# ccenv.sh: sofort's tool-finding bits,
# invoked from within the project-agnostic configure script.
# this file is covered by COPYING.SOFORT.
# invocation and names of binary tools:
# agnostic names (ar, nm, objdump, ...);
# target-prefixed agnostic names (x86_64-nt64-midipix-ar, ...);
# branded names (llvm-ar, llvm-nm, llvm-objdump, ...);
# target-prefixed branded names (x86_64-linux-gnu-gcc-ar, ...);
# target-specifying branded tools (llvm-ar --target=x86_64-linux, ...).
# cross-compilation: default search order:
# target-prefixed agnostic tools;
# target-prefixed branded tools, starting with the prefix
# most commonly associated with the selected compiler (that is,
# ``gcc'' when using gcc, and ``llvm'' when using clang);
# target-speficying branded tools, starting once again with the
# prefix most commonly associated with the selected compiler.
# internal variables of interest:
# ccenv_cfgtype: the type of host being tested (host/native)
# ccenv_cfgfile: the configuration file for the host being tested
# ccenv_cflags: the comprehensive cflags for the host being tested
# ccenv_cchost: the host being tested, as reported by -dumpmachine
ccenv_usage()
{
cat "$mb_project_dir"/sofort/ccenv/ccenv.usage
exit 0
}
ccenv_newline()
{
printf '\n' >> "$ccenv_cfgfile"
}
ccenv_comment()
{
ccenv_internal_str='#'
for ccenv_internal_arg ; do
ccenv_internal_str="$ccenv_internal_str $ccenv_internal_arg"
done
printf '%s\n' "$ccenv_internal_str" >> "$ccenv_cfgfile"
}
ccenv_tool_prolog()
{
ccenv_line_dots='.....................................'
ccenv_tool_desc=" == checking for ${1}"
ccenv_tool_dlen="${#ccenv_line_dots}"
printf '\n%s\n' '________________________' >&3
printf "ccenv: checking for ${1}\n\n" >&3
printf "%${ccenv_tool_dlen}.${ccenv_tool_dlen}s" \
"${ccenv_tool_desc} ${mb_line_dots}"
}
ccenv_tool_epilog()
{
ccenv_line_dots='................................'
ccenv_tool_dlen="$((${#ccenv_line_dots} - ${#1}))"
case ${ccenv_tool_dlen} in
0 | -* )
ccenv_tool_dlen='3' ;;
esac
printf "%${ccenv_tool_dlen}.${ccenv_tool_dlen}s %s.\n" \
"${ccenv_line_dots}" "${1}"
if [ "${1}" = 'false' ]; then
printf '\n\nccenv: not (yet) found.\n' >&3
else
printf "\n\nccenv : found $(command -v ${1}).\n" >&3
fi
printf '%s\n' '------------------------' >&3
}
ccenv_tool_variant_epilog()
{
ccenv_expr=${1}='${'${1}':-false}'
eval "$ccenv_expr"
ccenv_expr='${'${1}'}'
eval ccenv_tool_epilog "$ccenv_expr"
}
ccenv_attr_prolog()
{
ccenv_line_dots=' .....................................'
ccenv_attr_desc=" == detect ${ccenv_cfgtype} ${1}"
ccenv_attr_dlen="${#ccenv_line_dots}"
printf "%${ccenv_attr_dlen}.${ccenv_attr_dlen}s" \
"${ccenv_attr_desc} ${ccenv_line_dots}"
printf '\n%s\n' '________________________' >&3
printf "ccenv: detecting ${1}\n\n" >&3
}
ccenv_attr_epilog()
{
ccenv_line_dots='................................'
ccenv_tool_dlen="$((${#ccenv_line_dots} - 1 - ${#1}))"
case ${ccenv_tool_dlen} in
0 | -* )
ccenv_tool_dlen='3' ;;
esac
printf "%${ccenv_tool_dlen}.${ccenv_tool_dlen}s %s.\n" \
"${ccenv_line_dots}" "${1}"
printf '\n\nccenv: detected result: %s\n' "${1}" >&3
printf '%s\n' '------------------------' >&3
}
ccenv_find_tool()
{
if [ -z "$ccenv_prefixes" ]; then
for ccenv_candidate in $(printf '%s' "$ccenv_candidates"); do
ccenv_cmd_args="${@:-}"
if [ -z "$ccenv_cmd_args" ]; then
if command -v "$ccenv_candidate" > /dev/null; then
ccenv_tool="$ccenv_candidate"
return 0
fi
else
if command -v "$ccenv_candidate" > /dev/null; then
if "$ccenv_candidate" $@ > /dev/null 2>&3; then
ccenv_tool="$ccenv_candidate"
return 0
fi
fi
fi
done
ccenv_tool=false
return 0
fi
for ccenv_prefix in $(printf '%s' "$ccenv_prefixes"); do
for ccenv_candidate in $(printf '%s' "$ccenv_candidates"); do
ccenv_tool="$ccenv_prefix$ccenv_candidate"
if command -v "$ccenv_tool" > /dev/null; then
return 0
fi
done
done
for ccenv_candidate in $(printf '%s' "$ccenv_candidates"); do
