picolibc: Add configuration to select picolibc as the system libc

This moves the picolibc configuration values under C-library -> picolibc
so that they will be more easily discovered.

Signed-off-by: Joakim Nohlgård <joakim@nohlgard.se>

1 files changed, 29 insertions, 0 deletions

diff --git a/scripts/build/libc/picolibc.sh b/scripts/build/libc/picolibc.sh
new file mode 100644
index 00000000..7e71c29b
--- /dev/null
+++ b/scripts/build/libc/picolibc.sh
@@ -0,0 +1,29 @@
+# This file adds functions to use the Picolibc library as the system libc
+# Copyright © 2022 Joakim Nohlgård
+# Licensed under the GPL v2 or later. See COPYING in the root of this package
+
+picolibc_get()
+{
+    CT_Fetch PICOLIBC
+}
+
+picolibc_extract()
+{
+    CT_ExtractPatch PICOLIBC
+}
+
+picolibc_headers()
+{
+    CT_DoStep INFO "Installing C library headers"
+    CT_DoExecLog ALL cp -a "${CT_SRC_DIR}/picolibc/newlib/libc/include/." "${CT_HEADERS_DIR}"
+    CT_EndStep
+}
+
+picolibc_main()
+{
+    CT_DoStep INFO "Installing C library"
+    CT_mkdir_pushd "${CT_BUILD_DIR}/build-libc"
+    do_picolibc_common_install
+    CT_Popd
+    CT_EndStep
+}