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authorSam Ravnborg <sam@ravnborg.org>2009-01-14 15:38:20 -0500
committerSam Ravnborg <sam@ravnborg.org>2009-01-14 15:38:20 -0500
commit2ea038917bbdd51a7ae4a898c6a04641324dd033 (patch)
tree6a6f8b1db4d097d260449f88c267e39ab9d2bb3f
parenta6525042bfdfcab128bd91fad264de10fd24a55e (diff)
Revert "kbuild: strip generated symbols from *.ko"
This reverts commit ad7a953c522ceb496611d127e51e278bfe0ff483. And commit: ("allow stripping of generated symbols under CONFIG_KALLSYMS_ALL") 9bb482476c6c9d1ae033306440c51ceac93ea80c These stripping patches has caused a set of issues: 1) People have reported compatibility issues with binutils due to lack of support for `--strip-unneeded-symbols' with objcopy 2.15.92.0.2 Reported by: Wenji 2) ccache and distcc no longer works as expeced Reported by: Ted, Roland, + others 3) The installed modules increased a lot in size Reported by: Ted, Davej + others Reported-by: Wenji Huang <wenji.huang@oracle.com> Reported-by: "Theodore Ts'o" <tytso@mit.edu> Reported-by: Dave Jones <davej@redhat.com> Reported-by: Roland McGrath <roland@redhat.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat
-rw-r--r--Makefile59
-rw-r--r--arch/x86/scripts/strip-symbols1
-rw-r--r--init/Kconfig7
-rw-r--r--kernel/kallsyms.c16
-rw-r--r--scripts/Makefile.build55
-rw-r--r--scripts/Makefile.modinst3
-rw-r--r--scripts/genksyms/genksyms.c21
-rw-r--r--scripts/genksyms/keywords.c_shipped189
-rw-r--r--scripts/genksyms/keywords.gperf2
-rw-r--r--scripts/kallsyms.c21
-rw-r--r--scripts/mksysmap7
-rw-r--r--scripts/strip-symbols22
12 files changed, 166 insertions, 237 deletions
diff --git a/Makefile b/Makefile
index c06e250eca18..c2c4bbeef59d 100644
--- a/Makefile
+++ b/Makefile
@@ -606,25 +606,20 @@ export INSTALL_PATH ?= /boot
606MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) 606MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
607export MODLIB 607export MODLIB
608 608
609strip-symbols := $(srctree)/scripts/strip-symbols \
610 $(wildcard $(srctree)/arch/$(ARCH)/scripts/strip-symbols)
611
612# 609#
613# INSTALL_MOD_STRIP, if defined, will cause modules to be stripped while 610# INSTALL_MOD_STRIP, if defined, will cause modules to be
614# they get installed. If INSTALL_MOD_STRIP is '1', then the default 611# stripped after they are installed. If INSTALL_MOD_STRIP is '1', then
615# options (see below) will be used. Otherwise, INSTALL_MOD_STRIP will 612# the default option --strip-debug will be used. Otherwise,
616# be used as the option(s) to the objcopy command. 613# INSTALL_MOD_STRIP will used as the options to the strip command.
614
617ifdef INSTALL_MOD_STRIP 615ifdef INSTALL_MOD_STRIP
618ifeq ($(INSTALL_MOD_STRIP),1) 616ifeq ($(INSTALL_MOD_STRIP),1)
619mod_strip_cmd = $(OBJCOPY) --strip-debug 617mod_strip_cmd = $(STRIP) --strip-debug
620ifeq ($(CONFIG_KALLSYMS_ALL),$(CONFIG_KALLSYMS_STRIP_GENERATED))
621mod_strip_cmd += --wildcard $(addprefix --strip-symbols ,$(strip-symbols))
622endif
623else 618else
624mod_strip_cmd = $(OBJCOPY) $(INSTALL_MOD_STRIP) 619mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)
625endif # INSTALL_MOD_STRIP=1 620endif # INSTALL_MOD_STRIP=1
626else 621else
627mod_strip_cmd = false 622mod_strip_cmd = true
628endif # INSTALL_MOD_STRIP 623endif # INSTALL_MOD_STRIP
629export mod_strip_cmd 624export mod_strip_cmd
630 625
@@ -754,7 +749,6 @@ last_kallsyms := 2
754endif 749endif
755 750
756kallsyms.o := .tmp_kallsyms$(last_kallsyms).o 751kallsyms.o := .tmp_kallsyms$(last_kallsyms).o
757kallsyms.h := $(wildcard include/config/kallsyms/*.h) $(wildcard include/config/kallsyms/*/*.h)
758 752
759define verify_kallsyms 753define verify_kallsyms
760 $(Q)$(if $($(quiet)cmd_sysmap), \ 754 $(Q)$(if $($(quiet)cmd_sysmap), \
@@ -779,41 +773,24 @@ endef
779 773
780# Generate .S file with all kernel symbols 774# Generate .S file with all kernel symbols
781quiet_cmd_kallsyms = KSYM $@ 775quiet_cmd_kallsyms = KSYM $@
782 cmd_kallsyms = { test $* -eq 0 || $(NM) -n $<; } \ 776 cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \
783 | $(KALLSYMS) $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) >$@ 777 $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@
784
785quiet_cmd_kstrip = STRIP $@
786 cmd_kstrip = $(OBJCOPY) --wildcard $(addprefix --strip$(if $(CONFIG_RELOCATABLE),-unneeded)-symbols ,$(filter %/scripts/strip-symbols,$^)) $< $@
787 778
788$(foreach n,0 1 2 3,.tmp_kallsyms$(n).o): KBUILD_AFLAGS += -Wa,--strip-local-absolute 779.tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE
789$(foreach n,0 1 2 3,.tmp_kallsyms$(n).o): %.o: %.S scripts FORCE
790 $(call if_changed_dep,as_o_S) 780 $(call if_changed_dep,as_o_S)
791 781
792ifeq ($(CONFIG_KALLSYMS_STRIP_GENERATED),y) 782.tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS)
793strip-ext := .stripped
794endif
795
796.tmp_kallsyms%.S: .tmp_vmlinux%$(strip-ext) $(KALLSYMS) $(kallsyms.h)
797 $(call cmd,kallsyms) 783 $(call cmd,kallsyms)
798 784
799# make -jN seems to have problems with intermediate files, see bug #3330.
