Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (33 commits)
  xtensa: use DATA_DATA in xtensa
  powerpc: add missing DATA_DATA to powerpc
  cris: use DATA_DATA in cris
  kallsyms: remove usage of memmem and _GNU_SOURCE from scripts/kallsyms.c
  kbuild: use -fno-optimize-sibling-calls unconditionally
  kconfig: reset generated values only if Kconfig and .config agree.
  kbuild: fix the warning when running make tags
  kconfig: strip 'CONFIG_' automatically in kernel configuration search
  kbuild: use POSIX BRE in headers install target
  Whitelist references from __dbe_table to .init
  modpost white list pattern adjustment
  kbuild: do section mismatch check on full vmlinux
  kbuild: whitelist references from variables named _timer to .init.text
  kbuild: remove hardcoded _logo names from modpost
  kbuild: remove hardcoded apic_es7000 from modpost
  kbuild: warn about references from .init.text to .exit.text
  kbuild: consolidate section checks
  kbuild: refactor code in modpost to improve maintainability
  kbuild: ignore section mismatch warnings originating from .note section
  kbuild: .paravirtprobe section is obsolete, so modpost doesn't need to handle it
  ...

Documentation/kbuild/makefiles.txt

@@ -501,6 +501,20 @@ more details, with real examples.
 	The third parameter may be a text as in this example, but it may also
 	be an expanded variable or a macro.
 
+    cc-fullversion
+	cc-fullversion is useful when the exact version of gcc is needed.
+	One typical use-case is when a specific GCC version is broken.
+	cc-fullversion points out a more specific version than cc-version does.
+
+	Example:
+		#arch/powerpc/Makefile
+		$(Q)if test "$(call cc-fullversion)" = "040200" ; then \
+			echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \
+			false ; \
+		fi
+
+	In this example for a specific GCC version the build will error out explaining
+	to the user why it stops.
 
 === 4 Host Program support
 

Kbuild

@@ -13,6 +13,7 @@ offsets-file := include/asm-$(ARCH)/asm-offsets.h
 always  := $(offsets-file)
 targets := $(offsets-file)
 targets += arch/$(ARCH)/kernel/asm-offsets.s
+clean-files := $(addprefix $(objtree)/,$(targets))
 
 # Default sed regexp - multiline due to syntax constraints
 define sed-y

Makefile

@@ -492,7 +492,7 @@ endif
 include $(srctree)/arch/$(ARCH)/Makefile
 
 ifdef CONFIG_FRAME_POINTER
-CFLAGS		+= -fno-omit-frame-pointer $(call cc-option,-fno-optimize-sibling-calls,)
+CFLAGS		+= -fno-omit-frame-pointer -fno-optimize-sibling-calls
 else
 CFLAGS		+= -fomit-frame-pointer
 endif
@@ -618,7 +618,7 @@ quiet_cmd_vmlinux__ ?= LD      $@
       cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \
       -T $(vmlinux-lds) $(vmlinux-init)                          \
       --start-group $(vmlinux-main) --end-group                  \
-      $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) FORCE ,$^)
+      $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^)
 
 # Generate new vmlinux version
 quiet_cmd_vmlinux_version = GEN     .version
@@ -742,15 +742,31 @@ debug_kallsyms: .tmp_map$(last_kallsyms)
 
 endif # ifdef CONFIG_KALLSYMS
 
+# Do modpost on a prelinked vmlinux. The finally linked vmlinux has
+# relevant sections renamed as per the linker script.
+quiet_cmd_vmlinux-modpost = LD      $@
+      cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@                          \
+	 $(vmlinux-init) --start-group $(vmlinux-main) --end-group             \
+	 $(filter-out $(vmlinux-init) $(vmlinux-main) $(vmlinux-lds) FORCE ,$^)
+define rule_vmlinux-modpost
+	:
+	+$(call cmd,vmlinux-modpost)
+	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@
+	$(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd
+endef
+
 # vmlinux image - including updated kernel symbols
-vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) FORCE
+vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) vmlinux.o FORCE
 ifdef CONFIG_HEADERS_CHECK
 	$(Q)$(MAKE) -f $(srctree)/Makefile headers_check
 endif
+	$(call vmlinux-modpost)
 	$(call if_changed_rule,vmlinux__)
-	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@
 	$(Q)rm -f .old_version
 
+vmlinux.o: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) FORCE
+	$(call if_changed_rule,vmlinux-modpost)
+
 # The actual objects are generated when descending, 
 # make sure no implicit rule kicks in
 $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ;
@@ -1323,7 +1339,7 @@ define xtags
 		-I __initdata,__exitdata,__acquires,__releases \
 		-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
 		--extra=+f --c-kinds=+px \
-		--regex-asm='/ENTRY\(([^)]*)\).*/\1/'; \
+		--regex-asm='/^ENTRY\(([^)]*)\).*/\1/'; \
 	    $(all-kconfigs) | xargs $1 -a \
 		--langdef=kconfig \
 		--language-force=kconfig \

arch/cris/arch-v10/vmlinux.lds.S

@@ -44,7 +44,7 @@ SECTIONS
 	___data_start = . ;
 	__Sdata = . ;
 	.data : {                     /* Data */
-		*(.data)
+		DATA_DATA
 	}
 	__edata = . ;                 /* End of data section */
 	_edata = . ;

arch/cris/arch-v32/vmlinux.lds.S

@@ -49,7 +49,7 @@ SECTIONS
 	___data_start = . ;
 	__Sdata = . ;
 	.data : {                     /* Data */
-		*(.data)
+		DATA_DATA
 	}
 	__edata = . ;		/* End of data section. */
 	_edata = . ;

arch/i386/mach-generic/es7000.c

@@ -66,4 +66,4 @@ static int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 }
 #endif
 
