As noted in bug 17979 (and as I noted earlier in
<https://sourceware.org/ml/libc-alpha/2012-02/msg00647.html>), uchar.h
has gratuitously complicated code to determine the types for char16_t
and char32_t, and to reject including that header for pre-C11
compilers not defining __CHAR16_TYPE__ and __CHAR32_TYPE__. Since
those types are always required to match uint_least16_t and
uint_least32_t, which glibc knows how to define without reference to
such predefined macros, it's safe just to define those types the same
as the *least* types are defined in stdint.h, so allowing the header
to work with (for example) GCC 4.3.
This patch implements that. bits/types.h is made to define
__int_leastN_t and __uint_leastN_t so the logic for those types can
stay in a single place, and stdint.h is made to use those __*_t to
define the public *_t types. uchar.h is then made to use
__uint_least16_t and __uint_least32_t to define char16_t and char32_t,
so simplifying the logic there. A new test is added that verifies the
types chosen for char16_t and char32_t do indeed match the types the
compiler uses for u"" and U"" string literals.
Tested for x86_64. (I have not tested with any of the older compilers
for which this would actually make a difference to whether you can
include uchar.h.)
[BZ #17979]
* posix/bits/types.h (__int_least8_t): New typedef.
(__uint_least8_t): Likewise.
(__int_least16_t): Likewise.
(__uint_least16_t): Likewise.
(__int_least32_t): Likewise.
(__uint_least32_t): Likewise.
(__int_least64_t): Likewise.
(__uint_least64_t): Likewise.
* sysdeps/generic/stdint.h (int_least8_t): Define using
__int_least8_t.
(int_least16_t): Define using __int_least16_t.
(int_least32_t): Define using __int_least32_t.
(int_least64_t): Define using __int_least64_t.
(uint_least8_t): Define using __uint_least8_t.
(uint_least16_t): Define using __uint_least16_t.
(uint_least32_t): Define using __uint_least32_t.
(uint_least64_t): Define using __uint_least64_t.
* wcsmbs/uchar.h: Include <bits/types.h>.
(char16_t): Define using __uint_least16_t conditional only on
[!__USE_ISOCXX11].
(char32_t): Define using __uint_least32_t conditional only on
[!__USE_ISOCXX11].
* wcsmbs/test-char-types.c: New file.
* wcsmbs/Makefile (tests): Add test-char-types.
conform/ namespace tests of arpa/inet.h, netdb.h and netinet/in.h fail
for UNIX98 and XPG42 because of inclusion of stdint.h, which defines
macros not permitted in those headers for those standards. UNIX98
allows them to include inttypes.h, but (predating C99) has restricted
inttypes.h contents (not yet tested in the conform/ tests) not
including those macros; XPG4.2 has no such permission and no
inttypes.h / stdint.h at all.
This patch rearranges the headers to avoid this issue. intN_t
definitions move to bits/stdint-intn.h, and uintN_t definitions to
bits/stdint-uintn.h. (These are not bits/types/ headers because they
each define four types. They are separate rather than just a single
header because sys/types.h defines intN_t but u_intN_t rather than
uintN_t - and while sys/types.h could define uintN_t because of the
POSIX reservation of *_t, existing practice there is largely to
condition types on appropriate feature test macros, and indeed there
is at least one open bug report (14553) about a type that's not
so-conditioned, so maybe types there should actually have conditions
added where appropriate.) The affected network headers are then made
to include bits/stdint-uintn.h instead of stdint.h. This allows six
XFAILs to be removed.
This doesn't do anything about inttypes.h defining more than it should
for UNIX98, but we don't have conformtest expectations for that case
at present (and my inclination is that a fix for that should be as
local as possible - affecting only inttypes.h, not stdint.h, only for
the case of __USE_UNIX98 && !__USE_ISOC99).
Tested for x86_64.
[BZ #21455]
* bits/stdint-intn.h: New file.
