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authorLinus Torvalds <torvalds@linux-foundation.org>2019-07-12 16:03:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-12 16:03:16 -0700
commit39ceda5ce1b002e30563fcb8ad1bb5ac8e4d59ee (patch)
tree18751f981a3a540379b9f4b01292e1b4f401aa38 /scripts
parent5f26f1143678d0fed8115afdcc0de99ee7cc9675 (diff)
parentd4a74bbfee03acf7bbddc77b9c9236462c744fc7 (diff)
downloadlinux-39ceda5ce1b002e30563fcb8ad1bb5ac8e4d59ee.tar.bz2
Merge tag 'kbuild-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada: - remove headers_{install,check}_all targets - remove unreasonable 'depends on !UML' from CONFIG_SAMPLES - re-implement 'make headers_install' more cleanly - add new header-test-y syntax to compile-test headers - compile-test exported headers to ensure they are compilable in user-space - compile-test headers under include/ to ensure they are self-contained - remove -Waggregate-return, -Wno-uninitialized, -Wno-unused-value flags - add -Werror=unknown-warning-option for Clang - add 128-bit built-in types support to genksyms - fix missed rebuild of modules.builtin - propagate 'No space left on device' error in fixdep to Make - allow Clang to use its integrated assembler - improve some coccinelle scripts - add a new flag KBUILD_ABS_SRCTREE to request Kbuild to use absolute path for $(srctree). - do not ignore errors when compression utility is missing - misc cleanups * tag 'kbuild-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (49 commits) kbuild: use -- separater intead of $(filter-out ...) for cc-cross-prefix kbuild: Inform user to pass ARCH= for make mrproper kbuild: fix compression errors getting ignored kbuild: add a flag to force absolute path for srctree kbuild: replace KBUILD_SRCTREE with boolean building_out_of_srctree kbuild: remove src and obj from the top Makefile scripts/tags.sh: remove unused environment variables from comments scripts/tags.sh: drop SUBARCH support for ARM kbuild: compile-test kernel headers to ensure they are self-contained kheaders: include only headers into kheaders_data.tar.xz kheaders: remove meaningless -R option of 'ls' kbuild: support header-test-pattern-y kbuild: do not create wrappers for header-test-y kbuild: compile-test exported headers to ensure they are self-contained init/Kconfig: add CONFIG_CC_CAN_LINK kallsyms: exclude kasan local symbols on s390 kbuild: add more hints about SUBDIRS replacement coccinelle: api/stream_open: treat all wait_.*() calls as blocking coccinelle: put_device: Add a cast to an expression for an assignment coccinelle: put_device: Adjust a message construction ...
Diffstat (limited to 'scripts')
-rw-r--r--scripts/Kbuild.include28
-rw-r--r--scripts/Makefile5
-rw-r--r--scripts/Makefile.build11
-rw-r--r--scripts/Makefile.extrawarn3
-rw-r--r--scripts/Makefile.headersinst134
-rw-r--r--scripts/Makefile.host2
-rw-r--r--scripts/Makefile.lib26
-rw-r--r--scripts/Makefile.modbuiltin2
-rw-r--r--scripts/basic/fixdep.c51
-rw-r--r--scripts/coccinelle/api/kstrdup.cocci8
-rw-r--r--scripts/coccinelle/api/stream_open.cocci8
-rw-r--r--scripts/coccinelle/free/put_device.cocci11
-rw-r--r--scripts/gdb/linux/Makefile2
-rw-r--r--scripts/genksyms/keywords.c4
-rw-r--r--scripts/genksyms/parse.y2
-rwxr-xr-xscripts/headers.sh29
-rwxr-xr-xscripts/headers_install.sh48
-rw-r--r--scripts/kallsyms.c3
-rwxr-xr-xscripts/package/builddeb2
-rwxr-xr-xscripts/package/mkspec2
-rwxr-xr-xscripts/tags.sh43
21 files changed, 191 insertions, 233 deletions
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index ee58cde8ee3b..73e80b917f12 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -79,8 +79,8 @@ endef
# would try to directly execute the shell builtin 'command'. This workaround
# should be kept for a long time since this issue was fixed only after the
# GNU Make 4.2.1 release.
-cc-cross-prefix = $(firstword $(foreach c, $(filter-out -%, $(1)), \
- $(if $(shell command -v $(c)gcc 2>/dev/null), $(c))))
+cc-cross-prefix = $(firstword $(foreach c, $(1), \
+ $(if $(shell command -v -- $(c)gcc 2>/dev/null), $(c))))
# output directory for tests below
TMPOUT := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/)
@@ -187,12 +187,6 @@ dtbinst := -f $(srctree)/scripts/Makefile.dtbinst obj
# $(Q)$(MAKE) $(clean)=dir
clean := -f $(srctree)/scripts/Makefile.clean obj
-###
-# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.headersinst obj=
-# Usage:
