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authorLinus Torvalds <torvalds@linux-foundation.org>2008-12-28 15:13:48 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2008-12-28 15:13:48 -0800
commit96faec945f39cab38403f60f515bff43660b4dab (patch)
treee6681330a42303bb34be80d347cd01ff79f5b80a
parent2926328554fa740518e2a6585b2cefb01e5f65f3 (diff)
parent9bb482476c6c9d1ae033306440c51ceac93ea80c (diff)
downloadlinux-2.6.34-ux500-96faec945f39cab38403f60f515bff43660b4dab.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next: (25 commits) allow stripping of generated symbols under CONFIG_KALLSYMS_ALL kbuild: strip generated symbols from *.ko kbuild: simplify use of genksyms kernel-doc: check for extra kernel-doc notations kbuild: add headerdep used to detect inclusion cycles in header files kbuild: fix string equality testing in tags.sh kbuild: fix make tags/cscope kbuild: fix make incompatibility kbuild: remove TAR_IGNORE setlocalversion: add git-svn support setlocalversion: print correct subversion revision scripts: improve the decodecode script scripts/package: allow custom options to rpm genksyms: allow to ignore symbol checksum changes genksyms: track symbol checksum changes tags and cscope support really belongs in a shell script kconfig: fix options to check-lxdialog.sh kbuild: gen_init_cpio expands shell variables in file names remove bashisms from scripts/extract-ikconfig kbuild: teach mkmakfile to be silent ...
-rw-r--r--Documentation/kbuild/makefiles.txt14
-rw-r--r--Makefile207
-rw-r--r--arch/blackfin/boot/Makefile2
-rw-r--r--arch/x86/scripts/strip-symbols1
-rw-r--r--init/Kconfig7
-rw-r--r--kernel/kallsyms.c16
-rw-r--r--scripts/Kbuild.include22
-rw-r--r--scripts/Makefile.build67
-rw-r--r--scripts/Makefile.lib15
-rw-r--r--scripts/Makefile.modinst3
-rwxr-xr-xscripts/decodecode32
-rwxr-xr-xscripts/extract-ikconfig8
-rw-r--r--scripts/genksyms/genksyms.c277
-rw-r--r--scripts/genksyms/genksyms.h7
-rw-r--r--scripts/genksyms/keywords.c_shipped189
-rw-r--r--scripts/genksyms/keywords.gperf2
-rwxr-xr-xscripts/headerdep.pl193
-rw-r--r--scripts/kallsyms.c21
-rw-r--r--scripts/kconfig/lxdialog/check-lxdialog.sh2
-rwxr-xr-xscripts/kernel-doc67
-rwxr-xr-xscripts/mkcompile_h6
-rw-r--r--scripts/mkmakefile4
-rw-r--r--scripts/mksysmap7
-rw-r--r--scripts/package/Makefile9
-rwxr-xr-xscripts/setlocalversion7
-rw-r--r--scripts/strip-symbols22
-rwxr-xr-xscripts/tags.sh160
-rw-r--r--usr/gen_init_cpio.c28
28 files changed, 1045 insertions, 350 deletions
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 7a7753321a2..51104f9194a 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -383,6 +383,20 @@ more details, with real examples.
to prerequisites are referenced with $(src) (because they are not
generated files).
+ $(kecho)
+ echoing information to user in a rule is often a good practice
+ but when execution "make -s" one does not expect to see any output
+ except for warnings/errors.
+ To support this kbuild define $(kecho) which will echo out the
+ text following $(kecho) to stdout except if "make -s" is used.
+
+ Example:
+ #arch/blackfin/boot/Makefile
+ $(obj)/vmImage: $(obj)/vmlinux.gz
+ $(call if_changed,uimage)
+ @$(kecho) 'Kernel: $@ is ready'
+
+
--- 3.11 $(CC) support functions
The kernel may be built with several different versions of
diff --git a/Makefile b/Makefile
index 71e98e9e6ac..09ff7d81809 100644
--- a/Makefile
+++ b/Makefile
@@ -336,7 +336,7 @@ LINUXINCLUDE := -Iinclude \
-I$(srctree)/arch/$(hdr-arch)/include \
-include include/linux/autoconf.h
-KBUILD_CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE)
+KBUILD_CPPFLAGS := -D__KERNEL__
KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
-fno-strict-aliasing -fno-common \
@@ -439,7 +439,11 @@ ifeq ($(config-targets),1)
include $(srctree)/arch/$(SRCARCH)/Makefile
export KBUILD_DEFCONFIG KBUILD_KCONFIG
-config %config: scripts_basic outputmakefile FORCE
+config: scripts_basic outputmakefile FORCE
+ $(Q)mkdir -p include/linux include/config
+ $(Q)$(MAKE) $(build)=scripts/kconfig $@
+
+%config: scripts_basic outputmakefile FORCE
$(Q)mkdir -p include/linux include/config
$(Q)$(MAKE) $(build)=scripts/kconfig $@
@@ -600,20 +604,25 @@ export INSTALL_PATH ?= /boot
MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
export MODLIB
-#
-# INSTALL_MOD_STRIP, if defined, will cause modules to be
-# stripped after they are installed. If INSTALL_MOD_STRIP is '1', then
-# the default option --strip-debug will be used. Otherwise,
-# INSTALL_MOD_STRIP will used as the options to the strip command.
+strip-symbols := $(srctree)/scripts/strip-symbols \
+ $(wildcard $(srctree)/arch/$(ARCH)/scripts/strip-symbols)
+#
+# INSTALL_MOD_STRIP, if defined, will cause modules to be stripped while
+# they get installed. If INSTALL_MOD_STRIP is '1', then the default
+# options (see below) will be used. Otherwise, INSTALL_MOD_STRIP will
+# be used as the option(s) to the objcopy command.
ifdef INSTALL_MOD_STRIP
ifeq ($(INSTALL_MOD_STRIP),1)
-mod_strip_cmd = $(STRIP) --strip-debug
+mod_strip_cmd = $(OBJCOPY) --strip-debug
+ifeq ($(CONFIG_KALLSYMS_ALL),$(CONFIG_KALLSYMS_STRIP_GENERATED))
+mod_strip_cmd += --wildcard $(addprefix --strip-symbols ,$(strip-symbols))
+endif
else
-mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)
+mod_strip_cmd = $(OBJCOPY) $(INSTALL_MOD_STRIP)
endif # INSTALL_MOD_STRIP=1
else
-mod_strip_cmd = true
+mod_strip_cmd = false
endif # INSTALL_MOD_STRIP
export mod_strip_cmd
@@ -743,6 +752,7 @@ last_kallsyms := 2
endif
kallsyms.o := .tmp_kallsyms$(last_kallsyms).o
+kallsyms.h := $(wildcard include/config/kallsyms/*.h) $(wildcard include/config/kallsyms/*/*.h)
define verify_kallsyms
$(Q)$(if $($(quiet)cmd_sysmap), \
@@ -767,24 +777,41 @@ endef
# Generate .S file with all kernel symbols
quiet_cmd_kallsyms = KSYM $@
- cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \
- $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@
+ cmd_kallsyms = { test $* -eq 0 || $(NM) -n $<; } \
+ | $(KALLSYMS) $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) >$@
-.tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE
+quiet_cmd_kstrip = STRIP $@
+ cmd_kstrip = $(OBJCOPY) --wildcard $(addprefix --strip$(if $(CONFIG_RELOCATABLE),-unneeded)-symbols ,$(filter %/scripts/strip-symbols,$^)) $< $@
+
+$(foreach n,0 1 2 3,.tmp_kallsyms$(n).o): KBUILD_AFLAGS += -Wa,--strip-local-absolute
+$(foreach n,0 1 2 3,.tmp_kallsyms$(n).o): %.o: %.S scripts FORCE
$(call if_changed_dep,as_o_S)
-.tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS)
+ifeq ($(CONFIG_KALLSYMS_STRIP_GENERATED),y)
+strip-ext := .stripped
+endif
+
+.tmp_kallsyms%.S: .tmp_vmlinux%$(strip-ext) $(KALLSYMS) $(kallsyms.h)
$(call cmd,kallsyms)
+# make -jN seems to have problems with intermediate files, see bug #3330.
+.SECONDARY: $(foreach n,1 2 3,.tmp_vmlinux$(n).stripped)
+.tmp_vmlinux%.stripped: .tmp_vmlinux% $(strip-symbols) $(kallsyms.h)
+ $(call cmd,kstrip)
+
+ifneq ($(CONFIG_DEBUG_INFO),y)
+.tmp_vmlinux%: LDFLAGS_vmlinux += -S
+endif
# .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version
-.tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE
- $(call if_changed_rule,ksym_ld)
+.tmp_vmlinux%: $(vmlinux-lds) $(vmlinux-all) FORCE
+ $(if $(filter 1,$*),$(call if_changed_rule,ksym_ld),$(call if_changed,vmlinux__))
-.tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE
- $(call if_changed,vmlinux__)
+.tmp_vmlinux0$(strip-ext):
+ $(Q)echo "placeholder" >$@
-.tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE
- $(call if_changed,vmlinux__)
+.tmp_vmlinux1: .tmp_kallsyms0.o
+.tmp_vmlinux2: .tmp_kallsyms1.o
+.tmp_vmlinux3: .tmp_kallsyms2.o
# Needs to visit scripts/ before $(KALLSYMS) can be used.
$(KALLSYMS): scripts ;
@@ -926,7 +953,7 @@ PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
# 2) Create the include2 directory, used for the second asm symlink
prepare3: include/config/kernel.release
ifneq ($(KBUILD_SRC),)
- @echo ' Using $(srctree) as source for kernel'
+ @$(kecho) ' Using $(srctree) as source for kernel'
$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
echo " $(srctree) is not clean, please run 'make mrproper'";\
echo " in the '$(srctree)' directory.";\
@@ -983,7 +1010,7 @@ endef
# directory for generated filesas used by some architectures.
define create-symlink
if [ ! -L include/asm ]; then \
- echo ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \
+ $(kecho) ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \
if [ ! -d include/asm-$(SRCARCH) ]; then \
mkdir -p include/asm-$(SRCARCH); \
fi; \
@@ -1022,6 +1049,10 @@ include/linux/version.h: $(srctree)/Makefile FORCE
include/linux/utsrelease.h: include/config/kernel.release FORCE
$(call filechk,utsrelease.h)
+PHONY += headerdep
+headerdep:
+ $(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl
+
# ---------------------------------------------------------------------------
PHONY += depend dep
@@ -1096,7 +1127,7 @@ all: modules
PHONY += modules
modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux)
$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
- @echo ' Building modules, stage 2.';
+ @$(kecho) ' Building modules, stage 2.';
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild
@@ -1270,7 +1301,8 @@ help:
@echo ' versioncheck - Sanity check on version.h usage'
@echo ' includecheck - Check for duplicate included header files'
@echo ' export_report - List the usages of all exported symbols'
- @echo ' headers_check - Sanity check on exported headers'; \
+ @echo ' headers_check - Sanity check on exported headers'
+ @echo ' headerdep - Detect inclusion cycles in headers'; \
echo ''
@echo 'Kernel packaging:'
@$(MAKE) $(build)=$(package-dir) help
@@ -1360,7 +1392,7 @@ $(module-dirs): crmodverdir $(objtree)/Module.symvers
$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
modules: $(module-dirs)
- @echo ' Building modules, stage 2.';
+ @$(kecho) ' Building modules, stage 2.';
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
PHONY += modules_install
@@ -1409,123 +1441,12 @@ endif # KBUILD_EXTMOD
# Generate tags for editors
# ---------------------------------------------------------------------------
+quiet_cmd_tags = GEN $@
+ cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@
-#We want __srctree to totally vanish out when KBUILD_OUTPUT is not set
-#(which is the most common case IMHO) to avoid unneeded clutter in the big tags file.
