Merge tag 'kbuild-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - Implement the binary search in modpost for faster symbol lookup

 - Respect HOSTCC when linking host programs written in Rust

 - Change the binrpm-pkg target to generate kernel-devel RPM package

 - Fix endianness issues for tee and ishtp MODULE_DEVICE_TABLE

 - Unify vdso_install rules

 - Remove unused __memexit* annotations

 - Eliminate stale whitelisting for __devinit/__devexit from modpost

 - Enable dummy-tools to handle the -fpatchable-function-entry flag

 - Add 'userldlibs' syntax

* tag 'kbuild-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (30 commits)
  kbuild: support 'userldlibs' syntax
  kbuild: dummy-tools: pretend we understand -fpatchable-function-entry
  kbuild: Correct missing architecture-specific hyphens
  modpost: squash ALL_{INIT,EXIT}_TEXT_SECTIONS to ALL_TEXT_SECTIONS
  modpost: merge sectioncheck table entries regarding init/exit sections
  modpost: use ALL_INIT_SECTIONS for the section check from DATA_SECTIONS
  modpost: disallow the combination of EXPORT_SYMBOL and __meminit*
  modpost: remove EXIT_SECTIONS macro
  modpost: remove MEM_INIT_SECTIONS macro
  modpost: remove more symbol patterns from the section check whitelist
  modpost: disallow *driver to reference .meminit* sections
  linux/init: remove __memexit* annotations
  modpost: remove ALL_EXIT_DATA_SECTIONS macro
  kbuild: simplify cmd_ld_multi_m
  kbuild: avoid too many execution of scripts/pahole-flags.sh
  kbuild: remove ARCH_POSTLINK from module builds
  kbuild: unify no-compiler-targets and no-sync-config-targets
  kbuild: unify vdso_install rules
  docs: kbuild: add INSTALL_DTBS_PATH
  UML: remove unused cmd_vdso_install
  ...

16 files changed, 386 insertions, 219 deletions

diff --git a/scripts/Makefile.btf b/scripts/Makefile.btf
new file mode 100644
index 000000000000..82377e470aed
--- /dev/null
+++ b/scripts/Makefile.btf
@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: GPL-2.0
+
+pahole-ver := $(CONFIG_PAHOLE_VERSION)
+pahole-flags-y :=
+
+# pahole 1.18 through 1.21 can't handle zero-sized per-CPU vars
+ifeq ($(call test-le, $(pahole-ver), 121),y)
+pahole-flags-$(call test-ge, $(pahole-ver), 118)	+= --skip_encoding_btf_vars
+endif
+
+pahole-flags-$(call test-ge, $(pahole-ver), 121)	+= --btf_gen_floats
+
+pahole-flags-$(call test-ge, $(pahole-ver), 122)	+= -j
+
+pahole-flags-$(CONFIG_PAHOLE_HAS_LANG_EXCLUDE)		+= --lang_exclude=rust
+
+pahole-flags-$(call test-ge, $(pahole-ver), 125)	+= --skip_encoding_btf_inconsistent_proto --btf_gen_optimized
+
+export PAHOLE_FLAGS := $(pahole-flags-y)
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index da37bfa97211..9a3063735e71 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -425,7 +425,7 @@ $(obj)/lib.a: $(lib-y) FORCE
 	$(call if_changed,ar)
 
 quiet_cmd_ld_multi_m = LD [M]  $@
-      cmd_ld_multi_m = $(LD) $(ld_flags) -r -o $@ @$(patsubst %.o,%.mod,$@) $(cmd_objtool)
+      cmd_ld_multi_m = $(LD) $(ld_flags) -r -o $@ @$< $(cmd_objtool)
 
 define rule_ld_multi_m
 	$(call cmd_and_savecmd,ld_multi_m)
diff --git a/scripts/Makefile.host b/scripts/Makefile.host
index 8f7f842b54f9..08d83d9db31a 100644
--- a/scripts/Makefile.host
+++ b/scripts/Makefile.host
@@ -91,6 +91,8 @@ hostcxx_flags  = -Wp,-MMD,$(depfile) \
 # current working directory, which may be not accessible in the out-of-tree
 # modules case.
 hostrust_flags = --out-dir $(dir $@) --emit=dep-info=$(depfile) \
+		 -Clinker-flavor=gcc -Clinker=$(HOSTCC) \
+		 -Clink-args='$(call escsq,$(KBUILD_HOSTLDFLAGS))' \
                  $(KBUILD_HOSTRUSTFLAGS) $(HOST_EXTRARUSTFLAGS) \
                  $(HOSTRUSTFLAGS_$(target-stem))
 
diff --git a/scripts/Makefile.modfinal b/scripts/Makefile.modfinal
index b3a6aa8fbe8c..8568d256d6fb 100644
--- a/scripts/Makefile.modfinal
+++ b/scripts/Makefile.modfinal
@@ -28,14 +28,11 @@ quiet_cmd_cc_o_c = CC [M]  $@
 %.mod.o: %.mod.c FORCE
 	$(call if_changed_dep,cc_o_c)
 
-ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
-
 quiet_cmd_ld_ko_o = LD [M]  $@
       cmd_ld_ko_o +=							\
 	$(LD) -r $(KBUILD_LDFLAGS)					\
 		$(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE)		\
-		-T scripts/module.lds -o $@ $(filter %.o, $^);		\
-	$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
+		-T scripts/module.lds -o $@ $(filter %.o, $^)
 
 quiet_cmd_btf_ko = BTF [M] $@
       cmd_btf_ko = 							\
diff --git a/scripts/Makefile.package b/scripts/Makefile.package
index 2bcab02da965..3addd1c0b989 100644
--- a/scripts/Makefile.package
+++ b/scripts/Makefile.package
@@ -69,9 +69,9 @@ $(linux-tarballs): .tmp_HEAD FORCE
 # ---------------------------------------------------------------------------
 
 quiet_cmd_mkspec = GEN     $@
-      cmd_mkspec = $(srctree)/scripts/package/mkspec > $@
+      cmd_mkspec = $(srctree)/scripts/package/mkspec $@
 
-kernel.spec: FORCE
+rpmbuild/SPECS/kernel.spec: FORCE
 	$(call cmd,mkspec)
 
 PHONY += rpm-sources
@@ -88,14 +88,12 @@ srcrpm-pkg: private build-type := s
 binrpm-pkg: private build-type := b
 
 rpm-pkg srcrpm-pkg: rpm-sources
-rpm-pkg srcrpm-pkg binrpm-pkg: kernel.spec
-	+$(strip rpmbuild -b$(build-type) kernel.spec \
+rpm-pkg srcrpm-pkg binrpm-pkg: rpmbuild/SPECS/kernel.spec
+	+$(strip rpmbuild -b$(build-type) rpmbuild/SPECS/kernel.spec \
 	--define='_topdir $(abspath rpmbuild)' \
 	$(if $(filter a b, $(build-type)), \
 		--target $(UTS_MACHINE)-linux --build-in-place --noprep --define='_smp_mflags %{nil}' \
 		$$(rpm -q rpm >/dev/null 2>&1 || echo --nodeps)) \
-	$(if $(filter b, $(build-type)), \
-		--without devel) \
 	$(RPMOPTS))
 
 # deb-pkg srcdeb-pkg bindeb-pkg
diff --git a/scripts/Makefile.userprogs b/scripts/Makefile.userprogs
index fb415297337a..f3a7e1ef3753 100644
--- a/scripts/Makefile.userprogs
+++ b/scripts/Makefile.userprogs
@@ -19,19 +19,19 @@ user-cobjs	:= $(addprefix $(obj)/, $(user-cobjs))
 user_ccflags	= -Wp,-MMD,$(depfile) $(KBUILD_USERCFLAGS) $(userccflags) \
 			$($(target-stem)-userccflags)
 user_ldflags	= $(KBUILD_USERLDFLAGS) $(userldflags) $($(target-stem)-userldflags)
+user_ldlibs	= $(userldlibs) $($(target-stem)-userldlibs)
 
 # Create an executable from a single .c file
 quiet_cmd_user_cc_c = CC [U]  $@
       cmd_user_cc_c = $(CC) $(user_ccflags) $(user_ldflags) -o $@ $< \
-		      $($(target-stem)-userldlibs)
+		      $(user_ldlibs)
 $(user-csingle): $(obj)/%: $(src)/%.c FORCE
 	$(call if_changed_dep,user_cc_c)
 
 # Link an executable based on list of .o files
 quiet_cmd_user_ld = LD [U]  $@
       cmd_user_ld = $(CC) $(user_ldflags) -o $@ \
-		    $(addprefix $(obj)/, $($(target-stem)-objs)) \
-		    $($(target-stem)-userldlibs)
+		    $(addprefix $(obj)/, $($(target-stem)-objs)) $(user_ldlibs)
 $(user-cmulti): FORCE
 	$(call if_changed,user_ld)
 $(call multi_depend, $(user-cmulti), , -objs)
diff --git a/scripts/Makefile.vdsoinst b/scripts/Makefile.vdsoinst
new file mode 100644
index 000000000000..1022d9fdd976
--- /dev/null
+++ b/scripts/Makefile.vdsoinst
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# ==========================================================================
+# Install unstripped copies of vDSO
+# ==========================================================================
+
+PHONY := __default
+__default:
+	@:
+
+include $(srctree)/scripts/Kbuild.include
+
+install-dir := $(MODLIB)/vdso
+
+define gen_install_rules
+
+src := $$(firstword $$(subst :,$(space),$(1)))
+dest := $(install-dir)/$$(or $$(word 2,$$(subst :,$(space),$(1))),$$(patsubst %.dbg,%,$$(notdir $(1))))
+
+__default: $$(dest)
+$$(dest): $$(src) FORCE
+	$$(call cmd,install)
+
+# Some architectures create .build-id symlinks
+ifneq ($(filter arm sparc x86, $(SRCARCH)),)
+link := $(install-dir)/.build-id/$$(shell $(READELF) -n $$(src) | sed -n 's@^.*Build ID: \(..\)\(.*\)@\1/\2@p')
+
+__default: $$(link)
+$$(link): $$(dest) FORCE
+	$$(call cmd,symlink)
+endif
+
+endef
+
+$(foreach x, $(sort $(INSTALL_FILES)), $(eval $(call gen_install_rules,$(x))))
+
+quiet_cmd_install = INSTALL $@
+      cmd_install = mkdir -p $(dir $@); cp $< $@
+
+quiet_cmd_symlink = SYMLINK $@
+      cmd_symlink = mkdir -p $(dir $@); ln -sf --relative $< $@
+
+PHONY += FORCE
+FORCE:
+
+.PHONY: $(PHONY)
diff --git a/scripts/dummy-tools/gcc b/scripts/dummy-tools/gcc
index 07f6dc4c5cf6..e6c41427c02f 100755
--- a/scripts/dummy-tools/gcc
+++ b/scripts/dummy-tools/gcc
@@ -91,6 +91,16 @@ if arg_contain -S "$@"; then
 		fi
 		exit 0
 	fi
+
+	# For arch/powerpc/tools/gcc-check-fpatchable-function-entry.sh
+	if arg_contain -m64 "$@" && arg_contain -fpatchable-function-entry=2 "$@"; then
+		echo "func:"
+		echo ".section __patchable_function_entries"
+		echo ".localentry"
+		echo "  nop"
+		echo "  nop"
+		exit 0
+	fi
 fi
 
