| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame^] | 1 | # Copyright (C) 1993-2016 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 |