From 352ae66d81ad9c6f1bad1f72425635150a4e9ec7 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Wed, 26 Dec 2018 08:48:48 -0500
Subject: build system: major overhaul: removed sysinfo, integrated ccenv.
---
sofort/ccenv/ccenv.in | 85 ++++
sofort/ccenv/ccenv.sh | 1021 ++++++++++++++++++++++++++++++++++++++++++++++
sofort/ccenv/ccenv.usage | 84 ++++
sofort/ccenv/ccenv.vars | 82 ++++
4 files changed, 1272 insertions(+)
create mode 100644 sofort/ccenv/ccenv.in
create mode 100644 sofort/ccenv/ccenv.sh
create mode 100644 sofort/ccenv/ccenv.usage
create mode 100644 sofort/ccenv/ccenv.vars
(limited to 'sofort/ccenv')
diff --git a/sofort/ccenv/ccenv.in b/sofort/ccenv/ccenv.in
new file mode 100644
index 0000000..531a7dd
--- /dev/null
+++ b/sofort/ccenv/ccenv.in
@@ -0,0 +1,85 @@
+# @ccenv_cfgtype@ system flavor
+OS = @ccenv_os@
+OS_SEMANTICS = @ccenv_os_semantics@
+
+OS_DSO_EXRULES = @ccenv_os_dso_exrules@
+OS_DSO_LINKAGE = @ccenv_os_dso_linkage@
+
+OS_APP_PREFIX = @ccenv_os_app_prefix@
+OS_APP_SUFFIX = @ccenv_os_app_suffix@
+
+OS_LIB_PREFIX = @ccenv_os_lib_prefix@
+OS_LIB_SUFFIX = @ccenv_os_lib_suffix@
+
+OS_IMPLIB_EXT = @ccenv_os_implib_ext@
+OS_LIBDEF_EXT = @ccenv_os_libdef_ext@
+
+OS_ARCHIVE_EXT = @ccenv_os_archive_ext@
+OS_SONAME = @ccenv_os_soname@
+
+OS_LIB_PREFIXED_SUFFIX = @ccenv_os_lib_prefixed_suffix@
+OS_LIB_SUFFIXED_SUFFIX = @ccenv_os_lib_suffixed_suffix@
+
+# @ccenv_cfgtype@ characteristics
+CC_HOST = @ccenv_cc_host@
+CC_BITS = @ccenv_cc_bits@
+
+CC_BINFMT = @ccenv_cc_binfmt@
+CC_UNDERSCORE = @ccenv_cc_underscore@
+
+CC_ARCH_BFD = @ccenv_cc_arch_bfd@
+CC_ARCH_LLVM = @ccenv_cc_arch_llvm@
+
+# incompatible tool variants
+AS_ASM = @ccenv_as_asm@
+AS_LL = @ccenv_as_ll@
+AS_MC = @ccenv_as_mc@
+
+LD_BFD = @ccenv_ld_bfd@
+LD_GOLD = @ccenv_ld_gold@
+LD_LLD = @ccenv_ld_lld@
+
+OBJDUMP_BFD = @ccenv_objdump_bfd@
+OBJDUMP_LLVM = @ccenv_objdump_llvm@
+
+READELF_BFD = @ccenv_readelf_bfd@
+READELF_LLVM = @ccenv_readelf_llvm@
+
+# @ccenv_cfgtype@ primary tools
+CC = @ccenv_cc@
+CPP = @ccenv_cpp@
+CXX = @ccenv_cxx@
+
+AR = @ccenv_ar@
+NM = @ccenv_nm@
+OBJDUMP = @ccenv_objdump@
+RANLIB = @ccenv_ranlib@
+SIZE = @ccenv_size@
+STRIP = @ccenv_strip@
+STRINGS = @ccenv_strings@
+
+ADDR2LINE = @ccenv_addr2line@
+COV = @ccenv_cov@
+CXXFILT = @ccenv_cxxfilt@
+OBJCOPY = @ccenv_objcopy@
+
+ELFEDIT = @ccenv_elfedit@
+READELF = @ccenv_readelf@
+READOBJ = @ccenv_readobj@
+
+PERK = @ccenv_perk@
+MDSO = @ccenv_mdso@
+DLLTOOL = @ccenv_dlltool@
+
+WINDMC = @ccenv_windmc@
+WINDRC = @ccenv_windrc@
+
+# @ccenv_cfgtype@ secondary tools
+# note: the direct use of $(@ccenv_makevar_prefix@LD) is highly discouraged
+AS = @ccenv_as@
+LD = @ccenv_ld@
+
+# @ccenv_cfgtype@ cflags
+CFLAGS_OS += @ccenv_cflags_os@
+CFLAGS_PIC += @ccenv_cflags_pic@
+
diff --git a/sofort/ccenv/ccenv.sh b/sofort/ccenv/ccenv.sh
new file mode 100644
index 0000000..91d9309
--- /dev/null
+++ b/sofort/ccenv/ccenv.sh
@@ -0,0 +1,1021 @@
+# ccenv.sh: sofort's tool-finding bits,
+# invoked from within the project-agnostic configure script.