 # To set GCC_PLUGINS
diff --git a/scripts/mod/Makefile b/scripts/mod/Makefile
index c9e38ad937fd..3c54125eb373 100644
--- a/scripts/mod/Makefile
+++ b/scripts/mod/Makefile
@@ -5,7 +5,7 @@ CFLAGS_REMOVE_empty.o += $(CC_FLAGS_LTO)
 hostprogs-always-y	+= modpost mk_elfconfig
 always-y		+= empty.o
 
-modpost-objs	:= modpost.o file2alias.o sumversion.o
+modpost-objs	:= modpost.o file2alias.o sumversion.o symsearch.o
 
 devicetable-offsets-file := devicetable-offsets.h
 
@@ -16,7 +16,7 @@ targets += $(devicetable-offsets-file) devicetable-offsets.s
 
 # dependencies on generated files need to be listed explicitly
 
-$(obj)/modpost.o $(obj)/file2alias.o $(obj)/sumversion.o: $(obj)/elfconfig.h
+$(obj)/modpost.o $(obj)/file2alias.o $(obj)/sumversion.o $(obj)/symsearch.o: $(obj)/elfconfig.h
 $(obj)/file2alias.o: $(obj)/$(devicetable-offsets-file)
 
 quiet_cmd_elfconfig = MKELF   $@
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 5bc02ce92958..4829680a0a6d 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -1348,13 +1348,13 @@ static int do_typec_entry(const char *filename, void *symval, char *alias)
 /* Looks like: tee:uuid */
 static int do_tee_entry(const char *filename, void *symval, char *alias)
 {
-	DEF_FIELD(symval, tee_client_device_id, uuid);
+	DEF_FIELD_ADDR(symval, tee_client_device_id, uuid);
 
 	sprintf(alias, "tee:%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
-		uuid.b[0], uuid.b[1], uuid.b[2], uuid.b[3], uuid.b[4],
-		uuid.b[5], uuid.b[6], uuid.b[7], uuid.b[8], uuid.b[9],
-		uuid.b[10], uuid.b[11], uuid.b[12], uuid.b[13], uuid.b[14],
-		uuid.b[15]);
+		uuid->b[0], uuid->b[1], uuid->b[2], uuid->b[3], uuid->b[4],
+		uuid->b[5], uuid->b[6], uuid->b[7], uuid->b[8], uuid->b[9],
+		uuid->b[10], uuid->b[11], uuid->b[12], uuid->b[13], uuid->b[14],
+		uuid->b[15]);
 
 	add_wildcard(alias);
 	return 1;
@@ -1401,10 +1401,10 @@ static int do_mhi_ep_entry(const char *filename, void *symval, char *alias)
 /* Looks like: ishtp:{guid} */
 static int do_ishtp_entry(const char *filename, void *symval, char *alias)
 {
-	DEF_FIELD(symval, ishtp_device_id, guid);
+	DEF_FIELD_ADDR(symval, ishtp_device_id, guid);
 
 	strcpy(alias, ISHTP_MODULE_PREFIX "{");
-	add_guid(alias, guid);
+	add_guid(alias, *guid);
 	strcat(alias, "}");
 
 	return 1;
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index ea72af229d2b..973b5e5ae2dd 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -22,7 +22,6 @@
 #include <errno.h>
 #include "modpost.h"
 #include "../../include/linux/license.h"
-#include "../../include/linux/module_symbol.h"
 
 static bool module_enabled;
 /* Are we using CONFIG_MODVERSIONS? */
@@ -577,11 +576,14 @@ static int parse_elf(struct elf_info *info, const char *filename)
 			*p = TO_NATIVE(*p);
 	}
 
+	symsearch_init(info);
+
 	return 1;
 }
 
 static void parse_elf_finish(struct elf_info *info)
 {
+	symsearch_finish(info);
 	release_file(info->hdr, info->size);
 }
 
@@ -792,24 +794,16 @@ static void check_section(const char *modname, struct elf_info *elf,
 #define ALL_INIT_DATA_SECTIONS \
 	".init.setup", ".init.rodata", ".meminit.rodata", \
 	".init.data", ".meminit.data"
-#define ALL_EXIT_DATA_SECTIONS \
-	".exit.data", ".memexit.data"
-
-#define ALL_INIT_TEXT_SECTIONS \
-	".init.text", ".meminit.text"
-#define ALL_EXIT_TEXT_SECTIONS \
-	".exit.text", ".memexit.text"
 
