Commit graph

378 commits

Author SHA1 Message Date
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 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
Junio C Hamano 650c90a185 Merge branch 'nd/no-more-fnmatch'
We started using wildmatch() in place of fnmatch(3); complete the
process and stop using fnmatch(3).

* nd/no-more-fnmatch:
  actually remove compat fnmatch source code
  stop using fnmatch (either native or compat)
  Revert "test-wildmatch: add "perf" command to compare wildmatch and fnmatch"
  use wildmatch() directly without fnmatch() wrapper
2014-03-14 14:25:31 -07:00
Junio C Hamano 0f9e62e084 Merge branch 'jk/pack-bitmap'
Borrow the bitmap index into packfiles from JGit to speed up
enumeration of objects involved in a commit range without having to
fully traverse the history.

* jk/pack-bitmap: (26 commits)
  ewah: unconditionally ntohll ewah data
  ewah: support platforms that require aligned reads
  read-cache: use get_be32 instead of hand-rolled ntoh_l
  block-sha1: factor out get_be and put_be wrappers
  do not discard revindex when re-preparing packfiles
  pack-bitmap: implement optional name_hash cache
  t/perf: add tests for pack bitmaps
  t: add basic bitmap functionality tests
  count-objects: recognize .bitmap in garbage-checking
  repack: consider bitmaps when performing repacks
  repack: handle optional files created by pack-objects
  repack: turn exts array into array-of-struct
  repack: stop using magic number for ARRAY_SIZE(exts)
  pack-objects: implement bitmap writing
  rev-list: add bitmap mode to speed up object lists
  pack-objects: use bitmaps when packing objects
  pack-objects: split add_object_entry
  pack-bitmap: add support for bitmap indexes
  documentation: add documentation for the bitmap format
  ewah: compressed bitmap implementation
  ...
2014-02-27 14:01:48 -08:00
Nguyễn Thái Ngọc Duy 2c0a1bd616 actually remove compat fnmatch source code
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-20 14:16:25 -08:00
Junio C Hamano 7b4e2b7e6a Merge branch 'ef/mingw-write'
* ef/mingw-write:
  mingw: remove mingw_write
  prefer xwrite instead of write
2014-01-27 10:44:59 -08:00
Jeff King c3d8da571f read-cache: use get_be32 instead of hand-rolled ntoh_l
Commit d60c49c (read-cache.c: allow unaligned mapping of the
index file, 2012-04-03) introduced helpers to access
unaligned data. However, we already have get_be32, which has
a few advantages:

  1. It's already written, so we avoid duplication.

  2. It's probably faster, since it does the endian
     conversion and the alignment fix at the same time.

  3. The get_be32 code is well-tested, having been in
     block-sha1 for a long time. By contrast, our custom
     helpers were probably almost never used, since the user
     needed to manually define a macro to enable them.

We have to add a get_be16 implementation to the existing
get_be32, but that is very simple to do.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-23 14:03:48 -08:00
Jeff King 802b123366 block-sha1: factor out get_be and put_be wrappers
The BLK_SHA1 code has optimized wrappers for doing endian
conversions on memory that may not be aligned. Let's pull
them out so that we can use them elsewhere, especially the
time-tested list of platforms that prefer each strategy.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-23 14:03:21 -08:00
Erik Faye-Lund c9df6f4574 mingw: remove mingw_write
Since 0b6806b9 ("xread, xwrite: limit size of IO to 8MB"), this
wrapper is no longer needed, as read and write are already split
into small chunks.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-17 12:09:52 -08:00
Jonathan Nieder bc380fca60 mark Windows build scripts executable
On Windows the convention is to rely on filename extensions to decide
whether a file is executable so Windows users are probably not relying
on the executable bit of these scripts, but on other platforms it can
be useful documentation.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-25 15:01:22 -08:00
Vicent Marti 7e3dae4943 compat: add endianness helpers
The POSIX standard doesn't currently define a `ntohll`/`htonll`
function pair to perform network-to-host and host-to-network
swaps of 64-bit data. These 64-bit swaps are necessary for the on-disk
storage of EWAH bitmaps if they are not in native byte order.