-# $(Q)$(MAKE) $(hdr-inst)=dir
-hdr-inst := -f $(srctree)/scripts/Makefile.headersinst obj
-
# echo command.
# Short version is used, if $(quiet) equals `quiet_', otherwise full one.
echo-cmd = $(if $($(quiet)cmd_$(1)),\
@@ -213,12 +207,12 @@ objectify = $(foreach o,$(1),$(if $(filter /%,$(o)),$(o),$(obj)/$(o)))
# See Documentation/kbuild/makefiles.rst for more info
ifneq ($(KBUILD_NOCMDDEP),1)
-# Check if both arguments are the same including their order. Result is empty
+# Check if both commands are the same including their order. Result is empty
# string if equal. User may override this check using make KBUILD_NOCMDDEP=1
-arg-check = $(filter-out $(subst $(space),$(space_escape),$(strip $(cmd_$@))), \
+cmd-check = $(filter-out $(subst $(space),$(space_escape),$(strip $(cmd_$@))), \
$(subst $(space),$(space_escape),$(strip $(cmd_$1))))
else
-arg-check = $(if $(strip $(cmd_$@)),,1)
+cmd-check = $(if $(strip $(cmd_$@)),,1)
endif
# Replace >$< with >$$< to preserve $ when reloading the .cmd file
@@ -231,15 +225,15 @@ make-cmd = $(call escsq,$(subst $(pound),$$(pound),$(subst $$,$$$$,$(cmd_$(1))))
# Find any prerequisites that is newer than target or that does not exist.
# PHONY targets skipped in both cases.
-any-prereq = $(filter-out $(PHONY),$?) $(filter-out $(PHONY) $(wildcard $^),$^)
+any-prereq = $(filter-out $(PHONY),$?)$(filter-out $(PHONY) $(wildcard $^),$^)
# Execute command if command has changed or prerequisite(s) are updated.
-if_changed = $(if $(strip $(any-prereq) $(arg-check)), \
+if_changed = $(if $(any-prereq)$(cmd-check), \
$(cmd); \
printf '%s\n' 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd, @:)
# Execute the command and also postprocess generated .d dependencies file.
-if_changed_dep = $(if $(strip $(any-prereq) $(arg-check)),$(cmd_and_fixdep),@:)
+if_changed_dep = $(if $(any-prereq)$(cmd-check),$(cmd_and_fixdep),@:)
cmd_and_fixdep = \
$(cmd); \
@@ -249,7 +243,7 @@ cmd_and_fixdep = \
# Usage: $(call if_changed_rule,foo)
# Will check if $(cmd_foo) or any of the prerequisites changed,
# and if so will execute $(rule_foo).
-if_changed_rule = $(if $(strip $(any-prereq) $(arg-check)),$(rule_$(1)),@:)
+if_changed_rule = $(if $(any-prereq)$(cmd-check),$(rule_$(1)),@:)
###
# why - tell why a target got built
@@ -274,8 +268,8 @@ ifeq ($(KBUILD_VERBOSE),2)
why = \
$(if $(filter $@, $(PHONY)),- due to target is PHONY, \
$(if $(wildcard $@), \
- $(if $(strip $(any-prereq)),- due to: $(any-prereq), \
- $(if $(arg-check), \
+ $(if $(any-prereq),- due to: $(any-prereq), \
+ $(if $(cmd-check), \
$(if $(cmd_$@),- due to command line change, \
$(if $(filter $@, $(targets)), \
- due to missing .cmd file, \
diff --git a/scripts/Makefile b/scripts/Makefile
index 9d442ee050bd..16bcb8087899 100644
--- a/scripts/Makefile
+++ b/scripts/Makefile
@@ -31,11 +31,6 @@ always := $(hostprogs-y) $(hostprogs-m)
# The following hostprogs-y programs are only build on demand
hostprogs-y += unifdef
-# These targets are used internally to avoid "is up to date" messages
-PHONY += build_unifdef
-build_unifdef: $(obj)/unifdef
- @:
-
subdir-$(CONFIG_GCC_PLUGINS) += gcc-plugins
subdir-$(CONFIG_MODVERSIONS) += genksyms
subdir-$(CONFIG_SECURITY_SELINUX) += selinux
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index ae9cf740633e..be38198d98b2 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -294,6 +294,15 @@ quiet_cmd_cc_lst_c = MKLST $@
$(obj)/%.lst: $(src)/%.c FORCE
$(call if_changed_dep,cc_lst_c)
+# header test (header-test-y target)
+# ---------------------------------------------------------------------------
+
+quiet_cmd_cc_s_h = CC $@
+ cmd_cc_s_h = $(CC) $(c_flags) -S -o $@ -x c /dev/null -include $<
+
+$(obj)/%.h.s: $(src)/%.h FORCE
+ $(call if_changed_dep,cc_s_h)
+
# Compile assembler sources (.S)
# ---------------------------------------------------------------------------
@@ -504,7 +513,7 @@ existing-targets := $(wildcard $(sort $(targets)))
-include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)
-ifneq ($(srctree),.)
