With only two exceptions (sys/types.h and sys/param.h, both of which
historically might have defined BYTE_ORDER) the public headers that
include <endian.h> only want to be able to test __BYTE_ORDER against
__*_ENDIAN.
This patch creates a new bits/endian.h that can be included by any
header that wants to be able to test __BYTE_ORDER and/or
__FLOAT_WORD_ORDER against the __*_ENDIAN constants, or needs
__LONG_LONG_PAIR. It only defines macros in the implementation
namespace.
The existing bits/endian.h (which could not be included independently
of endian.h, and only defines __BYTE_ORDER and maybe __FLOAT_WORD_ORDER)
is renamed to bits/endianness.h. I also took the opportunity to
canonicalize the form of this header, which we are stuck with having
one copy of per architecture. Since they are so short, this means git
doesn’t understand that they were renamed from existing headers, sigh.
endian.h itself is a nonstandard header and its only remaining use
from a standard header is guarded by __USE_MISC, so I dropped the
__USE_MISC conditionals from around all of the public-namespace things
it defines. (This means, an application that requests strict library
conformance but includes endian.h will still see the definition of
BYTE_ORDER.)
A few changes to specific bits/endian(ness).h variants deserve
mention:
- sysdeps/unix/sysv/linux/ia64/bits/endian.h is moved to
sysdeps/ia64/bits/endianness.h. If I remember correctly, ia64 did
have selectable endianness, but we have assembly code in
sysdeps/ia64 that assumes it’s little-endian, so there is no reason
to treat the ia64 endianness.h as linux-specific.
- The C-SKY port does not fully support big-endian mode, but I do
not think this is sufficient reason to make csky/bits/endian(ness).h
error out if __CSKYBE__ is defined, so it now defines __BYTE_ORDER
appropriately for whichever mode the compiler is in.
- The PowerPC port had extra logic in its bits/endian.h to detect a
broken compiler, which strikes me as unnecessary, so I removed it.
- The only files that defined __FLOAT_WORD_ORDER always defined it to
the same value as __BYTE_ORDER, so I removed those definitions.
The SH bits/endian(ness).h had comments inconsistent with the
actual setting of __FLOAT_WORD_ORDER, which I also removed.
- I *removed* copyright boilerplate from the few bits/endian(ness).h
headers that had it; these files record a single fact in a fashion
dictated by an external spec, so I do not think they are copyrightable.
As long as I was changing every copy of ieee754.h in the tree, I
noticed that only the MIPS variant includes float.h, because it uses
LDBL_MANT_DIG to decide among three different versions of
ieee854_long_double. This patch makes it not include float.h when
GCC’s intrinsic __LDBL_MANT_DIG__ is available.
* string/endian.h: Unconditionally define LITTLE_ENDIAN,
BIG_ENDIAN, PDP_ENDIAN, and BYTE_ORDER. Condition byteswapping
macros only on !__ASSEMBLER__. Move the definitions of
__BIG_ENDIAN, __LITTLE_ENDIAN, __PDP_ENDIAN, __FLOAT_WORD_ORDER,
and __LONG_LONG_PAIR to...
* string/bits/endian.h: ...this new file, which includes
the renamed header bits/endianness.h for the definition of
__BYTE_ORDER and possibly __FLOAT_WORD_ORDER.
* string/Makefile: Install bits/endianness.h.
* include/bits/endian.h: New wrapper.
* bits/endian.h: Rename to bits/endianness.h.
Add multiple-include guard. Rewrite the comment explaining what
the machine-specific variants of this file should do.
* sysdeps/unix/sysv/linux/ia64/bits/endian.h:
Move to sysdeps/ia64.
* sysdeps/aarch64/bits/endian.h
* sysdeps/alpha/bits/endian.h
* sysdeps/arm/bits/endian.h
* sysdeps/csky/bits/endian.h
* sysdeps/hppa/bits/endian.h
* sysdeps/ia64/bits/endian.h
* sysdeps/m68k/bits/endian.h
* sysdeps/microblaze/bits/endian.h
* sysdeps/mips/bits/endian.h
* sysdeps/nios2/bits/endian.h
* sysdeps/powerpc/bits/endian.h
* sysdeps/riscv/bits/endian.h
* sysdeps/s390/bits/endian.h
* sysdeps/sh/bits/endian.h
* sysdeps/sparc/bits/endian.h
* sysdeps/x86/bits/endian.h:
Rename to endianness.h; canonicalize form of file; remove
redundant definitions of __FLOAT_WORD_ORDER.