+
+# invocation and names of binary tools:
+# agnostic names (ar, nm, objdump, ...);
+# target-prefixed agnostic names (x86_64-nt64-midipix-ar, ...);
+# branded names (llvm-ar, llvm-nm, llvm-objdump, ...);
+# target-prefixed branded names (x86_64-linux-gnu-gcc-ar, ...);
+# target-specifying branded tools (llvm-ar --target=x86_64-linux, ...).
+
+# cross-compilation: default search order:
+# target-prefixed agnostic tools;
+# target-prefixed branded tools, starting with the prefix
+# most commonly associated with the selected compiler (that is,
+# ``gcc'' when using gcc, and ``llvm'' when using clang);
+# target-speficying branded tools, starting once again with the
+# prefix most commonly associated with the selected compiler.
+
+# internal variables of interest:
+# ccenv_cfgtype: the type of host being tested (host/native)
+# ccenv_cfgfile: the configuration file for the host being tested
+# ccenv_cflags: the comprehensive cflags for the host being tested
+# ccenv_cchost: the host being tested, as reported by -dumpmachine
+
+
+ccenv_usage()
+{
+ cat "$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" >> "$ccenv_cfgfile"
+}
+
+
+ccenv_find_tool()
+{
+ if [ -z "$ccenv_prefixes" ]; then
+ for ccenv_tool in $ccenv_candidates; do
+ command -v "$ccenv_tool" > /dev/null && return 0
+ done
+
+ ccenv_tool=false
+
+ return 0
+ fi
+
+ for ccenv_prefix in $ccenv_prefixes; do
+ for ccenv_candidate in $ccenv_candidates; do
+ ccenv_tool="$ccenv_prefix$ccenv_candidate"
+ command -v "$ccenv_tool" > /dev/null && return 0
+ done
+ done
+
+ for ccenv_tool in $ccenv_candidates; do
+ command -v "$ccenv_tool" > /dev/null && return 0
+ 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"
+ ccenv_peep_tools="perk mdso dlltool windmc windres"
+
+ for __tool in $ccenv_core_tools $ccenv_hack_tools $ccenv_peep_tools; do
+ if [ -n "$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="$ccenv_tool"
+ fi
+ done
+
+ # windrc
+ ccenv_windrc="$ccenv_windres"
+}
+
+ccenv_set_tool_variants()
+{
+ # as (asm)
+ ccenv_candidates=as
+ ccenv_find_tool
+
+ if [ "$ccenv_tool" = false ]; then
+ ccenv_as_asm=
+ else
+ $ccenv_tool --help | grep -i '.bc assembler' \
+ || ccenv_as_asm="$ccenv_tool"
+ fi
+
+ # as (ll)
+ ccenv_candidates=llvm-as
+ ccenv_find_tool
+
+ if [ "$ccenv_tool" != false ]; then
+ ccenv_as_ll="$ccenv_tool"
+ fi
+
+ # as (mc)
+ ccenv_candidates=llvm-mc
+ ccenv_find_tool
+
+ if [ "$ccenv_tool" != false ]; then
+ ccenv_as_mc="$ccenv_tool"
+ fi
+
+ # ld (bfd)
+ ccenv_candidates=ld.bfd
+ ccenv_find_tool
+
+ if [ "$ccenv_tool" != false ]; then
+ ccenv_ld_bfd="$ccenv_tool"
+ fi
+
+ # ld (gold)
+ ccenv_candidates=ld.gold
+ ccenv_find_tool
+
+ if [ "$ccenv_tool" != false ]; then
+ ccenv_ld_gold="$ccenv_tool"
+ fi
+
+ # ld (lld)
+ ccenv_candidates=lld
+ ccenv_find_tool
+
