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-rw-r--r--scripts/Makefile.build13
-rw-r--r--scripts/Makefile.modpost2
-rw-r--r--scripts/basic/.gitignore2
-rw-r--r--scripts/bootgraph.pl39
-rwxr-xr-xscripts/checkpatch.pl2
-rwxr-xr-xscripts/checkstack.pl4
-rwxr-xr-xscripts/checksyscalls.sh6
-rw-r--r--scripts/headers_check.pl10
-rw-r--r--scripts/headers_install.pl17
-rw-r--r--scripts/kconfig/Makefile4
-rw-r--r--scripts/kconfig/confdata.c3
-rwxr-xr-xscripts/kernel-doc6
-rw-r--r--scripts/mod/sumversion.c12
-rw-r--r--scripts/package/builddeb24
-rwxr-xr-xscripts/package/mkspec5
-rwxr-xr-xscripts/recordmcount.pl415
-rwxr-xr-xscripts/setlocalversion6
17 files changed, 524 insertions, 46 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 277cfe0b710..468fbc9016c 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -198,10 +198,23 @@ cmd_modversions = \
fi;
endif
+ifdef CONFIG_64BIT
+arch_bits = 64
+else
+arch_bits = 32
+endif
+
+ifdef CONFIG_FTRACE_MCOUNT_RECORD
+cmd_record_mcount = perl $(srctree)/scripts/recordmcount.pl \
+ "$(ARCH)" "$(arch_bits)" "$(OBJDUMP)" "$(OBJCOPY)" "$(CC)" "$(LD)" \
+ "$(NM)" "$(RM)" "$(MV)" "$(@)";
+endif
+
define rule_cc_o_c
$(call echo-cmd,checksrc) $(cmd_checksrc) \
$(call echo-cmd,cc_o_c) $(cmd_cc_o_c); \
$(cmd_modversions) \
+ $(cmd_record_mcount) \
scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,cc_o_c)' > \
$(dot-target).tmp; \
rm -f $(depfile); \
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 9ee9783aea5..f4053dc7b5d 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -82,7 +82,7 @@ modpost = scripts/mod/modpost \
$(if $(CONFIG_MODULE_SRCVERSION_ALL),-a,) \
$(if $(KBUILD_EXTMOD),-i,-o) $(kernelsymfile) \
$(if $(KBUILD_EXTMOD),-I $(modulesymfile)) \
- $(if $(KBUILD_EXTRA_SYMBOLS), $(patsubst %, -e %,$(EXTRA_SYMBOLS))) \
+ $(if $(KBUILD_EXTRA_SYMBOLS), $(patsubst %, -e %,$(KBUILD_EXTRA_SYMBOLS))) \
$(if $(KBUILD_EXTMOD),-o $(modulesymfile)) \
$(if $(CONFIG_DEBUG_SECTION_MISMATCH),,-S) \
$(if $(CONFIG_MARKERS),-K $(kernelmarkersfile)) \
diff --git a/scripts/basic/.gitignore b/scripts/basic/.gitignore
index 7304e19782c..bf8b199ec59 100644
--- a/scripts/basic/.gitignore
+++ b/scripts/basic/.gitignore
@@ -1,3 +1,3 @@
+hash
fixdep
-split-include
docproc
diff --git a/scripts/bootgraph.pl b/scripts/bootgraph.pl
index 2243353fe55..d2c61efc216 100644
--- a/scripts/bootgraph.pl
+++ b/scripts/bootgraph.pl
@@ -37,13 +37,16 @@
# dmesg | perl scripts/bootgraph.pl > output.svg
#
-my @rows;
-my %start, %end, %row;
+use strict;
+
+my %start;
+my %end;
my $done = 0;
-my $rowcount = 0;
my $maxtime = 0;
my $firsttime = 100;
my $count = 0;
+my %pids;
+
while (<>) {
my $line = $_;
if ($line =~ /([0-9\.]+)\] calling ([a-zA-Z0-9\_]+)\+/) {
@@ -54,14 +57,8 @@ while (<>) {
$firsttime = $1;
}
}
- $row{$func} = 1;
if ($line =~ /\@ ([0-9]+)/) {
- my $pid = $1;
- if (!defined($rows[$pid])) {
- $rowcount = $rowcount + 1;
- $rows[$pid] = $rowcount;
- }
- $row{$func} = $rows[$pid];
+ $pids{$func} = $1;
}
$count = $count + 1;
}
@@ -109,17 +106,27 @@ $styles[11] = "fill:rgb(128,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(
my $mult = 950.0 / ($maxtime - $firsttime);
my $threshold = ($maxtime - $firsttime) / 60.0;
my $stylecounter = 0;
-while (($key,$value) = each %start) {
