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# ====================================================================
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#
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# libm.cdl
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#
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# Maths library configuration data
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#
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# ====================================================================
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## ####ECOSGPLCOPYRIGHTBEGIN####
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## -------------------------------------------
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## This file is part of eCos, the Embedded Configurable Operating System.
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## Copyright (C) 1998, 1999, 2000, 2001, 2002, 2010 Free Software Foundation, Inc.
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##
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## eCos is free software; you can redistribute it and/or modify it under
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## the terms of the GNU General Public License as published by the Free
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## Software Foundation; either version 2 or (at your option) any later
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## version.
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##
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## eCos is distributed in the hope that it will be useful, but WITHOUT
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## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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## for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with eCos; if not, write to the Free Software Foundation, Inc.,
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## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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##
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## As a special exception, if other files instantiate templates or use
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## macros or inline functions from this file, or you compile this file
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## and link it with other works to produce a work based on this file,
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## this file does not by itself cause the resulting work to be covered by
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## the GNU General Public License. However the source code for this file
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## must still be made available in accordance with section (3) of the GNU
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## General Public License v2.
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##
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## This exception does not invalidate any other reasons why a work based
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## on this file might be covered by the GNU General Public License.
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## -------------------------------------------
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## ####ECOSGPLCOPYRIGHTEND####
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# ====================================================================
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######DESCRIPTIONBEGIN####
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#
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# Author(s): bartv
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# Original data: jlarmour
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# Contributors:
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# Date: 1999-06-13
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#
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#####DESCRIPTIONEND####
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#
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# ====================================================================
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cdl_package CYGPKG_LIBM {
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display "Math library"
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doc ref/libc.html
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description "
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ISO standard floating point mathematical library
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containing many useful functions for mathematical
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calculations."
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compile misc/matherr.c misc/standard.c misc/compatmode.cxx \
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misc/infconst.c \
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\
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double/ieee754-core/e_acos.c double/ieee754-core/e_asin.c \
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double/ieee754-core/e_atan2.c double/ieee754-core/e_cosh.c \
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double/ieee754-core/e_exp.c double/ieee754-core/e_fmod.c \
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double/ieee754-core/e_log.c double/ieee754-core/e_log10.c \
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double/ieee754-core/e_pow.c \
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double/ieee754-core/e_rem_pio2.c \
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double/ieee754-core/e_scalb.c double/ieee754-core/e_sinh.c \
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double/ieee754-core/e_sqrt.c \
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\
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double/ieee754-api/w_acos.c double/ieee754-api/w_asin.c \
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double/ieee754-api/w_atan2.c double/ieee754-api/w_cosh.c \
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double/ieee754-api/w_exp.c double/ieee754-api/w_fmod.c \
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double/ieee754-api/w_log.c double/ieee754-api/w_log10.c \
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double/ieee754-api/w_pow.c double/ieee754-api/w_scalb.c \
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double/ieee754-api/w_sinh.c double/ieee754-api/w_sqrt.c \
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\
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double/internal/k_cos.c double/internal/k_rem_pio2.c \
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double/internal/k_sin.c double/internal/k_tan.c \
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\
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double/portable-api/s_atan.c double/portable-api/s_ceil.c \
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double/portable-api/s_copysign.c \
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double/portable-api/s_cos.c double/portable-api/s_expm1.c \
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double/portable-api/s_fabs.c double/portable-api/s_finite.c \
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double/portable-api/s_floor.c double/portable-api/s_frexp.c \
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double/portable-api/s_isnan.c double/portable-api/s_ldexp.c \
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double/portable-api/s_rint.c double/portable-api/s_scalbn.c \
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double/portable-api/s_sin.c double/portable-api/s_tan.c \
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double/portable-api/s_modf.c double/portable-api/s_tanh.c
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# COMPATIBILITY-MODE RELATED CONFIGURATION OPTIONS
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cdl_component CYGPKG_LIBM_COMPATIBILITY {
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display "Compatibility mode"
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flavor none
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description "
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These options deal with behaviour related to
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the various compatibility modes - POSIX, IEEE,
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X/OPEN and SVID."
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script compat.cdl
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}
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# THREAD-SAFETY CONFIGURATION OPTIONS
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cdl_component CYGPKG_LIBM_THREAD_SAFETY {
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display "Thread safety"
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flavor none
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description "
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This option controls whether the C library has
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support for thread safe operation in general.
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This requires eCos kernel support for per-thread
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data, and adjustment of the stack limit."
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cdl_option CYGSEM_LIBM_THREAD_SAFE_COMPAT_MODE {
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display "Compatibility mode setting"
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requires !CYGSEM_LIBM_COMPAT_IEEE_ONLY
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requires CYGVAR_KERNEL_THREADS_DATA
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default_value 0
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description "
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This option makes the setting of the compatiblity
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mode be a per-thread property. This directly
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implies that it also becomes thread-safe."
