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This commit is contained in:
Raziel K. Crowe 2022-09-09 14:20:25 +05:00
commit 26999baf09
893 changed files with 16472 additions and 9925 deletions
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10
scripts/Kbuild.include
View File

@ -15,6 +15,10 @@ pound := \#
# Name of target with a '.' as filename prefix. foo/bar.o => foo/.bar.o
dot-target = $(dir $@).$(notdir $@)
###
# Name of target with a '.tmp_' as filename prefix. foo/bar.o => foo/.tmp_bar.o
tmp-target = $(dir $@).tmp_$(notdir $@)
###
# The temporary file to save gcc -MMD generated dependencies must not
# contain a comma
@ -138,9 +142,11 @@ check-FORCE = $(if $(filter FORCE, $^),,$(warning FORCE prerequisite is missing)
if-changed-cond = $(newer-prereqs)$(cmd-check)$(check-FORCE)
# Execute command if command has changed or prerequisite(s) are updated.
if_changed = $(if $(if-changed-cond), \
if_changed = $(if $(if-changed-cond),$(cmd_and_savecmd),@:)
cmd_and_savecmd = \
$(cmd); \
printf '%s\n' 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd, @:)
printf '%s\n' 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd
# Execute the command and also postprocess generated .d dependencies file.
if_changed_dep = $(if $(if-changed-cond),$(cmd_and_fixdep),@:)

2
scripts/Kconfig.include
View File

@ -25,7 +25,7 @@ failure = $(if-success,$(1),n,y)
# $(cc-option,<flag>)
# Return y if the compiler supports <flag>, n otherwise
cc-option = $(success,mkdir .tmp_$$$$; trap "rm -rf .tmp_$$$$" EXIT; $(CC) -Werror $(CLANG_FLAGS) $(1) -c -x c /dev/null -o .tmp_$$$$/tmp.o)
cc-option = $(success,trap "rm -rf .tmp_$$" EXIT; mkdir .tmp_$$; $(CC) -Werror $(CLANG_FLAGS) $(1) -c -x c /dev/null -o .tmp_$$/tmp.o)
# $(ld-option,<flag>)
# Return y if the linker supports <flag>, n otherwise

4
scripts/Makefile
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@ -14,8 +14,8 @@ hostprogs-always-$(CONFIG_SYSTEM_EXTRA_CERTIFICATE) += insert-sys-cert
HOSTCFLAGS_sorttable.o = -I$(srctree)/tools/include
HOSTLDLIBS_sorttable = -lpthread
HOSTCFLAGS_asn1_compiler.o = -I$(srctree)/include
HOSTCFLAGS_sign-file.o = $(shell pkg-config --cflags libcrypto 2> /dev/null)
HOSTLDLIBS_sign-file = $(shell pkg-config --libs libcrypto 2> /dev/null || echo -lcrypto)
HOSTCFLAGS_sign-file.o = $(shell $(HOSTPKG_CONFIG) --cflags libcrypto 2> /dev/null)
HOSTLDLIBS_sign-file = $(shell $(HOSTPKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto)
ifdef CONFIG_UNWINDER_ORC
ifeq ($(ARCH),x86_64)

225
scripts/Makefile.build
View File

@ -85,11 +85,8 @@ ifdef need-builtin
targets-for-builtin += $(obj)/built-in.a
endif
targets-for-modules := $(patsubst %.o, %.mod, $(filter %.o, $(obj-m)))
ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),)
targets-for-modules += $(patsubst %.o, %.prelink.o, $(filter %.o, $(obj-m)))
endif
targets-for-modules := $(foreach x, o mod $(if $(CONFIG_TRIM_UNUSED_KSYMS), usyms), \
$(patsubst %.o, %.$x, $(filter %.o, $(obj-m))))
ifdef need-modorder
targets-for-modules += $(obj)/modules.order
@ -125,18 +122,16 @@ cmd_cpp_i_c = $(CPP) $(c_flags) -o $@ $<
$(obj)/%.i: $(src)/%.c FORCE
$(call if_changed_dep,cpp_i_c)
genksyms = scripts/genksyms/genksyms \
$(if $(1), -T $(2)) \
$(if $(KBUILD_PRESERVE), -p) \
-r $(or $(wildcard $(2:.symtypes=.symref)), /dev/null)
# These mirror gensymtypes_S and co below, keep them in synch.
cmd_gensymtypes_c = \
$(CPP) -D__GENKSYMS__ $(c_flags) $< | \
scripts/genksyms/genksyms $(if $(1), -T $(2)) \
$(patsubst y,-R,$(CONFIG_MODULE_REL_CRCS)) \
$(if $(KBUILD_PRESERVE),-p) \
-r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null))
cmd_gensymtypes_c = $(CPP) -D__GENKSYMS__ $(c_flags) $< | $(genksyms)
quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@
cmd_cc_symtypes_c = \
$(call cmd_gensymtypes_c,true,$@) >/dev/null; \
test -s $@ || rm -f $@
cmd_cc_symtypes_c = $(call cmd_gensymtypes_c,true,$@) >/dev/null
$(obj)/%.symtypes : $(src)/%.c FORCE
$(call cmd,cc_symtypes_c)
@ -153,8 +148,18 @@ $(obj)/%.ll: $(src)/%.c FORCE
# The C file is compiled and updated dependency information is generated.
# (See cmd_cc_o_c + relevant part of rule_cc_o_c)
is-single-obj-m = $(and $(part-of-module),$(filter $@, $(obj-m)),y)
# When a module consists of a single object, there is no reason to keep LLVM IR.
# Make $(LD) covert LLVM IR to ELF here.
ifdef CONFIG_LTO_CLANG
cmd_ld_single_m = $(if $(is-single-obj-m), ; $(LD) $(ld_flags) -r -o $(tmp-target) $@; mv $(tmp-target) $@)
endif
quiet_cmd_cc_o_c = CC $(quiet_modtag) $@
cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< $(cmd_objtool)
cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< \
$(cmd_ld_single_m) \
$(cmd_objtool)
ifdef CONFIG_MODVERSIONS
# When module versioning is enabled the following steps are executed:
@ -162,35 +167,18 @@ ifdef CONFIG_MODVERSIONS
# o if <file>.o doesn't contain a __ksymtab version, i.e. does
# not export symbols, it's done.
# o otherwise, we calculate symbol versions using the good old
# genksyms on the preprocessed source and postprocess them in a way
# that they are usable as a linker script
# o generate .tmp_<file>.o from <file>.o using the linker to
# replace the unresolved symbols __crc_exported_symbol with
# the actual value of the checksum generated by genksyms
# o remove .tmp_<file>.o to <file>.o
# genksyms on the preprocessed source and dump them into the .cmd file.
# o modpost will extract versions from that file and create *.c files that will
# be compiled and linked to the kernel and/or modules.
ifdef CONFIG_LTO_CLANG
# Generate .o.symversions files for each .o with exported symbols, and link these
# to the kernel and/or modules at the end.
cmd_modversions_c = \
gen_symversions = \
if $(NM) $@ 2>/dev/null | grep -q __ksymtab; then \
$(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
> $@.symversions; \
else \
rm -f $@.symversions; \
fi;
else
cmd_modversions_c = \
if $(OBJDUMP) -h $@ | grep -q __ksymtab; then \
$(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
> $(@D)/.tmp_$(@F:.o=.ver); \
\
$(LD) $(KBUILD_LDFLAGS) -r -o $(@D)/.tmp_$(@F) $@ \
-T $(@D)/.tmp_$(@F:.o=.ver); \
mv -f $(@D)/.tmp_$(@F) $@; \
rm -f $(@D)/.tmp_$(@F:.o=.ver); \
$(call cmd_gensymtypes_$(1),$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
>> $(dot-target).cmd; \
fi
endif
cmd_gen_symversions_c = $(call gen_symversions,c)
endif
ifdef CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT
@ -222,65 +210,38 @@ cmd_record_mcount = $(if $(findstring $(strip $(CC_FLAGS_FTRACE)),$(_c_flags)),
$(sub_cmd_record_mcount))
endif # CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT
ifdef CONFIG_STACK_VALIDATION
objtool := $(objtree)/tools/objtool/objtool
objtool_args = \
$(if $(CONFIG_UNWINDER_ORC),orc generate,check) \
$(if $(part-of-module), --module) \
$(if $(CONFIG_X86_KERNEL_IBT), --lto --ibt) \
$(if $(CONFIG_FRAME_POINTER),, --no-fp) \
$(if $(CONFIG_GCOV_KERNEL), --no-unreachable) \
$(if $(CONFIG_RETPOLINE), --retpoline) \
$(if $(CONFIG_X86_SMAP), --uaccess) \
$(if $(CONFIG_FTRACE_MCOUNT_USE_OBJTOOL), --mcount) \
$(if $(CONFIG_SLS), --sls)
cmd_objtool = $(if $(objtool-enabled), ; $(objtool) $(objtool_args) $@)
cmd_gen_objtooldep = $(if $(objtool-enabled), { echo ; echo '$@: $$(wildcard $(objtool))' ; } >> $(dot-target).cmd)
endif # CONFIG_STACK_VALIDATION
ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),)
# Skip objtool for LLVM bitcode
$(obj)/%.o: objtool-enabled :=
else
# 'OBJECT_FILES_NON_STANDARD := y': skip objtool checking for a directory
# 'OBJECT_FILES_NON_STANDARD_foo.o := 'y': skip objtool checking for a file
# 'OBJECT_FILES_NON_STANDARD_foo.o := 'n': override directory skip for a file
$(obj)/%.o: objtool-enabled = $(if $(filter-out y%, \
$(OBJECT_FILES_NON_STANDARD_$(basetarget).o)$(OBJECT_FILES_NON_STANDARD)n),y)
is-standard-object = $(if $(filter-out y%, $(OBJECT_FILES_NON_STANDARD_$(basetarget).o)$(OBJECT_FILES_NON_STANDARD)n),y)
endif
$(obj)/%.o: objtool-enabled = $(if $(is-standard-object),$(if $(delay-objtool),$(is-single-obj-m),y))
ifdef CONFIG_TRIM_UNUSED_KSYMS
cmd_gen_ksymdeps = \
$(CONFIG_SHELL) $(srctree)/scripts/gen_ksymdeps.sh $@ >> $(dot-target).cmd
# List module undefined symbols
undefined_syms = $(NM) $< | $(AWK) '$$1 == "U" { printf("%s%s", x++ ? " " : "", $$2) }';
endif
cmd_check_local_export = $(srctree)/scripts/check-local-export $@
define rule_cc_o_c
$(call cmd_and_fixdep,cc_o_c)
$(call cmd,gen_ksymdeps)
$(call cmd,check_local_export)
$(call cmd,checksrc)
$(call cmd,checkdoc)
$(call cmd,gen_objtooldep)
$(call cmd,modversions_c)
$(call cmd,gen_symversions_c)
$(call cmd,record_mcount)
endef
define rule_as_o_S
$(call cmd_and_fixdep,as_o_S)
$(call cmd,gen_ksymdeps)
$(call cmd,check_local_export)
$(call cmd,gen_objtooldep)
$(call cmd,modversions_S)
$(call cmd,gen_symversions_S)
endef
# Built-in and composite module parts
@ -288,34 +249,20 @@ $(obj)/%.o: $(src)/%.c $(recordmcount_source) FORCE
$(call if_changed_rule,cc_o_c)
$(call cmd,force_checksrc)
ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),)
# Module .o files may contain LLVM bitcode, compile them into native code
# before ELF processing
quiet_cmd_cc_prelink_modules = LD [M] $@
cmd_cc_prelink_modules = \
$(LD) $(ld_flags) -r -o $@ \
$(shell [ -s $(@:.prelink.o=.o.symversions) ] && \
echo -T $(@:.prelink.o=.o.symversions)) \
--whole-archive $(filter-out FORCE,$^) \
$(cmd_objtool)
# To make this rule robust against "Argument list too long" error,
# ensure to add $(obj)/ prefix by a shell command.
cmd_mod = printf '%s\n' $(call real-search, $*.o, .o, -objs -y -m) | \
$(AWK) '!x[$$0]++ { print("$(obj)/"$$0) }' > $@
# objtool was skipped for LLVM bitcode, run it now that we have compiled
# modules into native code
$(obj)/%.prelink.o: objtool-enabled = y
$(obj)/%.prelink.o: part-of-module := y
$(obj)/%.prelink.o: $(obj)/%.o FORCE
$(call if_changed,cc_prelink_modules)
endif
cmd_mod = { \
echo $(if $($*-objs)$($*-y)$($*-m), $(addprefix $(obj)/, $($*-objs) $($*-y) $($*-m)), $(@:.mod=.o)); \
$(undefined_syms) echo; \
} > $@
$(obj)/%.mod: $(obj)/%$(mod-prelink-ext).o FORCE
$(obj)/%.mod: FORCE
$(call if_changed,mod)
# List module undefined symbols
cmd_undefined_syms = $(NM) $< | sed -n 's/^ *U //p' > $@
$(obj)/%.usyms: $(obj)/%.o FORCE
$(call if_changed,undefined_syms)
quiet_cmd_cc_lst_c = MKLST $@
cmd_cc_lst_c = $(CC) $(c_flags) -g -c -o $*.o $< && \
$(CONFIG_SHELL) $(srctree)/scripts/makelst $*.o \
@ -344,16 +291,10 @@ cmd_gensymtypes_S = \
$(CPP) $(a_flags) $< | \
grep "\<___EXPORT_SYMBOL\>" | \
sed 's/.*___EXPORT_SYMBOL[[:space:]]*\([a-zA-Z0-9_]*\)[[:space:]]*,.*/EXPORT_SYMBOL(\1);/' ; } | \
$(CPP) -D__GENKSYMS__ $(c_flags) -xc - | \
scripts/genksyms/genksyms $(if $(1), -T $(2)) \
$(patsubst y,-R,$(CONFIG_MODULE_REL_CRCS)) \
$(if $(KBUILD_PRESERVE),-p) \
-r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null))
$(CPP) -D__GENKSYMS__ $(c_flags) -xc - | $(genksyms)
quiet_cmd_cc_symtypes_S = SYM $(quiet_modtag) $@
cmd_cc_symtypes_S = \
$(call cmd_gensymtypes_S,true,$@) >/dev/null; \
test -s $@ || rm -f $@
cmd_cc_symtypes_S = $(call cmd_gensymtypes_S,true,$@) >/dev/null
$(obj)/%.symtypes : $(src)/%.S FORCE
$(call cmd,cc_symtypes_S)
@ -373,16 +314,8 @@ ifdef CONFIG_ASM_MODVERSIONS
# versioning matches the C process described above, with difference that
# we parse asm-prototypes.h C header to get function definitions.
cmd_modversions_S = \
if $(OBJDUMP) -h $@ | grep -q __ksymtab; then \
$(call cmd_gensymtypes_S,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
> $(@D)/.tmp_$(@F:.o=.ver); \
\
$(LD) $(KBUILD_LDFLAGS) -r -o $(@D)/.tmp_$(@F) $@ \
-T $(@D)/.tmp_$(@F:.o=.ver); \
mv -f $(@D)/.tmp_$(@F) $@; \
rm -f $(@D)/.tmp_$(@F:.o=.ver); \
fi
cmd_gen_symversions_S = $(call gen_symversions,S)
endif
$(obj)/%.o: $(src)/%.S FORCE
@ -417,29 +350,19 @@ $(obj)/%.asn1.c $(obj)/%.asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler
$(subdir-builtin): $(obj)/%/built-in.a: $(obj)/% ;
$(subdir-modorder): $(obj)/%/modules.order: $(obj)/% ;
# combine symversions for later processing
ifeq ($(CONFIG_LTO_CLANG) $(CONFIG_MODVERSIONS),y y)
cmd_update_lto_symversions = \
rm -f $@.symversions \
$(foreach n, $(filter-out FORCE,$^), \
$(if $(shell test -s $(n).symversions && echo y), \
; cat $(n).symversions >> $@.symversions))
else
cmd_update_lto_symversions = echo >/dev/null
endif
#
# Rule to compile a set of .o files into one .a file (without symbol table)
#
# To make this rule robust against "Argument list too long" error,
# remove $(obj)/ prefix, and restore it by a shell command.
quiet_cmd_ar_builtin = AR $@
cmd_ar_builtin = rm -f $@; $(AR) cDPrST $@ $(real-prereqs)
quiet_cmd_ar_and_symver = AR $@
cmd_ar_and_symver = $(cmd_update_lto_symversions); $(cmd_ar_builtin)
cmd_ar_builtin = rm -f $@; \
$(if $(real-prereqs), printf "$(obj)/%s " $(patsubst $(obj)/%,%,$(real-prereqs)) | xargs) \
$(AR) cDPrST $@
$(obj)/built-in.a: $(real-obj-y) FORCE
$(call if_changed,ar_and_symver)
$(call if_changed,ar_builtin)
#
# Rule to create modules.order file
@ -459,32 +382,24 @@ $(obj)/modules.order: $(obj-m) FORCE
#
# Rule to compile a set of .o files into one .a file (with symbol table)
#
quiet_cmd_ar_lib = AR $@
cmd_ar_lib = $(cmd_update_lto_symversions); $(cmd_ar)
$(obj)/lib.a: $(lib-y) FORCE
$(call if_changed,ar_lib)
$(call if_changed,ar)
# NOTE:
# Do not replace $(filter %.o,^) with $(real-prereqs). When a single object
# module is turned into a multi object module, $^ will contain header file
# dependencies recorded in the .*.cmd file.
ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),)
quiet_cmd_link_multi-m = AR [M] $@
cmd_link_multi-m = \
$(cmd_update_lto_symversions); \
rm -f $@; \
$(AR) cDPrsT $@ $(filter %.o,$^)
else
quiet_cmd_link_multi-m = LD [M] $@
cmd_link_multi-m = $(LD) $(ld_flags) -r -o $@ $(filter %.o,$^)
endif
quiet_cmd_ld_multi_m = LD [M] $@
cmd_ld_multi_m = $(LD) $(ld_flags) -r -o $@ @$(patsubst %.o,%.mod,$@) $(cmd_objtool)
$(multi-obj-m): FORCE
$(call if_changed,link_multi-m)
define rule_ld_multi_m
$(call cmd_and_savecmd,ld_multi_m)
$(call cmd,gen_objtooldep)
endef
$(multi-obj-m): objtool-enabled := $(delay-objtool)
$(multi-obj-m): part-of-module := y
$(multi-obj-m): %.o: %.mod FORCE
$(call if_changed_rule,ld_multi_m)
$(call multi_depend, $(multi-obj-m), .o, -objs -y -m)
targets += $(multi-obj-m)
targets := $(filter-out $(PHONY), $(targets))
# Add intermediate targets:

