Information about whether the ABI of long double is the same as that
of double is split between bits/mathdef.h and bits/wordsize.h.
When the ABIs are the same, bits/mathdef.h defines
__NO_LONG_DOUBLE_MATH. In addition, in the case where the same glibc
binary supports both -mlong-double-64 and -mlong-double-128,
bits/wordsize.h defines __LONG_DOUBLE_MATH_OPTIONAL, along with
__NO_LONG_DOUBLE_MATH if this particular compilation is with
-mlong-double-64.
As part of the refactoring I proposed in
<https://sourceware.org/ml/libc-alpha/2016-11/msg00745.html>, this
patch puts all that information in a single header,
bits/long-double.h. It is included from sys/cdefs.h alongside the
include of bits/wordsize.h, so other headers generally do not need to
include bits/long-double.h directly.
Previously, various bits/mathdef.h headers and bits/wordsize.h headers
had this long double information (including implicitly in some
bits/mathdef.h headers through not having the defines present in the
default version). After the patch, it's all in six bits/long-double.h
headers. Furthermore, most of those new headers are not
architecture-specific. Architectures with optional long double all
use the ldbl-opt sysdeps directory, either in the order (ldbl-64-128,
ldbl-opt, ldbl-128) or (ldbl-128ibm, ldbl-opt). Thus a generic header
for the case where long double = double, and headers in ldbl-128,
ldbl-96 and ldbl-opt, suffices to cover every architecture except for
cases where long double properties vary between different ABIs sharing
a set of installed headers; fortunately all the ldbl-opt cases share a
single compiler-predefined macro __LONG_DOUBLE_128__ that can be used
to tell whether this compilation is -mlong-double-64 or
-mlong-double-128.
The two cases where a set of headers is shared between ABIs with
different long double properties, MIPS (o32 has long double = double,
other ABIs use ldbl-128) and SPARC (32-bit has optional long double,
64-bit has required long double), need their own bits/long-double.h
headers.
As with bits/wordsize.h, multiple-include protection for this header
is generally implicit through the include guards on sys/cdefs.h, and
multiple inclusion is harmless in any case. There is one subtlety:
the header must not define __LONG_DOUBLE_MATH_OPTIONAL if
__NO_LONG_DOUBLE_MATH was defined before its inclusion, because doing
so breaks how sysdeps/ieee754/ldbl-opt/nldbl-compat.h defines
__NO_LONG_DOUBLE_MATH itself before including system headers. Subject
to keeping that working, it would be reasonable to move these macros
from defined/undefined #ifdef to always-defined 1/0 #if semantics, but
this patch does not attempt to do so, just rearranges where the macros
are defined.
After this patch, the only use of bits/mathdef.h is the alpha one for
modifying complex function ABIs for old GCC. Thus, all versions of
the header other than the default and alpha versions are removed, as
is the include from math.h.
Tested for x86_64 and x86. Also did compilation-only testing with
build-many-glibcs.py.
* bits/long-double.h: New file.
* sysdeps/ieee754/ldbl-128/bits/long-double.h: Likewise.
* sysdeps/ieee754/ldbl-96/bits/long-double.h: Likewise.
* sysdeps/ieee754/ldbl-opt/bits/long-double.h: Likewise.
* sysdeps/mips/bits/long-double.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/long-double.h: Likewise.
* math/Makefile (headers): Add bits/long-double.h.
* misc/sys/cdefs.h: Include <bits/long-double.h>.
* stdlib/strtold.c: Include <bits/long-double.h> instead of
<bits/wordsize.h>.
* bits/mathdef.h [!_COMPLEX_H]: Do not allow inclusion.
[!__NO_LONG_DOUBLE_MATH]: Remove conditional code.
* math/math.h: Do not include <bits/mathdef.h>.
* sysdeps/aarch64/bits/mathdef.h: Remove file.
* sysdeps/alpha/bits/mathdef.h [!_COMPLEX_H]: Do not allow
inclusion.
* sysdeps/ia64/bits/mathdef.h: Remove file.
* sysdeps/m68k/m680x0/bits/mathdef.h: Likewise.
* sysdeps/mips/bits/mathdef.h: Likewise.
* sysdeps/powerpc/bits/mathdef.h: Likewise.
* sysdeps/s390/bits/mathdef.h: Likewise.
* sysdeps/sparc/bits/mathdef.h: Likewise.
* sysdeps/x86/bits/mathdef.h: Likewise.
* sysdeps/s390/s390-32/bits/wordsize.h
[!__NO_LONG_DOUBLE_MATH && !__LONG_DOUBLE_MATH_OPTIONAL]: Remove
conditional code.
* sysdeps/s390/s390-64/bits/wordsize.h
[!__NO_LONG_DOUBLE_MATH && !__LONG_DOUBLE_MATH_OPTIONAL]:
Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/wordsize.h
[!__NO_LONG_DOUBLE_MATH && !__LONG_DOUBLE_MATH_OPTIONAL]:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/wordsize.h
[!__NO_LONG_DOUBLE_MATH && !__LONG_DOUBLE_MATH_OPTIONAL]:
Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/wordsize.h
[!__NO_LONG_DOUBLE_MATH && !__LONG_DOUBLE_MATH_OPTIONAL]:
Likewise.
Continuing the refactoring of bits/mathdef.h, this patch stops it
defining FP_ILOGB0 and FP_ILOGBNAN, moving the required information to
a new header bits/fp-logb.h.
There are only two possible values of each of those macros permitted
by ISO C. TS 18661-1 adds corresponding macros for llogb, and their
values are required to correspond to those of the ilogb macros in the
obvious way. Thus two boolean values - for which the same choices are
correct for most architectures - suffice to determine the value of all
these macros, and by defining macros for those boolean values in
bits/fp-logb.h we can then define the public FP_* macros in math.h and
avoid the present duplication of the associated feature test macro
logic.
