64-bit integer (i.e. overflows in july 2554). This is easier to
work with than e.g. struct timeval or struct timespec. Basing the timer on
the epoch allows using the results with other time-related APIs.

To simplify adaption to different platforms, split the implementation into
a common getnanotime() and a platform-specific highres_nanos() function.

The common getnanotime() function handles errors, falling back to
gettimeofday() if highres_nanos() isn't implemented or doesn't work.

getnanotime() is also responsible for normalizing to the epoch. The offset
to the system clock is calculated only once on initialization, i.e.
manually setting the system clock has no impact on the timer (except if
the fallback gettimeofday() is in use). Git processes are typically short
lived, so we don't need to handle clock drift.

The highres_nanos() function returns monotonically increasing nanoseconds
relative to some arbitrary point in time (e.g. system boot), or 0 on
failure. Providing platform-specific implementations should be relatively
easy, e.g. adapting to clock_gettime() as defined by the POSIX realtime
extensions is seven lines of code.

This version includes highres_nanos() implementations for:
 * Linux: using clock_gettime(CLOCK_MONOTONIC)
 * Windows: using QueryPerformanceCounter()

Todo:
 * enable clock_gettime() on more platforms
 * add Mac OSX version, e.g. using mach_absolute_time + mach_timebase_info

Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-13 21:25:20 -07:00
Junio C Hamano
b0bae7f0e4 Merge branch 'sk/mingw-dirent'
* sk/mingw-dirent:
  Win32 dirent: improve dirent implementation
  Win32 dirent: clarify #include directives
  Win32 dirent: change FILENAME_MAX to MAX_PATH
  Win32 dirent: remove unused dirent.d_reclen member
  Win32 dirent: remove unused dirent.d_ino member
2014-07-09 11:34:27 -07:00
Junio C Hamano
a9041df7ab Merge branch 'nd/index-pack-one-fd-per-thread' into maint
We used to disable threaded "git index-pack" on platforms without
thread-safe pread(); use a different workaround for such
platforms to allow threaded "git index-pack".

* nd/index-pack-one-fd-per-thread:
  index-pack: work around thread-unsafe pread()
2014-06-25 11:47:58 -07:00
Karsten Blees
1d94c403fd Win32 dirent: remove unused dirent.d_ino member
There are no proper inodes on Windows, so remove dirent.d_ino and #define
NO_D_INO_IN_DIRENT in the Makefile (this skips e.g. an ineffective qsort in
fsck.c).

Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Stepan Kasal <kasal@ucw.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-09 15:10:52 -07:00
Junio C Hamano
14ce98d7e9 Merge branch 'sk/msvc-dynlink-crt'
* sk/msvc-dynlink-crt:
  MSVC: link dynamically to the CRT
2014-06-03 12:06:46 -07:00
Junio C Hamano
53f52cd92a Merge branch 'nd/index-pack-one-fd-per-thread'
Enable threaded index-pack on platforms without thread-unsafe
pread() emulation.

* nd/index-pack-one-fd-per-thread:
  index-pack: work around thread-unsafe pread()
2014-06-03 12:06:42 -07:00
Junio C Hamano
8eaf517835 Merge branch 'ks/tree-diff-nway'
Instead of running N pair-wise diff-trees when inspecting a
N-parent merge, find the set of paths that were touched by walking
N+1 trees in parallel.  These set of paths can then be turned into
N pair-wise diff-tree results to be processed through rename
detections and such.  And N=2 case nicely degenerates to the usual
2-way diff-tree, which is very nice.

