Merge tag 'kbuild-fixes-v6.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Fix build error for the combination of SYSTEM_TRUSTED_KEYRING=y and
X509_CERTIFICATE_PARSER=m
- Fix DEBUG_INFO_SPLIT to generate debug info for GCC 11+ and Clang 12+
- Revive debug info for assembly files
- Remove unused code
* tag 'kbuild-fixes-v6.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
Makefile.debug: re-enable debug info for .S files
Makefile.debug: set -g unconditional on CONFIG_DEBUG_INFO_SPLIT
certs: make system keyring depend on built-in x509 parser
Kconfig: remove unused function 'menu_get_root_menu'
scripts/clang-tools: remove unused module
diff --git a/certs/Kconfig b/certs/Kconfig
index bf9b511..1f109b0 100644
--- a/certs/Kconfig
+++ b/certs/Kconfig
@@ -43,7 +43,7 @@
bool "Provide system-wide ring of trusted keys"
depends on KEYS
depends on ASYMMETRIC_KEY_TYPE
- depends on X509_CERTIFICATE_PARSER
+ depends on X509_CERTIFICATE_PARSER = y
help
Provide a system keyring to which trusted keys can be added. Keys in
the keyring are considered to be trusted. Keys may be added at will
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index bcbe60d..d3e5f36 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -264,8 +264,10 @@
config DEBUG_INFO_DWARF4
bool "Generate DWARF Version 4 debuginfo"
select DEBUG_INFO
+ depends on !CC_IS_CLANG || (CC_IS_CLANG && (AS_IS_LLVM || (AS_IS_GNU && AS_VERSION >= 23502)))
help
- Generate DWARF v4 debug info. This requires gcc 4.5+ and gdb 7.0+.
+ Generate DWARF v4 debug info. This requires gcc 4.5+, binutils 2.35.2
+ if using clang without clang's integrated assembler, and gdb 7.0+.
If you have consumers of DWARF debug info that are not ready for
newer revisions of DWARF, you may wish to choose this or have your
diff --git a/scripts/Makefile.debug b/scripts/Makefile.debug
index 9f39b01..8cf1cb2 100644
--- a/scripts/Makefile.debug
+++ b/scripts/Makefile.debug
@@ -1,20 +1,19 @@
DEBUG_CFLAGS :=
+debug-flags-y := -g
ifdef CONFIG_DEBUG_INFO_SPLIT
DEBUG_CFLAGS += -gsplit-dwarf
-else
-DEBUG_CFLAGS += -g
endif
-ifndef CONFIG_AS_IS_LLVM
-KBUILD_AFLAGS += -Wa,-gdwarf-2
+debug-flags-$(CONFIG_DEBUG_INFO_DWARF4) += -gdwarf-4
+debug-flags-$(CONFIG_DEBUG_INFO_DWARF5) += -gdwarf-5
+ifeq ($(CONFIG_CC_IS_CLANG)$(CONFIG_AS_IS_GNU),yy)
+# Clang does not pass -g or -gdwarf-* option down to GAS.
+# Add -Wa, prefix to explicitly specify the flags.
+KBUILD_AFLAGS += $(addprefix -Wa$(comma), $(debug-flags-y))
endif
-
-ifndef CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
-dwarf-version-$(CONFIG_DEBUG_INFO_DWARF4) := 4
-dwarf-version-$(CONFIG_DEBUG_INFO_DWARF5) := 5
-DEBUG_CFLAGS += -gdwarf-$(dwarf-version-y)
-endif
+DEBUG_CFLAGS += $(debug-flags-y)
+KBUILD_AFLAGS += $(debug-flags-y)
ifdef CONFIG_DEBUG_INFO_REDUCED
DEBUG_CFLAGS += -fno-var-tracking
@@ -29,5 +28,5 @@
KBUILD_LDFLAGS += --compress-debug-sections=zlib
endif
-KBUILD_CFLAGS += $(DEBUG_CFLAGS)
+KBUILD_CFLAGS += $(DEBUG_CFLAGS)
export DEBUG_CFLAGS
diff --git a/scripts/clang-tools/run-clang-tools.py b/scripts/clang-tools/run-clang-tools.py
index 1337ced..bb78c9b 100755
--- a/scripts/clang-tools/run-clang-tools.py
+++ b/scripts/clang-tools/run-clang-tools.py
@@ -12,7 +12,6 @@
import argparse
import json
import multiprocessing
-import os
import subprocess
import sys
diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index fa8c010..c396aa1 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -98,7 +98,6 @@
bool menu_is_visible(struct menu *menu);
bool menu_has_prompt(struct menu *menu);
const char *menu_get_prompt(struct menu *menu);
-struct menu *menu_get_root_menu(struct menu *menu);
struct menu *menu_get_parent_menu(struct menu *menu);
bool menu_has_help(struct menu *menu);
const char *menu_get_help(struct menu *menu);
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 3d6f7cb..62b6313 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -661,11 +661,6 @@
return NULL;
}
-struct menu *menu_get_root_menu(struct menu *menu)
-{
- return &rootmenu;
-}
-
struct menu *menu_get_parent_menu(struct menu *menu)
{
enum prop_type type;
