sysdeps/alpha/Makefile

   1 # Copyright (C) 1993-2018 Free Software Foundation, Inc.
   2 # This file is part of the GNU C Library.
   3 # Contributed by Brendan Kehoe (brendan@zen.org).
   4
   5 # The GNU C Library is free software; you can redistribute it and/or
   6 # modify it under the terms of the GNU Lesser General Public
   7 # License as published by the Free Software Foundation; either
   8 # version 2.1 of the License, or (at your option) any later version.
   9
  10 # The GNU C Library is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 # Lesser General Public License for more details.
  14
  15 # You should have received a copy of the GNU Lesser General Public
  16 # License along with the GNU C Library.  If not, see
  17 # <http://www.gnu.org/licenses/>.
  18
  19 ifeq ($(subdir),db2)
  20 CPPFLAGS += -DHAVE_SPINLOCKS=1 -DHAVE_ASSEM_ALPHA=1
  21 endif
  22
  23 ifeq ($(subdir),debug)
  24 # Consider making this GCC's default...
  25 CFLAGS-backtrace.c = -fasynchronous-unwind-tables
  26 endif
  27
  28 ifeq ($(subdir),gmon)
  29 sysdep_routines += _mcount
  30 endif
  31
  32 ifeq ($(subdir),gnulib)
  33 sysdep_routines += divl divlu divq divqu reml remlu remq remqu
  34 endif
  35
  36 ifeq ($(subdir),string)
  37 sysdep_routines += stxcpy stxncpy
  38 endif
  39
  40 ifeq ($(subdir),elf)
  41 # The ld.so startup code cannot use literals until it self-relocates.
  42 CFLAGS-rtld.c = -mbuild-constants
  43 endif
  44
  45 ifeq ($(subdir),math)
  46 # The fma routines rely on inexact being raised for correct results.
  47 CFLAGS-s_fma.c = -mieee-with-inexact
  48 CFLAGS-s_fmaf.c = -mieee-with-inexact
  49 # This test tries to check for inexact being raised by arithmetic.
  50 CFLAGS-test-misc.c += -mieee-with-inexact
  51 # Avoid "conflicting types for built-in function" warnings
  52 CFLAGS-s_isnan.c += -fno-builtin-isnanf
  53 endif
  54
  55 # Build everything with full IEEE math support, and with dynamic rounding;
  56 # there are a number of math routines that are defined to work with the
  57 # "current" rounding mode, and it's easiest to set this with all of them.
  58 sysdep-CFLAGS += -mieee -mfp-rounding-mode=d
  59
  60 # libc.so requires about 16k for the small data area, which is well
  61 # below the 64k maximum.
  62 pic-ccflag = -fpic
  63
  64 #  Software floating-point emulation.
  65
  66 ifeq ($(subdir),soft-fp)
  67 sysdep_routines += ots_add ots_sub ots_mul ots_div ots_cmp ots_cmpe     \
  68         ots_cvtxq ots_cvtqx ots_cvtqux ots_cvttx ots_cvtxt ots_nintxq   \
  69         fraiseexcpt
  70 endif
  71
  72 ifeq ($(subdir),math)
  73 CPPFLAGS += -I../soft-fp
  74 endif