800.SECONDARY: $(foreach n,1 2 3,.tmp_vmlinux$(n).stripped)
801.tmp_vmlinux%.stripped: .tmp_vmlinux% $(strip-symbols) $(kallsyms.h)
802 $(call cmd,kstrip)
803
804ifneq ($(CONFIG_DEBUG_INFO),y)
805.tmp_vmlinux%: LDFLAGS_vmlinux += -S
806endif
807# .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version 785# .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version
808.tmp_vmlinux%: $(vmlinux-lds) $(vmlinux-all) FORCE 786.tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE
809 $(if $(filter 1,$*),$(call if_changed_rule,ksym_ld),$(call if_changed,vmlinux__)) 787 $(call if_changed_rule,ksym_ld)
810 788
811.tmp_vmlinux0$(strip-ext): 789.tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE
812 $(Q)echo "placeholder" >$@ 790 $(call if_changed,vmlinux__)
813 791
814.tmp_vmlinux1: .tmp_kallsyms0.o 792.tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE
815.tmp_vmlinux2: .tmp_kallsyms1.o 793 $(call if_changed,vmlinux__)
816.tmp_vmlinux3: .tmp_kallsyms2.o
817 794
818# Needs to visit scripts/ before $(KALLSYMS) can be used. 795# Needs to visit scripts/ before $(KALLSYMS) can be used.
819$(KALLSYMS): scripts ; 796$(KALLSYMS): scripts ;
diff --git a/arch/x86/scripts/strip-symbols b/arch/x86/scripts/strip-symbols
deleted file mode 100644
index a2f1ccb827c7..000000000000
--- a/arch/x86/scripts/strip-symbols
+++ /dev/null
@@ -1 +0,0 @@
1__cpu_vendor_dev_X86_VENDOR_*
diff --git a/init/Kconfig b/init/Kconfig
index a724a149bf3f..0e9924743a17 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -626,13 +626,6 @@ config KALLSYMS_ALL
626 626
627 Say N. 627 Say N.
628 628
629config KALLSYMS_STRIP_GENERATED
630 bool "Strip machine generated symbols from kallsyms"
631 depends on KALLSYMS_ALL
632 default y
633 help
634 Say N if you want kallsyms to retain even machine generated symbols.
635
636config KALLSYMS_EXTRA_PASS 629config KALLSYMS_EXTRA_PASS
637 bool "Do an extra kallsyms pass" 630 bool "Do an extra kallsyms pass"
638 depends on KALLSYMS 631 depends on KALLSYMS
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index e694afa0eb8c..7b8b0f21a5b1 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -30,19 +30,20 @@
30#define all_var 0 30#define all_var 0
31#endif 31#endif
32 32
33extern const unsigned long kallsyms_addresses[]; 33/* These will be re-linked against their real values during the second link stage */
34extern const u8 kallsyms_names[]; 34extern const unsigned long kallsyms_addresses[] __attribute__((weak));
35extern const u8 kallsyms_names[] __attribute__((weak));
35 36
36/* tell the compiler that the count isn't in the small data section if the arch 37/* tell the compiler that the count isn't in the small data section if the arch
37 * has one (eg: FRV) 38 * has one (eg: FRV)
38 */ 39 */
39extern const unsigned long kallsyms_num_syms 40extern const unsigned long kallsyms_num_syms
40 __attribute__((__section__(".rodata"))); 41__attribute__((weak, section(".rodata")));
41 42
42extern const u8 kallsyms_token_table[]; 43extern const u8 kallsyms_token_table[] __attribute__((weak));
43extern const u16 kallsyms_token_index[]; 44extern const u16 kallsyms_token_index[] __attribute__((weak));
44 45
45extern const unsigned long kallsyms_markers[]; 46extern const unsigned long kallsyms_markers[] __attribute__((weak));
46 47
47static inline int is_kernel_inittext(unsigned long addr) 48static inline int is_kernel_inittext(unsigned long addr)
48{ 49{
@@ -167,6 +168,9 @@ static unsigned long get_symbol_pos(unsigned long addr,
167 unsigned long symbol_start = 0, symbol_end = 0; 168 unsigned long symbol_start = 0, symbol_end = 0;
168 unsigned long i, low, high, mid; 169 unsigned long i, low, high, mid;
169 170
171 /* This kernel should never had been booted. */
172 BUG_ON(!kallsyms_addresses);
173
170 /* do a binary search on the sorted kallsyms_addresses array */ 174 /* do a binary search on the sorted kallsyms_addresses array */
171 low = 0; 175 low = 0;
172 high = kallsyms_num_syms; 176 high = kallsyms_num_syms;
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 5d900307de3e..c7de8b39fcf1 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -151,16 +151,16 @@ cmd_cc_i_c = $(CPP) $(c_flags) -o $@ $<
151$(obj)/%.i: $(src)/%.c FORCE 151$(obj)/%.i: $(src)/%.c FORCE
152 $(call if_changed_dep,cc_i_c) 152 $(call if_changed_dep,cc_i_c)
153 153
154cmd_genksyms = \ 154cmd_gensymtypes = \