+my %rows;
+my $rowscount = 1;
+my @initcalls = sort { $start{$a} <=> $start{$b} } keys(%start);
+my $key;
+foreach $key (@initcalls) {
my $duration = $end{$key} - $start{$key};
if ($duration >= $threshold) {
- my $s, $s2, $e, $y;
- $s = ($value - $firsttime) * $mult;
+ my ($s, $s2, $e, $w, $y, $y2, $style);
+ my $pid = $pids{$key};
+
+ if (!defined($rows{$pid})) {
+ $rows{$pid} = $rowscount;
+ $rowscount = $rowscount + 1;
+ }
+ $s = ($start{$key} - $firsttime) * $mult;
$s2 = $s + 6;
$e = ($end{$key} - $firsttime) * $mult;
$w = $e - $s;
- $y = $row{$key} * 150;
+ $y = $rows{$pid} * 150;
$y2 = $y + 4;
$style = $styles[$stylecounter];
@@ -138,9 +145,9 @@ while (($key,$value) = each %start) {
my $time = $firsttime;
my $step = ($maxtime - $firsttime) / 15;
while ($time < $maxtime) {
- my $s2 = ($time - $firsttime) * $mult;
+ my $s3 = ($time - $firsttime) * $mult;
my $tm = int($time * 100) / 100.0;
- print "<text transform=\"translate($s2,89) rotate(90)\">$tm</text>\n";
+ print "<text transform=\"translate($s3,89) rotate(90)\">$tm</text>\n";
$time = $time + $step;
}
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index e30bac141b2..f88bb3e21cd 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1,5 +1,5 @@
#!/usr/bin/perl -w
-# (c) 2001, Dave Jones. <davej@codemonkey.org.uk> (the file handling bit)
+# (c) 2001, Dave Jones. <davej@redhat.com> (the file handling bit)
# (c) 2005, Joel Schopp <jschopp@austin.ibm.com> (the ugly bit)
# (c) 2007, Andy Whitcroft <apw@uk.ibm.com> (new conditions, test suite, etc)
# Licensed under the terms of the GNU GPL License version 2
diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl
index f7e8e93ff30..14ee68e991d 100755
--- a/scripts/checkstack.pl
+++ b/scripts/checkstack.pl
@@ -14,6 +14,7 @@
# M68k port by Geert Uytterhoeven and Andreas Schwab
# AVR32 port by Haavard Skinnemoen <hskinnemoen@atmel.com>
# PARISC port by Kyle McMartin <kyle@parisc-linux.org>
+# sparc port by Martin Habets <errandir_news@mph.eclipse.co.uk>
#
# Usage:
# objdump -d vmlinux | scripts/checkstack.pl [arch]
@@ -94,6 +95,9 @@ my (@stack, $re, $dre, $x, $xs);
} elsif ($arch =~ /^blackfin$/) {
# 0: 00 e8 38 01 LINK 0x4e0;
$re = qr/.*[[:space:]]LINK[[:space:]]*(0x$x{1,8})/o;
+ } elsif ($arch eq 'sparc' || $arch eq 'sparc64') {
+ # f0019d10: 9d e3 bf 90 save %sp, -112, %sp
+ $re = qr/.*save.*%sp, -(([0-9]{2}|[3-9])[0-9]{2}), %sp/o;
} else {
print("wrong or unknown architecture \"$arch\"\n");
exit
diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh
index 366f8c7f62b..60d00d1c4ee 100755
--- a/scripts/checksyscalls.sh
+++ b/scripts/checksyscalls.sh
@@ -113,11 +113,11 @@ EOF
}
syscall_list() {
-sed -n -e '/^\#define/ { s/[^_]*__NR_\([^[:space:]]*\).*/\
+sed -n -e '/^\#define/ s/[^_]*__NR_\([^[:space:]]*\).*/\
\#if !defined \(__NR_\1\) \&\& !defined \(__IGNORE_\1\)\
\#warning syscall \1 not implemented\
-\#endif/p }' $1
+\#endif/p' $1
}
-(ignore_list && syscall_list ${srctree}/include/asm-x86/unistd_32.h) | \
+(ignore_list && syscall_list ${srctree}/arch/x86/include/asm/unistd_32.h) | \
$* -E -x c - > /dev/null
diff --git a/scripts/headers_check.pl b/scripts/headers_check.pl
index 15d53a6b1a1..488a3b1f760 100644
--- a/scripts/headers_check.pl
+++ b/scripts/headers_check.pl
