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提交 2034563c 编写于 作者: L Linus Torvalds
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes 

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
  kbuild: fix kbuild.txt typos
  kbuild: print usage with no arguments in scripts/config
  Revert "kbuild: strip generated symbols from *.ko"
上级 924d26df df291fa9
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Documentation/kbuild/kbuild.txt
浏览文件 @ 2034563c
...@@ -3,7 +3,7 @@ Environment variables ...@@ -3,7 +3,7 @@ Environment variables
KCPPFLAGS KCPPFLAGS
-------------------------------------------------- --------------------------------------------------
Additional options to pass when preprocessing. The preprocessing options Additional options to pass when preprocessing. The preprocessing options
will be used in all cases where kbuild do preprocessing including will be used in all cases where kbuild does preprocessing including
building C files and assembler files. building C files and assembler files.
KAFLAGS KAFLAGS
...@@ -16,7 +16,7 @@ Additional options to the C compiler. ...@@ -16,7 +16,7 @@ Additional options to the C compiler.
KBUILD_VERBOSE KBUILD_VERBOSE
-------------------------------------------------- --------------------------------------------------
Set the kbuild verbosity. Can be assinged same values as "V=...". Set the kbuild verbosity. Can be assigned same values as "V=...".
See make help for the full list. See make help for the full list.
Setting "V=..." takes precedence over KBUILD_VERBOSE. Setting "V=..." takes precedence over KBUILD_VERBOSE.
...@@ -35,14 +35,14 @@ KBUILD_OUTPUT ...@@ -35,14 +35,14 @@ KBUILD_OUTPUT
-------------------------------------------------- --------------------------------------------------
Specify the output directory when building the kernel. Specify the output directory when building the kernel.
The output directory can also be specificed using "O=...". The output directory can also be specificed using "O=...".
Setting "O=..." takes precedence over KBUILD_OUTPUT Setting "O=..." takes precedence over KBUILD_OUTPUT.
ARCH ARCH
-------------------------------------------------- --------------------------------------------------
Set ARCH to the architecture to be built. Set ARCH to the architecture to be built.
In most cases the name of the architecture is the same as the In most cases the name of the architecture is the same as the
directory name found in the arch/ directory. directory name found in the arch/ directory.
But some architectures suach as x86 and sparc has aliases. But some architectures such as x86 and sparc have aliases.
x86: i386 for 32 bit, x86_64 for 64 bit x86: i386 for 32 bit, x86_64 for 64 bit
sparc: sparc for 32 bit, sparc64 for 64 bit sparc: sparc for 32 bit, sparc64 for 64 bit
...@@ -63,7 +63,7 @@ CF is often used on the command-line like this: ...@@ -63,7 +63,7 @@ CF is often used on the command-line like this:
INSTALL_PATH INSTALL_PATH
-------------------------------------------------- --------------------------------------------------
INSTALL_PATH specifies where to place the updated kernel and system map INSTALL_PATH specifies where to place the updated kernel and system map
images. Default is /boot, but you can set it to other values images. Default is /boot, but you can set it to other values.
MODLIB MODLIB
...@@ -90,7 +90,7 @@ INSTALL_MOD_STRIP will used as the options to the strip command. ...@@ -90,7 +90,7 @@ INSTALL_MOD_STRIP will used as the options to the strip command.
INSTALL_FW_PATH INSTALL_FW_PATH
-------------------------------------------------- --------------------------------------------------
INSTALL_FW_PATH specify where to install the firmware blobs. INSTALL_FW_PATH specifies where to install the firmware blobs.
The default value is: The default value is:
$(INSTALL_MOD_PATH)/lib/firmware $(INSTALL_MOD_PATH)/lib/firmware
...@@ -99,7 +99,7 @@ The value can be overridden in which case the default value is ignored. ...@@ -99,7 +99,7 @@ The value can be overridden in which case the default value is ignored.
INSTALL_HDR_PATH INSTALL_HDR_PATH
-------------------------------------------------- --------------------------------------------------
INSTALL_HDR_PATH specify where to install user space headers when INSTALL_HDR_PATH specifies where to install user space headers when
executing "make headers_*". executing "make headers_*".
The default value is: The default value is:
...@@ -112,22 +112,23 @@ The value can be overridden in which case the default value is ignored. ...@@ -112,22 +112,23 @@ The value can be overridden in which case the default value is ignored.
KBUILD_MODPOST_WARN KBUILD_MODPOST_WARN
-------------------------------------------------- --------------------------------------------------
KBUILD_MODPOST_WARN can be set to avoid error out in case of undefined KBUILD_MODPOST_WARN can be set to avoid errors in case of undefined
symbols in the final module linking stage. symbols in the final module linking stage. It changes such errors
into warnings.