if command -v "$ccenv_candidate" > /dev/null; then
ccenv_tool="$ccenv_candidate"
return 0
fi
done
ccenv_tool=false
return 0
}
ccenv_set_primary_tools()
{
ccenv_core_tools="ar nm objdump ranlib size strip strings objcopy"
ccenv_hack_tools="addr2line cov elfedit readelf readobj otool"
ccenv_peep_tools="perk mdso dlltool windmc windres"
for __tool in $(printf '%s' "$ccenv_core_tools $ccenv_hack_tools $ccenv_peep_tools"); do
ccenv_tool_prolog "$__tool"
if [ -n "$mb_agnostic" ]; then
ccenv_candidates=" $__tool"
elif [ -n "$mb_zealous" ]; then
ccenv_candidates="$mb_zealous-$__tool"
elif [ "$mb_toolchain" = 'gcc' ]; then
ccenv_candidates="gcc-$__tool"
ccenv_candidates="$ccenv_candidates $__tool"
ccenv_candidates="$ccenv_candidates llvm-$__tool"
elif [ "$mb_toolchain" = 'llvm' ]; then
ccenv_candidates="llvm-$__tool"
ccenv_candidates="$ccenv_candidates $__tool"
ccenv_candidates="$ccenv_candidates gcc-$__tool"
elif [ -n "$mb_toolchain" ]; then
ccenv_candidates="$mb_toolchain-$__tool"
ccenv_candidates="$ccenv_candidates $__tool"
ccenv_candidates="$ccenv_candidates gcc-$__tool"
ccenv_candidates="$ccenv_candidates llvm-$__tool"
else
ccenv_candidates="$__tool"
ccenv_candidates="$ccenv_candidates gcc-$__tool"
ccenv_candidates="$ccenv_candidates llvm-$__tool"
fi
if [ "$ccenv_cfgtype" = 'host' ]; then
ccenv_var_prefix='mb_'
else
ccenv_var_prefix='mb_native_'
fi
ccenv_var_name=$ccenv_var_prefix$__tool
ccenv_var_expr='${'$ccenv_var_name':-}'
eval ccenv_var_val=$ccenv_var_expr
if [ -n "$ccenv_var_val" ]; then
eval ccenv_$__tool="$ccenv_var_val"
else
ccenv_find_tool
eval ccenv_$__tool="$ccenv_tool"
fi
ccenv_tool_epilog "$ccenv_tool"
done
# windrc
ccenv_windrc="$ccenv_windres"
# archive format preamble
if [ -n "$ccenv_dumpmachine_switch" ]; then
ccenv_libgcc_a_header=$(od -b -N8 \
$($ccenv_cc -print-file-name=libgcc.a) \
| head -n1)
else
ccenv_libgcc_a_header=
fi
# ar (default)
ccenv_cc_arfmt='common'
# ar (big)
ccenv_bigaf_header=$(printf '%s\n' '<bigaf>' | od -b | head -n1)
if [ "$ccenv_libgcc_a_header" = "$ccenv_bigaf_header" ]; then
ccenv_cc_arfmt='bigaf'
for __tool in $(printf '%s' "$ccenv_core_tools"); do
ccenv_var_name=ccenv_$__tool
ccenv_var_expr='${'$ccenv_var_name':-}'
eval ccenv_var_val="$ccenv_var_expr"
if [ "$ccenv_var_val" != false ]; then
ccenv_var_val="$ccenv_var_val -X64"
ccenv_var_expr='${ccenv_var_val:-}'
eval ccenv_$__tool="$ccenv_var_expr"
fi
done
fi
# ar (small)
ccenv_aiaff_header=$(printf '%s\n' '<aiaff>' | od -b | head -n1)
if [ "$ccenv_libgcc_a_header" = "$ccenv_aiaff_header" ]; then
ccenv_cc_arfmt='aiaff'
for __tool in $(printf '%s' "$ccenv_core_tools"); do
ccenv_var_name=ccenv_$__tool
ccenv_var_expr='${'$ccenv_var_name':-}'
eval ccenv_var_val="$ccenv_var_expr"
if [ "$ccenv_var_val" != false ]; then
ccenv_var_val="$ccenv_var_val -X32"
ccenv_var_expr='${ccenv_var_val:-}'
eval ccenv_$__tool="$ccenv_var_expr"
fi
done
fi
}
ccenv_set_tool_variants()
{
# as (asm)
ccenv_tool_prolog 'as (asm)'
ccenv_candidates=as
ccenv_find_tool
if [ "$ccenv_tool" = false ]; then
ccenv_as_asm=
else
$ccenv_tool --help 2>&1 | grep -i '.bc assembler' \
|| ccenv_as_asm="$ccenv_tool"
fi
ccenv_tool_variant_epilog 'ccenv_as_asm'
# as (ll)
ccenv_tool_prolog 'as (ll)'
ccenv_candidates=llvm-as
ccenv_find_tool
if [ "$ccenv_tool" != false ]; then
ccenv_as_ll="$ccenv_tool"
fi
ccenv_tool_variant_epilog 'ccenv_as_ll'
# as (mc)
ccenv_tool_prolog 'as (mc)'
ccenv_candidates=llvm-mc
ccenv_find_tool
if [ "$ccenv_tool" != false ]; then
ccenv_as_mc="$ccenv_tool"
fi
ccenv_tool_variant_epilog 'ccenv_as_mc'
# ld (bfd)
ccenv_tool_prolog 'ld (bfd)'
ccenv_candidates=ld.bfd
ccenv_find_tool
if [ "$ccenv_tool" != false ]; then
ccenv_ld_bfd="$ccenv_tool"
fi
ccenv_tool_variant_epilog 'ccenv_ld_bfd'
# ld (gold)
ccenv_tool_prolog 'ld (gold)'
ccenv_candidates=ld.gold
ccenv_find_tool
if [ "$ccenv_tool" != false ]; then
