git: 5ba2a74e3a20 - main - nanobsd: Add a nano_makefs function

The branch main has been updated by jlduran:

URL: https://cgit.FreeBSD.org/src/commit/?id=5ba2a74e3a208ec5641832ffcb9674c0e4b06950

commit 5ba2a74e3a208ec5641832ffcb9674c0e4b06950
Author:     Jose Luis Duran <jlduran@FreeBSD.org>
AuthorDate: 2026-01-17 18:08:52 +0000
Commit:     Jose Luis Duran <jlduran@FreeBSD.org>
CommitDate: 2026-01-17 18:08:52 +0000

    nanobsd: Add a nano_makefs function
    
    Add a NANO_MAKEFS global variable with options equivalent to NANO_NEWFS
    to be used with a nano_makefs function for creating images.
    
    Also add a function that adjusts the code size calculation, so makefs -s
    won't error about the minimum rounded size.  Ideally this shim should be
    removed, therefore the suspicious _xxx prefix.
    
    Initially not wired.
    
    Reviewed by:    imp
    MFC after:      1 week
    Differential Revision:  https://reviews.freebsd.org/D48789
---
 tools/tools/nanobsd/defaults.sh | 14 ++++++++++++++
 tools/tools/nanobsd/legacy.sh   | 11 +++++++++++
 2 files changed, 25 insertions(+)

diff --git a/tools/tools/nanobsd/defaults.sh b/tools/tools/nanobsd/defaults.sh
index 13e7797df2f5..9827095b334c 100755
--- a/tools/tools/nanobsd/defaults.sh
+++ b/tools/tools/nanobsd/defaults.sh
@@ -107,6 +107,7 @@ NANO_LATE_CUSTOMIZE=""
 
 # Newfs parameters to use
 NANO_NEWFS="-b 4096 -f 512 -i 8192 -U"
+NANO_MAKEFS="-o bsize=4096,density=8192,fsize=512,softupdates=1,version=2"
 
 # The drive name of the media at runtime
 NANO_DRIVE=ada0
@@ -688,6 +689,18 @@ newfs_part() {
 	mount -o async ${dev} ${mnt}
 }
 
+nano_makefs() {
+	local dir image metalog options size
+	options=$1
+	metalog=$2
+	size=$3
+	image=$4
+	dir=$5
+
+	makefs ${options} -F "${metalog}" -N "${NANO_WORLDDIR}/etc" \
+	    -s "${size}b" -T "${NANO_TIMESTAMP}" -t ffs "${image}" "${dir}"
+}
+
 # Convenient spot to work around any umount issues that your build environment
 # hits by overriding this method.
 nano_umount() {
@@ -1002,6 +1015,7 @@ set_defaults_and_export() {
 	export_var NANO_IMGNAME
 	export_var NANO_IMG1NAME
 	export_var NANO_MAKE
+	export_var NANO_MAKEFS
 	export_var NANO_MAKE_CONF_BUILD
 	export_var NANO_MAKE_CONF_INSTALL
 	export_var NANO_MEDIASIZE
diff --git a/tools/tools/nanobsd/legacy.sh b/tools/tools/nanobsd/legacy.sh
index 5ba2d81c6017..ff951f4b762b 100644
--- a/tools/tools/nanobsd/legacy.sh
+++ b/tools/tools/nanobsd/legacy.sh
@@ -92,6 +92,17 @@ calculate_partitioning() {
 	' > ${NANO_LOG}/_.partitioning
 }
 
+_xxx_adjust_code_size()
+{
+	# XXX adjust the CODE_SIZE value by rounding it up to
+	# a bsize of 32768 (DFL_BLKSIZE).
+	# Otherwise makefs -s will fail because of the guard
+	# introduced in 5ad283b3c60d.
+	codesize=$1
+	bsize=32768
+	echo $(( ((codesize + (bsize - 1)) / bsize) * bsize ))
+}
+
 create_code_slice() {
 	pprint 2 "build code slice"
 	pprint 3 "log: ${NANO_OBJ}/_.cs"