diff options
Diffstat (limited to 'scripts')
27 files changed, 1222 insertions, 1062 deletions
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index 0168d6c37075..59620b1554e0 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include @@ -44,6 +44,43 @@ define filechk fi endef +###### +# gcc support functions +# See documentation in Documentation/kbuild/makefiles.txt + +# as-option +# Usage: cflags-y += $(call as-option, -Wa$(comma)-isa=foo,) + +as-option = $(shell if $(CC) $(CFLAGS) $(1) -Wa,-Z -c -o /dev/null \ + -xassembler /dev/null > /dev/null 2>&1; then echo "$(1)"; \ + else echo "$(2)"; fi ;) + +# cc-option +# Usage: cflags-y += $(call cc-option, -march=winchip-c6, -march=i586) + +cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \ + > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;) + +# cc-option-yn +# Usage: flag := $(call cc-option-yn, -march=winchip-c6) +cc-option-yn = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \ + > /dev/null 2>&1; then echo "y"; else echo "n"; fi;) + +# cc-option-align +# Prefix align with either -falign or -malign +cc-option-align = $(subst -functions=0,,\ + $(call cc-option,-falign-functions=0,-malign-functions=0)) + +# cc-version +# Usage gcc-ver := $(call cc-version, $(CC)) +cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh \ + $(if $(1), $(1), $(CC))) + +# cc-ifversion +# Usage: EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1) +cc-ifversion = $(shell if [ $(call cc-version, $(CC)) $(1) $(2) ]; then \ + echo $(3); fi;) + ### # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.build obj= # Usage: @@ -51,8 +88,7 @@ endef build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj # If quiet is set, only print short version of command -cmd = @$(if $($(quiet)cmd_$(1)),\ - echo ' $(call escsq,$($(quiet)cmd_$(1)))' &&) $(cmd_$(1)) +cmd = @$(echo-cmd) $(cmd_$(1)) # Add $(obj)/ for paths that is not absolute objectify = $(foreach o,$(1),$(if $(filter /%,$(o)),$(o),$(obj)/$(o))) @@ -75,30 +111,33 @@ endif echo-cmd = $(if $($(quiet)cmd_$(1)), \ echo ' $(call escsq,$($(quiet)cmd_$(1)))';) +make-cmd = $(subst \#,\\\#,$(subst $$,$$$$,$(call escsq,$(cmd_$(1))))) + # function to only execute the passed command if necessary # >'< substitution is for echo to work, >$< substitution to preserve $ when reloading .cmd file # note: when using inline perl scripts [perl -e '...$$t=1;...'] in $(cmd_xxx) double $$ your perl vars -# -if_changed = $(if $(strip $? $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ), \ +# +if_changed = $(if $(strip $(filter-out $(PHONY),$?) \ + $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ), \ @set -e; \ - $(echo-cmd) \ - $(cmd_$(1)); \ - echo 'cmd_$@ := $(subst $$,$$$$,$(call escsq,$(cmd_$(1))))' > $(@D)/.$(@F).cmd) + $(echo-cmd) $(cmd_$(1)); \ + echo 'cmd_$@ := $(make-cmd)' > $(@D)/.$(@F).cmd) # execute the command and also postprocess generated .d dependencies # file -if_changed_dep = $(if $(strip $? $(filter-out FORCE $(wildcard $^),$^)\ - $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ), \ +if_changed_dep = $(if $(strip $(filter-out $(PHONY),$?) \ + $(filter-out FORCE $(wildcard $^),$^) \ + $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ), \ @set -e; \ - $(echo-cmd) \ - $(cmd_$(1)); \ - scripts/basic/fixdep $(depfile) $@ '$(subst $$,$$$$,$(call escsq,$(cmd_$(1))))' > $(@D)/.$(@F).tmp; \ + $(echo-cmd) $(cmd_$(1)); \ + scripts/basic/fixdep $(depfile) $@ '$(make-cmd)' > $(@D)/.$(@F).tmp; \ rm -f $(depfile); \ mv -f $(@D)/.$(@F).tmp $(@D)/.$(@F).cmd) # Usage: $(call if_changed_rule,foo) # will check if $(cmd_foo) changed, or any of the prequisites changed, # and if so will execute $(rule_foo) -if_changed_rule = $(if $(strip $? $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ),\ +if_changed_rule = $(if $(strip $(filter-out $(PHONY),$?) \ + $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ),\ @set -e; \ $(rule_$(1))) diff --git a/scripts/Makefile.build b/scripts/Makefile.build index c33e62bde6b0..e48e60da3040 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -4,17 +4,18 @@ src := $(obj) -.PHONY: __build +PHONY := __build __build: # Read .config if it exist, otherwise ignore -include .config +include scripts/Kbuild.include + # The filename Kbuild has precedence over Makefile kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src)) include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile) -include scripts/Kbuild.include include scripts/Makefile.lib ifdef host-progs @@ -128,7 +129,7 @@ $(multi-objs-y:.o=.s) : modname = $(modname-multi) $(multi-objs-y:.o=.lst) : modname = $(modname-multi) quiet_cmd_cc_s_c = CC $(quiet_modtag) $@ -cmd_cc_s_c = $(CC) $(c_flags) -S -o $@ $< +cmd_cc_s_c = $(CC) $(c_flags) -fverbose-asm -S -o $@ $< %.s: %.c FORCE $(call if_changed_dep,cc_s_c) @@ -165,7 +166,7 @@ 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) \ + | $(GENKSYMS) -a $(ARCH) \ > $(@D)/.tmp_$(@F:.o=.ver); \ \ $(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \ @@ -177,12 +178,10 @@ cmd_modversions = \ endif define rule_cc_o_c - $(if $($(quiet)cmd_checksrc),echo ' $($(quiet)cmd_checksrc)';) \ - $(cmd_checksrc) \ - $(if $($(quiet)cmd_cc_o_c),echo ' $(call escsq,$($(quiet)cmd_cc_o_c))';) \ - $(cmd_cc_o_c); \ + $(call echo-cmd,checksrc) $(cmd_checksrc) \ + $(call echo-cmd,cc_o_c) $(cmd_cc_o_c); \ $(cmd_modversions) \ - scripts/basic/fixdep $(depfile) $@ '$(call escsq,$(cmd_cc_o_c))' > $(@D)/.$(@F).tmp; \ + scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,cc_o_c)' > $(@D)/.$(@F).tmp; \ rm -f $(depfile); \ mv -f $(@D)/.$(@F).tmp $(@D)/.$(@F).cmd endef @@ -309,14 +308,14 @@ targets += $(multi-used-y) $(multi-used-m) # Descending # --------------------------------------------------------------------------- -.PHONY: $(subdir-ym) +PHONY += $(subdir-ym) $(subdir-ym): $(Q)$(MAKE) $(build)=$@ # Add FORCE to the prequisites of a target to force it to be always rebuilt. # --------------------------------------------------------------------------- -.PHONY: FORCE +PHONY += FORCE FORCE: @@ -331,3 +330,9 @@ cmd_files := $(wildcard $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) ifneq ($(cmd_files),) include $(cmd_files) endif + + +# Declare the contents of the .PHONY variable as phony. We keep that +# information in a variable se we can use it in if_changed and friends. + +.PHONY: $(PHONY) diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean index 8974ea5fc878..cff33498fa16 100644 --- a/scripts/Makefile.clean +++ b/scripts/Makefile.clean @@ -4,7 +4,7 @@ src := $(obj) -.PHONY: __clean +PHONY := __clean __clean: # Shorthand for $(Q)$(MAKE) scripts/Makefile.clean obj=dir @@ -87,10 +87,16 @@ endif # Descending # --------------------------------------------------------------------------- -.PHONY: $(subdir-ymn) +PHONY += $(subdir-ymn) $(subdir-ymn): $(Q)$(MAKE) $(clean)=$@ # If quiet is set, only print short version of command cmd = @$(if $($(quiet)cmd_$(1)),echo ' $($(quiet)cmd_$(1))' &&) $(cmd_$(1)) + + +# Declare the contents of the .PHONY variable as phony. We keep that +# information in a variable se we can use it in if_changed and friends. + +.PHONY: $(PHONY) diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst index 23fd1bdc25ce..2686dd5dce8c 100644 --- a/scripts/Makefile.modinst +++ b/scripts/Makefile.modinst @@ -2,7 +2,7 @@ # Installing modules # ========================================================================== -.PHONY: __modinst +PHONY := __modinst __modinst: include scripts/Kbuild.include @@ -12,7 +12,7 @@ include scripts/Kbuild.include __modules := $(sort $(shell grep -h '\.ko' /dev/null $(wildcard $(MODVERDIR)/*.mod))) modules := $(patsubst %.o,%.ko,$(wildcard $(__modules:.ko=.o))) -.PHONY: $(modules) +PHONY += $(modules) __modinst: $(modules) @: @@ -27,3 +27,9 @@ modinst_dir = $(if $(KBUILD_EXTMOD),$(ext-mod-dir),kernel/$(@D)) $(modules): $(call cmd,modules_install,$(MODLIB)/$(modinst_dir)) + + +# Declare the contents of the .PHONY variable as phony. We keep that +# information in a variable se we can use it in if_changed and friends. + +.PHONY: $(PHONY) diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index bf96a61d4b86..0e056cffffdb 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -4,7 +4,7 @@ # # Stage one of module building created the following: # a) The individual .o files used for the module -# b) A <module>.o file wich is the .o files above linked together +# b) A <module>.o file which is the .o files above linked together # c) A <module>.mod file in $(MODVERDIR)/, listing the name of the # the preliminary <module>.o file, plus all .o files @@ -32,14 +32,15 @@ # Step 4 is solely used to allow module versioning in external modules, # where the CRC of each module is retrieved from the Module.symers file. -.PHONY: _modpost +PHONY := _modpost _modpost: __modpost include .config include scripts/Kbuild.include include scripts/Makefile.lib -symverfile := $(objtree)/Module.symvers +kernelsymfile := $(objtree)/Module.symvers +modulesymfile := $(KBUILD_EXTMOD)/Modules.symvers # Step 1), find all modules listed in $(MODVERDIR)/ __modules := $(sort $(shell grep -h '\.ko' /dev/null $(wildcard $(MODVERDIR)/*.mod))) @@ -54,10 +55,12 @@ quiet_cmd_modpost = MODPOST cmd_modpost = scripts/mod/modpost \ $(if $(CONFIG_MODVERSIONS),-m) \ $(if $(CONFIG_MODULE_SRCVERSION_ALL),-a,) \ - $(if $(KBUILD_EXTMOD),-i,-o) $(symverfile) \ + $(if $(KBUILD_EXTMOD),-i,-o) $(kernelsymfile) \ + $(if $(KBUILD_EXTMOD),-I $(modulesymfile)) \ + $(if $(KBUILD_EXTMOD),-o $(modulesymfile)) \ $(filter-out FORCE,$^) -.PHONY: __modpost +PHONY += __modpost __modpost: $(wildcard vmlinux) $(modules:.ko=.o) FORCE $(call cmd,modpost) @@ -94,7 +97,7 @@ targets += $(modules) # Add FORCE to the prequisites of a target to force it to be always rebuilt. # --------------------------------------------------------------------------- -.PHONY: FORCE +PHONY += FORCE FORCE: @@ -109,3 +112,9 @@ cmd_files := $(wildcard $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) ifneq ($(cmd_files),) include $(cmd_files) endif + + +# Declare the contents of the .PHONY variable as phony. We keep that +# information in a variable se we can use it in if_changed and friends. + +.PHONY: $(PHONY) diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c index 679124b11e12..668a11a8b383 100644 --- a/scripts/basic/fixdep.c +++ b/scripts/basic/fixdep.c @@ -132,20 +132,10 @@ void usage(void) /* * Print out the commandline prefixed with cmd_<target filename> := - * If commandline contains '#' escape with '\' so make to not see - * the '#' as a start-of-comment symbol - **/ + */ void print_cmdline(void) { - char *p = cmdline; - - printf("cmd_%s := ", target); - for (; *p; p++) { - if (*p == '#') - printf("\\"); - printf("%c", *p); - } - printf("\n\n"); + printf("cmd_%s := %s\n\n", target, cmdline); } char * str_config = NULL; diff --git a/scripts/checkconfig.pl b/scripts/checkconfig.pl deleted file mode 100755 index ca1f231b15a6..000000000000 --- a/scripts/checkconfig.pl +++ /dev/null @@ -1,65 +0,0 @@ -#! /usr/bin/perl -# -# checkconfig: find uses of CONFIG_* names without matching definitions. -# Copyright abandoned, 1998, Michael Elizabeth Chastain <mailto:mec@shout.net>. - -use integer; - -$| = 1; - -foreach $file (@ARGV) -{ - # Open this file. - open(FILE, $file) || die "Can't open $file: $!\n"; - - # Initialize variables. - my $fInComment = 0; - my $fInString = 0; - my $fUseConfig = 0; - my $iLinuxConfig = 0; - my %configList = (); - - LINE: while ( <FILE> ) - { - # Strip comments. - $fInComment && (s+^.*?\*/+ +o ? ($fInComment = 0) : next); - m+/\*+o && (s+/\*.*?\*/+ +go, (s+/\*.*$+ +o && ($fInComment = 1))); - - # Pick up definitions. - if ( m/^\s*#/o ) - { - $iLinuxConfig = $. if m/^\s*#\s*include\s*"linux\/config\.h"/o; - $configList{uc $1} = 1 if m/^\s*#\s*include\s*"config\/(\S*)\.h"/o; - } - - # Strip strings. - $fInString && (s+^.*?"+ +o ? ($fInString = 0) : next); - m+"+o && (s+".