ccenv_ld_gold="$ccenv_tool"
fi
ccenv_tool_variant_epilog 'ccenv_ld_gold'
# ld (lld)
ccenv_tool_prolog 'ld (lld)'
ccenv_candidates=lld
ccenv_find_tool
if [ "$ccenv_tool" != false ]; then
ccenv_ld_lld="$ccenv_tool"
fi
ccenv_tool_variant_epilog 'ccenv_ld_lld'
# objdump (bfd)
ccenv_tool_prolog 'objdump (bfd)'
ccenv_candidates=objdump
ccenv_find_tool
if $ccenv_tool --version | grep -i Binutils > /dev/null; then
ccenv_objdump_bfd="$ccenv_tool"
fi
ccenv_tool_variant_epilog 'ccenv_objdump_bfd'
# objdump (llvm)
ccenv_tool_prolog 'objdump (llvm)'
ccenv_candidates=llvm-objdump
ccenv_find_tool
if $ccenv_tool --version | grep -i LLVM > /dev/null; then
ccenv_objdump_llvm="$ccenv_tool"
fi
ccenv_tool_variant_epilog 'ccenv_objdump_llvm'
# readelf (bfd)
ccenv_tool_prolog 'readelf (bfd)'
ccenv_candidates=readelf
ccenv_find_tool
if $ccenv_tool --version | grep -i Binutils > /dev/null; then
ccenv_readelf_bfd="$ccenv_tool"
fi
ccenv_tool_variant_epilog 'ccenv_readelf_bfd'
# readelf (llvm)
ccenv_tool_prolog 'readelf (llvm)'
ccenv_candidates=llvm-readelf
ccenv_find_tool
if $ccenv_tool --version | grep -i LLVM > /dev/null; then
ccenv_readelf_llvm="$ccenv_tool"
fi
ccenv_tool_variant_epilog 'ccenv_readelf_llvm'
# as
if [ -n "$ccenv_cc" ]; then
ccenv_as='$('"$ccenv_makevar_prefix"'CC) -c -x assembler'
elif [ -n "$mb_agnostic" ]; then
ccenv_as='$('"$ccenv_makevar_prefix"'AS_ASM)'
elif [ "$mb_zealous" = 'gcc' ]; then
ccenv_as='$('"$ccenv_makevar_prefix"'AS_ASM)'
elif [ -n "$mb_zealous" = 'llvm' ]; then
ccenv_as='$('"$ccenv_makevar_prefix"'AS_MC)'
elif [ "$mb_toolchain" = 'gcc' ]; then
ccenv_as='$('"$ccenv_makevar_prefix"'AS_ASM)'
elif [ "$mb_toolchain" = 'llvm' ]; then
ccenv_as='$('"$ccenv_makevar_prefix"'AS_MC)'
fi
# ld
if [ -n "$ccenv_cc" ]; then
ccenv_ld='$('"$ccenv_makevar_prefix"'CC) -nostdlib -nostartfiles'
fi
}
ccenv_set_c_compiler_candidates()
{
if [ -n "$mb_compiler" ]; then
ccenv_candidates="$mb_compiler"
elif [ -n "$mb_agnostic" ]; then
ccenv_candidates="c99 c11 cc"
elif [ "$mb_zealous" = 'gcc' ]; then
ccenv_candidates="gcc"
elif [ "$mb_zealous" = 'llvm' ]; then
ccenv_candidates="clang"
elif [ "$mb_toolchain" = 'gcc' ]; then
ccenv_candidates="gcc c99 c11 cc clang"
elif [ "$mb_toolchain" = 'llvm' ]; then
ccenv_candidates="clang c99 c11 cc gcc"
elif [ -n "$mb_toolchain" ]; then
ccenv_candidates="$mb_toolchain c99 c11 cc gcc clang"
else
ccenv_candidates="cc gcc clang c99 c11"
fi
}
ccenv_set_cc()
{
ccenv_tool_prolog 'C compiler'
if [ -z "$ccenv_cc" ]; then
ccenv_set_c_compiler_candidates
ccenv_find_tool
ccenv_cc="$ccenv_tool"
fi
if [ "$ccenv_cc" = false ] && [ -n "$mb_compiler" ]; then
ccenv_cc="$mb_compiler"
fi
ccenv_tool_epilog "$ccenv_cc"
if [ $ccenv_cfgtype = 'host' ]; then
ccenv_host_cc="$ccenv_cc"
cfgtest_host_section
ccenv_host_cc=
else
ccenv_native_cc="$ccenv_cc"
cfgtest_native_section
ccenv_native_cc=
fi
if cfgtest_compiler_switch -dumpmachine ; then
ccenv_dumpmachine_switch='-dumpmachine'
else
ccenv_dumpmachine_switch=
fi
ccenv_cc_cmd="$ccenv_cc"
ccenv_errors=
if [ "$ccenv_cfgtype" = 'native' ]; then
if [ -n "$ccenv_dumpmachine_switch" ]; then
ccenv_host=$(eval $ccenv_cc $(printf '%s' "$ccenv_cflags") \
$ccenv_dumpmachine_switch 2>&3)
else
ccenv_host=$(printf '%s' $(uname -m)-$(uname -p)-$(uname -o)) \
| tr '[[:upper:]]' '[[:lower:]]'
fi
ccenv_cchost=$ccenv_host
return 0
fi
if [ -n "$mb_cchost" ]; then
ccenv_host="$mb_cchost"
elif [ -n "$mb_host" ]; then
ccenv_host="$mb_host"
else
ccenv_host=
fi
if [ -z "$ccenv_host" ] && [ -n "$ccenv_dumpmachine_switch" ]; then
ccenv_host=$(eval $ccenv_cc $(printf '%s' "$ccenv_cflags") \
$ccenv_dumpmachine_switch 2>&3)
ccenv_cchost=$ccenv_host
elif [ -z "$ccenv_host" ]; then
# assume that no -dumpmachine support means native build (fixme)
ccenv_host=$(printf '%s' $(uname -m)-$(uname -p)-$(uname -o)) \
| tr '[[:upper:]]' '[[:lower:]]' 2>&3
ccenv_cchost=$ccenv_host