Many thanks to Ramsay Jones <ramsay@ramsay1.demon.co.uk> and
Torsten Bögershausen <tboegi@web.de> for cygwin/mingw/msvc
portability fixes.

Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-18 10:57:42 -08:00
Junio C Hamano c01499ef69 C: have space around && and || operators
Correct all hits from

    git grep -e '\(&&\|||\)[^ ]' -e '[^	 ]\(&&\|||\)' -- '*.c'

i.e. && or || operators that are followed by anything but a SP,
or that follow something other than a SP or a HT, so that these
operators have a SP around it when necessary.

We usually refrain from making this kind of a tree-wide change in
order to avoid unnecessary conflicts with other "real work" patches,
but in this case, the end result does not have a potentially
cumbersome tree-wide impact, while this is a tree-wide cleanup.

Fixes to compat/regex/regcomp.c and xdiff/xemit.c are to replace a
HT immediately after && with a SP.

This is based on Felipe's patch to bultin/symbolic-ref.c; I did all
the finding out what other files in the whole tree need to be fixed
and did the fix and also the log message while reviewing that single
liner, so any screw-ups in this version are mine.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-16 10:26:39 -07:00
Jonathan Nieder d0c789084c Merge branch 'kb/msvc-compile'
* kb/msvc-compile:
  Windows: do not redefine _WIN32_WINNT
  MinGW: Fix stat definitions to work with MinGW runtime version 4.0
  MSVC: fix stat definition hell
  MSVC: fix compile errors due to macro redefinitions
  MSVC: fix compile errors due to missing libintl.h
2013-09-24 23:31:58 -07:00
Junio C Hamano 79e46c9fed Merge branch 'jk/config-int-range-check'
* jk/config-int-range-check:
  compat/mingw.h: define PRId64
2013-09-19 11:04:25 -07:00
Johannes Sixt 1562f3be48 compat/mingw.h: define PRId64
Provide PRId64 alongside PRIuMAX.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-19 11:03:38 -07:00
Junio C Hamano f2ded0f807 Merge branch 'tb/precompose-autodetect-fix'
On MacOS X, we detected if the filesystem needs the "pre-composed
unicode strings" workaround, but did not automatically enable it.
Now we do.

* tb/precompose-autodetect-fix:
  Set core.precomposeunicode to true on e.g. HFS+
2013-09-17 11:39:59 -07:00
Sebastian Schuberth 8453c1259a Windows: do not redefine _WIN32_WINNT
With MinGW runtime version 4.0 this interferes with the previous
definition from sdkddkver.h.

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-11 14:50:19 -07:00
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 a2374f58e8 MSVC: fix stat definition hell
In msvc.h, there's a couple of stat related functions defined diffently
from mingw.h. When we remove these definitions, the only problem we get is
"warning C4005: '_stati64' : macro redefinition" for this line in mingw.h:

#define _stati64(x,y) mingw_stat(x,y)

The reason is that as of MSVCR80.dll (distributed with MSVC 2005), the
original _stati64 family of functions was renamed to _stat32i64, and the
former function names became macros (pointing to the appropriate function
based on the definition of _USE_32BIT_TIME_T).

Defining _stati64 works on MinGW because MinGW by default compiles against
the MSVCRT.DLL that is part of Windows (i.e. _stati64 is a function rather
than a macro).

Note: MinGW *can* compile for newer MSVC runtime versions, and MSVC
apparently can also compile for the Windows MSVCRT.DLL via the DDK (see
http://www.syndicateofideas.com/posts/fighting-the-msvcrt-dll-hell ).

Remove the stat definitions from msvc.h, as they are not compiler related.

In mingw.h, determine the runtime version in use from the definitions of
_stati64 and _USE_32BIT_TIME_T, and define stat() accordingly.

This also fixes that stat() in MSVC builds still resolves to mingw_lstat()
instead of mingw_stat().

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
Karsten Blees 61542f7735 MSVC: fix compile errors due to macro redefinitions
Skip errno.h definitions if they are already defined.