155 $(CPP) -D__GENKSYMS__ $(c_flags) $< | \ 155 $(CPP) -D__GENKSYMS__ $(c_flags) $< | \
156 $(GENKSYMS) -T $@ -A -a $(ARCH) \ 156 $(GENKSYMS) -T $@ -a $(ARCH) \
157 $(if $(KBUILD_PRESERVE),-p) \ 157 $(if $(KBUILD_PRESERVE),-p) \
158 $(if $(1),-r $(firstword $(wildcard $(@:.symtypes=.symref) /dev/null))) 158 $(if $(1),-r $(firstword $(wildcard $(@:.symtypes=.symref) /dev/null)))
159 159
160quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@ 160quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@
161cmd_cc_symtypes_c = \ 161cmd_cc_symtypes_c = \
162 set -e; \ 162 set -e; \
163 $(call cmd_genksyms, true) >/dev/null; \ 163 $(call cmd_gensymtypes, true) >/dev/null; \
164 test -s $@ || rm -f $@ 164 test -s $@ || rm -f $@
165 165
166$(obj)/%.symtypes : $(src)/%.c FORCE 166$(obj)/%.symtypes : $(src)/%.c FORCE
@@ -177,38 +177,28 @@ cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
177 177
178else 178else
179# When module versioning is enabled the following steps are executed: 179# When module versioning is enabled the following steps are executed:
180# o compile a .tmp_<file>.s from <file>.c 180# o compile a .tmp_<file>.o from <file>.c
181# o if .tmp_<file>.s doesn't contain a __ksymtab version, i.e. does 181# o if .tmp_<file>.o doesn't contain a __ksymtab version, i.e. does
182# not export symbols, we just assemble .tmp_<file>.s to <file>.o and 182# not export symbols, we just rename .tmp_<file>.o to <file>.o and
183# are done. 183# are done.
184# o otherwise, we calculate symbol versions using the good old 184# o otherwise, we calculate symbol versions using the good old
185# genksyms on the preprocessed source and postprocess them in a way 185# genksyms on the preprocessed source and postprocess them in a way
186# that they are usable as assembly source 186# that they are usable as a linker script
187# o assemble <file>.o from .tmp_<file>.s forcing inclusion of directives 187# o generate <file>.o from .tmp_<file>.o using the linker to
188# defining the actual values of __crc_*, followed by objcopy-ing them 188# replace the unresolved symbols __crc_exported_symbol with
189# to force these symbols to be local to permit stripping them later. 189# the actual value of the checksum generated by genksyms
190s_file = $(@D)/.tmp_$(@F:.o=.s)
191v_file = $(@D)/.tmp_$(@F:.o=.v)
192tmp_o_file = $(@D)/.tmp_$(@F)
193no_g_c_flags = $(filter-out -g%,$(c_flags))
194
195cmd_cc_o_c = $(CC) $(c_flags) -S -o $(s_file) $<
196 190
191cmd_cc_o_c = $(CC) $(c_flags) -c -o $(@D)/.tmp_$(@F) $<
197cmd_modversions = \ 192cmd_modversions = \
198 if grep -q __ksymtab $(s_file); then \ 193 if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
199 if $(call cmd_genksyms, $(KBUILD_SYMTYPES)) > $(v_file) \ 194 $(call cmd_gensymtypes, $(KBUILD_SYMTYPES)) \
200 && $(CC) $(no_g_c_flags) -c -Wa,$(v_file) \ 195 > $(@D)/.tmp_$(@F:.o=.ver); \
201 -o $(tmp_o_file) $(s_file) \ 196 \
202 && $(OBJCOPY) -L '__crc_*' -L '___crc_*' -w \ 197 $(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \
203 $(tmp_o_file) $@; \ 198 -T $(@D)/.tmp_$(@F:.o=.ver); \
204 then \ 199 rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver); \
205 : ; \
206 else \
207 rm -f $@; exit 1; \
208 fi; \
209 else \ 200 else \
210 rm -f $(v_file); \ 201 mv -f $(@D)/.tmp_$(@F) $@; \
211 $(CC) $(no_g_c_flags) -c -o $@ $(s_file); \
212 fi; 202 fi;
213endif 203endif
214 204
@@ -225,12 +215,7 @@ define rule_cc_o_c
225 $(cmd_record_mcount) \ 215 $(cmd_record_mcount) \
226 scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,cc_o_c)' > \ 216 scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,cc_o_c)' > \
227 $(dot-target).tmp; \ 217 $(dot-target).tmp; \
228 if [ -r $(@D)/.tmp_$(@F:.o=.v) ]; then \ 218 rm -f $(depfile); \
229 echo >> $(dot-target).tmp; \
230 echo '$@: $(GENKSYMS)' >> $(dot-target).tmp; \
231 echo '$(GENKSYMS):: ;' >> $(dot-target).tmp; \
232 fi; \
233 rm -f $(depfile) $(@D)/.tmp_$(@F:.o=.?); \
234 mv -f $(dot-target).tmp $(dot-target).cmd 219 mv -f $(dot-target).tmp $(dot-target).cmd
235endef 220endef
236 221
diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index a5122dce1264..efa5d940e632 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst
@@ -17,8 +17,7 @@ __modinst: $(modules)
17 @: 17 @:
18 18
19quiet_cmd_modules_install = INSTALL $@ 19quiet_cmd_modules_install = INSTALL $@
20 cmd_modules_install = mkdir -p $(2); \ 20 cmd_modules_install = mkdir -p $(2); cp $@ $(2) ; $(mod_strip_cmd) $(2)/$(notdir $@)