+ifdef building_out_of_srctree
# Create directories for object files if they do not exist
obj-dirs := $(sort $(obj) $(patsubst %/,%, $(dir $(targets))))
# If targets exist, their directories apparently exist. Skip mkdir.
diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index 3ab8d1a303cd..a74ce2e3c33e 100644
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -34,7 +34,6 @@ warning-1 += $(call cc-option, -Wstringop-truncation)
warning-1 += -Wno-missing-field-initializers
warning-1 += -Wno-sign-compare
-warning-2 := -Waggregate-return
warning-2 += -Wcast-align
warning-2 += -Wdisabled-optimization
warning-2 += -Wnested-externs
@@ -68,10 +67,8 @@ else
ifdef CONFIG_CC_IS_CLANG
KBUILD_CFLAGS += -Wno-initializer-overrides
-KBUILD_CFLAGS += -Wno-unused-value
KBUILD_CFLAGS += -Wno-format
KBUILD_CFLAGS += -Wno-sign-compare
KBUILD_CFLAGS += -Wno-format-zero-length
-KBUILD_CFLAGS += -Wno-uninitialized
endif
endif
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index 3d1ebaabd1b6..1b405a7ed14f 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -14,109 +14,89 @@ __headers:
include scripts/Kbuild.include
-srcdir := $(srctree)/$(obj)
+src := $(srctree)/$(obj)
+gen := $(objtree)/$(subst include/,include/generated/,$(obj))
+dst := usr/include
-# When make is run under a fakechroot environment, the function
-# $(wildcard $(srcdir)/*/.) doesn't only return directories, but also regular
-# files. So, we are using a combination of sort/dir/wildcard which works
-# with fakechroot.
-subdirs := $(patsubst $(srcdir)/%/,%,\
- $(filter-out $(srcdir)/,\
- $(sort $(dir $(wildcard $(srcdir)/*/)))))
+-include $(src)/Kbuild
-# Recursion
-__headers: $(subdirs)
+# $(filter %/, ...) is a workaround for GNU Make <= 4.2.1, where
+# $(wildcard $(src)/*/) contains not only directories but also regular files.
+src-subdirs := $(patsubst $(src)/%/,%,$(filter %/, $(wildcard $(src)/*/)))
+gen-subdirs := $(patsubst $(gen)/%/,%,$(filter %/, $(wildcard $(gen)/*/)))
+all-subdirs := $(sort $(src-subdirs) $(gen-subdirs))
-PHONY += $(subdirs)
-$(subdirs):
- $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(dst)/$@
+src-headers := $(if $(src-subdirs), $(shell cd $(src) && find $(src-subdirs) -name '*.h'))
+src-headers := $(filter-out $(no-export-headers), $(src-headers))
+gen-headers := $(if $(gen-subdirs), $(shell cd $(gen) && find $(gen-subdirs) -name '*.h'))
+gen-headers := $(filter-out $(no-export-headers), $(gen-headers))
-# Skip header install/check for include/uapi and arch/$(SRCARCH)/include/uapi.
-# We have only sub-directories there.
-skip-inst := $(if $(filter %/uapi,$(obj)),1)
+# If the same header is exported from source and generated directories,
+# the former takes precedence, but this should be warned.
+duplicated := $(filter $(gen-headers), $(src-headers))
+$(if $(duplicated), $(warning duplicated header export: $(duplicated)))
-ifeq ($(skip-inst),)
+gen-headers := $(filter-out $(duplicated), $(gen-headers))
-# Kbuild file is optional
-kbuild-file := $(srctree)/$(obj)/Kbuild
--include $(kbuild-file)
+# Add dst path prefix
+all-subdirs := $(addprefix $(dst)/, $(all-subdirs))
+src-headers := $(addprefix $(dst)/, $(src-headers))
+gen-headers := $(addprefix $(dst)/, $(gen-headers))
+all-headers := $(src-headers) $(gen-headers)
-installdir := $(INSTALL_HDR_PATH)/$(dst)
-gendir := $(objtree)/$(subst include/,include/generated/,$(obj))
-header-files := $(notdir $(wildcard $(srcdir)/*.h))
-header-files := $(filter-out $(no-export-headers), $(header-files))
-genhdr-files := $(notdir $(wildcard $(gendir)/*.h))
-genhdr-files := $(filter-out $(header-files), $(genhdr-files))
+# Work out what needs to be removed
+old-subdirs := $(wildcard $(all-subdirs))
+old-headers := $(if $(old-subdirs),$(shell find $(old-subdirs) -name '*.h'))
+unwanted := $(filter-out $(all-headers), $(old-headers))
-# files used to track state of install/check
-install-file := $(installdir)/.install
-check-file := $(installdir)/.check
+# Create directories
+existing-dirs := $(sort $(dir $(old-headers)))
+wanted-dirs := $(sort $(dir $(all-headers)))
+new-dirs := $(filter-out $(existing-dirs), $(wanted-dirs))
+$(if $(new-dirs), $(shell mkdir -p $(new-dirs)))
-# all headers files for this dir
-all-files := $(header-files) $(genhdr-files)
-output-files := $(addprefix $(installdir)/, $(all-files))
+# Rules
-# Work out what needs to be removed
-oldheaders := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h))
-unwanted := $(filter-out $(all-files),$(oldheaders))
+ifndef HDRCHECK
-# Prefix unwanted with full paths to $(INSTALL_HDR_PATH)
-unwanted-file := $(addprefix $(installdir)/, $(unwanted))
+quiet_cmd_install = HDRINST $@
+ cmd_install = $(CONFIG_SHELL) $(srctree)/scripts/headers_install.sh $< $@
-printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@))
+$(src-headers): $(dst)/%.h: $(src)/%.h $(srctree)/scripts/headers_install.sh FORCE
+ $(call if_changed,install)
-quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
- file$(if $(word 2, $(all-files)),s))
- cmd_install = \
- $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(header-files); \
- $(CONFIG_SHELL) $< $(installdir) $(gendir) $(genhdr-files); \
- touch $@
+$(gen-headers): $(dst)/%.h: $(gen)/%.h $(srctree)/scripts/headers_install.sh FORCE
+ $(call if_changed,install)
quiet_cmd_remove = REMOVE $(unwanted)
- cmd_remove = rm -f $(unwanted-file)
-
-quiet_cmd_check = CHECK $(printdir) ($(words $(all-files)) files)
-# Headers list can be pretty long, xargs helps to avoid
-# the "Argument list too long" error.