elif [ -n "$ccenv_dumpmachine_switch" ]; then
ccenv_tmp=$(mktemp ./tmp_XXXXXXXXXXXXXXXX)
ccenv_cmd="$ccenv_cc --target=$ccenv_host -E -xc -"
if [ -z "$mb_user_cc" ]; then
$(printf %s "$ccenv_cmd") < /dev/null > /dev/null \
2>"$ccenv_tmp" || true
ccenv_errors=$(cat "$ccenv_tmp")
if [ -z "$ccenv_errors" ]; then
ccenv_tool_prolog 'C compiler for host'
ccenv_tflags="--target=$ccenv_host"
ccenv_cc="$ccenv_cc $ccenv_tflags"
ccenv_tool_epilog "$ccenv_cc"
else
printf '%s' "$ccenv_errors" >&3
fi
fi
rm -f "$ccenv_tmp"
unset ccenv_tmp
ccenv_cchost=$(eval $ccenv_cc $(printf '%s' "$ccenv_cflags") \
$ccenv_dumpmachine_switch 2>&3)
fi
if [ "$ccenv_cchost" != "$ccenv_host" ]; then
printf 'error!\n' >&2
printf 'ccenv:\n' >&2
printf 'ccenv: ccenv_host: %s \n' $ccenv_host >&2
printf 'ccenv: ccenv_cchost: %s \n' $ccenv_cchost >&2
if [ -z "$ccenv_tflags" ]; then
printf 'ccenv:\n' >&2
printf 'ccenv: ccenv_host and ccenv_cchost do not match, most likely because:\n' >&2
printf 'ccenv: (1) you explicitly set CC (or passed --compiler=...)\n' >&2
printf 'ccenv: (2) the selected compiler does not accept --target=...\n' >&2
printf 'ccenv: (3) the host reported by -dumpmachine differs from the one you requested.\n' >&2
fi
if [ -n "$ccenv_errors" ]; then
printf 'ccenv:\n' >&2
printf 'ccenv: something went wrong, see the command and compiler message below.\n\n' >&2
printf 'cmd: %s < /dev/null > /dev/null\n' "$ccenv_cmd" >&2
printf '%s\n\n' "$ccenv_errors" >&2
else
printf 'ccenv:\n' >&2
printf 'ccenv: something went wrong, bailing out.\n\n' >&2
fi
return 2
fi
}
ccenv_set_cpp()
{
ccenv_tool_prolog 'C pre-processor'
case "$ccenv_cc_cmd" in
cc | c99 | c11 | gcc)
ccenv_cpp_prefix=
ccenv_candidates="cpp" ;;
clang )
ccenv_cpp_prefix=
ccenv_candidates="clang-cpp" ;;
*-cc )
ccenv_cpp_prefix=${ccenv_cc_cmd%-cc*}-
ccenv_candidates="${ccenv_cpp_prefix}cpp" ;;
*-c99 )
ccenv_cpp_prefix=${ccenv_cc_cmd%-c99*}-
ccenv_candidates="${ccenv_cpp_prefix}cpp" ;;
*-c11 )
ccenv_cpp_prefix=${ccenv_cc_cmd%-c11*}-
ccenv_candidates="${ccenv_cpp_prefix}cpp" ;;
*-gcc )
ccenv_cpp_prefix=${ccenv_cc_cmd%-gcc*}-
ccenv_candidates="${ccenv_cpp_prefix}cpp" ;;
*-clang )
ccenv_cpp_prefix=${ccenv_cc_cmd%-clang*}-
ccenv_candidates="${ccenv_cpp_prefix}clang-cpp" ;;
* )
ccenv_cpp="$ccenv_cc -E"
ccenv_tool_epilog "$ccenv_cpp"
return 0
esac
ccenv_find_tool
if [ "$ccenv_tool" = false ]; then
ccenv_cpp="$ccenv_cc -E"
elif [ -n "$ccenv_tflags" ]; then
ccenv_cpp="$ccenv_tool $ccenv_tflags"
else
ccenv_cpp="$ccenv_tool"
fi
ccenv_tool_epilog "$ccenv_cpp"
}
ccenv_set_cxx()
{
ccenv_tool_prolog 'C++ compiler'
case "$ccenv_cc_cmd" in
cc | c99 | c11 )
ccenv_cxx_prefix=
ccenv_candidates="cxx c++" ;;
gcc )
ccenv_cxx_prefix=
ccenv_candidates="g++" ;;
clang )
ccenv_cxx_prefix=
ccenv_candidates="clang++" ;;
*-gcc )
ccenv_cxx_prefix=${ccenv_cc_cmd%-gcc*}-
ccenv_candidates="${ccenv_cxx_prefix}g++" ;;
*-clang )
ccenv_cxx_prefix=${ccenv_cc_cmd%-clang*}-
ccenv_candidates="${ccenv_cxx_prefix}clang++" ;;
/*cc | /*c99 | /*c11 )
ccenv_cxx_prefix=${ccenv_cc_cmd%/*}
ccenv_candidates="${ccenv_cxx_prefix}/cxx"
ccenv_candidates="${ccenv_candidates} ${ccenv_cxx_prefix}/c++" ;;
/*gcc )
ccenv_cxx_prefix=${ccenv_cc_cmd%/*}
ccenv_candidates="${ccenv_cxx_prefix}/g++" ;;
/*clang )
ccenv_cxx_prefix=${ccenv_cc_cmd%/*}
ccenv_candidates="${ccenv_cxx_prefix}/clang++" ;;
* )
ccenv_cxx="$ccenv_cc -xc++"
ccenv_tool_epilog "$ccenv_cxx"
return 0
esac
ccenv_find_tool
if [ "$ccenv_tool" = false ]; then
ccenv_cxx="$ccenv_cc -xc++"
elif [ -n "$ccenv_tflags" ]; then
ccenv_cxx="$ccenv_tool $ccenv_tflags"
else
ccenv_cxx="$ccenv_tool"
fi
ccenv_tool_epilog "$ccenv_cxx"
}
ccenv_set_cc_host()
{
ccenv_attr_prolog 'system'
ccenv_cc_host="$ccenv_cchost"
ccenv_attr_epilog "$ccenv_cc_host"
}
ccenv_set_cc_bits()
{
ccenv_attr_prolog 'bits'
ccenv_internal_size=
ccenv_internal_type='void *'
ccenv_internal_test='char x[(sizeof(%s) == %s/8) ? 1 : -1];'