This patch duly moves to bits/fp-logb.h defining __FP_LOGB0_IS_MIN and
__FP_LOGBNAN_IS_MIN. Default definitions of those to 0 are correct
for both architectures, while ia64, m68k and x86 get their own
versions of bits/fp-logb.h to reflect their use of values different
from the defaults.
The patch renders many copies of bits/mathdef.h trivial (needed only
to avoid the default __NO_LONG_DOUBLE_MATH). I'll revise
<https://sourceware.org/ml/libc-alpha/2016-11/msg00865.html>
accordingly so that it removes all bits/mathdef.h headers except the
default one and the alpha one, and arranges for the header to be
included only by complex.h as the only remaining use at that point
will be for the alpha ABI issues there.
Tested for x86_64 and x86. Also did compile-only testing with
build-many-glibcs.py (using glibc sources from before the commit that
introduced many build failures with undefined __GI___sigsetjmp).
* bits/fp-logb.h: New file.
* sysdeps/ia64/bits/fp-logb.h: Likewise.
* sysdeps/m68k/m680x0/bits/fp-logb.h: Likewise.
* sysdeps/x86/bits/fp-logb.h: Likewise.
* math/Makefile (headers): Add bits/fp-logb.h.
* math/math.h: Include <bits/fp-logb.h>.
[__USE_ISOC99] (FP_ILOGB0): Define based on __FP_LOGB0_IS_MIN.
[__USE_ISOC99] (FP_ILOGBNAN): Define based on __FP_LOGBNAN_IS_MIN.
* bits/mathdef.h (FP_ILOGB0): Remove.
(FP_ILOGBNAN): Likewise.
* sysdeps/aarch64/bits/mathdef.h (FP_ILOGB0): Likewise.
(FP_ILOGBNAN): Likewise.
* sysdeps/alpha/bits/mathdef.h (FP_ILOGB0): Likewise.
(FP_ILOGBNAN): Likewise.
* sysdeps/ia64/bits/mathdef.h (FP_ILOGB0): Likewise.
(FP_ILOGBNAN): Likewise.
* sysdeps/m68k/m680x0/bits/mathdef.h (FP_ILOGB0): Likewise.
(FP_ILOGBNAN): Likewise.
* sysdeps/mips/bits/mathdef.h (FP_ILOGB0): Likewise.
(FP_ILOGBNAN): Likewise.
* sysdeps/powerpc/bits/mathdef.h (FP_ILOGB0): Likewise.
(FP_ILOGBNAN): Likewise.
* sysdeps/s390/bits/mathdef.h (FP_ILOGB0): Likewise.
(FP_ILOGBNAN): Likewise.
* sysdeps/sparc/bits/mathdef.h (FP_ILOGB0): Likewise.
(FP_ILOGBNAN): Likewise.
* sysdeps/x86/bits/mathdef.h (FP_ILOGB0): Likewise.
(FP_ILOGBNAN): Likewise.
At present, definitions of float_t and double_t are split among many
bits/mathdef.h headers.
For all but three architectures, these types are float and double.
Furthermore, if you assume __FLT_EVAL_METHOD__ to be defined, that
provides a more generic way of determining the correct values of these
typedefs. Defining these typedefs more generally based on
__FLT_EVAL_METHOD__ was previously proposed by Paul Eggert in
<https://sourceware.org/ml/libc-alpha/2012-02/msg00002.html>.
This patch refactors things in the way I proposed in
<https://sourceware.org/ml/libc-alpha/2016-11/msg00745.html>. A new
header bits/flt-eval-method.h defines a single macro,
__GLIBC_FLT_EVAL_METHOD, which is then used by math.h to define
float_t and double_t. The default is based on __FLT_EVAL_METHOD__
(although actually a default to 0 would have the same effect for
current ports, because ports where values other than 0 or 16 are
possible all have their own headers).
To avoid changing the existing semantics in any case, including for
compilers not defining __FLT_EVAL_METHOD__, architecture-specific
files are then added for m68k, s390, x86 which replicate the existing
semantics. At least with __FLT_EVAL_METHOD__ values possible with
GCC, there should be no change to the choices of float_t and double_t
for any supported configuration.
Architecture maintainer notes:
* m68k: sysdeps/m68k/m680x0/bits/flt-eval-method.h always defines
__GLIBC_FLT_EVAL_METHOD to 2 to replicate the existing logic. But
actually GCC defines __FLT_EVAL_METHOD__ to 0 if TARGET_68040. It
might make sense to make the header prefer to base things on
__FLT_EVAL_METHOD__ if defined, like the x86 version, and so make
the choices of these types more accurate (with a NEWS entry as for
the other changes to these types on particular architectures).
* s390: sysdeps/s390/bits/flt-eval-method.h always defines
__GLIBC_FLT_EVAL_METHOD to 1 to replicate the existing logic. As
previously discussed, it might make sense in coordination with GCC
to eliminate the historic mistake, avoid excess precision in the
-fexcess-precision=standard case and make the typedefs match (with a
NEWS entry, again).
Tested for x86-64 and x86. Also did compilation-only testing with
build-many-glibcs.py.
* bits/flt-eval-method.h: New file.
* sysdeps/m68k/m680x0/bits/flt-eval-method.h: Likewise.
* sysdeps/s390/bits/flt-eval-method.h: Likewise.
* sysdeps/x86/bits/flt-eval-method.h: Likewise.
* math/Makefile (headers): Add bits/flt-eval-method.h.
* math/math.h: Include <bits/flt-eval-method.h>.
[__USE_ISOC99] (float_t): Define based on __GLIBC_FLT_EVAL_METHOD.
[__USE_ISOC99] (double_t): Likewise.