KBUILD_MODPOST_FINAL KBUILD_MODPOST_NOFINAL
-------------------------------------------------- --------------------------------------------------
KBUILD_MODPOST_NOFINAL can be set to skip the final link of modules. KBUILD_MODPOST_NOFINAL can be set to skip the final link of modules.
This is solely usefull to speed up test compiles. This is solely useful to speed up test compiles.
KBUILD_EXTRA_SYMBOLS KBUILD_EXTRA_SYMBOLS
-------------------------------------------------- --------------------------------------------------
For modules use symbols from another modules. For modules that use symbols from other modules.
See more details in modules.txt. See more details in modules.txt.
ALLSOURCE_ARCHS ALLSOURCE_ARCHS
-------------------------------------------------- --------------------------------------------------
For tags/TAGS/cscope targets, you can specify more than one archs For tags/TAGS/cscope targets, you can specify more than one arch
to be included in the databases, separated by blankspace. e.g. to be included in the databases, separated by blank space. E.g.:
$ make ALLSOURCE_ARCHS="x86 mips arm" tags $ make ALLSOURCE_ARCHS="x86 mips arm" tags
Makefile
浏览文件 @ 2034563c
...@@ -610,25 +610,20 @@ export INSTALL_PATH ?= /boot ...@@ -610,25 +610,20 @@ export INSTALL_PATH ?= /boot
MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
export MODLIB export MODLIB
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 # INSTALL_MOD_STRIP, if defined, will cause modules to be
# they get installed. If INSTALL_MOD_STRIP is '1', then the default # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then
# options (see below) will be used. Otherwise, INSTALL_MOD_STRIP will # the default option --strip-debug will be used. Otherwise,
# be used as the option(s) to the objcopy command. # INSTALL_MOD_STRIP will used as the options to the strip command.
ifdef INSTALL_MOD_STRIP ifdef INSTALL_MOD_STRIP
ifeq ($(INSTALL_MOD_STRIP),1) ifeq ($(INSTALL_MOD_STRIP),1)
mod_strip_cmd = $(OBJCOPY) --strip-debug mod_strip_cmd = $(STRIP) --strip-debug
ifeq ($(CONFIG_KALLSYMS_ALL),$(CONFIG_KALLSYMS_STRIP_GENERATED))
mod_strip_cmd += --wildcard $(addprefix --strip-symbols ,$(strip-symbols))
endif
else else
mod_strip_cmd = $(OBJCOPY) $(INSTALL_MOD_STRIP) mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)
endif # INSTALL_MOD_STRIP=1 endif # INSTALL_MOD_STRIP=1
else else
mod_strip_cmd = false mod_strip_cmd = true
endif # INSTALL_MOD_STRIP endif # INSTALL_MOD_STRIP
export mod_strip_cmd export mod_strip_cmd
...@@ -758,7 +753,6 @@ last_kallsyms := 2 ...@@ -758,7 +753,6 @@ last_kallsyms := 2
endif endif
kallsyms.o := .tmp_kallsyms$(last_kallsyms).o kallsyms.o := .tmp_kallsyms$(last_kallsyms).o
kallsyms.h := $(wildcard include/config/kallsyms/*.h) $(wildcard include/config/kallsyms/*/*.h)
define verify_kallsyms define verify_kallsyms
$(Q)$(if $($(quiet)cmd_sysmap), \ $(Q)$(if $($(quiet)cmd_sysmap), \
...@@ -783,41 +777,24 @@ endef ...@@ -783,41 +777,24 @@ endef
# Generate .S file with all kernel symbols # Generate .S file with all kernel symbols
quiet_cmd_kallsyms = KSYM $@ quiet_cmd_kallsyms = KSYM $@
cmd_kallsyms = { test $* -eq 0 || $(NM) -n $<; } \ cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \
| $(KALLSYMS) $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) >$@ $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@
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 .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE
$(foreach n,0 1 2 3,.tmp_kallsyms$(n).o): %.o: %.S scripts FORCE
$(call if_changed_dep,as_o_S) $(call if_changed_dep,as_o_S)
ifeq ($(CONFIG_KALLSYMS_STRIP_GENERATED),y) .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS)
strip-ext := .stripped
endif
.tmp_kallsyms%.S: .tmp_vmlinux%$(strip-ext) $(KALLSYMS) $(kallsyms.h)
$(call cmd,kallsyms) $(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 must be complete except kallsyms, so update vmlinux version
.tmp_vmlinux%: $(vmlinux-lds) $(vmlinux-all) FORCE .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE
$(if $(filter 1,$*),$(call if_changed_rule,ksym_ld),$(call if_changed,vmlinux__)) $(call if_changed_rule,ksym_ld)
.tmp_vmlinux0$(strip-ext): .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE
$(Q)echo "placeholder" >$@ $(call if_changed,vmlinux__)
.tmp_vmlinux1: .tmp_kallsyms0.o .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE
.tmp_vmlinux2: .tmp_kallsyms1.o $(call if_changed,vmlinux__)