 #define ALL_PCI_INIT_SECTIONS	\
 	".pci_fixup_early", ".pci_fixup_header", ".pci_fixup_final", \
 	".pci_fixup_enable", ".pci_fixup_resume", \
 	".pci_fixup_resume_early", ".pci_fixup_suspend"
 
-#define ALL_XXXINIT_SECTIONS MEM_INIT_SECTIONS
-#define ALL_XXXEXIT_SECTIONS MEM_EXIT_SECTIONS
+#define ALL_XXXINIT_SECTIONS ".meminit.*"
 
 #define ALL_INIT_SECTIONS INIT_SECTIONS, ALL_XXXINIT_SECTIONS
-#define ALL_EXIT_SECTIONS EXIT_SECTIONS, ALL_XXXEXIT_SECTIONS
+#define ALL_EXIT_SECTIONS ".exit.*"
 
 #define DATA_SECTIONS ".data", ".data.rel"
 #define TEXT_SECTIONS ".text", ".text.*", ".sched.text", \
@@ -819,20 +813,13 @@ static void check_section(const char *modname, struct elf_info *elf,
 		".coldtext", ".softirqentry.text"
 
 #define INIT_SECTIONS      ".init.*"
-#define MEM_INIT_SECTIONS  ".meminit.*"
 
-#define EXIT_SECTIONS      ".exit.*"
-#define MEM_EXIT_SECTIONS  ".memexit.*"
-
-#define ALL_TEXT_SECTIONS  ALL_INIT_TEXT_SECTIONS, ALL_EXIT_TEXT_SECTIONS, \
+#define ALL_TEXT_SECTIONS  ".init.text", ".meminit.text", ".exit.text", \
 		TEXT_SECTIONS, OTHER_TEXT_SECTIONS
 
 enum mismatch {
-	TEXT_TO_ANY_INIT,
-	DATA_TO_ANY_INIT,
-	TEXTDATA_TO_ANY_EXIT,
+	TEXTDATA_TO_ANY_INIT_EXIT,
 	XXXINIT_TO_SOME_INIT,
-	XXXEXIT_TO_SOME_EXIT,
 	ANY_INIT_TO_ANY_EXIT,
 	ANY_EXIT_TO_ANY_INIT,
 	EXTABLE_TO_NON_TEXT,
@@ -863,19 +850,9 @@ static const struct sectioncheck sectioncheck[] = {
  * normal code and data
  */
 {
-	.fromsec = { TEXT_SECTIONS, NULL },
-	.bad_tosec = { ALL_INIT_SECTIONS, NULL },
-	.mismatch = TEXT_TO_ANY_INIT,
-},
-{
-	.fromsec = { DATA_SECTIONS, NULL },
-	.bad_tosec = { ALL_XXXINIT_SECTIONS, INIT_SECTIONS, NULL },
-	.mismatch = DATA_TO_ANY_INIT,
-},
-{
 	.fromsec = { TEXT_SECTIONS, DATA_SECTIONS, NULL },
-	.bad_tosec = { ALL_EXIT_SECTIONS, NULL },
-	.mismatch = TEXTDATA_TO_ANY_EXIT,
+	.bad_tosec = { ALL_INIT_SECTIONS, ALL_EXIT_SECTIONS, NULL },
+	.mismatch = TEXTDATA_TO_ANY_INIT_EXIT,
 },
 /* Do not reference init code/data from meminit code/data */
 {
@@ -883,12 +860,6 @@ static const struct sectioncheck sectioncheck[] = {
 	.bad_tosec = { INIT_SECTIONS, NULL },
 	.mismatch = XXXINIT_TO_SOME_INIT,
 },
-/* Do not reference exit code/data from memexit code/data */
-{
-	.fromsec = { ALL_XXXEXIT_SECTIONS, NULL },
-	.bad_tosec = { EXIT_SECTIONS, NULL },
-	.mismatch = XXXEXIT_TO_SOME_EXIT,
-},
 /* Do not use exit code/data from init code */
 {
 	.fromsec = { ALL_INIT_SECTIONS, NULL },
@@ -1006,19 +977,7 @@ static int secref_whitelist(const char *fromsec, const char *fromsym,
 	/* symbols in data sections that may refer to any init/exit sections */
 	if (match(fromsec, PATTERNS(DATA_SECTIONS)) &&
 	    match(tosec, PATTERNS(ALL_INIT_SECTIONS, ALL_EXIT_SECTIONS)) &&
-	    match(fromsym, PATTERNS("*_template", // scsi uses *_template a lot
-				    "*_timer", // arm uses ops structures named _timer a lot
-				    "*_sht", // scsi also used *_sht to some extent
-				    "*_ops",
-				    "*_probe",
-				    "*_probe_one",
-				    "*_console")))
-		return 0;
-
-	/* symbols in data sections that may refer to meminit sections */
-	if (match(fromsec, PATTERNS(DATA_SECTIONS)) &&
-	    match(tosec, PATTERNS(ALL_XXXINIT_SECTIONS, ALL_XXXEXIT_SECTIONS)) &&
-	    match(fromsym, PATTERNS("*driver")))
+	    match(fromsym, PATTERNS("*_ops", "*_probe", "*_console")))
 		return 0;
 
