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-rw-r--r--sofort/cfgtest/cfgtest.sh551
1 files changed, 551 insertions, 0 deletions
diff --git a/sofort/cfgtest/cfgtest.sh b/sofort/cfgtest/cfgtest.sh
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+# cfgtest.sh: sofort's config test framework,
+# for use from within a project's custom cfgdefs.sh.
+
+# this file is covered by COPYING.SOFORT.
+
+# 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" >> $mb_pwd/cfgdefs.mk
+}
+
+
+cfgtest_host_section()
+{
+ mb_cfgtest_cc="$ccenv_host_cc"
+ mb_cfgtest_cfgtype='host'
+ mb_cfgtest_cflags=$(${mb_make} -n -f "$mb_pwd/Makefile.tmp" .cflags-host)
+ mb_cfgtest_cflags="${mb_cfgtest_cflags#*: }"
+
+ mb_cfgtest_ldflags="$mb_ldflags_cmdline"
+ mb_cfgtest_ldflags="$mb_cfgtest_ldflags $mb_ldflags_debug"
+ mb_cfgtest_ldflags="$mb_cfgtest_ldflags $mb_ldflags_common"
+ mb_cfgtest_ldflags="$mb_cfgtest_ldflags $mb_ldflags_strict"
+ mb_cfgtest_ldflags="$mb_cfgtest_ldflags $mb_ldflags_config"
+ mb_cfgtest_ldflags="$mb_cfgtest_ldflags $mb_ldflags_sysroot"
+ mb_cfgtest_ldflags="$mb_cfgtest_ldflags $mb_ldflags_path"
+ mb_cfgtest_ldflags="$mb_cfgtest_ldflags $mb_ldflags_last"
+
+ cfgtest_comment 'host-specific tests'
+}
+
+
+cfgtest_native_section()
+{
+ mb_cfgtest_cc="$mb_native_cc"
+ mb_cfgtest_cfgtype='native'
+ mb_cfgtest_cflags=$(${mb_make} -n -f "$mb_pwd/Makefile.tmp" .cflags-native)
+ mb_cfgtest_cflags="${mb_cfgtest_cflags#*: }"
+ mb_cfgtest_ldflags="$mb_native_ldflags"
+
+ cfgtest_comment 'native system tests'
+}
+
+
+cfgtest_prolog()
+{
+ cfgtest_line_dots='.......................'
+ cfgtest_line_dots="${cfgtest_line_dots}${cfgtest_line_dots}"
+ cfgtest_tool_desc=" == trying ${mb_cfgtest_cfgtype} ${1}: ${2}"
+ cfgtest_tool_dlen="${#cfgtest_line_dots}"
+
+ printf '\n%s\n' '________________________' >&3
+ printf "cfgtest: probing for ${mb_cfgtest_cfgtype} ${1}: ${2}\n\n" >&3
+ printf "%${cfgtest_tool_dlen}.${cfgtest_tool_dlen}s" \
+ "${cfgtest_tool_desc} ${mb_line_dots}"
+}
+
+
+cfgtest_epilog()
+{
+ cfgtest_line_dots='.......................'
+ cfgtest_tool_dlen="$((${#cfgtest_line_dots} - ${#2}))"
+
+ printf "%${cfgtest_tool_dlen}.${cfgtest_tool_dlen}s %s.\n" \
+ "${cfgtest_line_dots}" "${2}"
+
+ if [ "${1}" = 'snippet' ] && [ -f = 'a.out' ]; then
+ rm -f 'a.out'
+ fi
+
+ if [ "${1}" = 'snippet' ] && [ "${2}" = '(error)' ]; then
+ printf '\n\ncfgtest: the %s compiler %s %s.\n' \
+ "$mb_cfgtest_cfgtype" \
+ 'failed to compile the above code' \
+ "${1}" >&3
+ printf '%s\n' '------------------------' >&3
+ return 1
+ fi
+
+ if [ "${2}" = '-----' ]; then
+ printf '\n\ncfgtest: %s %s is missing or cannot be found.\n' "${1}" "${3}" >&3
+ printf '%s\n' '------------------------' >&3
+ return 1
+ elif [ "${1}" = 'size-of-type' ] && [ "${2}" = '(error)' ]; then
+ printf '\n\ncfgtest: could not determine size of type `%s.\n' "${3}'" >&3
+ printf '%s\n' '------------------------' >&3
+ return 1
+ elif [ "${2}" = '(error)' ]; then
+ printf '\n\ncfgtest: %s `%s is not defined or cannot be used.\n' "${1}" "${3}'" >&3
+ printf '%s\n' '------------------------' >&3
+ return 1
+ fi
+}
+
+
+cfgtest_entity_size_prolog()
+{
+ cfgtest_line_dots='.......................'