-#Adding $(srctree) adds about 20M on i386 to the size of the output file!
-
-ifeq ($(src),$(obj))
-__srctree =
-else
-__srctree = $(srctree)/
-endif
-
-ifeq ($(ALLSOURCE_ARCHS),)
-ifeq ($(ARCH),um)
-ALLINCLUDE_ARCHS := $(ARCH) $(SUBARCH)
-else
-ALLINCLUDE_ARCHS := $(SRCARCH)
-endif
-else
-#Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behaviour.
-ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS)
-endif
-
-ALLSOURCE_ARCHS := $(SRCARCH)
-
-define find-sources
- ( for arch in $(ALLSOURCE_ARCHS) ; do \
- find $(__srctree)arch/$${arch} $(RCS_FIND_IGNORE) \
- -wholename $(__srctree)arch/$${arch}/include/asm -type d -prune \
- -o -name $1 -print; \
- done ; \
- find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \
- -name $1 -print; \
- find $(__srctree)include $(RCS_FIND_IGNORE) \
- \( -name config -o -name 'asm-*' \) -prune \
- -o -name $1 -print; \
- for arch in $(ALLINCLUDE_ARCHS) ; do \
- test -e $(__srctree)include/asm-$${arch} && \
- find $(__srctree)include/asm-$${arch} $(RCS_FIND_IGNORE) \
- -name $1 -print; \
- test -e $(__srctree)arch/$${arch}/include/asm && \
- find $(__srctree)arch/$${arch}/include/asm $(RCS_FIND_IGNORE) \
- -name $1 -print; \
- done ; \
- find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \
- -name $1 -print; \
- find $(__srctree) $(RCS_FIND_IGNORE) \
- \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
- -name $1 -print; \
- )
-endef
-
-define all-sources
- $(call find-sources,'*.[chS]')
-endef
-define all-kconfigs
- $(call find-sources,'Kconfig*')
-endef
-define all-defconfigs
- $(call find-sources,'defconfig')
-endef
-
-define xtags
- if $1 --version 2>&1 | grep -iq exuberant; then \
- $(all-sources) | xargs $1 -a \
- -I __initdata,__exitdata,__acquires,__releases \
- -I __read_mostly,____cacheline_aligned,____cacheline_aligned_in_smp,____cacheline_internodealigned_in_smp \
- -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
- --extra=+f --c-kinds=+px \
- --regex-asm='/^ENTRY\(([^)]*)\).*/\1/'; \
- $(all-kconfigs) | xargs $1 -a \
- --langdef=kconfig \
- --language-force=kconfig \
- --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'; \
- $(all-defconfigs) | xargs -r $1 -a \
- --langdef=dotconfig \
- --language-force=dotconfig \
- --regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'; \
- elif $1 --version 2>&1 | grep -iq emacs; then \
- $(all-sources) | xargs $1 -a; \
- $(all-kconfigs) | xargs $1 -a \
- --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'; \
- $(all-defconfigs) | xargs -r $1 -a \
- --regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'; \
- else \
- $(all-sources) | xargs $1 -a; \
- fi
-endef
-
-quiet_cmd_cscope-file = FILELST cscope.files
- cmd_cscope-file = (echo \-k; echo \-q; $(all-sources)) > cscope.files
-
-quiet_cmd_cscope = MAKE cscope.out
- cmd_cscope = cscope -b -f cscope.out
-
-cscope: FORCE
- $(call cmd,cscope-file)
- $(call cmd,cscope)
-
-quiet_cmd_TAGS = MAKE $@
-define cmd_TAGS
- rm -f $@; \
- $(call xtags,etags)
-endef
-
-TAGS: FORCE
- $(call cmd,TAGS)
-
-quiet_cmd_tags = MAKE $@
-define cmd_tags
- rm -f $@; \
- $(call xtags,ctags)
-endef
-
-tags: FORCE
+tags TAGS cscope: FORCE
$(call cmd,tags)
-
# Scripts to check various things for consistency
# ---------------------------------------------------------------------------
@@ -1604,7 +1525,11 @@ endif
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
# Modules
-/ %/: prepare scripts FORCE
+/: prepare scripts FORCE
+ $(cmd_crmodverdir)
+ $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
+ $(build)=$(build-dir)
+%/: prepare scripts FORCE
$(cmd_crmodverdir)
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
$(build)=$(build-dir)
@@ -1638,7 +1563,7 @@ cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \
$(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*)
a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \
- $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \
+ $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \
$(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o)
quiet_cmd_as_o_S = AS $@
diff --git a/arch/blackfin/boot/Makefile b/arch/blackfin/boot/Makefile
index 522f3c12406..e028d13481a 100644
--- a/arch/blackfin/boot/Makefile
+++ b/arch/blackfin/boot/Makefile
@@ -25,7 +25,7 @@ $(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
$(obj)/vmImage: $(obj)/vmlinux.gz
$(call if_changed,uimage)
- @echo 'Kernel: $@ is ready'
+ @$(kecho) 'Kernel: $@ is ready'
install:
sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"
diff --git a/arch/x86/scripts/strip-symbols b/arch/x86/scripts/strip-symbols
new file mode 100644
index 00000000000..a2f1ccb827c
--- /dev/null
+++ b/arch/x86/scripts/strip-symbols
@@ -0,0 +1 @@
+__cpu_vendor_dev_X86_VENDOR_*
diff --git a/init/Kconfig b/init/Kconfig
index f291f086caa..8a63c404ef4 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -588,6 +588,13 @@ config KALLSYMS_ALL
Say N.
+config KALLSYMS_STRIP_GENERATED
+ bool "Strip machine generated symbols from kallsyms"
+ depends on KALLSYMS_ALL
+ default y
+ help
+ Say N if you want kallsyms to retain even machine generated symbols.
+
config KALLSYMS_EXTRA_PASS
bool "Do an extra kallsyms pass"
depends on KALLSYMS
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 7b8b0f21a5b..e694afa0eb8 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -30,20 +30,19 @@
#define all_var 0
#endif
-/* These will be re-linked against their real values during the second link stage */
-extern const unsigned long kallsyms_addresses[] __attribute__((weak));
-extern const u8 kallsyms_names[] __attribute__((weak));
+extern const unsigned long kallsyms_addresses[];
+extern const u8 kallsyms_names[];
/* tell the compiler that the count isn't in the small data section if the arch
* has one (eg: FRV)
*/
extern const unsigned long kallsyms_num_syms
-__attribute__((weak, section(".rodata")));
+ __attribute__((__section__(".rodata")));
-extern const u8 kallsyms_token_table[] __attribute__((weak));
-extern const u16 kallsyms_token_index[] __attribute__((weak));
+extern const u8 kallsyms_token_table[];
+extern const u16 kallsyms_token_index[];
-extern const unsigned long kallsyms_markers[] __attribute__((weak));
+extern const unsigned long kallsyms_markers[];
static inline int is_kernel_inittext(unsigned long addr)
{
@@ -168,9 +167,6 @@ static unsigned long get_symbol_pos(unsigned long addr,
unsigned long symbol_start = 0, symbol_end = 0;
unsigned long i, low, high, mid;
- /* This kernel should never had been booted. */
- BUG_ON(!kallsyms_addresses);
-
/* do a binary search on the sorted kallsyms_addresses array */
low = 0;
high = kallsyms_num_syms;
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index 982dcae7bbe..c29be8f9024 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -25,6 +25,13 @@ basetarget = $(basename $(notdir $@))
escsq = $(subst $(squote),'\$(squote)',$1)
###
+# Easy method for doing a status message
+ kecho := :
+ quiet_kecho := echo
+silent_kecho := :
+kecho := $($(quiet)kecho)
+
+###
# filechk is used to check if the content of a generated file is updated.
# Sample usage:
# define filechk_sample
@@ -39,22 +46,15 @@ escsq = $(subst $(squote),'\$(squote)',$1)
# - If they are equal no change, and no timestamp update
# - stdin is piped in from the first prerequisite ($<) so one has
# to specify a valid file as first prerequisite (often the kbuild file)
- chk_filechk = :
- quiet_chk_filechk = echo ' CHK $@'
-silent_chk_filechk = :
- upd_filechk = :
- quiet_upd_filechk = echo ' UPD $@'
-silent_upd_filechk = :