*?"+ +go, (s+".*$+ +o && ($fInString = 1))); - - # Pick up definitions. - if ( m/^\s*#/o ) - { - $iLinuxConfig = $. if m/^\s*#\s*include\s*<linux\/config\.h>/o; - $configList{uc $1} = 1 if m/^\s*#\s*include\s*<config\/(\S*)\.h>/o; - $configList{$1} = 1 if m/^\s*#\s*define\s+CONFIG_(\w*)/o; - $configList{$1} = 1 if m/^\s*#\s*undef\s+CONFIG_(\w*)/o; - } - - # Look for usages. - next unless m/CONFIG_/o; - WORD: while ( m/\bCONFIG_(\w+)/og ) - { - $fUseConfig = 1; - last LINE if $iLinuxConfig; - next WORD if exists $configList{$1}; - print "$file: $.: need CONFIG_$1.\n"; - $configList{$1} = 0; - } - } - - # Report superfluous includes. - if ( $iLinuxConfig && ! $fUseConfig ) - { print "$file: $iLinuxConfig: linux/config.h not needed.\n"; } - - close(FILE); -} diff --git a/scripts/extract-ikconfig b/scripts/extract-ikconfig index d9f9f34b22ab..8187e6f0dc2f 100755 --- a/scripts/extract-ikconfig +++ b/scripts/extract-ikconfig @@ -4,6 +4,7 @@ # $arg1 is [b]zImage filename binoffset="./scripts/binoffset" +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" @@ -20,7 +21,7 @@ function dump_config { let start="$start + 8" let size="$end - $start" - head --bytes="$end" "$file" | tail --bytes="$size" | zcat + dd if="$file" ibs=1 skip="$start" count="$size" 2>/dev/null | zcat clean_up exit 0 @@ -45,7 +46,7 @@ then exit 1 fi -TMPFILE="/tmp/ikconfig-$$" +TMPFILE=`mktemp -t ikconfig-XXXXXX` || exit 1 image="$1" # vmlinux: Attempt to dump the configuration from the file directly diff --git a/scripts/genksyms/genksyms.c b/scripts/genksyms/genksyms.c index 416a694b0998..5b0344e20d61 100644 --- a/scripts/genksyms/genksyms.c +++ b/scripts/genksyms/genksyms.c @@ -29,481 +29,421 @@ #include <stdarg.h> #ifdef __GNU_LIBRARY__ #include <getopt.h> -#endif /* __GNU_LIBRARY__ */ +#endif /* __GNU_LIBRARY__ */ #include "genksyms.h" - /*----------------------------------------------------------------------*/ #define HASH_BUCKETS 4096 static struct symbol *symtab[HASH_BUCKETS]; -FILE *debugfile; +static FILE *debugfile; int cur_line = 1; -char *cur_filename, *output_directory; +char *cur_filename; -int flag_debug, flag_dump_defs, flag_warnings; +static int flag_debug, flag_dump_defs, flag_warnings; +static const char *arch = ""; +static const char *mod_prefix = ""; static int errors; static int nsyms; static struct symbol *expansion_trail; -static const char * const symbol_type_name[] = { - "normal", "typedef", "enum", "struct", "union" +static const char *const symbol_type_name[] = { + "normal", "typedef", "enum", "struct", "union" }; +static int equal_list(struct string_list *a, struct string_list *b); +static void print_list(FILE * f, struct string_list *list); + /*----------------------------------------------------------------------*/ -static const unsigned int crctab32[] = -{ - 0x00000000U, 0x77073096U, 0xee0e612cU, 0x990951baU, 0x076dc419U, - 0x706af48fU, 0xe963a535U, 0x9e6495a3U, 0x0edb8832U, 0x79dcb8a4U, - 0xe0d5e91eU, 0x97d2d988U, 0x09b64c2bU, 0x7eb17cbdU, 0xe7b82d07U, - 0x90bf1d91U, 0x1db71064U, 0x6ab020f2U, 0xf3b97148U, 0x84be41deU, - 0x1adad47dU, 0x6ddde4ebU, 0xf4d4b551U, 0x83d385c7U, 0x136c9856U, - 0x646ba8c0U, 0xfd62f97aU, 0x8a65c9ecU, 0x14015c4fU, 0x63066cd9U, - 0xfa0f3d63U, 0x8d080df5U, 0x3b6e20c8U, 0x4c69105eU, 0xd56041e4U, - 0xa2677172U, 0x3c03e4d1U, 0x4b04d447U, 0xd20d85fdU, 0xa50ab56bU, - 0x35b5a8faU, 0x42b2986cU, 0xdbbbc9d6U, 0xacbcf940U, 0x32d86ce3U, - 0x45df5c75U, 0xdcd60dcfU, 0xabd13d59U, 0x26d930acU, 0x51de003aU, - 0xc8d75180U, 0xbfd06116U, 0x21b4f4b5U, 0x56b3c423U, 0xcfba9599U, - 0xb8bda50fU, 0x2802b89eU, 0x5f058808U, 0xc60cd9b2U, 0xb10be924U, - 0x2f6f7c87U, 0x58684c11U, 0xc1611dabU, 0xb6662d3dU, 0x76dc4190U, - 0x01db7106U, 0x98d220bcU, 0xefd5102aU, 0x71b18589U, 0x06b6b51fU, - 0x9fbfe4a5U, 0xe8b8d433U, 0x7807c9a2U, 0x0f00f934U, 0x9609a88eU, - 0xe10e9818U, 0x7f6a0dbbU, 0x086d3d2dU, 0x91646c97U, 0xe6635c01U, - 0x6b6b51f4U, 0x1c6c6162U, 0x856530d8U, 0xf262004eU, 0x6c0695edU, - 0x1b01a57bU, 0x8208f4c1U, 0xf50fc457U, 0x65b0d9c6U, 0x12b7e950U, - 0x8bbeb8eaU, 0xfcb9887cU, 0x62dd1ddfU, 0x15da2d49U, 0x8cd37cf3U, - 0xfbd44c65U, 0x4db26158U, 0x3ab551ceU, 0xa3bc0074U, 0xd4bb30e2U, - 0x4adfa541U, 0x3dd895d7U, 0xa4d1c46dU, 0xd3d6f4fbU, 0x4369e96aU, - 0x346ed9fcU, 0xad678846U, 0xda60b8d0U, 0x44042d73U, 0x33031de5U, - 0xaa0a4c5fU, 0xdd0d7cc9U, 0x5005713cU, 0x270241aaU, 0xbe0b1010U, - 0xc90c2086U, 0x5768b525U, 0x206f85b3U, 0xb966d409U, 0xce61e49fU, - 0x5edef90eU, 0x29d9c998U, 0xb0d09822U, 0xc7d7a8b4U, 0x59b33d17U, - 0x2eb40d81U, 0xb7bd5c3bU, 0xc0ba6cadU, 0xedb88320U, 0x9abfb3b6U, - 0x03b6e20cU, 0x74b1d29aU, 0xead54739U, 0x9dd277afU, 0x04db2615U, - 0x73dc1683U, 0xe3630b12U, 0x94643b84U, 0x0d6d6a3eU, 0x7a6a5aa8U, - 0xe40ecf0bU, 0x9309ff9dU, 0x0a00ae27U, 0x7d079eb1U, 0xf00f9344U, - 0x8708a3d2U, 0x1e01f268U, 0x6906c2feU, 0xf762575dU, 0x806567cbU, - 0x196c3671U, 0x6e6b06e7U, 0xfed41b76U, 0x89d32be0U, 0x10da7a5aU, - 0x67dd4accU, 0xf9b9df6fU, 0x8ebeeff9U, 0x17b7be43U, 0x60b08ed5U, - 0xd6d6a3e8U, 0xa1d1937eU, 0x38d8c2c4U, 0x4fdff252U, 0xd1bb67f1U, - 0xa6bc5767U, 0x3fb506ddU, 0x48b2364bU, 0xd80d2bdaU, 0xaf0a1b4cU, - 0x36034af6U, 0x41047a60U, 0xdf60efc3U, 0xa867df55U, 0x316e8eefU, - 0x4669be79U, 0xcb61b38cU, 0xbc66831aU, 0x256fd2a0U, 0x5268e236U, - 0xcc0c7795U, 0xbb0b4703U, 0x220216b9U, 0x5505262fU, 0xc5ba3bbeU, - 0xb2bd0b28U, 0x2bb45a92U, 0x5cb36a04U, 0xc2d7ffa7U, 0xb5d0cf31U, - 0x2cd99e8bU, 0x5bdeae1dU, 0x9b64c2b0U, 0xec63f226U, 0x756aa39cU, - 0x026d930aU, 0x9c0906a9U, 0xeb0e363fU, 0x72076785U, 0x05005713U, - 0x95bf4a82U, 0xe2b87a14U, 0x7bb12baeU, 0x0cb61b38U, 0x92d28e9bU, - 0xe5d5be0dU, 0x7cdcefb7U, 0x0bdbdf21U, 0x86d3d2d4U, 0xf1d4e242U, - 0x68ddb3f8U, 0x1fda836eU, 0x81be16cdU, 0xf6b9265bU, 0x6fb077e1U, - 0x18b74777U, 0x88085ae6U, 0xff0f6a70U, 0x66063bcaU, 0x11010b5cU, - 0x8f659effU, 0xf862ae69U, 0x616bffd3U, 0x166ccf45U, 0xa00ae278U, - 0xd70dd2eeU, 0x4e048354U, 0x3903b3c2U, 0xa7672661U, 0xd06016f7U, - 0x4969474dU, 0x3e6e77dbU, 0xaed16a4aU, 0xd9d65adcU, 0x40df0b66U, - 0x37d83bf0U, 0xa9bcae53U, 0xdebb9ec5U, 0x47b2cf7fU, 0x30b5ffe9U, - 0xbdbdf21cU, 0xcabac28aU, 0x53b39330U, 0x24b4a3a6U, 0xbad03605U, - 0xcdd70693U, 0x54de5729U, 0x23d967bfU, 0xb3667a2eU, 0xc4614ab8U, - 0x5d681b02U, 0x2a6f2b94U, 0xb40bbe37U, 0xc30c8ea1U, 0x5a05df1bU, - 0x2d02ef8dU +static const unsigned int crctab32[] = { + 0x00000000U, 0x77073096U, 0xee0e612cU, 0x990951baU, 0x076dc419U, + 0x706af48fU, 0xe963a535U, 0x9e6495a3U, 0x0edb8832U, 0x79dcb8a4U, + 0xe0d5e91eU, 0x97d2d988U, 0x09b64c2bU, 0x7eb17cbdU, 0xe7b82d07U, + 0x90bf1d91U, 0x1db71064U, 0x6ab020f2U, 0xf3b97148U, 0x84be41deU, + 0x1adad47dU, 0x6ddde4ebU, 0xf4d4b551U, 0x83d385c7U, 0x136c9856U, + 0x646ba8c0U, 0xfd62f97aU, 0x8a65c9ecU, 0x14015c4fU, 0x63066cd9U, + 0xfa0f3d63U, 0x8d080df5U, 0x3b6e20c8U, 0x4c69105eU, 0xd56041e4U, + 0xa2677172U, 0x3c03e4d1U, 0x4b04d447U, 0xd20d85fdU, 0xa50ab56bU, + 0x35b5a8faU, 0x42b2986cU, 0xdbbbc9d6U, 0xacbcf940U, 0x32d86ce3U, + 0x45df5c75U, 0xdcd60dcfU, 0xabd13d59U, 0x26d930acU, 0x51de003aU, + 0xc8d75180U, 0xbfd06116U, 0x21b4f4b5U, 0x56b3c423U, 0xcfba9599U, + 0xb8bda50fU, 0x2802b89eU, 0x5f058808U, 0xc60cd9b2U, 0xb10be924U, + 0x2f6f7c87U, 0x58684c11U, 0xc1611dabU, 0xb6662d3dU, 0x76dc4190U, + 0x01db7106U, 0x98d220bcU, 0xefd5102aU, 0x71b18589U, 0x06b6b51fU, + 0x9fbfe4a5U, 0xe8b8d433U, 0x7807c9a2U, 0x0f00f934U, 0x9609a88eU, + 0xe10e9818U, 0x7f6a0dbbU, 0x086d3d2dU, 0x91646c97U, 0xe6635c01U, + 0x6b6b51f4U, 0x1c6c6162U, 0x856530d8U, 0xf262004eU, 0x6c0695edU, + 0x1b01a57bU, 0x8208f4c1U, 0xf50fc457U, 0x65b0d9c6U, 0x12b7e950U, + 0x8bbeb8eaU, 0xfcb9887cU, 0x62dd1ddfU, 0x15da2d49U, 0x8cd37cf3U, + 0xfbd44c65U, 0x4db26158U, 0x3ab551ceU, 0xa3bc0074U, 0xd4bb30e2U, + 0x4adfa541U, 0x3dd895d7U, 0xa4d1c46dU, 0xd3d6f4fbU, 0x4369e96aU, + 0x346ed9fcU, 0xad678846U, 0xda60b8d0U, 0x44042d73U, 0x33031de5U, + 0xaa0a4c5fU, 0xdd0d7cc9U, 0x5005713cU, 0x270241aaU, 0xbe0b1010U, + 0xc90c2086U, 0x5768b525U, 0x206f85b3U, 0xb966d409U, 0xce61e49fU, + 0x5edef90eU, 0x29d9c998U, 0xb0d09822U, 0xc7d7a8b4U, 0x59b33d17U, + 0x2eb40d81U, 0xb7bd5c3bU, 0xc0ba6cadU, 0xedb88320U, 0x9abfb3b6U, + 0x03b6e20cU, 0x74b1d29aU, 0xead54739U, 0x9dd277afU, 0x04db2615U, + 0x73dc1683U, 0xe3630b12U, 0x94643b84U, 0x0d6d6a3eU, 0x7a6a5aa8U, + 0xe40ecf0bU, 0x9309ff9dU, 0x0a00ae27U, 0x7d079eb1U, 0xf00f9344U, + 0x8708a3d2U, 0x1e01f268U, 0x6906c2feU, 0xf762575dU, 0x806567cbU, + 0x196c3671U, 0x6e6b06e7U, 0xfed41b76U, 0x89d32be0U, 0x10da7a5aU, + 0x67dd4accU, 0xf9b9df6fU, 0x8ebeeff9U, 0x17b7be43U, 0x60b08ed5U, + 0xd6d6a3e8U, 0xa1d1937eU, 0x38d8c2c4U, 0x4fdff252U, 0xd1bb67f1U, + 0xa6bc5767U, 0x3fb506ddU, 0x48b2364bU, 0xd80d2bdaU, 0xaf0a1b4cU, + 0x36034af6U, 0x41047a60U, 0xdf60efc3U, 0xa867df55U, 0x316e8eefU, + 0x4669be79U, 0xcb61b38cU, 0xbc66831aU, 0x256fd2a0U, 0x5268e236U, + 0xcc0c7795U, 0xbb0b4703U, 0x220216b9U, 0x5505262fU, 0xc5ba3bbeU, + 0xb2bd0b28U, 0x2bb45a92U, 0x5cb36a04U, 0xc2d7ffa7U, 0xb5d0cf31U, + 0x2cd99e8bU, 0x5bdeae1dU, 0x9b64c2b0U, 0xec63f226U, 0x756aa39cU, + 0x026d930aU, 0x9c0906a9U, 0xeb0e363fU, 0x72076785U, 0x05005713U, + 0x95bf4a82U, 0xe2b87a14U, 0x7bb12baeU, 0x0cb61b38U, 0x92d28e9bU, + 0xe5d5be0dU, 0x7cdcefb7U, 0x0bdbdf21U, 0x86d3d2d4U, 0xf1d4e242U, + 0x68ddb3f8U, 0x1fda836eU, 0x81be16cdU, 0xf6b9265bU, 0x6fb077e1U, + 0x18b74777U, 0x88085ae6U, 0xff0f6a70U, 0x66063bcaU, 0x11010b5cU, + 0x8f659effU, 0xf862ae69U, 0x616bffd3U, 0x166ccf45U, 0xa00ae278U, + 0xd70dd2eeU, 0x4e048354U, 0x3903b3c2U, 0xa7672661U, 0xd06016f7U, + 0x4969474dU, 0x3e6e77dbU, 0xaed16a4aU, 0xd9d65adcU, 0x40df0b66U, + 0x37d83bf0U, 0xa9bcae53U, 0xdebb9ec5U, 0x47b2cf7fU, 0x30b5ffe9U, + 0xbdbdf21cU, 0xcabac28aU, 0x53b39330U, 0x24b4a3a6U, 0xbad03605U, + 0xcdd70693U, 0x54de5729U, 0x23d967bfU, 0xb3667a2eU, 0xc4614ab8U, + 0x5d681b02U, 0x2a6f2b94U, 0xb40bbe37U, 0xc30c8ea1U, 0x5a05df1bU, + 0x2d02ef8dU }; -static inline unsigned long -partial_crc32_one(unsigned char c, unsigned long crc) +static unsigned long partial_crc32_one(unsigned char c, unsigned long crc) { - return crctab32[(crc ^ c) & 0xff] ^ (crc >> 8); + return crctab32[(crc ^ c) & 0xff] ^ (crc >> 8); } -static inline unsigned long -partial_crc32(const char *s, unsigned long crc) +static unsigned long partial_crc32(const char *s, unsigned long crc) { - while (*s) - crc = partial_crc32_one(*s++, crc); - return crc; + while (*s) + crc = partial_crc32_one(*s++, crc); + return crc; } -static inline unsigned long -crc32(const char *s) +static unsigned long crc32(const char *s) { - return partial_crc32(s, 0xffffffff) ^ 0xffffffff; + return partial_crc32(s, 0xffffffff) ^ 0xffffffff; } - /*----------------------------------------------------------------------*/ -static inline enum symbol_type -map_to_ns(enum symbol_type t) +static enum symbol_type map_to_ns(enum symbol_type t) { - if (t == SYM_TYPEDEF) - t = SYM_NORMAL; - else if (t == SYM_UNION) - t = SYM_STRUCT; - return t; + if (t == SYM_TYPEDEF) + t = SYM_NORMAL; + else if (t == SYM_UNION) + t = SYM_STRUCT; + return t; } -struct symbol * -find_symbol(const char *name, enum symbol_type ns) +struct symbol *find_symbol(const char *name, enum symbol_type ns) { - unsigned long h = crc32(name) % HASH_BUCKETS; - struct symbol *sym; + unsigned long h = crc32(name) % HASH_BUCKETS; + struct symbol *sym; - for (sym = symtab[h]; sym ; sym = sym->hash_next) - if (map_to_ns(sym->type) == map_to_ns(ns) && strcmp(name, sym->name) == 0) - break; + for (sym = symtab[h]; sym; sym = sym->hash_next) + if (map_to_ns(sym->type) == map_to_ns(ns) && + strcmp(name, sym->name) == 0) + break; - return sym; + return sym; } -struct symbol * -add_symbol(const char *name, enum symbol_type type, struct string_list *defn, int is_extern) +struct symbol *add_symbol(const char *name, enum symbol_type type, + struct string_list *defn, int is_extern) { - unsigned long h = crc32(name) % HASH_BUCKETS; - struct symbol *sym; - - 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)) - error_with_pos("redefinition of %s", name); + unsigned long h = crc32(name) % HASH_BUCKETS; + struct