+ if [ "$ccenv_tool" != false ]; then
+ ccenv_ld_lld="$ccenv_tool"
+ fi
+
+ # objdump (bfd)
+ ccenv_candidates=objdump
+ ccenv_find_tool
+
+ $ccenv_tool --version | grep -i Binutils \
+ > /dev/null \
+ && ccenv_objdump_bfd="$ccenv_tool"
+
+ # objdump (llvm)
+ ccenv_candidates=llvm-objdump
+ ccenv_find_tool
+
+ $ccenv_tool --version | grep -i LLVM \
+ > /dev/null \
+ && ccenv_objdump_llvm="$ccenv_tool"
+
+ # readelf (bfd)
+ ccenv_candidates=readelf
+ ccenv_find_tool
+
+ $ccenv_tool --version | grep -i Binutils \
+ > /dev/null \
+ && ccenv_readelf_bfd="$ccenv_tool"
+
+ # readelf (llvm)
+ ccenv_candidates=llvm-readelf
+ ccenv_find_tool
+
+ $ccenv_tool --version | grep -i LLVM \
+ > /dev/null \
+ && ccenv_readelf_llvm="$ccenv_tool"
+
+ # as
+ if [ -n "$ccenv_cc" ]; then
+ ccenv_as='$('"$ccenv_makevar_prefix"'CC) -x assembler'
+ elif [ -n "$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="c99 c11 cc gcc clang"
+ fi
+}
+
+
+ccenv_set_cc()
+{
+ 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="$mb_compiler"
+ fi
+
+ ccenv_cc_cmd="$ccenv_cc"
+
+ if [ "$ccenv_cfgtype" = 'native' ]; then
+ return 0
+ fi
+
+ if [ -n "$mb_cchost" ]; then
+ ccenv_host="$mb_cchost"
+ elif [ -n "$mb_host" ]; then
+ ccenv_host="$mb_host"
+ else
+ ccenv_host=
+ fi
+
+ if [ -z "$ccenv_host" ]; then
+ ccenv_host=$($ccenv_cc $ccenv_cflags -dumpmachine 2>/dev/null)
+ ccenv_cchost=$ccenv_host
+ else
+ ccenv_tmp=$(mktemp)
+ ccenv_cmd="$ccenv_cc --target=$ccenv_host -E -xc -"
+
+ if [ -z "$mb_user_cc" ]; then
+ $ccenv_cmd < /dev/null > /dev/null \
+ 2>"$ccenv_tmp" || true
+
+ ccenv_errors=$(cat "$ccenv_tmp")
+
+ if [ -z "$ccenv_errors" ]; then
+ ccenv_tflags="--target=$ccenv_host"
+ ccenv_cc="$ccenv_cc $ccenv_tflags"
+ fi
+ fi
+
+ ccenv_cchost=$($ccenv_cc $ccenv_cflags -dumpmachine 2>/dev/null)
+ fi
+
+ if [ "$ccenv_cchost" != "$ccenv_host" ]; then
+ 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' "$ccenv_errors" >&2
+ else
+ printf 'ccenv:\n' >&2
+ printf 'ccenv: something went wrong, bailing out.\n\n' >&2
+ fi
+
+ return 2
+ fi
+}
+
+ccenv_set_cpp()
+{
+ case "$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="$ccenv_cc -E"
+ return 0
+ esac
+
+ ccenv_find_tool
+
+ if [ "$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_set_cxx()
+{
+ case "$ccenv_cc_cmd" in
+ cc | c99 | c11 )
+ ccenv_cxx_prefix=
+ ccenv_candidates="cxx c++" ;;
+
+ gcc )
+ ccenv_cxx_prefix=
+ ccenv_candidates="g++" ;;
+
+ clang )
+ ccenv_cxx_prefix=
+ ccenv_candidates="clang++" ;;
+
+ *-gcc )
+ ccenv_cpp_prefix=${ccenv_cc_cmd%-gcc*}-
+ ccenv_candidates="${ccenv_cpp_prefix}g++" ;;
+
+ *-clang )
+ ccenv_cpp_prefix=${ccenv_cc_cmd%-clang*}-
+ ccenv_candidates="${ccenv_cpp_prefix}clang++" ;;
+
+ *cc )
+ ccenv_cxx_prefix=${ccenv_cc_cmd%cc*}
+ ccenv_candidates="${ccenv_cpp_prefix}++" ;;
+
+ * )