 	/*
@@ -1028,7 +987,7 @@ static int secref_whitelist(const char *fromsec, const char *fromsym,
 	 */
 	if (!extra_warn &&
 	    match(fromsec, PATTERNS(DATA_SECTIONS)) &&
-	    match(tosec, PATTERNS(EXIT_SECTIONS)) &&
+	    match(tosec, PATTERNS(ALL_EXIT_SECTIONS)) &&
 	    match(fromsym, PATTERNS("*driver")))
 		return 0;
 
@@ -1050,71 +1009,10 @@ static int secref_whitelist(const char *fromsec, const char *fromsym,
 	return 1;
 }
 
-/*
- * If there's no name there, ignore it; likewise, ignore it if it's
- * one of the magic symbols emitted used by current tools.
- *
- * Otherwise if find_symbols_between() returns those symbols, they'll
- * fail the whitelist tests and cause lots of false alarms ... fixable
- * only by merging __exit and __init sections into __text, bloating
- * the kernel (which is especially evil on embedded platforms).
- */
-static inline bool is_valid_name(struct elf_info *elf, Elf_Sym *sym)
-{
-	const char *name = elf->strtab + sym->st_name;
-
-	if (!name || !strlen(name))
-		return false;
-	return !is_mapping_symbol(name);
-}
-
-/* Look up the nearest symbol based on the section and the address */
-static Elf_Sym *find_nearest_sym(struct elf_info *elf, Elf_Addr addr,
-				 unsigned int secndx, bool allow_negative,
-				 Elf_Addr min_distance)
-{
-	Elf_Sym *sym;
-	Elf_Sym *near = NULL;
-	Elf_Addr sym_addr, distance;
-	bool is_arm = (elf->hdr->e_machine == EM_ARM);
-
-	for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {
-		if (get_secindex(elf, sym) != secndx)
-			continue;
-		if (!is_valid_name(elf, sym))
-			continue;
-
-		sym_addr = sym->st_value;
-
-		/*
-		 * For ARM Thumb instruction, the bit 0 of st_value is set
-		 * if the symbol is STT_FUNC type. Mask it to get the address.
-		 */
-		if (is_arm && ELF_ST_TYPE(sym->st_info) == STT_FUNC)
-			 sym_addr &= ~1;
-
-		if (addr >= sym_addr)
-			distance = addr - sym_addr;
-		else if (allow_negative)
-			distance = sym_addr - addr;
-		else
-			continue;
-
-		if (distance <= min_distance) {
-			min_distance = distance;
-			near = sym;
-		}
-
-		if (min_distance == 0)
-			break;
-	}
-	return near;
-}
-
 static Elf_Sym *find_fromsym(struct elf_info *elf, Elf_Addr addr,
 			     unsigned int secndx)
 {
-	return find_nearest_sym(elf, addr, secndx, false, ~0);
+	return symsearch_find_nearest(elf, addr, secndx, false, ~0);
 }
 
 static Elf_Sym *find_tosym(struct elf_info *elf, Elf_Addr addr, Elf_Sym *sym)
@@ -1127,7 +1025,8 @@ static Elf_Sym *find_tosym(struct elf_info *elf, Elf_Addr addr, Elf_Sym *sym)
 	 * Strive to find a better symbol name, but the resulting name may not
 	 * match the symbol referenced in the original code.
 	 */
-	return find_nearest_sym(elf, addr, get_secindex(elf, sym), true, 20);
+	return symsearch_find_nearest(elf, addr, get_secindex(elf, sym),
+				      true, 20);
 }
 
 static bool is_executable_section(struct elf_info *elf, unsigned int secndx)
@@ -1248,10 +1147,10 @@ static void check_export_symbol(struct module *mod, struct elf_info *elf,
 	    ELF_ST_TYPE(sym->st_info) == STT_LOPROC)
 		s->is_func = true;
 
-	if (match(secname, PATTERNS(INIT_SECTIONS)))
+	if (match(secname, PATTERNS(ALL_INIT_SECTIONS)))
 		warn("%s: %s: EXPORT_SYMBOL used for init symbol. Remove __init or EXPORT_SYMBOL.\n",
 		     mod->name, name);
-	else if (match(secname, PATTERNS(EXIT_SECTIONS)))
+	else if (match(secname, PATTERNS(ALL_EXIT_SECTIONS)))
 		warn("%s: %s: EXPORT_SYMBOL used for exit symbol. Remove __exit or EXPORT_SYMBOL.\n",
 		     mod->name, name);
 }
@@ -1468,32 +1367,20 @@ static void get_rel_type_and_sym(struct elf_info *elf, uint64_t r_info,
 		return;
 	}
 
-	if (is_64bit) {
-		Elf64_Xword r_info64 = r_info;
-
-		r_info = TO_NATIVE(r_info64);
-	} else {
-		Elf32_Word r_info32 = r_info;
-
-		r_info = TO_NATIVE(r_info32);
-	}
+	if (is_64bit)
+		r_info = TO_NATIVE((Elf64_Xword)r_info);
+	else
+		r_info = TO_NATIVE((Elf32_Word)r_info);
 