* sysdeps/csky/bits/endianness.h: Do not error out if __CSKYEB__
is defined.
* sysdeps/powerpc/bits/endianness.h: Remove logic to check for
broken compilers.
* ctype/ctype.h
* inet/netinet/in.h
* resolv/arpa/nameser_compat.h
* sysdeps/aarch64/nptl/bits/pthreadtypes-arch.h
* sysdeps/arm/nptl/bits/pthreadtypes-arch.h
* sysdeps/csky/nptl/bits/pthreadtypes-arch.h
* sysdeps/ia64/ieee754.h
* sysdeps/ieee754/ieee754.h
* sysdeps/ieee754/ldbl-128/ieee754.h
* sysdeps/ieee754/ldbl-128ibm/ieee754.h
* sysdeps/m68k/nptl/bits/pthreadtypes-arch.h
* sysdeps/microblaze/nptl/bits/pthreadtypes-arch.h
* sysdeps/mips/ieee754/ieee754.h
* sysdeps/mips/nptl/bits/pthreadtypes-arch.h
* sysdeps/nios2/nptl/bits/pthreadtypes-arch.h
* sysdeps/nptl/pthread.h
* sysdeps/riscv/nptl/bits/pthreadtypes-arch.h
* sysdeps/sh/nptl/bits/pthreadtypes-arch.h
* sysdeps/sparc/sparc32/ieee754.h
* sysdeps/unix/sysv/linux/generic/bits/stat.h
* sysdeps/unix/sysv/linux/generic/bits/statfs.h
* sysdeps/unix/sysv/linux/sys/acct.h
* wctype/bits/wctype-wchar.h:
Include bits/endian.h, not endian.h.
* sysdeps/unix/sysv/linux/hppa/pthread.h: Don’t include endian.h.
* sysdeps/mips/ieee754/ieee754.h: Use __LDBL_MANT_DIG__
in ifdefs, instead of LDBL_MANT_DIG. Only include float.h
when __LDBL_MANT_DIG__ is not predefined, in which case
define __LDBL_MANT_DIG__ to equal LDBL_MANT_DIG.
* scripts/check-obsolete-constructs.h: Remove most of the
whitelist entries for endian.h and float.h.
---
bits/endian.h | 13 -----
bits/endianness.h | 17 +++++++
ctype/ctype.h | 2 +-
include/bits/endian.h | 1 +
inet/netinet/in.h | 2 +-
resolv/arpa/nameser_compat.h | 2 +-
scripts/check-obsolete-constructs.py | 10 +---
string/Makefile | 3 +-
string/bits/endian.h | 48 +++++++++++++++++++
string/endian.h | 39 +++------------
sysdeps/aarch64/bits/endian.h | 30 ------------
sysdeps/aarch64/bits/endianness.h | 15 ++++++
sysdeps/aarch64/nptl/bits/pthreadtypes-arch.h | 2 +-
sysdeps/alpha/bits/endian.h | 7 ---
sysdeps/alpha/bits/endianness.h | 11 +++++
sysdeps/arm/bits/endian.h | 10 ----
sysdeps/arm/bits/endianness.h | 15 ++++++
sysdeps/arm/nptl/bits/pthreadtypes-arch.h | 2 +-
sysdeps/csky/bits/endian.h | 9 ----
sysdeps/csky/bits/endianness.h | 15 ++++++
sysdeps/csky/nptl/bits/pthreadtypes-arch.h | 2 +-
sysdeps/hppa/bits/endian.h | 7 ---
sysdeps/hppa/bits/endianness.h | 11 +++++
sysdeps/ia64/bits/endianness.h | 11 +++++
sysdeps/ia64/ieee754.h | 4 +-
sysdeps/ieee754/ieee754.h | 4 +-
sysdeps/ieee754/ldbl-128/ieee754.h | 4 +-
sysdeps/ieee754/ldbl-128ibm/ieee754.h | 4 +-
sysdeps/m68k/bits/endian.h | 7 ---
sysdeps/m68k/bits/endianness.h | 11 +++++
sysdeps/m68k/nptl/bits/pthreadtypes-arch.h | 2 +-
sysdeps/microblaze/bits/endian.h | 30 ------------
sysdeps/microblaze/bits/endianness.h | 15 ++++++
.../microblaze/nptl/bits/pthreadtypes-arch.h | 2 +-
sysdeps/mips/bits/endian.h | 15 ------
sysdeps/mips/bits/endianness.h | 16 +++++++
sysdeps/mips/ieee754/ieee754.h | 17 ++++---
sysdeps/mips/nptl/bits/pthreadtypes-arch.h | 2 +-
sysdeps/nios2/bits/endian.h | 12 -----