symbol *sym; + + 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)) + error_with_pos("redefinition of %s", name); + return sym; + } + } + + sym = xmalloc(sizeof(*sym)); + sym->name = name; + sym->type = type; + sym->defn = defn; + sym->expansion_trail = NULL; + sym->is_extern = is_extern; + + sym->hash_next = symtab[h]; + symtab[h] = sym; + + if (flag_debug) { + fprintf(debugfile, "Defn for %s %s == <", + symbol_type_name[type], name); + if (is_extern) + fputs("extern ", debugfile); + print_list(debugfile, defn); + fputs(">\n", debugfile); + } + + ++nsyms; return sym; - } - - sym = xmalloc(sizeof(*sym)); - sym->name = name; - sym->type = type; - sym->defn = defn; - sym->expansion_trail = NULL; - sym->is_extern = is_extern; - - sym->hash_next = symtab[h]; - symtab[h] = sym; - - if (flag_debug) - { - fprintf(debugfile, "Defn for %s %s == <", symbol_type_name[type], name); - if (is_extern) - fputs("extern ", debugfile); - print_list(debugfile, defn); - fputs(">\n", debugfile); - } - - ++nsyms; - return sym; } - /*----------------------------------------------------------------------*/ -inline void -free_node(struct string_list *node) +void free_node(struct string_list *node) { - free(node->string); - free(node); + free(node->string); + free(node); } -void -free_list(struct string_list *s, struct string_list *e) +void free_list(struct string_list *s, struct string_list *e) { - while (s != e) - { - struct string_list *next = s->next; - free_node(s); - s = next; - } + while (s != e) { + struct string_list *next = s->next; + free_node(s); + s = next; + } } -inline struct string_list * -copy_node(struct string_list *node) +struct string_list *copy_node(struct string_list *node) { - struct string_list *newnode; + struct string_list *newnode; - newnode = xmalloc(sizeof(*newnode)); - newnode->string = xstrdup(node->string); - newnode->tag = node->tag; + newnode = xmalloc(sizeof(*newnode)); + newnode->string = xstrdup(node->string); + newnode->tag = node->tag; - return newnode; + return newnode; } -struct string_list * -copy_list(struct string_list *s, struct string_list *e) +static int equal_list(struct string_list *a, struct string_list *b) { - struct string_list *h, *p; - - if (s == e) - return NULL; - - p = h = copy_node(s); - while ((s = s->next) != e) - p = p->next = copy_node(s); - p->next = NULL; - - return h; -} + while (a && b) { + if (a->tag != b->tag || strcmp(a->string, b->string)) + return 0; + a = a->next; + b = b->next; + } -int -equal_list(struct string_list *a, struct string_list *b) -{ - while (a && b) - { - if (a->tag != b->tag || strcmp(a->string, b->string)) - return 0; - a = a->next; - b = b->next; - } - - return !a && !b; + return !a && !b; } -static inline void -print_node(FILE *f, struct string_list *list) +static void print_node(FILE * f, struct string_list *list) { - switch (list->tag) - { - case SYM_STRUCT: - putc('s', f); - goto printit; - case SYM_UNION: - putc('u', f); - goto printit; - case SYM_ENUM: - putc('e', f); - goto printit; - case SYM_TYPEDEF: - putc('t', f); - goto printit; - - printit: - putc('#', f); - case SYM_NORMAL: - fputs(list->string, f); - break; - } -} + switch (list->tag) { + case SYM_STRUCT: + putc('s', f); + goto printit; + case SYM_UNION: + putc('u', f); + goto printit; + case SYM_ENUM: + putc('e', f); + goto printit; + case SYM_TYPEDEF: + putc('t', f); + goto printit; -void -print_list(FILE *f, struct string_list *list) -{ - struct string_list **e, **b; - struct string_list *tmp, **tmp2; - int elem = 1; - - if (list == NULL) - { - fputs("(nil)", f); - return; - } - - tmp = list; - while((tmp = tmp->next) != NULL) - elem++; - - b = alloca(elem * sizeof(*e)); - e = b + elem; - tmp2 = e - 1; - - (*tmp2--) = list; - while((list = list->next) != NULL) - *(tmp2--) = list; - - while (b != e) - { - print_node(f, *b++); - putc(' ', f); - } + printit: + putc('#', f); + case SYM_NORMAL: + fputs(list->string, f); + break; + } } -static unsigned long -expand_and_crc_list(struct string_list *list, unsigned long crc) +static void print_list(FILE * f, struct string_list *list) { - struct string_list **e, **b; - struct string_list *tmp, **tmp2; - int elem = 1; - - if (!list) - return crc; + struct string_list **e, **b; + struct string_list *tmp, **tmp2; + int elem = 1; - tmp = list; - while((tmp = tmp->next) != NULL) - elem++; - - b = alloca(elem * sizeof(*e)); - e = b + elem; - tmp2 = e - 1; + if (list == NULL) { + fputs("(nil)", f); + return; + } - *(tmp2--) = list; - while ((list = list->next) != NULL) - *(tmp2--) = list; + tmp = list; + while ((tmp = tmp->next) != NULL) + elem++; - while (b != e) - { - struct string_list *cur; - struct symbol *subsym; + b = alloca(elem * sizeof(*e)); + e = b + elem; + tmp2 = e - 1; - cur = *(b++); - switch (cur->tag) - { - case SYM_NORMAL: - if (flag_dump_defs) - fprintf(debugfile, "%s ", cur->string); - crc = partial_crc32(cur->string, crc); - crc = partial_crc32_one(' ', crc); - break; + (*tmp2--) = list; + while ((list = list->next) != NULL) + *(tmp2--) = list; - case SYM_TYPEDEF: - subsym = find_symbol(cur->string, cur->tag); - if (subsym->expansion_trail) - { - if (flag_dump_defs) - fprintf(debugfile, "%s ", cur->string); - crc = partial_crc32(cur->string, crc); - crc = partial_crc32_one(' ', crc); - } - else - { - subsym->expansion_trail = expansion_trail; - expansion_trail = subsym; - crc = expand_and_crc_list(subsym->defn, crc); - } - break; + while (b != e) { + print_node(f, *b++); + putc(' ', f); + } +} - case SYM_STRUCT: - case SYM_UNION: - case SYM_ENUM: - subsym = find_symbol(cur->string, cur->tag); - if (!subsym) - { - struct string_list *n, *t = NULL; - - error_with_pos("expand undefined %s %s", - symbol_type_name[cur->tag], cur->string); - - n = xmalloc(sizeof(*n)); - n->string = xstrdup(symbol_type_name[cur->tag]); - n->tag = SYM_NORMAL; - n->next = t; - t = n; - - n = xmalloc(sizeof(*n)); - n->string = xstrdup(cur->string); - n->tag = SYM_NORMAL; - n->next = t; - t = n; - - n = xmalloc(sizeof(*n)); - n->string = xstrdup("{ UNKNOWN }"); - n->tag = SYM_NORMAL; - n->next = t; - - subsym = add_symbol(cur->string, cur->tag, n, 0); - } - if (subsym->expansion_trail) - { - if (flag_dump_defs) - { - fprintf(debugfile, "%s %s ", symbol_type_name[cur->tag], - cur->string); +static unsigned long expand_and_crc_list(struct string_list *list, + unsigned long crc) +{ + struct string_list **e, **b; + struct string_list *tmp, **tmp2; + int elem = 1; + + if (!list) + return crc; + + tmp = list; + while ((tmp = tmp->next) != NULL) + elem++; + + b = alloca(elem * sizeof(*e)); + e = b + elem; + tmp2 = e - 1; + + *(tmp2--) = list; + while ((list = list->next) != NULL) + *(tmp2--) = list; + + while (b != e) { + struct string_list *cur; + struct symbol *subsym; + + cur = *(b++); + switch (cur->tag) { + case SYM_NORMAL: + if (flag_dump_defs) + fprintf(debugfile, "%s ", cur->string); + crc = partial_crc32(cur->string, crc); + crc = partial_crc32_one(' ', crc); + break; + + case SYM_TYPEDEF: + subsym = find_symbol(cur->string, cur->tag); + if (subsym->expansion_trail) { + if (flag_dump_defs) + fprintf(debugfile, "%s ", cur->string); + crc = partial_crc32(cur->string, crc); + crc = partial_crc32_one(' ', crc); + } else { + subsym->expansion_trail = expansion_trail; + expansion_trail = subsym; + crc = expand_and_crc_list(subsym->defn, crc); + } + break; + + case SYM_STRUCT: + case SYM_UNION: + case SYM_ENUM: + subsym = find_symbol(cur->string, cur->tag); + if (!subsym) { + struct string_list *n, *t = NULL; + + error_with_pos("expand undefined %s %s", + symbol_type_name[cur->tag], + cur->string); + + n = xmalloc(sizeof(*n)); + n->string = xstrdup(symbol_type_name[cur->tag]); + n->tag = SYM_NORMAL; + n->next = t; + t = n; + + n = xmalloc(sizeof(*n)); + n->string = xstrdup(cur->string); + n->tag = SYM_NORMAL; + n->next = t; + t = n; + + n = xmalloc(sizeof(*n)); + n->string = xstrdup("{ UNKNOWN }"); + n->tag = SYM_NORMAL; + n->next = t; + + subsym = + add_symbol(cur->string, cur->tag, n, 0); + } + if (subsym->expansion_trail) { + if (flag_dump_defs) { + fprintf(debugfile, "%s %s ", + symbol_type_name[cur->tag], + cur->string); + } + + crc = partial_crc32(symbol_type_name[cur->tag], + crc); + crc = partial_crc32_one(' ', crc); + crc = partial_crc32(cur->string, crc); + crc = partial_crc32_one(' ', crc); + } else { + subsym->expansion_trail = expansion_trail; + expansion_trail = subsym; + crc = expand_and_crc_list(subsym->defn, crc); + } + break; } - - crc = partial_crc32(symbol_type_name[cur->tag], crc); - crc = partial_crc32_one(' ', crc); - crc = partial_crc32(cur->string, crc); - crc = partial_crc32_one(' ', crc); - } - else - { - subsym->expansion_trail = expansion_trail; - expansion_trail = subsym; - crc = expand_and_crc_list(subsym->defn, crc); - } - break; } - } - return crc; + return crc; } -void -export_symbol(const char *name) +void export_symbol(const char *name) { - struct symbol *sym; + struct symbol *sym; - sym = find_symbol(name, SYM_NORMAL); - if (!sym) - error_with_pos("export undefined symbol %s", name); - else - { - unsigned long crc; + sym = find_symbol(name, SYM_NORMAL); + if (!sym) + error_with_pos("export undefined symbol %s", name); + else { + unsigned long crc; - if (flag_dump_defs) - fprintf(debugfile, "Export %s == <", name); + if (flag_dump_defs) + fprintf(debugfile, "Export %s == <", name); - expansion_trail = (struct symbol *)-1L; + expansion_trail = (struct symbol *)-1L; - crc = expand_and_crc_list(sym->defn, 0xffffffff) ^ 0xffffffff; + crc = expand_and_crc_list(sym->defn, 0xffffffff) ^ 0xffffffff; - sym = expansion_trail; - while (sym != (struct symbol *)-1L) - { - struct symbol *n = sym->expansion_trail; - sym->expansion_trail = 0; - sym = n; - } + sym = expansion_trail; + while (sym != (struct symbol *)-1L) { + struct symbol *n = sym->expansion_trail; + sym->expansion_trail = 0; + sym = n; + } - if (flag_dump_defs) - fputs(">\n", debugfile); + if (flag_dump_defs) + fputs(">\n", debugfile); - /* Used as a linker script. */ - printf("__crc_%s = 0x%08lx ;\n", name, crc); - } + /* Used as a linker script. */ + printf("%s__crc_%s = 0x%08lx ;\n", mod_prefix, name, crc); + } } /*----------------------------------------------------------------------*/ - -void -error(const char *fmt, ...) -{ - va_list args; - - if (flag_warnings) - { - va_start(args, fmt); - vfprintf(stderr, fmt, args); - va_end(args); - putc('\n', stderr); - - errors++; - } -} - -void -error_with_pos(const char *fmt, ...) +void error_with_pos(const char *fmt, ...) { - va_list args; + va_list args; - if (flag_warnings) - { - fprintf(stderr, "%s:%d: ", cur_filename ? : "<stdin>", cur_line); + if (flag_warnings) { + fprintf(stderr, "%s:%d: ", cur_filename ? : "<stdin>", + cur_line); - va_start(args, fmt); - vfprintf(stderr, fmt, args); - va_end(args); - putc('\n', stderr); + va_start(args, fmt); + vfprintf(stderr, fmt, args); + va_end(args); + putc('\n', stderr); - errors++; - } + errors++; + } } - -void genksyms_usage(void) +static void genksyms_usage(void) { - fputs("Usage:\n" - "genksyms [-dDwqhV] > /path/to/.tmp_obj.ver\n" - "\n" + fputs("Usage:\n" "genksyms [-dDwqhV] > /path/to/.tmp_obj.ver\n" "\n" #ifdef __GNU_LIBRARY__ " -d, --debug Increment the debug level (repeatable)\n" " -D, --dump Dump expanded symbol defs (for debugging only)\n" @@ -511,81 +451,84 @@ void genksyms_usage(void) " -q, --quiet Disable warnings (default)\n" " -h, --help Print this message\n" " -V, --version Print the release version\n" -#else /* __GNU_LIBRARY__ */ - " -d Increment the debug level (repeatable)\n" - " -D Dump expanded symbol defs (for debugging only)\n" - " -w Enable warnings\n" - " -q Disable warnings (default)\n" - " -h Print this message\n" - " -V Print the release version\n" -#endif /* __GNU_LIBRARY__ */ +#else /* __GNU_LIBRARY__ */ + " -d Increment the debug level (repeatable)\n" + " -D Dump expanded symbol defs (for debugging