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From: Simon Glass <sjg@chromium.org>
To: u-boot@lists.denx.de
Subject: [PATCH 14/19] test: Add functions to find the amount of allocated memory
Date: Sun, 29 Dec 2019 21:19:23 -0700	[thread overview]
Message-ID: <20191229211913.14.Iba2e53de0345ab0cf75d2f927f931a2ceb1225dd@changeid> (raw)
In-Reply-To: <20191230041928.74874-1-sjg@chromium.org>

The malloc() implementations provides a way of finding out the approximate
amount of memory that is allocated. Add helper functions to make it easier
to access this and see changes over time. This is useful for tests that
want to check if memory has been allocated or freed.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

 include/test/ut.h | 16 ++++++++++++++++
 test/ut.c         | 14 ++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/include/test/ut.h b/include/test/ut.h
index fbfde10719..f616c202f3 100644
--- a/include/test/ut.h
+++ b/include/test/ut.h
@@ -149,4 +149,20 @@ void ut_failf(struct unit_test_state *uts, const char *fname, int line,
 /* Assert that an operation succeeds (returns 0) */
 #define ut_assertok(cond)	ut_asserteq(0, cond)
 
+/**
+ * ut_check_free() - Return the number of bytes free in the malloc() pool
+ *
+ * @return bytes free
+ */
+ulong ut_check_free(void);
+
+/**
+ * ut_check_delta() - Return the number of bytes allocated/freed
+ *
+ * @last: Last value from ut_check_free
+ * @return free memory delta from @last; positive means more memory has been
+ *	allocated, negative means less has been allocated (i.e. some is freed)
+ */
+long ut_check_delta(ulong last);
+
 #endif
diff --git a/test/ut.c b/test/ut.c
index 55798041ba..265da4a0d8 100644
--- a/test/ut.c
+++ b/test/ut.c
@@ -6,6 +6,7 @@
  */
 
 #include <common.h>
+#include <malloc.h>
 #include <test/test.h>
 #include <test/ut.h>
 
@@ -32,3 +33,16 @@ void ut_failf(struct unit_test_state *uts, const char *fname, int line,
 	putc('\n');
 	uts->fail_count++;
 }
+
+ulong ut_check_free(void)
+{
+	struct mallinfo info = mallinfo();
+
+	return info.uordblks;
+}
+
+long ut_check_delta(ulong last)
+{
+	return ut_check_free() - last;
+}
+
-- 
2.24.1.735.g03f4e72817-goog

  parent reply	other threads:[~2019-12-30  4:19 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-30  4:19 [PATCH 00/19] dm: core: Fully separate ofdata_to_platdata() from probe() Simon Glass
2019-12-30  4:19 ` [PATCH 01/19] common: Add a noisy assert() Simon Glass
2019-12-30  4:19 ` [PATCH 02/19] dm: core: Use assert_noisy() in devres Simon Glass
2019-12-30  4:19 ` [PATCH 03/19] usb: Drop use of BUG_ON() and WARN_ON() Simon Glass
2019-12-30  4:19 ` [PATCH 04/19] x86: apl: Avoid accessing the PCI bus before it is probed Simon Glass
2019-12-30  4:19 ` [PATCH 05/19] pci: Print a warning if the bus is accessed before probing Simon Glass
2019-12-30  4:19 ` [PATCH 06/19] aspeed: ast2500: Read clock ofdata in the correct method Simon Glass
2020-01-07  8:20   ` Cédric Le Goater
2020-01-09 20:04     ` Simon Glass
2020-01-10  8:57     ` sjg at google.com
2019-12-30  4:19 ` [PATCH 07/19] dm: core: Don't clear active flag twice when probe() fails Simon Glass
2019-12-30  4:19 ` [PATCH 08/19] dm: core: Move ofdata_to_platdata() call earlier Simon Glass
2019-12-30  4:19 ` [PATCH 09/19] dm: core: Allocate parent data separate from probing parent Simon Glass
2019-12-30  4:19 ` [PATCH 10/19] dm: core: Add a comment for DM_FLAG_OF_PLATDATA Simon Glass
2019-12-30  4:19 ` [PATCH 11/19] dm: core: Export a new function to read platdata Simon Glass
2019-12-30  4:19 ` [PATCH 12/19] dm: core: Add a new flag to track platform data Simon Glass
2019-12-30  4:19 ` [PATCH 13/19] dm: devres: Create a new devres header file Simon Glass
2019-12-30  4:19 ` Simon Glass [this message]
2019-12-30  4:19 ` [PATCH 15/19] dm: devres: Convert to use logging Simon Glass
2019-12-30  4:19 ` [PATCH 16/19] dm: test: Add a test driver for devres Simon Glass
2019-12-30  4:19 ` [PATCH 17/19] dm: devres: Add tests Simon Glass
2019-12-30  4:19 ` [PATCH 18/19] dm: devres: Use an enum for the allocation phase Simon Glass
2019-12-30  4:19 ` [PATCH 19/19] dm: devres: Add a new OFDATA phase Simon Glass
2020-01-10  8:57 ` [PATCH 18/19] dm: devres: Use an enum for the allocation phase sjg at google.com
2020-01-10  8:57 ` [PATCH 19/19] dm: devres: Add a new OFDATA phase sjg at google.com
2020-01-10  8:57 ` [PATCH 17/19] dm: devres: Add tests sjg at google.com
2020-01-10  8:57 ` [PATCH 16/19] dm: test: Add a test driver for devres sjg at google.com
2020-01-10  8:57 ` [PATCH 14/19] test: Add functions to find the amount of allocated memory sjg at google.com
2020-01-10  8:57 ` [PATCH 15/19] dm: devres: Convert to use logging sjg at google.com
2020-01-10  8:57 ` [PATCH 13/19] dm: devres: Create a new devres header file sjg at google.com
2020-01-10  8:57 ` [PATCH 12/19] dm: core: Add a new flag to track platform data sjg at google.com
2020-01-10  8:57 ` [PATCH 11/19] dm: core: Export a new function to read platdata sjg at google.com
2020-01-10  8:57 ` [PATCH 10/19] dm: core: Add a comment for DM_FLAG_OF_PLATDATA sjg at google.com
2020-01-10  8:57 ` [PATCH 09/19] dm: core: Allocate parent data separate from probing parent sjg at google.com
2020-01-10  8:57 ` [PATCH 08/19] dm: core: Move ofdata_to_platdata() call earlier sjg at google.com
2020-01-10  8:57 ` [PATCH 07/19] dm: core: Don't clear active flag twice when probe() fails sjg at google.com
2020-01-10  8:57 ` [PATCH 05/19] pci: Print a warning if the bus is accessed before probing sjg at google.com
2020-01-10  8:57 ` [PATCH 04/19] x86: apl: Avoid accessing the PCI bus before it is probed sjg at google.com
2020-01-10  8:57 ` [PATCH 03/19] usb: Drop use of BUG_ON() and WARN_ON() sjg at google.com
2020-01-10  8:57 ` [PATCH 02/19] dm: core: Use assert_noisy() in devres sjg at google.com
2020-01-10  8:57 ` [PATCH 01/19] common: Add a noisy assert() sjg at google.com

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