Commit Graph

16968 Commits

Author SHA1 Message Date
Peter Foley
5bc753c5a2 Fix strict aliasing
Fix a strict aliasing error detected by gcc 6.0+

winsup/cygwin/ChangeLog
* pinfo.cc (winpids::enum_process): Fix strict aliasing.

Signed-off-by: Peter Foley <pefoley2@pefoley.com>
2016-03-20 12:31:42 +01:00
Peter Foley
0611132f04 Fix typoed comparison
winsup/cygwin/ChangeLog
* thread.cc (semaphore::open): Fix mistaken conditional.

Signed-off-by: Peter Foley <pefoley2@pefoley.com>
2016-03-20 12:19:35 +01:00
Peter Foley
1eb7cb2553 The address of an class always evaluates to true
winsup/cygwin/pinfo.cc:465:14: error: the compiler can assume that the
address of 'tc' will always evaluate to 'true' [-Werror=address]

winsup/cygwin/ChangeLog
* pinfo.cc (_pinfo::set_ctty): remove always true check.

Signed-off-by: Peter Foley <pefoley2@pefoley.com>
2016-03-20 12:16:42 +01:00
Peter Foley
2f310e44c4 Remove misleading indentation
* syscalls.cc (getpriority): Fix misleading indentation.

Signed-off-by: Peter Foley <pefoley2@pefoley.com>
2016-03-20 11:58:57 +01:00
Peter Foley
dc85a189a4 Add necessary braces to if statements
The missing braces cause only the first expression to be guarded by the
else clause.

winsup/cygwin/ChangeLog
* fhandler_disk_file.cc (facl): Add missing braces to if statement.
* mount.cc (dos_drive_mappings): Add missing braces to if statement.

Signed-off-by: Peter Foley <pefoley2@pefoley.com>
2016-03-20 11:55:08 +01:00
Peter Foley
922e21a3ea Remove dead code from fhandler_console.
This if is unconditionally false, so remove it.

winsup/cygwin/fhandler_console.cc: In member function 'bool dev_console::fillin(HANDLE)':
winsup/cygwin/fhandler_console.cc:740:22: error: self-comparison always evaluates to false [-Werror=tautological-compare]
       if (b.dwSize.Y != b.dwSize.Y || b.dwSize.X != b.dwSize.X)
           ~~~~~~~~~~~^~~~~~~~~~~~~
winsup/cygwin/fhandler_console.cc:740:50: error: self-comparison always evaluates to false [-Werror=tautological-compare]
       if (b.dwSize.Y != b.dwSize.Y || b.dwSize.X != b.dwSize.X)
                                       ~~~~~~~~~~~^~~~~~~~~~~~~

winsup/cygwin/ChangeLog
* fhandle_console.cc (fillin): remove dead code

Signed-off-by: Peter Foley <pefoley2@pefoley.com>
2016-03-20 11:54:49 +01:00
Peter Foley
c0b6fc54b1 Remove unused and unsafe call to __builtin_frame_address
initial_sp has been unused since commit fbf23e3 back in 2000.
Keep the value, so as to avoid changing the offset of magic_biscuit.

winsup/cygwin/lib/_cygwin_crt0_common.cc:140:52:
error: calling 'void* __builtin_frame_address(unsigned int)' with a
nonzero argument is unsafe [-Werror=frame-address]
   u->initial_sp = (char *) __builtin_frame_address (1);

winsup/cygwin/ChangeLog
lib/_cygwin_crt0_common.cc (_cygwin_crt0_common): Initialize initial_sp
with nullptr.

Signed-off-by: Peter Foley <pefoley2@pefoley.com>
2016-03-20 11:51:43 +01:00
Corinna Vinschen
3df400dc83 winsup: Move all old CVS Changelogs into CVSChangeLogs.old dir 2016-03-19 13:59:52 +01:00
Corinna Vinschen
e42f66d00f Remove ill-advised cygwin_props
Cygwin_props have been invented to allow switching off the unique
installation keys in the first place, supposedly for debugging.
This never really was a good idea, after all we *want* the installations
to be independent and there's no good reason to break that, not even
for debugging purposes.

Other than that, cygwin_props were meant to be used for some other global
settings which never took place.  There's just no good reason to tweak
the DLL binary invisibly where a setting could be done in a file or the
environment.