for ccenv_internal_guess in 64 32 128; do
if [ -z "${ccenv_internal_size:-}" ]; then
ccenv_internal_str=$(printf "$ccenv_internal_test" \
"$ccenv_internal_type" \
"$ccenv_internal_guess")
printf '%s' "$ccenv_internal_str" \
| eval $ccenv_cc -S -xc - -o - \
$(printf '%s' "$ccenv_cflags") \
> /dev/null 2>&3 \
&& ccenv_internal_size=$ccenv_internal_guess
fi
done
ccenv_cc_bits=$ccenv_internal_size
ccenv_attr_epilog "$ccenv_cc_bits"
}
ccenv_set_cc_underscore()
{
ccenv_attr_prolog 'prepended underscores'
ccenv_fn_name='ZmYaXyWbVe_UuTnSdReQrPsOcNoNrLe'
ccenv_fn_code='int %s(void){return 0;}'
if printf "$ccenv_fn_code" $ccenv_fn_name \
| $ccenv_cc -xc - -S -o - \
| grep "^_$ccenv_fn_name:" \
> /dev/null; then
ccenv_cc_underscore='_'
ccenv_attr_epilog 'yes'
fi
ccenv_attr_epilog 'no'
return 0
}
ccenv_create_framework_executable()
{
if [ -f $ccenv_image ]; then
mv $ccenv_image $ccenv_image.tmp
rm -f $ccenv_image.tmp
fi
printf 'int main(void){return 0;}' \
| $ccenv_cc -xc - \
-o $ccenv_image \
2>/dev/null \
|| return 1
return 0
}
ccenv_create_freestanding_executable()
{
if [ -f $ccenv_image ]; then
mv $ccenv_image $ccenv_image.tmp
rm -f $ccenv_image.tmp
fi
if [ -z "ccenv_cc_underscore" ]; then
ccenv_start_fn='_start'
else
ccenv_start_fn='start'
fi
printf 'int %s(void){return 0;}' "$ccenv_start_fn" \
| $ccenv_cc -xc - \
-ffreestanding \
-nostdlib -nostartfiles \
-o $ccenv_image \
|| return 1
ccenv_freestd=yes
return 0
}
ccenv_set_cc_binfmt_error()
{
ccenv_attr_epilog '(unable to create executable)'
}
ccenv_set_cc_binfmt()
{
ccenv_use_perk=
ccenv_use_otool=
ccenv_use_readelf=
ccenv_use_readobj=
ccenv_use_bfd_objdump=
ccenv_use_llvm_objdump=
ccenv_attr_prolog 'binary format'
ccenv_create_framework_executable \
|| ccenv_create_freestanding_executable \
|| ccenv_set_cc_binfmt_error \
|| return 0
# PE / perk
if [ -n "$ccenv_perk" ]; then
if $ccenv_perk $ccenv_image 2>&3; then
ccenv_cc_binfmt='PE'
ccenv_use_perk=yes
fi
fi
# ELF / readelf
if [ -n "$ccenv_readelf" ] && [ -z "$ccenv_cc_binfmt" ]; then
if $ccenv_readelf -h $ccenv_image 2>&3 \
| grep 'Magic:' | sed -e 's/[ ]*//g' \
| grep 'Magic:7f454c46' \
> /dev/null; then
ccenv_cc_binfmt='ELF'
ccenv_use_readelf=yes
fi
fi
# a marble of astonishing design:
# llvm-readelf also parses PE and Mach-O
if [ -n "$ccenv_readelf_llvm" ]; then
ccenv_readany="$ccenv_readelf_llvm"
else
ccenv_readany="$ccenv_readelf"
fi
# PE / readelf
if [ -n "$ccenv_readany" ] && [ -z "$ccenv_cc_binfmt" ]; then
if $ccenv_readany -h $ccenv_image 2>&3 \
| grep 'Magic:' | sed -e 's/[ ]*//g' \
| grep 'Magic:MZ' \
> /dev/null; then
ccenv_cc_binfmt='PE'
ccenv_use_readelf=yes
fi
fi
# MACHO-64 / otool
if [ -n "$ccenv_otool" ] && [ -z "$ccenv_cc_binfmt" ]; then
if $ccenv_otool -hv $ccenv_image 2>&3 \
| grep -i 'MH_MAGIC_64' \
> /dev/null; then
ccenv_cc_binfmt='MACHO'
ccenv_use_otool=yes
fi
fi
# MACHO-32 / otool
if [ -n "$ccenv_otool" ] && [ -z "$ccenv_cc_binfmt" ]; then
if $ccenv_otool -hv $ccenv_image 2>&3 \
| grep -i 'MH_MAGIC' \
> /dev/null; then
ccenv_cc_binfmt='MACHO'
ccenv_use_otool=yes
fi
fi
# MACHO-64 / readelf
if [ -n "$ccenv_readany" ] && [ -z "$ccenv_cc_binfmt" ]; then
if $ccenv_readany -h $ccenv_image 2>&3 \
| grep -i 'Magic:' | sed -e 's/[ ]*//g' \
| grep -i '(0xfeedfacf)' \
> /dev/null; then
ccenv_cc_binfmt='MACHO'
ccenv_use_readelf=yes
fi
fi
# MACHO-32 / readelf
if [ -n "$ccenv_readany" ] && [ -z "$ccenv_cc_binfmt" ]; then
if $ccenv_readany -h $ccenv_image 2>&3 \
| grep -i 'Magic:' | sed -e 's/[ ]*//g' \
| grep -i '(0xcafebabe)' \
> /dev/null; then
ccenv_cc_binfmt='MACHO'
ccenv_use_readelf=yes
fi
fi
# MACHO / readobj
if [ -n "$ccenv_readobj" ] && [ -z "$ccenv_cc_binfmt" ]; then
if $ccenv_readobj $ccenv_image 2>&3 \
| grep -i 'Format:' \
| sed -e 's/ /_/g' \
| grep -i '_Mach-O_' \
> /dev/null; then
ccenv_cc_binfmt='MACHO'
ccenv_use_readobj=yes
fi
fi