21 $(mod_strip_cmd) $@ $(2)/$(notdir $@) || cp $@ $(2)
22 21
23# Modules built outside the kernel source tree go into extra by default 22# Modules built outside the kernel source tree go into extra by default
24INSTALL_MOD_DIR ?= extra 23INSTALL_MOD_DIR ?= extra
diff --git a/scripts/genksyms/genksyms.c b/scripts/genksyms/genksyms.c
index f8bb4cabd62d..3a8297b5184c 100644
--- a/scripts/genksyms/genksyms.c
+++ b/scripts/genksyms/genksyms.c
@@ -43,7 +43,7 @@ int cur_line = 1;
43char *cur_filename; 43char *cur_filename;
44 44
45static int flag_debug, flag_dump_defs, flag_reference, flag_dump_types, 45static int flag_debug, flag_dump_defs, flag_reference, flag_dump_types,
46 flag_preserve, flag_warnings, flag_asm; 46 flag_preserve, flag_warnings;
47static const char *arch = ""; 47static const char *arch = "";
48static const char *mod_prefix = ""; 48static const char *mod_prefix = "";
49 49
@@ -610,11 +610,8 @@ void export_symbol(const char *name)
610 if (flag_dump_defs) 610 if (flag_dump_defs)
611 fputs(">\n", debugfile); 611 fputs(">\n", debugfile);
612 612
613 /* Used as assembly source or a linker script. */ 613 /* Used as a linker script. */
614 printf(flag_asm 614 printf("%s__crc_%s = 0x%08lx ;\n", mod_prefix, name, crc);
615 ? ".equiv %s__crc_%s, %#08lx\n"
616 : "%s__crc_%s = %#08lx ;\n",
617 mod_prefix, name, crc);
618 } 615 }
619} 616}
620 617
@@ -651,10 +648,9 @@ void error_with_pos(const char *fmt, ...)
651 648
652static void genksyms_usage(void) 649static void genksyms_usage(void)
653{ 650{
654 fputs("Usage:\n" "genksyms [-aAdDTwqhV] > /path/to/.tmp_obj.ver\n" "\n" 651 fputs("Usage:\n" "genksyms [-adDTwqhV] > /path/to/.tmp_obj.ver\n" "\n"
655#ifdef __GNU_LIBRARY__ 652#ifdef __GNU_LIBRARY__
656 " -a, --arch Select architecture\n" 653 " -a, --arch Select architecture\n"
657 " -A, --asm Generate assembly rather than linker script\n"
658 " -d, --debug Increment the debug level (repeatable)\n" 654 " -d, --debug Increment the debug level (repeatable)\n"
659 " -D, --dump Dump expanded symbol defs (for debugging only)\n" 655 " -D, --dump Dump expanded symbol defs (for debugging only)\n"
660 " -r, --reference file Read reference symbols from a file\n" 656 " -r, --reference file Read reference symbols from a file\n"
@@ -666,7 +662,6 @@ static void genksyms_usage(void)
666 " -V, --version Print the release version\n" 662 " -V, --version Print the release version\n"
667#else /* __GNU_LIBRARY__ */ 663#else /* __GNU_LIBRARY__ */
668 " -a Select architecture\n" 664 " -a Select architecture\n"
669 " -A Generate assembly rather than linker script\n"
670 " -d Increment the debug level (repeatable)\n" 665 " -d Increment the debug level (repeatable)\n"
671 " -D Dump expanded symbol defs (for debugging only)\n" 666 " -D Dump expanded symbol defs (for debugging only)\n"
672 " -r file Read reference symbols from a file\n" 667 " -r file Read reference symbols from a file\n"
@@ -688,7 +683,6 @@ int main(int argc, char **argv)
688#ifdef __GNU_LIBRARY__ 683#ifdef __GNU_LIBRARY__
689 struct option long_opts[] = { 684 struct option long_opts[] = {
690 {"arch", 1, 0, 'a'}, 685 {"arch", 1, 0, 'a'},
691 {"asm", 0, 0, 'A'},
692 {"debug", 0, 0, 'd'}, 686 {"debug", 0, 0, 'd'},
693 {"warnings", 0, 0, 'w'}, 687 {"warnings", 0, 0, 'w'},
694 {"quiet", 0, 0, 'q'}, 688 {"quiet", 0, 0, 'q'},
@@ -701,10 +695,10 @@ int main(int argc, char **argv)
701 {0, 0, 0, 0} 695 {0, 0, 0, 0}
702 }; 696 };
703 697
704 while ((o = getopt_long(argc, argv, "a:dwqVADr:T:ph", 698 while ((o = getopt_long(argc, argv, "a:dwqVDr:T:ph",
705 &long_opts[0], NULL)) != EOF) 699 &long_opts[0], NULL)) != EOF)
706#else /* __GNU_LIBRARY__ */ 700#else /* __GNU_LIBRARY__ */
707 while ((o = getopt(argc, argv, "a:dwqVADr:T:ph")) != EOF) 701 while ((o = getopt(argc, argv, "a:dwqVDr:T:ph")) != EOF)
708#endif /* __GNU_LIBRARY__ */ 702#endif /* __GNU_LIBRARY__ */
709 switch (o) { 703 switch (o) {
710 case 'a': 704 case 'a':
@@ -722,9 +716,6 @@ int main(int argc, char **argv)
722 case 'V': 716 case 'V':
723 fputs("genksyms version 2.5.60\n", stderr); 717 fputs("genksyms version 2.5.60\n", stderr);
724 break; 718 break;
725 case 'A':
726 flag_asm = 1;
727 break;
728 case 'D': 719 case 'D':
729 flag_dump_defs = 1; 720 flag_dump_defs = 1;
730 break; 721 break;
diff --git a/scripts/genksyms/keywords.c_shipped b/scripts/genksyms/keywords.c_shipped