-
define filechk
$(Q)set -e; \
- $($(quiet)chk_filechk); \
+ $(kecho) ' CHK $@'; \
mkdir -p $(dir $@); \
$(filechk_$(1)) < $< > $@.tmp; \
if [ -r $@ ] && cmp -s $@ $@.tmp; then \
rm -f $@.tmp; \
else \
- $($(quiet)upd_filechk); \
+ $(kecho) ' UPD $@'; \
mv -f $@.tmp $@; \
fi
endef
@@ -144,7 +144,9 @@ ld-option = $(call try-run,\
build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
# Prefix -I with $(srctree) if it is not an absolute path.
-addtree = $(if $(filter-out -I/%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1))) $(1)
+# skip if -I has no parameter
+addtree = $(if $(patsubst -I%,%,$(1)), \
+$(if $(filter-out -I/%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1))) $(1))
# Find all -I options and call addtree
flags = $(foreach o,$($(1)),$(if $(filter -I%,$(o)),$(call addtree,$(o)),$(o)))
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 7a176773af8..5d900307de3 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -151,14 +151,20 @@ cmd_cc_i_c = $(CPP) $(c_flags) -o $@ $<
$(obj)/%.i: $(src)/%.c FORCE
$(call if_changed_dep,cc_i_c)
+cmd_genksyms = \
+ $(CPP) -D__GENKSYMS__ $(c_flags) $< | \
+ $(GENKSYMS) -T $@ -A -a $(ARCH) \
+ $(if $(KBUILD_PRESERVE),-p) \
+ $(if $(1),-r $(firstword $(wildcard $(@:.symtypes=.symref) /dev/null)))
+
quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@
-cmd_cc_symtypes_c = \
- $(CPP) -D__GENKSYMS__ $(c_flags) $< \
- | $(GENKSYMS) -T $@ >/dev/null; \
- test -s $@ || rm -f $@
+cmd_cc_symtypes_c = \
+ set -e; \
+ $(call cmd_genksyms, true) >/dev/null; \
+ test -s $@ || rm -f $@
$(obj)/%.symtypes : $(src)/%.c FORCE
- $(call if_changed_dep,cc_symtypes_c)
+ $(call cmd,cc_symtypes_c)
# C (.c) files
# The C file is compiled and updated dependency information is generated.
@@ -171,30 +177,38 @@ cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
else
# When module versioning is enabled the following steps are executed:
-# o compile a .tmp_<file>.o from <file>.c
-# o if .tmp_<file>.o doesn't contain a __ksymtab version, i.e. does
-# not export symbols, we just rename .tmp_<file>.o to <file>.o and
+# o compile a .tmp_<file>.s from <file>.c
+# o if .tmp_<file>.s doesn't contain a __ksymtab version, i.e. does
+# not export symbols, we just assemble .tmp_<file>.s to <file>.o and
# are 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 <file>.o from .tmp_<file>.o using the linker to
-# replace the unresolved symbols __crc_exported_symbol with
-# the actual value of the checksum generated by genksyms
+# that they are usable as assembly source
+# o assemble <file>.o from .tmp_<file>.s forcing inclusion of directives
+# defining the actual values of __crc_*, followed by objcopy-ing them
+# to force these symbols to be local to permit stripping them later.
+s_file = $(@D)/.tmp_$(@F:.o=.s)
+v_file = $(@D)/.tmp_$(@F:.o=.v)
+tmp_o_file = $(@D)/.tmp_$(@F)
+no_g_c_flags = $(filter-out -g%,$(c_flags))
+
+cmd_cc_o_c = $(CC) $(c_flags) -S -o $(s_file) $<
-cmd_cc_o_c = $(CC) $(c_flags) -c -o $(@D)/.tmp_$(@F) $<
cmd_modversions = \
- if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
- $(CPP) -D__GENKSYMS__ $(c_flags) $< \
- | $(GENKSYMS) $(if $(KBUILD_SYMTYPES), \
- -T $(@D)/$(@F:.o=.symtypes)) -a $(ARCH) \
- > $(@D)/.tmp_$(@F:.o=.ver); \
- \
- $(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \
- -T $(@D)/.tmp_$(@F:.o=.ver); \
- rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver); \
+ if grep -q __ksymtab $(s_file); then \
+ if $(call cmd_genksyms, $(KBUILD_SYMTYPES)) > $(v_file) \
+ && $(CC) $(no_g_c_flags) -c -Wa,$(v_file) \
+ -o $(tmp_o_file) $(s_file) \
+ && $(OBJCOPY) -L '__crc_*' -L '___crc_*' -w \
+ $(tmp_o_file) $@; \
+ then \
+ : ; \
+ else \
+ rm -f $@; exit 1; \
+ fi; \
else \
- mv -f $(@D)/.tmp_$(@F) $@; \
+ rm -f $(v_file); \
+ $(CC) $(no_g_c_flags) -c -o $@ $(s_file); \
fi;
endif
@@ -211,7 +225,12 @@ define rule_cc_o_c
$(cmd_record_mcount) \
scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,cc_o_c)' > \
$(dot-target).tmp; \
- rm -f $(depfile); \
+ if [ -r $(@D)/.tmp_$(@F:.o=.v) ]; then \
+ echo >> $(dot-target).tmp; \
+ echo '$@: $(GENKSYMS)' >> $(dot-target).tmp; \
+ echo '$(GENKSYMS):: ;' >> $(dot-target).tmp; \
+ fi; \
+ rm -f $(depfile) $(@D)/.tmp_$(@F:.o=.?); \
mv -f $(dot-target).tmp $(dot-target).cmd
endef
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index b4ca38a2115..e06365775bd 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -104,9 +104,11 @@ else
debug_flags =
endif
-orig_c_flags = $(KBUILD_CFLAGS) $(ccflags-y) $(CFLAGS_$(basetarget).o)
+orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) \
+ $(ccflags-y) $(CFLAGS_$(basetarget).o)
_c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags))
-_a_flags = $(KBUILD_AFLAGS) $(asflags-y) $(AFLAGS_$(basetarget).o)
+_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) \
+ $(asflags-y) $(AFLAGS_$(basetarget).o)
_cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
# If building the kernel in a separate objtree expand all occurrences
@@ -127,15 +129,16 @@ __a_flags = $(call flags,_a_flags)
__cpp_flags = $(call flags,_cpp_flags)
endif
-c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \
- $(__c_flags) $(modkern_cflags) \
+c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
+ $(__c_flags) $(modkern_cflags) \
-D"KBUILD_STR(s)=\#s" $(basename_flags) $(modname_flags) \
$(debug_flags)
-a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \
+a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
$(__a_flags) $(modkern_aflags)
-cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(__cpp_flags)
+cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
+ $(__cpp_flags)
ld_flags = $(LDFLAGS) $(ldflags-y)
diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index efa5d940e63..a5122dce126 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst
@@ -17,7 +17,8 @@ __modinst: $(modules)
@:
quiet_cmd_modules_install = INSTALL $@
- cmd_modules_install = mkdir -p $(2); cp $@ $(2) ; $(mod_strip_cmd) $(2)/$(notdir $@)
+ cmd_modules_install = mkdir -p $(2); \
+ $(mod_strip_cmd) $@ $(2)/$(notdir $@) || cp $@ $(2)
# Modules built outside the kernel source tree go into extra by default
INSTALL_MOD_DIR ?= extra
diff --git a/scripts/decodecode b/scripts/decodecode
index 235d3938529..4b00647814b 100755
--- a/scripts/decodecode
+++ b/scripts/decodecode
@@ -7,7 +7,7 @@
# AFLAGS=--32 decodecode < 386.oops
cleanup() {
- rm -f $T $T.s $T.o
+ rm -f $T $T.s $T.o $T.oo $T.aa $T.aaa
exit 1
}
@@ -44,21 +44,33 @@ if [ $marker -eq 0 ]; then
marker=`expr index "$code" "\("`
fi
+touch $T.oo
if [ $marker -ne 0 ]; then
- beforemark=`echo "$code" | cut -c-$((${marker} - 1))`
+ echo All code >> $T.oo
+ echo ======== >> $T.oo
+ beforemark=`echo "$code"`
echo -n " .byte 0x" > $T.s
- echo $beforemark | sed -e 's/ /,0x/g' >> $T.s
- as $AFLAGS -o $T.o $T.s
- objdump -S $T.o
- rm $T.o $T.s
+ echo $beforemark | sed -e 's/ /,0x/g' | sed -e 's/<//g' | sed -e 's/>//g' >> $T.s
+ as $AFLAGS -o $T.o $T.s &> /dev/null
+ objdump -S $T.o | grep -v "/tmp" | grep -v "Disassembly" | grep -v "\.text" | grep -v "^$" &> $T.ooo
+ cat $T.ooo >> $T.oo
+ rm -f $T.o $T.s $T.ooo
# and fix code at-and-after marker
code=`echo "$code" | cut -c$((${marker} + 1))-`
fi
-
+echo Code starting with the faulting instruction > $T.aa
+echo =========================================== >> $T.aa
code=`echo $code | sed -e 's/ [<(]/ /;s/[>)] / /;s/ /,0x/g'`
echo -n " .byte 0x" > $T.s
echo $code >> $T.s
-as $AFLAGS -o $T.o $T.s
-objdump -S $T.o
-rm $T $T.s $T.o
+as $AFLAGS -o $T.o $T.s &> /dev/null
+objdump -S $T.o | grep -v "Disassembly" | grep -v "/tmp" | grep -v "\.text" | grep -v "^$" &> $T.aaa
+cat $T.aaa >> $T.aa
+
+faultline=`cat $T.aaa | head -1 | cut -d":" -f2`
+
+cat $T.oo | sed -e "s/\($faultline\)/\*\1 <-- trapping instruction/g"
+echo
+cat $T.aa
+cleanup
diff --git a/scripts/extract-ikconfig b/scripts/extract-ikconfig
index 8187e6f0dc2..72997c353cb 100755
--- a/scripts/extract-ikconfig
+++ b/scripts/extract-ikconfig
@@ -8,8 +8,8 @@ test -e $binoffset || cc -o $binoffset ./scripts/binoffset.c || exit 1
IKCFG_ST="0x49 0x4b 0x43 0x46 0x47 0x5f 0x53 0x54"
IKCFG_ED="0x49 0x4b 0x43 0x46 0x47 0x5f 0x45 0x44"
-function dump_config {
- typeset file="$1"
+dump_config() {
+ file="$1"
start=`$binoffset $file $IKCFG_ST 2>/dev/null`
[ "$?" != "0" ] && start="-1"
@@ -18,8 +18,8 @@ function dump_config {
fi
end=`$binoffset $file $IKCFG_ED 2>/dev/null`
- let start="$start + 8"
- let size="$end - $start"
+ start=`expr $start + 8`
+ size=`expr $end - $start`
dd if="$file" ibs=1 skip="$start" count="$size" 2>/dev/null | zcat
diff --git a/scripts/genksyms/genksyms.c b/scripts/genksyms/genksyms.c
index c249274e005..f8bb4cabd62 100644
--- a/scripts/genksyms/genksyms.c
+++ b/scripts/genksyms/genksyms.c
@@ -42,7 +42,8 @@ static FILE *debugfile;
int cur_line = 1;
char *cur_filename;
-static int flag_debug, flag_dump_defs, flag_dump_types, flag_warnings;
+static int flag_debug, flag_dump_defs, flag_reference, flag_dump_types,
+ flag_preserve, flag_warnings, flag_asm;
static const char *arch = "";
static const char *mod_prefix = "";
@@ -58,6 +59,8 @@ static const char *const symbol_type_name[] = {
static int equal_list(struct string_list *a, struct string_list *b);
static void print_list(FILE * f, struct string_list *list);
+static void print_location(void);
+static void print_type_name(enum symbol_type type, const char *name);
/*----------------------------------------------------------------------*/
@@ -151,27 +154,83 @@ struct symbol *find_symbol(const char *name, enum symbol_type ns)
for (sym = symtab[h]; sym; sym = sym->hash_next)
if (map_to_ns(sym->type) == map_to_ns(ns) &&
- strcmp(name, sym->name) == 0)
+ strcmp(name, sym->name) == 0 &&
+ sym->is_declared)
break;
return sym;
}
-struct symbol *add_symbol(const char *name, enum symbol_type type,
- struct string_list *defn, int is_extern)
+static int is_unknown_symbol(struct symbol *sym)
+{
+ struct string_list *defn;
+
+ return ((sym->type == SYM_STRUCT ||
+ sym->type == SYM_UNION ||
+ sym->type == SYM_ENUM) &&
+ (defn = sym->defn) && defn->tag == SYM_NORMAL &&
+ strcmp(defn->string, "}") == 0 &&
+ (defn = defn->next) && defn->tag == SYM_NORMAL &&
+ strcmp(defn->string, "UNKNOWN") == 0 &&
+ (defn = defn->next) && defn->tag == SYM_NORMAL &&
+ strcmp(defn->string, "{") == 0);
+}
+
+struct symbol *__add_symbol(const char *name, enum symbol_type type,
+ struct string_list *defn, int is_extern,
+ int is_reference)
{
unsigned long h = crc32(name) % HASH_BUCKETS;
struct symbol *sym;
+ enum symbol_status status = STATUS_UNCHANGED;
for (sym = symtab[h]; sym; sym = sym->hash_next) {
- if (map_to_ns(sym->type) == map_to_ns(type)
- && strcmp(name, sym->name) == 0) {
- if (!equal_list(sym->defn, defn))
+ if (map_to_ns(sym->type) == map_to_ns(type) &&
+ strcmp(name, sym->name) == 0) {
+ if (is_reference)
+ /* fall through */ ;
+ else if (sym->type == type &&
+ equal_list(sym->defn, defn)) {
+ if (!sym->is_declared && sym->is_override) {
+ print_location();
+ print_type_name(type, name);
+ fprintf(stderr, " modversion is "
+ "unchanged\n");
+ }
+ sym->is_declared = 1;
+ return sym;
+ } else if (!sym->is_declared) {
+ if (sym->is_override && flag_preserve) {
+ print_location();
+ fprintf(stderr, "ignoring ");
+ print_type_name(type, name);
+ fprintf(stderr, " modversion change\n");
+ sym->is_declared = 1;
+ return sym;
+ } else {
+ status = is_unknown_symbol(sym) ?