+ cfgtest_line_dots="${cfgtest_line_dots}${cfgtest_line_dots}"
+ cfgtest_tool_desc=" == checking size of ${mb_cfgtest_cfgtype} type: ${@}"
+ cfgtest_tool_dlen="${#cfgtest_line_dots}"
+
+ printf '\n%s\n' '________________________' >&3
+ printf "cfgtest: checking size of ${mb_cfgtest_cfgtype} type: ${@}\n\n" >&3
+
+ printf "%${cfgtest_tool_dlen}.${cfgtest_tool_dlen}s" \
+ "${cfgtest_tool_desc} ${mb_line_dots}"
+}
+
+
+cfgtest_makevar_append()
+{
+ mb_internal_str='+='
+
+ for mb_internal_arg ; do
+ if ! [ -z "$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=$mb_cfgtest_makevar_saved
+}
+
+
+cfgtest_common_init()
+{
+ # cfgtest variables
+ if [ "${1:-}" = 'asm' ]; then
+ cfgtest_fmt='%s -c -xc - -o a.out'
+ elif [ "${1:-}" = 'lib' ]; then
+ cfgtest_fmt='%s -xc - -o a.out'
+ else
+ cfgtest_fmt='%s -S -xc - -o -'
+ fi
+
+ if [ "${1:-}" = 'lib' ]; then
+ cfgtest_cmd=$(printf "$cfgtest_fmt %s %s %s" \
+ "$mb_cfgtest_cc" \
+ "$mb_cfgtest_cflags" \
+ "$mb_cfgtest_ldflags" \
+ "$cfgtest_libs")
+ else
+ cfgtest_cmd=$(printf "$cfgtest_fmt %s" \
+ "$mb_cfgtest_cc" \
+ "$mb_cfgtest_cflags")
+ fi
+
+ if [ -z "$mb_cfgtest_headers" ] || [ "${1:-}" = 'lib' ]; then
+ cfgtest_inc=
+ cfgtest_src="$cfgtest_code_snippet"
+ else
+ cfgtest_inc=$(printf '#include <%s>\n' $mb_cfgtest_headers)
+ cfgtest_src=$(printf '%s\n_\n' "$cfgtest_inc" \
+ | m4 -D_="$cfgtest_code_snippet")
+ fi
+
+ # config.log
+ printf "$cfgtest_fmt" "$mb_cfgtest_cc" >&3
+
+ for cfgtest_cflag in $mb_cfgtest_cflags; do
+ printf ' \\\n\t%s' "$cfgtest_cflag" >&3
+ done
+
+ if [ "${1:-}" = 'lib' ]; then
+ for cfgtest_lib in $cfgtest_libs; do
+ printf ' \\\n\t%s' "$cfgtest_lib" >&3
+ done
+ fi
+
+ printf ' \\\n' >&3
+ printf '<< _SRCEOF\n%s\n' "$cfgtest_src" >&3
+ printf '_SRCEOF \n\n\n' >&3
+}
+
+
+cfgtest_header_presence()
+{
+ #init
+ cfgtest_prolog 'header' "${1}"
+
+ cfgtest_code_snippet=$(printf '#include <%s>\n' "${1}")
+
+ cfgtest_common_init
+
+ # execute
+ printf '%s' "$cfgtest_src" \
+ | eval $(printf '%s' "$cfgtest_cmd") \
+ > /dev/null 2>&3 \
+ || cfgtest_epilog 'header' '-----' "<${1}>" \
+ || return
+
+ # result
+ mb_internal_str=$(printf '%s%s' '-DHAVE_' "${1}" \
+ | 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 "$mb_internal_str"
+ fi
+
+ printf 'cfgtest: %s header <%s> was found and may be included.\n' \
+ "$mb_cfgtest_cfgtype" "${1}" >&3
+ printf '%s\n' '------------------------' >&3
+
+ cfgtest_epilog 'header' "${1}"
+}
+
+
+cfgtest_header_absence()
+{
+ #init
+ cfgtest_prolog 'header absence' "${1}"
+
+ cfgtest_code_snippet=$(printf '#include <%s>\n' "${1}")
+
+ cfgtest_common_init
+
+ # execute
+ printf '%s' "$cfgtest_src" \
+ | eval $(printf '%s' "$cfgtest_cmd") \
+ > /dev/null 2>&3 \
+ && printf 'cfgtest: %s header <%s>: no error.' \
+ "$mb_cfgtest_cfgtype" "${1}" >&3 \
+ && cfgtest_epilog 'header' "${1}" \
+ && return
+
+ # result
+ mb_internal_str=$(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 "$mb_internal_str"
+ fi
+
+ printf 'cfgtest: %s header <%s> may not be included.\n' \
+ "$mb_cfgtest_cfgtype" "${1}" >&3
+ printf '%s\n' '------------------------' >&3
+
+ cfgtest_epilog 'header' '-----'
+}
+
+
+cfgtest_interface_presence()
+{
+ # init
+ cfgtest_prolog 'interface' "${1}"
+
+ cfgtest_code_snippet=$(printf 'void * addr = &%s;\n' "${1}")
+
+ cfgtest_common_init
+
+ # execute
+ printf '%s' "$cfgtest_src" \
+ | eval $(printf '%s' "$cfgtest_cmd") \
+ > /dev/null 2>&3 \
+ || cfgtest_epilog 'interface' '(error)' "${1}" \
+ || return
+
+ # result
+ mb_internal_str=$(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 "$mb_internal_str"
+ fi
+
+ printf 'cfgtest: %s interface `%s'"'"' is available.\n' \
+ "$mb_cfgtest_cfgtype" "${1}" >&3
+ printf '%s\n' '------------------------' >&3
+
+ cfgtest_epilog 'interface' "${1}"
+
+ return 0
+}
+
+
+cfgtest_decl_presence()
+{
+ # init
+ cfgtest_prolog 'decl' "${1}"
+
+ cfgtest_code_snippet=$(printf 'void * any = (void *)(%s);' "${1}")
+
+ cfgtest_common_init
+
+ # execute
+ printf '%s' "$cfgtest_src" \
+ | eval $(printf '%s' "$cfgtest_cmd") \
+ > /dev/null 2>&3 \
+ || cfgtest_epilog 'decl' '(error)' "${1}" \
+ || return
+
+ # does the argument solely consist of the macro or enum member name?