8
scripts/Makefile.clean
View File

@ -36,13 +36,7 @@ __clean-files := \
__clean-files := $(filter-out $(no-clean-files), $(__clean-files))
# clean-files is given relative to the current directory, unless it
# starts with $(objtree)/ (which means "./", so do not add "./" unless
# you want to delete a file from the toplevel object directory).
__clean-files := $(wildcard \
$(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \
$(filter $(objtree)/%, $(__clean-files)))
__clean-files := $(wildcard $(addprefix $(obj)/, $(__clean-files)))
# ==========================================================================

2
scripts/Makefile.compiler
View File

@ -21,8 +21,8 @@ TMPOUT = $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_$$$$
# automatically cleaned up.
try-run = $(shell set -e; \
TMP=$(TMPOUT)/tmp; \
mkdir -p $(TMPOUT); \
trap "rm -rf $(TMPOUT)" EXIT; \
mkdir -p $(TMPOUT); \
if ($(1)) >/dev/null 2>&1; \
then echo "$(2)"; \
else echo "$(3)"; \

26
scripts/Makefile.extrawarn
View File

@ -2,8 +2,8 @@
# ==========================================================================
# make W=... settings
#
# There are three warning groups enabled by W=1, W=2, W=3.
# They are independent, and can be combined like W=12 or W=123.
# There are four warning groups enabled by W=1, W=2, W=3, and W=e
# They are independent, and can be combined like W=12 or W=123e.
# ==========================================================================
KBUILD_CFLAGS += $(call cc-disable-warning, packed-not-aligned)
@ -47,9 +47,20 @@ else
ifdef CONFIG_CC_IS_CLANG
KBUILD_CFLAGS += -Wno-initializer-overrides
# Clang before clang-16 would warn on default argument promotions.
ifeq ($(shell [ $(CONFIG_CLANG_VERSION) -lt 160000 ] && echo y),y)
# Disable -Wformat
KBUILD_CFLAGS += -Wno-format
# Then re-enable flags that were part of the -Wformat group that aren't
# problematic.
KBUILD_CFLAGS += -Wformat-extra-args -Wformat-invalid-specifier
KBUILD_CFLAGS += -Wformat-zero-length -Wnonnull
# Requires clang-12+.
ifeq ($(shell [ $(CONFIG_CLANG_VERSION) -ge 120000 ] && echo y),y)
KBUILD_CFLAGS += -Wformat-insufficient-args
endif
endif
KBUILD_CFLAGS += -Wno-sign-compare
KBUILD_CFLAGS += -Wno-format-zero-length
KBUILD_CFLAGS += $(call cc-disable-warning, pointer-to-enum-cast)
KBUILD_CFLAGS += -Wno-tautological-constant-out-of-range-compare
KBUILD_CFLAGS += $(call cc-disable-warning, unaligned-access)
@ -94,3 +105,12 @@ KBUILD_CFLAGS += $(call cc-option, -Wpacked-bitfield-compat)
KBUILD_CPPFLAGS += -DKBUILD_EXTRA_WARN3
endif
#
# W=e - error out on warnings
#
ifneq ($(findstring e, $(KBUILD_EXTRA_WARN)),)
KBUILD_CFLAGS += -Werror
endif

24
scripts/Makefile.gcc-plugins
View File

@ -4,12 +4,10 @@ gcc-plugin-$(CONFIG_GCC_PLUGIN_LATENT_ENTROPY) += latent_entropy_plugin.so
gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_LATENT_ENTROPY) \
+= -DLATENT_ENTROPY_PLUGIN
ifdef CONFIG_GCC_PLUGIN_LATENT_ENTROPY
DISABLE_LATENT_ENTROPY_PLUGIN += -fplugin-arg-latent_entropy_plugin-disable
DISABLE_LATENT_ENTROPY_PLUGIN += -fplugin-arg-latent_entropy_plugin-disable -ULATENT_ENTROPY_PLUGIN
endif
export DISABLE_LATENT_ENTROPY_PLUGIN
gcc-plugin-$(CONFIG_GCC_PLUGIN_SANCOV) += sancov_plugin.so
gcc-plugin-$(CONFIG_GCC_PLUGIN_STRUCTLEAK) += structleak_plugin.so
gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLEAK_VERBOSE) \
+= -fplugin-arg-structleak_plugin-verbose
@ -24,12 +22,6 @@ export DISABLE_STRUCTLEAK_PLUGIN
gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLEAK) \
+= -DSTRUCTLEAK_PLUGIN
gcc-plugin-$(CONFIG_GCC_PLUGIN_RANDSTRUCT) += randomize_layout_plugin.so
gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_RANDSTRUCT) \
+= -DRANDSTRUCT_PLUGIN
gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_RANDSTRUCT_PERFORMANCE) \
+= -fplugin-arg-randomize_layout_plugin-performance-mode
gcc-plugin-$(CONFIG_GCC_PLUGIN_STACKLEAK) += stackleak_plugin.so
gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STACKLEAK) \
+= -DSTACKLEAK_PLUGIN
@ -53,13 +45,19 @@ export DISABLE_ARM_SSP_PER_TASK_PLUGIN
# All the plugin CFLAGS are collected here in case a build target needs to
# filter them out of the KBUILD_CFLAGS.
GCC_PLUGINS_CFLAGS := $(strip $(addprefix -fplugin=$(objtree)/scripts/gcc-plugins/, $(gcc-plugin-y)) $(gcc-plugin-cflags-y))
# The sancov_plugin.so is included via CFLAGS_KCOV, so it is removed here.
GCC_PLUGINS_CFLAGS := $(filter-out %/sancov_plugin.so, $(GCC_PLUGINS_CFLAGS))
export GCC_PLUGINS_CFLAGS
# Add the flags to the build!
KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
# All enabled GCC plugins are collected here for building below.
GCC_PLUGIN := $(gcc-plugin-y)
# Some plugins are enabled outside of this Makefile, but they still need to
# be included in GCC_PLUGIN so they can get built.
gcc-plugin-external-$(CONFIG_GCC_PLUGIN_SANCOV) \
+= sancov_plugin.so
gcc-plugin-external-$(CONFIG_GCC_PLUGIN_RANDSTRUCT) \
+= randomize_layout_plugin.so
# All enabled GCC plugins are collected here for building in
# scripts/gcc-scripts/Makefile.
GCC_PLUGIN := $(gcc-plugin-y) $(gcc-plugin-external-y)
export GCC_PLUGIN