- cmd_check = for f in $(all-files); do \
- echo "$(installdir)/$${f}"; done \
- | xargs \
- $(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \
- touch $@
+ cmd_remove = rm -f $(unwanted)
-ifndef HDRCHECK
-# Rules for installing headers
-__headers: $(install-file)
+__headers: $(all-headers)
+ifneq ($(unwanted),)
+ $(call cmd,remove)
+endif
@:
-targets += $(install-file)
-$(install-file): scripts/headers_install.sh \
- $(addprefix $(srcdir)/,$(header-files)) \
- $(addprefix $(gendir)/,$(genhdr-files)) FORCE
- $(if $(unwanted),$(call cmd,remove),)
- $(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@)))
- $(call if_changed,install)
+existing-headers := $(filter $(old-headers), $(all-headers))
+
+-include $(foreach f,$(existing-headers),$(dir $(f)).$(notdir $(f)).cmd)
else
-__headers: $(check-file)
- @:
-targets += $(check-file)
-$(check-file): scripts/headers_check.pl $(output-files) FORCE
- $(call if_changed,check)
+quiet_cmd_check = HDRCHK $<
+ cmd_check = $(PERL) $(srctree)/scripts/headers_check.pl $(dst) $(SRCARCH) $<; touch $@
-endif
+check-files := $(addsuffix .chk, $(all-headers))
-cmd_files := $(wildcard \
- $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd))
+$(check-files): $(dst)/%.chk : $(dst)/% $(srctree)/scripts/headers_check.pl
+ $(call cmd,check)
-ifneq ($(cmd_files),)
- include $(cmd_files)
-endif
+__headers: $(check-files)
+ @:
-endif # skip-inst
+endif
PHONY += FORCE
-FORCE: ;
+FORCE:
.PHONY: $(PHONY)
diff --git a/scripts/Makefile.host b/scripts/Makefile.host
index a316d368b697..2208ebbd8c4c 100644
--- a/scripts/Makefile.host
+++ b/scripts/Makefile.host
@@ -69,7 +69,7 @@ _hostcxx_flags = $(KBUILD_HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \
# $(objtree)/$(obj) for including generated headers from checkin source files
ifeq ($(KBUILD_EXTMOD),)
-ifneq ($(srctree),.)
+ifdef building_out_of_srctree
_hostc_flags += -I $(objtree)/$(obj)
_hostcxx_flags += -I $(objtree)/$(obj)
endif
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index f1f38c8cdc74..6cb3aa5cbc79 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -66,6 +66,20 @@ extra-y += $(patsubst %.dtb,%.dt.yaml, $(dtb-y))
extra-$(CONFIG_OF_ALL_DTBS) += $(patsubst %.dtb,%.dt.yaml, $(dtb-))
endif
+# Test self-contained headers
+
+# Wildcard searches in $(srctree)/$(src)/, but not in $(objtree)/$(obj)/.
+# Stale generated headers are often left over, so pattern matching should
+# be avoided. Please notice $(srctree)/$(src)/ and $(objtree)/$(obj) point
+# to the same location for in-tree building. So, header-test-pattern-y should
+# be used with care.
+header-test-y += $(filter-out $(header-test-), \
+ $(patsubst $(srctree)/$(src)/%, %, \
+ $(wildcard $(addprefix $(srctree)/$(src)/, \
+ $(header-test-pattern-y)))))
+
+extra-$(CONFIG_HEADER_TEST) += $(addsuffix .s, $(header-test-y))
+
# Add subdir path
extra-y := $(addprefix $(obj)/,$(extra-y))
@@ -140,7 +154,7 @@ endif
# $(srctree)/$(src) for including checkin headers from generated source files
# $(objtree)/$(obj) for including generated headers from checkin source files
ifeq ($(KBUILD_EXTMOD),)
-ifneq ($(srctree),.)