+ STATUS_DEFINED : STATUS_MODIFIED;
+ }
+ } else {
error_with_pos("redefinition of %s", name);
- return sym;
+ return sym;
+ }
+ break;
}
}
+ if (sym) {
+ struct symbol **psym;
+
+ for (psym = &symtab[h]; *psym; psym = &(*psym)->hash_next) {
+ if (*psym == sym) {
+ *psym = sym->hash_next;
+ break;
+ }
+ }
+ --nsyms;
+ }
+
sym = xmalloc(sizeof(*sym));
sym->name = name;
sym->type = type;
@@ -183,6 +242,10 @@ struct symbol *add_symbol(const char *name, enum symbol_type type,
sym->hash_next = symtab[h];
symtab[h] = sym;
+ sym->is_declared = !is_reference;
+ sym->status = status;
+ sym->is_override = 0;
+
if (flag_debug) {
fprintf(debugfile, "Defn for %s %s == <",
symbol_type_name[type], name);
@@ -196,6 +259,18 @@ struct symbol *add_symbol(const char *name, enum symbol_type type,
return sym;
}
+struct symbol *add_symbol(const char *name, enum symbol_type type,
+ struct string_list *defn, int is_extern)
+{
+ return __add_symbol(name, type, defn, is_extern, 0);
+}
+
+struct symbol *add_reference_symbol(const char *name, enum symbol_type type,
+ struct string_list *defn, int is_extern)
+{
+ return __add_symbol(name, type, defn, is_extern, 1);
+}
+
/*----------------------------------------------------------------------*/
void free_node(struct string_list *node)
@@ -236,6 +311,90 @@ static int equal_list(struct string_list *a, struct string_list *b)
return !a && !b;
}
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+
+struct string_list *read_node(FILE *f)
+{
+ char buffer[256];
+ struct string_list node = {
+ .string = buffer,
+ .tag = SYM_NORMAL };
+ int c;
+
+ while ((c = fgetc(f)) != EOF) {
+ if (c == ' ') {
+ if (node.string == buffer)
+ continue;
+ break;
+ } else if (c == '\n') {
+ if (node.string == buffer)
+ return NULL;
+ ungetc(c, f);
+ break;
+ }
+ if (node.string >= buffer + sizeof(buffer) - 1) {
+ fprintf(stderr, "Token too long\n");
+ exit(1);
+ }
+ *node.string++ = c;
+ }
+ if (node.string == buffer)
+ return NULL;
+ *node.string = 0;
+ node.string = buffer;
+
+ if (node.string[1] == '#') {
+ int n;
+
+ for (n = 0; n < ARRAY_SIZE(symbol_type_name); n++) {
+ if (node.string[0] == symbol_type_name[n][0]) {
+ node.tag = n;
+ node.string += 2;
+ return copy_node(&node);
+ }
+ }
+ fprintf(stderr, "Unknown type %c\n", node.string[0]);
+ exit(1);
+ }
+ return copy_node(&node);
+}
+
+static void read_reference(FILE *f)
+{
+ while (!feof(f)) {
+ struct string_list *defn = NULL;
+ struct string_list *sym, *def;
+ int is_extern = 0, is_override = 0;
+ struct symbol *subsym;
+
+ sym = read_node(f);
+ if (sym && sym->tag == SYM_NORMAL &&
+ !strcmp(sym->string, "override")) {
+ is_override = 1;
+ free_node(sym);
+ sym = read_node(f);
+ }
+ if (!sym)
+ continue;
+ def = read_node(f);
+ if (def && def->tag == SYM_NORMAL &&
+ !strcmp(def->string, "extern")) {
+ is_extern = 1;
+ free_node(def);
+ def = read_node(f);
+ }
+ while (def) {
+ def->next = defn;
+ defn = def;
+ def = read_node(f);
+ }
+ subsym = add_reference_symbol(xstrdup(sym->string), sym->tag,
+ defn, is_extern);
+ subsym->is_override = is_override;
+ free_node(sym);
+ }
+}
+
static void print_node(FILE * f, struct string_list *list)
{
if (list->tag != SYM_NORMAL) {
@@ -311,6 +470,7 @@ static unsigned long expand_and_crc_sym(struct symbol *sym, unsigned long crc)
case SYM_TYPEDEF:
subsym = find_symbol(cur->string, cur->tag);
+ /* FIXME: Bad reference files can segfault here. */
if (subsym->expansion_trail) {
if (flag_dump_defs)
fprintf(debugfile, "%s ", cur->string);
@@ -347,9 +507,22 @@ static unsigned long expand_and_crc_sym(struct symbol *sym, unsigned long crc)
t = n;
n = xmalloc(sizeof(*n));
- n->string = xstrdup("{ UNKNOWN }");
+ n->string = xstrdup("{");
+ n->tag = SYM_NORMAL;
+ n->next = t;
+ t = n;
+
+ n = xmalloc(sizeof(*n));
+ n->string = xstrdup("UNKNOWN");
+ n->tag = SYM_NORMAL;
+ n->next = t;
+ t = n;
+
+ n = xmalloc(sizeof(*n));
+ n->string = xstrdup("}");
n->tag = SYM_NORMAL;
n->next = t;
+ t = n;
subsym =
add_symbol(cur->string, cur->tag, n, 0);
@@ -397,37 +570,75 @@ void export_symbol(const char *name)
error_with_pos("export undefined symbol %s", name);
else {
unsigned long crc;
+ int has_changed = 0;
if (flag_dump_defs)
fprintf(debugfile, "Export %s == <", name);
expansion_trail = (struct symbol *)-1L;
+ sym->expansion_trail = expansion_trail;
+ expansion_trail = sym;
crc = expand_and_crc_sym(sym, 0xffffffff) ^ 0xffffffff;
sym = expansion_trail;
while (sym != (struct symbol *)-1L) {
struct symbol *n = sym->expansion_trail;
+
+ if (sym->status != STATUS_UNCHANGED) {
+ if (!has_changed) {
+ print_location();
+ fprintf(stderr, "%s: %s: modversion "
+ "changed because of changes "
+ "in ", flag_preserve ? "error" :
+ "warning", name);
+ } else
+ fprintf(stderr, ", ");
+ print_type_name(sym->type, sym->name);
+ if (sym->status == STATUS_DEFINED)
+ fprintf(stderr, " (became defined)");
+ has_changed = 1;
+ if (flag_preserve)
+ errors++;
+ }
sym->expansion_trail = 0;
sym = n;
}
+ if (has_changed)
+ fprintf(stderr, "\n");
if (flag_dump_defs)
fputs(">\n", debugfile);
- /* Used as a linker script. */
- printf("%s__crc_%s = 0x%08lx ;\n", mod_prefix, name, crc);
+ /* Used as assembly source or a linker script. */
+ printf(flag_asm
+ ? ".equiv %s__crc_%s, %#08lx\n"
+ : "%s__crc_%s = %#08lx ;\n",
+ mod_prefix, name, crc);
}
}
/*----------------------------------------------------------------------*/
+
+static void print_location(void)
+{
+ fprintf(stderr, "%s:%d: ", cur_filename ? : "<stdin>", cur_line);
+}
+
+static void print_type_name(enum symbol_type type, const char *name)
+{
+ if (type != SYM_NORMAL)
+ fprintf(stderr, "%s %s", symbol_type_name[type], name);
+ else
+ fprintf(stderr, "%s", name);
+}
+
void error_with_pos(const char *fmt, ...)