sysdeps/nios2/bits/endianness.h | 16 +++++++
sysdeps/nios2/nptl/bits/pthreadtypes-arch.h | 2 +-
sysdeps/nptl/pthread.h | 2 +-
sysdeps/powerpc/bits/endian.h | 36 --------------
sysdeps/powerpc/bits/endianness.h | 16 +++++++
sysdeps/riscv/bits/endian.h | 5 --
sysdeps/riscv/bits/endianness.h | 11 +++++
sysdeps/riscv/nptl/bits/pthreadtypes-arch.h | 2 +-
sysdeps/s390/bits/endian.h | 7 ---
sysdeps/s390/bits/endianness.h | 11 +++++
sysdeps/sh/bits/endian.h | 13 -----
sysdeps/sh/bits/endianness.h | 15 ++++++
sysdeps/sh/nptl/bits/pthreadtypes-arch.h | 2 +-
sysdeps/sparc/bits/endian.h | 12 -----
sysdeps/sparc/bits/endianness.h | 16 +++++++
sysdeps/sparc/sparc32/ieee754.h | 4 +-
sysdeps/unix/sysv/linux/generic/bits/stat.h | 2 +-
sysdeps/unix/sysv/linux/generic/bits/statfs.h | 2 +-
sysdeps/unix/sysv/linux/hppa/pthread.h | 1 -
sysdeps/unix/sysv/linux/ia64/bits/endian.h | 7 ---
sysdeps/unix/sysv/linux/powerpc/htm.h | 2 +-
sysdeps/unix/sysv/linux/sys/acct.h | 2 +-
sysdeps/x86/bits/endian.h | 7 ---
sysdeps/x86/bits/endianness.h | 11 +++++
wctype/bits/wctype-wchar.h | 2 +-
64 files changed, 330 insertions(+), 305 deletions(-)
delete mode 100644 bits/endian.h
create mode 100644 bits/endianness.h
create mode 100644 include/bits/endian.h
create mode 100644 string/bits/endian.h
delete mode 100644 sysdeps/aarch64/bits/endian.h
create mode 100644 sysdeps/aarch64/bits/endianness.h
delete mode 100644 sysdeps/alpha/bits/endian.h
create mode 100644 sysdeps/alpha/bits/endianness.h
delete mode 100644 sysdeps/arm/bits/endian.h
create mode 100644 sysdeps/arm/bits/endianness.h
delete mode 100644 sysdeps/csky/bits/endian.h
create mode 100644 sysdeps/csky/bits/endianness.h
delete mode 100644 sysdeps/hppa/bits/endian.h
create mode 100644 sysdeps/hppa/bits/endianness.h
create mode 100644 sysdeps/ia64/bits/endianness.h
delete mode 100644 sysdeps/m68k/bits/endian.h
create mode 100644 sysdeps/m68k/bits/endianness.h
delete mode 100644 sysdeps/microblaze/bits/endian.h
create mode 100644 sysdeps/microblaze/bits/endianness.h
delete mode 100644 sysdeps/mips/bits/endian.h
create mode 100644 sysdeps/mips/bits/endianness.h
delete mode 100644 sysdeps/nios2/bits/endian.h
create mode 100644 sysdeps/nios2/bits/endianness.h
delete mode 100644 sysdeps/powerpc/bits/endian.h
create mode 100644 sysdeps/powerpc/bits/endianness.h
delete mode 100644 sysdeps/riscv/bits/endian.h
create mode 100644 sysdeps/riscv/bits/endianness.h
delete mode 100644 sysdeps/s390/bits/endian.h
create mode 100644 sysdeps/s390/bits/endianness.h
delete mode 100644 sysdeps/sh/bits/endian.h
create mode 100644 sysdeps/sh/bits/endianness.h
delete mode 100644 sysdeps/sparc/bits/endian.h
create mode 100644 sysdeps/sparc/bits/endianness.h
delete mode 100644 sysdeps/unix/sysv/linux/ia64/bits/endian.h
delete mode 100644 sysdeps/x86/bits/endian.h
create mode 100644 sysdeps/x86/bits/endianness.h
deleted file mode 100644
new file mode 100644
@@ -0,0 +1,17 @@
+/* This file must be overridden for each supported CPU architecture.
