# cfgtest.sh: sofort's config test framework,
# for use from within a project's custom cfgdefs.sh.
# in the common scenario, host-specific tests are preceded
# by a single invocation of cfgtest_host_section, whereas
# native (build) system tests are preceded by the invocation
# of cfgtest_native_section.
# cfgdefs fraework variables:
# mb_cfgtest_cc: the compiler used for the current test
# mb_cfgtest_cflags: the compiler flags used for the current test
# mb_cfgtest_cfgtype: the type of the current test (host/native)
# mb_cfgtest_makevar: the make variable affected by the current test
# mb_cfgtest_headers: headers for ad-hoc inclusion with the current test
cfgtest_newline()
{
printf '\n' >> $mb_pwd/cfgdefs.mk
}
cfgtest_comment()
{
mb_internal_str='#'
for mb_internal_arg ; do
mb_internal_str="$mb_internal_str $mb_internal_arg"
done
printf '%s\n' "$mb_internal_str" >> $mb_pwd/cfgdefs.mk
}
cfgtest_host_section()
{
mb_cfgtest_cflags=
mb_cfgtest_cflags="$mb_cfgtest_cflags $mb_cflags_debug $mb_cflags_config"
mb_cfgtest_cflags="$mb_cfgtest_cflags $mb_cflags_sysroot $mb_cflags_common"
mb_cfgtest_cflags="$mb_cfgtest_cflags $mb_cflags_cmdline $mb_cflags"
mb_cfgtest_cflags="$mb_cfgtest_cflags $mb_cflags_path $mb_cflags_os"
mb_cfgtest_cflags="$mb_cfgtest_cflags $mb_cflags_site $mb_cflags_strict"
mb_cfgtest_cflags="$mb_cfgtest_cflags $mb_cflags_last $mb_cflags_once"
mb_cfgtest_cc="$ccenv_host_cc"
mb_cfgtest_cfgtype='host'
cfgtest_comment 'host-specific tests'
}
cfgtest_native_section()
{
mb_cfgtest_cc="$mb_native_cc"
mb_cfgtest_cflags="$mb_native_cflags"
mb_cfgtest_cfgtype='native'
cfgtest_comment 'native system tests'
}
cfgtest_makevar_append()
{
mb_internal_str='+='
for mb_internal_arg ; do
if ! [ -z "$mb_internal_arg" ]; then
mb_internal_str="$mb_internal_str $mb_internal_arg"
fi
done
printf '%-24s%s\n' "$mb_cfgtest_makevar" "$mb_internal_str" \
>> $mb_pwd/cfgdefs.mk
unset cfgtest_internal_unit_test
}
cfgtest_cflags_append()
{
if [ $mb_cfgtest_cfgtype = 'host' ]; then
mb_internal_makevar='CFLAGS_CONFIG'
else
mb_internal_makevar='NATIVE_CFLAGS'
fi
mb_cfgtest_makevar_saved=$mb_cfgtest_makevar
mb_cfgtest_makevar=$mb_internal_makevar
cfgtest_makevar_append "$@"
mb_cfgtest_makevar=$mb_cfgtest_makevar_saved
}
cfgtest_ldflags_append()
{
if [ $mb_cfgtest_cfgtype = 'host' ]; then
mb_internal_makevar='LDFLAGS_CONFIG'
else
mb_internal_makevar='NATIVE_LDFLAGS'
fi
mb_cfgtest_makevar_saved=$mb_cfgtest_makevar
mb_cfgtest_makevar=$mb_internal_makevar
cfgtest_makevar_append "$@"
mb_cfgtest_makevar=$mb_cfgtest_makevar_saved
}
cfgtest_header_presence()
{
$mb_cfgtest_cc -E -xc - \
$mb_cfgtest_cflags \
--include="$@" \
< /dev/null \
> /dev/null 2>/dev/null \
|| return
mb_internal_str=$(printf '%s%s' '-DHAVE_' "$@" \
| sed -e 's/\./_/g' -e 's@/@_@g' \
| tr "[:lower:]" "[:upper:]")
if [ -z ${cfgtest_internal_unit_test:-} ]; then
cfgtest_cflags_append "$mb_internal_str"
else
cfgtest_makevar_append "$mb_internal_str"
fi
}
cfgtest_header_absence()
{
$mb_cfgtest_cc -E -xc - \
$mb_cfgtest_cflags \
--include="$@" \
< /dev/null \
> /dev/null 2>/dev/null \
&& return
mb_internal_str=$(printf '%s%s' '-DHAVE_NO_' "$@" \
| sed -e 's/\./_/g' -e 's@/@_@g' \
| tr "[:lower:]" "[:upper:]")
if [ -z ${cfgtest_internal_unit_test:-} ]; then
cfgtest_cflags_append "$mb_internal_str"
else
cfgtest_makevar_append "$mb_internal_str"
fi
}
cfgtest_interface_presence()
{
mb_internal_cflags=''
for mb_header in $mb_cfgtest_headers; do
mb_internal_cflags="$mb_internal_cflags --include=$mb_header"
done
printf 'void * addr = &%s;' "$@" \
| $mb_cfgtest_cc -S -xc - -o - \
$mb_cfgtest_cflags \
$mb_internal_cflags \
> /dev/null 2>/dev/null \
|| return 1
mb_internal_str=$(printf '%s%s' '-DHAVE_' "$@" \
| sed -e 's/\./_/g' \
| tr "[:lower:]" "[:upper:]")
if [ -z ${cfgtest_internal_unit_test:-} ]; then
cfgtest_cflags_append "$mb_internal_str"
else
cfgtest_makevar_append "$mb_internal_str"
fi
return 0
}
cfgtest_decl_presence()
{
mb_internal_cflags=''
for mb_header in $mb_cfgtest_headers; do
mb_internal_cflags="$mb_internal_cflags --include=$mb_header"