.tmp_vmlinux3: .tmp_kallsyms2.o
# Needs to visit scripts/ before $(KALLSYMS) can be used. # Needs to visit scripts/ before $(KALLSYMS) can be used.
$(KALLSYMS): scripts ; $(KALLSYMS): scripts ;
......
init/Kconfig
浏览文件 @ 2034563c
...@@ -725,13 +725,6 @@ config KALLSYMS_ALL ...@@ -725,13 +725,6 @@ config KALLSYMS_ALL
Say N. 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 config KALLSYMS_EXTRA_PASS
bool "Do an extra kallsyms pass" bool "Do an extra kallsyms pass"
depends on KALLSYMS depends on KALLSYMS
......
kernel/kallsyms.c
浏览文件 @ 2034563c
...@@ -30,19 +30,20 @@ ...@@ -30,19 +30,20 @@
#define all_var 0 #define all_var 0
#endif #endif
extern const unsigned long kallsyms_addresses[]; /* These will be re-linked against their real values during the second link stage */
extern const u8 kallsyms_names[]; extern const unsigned long kallsyms_addresses[] __attribute__((weak));
extern const u8 kallsyms_names[] __attribute__((weak));
/* tell the compiler that the count isn't in the small data section if the arch /* tell the compiler that the count isn't in the small data section if the arch
* has one (eg: FRV) * has one (eg: FRV)
*/ */
extern const unsigned long kallsyms_num_syms extern const unsigned long kallsyms_num_syms
__attribute__((__section__(".rodata"))); __attribute__((weak, section(".rodata")));
extern const u8 kallsyms_token_table[]; extern const u8 kallsyms_token_table[] __attribute__((weak));
extern const u16 kallsyms_token_index[]; extern const u16 kallsyms_token_index[] __attribute__((weak));
extern const unsigned long kallsyms_markers[]; extern const unsigned long kallsyms_markers[] __attribute__((weak));
static inline int is_kernel_inittext(unsigned long addr) static inline int is_kernel_inittext(unsigned long addr)
{ {
...@@ -167,6 +168,9 @@ static unsigned long get_symbol_pos(unsigned long addr, ...@@ -167,6 +168,9 @@ static unsigned long get_symbol_pos(unsigned long addr,
unsigned long symbol_start = 0, symbol_end = 0; unsigned long symbol_start = 0, symbol_end = 0;
unsigned long i, low, high, mid; 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 */ /* do a binary search on the sorted kallsyms_addresses array */
low = 0; low = 0;
high = kallsyms_num_syms; high = kallsyms_num_syms;
......
scripts/Makefile.build
浏览文件 @ 2034563c
...@@ -151,16 +151,16 @@ cmd_cc_i_c = $(CPP) $(c_flags) -o $@ $< ...@@ -151,16 +151,16 @@ cmd_cc_i_c = $(CPP) $(c_flags) -o $@ $<
$(obj)/%.i: $(src)/%.c FORCE $(obj)/%.i: $(src)/%.c FORCE
$(call if_changed_dep,cc_i_c) $(call if_changed_dep,cc_i_c)
cmd_genksyms = \ cmd_gensymtypes = \
$(CPP) -D__GENKSYMS__ $(c_flags) $< | \ $(CPP) -D__GENKSYMS__ $(c_flags) $< | \
$(GENKSYMS) -T $@ -A -a $(ARCH) \ $(GENKSYMS) -T $@ -a $(ARCH) \
$(if $(KBUILD_PRESERVE),-p) \ $(if $(KBUILD_PRESERVE),-p) \
$(if $(1),-r $(firstword $(wildcard $(@:.symtypes=.symref) /dev/null))) $(if $(1),-r $(firstword $(wildcard $(@:.symtypes=.symref) /dev/null)))
quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@ quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@
cmd_cc_symtypes_c = \ cmd_cc_symtypes_c = \
set -e; \ set -e; \
$(call cmd_genksyms, true) >/dev/null; \ $(call cmd_gensymtypes, true) >/dev/null; \
test -s $@ || rm -f $@ test -s $@ || rm -f $@
$(obj)/%.symtypes : $(src)/%.c FORCE $(obj)/%.symtypes : $(src)/%.c FORCE
...@@ -177,38 +177,28 @@ cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< ...@@ -177,38 +177,28 @@ cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
else else
# When module versioning is enabled the following steps are executed: # When module versioning is enabled the following steps are executed:
# o compile a .tmp_<file>.s from <file>.c # o compile a .tmp_<file>.o from <file>.c
# o if .tmp_<file>.s doesn't contain a __ksymtab version, i.e. does # o if .tmp_<file>.o doesn't contain a __ksymtab version, i.e. does
# not export symbols, we just assemble .tmp_<file>.s to <file>.o and # not export symbols, we just rename .tmp_<file>.o to <file>.o and