only)\n" + " -w Enable warnings\n" + " -q Disable warnings (default)\n" + " -h Print this message\n" + " -V Print the release version\n" +#endif /* __GNU_LIBRARY__ */ , stderr); } -int -main(int argc, char **argv) +int main(int argc, char **argv) { - int o; + int o; #ifdef __GNU_LIBRARY__ - struct option long_opts[] = { - {"debug", 0, 0, 'd'}, - {"warnings", 0, 0, 'w'}, - {"quiet", 0, 0, 'q'}, - {"dump", 0, 0, 'D'}, - {"version", 0, 0, 'V'}, - {"help", 0, 0, 'h'}, - {0, 0, 0, 0} - }; - - while ((o = getopt_long(argc, argv, "dwqVDk:p:", - &long_opts[0], NULL)) != EOF) -#else /* __GNU_LIBRARY__ */ - while ((o = getopt(argc, argv, "dwqVDk:p:")) != EOF) -#endif /* __GNU_LIBRARY__ */ - switch (o) - { - case 'd': - flag_debug++; - break; - case 'w': - flag_warnings = 1; - break; - case 'q': - flag_warnings = 0; - break; - case 'V': - fputs("genksyms version 2.5.60\n", stderr); - break; - case 'D': - flag_dump_defs = 1; - break; - case 'h': - genksyms_usage(); - return 0; - default: - genksyms_usage(); - return 1; - } - - { - extern int yydebug; - extern int yy_flex_debug; - - yydebug = (flag_debug > 1); - yy_flex_debug = (flag_debug > 2); - - debugfile = stderr; - /* setlinebuf(debugfile); */ - } - - yyparse(); - - if (flag_debug) - { - fprintf(debugfile, "Hash table occupancy %d/%d = %g\n", - nsyms, HASH_BUCKETS, (double)nsyms / (double)HASH_BUCKETS); - } - - return errors != 0; + struct option long_opts[] = { + {"arch", 1, 0, 'a'}, + {"debug", 0, 0, 'd'}, + {"warnings", 0, 0, 'w'}, + {"quiet", 0, 0, 'q'}, + {"dump", 0, 0, 'D'}, + {"version", 0, 0, 'V'}, + {"help", 0, 0, 'h'}, + {0, 0, 0, 0} + }; + + while ((o = getopt_long(argc, argv, "a:dwqVDk:p:", + &long_opts[0], NULL)) != EOF) +#else /* __GNU_LIBRARY__ */ + while ((o = getopt(argc, argv, "a:dwqVDk:p:")) != EOF) +#endif /* __GNU_LIBRARY__ */ + switch (o) { + case 'a': + arch = optarg; + break; + case 'd': + flag_debug++; + break; + case 'w': + flag_warnings = 1; + break; + case 'q': + flag_warnings = 0; + break; + case 'V': + fputs("genksyms version 2.5.60\n", stderr); + break; + case 'D': + flag_dump_defs = 1; + break; + case 'h': + genksyms_usage(); + return 0; + default: + genksyms_usage(); + return 1; + } + if ((strcmp(arch, "v850") == 0) || (strcmp(arch, "h8300") == 0)) + mod_prefix = "_"; + { + extern int yydebug; + extern int yy_flex_debug; + + yydebug = (flag_debug > 1); + yy_flex_debug = (flag_debug > 2); + + debugfile = stderr; + /* setlinebuf(debugfile); */ + } + + yyparse(); + + if (flag_debug) { + fprintf(debugfile, "Hash table occupancy %d/%d = %g\n", + nsyms, HASH_BUCKETS, + (double)nsyms / (double)HASH_BUCKETS); + } + + return errors != 0; } diff --git a/scripts/genksyms/genksyms.h b/scripts/genksyms/genksyms.h index f09af47ab281..ab6f34f38735 100644 --- a/scripts/genksyms/genksyms.h +++ b/scripts/genksyms/genksyms.h @@ -20,74 +20,51 @@ along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - #ifndef MODUTILS_GENKSYMS_H #define MODUTILS_GENKSYMS_H 1 #include <stdio.h> - -enum symbol_type -{ - SYM_NORMAL, SYM_TYPEDEF, SYM_ENUM, SYM_STRUCT, SYM_UNION +enum symbol_type { + SYM_NORMAL, SYM_TYPEDEF, SYM_ENUM, SYM_STRUCT, SYM_UNION }; -struct string_list -{ - struct string_list *next; - enum symbol_type tag; - char *string; +struct string_list { + struct string_list *next; + enum symbol_type tag; + char *string; }; -struct symbol -{ - struct symbol *hash_next; - const char *name; - enum symbol_type type; - struct string_list *defn; - struct symbol *expansion_trail; - int is_extern; +struct symbol { + struct symbol *hash_next; + const char *name; + enum symbol_type type; + struct string_list *defn; + struct symbol *expansion_trail; + int is_extern; }; typedef struct string_list **yystype; #define YYSTYPE yystype -extern FILE *outfile, *debugfile; - extern int cur_line; -extern char *cur_filename, *output_directory; - -extern int flag_debug, flag_dump_defs, flag_warnings; -extern int checksum_version, kernel_version; - -extern int want_brace_phrase, want_exp_phrase, discard_phrase_contents; -extern struct string_list *current_list, *next_list; - +extern char *cur_filename; struct symbol *find_symbol(const char *name, enum symbol_type ns); struct symbol *add_symbol(const char *name, enum symbol_type type, - struct string_list *defn, int is_extern); + struct string_list *defn, int is_extern); void export_symbol(const char *); -struct string_list *reset_list(void); -void free_list(struct string_list *s, struct string_list *e); void free_node(struct string_list *list); +void free_list(struct string_list *s, struct string_list *e); struct string_list *copy_node(struct string_list *); -struct string_list *copy_list(struct string_list *s, struct string_list *e); -int equal_list(struct string_list *a, struct string_list *b); -void print_list(FILE *, struct string_list *list); int yylex(void); int yyparse(void); void error_with_pos(const char *, ...); -#define version(a,b,c) ((a << 16) | (b << 8) | (c)) - /*----------------------------------------------------------------------*/ - -#define MODUTILS_VERSION "<in-kernel>" - #define xmalloc(size) ({ void *__ptr = malloc(size); \ if(!__ptr && size != 0) { \ fprintf(stderr, "out of memory\n"); \ @@ -101,4 +78,4 @@ void error_with_pos(const char *, ...); } \ __str; }) -#endif /* genksyms.h */ +#endif /* genksyms.h */ diff --git a/scripts/genksyms/keywords.c_shipped b/scripts/genksyms/keywords.c_shipped index ee4647805c58..d8153f572e40 100644 --- a/scripts/genksyms/keywords.c_shipped +++ b/scripts/genksyms/keywords.c_shipped @@ -52,9 +52,9 @@ is_reserved_hash (register const char *str, register unsigned int len) 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, - 71, 71, 71, 71, 71, 71, 71, 71, 71, 15, - 71, 71, 71, 71, 71, 71, 15, 71, 71, 71, - 10, 71, 71, 71, 71, 71, 71, 71, 71, 71, + 71, 71, 71, 71, 71, 71, 71, 71, 71, 0, + 71, 71, 71, 71, 71, 71, 35, 71, 71, 71, + 5, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 0, 71, 0, 71, 5, 5, 0, 10, 20, 71, 25, 71, 71, 20, 0, 20, 30, 25, 71, 10, 5, 0, 20, 15, 71, @@ -84,9 +84,9 @@ is_reserved_word (register const char *str, register unsigned int len) { enum { - TOTAL_KEYWORDS = 41, + TOTAL_KEYWORDS = 42, MIN_WORD_LENGTH = 3, - MAX_WORD_LENGTH = 17, + MAX_WORD_LENGTH = 24, MIN_HASH_VALUE = 3, MAX_HASH_VALUE = 70 }; @@ -94,104 +94,105 @@ is_reserved_word (register const char *str, register unsigned int len) static const struct resword wordlist[] = { {""}, {""}, {""}, -#line 24 "scripts/genksyms/keywords.gperf" +#line 25 "scripts/genksyms/keywords.gperf" {"asm", ASM_KEYW}, {""}, -#line 7 "scripts/genksyms/keywords.gperf" +#line 8 "scripts/genksyms/keywords.gperf" {"__asm", ASM_KEYW}, {""}, -#line 8 "scripts/genksyms/keywords.gperf" +#line 9 "scripts/genksyms/keywords.gperf" {"__asm__", ASM_KEYW}, {""}, -#line 21 "scripts/genksyms/keywords.gperf" +#line 22 "scripts/genksyms/keywords.gperf" {"_restrict", RESTRICT_KEYW}, -#line 50 "scripts/genksyms/keywords.gperf" +#line 51 "scripts/genksyms/keywords.gperf" {"__typeof__", TYPEOF_KEYW}, -#line 9 "scripts/genksyms/keywords.gperf" +#line 10 "scripts/genksyms/keywords.gperf" {"__attribute", ATTRIBUTE_KEYW}, -#line 11 "scripts/genksyms/keywords.gperf" +#line 12 "scripts/genksyms/keywords.gperf" {"__const", CONST_KEYW}, -#line 10 "scripts/genksyms/keywords.gperf" +#line 11 "scripts/genksyms/keywords.gperf" {"__attribute__", ATTRIBUTE_KEYW}, -#line 12 "scripts/genksyms/keywords.gperf" +#line 13 "scripts/genksyms/keywords.gperf" {"__const__", CONST_KEYW}, -#line 16 "scripts/genksyms/keywords.gperf" +#line 17 "scripts/genksyms/keywords.gperf" {"__signed__", SIGNED_KEYW}, -#line 42 "scripts/genksyms/keywords.gperf" +#line 43 "scripts/genksyms/keywords.gperf" {"static", STATIC_KEYW}, {""}, -#line 15 "scripts/genksyms/keywords.gperf" +#line 16 "scripts/genksyms/keywords.gperf" {"__signed", SIGNED_KEYW}, -#line 30 "scripts/genksyms/keywords.gperf" +#line 31 "scripts/genksyms/keywords.gperf" {"char", CHAR_KEYW}, {""}, -#line 43 "scripts/genksyms/keywords.gperf" +#line 44 "scripts/genksyms/keywords.gperf" {"struct", STRUCT_KEYW}, -#line 22 "scripts/genksyms/keywords.gperf" - {"__restrict__", RESTRICT_KEYW}, #line 23 "scripts/genksyms/keywords.gperf" + {"__restrict__", RESTRICT_KEYW}, +#line 24 "scripts/genksyms/keywords.gperf" {"restrict", RESTRICT_KEYW}, -#line 33 "scripts/genksyms/keywords.gperf" +#line 34 "scripts/genksyms/keywords.gperf" {"enum", ENUM_KEYW}, -#line 17 "scripts/genksyms/keywords.gperf" +#line 18 "scripts/genksyms/keywords.gperf" {"__volatile", VOLATILE_KEYW}, -#line 34 "scripts/genksyms/keywords.gperf" +#line 35 "scripts/genksyms/keywords.gperf" {"extern", EXTERN_KEYW}, -#line 18 "scripts/genksyms/keywords.gperf" +#line 19 "scripts/genksyms/keywords.gperf" {"__volatile__", VOLATILE_KEYW}, -#line 37 "scripts/genksyms/keywords.gperf" +#line 38 "scripts/genksyms/keywords.gperf" {"int", INT_KEYW}, - {""}, -#line 31 "scripts/genksyms/keywords.gperf" - {"const", CONST_KEYW}, +#line 7 "scripts/genksyms/keywords.gperf" + {"EXPORT_SYMBOL_GPL_FUTURE", EXPORT_SYMBOL_KEYW}, #line 32 "scripts/genksyms/keywords.gperf" + {"const", CONST_KEYW}, +#line 33 "scripts/genksyms/keywords.gperf" {"double", DOUBLE_KEYW}, {""}, -#line 13 "scripts/genksyms/keywords.gperf" +#line 14 "scripts/genksyms/keywords.gperf" {"__inline", INLINE_KEYW}, -#line 29 "scripts/genksyms/keywords.gperf" +#line 30 "scripts/genksyms/keywords.gperf" {"auto", AUTO_KEYW}, -#line 14 "scripts/genksyms/keywords.gperf" +#line 15 "scripts/genksyms/keywords.gperf" {"__inline__", INLINE_KEYW}, -#line 41 "scripts/genksyms/keywords.gperf" +#line 42 "scripts/genksyms/keywords.gperf" {"signed", SIGNED_KEYW}, {""}, -#line 46 "scripts/genksyms/keywords.gperf" +#line 47 "scripts/genksyms/keywords.gperf" {"unsigned", UNSIGNED_KEYW}, {""}, -#line 40 "scripts/genksyms/keywords.gperf" +#line 41 "scripts/genksyms/keywords.gperf" {"short", SHORT_KEYW}, -#line 49 "scripts/genksyms/keywords.gperf" +#line 50 "scripts/genksyms/keywords.gperf" {"typeof", TYPEOF_KEYW}, -#line 44 "scripts/genksyms/keywords.gperf" +#line 45 "scripts/genksyms/keywords.gperf" {"typedef", TYPEDEF_KEYW}, -#line 48 "scripts/genksyms/keywords.gperf" +#line 49 "scripts/genksyms/keywords.gperf" {"volatile", VOLATILE_KEYW}, {""}, -#line 35 "scripts/genksyms/keywords.gperf" +#line 36 "scripts/genksyms/keywords.gperf" {"float", FLOAT_KEYW}, {""}, {""}, -#line 39 "scripts/genksyms/keywords.gperf" +#line 40 "scripts/genksyms/keywords.gperf" {"register", REGISTER_KEYW}, -#line 47 "scripts/genksyms/keywords.gperf" +#line 48 "scripts/genksyms/keywords.gperf" {"void", VOID_KEYW}, {""}, -#line 36 "scripts/genksyms/keywords.gperf" +#line 37 "scripts/genksyms/keywords.gperf" {"inline", INLINE_KEYW}, {""}, #line 5 "scripts/genksyms/keywords.gperf" {"EXPORT_SYMBOL", EXPORT_SYMBOL_KEYW}, {""}, -#line 20 "scripts/genksyms/keywords.gperf" +#line 21 "scripts/genksyms/keywords.gperf" {"_Bool", BOOL_KEYW}, {""}, #line 6 "scripts/genksyms/keywords.gperf" {"EXPORT_SYMBOL_GPL", EXPORT_SYMBOL_KEYW}, {""}, {""}, {""}, {""}, {""}, {""}, -#line 38 "scripts/genksyms/keywords.gperf" +#line 39 "scripts/genksyms/keywords.gperf" {"long", LONG_KEYW}, {""}, {""}, {""}, {""}, {""}, -#line 45 "scripts/genksyms/keywords.gperf" +#line 46 "scripts/genksyms/keywords.gperf" {"union", UNION_KEYW} }; diff --git a/scripts/genksyms/keywords.gperf b/scripts/genksyms/keywords.gperf index b6bec765996e..c75e0c8d8f0c 100644 --- a/scripts/genksyms/keywords.gperf +++ b/scripts/genksyms/keywords.gperf @@ -4,6 +4,7 @@ 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 __asm, ASM_KEYW __asm__, ASM_KEYW __attribute, ATTRIBUTE_KEYW diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c index d591578bd3b2..22d281c6ec24 100644 --- a/scripts/kallsyms.c +++ b/scripts/kallsyms.c @@ -124,6 +124,11 @@ static int read_symbol(FILE *in, struct sym_entry *s) * compressed together */ s->len = strlen(str) + 1; s->sym = malloc(s->len + 1); + if (!s->sym) { + fprintf(stderr, "kallsyms failure: " + "unable to allocate required amount of memory\n"); + exit(EXIT_FAILURE); + } strcpy((char *)s->sym + 1, str); s->sym[0] = stype; @@ -272,7 +277,12 @@ static void write_src(void) /* table of offset markers, that give the offset in the compressed stream * every 256 symbols */ - markers = (unsigned int *) malloc(sizeof(unsigned int) * ((table_cnt + 255) / 256)); + markers = malloc(sizeof(unsigned int) * ((table_cnt + 255) / 256)); + if (!markers) { + fprintf(stderr, "kallsyms failure: " + "unable to allocate required memory\n"); + exit(EXIT_FAILURE); + } output_label("kallsyms_names"); off = 0; diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile index 5760e057ecba..e6499db4c8cc 100644 --- a/scripts/kconfig/Makefile +++ b/scripts/kconfig/Makefile @@ -2,7 +2,7 @@ # Kernel configuration targets # These targets are used from top-level makefile -.PHONY: oldconfig xconfig gconfig menuconfig config silentoldconfig update-po-config +PHONY += oldconfig xconfig gconfig menuconfig config silentoldconfig update-po-config xconfig: $(obj)/qconf $< arch/$(ARCH)/Kconfig @@ -42,7 +42,7 @@ update-po-config: $(obj)/kxgettext $(Q)rm -f arch/um/Kconfig_arch $(Q)rm -f scripts/kconfig/linux_*.pot scripts/kconfig/config.pot -.PHONY: randconfig allyesconfig allnoconfig allmodconfig defconfig +PHONY += randconfig allyesconfig allnoconfig allmodconfig defconfig randconfig: $(obj)/conf $< -r arch/$(ARCH)/Kconfig @@ -78,7 +78,7 @@ help: @echo ' defconfig - New config with default answer to all options' @echo ' allmodconfig - New config selecting modules when possible' @echo ' allyesconfig - New config where all options are accepted with yes' - @echo ' allnoconfig - New minimal config' + @echo ' allnoconfig - New config where all options are answered with no' # =========================================================================== # Shared Makefile for the various kconfig executables: diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index b0cbbe2e41bb..1b8882ddbc74 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -374,6 +374,7 @@ int conf_write(const char *name) out_h = fopen(".tmpconfig.h", "w"); if (!out_h) return 1; + file_write_dep(NULL); } sym = sym_lookup("KERNELVERSION", 0); sym_calc_value(sym); @@ -512,7 +513,6 @@ int conf_write(const char *name) if (out_h) { fclose(out_h); rename(".tmpconfig.h", "include/linux/autoconf.h"); - file_write_dep(NULL); } if (!name || basename != conf_def_filename) { if (!name) diff --git a/scripts/kconfig/lxdialog/Makefile b/scripts/kconfig/lxdialog/Makefile index bbf4887cff74..a8b026326247 100644 --- a/scripts/kconfig/lxdialog/Makefile +++ b/scripts/kconfig/lxdialog/Makefile @@ -7,10 +7,10 @@ check-lxdialog := $(srctree)/$(src)/check-lxdialog.sh # we really need to do so. (Do not call gcc as part of make mrproper) HOST_EXTRACFLAGS = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) HOST_LOADLIBES = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC)) - -HOST_EXTRACFLAGS += -DLOCALE -.PHONY: dochecklxdialog +HOST_EXTRACFLAGS += -DLOCALE + +PHONY += dochecklxdialog $(obj)/dochecklxdialog: $(Q)$(CONFIG_SHELL) $(check-lxdialog) -check $(HOSTCC) $(HOST_LOADLIBES) diff --git a/scripts/mkmakefile b/scripts/mkmakefile index c4d621b30d0d..a22cbedd3b3e 100644 --- a/scripts/mkmakefile +++ b/scripts/mkmakefile @@ -21,11 +21,13 @@ KERNELOUTPUT := $2 MAKEFLAGS += --no-print-directory +.PHONY: all \$(MAKECMDGOALS) + all: \$(MAKE) -C \$(KERNELSRC) O=\$(KERNELOUTPUT) -%:: - \$(MAKE) -C \$(KERNELSRC) O=\$(KERNELOUTPUT) \$@ +Makefile:; +\$(filter-out all Makefile,\$(MAKECMDGOALS)) %/: + \$(MAKE) -C \$(KERNELSRC) O=\$(KERNELOUTPUT) \$@ EOF - diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index c164b230ad6f..84e21201f3c0 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -34,7 +34,7 @@ typedef uint16_t __u16; typedef unsigned char __u8; /* Big exception to the "don't include kernel headers into userspace, which - * even potentially has different endianness and word sizes, since + * even potentially has different endianness and word sizes, since * we handle those differences explicitly below */ #include "../../include/linux/mod_devicetable.h" #include "../../include/linux/input.h" @@ -153,8 +153,8 @@ static void do_usb_table(void *symval, unsigned long size, const unsigned long id_size = sizeof(struct usb_device_id); if (size % id_size || size < id_size) { - fprintf(stderr, "*** Warning: %s ids %lu bad size " - "(each on %lu)\n", mod->name, size, id_size); + warn("%s ids %lu bad size " + "(each on %lu)\n", mod->name, size, id_size); } /* Leave last one: it's the terminator. */ size -= id_size; @@ -217,9 +217,8 @@ static int do_pci_entry(const char *filename, if ((baseclass_mask != 0 && baseclass_mask != 0xFF) || (subclass_mask != 0 && subclass_mask != 0xFF) || (interface_mask != 0 && interface_mask != 0xFF)) { - fprintf(stderr, - "*** Warning: Can't handle masks in %s:%04X\n", - filename, id->class_mask); + warn("Can't handle masks in %s:%04X\n", + filename, id->class_mask); return 0; } @@ -229,7 +228,7 @@ static int do_pci_entry(const char *filename, return 1; } -/* looks like: "ccw:tNmNdtNdmN" */ +/* looks like: "ccw:tNmNdtNdmN" */ static int do_ccw_entry(const char *filename, struct ccw_device_id *id, char *alias) { @@ -445,8 +444,8 @@ static void do_table(void *symval, unsigned long size, int (*do_entry)(const char *, void *entry, char *alias) = function; if (size % id_size || size < id_size) { - fprintf(stderr, "*** Warning: %s ids %lu bad size " - "(each on %lu)\n", mod->name, size, id_size); + warn("%s ids %lu bad size " + "(each on %lu)\n", mod->name, size, id_size); } /* Leave last one: it's the terminator. */ size -= id_size; diff --git a/scripts/mod/mk_elfconfig.c b/scripts/mod/mk_elfconfig.c index de2aabf89fb3..3c92c83733f4 100644 --- a/scripts/mod/mk_elfconfig.c +++ b/scripts/mod/mk_elfconfig.c @@ -6,7 +6,7 @@ int main(int argc, char **argv) { - unsigned char ei[EI_NIDENT]; + unsigned char ei[EI_NIDENT]; union { short s; char c[2]; } endian_test; if (argc != 2) { @@ -57,7 +57,7 @@ main(int argc, char **argv) if ((strcmp(argv[1], "v850") == 0) || (strcmp(argv[1], "h8300") == 0)) printf("#define MODULE_SYMBOL_PREFIX \"_\"\n"); - else + else printf("#define MODULE_SYMBOL_PREFIX \"\"\n"); return 0; diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index b8b2a560b26b..0b92ddff26fd 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -2,7 +2,7 @@ * * Copyright 2003 Kai Germaschewski * Copyright 2002-2004 Rusty Russell, IBM Corporation - * + * Copyright 2006 Sam Ravnborg * Based in part on module-init-tools/depmod.c,file2alias * * This software may be used and distributed according to the terms @@ -20,9 +20,10 @@ int modversions = 0; int have_vmlinux = 0; /* Is CONFIG_MODULE_SRCVERSION_ALL set? */ static int all_versions = 0; +/* If we are modposting external module set to 1 */ +static int external_module = 0; -void -fatal(const char *fmt, ...) +void fatal(const char *fmt, ...) { va_list arglist; @@ -35,8 +36,7 @@ fatal(const char *fmt, ...) exit(1); } -void -warn(const char *fmt, ...) +void warn(const char *fmt, ...) { va_list arglist; @@ -47,6 +47,18 @@ warn(const char *fmt, ...) va_end(arglist); } +static int is_vmlinux(const char *modname) +{ + const char *myname; + + if ((myname = strrchr(modname, '/'))) + myname++; + else + myname = modname; + + return strcmp(myname, "vmlinux") == 0; +} + void *do_nofail(void *ptr, const char *expr) { if (!ptr) { @@ -59,8 +71,7 @@ void *do_nofail(void *ptr, const char *expr) static struct module *modules; -struct module * -find_module(char *modname) +static struct module *find_module(char *modname) { struct module *mod; @@ -70,12 +81,11 @@ find_module(char *modname) return mod; } -struct module * -new_module(char *modname) +static struct module *new_module(char *modname) { struct module *mod; char *p, *s; - + mod = NOFAIL(malloc(sizeof(*mod))); memset(mod, 0, sizeof(*mod)); p = NOFAIL(strdup(modname)); @@ -104,6 +114,10 @@ struct symbol { unsigned int crc; int crc_valid; unsigned int weak:1; + unsigned int vmlinux:1; /* 1 if symbol is defined in vmlinux */ + unsigned int kernel:1; /* 1 if symbol is from kernel + * (only for external modules) **/ + unsigned int preloaded:1; /* 1 if symbol from Module.symvers */ char name[0]; }; @@ -122,11 +136,12 @@ static inline unsigned int tdb_hash(const char *name) return (1103515243 * value + 12345); } -/* Allocate a new symbols for use in the hash of exported symbols or - * the list of unresolved symbols per module */ - -struct symbol * -alloc_symbol(const char *name, unsigned int weak, struct symbol *next) +/** + * Allocate a new symbols for use in the hash of exported symbols or + * the list of unresolved symbols per module + **/ +static struct symbol *alloc_symbol(const char *name, unsigned int weak, + struct symbol *next) { struct symbol *s = NOFAIL(malloc(sizeof(*s) + strlen(name) + 1)); @@ -138,9 +153,7 @@ alloc_symbol(const char *name, unsigned int weak, struct symbol *next) } /* For the hash of exported symbols */ - -void -new_symbol(const char *name, struct module *module, unsigned int *crc) +static struct symbol *new_symbol(const char *name, struct module *module) { unsigned int hash; struct symbol *new; @@ -148,14 +161,10 @@ new_symbol(const char *name, struct module *module, unsigned int *crc) hash = tdb_hash(name) % SYMBOL_HASH_SIZE; new = symbolhash[hash] = alloc_symbol(name, 0, symbolhash[hash]); new->module = module; - if (crc) { - new->crc = *crc; - new->crc_valid = 1; - } + return new; } -struct symbol * -find_symbol(const char *name) +static struct symbol *find_symbol(const char *name) { struct symbol *s; @@ -170,25 +179,42 @@ find_symbol(const char *name) return NULL; } -/* Add an exported symbol - it may have already been added without a - * CRC, in this case just update the CRC */ -void -add_exported_symbol(const char *name, struct module *module, unsigned int *crc) +/** + * Add an exported symbol - it may have already been added without a + * CRC, in this case just update the CRC + **/ +static struct symbol *sym_add_exported(const char *name, struct module *mod) { struct symbol *s = find_symbol(name); if (!s) { - new_symbol(name, module, crc); - return; - } - if (crc) { - s->crc = *crc; - s->crc_valid = 1; + s = new_symbol(name, mod); + } else { + if (!s->preloaded) { + warn("%s: '%s' exported twice. Previous export " + "was in %s%s\n", mod->name, name, + s->module->name, + is_vmlinux(s->module->name) ?"":".ko"); + } } + s->preloaded = 0; + s->vmlinux = is_vmlinux(mod->name); + s->kernel = 0; + return s; +} + +static void sym_update_crc(const char *name, struct module *mod, + unsigned int crc) +{ + struct symbol *s = find_symbol(name); + + if (!s) + s = new_symbol(name, mod); + s->crc = crc; + s->crc_valid = 1; } -void * -grab_file(const char *filename, unsigned long *size) +void *grab_file(const char *filename, unsigned long *size) { struct stat st; void *map; @@ -207,13 +233,12 @@ grab_file(const char *filename, unsigned long *size) return map; } -/* - Return a copy of the next line in a mmap'ed file. - spaces in the beginning of the line is trimmed away. - Return a pointer to a static buffer. -*/ -char* -get_next_line(unsigned long *pos, void *file, unsigned long size) +/** + * Return a copy of the next line in a mmap'ed file. + * spaces in the beginning of the line is trimmed away. + * Return a pointer to a static buffer. + **/ +char* get_next_line(unsigned long *pos, void *file, unsigned long size) { static char line[4096]; int skip = 1; @@ -243,14 +268,12 @@ get_next_line(unsigned long *pos, void *file, unsigned long size) return NULL; } -void -release_file(void *file, unsigned long size) +void release_file(void *file, unsigned long size) { munmap(file, size); } -void -parse_elf(struct elf_info *info, const char *filename) +static void parse_elf(struct elf_info *info, const char *filename) { unsigned int i; Elf_Ehdr *hdr = info->hdr; @@ -297,14 +320,13 @@ parse_elf(struct elf_info *info, const char *filename) continue; info->symtab_start = (void *)hdr + sechdrs[i].sh_offset; - info->symtab_stop = (void *)hdr + sechdrs[i].sh_offset + info->symtab_stop = (void *)hdr + sechdrs[i].sh_offset + sechdrs[i].sh_size; - info->strtab = (void *)hdr + + info->strtab = (void *)hdr + sechdrs[sechdrs[i].sh_link].sh_offset; } if (!info->symtab_start) { - fprintf(stderr, "modpost: %s no symtab?