-struct genapic apic_es7000 = APIC_INIT("es7000", probe_es7000);
+struct genapic __initdata_refok apic_es7000 = APIC_INIT("es7000", probe_es7000);

arch/powerpc/Makefile

@@ -201,6 +201,14 @@ checkbin:
 			false; \
 		fi ; \
 	fi
+	@if test "$(call cc-fullversion)" = "040200" \
+	    && test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \
+		echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \
+		echo 'kernel with modules enabled.' ; \
+		echo -n '*** Please use a different GCC version or ' ; \
+		echo 'disable kernel modules' ; \
+		false ; \
+	fi
 	@if ! /bin/echo dssall | $(AS) -many -o $(TOUT) >/dev/null 2>&1 ; then \
 		echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build ' ; \
 		echo 'correctly with old versions of binutils.' ; \

arch/powerpc/kernel/vmlinux.lds.S

@@ -177,7 +177,9 @@ SECTIONS
 	}
 #else
 	.data : {
-		*(.data .data.rel* .toc1)
+		DATA_DATA
+		*(.data.rel*)
+		*(.toc1)
 		*(.branch_lt)
 	}
 

arch/xtensa/kernel/vmlinux.lds.S

@@ -118,7 +118,8 @@ SECTIONS
   _fdata = .;
   .data :
   {
-    *(.data) CONSTRUCTORS
+    DATA_DATA
+    CONSTRUCTORS
     . = ALIGN(XCHAL_ICACHE_LINESIZE);
     *(.data.cacheline_aligned)
   }

drivers/video/logo/logo.c

@@ -34,8 +34,11 @@ extern const struct linux_logo logo_superh_vga16;
 extern const struct linux_logo logo_superh_clut224;
 extern const struct linux_logo logo_m32r_clut224;
 
-
-const struct linux_logo *fb_find_logo(int depth)
+/* logo's are marked __initdata. Use __init_refok to tell
+ * modpost that it is intended that this function uses data
+ * marked __initdata.
+ */
+const struct linux_logo * __init_refok fb_find_logo(int depth)
 {
 	const struct linux_logo *logo = NULL;
 

scripts/Kbuild.include

@@ -100,9 +100,14 @@ cc-option-align = $(subst -functions=0,,\
 	$(call cc-option,-falign-functions=0,-malign-functions=0))
 
 # cc-version
-# Usage gcc-ver := $(call cc-version,$(CC))
+# Usage gcc-ver := $(call cc-version)
 cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))
 
+# cc-fullversion
+# Usage gcc-ver := $(call cc-fullversion)
+cc-fullversion = $(shell $(CONFIG_SHELL) \
+	$(srctree)/scripts/gcc-version.sh -p $(CC))
+
 # cc-ifversion
 # Usage:  EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
 cc-ifversion = $(shell [ $(call cc-version, $(CC)) $(1) $(2) ] && echo $(3))

scripts/Makefile.build

@@ -7,6 +7,22 @@ src := $(obj)
 PHONY := __build
 __build:
 
+# Init all relevant variables used in kbuild files so
+# 1) they have correct type
+# 2) they do not inherit any value from the environment
+obj-y :=
+obj-m :=
+lib-y :=
+lib-m :=
+always :=
+targets :=
+subdir-y :=
+subdir-m :=
+EXTRA_AFLAGS   :=
+EXTRA_CFLAGS   :=
+EXTRA_CPPFLAGS :=
+EXTRA_LDFLAGS  :=
+
 # Read .config if it exist, otherwise ignore
 -include include/config/auto.conf
 

scripts/Makefile.headersinst

@@ -11,13 +11,13 @@ UNIFDEF := scripts/unifdef -U__KERNEL__
 
 # Eliminate the contents of (and inclusions of) compiler.h
 HDRSED  := sed 	-e "s/ inline / __inline__ /g" \
-		-e "s/[[:space:]]__user[[:space:]]\+/ /g" \
-		-e "s/(__user[[:space:]]\+/ (/g" \
-		-e "s/[[:space:]]__force[[:space:]]\+/ /g" \
-		-e "s/(__force[[:space:]]\+/ (/g" \
-		-e "s/[[:space:]]__iomem[[:space:]]\+/ /g" \
-		-e "s/(__iomem[[:space:]]\+/ (/g" \
-		-e "s/[[:space:]]__attribute_const__[[:space:]]\+/\ /g" \
+		-e "s/[[:space:]]__user[[:space:]]\{1,\}/ /g" \
+		-e "s/(__user[[:space:]]\{1,\}/ (/g" \
+		-e "s/[[:space:]]__force[[:space:]]\{1,\}/ /g" \
+		-e "s/(__force[[:space:]]\{1,\}/ (/g" \
+		-e "s/[[:space:]]__iomem[[:space:]]\{1,\}/ /g" \
+		-e "s/(__iomem[[:space:]]\{1,\}/ (/g" \
+		-e "s/[[:space:]]__attribute_const__[[:space:]]\{1,\}/\ /g" \
 		-e "s/[[:space:]]__attribute_const__$$//" \
 		-e "/^\#include <linux\/compiler.h>/d"
 

scripts/Makefile.modpost

@@ -70,10 +70,10 @@ __modpost: $(modules:.ko=.o) FORCE
 	$(call cmd,modpost) $(wildcard vmlinux) $(filter-out FORCE,$^)
 
 quiet_cmd_kernel-mod = MODPOST $@
-      cmd_kernel-mod = $(cmd_modpost) $(KBUILD_VMLINUX_OBJS)
+      cmd_kernel-mod = $(cmd_modpost) $@
 