* ks/tree-diff-nway:
  mingw: activate alloca
  combine-diff: speed it up, by using multiparent diff tree-walker directly
  tree-diff: rework diff_tree() to generate diffs for multiparent cases as well
  Portable alloca for Git
  tree-diff: reuse base str(buf) memory on sub-tree recursion
  tree-diff: no need to call "full" diff_tree_sha1 from show_path()
  tree-diff: rework diff_tree interface to be sha1 based
  tree-diff: diff_tree() should now be static
  tree-diff: remove special-case diff-emitting code for empty-tree cases
  tree-diff: simplify tree_entry_pathcmp
  tree-diff: show_path prototype is not needed anymore
  tree-diff: rename compare_tree_entry -> tree_entry_pathcmp
  tree-diff: move all action-taking code out of compare_tree_entry()
  tree-diff: don't assume compare_tree_entry() returns -1,0,1
  tree-diff: consolidate code for emitting diffs and recursion in one place
  tree-diff: show_tree() is not needed
  tree-diff: no need to pass match to skip_uninteresting()
  tree-diff: no need to manually verify that there is no mode change for a path
  combine-diff: move changed-paths scanning logic into its own function
  combine-diff: move show_log_first logic/action out of paths scanning
2014-06-03 12:06:40 -07:00
Karsten Blees
a08e803d76 MSVC: link dynamically to the CRT
Dynamic linking is generally preferred over static linking, and MSVCRT.dll
has been integral part of Windows for a long time.

This also fixes linker warnings for _malloc and _free in zlib.lib, which
seems to be compiled for MSVCRT.dll already.

The DLL version also exports some of the CRT initialization functions,
which are hidden in the static libcmt.lib (e.g. __wgetmainargs, required by
subsequent Unicode patches).

Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Stepan Kasal <kasal@ucw.cz>
Acked-by: Sebastian Schuberth <sschuberth@gmail.com>
Acked-by: Marat Radchenko <marat@slonopotamus.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-06 09:52:12 -07:00
Nguyễn Thái Ngọc Duy
39539495ac index-pack: work around thread-unsafe pread()
Multi-threaing of index-pack was disabled with c0f8654
(index-pack: Disable threading on cygwin - 2012-06-26), because
pread() implementations for Cygwin and MSYS were not thread
safe.  Recent Cygwin does offer usable pread() and we enabled
multi-threading with 103d530f (Cygwin 1.7 has thread-safe pread,
2013-07-19).

Work around this problem on platforms with a thread-unsafe
pread() emulation by opening one file handle per thread; it
would prevent parallel pread() on different file handles from
stepping on each other.

Also remove NO_THREAD_SAFE_PREAD that was introduced in c0f8654
because it's no longer used anywhere.

This workaround is unconditional, even for platforms with
thread-safe pread() because the overhead is small (a couple file
handles more) and not worth fragmenting the code.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Tested-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-16 09:29:41 -07:00
Junio C Hamano
b8a30194db Merge branch 'jk/commit-dates-parsing-fix' into maint
* jk/commit-dates-parsing-fix:
  t4212: loosen far-in-future test for AIX
  date: recognize bogus FreeBSD gmtime output
2014-04-09 11:59:38 -07:00
Kirill Smelkov
22f4c27e68 mingw: activate alloca
Both MSVC and MINGW have alloca(3) definitions in malloc.h, so by moving
win32-compat alloca.h from compat/vcbuild/include/ to compat/win32/ ,
which is included by both MSVC and MINGW CFLAGS, we can make alloca()
work on both those Windows environments.

In MINGW, malloc.h has explicit check for GNUC and if it is so, defines
alloca to __builtin_alloca, so it looks like we don't need to add any
code to here-shipped alloca.h to get optimum performance.

Compile-tested on Windows in MSysGit.

Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Acked-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-09 10:08:35 -07:00
Junio C Hamano
48ae20513d Merge branch 'mr/msvc-link-with-invalidcontinue'
* mr/msvc-link-with-invalidcontinue:
  MSVC: link in invalidcontinue.obj for better POSIX compatibility
2014-04-08 11:59:46 -07:00
Junio C Hamano
bdb830c445 Merge branch 'jk/commit-dates-parsing-fix'
Finishing touches for portability.