This patch removes the cygwin_props entirely, including the related
settings in cygcheck.

cygwin:
	* cygprops.h: Remove file.
	* globals.cc (cygwin_props): Remove.
	* cygheap.cc (init_cygheap::init_installation_root): Drop removing
	installation key.

utils:
	* cygcheck.cc: Drop including cygprops.h.  Remove now unused option
	values.
	(unique_object_name_opt): Remove.
	(handle_unique_object_name): Remove function.
	(usage): Remove text for unique-object-names options.
	(longopts): Remove unique-object-names options.
	(main): Drop handling unique-object-names options.

doc:
	* utils.xml (cygcheck): Remove text for unique-object-names options.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-03-19 13:21:18 +01:00
Jeff Johnston
d17977ccc7 Regenerate configure script. 2016-03-19 00:27:59 -04:00
Corinna Vinschen
83029bb69e Remove references to older Cygwin releases from documentation
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-03-18 22:52:04 +01:00
Yaakov Selkowitz
97d1536d17 sparc64: move struct timeval to <sys/_timeval.h>
commit bb01594897 moved the struct timeval
declaration from <sys/time.h> to <sys/_timeval.h>, and commit
01885f533d changed <sys/select.h> to include
<sys/_timeval.h>.  Therefore, sparc64's own struct timeval needs to be
moved accordingly in order to avoid a conflict from the generic type.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
Acked-by: Corinna Vinschen <vinschen@redhat.com>
2016-03-18 15:29:13 -05:00
Yaakov Selkowitz
f049607eb0 Feature test macros overhaul: sparc64
sparc64 has a number of its own headers which override the generic ones.
These too need to use feature test macros properly.

These changes correspond to the generic fcntl.h and sys/stat.h changes
in commit d2df6d381b and
commit 069e400c91.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
Acked-by: Corinna Vinschen <vinschen@redhat.com>
2016-03-18 15:29:05 -05:00
Howland, Craig D
19879c03c5 Cleanup macros in chacha_private.h to be target-type independent
* libc/stdlib/chacha_private.h (U8C, U32C): Remove un-necessary macros.
	(U8V, U32V): Drop masking.
2016-03-18 21:20:06 +01:00
Corinna Vinschen
8e2b2adb3d Only export arc4random_stir and arc4random_addrandom on Cygwin
Export to maintain backward compatibility, but don't let
	them do anything useful.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-03-18 21:12:12 +01:00
Yaakov Selkowitz
d3f203d091 Feature test macros overhaul: signal.h (part 2)
Move the sig*set macros following the functions inside their feature
test macro conditional.

This fixes the build on bare-metal targets following
commit 5c78499ae2.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
Acked-by: Corinna Vinschen <vinschen@redhat.com>
2016-03-18 11:22:32 -05:00
Yaakov Selkowitz
f3ec63771b arm: fix build with newlib supplied syscalls enabled
In file included from libc/sys/arm/crt0.S:2:0:
libc/sys/arm/arm.h:32:25: fatal error: acle-compat.h: No such file or directory

acle-compat.h is libc/machine/arm.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-18 11:22:32 -05:00
Corinna Vinschen
dcf31cdc99 Implement getentropy for Cygwin
* miscfuncs.cc (getentropy): Move fhandler_dev_random::crypt_gen_random
	here and rename to getentropy.  Fix type and return values to match
	getentropy requirements.
	* miscfuncs.h (getentropy): Add prototype.
	* fhandler.h (fhandler_dev_random::crypt_gen_random): Remove prototype.
	* fhandler_random.cc (fhandler_dev_random::crypt_gen_random): Drop.
	(fhandler_dev_random::write): Use getentropy instead.
	(fhandler_dev_random::read): Ditto.
	* fhandler_socket.cc (fhandler_socket::af_local_set_secret): Ditto.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-03-18 14:46:20 +01:00
Corinna Vinschen
e0fc33322d Delete Cygwin's arc4random in favor of new Newlib implementation
* Makefile.in (DLL_OFILES): Remove arc4random.o.
	* libc/arc4random.c: Remove file.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-03-18 14:41:33 +01:00
Corinna Vinschen
7c96d6059c Arc4random locking: Check for threaded application on Cygwin
libc/stdlib/arc4random.h (_ARC4_LOCK): Special case Cygwin.
        (_ARC4_UNLOCK): Ditto.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-03-18 14:40:26 +01:00
Corinna Vinschen
5ccdcf0219 Add arc4random_stir and arc4random_addrandom for OpenBSD compatibility
* libc/stdlib/arc4random.c (arc4random_stir): New function.
        (arc4random_addrandom): Ditto.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-03-18 14:39:58 +01:00
Sebastian Huber
f74cf1350e Add arc4random() etc. from OpenBSD 5.8
According to the OpenBSD man page, "A Replacement Call for Random".  It
offers high quality random numbers derived from input data obtained by
the OpenBSD specific getentropy() system call which is declared in
<unistd.h> and must be implemented for each Newlib port externally.  The
arc4random() functions are used for example in LibreSSL and OpenSSH.