{
va_list args;
if (flag_warnings) {
- fprintf(stderr, "%s:%d: ", cur_filename ? : "<stdin>",
- cur_line);
+ print_location();
va_start(args, fmt);
vfprintf(stderr, fmt, args);
@@ -440,21 +651,27 @@ void error_with_pos(const char *fmt, ...)
static void genksyms_usage(void)
{
- fputs("Usage:\n" "genksyms [-adDTwqhV] > /path/to/.tmp_obj.ver\n" "\n"
+ fputs("Usage:\n" "genksyms [-aAdDTwqhV] > /path/to/.tmp_obj.ver\n" "\n"
#ifdef __GNU_LIBRARY__
" -a, --arch Select architecture\n"
+ " -A, --asm Generate assembly rather than linker script\n"
" -d, --debug Increment the debug level (repeatable)\n"
" -D, --dump Dump expanded symbol defs (for debugging only)\n"
- " -T, --dump-types file Dump expanded types into file (for debugging only)\n"
+ " -r, --reference file Read reference symbols from a file\n"
+ " -T, --dump-types file Dump expanded types into file\n"
+ " -p, --preserve Preserve reference modversions or fail\n"
" -w, --warnings Enable warnings\n"
" -q, --quiet Disable warnings (default)\n"
" -h, --help Print this message\n"
" -V, --version Print the release version\n"
#else /* __GNU_LIBRARY__ */
" -a Select architecture\n"
+ " -A Generate assembly rather than linker script\n"
" -d Increment the debug level (repeatable)\n"
" -D Dump expanded symbol defs (for debugging only)\n"
- " -T file Dump expanded types into file (for debugging only)\n"
+ " -r file Read reference symbols from a file\n"
+ " -T file Dump expanded types into file\n"
+ " -p Preserve reference modversions or fail\n"
" -w Enable warnings\n"
" -q Disable warnings (default)\n"
" -h Print this message\n"
@@ -465,26 +682,29 @@ static void genksyms_usage(void)
int main(int argc, char **argv)
{
- FILE *dumpfile = NULL;
+ FILE *dumpfile = NULL, *ref_file = NULL;
int o;
#ifdef __GNU_LIBRARY__
struct option long_opts[] = {
{"arch", 1, 0, 'a'},
+ {"asm", 0, 0, 'A'},
{"debug", 0, 0, 'd'},
{"warnings", 0, 0, 'w'},
{"quiet", 0, 0, 'q'},
{"dump", 0, 0, 'D'},
+ {"reference", 1, 0, 'r'},
{"dump-types", 1, 0, 'T'},
+ {"preserve", 0, 0, 'p'},
{"version", 0, 0, 'V'},
{"help", 0, 0, 'h'},
{0, 0, 0, 0}
};
- while ((o = getopt_long(argc, argv, "a:dwqVDT:h",
+ while ((o = getopt_long(argc, argv, "a:dwqVADr:T:ph",
&long_opts[0], NULL)) != EOF)
#else /* __GNU_LIBRARY__ */
- while ((o = getopt(argc, argv, "a:dwqVDT:h")) != EOF)
+ while ((o = getopt(argc, argv, "a:dwqVADr:T:ph")) != EOF)
#endif /* __GNU_LIBRARY__ */
switch (o) {
case 'a':
@@ -502,9 +722,20 @@ int main(int argc, char **argv)
case 'V':
fputs("genksyms version 2.5.60\n", stderr);
break;
+ case 'A':
+ flag_asm = 1;
+ break;
case 'D':
flag_dump_defs = 1;
break;
+ case 'r':
+ flag_reference = 1;
+ ref_file = fopen(optarg, "r");
+ if (!ref_file) {
+ perror(optarg);
+ return 1;
+ }
+ break;
case 'T':
flag_dump_types = 1;
dumpfile = fopen(optarg, "w");
@@ -513,6 +744,9 @@ int main(int argc, char **argv)
return 1;
}
break;
+ case 'p':
+ flag_preserve = 1;
+ break;
case 'h':
genksyms_usage();
return 0;
@@ -533,12 +767,17 @@ int main(int argc, char **argv)
/* setlinebuf(debugfile); */
}
+ if (flag_reference)
+ read_reference(ref_file);
+
yyparse();
if (flag_dump_types && visited_symbols) {
while (visited_symbols != (struct symbol *)-1L) {
struct symbol *sym = visited_symbols;
+ if (sym->is_override)
+ fputs("override ", dumpfile);
if (sym->type != SYM_NORMAL) {
putc(symbol_type_name[sym->type][0], dumpfile);
putc('#', dumpfile);
diff --git a/scripts/genksyms/genksyms.h b/scripts/genksyms/genksyms.h
index 2668287aa49..25c4d40cefc 100644
--- a/scripts/genksyms/genksyms.h
+++ b/scripts/genksyms/genksyms.h
@@ -29,6 +29,10 @@ enum symbol_type {
SYM_NORMAL, SYM_TYPEDEF, SYM_ENUM, SYM_STRUCT, SYM_UNION
};
+enum symbol_status {
+ STATUS_UNCHANGED, STATUS_DEFINED, STATUS_MODIFIED
+};
+
struct string_list {
struct string_list *next;
enum symbol_type tag;
@@ -43,6 +47,9 @@ struct symbol {
struct symbol *expansion_trail;
struct symbol *visited;
int is_extern;
+ int is_declared;
+ enum symbol_status status;
+ int is_override;
};
typedef struct string_list **yystype;
diff --git a/scripts/genksyms/keywords.c_shipped b/scripts/genksyms/keywords.c_shipped
index 971e0113ae7..83484fe93ed 100644
--- a/scripts/genksyms/keywords.c_shipped
+++ b/scripts/genksyms/keywords.c_shipped
@@ -1,4 +1,4 @@
-/* ANSI-C code produced by gperf version 3.0.2 */
+/* ANSI-C code produced by gperf version 3.0.1 */
/* Command-line: gperf -L ANSI-C -a -C -E -g -H is_reserved_hash -k '1,3,$' -N is_reserved_word -p -t scripts/genksyms/keywords.gperf */
#if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
@@ -32,7 +32,7 @@
#line 3 "scripts/genksyms/keywords.gperf"
struct resword { const char *name; int token; };
-/* maximum key range = 62, duplicates = 0 */
+/* maximum key range = 64, duplicates = 0 */
#ifdef __GNUC__
__inline
@@ -46,32 +46,32 @@ is_reserved_hash (register const char *str, register unsigned int len)
{
static const unsigned char asso_values[] =
{
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 5,
- 65, 65, 65, 65, 65, 65, 35, 65, 65, 65,
- 0, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 0, 65, 0, 65, 5,
- 20, 15, 10, 30, 65, 15, 65, 65, 20, 0,
- 10, 35, 20, 65, 10, 5, 0, 10, 5, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
- 65, 65, 65, 65, 65, 65
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 0,
+ 67, 67, 67, 67, 67, 67, 15, 67, 67, 67,
+ 0, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 0, 67, 0, 67, 5,
+ 25, 20, 15, 30, 67, 15, 67, 67, 10, 0,
+ 10, 40, 20, 67, 10, 5, 0, 10, 15, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67, 67, 67, 67, 67,
+ 67, 67, 67, 67, 67, 67
};
return len + asso_values[(unsigned char)str[2]] + asso_values[(unsigned char)str[0]] + asso_values[(unsigned char)str[len - 1]];
}
@@ -84,116 +84,119 @@ is_reserved_word (register const char *str, register unsigned int len)
{
enum
{
- TOTAL_KEYWORDS = 43,
+ TOTAL_KEYWORDS = 45,
MIN_WORD_LENGTH = 3,
MAX_WORD_LENGTH = 24,
MIN_HASH_VALUE = 3,
- MAX_HASH_VALUE = 64
+ MAX_HASH_VALUE = 66
};
static const struct resword wordlist[] =
{
{""}, {""}, {""},
-#line 26 "scripts/genksyms/keywords.gperf"
+#line 28 "scripts/genksyms/keywords.gperf"
{"asm", ASM_KEYW},
{""},
-#line 8 "scripts/genksyms/keywords.gperf"
+#line 10 "scripts/genksyms/keywords.gperf"
{"__asm", ASM_KEYW},
{""},
-#line 9 "scripts/genksyms/keywords.gperf"
+#line 11 "scripts/genksyms/keywords.gperf"
{"__asm__", ASM_KEYW},
{""}, {""},
-#line 52 "scripts/genksyms/keywords.gperf"
+#line 54 "scripts/genksyms/keywords.gperf"
{"__typeof__", TYPEOF_KEYW},
{""},
-#line 12 "scripts/genksyms/keywords.gperf"
+#line 14 "scripts/genksyms/keywords.gperf"
{"__const", CONST_KEYW},
-#line 11 "scripts/genksyms/keywords.gperf"
- {"__attribute__", ATTRIBUTE_KEYW},
#line 13 "scripts/genksyms/keywords.gperf"
+ {"__attribute__", ATTRIBUTE_KEYW},
+#line 15 "scripts/genksyms/keywords.gperf"
{"__const__", CONST_KEYW},
-#line 18 "scripts/genksyms/keywords.gperf"
+#line 20 "scripts/genksyms/keywords.gperf"
{"__signed__", SIGNED_KEYW},
-#line 44 "scripts/genksyms/keywords.gperf"
+#line 46 "scripts/genksyms/keywords.gperf"
{"static", STATIC_KEYW},
-#line 20 "scripts/genksyms/keywords.gperf"
- {"__volatile__", VOLATILE_KEYW},
-#line 39 "scripts/genksyms/keywords.gperf"
+ {""},
+#line 41 "scripts/genksyms/keywords.gperf"
{"int", INT_KEYW},
-#line 32 "scripts/genksyms/keywords.gperf"
+#line 34 "scripts/genksyms/keywords.gperf"
{"char", CHAR_KEYW},
-#line 33 "scripts/genksyms/keywords.gperf"
+#line 35 "scripts/genksyms/keywords.gperf"
{"const", CONST_KEYW},
-#line 45 "scripts/genksyms/keywords.gperf"
+#line 47 "scripts/genksyms/keywords.gperf"
{"struct", STRUCT_KEYW},
-#line 24 "scripts/genksyms/keywords.gperf"
+#line 26 "scripts/genksyms/keywords.gperf"