* jk/commit-dates-parsing-fix:
  t4212: loosen far-in-future test for AIX
  date: recognize bogus FreeBSD gmtime output
2014-04-08 11:59:06 -07:00
Marat Radchenko
e4eef26d98 MSVC: allow using ExtUtils::MakeMaker
Drop NO_PERL_MAKEMAKER from config.mak.uname for the MSVC platform.

MakeMaker is available on Windows Perl implementations and
installs modules to correct location, unlike NO_PERL_MAKEMAKER Makefile.

Signed-off-by: Marat Radchenko <marat@slonopotamus.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-04 11:57:38 -07:00
Jeff King
6654754779 date: recognize bogus FreeBSD gmtime output
Most gmtime implementations return a NULL value when they
encounter an error (and this behavior is specified by ANSI C
and POSIX).  FreeBSD's implementation, however, will simply
leave the "struct tm" untouched.  Let's also recognize this
and convert it to a NULL (with this patch, t4212 should pass
on FreeBSD).

Reported-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-01 14:39:04 -07:00
Junio C Hamano
8456113de5 Merge branch 'mr/msvc-link-with-lcurl'
* mr/msvc-link-with-lcurl:
  MSVC: allow linking with the cURL library
2014-03-31 16:31:07 -07:00
Marat Radchenko
4b623d80f7 MSVC: link in invalidcontinue.obj for better POSIX compatibility
By default, Windows abort()'s instead of setting
errno=EINVAL when invalid arguments are passed to standard functions.

For example, when PAGER quits and git detects it with
errno=EPIPE on write(), check_pipe() in write_or_die.c tries raise(SIGPIPE)
but since there is no SIGPIPE on Windows, it is treated as invalid argument,
causing abort() and crash report window.

Linking in invalidcontinue.obj (provided along with MS compiler) allows
raise(SIGPIPE) to return with errno=EINVAL.

Signed-off-by: Marat Radchenko <marat@slonopotamus.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-28 13:37:16 -07:00
Marat Radchenko
da8daa367b MSVC: allow linking with the cURL library
Teach the clink.pl script that -lcurl is a request to link with the
cURL library, and drop NO_CURL from config.mak.uname for the MSVC
platform.

Signed-off-by: Marat Radchenko <marat@slonopotamus.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-27 12:05:14 -07:00
Kirill Smelkov
61f76a3612 Portable alloca for Git
In the next patch we'll have to use alloca() for performance reasons,
but since alloca is non-standardized and is not portable, let's have a
trick with compatibility wrappers:

1. at configure time, determine, do we have working alloca() through
   alloca.h, and define

    #define HAVE_ALLOCA_H

   if yes.

2. in code

    #ifdef HAVE_ALLOCA_H
    # include <alloca.h>
    # define xalloca(size)      (alloca(size))
    # define xalloca_free(p)    do {} while(0)
    #else
    # define xalloca(size)      (xmalloc(size))
    # define xalloca_free(p)    (free(p))
    #endif

   and use it like

   func() {
       p = xalloca(size);
       ...

       xalloca_free(p);
   }

This way, for systems, where alloca is available, we'll have optimal
on-stack allocations with fast executions. On the other hand, on
systems, where alloca is not available, this gracefully fallbacks to
xmalloc/free.

Both autoconf and config.mak.uname configurations were updated. For
autoconf, we are not bothering considering cases, when no alloca.h is
available, but alloca() works some other way - its simply alloca.h is
available and works or not, everything else is deep legacy.

For config.mak.uname, I've tried to make my almost-sure guess for where
alloca() is available, but since I only have access to Linux it is the
only change I can be sure about myself, with relevant to other changed
systems people Cc'ed.

NOTE

SunOS and Windows had explicit -DHAVE_ALLOCA_H in their configurations.
I've changed that to now-common HAVE_ALLOCA_H=YesPlease which should be
correct.