38
scripts/Makefile.lib
View File

@ -225,20 +225,40 @@ dtc_cpp_flags = -Wp,-MMD,$(depfile).pre.tmp -nostdinc \
$(addprefix -I,$(DTC_INCLUDE)) \
-undef -D__DTS__
ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),)
# With CONFIG_LTO_CLANG, .o files in modules might be LLVM bitcode, so we
# need to run LTO to compile them into native code (.lto.o) before further
# processing.
mod-prelink-ext := .prelink
endif
ifdef CONFIG_OBJTOOL
objtool := $(objtree)/tools/objtool/objtool
objtool_args = \
$(if $(CONFIG_HAVE_JUMP_LABEL_HACK), --hacks=jump_label) \
$(if $(CONFIG_HAVE_NOINSTR_HACK), --hacks=noinstr) \
$(if $(CONFIG_X86_KERNEL_IBT), --ibt) \
$(if $(CONFIG_FTRACE_MCOUNT_USE_OBJTOOL), --mcount) \
$(if $(CONFIG_UNWINDER_ORC), --orc) \
$(if $(CONFIG_RETPOLINE), --retpoline) \
$(if $(CONFIG_RETHUNK), --rethunk) \
$(if $(CONFIG_SLS), --sls) \
$(if $(CONFIG_STACK_VALIDATION), --stackval) \
$(if $(CONFIG_HAVE_STATIC_CALL_INLINE), --static-call) \
$(if $(CONFIG_HAVE_UACCESS_VALIDATION), --uaccess) \
$(if $(delay-objtool), --link) \
$(if $(part-of-module), --module) \
$(if $(CONFIG_GCOV_KERNEL), --no-unreachable)
delay-objtool := $(or $(CONFIG_LTO_CLANG),$(CONFIG_X86_KERNEL_IBT))
cmd_objtool = $(if $(objtool-enabled), ; $(objtool) $(objtool_args) $@)
cmd_gen_objtooldep = $(if $(objtool-enabled), { echo ; echo '$@: $$(wildcard $(objtool))' ; } >> $(dot-target).cmd)
endif # CONFIG_OBJTOOL
# Useful for describing the dependency of composite objects
# Usage:
# $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add)
define multi_depend
$(foreach m, $(notdir $1), \
$(eval $(obj)/$m: \
$(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
$(foreach m, $1, \
$(eval $m: \
$(addprefix $(obj)/, $(call suffix-search, $(patsubst $(obj)/%,%,$m), $2, $3))))
endef
# Copy a file

5
scripts/Makefile.modfinal
View File

@ -9,7 +9,7 @@ __modfinal:
include include/config/auto.conf
include $(srctree)/scripts/Kbuild.include
# for c_flags and mod-prelink-ext
# for c_flags
include $(srctree)/scripts/Makefile.lib
# find all modules listed in modules.order
@ -54,9 +54,8 @@ if_changed_except = $(if $(call newer_prereqs_except,$(2))$(cmd-check), \
$(cmd); \
printf '%s\n' 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd, @:)
# Re-generate module BTFs if either module's .ko or vmlinux changed
$(modules): %.ko: %$(mod-prelink-ext).o %.mod.o scripts/module.lds $(if $(KBUILD_BUILTIN),vmlinux) FORCE
$(modules): %.ko: %.o %.mod.o scripts/module.lds $(if $(KBUILD_BUILTIN),vmlinux) FORCE
+$(call if_changed_except,ld_ko_o,vmlinux)
ifdef CONFIG_DEBUG_INFO_BTF_MODULES
+$(if $(newer-prereqs),$(call cmd,btf_ko))

6
scripts/Makefile.modinst
View File

@ -18,6 +18,9 @@ INSTALL_MOD_DIR ?= extra
dst := $(MODLIB)/$(INSTALL_MOD_DIR)
endif
$(foreach x, % :, $(if $(findstring $x, $(dst)), \
$(error module installation path cannot contain '$x')))
suffix-y :=
suffix-$(CONFIG_MODULE_COMPRESS_GZIP) := .gz
suffix-$(CONFIG_MODULE_COMPRESS_XZ) := .xz
@ -28,9 +31,6 @@ modules := $(patsubst $(extmod_prefix)%, $(dst)/%$(suffix-y), $(modules))
__modinst: $(modules)
@:
quiet_cmd_none =
cmd_none = :
#
# Installation
#

12
scripts/Makefile.modpost
View File

@ -41,9 +41,6 @@ __modpost:
include include/config/auto.conf
include $(srctree)/scripts/Kbuild.include
# for mod-prelink-ext
include $(srctree)/scripts/Makefile.lib
MODPOST = scripts/mod/modpost \
$(if $(CONFIG_MODVERSIONS),-m) \
$(if $(CONFIG_MODULE_SRCVERSION_ALL),-a) \
@ -87,8 +84,7 @@ obj := $(KBUILD_EXTMOD)
src := $(obj)
# Include the module's Makefile to find KBUILD_EXTRA_SYMBOLS
include $(if $(wildcard $(KBUILD_EXTMOD)/Kbuild), \
$(KBUILD_EXTMOD)/Kbuild, $(KBUILD_EXTMOD)/Makefile)
include $(or $(wildcard $(src)/Kbuild), $(src)/Makefile)
# modpost option for external modules
MODPOST += -e
@ -118,8 +114,6 @@ $(input-symdump):
@echo >&2 ' Modules may not have dependencies or modversions.'
@echo >&2 ' You may get many unresolved symbol warnings.'
modules := $(sort $(shell cat $(MODORDER)))
# KBUILD_MODPOST_WARN can be set to avoid error out in case of undefined symbols
ifneq ($(KBUILD_MODPOST_WARN)$(filter-out $(existing-input-symdump), $(input-symdump)),)
MODPOST += -w
@ -128,9 +122,9 @@ endif
# Read out modules.order to pass in modpost.
# Otherwise, allmodconfig would fail with "Argument list too long".
quiet_cmd_modpost = MODPOST $@
cmd_modpost = sed 's/\.ko$$/$(mod-prelink-ext)\.o/' $< | $(MODPOST) -T -
cmd_modpost = sed 's/ko$$/o/' $< | $(MODPOST) -T -
$(output-symdump): $(MODORDER) $(input-symdump) $(modules:.ko=$(mod-prelink-ext).o) FORCE
$(output-symdump): $(MODORDER) $(input-symdump) FORCE
$(call if_changed,modpost)
targets += $(output-symdump)

4
scripts/Makefile.package
View File

@ -56,7 +56,7 @@ rpm-pkg:
$(MAKE) clean
$(CONFIG_SHELL) $(MKSPEC) >$(objtree)/kernel.spec
$(call cmd,src_tar,$(KERNELPATH),kernel.spec)
+rpmbuild $(RPMOPTS) --target $(UTS_MACHINE) -ta $(KERNELPATH).tar.gz \
+rpmbuild $(RPMOPTS) --target $(UTS_MACHINE)-linux -ta $(KERNELPATH).tar.gz \
--define='_smp_mflags %{nil}'
# binrpm-pkg
@ -66,7 +66,7 @@ binrpm-pkg:
$(MAKE) -f $(srctree)/Makefile
$(CONFIG_SHELL) $(MKSPEC) prebuilt > $(objtree)/binkernel.spec
+rpmbuild $(RPMOPTS) --define "_builddir $(objtree)" --target \
$(UTS_MACHINE) -bb $(objtree)/binkernel.spec
$(UTS_MACHINE)-linux -bb $(objtree)/binkernel.spec
PHONY += deb-pkg
deb-pkg:

2
scripts/adjust_autoksyms.sh
View File

@ -35,7 +35,7 @@ case "$KBUILD_VERBOSE" in
esac
# Generate a new symbol list file
$CONFIG_SHELL $srctree/scripts/gen_autoksyms.sh "$new_ksyms_file"
$CONFIG_SHELL $srctree/scripts/gen_autoksyms.sh --modorder "$new_ksyms_file"
# Extract changes between old and new list and touch corresponding
# dependency files.

31
scripts/atomic/gen-atomic-fallback.sh
View File

@ -164,41 +164,44 @@ gen_xchg_fallbacks()
gen_try_cmpxchg_fallback()
{
local cmpxchg="$1"; shift;
local order="$1"; shift;
cat <<EOF
#ifndef arch_try_cmpxchg${order}
#define arch_try_cmpxchg${order}(_ptr, _oldp, _new) \\
#ifndef arch_try_${cmpxchg}${order}
#define arch_try_${cmpxchg}${order}(_ptr, _oldp, _new) \\
({ \\
typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \\
___r = arch_cmpxchg${order}((_ptr), ___o, (_new)); \\
___r = arch_${cmpxchg}${order}((_ptr), ___o, (_new)); \\
if (unlikely(___r != ___o)) \\
*___op = ___r; \\
likely(___r == ___o); \\
})
#endif /* arch_try_cmpxchg${order} */
#endif /* arch_try_${cmpxchg}${order} */
EOF
}
gen_try_cmpxchg_fallbacks()
{
printf "#ifndef arch_try_cmpxchg_relaxed\n"
printf "#ifdef arch_try_cmpxchg\n"
local cmpxchg="$1"; shift;
gen_basic_fallbacks "arch_try_cmpxchg"
printf "#ifndef arch_try_${cmpxchg}_relaxed\n"
printf "#ifdef arch_try_${cmpxchg}\n"
printf "#endif /* arch_try_cmpxchg */\n\n"
gen_basic_fallbacks "arch_try_${cmpxchg}"
printf "#endif /* arch_try_${cmpxchg} */\n\n"
for order in "" "_acquire" "_release" "_relaxed"; do
gen_try_cmpxchg_fallback "${order}"
gen_try_cmpxchg_fallback "${cmpxchg}" "${order}"
done
printf "#else /* arch_try_cmpxchg_relaxed */\n"
printf "#else /* arch_try_${cmpxchg}_relaxed */\n"
gen_order_fallbacks "arch_try_cmpxchg"
gen_order_fallbacks "arch_try_${cmpxchg}"
printf "#endif /* arch_try_cmpxchg_relaxed */\n\n"
printf "#endif /* arch_try_${cmpxchg}_relaxed */\n\n"
}
cat << EOF
@ -218,7 +221,9 @@ for xchg in "arch_xchg" "arch_cmpxchg" "arch_cmpxchg64"; do
gen_xchg_fallbacks "${xchg}"
done
gen_try_cmpxchg_fallbacks
for cmpxchg in "cmpxchg" "cmpxchg64"; do
gen_try_cmpxchg_fallbacks "${cmpxchg}"
done
grep '^[a-z]' "$1" | while read name meta args; do
gen_proto "${meta}" "${name}" "atomic" "int" ${args}