+ ccenv_cxx="$ccenv_cc -xc++"
+ 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_set_cc_host()
+{
+ ccenv_cc_host="$ccenv_cchost"
+}
+
+ccenv_set_cc_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" \
+ | $ccenv_cc -S -xc - -o - \
+ $ccenv_cflags \
+ > /dev/null 2>/dev/null \
+ && ccenv_internal_size=$ccenv_internal_guess
+ fi
+ done
+
+ ccenv_cc_bits=$ccenv_internal_size
+}
+
+ccenv_set_cc_underscore()
+{
+ ccenv_fn_name='ZmYaXyWbVe_UuTnSdReQrPsOcNoNrLe'
+ ccenv_fn_code='int %s(void){return 0;}'
+
+ printf "$ccenv_fn_code" $ccenv_fn_name \
+ | $ccenv_cc -xc - -S -o - \
+ | grep _$ccenv_fn_name \
+ > /dev/null \
+ && ccenv_cc_underscore='_'
+
+ 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 \
+ || 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 $ccenv_image \
+ || return 1
+
+ ccenv_freestd=yes
+
+ return 0
+}
+
+ccenv_set_cc_binfmt()
+{
+ ccenv_use_perk=
+ ccenv_use_readelf=
+ ccenv_use_readobj=
+ ccenv_use_bfd_objdump=
+ ccenv_use_llvm_objdump=
+
+ ccenv_create_framework_executable \
+ || ccenv_create_freestanding_executable \
+ || return 0
+
+ # PE / perk
+ if [ -n "$ccenv_perk" ]; then
+ $ccenv_perk $ccenv_image 2>/dev/null \
+ && ccenv_cc_binfmt='PE' \
+ && ccenv_use_perk=yes
+ fi
+
+ # ELF / readelf
+ if [ -n "$ccenv_readelf" ] && [ -z "$ccenv_cc_binfmt" ]; then
+ $ccenv_readelf -h $ccenv_image 2>/dev/null \
+ | grep 'Magic:' | sed -e 's/[ ]*//g' \
+ | grep 'Magic:7f454c46' \
+ > /dev/null \
+ && ccenv_cc_binfmt='ELF' \
+ && ccenv_use_readelf=yes
+ fi
+
+ # a marble of astonishing design:
+ # llvm-readelf also parses PE and Mach-O
+
+ if [ -n "$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
+ $ccenv_readany -h $ccenv_image 2>/dev/null \
+ | grep 'Magic:' | sed -e 's/[ ]*//g' \
+ | grep 'Magic:MZ' \
+ > /dev/null \
+ && ccenv_cc_binfmt='PE' \
+ && ccenv_use_readelf=yes
+ fi
+
+ # MACHO-64 / readelf
+ if [ -n "$ccenv_readany" ] && [ -z "$ccenv_cc_binfmt" ]; then
+ $ccenv_readany -h $ccenv_image 2>/dev/null \
+ | grep -i 'Magic:' | sed -e 's/[ ]*//g' \
+ | grep -i '(0xfeedfacf)' \
+ > /dev/null \
+ && ccenv_cc_binfmt='MACHO' \
+ && ccenv_use_readelf=yes
+ fi
+
+ # MACHO-32 / readelf
+ if [ -n "$ccenv_readany" ] && [ -z "$ccenv_cc_binfmt" ]; then
+ $ccenv_readany -h $ccenv_image 2>/dev/null \
+ | grep -i 'Magic:' | sed -e 's/[ ]*//g' \
+ | grep -i '(0xcafebabe)' \
+ > /dev/null \
+ && ccenv_cc_binfmt='MACHO' \
+ && ccenv_use_readelf=yes
+ fi
+
+ # MACHO / readobj
+ if [ -n "$ccenv_readobj" ] && [ -z "$ccenv_cc_binfmt" ]; then
+ $ccenv_readobj $ccenv_image 2>/dev/null \
+ | grep -i 'Format:' | sed 's/ /_/g' \
+ | grep -i '_Mach-O_' \
+ > /dev/null \
+ && ccenv_cc_binfmt='MACHO' \
+ && ccenv_use_readobj=yes
+ fi
+
+ # MACHO / objdump (llvm)
+ if [ -n "$ccenv_objdump" ] && [ -z "$ccenv_cc_binfmt" ]; then
+ $ccenv_objdump -section-headers $ccenv_image \
