X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=lib%2FKconfig.debug;h=f71db0cc3bf1d1e0425446bdb32957ee2e7f6fd1;hb=refs%2Fheads%2Faccepted%2Ftizen_8.0_unified;hp=ed4a31e34098defa61c88823c9e566dbea422417;hpb=f81fd21476187275b0d8181fbe8c18a6f47d9139;p=platform%2Fkernel%2Flinux-rpi.git

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index ed4a31e..f71db0cc 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -208,6 +208,11 @@ config DEBUG_BUGVERBOSE
 
 endmenu # "printk and dmesg options"
 
+# Clang is known to generate .{s,u}leb128 with symbol deltas with DWARF5, which
+# some targets may not support: https://sourceware.org/bugzilla/show_bug.cgi?id=27215
+config AS_HAS_NON_CONST_LEB128
+	def_bool $(as-instr,.uleb128 .Lexpr_end4 - .Lexpr_start3\n.Lexpr_start3:\n.Lexpr_end4:)
+
 menu "Compile-time checks and compiler options"
 
 config DEBUG_INFO
@@ -274,6 +279,7 @@ choice
 
 config DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
 	bool "Rely on the toolchain's implicit default DWARF version"
+	depends on !CC_IS_CLANG || AS_IS_LLVM || CLANG_VERSION < 140000 || (AS_IS_GNU && AS_VERSION >= 23502 && AS_HAS_NON_CONST_LEB128)
 	help
 	  The implicit default version of DWARF debug info produced by a
 	  toolchain changes over time.
@@ -295,7 +301,7 @@ config DEBUG_INFO_DWARF4
 
 config DEBUG_INFO_DWARF5
 	bool "Generate DWARF Version 5 debuginfo"
-	depends on GCC_VERSION >= 50000 || (CC_IS_CLANG && (AS_IS_LLVM || (AS_IS_GNU && AS_VERSION >= 23502)))
+	depends on !CC_IS_CLANG || AS_IS_LLVM || (AS_IS_GNU && AS_VERSION >= 23502 && AS_HAS_NON_CONST_LEB128)
 	depends on !DEBUG_INFO_BTF
 	help
 	  Generate DWARF v5 debug info. Requires binutils 2.35.2, gcc 5.0+ (gcc
@@ -346,8 +352,10 @@ config FRAME_WARN
 	int "Warn for stack frames larger than"
 	range 0 8192
 	default 2048 if GCC_PLUGIN_LATENT_ENTROPY
-	default 1536 if (!64BIT && PARISC)
-	default 1024 if (!64BIT && !PARISC)
+	default 2048 if PARISC
+	default 1536 if (!64BIT && XTENSA)
+	default 1280 if KASAN && !64BIT
+	default 1024 if !64BIT
 	default 2048 if 64BIT
 	help
 	  Tell gcc to warn at build time for stack frames larger than this.
@@ -414,7 +422,8 @@ config SECTION_MISMATCH_WARN_ONLY
 	  If unsure, say Y.
 
 config DEBUG_FORCE_FUNCTION_ALIGN_64B
-	bool "Force all function address 64B aligned" if EXPERT
+	bool "Force all function address 64B aligned"
+	depends on EXPERT && (X86_64 || ARM64 || PPC32 || PPC64 || ARC)
 	help
 	  There are cases that a commit from one domain changes the function
 	  address alignment of other domains, and cause magic performance
@@ -1558,8 +1567,7 @@ config WARN_ALL_UNSEEDED_RANDOM
 	  so architecture maintainers really need to do what they can
 	  to get the CRNG seeded sooner after the system is booted.
 	  However, since users cannot do anything actionable to
-	  address this, by default the kernel will issue only a single
-	  warning for the first use of unseeded randomness.
+	  address this, by default this option is disabled.
 
 	  Say Y here if you want to receive warnings for all uses of
 	  unseeded randomness.  This will be of use primarily for
@@ -1866,8 +1874,14 @@ config NETDEV_NOTIFIER_ERROR_INJECT
 	  If unsure, say N.
 
 config FUNCTION_ERROR_INJECTION
-	def_bool y
+	bool "Fault-injections of functions"
 	depends on HAVE_FUNCTION_ERROR_INJECTION && KPROBES
+	help
+	  Add fault injections into various functions that are annotated with
+	  ALLOW_ERROR_INJECTION() in the kernel. BPF may also modify the return
+	  value of theses functions. This is useful to test error paths of code.
+
+	  If unsure, say N
 
 config FAULT_INJECTION
 	bool "Fault-injection framework"