+ifdef building_out_of_srctree
_c_flags += -I $(srctree)/$(src) -I $(objtree)/$(obj)
_a_flags += -I $(srctree)/$(src) -I $(objtree)/$(obj)
_cpp_flags += -I $(srctree)/$(src) -I $(objtree)/$(obj)
@@ -331,19 +345,19 @@ printf "%08x\n" $$dec_size | \
)
quiet_cmd_bzip2 = BZIP2 $@
- cmd_bzip2 = { cat $(real-prereqs) | bzip2 -9 && $(size_append); } > $@
+ cmd_bzip2 = { cat $(real-prereqs) | bzip2 -9; $(size_append); } > $@
# Lzma
# ---------------------------------------------------------------------------
quiet_cmd_lzma = LZMA $@
- cmd_lzma = { cat $(real-prereqs) | lzma -9 && $(size_append); } > $@
+ cmd_lzma = { cat $(real-prereqs) | lzma -9; $(size_append); } > $@
quiet_cmd_lzo = LZO $@
- cmd_lzo = { cat $(real-prereqs) | lzop -9 && $(size_append); } > $@
+ cmd_lzo = { cat $(real-prereqs) | lzop -9; $(size_append); } > $@
quiet_cmd_lz4 = LZ4 $@
- cmd_lz4 = { cat $(real-prereqs) | lz4c -l -c1 stdin stdout && \
+ cmd_lz4 = { cat $(real-prereqs) | lz4c -l -c1 stdin stdout; \
$(size_append); } > $@
# U-Boot mkimage
@@ -386,7 +400,7 @@ quiet_cmd_uimage = UIMAGE $@
# big dictionary would increase the memory usage too much in the multi-call
# decompression mode. A BCJ filter isn't used either.
quiet_cmd_xzkern = XZKERN $@
- cmd_xzkern = { cat $(real-prereqs) | sh $(srctree)/scripts/xz_wrap.sh && \
+ cmd_xzkern = { cat $(real-prereqs) | sh $(srctree)/scripts/xz_wrap.sh; \
$(size_append); } > $@
quiet_cmd_xzmisc = XZMISC $@
diff --git a/scripts/Makefile.modbuiltin b/scripts/Makefile.modbuiltin
index ea90a90b41a0..50a9990760f3 100644
--- a/scripts/Makefile.modbuiltin
+++ b/scripts/Makefile.modbuiltin
@@ -15,7 +15,7 @@ include include/config/tristate.conf
include scripts/Kbuild.include
-ifneq ($(srctree),.)
+ifdef building_out_of_srctree
# Create output directory if not already present
_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
endif
diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
index facbd603adf6..9ba47b0a47b9 100644
--- a/scripts/basic/fixdep.c
+++ b/scripts/basic/fixdep.c
@@ -99,6 +99,7 @@
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
+#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
@@ -110,13 +111,43 @@ static void usage(void)
}
/*
+ * In the intended usage of this program, the stdout is redirected to .*.cmd
+ * files. The return value of printf() and putchar() must be checked to catch
+ * any error, e.g. "No space left on device".
+ */
+static void xprintf(const char *format, ...)
+{
+ va_list ap;
+ int ret;
+
+ va_start(ap, format);
+ ret = vprintf(format, ap);
+ if (ret < 0) {
+ perror("fixdep");
+ exit(1);
+ }
+ va_end(ap);
+}
+
+static void xputchar(int c)
+{
+ int ret;
+
+ ret = putchar(c);
+ if (ret == EOF) {
+ perror("fixdep");
+ exit(1);
+ }
+}
+
+/*
* Print out a dependency path from a symbol name
*/
static void print_dep(const char *m, int slen, const char *dir)
{
int c, prev_c = '/', i;
- printf(" $(wildcard %s/", dir);
+ xprintf(" $(wildcard %s/", dir);
for (i = 0; i < slen; i++) {
c = m[i];
if (c == '_')
@@ -124,10 +155,10 @@ static void print_dep(const char *m, int slen, const char *dir)
else
c = tolower(c);
if (c != '/' || prev_c != '/')
- putchar(c);
+ xputchar(c);
prev_c = c;
}
- printf(".h) \\\n");
+ xprintf(".h) \\\n");
}
struct item {
@@ -324,13 +355,13 @@ static void parse_dep_file(char *m, const char *target)
*/
if (!saw_any_target) {
saw_any_target = 1;
- printf("source_%s := %s\n\n",
- target, m);
- printf("deps_%s := \\\n", target);
+ xprintf("source_%s := %s\n\n",
+ target, m);
+ xprintf("deps_%s := \\\n", target);
}
is_first_dep = 0;
} else {
- printf(" %s \\\n", m);
+ xprintf(" %s \\\n", m);
}
buf = read_file(m);
@@ -353,8 +384,8 @@ static void parse_dep_file(char *m, const char *target)
exit(1);
}
