1 files changed, 58 insertions, 4 deletions

diff --git a/build-aux/stack.c.gen b/build-aux/stack.c.gen
index 0a77c1a..2b7feef 100755
--- a/build-aux/stack.c.gen
+++ b/build-aux/stack.c.gen
@@ -412,6 +412,12 @@ re_call_other = re.compile(r"(?P<func>[^(]+)\(.*")
 
 class Plugin(typing.Protocol):
     def is_intrhandler(self, name: QName) -> bool: ...
+
+    # init_array returns a list of functions that are placed in the
+    # `.init_array.*` section; AKA functions marked with
+    # `__attribute__((constructor))`.
+    def init_array(self) -> typing.Collection[QName]: ...
+
     def extra_nodes(self) -> typing.Collection[Node]: ...
     def indirect_callees(
         self, loc: str, line: str
@@ -465,6 +471,9 @@ class CmdPlugin:
     def is_intrhandler(self, name: QName) -> bool:
         return False
 
+    def init_array(self) -> typing.Collection[QName]:
+        return []
+
     def extra_nodes(self) -> typing.Collection[Node]:
         return []
 
@@ -532,6 +541,9 @@ class LibObjPlugin:
     def is_intrhandler(self, name: QName) -> bool:
         return False
 
+    def init_array(self) -> typing.Collection[QName]:
+        return []
+
     def extra_nodes(self) -> typing.Collection[Node]:
         return []
 
@@ -569,6 +581,9 @@ class LibHWPlugin:
             "dmairq_handler",
         ]
 
+    def init_array(self) -> typing.Collection[QName]:
+        return []
+
     def extra_nodes(self) -> typing.Collection[Node]:
         return []
 
@@ -605,6 +620,9 @@ class LibCRPlugin:
     def is_intrhandler(self, name: QName) -> bool:
         return str(name.base()) in ("_cr_gdb_intrhandler",)
 
+    def init_array(self) -> typing.Collection[QName]:
+        return []
+
     def extra_nodes(self) -> typing.Collection[Node]:
         return []
 
@@ -621,6 +639,9 @@ class LibCRIPCPlugin:
     def is_intrhandler(self, name: QName) -> bool:
         return False
 
+    def init_array(self) -> typing.Collection[QName]:
+        return []
+
     def extra_nodes(self) -> typing.Collection[Node]:
         return []
 
@@ -723,6 +744,9 @@ class Lib9PPlugin:
     def is_intrhandler(self, name: QName) -> bool:
         return False
 
+    def init_array(self) -> typing.Collection[QName]:
+        return []
+
     def extra_nodes(self) -> typing.Collection[Node]:
         return []
 
@@ -770,6 +794,9 @@ class LibMiscPlugin:
     def is_intrhandler(self, name: QName) -> bool:
         return False
 
+    def init_array(self) -> typing.Collection[QName]:
+        return []
+
     def extra_nodes(self) -> typing.Collection[Node]:
         return []
 
@@ -809,6 +836,9 @@ class PicoFmtPlugin:
     def is_intrhandler(self, name: QName) -> bool:
         return False
 
+    def init_array(self) -> typing.Collection[QName]:
+        return []
+
     def extra_nodes(self) -> typing.Collection[Node]:
         return []
 
@@ -847,15 +877,18 @@ class PicoFmtPlugin:
 
 
 class PicoSDKPlugin:
-    app_init_array: typing.Collection[QName]
+    get_init_array: typing.Callable[[], typing.Collection[QName]]
+    app_init_array: typing.Collection[QName] | None
     app_preinit_array: typing.Collection[QName]
 
     def __init__(
         self,
         *,
-        app_init_array: typing.Collection[QName],
+        get_init_array: typing.Callable[[], typing.Collection[QName]],
     ) -> None:
-        self.app_init_array = app_init_array
+        # grep for '__attribute__((constructor))'.
+        self.get_init_array = get_init_array
+        self.app_init_array = None
 
         # git grep '^PICO_RUNTIME_INIT_FUNC\S*('
         self.app_preinit_array = [
@@ -896,6 +929,9 @@ class PicoSDKPlugin:
             *[f"isr_irq{n}" for n in range(32)],
         ]
 
+    def init_array(self) -> typing.Collection[QName]:
+        return []
+
     def indirect_callees(
         self, loc: str, line: str
     ) -> tuple[typing.Collection[QName], bool] | None:
@@ -936,6 +972,8 @@ class PicoSDKPlugin:
                         return [QName("stdio_uart_in_chars")], False
         if "/newlib_interface.c:" in loc:
             if line == "*p)();":
+                if self.app_init_array is None:
+                    self.app_init_array = self.get_init_array()
                 return self.app_init_array, False
         if "/pico_runtime/runtime.c:" in loc:
             return self.app_preinit_array, False
@@ -1140,6 +1178,9 @@ class TinyUSBDevicePlugin:
     def is_intrhandler(self, name: QName) -> bool:
         return False
 
+    def init_array(self) -> typing.Collection[QName]:
+        return []
+
     def extra_nodes(self) -> typing.Collection[Node]:
         return []
 
@@ -1173,6 +1214,9 @@ class NewlibPlugin:
     def is_intrhandler(self, name: QName) -> bool:
         return False
 
+    def init_array(self) -> typing.Collection[QName]:
+        return [QName("register_fini")]
+
     def extra_nodes(self) -> typing.Collection[Node]:
         # This is accurate to
         # /usr/arm-none-eabi/lib/thumb/v6-m/nofp/libg.a as of
@@ -1221,6 +1265,9 @@ class LibGCCPlugin:
     def is_intrhandler(self, name: QName) -> bool:
         return False
 
+    def init_array(self) -> typing.Collection[QName]:
+        return []
+
     def extra_nodes(self) -> typing.Collection[Node]:
         # This is accurate to
         # /usr/lib/gcc/arm-none-eabi/14.2.0/thumb/v6-m/nofp/libgcc.a
@@ -1280,10 +1327,17 @@ def main(
     # pico-sdk #######################################################
 
     if arg_pico_platform == "rp2040":
+
+        def get_init_array() -> typing.Collection[QName]:
+            ret: list[QName] = []
+            for plugin in plugins:
+                ret.extend(plugin.init_array())
+            return ret
+
         plugins += [
             PicoFmtPlugin(),
             PicoSDKPlugin(
-                app_init_array=[QName("register_fini")],
+                get_init_array=get_init_array,
             ),
             TinyUSBDevicePlugin(arg_c_fnames),
             NewlibPlugin(),