From 1bb01220345e0a54f8b70fa7f6dd73c6a697e291 Mon Sep 17 00:00:00 2001
From: pca006132 <john.lck40@gmail.com>
Date: Fri, 17 Jul 2020 16:16:01 +0800
Subject: [PATCH] libsupport_zynq/ram: print heap usage on alloc error.

---
 libsupport_zynq/src/ram.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/libsupport_zynq/src/ram.rs b/libsupport_zynq/src/ram.rs
index 7a3a0af..a712374 100644
--- a/libsupport_zynq/src/ram.rs
+++ b/libsupport_zynq/src/ram.rs
@@ -90,5 +90,11 @@ pub fn init_alloc_core1() {
 
 #[alloc_error_handler]
 fn alloc_error(layout: core::alloc::Layout) -> ! {
-    panic!("Core {} alloc_error, layout: {:?}", MPIDR.read().cpu_id(), layout);
+    let id = MPIDR.read().cpu_id();
+    let heap = if id == 0 {
+        ALLOCATOR.0.lock()
+    } else {
+        ALLOCATOR.1.lock()
+    };
+    panic!("Core {} alloc_error, layout: {:?}, used memory: {}", id, layout, heap.used());
 }