index 83484fe93ede..971e0113ae7a 100644
--- a/scripts/genksyms/keywords.c_shipped
+++ b/scripts/genksyms/keywords.c_shipped
@@ -1,4 +1,4 @@
1/* ANSI-C code produced by gperf version 3.0.1 */ 1/* ANSI-C code produced by gperf version 3.0.2 */
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 */ 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 */
3 3
4#if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \ 4#if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
@@ -32,7 +32,7 @@
32 32
33#line 3 "scripts/genksyms/keywords.gperf" 33#line 3 "scripts/genksyms/keywords.gperf"
34struct resword { const char *name; int token; }; 34struct resword { const char *name; int token; };
35/* maximum key range = 64, duplicates = 0 */ 35/* maximum key range = 62, duplicates = 0 */
36 36
37#ifdef __GNUC__ 37#ifdef __GNUC__
38__inline 38__inline
@@ -46,32 +46,32 @@ is_reserved_hash (register const char *str, register unsigned int len)
46{ 46{
47 static const unsigned char asso_values[] = 47 static const unsigned char asso_values[] =
48 { 48 {
49 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 49 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
50 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 50 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
51 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 51 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
52 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 52 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
53 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 53 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
54 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 54 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
55 67, 67, 67, 67, 67, 67, 67, 67, 67, 0, 55 65, 65, 65, 65, 65, 65, 65, 65, 65, 5,
56 67, 67, 67, 67, 67, 67, 15, 67, 67, 67, 56 65, 65, 65, 65, 65, 65, 35, 65, 65, 65,
57 0, 67, 67, 67, 67, 67, 67, 67, 67, 67, 57 0, 65, 65, 65, 65, 65, 65, 65, 65, 65,
58 67, 67, 67, 67, 67, 0, 67, 0, 67, 5, 58 65, 65, 65, 65, 65, 0, 65, 0, 65, 5,
59 25, 20, 15, 30, 67, 15, 67, 67, 10, 0, 59 20, 15, 10, 30, 65, 15, 65, 65, 20, 0,
60 10, 40, 20, 67, 10, 5, 0, 10, 15, 67, 60 10, 35, 20, 65, 10, 5, 0, 10, 5, 65,
61 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 61 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
62 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 62 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
63 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 63 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
64 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 64 65, 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, 65,
66 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 66 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
67 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
68 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 68 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
69 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 69 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
70 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 70 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
71 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 71 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
72 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 72 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
73 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 73 65, 65, 65, 65, 65, 65, 65, 65, 65, 65,
74 67, 67, 67, 67, 67, 67 74 65, 65, 65, 65, 65, 65
75 }; 75 };
76 return len + asso_values[(unsigned char)str[2]] + asso_values[(unsigned char)str[0]] + asso_values[(unsigned char)str[len - 1]]; 76 return len + asso_values[(unsigned char)str[2]] + asso_values[(unsigned char)str[0]] + asso_values[(unsigned char)str[len - 1]];
77} 77}
@@ -84,119 +84,116 @@ is_reserved_word (register const char *str, register unsigned int len)
84{ 84{
85 enum 85 enum
86 { 86 {
87 TOTAL_KEYWORDS = 45, 87 TOTAL_KEYWORDS = 43,
88 MIN_WORD_LENGTH = 3, 88 MIN_WORD_LENGTH = 3,
89 MAX_WORD_LENGTH = 24, 89 MAX_WORD_LENGTH = 24,
90 MIN_HASH_VALUE = 3, 90 MIN_HASH_VALUE = 3,
91 MAX_HASH_VALUE = 66 91 MAX_HASH_VALUE = 64
92 }; 92 };
93 93
94 static const struct resword wordlist[] = 94 static const struct resword wordlist[] =
95 { 95 {
