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-rw-r--r--sofort/cfgtest/cfgtest.sh332
1 files changed, 332 insertions, 0 deletions
diff --git a/sofort/cfgtest/cfgtest.sh b/sofort/cfgtest/cfgtest.sh
new file mode 100644
index 0000000..b8821bb
--- /dev/null
+++ b/sofort/cfgtest/cfgtest.sh
@@ -0,0 +1,332 @@
+# cfgtest.sh: sofort's config test framework,
+# for use from within a project's custom cfgdefs.sh.
+
+# in the common scenario, target-specific tests are preceded
+# by a single invocation of cfgtest_target_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 (target/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" >> $mb_pwd/cfgdefs.mk
+}
+
+
+cfgtest_target_section()
+{
+ mb_cfgtest_cc=$(make -s -f "$mb_pwd/Makefile.tmp" .display-cc)
+ mb_cfgtest_cflags=$(make -s -f "$mb_pwd/Makefile.tmp" .display-cflags)
+ mb_cfgtest_cfgtype='target'
+
+ cfgtest_comment 'target-specific tests'
+}
+
+
+cfgtest_native_section()
+{
+ mb_cfgtest_cc="$mb_native_cc"
+ mb_cfgtest_cflags="$mb_native_cc_cflags"
+ mb_cfgtest_cfgtype='native'
+
+ cfgtest_comment 'native system tests'
+}
+
+
+cfgtest_makevar_append()
+{
+ mb_internal_str='+='
+
+ for mb_internal_arg ; do
+ if ! [ -z "$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 [ $mb_cfgtest_cfgtype = 'target' ]; then
+ mb_internal_makevar='CFLAGS_CONFIG'
+ else
+ mb_internal_makevar='NATIVE_CC_CFLAGS'
+ fi
+
+ mb_cfgtest_makevar_saved=$mb_cfgtest_makevar
+ mb_cfgtest_makevar=$mb_internal_makevar
+
+ cfgtest_makevar_append "$@"
+ mb_cfgtest_makevar=$mb_cfgtest_makevar_saved
+}
+
+
+cfgtest_ldflags_append()
+{
+ if [ $mb_cfgtest_cfgtype = 'target' ]; then
+ mb_internal_makevar='LDFLAGS_CONFIG'
+ else
+ mb_internal_makevar='NATIVE_CC_LDFLAGS'
+ fi
+
+ mb_cfgtest_makevar_saved=$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_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
+}