+ 2>/dev/null \
+ | grep -i 'file format Mach-O' \
+ > /dev/null \
+ && ccenv_cc_binfmt='MACHO' \
+ && ccenv_use_objdump=yes
+ fi
+
+ # MACHO / objdump (bfd)
+ if [ -n "$ccenv_objdump" ] && [ -z "$ccenv_cc_binfmt" ]; then
+ $ccenv_objdump -h $ccenv_image 2>/dev/null \
+ | grep -i 'file format Mach-O' \
+ > /dev/null \
+ && ccenv_cc_binfmt='MACHO' \
+ && ccenv_use_objdump=yes
+ fi
+
+ # PE / objdump (bfd)
+ if [ -n "$ccenv_objdump" ] && [ -z "$ccenv_cc_binfmt" ]; then
+ $ccenv_objdump -h $ccenv_image 2>/dev/null \
+ | grep -i 'file format pei-' \
+ > /dev/null \
+ && ccenv_cc_binfmt='PE' \
+ && ccenv_use_bfd_objdump=yes
+ fi
+}
+
+ccenv_set_os_pe()
+{
+ if [ -n "$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()
+{
+ case "$ccenv_cc_binfmt" in
+ PE )
+ ccenv_set_os_pe ;;
+ MACHO )
+ ccenv_set_os_macho ;;
+ esac
+
+ if [ -n "$ccenv_os" ]; then
+ return 0
+ fi
+
+ case "$ccenv_cchost" in
+ *-*-*-* )
+ ccenv_tip=${ccenv_host%-*}
+ ccenv_os=${ccenv_tip#*-*-}
+ ;;
+
+ *-*-* )
+ ccenv_tip=${ccenv_host%-*}
+ ccenv_os=${ccenv_tip#*-}
+ ;;
+ esac
+
+ if [ -z "$ccenv_os" ]; then
+ ccenv_os='anyos'
+ fi
+}
+
+ccenv_set_os_flags()
+{
+ case "$ccenv_os" in
+ darwin )
+ ccenv_cflags_os='-D_DARWIN_C_SOURCE'
+ ccenv_cflags_pic='-fPIC'
+ ;;
+ midipix )
+ ccenv_cflags_os=
+ ccenv_cflags_pic='-fPIC'
+ ;;
+ cygwin )
+ ccenv_cflags_os=
+ ccenv_cflags_pic=
+ ;;
+ msys | msys* | mingw | mingw* )
+ ccenv_cflags_os='-U__STRICT_ANSI__'
+ ccenv_cflags_pic=
+ ;;
+ * )
+ ccenv_cflags_os=
+ ccenv_cflags_pic='-fPIC'
+ ;;
+ esac
+}
+
+ccenv_set_os_semantics()
+{
+ # binary_format - core_api - ex_api - dependency_resolution
+
+ case "$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 "$ccenv_os_semantics" ]; then
+ return 0
+ fi
+
+ if [ -n "$ccenv_cc_binfmt" ]; then
+ ccenv_os_semantics_pattern='%s-posix-anyos-unknown'
+ ccenv_os_semantics=$(printf \
+ "$ccenv_os_semantics_pattern" \
+ "$ccenv_cc_binfmt" \
+ | tr '[:upper:]' '[:lower:]')
+ else
+ ccenv_os_semantics='unknown-posix-anyos-unknown'
+ fi
+}
+
+ccenv_set_os_dso_exrules()
+{
+ case "$ccenv_os" in
+ midipix )
+ ccenv_os_dso_exrules='pe-mdso'
+ ;;
+ * )
+ if [ "$ccenv_cc_binfmt" = 'PE' ]; then
+ ccenv_os_dso_exrules='pe-dlltool'
+ else
+ ccenv_os_dso_exrules='default'
+ fi
+ esac
+}
+
+ccenv_set_os_dso_linkage()
+{
+ # todo: PIC, PIE, and friends
+ ccenv_os_dso_linkage='default'
+}
+
+ccenv_set_os_dso_patterns_darwin()
+{
+ ccenv_os_app_prefix=
+ ccenv_os_app_suffix=
+
+ ccenv_os_lib_prefix=lib
+ ccenv_os_lib_suffix=.dylib
+
+ ccenv_os_implib_ext=.invalid
+ ccenv_os_libdef_ext=.invalid
+
+ ccenv_os_archive_ext=.a
+ ccenv_os_soname=symlink
+
+ ccenv_os_lib_prefixed_suffix=
+ ccenv_os_lib_suffixed_suffix='$(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_output_defs()
+{