96 {""}, {""}, {""}, 96 {""}, {""}, {""},
97#line 28 "scripts/genksyms/keywords.gperf" 97#line 26 "scripts/genksyms/keywords.gperf"
98 {"asm", ASM_KEYW}, 98 {"asm", ASM_KEYW},
99 {""}, 99 {""},
100#line 10 "scripts/genksyms/keywords.gperf" 100#line 8 "scripts/genksyms/keywords.gperf"
101 {"__asm", ASM_KEYW}, 101 {"__asm", ASM_KEYW},
102 {""}, 102 {""},
103#line 11 "scripts/genksyms/keywords.gperf" 103#line 9 "scripts/genksyms/keywords.gperf"
104 {"__asm__", ASM_KEYW}, 104 {"__asm__", ASM_KEYW},
105 {""}, {""}, 105 {""}, {""},
106#line 54 "scripts/genksyms/keywords.gperf" 106#line 52 "scripts/genksyms/keywords.gperf"
107 {"__typeof__", TYPEOF_KEYW}, 107 {"__typeof__", TYPEOF_KEYW},
108 {""}, 108 {""},
109#line 14 "scripts/genksyms/keywords.gperf" 109#line 12 "scripts/genksyms/keywords.gperf"
110 {"__const", CONST_KEYW}, 110 {"__const", CONST_KEYW},
111#line 13 "scripts/genksyms/keywords.gperf" 111#line 11 "scripts/genksyms/keywords.gperf"
112 {"__attribute__", ATTRIBUTE_KEYW}, 112 {"__attribute__", ATTRIBUTE_KEYW},
113#line 15 "scripts/genksyms/keywords.gperf" 113#line 13 "scripts/genksyms/keywords.gperf"
114 {"__const__", CONST_KEYW}, 114 {"__const__", CONST_KEYW},
115#line 20 "scripts/genksyms/keywords.gperf" 115#line 18 "scripts/genksyms/keywords.gperf"
116 {"__signed__", SIGNED_KEYW}, 116 {"__signed__", SIGNED_KEYW},
117#line 46 "scripts/genksyms/keywords.gperf" 117#line 44 "scripts/genksyms/keywords.gperf"
118 {"static", STATIC_KEYW}, 118 {"static", STATIC_KEYW},
119 {""}, 119#line 20 "scripts/genksyms/keywords.gperf"
120#line 41 "scripts/genksyms/keywords.gperf" 120 {"__volatile__", VOLATILE_KEYW},
121#line 39 "scripts/genksyms/keywords.gperf"
121 {"int", INT_KEYW}, 122 {"int", INT_KEYW},
122#line 34 "scripts/genksyms/keywords.gperf" 123#line 32 "scripts/genksyms/keywords.gperf"
123 {"char", CHAR_KEYW}, 124 {"char", CHAR_KEYW},
124#line 35 "scripts/genksyms/keywords.gperf" 125#line 33 "scripts/genksyms/keywords.gperf"
125 {"const", CONST_KEYW}, 126 {"const", CONST_KEYW},
126#line 47 "scripts/genksyms/keywords.gperf" 127#line 45 "scripts/genksyms/keywords.gperf"
127 {"struct", STRUCT_KEYW}, 128 {"struct", STRUCT_KEYW},
128#line 26 "scripts/genksyms/keywords.gperf" 129#line 24 "scripts/genksyms/keywords.gperf"
129 {"__restrict__", RESTRICT_KEYW}, 130 {"__restrict__", RESTRICT_KEYW},
130#line 27 "scripts/genksyms/keywords.gperf"
131 {"restrict", RESTRICT_KEYW},
132#line 7 "scripts/genksyms/keywords.gperf"
133 {"EXPORT_SYMBOL_GPL_FUTURE", EXPORT_SYMBOL_KEYW},
134#line 18 "scripts/genksyms/keywords.gperf"
135 {"__inline__", INLINE_KEYW},
136 {""},
137#line 22 "scripts/genksyms/keywords.gperf"
138 {"__volatile__", VOLATILE_KEYW},
139#line 5 "scripts/genksyms/keywords.gperf"
140 {"EXPORT_SYMBOL", EXPORT_SYMBOL_KEYW},
141#line 25 "scripts/genksyms/keywords.gperf" 131#line 25 "scripts/genksyms/keywords.gperf"
132 {"restrict", RESTRICT_KEYW},
133#line 23 "scripts/genksyms/keywords.gperf"
142 {"_restrict", RESTRICT_KEYW}, 134 {"_restrict", RESTRICT_KEYW},
143 {""},
144#line 12 "scripts/genksyms/keywords.gperf"
145 {"__attribute", ATTRIBUTE_KEYW},
146#line 6 "scripts/genksyms/keywords.gperf"
147 {"EXPORT_SYMBOL_GPL", EXPORT_SYMBOL_KEYW},
148#line 16 "scripts/genksyms/keywords.gperf" 135#line 16 "scripts/genksyms/keywords.gperf"
136 {"__inline__", INLINE_KEYW},
137#line 10 "scripts/genksyms/keywords.gperf"
138 {"__attribute", ATTRIBUTE_KEYW},
139 {""},
140#line 14 "scripts/genksyms/keywords.gperf"
149 {"__extension__", EXTENSION_KEYW}, 141 {"__extension__", EXTENSION_KEYW},
150#line 37 "scripts/genksyms/keywords.gperf" 142#line 35 "scripts/genksyms/keywords.gperf"
151 {"enum", ENUM_KEYW}, 143 {"enum", ENUM_KEYW},
152#line 8 "scripts/genksyms/keywords.gperf" 144#line 19 "scripts/genksyms/keywords.gperf"
153 {"EXPORT_UNUSED_SYMBOL", EXPORT_SYMBOL_KEYW}, 145 {"__volatile", VOLATILE_KEYW},
154#line 38 "scripts/genksyms/keywords.gperf" 146#line 36 "scripts/genksyms/keywords.gperf"
155 {"extern", EXTERN_KEYW}, 147 {"extern", EXTERN_KEYW},
156 {""}, 148 {""},
157#line 19 "scripts/genksyms/keywords.gperf" 149#line 17 "scripts/genksyms/keywords.gperf"
158 {"__signed", SIGNED_KEYW}, 150 {"__signed", SIGNED_KEYW},
159#line 9 "scripts/genksyms/keywords.gperf" 151#line 7 "scripts/genksyms/keywords.gperf"
160 {"EXPORT_UNUSED_SYMBOL_GPL", EXPORT_SYMBOL_KEYW}, 152 {"EXPORT_SYMBOL_GPL_FUTURE", EXPORT_SYMBOL_KEYW},