\n", filename); - abort(); + fatal("%s has no symtab?\n", filename); } /* Fix endianness in symbols */ for (sym = info->symtab_start; sym < info->symtab_stop; sym++) { @@ -316,36 +338,31 @@ parse_elf(struct elf_info *info, const char *filename) return; truncated: - fprintf(stderr, "modpost: %s is truncated.\n", filename); - abort(); + fatal("%s is truncated.\n", filename); } -void -parse_elf_finish(struct elf_info *info) +static void parse_elf_finish(struct elf_info *info) { release_file(info->hdr, info->size); } -#define CRC_PFX "__crc_" -#define KSYMTAB_PFX "__ksymtab_" +#define CRC_PFX MODULE_SYMBOL_PREFIX "__crc_" +#define KSYMTAB_PFX MODULE_SYMBOL_PREFIX "__ksymtab_" -void -handle_modversions(struct module *mod, struct elf_info *info, - Elf_Sym *sym, const char *symname) +static void handle_modversions(struct module *mod, struct elf_info *info, + Elf_Sym *sym, const char *symname) { unsigned int crc; switch (sym->st_shndx) { case SHN_COMMON: - fprintf(stderr, "*** Warning: \"%s\" [%s] is COMMON symbol\n", - symname, mod->name); + warn("\"%s\" [%s] is COMMON symbol\n", symname, mod->name); break; case SHN_ABS: /* CRC'd symbol */ if (memcmp(symname, CRC_PFX, strlen(CRC_PFX)) == 0) { crc = (unsigned int) sym->st_value; - add_exported_symbol(symname + strlen(CRC_PFX), - mod, &crc); + sym_update_crc(symname + strlen(CRC_PFX), mod, crc); } break; case SHN_UNDEF: @@ -370,15 +387,15 @@ handle_modversions(struct module *mod, struct elf_info *info, /* Ignore register directives. */ if (ELF_ST_TYPE(sym->st_info) == STT_SPARC_REGISTER) break; - if (symname[0] == '.') { - char *munged = strdup(symname); - munged[0] = '_'; - munged[1] = toupper(munged[1]); - symname = munged; - } + if (symname[0] == '.') { + char *munged = strdup(symname); + munged[0] = '_'; + munged[1] = toupper(munged[1]); + symname = munged; + } } #endif - + if (memcmp(symname, MODULE_SYMBOL_PREFIX, strlen(MODULE_SYMBOL_PREFIX)) == 0) mod->unres = alloc_symbol(symname + @@ -389,8 +406,7 @@ handle_modversions(struct module *mod, struct elf_info *info, default: /* All exported symbols */ if (memcmp(symname, KSYMTAB_PFX, strlen(KSYMTAB_PFX)) == 0) { - add_exported_symbol(symname + strlen(KSYMTAB_PFX), - mod, NULL); + sym_add_exported(symname + strlen(KSYMTAB_PFX), mod); } if (strcmp(symname, MODULE_SYMBOL_PREFIX "init_module") == 0) mod->has_init = 1; @@ -400,20 +416,9 @@ handle_modversions(struct module *mod, struct elf_info *info, } } -int -is_vmlinux(const char *modname) -{ - const char *myname; - - if ((myname = strrchr(modname, '/'))) - myname++; - else - myname = modname; - - return strcmp(myname, "vmlinux") == 0; -} - -/* Parse tag=value strings from .modinfo section */ +/** + * Parse tag=value strings from .modinfo section + **/ static char *next_string(char *string, unsigned long *secsize) { /* Skip non-zero chars */ @@ -446,8 +451,418 @@ static char *get_modinfo(void *modinfo, unsigned long modinfo_len, return NULL; } -void -read_symbols(char *modname) +/** + * Test if string s ends in string sub + * return 0 if match + **/ +static int strrcmp(const char *s, const char *sub) +{ + int slen, sublen; + + if (!s || !sub) + return 1; + + slen = strlen(s); + sublen = strlen(sub); + + if ((slen == 0) || (sublen == 0)) + return 1; + + if (sublen > slen) + return 1; + + return memcmp(s + slen - sublen, sub, sublen); +} + +/** + * Whitelist to allow certain references to pass with no warning. + * Pattern 1: + * If a module parameter is declared __initdata and permissions=0 + * then this is legal despite the warning generated. + * We cannot see value of permissions here, so just ignore + * this pattern. + * The pattern is identified by: + * tosec = .init.data + * fromsec = .data* + * atsym =__param* + * + * Pattern 2: + * Many drivers utilise a *_driver container with references to + * add, remove, probe functions etc. + * These functions may often be marked __init and we do not want to + * warn here. + * the pattern is identified by: + * tosec = .init.text | .exit.text + * fromsec = .data + * atsym = *_driver, *_ops, *_probe, *probe_one + **/ +static int secref_whitelist(const char *tosec, const char *fromsec, + const char *atsym) +{ + int f1 = 1, f2 = 1; + const char **s; + const char *pat2sym[] = { + "_driver", + "_ops", + "_probe", + "_probe_one", + NULL + }; + + /* Check for pattern 1 */ + if (strcmp(tosec, ".init.data") != 0) + f1 = 0; + if (strncmp(fromsec, ".data", strlen(".data")) != 0) + f1 = 0; + if (strncmp(atsym, "__param", strlen("__param")) != 0) + f1 = 0; + + if (f1) + return f1; + + /* Check for pattern 2 */ + if ((strcmp(tosec, ".init.text") != 0) && + (strcmp(tosec, ".exit.text") != 0)) + f2 = 0; + if (strcmp(fromsec, ".data") != 0) + f2 = 0; + + for (s = pat2sym; *s; s++) + if (strrcmp(atsym, *s) == 0) + f1 = 1; + + return f1 && f2; +} + +/** + * Find symbol based on relocation record info. + * In some cases the symbol supplied is a valid symbol so + * return refsym. If st_name != 0 we assume this is a valid symbol. + * In other cases the symbol needs to be looked up in the symbol table + * based on section and address. + * **/ +static Elf_Sym *find_elf_symbol(struct elf_info *elf, Elf_Addr addr, + Elf_Sym *relsym) +{ + Elf_Sym *sym; + + if (relsym->st_name != 0) + return relsym; + for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) { + if (sym->st_shndx != relsym->st_shndx) + continue; + if (sym->st_value == addr) + return sym; + } + return NULL; +} + +/* + * Find symbols before or equal addr and after addr - in the section sec. + * If we find two symbols with equal offset prefer one with a valid name. + * The ELF format may have a better way to detect what type of symbol + * it is, but this works for now. + **/ +static void find_symbols_between(struct elf_info *elf, Elf_Addr addr, + const char *sec, + Elf_Sym **before, Elf_Sym **after) +{ + Elf_Sym *sym; + Elf_Ehdr *hdr = elf->hdr; + Elf_Addr beforediff = ~0; + Elf_Addr afterdiff = ~0; + const char *secstrings = (void *)hdr + + elf->sechdrs[hdr->e_shstrndx].sh_offset; + + *before = NULL; + *after = NULL; + + for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) { + const char *symsec; + + if (sym->st_shndx >= SHN_LORESERVE) + continue; + symsec = secstrings + elf->sechdrs[sym->st_shndx].sh_name; + if (strcmp(symsec, sec) != 0) + continue; + if (sym->st_value <= addr) { + if ((addr - sym->st_value) < beforediff) { + beforediff = addr - sym->st_value; + *before = sym; + } + else if ((addr - sym->st_value) == beforediff) { + /* equal offset, valid name? */ + const char *name = elf->strtab + sym->st_name; + if (name && strlen(name)) + *before = sym; + } + } + else + { + if ((sym->st_value - addr) < afterdiff) { + afterdiff = sym->st_value - addr; + *after = sym; + } + else if ((sym->st_value - addr) == afterdiff) { + /* equal offset, valid name? */ + const char *name = elf->strtab + sym->st_name; + if (name && strlen(name)) + *after = sym; + } + } + } +} + +/** + * Print a warning about a section mismatch. + * Try to find symbols near it so user can find it. + * Check whitelist before warning - it may be a false positive. + **/ +static void warn_sec_mismatch(const char *modname, const char *fromsec, + struct elf_info *elf, Elf_Sym *sym, Elf_Rela r) +{ + const char *refsymname = ""; + Elf_Sym *before, *after; + Elf_Sym *refsym; + Elf_Ehdr *hdr = elf->hdr; + Elf_Shdr *sechdrs = elf->sechdrs; + const char *secstrings = (void *)hdr + + sechdrs[hdr->e_shstrndx].sh_offset; + const char *secname = secstrings + sechdrs[sym->st_shndx].sh_name; + + find_symbols_between(elf, r.r_offset, fromsec, &before, &after); + + refsym = find_elf_symbol(elf, r.r_addend, sym); + if (refsym && strlen(elf->strtab + refsym->st_name)) + refsymname = elf->strtab + refsym->st_name; + + /* check whitelist - we may ignore it */ + if (before && + secref_whitelist(secname, fromsec, elf->strtab + before->st_name)) + return; + + if (before && after) { + warn("%s - Section mismatch: reference to %s:%s from %s " + "between '%s' (at offset 0x%llx) and '%s'\n", + modname, secname, refsymname, fromsec, + elf->strtab + before->st_name, + (long long)r.r_offset, + elf->strtab + after->st_name); + } else if (before) { + warn("%s - Section mismatch: reference to %s:%s from %s " + "after '%s' (at offset 0x%llx)\n", + modname, secname, refsymname, fromsec, + elf->strtab + before->st_name, + (long long)r.r_offset); + } else if (after) { + warn("%s - Section mismatch: reference to %s:%s from %s " + "before '%s' (at offset -0x%llx)\n", + modname, secname, refsymname, fromsec, + elf->strtab + before->st_name, + (long long)r.r_offset); + } else { + warn("%s - Section mismatch: reference to %s:%s from %s " + "(offset 0x%llx)\n", + modname, secname, fromsec, refsymname, + (long long)r.r_offset); + } +} + +/** + * A module includes a number of sections that are discarded + * either when loaded or when used as built-in. + * For loaded modules all functions marked __init and all data + * marked __initdata will be discarded when the module has been intialized. + * Likewise for modules used built-in the sections marked __exit + * are discarded because __exit marked function are supposed to be called + * only when a moduel is unloaded which never happes for built-in modules. + * The check_sec_ref() function traverses all relocation records + * to find all references to a section that reference a section that will + * be discarded and warns about it. + **/ +static void check_sec_ref(struct module *mod, const char *modname, + struct elf_info *elf, + int section(const char*), + int section_ref_ok(const char *)) +{ + int i; + Elf_Sym *sym; + Elf_Ehdr *hdr = elf->hdr; + Elf_Shdr *sechdrs = elf->sechdrs; + const char *secstrings = (void *)hdr + + sechdrs[hdr->e_shstrndx].sh_offset; + + /* Walk through all sections */ + for (i = 0; i < hdr->e_shnum; i++) { + Elf_Rela *rela; + Elf_Rela *start = (void *)hdr + sechdrs[i].sh_offset; + Elf_Rela *stop = (void*)start + sechdrs[i].sh_size; + const char *name = secstrings + sechdrs[i].sh_name + + strlen(".rela"); + /* We want to process only relocation sections and not .init */ + if (section_ref_ok(name) || (sechdrs[i].sh_type != SHT_RELA)) + continue; + + for (rela = start; rela < stop; rela++) { + Elf_Rela r; + const char *secname; + r.r_offset = TO_NATIVE(rela->r_offset); + r.r_info = TO_NATIVE(rela->r_info); + r.r_addend = TO_NATIVE(rela->r_addend); + sym = elf->symtab_start + ELF_R_SYM(r.r_info); + /* Skip special sections */ + if (sym->st_shndx >= SHN_LORESERVE) + continue; + + secname = secstrings + sechdrs[sym->st_shndx].sh_name; + if (section(secname)) + warn_sec_mismatch(modname, name, elf, sym, r); + } + } +} + +/** + * Functions used only during module init is marked __init and is stored in + * a .init.text section. Likewise data is marked __initdata and stored in + * a .init.data section. + * If this section is one of these sections return 1 + * See include/linux/init.h for the details + **/ +static int init_section(const char *name) +{ + if (strcmp(name, ".init") == 0) + return 1; + if (strncmp(name, ".init.", strlen(".init.")) == 0) + return 1; + return 0; +} + +/** + * Identify sections from which references to a .init section is OK. + * + * Unfortunately references to read only data that referenced .init + * sections had to be excluded. Almost all of these are false + * positives, they are created by gcc. The downside of excluding