 	*r_type = ELF_R_TYPE(r_info);
 	*r_sym = ELF_R_SYM(r_info);
 }
 
 static void section_rela(struct module *mod, struct elf_info *elf,
-			 Elf_Shdr *sechdr)
+			 unsigned int fsecndx, const char *fromsec,
+			 const Elf_Rela *start, const Elf_Rela *stop)
 {
-	Elf_Rela *rela;
-	unsigned int fsecndx = sechdr->sh_info;
-	const char *fromsec = sec_name(elf, fsecndx);
-	Elf_Rela *start = (void *)elf->hdr + sechdr->sh_offset;
-	Elf_Rela *stop  = (void *)start + sechdr->sh_size;
-
-	/* if from section (name) is know good then skip it */
-	if (match(fromsec, section_white_list))
-		return;
+	const Elf_Rela *rela;
 
 	for (rela = start; rela < stop; rela++) {
 		Elf_Addr taddr, r_offset;
@@ -1523,17 +1410,10 @@ static void section_rela(struct module *mod, struct elf_info *elf,
 }
 
 static void section_rel(struct module *mod, struct elf_info *elf,
-			Elf_Shdr *sechdr)
+			unsigned int fsecndx, const char *fromsec,
+			const Elf_Rel *start, const Elf_Rel *stop)
 {
-	Elf_Rel *rel;
-	unsigned int fsecndx = sechdr->sh_info;
-	const char *fromsec = sec_name(elf, fsecndx);
-	Elf_Rel *start = (void *)elf->hdr + sechdr->sh_offset;
-	Elf_Rel *stop  = (void *)start + sechdr->sh_size;
-
-	/* if from section (name) is know good then skip it */
-	if (match(fromsec, section_white_list))
-		return;
+	const Elf_Rel *rel;
 
 	for (rel = start; rel < stop; rel++) {
 		Elf_Sym *tsym;
@@ -1581,16 +1461,33 @@ static void section_rel(struct module *mod, struct elf_info *elf,
 static void check_sec_ref(struct module *mod, struct elf_info *elf)
 {
 	int i;
-	Elf_Shdr *sechdrs = elf->sechdrs;
 
 	/* Walk through all sections */
 	for (i = 0; i < elf->num_sections; i++) {
-		check_section(mod->name, elf, &elf->sechdrs[i]);
+		Elf_Shdr *sechdr = &elf->sechdrs[i];
+
+		check_section(mod->name, elf, sechdr);
 		/* We want to process only relocation sections and not .init */
-		if (sechdrs[i].sh_type == SHT_RELA)
-			section_rela(mod, elf, &elf->sechdrs[i]);
-		else if (sechdrs[i].sh_type == SHT_REL)
-			section_rel(mod, elf, &elf->sechdrs[i]);
+		if (sechdr->sh_type == SHT_REL || sechdr->sh_type == SHT_RELA) {
+			/* section to which the relocation applies */
+			unsigned int secndx = sechdr->sh_info;
+			const char *secname = sec_name(elf, secndx);
+			const void *start, *stop;
+
+			/* If the section is known good, skip it */
+			if (match(secname, section_white_list))
+				continue;
+
+			start = sym_get_data_by_offset(elf, i, 0);
+			stop = start + sechdr->sh_size;
+
+			if (sechdr->sh_type == SHT_RELA)
+				section_rela(mod, elf, secndx, secname,
+					     start, stop);
+			else
+				section_rel(mod, elf, secndx, secname,
+					    start, stop);
+		}
 	}
 }
 
diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
index 5f94c2c9f2d9..69baf014da4f 100644
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -1,4 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+#include <byteswap.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -10,6 +11,7 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <elf.h>
+#include "../../include/linux/module_symbol.h"
 
 #include "list.h"
 #include "elfconfig.h"
@@ -50,21 +52,19 @@
 #define ELF_R_TYPE  ELF64_R_TYPE
 #endif
 
-#if KERNEL_ELFDATA != HOST_ELFDATA
+#define bswap(x) \
+({ \
+	_Static_assert(sizeof(x) == 1 || sizeof(x) == 2 || \
+		       sizeof(x) == 4 || sizeof(x) == 8, "bug"); \
+	(typeof(x))(sizeof(x) == 2 ? bswap_16(x) : \
+		    sizeof(x) == 4 ? bswap_32(x) : \
+		    sizeof(x) == 8 ? bswap_64(x) : \
+		    x); \
+})
 
-static inline void __endian(const void *src, void *dest, unsigned int size)
-{
-	unsigned int i;
-	for (i = 0; i < size; i++)
-		((unsigned char*)dest)[i] = ((unsigned char*)src)[size - i-1];
-}
+#if KERNEL_ELFDATA != HOST_ELFDATA
 
-#define TO_NATIVE(x)						\
-({								\
-	typeof(x) __x;						\
-	__endian(&(x), &(__x), sizeof(__x));			\
-	__x;							\
-})
+#define TO_NATIVE(x) (bswap(x))
 
 #else /* endianness matches */
 
@@ -128,6 +128,8 @@ struct elf_info {
 	 * take shndx from symtab_shndx_start[N] instead */
 	Elf32_Word   *symtab_shndx_start;
 	Elf32_Word   *symtab_shndx_stop;
+
+	struct symsearch *symsearch;
 };
 
 /* Accessor for sym->st_shndx, hides ugliness of "64k sections" */
@@ -154,6 +156,28 @@ static inline unsigned int get_secindex(const struct elf_info *info,
 	return index;
 }
 