 PHONY += vmlinux
-vmlinux: FORCE
+vmlinux.o: FORCE
 	$(call cmd,kernel-mod)
 
 # Declare generated files as targets for modpost

scripts/cleanfile

@@ -7,7 +7,9 @@
 use bytes;
 use File::Basename;
 
-#
+# Default options
+$max_width = 79;
+
 # Clean up space-tab sequences, either by removing spaces or
 # replacing them with tabs.
 sub clean_space_tabs($)
@@ -48,9 +50,49 @@ sub clean_space_tabs($)
     return $lo;
 }
 
+# Compute the visual width of a string
+sub strwidth($) {
+    no bytes;			# Tab alignment depends on characters
+
+    my($li) = @_;
+    my($c, $i);
+    my $pos = 0;
+    my $mlen = 0;
+
+    for ($i = 0; $i < length($li); $i++) {
+	$c = substr($li,$i,1);
+	if ($c eq "\t") {
+	    $pos = ($pos+8) & ~7;
+	} elsif ($c eq "\n") {
+	    $mlen = $pos if ($pos > $mlen);
+	    $pos = 0;
+	} else {
+	    $pos++;
+	}
+    }
+
+    $mlen = $pos if ($pos > $mlen);
+    return $mlen;
+}
+
 $name = basename($0);
 
-foreach $f ( @ARGV ) {
+@files = ();
+
+while (defined($a = shift(@ARGV))) {
+    if ($a =~ /^-/) {
+	if ($a eq '-width' || $a eq '-w') {
+	    $max_width = shift(@ARGV)+0;
+	} else {
+	    print STDERR "Usage: $name [-width #] files...\n";
+	    exit 1;
+	}
+    } else {
+	push(@files, $a);
+    }
+}
+
+foreach $f ( @files ) {
     print STDERR "$name: $f\n";
 
     if (! -f $f) {
@@ -90,8 +132,10 @@ foreach $f ( @ARGV ) {
 
     @blanks = ();
     @lines  = ();
+    $lineno = 0;
 
     while ( defined($line = <FILE>) ) {
+	$lineno++;
 	$in_bytes += length($line);
 	$line =~ s/[ \t\r]*$//;		# Remove trailing spaces
 	$line = clean_space_tabs($line);
@@ -107,6 +151,12 @@ foreach $f ( @ARGV ) {
 	    @blanks = ();
 	    $blank_bytes = 0;
 	}
+
+	$l_width = strwidth($line);
+	if ($max_width && $l_width > $max_width) {
+	    print STDERR
+		"$f:$lineno: line exceeds $max_width characters ($l_width)\n";
+	}
     }
 
     # Any blanks at the end of the file are discarded

scripts/cleanpatch

@@ -7,7 +7,9 @@
 use bytes;
 use File::Basename;
 
-#
+# Default options
+$max_width = 79;
+
 # Clean up space-tab sequences, either by removing spaces or
 # replacing them with tabs.
 sub clean_space_tabs($)
@@ -48,9 +50,49 @@ sub clean_space_tabs($)
     return $lo;
 }
 
+# Compute the visual width of a string
+sub strwidth($) {
+    no bytes;			# Tab alignment depends on characters
+
+    my($li) = @_;
+    my($c, $i);
+    my $pos = 0;
+    my $mlen = 0;
+
+    for ($i = 0; $i < length($li); $i++) {
+	$c = substr($li,$i,1);
+	if ($c eq "\t") {
+	    $pos = ($pos+8) & ~7;
+	} elsif ($c eq "\n") {
+	    $mlen = $pos if ($pos > $mlen);
+	    $pos = 0;
+	} else {
+	    $pos++;
+	}
+    }
+
+    $mlen = $pos if ($pos > $mlen);
+    return $mlen;
+}
+
 $name = basename($0);
 
-foreach $f ( @ARGV ) {
+@files = ();
+
+while (defined($a = shift(@ARGV))) {
+    if ($a =~ /^-/) {
+	if ($a eq '-width' || $a eq '-w') {
+	    $max_width = shift(@ARGV)+0;
+	} else {
+	    print STDERR "Usage: $name [-width #] files...\n";
+	    exit 1;
+	}
+    } else {
+	push(@files, $a);
+    }
+}
+
+foreach $f ( @files ) {
     print STDERR "$name: $f\n";
 
     if (! -f $f) {
@@ -86,6 +128,7 @@ foreach $f ( @ARGV ) {
 
     $in_bytes = 0;
     $out_bytes = 0;
+    $lineno = 0;
 
     @lines  = ();
 
@@ -93,10 +136,12 @@ foreach $f ( @ARGV ) {
     $err = 0;
 
     while ( defined($line = <FILE>) ) {
+	$lineno++;
 	$in_bytes += length($line);
 
 	if (!$in_hunk) {
-	    if ($line =~ /^\@\@\s+\-([0-9]+),([0-9]+)\s+\+([0-9]+),([0-9]+)\s\@\@/) {
+	    if ($line =~
+		/^\@\@\s+\-([0-9]+),([0-9]+)\s+\+([0-9]+),([0-9]+)\s\@\@/) {
 		$minus_lines = $2;
 		$plus_lines = $4;
 		if ($minus_lines || $plus_lines) {
@@ -117,6 +162,13 @@ foreach $f ( @ARGV ) {
 		$text =~ s/[ \t\r]*$//;		# Remove trailing spaces
 		$text = clean_space_tabs($text);
 
