commit 8b2ccc977059739db63424b26b1c455e7390d826
author Brandon Kinman <bkinman@google.com> Tue Feb 15 12:35:32 2022 -0800
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> Tue Feb 15 22:38:59 2022 +0000
tree 663ba5724aea73c54566db76bbdca590098c6bcd
parent cf117ea1eb0bba85d451272aee44c265636f8780

pw_system: Added Cortex M7f as a supported CPU

Change-Id: Icca01d13bd681822963ddefbc077e890b23d7584
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/84583
Reviewed-by: Armando Montanez <amontanez@google.com>
Commit-Queue: Brandon Kinman <bkinman@google.com>

pw_system/system_target.gni

diff --git a/pw_system/system_target.gni b/pw_system/system_target.gni
index 07c00eb..e149f5a 100644
--- a/pw_system/system_target.gni
+++ b/pw_system/system_target.gni
@@ -26,6 +26,7 @@
 PW_SYSTEM_CPU = {
   CORTEX_M4F = "cortex-m4f"
   CORTEX_M3 = "cortex-m3"
+  CORTEX_M7F = "cortex-m7f"
 
   # Native builds for the host CPU.
   NATIVE = "native"
@@ -46,7 +47,7 @@
 #
 # Args:
 #  cpu: (required) The architecture to target.
-#    Supported choices: PW_SYSTEM_CPU.CORTEX_M4F, PW_SYSTEM_CPU.CORTEX_M3, PW_SYSTEM_CPU.NATIVE
+#    Supported choices: PW_SYSTEM_CPU.CORTEX_M7F, PW_SYSTEM_CPU.CORTEX_M4F, PW_SYSTEM_CPU.CORTEX_M3, PW_SYSTEM_CPU.NATIVE
 #  scheduler: (required) The scheduler implementation and API to use for this
 #    target.
 #    Supported choices: PW_SYSTEM_SCHEDULER.FREERTOS, PW_SYSTEM_SCHEDULER.NATIVE
@@ -93,8 +94,33 @@
   # Populate architecture-specific build args.
   assert(
       defined(invoker.cpu),
-      "Please select a `cpu` for $target_name. Options: PW_SYSTEM_CPU.CORTEX_M4F, PW_SYSTEM_CPU.CORTEX_M3, PW_SYSTEM_CPU.NATIVE")
-  if (invoker.cpu == PW_SYSTEM_CPU.CORTEX_M4F) {
+      "Please select a `cpu` for $target_name. Options: PW_SYSTEM_CPU.CORTEX_M7, PW_SYSTEM_CPU.CORTEX_M4F, PW_SYSTEM_CPU.CORTEX_M3, PW_SYSTEM_CPU.NATIVE")
+  if (invoker.cpu == PW_SYSTEM_CPU.CORTEX_M7F) {
+    _current_cpu = "arm"
+    _default_configs += [ "$dir_pw_toolchain/arm_gcc:enable_float_printf" ]
+    _arch_build_args = {
+      pw_bloat_BLOATY_CONFIG = "$dir_pw_boot_cortex_m/bloaty_config.bloaty"
+      pw_boot_BACKEND = "$dir_pw_boot_cortex_m:armv7m"
+      pw_interrupt_CONTEXT_BACKEND = "$dir_pw_interrupt_cortex_m:context_armv7m"
+    }
+
+    _final_binary_extension = ".elf"
+
+    _toolchains = [
+      {
+        toolchain_base = pw_toolchain_arm_gcc.cortex_m7f_debug
+        level_name = _OPTIMIZATION_LEVELS.DEBUG
+      },
+      {
+        toolchain_base = pw_toolchain_arm_gcc.cortex_m7f_size_optimized
+        level_name = _OPTIMIZATION_LEVELS.SIZE_OPTIMIZED
+      },
+      {
+        toolchain_base = pw_toolchain_arm_gcc.cortex_m7f_speed_optimized
+        level_name = _OPTIMIZATION_LEVELS.SPEED_OPTIMIZED
+      },
+    ]
+  } else if (invoker.cpu == PW_SYSTEM_CPU.CORTEX_M4F) {
     _current_cpu = "arm"
     _default_configs += [ "$dir_pw_toolchain/arm_gcc:enable_float_printf" ]
     _arch_build_args = {