picolibc: Convert to companion library

This allows configurations to include picolibc without excluding
another C library.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 0 insertions, 111 deletions

diff --git a/scripts/build/libc/picolibc.sh b/scripts/build/libc/picolibc.sh
deleted file mode 100644
index 152125c..0000000
--- a/scripts/build/libc/picolibc.sh
+++ /dev/null
@@ -1,111 +0,0 @@
-# This file adds functions to build the Picolibc library
-# Copyright © 2020 Keith Packard
-# Licensed under the GPL v2 or later. See COPYING in the root of this package
-#
-# Edited by Keith Packard <keithp@keithp.com>
-#
-
-picolibc_start_files()
-{
-    CT_DoStep INFO "Installing C library headers & start files"
-    CT_DoExecLog ALL cp -a "${CT_SRC_DIR}/picolibc/newlib/libc/include/." \
-    "${CT_HEADERS_DIR}"
-    CT_EndStep
-}
-
-picolibc_main()
-{
-    local -a picolibc_opts
-    local cflags_for_target
-
-    CT_DoStep INFO "Installing C library"
-
-    CT_mkdir_pushd "${CT_BUILD_DIR}/build-libc"
-
-    CT_DoLog EXTRA "Configuring Picolibc library"
-
-    # Multilib is the default, so if it is not enabled, disable it.
-    if [ "${CT_MULTILIB}" != "y" ]; then
-        picolibc_opts+=("-Dmultilib=false")
-    fi
-
-    yn_args="IO_C99FMT:io-c99-formats
-IO_LL:io-long-long
-REGISTER_FINI:newlib-register-fini
-NANO_MALLOC:newlib-nano-malloc
-ATEXIT_DYNAMIC_ALLOC:newlib-atexit-dynamic-alloc
-GLOBAL_ATEXIT:newlib-global-atexit
-LITE_EXIT:lite-exit
-MULTITHREAD:newlib-multithread
-RETARGETABLE_LOCKING:newlib-retargetable-locking
-    "
-
-    for ynarg in $yn_args; do
-        var="CT_LIBC_PICOLIBC_${ynarg%:*}"
-        eval var=\$${var}
-        argument=${ynarg#*:}
-
-
-        if [ "${var}" = "y" ]; then
-            picolibc_opts+=( "-D$argument=true" )
-        else
-            picolibc_opts+=( "-D$argument=false" )
-        fi
-    done
-
-    [ "${CT_USE_SYSROOT}" = "y" ] && \
-	picolibc_opts+=( "-Dsysroot-install=true" )
-
-    [ "${CT_LIBC_PICOLIBC_EXTRA_SECTIONS}" = "y" ] && \
-        CT_LIBC_PICOLIBC_TARGET_CFLAGS="${CT_LIBC_PICOLIBC_TARGET_CFLAGS} -ffunction-sections -fdata-sections"
-
-    [ "${CT_LIBC_PICOLIBC_LTO}" = "y" ] && \
-        CT_LIBC_PICOLIBC_TARGET_CFLAGS="${CT_LIBC_PICOLIBC_TARGET_CFLAGS} -flto"
-
-    cflags_for_target="${CT_ALL_TARGET_CFLAGS} ${CT_LIBC_PICOLIBC_TARGET_CFLAGS}"
-
-    # Note: picolibc handles the build/host/target a little bit differently
-    # than one would expect:
-    #   build  : not used
-    #   host   : the machine building picolibc
-    #   target : the machine picolibc runs on
-	meson_cflags=""
-	for cflag in ${cflags_for_target}; do
-		meson_cflags="${meson_cflags} '${cflag}',"
-	done
-	cat << EOF > picolibc-cross.txt
-[binaries]
-c = '${CT_TARGET}-gcc'
-ar = '${CT_TARGET}-ar'
-as = '${CT_TARGET}-as'
-strip = '${CT_TARGET}-strip'
-
-[host_machine]
-system = '${CT_TARGET_VENDOR}'
-cpu_family = '${CT_TARGET_ARCH}'
-cpu = '${CT_TARGET_ARCH}'
-endian = '${CT_ARCH_ENDIAN}'
-
-[properties]
-c_args = [ ${meson_cflags} '-nostdlib', '-fno-common', '-ftls-model=local-exec' ]
-needs_exe_wrapper = true
-skip_sanity_check = true
-EOF
-    CT_DoExecLog CFG                                               \
-    meson                                                          \
-        --cross-file picolibc-cross.txt                            \
-        --prefix=${CT_SYSROOT_DIR}                                 \
-	-Dspecsdir=${CT_SYSROOT_DIR}/lib                           \
-        "${CT_SRC_DIR}/picolibc"                                   \
-        "${picolibc_opts[@]}"                                      \
-        "${CT_LIBC_PICOLIBC_EXTRA_CONFIG_ARRAY[@]}"
-
-    CT_DoLog EXTRA "Building C library"
-    CT_DoExecLog ALL ninja
-
-    CT_DoLog EXTRA "Installing C library"
-    CT_DoExecLog ALL ninja install
-
-    CT_Popd
-    CT_EndStep
-}