+		$l_width = strwidth($text);
+		if ($max_width && $l_width > $max_width) {
+		    print STDERR
+			"$f:$lineno: adds line exceeds $max_width ",
+			"characters ($l_width)\n";
+		}
+
 		push(@hunk_lines, '+'.$text);
 	    } elsif ($line =~ /^\-/) {
 		$minus_lines--;

scripts/gcc-version.sh

 #!/bin/sh
 #
-# gcc-version gcc-command
+# gcc-version [-p] gcc-command
 #
 # Prints the gcc version of `gcc-command' in a canonical 4-digit form
 # such as `0295' for gcc-2.95, `0303' for gcc-3.3, etc.
 #
+# With the -p option, prints the patchlevel as well, for example `029503' for
+# gcc-2.95.3, `030301' for gcc-3.3.1, etc.
+#
+
+if [ $1 = "-p" ] ; then with_patchlevel=1; shift; fi
 
 compiler="$*"
 
 MAJOR=$(echo __GNUC__ | $compiler -E -xc - | tail -n 1)
 MINOR=$(echo __GNUC_MINOR__ | $compiler -E -xc - | tail -n 1)
-printf "%02d%02d\\n" $MAJOR $MINOR
-
+if [ "x$with_patchlevel" != "x" ] ; then
+	PATCHLEVEL=$(echo __GNUC_PATCHLEVEL__ | $compiler -E -xc - | tail -n 1)
+	printf "%02d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL
+else
+	printf "%02d%02d\\n" $MAJOR $MINOR
+fi

scripts/gen_initramfs_list.sh

@@ -19,11 +19,11 @@ $0 [-o <file>] [-u <uid>] [-g <gid>] {-d | <cpio_source>} ...
 	-o <file>      Create gzipped initramfs file named <file> using
 		       gen_init_cpio and gzip
 	-u <uid>       User ID to map to user ID 0 (root).
-		       <uid> is only meaningful if <cpio_source>
-		       is a directory.
+		       <uid> is only meaningful if <cpio_source> is a
+		       directory.  "squash" forces all files to uid 0.
 	-g <gid>       Group ID to map to group ID 0 (root).
-		       <gid> is only meaningful if <cpio_source>
-		       is a directory.
+		       <gid> is only meaningful if <cpio_source> is a
+		       directory.  "squash" forces all files to gid 0.
 	<cpio_source>  File list or directory for cpio archive.
 		       If <cpio_source> is a .cpio file it will be used
 		       as direct input to initramfs.
@@ -113,8 +113,8 @@ parse() {
 	local gid="$4"
 	local ftype=$(filetype "${location}")
 	# remap uid/gid to 0 if necessary
-	[ "$uid" -eq "$root_uid" ] && uid=0
-	[ "$gid" -eq "$root_gid" ] && gid=0
+	[ "$root_uid" = "squash" ] && uid=0 || [ "$uid" -eq "$root_uid" ] && uid=0
+	[ "$root_gid" = "squash" ] && gid=0 || [ "$gid" -eq "$root_gid" ] && gid=0
 	local str="${mode} ${uid} ${gid}"
 
 	[ "${ftype}" == "invalid" ] && return 0

scripts/kallsyms.c

@@ -24,8 +24,6 @@
  *
  */
 
-#define _GNU_SOURCE
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -378,6 +376,17 @@ static void build_initial_tok_table(void)
 	table_cnt = pos;
 }
 
+static void *find_token(unsigned char *str, int len, unsigned char *token)
+{
+	int i;
+
+	for (i = 0; i < len - 1; i++) {
+		if (str[i] == token[0] && str[i+1] == token[1])
+			return &str[i];
+	}
+	return NULL;
+}
+
 /* replace a given token in all the valid symbols. Use the sampled symbols
  * to update the counts */
 static void compress_symbols(unsigned char *str, int idx)
@@ -391,7 +400,7 @@ static void compress_symbols(unsigned char *str, int idx)
 		p1 = table[i].sym;
 
 		/* find the token on the symbol */
-		p2 = memmem(p1, len, str, 2);
+		p2 = find_token(p1, len, str);
 		if (!p2) continue;
 
 		/* decrease the counts for this symbol's tokens */
@@ -410,7 +419,7 @@ static void compress_symbols(unsigned char *str, int idx)
 			if (size < 2) break;
 
 			/* find the token on the symbol */
-			p2 = memmem(p1, size, str, 2);
+			p2 = find_token(p1, size, str);
 
 		} while (p2);
 

scripts/kconfig/Makefile

@@ -22,24 +22,25 @@ oldconfig: $(obj)/conf
 silentoldconfig: $(obj)/conf
 	$< -s arch/$(ARCH)/Kconfig
 
+# Create new linux.po file
+# Adjust charset to UTF-8 in .po file to accept UTF-8 in Kconfig files
+# The symlink is used to repair a deficiency in arch/um
 update-po-config: $(obj)/kxgettext
 	xgettext --default-domain=linux                  \
 	    --add-comments --keyword=_ --keyword=N_      \
+	    --from-code=UTF-8                            \
 	    --files-from=scripts/kconfig/POTFILES.in     \
-          --output scripts/kconfig/config.pot
-	$(Q)ln -fs Kconfig_i386 arch/um/Kconfig_arch
-	$(Q)for i in `ls arch/`; \
+	    --output $(obj)/config.pot
+	$(Q)sed -i s/CHARSET/UTF-8/ $(obj)/config.pot
+	$(Q)ln -fs Kconfig.i386 arch/um/Kconfig.arch
+	(for i in `ls arch/`;                            \
 	do                                               \
-	  scripts/kconfig/kxgettext arch/$$i/Kconfig \
-	    | msguniq -o scripts/kconfig/linux_$${i}.pot; \
-	done
-	$(Q)msgcat scripts/kconfig/config.pot \
-	  `find scripts/kconfig/ -type f -name linux_*.pot` \
-	  --output scripts/kconfig/linux_raw.pot
-	$(Q)msguniq --sort-by-file scripts/kconfig/linux_raw.pot \
-	    --output scripts/kconfig/linux.pot
-	$(Q)rm -f arch/um/Kconfig_arch
-	$(Q)rm -f scripts/kconfig/linux_*.pot scripts/kconfig/config.pot
+	    $(obj)/kxgettext arch/$$i/Kconfig;           \
+	done ) >> $(obj)/config.pot
+	msguniq --sort-by-file --to-code=UTF-8 $(obj)/config.pot \
+	    --output $(obj)/linux.pot
+	$(Q)rm -f arch/um/Kconfig.arch
+	$(Q)rm -f $(obj)/config.pot
 