* bits/stdint-uintn.h: Likewise.
* stdlib/Makefile (headers): Add bits/stdint-intn.h and
bits/stdint-uintn.h.
* inet/netinet/in.h: Include <bits/stdint-uintn.h> instead of
<stdint.h>.
* posix/sys/types.h: Include <bits/stdint-intn.h>.
(__int8_t_defined): Do not define here.
(int8_t): Likewise.
(int16_t): Likewise.
(int32_t): Likewise.
(int64_t): Likewise.
[__GNUC_PREREQ (2, 7)] (__intN_t): Likewise.
* resolv/netdb.h: Include <bits/stdint-uintn.h> instead of
<stdint.h>.
* include/netdb.h [_ISOMAC]: Do not include <stdint.h>.
* sysdeps/generic/stdint.h: Include <bits/stdint-intn.h> and
<bits/stdint-uintn.h>.
(int8_t): Do not define here.
(int16_t): Likewise.
(int32_t): Likewise.
(int64_t): Likewise.
(uint8_t): Likewise.
(uint16_t): Likewise.
(uint32_t): Likewise.
(uint64_t): Likewise.
* conform/Makefile (test-xfail-XPG42/arpa/inet.h/conform): Remove
variable.
(test-xfail-XPG42/netdb.h/conform): Likewise.
(test-xfail-XPG42/netinet/in.h/conform): Likewise.
(test-xfail-UNIX98/arpa/inet.h/conform): Likewise.
(test-xfail-UNIX98/netdb.h/conform): Likewise.
(test-xfail-UNIX98/netinet/in.h/conform): Likewise.
TS 18661-1 defines *fromfp* functions, which are declared in math.h
and whose return types are intmax_t and uintmax_t, without allowing
math.h to define those typedefs. (This is similar to e.g. ISO C
declaring vprintf in stdio.h without allowing that header to define
va_list.) Thus, math.h needs to access those typedefs under internal
names.
This patch accordingly arranges for bits/types.h (which defines only
internal names, not public *_t typedefs) to define __intmax_t and
__uintmax_t. stdint.h is made to use bits/types.h and define intmax_t
and uintmax_t using __intmax_t and __uintmax_t, to avoid duplication
of information. (It would be reasonable to define more of the types
in stdint.h - and in sys/types.h, where it duplicates such types -
using information already available in bits/types.h.) The idea is
that the subsequent addition of fromfp functions would then make
math.h include bits/types.h and use __intmax_t and __uintmax_t as the
return types of those functions.
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).
* bits/types.h (__intmax_t): New typedef.
(__uintmax_t): Likewise.
* sysdeps/generic/stdint.h: Include <bits/types.h>.
(intmax_t): Define using __intmax_t.
(uintmax_t): Define using __uintmax_t.
TS 18661-1 defines macros for the width of integer types, intended for
use with the fromfp functions to convert from floating-point types to
integer types of any width, in any rounding mode and with control over
whether "inexact" is raised. Such macros are, of course, more
generally useful than just with those functions.
Those macros are added to <limits.h> and <stdint.h>. Having
previously added the <limits.h> macros, this patch adds the <stdint.h>
ones. I've also added these macros to GCC's headers for GCC 7, but
for glibc systems, the definitions in GCC's <stdint.h> will only be
used with -ffreestanding.
Tested for x86_64 and x86.
* sysdeps/generic/stdint.h: Define
__GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION and include
<bits/libc-header-start.h> instead of including <features.h>.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (INT8_WIDTH): New macro.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT8_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (INT16_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT16_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (INT32_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT32_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (INT64_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT64_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_LEAST8_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_LEAST8_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_LEAST16_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_LEAST16_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_LEAST32_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_LEAST32_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_LEAST64_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_LEAST64_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_FAST8_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_FAST8_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_FAST16_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_FAST16_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_FAST32_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_FAST32_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (INT_FAST64_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (UINT_FAST64_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (INTPTR_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (UINTPTR_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (INTMAX_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (UINTMAX_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (PTRDIFF_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (SIG_ATOMIC_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (SIZE_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (WCHAR_WIDTH): Likewise.