- printf("\n%s: $(deps_%s)\n\n", target, target);
- printf("$(deps_%s):\n", target);
+ xprintf("\n%s: $(deps_%s)\n\n", target, target);
+ xprintf("$(deps_%s):\n", target);
}
int main(int argc, char *argv[])
@@ -369,7 +400,7 @@ int main(int argc, char *argv[])
target = argv[2];
cmdline = argv[3];
- printf("cmd_%s := %s\n\n", target, cmdline);
+ xprintf("cmd_%s := %s\n\n", target, cmdline);
buf = read_file(depfile);
parse_dep_file(buf, target);
diff --git a/scripts/coccinelle/api/kstrdup.cocci b/scripts/coccinelle/api/kstrdup.cocci
index 888bf43df07e..19f2645e6076 100644
--- a/scripts/coccinelle/api/kstrdup.cocci
+++ b/scripts/coccinelle/api/kstrdup.cocci
@@ -77,7 +77,7 @@ p1 << r1.p1;
p2 << r1.p2;
@@
-cocci.print_main("WARNING opportunity for kstrdep",p1)
+cocci.print_main("WARNING opportunity for kstrdup",p1)
cocci.print_secs("strcpy",p2)
@script:python depends on org@
@@ -85,7 +85,7 @@ p1 << r2.p1;
p2 << r2.p2;
@@
-cocci.print_main("WARNING opportunity for kstrdep",p1)
+cocci.print_main("WARNING opportunity for kstrdup",p1)
cocci.print_secs("memcpy",p2)
@script:python depends on report@
@@ -93,7 +93,7 @@ p1 << r1.p1;
p2 << r1.p2;
@@
-msg = "WARNING opportunity for kstrdep (strcpy on line %s)" % (p2[0].line)
+msg = "WARNING opportunity for kstrdup (strcpy on line %s)" % (p2[0].line)
coccilib.report.print_report(p1[0], msg)
@script:python depends on report@
@@ -101,5 +101,5 @@ p1 << r2.p1;
p2 << r2.p2;
@@
-msg = "WARNING opportunity for kstrdep (memcpy on line %s)" % (p2[0].line)
+msg = "WARNING opportunity for kstrdup (memcpy on line %s)" % (p2[0].line)
coccilib.report.print_report(p1[0], msg)
diff --git a/scripts/coccinelle/api/stream_open.cocci b/scripts/coccinelle/api/stream_open.cocci
index 350145da7669..12ce18fa6b74 100644
--- a/scripts/coccinelle/api/stream_open.cocci
+++ b/scripts/coccinelle/api/stream_open.cocci
@@ -35,11 +35,11 @@ type loff_t;
// a function that blocks
@ blocks @
identifier block_f;
-identifier wait_event =~ "^wait_event_.*";
+identifier wait =~ "^wait_.*";
@@
block_f(...) {
... when exists
- wait_event(...)
+ wait(...)
... when exists
}
@@ -49,12 +49,12 @@ identifier wait_event =~ "^wait_event_.*";
// XXX currently reader_blocks supports only direct and 1-level indirect cases.
@ reader_blocks_direct @
identifier stream_reader.readstream;
-identifier wait_event =~ "^wait_event_.*";
+identifier wait =~ "^wait_.*";
@@
readstream(...)
{
... when exists
- wait_event(...)
+ wait(...)
... when exists
}
diff --git a/scripts/coccinelle/free/put_device.cocci b/scripts/coccinelle/free/put_device.cocci
index c9f071b0a0ab..120921366e84 100644
--- a/scripts/coccinelle/free/put_device.cocci
+++ b/scripts/coccinelle/free/put_device.cocci
@@ -24,7 +24,7 @@ if (id == NULL || ...) { ... return ...; }
when != of_dev_put(id)
when != if (id) { ... put_device(&id->dev) ... }
when != e1 = (T)id
- when != e1 = &id->dev
+ when != e1 = (T)(&id->dev)
when != e1 = get_device(&id->dev)
when != e1 = (T1)platform_get_drvdata(id)
(
@@ -42,11 +42,10 @@ p1 << search.p1;
p2 << search.p2;
@@
-coccilib.report.print_report(p2[0], "ERROR: missing put_device; "
- + "call of_find_device_by_node on line "
- + p1[0].line
- + ", but without a corresponding object release "
- + "within this function.")
+coccilib.report.print_report(p2[0],
+ "ERROR: missing put_device; call of_find_device_by_node on line "
+ + p1[0].line
+ + ", but without a corresponding object release within this function.")
@script:python depends on org@
p1 << search.p1;
diff --git a/scripts/gdb/linux/Makefile b/scripts/gdb/linux/Makefile
index 9fd3d8ed731a..124755087510 100644
--- a/scripts/gdb/linux/Makefile
+++ b/scripts/gdb/linux/Makefile
@@ -1,6 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
-ifneq ($(srctree),.)
