X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;f=config%2FConfig-kernel.in;h=0c9e00d11fe5edf5bd7275ae118e2545c0ca466f;hb=d2af5ab850ce673e2c00cefd07727b9206904af3;hp=979a44660db42b75a37f1a037c4e42fc6fa10ffa;hpb=3d66f551611de37b88182c64efa091298a9e7f2c;p=openwrt%2Fstaging%2Fjow.git

diff --git a/config/Config-kernel.in b/config/Config-kernel.in
index 979a44660d..0c9e00d11f 100644
--- a/config/Config-kernel.in
+++ b/config/Config-kernel.in
@@ -184,16 +184,73 @@ config KERNEL_KASAN_VMALLOC
 	  will have no effect.
 
 if KERNEL_KASAN
-	config KERNEL_KASAN_GENERIC
-	def_bool y
+choice
+	prompt "KASAN mode"
+	depends on KERNEL_KASAN
+	default KERNEL_KASAN_GENERIC
+	help
+	  KASAN has three modes:
+
+	  1. Generic KASAN (supported by many architectures, enabled with
+	     CONFIG_KASAN_GENERIC, similar to userspace ASan),
+	  2. Software Tag-Based KASAN (arm64 only, based on software memory
+	     tagging, enabled with CONFIG_KASAN_SW_TAGS, similar to userspace
+	     HWASan), and
+	  3. Hardware Tag-Based KASAN (arm64 only, based on hardware memory
+	     tagging, enabled with CONFIG_KASAN_HW_TAGS).
+
+config KERNEL_KASAN_GENERIC
+	bool "Generic KASAN"
+	select KERNEL_SLUB_DEBUG
+	help
+	  Enables Generic KASAN.
+
+	  Consumes about 1/8th of available memory at kernel start and adds an
+	  overhead of ~50% for dynamic allocations.
+	  The performance slowdown is ~x3.
+
+config KERNEL_KASAN_SW_TAGS
+	bool "Software Tag-Based KASAN"
+	depends on aarch64
+	select KERNEL_SLUB_DEBUG
+	help
+	  Enables Software Tag-Based KASAN.
+
+	  Supported only on arm64 CPUs and relies on Top Byte Ignore.
+
+	  Consumes about 1/16th of available memory at kernel start and
+	  add an overhead of ~20% for dynamic allocations.
+
+	  May potentially introduce problems related to pointer casting and
+	  comparison, as it embeds a tag into the top byte of each pointer.
+
+config KERNEL_KASAN_HW_TAGS
+	bool "Hardware Tag-Based KASAN"
+	depends on aarch64
+	select KERNEL_SLUB_DEBUG
+	select KERNEL_ARM64_MTE
+	help
+	  Enables Hardware Tag-Based KASAN.
+
+	  Supported only on arm64 CPUs starting from ARMv8.5 and relies on
+	  Memory Tagging Extension and Top Byte Ignore.
+
+	  Consumes about 1/32nd of available memory.
+
+	  May potentially introduce problems related to pointer casting and
+	  comparison, as it embeds a tag into the top byte of each pointer.
+
+endchoice
+
+	config KERNEL_ARM64_MTE
+		def_bool n
 
-	config KERNEL_KASAN_SW_TAGS
-	def_bool n
 endif
 
 choice
 	prompt "Instrumentation type"
 	depends on KERNEL_KASAN
+	depends on !KERNEL_KASAN_HW_TAGS
 	default KERNEL_KASAN_OUTLINE
 
 config KERNEL_KASAN_OUTLINE
@@ -373,6 +430,16 @@ config KERNEL_DEBUG_INFO_BTF
 
 	  Required to run BPF CO-RE applications.
 
+config KERNEL_MODULE_ALLOW_BTF_MISMATCH
+	bool "Allow loading modules with non-matching BTF type info"
+	depends on KERNEL_DEBUG_INFO_BTF
+	help
+	  For modules whose split BTF does not match vmlinux, load without
+	  BTF rather than refusing to load. The default behavior with
+	  module BTF enabled is to reject modules with such mismatches;
+	  this option will still load module BTF where possible but ignore
+	  it when a mismatch is found.
+
 config KERNEL_DEBUG_INFO_REDUCED
 	bool "Reduce debugging information"
 	default y
@@ -387,6 +454,17 @@ config KERNEL_DEBUG_INFO_REDUCED
 	  DEBUG_INFO build and compile times are reduced too.
 	  Only works with newer gcc versions.
 
+config KERNEL_FRAME_WARN
+	int
+	range 0 8192
+	default 1280 if KERNEL_KASAN && !ARCH_64BIT
+	default 1024 if !ARCH_64BIT
+	default 2048 if ARCH_64BIT
+	help
+	  Tell the compiler to warn at build time for stack frames larger than this.
+	  Setting this too low will cause a lot of warnings.
+	  Setting it to 0 disables the warning.
+
 # KERNEL_DEBUG_LL symbols must have the default value set as otherwise
 # KConfig wont evaluate them unless KERNEL_EARLY_PRINTK is selected
 # which means that buildroot wont override the DEBUG_LL symbols in target
@@ -1086,6 +1164,12 @@ config KERNEL_NET_L3_MASTER_DEV
 	  This module provides glue between core networking code and device
 	  drivers to support L3 master devices like VRF.
 
+config KERNEL_XDP_SOCKETS
+	bool "XDP sockets support"
+	help
+	  XDP sockets allows a channel between XDP programs and
+	  userspace applications.
+
 config KERNEL_WIRELESS_EXT
 	def_bool n
 
@@ -1107,7 +1191,6 @@ config KERNEL_PAGE_POOL
 config KERNEL_PAGE_POOL_STATS
 	bool "Page pool stats support"
 	depends on KERNEL_PAGE_POOL
-	depends on !LINUX_5_10
 
 #
 # NFS related symbols
@@ -1323,3 +1406,19 @@ config KERNEL_UBIFS_FS_SECURITY
 
 config KERNEL_JFFS2_FS_SECURITY
 	bool "JFFS2 Security Labels"
+
+config KERNEL_WERROR
+	bool "Compile the kernel with warnings as errors"
+	default BUILDBOT
+	default y if GCC_USE_VERSION_12
+	help
+	  A kernel build should not cause any compiler warnings, and this
+	  enables the '-Werror' (for C) and '-Dwarnings' (for Rust) flags
+	  to enforce that rule by default. Certain warnings from other tools
+	  such as the linker may be upgraded to errors with this option as
+	  well.
+
+	  However, if you have a new (or very old) compiler or linker with odd
+	  and unusual warnings, or you have some architecture with problems,
+	  you may need to disable this config option in order to
+	  successfully build the kernel.