Cc: Brandon Casey <drafnel@gmail.com>
Cc: Marius Storm-Olsen <mstormo@gmail.com>
Cc: Johannes Sixt <j6t@kdbg.org>
Cc: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Cc: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Cc: Gerrit Pape <pape@smarden.org>
Cc: Petr Salinger <Petr.Salinger@seznam.cz>
Cc: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Thomas Schwinge <thomas@codesourcery.com> (GNU Hurd changes)
Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-27 11:54:01 -07:00
Nguyễn Thái Ngọc Duy
70a8fc999d stop using fnmatch (either native or compat)
Since v1.8.4 (about six months ago) wildmatch is used as default
replacement for fnmatch. We have seen only one fix since so wildmatch
probably has done a good job as fnmatch replacement. This concludes
the fnmatch->wildmatch transition by no longer relying on fnmatch.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-20 14:16:11 -08:00
Benny Siegert
92164af978 Add MirBSD support to the build system.
Add an entry into the table of supported OSes. Do not set _XOPEN_SOURCE
(contrary to OpenBSD) because that disables the u_short and u_long
typedefs, which are used unconditionally in various other header files.

Signed-off-by: Benny Siegert <bsiegert@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-02 10:19:14 -08:00
Sebastian Schuberth
fa93bb20d7 MinGW: Fix stat definitions to work with MinGW runtime version 4.0
For an overview of changes in mingwrt-4.0 see:

    http://sourceforge.net/p/mingw/mingw-org-wsl/ci/4.0.0/tree/NEWS

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-11 11:11:06 -07:00
Karsten Blees
bad866a29b MSVC: fix compile errors due to missing libintl.h
Set NO_GETTEXT in config.mak.uname to get rid of libintl.h dependency.

Signed-off-by: Karsten Blees <blees@dcon.de>
Acked-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-11 11:08:52 -07:00
Steffen Prohaska
a487916dd5 Revert "compat/clipped-write.c: large write(2) fails on Mac OS X/XNU"
This reverts commit 6c642a8786.

The previous commit introduced a size limit on IO chunks on all
platforms.  The compat clipped_write() is not needed anymore.

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-20 11:11:08 -07:00
Junio C Hamano
d6cbf2fa7a Merge branch 'rj/cygwin-clarify-use-of-cheating-lstat'
Cygwin port added a "not quite correct but a lot faster and good
enough for many lstat() calls that are only used to see if the
working tree entity matches the index entry" lstat() emulation some
time ago, and it started biting us in places.  This removes it and
uses the standard lstat() that comes with Cygwin.

Recent topic that uses lstat on packed-refs file is broken when
this cheating lstat is used, and this is a simplest fix that is
also the cleanest direction to go in the long run.

* rj/cygwin-clarify-use-of-cheating-lstat:
  cygwin: Remove the Win32 l/stat() implementation
2013-08-02 11:01:01 -07:00
Mark Levedahl
c28facd216 cygwin: stop forcing core.filemode=false
We force core.filemode=false since c869753e (Force core.filemode to
false on Cygwin., 2006-12-30), even when the repository is on a
filesystem on which Cygwin can give us trustable filemodes, because
many native Windows applications the users use to edit files in the
working tree tend to (re)create files with executable bit randomly
set or reset.  However, binary distribution of Git that is supplied
by the downstream project to its users has been built without this
consideration.

Drop NO_TRUSTABLE_FILEMODE from our default configuration so that
hand-compiled Git out of box will match theirs.

Signed-off-by: Mark Levedahl <mlevedahl@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-21 22:03:31 -07:00
Mark Levedahl
f593ef7779 Cygwin 1.7 supports mmap
git has shipped for years with MMAP enabled in the stock distribution,
there are no reports of problems / failures on the list relating to
this. Leave the default as-is on v1.5 due to lack of knowlege of this
working on earlier Cygwin.

