aboutsummaryrefslogtreecommitdiff
path: root/include/linux/compiler_attributes.h
diff options
context:
space:
mode:
authorDmitry Torokhov <[email protected]>2022-12-12 10:47:03 -0800
committerDmitry Torokhov <[email protected]>2022-12-12 10:47:03 -0800
commite291c116f60f3c1ca98090f0f8e7c77e658562fb (patch)
tree2fbe810f2a6f8b29f1cdaefd87b24debbfa0ec07 /include/linux/compiler_attributes.h
parent8c9a59939deb4bfafdc451100c03d1e848b4169b (diff)
parentc3991107a28a5ad0bd90660ca3bbf8c2c220ea98 (diff)
Merge branch 'next' into for-linus
Prepare input updates for 6.2 merge window.
Diffstat (limited to 'include/linux/compiler_attributes.h')
-rw-r--r--include/linux/compiler_attributes.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/include/linux/compiler_attributes.h b/include/linux/compiler_attributes.h
index 445e80517cab..898b3458b24a 100644
--- a/include/linux/compiler_attributes.h
+++ b/include/linux/compiler_attributes.h
@@ -35,7 +35,8 @@
/*
* Note: do not use this directly. Instead, use __alloc_size() since it is conditionally
- * available and includes other attributes.
+ * available and includes other attributes. For GCC < 9.1, __alloc_size__ gets undefined
+ * in compiler-gcc.h, due to misbehaviors.
*
* gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-alloc_005fsize-function-attribute
* clang: https://clang.llvm.org/docs/AttributeReference.html#alloc-size
@@ -371,4 +372,11 @@
*/
#define __weak __attribute__((__weak__))
+/*
+ * Used by functions that use '__builtin_return_address'. These function
+ * don't want to be splited or made inline, which can make
+ * the '__builtin_return_address' get unexpected address.
+ */
+#define __fix_address noinline __noclone
+
#endif /* __LINUX_COMPILER_ATTRIBUTES_H */