2
scripts/atomic/gen-atomic-instrumented.sh
View File

@ -166,7 +166,7 @@ grep '^[a-z]' "$1" | while read name meta args; do
done
for xchg in "xchg" "cmpxchg" "cmpxchg64" "try_cmpxchg"; do
for xchg in "xchg" "cmpxchg" "cmpxchg64" "try_cmpxchg" "try_cmpxchg64"; do
for order in "" "_acquire" "_release" "_relaxed"; do
gen_xchg "${xchg}" "${order}" ""
printf "\n"

1
scripts/basic/.gitignore vendored
View File

@ -1,2 +1,3 @@
# SPDX-License-Identifier: GPL-2.0-only
/fixdep
/randstruct.seed

11
scripts/basic/Makefile
View File

@ -3,3 +3,14 @@
# fixdep: used to generate dependency information during build process
hostprogs-always-y += fixdep
# randstruct: the seed is needed before building the gcc-plugin or
# before running a Clang kernel build.
gen-randstruct-seed := $(srctree)/scripts/gen-randstruct-seed.sh
quiet_cmd_create_randstruct_seed = GENSEED $@
cmd_create_randstruct_seed = \
$(CONFIG_SHELL) $(gen-randstruct-seed) \
$@ $(objtree)/include/generated/randstruct_hash.h
$(obj)/randstruct.seed: $(gen-randstruct-seed) FORCE
$(call if_changed,create_randstruct_seed)
always-$(CONFIG_RANDSTRUCT) += randstruct.seed

48
scripts/bloat-o-meter
View File

@ -7,24 +7,31 @@
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.
import sys, os, re
import sys, os, re, argparse
from signal import signal, SIGPIPE, SIG_DFL
signal(SIGPIPE, SIG_DFL)
if len(sys.argv) < 3:
sys.stderr.write("usage: %s [option] file1 file2\n" % sys.argv[0])
sys.stderr.write("The options are:\n")
sys.stderr.write("-c categorize output based on symbol type\n")
sys.stderr.write("-d Show delta of Data Section\n")
sys.stderr.write("-t Show delta of text Section\n")
sys.exit(-1)
parser = argparse.ArgumentParser(description="Simple script used to compare the symbol sizes of 2 object files")
group = parser.add_mutually_exclusive_group()
group.add_argument('-c', help='categorize output based on symbol type', action='store_true')
group.add_argument('-d', help='Show delta of Data Section', action='store_true')
group.add_argument('-t', help='Show delta of text Section', action='store_true')
parser.add_argument('-p', dest='prefix', help='Arch prefix for the tool being used. Useful in cross build scenarios')
parser.add_argument('file1', help='First file to compare')
parser.add_argument('file2', help='Second file to compare')
args = parser.parse_args()
re_NUMBER = re.compile(r'\.[0-9]+')
def getsizes(file, format):
sym = {}
with os.popen("nm --size-sort " + file) as f:
nm = "nm"
if args.prefix:
nm = "{}nm".format(args.prefix)
with os.popen("{} --size-sort {}".format(nm, file)) as f:
for line in f:
if line.startswith("\n") or ":" in line:
continue
@ -36,6 +43,7 @@ def getsizes(file, format):
if name.startswith("__se_compat_sys"): continue
if name.startswith("__addressable_"): continue
if name == "linux_banner": continue
if name == "vermagic": continue
# statics and some other optimizations adds random .NUMBER
name = re_NUMBER.sub('', name)
sym[name] = sym.get(name, 0) + int(size, 16)
@ -76,9 +84,9 @@ def calc(oldfile, newfile, format):
delta.reverse()
return grow, shrink, add, remove, up, down, delta, old, new, otot, ntot
def print_result(symboltype, symbolformat, argc):
def print_result(symboltype, symbolformat):
grow, shrink, add, remove, up, down, delta, old, new, otot, ntot = \
calc(sys.argv[argc - 1], sys.argv[argc], symbolformat)
calc(args.file1, args.file2, symbolformat)
print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
(add, remove, grow, shrink, up, -down, up-down))
@ -92,13 +100,13 @@ def print_result(symboltype, symbolformat, argc):
percent = 0
print("Total: Before=%d, After=%d, chg %+.2f%%" % (otot, ntot, percent))
if sys.argv[1] == "-c":
print_result("Function", "tT", 3)
print_result("Data", "dDbB", 3)
print_result("RO Data", "rR", 3)
elif sys.argv[1] == "-d":
print_result("Data", "dDbBrR", 3)
elif sys.argv[1] == "-t":
print_result("Function", "tT", 3)
if args.c:
print_result("Function", "tT")
print_result("Data", "dDbB")
print_result("RO Data", "rR")
elif args.d:
print_result("Data", "dDbBrR")
elif args.t:
print_result("Function", "tT")
else:
print_result("Function", "tTdDbBrR", 2)
print_result("Function", "tTdDbBrR")

30
scripts/bpf_doc.py
View File

@ -333,27 +333,7 @@ class PrinterRST(Printer):
.. Copyright (C) All BPF authors and contributors from 2014 to present.
.. See git log include/uapi/linux/bpf.h in kernel tree for details.
..
.. %%%LICENSE_START(VERBATIM)
.. Permission is granted to make and distribute verbatim copies of this
.. manual provided the copyright notice and this permission notice are
.. preserved on all copies.
..
.. Permission is granted to copy and distribute modified versions of this
.. manual under the conditions for verbatim copying, provided that the
.. entire resulting derived work is distributed under the terms of a
.. permission notice identical to this one.
..
.. Since the Linux kernel and libraries are constantly changing, this
.. manual page may be incorrect or out-of-date. The author(s) assume no
.. responsibility for errors or omissions, or for damages resulting from
.. the use of the information contained herein. The author(s) may not
.. have taken the same level of care in the production of this manual,
.. which is licensed free of charge, as they might when working
.. professionally.
..
.. Formatted or processed versions of this manual, if unaccompanied by
.. the source, must acknowledge the copyright and authors of this work.
.. %%%LICENSE_END
.. SPDX-License-Identifier: Linux-man-pages-copyleft
..
.. Please do not edit this file. It was generated from the documentation
.. located in file include/uapi/linux/bpf.h of the Linux kernel sources
@ -633,6 +613,10 @@ class PrinterHelpers(Printer):
'struct socket',
'struct file',
'struct bpf_timer',
'struct mptcp_sock',
'struct bpf_dynptr',
'struct iphdr',
'struct ipv6hdr',
]
known_types = {
'...',
@ -682,6 +666,10 @@ class PrinterHelpers(Printer):
'struct socket',
'struct file',
'struct bpf_timer',
'struct mptcp_sock',
'struct bpf_dynptr',
'struct iphdr',
'struct ipv6hdr',
}
mapped_types = {
'u8': '__u8',

13
scripts/checkpatch.pl
View File

@ -1042,7 +1042,8 @@ our $FuncArg = qr{$Typecast{0,1}($LvalOrFunc|$Constant|$String)};
our $declaration_macros = qr{(?x:
(?:$Storage\s+)?(?:[A-Z_][A-Z0-9]*_){0,2}(?:DEFINE|DECLARE)(?:_[A-Z0-9]+){1,6}\s*\(|
(?:$Storage\s+)?[HLP]?LIST_HEAD\s*\(|
(?:SKCIPHER_REQUEST|SHASH_DESC|AHASH_REQUEST)_ON_STACK\s*\(
(?:SKCIPHER_REQUEST|SHASH_DESC|AHASH_REQUEST)_ON_STACK\s*\(|
(?:$Storage\s+)?(?:XA_STATE|XA_STATE_ORDER)\s*\(
)};
our %allow_repeated_words = (
@ -5720,7 +5721,7 @@ sub process {
$var !~ /^(?:[a-z0-9_]*|[A-Z0-9_]*)?_?[a-z][A-Z](?:_[a-z0-9_]+|_[A-Z0-9_]+)?$/ &&
#Ignore some three character SI units explicitly, like MiB and KHz
$var !~ /^(?:[a-z_]*?)_?(?:[KMGT]iB|[KMGT]?Hz)(?:_[a-z_]+)?$/) {
while ($var =~ m{($Ident)}g) {
while ($var =~ m{\b($Ident)}g) {
my $word = $1;
next if ($word !~ /[A-Z][a-z]|[a-z][A-Z]/);
if ($check) {
@ -7033,14 +7034,16 @@ sub process {
"Prefer $3(sizeof(*$1)...) over $3($4...)\n" . $herecurr);
}
# check for k[mz]alloc with multiplies that could be kmalloc_array/kcalloc
# check for (kv|k)[mz]alloc with multiplies that could be kmalloc_array/kvmalloc_array/kvcalloc/kcalloc
if ($perl_version_ok &&
defined $stat &&
$stat =~ /^\+\s*($Lval)\s*\=\s*(?:$balanced_parens)?\s*(k[mz]alloc)\s*\(\s*($FuncArg)\s*\*\s*($FuncArg)\s*,/) {
$stat =~ /^\+\s*($Lval)\s*\=\s*(?:$balanced_parens)?\s*((?:kv|k)[mz]alloc)\s*\(\s*($FuncArg)\s*\*\s*($FuncArg)\s*,/) {
my $oldfunc = $3;
my $a1 = $4;
my $a2 = $10;
my $newfunc = "kmalloc_array";
$newfunc = "kvmalloc_array" if ($oldfunc eq "kvmalloc");
$newfunc = "kvcalloc" if ($oldfunc eq "kvzalloc");
$newfunc = "kcalloc" if ($oldfunc eq "kzalloc");
my $r1 = $a1;
my $r2 = $a2;
@ -7057,7 +7060,7 @@ sub process {
"Prefer $newfunc over $oldfunc with multiply\n" . $herectx) &&
$cnt == 1 &&
$fix) {
$fixed[$fixlinenr] =~ s/\b($Lval)\s*\=\s*(?:$balanced_parens)?\s*(k[mz]alloc)\s*\(\s*($FuncArg)\s*\*\s*($FuncArg)/$1 . ' = ' . "$newfunc(" . trim($r1) . ', ' . trim($r2)/e;
$fixed[$fixlinenr] =~ s/\b($Lval)\s*\=\s*(?:$balanced_parens)?\s*((?:kv|k)[mz]alloc)\s*\(\s*($FuncArg)\s*\*\s*($FuncArg)/$1 . ' = ' . "$newfunc(" . trim($r1) . ', ' . trim($r2)/e;
}
}
}

4
scripts/checkstack.pl
View File

@ -16,6 +16,7 @@
# AArch64, PARISC ports by Kyle McMartin
# sparc port by Martin Habets <errandir_news@mph.eclipse.co.uk>
# ppc64le port by Breno Leitao <leitao@debian.org>
# riscv port by Wadim Mueller <wafgo01@gmail.com>
#
# Usage:
# objdump -d vmlinux | scripts/checkstack.pl [arch]
@ -108,6 +109,9 @@ my (@stack, $re, $dre, $sub, $x, $xs, $funcre, $min_stack);
} elsif ($arch eq 'sparc' || $arch eq 'sparc64') {
# f0019d10: 9d e3 bf 90 save %sp, -112, %sp
$re = qr/.*save.*%sp, -(([0-9]{2}|[3-9])[0-9]{2}), %sp/o;
} elsif ($arch =~ /^riscv(64)?$/) {
#ffffffff8036e868: c2010113 addi sp,sp,-992
$re = qr/.*addi.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o;
} else {
print("wrong or unknown architecture \"$arch\"\n");
exit

2
scripts/checksyscalls.sh
View File

@ -268,4 +268,4 @@ syscall_list() {
}
(ignore_list && syscall_list $(dirname $0)/../arch/x86/entry/syscalls/syscall_32.tbl) | \
$* -Wno-error -E -x c - > /dev/null
$* -Wno-error -Wno-unused-macros -E -x c - > /dev/null