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}
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cdl_option CYGSEM_LIBM_THREAD_SAFE_GAMMA_FUNCTIONS {
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display "gamma() and lgamma()"
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requires CYGVAR_KERNEL_THREADS_DATA
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default_value 0
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description "
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This option makes the gamma() and lgamma()
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functions be thread-safe. Note that these
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functions are identical - they take the log of
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the absolute value of their argument. The sign
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of the argument is stored in a variable called
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signgam. Enabling this option makes signgam
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a per-thread variable. Note there are also
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gamma_r() and lgamma_r() alternatives that
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allow signgam to be passed in by reference as
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an argument."
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}
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}
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# TRACING OPTIONS
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cdl_component CYGPKG_LIBM_TRACE {
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display "Tracing output levels in math library"
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flavor bool
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requires CYGDBG_USE_TRACING
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default_value 0
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description "
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Tracing support is useful for debugging. Some
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Math library modules can be configured with
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different levels of tracing verbosity. These
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levels can be configured here."
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cdl_option CYGNUM_LIBM_COMPATMODE_TRACE_LEVEL {
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display "Compatibility mode get/set"
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requires CYGSEM_LIBM_THREAD_SAFE_COMPAT_MODE
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flavor data
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legal_values 0 to 1
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default_value 0
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description "
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Trace level for debugging the getting and
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setting of the compatibility mode when it is
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configured to be thread-safe."
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}
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cdl_option CYGNUM_LIBM_SIGNGAM_TRACE_LEVEL {
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display "signgam variable access"
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requires CYGSEM_LIBM_THREAD_SAFE_GAMMA_FUNCTIONS
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flavor data
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legal_values 0 to 1
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default_value 0
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description "
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Trace level for debugging all accesses to the
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signgam variable in thread-safe mode."
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}
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}
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# OTHER CONFIGURATION SETTINGS
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cdl_option CYGNUM_LIBM_X_TLOSS {
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display "Bessel function limit of significance"
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flavor data
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default_value 1.41484755040568800000e+16; # pi*(2**52)
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legal_values 1 to 1e308; # FIXME
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define X_TLOSS
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description "
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For the Bessel functions (j0(), j1(), jn(),
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y0(), y1(), yn()) this option defines the
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maximum absolute value of the ordinate
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before we assume total loss of significance.
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This number must be a floating-point number (e.g.
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contains a decimal point), and should be
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large."
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}
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define_proc {
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puts $::cdl_header "/***** proc output start *****/"
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puts $::cdl_header "#include "
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# TYPE DEFINITIONS
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# Compatibility mode selector - required for default below
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puts $::cdl_header "typedef enum {"
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puts $::cdl_header " CYGNUM_LIBM_COMPAT_UNINIT= 0, // Default state. DO NOT set it to this"
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puts $::cdl_header " CYGNUM_LIBM_COMPAT_POSIX = 1, // ANSI/POSIX 1003.1"
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puts $::cdl_header " CYGNUM_LIBM_COMPAT_IEEE = 2, // IEEE-754"
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puts $::cdl_header " CYGNUM_LIBM_COMPAT_XOPEN = 3, // X/OPEN Portability guide issue 3"
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puts $::cdl_header " // (XPG3)"
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puts $::cdl_header " CYGNUM_LIBM_COMPAT_SVID = 4 // System V Interface Definition 3rd"
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puts $::cdl_header " // edition"
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puts $::cdl_header "} Cyg_libm_compat_t;"
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puts $::cdl_header ""
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puts $::cdl_header "/****** proc output end ******/"
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}
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cdl_component CYGPKG_LIBM_OPTIONS {
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display "Math library build options"
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flavor none
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description "
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Package specific build options including control over
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compiler flags used only in building this package,
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and details of which tests are built."
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cdl_option CYGPKG_LIBM_CFLAGS_ADD {
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display "Additional compiler flags"
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flavor data
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no_define
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default_value { "-fno-strict-aliasing" . \
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((!CYGPKG_HAL_I386 && !CYGPKG_HAL_SYNTH_I386) ? "" : " -ffloat-store") }
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description "
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This option modifies the set of compiler flags for
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building the math library. These flags are used in addition
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to the set of global flags."
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}
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cdl_option CYGPKG_LIBM_CFLAGS_REMOVE {
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display "Suppressed compiler flags"
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flavor data
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no_define
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default_value { "" }
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description "
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This option modifies the set of compiler flags for
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building the math library. These flags are removed from
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the set of global flags if present."
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}
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cdl_option CYGPKG_LIBM_TESTS {
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display "Math library tests"
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flavor data
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no_define
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calculated { "tests/vectors/acos tests/vectors/asin tests/vectors/atan tests/vectors/atan2 tests/vectors/ceil tests/vectors/cos tests/vectors/cosh tests/vectors/exp tests/vectors/fabs tests/vectors/floor tests/vectors/fmod tests/vectors/frexp tests/vectors/ldexp tests/vectors/log tests/vectors/log10 tests/vectors/modf tests/vectors/pow tests/vectors/sin tests/vectors/sinh tests/vectors/sqrt tests/vectors/tan tests/vectors/tanh" }
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description "
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This option specifies the set of tests for the math library."
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}
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}
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}
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