+ifdef building_out_of_srctree
symlinks := $(patsubst $(srctree)/$(src)/%,%,$(wildcard $(srctree)/$(src)/*.py))
diff --git a/scripts/genksyms/keywords.c b/scripts/genksyms/keywords.c
index e93336baaaed..c586d32dd2c3 100644
--- a/scripts/genksyms/keywords.c
+++ b/scripts/genksyms/keywords.c
@@ -25,6 +25,10 @@ static struct resword {
{ "__volatile__", VOLATILE_KEYW },
{ "__builtin_va_list", VA_LIST_KEYW },
+ { "__int128", BUILTIN_INT_KEYW },
+ { "__int128_t", BUILTIN_INT_KEYW },
+ { "__uint128_t", BUILTIN_INT_KEYW },
+
// According to rth, c99 defines "_Bool", __restrict", __restrict__", "restrict". KAO
{ "_Bool", BOOL_KEYW },
{ "_restrict", RESTRICT_KEYW },
diff --git a/scripts/genksyms/parse.y b/scripts/genksyms/parse.y
index 00a6d7e54971..1ebcf52cd0f9 100644
--- a/scripts/genksyms/parse.y
+++ b/scripts/genksyms/parse.y
@@ -76,6 +76,7 @@ static void record_compound(struct string_list **keyw,
%token ATTRIBUTE_KEYW
%token AUTO_KEYW
%token BOOL_KEYW
+%token BUILTIN_INT_KEYW
%token CHAR_KEYW
%token CONST_KEYW
%token DOUBLE_KEYW
@@ -263,6 +264,7 @@ simple_type_specifier:
| VOID_KEYW
| BOOL_KEYW
| VA_LIST_KEYW
+ | BUILTIN_INT_KEYW
| TYPE { (*$1)->tag = SYM_TYPEDEF; $$ = $1; }
;
diff --git a/scripts/headers.sh b/scripts/headers.sh
deleted file mode 100755
index e0f883eb39a2..000000000000
--- a/scripts/headers.sh
+++ /dev/null
@@ -1,29 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-# Run headers_$1 command for all suitable architectures
-
-# Stop on error
-set -e
-
-do_command()
-{
- if [ -f ${srctree}/arch/$2/include/asm/Kbuild ]; then
- make ARCH=$2 KBUILD_HEADERS=$1 headers_$1
- else
- printf "Ignoring arch: %s\n" ${arch}
- fi
-}
-
-archs=${HDR_ARCH_LIST:-$(ls ${srctree}/arch)}
-
-for arch in ${archs}; do
- case ${arch} in
- um) # no userspace export
- ;;
- *)
- if [ -d ${srctree}/arch/${arch} ]; then
- do_command $1 ${arch}
- fi
- ;;
- esac
-done
diff --git a/scripts/headers_install.sh b/scripts/headers_install.sh
index 593f8879c641..47f6f3ea0771 100755
--- a/scripts/headers_install.sh
+++ b/scripts/headers_install.sh
@@ -1,47 +1,39 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
-if [ $# -lt 2 ]
+if [ $# -ne 2 ]
then
- echo "Usage: headers_install.sh OUTDIR SRCDIR [FILES...]"
+ echo "Usage: headers_install.sh INFILE OUTFILE"
echo
echo "Prepares kernel header files for use by user space, by removing"
echo "all compiler.h definitions and #includes, removing any"
echo "#ifdef __KERNEL__ sections, and putting __underscores__ around"
echo "asm/inline/volatile keywords."
echo
- echo "OUTDIR: directory to write each userspace header FILE to."
- echo "SRCDIR: source directory where files are picked."
- echo "FILES: list of header files to operate on."
+ echo "INFILE: header file to operate on"
+ echo "OUTFILE: output file which the processed header is writen to"
exit 1
fi
# Grab arguments
+INFILE=$1
+OUTFILE=$2
+TMPFILE=$OUTFILE.tmp
-OUTDIR="$1"
-shift
-SRCDIR="$1"
-shift
+trap 'rm -f $OUTFILE $TMPFILE' EXIT
-# Iterate through files listed on command line
+sed -E -e '
+ s/([[:space:](])(__user|__force|__iomem)[[:space:]]/\1/g
+ s/__attribute_const__([[:space:]]|$)/\1/g
+ s@^#include <linux/compiler(|_types).h>@@
+ s/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$)/\1__attribute__((packed))\2/g
+ s/(^|[[:space:](])(inline|asm|volatile)([[:space:](]|$)/\1__\2__\3/g
+ s@#(ifndef|define|endif[[:space:]]*/[*])[[:space:]]*_UAPI@#\1 @
+' $INFILE > $TMPFILE || exit 1
-FILE=
-trap 'rm -f "$OUTDIR/$FILE" "$OUTDIR/$FILE.sed"' EXIT
-for i in "$@"
-do
- FILE="$(basename "$i")"
- sed -E \
- -e 's/([[:space:](])(__user|__force|__iomem)[[:space:]]/\1/g' \
- -e 's/__attribute_const__([[:space:]]|$)/\1/g' \
- -e 's@^#include <linux/compiler(|_types).h>@@' \
- -e 's/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$)/\1__attribute__((packed))\2/g' \
- -e 's/(^|[[:space:](])(inline|asm|volatile)([[:space:](]|$)/\1__\2__\3/g' \
- -e 's@#(ifndef|define|endif[[:space:]]*/[*])[[:space:]]*_UAPI@#\1 @' \
- "$SRCDIR/$i" > "$OUTDIR/$FILE.sed" || exit 1
- scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__ "$OUTDIR/$FILE.sed" \