[__GLIBC_USE (IEC_60559_BFP_EXT)] (WINT_WIDTH): Likewise.
* manual/arith.texi (Integers): Document these macros for types
specified by width properties.
* manual/lang.texi (Width of Type): Document these macros for
other standard typedefs.
* stdlib/tst-width-stdint.c: New file.
* stdlib/Makefile (tests): Add tst-width-stdint.
2006-06-23 Paul Eggert <eggert@cs.ucla.edu>
[BZ #2841]
* sysdeps/generic/stdint.h (UINT8_C, UINT16_C): Don't append 'U',
since C99 requires the result to promote to 'int' when uint_least8_t
and uint_least16_t promote to 'int'.
* time/time.h (struct timespec): Use __time_t for tv_sec element.
* sysdeps/generic/inttypes.h: Define __wchar_t. Use it instead of
wchar_t for function declarations and defintions.
* misc/sys/select.h: Define __need_time_t before including <time.h>.
Define suseconds_t if it hasn't happened yet.
* iconv/gconv.h: Define __need_wchar_t before including <stddef.h>.
* conform/data/sys/uio.h-data: Allow UIO_MAXIOV to be defined.
* sysdeps/generic/stdint.h: Don't get definition of wchar_t from
<stddef.h>.
* conform/data/stddef.h-data: Remove wint_t.
2001-07-06 Paul Eggert <eggert@twinsun.com>
* manual/argp.texi: Remove ignored LGPL copyright notice; it's
not appropriate for documentation anyway.
* manual/libc-texinfo.sh: "Library General Public License" ->
"Lesser General Public License".
2001-07-06 Andreas Jaeger <aj@suse.de>
* All files under GPL/LGPL version 2: Place under LGPL version
2.1.
* stdlib/Makefile (headers): Add bits/wchar.h.
* sysdeps/unix/sysv/linux/i386/bits/wchar.h: New file.
* sysdeps/generic/bits/wchar.h: New file.
* sysdeps/generic/stdint.h: Include <bits/wchar.h>. Use values in this
file to define WCHAR_MIN and WCHAR_MAX.
Change UINT*8_MAX and UIN*16_MAX value to type int.
* wcsmbs/wchar.h: Include <bits/wchar.h>. Use values in this
file to define WCHAR_MIN and WCHAR_MAX.
* sysdeps/alpha/fpu/bits/mathdef.h: Make FP_ILOGB0 and FP_ILOGBNAN
int values.
* sysdeps/arm/fpu/bits/mathdef.h: Likewise.
* sysdeps/generic/bits/mathdef.h: Likewise.
* sysdeps/i386/fpu/bits/mathdef.h: Likewise.
* sysdeps/m68k/fpu/bits/mathdef.h: Likewise.
* sysdeps/powerpc/fpu/bits/mathdef.h: Likewise.
* sysdeps/sparc/fpu/bits/mathdef.h: Likewise.
* locale/locale.h (struct lconv): Add __ prefix to the new members
if not C99.
* sysdeps/generic/inttypes.h: Remove unnecessary imaxabs and
imaxdiv optimizations.
* sysdeps/wordsize-32/lldiv.c: Add hack to make alias work.
* sysdeps/wordsize-64/ldiv.c: Likewise.
* sysdeps/alpha/fpu/bits/fenv.h: Change type of FE_*_ENV macros to
const fenv_t*.
* sysdeps/generic/bits/fenv.h: Likewise.
* sysdeps/i386/fpu/bits/fenv.h: Likewise.
* sysdeps/ia64/bits/fenv.h: Likewise.
* sysdeps/m68k/fpu/bits/fenv.h: Likewise.