+ It should define __BYTE_ORDER to one of the constants defined in
+ string/bits/endian.h, as appropriate for the machine in
+ question. If floating-point quantities are not stored in the
+ same byte order as integer quantities, it should also define
+ __FLOAT_WORD_ORDER as appropriate. */
+
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+#error "Machine byte order unknown."
+
+#endif /* bits/endianness.h */
@@ -36,7 +36,7 @@ __BEGIN_DECLS
endian). We define the bit value interpretations here dependent on the
machine's byte order. */
-# include <endian.h>
+# include <bits/endian.h>
# if __BYTE_ORDER == __BIG_ENDIAN
# define _ISbit(bit) (1 << (bit))
# else /* __BYTE_ORDER == __LITTLE_ENDIAN */
new file mode 100644
@@ -0,0 +1 @@
+#include <string/bits/endian.h>
@@ -380,9 +380,9 @@ extern uint32_t htonl (uint32_t __hostlong)
extern uint16_t htons (uint16_t __hostshort)
__THROW __attribute__ ((__const__));
-#include <endian.h>
/* Get machine dependent optimized versions of byte swapping functions. */
+#include <bits/endian.h>
#include <bits/byteswap.h>
#include <bits/uintn-identity.h>
@@ -29,7 +29,7 @@
#ifndef _ARPA_NAMESER_COMPAT_
#define _ARPA_NAMESER_COMPAT_
-#include <endian.h>
+#include <bits/endian.h>
/*%
* Structure for query header. The order of the fields is machine- and
@@ -511,7 +511,6 @@ HEADER_ALLOWED_INCLUDES = {
# mandated: inttypes.h -> stdint.h
# tgmath.h -> complex.h, math.h
# threads.h -> time.h
- "ctype.h": [ "endian.h" ],
"inttypes.h": [ "stdint.h" ],
"signal.h": [ "sys/ucontext.h" ],
"stdlib.h": [ "alloca.h", "sys/types.h" ],
@@ -557,7 +556,7 @@ HEADER_ALLOWED_INCLUDES = {
"netdb.h": [ "netinet/in.h", "rpc/netdb.h" ],
"arpa/inet.h": [ "netinet/in.h" ],
"net/if.h": [ "sys/socket.h", "sys/types.h" ],
- "netinet/in.h": [ "endian.h", "sys/socket.h" ],
+ "netinet/in.h": [ "sys/socket.h" ],
"netinet/tcp.h": [ "stdint.h", "sys/socket.h",
"sys/types.h" ],
@@ -570,7 +569,7 @@ HEADER_ALLOWED_INCLUDES = {
"envz.h": [ "argz.h", "errno.h" ],
"fts.h": [ "sys/types.h" ],
"gshadow.h": [ "paths.h" ],
- "ieee754.h": [ "endian.h", "float.h" ],
+ "ieee754.h": [ "float.h" ],
"lastlog.h": [ "utmp.h" ],
"libintl.h": [ "locale.h" ],
"link.h": [ "dlfcn.h", "elf.h", "sys/types.h" ],
@@ -651,7 +650,6 @@ HEADER_ALLOWED_INCLUDES = {
"arpa/nameser.h": [ "arpa/nameser_compat.h", "stdint.h",
"sys/param.h", "sys/types.h" ],
- "arpa/nameser_compat.h": [ "endian.h" ],
"net/ethernet.h": [ "stdint.h", "sys/types.h",
"net/if_ether.h" ],
"net/if_arp.h": [ "stdint.h", "sys/socket.h",
@@ -693,15 +691,11 @@ HEADER_ALLOWED_INCLUDES = {
"bits/fcntl.h": [ "sys/types.h" ],
"bits/ipc.h": [ "sys/types.h" ],
"bits/procfs.h": [ "signal.h", "sys/ucontext.h" ],
- "bits/pthreadtypes-arch.h": [ "endian.h" ],
"bits/sem.h": [ "sys/types.h" ],
"bits/socket.h": [ "sys/types.h" ],
- "bits/stat.h": [ "endian.h" ],
- "bits/statfs.h": [ "endian.h" ],
"bits/types/res_state.h": [ "netinet/in.h", "sys/types.h" ],
"bits/utmp.h": [ "paths.h", "sys/time.h", "sys/types.h" ],
"bits/utmpx.h": [ "paths.h", "sys/time.h" ],
- "bits/wctype-wchar.h": [ "endian.h" ],
}
# As above, but each group of whitelist entries is only used for
@@ -25,7 +25,8 @@ include ../Makeconfig
headers := string.h bits/string_fortified.h \