Cygwin provides currently its own implementation of the arc4random
family.  Maybe it makes sense to use this getentropy() implementation:

http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libcrypto/crypto/getentropy_win.c?rev=1.4&content-type=text/x-cvsweb-markup

	* libc/include/stdlib.h (arc4random): Declare if __BSD_VISIBLE.
	(arc4random_buf): Likewise.
	(arc4random_uniform): Likewise.
	* libc/include/sys/unistd.h (getentropy): Likewise.
	* libc/include/machine/_arc4random.h: New file.
	* libc/stdlib/arc4random.c: Likewise.
	* libc/stdlib/arc4random.h: Likewise.
	* libc/stdlib/arc4random_uniform.c: Likewise.
	* libc/stdlib/chacha_private.h: Likewise.
	* libc/sys/rtems/include/machine/_arc4random.h: Likewise.
	* libc/stdlib/Makefile.am (EXTENDED_SOURCES): Add arc4random.c
	and arc4random_uniform.c.
	* libc/stdlib/Makefile.in: Regenerate.
2016-03-18 12:33:41 +01:00
Sebastian Huber
55c239d834 Add timingsafe_memcmp()
This function is used by LibreSSL and OpenSSH and is provided by the
OpenBSD libc.

	* libc/include/string.h (timingsafe_memcmp): Declare.
	* libc/string/timingsafe_memcmp.c: New file.
	* libc/string/Makefile.am: Add new file.
	* libc/string/Makefile.in: Regenerate.
2016-03-18 12:33:40 +01:00
Sebastian Huber
559fd77dda Add timingsafe_bcmp()
This function is used by LibreSSL and OpenSSH and is provided by the
OpenBSD libc.

	* libc/include/string.h (timingsafe_bcmp): Declare.
	* libc/string/timingsafe_bcmp.c: New file.
	* libc/string/Makefile.am: Add new file.
	* libc/string/Makefile.in: Regenerate.
2016-03-18 12:33:40 +01:00
Sebastian Huber
8740fa7fd0 Add explicit_bzero()
This function is used by LibreSSL and OpenSSH and is provided by the
OpenBSD libc.

	* libc/include/string.h (explicit_bzero): Declare.
	* libc/string/explicit_bzero.c: New file.
	* libc/string/Makefile.am: Add new file.
	* libc/string/Makefile.in: Regenerate.
2016-03-18 12:33:40 +01:00
Sebastian Huber
a10dacbdac Guard ssize_t definition by _SSIZE_T_DECLARED
This guard is used by FreeBSD <sys/socket.h> for example.  The FreeBSD
network stack is used in RTEMS.

	* newlib/libc/include/sys/types.h (ssize_t): Guard by
	_SSIZE_T_DECLARED.
2016-03-18 12:28:55 +01:00
Yaakov Selkowitz
00d2fe1959 Cygwin: define byteswap.h inlines as macros
The bswap_* "functions" are macros in glibc, so they may be tested for
by the preprocessor (e.g. #ifdef bswap_16).

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:23 -05:00
Yaakov Selkowitz
3237fb31b3 Feature test macros overhaul: Cygwin headers
Use proper internal macros for BSD and GNU.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:22 -05:00
Yaakov Selkowitz
396942b0b5 Feature test macros overhaul: sys/types.h
The u_int/u_char/etc. BSD types are needed by Cygwin's netinet/*.h
headers, so they always need to be available.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:21 -05:00
Yaakov Selkowitz
ee97c4b224 Revert "Remove inclusion of sys/select.h in sys/types.h for backward compat"
This BSDism is still in use (e.g. putty).

This reverts commit 088f7a7239.
2016-03-17 21:09:19 -05:00
Yaakov Selkowitz
04f288851a Feature test macros overhaul: sys/time.h
The inclusion of <sys/select.h> is required also by POSIX.1-2001.
setitimer is XSI, and futimesat is GNU.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:18 -05:00
Yaakov Selkowitz
069e400c91 Feature test macros overhaul: sys/stat.h
Replace all !_POSIX_SOURCE with BSD.  All *at functions depend on
ATFILE; futimens is POSIX.1-2008.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:16 -05:00
Yaakov Selkowitz
03c4ef1c51 Feature test macros overhaul: sys/select.h
Remove !_POSIX_SOURCE conditional; pselect is POSIX.1-2001.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:15 -05:00
Yaakov Selkowitz
73e2f46419 Feature test macros overhaul: wchar.h
open_wmemstream is POSIX.1-2008.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:13 -05:00
Yaakov Selkowitz
be657151f1 Feature test macros overhaul: unistd.h
Throughout, use proper internal macros for functions, including those
marked as target-specific.  Use ATFILE for all *at functions.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:12 -05:00
Yaakov Selkowitz
43e5ee83fe Feature test macros overhaul: time.h
Throughout, replace __STRICT_ANSI__ with the proper internal macros.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:10 -05:00
Yaakov Selkowitz
6fe6a822ee Feature test macros overhaul: strings.h
Replace __STRICT_ANSI__ with the proper internal macros for bcmp etc.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:09 -05:00
Yaakov Selkowitz
615d63599b Feature test macros overhaul: string.h
Throughout, remove __STRICT_ANSI__ and use the proper internal macros.