* bits/mathdef.h (float_t): Remove.
(double_t): Likewise.
* sysdeps/aarch64/bits/mathdef.h (float_t): Likewise.
(double_t): Likewise.
* sysdeps/alpha/bits/mathdef.h (float_t): Likewise.
(double_t): Likewise.
* sysdeps/arm/bits/mathdef.h (float_t): Likewise.
(double_t): Likewise.
* sysdeps/hppa/fpu/bits/mathdef.h (float_t): Likewise.
(double_t): Likewise.
* sysdeps/ia64/bits/mathdef.h (float_t): Likewise.
(double_t): Likewise.
* sysdeps/m68k/m680x0/bits/mathdef.h (float_t): Likewise.
(double_t): Likewise.
* sysdeps/mips/bits/mathdef.h (float_t): Likewise.
(double_t): Likewise.
* sysdeps/powerpc/bits/mathdef.h (float_t): Likewise.
(double_t): Likewise.
* sysdeps/s390/bits/mathdef.h (float_t): Likewise.
(double_t): Likewise.
* sysdeps/sh/sh4/bits/mathdef.h (float_t): Likewise.
(double_t): Likewise.
* sysdeps/sparc/bits/mathdef.h (float_t): Likewise.
(double_t): Likewise.
* sysdeps/tile/bits/mathdef.h (float_t): Likewise.
(double_t): Likewise.
* sysdeps/x86/bits/mathdef.h (float_t): Likewise.
(double_t): Likewise.
It was noted in
<https://sourceware.org/ml/libc-alpha/2012-09/msg00305.html> that the
bits/*.h naming scheme should only be used for installed headers.
This patch renames bits/atomic.h to atomic-machine.h to follow that
convention.
This is the only change in this series that needs to change the
filename rather than simply removing a directory level (because both
atomic.h and bits/atomic.h exist at present).
Tested for x86_64 (testsuite, and that installed stripped shared
libraries are unchanged by the patch).
[BZ #14912]
* sysdeps/aarch64/bits/atomic.h: Move to ...
* sysdeps/aarch64/atomic-machine.h: ...here.
(_AARCH64_BITS_ATOMIC_H): Rename macro to
_AARCH64_ATOMIC_MACHINE_H.
* sysdeps/alpha/bits/atomic.h: Move to ...
* sysdeps/alpha/atomic-machine.h: ...here.
* sysdeps/arm/bits/atomic.h: Move to ...
* sysdeps/arm/atomic-machine.h: ...here. Update comments.
* bits/atomic.h: Move to ...
* sysdeps/generic/atomic-machine.h: ...here.
(_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H.
* sysdeps/i386/bits/atomic.h: Move to ...
* sysdeps/i386/atomic-machine.h: ...here.
* sysdeps/ia64/bits/atomic.h: Move to ...
* sysdeps/ia64/atomic-machine.h: ...here.
* sysdeps/m68k/coldfire/bits/atomic.h: Move to ...
* sysdeps/m68k/coldfire/atomic-machine.h: ...here.
(_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H.
* sysdeps/m68k/m680x0/m68020/bits/atomic.h: Move to ...
* sysdeps/m68k/m680x0/m68020/atomic-machine.h: ...here.
* sysdeps/microblaze/bits/atomic.h: Move to ...
* sysdeps/microblaze/atomic-machine.h: ...here.
* sysdeps/mips/bits/atomic.h: Move to ...
* sysdeps/mips/atomic-machine.h: ...here.
(_MIPS_BITS_ATOMIC_H): Rename macro to _MIPS_ATOMIC_MACHINE_H.
* sysdeps/powerpc/bits/atomic.h: Move to ...
* sysdeps/powerpc/atomic-machine.h: ...here. Update comments.
* sysdeps/powerpc/powerpc32/bits/atomic.h: Move to ...
* sysdeps/powerpc/powerpc32/atomic-machine.h: ...here. Update
comments. Include <atomic-machine.h> instead of <bits/atomic.h>.
* sysdeps/powerpc/powerpc64/bits/atomic.h: Move to ...
* sysdeps/powerpc/powerpc64/atomic-machine.h: ...here. Include
<atomic-machine.h> instead of <bits/atomic.h>.
* sysdeps/s390/bits/atomic.h: Move to ...
* sysdeps/s390/atomic-machine.h: ...here.
* sysdeps/sparc/sparc32/bits/atomic.h: Move to ...
* sysdeps/sparc/sparc32/atomic-machine.h: ...here.
(_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H.
* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h: Move to ...
* sysdeps/sparc/sparc32/sparcv9/atomic-machine.h: ...here.
* sysdeps/sparc/sparc64/bits/atomic.h: Move to ...
* sysdeps/sparc/sparc64/atomic-machine.h: ...here.
* sysdeps/tile/bits/atomic.h: Move to ...
* sysdeps/tile/atomic-machine.h: ...here.
* sysdeps/tile/tilegx/bits/atomic.h: Move to ...
* sysdeps/tile/tilegx/atomic-machine.h: ...here. Include
<sysdeps/tile/atomic-machine.h> instead of
<sysdeps/tile/bits/atomic.h>.
(_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H.
* sysdeps/tile/tilepro/bits/atomic.h: Move to ...
* sysdeps/tile/tilepro/atomic-machine.h: ...here. Include
<sysdeps/tile/atomic-machine.h> instead of
<sysdeps/tile/bits/atomic.h>.
(_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H.
* sysdeps/unix/sysv/linux/arm/bits/atomic.h: Move to ...
* sysdeps/unix/sysv/linux/arm/atomic-machine.h: ...here. Include
<sysdeps/arm/atomic-machine.h> instead of
<sysdeps/arm/bits/atomic.h>.
* sysdeps/unix/sysv/linux/hppa/bits/atomic.h: Move to ...
