[to-be-updated] kbuild-add-debug-level-and-macro-defs-options.patch removed from -mm tree

[to-be-updated] kbuild-add-debug-level-and-macro-defs-options.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: kbuild: add debug level and macro defs options
has been removed from the -mm tree.  Its filename was
     kbuild-add-debug-level-and-macro-defs-options.patch

This patch was dropped because an updated version will be merged

------------------------------------------------------
From: Dmitrii Bundin <dmitrii.bundin.a@gmail.com>
Subject: kbuild: add debug level and macro defs options
Date: Mon, 15 Aug 2022 04:33:17 +0300

Add config options to control debug info level and producing of macro
definitions for GCC/Clang.

Option DEBUG_INFO_LEVEL is responsible for controlling debug info level. 
Before GCC 11 and Clang 12 -gsplit-dwarf implicitly uses -g2.  To provide
a way to override the setting with, e.g.  -g1, DEBUG_INFO_LEVEL is set
independently from DEBUG_INFO_SPLIT.

Option DEBUG_MACRO_DEFINITIONS is responsible for controlling inclusion of
macro definitions.  Since Clang uses -fdebug-macro to control if macro
definitions are produced which is different from GCC, provides a
compiler-specific way of handling macro inclusion.  The option is handled
after DEBUG_INFO_LEVEL since -g3 -g2 implies -g2, but -g2 -g3 implies -g3
and GCC uses -g3 to produce macro definitions.

Link: https://lkml.kernel.org/r/20220815013317.26121-1-dmitrii.bundin.a@gmail.com
Signed-off-by: Dmitrii Bundin <dmitrii.bundin.a@gmail.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Isabella Basso <isabbasso@riseup.net>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 lib/Kconfig.debug      |   20 ++++++++++++++++++++
 scripts/Makefile.debug |   12 ++++++++++--
 2 files changed, 30 insertions(+), 2 deletions(-)

--- a/lib/Kconfig.debug~kbuild-add-debug-level-and-macro-defs-options
+++ a/lib/Kconfig.debug
@@ -304,6 +304,26 @@ config DEBUG_INFO_REDUCED
 	  DEBUG_INFO build and compile times are reduced too.
 	  Only works with newer gcc versions.
 
+config DEBUG_INFO_LEVEL
+	int "Debug info level"
+	range 1 3
+	default "2"
+	help
+	  Sets the level of how much debug information to generate (-glevel).
+	  Level 1 produces minimal debug information without including information
+	  about local variables. Level 3 includes extra information like macro
+	  definitions. Setting up level 3 will require significantly more disk
+	  space and increase built time.
+
+config DEBUG_MACRO_DEFINITIONS
+	bool "Add macro definitions to debug info"
+	default n
+	help
+	  Generates macro definitions to provide a way to expand macros right
+	  in the debugging session. This information can be used with macro expand,
+	  info macro in gdb. This option is equivalent to setting -g3 in GCC and
+	  -fdebug-macro in Clang.
+
 config DEBUG_INFO_COMPRESSED
 	bool "Compressed debugging information"
 	depends on $(cc-option,-gz=zlib)
--- a/scripts/Makefile.debug~kbuild-add-debug-level-and-macro-defs-options
+++ a/scripts/Makefile.debug
@@ -2,8 +2,6 @@ DEBUG_CFLAGS	:=
 
 ifdef CONFIG_DEBUG_INFO_SPLIT
 DEBUG_CFLAGS	+= -gsplit-dwarf
-else
-DEBUG_CFLAGS	+= -g
 endif
 
 ifndef CONFIG_AS_IS_LLVM
@@ -16,6 +14,16 @@ dwarf-version-$(CONFIG_DEBUG_INFO_DWARF5
 DEBUG_CFLAGS	+= -gdwarf-$(dwarf-version-y)
 endif
 
+DEBUG_CFLAGS	+= -g$(CONFIG_DEBUG_INFO_LEVEL)
+ifdef CONFIG_DEBUG_MACRO_DEFINITIONS
+ifdef CONFIG_CC_IS_GCC
+DEBUG_CFLAGS	+= -g3
+endif
+ifdef CONFIG_CC_IS_CLANG
+DEBUG_CFLAGS	+= -fdebug-macro
+endif
+endif
+
 ifdef CONFIG_DEBUG_INFO_REDUCED
 DEBUG_CFLAGS	+= -fno-var-tracking
 ifdef CONFIG_CC_IS_GCC
_

Patches currently in -mm which might be from dmitrii.bundin.a@gmail.com are