Signed-off-by: Mark Levedahl <mlevedahl@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-21 22:03:09 -07:00
Mark Levedahl
103d530f77 Cygwin 1.7 has thread-safe pread
Per http://cygwin.com/ml/cygwin/2012-07/msg00331.html , cygwin 1.7
was modified to explicitly support git's use of pread, so make this
the default. Do not affect earlier cygwin versions.

Signed-off-by: Mark Levedahl <mlevedahl@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-21 22:03:09 -07:00
Mark Levedahl
92f63d2b05 Cygwin 1.7 needs compat/regex
Cygwin v1.7 uses the regex library from newlib which does not pass git's
tests, so don't use it. This fixes failures in t4018 and t4034.

Continue to use the platform supplied regex library for earlier versions.

Signed-off-by: Mark Levedahl <mlevedahl@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-21 22:03:09 -07:00
Ramsay Jones
f66450ae94 cygwin: Remove the Win32 l/stat() implementation
Commit adbc0b6b ("cygwin: Use native Win32 API for stat", 30-09-2008)
added a Win32 specific implementation of the stat functions. In order
to handle absolute paths, cygwin mount points and symbolic links, this
implementation may fall back on the standard cygwin l/stat() functions.
Also, the choice of cygwin or Win32 functions is made lazily (by the
first call(s) to l/stat) based on the state of some config variables.

Unfortunately, this "schizophrenic stat" implementation has been the
source of many problems ever since. For example, see commits 7faee6b8,
79748439, 452993c2, 085479e7, b8a97333, 924aaf3e, 05bab3ea and 0117c2f0.

In order to avoid further problems, such as the issue raised by the new
reference handling API, remove the Win32 l/stat() implementation.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-18 10:44:17 -07:00
Junio C Hamano
e936318aa6 Merge branch 'rj/mingw-cygwin'
Update build for Cygwin 1.[57].  Torsten Bögershausen reports that
this is fine with Cygwin 1.7 ($gmane/225824) so let's try moving it
ahead.

* rj/mingw-cygwin:
  cygwin: Remove the CYGWIN_V15_WIN32API build variable
  mingw: rename WIN32 cpp macro to GIT_WINDOWS_NATIVE
2013-06-11 13:30:20 -07:00
Pat Thoyts
65db044371 Set the default help format to html for msys builds.
This resolves issue #19 by setting the compiled default to html in msys
builds following the changes introduced by commit
1cc8af0 "help: use HTML as the default help format on Windows"

Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
2013-06-04 10:12:32 +01:00
Pat Thoyts
ce39c2e04c Provide a Windows version resource for the git executables.
Embeds the git version and description into the git executable thus
implementing the request in issue #5.

Acked-by: Heiko Voigt <hvoigt@hvoigt.net>
Acked-by: Sebastian Schuberth <sschuberth@gmail.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
2013-06-04 10:11:08 +01:00
Pierre le Riche
fb99070303 msysgit: Add the --large-address-aware linker directive to the makefile.
This has the effect of increasing the address space from 2GB to 4GB under
64-bit Windows, reducing the likelihood of an "out of memory" error when
e.g.  repacking a large repository.  The test suite passes with this
patch, with and without the MEM_TOP_DOWN flag added to all VirtualAlloc
calls.  While this is no guarantee that there are no issues with large
memory support (it could break Git on other setups than mine, for
example), it at least increases the chance that nothing obvious goes wrong
(such as errors introduced by faulty sign extension, say, with ssize_t).

[PT: Resolves github issue #12]

Signed-off-by: Pierre le Riche <github@pleasedontspam.me>
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
2013-06-04 10:02:41 +01:00
Johannes Schindelin
ca35487192 Define NO_GETTEXT for Git for Windows
The dreaded "your vnsprintf is broken (returned -1)" error is back. At
least with the libintl version we have. So for the moment, just work
around the issue by _not_ using gettext.

