From 87d246e64e5bbdba8a3dd4ae7a07caf243dc860e Mon Sep 17 00:00:00 2001
From: JunsuChoi <jsuya.choi@samsung.com>
Date: Fri, 10 Jan 2025 11:09:20 +0900
Subject: [PATCH 1/2] Add symgen_helper script

Find the so file that uses the header file declared in entrypoint.h.

./scripts/symgen_helper.sh <version>
---
 scripts/README.md        |  8 +++-
 scripts/symgen_helper.sh | 87 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 94 insertions(+), 1 deletion(-)
 create mode 100755 scripts/symgen_helper.sh

diff --git a/scripts/README.md b/scripts/README.md
index 8339186..d27f999 100644
--- a/scripts/README.md
+++ b/scripts/README.md
@@ -23,7 +23,13 @@
    scripts/ffigen_helper.sh <version>
    ```
 
-4. Update callbacks data.
+4. Run `symgen_helper.sh` to find out what to add to `symgen.yaml`.
+
+   ```sh
+   scripts/symgen_helper.sh <version>
+   ```
+
+5. Update callbacks data.
 
    * Run `./generate_callbacks.sh verify` to check type substitution.
      Build errors will have to be addressed by editing `gen_callbacks.py`.
diff --git a/scripts/symgen_helper.sh b/scripts/symgen_helper.sh
new file mode 100755
index 0000000..f249a28
--- /dev/null
+++ b/scripts/symgen_helper.sh
@@ -0,0 +1,87 @@
+#!/bin/bash
+SCRIPT_DIR=$(dirname $(readlink -f $0))
+ROOT_DIR=$(readlink -f $SCRIPT_DIR/..)
+
+version=$1
+if [ -z "$version" ]; then
+  echo "$(basename $0) <version>"
+  exit 1
+fi
+
+entrypoints=$ROOT_DIR/configs/$version/entrypoints.h
+rootstraps=$ROOT_DIR/rootstraps/$version
+
+show_loading() {
+    while :; do
+        for s in '|' '/' '-' '\' '|'; do
+            printf "\rCollecting symbol information...  $s"
+            sleep 0.2
+        done
+    done
+}
+
+show_loading &
+LOADING_PID=$!
+
+declare -A symbols
+
+while IFS= read -r so_file; do
+    if file "$so_file" | grep -q 'ELF'; then
+        while IFS= read -r symbol; do
+            if [[ -n "$symbol" ]]; then
+                symbols["$symbol"]+="$so_file "
+            fi
+        done < <(nm -gD "$so_file" | awk '{print $3}')
+    else
+        echo "Warning: $so_file is not a valid ELF file."
+    fi
+done < <(find "$rootstraps" -type f -name "*.so")
+
+kill $LOADING_PID
+wait $LOADING_PID 2>/dev/null
+
+echo -e "\n\n"
+
+declare -a unique_so_file_list
+
+add_symbol_file() {
+    local value=$1
+    local exists=0
+
+    for item in "${unique_so_file_list[@]}"; do
+        if [[ "$item" == "$value" ]]; then
+            exists=1
+            break
+        fi
+    done
+
+    if [[ $exists -eq 0 ]]; then
+        unique_so_file_list+=("$value")
+    fi
+}
+
+file_from_entrypoints=$(grep -oP '#include\s*<\K[^>]*' "$entrypoints")
+
+for header in $file_from_entrypoints; do
+    header_file=$(find "$rootstraps" -type f -name "$(basename $header)")
+    if [ ! -f "$header_file" ]; then
+        continue
+    fi
+
+    functions=$(grep -oP '^\w+\s+\w+\s*\([^)]*\)\s*;' "$header_file" | awk '{print $2}' | sed 's/(.*//')
+
+    for symbol in $functions; do
+        if [[ -n "${symbols[$symbol]}" ]]; then
+            found_symbol_file=$(basename ${symbols[$symbol]})
+            echo "$(basename $header_file) / $found_symbol_file"
+            add_symbol_file $found_symbol_file
+            break;
+        fi
+    done
+done
+
+echo "------------------------------------------"
+
+for x in "${unique_so_file_list[@]}"; do
+    echo "- $x"
+done

From ea26eb8d5ba96a549253195cb1c77e58ef897733 Mon Sep 17 00:00:00 2001
From: JunsuChoi <jsuya.choi@samsung.com>
Date: Fri, 10 Jan 2025 17:41:53 +0900
Subject: [PATCH 2/2] Fix readme

---
 scripts/README.md | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/scripts/README.md b/scripts/README.md
index d27f999..ffb9141 100644
--- a/scripts/README.md
+++ b/scripts/README.md
@@ -15,7 +15,7 @@
 
 1. Create a copy of any existing config in the `configs` directory with the new version number as the directory name.
 
-2. Manually update `entrypoints.h` and `symgen.yaml` by referring to the official [API docs](https://docs.tizen.org/application/native/api/iot-headed/latest) and the rootstrap.
+2. Manually update `entrypoints.h` and `symgen.yaml` by referring to the official [API docs](https://docs.tizen.org/application/native/api/iot-headed/latest) and the rootstrap. (Run `symgen_helper.sh` to find out what to add to `symgen.yaml`. (`scripts/symgen_helper.sh <version>`))
 
 3. Run `ffigen_helper.sh` to generate the contents of the `ffigen.yaml` file.
 
@@ -23,13 +23,7 @@
    scripts/ffigen_helper.sh <version>
    ```
 
-4. Run `symgen_helper.sh` to find out what to add to `symgen.yaml`.
-
-   ```sh
-   scripts/symgen_helper.sh <version>
-   ```
-
-5. Update callbacks data.
+4. Update callbacks data.
 
    * Run `./generate_callbacks.sh verify` to check type substitution.
      Build errors will have to be addressed by editing `gen_callbacks.py`.