- > "$OUTDIR/$FILE"
- [ $? -gt 1 ] && exit 1
- rm -f "$OUTDIR/$FILE.sed"
-done
+scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__ $TMPFILE > $OUTFILE
+[ $? -gt 1 ] && exit 1
+
+rm -f $TMPFILE
trap - EXIT
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index e17837f1d3f2..ae6504d07fd6 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -150,6 +150,9 @@ static int read_symbol(FILE *in, struct sym_entry *s)
/* exclude debugging symbols */
else if (stype == 'N' || stype == 'n')
return -1;
+ /* exclude s390 kasan local symbols */
+ else if (!strncmp(sym, ".LASANPC", 8))
+ return -1;
/* include the type field in the symbol name, so that it gets
* compressed together */
diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index b03dd56a4782..e8ca6dc97e96 100755
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -130,7 +130,7 @@ if is_enabled CONFIG_MODULES; then
fi
if [ "$ARCH" != "um" ]; then
- $MAKE -f $srctree/Makefile headers_check
+ $MAKE -f $srctree/Makefile headers
$MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH="$libc_headers_dir/usr"
fi
diff --git a/scripts/package/mkspec b/scripts/package/mkspec
index 009147d4718e..2d29df4a0a53 100755
--- a/scripts/package/mkspec
+++ b/scripts/package/mkspec
@@ -31,7 +31,7 @@ PROVIDES="$PROVIDES kernel-$KERNELRELEASE"
__KERNELRELEASE=$(echo $KERNELRELEASE | sed -e "s/-/_/g")
EXCLUDES="$RCS_TAR_IGNORE --exclude=.tmp_versions --exclude=*vmlinux* \
--exclude=*.o --exclude=*.ko --exclude=*.cmd --exclude=Documentation \
---exclude=.config.old --exclude=.missing-syscalls.d"
+--exclude=.config.old --exclude=.missing-syscalls.d --exclude=*.s"
# We can label the here-doc lines for conditional output to the spec file
#
diff --git a/scripts/tags.sh b/scripts/tags.sh
index d46be47633af..4e18ae5282a6 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -6,7 +6,7 @@
# mode may be any of: tags, TAGS, cscope
#
# Uses the following environment variables:
-# ARCH, SUBARCH, SRCARCH, srctree, src, obj
+# SUBARCH, SRCARCH, srctree
if [ "$KBUILD_VERBOSE" = "1" ]; then
set -x
@@ -17,8 +17,7 @@ ignore="$(echo "$RCS_FIND_IGNORE" | sed 's|\\||g' )"
# tags and cscope files should also ignore MODVERSION *.mod.c files
ignore="$ignore ( -name *.mod.c ) -prune -o"
-# Do not use full path if we do not use O=.. builds
-# Use make O=. {tags|cscope}
+# Use make KBUILD_ABS_SRCTREE=1 {tags|cscope}
# to force full paths for a non-O= build
if [ "${srctree}" = "." -o -z "${srctree}" ]; then
tree=
@@ -36,21 +35,19 @@ elif [ "${ALLSOURCE_ARCHS}" = "all" ]; then
ALLSOURCE_ARCHS=$(find ${tree}arch/ -mindepth 1 -maxdepth 1 -type d -printf '%f ')
fi
-# find sources in arch/$ARCH
+# find sources in arch/$1
find_arch_sources()
{
for i in $archincludedir; do
prune="$prune -wholename $i -prune -o"
done
- find ${tree}arch/$1 $ignore $subarchprune $prune -name "$2" \
- -not -type l -print;
+ find ${tree}arch/$1 $ignore $prune -name "$2" -not -type l -print;
}
# find sources in arch/$1/include
find_arch_include_sources()
{
- include=$(find ${tree}arch/$1/ $subarchprune \
- -name include -type d -print);
+ include=$(find ${tree}arch/$1/ -name include -type d -print);
if [ -n "$include" ]; then
archincludedir="$archincludedir $include"
find $include $ignore -name "$2" -not -type l -print;
@@ -306,36 +303,6 @@ if [ "${ARCH}" = "um" ]; then
else
archinclude=${SUBARCH}
fi
-elif [ "${SRCARCH}" = "arm" -a "${SUBARCH}" != "" ]; then
- subarchdir=$(find ${tree}arch/$SRCARCH/ -name "mach-*" -type d -o \
- -name "plat-*" -type d);
- mach_suffix=$SUBARCH
- plat_suffix=$SUBARCH
-
- # Special cases when $plat_suffix != $mach_suffix
- case $mach_suffix in
- "omap1" | "omap2")
- plat_suffix="omap"
- ;;
- esac
-
- if [ ! -d ${tree}arch/$SRCARCH/mach-$mach_suffix ]; then
- echo "Warning: arch/arm/mach-$mach_suffix/ not found." >&2
- echo " Fix your \$SUBARCH appropriately" >&2
- fi
-
- for i in $subarchdir; do
- case "$i" in
- *"mach-"${mach_suffix})
- ;;
- *"plat-"${plat_suffix})
- ;;
- *)
- subarchprune="$subarchprune \
- -wholename $i -prune -o"
- ;;
- esac
- done
fi
remove_structs=