161#line 49 "scripts/genksyms/keywords.gperf" 153 {""},
162 {"union", UNION_KEYW}, 154#line 51 "scripts/genksyms/keywords.gperf"
163#line 53 "scripts/genksyms/keywords.gperf"
164 {"typeof", TYPEOF_KEYW}, 155 {"typeof", TYPEOF_KEYW},
165#line 48 "scripts/genksyms/keywords.gperf" 156#line 46 "scripts/genksyms/keywords.gperf"
166 {"typedef", TYPEDEF_KEYW}, 157 {"typedef", TYPEDEF_KEYW},
167#line 17 "scripts/genksyms/keywords.gperf" 158#line 15 "scripts/genksyms/keywords.gperf"
168 {"__inline", INLINE_KEYW}, 159 {"__inline", INLINE_KEYW},
169#line 33 "scripts/genksyms/keywords.gperf" 160#line 31 "scripts/genksyms/keywords.gperf"
170 {"auto", AUTO_KEYW}, 161 {"auto", AUTO_KEYW},
171#line 21 "scripts/genksyms/keywords.gperf" 162#line 47 "scripts/genksyms/keywords.gperf"
172 {"__volatile", VOLATILE_KEYW}, 163 {"union", UNION_KEYW},
173 {""}, {""}, 164 {""}, {""},
174#line 50 "scripts/genksyms/keywords.gperf" 165#line 48 "scripts/genksyms/keywords.gperf"
175 {"unsigned", UNSIGNED_KEYW}, 166 {"unsigned", UNSIGNED_KEYW},
176 {""}, 167#line 49 "scripts/genksyms/keywords.gperf"
177#line 44 "scripts/genksyms/keywords.gperf" 168 {"void", VOID_KEYW},
169#line 42 "scripts/genksyms/keywords.gperf"
178 {"short", SHORT_KEYW}, 170 {"short", SHORT_KEYW},
179#line 40 "scripts/genksyms/keywords.gperf" 171 {""}, {""},
172#line 50 "scripts/genksyms/keywords.gperf"
173 {"volatile", VOLATILE_KEYW},
174 {""},
175#line 37 "scripts/genksyms/keywords.gperf"
176 {"float", FLOAT_KEYW},
177#line 34 "scripts/genksyms/keywords.gperf"
178 {"double", DOUBLE_KEYW},
179 {""},
180#line 5 "scripts/genksyms/keywords.gperf"
181 {"EXPORT_SYMBOL", EXPORT_SYMBOL_KEYW},
182 {""}, {""},
183#line 38 "scripts/genksyms/keywords.gperf"
180 {"inline", INLINE_KEYW}, 184 {"inline", INLINE_KEYW},
185#line 6 "scripts/genksyms/keywords.gperf"
186 {"EXPORT_SYMBOL_GPL", EXPORT_SYMBOL_KEYW},
187#line 41 "scripts/genksyms/keywords.gperf"
188 {"register", REGISTER_KEYW},
181 {""}, 189 {""},
182#line 52 "scripts/genksyms/keywords.gperf" 190#line 22 "scripts/genksyms/keywords.gperf"
183 {"volatile", VOLATILE_KEYW},
184#line 42 "scripts/genksyms/keywords.gperf"
185 {"long", LONG_KEYW},
186#line 24 "scripts/genksyms/keywords.gperf"
187 {"_Bool", BOOL_KEYW}, 191 {"_Bool", BOOL_KEYW},
188 {""}, {""},
189#line 43 "scripts/genksyms/keywords.gperf" 192#line 43 "scripts/genksyms/keywords.gperf"
190 {"register", REGISTER_KEYW}, 193 {"signed", SIGNED_KEYW},
191#line 51 "scripts/genksyms/keywords.gperf" 194 {""}, {""},
192 {"void", VOID_KEYW}, 195#line 40 "scripts/genksyms/keywords.gperf"
193#line 39 "scripts/genksyms/keywords.gperf" 196 {"long", LONG_KEYW}
194 {"float", FLOAT_KEYW},
195#line 36 "scripts/genksyms/keywords.gperf"
196 {"double", DOUBLE_KEYW},
197 {""}, {""}, {""}, {""},
198#line 45 "scripts/genksyms/keywords.gperf"
199 {"signed", SIGNED_KEYW}
200 }; 197 };
201 198
202 if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH) 199 if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
diff --git a/scripts/genksyms/keywords.gperf b/scripts/genksyms/keywords.gperf
index 8abe7ab8d88f..5ef3733225fb 100644
--- a/scripts/genksyms/keywords.gperf
+++ b/scripts/genksyms/keywords.gperf
@@ -5,8 +5,6 @@ struct resword { const char *name; int token; }
5EXPORT_SYMBOL, EXPORT_SYMBOL_KEYW 5EXPORT_SYMBOL, EXPORT_SYMBOL_KEYW
6EXPORT_SYMBOL_GPL, EXPORT_SYMBOL_KEYW 6EXPORT_SYMBOL_GPL, EXPORT_SYMBOL_KEYW
7EXPORT_SYMBOL_GPL_FUTURE, EXPORT_SYMBOL_KEYW 7EXPORT_SYMBOL_GPL_FUTURE, EXPORT_SYMBOL_KEYW
8EXPORT_UNUSED_SYMBOL, EXPORT_SYMBOL_KEYW
9EXPORT_UNUSED_SYMBOL_GPL, EXPORT_SYMBOL_KEYW
10__asm, ASM_KEYW 8__asm, ASM_KEYW
11__asm__, ASM_KEYW 9__asm__, ASM_KEYW
12__attribute, ATTRIBUTE_KEYW 10__attribute, ATTRIBUTE_KEYW
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 92758120a767..ad2434b26970 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -130,9 +130,18 @@ static int read_symbol(FILE *in, struct sym_entry *s)
130static int symbol_valid(struct sym_entry *s) 130static int symbol_valid(struct sym_entry *s)
131{ 131{
132 /* Symbols which vary between passes. Passes 1 and 2 must have 132 /* Symbols which vary between passes. Passes 1 and 2 must have
133 * identical symbol lists. 133 * identical symbol lists. The kallsyms_* symbols below are only added
134 * after pass 1, they would be included in pass 2 when --all-symbols is
135 * specified so exclude them to get a stable symbol list.