 PHONY += randconfig allyesconfig allnoconfig allmodconfig defconfig
 

scripts/kconfig/confdata.c

@@ -341,27 +341,42 @@ int conf_read(const char *name)
 		conf_unsaved++;
 		/* maybe print value in verbose mode... */
 	sym_ok:
+		if (!sym_is_choice(sym))
+			continue;
+		/* The choice symbol only has a set value (and thus is not new)
+		 * if all its visible childs have values.
+		 */
+		prop = sym_get_choice_prop(sym);
+		flags = sym->flags;
+		for (e = prop->expr; e; e = e->left.expr)
+			if (e->right.sym->visible != no)
+				flags &= e->right.sym->flags;
+		sym->flags &= flags | ~SYMBOL_DEF_USER;
+	}
+
+	for_all_symbols(i, sym) {
 		if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
-			if (sym->visible == no)
+			/* Reset values of generates values, so they'll appear
+			 * as new, if they should become visible, but that
+			 * doesn't quite work if the Kconfig and the saved
+			 * configuration disagree.
+			 */
+			if (sym->visible == no && !conf_unsaved)
 				sym->flags &= ~SYMBOL_DEF_USER;
 			switch (sym->type) {
 			case S_STRING:
 			case S_INT:
 			case S_HEX:
-				if (!sym_string_within_range(sym, sym->def[S_DEF_USER].val))
+				/* Reset a string value if it's out of range */
+				if (sym_string_within_range(sym, sym->def[S_DEF_USER].val))
+					break;
 				sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER);
+				conf_unsaved++;
+				break;
 			default:
 				break;
 			}
 		}
-		if (!sym_is_choice(sym))
-			continue;
-		prop = sym_get_choice_prop(sym);
-		flags = sym->flags;
-		for (e = prop->expr; e; e = e->left.expr)
-			if (e->right.sym->visible != no)
-				flags &= e->right.sym->flags;
-		sym->flags &= flags | ~SYMBOL_DEF_USER;
 	}
 
 	sym_add_change_count(conf_warnings || conf_unsaved);

scripts/kconfig/kxgettext.c

@@ -212,6 +212,8 @@ void menu__xgettext(void)
 	struct message *m = message__list;
 
 	while (m != NULL) {
+		/* skip empty lines ("") */
+		if (strlen(m->msg) > sizeof("\"\""))
 			message__print_gettext_msgid_msgstr(m);
 		m = m->next;
 	}

scripts/kconfig/lxdialog/check-lxdialog.sh

@@ -51,7 +51,7 @@ usage() {
 	printf "Usage: $0 [-check compiler options|-header|-library]\n"
 }
 
-if [ $# == 0 ]; then
+if [ $# -eq 0 ]; then
 	usage
 	exit 1
 fi

scripts/kconfig/mconf.c

@@ -419,11 +419,13 @@ static void search_conf(void)
 {
 	struct symbol **sym_arr;
 	struct gstr res;
+	char *dialog_input;
 	int dres;
 again:
 	dialog_clear();
 	dres = dialog_inputbox(_("Search Configuration Parameter"),
-			      _("Enter CONFIG_ (sub)string to search for (omit CONFIG_)"),
+			      _("Enter CONFIG_ (sub)string to search for "
+				"(with or without \"CONFIG\")"),
 			      10, 75, "");
 	switch (dres) {
 	case 0:
@@ -435,7 +437,12 @@ static void search_conf(void)
 		return;
 	}
 
-	sym_arr = sym_re_search(dialog_input_result);
+	/* strip CONFIG_ if necessary */
+	dialog_input = dialog_input_result;
+	if (strncasecmp(dialog_input_result, "CONFIG_", 7) == 0)
+		dialog_input += 7;
+
+	sym_arr = sym_re_search(dialog_input);
 	res = get_relations_str(sym_arr);
 	free(sym_arr);
 	show_textbox(_("Search Results"), str_get(&res), 0, 0);

scripts/mod/modpost.c

@@ -75,7 +75,8 @@ static int is_vmlinux(const char *modname)
 	else
 		myname = modname;
 
-	return strcmp(myname, "vmlinux") == 0;
+	return (strcmp(myname, "vmlinux") == 0) ||
+	       (strcmp(myname, "vmlinux.o") == 0);
 }
 
 void *do_nofail(void *ptr, const char *expr)
@@ -374,6 +375,7 @@ static int parse_elf(struct elf_info *info, const char *filename)
 	hdr->e_shstrndx = TO_NATIVE(hdr->e_shstrndx);
 	hdr->e_shnum    = TO_NATIVE(hdr->e_shnum);
 	hdr->e_machine  = TO_NATIVE(hdr->e_machine);
+	hdr->e_type     = TO_NATIVE(hdr->e_type);
 	sechdrs = (void *)hdr + hdr->e_shoff;
 	info->sechdrs = sechdrs;
 
