Import of the watch repository from Pebble

tools/applib_malloc.template.c

@@ -0,0 +1,118 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * 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.
+ */
+
+//! @file ${filename}
+//! This file is autogenerated by tools/applib_malloc.py
+
+
+#include "kernel/pbl_malloc.h"
+#include "kernel/pebble_tasks.h"
+#include "mcu/privilege.h"
+#include "process_management/process_manager.h"
+#include "system/passert.h"
+
+
+${includes}
+
+
+typedef struct {
+  size_t actual_size; //!< The size of the struct as it's currently implemented without padding
+  size_t size_2x; //!< The size we struct allocation should be for legacy2 apps
+  size_t size_3x; //!< The size we struct allocation should be for 3.x apps
+} ApplibTypeInfo;
+
+typedef enum {
+  ${applib_enum_types}
+} ApplibType;
+
+
+static const ApplibTypeInfo s_applib_malloc_types[] = {
+  ${applib_malloc_types}
+};
+
+
+static size_t prv_find_size(int index) {
+  const ApplibTypeInfo *type = &s_applib_malloc_types[index];
+
+  if (mcu_state_is_thread_privileged()) {
+    return type->actual_size;
+  }
+
+  if (process_manager_compiled_with_legacy2_sdk()) {
+    return type->size_2x;
+  }
+
+  return type->size_3x;
+}
+
+static void* prv_malloc(size_t size, uintptr_t client_pc) {
+  if (!size) {
+    return NULL;
+  }
+
+#if defined(MALLOC_INSTRUMENTATION)
+  void *result = task_malloc_with_pc(size, client_pc);
+#else
+  void *result = task_malloc(size);
+#endif
+
+  if (!result && mcu_state_is_thread_privileged()) {
+    // We want to trip an assert if our malloc failed and we're not running a 3rd party app.
+    PBL_CROAK_OOM(size, client_pc, task_heap_get_for_current_task());
+  }
+
+  return result;
+}
+
+static void* prv_zalloc(size_t size, uintptr_t client_pc) {
+  void *result = prv_malloc(size, client_pc);
+
+  if (result) {
+    memset(result, 0, size);
+  }
+
+  return result;
+}
+
+void* applib_malloc(size_t size) {
+#if defined(MALLOC_INSTRUMENTATION)
+  register uintptr_t lr __asm("lr");
+  uintptr_t saved_lr = lr;
+  return prv_malloc(size, saved_lr);
+#else
+  return prv_malloc(size, 0);
+#endif
+}
+
+void* applib_zalloc(size_t size) {
+#if defined(MALLOC_INSTRUMENTATION)
+  register uintptr_t lr __asm("lr");
+  uintptr_t saved_lr = lr;
+  return prv_zalloc(size, saved_lr);
+#else
+  return prv_zalloc(size, 0);
+#endif
+}
+
+void applib_free(void *ptr) {
+#if defined(MALLOC_INSTRUMENTATION)
+  register uintptr_t lr __asm("lr");
+  uintptr_t saved_lr = lr;
+  task_free_with_pc(ptr, saved_lr);
+#else
+  task_free(ptr);
+#endif
+}