6
scripts/clang-tools/gen_compile_commands.py
View File

@ -157,10 +157,10 @@ def cmdfiles_for_modorder(modorder):
if ext != '.ko':
sys.exit('{}: module path must end with .ko'.format(ko))
mod = base + '.mod'
# The first line of *.mod lists the objects that compose the module.
# Read from *.mod, to get a list of objects that compose the module.
with open(mod) as m:
for obj in m.readline().split():
yield to_cmdfile(obj)
for mod_line in m:
yield to_cmdfile(mod_line.rstrip())
def process_line(root_directory, command_prefix, file_path):

1
scripts/clang-tools/run-clang-tools.py
View File

@ -51,6 +51,7 @@ def run_analysis(entry):
checks += "linuxkernel-*"
else:
checks += "clang-analyzer-*"
checks += ",-clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling"
p = subprocess.run(["clang-tidy", "-p", args.path, checks, entry["file"]],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,

2
scripts/coccinelle/api/alloc/zalloc-simple.cocci
View File

@ -10,7 +10,7 @@
// Copyright: (C) 2009-2010 Julia Lawall, Nicolas Palix, DIKU.
// Copyright: (C) 2009-2010 Gilles Muller, INRIA/LiP6.
// Copyright: (C) 2017 Himanshu Jha
// URL: http://coccinelle.lip6.fr/rules/kzalloc.html
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Options: --no-includes --include-headers
//
// Keywords: kmalloc, kzalloc

2
scripts/coccinelle/api/atomic_as_refcounter.cocci
View File

@ -5,7 +5,7 @@
// Copyright (c) 2016-2017, Elena Reshetova, Intel Corporation
//
// Confidence: Moderate
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Options: --include-headers --very-quiet
virtual report

2
scripts/coccinelle/api/check_bq27xxx_data.cocci
View File

@ -6,7 +6,7 @@
///
// Confidence: High
// Copyright: (C) 2017 Julia Lawall, Inria/LIP6,
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Requires: 1.0.7
// Keywords: BQ27XXX_DATA

2
scripts/coccinelle/api/d_find_alias.cocci
View File

@ -4,7 +4,7 @@
// Keywords: d_find_alias, dput
//
// Confidence: Moderate
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Options: --include-headers
virtual context

2
scripts/coccinelle/api/err_cast.cocci
View File

@ -6,7 +6,7 @@
// Copyright: (C) 2009, 2010 Nicolas Palix, DIKU.
// Copyright: (C) 2009, 2010 Julia Lawall, DIKU.
// Copyright: (C) 2009, 2010 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Options:
//
// Keywords: ERR_PTR, PTR_ERR, ERR_CAST

2
scripts/coccinelle/api/kstrdup.cocci
View File

@ -5,7 +5,7 @@
// Copyright: (C) 2010-2012 Nicolas Palix.
// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/api/memdup.cocci
View File

@ -5,7 +5,7 @@
// Copyright: (C) 2010-2012 Nicolas Palix.
// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/api/memdup_user.cocci
View File

@ -6,7 +6,7 @@
// Copyright: (C) 2010-2012 Nicolas Palix.
// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/api/pm_runtime.cocci
View File

@ -4,7 +4,7 @@
// Keywords: pm_runtime
// Confidence: Medium
// Copyright (C) 2013 Texas Instruments Incorporated -
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Options: --include-headers
virtual patch

2
scripts/coccinelle/api/resource_size.cocci
View File

@ -7,7 +7,7 @@
// Copyright: (C) 2009, 2010 Nicolas Palix, DIKU.
// Copyright: (C) 2009, 2010 Julia Lawall, DIKU.
// Copyright: (C) 2009, 2010 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Options:
//
// Keywords: resource_size

2
scripts/coccinelle/free/clk_put.cocci
View File

@ -8,7 +8,7 @@
// Confidence: Moderate
// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options:

2
scripts/coccinelle/free/devm_free.cocci
View File

@ -17,7 +17,7 @@
// Confidence: Moderate
// Copyright: (C) 2011 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2011 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/free/iounmap.cocci
View File

@ -8,7 +8,7 @@
// Confidence: Moderate
// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options:

2
scripts/coccinelle/free/kfree.cocci
View File

@ -9,7 +9,7 @@
// Copyright: (C) 2010-2012 Nicolas Palix.
// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/free/kfreeaddr.cocci
View File

@ -3,7 +3,7 @@
///
// Confidence: High
// Copyright: (C) 2013 Julia Lawall, INRIA/LIP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/free/pci_free_consistent.cocci
View File

@ -3,7 +3,7 @@
///
// Confidence: Moderate
// Copyright: (C) 2013 Petr Strnad.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Keywords: pci_free_consistent, pci_alloc_consistent
// Options: --no-includes --include-headers

2
scripts/coccinelle/iterators/device_node_continue.cocci
View File

@ -4,7 +4,7 @@
///
// Confidence: High
// Copyright: (C) 2015 Julia Lawall, Inria.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Options: --no-includes --include-headers
// Requires: 1.0.4
// Keywords: for_each_child_of_node, etc.

2
scripts/coccinelle/iterators/for_each_child.cocci
View File

@ -5,7 +5,7 @@
///
// Confidence: High
// Copyright: (C) 2020 Sumera Priyadarsini
// URL: http://coccinelle.lip6.fr
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Options: --no-includes --include-headers
virtual patch

2
scripts/coccinelle/iterators/itnull.cocci
View File

@ -10,7 +10,7 @@
// Copyright: (C) 2010-2012 Nicolas Palix.
// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/iterators/list_entry_update.cocci
View File

@ -8,7 +8,7 @@
// Copyright: (C) 2010 Nicolas Palix, DIKU.
// Copyright: (C) 2010 Julia Lawall, DIKU.
// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/iterators/use_after_iter.cocci
View File

@ -10,7 +10,7 @@
// Confidence: Moderate
// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2012 Gilles Muller, INRIA/LIP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/locks/call_kern.cocci
View File

@ -8,7 +8,7 @@
// Copyright: (C) 2012 Nicolas Palix.
// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/locks/double_lock.cocci
View File

@ -7,7 +7,7 @@
// Copyright: (C) 2010 Nicolas Palix, DIKU.
// Copyright: (C) 2010 Julia Lawall, DIKU.
// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/locks/flags.cocci
View File

@ -5,7 +5,7 @@
// Copyright: (C) 2010-2012 Nicolas Palix.
// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/locks/mini_lock.cocci
View File

@ -10,7 +10,7 @@
// Copyright: (C) 2010-2012 Nicolas Palix.
// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/misc/cstptr.cocci
View File

@ -5,7 +5,7 @@
// Confidence: High
// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/misc/doubleinit.cocci
View File

@ -7,7 +7,7 @@
// Copyright: (C) 2010-2012 Nicolas Palix.
// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments: requires at least Coccinelle 0.2.4, lex or parse error otherwise
// Options: --no-includes --include-headers

2
scripts/coccinelle/misc/ifcol.cocci
View File

@ -12,7 +12,7 @@
// Copyright: (C) 2010 Nicolas Palix, DIKU.
// Copyright: (C) 2010 Julia Lawall, DIKU.
// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/misc/newline_in_nl_msg.cocci
View File

@ -5,7 +5,7 @@
///
// Confidence: Very High
// Copyright: (C) 2020 Intel Corporation
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Options: --no-includes --include-headers
virtual context

2
scripts/coccinelle/misc/noderef.cocci
View File

@ -5,7 +5,7 @@
// Confidence: High
// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/misc/orplus.cocci
View File

@ -6,7 +6,7 @@
// Confidence: Moderate
// Copyright: (C) 2013 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2013 Gilles Muller, INRIA/LIP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/misc/returnvar.cocci
View File

@ -4,7 +4,7 @@
///
// Confidence: Moderate
// Copyright: (C) 2012 Peter Senna Tschudin, INRIA/LIP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments: Comments on code can be deleted if near code that is removed.
// "when strict" can be removed to get more hits, but adds false
// positives

2
scripts/coccinelle/misc/semicolon.cocci
View File

@ -4,7 +4,7 @@
///
// Confidence: Moderate
// Copyright: (C) 2012 Peter Senna Tschudin, INRIA/LIP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments: Some false positives on empty default cases in switch statements.
// Options: --no-includes --include-headers

2
scripts/coccinelle/misc/warn.cocci
View File

@ -4,7 +4,7 @@
// Confidence: High
// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/null/badzero.cocci
View File

@ -10,7 +10,7 @@
// Confidence: High
// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Requires: 1.0.0
// Options:

2
scripts/coccinelle/null/deref_null.cocci
View File

@ -7,7 +7,7 @@
// Copyright: (C) 2010 Nicolas Palix, DIKU.
// Copyright: (C) 2010 Julia Lawall, DIKU.
// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments: -I ... -all_includes can give more complete results
// Options:

2
scripts/coccinelle/null/eno.cocci
View File

@ -5,7 +5,7 @@
// Copyright: (C) 2010-2012 Nicolas Palix.
// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.
// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/null/kmerr.cocci
View File

@ -9,7 +9,7 @@
// Copyright: (C) 2010 Nicolas Palix, DIKU.
// Copyright: (C) 2010 Julia Lawall, DIKU.
// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/tests/doublebitand.cocci
View File

@ -9,7 +9,7 @@
// Copyright: (C) 2010 Nicolas Palix, DIKU.
// Copyright: (C) 2010 Julia Lawall, DIKU.
// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/tests/doubletest.cocci
View File

@ -8,7 +8,7 @@
// Copyright: (C) 2010 Nicolas Palix, DIKU.
// Copyright: (C) 2010 Julia Lawall, DIKU.
// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Comments:
// Options: --no-includes --include-headers

2
scripts/coccinelle/tests/odd_ptr_err.cocci
View File

@ -6,7 +6,7 @@
// Confidence: High
// Copyright: (C) 2012, 2015 Julia Lawall, INRIA.
// Copyright: (C) 2012, 2015 Gilles Muller, INRIA.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Options: --no-includes --include-headers
virtual patch

2
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci
View File

@ -13,7 +13,7 @@
///
// Confidence: Average
// Copyright: (C) 2015 Andrzej Hajda, Samsung Electronics Co., Ltd.
// URL: http://coccinelle.lip6.fr/
// URL: https://coccinelle.gitlabpages.inria.fr/website
// Options: --all-includes
virtual context

21
scripts/decode_stacktrace.sh
View File

@ -45,8 +45,13 @@ else
fi
fi
declare -A cache
declare -A modcache
declare aarray_support=true
declare -A cache 2>/dev/null
if [[ $? != 0 ]]; then
aarray_support=false
else
declare -A modcache
fi
find_module() {
if [[ -n $debuginfod ]] ; then
@ -97,7 +102,7 @@ parse_symbol() {
if [[ $module == "" ]] ; then
local objfile=$vmlinux
elif [[ "${modcache[$module]+isset}" == "isset" ]]; then
elif [[ $aarray_support == true && "${modcache[$module]+isset}" == "isset" ]]; then
local objfile=${modcache[$module]}
else
local objfile=$(find_module)
@ -105,8 +110,10 @@ parse_symbol() {
echo "WARNING! Modules path isn't set, but is needed to parse this symbol" >&2
return
fi
if [[ $aarray_support == true ]]; then
modcache[$module]=$objfile
fi
fi
# Remove the englobing parenthesis
symbol=${symbol#\(}
@ -125,7 +132,7 @@ parse_symbol() {
# Use 'nm vmlinux' to figure out the base address of said symbol.
# It's actually faster to call it every time than to load it
# all into bash.
if [[ "${cache[$module,$name]+isset}" == "isset" ]]; then
if [[ $aarray_support == true && "${cache[$module,$name]+isset}" == "isset" ]]; then
local base_addr=${cache[$module,$name]}
else
local base_addr=$(nm "$objfile" 2>/dev/null | awk '$3 == "'$name'" && ($2 == "t" || $2 == "T") {print $1; exit}')
@ -133,8 +140,10 @@ parse_symbol() {
# address not found
return
fi
if [[ $aarray_support == true ]]; then
cache[$module,$name]="$base_addr"
fi
fi
# Let's start doing the math to get the exact address into the
# symbol. First, strip out the symbol total length.
local expr=${symbol%/*}
@ -149,12 +158,14 @@ parse_symbol() {
# Pass it to addr2line to get filename and line number
# Could get more than one result
if [[ "${cache[$module,$address]+isset}" == "isset" ]]; then
if [[ $aarray_support == true && "${cache[$module,$address]+isset}" == "isset" ]]; then
local code=${cache[$module,$address]}
else
local code=$(${CROSS_COMPILE}addr2line -i -e "$objfile" "$address" 2>/dev/null)
if [[ $aarray_support == true ]]; then
cache[$module,$address]=$code
fi
fi
# addr2line doesn't return a proper error code if it fails, so
# we detect it using the value it prints so that we could preserve