# are done. # are done.
# o otherwise, we calculate symbol versions using the good old # o otherwise, we calculate symbol versions using the good old
# genksyms on the preprocessed source and postprocess them in a way # genksyms on the preprocessed source and postprocess them in a way
# that they are usable as assembly source # that they are usable as a linker script
# o assemble <file>.o from .tmp_<file>.s forcing inclusion of directives # o generate <file>.o from .tmp_<file>.o using the linker to
# defining the actual values of __crc_*, followed by objcopy-ing them # replace the unresolved symbols __crc_exported_symbol with
# to force these symbols to be local to permit stripping them later. # the actual value of the checksum generated by genksyms
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 = \ cmd_modversions = \
if grep -q __ksymtab $(s_file); then \ if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
if $(call cmd_genksyms, $(KBUILD_SYMTYPES)) > $(v_file) \ $(call cmd_gensymtypes, $(KBUILD_SYMTYPES)) \
&& $(CC) $(no_g_c_flags) -c -Wa,$(v_file) \ > $(@D)/.tmp_$(@F:.o=.ver); \
-o $(tmp_o_file) $(s_file) \ \
&& $(OBJCOPY) -L '__crc_*' -L '___crc_*' -w \ $(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \
$(tmp_o_file) $@; \ -T $(@D)/.tmp_$(@F:.o=.ver); \
then \ rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver); \
: ; \
else \
rm -f $@; exit 1; \
fi; \
else \ else \
rm -f $(v_file); \ mv -f $(@D)/.tmp_$(@F) $@; \
$(CC) $(no_g_c_flags) -c -o $@ $(s_file); \
fi; fi;
endif endif
...@@ -225,12 +215,7 @@ define rule_cc_o_c ...@@ -225,12 +215,7 @@ define rule_cc_o_c
$(cmd_record_mcount) \ $(cmd_record_mcount) \
scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,cc_o_c)' > \ scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,cc_o_c)' > \
$(dot-target).tmp; \ $(dot-target).tmp; \
if [ -r $(@D)/.tmp_$(@F:.o=.v) ]; then \ rm -f $(depfile); \
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 mv -f $(dot-target).tmp $(dot-target).cmd
endef endef
......
scripts/Makefile.modinst
浏览文件 @ 2034563c
...@@ -17,8 +17,7 @@ __modinst: $(modules) ...@@ -17,8 +17,7 @@ __modinst: $(modules)
@: @:
quiet_cmd_modules_install = INSTALL $@ quiet_cmd_modules_install = INSTALL $@
cmd_modules_install = mkdir -p $(2); \ cmd_modules_install = mkdir -p $(2); cp $@ $(2) ; $(mod_strip_cmd) $(2)/$(notdir $@)
$(mod_strip_cmd) $@ $(2)/$(notdir $@) || cp $@ $(2)
# Modules built outside the kernel source tree go into extra by default # Modules built outside the kernel source tree go into extra by default
INSTALL_MOD_DIR ?= extra INSTALL_MOD_DIR ?= extra
......
scripts/config
浏览文件 @ 2034563c
...@@ -60,6 +60,10 @@ else ...@@ -60,6 +60,10 @@ else
FN=.config FN=.config
fi fi
if [ "$1" = "" ] ; then
usage
fi
while [ "$1" != "" ] ; do while [ "$1" != "" ] ; do
CMD="$1" CMD="$1"
shift shift
......