* sysdeps/unix/sysv/linux/hppa/atomic-machine.h: ...here.
(_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H.
* sysdeps/unix/sysv/linux/m68k/coldfire/bits/atomic.h: Move to ...
* sysdeps/unix/sysv/linux/m68k/coldfire/atomic-machine.h: ...here.
(_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H.
* sysdeps/unix/sysv/linux/nios2/bits/atomic.h: Move to ...
* sysdeps/unix/sysv/linux/nios2/atomic-machine.h: ...here.
(_NIOS2_BITS_ATOMIC_H): Rename macro to _NIOS2_ATOMIC_MACHINE_H.
* sysdeps/unix/sysv/linux/sh/bits/atomic.h: Move to ...
* sysdeps/unix/sysv/linux/sh/atomic-machine.h: ...here.
* sysdeps/x86_64/bits/atomic.h: Move to ...
* sysdeps/x86_64/atomic-machine.h: ...here.
* include/atomic.h: Include <atomic-machine.h> instead of
<bits/atomic.h>.
This sets __HAVE_64B_ATOMICS if provided. It also sets
USE_ATOMIC_COMPILER_BUILTINS to true if the existing atomic ops use the
__atomic* builtins (aarch64, mips partially) or if this has been
tested (x86_64); otherwise, this is set to false so that C11 atomics will
be based on the existing atomic operations.
Also fixed the following whitespace nits to satisfy the push:
sysdeps/alpha/alphaev6/memset.S:142: space before tab in indent.
sysdeps/alpha/configure:1: new blank line at EOF.
sysdeps/alpha/fpu/e_sqrt.c:126: space before tab in indent.
sysdeps/alpha/preconfigure:1: new blank line at EOF.
sysdeps/unix/sysv/linux/alpha/syscalls.list:1: new blank line at EOF.
* math/multc3.c: New file.
* sysdeps/unix/sysv/linux/sparc/sparc32/Makefile
[$(subdir) = math] (libm-routines): Add multc3, divtc3.
* sysdeps/unix/sysv/linux/sparc/sparc32/fpu/Implies: New file.
* sysdeps/sparc/sparc32/fpu/s_fabsl.c: Include math.h and
math_ldbl_opt.h.
(fabsl): Use long_double_symbol instead of weak_alias.
* sysdeps/sparc/sparc32/fpu/s_fabs.c: Include math.h and
math_ldbl_opt.h.
[LONG_DOUBLE_COMPAT] (fabsl): Add compat_symbol.
2006-01-31 Martin Schwidefsky <schwidefsky@de.ibm.com>
Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/s390/Implies: New file.
* sysdeps/unix/sysv/linux/s390/fpu/Implies: New file.
* sysdeps/unix/sysv/linux/s390/nldbl-abi.h: New file.
* sysdeps/s390/fpu/bits/mathinline.h (signbitl, sqrtl): New inlines.
* sysdeps/s390/bits/mathdef.h: New file.
* sysdeps/s390/fpu/e_sqrtl.c: New file.
* sysdeps/s390/s390-32/bits/wordsize.h (__LONG_DOUBLE_MATH_OPTIONAL,
__NO_LONG_DOUBLE_MATH): Define.
* sysdeps/s390/s390-64/bits/wordsize.h: Likewise.
* sysdeps/s390/Implies: Add ieee754/ldbl-128.
* sysdeps/s390/ldbl2mpn.c: File removed.
* sysdeps/s390/fpu/libm-test-ulps: Updated.
2006-01-31 Roland McGrath <roland@redhat.com>
* sysdeps/alpha/fpu/bits/mathdef.h: Moved to ...
* sysdeps/alpha/bits/mathdef.h: ... here.
* sysdeps/i386/fpu/bits/mathdef.h: Moved to ...
* sysdeps/i386/bits/mathdef.h: ... here.
* sysdeps/mips/fpu/bits/mathdef.h: Moved to ...
* sysdeps/mips/bits/mathdef.h: ... here.
* sysdeps/m68k/fpu/bits/mathdef.h: Moved to ...
* sysdeps/m68k/bits/mathdef.h: ... here.
* sysdeps/powerpc/fpu/bits/mathdef.h: Moved to ...
* sysdeps/powerpc/bits/mathdef.h: ... here.
* sysdeps/sparc/fpu/bits/mathdef.h: Moved to ...
* sysdeps/sparc/bits/mathdef.h: ... here.
* sysdeps/ia64/fpu/bits/mathdef.h: Moved to ...
* sysdeps/ia64/bits/mathdef.h: ... here.
* sysdeps/sh/sh4/fpu/bits/mathdef.h: Moved to ...
* sysdeps/sh/sh4/bits/mathdef.h: ... here.
* sysdeps/x86_64/fpu/bits/mathdef.h: Moved to ...
* sysdeps/x86_64/bits/mathdef.h: ... here.
2006-01-31 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/alpha/sysdep.h: Select inline_syscall_r0_asm
based on HAVE___THREAD instead of USE_TLS.
* sysdeps/unix/sysv/linux/alpha/adjtime.c (ADJTIMEX32): New.
(__adjtimex_tv64): Use it.
* sysdeps/unix/sysv/linux/alpha/semctl.c (__new_semctl): Cast
to void* rather than directly to the compatibility structure type.
* sysdeps/unix/sysv/linux/alpha/shmctl.c (__new_shmctl): Likewise.
* sysdeps/unix/sysv/linux/alpha/sigaction.c (struct kernel_sigaction):
Forward declare.
* sysdeps/alpha/bits/atomic.h (__arch_compare_and_exchange_xxx_8_int):
Cast old up to uint64_t before back down to inner width.
(__arch_compare_and_exchange_xxx_16_int): Likewise.
(__arch_compare_and_exchange_xxx_32_int): Likewise.
