glibc/sysdeps/nios2/Makefile

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# Copyright (C) 1993-2018 Free Software Foundation, Inc.
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# 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/>.
pic-ccflag = -fpic
# We don't support long doubles as a distinct type. We don't need to set
# this variable; it's here mostly for documentational purposes.
long-double-fcts = no
ifeq ($(subdir),soft-fp)
Make powerpc-nofpu __sqrtsf2, __sqrtdf2 compat symbols (bug 18473). powerpc-nofpu libc exports __sqrtsf2 and __sqrtdf2 symbols. The export of these soft-fp symbols is a mistake; they aren't part of the libgcc interface and GCC will never generate code that calls them. This patch makes them into compat symbols (no code built for static libc), moving their sources from the generic soft-fp sources to sysdeps/powerpc/nofpu (the underlying soft-fp FP_SQRT functionality remains of use to implement actual sqrt public interfaces, such as sqrtl / sqrtf128 for which it is used on various platforms, but __sqrt[sdt]f2 are not such interfaces). Tested with build-many-glibcs.py for relevant platforms. [BZ #18473] * soft-fp/sqrttf2.c: Remove file. * soft-fp/sqrtdf2.c: Move to .... * sysdeps/powerpc/nofpu/sqrtdf2.c: ... here. Include <shlib-compat.h>. (__sqrtdf2): Make conditional on [SHLIB_COMPAT (libc, GLIBC_2_3_2, GLIBC_2_28)]. Define as compat symbol. * soft-fp/sqrtsf2.c: Move to .... * sysdeps/powerpc/nofpu/sqrtsf2.c: ... here. Include <shlib-compat.h>. (__sqrtsf2): Make conditional on [SHLIB_COMPAT (libc, GLIBC_2_3_2, GLIBC_2_28)]. Define as compat symbol. * soft-fp/Makefile (gcc-single-routines): Remove sqrtsf2. (gcc-double-routines): Remove sqrtdf2. (gcc-quad-routines): Remove sqrttf2. * sysdeps/nios2/Makefile [$(subdir) = soft-fp] (sysdep_routines): Do not filter out sqrtsf2 and sqrtdf2. * sysdeps/powerpc/nofpu/Makefile [$(subdir) = soft-fp] (sysdep_routines): Add sqrtsf2 and sqrtdf2.
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sysdep_routines += $(gcc-single-routines) $(gcc-double-routines)
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endif
ifeq ($(subdir),csu)
gen-as-const-headers += tcb-offsets.sym
endif