@@ -384,6 +386,8 @@ static int parse_elf(struct elf_info *info, const char *filename)
 		sechdrs[i].sh_size   = TO_NATIVE(sechdrs[i].sh_size);
 		sechdrs[i].sh_link   = TO_NATIVE(sechdrs[i].sh_link);
 		sechdrs[i].sh_name   = TO_NATIVE(sechdrs[i].sh_name);
+		sechdrs[i].sh_info   = TO_NATIVE(sechdrs[i].sh_info);
+		sechdrs[i].sh_addr   = TO_NATIVE(sechdrs[i].sh_addr);
 	}
 	/* Find symbol table. */
 	for (i = 1; i < hdr->e_shnum; i++) {
@@ -605,18 +609,14 @@ static int strrcmp(const char *s, const char *sub)
  *   warn here.
  *   the pattern is identified by:
  *   tosec   = .init.text | .exit.text | .init.data
- *   fromsec = .data
- *   atsym = *driver, *_template, *_sht, *_ops, *_probe, *probe_one, *_console
+ *   fromsec = .data | .data.rel | .data.rel.*
+ *   atsym = *driver, *_template, *_sht, *_ops, *_probe, *probe_one, *_console, *_timer
  *
  * Pattern 3:
- *   Whitelist all references from .pci_fixup* section to .init.text
- *   This is part of the PCI init when built-in
- *
- * Pattern 4:
  *   Whitelist all refereces from .text.head to .init.data
  *   Whitelist all refereces from .text.head to .init.text
  *
- * Pattern 5:
+ * Pattern 4:
  *   Some symbols belong to init section but still it is ok to reference
  *   these from non-init sections as these symbols don't have any memory
  *   allocated for them and symbol address and value are same. So even
@@ -625,26 +625,6 @@ static int strrcmp(const char *s, const char *sub)
  *   This pattern is identified by
  *   refsymname = __init_begin, _sinittext, _einittext
  *
- * Pattern 7:
- *  Logos used in drivers/video/logo reside in __initdata but the
- *  funtion that references them are EXPORT_SYMBOL() so cannot be
- *  marker __init. So we whitelist them here.
- *  The pattern is:
- *  tosec      = .init.data
- *  fromsec    = .text*
- *  refsymname = logo_
- *
- * Pattern 8:
- *  Symbols contained in .paravirtprobe may safely reference .init.text.
- *  The pattern is:
- *  tosec   = .init.text
- *  fromsec  = .paravirtprobe
- *
- * Pattern 10:
- *  ia64 has machvec table for each platform and
- *  powerpc has a machine desc table for each platform.
- *  It is mixture of function pointers of .init.text and .text.
- *  fromsec  = .machvec | .machine.desc
  **/
 static int secref_whitelist(const char *modname, const char *tosec,
 			    const char *fromsec, const char *atsym,
@@ -655,12 +635,12 @@ static int secref_whitelist(const char *modname, const char *tosec,
 	const char *pat2sym[] = {
 		"driver",
 		"_template", /* scsi uses *_template a lot */
+		"_timer",    /* arm uses ops structures named _timer a lot */
 		"_sht",      /* scsi also used *_sht to some extent */
 		"_ops",
 		"_probe",
 		"_probe_one",
 		"_console",
-		"apic_es7000",
 		NULL
 	};
 
@@ -692,7 +672,9 @@ static int secref_whitelist(const char *modname, const char *tosec,
 	    (strcmp(tosec, ".exit.text") != 0) &&
 	    (strcmp(tosec, ".init.data") != 0))
 		f2 = 0;
-	if (strcmp(fromsec, ".data") != 0)
+	if ((strcmp(fromsec, ".data") != 0) &&
+	    (strcmp(fromsec, ".data.rel") != 0) &&
+	    (strncmp(fromsec, ".data.rel.", strlen(".data.rel.")) != 0))
 		f2 = 0;
 
 	for (s = pat2sym; *s; s++)
@@ -702,37 +684,16 @@ static int secref_whitelist(const char *modname, const char *tosec,
 		return 1;
 
 	/* Check for pattern 3 */
-	if ((strncmp(fromsec, ".pci_fixup", strlen(".pci_fixup")) == 0) &&
-	    (strcmp(tosec, ".init.text") == 0))
-	return 1;
-
-	/* Check for pattern 4 */
 	if ((strcmp(fromsec, ".text.head") == 0) &&
 		((strcmp(tosec, ".init.data") == 0) ||
 		(strcmp(tosec, ".init.text") == 0)))
 	return 1;
 
-	/* Check for pattern 5 */
+	/* Check for pattern 4 */
 	for (s = pat3refsym; *s; s++)
 		if (strcmp(refsymname, *s) == 0)
 			return 1;
 
-	/* Check for pattern 7 */
-	if ((strcmp(tosec, ".init.data") == 0) &&
-	    (strncmp(fromsec, ".text", strlen(".text")) == 0) &&
-	    (strncmp(refsymname, "logo_", strlen("logo_")) == 0))
-		return 1;
-
-	/* Check for pattern 8 */
-	if ((strcmp(tosec, ".init.text") == 0) &&
-	    (strcmp(fromsec, ".paravirtprobe") == 0))
-		return 1;
-
-	/* Check for pattern 10 */
-	if ((strcmp(fromsec, ".machvec") == 0) ||
-	    (strcmp(fromsec, ".machine.desc") == 0))
-		return 1;
-
 	return 0;
 }
 
@@ -753,6 +714,8 @@ static Elf_Sym *find_elf_symbol(struct elf_info *elf, Elf_Addr addr,
 	for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {
 		if (sym->st_shndx != relsym->st_shndx)
 			continue;
+		if (ELF_ST_TYPE(sym->st_info) == STT_SECTION)
+			continue;
 		if (sym->st_value == addr)
 			return sym;
 	}
@@ -864,11 +827,6 @@ static void warn_sec_mismatch(const char *modname, const char *fromsec,
 			     elf->strtab + before->st_name, refsymname))
 		return;
 