bcmp, bcopy, bzero, index, and rindex were in POSIX prior to 2008.

memrchr is GNU.

strdup and strndup are POSIX.1-2008.

The int-returning form of strerror_r is POSIX.1-2001.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:07 -05:00
Yaakov Selkowitz
84ba25226c Feature test macros overhaul: stdlib.h
Throughout, simplify the C99/C11 conditionals, and replace
__STRICT_ANSI__ with the proper internal POSIX macros.  The _*_r
reentrant functions need not be guarded (and most haven't been) because
such names in the global scope are reserved to the implementation.

atoff is unique to newlib.

dtoa is not actually exported (_dtoa_r is used internally), is
nonstandard, and the declaration conflicts with the code included in
MySQL, NSPR, and SpiderMonkey.

mktemp was removed in POSIX.1-2001.

The qsort_r declarations are reordered so that the GNU version retains
precedence.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:06 -05:00
Yaakov Selkowitz
feec81e571 Feature test macros overhaul: stdio.h
Throughout, remove references to __STRICT_ANSI__ and use the proper
internal macros and versions for C99, POSIX, ATFILE for the various *at
functions, or LARGEFILE for fseeko and ftello.

[v]asprintf are GNU extensions, but the *iprintf, *iscanf, and
*asnprintf functions are unique to newlib.

getw and putw were removed from POSIX.1-2001. funopen is BSD, and
fopencookie is GNU.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:04 -05:00
Yaakov Selkowitz
5c78499ae2 Feature test macros overhaul: signal.h
Use proper internal macros for BSD sig_t and GNU sighandler_t.

sigaltstack and friends are XSI even in SUSv4 but in glibc are
nonetheless handled as POSIX.1-2008 (not 2001).

The requirement for the ucontext_t typedef in signal.h was XSI prior to
POSIX.1-2008.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:03 -05:00
Yaakov Selkowitz
25507f80a2 Feature test macros overhaul: pwd.h
getpw*_r dates back to POSIX.1c, and *pwent to XPG4v2.  Both are also BSD.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:01 -05:00
Yaakov Selkowitz
96972e7198 Feature test macros overhaul: pthread.h
Use internal macros for GNU extensions.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:09:00 -05:00
Yaakov Selkowitz
4e8291b8b0 Feature test macros overhaul: math.h
Simplify the C99 conditionals.  Mark the drem and gamma functions as
BSD|SVID, the Bessel double functions also XSI and the floats also SUSv3.
signgam is BSD|SVID|XSI, and matherr is SVID.  Finally, use the internal
macros to control the symbolic constants.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:08:59 -05:00
Yaakov Selkowitz
86a724b8c0 Feature test macros overhaul: limits.h
Simplify the C99 conditional, and use the internal macro for GNU extensions.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:08:57 -05:00
Yaakov Selkowitz
ec4fe40b23 Feature test macros overhaul: grp.h
_PATH_GROUP is a BSDism. getgr*_r are BSD|SVID|POSIX, and the *grent
functions are BSD|SVID|XPG4v2.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:08:56 -05:00
Yaakov Selkowitz
d94d983d1b Feature test macros overhaul: fnmatch.h
Use the proper internal macro for GNU extensions.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:08:54 -05:00
Yaakov Selkowitz
d2df6d381b Feature test macros overhaul: fcntl.h
Most of the !_POSIX_SOURCE code is BSD, although ironically some were
added to POSIX.1-2001.

Use the ATFILE conditional for most of the *at functions, except
futimesat which is GNU.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:08:53 -05:00
Yaakov Selkowitz
d2937299fa Feature test macros overhaul: dirent.h
MAXNAMLEN is a BSDism.

Use the proper internal macros instead of !_POSIX_SOURCE.  telldir and
seekdir are XSI, scandir and alphasort are POSIX.1-2008, and scandirat
is GNU.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:08:51 -05:00
Yaakov Selkowitz
575608b202 Feature test macros overhaul: ctype.h
Simplify C99 test for isblank.  isascii and toascii are BSD|SVID|XSI.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2016-03-17 21:08:50 -05:00