{"__restrict__", RESTRICT_KEYW},
-#line 25 "scripts/genksyms/keywords.gperf"
+#line 27 "scripts/genksyms/keywords.gperf"
{"restrict", RESTRICT_KEYW},
-#line 23 "scripts/genksyms/keywords.gperf"
- {"_restrict", RESTRICT_KEYW},
-#line 16 "scripts/genksyms/keywords.gperf"
+#line 7 "scripts/genksyms/keywords.gperf"
+ {"EXPORT_SYMBOL_GPL_FUTURE", EXPORT_SYMBOL_KEYW},
+#line 18 "scripts/genksyms/keywords.gperf"
{"__inline__", INLINE_KEYW},
-#line 10 "scripts/genksyms/keywords.gperf"
- {"__attribute", ATTRIBUTE_KEYW},
{""},
-#line 14 "scripts/genksyms/keywords.gperf"
+#line 22 "scripts/genksyms/keywords.gperf"
+ {"__volatile__", VOLATILE_KEYW},
+#line 5 "scripts/genksyms/keywords.gperf"
+ {"EXPORT_SYMBOL", EXPORT_SYMBOL_KEYW},
+#line 25 "scripts/genksyms/keywords.gperf"
+ {"_restrict", RESTRICT_KEYW},
+ {""},
+#line 12 "scripts/genksyms/keywords.gperf"
+ {"__attribute", ATTRIBUTE_KEYW},
+#line 6 "scripts/genksyms/keywords.gperf"
+ {"EXPORT_SYMBOL_GPL", EXPORT_SYMBOL_KEYW},
+#line 16 "scripts/genksyms/keywords.gperf"
{"__extension__", EXTENSION_KEYW},
-#line 35 "scripts/genksyms/keywords.gperf"
+#line 37 "scripts/genksyms/keywords.gperf"
{"enum", ENUM_KEYW},
-#line 19 "scripts/genksyms/keywords.gperf"
- {"__volatile", VOLATILE_KEYW},
-#line 36 "scripts/genksyms/keywords.gperf"
+#line 8 "scripts/genksyms/keywords.gperf"
+ {"EXPORT_UNUSED_SYMBOL", EXPORT_SYMBOL_KEYW},
+#line 38 "scripts/genksyms/keywords.gperf"
{"extern", EXTERN_KEYW},
{""},
-#line 17 "scripts/genksyms/keywords.gperf"
+#line 19 "scripts/genksyms/keywords.gperf"
{"__signed", SIGNED_KEYW},
-#line 7 "scripts/genksyms/keywords.gperf"
- {"EXPORT_SYMBOL_GPL_FUTURE", EXPORT_SYMBOL_KEYW},
- {""},
-#line 51 "scripts/genksyms/keywords.gperf"
+#line 9 "scripts/genksyms/keywords.gperf"
+ {"EXPORT_UNUSED_SYMBOL_GPL", EXPORT_SYMBOL_KEYW},
+#line 49 "scripts/genksyms/keywords.gperf"
+ {"union", UNION_KEYW},
+#line 53 "scripts/genksyms/keywords.gperf"
{"typeof", TYPEOF_KEYW},
-#line 46 "scripts/genksyms/keywords.gperf"
+#line 48 "scripts/genksyms/keywords.gperf"
{"typedef", TYPEDEF_KEYW},
-#line 15 "scripts/genksyms/keywords.gperf"
+#line 17 "scripts/genksyms/keywords.gperf"
{"__inline", INLINE_KEYW},
-#line 31 "scripts/genksyms/keywords.gperf"
+#line 33 "scripts/genksyms/keywords.gperf"
{"auto", AUTO_KEYW},
-#line 47 "scripts/genksyms/keywords.gperf"
- {"union", UNION_KEYW},
- {""}, {""},
-#line 48 "scripts/genksyms/keywords.gperf"
- {"unsigned", UNSIGNED_KEYW},
-#line 49 "scripts/genksyms/keywords.gperf"
- {"void", VOID_KEYW},
-#line 42 "scripts/genksyms/keywords.gperf"
- {"short", SHORT_KEYW},
+#line 21 "scripts/genksyms/keywords.gperf"
+ {"__volatile", VOLATILE_KEYW},
{""}, {""},
#line 50 "scripts/genksyms/keywords.gperf"
- {"volatile", VOLATILE_KEYW},
- {""},
-#line 37 "scripts/genksyms/keywords.gperf"
- {"float", FLOAT_KEYW},
-#line 34 "scripts/genksyms/keywords.gperf"
- {"double", DOUBLE_KEYW},
+ {"unsigned", UNSIGNED_KEYW},
{""},
-#line 5 "scripts/genksyms/keywords.gperf"
- {"EXPORT_SYMBOL", EXPORT_SYMBOL_KEYW},
- {""}, {""},
-#line 38 "scripts/genksyms/keywords.gperf"
+#line 44 "scripts/genksyms/keywords.gperf"
+ {"short", SHORT_KEYW},
+#line 40 "scripts/genksyms/keywords.gperf"
{"inline", INLINE_KEYW},
-#line 6 "scripts/genksyms/keywords.gperf"
- {"EXPORT_SYMBOL_GPL", EXPORT_SYMBOL_KEYW},
-#line 41 "scripts/genksyms/keywords.gperf"
- {"register", REGISTER_KEYW},
{""},
-#line 22 "scripts/genksyms/keywords.gperf"
+#line 52 "scripts/genksyms/keywords.gperf"
+ {"volatile", VOLATILE_KEYW},
+#line 42 "scripts/genksyms/keywords.gperf"
+ {"long", LONG_KEYW},
+#line 24 "scripts/genksyms/keywords.gperf"
{"_Bool", BOOL_KEYW},
-#line 43 "scripts/genksyms/keywords.gperf"
- {"signed", SIGNED_KEYW},
{""}, {""},
-#line 40 "scripts/genksyms/keywords.gperf"
- {"long", LONG_KEYW}
+#line 43 "scripts/genksyms/keywords.gperf"
+ {"register", REGISTER_KEYW},
+#line 51 "scripts/genksyms/keywords.gperf"
+ {"void", VOID_KEYW},
+#line 39 "scripts/genksyms/keywords.gperf"
+ {"float", FLOAT_KEYW},
+#line 36 "scripts/genksyms/keywords.gperf"
+ {"double", DOUBLE_KEYW},
+ {""}, {""}, {""}, {""},
+#line 45 "scripts/genksyms/keywords.gperf"
+ {"signed", SIGNED_KEYW}
};
if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
diff --git a/scripts/genksyms/keywords.gperf b/scripts/genksyms/keywords.gperf
index 5ef3733225f..8abe7ab8d88 100644
--- a/scripts/genksyms/keywords.gperf
+++ b/scripts/genksyms/keywords.gperf
@@ -5,6 +5,8 @@ struct resword { const char *name; int token; }
EXPORT_SYMBOL, EXPORT_SYMBOL_KEYW
EXPORT_SYMBOL_GPL, EXPORT_SYMBOL_KEYW
EXPORT_SYMBOL_GPL_FUTURE, EXPORT_SYMBOL_KEYW
+EXPORT_UNUSED_SYMBOL, EXPORT_SYMBOL_KEYW
+EXPORT_UNUSED_SYMBOL_GPL, EXPORT_SYMBOL_KEYW
__asm, ASM_KEYW
__asm__, ASM_KEYW
__attribute, ATTRIBUTE_KEYW
diff --git a/scripts/headerdep.pl b/scripts/headerdep.pl
new file mode 100755
index 00000000000..97399da89ef
--- /dev/null
+++ b/scripts/headerdep.pl
@@ -0,0 +1,193 @@
+#! /usr/bin/perl
+#
+# Detect cycles in the header file dependency graph
+# Vegard Nossum <vegardno@ifi.uio.no>
+#
+
+use strict;
+use warnings;
+
+use Getopt::Long;
+
+my $opt_all;
+my @opt_include;
+my $opt_graph;
+
+&Getopt::Long::Configure(qw(bundling pass_through));
+&GetOptions(
+ help => \&help,
+ version => \&version,
+
+ all => \$opt_all,
+ I => \@opt_include,
+ graph => \$opt_graph,
+);
+
+push @opt_include, 'include';
+my %deps = ();
+my %linenos = ();
+
+my @headers = grep { strip($_) } @ARGV;
+
+parse_all(@headers);
+
+if($opt_graph) {
+ graph();
+} else {
+ detect_cycles(@headers);
+}
+
+
+sub help {
+ print "Usage: $0 [options] file...\n";
+ print "\n";
+ print "Options:\n";
+ print " --all\n";
+ print " --graph\n";
+ print "\n";
+ print " -I includedir\n";
+ print "\n";
+ print "To make nice graphs, try:\n";
+ print " $0 --graph include/linux/kernel.h | dot -Tpng -o graph.png\n";
+ exit;
+}
+
+sub version {
+ print "headerdep version 2\n";
+ exit;
+}
+
+# Get a file name that is relative to our include paths
+sub strip {
+ my $filename = shift;
+
+ for my $i (@opt_include) {
+ my $stripped = $filename;
+ $stripped =~ s/^$i\///;
+
+ return $stripped if $stripped ne $filename;
+ }
+
+ return $filename;
+}
+
+# Search for the file name in the list of include paths
+sub search {
+ my $filename = shift;
+ return $filename if -f $filename;
+
+ for my $i (@opt_include) {
+ my $path = "$i/$filename";
+ return $path if -f $path;
+ }
+
+ return undef;
+}
+
+sub parse_all {
+ # Parse all the headers.
+ my @queue = @_;
+ while(@queue) {
+ my $header = pop @queue;
+ next if exists $deps{$header};
+
+ $deps{$header} = [] unless exists $deps{$header};
+
+ my $path = search($header);
+ next unless $path;
+
+ open(my $file, '<', $path) or die($!);
+ chomp(my @lines = <$file>);
+ close($file);
+
+ for my $i (0 .. $#lines) {
+ my $line = $lines[$i];
+ if(my($dep) = ($line =~ m/^#\s*include\s*<(.*?)>/)) {
+ push @queue, $dep;
+ push @{$deps{$header}}, [$i + 1, $dep];
+ }
+ }
+ }
+}
+
+sub print_cycle {
+ # $cycle[n] includes $cycle[n + 1];
+ # $cycle[-1] will be the culprit
+ my $cycle = shift;
+
+ # Adjust the line numbers
+ for my $i (0 .. $#$cycle - 1) {
+ $cycle->[$i]->[0] = $cycle->[$i + 1]->[0];
+ }
+ $cycle->[-1]->[0] = 0;
+
+ my $first = shift @$cycle;
+ my $last = pop @$cycle;
+
+ my $msg = "In file included";
+ printf "%s from %s,\n", $msg, $last->[1] if defined $last;
+
+ for my $header (reverse @$cycle) {
+ printf "%s from %s:%d%s\n",
+ " " x length $msg,
+ $header->[1], $header->[0],
+ $header->[1] eq $last->[1] ? ' <-- here' : '';
+ }
+
+ printf "%s:%d: warning: recursive header inclusion\n",
+ $first->[1], $first->[0];
+}
+
+# Find and print the smallest cycle starting in the specified node.