+ ccenv_in="$mb_project_dir/sofort/ccenv/ccenv.in"
+ ccenv_mk="$mb_pwd/ccenv/$ccenv_cfgtype.mk"
+
+ if [ $ccenv_cfgtype = 'native' ]; then
+
+ ccenv_tmp=$(mktemp)
+
+ sed \
+ -e 's/^\s*$/@/g' \
+ -e 's/^/NATIVE_/' \
+ -e 's/NATIVE_@//g' \
+ -e 's/NATIVE_#/#/g' \
+ -e 's/ =/=/g' \
+ -e 's/ +=/+=/g' \
+ "$ccenv_in" > "$ccenv_tmp"
+
+ ccenv_in="$ccenv_tmp"
+ fi
+
+ ccenv_vars=$(cut -d'=' -f1 "$mb_project_dir/sofort/ccenv/ccenv.vars" \
+ | grep -v '^#')
+
+ ccenv_exvars="ccenv_cfgtype ccenv_makevar_prefix"
+
+ ccenv_sed_substs=" \
+ $(for __var in $ccenv_vars $ccenv_exvars; do \
+ printf '%s"$%s"%s' "-e 's/@$__var@/'" \
+ "$__var" "'/g' "; \
+ done)"
+
+ eval sed $ccenv_sed_substs "$ccenv_in" \
+ | sed -e 's/[ \t]*$//g' \
+ > "$ccenv_mk"
+
+ return 0
+}
+
+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=
+
+ 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 [ $ccenv_cfgtype = 'host' ]; then
+ ccenv_tflags=
+ ccenv_cflags=$(make -s -f "$mb_pwd/Makefile.tmp" .display-cflags)
+ ccenv_cc="$mb_user_cc"
+ ccenv_cpp="$mb_user_cpp"
+ ccenv_cxx="$mb_user_cxx"
+ else
+ ccenv_tflags=
+ ccenv_cflags="$mb_native_cflags"
+ ccenv_cc="$mb_native_cc"
+ ccenv_cpp="$mb_native_cpp"
+ ccenv_cxx="$mb_native_cxx"
+ fi
+}
+
+ccenv_set_characteristics()
+{
+ ccenv_set_cc_host
+ ccenv_set_cc_bits
+ ccenv_set_cc_underscore
+ ccenv_set_cc_binfmt
+}
+
+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_exrules
+ ccenv_set_os_dso_linkage
+ ccenv_set_os_dso_patterns
+
+ ccenv_output_defs
+ ccenv_clean_up
+}
+
+ccenv_set_host_variables()
+{
+ ccenv_set_toolchain_variables 'host'
+}
+
+ccenv_set_native_variables()
+{
+ ccenv_set_toolchain_variables 'native'
+}
diff --git a/sofort/ccenv/ccenv.usage b/sofort/ccenv/ccenv.usage
new file mode 100644
index 0000000..44e5f05
--- /dev/null
+++ b/sofort/ccenv/ccenv.usage
@@ -0,0 +1,84 @@
+A few words on sofort's tool-finding logic
+==========================================
+
+# the goals of sofort's tool-finding logic are:
+- follow a clear, transparent, and consistent logic
+- allow users to easily specify per-build preferences
+- allow distros to easily and cleanly use site-wide settings
+
+
+# three-way terminology:
+- native machine: where make(1) will be running.
+- host machine: where the package's program or libraries will execute.
+- target machine: where code generated by the host package will execute.
+
+! NOTE, however, that the host/target distinction is only relevant
+ when building a code-generating utility (e.g. a compiler), and that
+ the two are otherwise rather synonymous. Moreover, in practice it
+ is much more common to see configure scripts being invoked with a
+ --target=<machine> argument specifying the host, than with a
+ --host=<machine> argument.
+
+
+# invocation and names of binary tools:
+- agnostic names (ar, nm, objdump, ...)