rodata + * is that there really are some user references from rodata to + * init code, e.g. drivers/video/vgacon.c: + * + * const struct consw vga_con = { + * con_startup: vgacon_startup, + * + * where vgacon_startup is __init. If you want to wade through the false + * positives, take out the check for rodata. + **/ +static int init_section_ref_ok(const char *name) +{ + const char **s; + /* Absolute section names */ + const char *namelist1[] = { + ".init", + ".opd", /* see comment [OPD] at exit_section_ref_ok() */ + ".toc1", /* used by ppc64 */ + ".stab", + ".rodata", + ".text.lock", + "__bug_table", /* used by powerpc for BUG() */ + ".pci_fixup_header", + ".pci_fixup_final", + ".pdr", + "__param", + NULL + }; + /* Start of section names */ + const char *namelist2[] = { + ".init.", + ".altinstructions", + ".eh_frame", + ".debug", + NULL + }; + /* part of section name */ + const char *namelist3 [] = { + ".unwind", /* sample: IA_64.unwind.init.text */ + NULL + }; + + for (s = namelist1; *s; s++) + if (strcmp(*s, name) == 0) + return 1; + for (s = namelist2; *s; s++) + if (strncmp(*s, name, strlen(*s)) == 0) + return 1; + for (s = namelist3; *s; s++) + if (strstr(name, *s) != NULL) + return 1; + return 0; +} + +/* + * Functions used only during module exit is marked __exit and is stored in + * a .exit.text section. Likewise data is marked __exitdata and stored in + * a .exit.data section. + * If this section is one of these sections return 1 + * See include/linux/init.h for the details + **/ +static int exit_section(const char *name) +{ + if (strcmp(name, ".exit.text") == 0) + return 1; + if (strcmp(name, ".exit.data") == 0) + return 1; + return 0; + +} + +/* + * Identify sections from which references to a .exit section is OK. + * + * [OPD] Keith Ownes <kaos@sgi.com> commented: + * For our future {in}sanity, add a comment that this is the ppc .opd + * section, not the ia64 .opd section. + * ia64 .opd should not point to discarded sections. + **/ +static int exit_section_ref_ok(const char *name) +{ + const char **s; + /* Absolute section names */ + const char *namelist1[] = { + ".exit.text", + ".exit.data", + ".init.text", + ".opd", /* See comment [OPD] */ + ".toc1", /* used by ppc64 */ + ".altinstructions", + ".pdr", + "__bug_table", /* used by powerpc for BUG() */ + ".exitcall.exit", + ".eh_frame", + ".stab", + NULL + }; + /* Start of section names */ + const char *namelist2[] = { + ".debug", + NULL + }; + /* part of section name */ + const char *namelist3 [] = { + ".unwind", /* Sample: IA_64.unwind.exit.text */ + NULL + }; + + for (s = namelist1; *s; s++) + if (strcmp(*s, name) == 0) + return 1; + for (s = namelist2; *s; s++) + if (strncmp(*s, name, strlen(*s)) == 0) + return 1; + for (s = namelist3; *s; s++) + if (strstr(name, *s) != NULL) + return 1; + return 0; +} + +static void read_symbols(char *modname) { const char *symname; char *version; @@ -462,9 +877,7 @@ read_symbols(char *modname) /* When there's no vmlinux, don't print warnings about * unresolved symbols (since there'll be too many ;) */ if (is_vmlinux(modname)) { - unsigned int fake_crc = 0; have_vmlinux = 1; - add_exported_symbol("struct_module", mod, &fake_crc); mod->skip = 1; } @@ -474,6 +887,8 @@ read_symbols(char *modname) handle_modversions(mod, &info, sym, symname); handle_moddevtable(mod, &info, sym, symname); } + check_sec_ref(mod, modname, &info, init_section, init_section_ref_ok); + check_sec_ref(mod, modname, &info, exit_section, exit_section_ref_ok); version = get_modinfo(info.modinfo, info.modinfo_len, "version"); if (version) @@ -499,21 +914,20 @@ read_symbols(char *modname) * following helper, then compare to the file on disk and * only update the later if anything changed */ -void __attribute__((format(printf, 2, 3))) -buf_printf(struct buffer *buf, const char *fmt, ...) +void __attribute__((format(printf, 2, 3))) buf_printf(struct buffer *buf, + const char *fmt, ...) { char tmp[SZ]; int len; va_list ap; - + va_start(ap, fmt); len = vsnprintf(tmp, SZ, fmt, ap); buf_write(buf, tmp, len); va_end(ap); } -void -buf_write(struct buffer *buf, const char *s, int len) +void buf_write(struct buffer *buf, const char *s, int len) { if (buf->size - buf->pos < len) { buf->size += len + SZ; @@ -523,10 +937,10 @@ buf_write(struct buffer *buf, const char *s, int len) buf->pos += len; } -/* Header for the generated file */ - -void -add_header(struct buffer *b, struct module *mod) +/** + * Header for the generated file + **/ +static void add_header(struct buffer *b, struct module *mod) { buf_printf(b, "#include <linux/module.h>\n"); buf_printf(b, "#include <linux/vermagic.h>\n"); @@ -546,10 +960,10 @@ add_header(struct buffer *b, struct module *mod) buf_printf(b, "};\n"); } -/* Record CRCs for unresolved symbols */ - -void -add_versions(struct buffer *b, struct module *mod) +/** + * Record CRCs for unresolved symbols + **/ +static void add_versions(struct buffer *b, struct module *mod) { struct symbol *s, *exp; @@ -557,8 +971,8 @@ add_versions(struct buffer *b, struct module *mod) exp = find_symbol(s->name); if (!exp || exp->module == mod) { if (have_vmlinux && !s->weak) - fprintf(stderr, "*** Warning: \"%s\" [%s.ko] " - "undefined!\n", s->name, mod->name); + warn("\"%s\" [%s.ko] undefined!\n", + s->name, mod->name); continue; } s->module = exp->module; @@ -579,8 +993,7 @@ add_versions(struct buffer *b, struct module *mod) continue; } if (!s->crc_valid) { - fprintf(stderr, "*** Warning: \"%s\" [%s.ko] " - "has no CRC!\n", + warn("\"%s\" [%s.ko] has no CRC!\n", s->name, mod->name); continue; } @@ -590,8 +1003,8 @@ add_versions(struct buffer *b, struct module *mod) buf_printf(b, "};\n"); } -void -add_depends(struct buffer *b, struct module *mod, struct module *modules) +static void add_depends(struct buffer *b, struct module *mod, + struct module *modules) { struct symbol *s; struct module *m; @@ -621,8 +1034,7 @@ add_depends(struct buffer *b, struct module *mod, struct module *modules) buf_printf(b, "\";\n"); } -void -add_srcversion(struct buffer *b, struct module *mod) +static void add_srcversion(struct buffer *b, struct module *mod) { if (mod->srcversion[0]) { buf_printf(b, "\n"); @@ -631,8 +1043,7 @@ add_srcversion(struct buffer *b, struct module *mod) } } -void -write_if_changed(struct buffer *b, const char *fname) +static void write_if_changed(struct buffer *b, const char *fname) { char *tmp; FILE *file; @@ -676,8 +1087,7 @@ write_if_changed(struct buffer *b, const char *fname) fclose(file); } -void -read_dump(const char *fname) +static void read_dump(const char *fname, unsigned int kernel) { unsigned long size, pos = 0; void *file = grab_file(fname, &size); @@ -691,6 +1101,7 @@ read_dump(const char *fname) char *symname, *modname, *d; unsigned int crc; struct module *mod; + struct symbol *s; if (!(symname = strchr(line, '\t'))) goto fail; @@ -711,15 +1122,30 @@ read_dump(const char *fname) mod = new_module(NOFAIL(strdup(modname))); mod->skip = 1; } - add_exported_symbol(symname, mod, &crc); + s = sym_add_exported(symname, mod); + s->kernel = kernel; + s->preloaded = 1; + sym_update_crc(symname, mod, crc); } return; fail: fatal("parse error in symbol dump file\n"); } -void -write_dump(const char *fname) +/* For normal builds always dump all symbols. + * For external modules only dump symbols + * that are not read from kernel Module.symvers. + **/ +static int dump_sym(struct symbol *sym) +{ + if (!external_module) + return 1; + if (sym->vmlinux || sym->kernel) + return 0; + return 1; +} + +static void write_dump(const char *fname) { struct buffer buf = { }; struct symbol *symbol; @@ -728,34 +1154,33 @@ write_dump(const char *fname) for (n = 0; n < SYMBOL_HASH_SIZE ; n++) { symbol = symbolhash[n]; while (symbol) { - symbol = symbol->next; - } - } - - for (n = 0; n < SYMBOL_HASH_SIZE ; n++) { - symbol = symbolhash[n]; - while (symbol) { - buf_printf(&buf, "0x%08x\t%s\t%s\n", symbol->crc, - symbol->name, symbol->module->name); + if (dump_sym(symbol)) + buf_printf(&buf, "0x%08x\t%s\t%s\n", + symbol->crc, symbol->name, + symbol->module->name); symbol = symbol->next; } } write_if_changed(&buf, fname); } -int -main(int argc, char **argv) +int main(int argc, char **argv) { struct module *mod; struct buffer buf = { }; char fname[SZ]; - char *dump_read = NULL, *dump_write = NULL; + char *kernel_read = NULL, *module_read = NULL; + char *dump_write = NULL; int opt; - while ((opt = getopt(argc, argv, "i:mo:a")) != -1) { + while ((opt = getopt(argc, argv, "i:I:mo:a")) != -1) { switch(opt) { case 'i': - dump_read = optarg; + kernel_read = optarg; + break; + case 'I': + module_read = optarg; + external_module = 1; break; case 'm': modversions = 1; @@ -771,8 +1196,10 @@ main(int argc, char **argv) } } - if (dump_read) - read_dump(dump_read); + if (kernel_read) + read_dump(kernel_read, 1); + if (module_read) + read_dump(module_read, 0); while (optind < argc) { read_symbols(argv[optind++]); @@ -799,4 +1226,3 @@ main(int argc, char **argv) return 0; } - diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h index 7334d839145d..b14255c72a37 100644 --- a/scripts/mod/modpost.h +++ b/scripts/mod/modpost.h @@ -13,20 +13,30 @@ #if KERNEL_ELFCLASS == ELFCLASS32 -#define Elf_Ehdr Elf32_Ehdr -#define Elf_Shdr Elf32_Shdr +#define Elf_Ehdr Elf32_Ehdr +#define Elf_Shdr Elf32_Shdr #define Elf_Sym Elf32_Sym +#define Elf_Addr Elf32_Addr +#define Elf_Section Elf32_Section #define ELF_ST_BIND ELF32_ST_BIND #define ELF_ST_TYPE ELF32_ST_TYPE +#define Elf_Rela Elf32_Rela +#define ELF_R_SYM ELF32_R_SYM +#define ELF_R_TYPE ELF32_R_TYPE #else -#define Elf_Ehdr Elf64_Ehdr -#define Elf_Shdr Elf64_Shdr +#define Elf_Ehdr Elf64_Ehdr +#define Elf_Shdr Elf64_Shdr #define Elf_Sym Elf64_Sym +#define Elf_Addr Elf64_Addr +#define Elf_Section Elf64_Section #define ELF_ST_BIND ELF64_ST_BIND #define ELF_ST_TYPE ELF64_ST_TYPE +#define Elf_Rela Elf64_Rela +#define ELF_R_SYM ELF64_R_SYM +#define ELF_R_TYPE ELF64_R_TYPE #endif #if KERNEL_ELFDATA != HOST_ELFDATA @@ -91,17 +101,22 @@ struct elf_info { unsigned int modinfo_len; }; +/* file2alias.c */ void handle_moddevtable(struct module *mod, struct elf_info *info, Elf_Sym *sym, const char *symname); - void add_moddevtable(struct buffer *buf, struct module *mod); +/* sumversion.c */ void maybe_frob_rcs_version(const char *modfilename, char *version, void *modinfo, unsigned long modinfo_offset); void get_src_version(const char *modname, char sum[], unsigned sumlen); +/* from modpost.c */ void *grab_file(const char *filename, unsigned long *size); char* get_next_line(unsigned long *pos, void *file, unsigned long size); void release_file(void *file, unsigned long size); + +void fatal(const char *fmt, ...); +void warn(const char *fmt, ...); diff --git a/scripts/mod/sumversion.c b/scripts/mod/sumversion.c index 43271a1ca01e..8a2875689e4d 100644 --- a/scripts/mod/sumversion.c +++ b/scripts/mod/sumversion.c @@ -316,8 +316,7 @@ static int parse_source_files(const char *objfile, struct md4_ctx *md) file = grab_file(cmd, &flen); if (!file) { - fprintf(stderr, "Warning: could not find %s for %s\n", - cmd, objfile); + warn("could not find %s for %s\n", cmd, objfile); goto out; } @@ -355,9 +354,8 @@ static int parse_source_files(const char *objfile, struct md4_ctx *md) /* Check if this file is in same dir as objfile */ if ((strstr(line, dir)+strlen(dir)-1) == strrchr(line, '/')) { if (!parse_file(line, md)) { - fprintf(stderr, - "Warning: could not open %s: %s\n", - line, strerror(errno)); + warn("could not open %s: %s\n", + line, strerror(errno)); goto out_file; } @@ -383,8 +381,11 @@ void get_src_version(const char *modname, char sum[], unsigned sumlen) struct md4_ctx md; char *sources, *end, *fname; const char *basename; - char filelist[strlen(getenv("MODVERDIR")) + strlen("/") + - strlen(modname) - strlen(".o") + strlen(".mod") + 1 ]; + char filelist[PATH_MAX + 1]; + char *modverdir = getenv("MODVERDIR"); + + if (!modverdir) + modverdir = "."; /* Source files for module are in .tmp_versions/modname.mod, after the first line. */ @@ -392,28 +393,25 @@ void get_src_version(const char *modname, char sum[], unsigned sumlen) basename = strrchr(modname, '/') + 1; else basename = modname; - sprintf(filelist, "%s/%.