# MACHO / objdump (llvm)
if [ -n "$ccenv_objdump" ] && [ -z "$ccenv_cc_binfmt" ]; then
if $ccenv_objdump -section-headers $ccenv_image \
2>&3 \
| grep -i 'file format Mach-O' \
> /dev/null; then
ccenv_cc_binfmt='MACHO'
ccenv_use_objdump=yes
fi
fi
# MACHO / objdump (bfd)
if [ -n "$ccenv_objdump" ] && [ -z "$ccenv_cc_binfmt" ]; then
$ccenv_objdump -h $ccenv_image 2>&3 \
| grep -i 'file format Mach-O' \
> /dev/null \
&& ccenv_cc_binfmt='MACHO' \
&& ccenv_use_objdump=yes
fi
# PE / objdump (bfd)
if [ -n "$ccenv_objdump" ] && [ -z "$ccenv_cc_binfmt" ]; then
if $ccenv_objdump -h $ccenv_image 2>&3 \
| grep -i 'file format pei-' \
> /dev/null; then
ccenv_cc_binfmt='PE'
ccenv_use_bfd_objdump=yes
fi
fi
ccenv_attr_epilog "$ccenv_cc_binfmt"
}
ccenv_set_os_pe()
{
if [ -n "$ccenv_freestd" ]; then
case "$ccenv_cchost" in
*-midipix | *-midipix-* )
ccenv_os='midipix' ;;
*-mingw | *-mingw32 | *-mingw64 )
ccenv_os='mingw' ;;
*-mingw-* | *-mingw32-* | *-mingw64 )
ccenv_os='mingw' ;;
*-msys | *-msys2 | *-msys-* | *-msys2-* )
ccenv_os='msys' ;;
*-cygwin | *-cygwin-* )
ccenv_os='cygwin' ;;
esac
fi
if [ -n "$ccenv_os" ]; then
return 0
fi
if [ -n "$ccenv_use_perk" ]; then
ccenv_framework=$($ccenv_perk -y $ccenv_image)
ccenv_os=${ccenv_framework#*-*-*-*}
fi
if [ -z "$ccenv_os" ] && [ -n "$ccenv_objdump_bfd" ]; then
$ccenv_objdump_bfd -x $ccenv_image | grep -i 'DLL Name' \
| grep 'cygwin1.dll' > /dev/null \
&& ccenv_os='cygwin'
fi
if [ -z "$ccenv_os" ] && [ -n "$ccenv_objdump_bfd" ]; then
$ccenv_objdump_bfd -x $ccenv_image | grep -i 'DLL Name' \
| grep 'msys-2.0.dll' > /dev/null \
&& ccenv_os='msys'
fi
if [ -z "$ccenv_os" ] && [ -n "$ccenv_objdump_bfd" ]; then
$ccenv_objdump_bfd -x $ccenv_image \
| grep -i 'DLL Name' | grep '.CRT' \
> /dev/null \
&& $ccenv_objdump_bfd -x $ccenv_image \
| grep -i 'DLL Name' | grep '.bss' \
> /dev/null \
&& $ccenv_objdump_bfd -x $ccenv_image \
| grep -i 'DLL Name' | grep '.tls' \
> /dev/null \
&& ccenv_os='mingw'
fi
}
ccenv_set_os_macho()
{
case "$ccenv_cchost" in
*-apple-darwin* )
ccenv_os='darwin' ;;
esac
}
ccenv_set_os()
{
ccenv_attr_prolog 'os name'
case "$ccenv_cc_binfmt" in
PE )
ccenv_set_os_pe ;;
MACHO )
ccenv_set_os_macho ;;
esac
if [ -n "$ccenv_os" ]; then
ccenv_attr_epilog "$ccenv_os"
return 0
fi
case "$ccenv_cchost" in
*-*-*-* )
ccenv_tip=${ccenv_cchost%-*}
ccenv_os=${ccenv_tip#*-*-}
;;
*-*-musl | *-*-gnu )
ccenv_tip=${ccenv_cchost%-*}
ccenv_os=${ccenv_tip#*-}
;;
*-*-* )
ccenv_os=${ccenv_cchost#*-*-}
;;
*-* )
ccenv_os=${ccenv_cchost#*-}
;;
esac
if [ -z "$ccenv_os" ]; then
ccenv_os='anyos'
fi
ccenv_attr_epilog "$ccenv_os"
}
ccenv_set_os_flags()
{
case "$ccenv_os" in
darwin )
ccenv_cflags_os='-D_DARWIN_C_SOURCE'
ccenv_cflags_pic='-fPIC'
;;
midipix )
ccenv_cflags_os=
ccenv_cflags_pic='-fPIC'
;;
cygwin )
ccenv_cflags_os=
ccenv_cflags_pic=
;;
msys | msys* | mingw | mingw* )
ccenv_cflags_os='-U__STRICT_ANSI__'
ccenv_cflags_pic=
;;
* )
ccenv_cflags_os=
ccenv_cflags_pic='-fPIC'
;;
esac
}
ccenv_set_os_semantics()
{
# binary_format - core_api - ex_api - dependency_resolution
ccenv_attr_prolog 'os semantics'
case "$ccenv_os" in
linux )
ccenv_os_semantics='elf-posix-linux-ldso'
;;
bsd )
ccenv_os_semantics='elf-posix-bsd-ldso'
;;
darwin )
ccenv_os_semantics='macho-posix-osx-ldso'
;;
midipix )
ccenv_os_semantics='pe-posix-winnt-ldso'
;;
cygwin )
ccenv_os_semantics='pe-hybrid-winnt-unsafe'
;;
msys )
ccenv_os_semantics='pe-hybrid-winnt-unsafe'
;;
mingw )
ccenv_os_semantics='pe-win32-winnt-unsafe'
;;
esac
if [ -n "$ccenv_os_semantics" ]; then
ccenv_attr_epilog "$ccenv_os_semantics"
return 0
fi
if [ -n "$ccenv_cc_binfmt" ]; then
ccenv_os_semantics_pattern='%s-posix-anyos-unknown'
ccenv_os_semantics=$(printf \
"$ccenv_os_semantics_pattern" \
"$ccenv_cc_binfmt" \
| tr '[:upper:]' '[:lower:]')
else
ccenv_os_semantics='unknown-posix-anyos-unknown'
fi
ccenv_attr_epilog "$ccenv_os_semantics"
}