scripts/genksyms/genksyms.c
浏览文件 @ 2034563c
...@@ -43,7 +43,7 @@ int cur_line = 1; ...@@ -43,7 +43,7 @@ int cur_line = 1;
char *cur_filename; char *cur_filename;
static int flag_debug, flag_dump_defs, flag_reference, flag_dump_types, static int flag_debug, flag_dump_defs, flag_reference, flag_dump_types,
flag_preserve, flag_warnings, flag_asm; flag_preserve, flag_warnings;
static const char *arch = ""; static const char *arch = "";
static const char *mod_prefix = ""; static const char *mod_prefix = "";
...@@ -610,11 +610,8 @@ void export_symbol(const char *name) ...@@ -610,11 +610,8 @@ void export_symbol(const char *name)
if (flag_dump_defs) if (flag_dump_defs)
fputs(">\n", debugfile); fputs(">\n", debugfile);
/* Used as assembly source or a linker script. */ /* Used as a linker script. */
printf(flag_asm printf("%s__crc_%s = 0x%08lx ;\n", mod_prefix, name, crc);
? ".equiv %s__crc_%s, %#08lx\n"
: "%s__crc_%s = %#08lx ;\n",
mod_prefix, name, crc);
} }
} }
...@@ -651,10 +648,9 @@ void error_with_pos(const char *fmt, ...) ...@@ -651,10 +648,9 @@ void error_with_pos(const char *fmt, ...)
static void genksyms_usage(void) static void genksyms_usage(void)
{ {
fputs("Usage:\n" "genksyms [-aAdDTwqhV] > /path/to/.tmp_obj.ver\n" "\n" fputs("Usage:\n" "genksyms [-adDTwqhV] > /path/to/.tmp_obj.ver\n" "\n"
#ifdef __GNU_LIBRARY__ #ifdef __GNU_LIBRARY__
" -a, --arch Select architecture\n" " -a, --arch Select architecture\n"
" -A, --asm Generate assembly rather than linker script\n"
" -d, --debug Increment the debug level (repeatable)\n" " -d, --debug Increment the debug level (repeatable)\n"
" -D, --dump Dump expanded symbol defs (for debugging only)\n" " -D, --dump Dump expanded symbol defs (for debugging only)\n"
" -r, --reference file Read reference symbols from a file\n" " -r, --reference file Read reference symbols from a file\n"
...@@ -666,7 +662,6 @@ static void genksyms_usage(void) ...@@ -666,7 +662,6 @@ static void genksyms_usage(void)
" -V, --version Print the release version\n" " -V, --version Print the release version\n"
#else /* __GNU_LIBRARY__ */ #else /* __GNU_LIBRARY__ */
" -a Select architecture\n" " -a Select architecture\n"
" -A Generate assembly rather than linker script\n"
" -d Increment the debug level (repeatable)\n" " -d Increment the debug level (repeatable)\n"
" -D Dump expanded symbol defs (for debugging only)\n" " -D Dump expanded symbol defs (for debugging only)\n"
" -r file Read reference symbols from a file\n" " -r file Read reference symbols from a file\n"
...@@ -688,7 +683,6 @@ int main(int argc, char **argv) ...@@ -688,7 +683,6 @@ int main(int argc, char **argv)
#ifdef __GNU_LIBRARY__ #ifdef __GNU_LIBRARY__
struct option long_opts[] = { struct option long_opts[] = {
{"arch", 1, 0, 'a'}, {"arch", 1, 0, 'a'},
{"asm", 0, 0, 'A'},
{"debug", 0, 0, 'd'}, {"debug", 0, 0, 'd'},
{"warnings", 0, 0, 'w'}, {"warnings", 0, 0, 'w'},
{"quiet", 0, 0, 'q'}, {"quiet", 0, 0, 'q'},
...@@ -701,10 +695,10 @@ int main(int argc, char **argv) ...@@ -701,10 +695,10 @@ int main(int argc, char **argv)
{0, 0, 0, 0} {0, 0, 0, 0}
}; };
while ((o = getopt_long(argc, argv, "a:dwqVADr:T:ph", while ((o = getopt_long(argc, argv, "a:dwqVDr:T:ph",
&long_opts[0], NULL)) != EOF) &long_opts[0], NULL)) != EOF)
#else /* __GNU_LIBRARY__ */ #else /* __GNU_LIBRARY__ */
while ((o = getopt(argc, argv, "a:dwqVADr:T:ph")) != EOF) while ((o = getopt(argc, argv, "a:dwqVDr:T:ph")) != EOF)
#endif /* __GNU_LIBRARY__ */ #endif /* __GNU_LIBRARY__ */
switch (o) { switch (o) {
case 'a': case 'a':
...@@ -722,9 +716,6 @@ int main(int argc, char **argv) ...@@ -722,9 +716,6 @@ int main(int argc, char **argv)
case 'V': case 'V':
fputs("genksyms version 2.5.60\n", stderr); fputs("genksyms version 2.5.60\n", stderr);
break; break;
case 'A':
flag_asm = 1;
break;
case 'D': case 'D':
flag_dump_defs = 1; flag_dump_defs = 1;
break; break;
......
