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[PATCH 10/19] include/qemu: Added tsan.h for annotations.
From: |
Robert Foley |
Subject: |
[PATCH 10/19] include/qemu: Added tsan.h for annotations. |
Date: |
Fri, 22 May 2020 12:07:46 -0400 |
These annotations will allow us to give tsan
additional hints. For example, we can inform
tsan about reads/writes to ignore to silence certain
classes of warnings.
We can also annotate threads so that the proper thread
naming shows up in tsan warning results.
Signed-off-by: Robert Foley <address@hidden>
---
include/qemu/tsan.h | 48 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 48 insertions(+)
create mode 100644 include/qemu/tsan.h
diff --git a/include/qemu/tsan.h b/include/qemu/tsan.h
new file mode 100644
index 0000000000..8b7d0acf3e
--- /dev/null
+++ b/include/qemu/tsan.h
@@ -0,0 +1,48 @@
+#ifndef QEMU_TSAN_H
+#define QEMU_TSAN_H
+/*
+ * tsan.h
+ *
+ * This file defines macros used to give ThreadSanitizer
+ * additional information to help suppress warnings.
+ * This is necessary since TSan does not provide a header file
+ * for these annotations. The standard way to include these
+ * is via the below macros.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifdef CONFIG_TSAN
+#define TSAN_ANNOTATE_HAPPENS_BEFORE(addr) \
+ AnnotateHappensBefore(__FILE__, __LINE__, (void *)(addr))
+#define TSAN_ANNOTATE_HAPPENS_AFTER(addr) \
+ AnnotateHappensAfter(__FILE__, __LINE__, (void *)(addr))
+#define TSAN_ANNOTATE_THREAD_NAME(name) \
+ AnnotateThreadName(__FILE__, __LINE__, (void *)(name))
+#define TSAN_ANNOTATE_IGNORE_READS_BEGIN() \
+ AnnotateIgnoreReadsBegin(__FILE__, __LINE__)
+#define TSAN_ANNOTATE_IGNORE_READS_END() \
+ AnnotateIgnoreReadsEnd(__FILE__, __LINE__)
+#define TSAN_ANNOTATE_IGNORE_WRITES_BEGIN() \
+ AnnotateIgnoreWritesBegin(__FILE__, __LINE__)
+#define TSAN_ANNOTATE_IGNORE_WRITES_END() \
+ AnnotateIgnoreWritesEnd(__FILE__, __LINE__)
+#else
+#define TSAN_ANNOTATE_HAPPENS_BEFORE(addr)
+#define TSAN_ANNOTATE_HAPPENS_AFTER(addr)
+#define TSAN_ANNOTATE_THREAD_NAME(name)
+#define TSAN_ANNOTATE_IGNORE_READS_BEGIN()
+#define TSAN_ANNOTATE_IGNORE_READS_END()
+#define TSAN_ANNOTATE_IGNORE_WRITES_BEGIN()
+#define TSAN_ANNOTATE_IGNORE_WRITES_END()
+#endif
+
+void AnnotateHappensBefore(const char *f, int l, void *addr);
+void AnnotateHappensAfter(const char *f, int l, void *addr);
+void AnnotateThreadName(const char *f, int l, char *name);
+void AnnotateIgnoreReadsBegin(const char *f, int l);
+void AnnotateIgnoreReadsEnd(const char *f, int l);
+void AnnotateIgnoreWritesBegin(const char *f, int l);
+void AnnotateIgnoreWritesEnd(const char *f, int l);
+#endif
--
2.17.1
- Re: [PATCH 02/19] cpu: convert queued work to a QSIMPLEQ, (continued)
- [PATCH 03/19] thread: add qemu_spin_destroy, Robert Foley, 2020/05/22
- [PATCH 04/19] cputlb: destroy CPUTLB with tlb_destroy, Robert Foley, 2020/05/22
- [PATCH 06/19] tcg: call qemu_spin_destroy for tb->jmp_lock, Robert Foley, 2020/05/22
- [PATCH 07/19] translate-all: call qemu_spin_destroy for PageDesc, Robert Foley, 2020/05/22
- [PATCH 08/19] thread: add tsan annotations to QemuSpin, Robert Foley, 2020/05/22
- [PATCH 09/19] tests/docker: Added docker build support for TSan., Robert Foley, 2020/05/22
- [PATCH 11/19] accel/tcg: Fixed tsan warnings related to parallel_cpus, Robert Foley, 2020/05/22
- [PATCH 10/19] include/qemu: Added tsan.h for annotations.,
Robert Foley <=
- [PATCH 12/19] configure: added tsan support for blacklist., Robert Foley, 2020/05/22
- [PATCH 13/19] accel/tcg: Fixed tsan warnings., Robert Foley, 2020/05/22
- [PATCH 05/19] qht: call qemu_spin_destroy for head buckets, Robert Foley, 2020/05/22