134 */ 136 */
135 static char *special_symbols[] = { 137 static char *special_symbols[] = {
138 "kallsyms_addresses",
139 "kallsyms_num_syms",
140 "kallsyms_names",
141 "kallsyms_markers",
142 "kallsyms_token_table",
143 "kallsyms_token_index",
144
136 /* Exclude linker generated symbols which vary between passes */ 145 /* Exclude linker generated symbols which vary between passes */
137 "_SDA_BASE_", /* ppc */ 146 "_SDA_BASE_", /* ppc */
138 "_SDA2_BASE_", /* ppc */ 147 "_SDA2_BASE_", /* ppc */
@@ -164,9 +173,7 @@ static int symbol_valid(struct sym_entry *s)
164 } 173 }
165 174
166 /* Exclude symbols which vary between passes. */ 175 /* Exclude symbols which vary between passes. */
167 if (strstr((char *)s->sym + offset, "_compiled.") || 176 if (strstr((char *)s->sym + offset, "_compiled."))
168 strncmp((char*)s->sym + offset, "__compound_literal.", 19) == 0 ||
169 strncmp((char*)s->sym + offset, "__compound_literal$", 19) == 0)
170 return 0; 177 return 0;
171 178
172 for (i = 0; special_symbols[i]; i++) 179 for (i = 0; special_symbols[i]; i++)
@@ -543,10 +550,8 @@ int main(int argc, char **argv)
543 usage(); 550 usage();
544 551
545 read_map(stdin); 552 read_map(stdin);
546 if (table_cnt) { 553 sort_symbols();
547 sort_symbols(); 554 optimize_token_table();
548 optimize_token_table();
549 }
550 write_src(); 555 write_src();
551 556
552 return 0; 557 return 0;
diff --git a/scripts/mksysmap b/scripts/mksysmap
index 1db316a3712b..6e133a0bae7a 100644
--- a/scripts/mksysmap
+++ b/scripts/mksysmap
@@ -37,6 +37,9 @@
37 37
38# readprofile starts reading symbols when _stext is found, and 38# readprofile starts reading symbols when _stext is found, and
39# continue until it finds a symbol which is not either of 'T', 't', 39# continue until it finds a symbol which is not either of 'T', 't',
40# 'W' or 'w'. 40# 'W' or 'w'. __crc_ are 'A' and placed in the middle
41# so we just ignore them to let readprofile continue to work.
42# (At least sparc64 has __crc_ in the middle).
43
44$NM -n $1 | grep -v '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)' > $2
41 45
42$NM -n $1 | grep -v '\( [aNUw] \)\|\( \$[adt]\)' > $2
diff --git a/scripts/strip-symbols b/scripts/strip-symbols
deleted file mode 100644
index 29ee8c1a014b..000000000000
--- a/scripts/strip-symbols
+++ /dev/null
@@ -1,22 +0,0 @@
1<*>
2*.h
3__compound_literal[$.][0-9]*
4__crc_[a-zA-Z_]*
5__exitcall_[a-zA-Z_]*
6__func__[$.][0-9]*
7__FUNCTION__[$.][0-9]*
8gcc[0-9]_compiled[$.]
9__initcall_[a-zA-Z_]*
10__kcrctab_[a-zA-Z_]*
11__kstrtab_[a-zA-Z_]*
12__ksymtab_[a-zA-Z_]*
13__mod_[a-zA-Z_]*[0-9]
14__module_depends
15__param_[a-zA-Z_]*
16__pci_fixup_*PCI_ANY_IDPCI_ANY_ID*
17__pci_fixup_*PCI_ANY_IDPCI_DEVICE_ID_*
18__pci_fixup_*PCI_VENDOR_ID_*PCI_ANY_ID*
19__pci_fixup_*PCI_VENDOR_ID_*PCI_DEVICE_ID_*
20__PRETTY_FUNCTION__[$.][0-9]*
21__setup_[a-zA-Z_]*
22____versions
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-09 23:26:36 -0500