+sub detect_cycles {
+ my @queue = map { [[0, $_]] } @_;
+ while(@queue) {
+ my $top = pop @queue;
+ my $name = $top->[-1]->[1];
+
+ for my $dep (@{$deps{$name}}) {
+ my $chain = [@$top, [$dep->[0], $dep->[1]]];
+
+ # If the dep already exists in the chain, we have a
+ # cycle...
+ if(grep { $_->[1] eq $dep->[1] } @$top) {
+ print_cycle($chain);
+ next if $opt_all;
+ return;
+ }
+
+ push @queue, $chain;
+ }
+ }
+}
+
+sub mangle {
+ $_ = shift;
+ s/\//__/g;
+ s/\./_/g;
+ s/-/_/g;
+ $_;
+}
+
+# Output dependency graph in GraphViz language.
+sub graph {
+ print "digraph {\n";
+
+ print "\t/* vertices */\n";
+ for my $header (keys %deps) {
+ printf "\t%s [label=\"%s\"];\n",
+ mangle($header), $header;
+ }
+
+ print "\n";
+
+ print "\t/* edges */\n";
+ for my $header (keys %deps) {
+ for my $dep (@{$deps{$header}}) {
+ printf "\t%s -> %s;\n",
+ mangle($header), mangle($dep->[1]);
+ }
+ }
+
+ print "}\n";
+}
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index ad2434b2697..92758120a76 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -130,18 +130,9 @@ static int read_symbol(FILE *in, struct sym_entry *s)
static int symbol_valid(struct sym_entry *s)
{
/* Symbols which vary between passes. Passes 1 and 2 must have
- * identical symbol lists. The kallsyms_* symbols below are only added
- * after pass 1, they would be included in pass 2 when --all-symbols is
- * specified so exclude them to get a stable symbol list.
+ * identical symbol lists.
*/
static char *special_symbols[] = {
- "kallsyms_addresses",
- "kallsyms_num_syms",
- "kallsyms_names",
- "kallsyms_markers",
- "kallsyms_token_table",
- "kallsyms_token_index",
-
/* Exclude linker generated symbols which vary between passes */
"_SDA_BASE_", /* ppc */
"_SDA2_BASE_", /* ppc */
@@ -173,7 +164,9 @@ static int symbol_valid(struct sym_entry *s)
}
/* Exclude symbols which vary between passes. */
- if (strstr((char *)s->sym + offset, "_compiled."))
+ if (strstr((char *)s->sym + offset, "_compiled.") ||
+ strncmp((char*)s->sym + offset, "__compound_literal.", 19) == 0 ||
+ strncmp((char*)s->sym + offset, "__compound_literal$", 19) == 0)
return 0;
for (i = 0; special_symbols[i]; i++)
@@ -550,8 +543,10 @@ int main(int argc, char **argv)
usage();
read_map(stdin);
- sort_symbols();
- optimize_token_table();
+ if (table_cnt) {
+ sort_symbols();
+ optimize_token_table();
+ }
write_src();
return 0;
diff --git a/scripts/kconfig/lxdialog/check-lxdialog.sh b/scripts/kconfig/lxdialog/check-lxdialog.sh
index 5552154cbed..fcef0f59d55 100644
--- a/scripts/kconfig/lxdialog/check-lxdialog.sh
+++ b/scripts/kconfig/lxdialog/check-lxdialog.sh
@@ -52,7 +52,7 @@ EOF
}
usage() {
- printf "Usage: $0 [-check compiler options|-header|-library]\n"
+ printf "Usage: $0 [-check compiler options|-ccflags|-ldflags compiler options]\n"
}
if [ $# -eq 0 ]; then
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index d27aad78e1d..8bb83a100ed 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -289,6 +289,8 @@ my %parameterdescs;
my @parameterlist;
my %sections;
my @sectionlist;
+my $sectcheck;
+my $struct_actual;
my $contents = "";
my $section_default = "Description"; # default section
@@ -378,10 +380,12 @@ sub dump_section {
# print STDERR "parameter def '$1' = '$contents'\n";
$name = $1;
$parameterdescs{$name} = $contents;
+ $sectcheck = $sectcheck . $name . " ";
} elsif ($name eq "@\.\.\.") {
# print STDERR "parameter def '...' = '$contents'\n";
$name = "...";
$parameterdescs{$name} = $contents;
+ $sectcheck = $sectcheck . $name . " ";
} else {
# print STDERR "other section '$name' = '$contents'\n";
if (defined($sections{$name}) && ($sections{$name} ne "")) {
@@ -1405,21 +1409,25 @@ sub dump_union($$) {
sub dump_struct($$) {
my $x = shift;
my $file = shift;
+ my $nested;
if ($x =~/(struct|union)\s+(\w+)\s*{(.*)}/) {
$declaration_name = $2;
my $members = $3;
# ignore embedded structs or unions
- $members =~ s/{.*}//g;
+ $members =~ s/({.*})//g;
+ $nested = $1;
# ignore members marked private:
$members =~ s/\/\*.*?private:.*?public:.*?\*\///gos;
$members =~ s/\/\*.*?private:.*//gos;
# strip comments:
$members =~ s/\/\*.*?\*\///gos;
+ $nested =~ s/\/\*.*?\*\///gos;
create_parameterlist($members, ';', $file);
+ check_sections($file, $declaration_name, "struct", $sectcheck, $struct_actual, $nested);
output_declaration($declaration_name,
'struct',
@@ -1505,6 +1513,14 @@ sub dump_typedef($$) {
}
}
+sub save_struct_actual($) {
+ my $actual = shift;
+
+ # strip all spaces from the actual param so that it looks like one string item
+ $actual =~ s/\s*//g;
+ $struct_actual = $struct_actual . $actual . " ";
+}
+
sub create_parameterlist($$$) {
my $args = shift;
my $splitter = shift;
@@ -1537,6 +1553,7 @@ sub create_parameterlist($$$) {
$param = $1;
$type = $arg;
$type =~ s/([^\(]+\(\*?)\s*$param/$1/;
+ save_struct_actual($param);
push_parameter($param, $type, $file);
} elsif ($arg) {
$arg =~ s/\s*:\s*/:/g;
@@ -1561,14 +1578,17 @@ sub create_parameterlist($$$) {
foreach $param (@args) {
if ($param =~ m/^(\*+)\s*(.*)/) {
+ save_struct_actual($2);
push_parameter($2, "$type $1", $file);
}
elsif ($param =~ m/(.*?):(\d+)/) {
if ($type ne "") { # skip unnamed bit-fields
+ save_struct_actual($1);
push_parameter($1, "$type:$2", $file)
}
}
else {
+ save_struct_actual($param);
push_parameter($param, $type, $file);
}
}
@@ -1634,6 +1654,46 @@ sub push_parameter($$$) {
$parametertypes{$param} = $type;
}
+sub check_sections($$$$$$) {
+ my ($file, $decl_name, $decl_type, $sectcheck, $prmscheck, $nested) = @_;
+ my @sects = split ' ', $sectcheck;
+ my @prms = split ' ', $prmscheck;
+ my $err;
+ my ($px, $sx);
+ my $prm_clean; # strip trailing "[array size]" and/or beginning "*"
+
+ foreach $sx (0 .. $#sects) {
+ $err = 1;
+ foreach $px (0 .. $#prms) {
+ $prm_clean = $prms[$px];
+ $prm_clean =~ s/\[.*\]//;
+ $prm_clean =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//;
+ ##$prm_clean =~ s/^\**//;
+ if ($prm_clean eq $sects[$sx]) {
+ $err = 0;
+ last;
+ }
+ }
+ if ($err) {
+ if ($decl_type eq "function") {
+ print STDERR "Warning(${file}:$.): " .
+ "Excess function parameter " .
+ "'$sects[$sx]' " .
+ "description in '$decl_name'\n";
+ ++$warnings;
+ } else {
+ if ($nested !~ m/\Q$sects[$sx]\E/) {
+ print STDERR "Warning(${file}:$.): " .
+ "Excess struct/union/enum/typedef member " .
+ "'$sects[$sx]' " .
+ "description in '$decl_name'\n";
+ ++$warnings;
+ }
+ }
+ }
+ }
+}
+
##
# takes a function prototype and the name of the current file being
# processed and spits out all the details stored in the global
@@ -1699,6 +1759,9 @@ sub dump_function($$) {
return;
}
+ my $prms = join " ", @parameterlist;
+ check_sections($file, $declaration_name, "function", $sectcheck, $prms, "");
+
output_declaration($declaration_name,
'function',
{'function' => $declaration_name,
@@ -1757,6 +1820,8 @@ sub reset_state {
@parameterlist = ();
%sections = ();
@sectionlist = ();
+ $sectcheck = "";
+ $struct_actual = "";
$prototype = "";
$state = 0;
diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h
index a8740df07b0..6a12dd9f118 100755
--- a/scripts/mkcompile_h
+++ b/scripts/mkcompile_h
@@ -4,6 +4,8 @@ SMP=$3
PREEMPT=$4
CC=$5
+vecho() { [ "${quiet}" = "silent_" ] || echo "$@" ; }
+
# If compile.h exists already and we don't own autoconf.h
# (i.e. we're not the same user who did make *config), don't
# modify compile.h
@@ -11,7 +13,7 @@ CC=$5
# do "compiled by root"
if [ -r $TARGET -a ! -O include/linux/autoconf.h ]; then
- echo " SKIPPED $TARGET"
+ vecho " SKIPPED $TARGET"
exit 0
fi
@@ -89,7 +91,7 @@ if [ -r $TARGET ] && \
cmp -s .tmpver.1 .tmpver.2; then
rm -f .tmpcompile
else
- echo " UPD $TARGET"
+ vecho " UPD $TARGET"
mv -f .tmpcompile $TARGET
fi
rm -f .tmpver.1 .tmpver.2
diff --git a/scripts/mkmakefile b/scripts/mkmakefile
index e65d8b33faa..67d59c7a18d 100644
--- a/scripts/mkmakefile
+++ b/scripts/mkmakefile
@@ -17,7 +17,9 @@ if test -e $2/Makefile && ! grep -q Automatically $2/Makefile
then
exit 0
fi
-echo " GEN $2/Makefile"
+if [ "${quiet}" != "silent_" ]; then
+ echo " GEN $2/Makefile"
+fi
cat << EOF > $2/Makefile
# Automatically generated by $0: don't edit
diff --git a/scripts/mksysmap b/scripts/mksysmap
index 6e133a0bae7..1db316a3712 100644
--- a/scripts/mksysmap
+++ b/scripts/mksysmap
@@ -37,9 +37,6 @@
# readprofile starts reading symbols when _stext is found, and
# continue until it finds a symbol which is not either of 'T', 't',
-# 'W' or 'w'. __crc_ are 'A' and placed in the middle
-# so we just ignore them to let readprofile continue to work.