1
scripts/dtc/include-prefixes/arc
View File

@ -1 +0,0 @@
../../../arch/arc/boot/dts

1
scripts/dtc/include-prefixes/arm
View File

@ -1 +0,0 @@
../../../arch/arm/boot/dts

1
scripts/dtc/include-prefixes/arm64
View File

@ -1 +0,0 @@
../../../arch/arm64/boot/dts

1
scripts/dtc/include-prefixes/dt-bindings
View File

@ -1 +0,0 @@
../../../include/dt-bindings

1
scripts/dtc/include-prefixes/microblaze
View File

@ -1 +0,0 @@
../../../arch/microblaze/boot/dts

1
scripts/dtc/include-prefixes/mips
View File

@ -1 +0,0 @@
../../../arch/mips/boot/dts

1
scripts/dtc/include-prefixes/nios2
View File

@ -1 +0,0 @@
../../../arch/nios2/boot/dts

1
scripts/dtc/include-prefixes/openrisc
View File

@ -1 +0,0 @@
../../../arch/openrisc/boot/dts

1
scripts/dtc/include-prefixes/powerpc
View File

@ -1 +0,0 @@
../../../arch/powerpc/boot/dts

1
scripts/dtc/include-prefixes/sh
View File

@ -1 +0,0 @@
../../../arch/sh/boot/dts

1
scripts/dtc/include-prefixes/xtensa
View File

@ -1 +0,0 @@
../../../arch/xtensa/boot/dts

10
scripts/dummy-tools/gcc
View File

@ -59,7 +59,7 @@ fi
if arg_contain -E "$@"; then
# For scripts/cc-version.sh; This emulates GCC 20.0.0
if arg_contain - "$@"; then
sed -n '/^GCC/{s/__GNUC__/20/; s/__GNUC_MINOR__/0/; s/__GNUC_PATCHLEVEL__/0/; p;}'
sed -n '/^GCC/{s/__GNUC__/20/; s/__GNUC_MINOR__/0/; s/__GNUC_PATCHLEVEL__/0/; p;}; s/__LONG_DOUBLE_128__/1/ p'
exit 0
else
echo "no input files" >&2
@ -96,12 +96,8 @@ fi
# To set GCC_PLUGINS
if arg_contain -print-file-name=plugin "$@"; then
plugin_dir=$(mktemp -d)
mkdir -p $plugin_dir/include
touch $plugin_dir/include/plugin-version.h
echo $plugin_dir
# Use $0 to find the in-tree dummy directory
echo "$(dirname "$(readlink -f "$0")")/dummy-plugin-dir"
exit 0
fi

30
scripts/dummy-tools/nm
View File

@ -1,30 +0,0 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0-only
# Dummy script that always succeeds.
# Check if the first parameter appears in the rest. Succeeds if found.
# This helper is useful if a particular option was passed to this script.
# Typically used like this:
# arg_contain <word-you-are-searching-for> "$@"
arg_contain ()
{
search="$1"
shift
while [ $# -gt 0 ]
do
if [ "$search" = "$1" ]; then
return 0
fi
shift
done
return 1
}
if arg_contain --version "$@" || arg_contain -v "$@"; then
progname=$(basename $0)
echo "GNU $progname (scripts/dummy-tools/$progname) 2.50"
exit 0
fi

30
scripts/dummy-tools/objcopy
View File

@ -1,30 +0,0 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0-only
# Dummy script that always succeeds.
# Check if the first parameter appears in the rest. Succeeds if found.
# This helper is useful if a particular option was passed to this script.
# Typically used like this:
# arg_contain <word-you-are-searching-for> "$@"
arg_contain ()
{
search="$1"
shift
while [ $# -gt 0 ]
do
if [ "$search" = "$1" ]; then
return 0
fi
shift
done
return 1
}
if arg_contain --version "$@" || arg_contain -v "$@"; then
progname=$(basename $0)
echo "GNU $progname (scripts/dummy-tools/$progname) 2.50"
exit 0
fi

186
scripts/faddr2line
View File

@ -44,17 +44,6 @@
set -o errexit
set -o nounset
READELF="${CROSS_COMPILE:-}readelf"
ADDR2LINE="${CROSS_COMPILE:-}addr2line"
SIZE="${CROSS_COMPILE:-}size"
NM="${CROSS_COMPILE:-}nm"
command -v awk >/dev/null 2>&1 || die "awk isn't installed"
command -v ${READELF} >/dev/null 2>&1 || die "readelf isn't installed"
command -v ${ADDR2LINE} >/dev/null 2>&1 || die "addr2line isn't installed"
command -v ${SIZE} >/dev/null 2>&1 || die "size isn't installed"
command -v ${NM} >/dev/null 2>&1 || die "nm isn't installed"
usage() {
echo "usage: faddr2line [--list] <object file> <func+offset> <func+offset>..." >&2
exit 1
@ -69,6 +58,15 @@ die() {
exit 1
}
READELF="${CROSS_COMPILE:-}readelf"
ADDR2LINE="${CROSS_COMPILE:-}addr2line"
AWK="awk"
GREP="grep"
command -v ${AWK} >/dev/null 2>&1 || die "${AWK} isn't installed"
command -v ${READELF} >/dev/null 2>&1 || die "${READELF} isn't installed"
command -v ${ADDR2LINE} >/dev/null 2>&1 || die "${ADDR2LINE} isn't installed"
# Try to figure out the source directory prefix so we can remove it from the
# addr2line output. HACK ALERT: This assumes that start_kernel() is in
# init/main.c! This only works for vmlinux. Otherwise it falls back to
@ -76,7 +74,7 @@ die() {
find_dir_prefix() {
local objfile=$1
local start_kernel_addr=$(${READELF} -sW $objfile | awk '$8 == "start_kernel" {printf "0x%s", $2}')
local start_kernel_addr=$(${READELF} --symbols --wide $objfile | ${AWK} '$8 == "start_kernel" {printf "0x%s", $2}')
[[ -z $start_kernel_addr ]] && return
local file_line=$(${ADDR2LINE} -e $objfile $start_kernel_addr)
@ -97,86 +95,158 @@ __faddr2line() {
local dir_prefix=$3
local print_warnings=$4
local func=${func_addr%+*}
local offset=${func_addr#*+}
offset=${offset%/*}
local size=
[[ $func_addr =~ "/" ]] && size=${func_addr#*/}
local sym_name=${func_addr%+*}
local func_offset=${func_addr#*+}
func_offset=${func_offset%/*}
local user_size=
local file_type
local is_vmlinux=0
[[ $func_addr =~ "/" ]] && user_size=${func_addr#*/}
if [[ -z $func ]] || [[ -z $offset ]] || [[ $func = $func_addr ]]; then
if [[ -z $sym_name ]] || [[ -z $func_offset ]] || [[ $sym_name = $func_addr ]]; then
warn "bad func+offset $func_addr"
DONE=1
return
fi
# Go through each of the object's symbols which match the func name.
# In rare cases there might be duplicates.
file_end=$(${SIZE} -Ax $objfile | awk '$1 == ".text" {print $2}')
while read symbol; do
local fields=($symbol)
local sym_base=0x${fields[0]}
local sym_type=${fields[1]}
local sym_end=${fields[3]}
# vmlinux uses absolute addresses in the section table rather than
# section offsets.
local file_type=$(${READELF} --file-header $objfile |
${AWK} '$1 == "Type:" { print $2; exit }')
if [[ $file_type = "EXEC" ]] || [[ $file_type == "DYN" ]]; then
is_vmlinux=1
fi
# calculate the size
local sym_size=$(($sym_end - $sym_base))
if [[ -z $sym_size ]] || [[ $sym_size -le 0 ]]; then
warn "bad symbol size: base: $sym_base end: $sym_end"
# Go through each of the object's symbols which match the func name.
# In rare cases there might be duplicates, in which case we print all
# matches.
while read line; do
local fields=($line)
local sym_addr=0x${fields[1]}
local sym_elf_size=${fields[2]}
local sym_sec=${fields[6]}
local sec_size
local sec_name
# Get the section size:
sec_size=$(${READELF} --section-headers --wide $objfile |
sed 's/\[ /\[/' |
${AWK} -v sec=$sym_sec '$1 == "[" sec "]" { print "0x" $6; exit }')
if [[ -z $sec_size ]]; then
warn "bad section size: section: $sym_sec"
DONE=1
return
fi
# Get the section name:
sec_name=$(${READELF} --section-headers --wide $objfile |
sed 's/\[ /\[/' |
${AWK} -v sec=$sym_sec '$1 == "[" sec "]" { print $2; exit }')
if [[ -z $sec_name ]]; then
warn "bad section name: section: $sym_sec"
DONE=1
return
fi
# Calculate the symbol size.
#
# Unfortunately we can't use the ELF size, because kallsyms
# also includes the padding bytes in its size calculation. For
# kallsyms, the size calculation is the distance between the
# symbol and the next symbol in a sorted list.
local sym_size
local cur_sym_addr
local found=0
while read line; do
local fields=($line)
cur_sym_addr=0x${fields[1]}
local cur_sym_elf_size=${fields[2]}
local cur_sym_name=${fields[7]:-}
if [[ $cur_sym_addr = $sym_addr ]] &&
[[ $cur_sym_elf_size = $sym_elf_size ]] &&
[[ $cur_sym_name = $sym_name ]]; then
found=1
continue
fi
if [[ $found = 1 ]]; then
sym_size=$(($cur_sym_addr - $sym_addr))
[[ $sym_size -lt $sym_elf_size ]] && continue;
found=2
break
fi
done < <(${READELF} --symbols --wide $objfile | ${AWK} -v sec=$sym_sec '$7 == sec' | sort --key=2)
if [[ $found = 0 ]]; then
warn "can't find symbol: sym_name: $sym_name sym_sec: $sym_sec sym_addr: $sym_addr sym_elf_size: $sym_elf_size"
DONE=1
return
fi
# If nothing was found after the symbol, assume it's the last
# symbol in the section.
[[ $found = 1 ]] && sym_size=$(($sec_size - $sym_addr))
if [[ -z $sym_size ]] || [[ $sym_size -le 0 ]]; then
warn "bad symbol size: sym_addr: $sym_addr cur_sym_addr: $cur_sym_addr"
DONE=1
return
fi
sym_size=0x$(printf %x $sym_size)
# calculate the address
local addr=$(($sym_base + $offset))
# Calculate the address from user-supplied offset:
local addr=$(($sym_addr + $func_offset))
if [[ -z $addr ]] || [[ $addr = 0 ]]; then
warn "bad address: $sym_base + $offset"
warn "bad address: $sym_addr + $func_offset"
DONE=1
return
fi
addr=0x$(printf %x $addr)
# weed out non-function symbols
if [[ $sym_type != t ]] && [[ $sym_type != T ]]; then
# If the user provided a size, make sure it matches the symbol's size:
if [[ -n $user_size ]] && [[ $user_size -ne $sym_size ]]; then
[[ $print_warnings = 1 ]] &&
echo "skipping $func address at $addr due to non-function symbol of type '$sym_type'"
continue
fi
# if the user provided a size, make sure it matches the symbol's size
if [[ -n $size ]] && [[ $size -ne $sym_size ]]; then
[[ $print_warnings = 1 ]] &&
echo "skipping $func address at $addr due to size mismatch ($size != $sym_size)"
echo "skipping $sym_name address at $addr due to size mismatch ($user_size != $sym_size)"
continue;
fi
# make sure the provided offset is within the symbol's range
if [[ $offset -gt $sym_size ]]; then
# Make sure the provided offset is within the symbol's range:
if [[ $func_offset -gt $sym_size ]]; then
[[ $print_warnings = 1 ]] &&
echo "skipping $func address at $addr due to size mismatch ($offset > $sym_size)"
echo "skipping $sym_name address at $addr due to size mismatch ($func_offset > $sym_size)"
continue
fi
# separate multiple entries with a blank line
# In case of duplicates or multiple addresses specified on the
# cmdline, separate multiple entries with a blank line:
[[ $FIRST = 0 ]] && echo
FIRST=0
# pass real address to addr2line
echo "$func+$offset/$sym_size:"
local file_lines=$(${ADDR2LINE} -fpie $objfile $addr | sed "s; $dir_prefix\(\./\)*; ;")
[[ -z $file_lines ]] && return
echo "$sym_name+$func_offset/$sym_size:"
# Pass section address to addr2line and strip absolute paths
# from the output:
local args="--functions --pretty-print --inlines --exe=$objfile"
[[ $is_vmlinux = 0 ]] && args="$args --section=$sec_name"
local output=$(${ADDR2LINE} $args $addr | sed "s; $dir_prefix\(\./\)*; ;")
[[ -z $output ]] && continue
# Default output (non --list):
if [[ $LIST = 0 ]]; then
echo "$file_lines" | while read -r line
echo "$output" | while read -r line
do
echo $line
done
DONE=1;
return
continue
fi
# show each line with context
echo "$file_lines" | while read -r line
# For --list, show each line with its corresponding source code:
echo "$output" | while read -r line
do
echo
echo $line
@ -184,12 +254,12 @@ __faddr2line() {
n1=$[$n-5]
n2=$[$n+5]
f=$(echo $line | sed 's/.*at \(.\+\):.*/\1/g')
awk 'NR>=strtonum("'$n1'") && NR<=strtonum("'$n2'") { if (NR=='$n') printf(">%d<", NR); else printf(" %d ", NR); printf("\t%s\n", $0)}' $f
${AWK} 'NR>=strtonum("'$n1'") && NR<=strtonum("'$n2'") { if (NR=='$n') printf(">%d<", NR); else printf(" %d ", NR); printf("\t%s\n", $0)}' $f
done
DONE=1
done < <(${NM} -n $objfile | awk -v fn=$func -v end=$file_end '$3 == fn { found=1; line=$0; start=$1; next } found == 1 { found=0; print line, "0x"$1 } END {if (found == 1) print line, end; }')
done < <(${READELF} --symbols --wide $objfile | ${AWK} -v fn=$sym_name '$4 == "FUNC" && $8 == fn')
}
[[ $# -lt 2 ]] && usage
@ -202,6 +272,8 @@ LIST=0
[[ ! -f $objfile ]] && die "can't find objfile $objfile"
shift
${READELF} --section-headers --wide $objfile | ${GREP} -q '\.debug_info' || die "CONFIG_DEBUG_INFO not enabled"
DIR_PREFIX=supercalifragilisticexpialidocious
find_dir_prefix $objfile