ccenv_set_os_dso_format()
{
ccenv_attr_prolog 'os dso format'
case "$ccenv_cc_arfmt" in
common )
ccenv_cc_sofmt="$ccenv_cc_binfmt"
;;
bigaf )
ccenv_libgcc_s_a_header=$(od -b -N8 \
$($ccenv_cc -print-file-name=libgcc_s.a) \
2>/dev/null \
| head -n1)
ccenv_libgcc_s_so_header=$(od -b -N8 \
$($ccenv_cc -print-file-name=libgcc_s.so) \
2>/dev/null \
| head -n1)
if [ "$ccenv_libgcc_s_a_header" = "$ccenv_bigaf_header" ]; then
ccenv_cc_sofmt='bigaf'
elif [ "$ccenv_libgcc_s_so_header" = "$ccenv_bigaf_header" ]; then
ccenv_cc_sofmt='bigaf'
else
ccenv_cc_sofmt="$ccenv_cc_binfmt"
fi
;;
aiaff )
ccenv_libgcc_s_a_header=$(od -b -N8 \
$($ccenv_cc -print-file-name=libgcc_s.a) \
| head -n1)
ccenv_libgcc_s_so_header=$(od -b -N8 \
$($ccenv_cc -print-file-name=libgcc_s.so) \
| head -n1)
if [ "$ccenv_libgcc_s_a_header" = "$ccenv_aiaff_header" ]; then
ccenv_cc_sofmt='aiaff'
elif [ "$ccenv_libgcc_s_so_header" = "$ccenv_aiaff_header" ]; then
ccenv_cc_sofmt='aiaff'
else
ccenv_cc_sofmt="$ccenv_cc_binfmt"
fi
;;
esac
if [ "$ccenv_cfgtype" = 'host' ]; then
case "$ccenv_cc_sofmt" in
bigaf | aiaff )
mb_shared_lib_cmd='$(AR) -rcs'
mb_shared_lib_ldflags=
;;
* )
mb_shared_lib_cmd='$(CC) -shared -o'
mb_shared_lib_ldflags='$(LDFLAGS_SHARED)'
;;
esac
fi
ccenv_attr_epilog "$ccenv_cc_sofmt"
}
ccenv_set_os_dso_exrules()
{
ccenv_attr_prolog 'os dso exrules'
case "$ccenv_os" in
midipix )
ccenv_os_dso_exrules='pe-mdso'
;;
* )
if [ "$ccenv_cc_binfmt" = 'PE' ]; then
ccenv_os_dso_exrules='pe-dlltool'
else
ccenv_os_dso_exrules='default'
fi
esac
ccenv_attr_epilog "$ccenv_os_dso_exrules"
}
ccenv_set_os_dso_linkage()
{
# todo: PIC, PIE, and friends
ccenv_attr_prolog 'os linkage'
ccenv_os_dso_linkage='default'
ccenv_attr_epilog "$ccenv_os_dso_linkage"
}
ccenv_set_os_dso_patterns_darwin()
{
ccenv_os_app_prefix=
ccenv_os_app_suffix=
ccenv_os_lib_prefix=lib
ccenv_os_lib_suffix=.dylib
ccenv_os_implib_ext=.invalid
ccenv_os_libdef_ext=.invalid
ccenv_os_archive_ext=.a
ccenv_os_soname=symlink
ccenv_os_lib_prefixed_suffix=
ccenv_os_lib_suffixed_suffix='$(OS_LIB_SUFFIX)'
}
ccenv_set_os_dso_patterns_mdso()
{
ccenv_os_app_prefix=
ccenv_os_app_suffix=
ccenv_os_lib_prefix=lib
ccenv_os_lib_suffix=.so
ccenv_os_implib_ext=.lib.a
ccenv_os_libdef_ext=.so.def
ccenv_os_archive_ext=.a
ccenv_os_soname=symlink
ccenv_os_lib_prefixed_suffix='$(OS_LIB_SUFFIX)'
ccenv_os_lib_suffixed_suffix=
}
ccenv_set_os_dso_patterns_dlltool()
{
ccenv_os_app_prefix=
ccenv_os_app_suffix=.exe
ccenv_os_lib_prefix=lib
ccenv_os_lib_suffix=.dll
ccenv_os_implib_ext=.dll.a
ccenv_os_libdef_ext=.def
ccenv_os_archive_ext=.a
ccenv_os_soname=copy
ccenv_os_lib_prefixed_suffix='$(OS_LIB_SUFFIX)'
ccenv_os_lib_suffixed_suffix=
}
ccenv_set_os_dso_patterns_default()
{
ccenv_os_app_prefix=
ccenv_os_app_suffix=
ccenv_os_lib_prefix=lib
ccenv_os_lib_suffix=.so
ccenv_os_implib_ext=.invalid
ccenv_os_libdef_ext=.invalid
ccenv_os_archive_ext=.a
ccenv_os_soname=symlink
ccenv_os_lib_prefixed_suffix='$(OS_LIB_SUFFIX)'
ccenv_os_lib_suffixed_suffix=
}
ccenv_set_os_dso_patterns()
{
# sover: .so.x.y.z
# verso: .x.y.z.so
case "$ccenv_os" in
darwin )
ccenv_set_os_dso_patterns_darwin
;;
midipix )
ccenv_set_os_dso_patterns_mdso
;;
cygwin | msys | mingw )
ccenv_set_os_dso_patterns_dlltool
;;
* )
ccenv_set_os_dso_patterns_default
;;
esac
}
ccenv_set_os_pe_switches()
{
if [ "$ccenv_cc_binfmt" = 'PE' ] && [ -z "$ccenv_pe_subsystem" ]; then
case "$ccenv_os" in
midipix | mingw )
ccenv_pe_subsystem='windows'
;;
* )
ccenv_pe_subsystem='console'
;;
esac
fi
}
ccenv_output_defs()
{
ccenv_in="$mb_project_dir/sofort/ccenv/ccenv.in"
ccenv_mk="$mb_pwd/ccenv/$ccenv_cfgtype.mk"
ccenv_tmp=
if [ "$ccenv_cc_binfmt" = 'PE' ]; then
ccenv_pe="$mb_project_dir/sofort/ccenv/pedefs.in"
ccenv_in="$ccenv_in $ccenv_pe"
fi
if [ $ccenv_cfgtype = 'native' ]; then
ccenv_tmp=$(mktemp ./tmp_XXXXXXXXXXXXXXXX)
sed \
-e 's/^[[:space:]]*$/@/g' \
-e 's/^/NATIVE_/' \