Ah, I wish that my attempt at implementing a custom strbuf_vaddf() would
not have been brushed aside so rashly. Oh well. Time saved on maintaining
that thing, I guess (although more time went into working around coping
with existing implementations).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2013-06-04 10:02:27 +01:00
Sebastian Schuberth
0a2623269f Makefile: Do not use OLD_ICONV on MINGW anymore
We are building libiconv now the same way as upstream MinGW does, so we do
not need OLD_ICONV anymore when compiling Git either in msysGit or
mingwGitDevEnv.

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
2013-06-04 10:01:34 +01:00
Junio C Hamano
29d5350c01 Merge branch 'fc/macos-x-clipped-write'
Mac OS X does not like to write(2) more than INT_MAX number of
bytes.

* fc/macos-x-clipped-write:
  compate/clipped-write.c: large write(2) fails on Mac OS X/XNU
2013-06-02 15:54:54 -07:00
Filipe Cabecinhas
6c642a8786 compate/clipped-write.c: large write(2) fails on Mac OS X/XNU
Due to a bug in the Darwin kernel, write(2) calls have a maximum size
of INT_MAX bytes.

Introduce a new compat function, clipped_write(), that only writes
at most INT_MAX bytes and returns the number of bytes written, as
a substitute for write(2), and allow platforms that need this to
enable it from the build mechanism with NEEDS_CLIPPED_WRITE.

Set it for Mac OS X by default.  It may be necessary to include this
function on Windows, too.

Signed-off-by: Filipe Cabecinhas <filcab+git@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-17 12:16:30 -07:00
Ramsay Jones
83ff1da3e8 cygwin: Remove the CYGWIN_V15_WIN32API build variable
Commit 380a4d92 ("Update cygwin.c for new mingw-64 win32 api headers",
11-11-2012) solved an header include order problem on cygwin 1.7 when
using the new mingw-64 WIN32 API headers. The solution involved using
a new build variable (V15_MINGW_HEADERS) to conditionally compile the
cygwin.c source file to use an include order appropriate for the old
and new header files. (The build variable was later renamed in commit
9fca6cff to CYGWIN_V15_WIN32API).

The include order used for cygwin 1.7 includes the "win32.h" header
before "../git-compat-util.h". This order was problematic on cygwin
1.5, since it lead to the WIN32 symbol being defined along with the
inclusion of some WIN32 API headers (e.g. <winsock2.h>) which cause
compilation errors.

The header include order problem on cygwin 1.5 has since been fixed
(see commit "mingw: rename WIN32 cpp macro to GIT_WINDOWS_NATIVE"),
so we can now remove the conditional compilation along with the
associated CYGWIN_V15_WIN32API build variable.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-08 12:15:44 -07:00
Jonathan Nieder
95f31e9ab5 convert: The native line-ending is \r\n on MinGW
If you try this:

 1. Install Git for Windows (from the msysgit project)

 2. Put

	[core]
		autocrlf = false
		eol = native

    in your .gitconfig.

 3. Clone a project with

	*.txt text

    in its .gitattributes.

Then with current git, any text files checked out have LF line
endings, instead of the expected CRLF.

Cc: Johannes Schindelin <johannes.schindelin@gmx.de>
Cc: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-16 11:18:35 -07:00
Junio C Hamano
9b79956018 Merge branch 'rj/msvc-build'
* rj/msvc-build:
  msvc: avoid collisions between "tags" and "TAGS"
  msvc: test-svn-fe: Fix linker "unresolved external" error
  msvc: Fix build by adding missing symbol defines
  msvc: git-daemon: Fix linker "unresolved external" errors
  msvc: Fix compilation errors caused by poll.h emulation
2013-03-19 12:20:40 -07:00
Erik Faye-Lund
13a2319919 Revert "compat: add strtok_r()"
This reverts commit 78457bc0cc.

commit 28c5d9e ("vcs-svn: drop string_pool") previously removed
the only call-site for strtok_r. So let's get rid of the compat
implementation as well.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-26 09:16:58 -08:00
Ramsay Jones
e0492c5be1 msvc: avoid collisions between "tags" and "TAGS"
Commit 2f769195 ("MinGW: avoid collisions between "tags" and "TAGS",
28-09-2010) enabled MinGW to use an ETAGS file in order to avoid
filename collisions on (Windows) case insensitive filesystems. In
addition, this prevents 'make' from issuing several warning messages.

