From: Sebastian Huber <sebastian.huber@embedded-brains.de>
To: newlib@sourceware.org
Subject: [PATCH 4/6] cdefs: Make __nosanitizeaddress work for KASAN as well
Date: Mon, 11 Jul 2022 09:15:45 +0200 [thread overview]
Message-ID: <20220711071547.106142-5-sebastian.huber@embedded-brains.de> (raw)
In-Reply-To: <20220711071547.106142-1-sebastian.huber@embedded-brains.de>
From: Mark Johnston <markj@FreeBSD.org>
Add __nosanitizememory while I'm here.
Reviewed by: andrew, kib
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D30126
---
newlib/libc/include/sys/cdefs.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/newlib/libc/include/sys/cdefs.h b/newlib/libc/include/sys/cdefs.h
index 6d179c2b4..7eb6c0430 100644
--- a/newlib/libc/include/sys/cdefs.h
+++ b/newlib/libc/include/sys/cdefs.h
@@ -699,12 +699,18 @@
#define __no_lock_analysis __lock_annotate(no_thread_safety_analysis)
/*
- * Function or variable should not be sanitized, i.e. by AddressSanitizer.
+ * Function or variable should not be sanitized, e.g., by AddressSanitizer.
* GCC has the nosanitize attribute, but as a function attribute only, and
* warns on use as a variable attribute.
*/
#if __has_attribute(no_sanitize) && defined(__clang__)
+#ifdef _KERNEL
+#define __nosanitizeaddress __attribute__((no_sanitize("kernel-address")))
+#define __nosanitizememory __attribute__((no_sanitize("kernel-memory")))
+#else
#define __nosanitizeaddress __attribute__((no_sanitize("address")))
+#define __nosanitizememory __attribute__((no_sanitize("memory")))
+#endif
#define __nosanitizethread __attribute__((no_sanitize("thread")))
#else
#define __nosanitizeaddress
--
2.35.3
next prev parent reply other threads:[~2022-07-11 7:15 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-11 7:15 [PATCH 0/6] Synchronize <sys/cdefs.h> with FreeBSD Sebastian Huber
2022-07-11 7:15 ` [PATCH 1/6] cdefs.h: remove intel_compiler support Sebastian Huber
2022-07-11 8:32 ` Corinna Vinschen
2022-07-11 9:10 ` Sebastian Huber
2022-07-11 9:43 ` Corinna Vinschen
2022-07-11 7:15 ` [PATCH 2/6] Expose clang's alignment builtins and use them for roundup2/rounddown2 Sebastian Huber
2022-07-11 7:15 ` [PATCH 3/6] cdefs.h: Remove __GNUCLIKE___OFFSETOF, it's unused Sebastian Huber
2022-07-11 7:15 ` Sebastian Huber [this message]
2022-07-11 7:15 ` [PATCH 5/6] cdefs: Add a default definition for __nosanitizememory Sebastian Huber
2022-07-11 7:15 ` [PATCH 6/6] cdefs.h: Remove redundant #ifdefs Sebastian Huber
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