38
scripts/gcc-plugins/Kconfig
View File

@ -46,44 +46,6 @@ config GCC_PLUGIN_LATENT_ENTROPY
* https://grsecurity.net/
* https://pax.grsecurity.net/
config GCC_PLUGIN_RANDSTRUCT
bool "Randomize layout of sensitive kernel structures"
select MODVERSIONS if MODULES
help
If you say Y here, the layouts of structures that are entirely
function pointers (and have not been manually annotated with
__no_randomize_layout), or structures that have been explicitly
marked with __randomize_layout, will be randomized at compile-time.
This can introduce the requirement of an additional information
exposure vulnerability for exploits targeting these structure
types.
Enabling this feature will introduce some performance impact,
slightly increase memory usage, and prevent the use of forensic
tools like Volatility against the system (unless the kernel
source tree isn't cleaned after kernel installation).
The seed used for compilation is located at
scripts/gcc-plugins/randomize_layout_seed.h. It remains after
a make clean to allow for external modules to be compiled with
the existing seed and will be removed by a make mrproper or
make distclean.
This plugin was ported from grsecurity/PaX. More information at:
* https://grsecurity.net/
* https://pax.grsecurity.net/
config GCC_PLUGIN_RANDSTRUCT_PERFORMANCE
bool "Use cacheline-aware structure randomization"
depends on GCC_PLUGIN_RANDSTRUCT
depends on !COMPILE_TEST # do not reduce test coverage
help
If you say Y here, the RANDSTRUCT randomization will make a
best effort at restricting randomization to cacheline-sized
groups of elements. It will further not randomize bitfields
in structures. This reduces the performance hit of RANDSTRUCT
at the cost of weakened randomization.
config GCC_PLUGIN_ARM_SSP_PER_TASK
bool
depends on GCC_PLUGINS && ARM

16
scripts/gcc-plugins/Makefile
View File

@ -1,12 +1,17 @@
# SPDX-License-Identifier: GPL-2.0
$(obj)/randomize_layout_plugin.so: $(objtree)/$(obj)/randomize_layout_seed.h
quiet_cmd_create_randomize_layout_seed = GENSEED $@
$(obj)/randomize_layout_plugin.so: $(obj)/randomize_layout_seed.h
quiet_cmd_create_randomize_layout_seed = SEEDHDR $@
cmd_create_randomize_layout_seed = \
$(CONFIG_SHELL) $(srctree)/$(src)/gen-random-seed.sh $@ $(objtree)/include/generated/randomize_layout_hash.h
$(objtree)/$(obj)/randomize_layout_seed.h: FORCE
SEED=$$(cat $(filter-out FORCE,$^) </dev/null); \
echo '/*' > $@; \
echo ' * This file is automatically generated. Keep it private.' >> $@; \
echo ' * Exposing this value will expose the layout of randomized structures.' >> $@; \
echo ' */' >> $@; \
echo "const char *randstruct_seed = \"$$SEED\";" >> $@
$(obj)/randomize_layout_seed.h: $(objtree)/scripts/basic/randstruct.seed FORCE
$(call if_changed,create_randomize_layout_seed)
targets += randomize_layout_seed.h randomize_layout_hash.h
targets += randomize_layout_seed.h
# Build rules for plugins
#
@ -23,6 +28,7 @@ GCC_PLUGINS_DIR = $(shell $(CC) -print-file-name=plugin)
plugin_cxxflags = -Wp,-MMD,$(depfile) $(KBUILD_HOSTCXXFLAGS) -fPIC \
-include $(srctree)/include/linux/compiler-version.h \
-DPLUGIN_VERSION=$(call stringify,$(KERNELVERSION)) \
-I $(GCC_PLUGINS_DIR)/include -I $(obj) -std=gnu++11 \
-fno-rtti -fno-exceptions -fasynchronous-unwind-tables \
-ggdb -Wno-narrowing -Wno-unused-variable \

4
scripts/gcc-plugins/latent_entropy_plugin.c
View File

@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright 2012-2016 by the PaX Team <pageexec@freemail.hu>
* Copyright 2016 by Emese Revfy <re.emese@gmail.com>
* Licensed under the GPL v2
*
* Note: the choice of the license means that the compilation process is
* NOT 'eligible' as defined by gcc's library exception to the GPL v3,
@ -82,7 +82,7 @@ __visible int plugin_is_GPL_compatible;
static GTY(()) tree latent_entropy_decl;
static struct plugin_info latent_entropy_plugin_info = {
.version = "201606141920vanilla",
.version = PLUGIN_VERSION,
.help = "disable\tturn off latent entropy instrumentation\n",
};

83
scripts/gcc-plugins/randomize_layout_plugin.c
View File

@ -34,29 +34,11 @@ __visible int plugin_is_GPL_compatible;
static int performance_mode;
static struct plugin_info randomize_layout_plugin_info = {
.version = "201402201816vanilla",
.version = PLUGIN_VERSION,
.help = "disable\t\t\tdo not activate plugin\n"
"performance-mode\tenable cacheline-aware layout randomization\n"
};
struct whitelist_entry {
const char *pathname;
const char *lhs;
const char *rhs;
};
static const struct whitelist_entry whitelist[] = {
/* NIU overloads mapping with page struct */
{ "drivers/net/ethernet/sun/niu.c", "page", "address_space" },
/* unix_skb_parms via UNIXCB() buffer */
{ "net/unix/af_unix.c", "unix_skb_parms", "char" },
/* big_key payload.data struct splashing */
{ "security/keys/big_key.c", "path", "void *" },
/* walk struct security_hook_heads as an array of struct hlist_head */
{ "security/security.c", "hlist_head", "security_hook_heads" },
{ }
};
/* from old Linux dcache.h */
static inline unsigned long
partial_name_hash(unsigned long c, unsigned long prevhash)
@ -742,60 +724,6 @@ static void handle_local_var_initializers(void)
}
}
static bool type_name_eq(gimple stmt, const_tree type_tree, const char *wanted_name)
{
const char *type_name;
if (type_tree == NULL_TREE)
return false;
switch (TREE_CODE(type_tree)) {
case RECORD_TYPE:
type_name = TYPE_NAME_POINTER(type_tree);
break;
case INTEGER_TYPE:
if (TYPE_PRECISION(type_tree) == CHAR_TYPE_SIZE)
type_name = "char";
else {
INFORM(gimple_location(stmt), "found non-char INTEGER_TYPE cast comparison: %qT\n", type_tree);
debug_tree(type_tree);
return false;
}
break;
case POINTER_TYPE:
if (TREE_CODE(TREE_TYPE(type_tree)) == VOID_TYPE) {
type_name = "void *";
break;
} else {
INFORM(gimple_location(stmt), "found non-void POINTER_TYPE cast comparison %qT\n", type_tree);
debug_tree(type_tree);
return false;
}
default:
INFORM(gimple_location(stmt), "unhandled cast comparison: %qT\n", type_tree);
debug_tree(type_tree);
return false;
}
return strcmp(type_name, wanted_name) == 0;
}
static bool whitelisted_cast(gimple stmt, const_tree lhs_tree, const_tree rhs_tree)
{
const struct whitelist_entry *entry;
expanded_location xloc = expand_location(gimple_location(stmt));
for (entry = whitelist; entry->pathname; entry++) {
if (!strstr(xloc.file, entry->pathname))
continue;
if (type_name_eq(stmt, lhs_tree, entry->lhs) && type_name_eq(stmt, rhs_tree, entry->rhs))
return true;
}
return false;
}
/*
* iterate over all statements to find "bad" casts:
* those where the address of the start of a structure is cast
@ -872,10 +800,7 @@ static unsigned int find_bad_casts_execute(void)
#ifndef __DEBUG_PLUGIN
if (lookup_attribute("randomize_performed", TYPE_ATTRIBUTES(ptr_lhs_type)))
#endif
{
if (!whitelisted_cast(stmt, ptr_lhs_type, ptr_rhs_type))
MISMATCH(gimple_location(stmt), "rhs", ptr_lhs_type, ptr_rhs_type);
}
continue;
}
@ -898,10 +823,7 @@ static unsigned int find_bad_casts_execute(void)
#ifndef __DEBUG_PLUGIN
if (lookup_attribute("randomize_performed", TYPE_ATTRIBUTES(op0_type)))
#endif
{
if (!whitelisted_cast(stmt, ptr_lhs_type, op0_type))
MISMATCH(gimple_location(stmt), "op0", ptr_lhs_type, op0_type);
}
} else {
const_tree ssa_name_var = SSA_NAME_VAR(rhs1);
/* skip bogus type casts introduced by container_of */
@ -911,11 +833,8 @@ static unsigned int find_bad_casts_execute(void)
#ifndef __DEBUG_PLUGIN
if (lookup_attribute("randomize_performed", TYPE_ATTRIBUTES(ptr_rhs_type)))
#endif
{
if (!whitelisted_cast(stmt, ptr_lhs_type, ptr_rhs_type))
MISMATCH(gimple_location(stmt), "ssa", ptr_lhs_type, ptr_rhs_type);
}
}
}
}