-	/* fromsec whitelist - without a valid 'before'
-	 * powerpc has a GOT table in .got2 section */
-	if (strcmp(fromsec, ".got2") == 0)
-		return;
-
 	if (before && after) {
 		warn("%s(%s+0x%llx): Section mismatch: reference to %s:%s "
 		     "(between '%s' and '%s')\n",
@@ -895,6 +853,78 @@ static void warn_sec_mismatch(const char *modname, const char *fromsec,
 	}
 }
 
+static unsigned int *reloc_location(struct elf_info *elf,
+					   int rsection, Elf_Rela *r)
+{
+	Elf_Shdr *sechdrs = elf->sechdrs;
+	int section = sechdrs[rsection].sh_info;
+
+	return (void *)elf->hdr + sechdrs[section].sh_offset +
+		(r->r_offset - sechdrs[section].sh_addr);
+}
+
+static int addend_386_rel(struct elf_info *elf, int rsection, Elf_Rela *r)
+{
+	unsigned int r_typ = ELF_R_TYPE(r->r_info);
+	unsigned int *location = reloc_location(elf, rsection, r);
+
+	switch (r_typ) {
+	case R_386_32:
+		r->r_addend = TO_NATIVE(*location);
+		break;
+	case R_386_PC32:
+		r->r_addend = TO_NATIVE(*location) + 4;
+		/* For CONFIG_RELOCATABLE=y */
+		if (elf->hdr->e_type == ET_EXEC)
+			r->r_addend += r->r_offset;
+		break;
+	}
+	return 0;
+}
+
+static int addend_arm_rel(struct elf_info *elf, int rsection, Elf_Rela *r)
+{
+	unsigned int r_typ = ELF_R_TYPE(r->r_info);
+
+	switch (r_typ) {
+	case R_ARM_ABS32:
+		/* From ARM ABI: (S + A) | T */
+		r->r_addend = (int)(long)(elf->symtab_start + ELF_R_SYM(r->r_info));
+		break;
+	case R_ARM_PC24:
+		/* From ARM ABI: ((S + A) | T) - P */
+		r->r_addend = (int)(long)(elf->hdr + elf->sechdrs[rsection].sh_offset +
+		                          (r->r_offset - elf->sechdrs[rsection].sh_addr));
+		break;
+	default:
+		return 1;
+	}
+	return 0;
+}
+
+static int addend_mips_rel(struct elf_info *elf, int rsection, Elf_Rela *r)
+{
+	unsigned int r_typ = ELF_R_TYPE(r->r_info);
+	unsigned int *location = reloc_location(elf, rsection, r);
+	unsigned int inst;
+
+	if (r_typ == R_MIPS_HI16)
+		return 1;	/* skip this */
+	inst = TO_NATIVE(*location);
+	switch (r_typ) {
+	case R_MIPS_LO16:
+		r->r_addend = inst & 0xffff;
+		break;
+	case R_MIPS_26:
+		r->r_addend = (inst & 0x03ffffff) << 2;
+		break;
+	case R_MIPS_32:
+		r->r_addend = inst;
+		break;
+	}
+	return 0;
+}
+
 /**
  * A module includes a number of sections that are discarded
  * either when loaded or when used as built-in.
@@ -938,8 +968,11 @@ static void check_sec_ref(struct module *mod, const char *modname,
 				r.r_offset = TO_NATIVE(rela->r_offset);
 #if KERNEL_ELFCLASS == ELFCLASS64
 				if (hdr->e_machine == EM_MIPS) {
+					unsigned int r_typ;
 					r_sym = ELF64_MIPS_R_SYM(rela->r_info);
 					r_sym = TO_NATIVE(r_sym);
+					r_typ = ELF64_MIPS_R_TYPE(rela->r_info);
+					r.r_info = ELF64_R_INFO(r_sym, r_typ);
 				} else {
 					r.r_info = TO_NATIVE(rela->r_info);
 					r_sym = ELF_R_SYM(r.r_info);
@@ -972,8 +1005,11 @@ static void check_sec_ref(struct module *mod, const char *modname,
 				r.r_offset = TO_NATIVE(rel->r_offset);
 #if KERNEL_ELFCLASS == ELFCLASS64
 				if (hdr->e_machine == EM_MIPS) {
+					unsigned int r_typ;
 					r_sym = ELF64_MIPS_R_SYM(rel->r_info);
 					r_sym = TO_NATIVE(r_sym);
+					r_typ = ELF64_MIPS_R_TYPE(rel->r_info);
+					r.r_info = ELF64_R_INFO(r_sym, r_typ);
 				} else {
 					r.r_info = TO_NATIVE(rel->r_info);
 					r_sym = ELF_R_SYM(r.r_info);
@@ -983,6 +1019,20 @@ static void check_sec_ref(struct module *mod, const char *modname,
 				r_sym = ELF_R_SYM(r.r_info);
 #endif
 				r.r_addend = 0;
+				switch (hdr->e_machine) {
+				case EM_386:
+					if (addend_386_rel(elf, i, &r))
+						continue;
+					break;
+				case EM_ARM:
+					if(addend_arm_rel(elf, i, &r))
+						continue;
+					break;
+				case EM_MIPS:
+					if (addend_mips_rel(elf, i, &r))
+						continue;
+					break;
+				}
 				sym = elf->symtab_start + r_sym;
 				/* Skip special sections */
 				if (sym->st_shndx >= SHN_LORESERVE)
@@ -998,6 +1048,63 @@ static void check_sec_ref(struct module *mod, const char *modname,
 	}
 }
 