+/*
+ * If there's no name there, ignore it; likewise, ignore it if it's
+ * one of the magic symbols emitted used by current tools.
+ *
+ * Internal symbols created by tools should be ignored by modpost.
+ */
+static inline bool is_valid_name(struct elf_info *elf, Elf_Sym *sym)
+{
+	const char *name = elf->strtab + sym->st_name;
+
+	if (!name || !strlen(name))
+		return false;
+	return !is_mapping_symbol(name);
+}
+
+/* symsearch.c */
+void symsearch_init(struct elf_info *elf);
+void symsearch_finish(struct elf_info *elf);
+Elf_Sym *symsearch_find_nearest(struct elf_info *elf, Elf_Addr addr,
+				unsigned int secndx, bool allow_negative,
+				Elf_Addr min_distance);
+
 /* file2alias.c */
 void handle_moddevtable(struct module *mod, struct elf_info *info,
 			Elf_Sym *sym, const char *symname);
diff --git a/scripts/mod/symsearch.c b/scripts/mod/symsearch.c
new file mode 100644
index 000000000000..aa4ed51f9960
--- /dev/null
+++ b/scripts/mod/symsearch.c
@@ -0,0 +1,199 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Helper functions for finding the symbol in an ELF which is "nearest"
+ * to a given address.
+ */
+
+#include "modpost.h"
+
+struct syminfo {
+	unsigned int symbol_index;
+	unsigned int section_index;
+	Elf_Addr addr;
+};
+
+/*
+ * Container used to hold an entire binary search table.
+ * Entries in table are ascending, sorted first by section_index,
+ * then by addr, and last by symbol_index.  The sorting by
+ * symbol_index is used to ensure predictable behavior when
+ * multiple symbols are present with the same address; all
+ * symbols past the first are effectively ignored, by eliding
+ * them in symsearch_fixup().
+ */
+struct symsearch {
+	unsigned int table_size;
+	struct syminfo table[];
+};
+
+static int syminfo_compare(const void *s1, const void *s2)
+{
+	const struct syminfo *sym1 = s1;
+	const struct syminfo *sym2 = s2;
+
+	if (sym1->section_index > sym2->section_index)
+		return 1;
+	if (sym1->section_index < sym2->section_index)
+		return -1;
+	if (sym1->addr > sym2->addr)
+		return 1;
+	if (sym1->addr < sym2->addr)
+		return -1;
+	if (sym1->symbol_index > sym2->symbol_index)
+		return 1;
+	if (sym1->symbol_index < sym2->symbol_index)
+		return -1;
+	return 0;
+}
+
+static unsigned int symbol_count(struct elf_info *elf)
+{
+	unsigned int result = 0;
+
+	for (Elf_Sym *sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {
+		if (is_valid_name(elf, sym))
+			result++;
+	}
+	return result;
+}
+
+/*
+ * Populate the search array that we just allocated.
+ * Be slightly paranoid here.  The ELF file is mmap'd and could
+ * conceivably change between symbol_count() and symsearch_populate().
+ * If we notice any difference, bail out rather than potentially
+ * propagating errors or crashing.
+ */
+static void symsearch_populate(struct elf_info *elf,
+			       struct syminfo *table,
+			       unsigned int table_size)
+{
+	bool is_arm = (elf->hdr->e_machine == EM_ARM);
+
+	for (Elf_Sym *sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {
+		if (is_valid_name(elf, sym)) {
+			if (table_size-- == 0)
+				fatal("%s: size mismatch\n", __func__);
+			table->symbol_index = sym - elf->symtab_start;
+			table->section_index = get_secindex(elf, sym);
+			table->addr = sym->st_value;
+
+			/*
+			 * For ARM Thumb instruction, the bit 0 of st_value is
+			 * set if the symbol is STT_FUNC type. Mask it to get
+			 * the address.
+			 */
+			if (is_arm && ELF_ST_TYPE(sym->st_info) == STT_FUNC)
+				table->addr &= ~1;
+
+			table++;
+		}
+	}
+
+	if (table_size != 0)
+		fatal("%s: size mismatch\n", __func__);
+}
+
+/*
+ * Do any fixups on the table after sorting.
+ * For now, this just finds adjacent entries which have
+ * the same section_index and addr, and it propagates
+ * the first symbol_index over the subsequent entries,
+ * so that only one symbol_index is seen for any given
+ * section_index and addr.  This ensures that whether
+ * we're looking at an address from "above" or "below"
+ * that we see the same symbol_index.
+ * This does leave some duplicate entries in the table;
+ * in practice, these are a small fraction of the
+ * total number of entries, and they are harmless to
+ * the binary search algorithm other than a few occasional
+ * unnecessary comparisons.
+ */
+static void symsearch_fixup(struct syminfo *table, unsigned int table_size)
+{
+	/* Don't look at index 0, it will never change. */
+	for (unsigned int i = 1; i < table_size; i++) {
+		if (table[i].addr == table[i - 1].addr &&
+		    table[i].section_index == table[i - 1].section_index) {
+			table[i].symbol_index = table[i - 1].symbol_index;
+		}
+	}
+}
+
+void symsearch_init(struct elf_info *elf)
+{
+	unsigned int table_size = symbol_count(elf);
+
+	elf->symsearch = NOFAIL(malloc(sizeof(struct symsearch) +
+				       sizeof(struct syminfo) * table_size));
+	elf->symsearch->table_size = table_size;
+
+	symsearch_populate(elf, elf->symsearch->table, table_size);
+	qsort(elf->symsearch->table, table_size,
+	      sizeof(struct syminfo), syminfo_compare);
+
+	symsearch_fixup(elf->symsearch->table, table_size);
+}
+
+void symsearch_finish(struct elf_info *elf)
+{
+	free(elf->symsearch);
+	elf->symsearch = NULL;
+}
+
+/*
+ * Find the syminfo which is in secndx and "nearest" to addr.
+ * allow_negative: allow returning a symbol whose address is > addr.
+ * min_distance: ignore symbols which are further away than this.
+ *
+ * Returns a pointer into the symbol table for success.
+ * Returns NULL if no legal symbol is found within the requested range.
+ */
+Elf_Sym *symsearch_find_nearest(struct elf_info *elf, Elf_Addr addr,
+				unsigned int secndx, bool allow_negative,
+				Elf_Addr min_distance)
+{
+	unsigned int hi = elf->symsearch->table_size;
+	unsigned int lo = 0;
+	struct syminfo *table = elf->symsearch->table;
+	struct syminfo target;
+
+	target.addr = addr;
+	target.section_index = secndx;
+	target.symbol_index = ~0;  /* compares greater than any actual index */
+	while (hi > lo) {
+		unsigned int mid = lo + (hi - lo) / 2;  /* Avoids overflow */
+
+		if (syminfo_compare(&table[mid], &target) > 0)
+			hi = mid;
+		else
+			lo = mid + 1;
+	}
+
+	/*
+	 * table[hi], if it exists, is the first entry in the array which
+	 * lies beyond target.  table[hi - 1], if it exists, is the last
+	 * entry in the array which comes before target, including the
+	 * case where it perfectly matches the section and the address.
+	 *
+	 * Note -- if the address we're looking up falls perfectly
+	 * in the middle of two symbols, this is written to always
+	 * prefer the symbol with the lower address.
+	 */
+	Elf_Sym *result = NULL;
+
+	if (allow_negative &&
+	    hi < elf->symsearch->table_size &&
+	    table[hi].section_index == secndx &&
+	    table[hi].addr - addr <= min_distance) {
+		min_distance = table[hi].addr - addr;
+		result = &elf->symtab_start[table[hi].symbol_index];
+	}
+	if (hi > 0 &&
+	    table[hi - 1].section_index == secndx &&
+	    addr - table[hi - 1].addr <= min_distance) {
+		result = &elf->symtab_start[table[hi - 1].symbol_index];
+	}
+	return result;
+}
diff --git a/scripts/package/mkspec b/scripts/package/mkspec
index d41608efb747..ce201bfa8377 100755
--- a/scripts/package/mkspec
+++ b/scripts/package/mkspec
@@ -9,6 +9,12 @@
 #	Patched for non-x86 by Opencon (L) 2002 <opencon@rio.skydome.net>
 #
 