strings.h bits/strings_fortified.h \
byteswap.h bits/byteswap.h \
- endian.h bits/endian.h bits/uintn-identity.h \
+ endian.h bits/endian.h bits/endianness.h \
+ bits/uintn-identity.h \
memory.h argz.h envz.h
routines := strcat strchr strcmp strcoll strcpy strcspn \
new file mode 100644
@@ -0,0 +1,48 @@
+/* Copyright (C) 1992-2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _BITS_ENDIAN_H
+#define _BITS_ENDIAN_H 1
+
+/* Definitions for byte order, according to significance of bytes,
+ from low addresses to high addresses. The value is what you get by
+ putting '4' in the most significant byte, '3' in the second most
+ significant byte, '2' in the second least significant byte, and '1'
+ in the least significant byte, and then writing down one digit for
+ each byte, starting with the byte at the lowest address at the left,
+ and proceeding to the byte with the highest address at the right. */
+
+#define __LITTLE_ENDIAN 1234
+#define __BIG_ENDIAN 4321
+#define __PDP_ENDIAN 3412
+
+/* This file defines `__BYTE_ORDER' for the particular machine. */
+#include <bits/endianness.h>
+
+/* Some machines may need to use a different endianness for floating point
+ values. */
+#ifndef __FLOAT_WORD_ORDER
+# define __FLOAT_WORD_ORDER __BYTE_ORDER
+#endif
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+# define __LONG_LONG_PAIR(HI, LO) LO, HI
+#elif __BYTE_ORDER == __BIG_ENDIAN
+# define __LONG_LONG_PAIR(HI, LO) HI, LO
+#endif
+
+#endif /* bits/endian.h */
@@ -20,42 +20,15 @@
#include <features.h>
-/* Definitions for byte order, according to significance of bytes,
- from low addresses to high addresses. The value is what you get by
- putting '4' in the most significant byte, '3' in the second most
- significant byte, '2' in the second least significant byte, and '1'
- in the least significant byte, and then writing down one digit for
- each byte, starting with the byte at the lowest address at the left,
- and proceeding to the byte with the highest address at the right. */
-
-#define __LITTLE_ENDIAN 1234
-#define __BIG_ENDIAN 4321
-#define __PDP_ENDIAN 3412
-
-/* This file defines `__BYTE_ORDER' for the particular machine. */
+/* Get the definitions of __*_ENDIAN, __BYTE_ORDER, and __FLOAT_WORD_ORDER. */
#include <bits/endian.h>
-/* Some machines may need to use a different endianness for floating point
- values. */
-#ifndef __FLOAT_WORD_ORDER
-# define __FLOAT_WORD_ORDER __BYTE_ORDER
-#endif
+#define LITTLE_ENDIAN __LITTLE_ENDIAN
+#define BIG_ENDIAN __BIG_ENDIAN
+#define PDP_ENDIAN __PDP_ENDIAN
+#define BYTE_ORDER __BYTE_ORDER
-#ifdef __USE_MISC
-# define LITTLE_ENDIAN __LITTLE_ENDIAN
-# define BIG_ENDIAN __BIG_ENDIAN
-# define PDP_ENDIAN __PDP_ENDIAN
-# define BYTE_ORDER __BYTE_ORDER
-#endif
-
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-# define __LONG_LONG_PAIR(HI, LO) LO, HI
-#elif __BYTE_ORDER == __BIG_ENDIAN
-# define __LONG_LONG_PAIR(HI, LO) HI, LO
-#endif
-
-
-#if defined __USE_MISC && !defined __ASSEMBLER__
+#ifndef __ASSEMBLER__
/* Conversion interfaces. */
# include <bits/byteswap.h>
# include <bits/uintn-identity.h>
deleted file mode 100644
new file mode 100644
@@ -0,0 +1,15 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* AArch64 has selectable endianness. */