* sysdeps/mips/bits/fenv.h: Likewise.
* sysdeps/s390/fpu/bits/fenv.h: Likewise.
* sysdeps/sparc/fpu/bits/fenv.h: Likewise.
Reported by Joseph S. Myers <jsm28@cam.ac.uk>.
* catgets/open_catalog.c: Likewise.
* include/netdb.h: Change type of first parameter of __getnetbyaddr_r.
* inet/getnetbyad.c: Likewise.
* inet/getnetbyad_r.c: Likewise.
* nis/nss_nis/nis-network.c: Likewise.
* nis/nssplus_nis/nisplus-network.c: Likewise.
* nss/nss_files/files-network.c: Likewise.
* resolv/netdb.h: Define uint32_t if not already happened.
Include bits/netdb.h. Remove definition of struct netent.
Change type of first parameter of getnetbyaddr_r and getnetbyaddr.
* sysdeps/generic/stdint.h: Allow definition of uint32_t elsewhere.
* sysdeps/generic/bits/netdb.h: New file.
* sysdeps/unix/sysv/linux/alpha/bits/netdb.h: New file.
1999-05-19 Jakub Jelinek <jj@ultra.linux.cz>
* sysdeps/generic/bits/elfclass.h: Version common to
wordsize-32 and wordsize-64.
* sysdeps/generic/bits/environments.h: Ditto.
* sysdeps/generic/stdint.h: Ditto.
* sysdeps/generic/inttypes.h: Ditto.
* sysdeps/generic/bits/wordsize.h: New file.
* stdlib/Makefile: Add bits/wordsize.h to headers.
* sysdeps/sparc/sparc64/bits/wordsize.h: New file.
* sysdeps/sparc/sparc64/fpu/bits/fenv.h: Allow the same exported
headers to be used for 32bit and 64bit ABI compilations.
* sysdeps/sparc/sparc64/fpu/fpu_control.h: Ditto.
* sysdeps/unix/sysv/linux/sparc/sparc64/bits/setjmp.h: Ditto.
* sysdeps/unix/sysv/linux/sparc/sparc64/bits/types.h: Ditto.
* sysdeps/unix/sysv/linux/sparc/sparc64/bits/statfs.h: Ditto.
* sysdeps/unix/sysv/linux/sparc/sparc64/sys/ucontext.h: Ditto.
* sysdeps/wordsize-64/bits/elfclass.h: Remove.
* sysdeps/wordsize-64/bits/environments.h: Remove.
* sysdeps/wordsize-64/stdint.h: Remove.
* sysdeps/wordsize-64/inttypes.h: Remove.
* sysdeps/wordsize-64/bits/wordsize.h: New file.
* sysdeps/wordsize-32/bits/elfclass.h: Remove.
* sysdeps/wordsize-32/bits/environments.h: Remove.
* sysdeps/wordsize-32/stdint.h: Remove.
* sysdeps/wordsize-32/inttypes.h: Remove.
* sysdeps/wordsize-32/bits/wordsize.h: New file.
1999-05-19 Jakub Jelinek <jj@ultra.linux.cz>
* sysdeps/sparc/sparc64/memcpy.S (__align_cpy_4, __align_cpy_8,
__align_cpy_16): New functions.
(__align_cpy_2, __align_cpy_1): New aliases to memcpy.
* sysdeps/sparc/sparc32/Versions: New file.
* sysdeps/sparc/sparc64/Versions: New file.
* sysdeps/sparc/Versions: Remove.
1999-05-19 Jakub Jelinek <jj@ultra.linux.cz>
* sysdeps/unix/sysv/linux/configure.in:
On sparc64-*-linux*, set slibdir to /lib64 if prefix
is /usr, plus set libdir to ${exec_prefix}/lib64.
* sysdeps/unix/sysv/linux/configure: Regenerated.
* config.make.in: Propagate libdir settings from configure
to the Makefiles.
