Switch IDF projects to a standalone GDB packages

Note: This change requires PlatformIO Core >=6.1.11a2

builder/main.py

@@ -230,7 +230,16 @@ env.Replace(
     AS="%s-elf-as" % toolchain_arch,
     CC="%s-elf-gcc" % toolchain_arch,
     CXX="%s-elf-g++" % toolchain_arch,
-    GDB="%s-elf-gdb" % toolchain_arch,
+    GDB=join(
+        platform.get_package_dir(
+            "tool-riscv32-esp-elf-gdb"
+            if mcu in ("esp32c3", "esp32c6")
+            else "tool-xtensa-esp-elf-gdb"
+        )
+        or "",
+        "bin",
+        "%s-elf-gdb" % toolchain_arch,
+    ) if env.get("PIOFRAMEWORK") == ["espidf"] else "%s-elf-gdb" % toolchain_arch,
     OBJCOPY=join(
         platform.get_package_dir("tool-esptoolpy") or "", "esptool.py"),
     RANLIB="%s-elf-ranlib" % toolchain_arch,

platform.json

@@ -63,6 +63,18 @@
       "owner": "platformio",
       "version": "~1.23500.0"
     },
+    "tool-xtensa-esp-elf-gdb": {
+      "type": "debugger",
+      "optional": true,
+      "owner": "espressif",
+      "version": "~12.1.0+20221002"
+    },
+    "tool-riscv32-esp-elf-gdb": {
+      "type": "debugger",
+      "optional": true,
+      "owner": "espressif",
+      "version": "~12.1.0+20221002"
+    },
     "framework-arduinoespressif32": {
       "type": "framework",
       "optional": true,
@@ -79,7 +91,7 @@
       "type": "framework",
       "optional": true,
       "owner": "platformio",
-      "version": "~3.50101.0",
+      "version": "~3.50100.0",
       "optionalVersions": ["~3.40405.0"]
     },
     "tool-esptoolpy": {

platform.py

@@ -56,7 +56,7 @@ class Espressif32Platform(PlatformBase):
             "board_build.core", board_config.get("build.core", "arduino")
         ).lower()
 
-        if len(frameworks) == 1 and "arduino" in frameworks and build_core == "esp32":
+        if frameworks == ["arduino"] and build_core == "esp32":
             # In case the upstream Arduino framework is specified in the configuration
             # file then we need to dynamically extract toolchain versions from the
             # Arduino index file. This feature can be disabled via a special option:
@@ -93,6 +93,17 @@ class Espressif32Platform(PlatformBase):
                         sys.exit(1)
 
         if "espidf" in frameworks:
+            if frameworks == ["espidf"]:
+                # Starting from v12, Espressif's toolchains are shipped without
+                # bundled GDB. Instead, it's distributed as separate packages for Xtensa
+                # and RISC-V targets. Currently only IDF depends on the latest toolchain
+                for gdb_package in ("tool-xtensa-esp-elf-gdb", "tool-riscv32-esp-elf-gdb"):
+                    self.packages[gdb_package]["optional"] = False
+                    if IS_WINDOWS:
+                        # Note: On Windows GDB v12 is not able to
+                        # launch a GDB server in pipe mode while v11 works fine
+                        self.packages[gdb_package]["version"] = "~11.2.0"
+
             # Common packages for IDF and mixed Arduino+IDF projects
             for p in self.packages:
                 if p in ("tool-cmake", "tool-ninja", "toolchain-esp32ulp"):
@@ -113,6 +124,11 @@ class Espressif32Platform(PlatformBase):
                 ):
                     self.packages["toolchain-%s" % target]["version"] = "12.2.0+20230208"
 
+        if "arduino" in frameworks:
+            # Disable standalone GDB packages for Arduino and Arduino/IDF projects
+            for gdb_package in ("tool-xtensa-esp-elf-gdb", "tool-riscv32-esp-elf-gdb"):
+                self.packages.pop(gdb_package, None)
+
         for available_mcu in ("esp32", "esp32s2", "esp32s3"):
             if available_mcu == mcu:
                 self.packages["toolchain-xtensa-%s" % mcu]["optional"] = False