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* [newlib-cygwin] cdefs: Make __nosanitizeaddress work for KASAN as well
@ 2022-07-11 9:53 Sebastian Huber
0 siblings, 0 replies; only message in thread
From: Sebastian Huber @ 2022-07-11 9:53 UTC (permalink / raw)
To: newlib-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=8801440e4f8e2d67d94716fafa59847198522f11
commit 8801440e4f8e2d67d94716fafa59847198522f11
Author: Mark Johnston <markj@FreeBSD.org>
Date: Fri May 7 14:26:28 2021 -0400
cdefs: Make __nosanitizeaddress work for KASAN as well
Add __nosanitizememory while I'm here.
Reviewed by: andrew, kib
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D30126
Diff:
---
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
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2022-07-11 9:53 [newlib-cygwin] cdefs: Make __nosanitizeaddress work for KASAN as well Sebastian Huber
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