* shlib-versions: sparc64-*-linux* dynamic linker is
/lib64/ld-linux.so.2.
1998-02-15 Ulrich Drepper <drepper@cygnus.com>
* nss/nsswitch.c (__nss_lookup): Return 1 if this was the last
module.
* nss/getXXent_r.c: If no more module is found don't try to call
setXXent functions but leave unsuccessfully.
* malloc/obstack.h: Cleanups.
* sysdeps/wordsize-32/stdint.h: New file.
* sysdeps/wordsize-64/stdint.h: New file.
* sysdeps/generic/stdint.h: New file.
* sysdeps/wordsize-32/inttypes.h: Adopt to use stdint.h.
* sysdeps/wordsize-64/inttypes.h: Likewise.
* stdlib/Makefile (headers): Add stdint.h.
1998-02-03 Paul Eggert <eggert@twinsun.com>
* malloc/obstack.h (PTR_INT_TYPE): Use __PTRDIFF_TYPE__ if available.
1998-02-13 17:59 Zack Weinberg <zack@rabi.phys.columbia.edu>
* timezone: New directory.
* time/README, time/africa, time/antarctica, time/asia,
time/australasia, time/backward, time/checktab.awk,
time/etcetera, time/europe, time/factory, time/ialloc.c,
time/iso3166.tab, time/leapseconds, time/northamerica,
time/pacificnew, time/private.h, time/scheck.c,
time/solar87, time/solar88, time/solar89, time/southamerica,
time/systemv, time/test-tz.c, time/tzfile.h,
time/tzselect.ksh, time/yearistype, time/zdump.c,
time/zic.c, time/zone.tab: Moved to timezone.
* time/tzfile.c: Include tzfile.h from timezone subdir.
* time/tzset.c: Likewise.
* time/Makefile: Cut out all code relating to timezones...
* timezone/Makefile: ...and paste it in here.
* Makefile (subdirs): Add timezone.
1998-02-13 18:45 H.J. Lu <hjl@gnu.org>
* libc.map (_sys_nerr): Added.
* sysdeps/unix/sysv/linux/errlist.c (_sys_nerr): Make it
versioned symbol.
1998-02-15 17:16 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/bits/socket.h: Define PF_KEY and
pseudo_AF_KEY instead of pseudo_PF_KEY and AF_KEY.
Reported by Craig Metz <cmetz@inner.net>.
1998-01-22 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* nss/nss_files/files-parse.c (LOOKUP_NAME_CASE): Use __strcasecmp
instead of strcasecmp.
* nss/nss_files/files-alias.c (get_next_alias): Likewise.
* wctype/wctype.h (_ISwbit): Avoid warning with gcc before 2.8.
1998-02-15 16:55 Ulrich Drepper <drepper@cygnus.com>
* socket/sys/socket.h (setsockopt): Make OPTVAL parameter const.
Patch by Dean Gaudet <dgaudet@arctic.org>.
1998-02-15 16:53 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/Dist: Add getresgid.c and getresuid.c.
1998-02-15 10:49 Zack Weinberg <zack@rabi.phys.columbia.edu>
* sysdeps/unix/sysv/linux/poll.c: If compiled against a kernel
with no poll syscall, just include the BSD version.
* sysdeps/unix/sysv/linux/getresuid.c: If compiled against a
kernel without the syscall, include the stub version.
* sysdeps/unix/sysv/linux/getresgid.c: Likewise.
* sysdeps/generic/getresuid.c: New file.
* sysdeps/generic/getresgid.c: New file.
1998-02-15 Ulrich Drepper <drepper@cygnus.com>
* stdio-common/vfscanf.c: Correct last change a bit.
Joseph Myers
Steve Ellcey
Stefan Liebler
Allan McRae
Paul Pluzhnikov
Paul Eggert
Ulrich Drepper
Jakub Jelinek
Andreas Jaeger