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
Junio C Hamano a23274e127 Merge branch 'sp/clip-read-write-to-8mb'
Send a large request to read(2)/write(2) as a smaller but still
reasonably large chunks, which would improve the latency when the
operation needs to be killed and incidentally works around broken
64-bit systems that cannot take a 2GB write or read in one go.

* sp/clip-read-write-to-8mb:
  Revert "compat/clipped-write.c: large write(2) fails on Mac OS X/XNU"
  xread, xwrite: limit size of IO to 8MB
2013-09-09 14:50:39 -07:00
Junio C Hamano 05584b2a4e Merge branch 'nd/gc-lock-against-each-other'
* nd/gc-lock-against-each-other:
  gc: reject if another gc is running, unless --force is given
2013-09-04 12:35:34 -07:00
Junio C Hamano 9a7eaad65f Merge branch 'da/darwin'
* da/darwin:
  OS X: Fix redeclaration of die warning
  Makefile: Fix APPLE_COMMON_CRYPTO with BLK_SHA1
  imap-send: use Apple's Security framework for base64 encoding
2013-09-04 12:28:15 -07:00
Torsten Bögershausen 92b0c8bed0 Set core.precomposeunicode to true on e.g. HFS+
When core.precomposeunicode was introduced in 76759c7d,
it was set to false on a unicode decomposing file system like HFS+
to be compatible with older versions of Git.

The Mac OS users need to find out that this configuration exist
and change it manually from false to true.

A smoother workflow can be achieved,
so set core.precomposeunicode to true on a decomposing file system.

Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-27 07:41:32 -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
Nguyễn Thái Ngọc Duy 64a99eb476 gc: reject if another gc is running, unless --force is given
This may happen when `git gc --auto` is run automatically, then the
user, to avoid wait time, switches to a new terminal, keeps working
and `git gc --auto` is started again because the first gc instance has
not clean up the repository.

This patch tries to avoid multiple gc running, especially in --auto
mode. In the worst case, gc may be delayed 12 hours if a daemon reuses
the pid stored in gc.pid.

kill(pid, 0) support is added to MinGW port so it should work on
Windows too.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-09 09:10:05 -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
Jeremy Huddleston 3ef2bcad02 imap-send: use Apple's Security framework for base64 encoding
Use Apple's supported functions for base64 encoding instead
of the deprecated OpenSSL functions.

Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com>
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-30 08:53:24 -07:00
Junio C Hamano 0def7126fd Merge branch 'ob/typofixes'
* ob/typofixes:
  typofix: in-code comments
  typofix: documentation
  typofix: release notes
2013-07-24 19:23:01 -07:00
Junio C Hamano fc5894bc72 Merge branch 'rj/sparse'
* rj/sparse:
  Revert "compat/unsetenv.c: Fix a sparse warning"
2013-07-24 19:21:30 -07:00
Ondřej Bílka 749f763dbb typofix: in-code comments
Signed-off-by: Ondřej Bílka <neleai@seznam.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-22 16:06:49 -07:00
Benoit Sigoure f1e2a48d18 Revert "compat/unsetenv.c: Fix a sparse warning"
This reverts commit ec535cc27e.

POSIX explicitly states "the [environ] variable, which
must be declared by the user if it is to be used directly".
Not declaring it causes compilation to fail on OS X.

Instead don't declare the variable on MinGW, as it causes
a spurious warning there.

Signed-off-by: Benoit Sigoure <tsunanet@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-21 15:09:56 -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
Junio C Hamano 39fd762572 Sync with 1.8.3.1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-10 12:35:45 -07:00
Erik Faye-Lund a45406585b mingw: make mingw_signal return the correct handler
Returning the SIGALRM handler for SIGINT is not very useful.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-10 12:34:03 -07:00
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 380395d094 mingw: rename WIN32 cpp macro to GIT_WINDOWS_NATIVE
Throughout git, it is assumed that the WIN32 preprocessor symbol is
defined on native Windows setups (mingw and msvc) and not on Cygwin.
On Cygwin, most of the time git can pretend this is just another Unix
machine, and Windows-specific magic is generally counterproductive.