(__arch_compare_and_exchange_xxx_64_int): Likewise.
(__arch_compare_and_exchange_val_8_int): Cast result to
the type of the memory.
(__arch_compare_and_exchange_val_16_int): Likewise.
(__arch_compare_and_exchange_val_32_int): Likewise.
(__arch_compare_and_exchange_val_64_int): Likewise.
(atomic_compare_and_exchange_bool_acq): Use __atomic_bool_bysize.
(atomic_compare_and_exchange_bool_rel): Likewise.
* sysdeps/unix/alpha/sysdep.h: Select inline_syscall_r0_asm
based on HAVE___THREAD instead of USE_TLS.
* sysdeps/unix/sysv/linux/alpha/adjtime.c (ADJTIMEX32): New.
(__adjtimex_tv64): Use it.
* sysdeps/unix/sysv/linux/alpha/semctl.c (__new_semctl): Cast
to void* rather than directly to the compatibility structure type.
* sysdeps/unix/sysv/linux/alpha/shmctl.c (__new_shmctl): Likewise.
* sysdeps/unix/sysv/linux/alpha/sigaction.c (struct kernel_sigaction):
Forward declare.
2004-01-13 Richard Henderson <rth@redhat.com>
Paolo Bonzini <bonzini@gnu.org>
Compare the node sets after all the other comparisons.
the old thread-m.h header too.
* sysdeps/alpha/bits/atomic.h (__arch_compare_and_exchange_bool_*_int):
Invert the sense of the return value.
(__arch_exchange_16_int): Fix paste-o.
(__arch_exchange_{32,64}_int): Fix think-o.
* sysdeps/unix/sysv/linux/alpha/clone.S: Load child_tid properly.
2003-06-30 Richard Henderson <rth@redhat.com>
2003-04-11 Ulrich Drepper <drepper@redhat.com>
* sysdeps/generic/libc-start.c: Cleanup MAIN_AUXVEC_ARG handling.
Remove HAVE_CANCELBUF code. Replace with code using the new
initializers for unwind-based cleanup handling.
* sysdeps/generic/unwind.h: Update from latest gcc version.
* sysdeps/unix/sysv/linux/i386/sysdep.h: Define labels in a few
places to allow unwind data generation.
* sysdeps/i386/bits/setjmp.h: Allow file to be included multiple times.
* sysdeps/x86_64/bits/setjmp.h: Likewise.
* sysdeps/sh/bits/setjmp.h: Likewise.
* sysdeps/powerpc/bits/setjmp.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/setjmp.h: Likewise.
* sysdeps/alpha/bits/setjmp.h: Likewise.
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.
1997-09-11 04:36 Ulrich Drepper <drepper@cygnus.com>
* db2/db_int.h: Define __set_errno if not yet available.
* db2/btree/bt_rec.c: Use __set_errno to set errno value.
* db2/clib/getlong.c: Likewise.
* db2/db185/db185.c: Likewise.
* db2/db185/db185_int.h: Likewise.
* db2/dbm/dbm.c: Likewise.
* db2/lock/lock_deadlock.c: Likewise.
* db2/log/log_archive.c: Likewise.
* elf/dl-profile.c: Implement mcount function.
* gmon/gmon.c: Use __profil not profil because of namespace pollution.
* gmon/mcount.c: Remove BSD kernel code.
Use compare&swap instruction if possible to change state variable.
Optimize frompc folding.
* gmon/sys/gmon.h (struct gmonparam): Change state field to long int.
* sysdeps/i386/i486/atomicity.h: New file.
* sysdeps/stub/atomicity.h: New file.
* sysdeps/mach/hurd/profil.c: Define function as __profil and make
profil weak alias.
* sysdeps/posix/profil.c: Likewise.
* string/bits/string2.h: New file.
* include/bits/string2.h: New file.
* string/Makefile (routines): Add mempcpy.
(tests): Add inl-tester.
Remove _D__NO_STRING_INLINES from CFLAGS-* variables.
* sysdeps/generic/mempcpy.c: New file.
* sysdeps/generic/memccpy.c: Undef function name to enable definition
as macro.
* sysdeps/generic/memchr.c: Likewise.
* sysdeps/generic/memcmp.c: Likewise.
* sysdeps/generic/memmem.c: Likewise.
* sysdeps/generic/memmove.c: Likewise.
* sysdeps/generic/strcat.c: Likewise.
* sysdeps/generic/strchr.c: Likewise.
* sysdeps/generic/strcmp.c: Likewise.
* sysdeps/generic/strcpy.c: Likewise.
* sysdeps/generic/strcspn.c: Likewise.
* sysdeps/generic/strlen.c: Likewise.
* sysdeps/generic/strncat.c: Likewise.
* sysdeps/generic/strncmp.c: Likewise.
* sysdeps/generic/strncpy.c: Likewise.
* sysdeps/generic/strpbrk.c: Likewise.
* sysdeps/generic/strrchr.c: Likewise.
* sysdeps/generic/strsep.c: Likewise.
* sysdeps/generic/strspn.c: Likewise.
* sysdeps/generic/strstr.c: Likewise.
* sysdeps/generic/strtok.c: Likewise.
* sysdeps/generic/strtok_r.c: Likewise.
* sysdeps/i386/memset.c: Likewise.
* sysdeps/i386/bits/string.h: Correct a few types and constraints.
* sysdeps/i386/i486/bits/string.h: Heavy rewrites and optimizations.
* string/stratcliff.c: Undefine __USE_STRING_INLINES.
* string/tst-strlen.c: Likewise.
* string/string.h: Add prototype for mempcpy. Include bits/string2.h
header always if optimizing.
* intl/dcgettext.c: Don't unconditionally define stpcpy, only if not
yet defined.
* intl/l10nflist.c: Likewise.