*s.mod", getenv("MODVERDIR"), + sprintf(filelist, "%s/%.*s.mod", modverdir, (int) strlen(basename) - 2, basename); file = grab_file(filelist, &len); if (!file) { - fprintf(stderr, "Warning: could not find versions for %s\n", - filelist); + warn("could not find versions for %s\n", filelist); return; } sources = strchr(file, '\n'); if (!sources) { - fprintf(stderr, "Warning: malformed versions file for %s\n", - modname); + warn("malformed versions file for %s\n", modname); goto release; } sources++; end = strchr(sources, '\n'); if (!end) { - fprintf(stderr, "Warning: bad ending versions file for %s\n", - modname); + warn("bad ending versions file for %s\n", modname); goto release; } *end = '\0'; @@ -438,19 +436,19 @@ static void write_version(const char *filename, const char *sum, fd = open(filename, O_RDWR); if (fd < 0) { - fprintf(stderr, "Warning: changing sum in %s failed: %s\n", + warn("changing sum in %s failed: %s\n", filename, strerror(errno)); return; } if (lseek(fd, offset, SEEK_SET) == (off_t)-1) { - fprintf(stderr, "Warning: changing sum in %s:%lu failed: %s\n", + warn("changing sum in %s:%lu failed: %s\n", filename, offset, strerror(errno)); goto out; } if (write(fd, sum, strlen(sum)+1) != strlen(sum)+1) { - fprintf(stderr, "Warning: writing sum in %s failed: %s\n", + warn("writing sum in %s failed: %s\n", filename, strerror(errno)); goto out; } diff --git a/scripts/namespace.pl b/scripts/namespace.pl index 88e30e82f1ca..f34373853ef8 100644 --- a/scripts/namespace.pl +++ b/scripts/namespace.pl @@ -66,8 +66,8 @@ require 5; # at least perl 5 use strict; use File::Find; -my $nm = "/usr/bin/nm -p"; -my $objdump = "/usr/bin/objdump -s -j .comment"; +my $nm = ($ENV{'NM'} || "nm") . " -p"; +my $objdump = ($ENV{'OBJDUMP'} || "objdump") . " -s -j .comment"; my $srctree = ""; my $objtree = ""; $srctree = "$ENV{'srctree'}/" if (exists($ENV{'srctree'})); diff --git a/scripts/package/Makefile b/scripts/package/Makefile index c201ef001f09..7c434e037e7f 100644 --- a/scripts/package/Makefile +++ b/scripts/package/Makefile @@ -32,12 +32,11 @@ MKSPEC := $(srctree)/scripts/package/mkspec PREV := set -e; cd ..; # rpm-pkg -.PHONY: rpm-pkg rpm - +# --------------------------------------------------------------------------- $(objtree)/kernel.spec: $(MKSPEC) $(srctree)/Makefile $(CONFIG_SHELL) $(MKSPEC) > $@ -rpm-pkg rpm: $(objtree)/kernel.spec +rpm-pkg rpm: $(objtree)/kernel.spec FORCE $(MAKE) clean $(PREV) ln -sf $(srctree) $(KERNELPATH) $(PREV) tar -cz $(RCS_TAR_IGNORE) -f $(KERNELPATH).tar.gz $(KERNELPATH)/. @@ -54,11 +53,11 @@ rpm-pkg rpm: $(objtree)/kernel.spec clean-files := $(objtree)/kernel.spec # binrpm-pkg -.PHONY: binrpm-pkg +# --------------------------------------------------------------------------- $(objtree)/binkernel.spec: $(MKSPEC) $(srctree)/Makefile $(CONFIG_SHELL) $(MKSPEC) prebuilt > $@ - -binrpm-pkg: $(objtree)/binkernel.spec + +binrpm-pkg: $(objtree)/binkernel.spec FORCE $(MAKE) KBUILD_SRC= set -e; \ $(CONFIG_SHELL) $(srctree)/scripts/mkversion > $(objtree)/.tmp_version @@ -71,9 +70,7 @@ clean-files += $(objtree)/binkernel.spec # Deb target # --------------------------------------------------------------------------- -# -.PHONY: deb-pkg -deb-pkg: +deb-pkg: FORCE $(MAKE) KBUILD_SRC= $(CONFIG_SHELL) $(srctree)/scripts/package/builddeb @@ -82,8 +79,7 @@ clean-dirs += $(objtree)/debian/ # tarball targets # --------------------------------------------------------------------------- -.PHONY: tar%pkg -tar%pkg: +tar%pkg: FORCE $(MAKE) KBUILD_SRC= $(CONFIG_SHELL) $(srctree)/scripts/package/buildtar $@ @@ -92,7 +88,7 @@ clean-dirs += $(objtree)/tar-install/ # Help text displayed when executing 'make help' # --------------------------------------------------------------------------- -help: +help: FORCE @echo ' rpm-pkg - Build the kernel as an RPM package' @echo ' binrpm-pkg - Build an rpm package containing the compiled kernel' @echo ' and modules' diff --git a/scripts/profile2linkerlist.pl b/scripts/profile2linkerlist.pl new file mode 100644 index 000000000000..cb4260ebdb91 --- /dev/null +++ b/scripts/profile2linkerlist.pl @@ -0,0 +1,21 @@ +#!/usr/bin/perl + +# +# Takes a (sorted) output of readprofile and turns it into a list suitable for +# linker scripts +# +# usage: +# readprofile | sort -rn | perl profile2linkerlist.pl > functionlist +# + +while (<>) { + my $line = $_; + + $_ =~ /\W*[0-9]+\W*([a-zA-Z\_0-9]+)\W*[0-9]+/; + + if ( ($line =~ /unknown/) || ($line =~ /total/)) { + + } else { + print "*(.text.$1)\n"; + } +} diff --git a/scripts/reference_discarded.pl b/scripts/reference_discarded.pl deleted file mode 100644 index 4ee6ab2135b3..000000000000 --- a/scripts/reference_discarded.pl +++ /dev/null @@ -1,112 +0,0 @@ -#!/usr/bin/perl -w -# -# reference_discarded.pl (C) Keith Owens 2001 <kaos@ocs.com.au> -# -# Released under GPL V2. -# -# List dangling references to vmlinux discarded sections. - -use strict; -die($0 . " takes no arguments\n") if($#ARGV >= 0); - -my %object; -my $object; -my $line; -my $ignore; -my $errorcount; - -$| = 1; - -# printf("Finding objects, "); -open(OBJDUMP_LIST, "find . -name '*.o' | xargs objdump -h |") || die "getting objdump list failed"; -while (defined($line = <OBJDUMP_LIST>)) { - chomp($line); - if ($line =~ /:\s+file format/) { - ($object = $line) =~ s/:.*//; - $object{$object}->{'module'} = 0; - $object{$object}->{'size'} = 0; - $object{$object}->{'off'} = 0; - } - if ($line =~ /^\s*\d+\s+\.modinfo\s+/) { - $object{$object}->{'module'} = 1; - } - if ($line =~ /^\s*\d+\s+\.comment\s+/) { - ($object{$object}->{'size'}, $object{$object}->{'off'}) = (split(' ', $line))[2,5]; - } -} -close(OBJDUMP_LIST); -# printf("%d objects, ", scalar keys(%object)); -$ignore = 0; -foreach $object (keys(%object)) { - if ($object{$object}->{'module'}) { - ++$ignore; - delete($object{$object}); - } -} -# printf("ignoring %d module(s)\n", $ignore); - -# Ignore conglomerate objects, they have been built from multiple objects and we -# only care about the individual objects. If an object has more than one GCC: -# string in the comment section then it is conglomerate. This does not filter -# out conglomerates that consist of exactly one object, can't be helped. - -# printf("Finding conglomerates, "); -$ignore = 0; -foreach $object (keys(%object)) { - if (exists($object{$object}->{'off'})) { - my ($off, $size, $comment, $l); - $off = hex($object{$object}->{'off'}); - $size = hex($object{$object}->{'size'}); - open(OBJECT, "<$object") || die "cannot read $object"; - seek(OBJECT, $off, 0) || die "seek to $off in $object failed"; - $l = read(OBJECT, $comment, $size); - die "read $size bytes from $object .comment failed" if ($l != $size); - close(OBJECT); - if ($comment =~ /GCC\:.*GCC\:/m || $object =~ /built-in\.o/) { - ++$ignore; - delete($object{$object}); - } - } -} -# printf("ignoring %d conglomerate(s)\n", $ignore); - -# printf("Scanning objects\n"); - -# Keith Ownes <kaos@sgi.com> commented: -# For our future {in}sanity, add a comment that this is the ppc .opd -# section, not the ia64 .opd section. -# ia64 .opd should not point to discarded sections. -$errorcount = 0; -foreach $object (keys(%object)) { - my $from; - open(OBJDUMP, "objdump -r $object|") || die "cannot objdump -r $object"; - while (defined($line = <OBJDUMP>)) { - chomp($line); - if ($line =~ /RELOCATION RECORDS FOR /) { - ($from = $line) =~ s/.*\[([^]]*).*/$1/; - } - if (($line =~ /\.text\.exit$/ || - $line =~ /\.exit\.text$/ || - $line =~ /\.data\.exit$/ || - $line =~ /\.exit\.data$/ || - $line =~ /\.exitcall\.exit$/) && - ($from !~ /\.text\.exit$/ && - $from !~ /\.exit\.text$/ && - $from !~ /\.data\.exit$/ && - $from !~ /\.opd$/ && - $from !~ /\.exit\.data$/ && - $from !~ /\.altinstructions$/ && - $from !~ /\.pdr$/ && - $from !~ /\.debug_.*$/ && - $from !~ /\.exitcall\.exit$/ && - $from !~ /\.eh_frame$/ && - $from !~ /\.stab$/)) { - printf("Error: %s %s refers to %s\n", $object, $from, $line); - $errorcount = $errorcount + 1; - } - } - close(OBJDUMP); -} -# printf("Done\n"); - -exit(0); diff --git a/scripts/reference_init.pl b/scripts/reference_init.pl deleted file mode 100644 index 7f6960b175a2..000000000000 --- a/scripts/reference_init.pl +++ /dev/null @@ -1,108 +0,0 @@ -#!/usr/bin/perl -w -# -# reference_init.pl (C) Keith Owens 2002 <kaos@ocs.com.au> -# -# List references to vmlinux init sections from non-init sections. - -# Unfortunately I had to exclude references from read only data to .init -# sections, almost all of these are false positives, they are created by -# gcc. The downside of excluding rodata is that there really are some -# user references from rodata to init code, e.g. drivers/video/vgacon.c -# -# const struct consw vga_con = { -# con_startup: vgacon_startup, -# -# where vgacon_startup is __init. If you want to wade through the false -# positives, take out the check for rodata. - -use strict; -die($0 . " takes no arguments\n") if($#ARGV >= 0); - -my %object; -my $object; -my $line; -my $ignore; - -$| = 1; - -printf("Finding objects, "); -open(OBJDUMP_LIST, "find . -name '*.o' | xargs objdump -h |") || die "getting objdump list failed"; -while (defined($line = <OBJDUMP_LIST>)) { - chomp($line); - if ($line =~ /:\s+file format/) { - ($object = $line) =~ s/:.*//; - $object{$object}->{'module'} = 0; - $object{$object}->{'size'} = 0; - $object{$object}->{'off'} = 0; - } - if ($line =~ /^\s*\d+\s+\.modinfo\s+/) { - $object{$object}->{'module'} = 1; - } - if ($line =~ /^\s*\d+\s+\.comment\s+/) { - ($object{$object}->{'size'}, $object{$object}->{'off'}) = (split(' ', $line))[2,5]; - } -} -close(OBJDUMP_LIST); -printf("%d objects, ", scalar keys(%object)); -$ignore = 0; -foreach $object (keys(%object)) { - if ($object{$object}->{'module'}) { - ++$ignore; - delete($object{$object}); - } -} -printf("ignoring %d module(s)\n", $ignore); - -# Ignore conglomerate objects, they have been built from multiple objects and we -# only care about the individual objects. If an object has more than one GCC: -# string in the comment section then it is conglomerate. This does not filter -# out conglomerates that consist of exactly one object, can't be helped. - -printf("Finding conglomerates, "); -$ignore = 0; -foreach $object (keys(%object)) { - if (exists($object{$object}->{'off'})) { - my ($off, $size, $comment, $l); - $off = hex($object{$object}->{'off'}); - $size = hex($object{$object}->{'size'}); - open(OBJECT, "<$object") || die "cannot read $object"; - seek(OBJECT, $off, 0) || die "seek to $off in $object failed"; - $l = read(OBJECT, $comment, $size); - die "read $size bytes from $object .comment failed" if ($l != $size); - close(OBJECT); - if ($comment =~ /GCC\:.*GCC\:/m || $object =~ /built-in\.o/) { - ++$ignore; - delete($object{$object}); - } - } -} -printf("ignoring %d conglomerate(s)\n", $ignore); - -printf("Scanning objects\n"); -foreach $object (sort(keys(%object))) { - my $from; - open(OBJDUMP, "objdump -r $object|") || die "cannot objdump -r $object"; - while (defined($line = <OBJDUMP>)) { - chomp($line); - if ($line =~ /RELOCATION RECORDS FOR /) { - ($from = $line) =~ s/.*\[([^]]*).*/$1/; - } - if (($line =~ /\.init$/ || $line =~ /\.init\./) && - ($from !~ /\.init$/ && - $from !~ /\.init\./ && - $from !~ /\.stab$/ && - $from !~ /\.rodata$/ && - $from !~ /\.text\.lock$/ && - $from !~ /\.pci_fixup_header$/ && - $from !~ /\.pci_fixup_final$/ && - $from !~ /\.pdr$/ && - $from !~ /\__param$/ && - $from !~ /\.altinstructions/ && - $from !~ /\.eh_frame/ && - $from !~ /\.debug_/)) { - printf("Error: %s %s refers to %s\n", $object, $from, $line); - } - } - close(OBJDUMP); -} -printf("Done\n"); |