Unfortunately Cygwin *does* define the WIN32 symbol in some headers.
Best to rely on a new git-specific symbol GIT_WINDOWS_NATIVE instead,
defined as follows:

	#if defined(WIN32) && !defined(__CYGWIN__)
	# define GIT_WINDOWS_NATIVE
	#endif

After this change, it should be possible to drop the
CYGWIN_V15_WIN32API setting without any negative effect.

[rj: %s/WINDOWS_NATIVE/GIT_WINDOWS_NATIVE/g ]

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-08 12:14:35 -07:00
Ramsay Jones 84d32bf767 sparse: Fix mingw_main() argument number/type errors
Sparse issues 68 errors (two errors for each main() function) such
as the following:

      SP git.c
  git.c:510:5: error: too many arguments for function mingw_main
  git.c:510:5: error: symbol 'mingw_main' redeclared with different type \
    (originally declared at git.c:510) - different argument counts

The errors are caused by the 'main' macro used by the MinGW build
to provide a replacement main() function. The original main function
is effectively renamed to 'mingw_main' and is called from the new
main function. The replacement main is used to execute certain actions
common to all git programs on MinGW (e.g. ensure the standard I/O
streams are in binary mode).

In order to suppress the errors, we change the macro to include the
parameters in the declaration of the mingw_main function.

Unfortunately, this change provokes both sparse and gcc to complain
about 9 calls to mingw_main(), such as the following:

      CC git.o
  git.c: In function 'main':
  git.c:510: warning: passing argument 2 of 'mingw_main' from \
    incompatible pointer type
  git.c:510: note: expected 'const char **' but argument is of \
    type 'char **'

In order to suppress these warnings, since both of the main
functions need to be declared with the same prototype, we
change the declaration of the 9 main functions, thus:

    int main(int argc, char **argv)

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-28 12:32:08 -07:00
Ramsay Jones 657b35f4be compat/mingw.c: Fix some sparse warnings
Sparse issues the following warnings:

        SP compat/mingw.c
    compat/mingw.c:795:3: warning: symbol 'pinfo_t' was not declared. \
        Should it be static?
    compat/mingw.c:796:16: warning: symbol 'pinfo' was not declared. \
        Should it be static?
    compat/mingw.c:797:18: warning: symbol 'pinfo_cs' was not declared. \
        Should it be static?
    compat/mingw.c:1207:23: warning: Using plain integer as NULL pointer

In 'pinfo_t' variable, defined on line 795, seems to have been a
mistake (a missing typedef keyword?), so we simply remove it.

The 'pinfo' variable does not require more than file scope, so we
simply add the static modifier to the declaration.

The 'pinfo_cs' variable, in contrast, requires initialisation in the
mingw replacement main() function, so we add an extern declaration to
the compat/mingw.h header file.

The remaining warning is suppressed by replacing the rhs of the
pointer assignment with the NULL pointer literal.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-28 12:27:11 -07:00
Ramsay Jones 15b7f601fc compat/win32mmap.c: Fix some sparse warnings
Sparse issues two 'Using plain integer as NULL pointer' warnings
against the call to the CreateFileMapping() function. The warnings
relate to the second and sixth parameters, which both have pointer
type. In order to suppress the warnings, we simply pass the NULL
pointer, rather than '0', to those parameters in the function call.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-28 12:27:08 -07:00
Ramsay Jones 1c31596a4b compat/poll/poll.c: Fix a sparse warning
Sparse issues an 'Using plain integer as NULL pointer' warning when
passing the constant '0' as the second parameter in the call to the
WSAEventSelect() function. The function parameter has a pointer type
(WSAEVENT, aka HANDLE, aka void *) so that, in order to suppress the
warning, we simply pass NULL for that parameter in the function call
expression.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-28 12:27:04 -07:00
Ramsay Jones 9c3b051f93 compat/win32/pthread.c: Fix a sparse warning
Sparse issues a 'Using plain integer as NULL pointer' warning when
initializing an pthread_t structure with an '{ 0 }' initializer.
The first field of the pthread_t structure has type HANDLE (void *),
so in order to suppress the warning, we replace the initializer
expression with '{ NULL }'.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-28 12:26:45 -07:00
Ramsay Jones ec535cc27e compat/unsetenv.c: Fix a sparse warning
The gitunsetenv function includes an (redundant) declaration of the
'environ' symbol, which is a pointer to the table of environment
variables. Unfortunately, on MinGW, this provokes sparse to issue
the following warning:

    compat/unsetenv.c:5:20: warning: non-ANSI function declaration of \
    function '__p__environ'

