diff options
author | Anup Patel <apatel@ventanamicro.com> | 2022-05-13 06:56:00 +0300 |
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committer | Anup Patel <anup@brainfault.org> | 2022-05-13 06:56:00 +0300 |
commit | 7fb474b9dde5d56e0d4d6a0c1627337694cdc2f2 (patch) | |
tree | f9f70da61cd5242633ec8dd1587bade2f088abd1 /scripts/carray.sh | |
parent | f726f2dc0186964feb17296471233086bcc3d1b2 (diff) | |
download | opensbi-7fb474b9dde5d56e0d4d6a0c1627337694cdc2f2.tar.xz |
Makefile: Add support for generating C array at compile time
Generating C array at compile time based on details provided by
objects.mk is a very useful feature which will help us compile
only a subset of drivers or modules.
We add a bash script (carray.sh) which takes array details and
object/variable list from command-line to generate a C source
containing array of object/variable pointers. We also extend
top-level makefile to use carray.sh whenever specified through
objects.mk.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Diffstat (limited to 'scripts/carray.sh')
-rwxr-xr-x | scripts/carray.sh | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/scripts/carray.sh b/scripts/carray.sh new file mode 100755 index 0000000..0c52bd6 --- /dev/null +++ b/scripts/carray.sh @@ -0,0 +1,77 @@ +#!/bin/bash + +function usage() +{ + echo "Usage:" + echo " $0 [options]" + echo "Options:" + echo " -h Display help or usage" + echo " -i <input_config> Input config file" + echo " -l <variable_list> List of variables in the array (Optional)" + exit 1; +} + +# Command line options +CONFIG_FILE="" +VAR_LIST="" + +while getopts "hi:l:" o; do + case "${o}" in + h) + usage + ;; + i) + CONFIG_FILE=${OPTARG} + ;; + l) + VAR_LIST=${OPTARG} + ;; + *) + usage + ;; + esac +done +shift $((OPTIND-1)) + +if [ -z "${CONFIG_FILE}" ]; then + echo "Must specify input config file" + usage +fi + +if [ ! -f "${CONFIG_FILE}" ]; then + echo "The input config file should be a present" + usage +fi + +TYPE_HEADER=`cat ${CONFIG_FILE} | awk '{ if ($1 == "HEADER:") { printf $2; exit 0; } }'` +if [ -z "${TYPE_HEADER}" ]; then + echo "Must specify HEADER: in input config file" + usage +fi + +TYPE_NAME=`cat ${CONFIG_FILE} | awk '{ if ($1 == "TYPE:") { printf $2; for (i=3; i<=NF; i++) printf " %s", $i; exit 0; } }'` +if [ -z "${TYPE_NAME}" ]; then + echo "Must specify TYPE: in input config file" + usage +fi + +ARRAY_NAME=`cat ${CONFIG_FILE} | awk '{ if ($1 == "NAME:") { printf $2; exit 0; } }'` +if [ -z "${ARRAY_NAME}" ]; then + echo "Must specify NAME: in input config file" + usage +fi + +printf "#include <%s>\n\n" "${TYPE_HEADER}" + +for VAR in ${VAR_LIST}; do + printf "extern %s %s;\n" "${TYPE_NAME}" "${VAR}" +done +printf "\n" + +printf "%s *%s[] = {\n" "${TYPE_NAME}" "${ARRAY_NAME}" +for VAR in ${VAR_LIST}; do + printf "\t&%s,\n" "${VAR}" +done +printf "};\n\n" + +printf "unsigned long %s_size = sizeof(%s) / sizeof(%s *);\n" "${ARRAY_NAME}" "${ARRAY_NAME}" "${TYPE_NAME}" |