scripts/genksyms/keywords.c_shipped
浏览文件 @ 2034563c
/* ANSI-C code produced by gperf version 3.0.1 */ /* ANSI-C code produced by gperf version 3.0.2 */
/* 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 */ /* 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) \ #if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
...@@ -32,7 +32,7 @@ ...@@ -32,7 +32,7 @@
#line 3 "scripts/genksyms/keywords.gperf" #line 3 "scripts/genksyms/keywords.gperf"
struct resword { const char *name; int token; }; struct resword { const char *name; int token; };
/* maximum key range = 64, duplicates = 0 */ /* maximum key range = 62, duplicates = 0 */
#ifdef __GNUC__ #ifdef __GNUC__
__inline __inline
...@@ -46,32 +46,32 @@ is_reserved_hash (register const char *str, register unsigned int len) ...@@ -46,32 +46,32 @@ is_reserved_hash (register const char *str, register unsigned int len)
{ {
static const unsigned char asso_values[] = static const unsigned char asso_values[] =
{ {
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 0, 65, 65, 65, 65, 65, 65, 65, 65, 65, 5,
67, 67, 67, 67, 67, 67, 15, 67, 67, 67, 65, 65, 65, 65, 65, 65, 35, 65, 65, 65,
0, 67, 67, 67, 67, 67, 67, 67, 67, 67, 0, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 0, 67, 0, 67, 5, 65, 65, 65, 65, 65, 0, 65, 0, 65, 5,
25, 20, 15, 30, 67, 15, 67, 67, 10, 0, 20, 15, 10, 30, 65, 15, 65, 65, 20, 0,
10, 40, 20, 67, 10, 5, 0, 10, 15, 67, 10, 35, 20, 65, 10, 5, 0, 10, 5, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67, 67, 67, 67, 67, 67 65, 65, 65, 65, 65, 65
}; };
return len + asso_values[(unsigned char)str[2]] + asso_values[(unsigned char)str[0]] + asso_values[(unsigned char)str[len - 1]]; return len + asso_values[(unsigned char)str[2]] + asso_values[(unsigned char)str[0]] + asso_values[(unsigned char)str[len - 1]];
} }
...@@ -84,119 +84,116 @@ is_reserved_word (register const char *str, register unsigned int len) ...@@ -84,119 +84,116 @@ is_reserved_word (register const char *str, register unsigned int len)
{ {
enum enum
{ {
TOTAL_KEYWORDS = 45, TOTAL_KEYWORDS = 43,
MIN_WORD_LENGTH = 3, MIN_WORD_LENGTH = 3,
MAX_WORD_LENGTH = 24, MAX_WORD_LENGTH = 24,
MIN_HASH_VALUE = 3, MIN_HASH_VALUE = 3,
MAX_HASH_VALUE = 66 MAX_HASH_VALUE = 64
}; };
static const struct resword wordlist[] = static const struct resword wordlist[] =
{ {
{""}, {""}, {""}, {""}, {""}, {""},
#line 28 "scripts/genksyms/keywords.gperf" #line 26 "scripts/genksyms/keywords.gperf"
{"asm", ASM_KEYW}, {"asm", ASM_KEYW},
{""}, {""},
#line 10 "scripts/genksyms/keywords.gperf" #line 8 "scripts/genksyms/keywords.gperf"
{"__asm", ASM_KEYW}, {"__asm", ASM_KEYW},
{""}, {""},
#line 11 "scripts/genksyms/keywords.gperf" #line 9 "scripts/genksyms/keywords.gperf"
{"__asm__", ASM_KEYW}, {"__asm__", ASM_KEYW},
{""}, {""}, {""}, {""},
#line 54 "scripts/genksyms/keywords.gperf" #line 52 "scripts/genksyms/keywords.gperf"
{"__typeof__", TYPEOF_KEYW}, {"__typeof__", TYPEOF_KEYW},
{""}, {""},
#line 14 "scripts/genksyms/keywords.gperf" #line 12 "scripts/genksyms/keywords.gperf"
{"__const", CONST_KEYW}, {"__const", CONST_KEYW},
#line 13 "scripts/genksyms/keywords.gperf" #line 11 "scripts/genksyms/keywords.gperf"
{"__attribute__", ATTRIBUTE_KEYW}, {"__attribute__", ATTRIBUTE_KEYW},
#line 15 "scripts/genksyms/keywords.gperf" #line 13 "scripts/genksyms/keywords.gperf"
{"__const__", CONST_KEYW}, {"__const__", CONST_KEYW},
#line 20 "scripts/genksyms/keywords.gperf" #line 18 "scripts/genksyms/keywords.gperf"
{"__signed__", SIGNED_KEYW}, {"__signed__", SIGNED_KEYW},