-# (At least sparc64 has __crc_ in the middle).
-
-$NM -n $1 | grep -v '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)' > $2
+# 'W' or 'w'.
+$NM -n $1 | grep -v '\( [aNUw] \)\|\( \$[adt]\)' > $2
diff --git a/scripts/package/Makefile b/scripts/package/Makefile
index 5e326078a4a..8c6b7b09606 100644
--- a/scripts/package/Makefile
+++ b/scripts/package/Makefile
@@ -1,10 +1,6 @@
# Makefile for the different targets used to generate full packages of a kernel
# It uses the generic clean infrastructure of kbuild
-# Ignore the following files/directories during tar operation
-TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS
-
-
# RPM target
# ---------------------------------------------------------------------------
# The rpm target generates two rpm files:
@@ -47,7 +43,7 @@ rpm-pkg rpm: $(objtree)/kernel.spec FORCE
set -e; \
mv -f $(objtree)/.tmp_version $(objtree)/.version
- $(RPM) --target $(UTS_MACHINE) -ta ../$(KERNELPATH).tar.gz
+ $(RPM) $(RPMOPTS) --target $(UTS_MACHINE) -ta ../$(KERNELPATH).tar.gz
rm ../$(KERNELPATH).tar.gz
clean-files := $(objtree)/kernel.spec
@@ -64,7 +60,8 @@ binrpm-pkg: $(objtree)/binkernel.spec FORCE
set -e; \
mv -f $(objtree)/.tmp_version $(objtree)/.version
- $(RPM) --define "_builddir $(srctree)" --target $(UTS_MACHINE) -bb $<
+ $(RPM) $(RPMOPTS) --define "_builddir $(srctree)" --target \
+ $(UTS_MACHINE) -bb $<
clean-files += $(objtree)/binkernel.spec
diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index 72d233528ad..f6946cf99ce 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -19,6 +19,11 @@ if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
fi
fi
+ # Is this git on svn?
+ if git config --get svn-remote.svn.url >/dev/null; then
+ printf -- '-svn%s' "`git-svn find-rev $head`"
+ fi
+
# Are there uncommitted changes?
git update-index --refresh --unmerged > /dev/null
if git diff-index --name-only HEAD | grep -v "^scripts/package" \
@@ -51,7 +56,7 @@ if hgid=`hg id 2>/dev/null`; then
fi
# Check for svn and a svn repo.
-if rev=`svn info 2>/dev/null | grep '^Revision'`; then
+if rev=`svn info 2>/dev/null | grep '^Last Changed Rev'`; then
rev=`echo $rev | awk '{print $NF}'`
changes=`svn status 2>/dev/null | grep '^[AMD]' | wc -l`
diff --git a/scripts/strip-symbols b/scripts/strip-symbols
new file mode 100644
index 00000000000..29ee8c1a014
--- /dev/null
+++ b/scripts/strip-symbols
@@ -0,0 +1,22 @@
+<*>
+*.h
+__compound_literal[$.][0-9]*
+__crc_[a-zA-Z_]*
+__exitcall_[a-zA-Z_]*
+__func__[$.][0-9]*
+__FUNCTION__[$.][0-9]*
+gcc[0-9]_compiled[$.]
+__initcall_[a-zA-Z_]*
+__kcrctab_[a-zA-Z_]*
+__kstrtab_[a-zA-Z_]*
+__ksymtab_[a-zA-Z_]*
+__mod_[a-zA-Z_]*[0-9]
+__module_depends
+__param_[a-zA-Z_]*
+__pci_fixup_*PCI_ANY_IDPCI_ANY_ID*
+__pci_fixup_*PCI_ANY_IDPCI_DEVICE_ID_*
+__pci_fixup_*PCI_VENDOR_ID_*PCI_ANY_ID*
+__pci_fixup_*PCI_VENDOR_ID_*PCI_DEVICE_ID_*
+__PRETTY_FUNCTION__[$.][0-9]*
+__setup_[a-zA-Z_]*
+____versions
diff --git a/scripts/tags.sh b/scripts/tags.sh
new file mode 100755
index 00000000000..4e754720985
--- /dev/null
+++ b/scripts/tags.sh
@@ -0,0 +1,160 @@
+#!/bin/sh
+# Generate tags or cscope files
+# Usage tags.sh <mode>
+#
+# mode may be any of: tags, TAGS, cscope
+#
+# Uses the following environment variables:
+# ARCH, SUBARCH, srctree, src, obj
+
+if [ "$KBUILD_VERBOSE" = "1" ]; then
+ set -x
+fi
+
+# This is a duplicate of RCS_FIND_IGNORE without escaped '()'
+ignore="( -name SCCS -o -name BitKeeper -o -name .svn -o \
+ -name CVS -o -name .pc -o -name .hg -o \
+ -name .git ) \
+ -prune -o"
+
+# Do not use full path is we do not use O=.. builds
+if [ "${KBUILD_SRC}" = "" ]; then
+ tree=
+else
+ tree=${srctree}/
+fi
+
+# find sources in arch/$ARCH
+find_arch_sources()
+{
+ find ${tree}arch/$1 $ignore -name "$2" -print;
+}
+
+# find sources in arch/$1/include
+find_arch_include_sources()
+{
+ find ${tree}arch/$1/include $ignore -name "$2" -print;
+}
+
+# find sources in include/
+find_include_sources()
+{
+ find ${tree}include $ignore -name config -prune -o -name "$1" -print;
+}
+
+# find sources in rest of tree
+# we could benefit from a list of dirs to search in here
+find_other_sources()
+{
+ find ${tree}* $ignore \
+ \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
+ -name "$1" -print;
+}
+
+find_sources()
+{
+ find_arch_sources $1 "$2"
+ find_include_sources "$2"
+ find_other_sources "$2"
+}
+
+all_sources()
+{
+ find_sources $SRCARCH '*.[chS]'
+ if [ ! -z "$archinclude" ]; then
+ find_arch_include_sources $archinclude '*.[chS]'
+ fi
+}
+
+all_kconfigs()
+{
+ find_sources $SRCARCH 'Kconfig*'
+}
+
+all_defconfigs()
+{
+ find_sources $SRCARCH "defconfig"
+}
+
+docscope()
+{
+ (echo \-k; echo \-q; all_sources) > cscope.files
+ cscope -b -f cscope.out
+}
+
+exuberant()
+{
+ all_sources > all
+ all_sources | xargs $1 -a \
+ -I __initdata,__exitdata,__acquires,__releases \
+ -I __read_mostly,____cacheline_aligned \
+ -I ____cacheline_aligned_in_smp \
+ -I ____cacheline_internodealigned_in_smp \
+ -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
+ --extra=+f --c-kinds=+px \
+ --regex-asm='/^ENTRY\(([^)]*)\).*/\1/'
+
+ all_kconfigs | xargs $1 -a \
+ --langdef=kconfig --language-force=kconfig \
+ --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'
+
+ all_kconfigs | xargs $1 -a \
+ --langdef=kconfig --language-force=kconfig \
+ --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/CONFIG_\2/'
+
+ all_defconfigs | xargs -r $1 -a \
+ --langdef=dotconfig --language-force=dotconfig \
+ --regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'
+
+}
+
+emacs()
+{
+ all_sources | xargs $1 -a
+
+ all_kconfigs | xargs $1 -a \
+ --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'
+
+ all_kconfigs | xargs $1 -a \
+ --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/CONFIG_\3/'
+
+ all_defconfigs | xargs -r $1 -a \
+ --regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'
+}
+
+xtags()
+{
+ if $1 --version 2>&1 | grep -iq exuberant; then
+ exuberant $1
+ elif $1 --version 2>&1 | grep -iq emacs; then
+ emacs $1
+ else
+ all_sources | xargs $1 -a
+ fi
+}
+
+
+# Support um (which uses SUBARCH)
+if [ "${ARCH}" = "um" ]; then
+ if [ "$SUBARCH" = "i386" ]; then
+ archinclude=x86
+ elif [ "$SUBARCH" = "x86_64" ]; then
+ archinclude=x86
+ else
+ archinclude=${SUBARCH}
+ fi
+fi
+
+case "$1" in
+ "cscope")
+ docscope
+ ;;
+
+ "tags")
+ xtags ctags
+ ;;
+
+ "TAGS")
+ xtags etags
+ ;;
+esac
diff --git a/usr/gen_init_cpio.c b/usr/gen_init_cpio.c
index 7abc07f0fcd..f1d3fe34176 100644
--- a/usr/gen_init_cpio.c
+++ b/usr/gen_init_cpio.c
@@ -370,6 +370,30 @@ error:
return rc;
}
+static char *cpio_replace_env(char *new_location)
+{
+ char expanded[PATH_MAX + 1];
+ char env_var[PATH_MAX + 1];
+ char *start;
+ char *end;
+
+ for (start = NULL; (start = strstr(new_location, "${")); ) {
+ end = strchr(start, '}');
+ if (start < end) {
+ *env_var = *expanded = '\0';
+ strncat(env_var, start + 2, end - start - 2);
+ strncat(expanded, new_location, start - new_location);
+ strncat(expanded, getenv(env_var), PATH_MAX);
+ strncat(expanded, end + 1, PATH_MAX);
+ strncpy(new_location, expanded, PATH_MAX);
+ } else
+ break;
+ }
+
+ return new_location;
+}
+
+
static int cpio_mkfile_line(const char *line)
{
char name[PATH_MAX + 1];
@@ -415,7 +439,8 @@ static int cpio_mkfile_line(const char *line)
} else {
dname = name;
}
- rc = cpio_mkfile(dname, location, mode, uid, gid, nlinks);
+ rc = cpio_mkfile(dname, cpio_replace_env(location),
+ mode, uid, gid, nlinks);
fail:
if (dname_len) free(dname);
return rc;
@@ -439,6 +464,7 @@ void usage(const char *prog)
"\n"
"<name> name of the file/dir/nod/etc in the archive\n"
"<location> location of the file in the current filesystem\n"
+ " expands shell variables quoted with ${}\n"
"<target> link target\n"
"<mode> mode/permissions of the file\n"
"<uid> user id (0=root)\n"