stack usage measurement

[avr-crypto-lib.git] / stack_measuring.h

diff --git a/stack_measuring.h b/stack_measuring.h
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+/* stack_measuring.h */
+/*
+    This file is part of the AVR-Crypto-Lib.
+    Copyright (C) 2010 Daniel Otte (daniel.otte@rub.de)
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef STACK_MEASURING_H_
+#define STACK_MEASURING_H_
+
+#include <stdint.h>
+
+typedef struct {
+       uint16_t heap_top;
+       uint16_t stack_bottom;
+       uint8_t pattern;
+} stack_measuring_ctx_t;
+
+void stack_measure_init(stack_measuring_ctx_t* ctx, uint8_t pattern);
+uint16_t stack_measure_final(const stack_measuring_ctx_t* ctx);
+/* for testing only
+ void stack_measure_usestack(uint16_t size, uint8_t value); */
+
+#endif /* STACK_MEASURING_H_ */