done
printf 'void * any = (void *)%s;' "$@" \
| $mb_cfgtest_cc -S -xc - -o - \
$mb_cfgtest_cflags \
$mb_internal_cflags \
> /dev/null 2>/dev/null \
|| return 1
# does the argument solely consist of the macro or enum member name?
mb_internal_str=$(printf '%s' "$@" | tr -d '[a-z][A-Z][0-9][_]')
if [ -n "$mb_internal_str" ]; then
return 0
fi
mb_internal_str=$(printf '%s%s' '-DHAVE_DECL_' "$@" \
| sed -e 's/\./_/g' \
| tr "[:lower:]" "[:upper:]")
if [ -z ${cfgtest_internal_unit_test:-} ]; then
cfgtest_cflags_append "$mb_internal_str"
else
cfgtest_makevar_append "$mb_internal_str"
fi
return 0
}
cfgtest_type_size()
{
mb_internal_cflags=''
mb_internal_size=''
mb_internal_test='char x[(sizeof(%s) == %s) ? 1 : -1];'
for mb_header in $mb_cfgtest_headers; do
mb_internal_cflags="$mb_internal_cflags --include=$mb_header"
done
for mb_internal_guess in 8 4 2 1 16 32 64 128; do
if [ -z $mb_internal_size ]; then
mb_internal_type="$@"
mb_internal_str=$(printf "$mb_internal_test" \
"$mb_internal_type" \
"$mb_internal_guess")
printf '%s' "$mb_internal_str" \
| $mb_cfgtest_cc -S -xc - -o - \
$mb_cfgtest_cflags \
$mb_internal_cflags \
> /dev/null 2>/dev/null \
&& mb_internal_size=$mb_internal_guess
fi
done
# unrecognized type, or type size not within range
if [ -z $mb_internal_size ]; then
return 1
fi
# -DSIZEOF_TYPE=SIZE
mb_internal_str=$(printf '%s%s=%s' '-DSIZEOF_' \
"$mb_internal_type" \
"$mb_internal_size" \
| sed -e 's/\ /_/g' -e 's/*/P/g' \
| tr "[:lower:]" "[:upper:]")
if [ -z ${cfgtest_internal_unit_test:-} ]; then
cfgtest_cflags_append "$mb_internal_str"
else
cfgtest_makevar_append "$mb_internal_str"
fi
return 0
}
cfgtest_code_snippet()
{
mb_internal_cflags=''
mb_internal_test="$@"
for mb_header in $mb_cfgtest_headers; do
mb_internal_cflags="$mb_internal_cflags --include=$mb_header"
done
printf '%s' "$mb_internal_test" \
| $mb_cfgtest_cc -S -xc - -o - \
$mb_cfgtest_cflags \
$mb_internal_cflags \
> /dev/null 2>/dev/null \
|| return 1
return 0
}
cfgtest_code_snippet_asm()
{
mb_internal_cflags=''
mb_internal_test="$@"
cfgtest_tmp=$(mktemp ./tmp_XXXXXXXXXXXXXXXX)
cfgtest_ret=1
for mb_header in $mb_cfgtest_headers; do
mb_internal_cflags="$mb_internal_cflags --include=$mb_header"
done
printf '%s' "$mb_internal_test" \
| $mb_cfgtest_cc -c -xc - \
-o $cfgtest_tmp \
$mb_cfgtest_cflags \
$mb_internal_cflags \
> /dev/null 2>/dev/null \
&& cfgtest_ret=0
rm -f "$cfgtest_tmp"
unset cfgtest_tmp
return $cfgtest_ret
}
cfgtest_library_presence()
{
printf 'int main(void){return 0;}' \
| $mb_cfgtest_cc -o a.out -xc - \
$mb_cfgtest_cflags \
$@ \
> /dev/null 2>/dev/null \
|| return 1
rm -f a.out
return 0
}
cfgtest_unit_header_presence()
{
cfgtest_internal_unit_test='unit_test'
cfgtest_header_presence "$@" || return 1
return 0
}
cfgtest_unit_header_absence()
{
cfgtest_internal_unit_test='unit_test'
cfgtest_header_absence "$@" || return 1
return 0
}
cfgtest_unit_interface_presence()
{
cfgtest_internal_unit_test='unit_test'
cfgtest_interface_presence "$@" || return 1
return 0
}
cfgtest_unit_decl_presence()
{
cfgtest_internal_unit_test='unit_test'
cfgtest_decl_presence "$@" || return 1
return 0
}
cfgtest_unit_type_size()
{
cfgtest_internal_unit_test='unit_test'
cfgtest_type_size "$@" || return 1
return 0
}