+ mb_internal_str=$(printf '%s' "$@" | tr -d '[a-z][A-Z][0-9][_]')
+
+ if [ -n "$mb_internal_str" ]; then
+ cfgtest_epilog 'decl' '(defined)'
+ return 0
+ fi
+
+ # result
+ 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 "$mb_internal_str"
+ fi
+
+ printf 'cfgtest: `%s'"'"' is defined for the %s system.\n' \
+ "${1}" "$mb_cfgtest_cfgtype" >&3
+ printf '%s\n' '------------------------' >&3
+
+ cfgtest_epilog 'decl' '(defined)'
+
+ return 0
+}
+
+
+cfgtest_type_size()
+{
+ cfgtest_entity_size_prolog "$@"
+
+ mb_internal_size=''
+ mb_internal_test='char x[(sizeof(%s) == %s) ? 1 : -1];'
+
+ for mb_internal_guess in 8 4 2 1 16 32 64 128; do
+ if [ -z $mb_internal_size ]; then
+ printf '# guess %s ===>\n' "$mb_internal_guess" >&3
+
+ mb_internal_type="$@"
+
+ cfgtest_code_snippet=$(printf "$mb_internal_test" \
+ "$mb_internal_type" "$mb_internal_guess")
+
+ cfgtest_common_init
+
+ printf '%s' "$cfgtest_src" \
+ | eval $(printf '%s' "$cfgtest_cmd") \
+ > /dev/null 2>&3 \
+ && mb_internal_size=$mb_internal_guess
+
+ printf '\n' >&3
+ fi
+ done
+
+ # unrecognized type, or type size not within range
+ if [ -z $mb_internal_size ]; then
+ cfgtest_epilog 'size-of-type' '(error)' "@"
+ return 1
+ fi
+
+ # -DSIZEOF_TYPE=SIZE
+ mb_internal_str=$(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 "$mb_internal_str"
+ fi
+
+ printf 'cfgtest: size of type `%s'"'"' determined to be %s\n' \
+ "${@}" "$mb_internal_size" >&3
+ printf '%s\n' '------------------------' >&3
+
+ cfgtest_epilog 'size-of-type' "$mb_internal_size"
+
+ return 0
+}
+
+
+cfgtest_code_snippet_asm()
+{
+ # init
+ cfgtest_prolog 'support of code snippet' '<...>'
+
+ cfgtest_code_snippet="$@"
+
+ cfgtest_common_init 'asm'
+
+ # execute
+ cfgtest_ret=1
+
+ printf '%s' "$cfgtest_src" \
+ | eval $(printf '%s' "$cfgtest_cmd") \
+ > /dev/null 2>&3 \
+ || cfgtest_epilog 'snippet' '(error)' \
+ || return
+
+ # result
+ cfgtest_ret=0
+
+ printf 'cfgtest: %s compiler: above code snippet compiled successfully.\n\n' \
+ "$mb_cfgtest_cfgtype" >&3
+
+ cfgtest_epilog 'snippet' '(ok)'
+
+ return 0
+}
+
+
+cfgtest_library_presence()
+{
+ # init
+ cfgtest_libs=
+ cfgtest_spc=
+
+ for cfgtest_lib in ${@}; do
+ cfgtest_libs="$cfgtest_libs$cfgtest_spc$cfgtest_lib"
+ cfgtest_spc=' '
+ done
+
+ if [ "${1}" = "$cfgtest_libs" ]; then
+ cfgtest_prolog 'library' "${1#*-l}"
+ else
+ cfgtest_prolog 'lib module' '(see config.log)'
+ fi
+
+ cfgtest_code_snippet='int main(void){return 0;}'
+
+ cfgtest_common_init 'lib'
+
+ # execute
+ printf '%s' "$cfgtest_src" \
+ | eval $(printf '%s' "$cfgtest_cmd") \
+ > /dev/null 2>&3 \
+ || cfgtest_epilog 'library' '-----' "$@" \
+ || return 1
+
+ # result
+ printf 'cfgtest: `%s'"'"' was accepted by the linker driver.\n' \
+ "$cfgtest_libs" >&3
+ printf '%s\n' '------------------------' >&3
+
+ cfgtest_epilog 'library' '(present)'
+
+ 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
+}