+/*
+ * Identify sections from which references to either a
+ * .init or 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.
+ * [.rodata] like for .init.text we ignore .rodata references -same reason
+ */
+static int initexit_section_ref_ok(const char *name)
+{
+	const char **s;
+	/* Absolute section names */
+	const char *namelist1[] = {
+		"__bug_table",		/* used by powerpc for BUG() */
+		"__ex_table",
+		".altinstructions",
+		".cranges",		/* used by sh64 */
+		".fixup",
+		".machvec",		/* ia64 + powerpc uses these */
+		".machine.desc",
+		".opd",			/* See comment [OPD] */
+		".parainstructions",
+		".pdr",
+		".plt",			/* seen on ARCH=um build on x86_64. Harmless */
+		".smp_locks",
+		".stab",
+		NULL
+	};
+	/* Start of section names */
+	const char *namelist2[] = {
+		".debug",
+		".eh_frame",
+		".note",		/* ignore ELF notes - may contain anything */
+		".got",			/* powerpc - global offset table */
+		".toc",			/* powerpc - table of contents */
+		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;
+}
+
 /**
  * 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
@@ -1014,7 +1121,7 @@ static int init_section(const char *name)
 	return 0;
 }
 
-/**
+/*
  * Identify sections from which references to a .init section is OK.
  *
  * Unfortunately references to read only data that referenced .init
@@ -1028,48 +1135,31 @@ static int init_section(const char *name)
  *
  * 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",
-		".data.rel.ro", /* used by parisc64 */
-		".parainstructions",
-		".text.lock",
-		"__bug_table", /* used by powerpc for BUG() */
-		".pci_fixup_header",
-		".pci_fixup_final",
-		".pdr",
-		"__param",
-		"__ex_table",
-		".fixup",
-		".smp_locks",
-		".plt",  /* seen on ARCH=um build on x86_64. Harmless */
+		"__dbe_table",		/* MIPS generate these */
 		"__ftr_fixup",		/* powerpc cpu feature fixup */
 		"__fw_ftr_fixup",	/* powerpc firmware feature fixup */
-		".cranges",	/* used by sh64 */
+		"__param",
+		".data.rel.ro",		/* used by parisc64 */
+		".init",
+		".text.lock",
 		NULL
 	};
 	/* Start of section names */
 	const char *namelist2[] = {
 		".init.",
-		".altinstructions",
-		".eh_frame",
-		".debug",
-		".parainstructions",
+		".pci_fixup",
 		".rodata",
 		NULL
 	};
-	/* part of section name */
-	const char *namelist3 [] = {
-		".unwind",  /* sample: IA_64.unwind.init.text */
-		NULL
-	};
+
+	if (initexit_section_ref_ok(name))
+		return 1;
 
 	for (s = namelist1; *s; s++)
 		if (strcmp(*s, name) == 0)
@@ -1077,9 +1167,10 @@ static int init_section_ref_ok(const char *name)
 	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;
+
+	/* If section name ends with ".init" we allow references
+	 * as is the case with .initcallN.init, .early_param.init, .taglist.init etc
+	 */
 	if (strrcmp(name, ".init") == 0)
 		return 1;
 	return 0;
@@ -1104,58 +1195,25 @@ static int exit_section(const char *name)
 
 /*
  * 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.
- * [.rodata] like for .init.text we ignore .rodata references -same reason
- **/
+ */
 static int exit_section_ref_ok(const char *name)
 {
 	const char **s;
 	/* Absolute section names */
 	const char *namelist1[] = {
-		".exit.text",
 		".exit.data",
-		".init.text",
-		".rodata",
-		".opd", /* See comment [OPD] */
-		".toc1",  /* used by ppc64 */
-		".altinstructions",
-		".pdr",
-		"__bug_table", /* used by powerpc for BUG() */
+		".exit.text",
 		".exitcall.exit",
-		".eh_frame",
-		".parainstructions",
-		".stab",
-		"__ex_table",
-		".fixup",
-		".smp_locks",
-		".plt",  /* seen on ARCH=um build on x86_64. Harmless */
-		".cranges",	/* used by sh64 */
-		NULL
-	};
-	/* Start of section names */
-	const char *namelist2[] = {
-		".debug",
-		NULL
-	};
-	/* part of section name */
-	const char *namelist3 [] = {
-		".unwind",  /* Sample: IA_64.unwind.exit.text */
+		".rodata",
 		NULL
 	};
 
+	if (initexit_section_ref_ok(name))
+		return 1;
+
 	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;
 }
 

scripts/mod/modpost.h

@@ -60,6 +60,9 @@ typedef union
 #define ELF64_MIPS_R_SYM(i) \
   ((__extension__ (_Elf64_Mips_R_Info_union)(i)).r_info_fields.r_sym)
 
+#define ELF64_MIPS_R_TYPE(i) \
+  ((__extension__ (_Elf64_Mips_R_Info_union)(i)).r_info_fields.r_type1)
+
 #if KERNEL_ELFDATA != HOST_ELFDATA
 
 static inline void __endian(const void *src, void *dest, unsigned int size)

usr/gen_init_cpio.c

@@ -498,7 +498,9 @@ int main (int argc, char *argv[])
 		exit(1);
 	}
 
-	if (! (cpio_list = fopen(argv[1], "r"))) {
+	if (!strcmp(argv[1], "-"))
+		cpio_list = stdin;
+	else if (! (cpio_list = fopen(argv[1], "r"))) {
 		fprintf(stderr, "ERROR: unable to open '%s': %s\n\n",
 			argv[1], strerror(errno));
 		usage(argv[0]);