+#ifdef __AARCH64EB__
+# define __BYTE_ORDER __BIG_ENDIAN
+#else
+# define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
+
+#endif /* bits/endianness.h */
@@ -19,7 +19,7 @@
#ifndef _BITS_PTHREADTYPES_ARCH_H
#define _BITS_PTHREADTYPES_ARCH_H 1
-#include <endian.h>
+#include <bits/endian.h>
#ifdef __ILP32__
# define __SIZEOF_PTHREAD_ATTR_T 32
deleted file mode 100644
new file mode 100644
@@ -0,0 +1,11 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* Alpha is little-endian. */
+#define __BYTE_ORDER __LITTLE_ENDIAN
+
+#endif /* bits/endianness.h */
deleted file mode 100644
new file mode 100644
@@ -0,0 +1,15 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* ARM has selectable endianness. */
+#ifdef __ARMEB__
+#define __BYTE_ORDER __BIG_ENDIAN
+#else
+#define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
+
+#endif /* bits/endianness.h */
@@ -18,7 +18,7 @@
#ifndef _BITS_PTHREADTYPES_ARCH_H
#define _BITS_PTHREADTYPES_ARCH_H 1
-#include <endian.h>
+#include <bits/endian.h>
#define __SIZEOF_PTHREAD_ATTR_T 36
#define __SIZEOF_PTHREAD_MUTEX_T 24
deleted file mode 100644
new file mode 100644
@@ -0,0 +1,15 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* C-SKY has selectable endianness. */
+#ifdef __CSKYBE__
+# define __BYTE_ORDER __BIG_ENDIAN
+#else
+# define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
+
+#endif /* bits/endianness.h */
@@ -19,7 +19,7 @@
#ifndef _BITS_PTHREADTYPES_ARCH_H
#define _BITS_PTHREADTYPES_ARCH_H 1
-#include <endian.h>
+#include <bits/endian.h>
#define __SIZEOF_PTHREAD_ATTR_T 36
#define __SIZEOF_PTHREAD_MUTEX_T 24
deleted file mode 100644
new file mode 100644
@@ -0,0 +1,11 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* HP-PA is big-endian. */
+#define __BYTE_ORDER __BIG_ENDIAN
+
+#endif /* bits/endianness.h */
new file mode 100644
@@ -0,0 +1,11 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* IA64 is little-endian. */
+#define __BYTE_ORDER __LITTLE_ENDIAN
+
+#endif /* bits/endianness.h */
@@ -16,11 +16,11 @@
<http://www.gnu.org/licenses/>. */
#ifndef _IEEE754_H
-
#define _IEEE754_H 1
+
#include <features.h>
-#include <endian.h>
+#include <bits/endian.h>
__BEGIN_DECLS
@@ -16,11 +16,11 @@
<http://www.gnu.org/licenses/>. */
#ifndef _IEEE754_H
-
#define _IEEE754_H 1
+
#include <features.h>
-#include <endian.h>
+#include <bits/endian.h>
__BEGIN_DECLS
@@ -16,11 +16,11 @@
<http://www.gnu.org/licenses/>. */
#ifndef _IEEE754_H
-
#define _IEEE754_H 1
+
#include <features.h>
-#include <endian.h>
+#include <bits/endian.h>
__BEGIN_DECLS
@@ -16,11 +16,11 @@
<http://www.gnu.org/licenses/>. */
#ifndef _IEEE754_H
-
#define _IEEE754_H 1
+
#include <features.h>
-#include <endian.h>
+#include <bits/endian.h>
__BEGIN_DECLS
deleted file mode 100644
new file mode 100644
@@ -0,0 +1,11 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* m68k is big-endian. */
+#define __BYTE_ORDER __BIG_ENDIAN
+
+#endif /* bits/endianness.h */
@@ -19,7 +19,7 @@
#ifndef _BITS_PTHREADTYPES_ARCH_H
#define _BITS_PTHREADTYPES_ARCH_H 1
-#include <endian.h>
+#include <bits/endian.h>
#define __SIZEOF_PTHREAD_ATTR_T 36
#define __SIZEOF_PTHREAD_MUTEX_T 24
deleted file mode 100644
new file mode 100644
