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75 lines
2.3 KiB
Makefile
75 lines
2.3 KiB
Makefile
# Copyright (C) 1993-2020 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# Contributed by Brendan Kehoe (brendan@zen.org).
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library. If not, see
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# <https://www.gnu.org/licenses/>.
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ifeq ($(subdir),db2)
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CPPFLAGS += -DHAVE_SPINLOCKS=1 -DHAVE_ASSEM_ALPHA=1
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endif
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ifeq ($(subdir),debug)
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# Consider making this GCC's default...
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CFLAGS-backtrace.c = -fasynchronous-unwind-tables
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endif
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ifeq ($(subdir),gmon)
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sysdep_routines += _mcount
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endif
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ifeq ($(subdir),gnulib)
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sysdep_routines += divl divlu divq divqu reml remlu remq remqu
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endif
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ifeq ($(subdir),string)
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sysdep_routines += stxcpy stxncpy
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endif
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ifeq ($(subdir),elf)
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# The ld.so startup code cannot use literals until it self-relocates.
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CFLAGS-rtld.c = -mbuild-constants
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endif
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ifeq ($(subdir),math)
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# The fma routines rely on inexact being raised for correct results.
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CFLAGS-s_fma.c = -mieee-with-inexact
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CFLAGS-s_fmaf.c = -mieee-with-inexact
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# This test tries to check for inexact being raised by arithmetic.
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CFLAGS-test-misc.c += -mieee-with-inexact
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# Avoid "conflicting types for built-in function" warnings
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CFLAGS-s_isnan.c += -fno-builtin-isnanf
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endif
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# Build everything with full IEEE math support, and with dynamic rounding;
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# there are a number of math routines that are defined to work with the
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# "current" rounding mode, and it's easiest to set this with all of them.
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sysdep-CFLAGS += -mieee -mfp-rounding-mode=d
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# libc.so requires about 16k for the small data area, which is well
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# below the 64k maximum.
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pic-ccflag = -fpic
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# Software floating-point emulation.
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ifeq ($(subdir),soft-fp)
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sysdep_routines += ots_add ots_sub ots_mul ots_div ots_cmp ots_cmpe \
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ots_cvtxq ots_cvtqx ots_cvtqux ots_cvttx ots_cvtxt ots_nintxq \
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fraiseexcpt
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endif
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ifeq ($(subdir),math)
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CPPFLAGS += -I../soft-fp
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endif
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