PAL File for Arm BareMetal Executor Runner

examples/arm/executor_runner/arm_executor_runner.cpp

@@ -14,6 +14,7 @@
 #include <executorch/runtime/platform/log.h>
 #include <executorch/runtime/platform/platform.h>
 #include <executorch/runtime/platform/runtime.h>
+#include <executorch/runtime/platform/defualt/arm_baremetal.hpp>
 #include <stdio.h>
 #include <unistd.h>
 #include <memory>
@@ -161,73 +162,6 @@ unsigned char* ethosu_fast_scratch = dedicated_sram;
 }
 #endif
 
-void et_pal_init(void) {
-  // Enable ARM PMU Clock
-  ARM_PMU_Enable();
-  DCB->DEMCR |= DCB_DEMCR_TRCENA_Msk; // Trace enable
-  ARM_PMU_CYCCNT_Reset();
-  ARM_PMU_CNTR_Enable(PMU_CNTENSET_CCNTR_ENABLE_Msk);
-}
-
-/**
- * Implementation of the et_pal_<funcs>()
- *
- * This functions are hardware adaption type of functions for things like
- * time/logging/memory allocation that could call your RTOS or need to to
- * be implemnted in some way.
- */
-
-ET_NORETURN void et_pal_abort(void) {
-#if !defined(SEMIHOSTING)
-  __builtin_trap();
-#else
-  _exit(-1);
-#endif
-}
-
-et_timestamp_t et_pal_current_ticks(void) {
-  return ARM_PMU_Get_CCNTR();
-}
-
-et_tick_ratio_t et_pal_ticks_to_ns_multiplier(void) {
-  // Since we don't know the CPU freq for your target and justs cycles in the
-  // FVP for et_pal_current_ticks() we return a conversion ratio of 1
-  return {1, 1};
-}
-
-/**
- * Emit a log message via platform output (serial port, console, etc).
- */
-void et_pal_emit_log_message(
-    ET_UNUSED et_timestamp_t timestamp,
-    et_pal_log_level_t level,
-    const char* filename,
-    ET_UNUSED const char* function,
-    size_t line,
-    const char* message,
-    ET_UNUSED size_t length) {
-  fprintf(
-      stderr,
-      "%c [executorch:%s:%zu %s()] %s\n",
-      level,
-      filename,
-      line,
-      function,
-      message);
-}
-
-/**
- * Dynamic memory allocators intended to be used by temp_allocator
- * to implement malloc()/free() type of allocations.
- * Currenyly not used.
- */
-
-void* et_pal_allocate(ET_UNUSED size_t size) {
-  return nullptr;
-}
-
-void et_pal_free(ET_UNUSED void* ptr) {}
-
 namespace {
 
 /// Lightweight heapless container that constructs and stores a T in-place.

runtime/platform/default/arm_baremetal.hpp

@@ -0,0 +1,71 @@
+#ifndef __ARM_BARE_METAL_HPP__
+#define __ARM_BARE_METAL_HPP__
+
+void et_pal_init(void) {
+  // Enable ARM PMU Clock
+  ARM_PMU_Enable();
+  DCB->DEMCR |= DCB_DEMCR_TRCENA_Msk; // Trace enable
+  ARM_PMU_CYCCNT_Reset();
+  ARM_PMU_CNTR_Enable(PMU_CNTENSET_CCNTR_ENABLE_Msk);
+}
+
+/**
+ * Implementation of the et_pal_<funcs>()
+ *
+ * This functions are hardware adaption type of functions for things like
+ * time/logging/memory allocation that could call your RTOS or need to to
+ * be implemnted in some way.
+ */
+
+ET_NORETURN void et_pal_abort(void) {
+#if !defined(SEMIHOSTING)
+  __builtin_trap();
+#else
+  _exit(-1);
+#endif
+}
+
+et_timestamp_t et_pal_current_ticks(void) {
+  return ARM_PMU_Get_CCNTR();
+}
+
+et_tick_ratio_t et_pal_ticks_to_ns_multiplier(void) {
+  // Since we don't know the CPU freq for your target and justs cycles in the
+  // FVP for et_pal_current_ticks() we return a conversion ratio of 1
+  return {1, 1};
+}
+
+/**
+ * Emit a log message via platform output (serial port, console, etc).
+ */
+void et_pal_emit_log_message(
+    ET_UNUSED et_timestamp_t timestamp,
+    et_pal_log_level_t level,
+    const char* filename,
+    ET_UNUSED const char* function,
+    size_t line,
+    const char* message,
+    ET_UNUSED size_t length) {
+  fprintf(
+      stderr,
+      "%c [executorch:%s:%zu %s()] %s\n",
+      level,
+      filename,
+      line,
+      function,
+      message);
+}
+
+/**
+ * Dynamic memory allocators intended to be used by temp_allocator
+ * to implement malloc()/free() type of allocations.
+ * Currenyly not used.
+ */
+
+void* et_pal_allocate(ET_UNUSED size_t size) {
+  return nullptr;
+}
+
+void et_pal_free(ET_UNUSED void* ptr) {}
+
+#endif // __ARM_BARE_METAL_HPP__