ETH plugin SDK : Move some parts from plugin boilerplate to Eth plugin SDK to ease the plugins development, remove throw and fix the CI issues

src_plugins_sdk/plugin_main.c

@@ -0,0 +1,68 @@
+/*****************************************************************************
+ *   Ledger Plugins SDK.
+ *   (c) 2023 Ledger SAS.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *****************************************************************************/
+
+// Calls the ethereum app.
+void call_app_ethereum() {
+    unsigned int libcall_params[5];
+    libcall_params[0] = (unsigned int) "Ethereum";
+    libcall_params[1] = 0x100;
+    libcall_params[2] = RUN_APPLICATION;
+    libcall_params[3] = (unsigned int) NULL;
+#ifdef HAVE_NBGL
+    caller_app_t capp;
+    const char name[] = APPNAME;
+    nbgl_icon_details_t icon_details;
+    uint8_t bitmap[sizeof(ICONBITMAP)];
+
+    memcpy(&icon_details, &ICONGLYPH, sizeof(ICONGLYPH));
+    memcpy(&bitmap, &ICONBITMAP, sizeof(bitmap));
+    icon_details.bitmap = (const uint8_t *) bitmap;
+    capp.name = (const char *) name;
+    capp.icon = &icon_details;
+    libcall_params[4] = (unsigned int) &capp;
+#else
+    libcall_params[4] = (unsigned int) NULL;
+#endif
+    os_lib_call((unsigned int *) &libcall_params);
+}
+
+// Low-level main for plugins.
+__attribute__((section(".boot"))) int main(int arg0) {
+    // Exit critical section
+    __asm volatile("cpsie i");
+
+    os_boot();
+
+    check_api_level(CX_COMPAT_APILEVEL);
+
+    // Check if plugin is called from the dashboard.
+    if (!arg0) {
+        // Called from dashboard, launch Ethereum app
+        call_app_ethereum();
+        return 0;
+    } else {
+        // Not called from dashboard: called from the ethereum app!
+        // launch plugin main
+        plugin_main(arg0);
+    }
+
+    // Call `os_lib_end`, go back to the ethereum app.
+    os_lib_end();
+
+    // Will not get reached.
+    return 0;
+}