* string/tester.c: Add copyright and make little cleanups.
* inet/test_ifindex.c: Change type of ni variable to unsigned int.
* locale/programs/ld-ctype.c (struct locale_ctype_t): Change type
of fields map_collection_max and map_collection_act to size_t.
* nss/libnss_files.map: Group entries.
* posix/unistd.h: Add prototype for __setpgid and __profil.
* sysdeps/generic/crypt.h: Declare __crypt_r.
* sysdeps/i386/bits/select.h: Fix fatal bugs, use correct casts now.
* sysdeps/i386/fpu/bits/mathinline.h (isgreater, isgreaterequal,
isless, islessequal, islessgreater, isunordered): Optimize a bit.
* sysdeps/stub/ftruncate.c: Include missing header for prototype.
* sysdeps/stub/getdents.c: Likewise.
* sysdeps/stub/reboot.c: Likewise.
* sysdeps/stub/swapon.c: Likewise.
* sysdeps/stub/syscall.c: Likewise.
* sysdeps/stub/ualarm.c: Likewise.
* sysdeps/stub/usleep.c: Likewise.
* sysdeps/unix/sysv/linux/if_index.c: Don't compile or use opensock
if SIOGIFINDEX and SIOGIFNAME are not defined.
* sysdeps/unix/sysv/linux/net/if.h: Add IFF_PORTSEL and IFF_AUTOMEDIA
according to recent kernel changes.
1997-09-10 21:32 Klaus Espenlaub <kespenla@student.informatik.uni-ulm.de>
* Makeconfig: Use $(have-initfini) instead of $(elf) to figure out
the installed name of the startup code.
(common-generated): Add version.mk.
* Makefile (distclean-1): Add glibcbug.
* Makerules: Replace -lgcc by $(gnulib).
* catgets/Makefile (generated): Add xmalloc.o.
* csu/Makefile (generated): Replace align.h and end.h by defs.h to
match the generated file.
* manual/Makefile (mostlyclean): Add stub-manual and stamp.o.
(realclean): Changed to remove chapters-incl[12].
* po/Makefile (realclean): New rule to remove the generated .mo files.
* time/Makefile: Only include zonefile dependencies if $(no_deps) is
not true to avoid make clean failure when directory time doesn't exist
yet.
(generated): Add tzselect.
* stdio/fgets.c (fgets): Add casts to reduce gcc warning noise.
* stdio/internals.c (flushbuf): Likewise.
* stdio/linewrap.c (lwupdate): Likewise.
* stdio/memstream.c (enlarge_buffer): Likewise.
* stdio-common/vfscanf.c (_IO_vfscanf): Likewise.
* time/tzset.c (compute_change): Likewise.
* misc/init-misc.c (__init_misc): Only declare static if HAVE_GNU_LD
is defined.
* sysdeps/posix/pipestream.c (FUNC): Change to generate ANSI C style
functions.
* sysdeps/stub/init-posix.c: Likewise.
* sysdeps/stub/profil.c: Likewise.
* munch-tmpl.c (__libc_init): Convert to ANSI C style declaration to
reduce gcc warning noise.
* stdio/glue.c (_filbuf, _flsbuf): Likewise.
* stdio/obstream.c (grow, seek, input, init_obstream): Likewise.
* stdio/vasprintf.c (enlarge_buffer): Likewise.
* sysdeps/generic/sysd-stdio.c (__stdio_read, __stdio_write,
__stdio_seek, __stdio_close, __stdio_fileno, __stdio_open,
__stdio_reopen): Likewise.
* sysdeps/posix/defs.c (_cleanup): Likewise.
* time/offtime.c (__offtime): Add cast.
* posix/getopt.c: Don't use text_set_element if not defined.
* configure.in: Provide a check for underscores before user labels
that works even when the compiler used for building doesn't work
(like when there is no C library). Use the old way if the compiler
works.
1997-09-10 05:08 David S. Miller <davem@caip.rutgers.edu>
* sysdeps/unix/sysv/linux/sparc/bits/ioctls.h: The TC* ioctls use
'T' not 't' on SparcLinux.
* sysdeps/unix/sysv/linux/sparc/bits/termios.h: tcflag_t is 32 bits.
* sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S: Add aliases for
_longjmp and siglongjmp.
1997-09-09 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* libio/stdio.h: Add format attributes to the extra printf and
scanf like functions.
* stdio/stdio.h: Likewise.
1997-09-09 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* nis/nss_nisplus/nisplus-network.c (_nss_nisplus_getnetbyaddr_r):
Print tablename_val, not tablename_len.
* nis/nss_nisplus/nisplus-ethers.c (_nss_nisplus_getntohost_r):
Use sprintf instead of sprintf, the string always fits.
* nis/nss_nisplus/nisplus-hosts.c (_nss_nisplus_gethostbyaddr_r):
Likewise.
* nis/nss_nisplus/nisplus-network.c (_nss_nisplus_getnetbyaddr_r):
Likewise.
* nis/nss_nisplus/nisplus-proto.c
(_nss_nisplus_getprotobynumber_r): Likewise.
* nis/nss_nisplus/nisplus-rpc.c (_nss_nisplus_getrpcbynumber_r):
Likewise.
* nis/nss_nisplus/nisplus-service.c
(_nss_nisplus_getservbynumber_r): Likewise.
* nis/nss_nisplus/nisplus-alias.c (_nss_create_tablename): Use
__stpcpy, __stpncpy and __strdup instead of public names.
* nis/nss_nisplus/nisplus-ethers.c (_nss_create_tablename):
Likewise.
* nis/nss_nisplus/nisplus-grp.c (_nss_create_tablename): Likewise.
* nis/nss_nisplus/nisplus-hosts.c (_nss_create_tablename):
Likewise.
