[PATCH v2 2/2] devtools: list symbols by version

[David Marchand]

Make it easier to list experimental symbols added in a certain version.

Example:
$ ./buildtools/map-list-symbol.sh -V 18.11 lib/eal/version.map
lib/eal/version.map EXPERIMENTAL rte_dev_event_callback_process
lib/eal/version.map EXPERIMENTAL rte_dev_hotplug_handle_disable
lib/eal/version.map EXPERIMENTAL rte_dev_hotplug_handle_enable

Signed-off-by: David Marchand <david.march...@redhat.com>
Acked-by: Stephen Hemminger <step...@networkplumber.org>
---
 buildtools/map-list-symbol.sh | 39 ++++++++++++++++++++++-------------
 1 file changed, 25 insertions(+), 14 deletions(-)

diff --git a/buildtools/map-list-symbol.sh b/buildtools/map-list-symbol.sh
index 3bf9bd66f8..a834399816 100755
--- a/buildtools/map-list-symbol.sh
+++ b/buildtools/map-list-symbol.sh
@@ -6,7 +6,7 @@ section=all
 symbol=all
 quiet=
 
-while getopts 'S:s:q' name; do
+while getopts 'S:s:qV:' name; do
        case $name in
        S)
                [ $section = 'all' ] || {
@@ -25,8 +25,11 @@ while getopts 'S:s:q' name; do
        q)
                quiet='y'
        ;;
+       V)
+               version=$OPTARG
+       ;;
        ?)
-               echo 'usage: $0 [-S section] [-s symbol] [-q]'
+               echo 'usage: $0 [-S section] [-s symbol] [-V version] [-q]'
                exit 1
        ;;
        esac
@@ -38,7 +41,8 @@ for file in $@; do
        cat "$file" |awk '
        BEGIN {
                current_section = "";
-               if ("'$section'" == "all" && "'$symbol'" == "all") {
+               current_version = "";
+               if ("'$section'" == "all" && "'$symbol'" == "all" && 
"'$version'" == "") {
                        ret = 0;
                } else {
                        ret = 1;
@@ -49,18 +53,25 @@ for file in $@; do
                        current_section = $1;
                }
        }
-       /.*}/ { current_section = ""; }
+       /.*}/ { current_section = ""; current_version = ""; }
+       /^\t# added in / {
+               current_version=$4;
+       }
        /^[^}].*[^:*];/ {
-               if (current_section != "") {
-                       gsub(";","");
-                       if ("'$symbol'" == "all" || $1 == "'$symbol'") {
-                               ret = 0;
-                               if ("'$quiet'" == "") {
-                                       print "'$file' "current_section" "$1;
-                               }
-                               if ("'$symbol'" != "all") {
-                                       exit 0;
-                               }
+               if (current_section == "") {
+                       next;
+               }
+               if ("'$version'" != "" && "'$version'" != current_version) {
+                       next;
+               }
+               gsub(";","");
+               if ("'$symbol'" == "all" || $1 == "'$symbol'") {
+                       ret = 0;
+                       if ("'$quiet'" == "") {
+                               print "'$file' "current_section" "$1;
+                       }
+                       if ("'$symbol'" != "all") {
+                               exit 0;
                        }
                }
        }
-- 
2.41.0