@@ -0,0 +1,15 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* MicroBlaze has selectable endianness. */
+#ifdef _BIG_ENDIAN
+# define __BYTE_ORDER __BIG_ENDIAN
+#else
+# define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
+
+#endif /* bits/endianness.h */
@@ -19,7 +19,7 @@
#ifndef _BITS_PTHREADTYPES_ARCH_H
# define _BITS_PTHREADTYPES_ARCH_H 1
-# include <endian.h>
+# include <bits/endian.h>
# define __SIZEOF_PTHREAD_ATTR_T 36
# define __SIZEOF_PTHREAD_MUTEX_T 24
deleted file mode 100644
new file mode 100644
@@ -0,0 +1,16 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* MIPS has selectable endianness. */
+#ifdef __MIPSEB
+# define __BYTE_ORDER __BIG_ENDIAN
+#endif
+#ifdef __MIPSEL
+# define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
+
+#endif /* bits/endianness.h */
@@ -16,13 +16,16 @@
<http://www.gnu.org/licenses/>. */
#ifndef _IEEE754_H
-
#define _IEEE754_H 1
+
#include <features.h>
-#include <endian.h>
+#include <bits/endian.h>
-#include <float.h>
+#ifndef __LDBL_MANT_DIG__
+# include <float.h>
+# define __LDBL_MANT_DIG__ LDBL_MANT_DIG
+#endif
__BEGIN_DECLS
@@ -127,7 +130,7 @@ union ieee754_double
#define IEEE754_DOUBLE_BIAS 0x3ff /* Added to exponent. */
-#if LDBL_MANT_DIG == 113
+#if __LDBL_MANT_DIG__ == 113
union ieee854_long_double
{
@@ -184,7 +187,7 @@ union ieee854_long_double
#define IEEE854_LONG_DOUBLE_BIAS 0x3fff /* Added to exponent. */
-#elif LDBL_MANT_DIG == 64
+#elif __LDBL_MANT_DIG__ == 64
union ieee854_long_double
{
@@ -253,7 +256,7 @@ union ieee854_long_double
#define IEEE854_LONG_DOUBLE_BIAS 0x3fff
-#elif LDBL_MANT_DIG == 53
+#elif __LDBL_MANT_DIG__ == 53
union ieee854_long_double
{
@@ -316,7 +319,7 @@ union ieee854_long_double
#define IEEE854_LONG_DOUBLE_BIAS 0x3ff /* Added to exponent. */
-#endif /* LDBL_MANT_DIG == 53 */
+#endif /* __LDBL_MANT_DIG__ == 53 */
__END_DECLS
@@ -19,7 +19,7 @@
#ifndef _BITS_PTHREADTYPES_ARCH_H
#define _BITS_PTHREADTYPES_ARCH_H 1
-#include <endian.h>
+#include <bits/endian.h>
#if _MIPS_SIM == _ABI64
# define __SIZEOF_PTHREAD_ATTR_T 56
deleted file mode 100644
new file mode 100644
@@ -0,0 +1,16 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* Nios II has selectable endianness. */
+#ifdef __nios2_big_endian__
+# define __BYTE_ORDER __BIG_ENDIAN
+#endif
+#ifdef __nios2_little_endian__
+# define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
+
+#endif /* bits/endianness.h */
@@ -19,7 +19,7 @@
#ifndef _BITS_PTHREADTYPES_ARCH_H
#define _BITS_PTHREADTYPES_ARCH_H 1
-#include <endian.h>
+#include <bits/endian.h>
#define __SIZEOF_PTHREAD_ATTR_T 36
#define __SIZEOF_PTHREAD_MUTEX_T 24
@@ -19,10 +19,10 @@
#define _PTHREAD_H 1
#include <features.h>
-#include <endian.h>
#include <sched.h>
#include <time.h>
+#include <bits/endian.h>
#include <bits/pthreadtypes.h>
#include <bits/setjmp.h>
#include <bits/wordsize.h>
deleted file mode 100644
new file mode 100644
@@ -0,0 +1,16 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* PowerPC has selectable endianness. */
+#if defined __BIG_ENDIAN__ || defined _BIG_ENDIAN
+# define __BYTE_ORDER __BIG_ENDIAN
+#endif
+#if defined __LITTLE_ENDIAN__ || defined _LITTLE_ENDIAN
+# define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
+
+#endif /* bits/endianness.h */