* nis/nss_nisplus/nisplus-netgrp.c (_nss_nisplus_parse_netgroup):
Likewise.
* nis/nss_nisplus/nisplus-network.c (_nss_nisplus_parse_netent):
Likewise.
(_nss_create_tablename): Likewise.
* nis/nss_nisplus/nisplus-proto.c (_nss_nisplus_parse_protoent):
Likewise.
(_nss_create_tablename): Likewise.
* nis/nss_nisplus/nisplus-pwd.c (_nss_create_tablename):
Likewise.
* nis/nss_nisplus/nisplus-rpc.c (_nss_nisplus_parse_rpcent):
Likewise.
(_nss_create_tablename): Likewise.
* nis/nss_nisplus/nisplus-service.c (_nss_nisplus_parse_servent):
Likewise.
(_nss_create_tablename): Likewise.
* nis/nss_nisplus/nisplus-spwd.c (_nss_create_tablename):
Likewise.
* libc.map: Export __stpcpy and __strdup.
1997-09-09 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* math/Makefile (CFLAGS-test-float.c, CFLAGS-test-double.c,
CFLAGS-test-ldouble.c): Pass -ffloat-store to avoid excessive
precision.
1997-09-09 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* include/rpc/auth_des.h: New file.
1997-09-09 Paul Eggert <eggert@twinsun.com>
* time/mktime.c (__mktime_internal): Declare sec_requested even if
!LEAP_SECONDS_POSSIBLE, since it's needed at the end when checking
for time_t overflow.
1997-09-09 22:11 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/posix/getcwd.c: Correct test for too small buffer.
Reported by Erik Troan <ewt@redhat.com>.
* elf/dl-close.c: Include <bits/libc-lock.h>, not <libc-lock.h>.
* elf/dl-open.c: Likewise.
1997-09-07 17:09 Richard Henderson <rth@cygnus.com>
* sysdeps/alpha/Makefile: Kill setjmp_aux.
* sysdeps/alpha/bits/setjmp.h: Rewrite in terms of an array.
* sysdeps/alpha/__longjmp.c: Remove.
* sysdeps/alpha/setjmp_aux.c: Remove.
* sysdeps/alpha/__longjmp.S: New file.
* sysdeps/alpha/bsd-_setjmp.S: Stub out.
* sysdeps/alpha/bsd-setjmp.S: Likewise.
* sysdeps/alpha/setjmp.S: Do the work; don't call __setjmp_aux.
Move _setjmp and setjmp from bsd-*.S.
1997-09-06 20:20 Ulrich Drepper <drepper@cygnus.com>
* include/rpc/auth.h: New file.
* include/rpc/auth_unix.h: New file.
1997-09-06 Paul Eggert <eggert@twinsun.com>
Fix gmtime so that it reports leap seconds when TZ
indicates that leap seconds are desired.
* time/gmtime.c (<stddef.h>): Remove unnecessary include.
(gmtime): Put after gmtime_r, to help the compiler inline.
(__tz_convert): New decl.
(gmtime_r): Use __tz_convert instead of __offtime,
so that leap seconds are handled correctly.
* time/localtime.c (<errno.h>, <libc-lock.h>): Remove includes that
are now unnecessary.
(__tzset_internal, __tz_compute, __tzfile_compute, __use_tzfile,
__tzset_lock): Remove extern decls that are now unnecessary.
(localtime_internal): Moved to __tz_convert in tzset.c.
so that localtime and gmtime can both use it easily.
(localtime): Put after localtime_r, to help the compiler inline.
(localtime_r): Use __tz_convert instead of localtime_internal.
* time/strftime.c (__tz_compute): Remove unused (and now incorrect)
decl.
* time/tzfile.c (__tzfile_compute): New arg USE_LOCALTIME.
* time/tzset.c (<errno.h>): Include.
(_tmbuf): New decl.
(__tzfile_compute): New function.
(tz_compute): Renamed from __tz_compute. No longer extern.
Remove redundant call to tzset_internal.
(tzset_internal): Renamed from __tzset_internal. No longer extern.
(tzset_lock): Renamed from __tzset_lock. No longer extern.
(__tz_convert): New function, containing functionality of old
localtime_internal function, plus locking and optional UTC.
1997-09-06 Paul Eggert <eggert@twinsun.com>
* time/tzfile.c (__tzfile_read): Don't read a file if TZ is the empty
string, just use UTC without leap seconds. This is for compatibility
with the Olson code.
1997-09-06 Paul Eggert <eggert@twinsun.com>
* time/tzset.c (__tzname_max): Lock tz data structures before
invoking tzset_internal.
* time/tzfile.c: Define compute_tzname_max statically.
1997-09-07 10:57 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
* nis/nis_call.c: Remove not longer necessary HAVE_SECURE_RPC ifdefs.
* nis/nis_intern.h: Likewise.
* nis/nss_nis/nis-publickey.c: Likewise.
* nis/nss_nisplus/nisplus-publickey.c: Likewise.
* nis/ypclnt.c: Likewise.
* sunrpc/auth_des.c: Don't dereference NULL pointer,
initialize ad->ad_timediff.
* sunrpc/auth_none.c: Don't define our own prototypes, use the one
from the header files.
* sunrpc/auth_unix.c: Likewise.
* sunrpc/clnt_raw.c: Likewise.
* sunrpc/clnt_tcp.c: Likewise.
* sunrpc/rpc_cmsg.c: Likewise.
* sunrpc/key_call.c: Fix signal handling.
* sunrpc/openchild.c: Don't use /bin/sh to start /usr/etc/keyenvoy,
or we will get a deadlock with NIS+.
* sunrpc/rpc/auth.h: Add prototype for xdr_opaque_auth, don't define
HAVE_SECURE_RPC.
