You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
42 lines
1.7 KiB
42 lines
1.7 KiB
commit d6a58bd81d07322ff5da8f419d8620ef037b6a36 |
|
Author: Siddhesh Poyarekar <siddhesh@sourceware.org> |
|
Date: Wed Jan 12 18:46:28 2022 +0530 |
|
|
|
Enable _FORTIFY_SOURCE=3 for gcc 12 and above |
|
|
|
gcc 12 now has support for the __builtin_dynamic_object_size builtin. |
|
Adapt the macro checks to enable _FORTIFY_SOURCE=3 on gcc 12 and above. |
|
|
|
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org> |
|
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> |
|
(cherry picked from commit 86bf0feb0e3ec8e37872f72499d6ae33406561d7) |
|
|
|
diff --git a/include/features.h b/include/features.h |
|
index d974eabfafc24ffb..933499bcff8f1449 100644 |
|
--- a/include/features.h |
|
+++ b/include/features.h |
|
@@ -412,7 +412,9 @@ |
|
# warning _FORTIFY_SOURCE requires compiling with optimization (-O) |
|
# elif !__GNUC_PREREQ (4, 1) |
|
# warning _FORTIFY_SOURCE requires GCC 4.1 or later |
|
-# elif _FORTIFY_SOURCE > 2 && __glibc_clang_prereq (9, 0) |
|
+# elif _FORTIFY_SOURCE > 2 && (__glibc_clang_prereq (9, 0) \ |
|
+ || __GNUC_PREREQ (12, 0)) |
|
+ |
|
# if _FORTIFY_SOURCE > 3 |
|
# warning _FORTIFY_SOURCE > 3 is treated like 3 on this platform |
|
# endif |
|
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h |
|
index 3bb9f38916e30295..515fb681a0547217 100644 |
|
--- a/misc/sys/cdefs.h |
|
+++ b/misc/sys/cdefs.h |
|
@@ -142,7 +142,8 @@ |
|
#define __bos0(ptr) __builtin_object_size (ptr, 0) |
|
|
|
/* Use __builtin_dynamic_object_size at _FORTIFY_SOURCE=3 when available. */ |
|
-#if __USE_FORTIFY_LEVEL == 3 && __glibc_clang_prereq (9, 0) |
|
+#if __USE_FORTIFY_LEVEL == 3 && (__glibc_clang_prereq (9, 0) \ |
|
+ || __GNUC_PREREQ (12, 0)) |
|
# define __glibc_objsize0(__o) __builtin_dynamic_object_size (__o, 0) |
|
# define __glibc_objsize(__o) __builtin_dynamic_object_size (__o, 1) |
|
#else
|
|
|