2
scripts/gcc-plugins/sancov_plugin.c
View File

@ -26,7 +26,7 @@ __visible int plugin_is_GPL_compatible;
tree sancov_fndecl;
static struct plugin_info sancov_plugin_info = {
.version = "20160402",
.version = PLUGIN_VERSION,
.help = "sancov plugin\n",
};

4
scripts/gcc-plugins/stackleak_plugin.c
View File

@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright 2011-2017 by the PaX Team <pageexec@freemail.hu>
* Modified by Alexander Popov <alex.popov@linux.com>
* Licensed under the GPL v2
*
* Note: the choice of the license means that the compilation process is
* NOT 'eligible' as defined by gcc's library exception to the GPL v3,
@ -44,7 +44,7 @@ static bool verbose = false;
static GTY(()) tree track_function_decl;
static struct plugin_info stackleak_plugin_info = {
.version = "201707101337",
.version = PLUGIN_VERSION,
.help = "track-min-size=nn\ttrack stack for functions with a stack frame size >= nn bytes\n"
"arch=target_arch\tspecify target build arch\n"
"disable\t\tdo not activate the plugin\n"

4
scripts/gcc-plugins/structleak_plugin.c
View File

@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright 2013-2017 by PaX Team <pageexec@freemail.hu>
* Licensed under the GPL v2
*
* Note: the choice of the license means that the compilation process is
* NOT 'eligible' as defined by gcc's library exception to the GPL v3,
@ -37,7 +37,7 @@
__visible int plugin_is_GPL_compatible;
static struct plugin_info structleak_plugin_info = {
.version = "20190125vanilla",
.version = PLUGIN_VERSION,
.help = "disable\tdo not activate plugin\n"
"byref\tinit structs passed by reference\n"
"byref-all\tinit anything passed by reference\n"

6
scripts/gdb/linux/config.py
View File

@ -24,9 +24,9 @@ class LxConfigDump(gdb.Command):
filename = arg
try:
py_config_ptr = gdb.parse_and_eval("kernel_config_data + 8")
py_config_size = gdb.parse_and_eval(
"sizeof(kernel_config_data) - 1 - 8 * 2")
py_config_ptr = gdb.parse_and_eval("&kernel_config_data")
py_config_ptr_end = gdb.parse_and_eval("&kernel_config_data_end")
py_config_size = py_config_ptr_end - py_config_ptr
except gdb.error as e:
raise gdb.GdbError("Can't find config, enable CONFIG_IKCONFIG?")

9
scripts/gdb/linux/dmesg.py
View File

@ -22,7 +22,6 @@ prb_desc_type = utils.CachedType("struct prb_desc")
prb_desc_ring_type = utils.CachedType("struct prb_desc_ring")
prb_data_ring_type = utils.CachedType("struct prb_data_ring")
printk_ringbuffer_type = utils.CachedType("struct printk_ringbuffer")
atomic_long_type = utils.CachedType("atomic_long_t")
class LxDmesg(gdb.Command):
"""Print Linux kernel log buffer."""
@ -68,8 +67,6 @@ class LxDmesg(gdb.Command):
off = prb_data_ring_type.get_type()['data'].bitpos // 8
text_data_addr = utils.read_ulong(text_data_ring, off)
counter_off = atomic_long_type.get_type()['counter'].bitpos // 8
sv_off = prb_desc_type.get_type()['state_var'].bitpos // 8
off = prb_desc_type.get_type()['text_blk_lpos'].bitpos // 8
@ -89,9 +86,9 @@ class LxDmesg(gdb.Command):
# read in tail and head descriptor ids
off = prb_desc_ring_type.get_type()['tail_id'].bitpos // 8
tail_id = utils.read_u64(desc_ring, off + counter_off)
tail_id = utils.read_atomic_long(desc_ring, off)
off = prb_desc_ring_type.get_type()['head_id'].bitpos // 8
head_id = utils.read_u64(desc_ring, off + counter_off)
head_id = utils.read_atomic_long(desc_ring, off)
did = tail_id
while True:
@ -102,7 +99,7 @@ class LxDmesg(gdb.Command):
desc = utils.read_memoryview(inf, desc_addr + desc_off, desc_sz).tobytes()
# skip non-committed record
state = 3 & (utils.read_u64(desc, sv_off + counter_off) >> desc_flags_shift)
state = 3 & (utils.read_atomic_long(desc, sv_off) >> desc_flags_shift)
if state != desc_committed and state != desc_finalized:
if did == head_id:
break

2
scripts/gdb/linux/symbols.py
View File

@ -180,7 +180,7 @@ lx-symbols command."""
self.breakpoint.delete()
self.breakpoint = None
self.breakpoint = LoadModuleBreakpoint(
"kernel/module.c:do_init_module", self)
"kernel/module/main.c:do_init_module", self)
else:
gdb.write("Note: symbol update on module loading not supported "
"with this gdb version\n")

14
scripts/gdb/linux/utils.py
View File

@ -35,13 +35,12 @@ class CachedType:
long_type = CachedType("long")
atomic_long_type = CachedType("atomic_long_t")
def get_long_type():
global long_type
return long_type.get_type()
def offset_of(typeobj, field):
element = gdb.Value(0).cast(typeobj)
return int(str(element[field].address).split()[0], 16)
@ -129,6 +128,17 @@ def read_ulong(buffer, offset):
else:
return read_u32(buffer, offset)
atomic_long_counter_offset = atomic_long_type.get_type()['counter'].bitpos
atomic_long_counter_sizeof = atomic_long_type.get_type()['counter'].type.sizeof
def read_atomic_long(buffer, offset):
global atomic_long_counter_offset
global atomic_long_counter_sizeof
if atomic_long_counter_sizeof == 8:
return read_u64(buffer, offset + atomic_long_counter_offset)
else:
return read_u32(buffer, offset + atomic_long_counter_offset)
target_arch = None

2
scripts/gdb/vmlinux-gdb.py
View File

@ -13,7 +13,7 @@
import os
sys.path.insert(0, os.path.dirname(__file__) + "/scripts/gdb")
sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)) + "/scripts/gdb")
try:
gdb.parse_and_eval("0")

21
scripts/gen_autoksyms.sh
View File

@ -2,13 +2,10 @@
# SPDX-License-Identifier: GPL-2.0-only
# Create an autoksyms.h header file from the list of all module's needed symbols
# as recorded on the second line of *.mod files and the user-provided symbol
# whitelist.
# as recorded in *.usyms files and the user-provided symbol whitelist.
set -e
output_file="$1"
# Use "make V=1" to debug this script.
case "$KBUILD_VERBOSE" in
*1*)
@ -16,6 +13,15 @@ case "$KBUILD_VERBOSE" in
;;
esac
read_modorder=
if [ "$1" = --modorder ]; then
shift
read_modorder=1
fi
output_file="$1"
needed_symbols=
# Special case for modversions (see modpost.c)
@ -41,10 +47,8 @@ cat > "$output_file" << EOT
EOT
[ -f modules.order ] && modlist=modules.order || modlist=/dev/null
{
sed 's/ko$/mod/' $modlist | xargs -n1 sed -n -e '2p'
[ -n "${read_modorder}" ] && sed 's/ko$/usyms/' modules.order | xargs cat
echo "$needed_symbols"
[ -n "$ksym_wl" ] && cat "$ksym_wl"
} | sed -e 's/ /\n/g' | sed -n -e '/^$/!p' |
@ -52,4 +56,7 @@ EOT
# point addresses.
sed -e 's/^\.//' |
sort -u |
# Ignore __this_module. It's not an exported symbol, and will be resolved
# when the final .ko's are linked.
grep -v '^__this_module$' |
sed -e 's/\(.*\)/#define __KSYM_\1 1/' >> "$output_file"

18
scripts/genksyms/genksyms.c
View File

@ -33,7 +33,7 @@ char *cur_filename;
int in_source_file;
static int flag_debug, flag_dump_defs, flag_reference, flag_dump_types,
flag_preserve, flag_warnings, flag_rel_crcs;
flag_preserve, flag_warnings;
static int errors;
static int nsyms;
@ -680,11 +680,7 @@ void export_symbol(const char *name)
if (flag_dump_defs)
fputs(">\n", debugfile);
/* Used as a linker script. */
printf(!flag_rel_crcs ? "__crc_%s = 0x%08lx;\n" :
"SECTIONS { .rodata : ALIGN(4) { "
"__crc_%s = .; LONG(0x%08lx); } }\n",
name, crc);
printf("#SYMVER %s 0x%08lx\n", name, crc);
}
}
@ -733,7 +729,6 @@ static void genksyms_usage(void)
" -q, --quiet Disable warnings (default)\n"
" -h, --help Print this message\n"
" -V, --version Print the release version\n"
" -R, --relative-crc Emit section relative symbol CRCs\n"
#else /* __GNU_LIBRARY__ */
" -s Select symbol prefix\n"
" -d Increment the debug level (repeatable)\n"
@ -745,7 +740,6 @@ static void genksyms_usage(void)
" -q Disable warnings (default)\n"
" -h Print this message\n"
" -V Print the release version\n"
" -R Emit section relative symbol CRCs\n"
#endif /* __GNU_LIBRARY__ */
, stderr);
}
@ -766,14 +760,13 @@ int main(int argc, char **argv)
{"preserve", 0, 0, 'p'},
{"version", 0, 0, 'V'},
{"help", 0, 0, 'h'},
{"relative-crc", 0, 0, 'R'},
{0, 0, 0, 0}
};
while ((o = getopt_long(argc, argv, "s:dwqVDr:T:phR",
while ((o = getopt_long(argc, argv, "s:dwqVDr:T:ph",
&long_opts[0], NULL)) != EOF)
#else /* __GNU_LIBRARY__ */
while ((o = getopt(argc, argv, "s:dwqVDr:T:phR")) != EOF)
while ((o = getopt(argc, argv, "s:dwqVDr:T:ph")) != EOF)
#endif /* __GNU_LIBRARY__ */
switch (o) {
case 'd':
@ -813,9 +806,6 @@ int main(int argc, char **argv)
case 'h':
genksyms_usage();
return 0;
case 'R':
flag_rel_crcs = 1;
break;
default:
genksyms_usage();
return 1;

4
scripts/get_abi.pl
View File

@ -981,11 +981,11 @@ __END__
=head1 NAME
abi_book.pl - parse the Linux ABI files and produce a ReST book.
get_abi.pl - parse the Linux ABI files and produce a ReST book.
=head1 SYNOPSIS
B<abi_book.pl> [--debug <level>] [--enable-lineno] [--man] [--help]
B<get_abi.pl> [--debug <level>] [--enable-lineno] [--man] [--help]
[--(no-)rst-source] [--dir=<dir>] [--show-hints]
[--search-string <regex>]
<COMMAND> [<ARGUMENT>]

2
scripts/get_feat.pl
View File

@ -1,4 +1,4 @@
#!/usr/bin/perl
#!/usr/bin/env perl
# SPDX-License-Identifier: GPL-2.0
use strict;

1
scripts/get_maintainer.pl
View File

@ -983,6 +983,7 @@ sub get_maintainers {
}
foreach my $email (@file_emails) {
$email = mailmap_email($email);
my ($name, $address) = parse_email($email);
my $tmp_email = format_email($name, $address, $email_usename);

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