When using the Makefile to perform an MSVC build, which is usually
executed using MinGW tools, we can also benefit from this capability.
In order to reap the above benefits, we set the ETAGS_TARGET build
variable to ETAGS in the MSVC config block.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Tested-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-25 12:40:51 -08:00
Ramsay Jones
d0f9dbb9e2 msvc: test-svn-fe: Fix linker "unresolved external" error
In particular, while linking test-svn-fe.exe, the linker complains
that the external symbol _strtoull is unresolved. A call to this
function was added in commit ddcc8c5b ("vcs-svn: skeleton of an svn
delta parser", 25-12-2010).

The NO_STRTOULL build variable attempts to provide support to old
systems which can't even declare 'unsigned long long' variables,
let alone provide the strtoll() or strtoull() functions. Setting
this build variable does not provide an implementation of these
functions. Rather, it simply allows the compat implementations
of strto{i,u}max() to use strtol() and strtoul() instead.

In order to fix the linker error on systems with NO_STRTOULL set,
currently MSVC and OSF1, we can substitute a call to strtoumax().

However, we can easily provide support for the strtoull() and
strtoll() functions on MSVC, since they are essentially already
available as _strtoui64() and _strtoi64(). This allows us to
remove NO_STRTOULL for MSVC.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Tested-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-25 12:40:34 -08:00
Ramsay Jones
4ab7527458 msvc: git-daemon: Fix linker "unresolved external" errors
In particular, while linking git-daemon.exe, the linker complains
that the external symbols _inet_pton and _inet_ntop are unresolved.
Commit a666b472 ("daemon: opt-out on features that require posix",
04-11-2010) addressed this problem for MinGW by configuring the
use of the internal 'compat' versions of these function.

Although the MSVC header <WS2tcpip.h> contains the prototypes for
the inet_pton and inet_ntop functions, they are only visible for
Windows API versions from 0x0600 (Windows Vista) or later. (In
addition, on Windows XP, ws2_32.dll does not export these symbols).

In order to fix the linker errors, we also configure the MSVC build
to use the internal compat versions of these functions by setting
the NO_INET_{PTON,NTOP} build variables.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Tested-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-25 12:39:59 -08:00
Matt Kraai
081fd8d093 Allow building with xmlparse.h
expat 1.1 and 1.2 provide xmlparse.h instead of expat.h.  Include the
former on systems that define the EXPAT_NEEDS_XMLPARSE_H variable and
define that variable on QNX systems, which ship with expat 1.1.

Signed-off-by: Matt Kraai <matt.kraai@amo.abbott.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-11 14:33:04 -08:00
Jeff King
e1b6dbb554 Makefile: hoist uname autodetection to config.mak.uname
Our Makefile first sets up some sane per-platform defaults
by looking at "uname", then modifies that according to the
results of autoconf (if any), then modifies that according
to the user's wishes in config.mak.

For sub-Makefiles like Documentation/Makefile, the latter
two are available, but the uname defaults are available only
to the main Makefile. This hasn't been a problem so far,
because the sub-Makefiles do not rely on any of those
automatic settings to do their work.

This patch puts the uname magic into its own file so it can
be reused in other Makefiles, opening up the possibility of
new knobs.

Note that we leave one reference to uname in the top-level
Makefile: if we are on Darwin, we must check the NO_FINK and
NO_DARWIN_PORTS settings. But because we are combining uname
settings with user-options, we must do so after all of the
config is loaded. This is acceptable, as the resulting
conditionals are about setting variables specific to the
top-level Makefile (and if that ever changes, we can hoist
them into a separate post-config include, too).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-03 14:15:17 -08:00