#line 46 "scripts/genksyms/keywords.gperf" #line 44 "scripts/genksyms/keywords.gperf"
{"static", STATIC_KEYW}, {"static", STATIC_KEYW},
{""}, #line 20 "scripts/genksyms/keywords.gperf"
#line 41 "scripts/genksyms/keywords.gperf" {"__volatile__", VOLATILE_KEYW},
#line 39 "scripts/genksyms/keywords.gperf"
{"int", INT_KEYW}, {"int", INT_KEYW},
#line 34 "scripts/genksyms/keywords.gperf" #line 32 "scripts/genksyms/keywords.gperf"
{"char", CHAR_KEYW}, {"char", CHAR_KEYW},
#line 35 "scripts/genksyms/keywords.gperf" #line 33 "scripts/genksyms/keywords.gperf"
{"const", CONST_KEYW}, {"const", CONST_KEYW},
#line 47 "scripts/genksyms/keywords.gperf" #line 45 "scripts/genksyms/keywords.gperf"
{"struct", STRUCT_KEYW}, {"struct", STRUCT_KEYW},
#line 26 "scripts/genksyms/keywords.gperf" #line 24 "scripts/genksyms/keywords.gperf"
{"__restrict__", RESTRICT_KEYW}, {"__restrict__", RESTRICT_KEYW},
#line 27 "scripts/genksyms/keywords.gperf"
{"restrict", RESTRICT_KEYW},
#line 7 "scripts/genksyms/keywords.gperf"
{"EXPORT_SYMBOL_GPL_FUTURE", EXPORT_SYMBOL_KEYW},
#line 18 "scripts/genksyms/keywords.gperf"
{"__inline__", INLINE_KEYW},
{""},
#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" #line 25 "scripts/genksyms/keywords.gperf"
{"restrict", RESTRICT_KEYW},
#line 23 "scripts/genksyms/keywords.gperf"
{"_restrict", RESTRICT_KEYW}, {"_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" #line 16 "scripts/genksyms/keywords.gperf"
{"__inline__", INLINE_KEYW},
#line 10 "scripts/genksyms/keywords.gperf"
{"__attribute", ATTRIBUTE_KEYW},
{""},
#line 14 "scripts/genksyms/keywords.gperf"
{"__extension__", EXTENSION_KEYW}, {"__extension__", EXTENSION_KEYW},
#line 37 "scripts/genksyms/keywords.gperf" #line 35 "scripts/genksyms/keywords.gperf"
{"enum", ENUM_KEYW}, {"enum", ENUM_KEYW},
#line 8 "scripts/genksyms/keywords.gperf" #line 19 "scripts/genksyms/keywords.gperf"
{"EXPORT_UNUSED_SYMBOL", EXPORT_SYMBOL_KEYW}, {"__volatile", VOLATILE_KEYW},
#line 38 "scripts/genksyms/keywords.gperf" #line 36 "scripts/genksyms/keywords.gperf"
{"extern", EXTERN_KEYW}, {"extern", EXTERN_KEYW},
{""}, {""},
#line 19 "scripts/genksyms/keywords.gperf" #line 17 "scripts/genksyms/keywords.gperf"
{"__signed", SIGNED_KEYW}, {"__signed", SIGNED_KEYW},
#line 9 "scripts/genksyms/keywords.gperf" #line 7 "scripts/genksyms/keywords.gperf"
{"EXPORT_UNUSED_SYMBOL_GPL", EXPORT_SYMBOL_KEYW}, {"EXPORT_SYMBOL_GPL_FUTURE", EXPORT_SYMBOL_KEYW},
#line 49 "scripts/genksyms/keywords.gperf" {""},
{"union", UNION_KEYW}, #line 51 "scripts/genksyms/keywords.gperf"
#line 53 "scripts/genksyms/keywords.gperf"
{"typeof", TYPEOF_KEYW}, {"typeof", TYPEOF_KEYW},
#line 48 "scripts/genksyms/keywords.gperf" #line 46 "scripts/genksyms/keywords.gperf"
{"typedef", TYPEDEF_KEYW}, {"typedef", TYPEDEF_KEYW},
#line 17 "scripts/genksyms/keywords.gperf" #line 15 "scripts/genksyms/keywords.gperf"
{"__inline", INLINE_KEYW}, {"__inline", INLINE_KEYW},
#line 33 "scripts/genksyms/keywords.gperf" #line 31 "scripts/genksyms/keywords.gperf"
{"auto", AUTO_KEYW}, {"auto", AUTO_KEYW},
#line 21 "scripts/genksyms/keywords.gperf" #line 47 "scripts/genksyms/keywords.gperf"
{"__volatile", VOLATILE_KEYW}, {"union", UNION_KEYW},
{""}, {""}, {""}, {""},
#line 50 "scripts/genksyms/keywords.gperf" #line 48 "scripts/genksyms/keywords.gperf"
{"unsigned", UNSIGNED_KEYW}, {"unsigned", UNSIGNED_KEYW},
{""}, #line 49 "scripts/genksyms/keywords.gperf"
#line 44 "scripts/genksyms/keywords.gperf" {"void", VOID_KEYW},
#line 42 "scripts/genksyms/keywords.gperf"