-e 's/NATIVE_@//g' \
-e 's/NATIVE_#/#/g' \
-e 's/ =/=/g' \
-e 's/ +=/+=/g' \
$(printf '%s ' $ccenv_in) \
> "$ccenv_tmp"
ccenv_in="$ccenv_tmp"
else
unset ccenv_tmp
fi
ccenv_var_defs=
ccenv_sed_substs=
ccenv_vars=$(cut -d'=' -f1 "$mb_project_dir/sofort/ccenv/ccenv.vars" \
| grep -v '^#');
ccenv_exvars="ccenv_cfgtype ccenv_makevar_prefix"
for __var in $(printf '%s' "$ccenv_vars $ccenv_exvars"); do
ccenv_sed_subst=$(printf '%s %s%s%s' \
'-e' "'s^@$__var@" \
"^___${__var}___" \
"^g'")
ccenv_sed_substs="$ccenv_sed_substs $ccenv_sed_subst"
ccenv_var_def=$(printf '%s%s="${%s}"' "-D" "___${__var}___" "${__var}")
eval ccenv_var_defs='"$ccenv_var_defs "$ccenv_var_def'
done
eval sed $ccenv_sed_substs $(printf '%s ' $ccenv_in) \
| eval m4 $ccenv_var_defs - \
| sed -e 's/[[:blank:]]*$//g' \
> "$ccenv_mk"
if [ "$ccenv_cfgtype" = 'host' ]; then
for __var in $(printf '%s' "$ccenv_vars"); do
ccenv_src_var=$__var
ccenv_dst_var=mb_${__var#*ccenv_}
ccenv_var_expr='${'$ccenv_src_var':-}'
eval $ccenv_dst_var=$ccenv_var_expr
done
mb_host=$ccenv_host
mb_cchost=$ccenv_cchost
else
for __var in $(printf '%s' "$ccenv_vars"); do
ccenv_src_var=$__var
ccenv_dst_var=mb_native_${__var#*ccenv_}
ccenv_var_expr='${'$ccenv_src_var':-}'
eval "$ccenv_dst_var=$ccenv_var_expr"
done
mb_native_host=$ccenv_host
mb_native_cchost=$ccenv_cchost
fi
if [ -n "${ccenv_tmp:-}" ]; then
rm -f "$ccenv_tmp"
unset ccenv_tmp
fi
}
ccenv_dso_verify()
{
ccenv_str='int foo(int x){return ++x;}'
ccenv_cmd="$ccenv_cc -xc - -shared -o a.out"
rm -f a.out
printf '%s' "$ccenv_str" | $(printf %s "$ccenv_cmd") \
> /dev/null 2>&3 \
|| mb_disable_shared=yes
rm -f a.out
}
ccenv_clean_up()
{
rm -f $ccenv_image
}
ccenv_common_init()
{
. "$mb_project_dir/sofort/ccenv/ccenv.vars"
ccenv_cfgtype=$1
ccenv_cfgfile="$mb_pwd/ccenv/$ccenv_cfgtype.mk"
ccenv_freestd=
ccenv_cchost=
if [ $ccenv_cfgtype = 'native' ]; then
ccenv_makevar_prefix='NATIVE_'
ccenv_image='./ccenv/native.a.out'
else
ccenv_makevar_prefix=
ccenv_image='./ccenv/host.a.out'
fi
if [ $ccenv_cfgtype = 'native' ]; then
ccenv_prefixes=
elif [ -n "$mb_cross_compile" ]; then
ccenv_prefixes="$mb_cross_compile"
elif [ -n "$mb_host" ]; then
ccenv_prefixes="$mb_host-"
else
ccenv_prefixes=
fi
if [ $ccenv_cfgtype = 'host' ]; then
ccenv_tflags=
ccenv_cflags=$(${mb_make} -n -f "$mb_pwd/Makefile.tmp" \
OS_DSO_EXRULES=default \
OS_SONAME=symlink \
OS_ARCHIVE_EXT='.a' \
.cflags-host)
ccenv_cflags="${ccenv_cflags#*: }"
ccenv_cc="$mb_user_cc"
ccenv_cpp="$mb_user_cpp"
ccenv_cxx="$mb_user_cxx"
ccenv_pe_subsystem="$mb_pe_subsystem"
ccenv_pe_image_base="$mb_pe_image_base"
else
ccenv_tflags=
ccenv_cflags=$(${mb_make} -n -f "$mb_pwd/Makefile.tmp" \
OS_DSO_EXRULES=default \
OS_SONAME=symlink \
OS_ARCHIVE_EXT='.a' \
.cflags-native)
ccenv_cflags="${ccenv_cflags#*: }"
ccenv_cc="$mb_native_cc"
ccenv_cpp="$mb_native_cpp"
ccenv_cxx="$mb_native_cxx"
ccenv_pe_subsystem="$mb_native_pe_subsystem"
ccenv_pe_image_base="$mb_native_pe_image_base"
fi
}
ccenv_set_characteristics()
{
ccenv_set_cc_host
ccenv_set_cc_bits
ccenv_set_cc_binfmt
ccenv_set_cc_underscore
}
ccenv_set_toolchain_variables()
{
ccenv_common_init $1
ccenv_set_cc
ccenv_set_cpp
ccenv_set_cxx
ccenv_set_primary_tools
ccenv_set_tool_variants
ccenv_set_characteristics
ccenv_set_os
ccenv_set_os_flags
ccenv_set_os_semantics
ccenv_set_os_dso_format
ccenv_set_os_dso_exrules
ccenv_set_os_dso_linkage
ccenv_set_os_dso_patterns
ccenv_set_os_pe_switches
ccenv_output_defs
ccenv_clean_up
eval 'ccenv_'${ccenv_cfgtype}'_cc'=\'$ccenv_cc\'
}
ccenv_set_host_variables()
{
output_script_status ${mb_script} \
'detect and query host (targeted) system'
ccenv_set_toolchain_variables 'host'
ccenv_dso_verify
}
ccenv_set_native_variables()
{
output_script_status ${mb_script} \
'detect and query native (local build) system'
if [ _$mb_ccenv_skip_native != _yes ]; then
ccenv_set_toolchain_variables 'native'
fi
}