deleted file mode 100644
new file mode 100644
@@ -0,0 +1,11 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* RISC-V is little-endian. */
+#define __BYTE_ORDER __LITTLE_ENDIAN
+
+#endif /* bits/endianness.h */
@@ -19,7 +19,7 @@
#ifndef _BITS_PTHREADTYPES_ARCH_H
#define _BITS_PTHREADTYPES_ARCH_H 1
-#include <endian.h>
+#include <bits/endian.h>
#if __riscv_xlen == 64
# define __SIZEOF_PTHREAD_ATTR_T 56
deleted file mode 100644
new file mode 100644
@@ -0,0 +1,11 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* S/390 is big-endian. */
+#define __BYTE_ORDER __BIG_ENDIAN
+
+#endif /* bits/endianness.h */
deleted file mode 100644
new file mode 100644
@@ -0,0 +1,15 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* SH has selectable endianness. */
+#ifdef __LITTLE_ENDIAN__
+#define __BYTE_ORDER __LITTLE_ENDIAN
+#else
+#define __BYTE_ORDER __BIG_ENDIAN
+#endif
+
+#endif /* bits/endianness.h */
@@ -18,7 +18,7 @@
#ifndef _BITS_PTHREADTYPES_ARCH_H
#define _BITS_PTHREADTYPES_ARCH_H 1
-#include <endian.h>
+#include <bits/endian.h>
#define __SIZEOF_PTHREAD_ATTR_T 36
#define __SIZEOF_PTHREAD_MUTEX_T 24
deleted file mode 100644
new file mode 100644
@@ -0,0 +1,16 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* Sparc is big-endian, but v9 supports endian conversion on loads/stores
+ and GCC supports such a mode. Be prepared. */
+#ifdef __LITTLE_ENDIAN__
+# define __BYTE_ORDER __LITTLE_ENDIAN
+#else
+# define __BYTE_ORDER __BIG_ENDIAN
+#endif
+
+#endif /* bits/endianness.h */
@@ -16,11 +16,11 @@
<http://www.gnu.org/licenses/>. */
#ifndef _IEEE754_H
-
#define _IEEE754_H 1
+
#include <features.h>
-#include <endian.h>
+#include <bits/endian.h>
__BEGIN_DECLS
@@ -23,7 +23,7 @@
#ifndef _BITS_STAT_H
#define _BITS_STAT_H 1
-#include <endian.h>
+#include <bits/endian.h>
#include <bits/wordsize.h>
/* 64-bit libc uses the kernel's 'struct stat', accessed via the
@@ -20,7 +20,7 @@
# error "Never include <bits/statfs.h> directly; use <sys/statfs.h> instead."
#endif
-#include <endian.h>
+#include <bits/endian.h>
#include <bits/types.h>
#include <bits/wordsize.h>
@@ -19,7 +19,6 @@
#define _PTHREAD_H 1
#include <features.h>
-#include <endian.h>
#include <sched.h>
#include <time.h>
deleted file mode 100644
@@ -50,7 +50,7 @@
#else
-#include <endian.h>
+#include <bits/endian.h>
/* Official HTM intrinsics interface matching GCC, but works
on older GCC compatible compilers and binutils.
@@ -20,7 +20,7 @@
#include <sys/types.h>
#include <stdint.h>
-#include <endian.h>
+#include <bits/endian.h>
#include <bits/types/time_t.h>
__BEGIN_DECLS
deleted file mode 100644
new file mode 100644
@@ -0,0 +1,11 @@
+#ifndef _BITS_ENDIANNESS_H
+#define _BITS_ENDIANNESS_H 1
+
+#ifndef _BITS_ENDIAN_H
+# error "Never use <bits/endianness.h> directly; include <endian.h> instead."
+#endif
+
+/* i386/x86_64 are little-endian. */
+#define __BYTE_ORDER __LITTLE_ENDIAN
+
+#endif /* bits/endianness.h */
@@ -42,7 +42,7 @@ typedef unsigned long int wctype_t;
endian). We define the bit value interpretations here dependent on the
machine's byte order. */
-# include <endian.h>
+# include <bits/endian.h>
# if __BYTE_ORDER == __BIG_ENDIAN
# define _ISwbit(bit) (1 << (bit))
# else /* __BYTE_ORDER == __LITTLE_ENDIAN */