1997-09-07 15:51 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/i386/bits/select.h [__GNUC__] (__FD_ZERO, __FD_SET, __FD_CLR,
__FD_ISSET): Use correct casts to address array correctly.
Reported by urbanw@cs.umu.se.
1997-09-07 05:07 Ulrich Drepper <drepper@cygnus.com>
* elf/dl-close.c: Include <bits/libc-lock.h>, not <libc-lock.h>.
* elf/dl-open.c: Likewise.
* sysdeps/i386/memset.c: Undefine memset in case the header with the
optimized functions is included.
Patches by NIIBE Yutaka <gniibe@mri.co.jp>.
* sysdeps/i386/bits/string.h [__PIC__] (strcspn, strspn, strpbrk,
strsep): Use register for second parameter.
* sysdeps/i386/i486/bits/string.h: Likewise.
Reported by NIIBE Yutaka <gniibe@mri.co.jp>.
1997-09-03 09:48 Geoff Keating <geoffk@ozemail.com.au>
* math/libm-test.c: Change various tolerances to match what the
tested routines can actually provide.
* math/Makefile: Add new tests.
* math/atest-sincos.c: New file.
* math/atest-exp.c: New file.
* csu/Makefile: Give initfini.s and initfiniS.s their own
CFLAGS-* macros so they can be overridden.
* sysdeps/powerpc/Makefile [subdir=csu]: Override flags for
initfiniS.s to use -fpic instead of -fPIC, because the sed script
breaks otherwise.
* sysdeps/powerpc/Makefile [build-shared]: Use -fpic not -fPIC for
efficiency.
* sysdeps/powerpc/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE):
Don't use register 0, to let _mcount be in a shared object.
* sysdeps/powerpc/dl-machine.h: Use full sentences in comments.
Generally clean up. Suppress some code we don't need when relocating
ld.so.
* sysdeps/powerpc/test-arith.c: Change loop indices to size_t when
appropriate to suppress gcc warning.
* resolv/res_send.c: Suppress warning.
* sunrpc/xdr_sizeof.c: Suppress warning.
* FAQ: Add ppc-linux.
* manual/maint.texi: Add ppc-linux. Explain that gcc can't build it
yet.
* sysdeps/unix/sysv/linux/powerpc/profil-counter.h: Correct for
current kernels.
1997-08-15 07:45 Geoff Keating <geoffk@ozemail.com.au>
* stdlib/fmtmsg.c: Use two parameters for __libc_once_define.
* sysdeps/i386/machine-gmon.h: Correct typo.
* sysdeps/unix/sysv/linux/powerpc/bits/mman.h: Change to match
kernel.
* sysdeps/generic/dl-sysdep.c: Add hook for bizzare PPC argument hack.
* sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c: Rewrite to use
sysdeps/linux/dl-sysdep.c.
* sysdeps/powerpc/Makefile [subdir=gmon]: Compile ppc-mcount.
* sysdeps/powerpc/machine-gmon.h: Use ppc-mcount.
* sysdeps/powerpc/ppc-mcount: New file.
The following are mostly changes to allow profiling:
* sysdeps/powerpc/add_n.S: Added.
* sysdeps/powerpc/add_n.s: Removed.
* sysdeps/powerpc/addmul_1.S: Added.
* sysdeps/powerpc/addmul_1.s: Removed.
* sysdeps/powerpc/bsd-_setjmp.S: Use JUMPTARGET macro.
* sysdeps/powerpc/bsd-setjmp.S: Use JUMPTARGET macro.
* sysdeps/powerpc/lshift.S: Added.
* sysdeps/powerpc/lshift.s: Removed.
* sysdeps/powerpc/memset.S: Added.
* sysdeps/powerpc/memset.s: Removed.
* sysdeps/powerpc/mul_1.S: Added.
* sysdeps/powerpc/mul_1.s: Removed.
* sysdeps/powerpc/rshift.S: Added.
* sysdeps/powerpc/rshift.s: Removed.
* sysdeps/powerpc/s_copysign.S: Use ENTRY, END, weak_alias macros.
* sysdeps/powerpc/s_fabs.S: Use ENTRY, END, weak_alias macros.
* sysdeps/powerpc/setjmp.S: Use JUMPTARGET macro.
* sysdeps/powerpc/strchr.S: Added.
* sysdeps/powerpc/strchr.s: Removed.
* sysdeps/powerpc/strcmp.S: Added.
* sysdeps/powerpc/strcmp.s: Removed.
* sysdeps/powerpc/strlen.S: Added.
* sysdeps/powerpc/strlen.s: Removed.
* sysdeps/powerpc/sub_n.S: Added.
* sysdeps/powerpc/sub_n.s: Removed.
* sysdeps/powerpc/submul_1.S: Added.
* sysdeps/powerpc/submul_1.s: Removed.
* sysdeps/unix/sysv/linux/powerpc/_exit.S: Removed.
* sysdeps/unix/sysv/linux/powerpc/brk.S: Added.
* sysdeps/unix/sysv/linux/powerpc/brk.c: Removed.
* sysdeps/unix/sysv/linux/powerpc/clone.S: Use new macros. Fix
various bugs. Document that it isn't tested.
* sysdeps/unix/sysv/linux/powerpc/sigreturn.S: Make look like
sysdeps/unix/_exit.S.
* sysdeps/unix/sysv/linux/powerpc/socket.S: Use new macros.
* sysdeps/unix/sysv/linux/powerpc/syscall.S: Use new macros.
* sysdeps/unix/sysv/linux/powerpc/sysdep.h: Define some new macros
to make assembler (possibly) more portable, allow profiling, etc.
Joseph Myers
Torvald Riegel
Richard Henderson
Roland McGrath
Richard Henderson
Ulrich Drepper
Jakub Jelinek
Andreas Jaeger