+- branded names (llvm-ar, llvm-nm, llvm-objdump, ...)
+- machine-prefixed agnostic names (x86_64-nt64-midipix-ar, ...)
+- machine-prefixed branded names (x86_64-linux-gnu-gcc-ar, ...)
+- machine-specifying branded tools, as in
+ llvm-ar --target=x86_64-linux.
+
+
+# cross-compilation: default search order:
+- machine-prefixed agnostic tools
+- machine-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)
+- (machine-specifying) agnostic tools
+- (machine-speficying) branded tools, starting once again with the
+ prefix most commonly associated with the selected compiler
+
+
+# native builds: default search order:
+- agnostic tools
+- machine-prefixed agnostic tools
+- machine-prefixed branded tools
+- branded tools
+
+
+# using an alternate search order:
+- --toolchain=<prefix> (e.g. --toolchain=llvm) --> search for tools
+ that begin with <prefix> before searching for agnostic tools
+
+
+# restricting which tools may be searched:
+- --zealous --> only search for agnostic tools
+- --zealous=<prefix> --> only search for <prefix>-branded tools
+
+
+# per-tool overrides, by example of the ``ar'' tool:
+- AR=ar --> set AR to $(command -v ar)
+- AR=/path/to/ar --> set AR to the specified absolute path
+
+
+# consistency:
+- in the above case of AR=ar, using $(command -v ar) ensures
+ that the same tool is used throughout the lifetime of the
+ build project.
+
+
+# host generated config file and variable names:
+- ccenv/host.mk
+- AR, NM, OBJDUMP, ...
+
+
+# native generated config file and variable names:
+- ccenv/native.mk
+- NATIVE_AR, NATIVE_NM, NATIVE_OBJDUMP, ...
+
+
+# distro: site-wide preferences
+- --ccenv=/path/to/site-specific/ccenv
+- use the above to create ccenv as a symlink to
+ /path/to/site-specific/ccenv, and to accordingly
+ skip configure's tool-finding step.
diff --git a/sofort/ccenv/ccenv.vars b/sofort/ccenv/ccenv.vars
new file mode 100644
index 0000000..1d68357
--- /dev/null
+++ b/sofort/ccenv/ccenv.vars
@@ -0,0 +1,82 @@
+# system flavor
+ccenv_os=
+ccenv_os_semantics=
+
+ccenv_os_dso_exrules=
+ccenv_os_dso_linkage=
+
+ccenv_os_app_prefix=
+ccenv_os_app_suffix=
+
+ccenv_os_lib_prefix=
+ccenv_os_lib_suffix=
+
+ccenv_os_implib_ext=
+ccenv_os_libdef_ext=
+
+ccenv_os_archive_ext=
+ccenv_os_soname=
+
+ccenv_os_lib_prefixed_suffix=
+ccenv_os_lib_suffixed_suffix=
+
+# characteristics
+ccenv_cc_host=
+ccenv_cc_bits=
+
+ccenv_cc_binfmt=
+ccenv_cc_underscore=
+
+ccenv_cc_arch_bfd=
+ccenv_cc_arch_llvm=
+
+# incompatible tool variants
+ccenv_as_asm=
+ccenv_as_ll=
+ccenv_as_mc=
+
+ccenv_ld_bfd=
+ccenv_ld_gold=
+ccenv_ld_lld=
+
+ccenv_objdump_bfd=
+ccenv_objdump_llvm=
+
+ccenv_readelf_bfd=
+ccenv_readelf_llvm=
+
+# tool variables
+ccenv_cc=
+ccenv_cpp=
+ccenv_cxx=
+
+ccenv_as=
+ccenv_ld=
+
+ccenv_ar=
+ccenv_nm=
+ccenv_objdump=
+ccenv_ranlib=
+ccenv_size=
+ccenv_strip=
+ccenv_strings=
+
+ccenv_addr2line=
+ccenv_cov=
+ccenv_cxxfilt=
+ccenv_objcopy=
+
+ccenv_elfedit=
+ccenv_readelf=
+ccenv_readobj=
+
+ccenv_perk=
+ccenv_mdso=
+ccenv_dlltool=
+
+ccenv_windmc=
+ccenv_windrc=
+
+# cflags
+ccenv_cflags_os=
+ccenv_cflags_pic=
--
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