+output=$1
+
+mkdir -p "$(dirname "${output}")"
+
+exec >"${output}"
+
 if grep -q CONFIG_MODULES=y include/config/auto.conf; then
 echo '%define with_devel %{?_without_devel: 0} %{?!_without_devel: 1}'
 else
diff --git a/scripts/pahole-flags.sh b/scripts/pahole-flags.sh
deleted file mode 100755
index 728d55190d97..000000000000
--- a/scripts/pahole-flags.sh
+++ /dev/null
@@ -1,30 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-
-extra_paholeopt=
-
-if ! [ -x "$(command -v ${PAHOLE})" ]; then
-	exit 0
-fi
-
-pahole_ver=$($(dirname $0)/pahole-version.sh ${PAHOLE})
-
-if [ "${pahole_ver}" -ge "118" ] && [ "${pahole_ver}" -le "121" ]; then
-	# pahole 1.18 through 1.21 can't handle zero-sized per-CPU vars
-	extra_paholeopt="${extra_paholeopt} --skip_encoding_btf_vars"
-fi
-if [ "${pahole_ver}" -ge "121" ]; then
-	extra_paholeopt="${extra_paholeopt} --btf_gen_floats"
-fi
-if [ "${pahole_ver}" -ge "122" ]; then
-	extra_paholeopt="${extra_paholeopt} -j"
-fi
-if [ "${pahole_ver}" -ge "124" ]; then
-	# see PAHOLE_HAS_LANG_EXCLUDE
-	extra_paholeopt="${extra_paholeopt} --lang_exclude=rust"
-fi
-if [ "${pahole_ver}" -ge "125" ]; then
-	extra_paholeopt="${extra_paholeopt} --skip_encoding_btf_inconsistent_proto --btf_gen_optimized"
-fi
-
-echo ${extra_paholeopt}
diff --git a/scripts/remove-stale-files b/scripts/remove-stale-files
index 8b1a636f8543..385610fe3936 100755
--- a/scripts/remove-stale-files
+++ b/scripts/remove-stale-files
@@ -38,4 +38,4 @@ rm -rf include/ksym
 
 find . -name '*.usyms' | xargs rm -f
 
-rm -f binkernel.spec
+rm -f *.spec