On MinGW, the <stdlib.h> header defines the 'environ' symbol as a
preprocessor macro (via _environ) which obtains the environ table
pointer via a call to the __p__environ() function.

In order to suppress the warning, we simply remove the redundant
declaration of the 'environ' symbol, since the symbol is already
declared correctly in <stdlib.h> (included via git-compat-util.h).

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-28 12:26:38 -07:00
Ramsay Jones eec7fd8bc5 compat/nedmalloc: Fix compiler warnings on linux
On linux, when the build variable USE_NED_ALLOCATOR is set, gcc
issues the following warnings:

    In file included from compat/nedmalloc/nedmalloc.c:63:
    .../malloc.c.h: In function 'mmap_resize':
    .../malloc.c.h:3762: warning: implicit declaration of function 'mremap'
    .../malloc.c.h: In function 'sys_trim':
    .../malloc.c.h:4195: warning: comparison between pointer and integer

The warnings are caused by the <sys/mman.h> header not enabling the
(conditional) declaration of the mremap() function.  The declaration
can be enabled by defining the _GNU_SOURCE symbol prior to including
certain system header files. In particular, it may not be sufficient
to simply define _GNU_SOURCE just prior to including the <sys/mman.h>
header. (e.g. defining the symbol after including <sys/types.h> will
be completely ineffective.)

In order to suppress the warnings, we define the _GNU_SOURCE symbol
at the start of the malloc.c.h header file.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-28 12:26:09 -07:00
Ramsay Jones 241c957d89 compat/nedmalloc: Fix some sparse warnings
Sparse issues many "Using plain integer as NULL pointer" warnings
while checking nedmalloc.c (at least 98 such warnings before giving
up due to "too many warnings"). In addition, sparse issues some
"non-ANSI function declaration" type warnings for the symbols
'win32_getcurrentthreadid', 'malloc_stats' and 'malloc_footprint'.

In order to suppress the NULL pointer warnings, rather than replace
all uses of '0' as a null pointer representation with NULL, we add
-Wno-non-pointer-null to SPARSE_FLAGS while checking nedmalloc.c.

In order to suppress the "non-ANSI function declaration" warnings,
we simply include the missing 'empty parameter list' prototype (void)
in the function declarations.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-28 12:24:48 -07:00
Ramsay Jones 4fc8fb48e9 compat/fnmatch/fnmatch.c: Fix a sparse error
Sparse issues the following error and warnings:

    SP compat/fnmatch/fnmatch.c
.../fnmatch.c:144:17: warning: Using plain integer as NULL pointer
.../fnmatch.c:238:67: warning: Using plain integer as NULL pointer
.../fnmatch.c:303:40: error: too many arguments for function getenv

The error is caused by the extern declaration for the getenv function
not including the function prototype. Without the prototype, sparse
effectively sees the declaration as 'char *getenv(void)'. In order to
suppress the error, we simply include the function prototype.

In order to suppress the warnings, we include the <stddef.h> header
which provides an appropriate definition of the NULL macro, rather
than using the (inappropriate) default definition at fnmatch.c:132.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-28 12:24:40 -07:00
Ramsay Jones 5b62e6374a compat/regex/regexec.c: Fix some sparse warnings
Sparse issues an "Using plain integer as NULL pointer" warning along
with two "symbol was not declared. Should it be static?" type warnings
for the 'merge_state_with_log' and 'find_recover_state' functions.

In order to suppress the warnings, we replace the use of '0' as a null
pointer constant with NULL and add the static modifier to the function
definitions.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-28 12:24:18 -07:00