{"short", SHORT_KEYW}, {"short", SHORT_KEYW},
#line 40 "scripts/genksyms/keywords.gperf" {""}, {""},
#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},
{""},
#line 5 "scripts/genksyms/keywords.gperf"
{"EXPORT_SYMBOL", EXPORT_SYMBOL_KEYW},
{""}, {""},
#line 38 "scripts/genksyms/keywords.gperf"
{"inline", INLINE_KEYW}, {"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 52 "scripts/genksyms/keywords.gperf" #line 22 "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}, {"_Bool", BOOL_KEYW},
{""}, {""},
#line 43 "scripts/genksyms/keywords.gperf" #line 43 "scripts/genksyms/keywords.gperf"
{"register", REGISTER_KEYW}, {"signed", SIGNED_KEYW},
#line 51 "scripts/genksyms/keywords.gperf" {""}, {""},
{"void", VOID_KEYW}, #line 40 "scripts/genksyms/keywords.gperf"
#line 39 "scripts/genksyms/keywords.gperf" {"long", LONG_KEYW}
{"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) if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
......
scripts/genksyms/keywords.gperf
浏览文件 @ 2034563c
...@@ -5,8 +5,6 @@ struct resword { const char *name; int token; } ...@@ -5,8 +5,6 @@ struct resword { const char *name; int token; }
EXPORT_SYMBOL, EXPORT_SYMBOL_KEYW EXPORT_SYMBOL, EXPORT_SYMBOL_KEYW
EXPORT_SYMBOL_GPL, EXPORT_SYMBOL_KEYW EXPORT_SYMBOL_GPL, EXPORT_SYMBOL_KEYW
EXPORT_SYMBOL_GPL_FUTURE, 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
__asm__, ASM_KEYW __asm__, ASM_KEYW
__attribute, ATTRIBUTE_KEYW __attribute, ATTRIBUTE_KEYW
......
scripts/kallsyms.c
浏览文件 @ 2034563c
...@@ -130,9 +130,18 @@ static int read_symbol(FILE *in, struct sym_entry *s) ...@@ -130,9 +130,18 @@ static int read_symbol(FILE *in, struct sym_entry *s)
static int symbol_valid(struct sym_entry *s) static int symbol_valid(struct sym_entry *s)
{ {
/* Symbols which vary between passes. Passes 1 and 2 must have /* Symbols which vary between passes. Passes 1 and 2 must have
* identical symbol lists. * 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.
*/ */
static char *special_symbols[] = { 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 */ /* Exclude linker generated symbols which vary between passes */
"_SDA_BASE_", /* ppc */ "_SDA_BASE_", /* ppc */
"_SDA2_BASE_", /* ppc */ "_SDA2_BASE_", /* ppc */
...@@ -164,9 +173,7 @@ static int symbol_valid(struct sym_entry *s) ...@@ -164,9 +173,7 @@ static int symbol_valid(struct sym_entry *s)
} }
/* Exclude symbols which vary between passes. */ /* 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; return 0;
for (i = 0; special_symbols[i]; i++) for (i = 0; special_symbols[i]; i++)
...@@ -543,10 +550,8 @@ int main(int argc, char **argv) ...@@ -543,10 +550,8 @@ int main(int argc, char **argv)
usage(); usage();
read_map(stdin); read_map(stdin);
if (table_cnt) { sort_symbols();
sort_symbols(); optimize_token_table();
optimize_token_table();
}
write_src(); write_src();
return 0; return 0;
......
scripts/mksysmap
浏览文件 @ 2034563c
...@@ -37,6 +37,9 @@ ...@@ -37,6 +37,9 @@
# readprofile starts reading symbols when _stext is found, and # readprofile starts reading symbols when _stext is found, and
# continue until it finds a symbol which is not either of 'T', 't', # continue until it finds a symbol which is not either of 'T', 't',
# 'W' or 'w'. # '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
$NM -n $1 | grep -v '\( [aNUw] \)\|\( \$[adt]\)' > $2
scripts/strip-symbols 已删除 100644 → 0
浏览文件 @ 924d26df
<*>
*.h
__compound_literal[$.][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
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