@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/perl -w
#
# headers_check.pl execute a number of trivial consistency checks
#
@@ -17,7 +17,6 @@
# 2) TODO: check for leaked CONFIG_ symbols
use strict;
-use warnings;
my ($dir, $arch, @files) = @ARGV;
@@ -27,14 +26,15 @@ my $lineno = 0;
my $filename;
foreach my $file (@files) {
+ local *FH;
$filename = $file;
- open(my $fh, '<', "$filename") or die "$filename: $!\n";
+ open(FH, "<$filename") or die "$filename: $!\n";
$lineno = 0;
- while ($line = <$fh>) {
+ while ($line = <FH>) {
$lineno++;
check_include();
}
- close $fh;
+ close FH;
}
exit $ret;
diff --git a/scripts/headers_install.pl b/scripts/headers_install.pl
index 68591cd0873..7d2b4146e02 100644
--- a/scripts/headers_install.pl
+++ b/scripts/headers_install.pl
@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/perl -w
#
# headers_install prepare the listed header files for use in
# user space and copy the files to their destination.
@@ -17,28 +17,29 @@
# 3) Drop all sections defined out by __KERNEL__ (using unifdef)
use strict;
-use warnings;
my ($readdir, $installdir, $arch, @files) = @ARGV;
my $unifdef = "scripts/unifdef -U__KERNEL__";
foreach my $file (@files) {
+ local *INFILE;
+ local *OUTFILE;
my $tmpfile = "$installdir/$file.tmp";
- open(my $infile, '<', "$readdir/$file")
+ open(INFILE, "<$readdir/$file")
or die "$readdir/$file: $!\n";
- open(my $outfile, '>', "$tmpfile") or die "$tmpfile: $!\n";
- while (my $line = <$infile>) {
+ open(OUTFILE, ">$tmpfile") or die "$tmpfile: $!\n";
+ while (my $line = <INFILE>) {
$line =~ s/([\s(])__user\s/$1/g;
$line =~ s/([\s(])__force\s/$1/g;
$line =~ s/([\s(])__iomem\s/$1/g;
$line =~ s/\s__attribute_const__\s/ /g;
$line =~ s/\s__attribute_const__$//g;
$line =~ s/^#include <linux\/compiler.h>//;
- printf $outfile "%s", $line;
+ printf OUTFILE "%s", $line;
}
- close $outfile;
- close $infile;
+ close OUTFILE;
+ close INFILE;
system $unifdef . " $tmpfile > $installdir/$file";
unlink $tmpfile;
}
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index fa1a7d56590..fa8c2dd9c98 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -4,7 +4,11 @@
PHONY += oldconfig xconfig gconfig menuconfig config silentoldconfig update-po-config
+ifdef KBUILD_KCONFIG
+Kconfig := $(KBUILD_KCONFIG)
+else
Kconfig := arch/$(SRCARCH)/Kconfig
+endif
xconfig: $(obj)/qconf
$< $(Kconfig)
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index b91cf241a53..830d9eae11f 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -852,8 +852,7 @@ void conf_set_all_new_symbols(enum conf_def_mode mode)
}
- if (modules_sym)
- sym_calc_value(modules_sym);
+ sym_clear_all_valid();
if (mode != def_random)
return;
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 44ee94d2ab7..a53e2fc8dfb 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -1648,7 +1648,7 @@ sub dump_function($$) {
$prototype =~ s/^noinline +//;
$prototype =~ s/__devinit +//;
$prototype =~ s/__init +//;
- $prototype =~ s/^#define\s+//; #ak added
+ $prototype =~ s/^#\s*define\s+//; #ak added
$prototype =~ s/__attribute__\s*\(\([a-z,]*\)\)//;
# Yes, this truly is vile. We are looking for:
@@ -1764,13 +1764,13 @@ sub process_state3_function($$) {
$x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
- if ($x =~ m#\s*/\*\s+MACDOC\s*#io || ($x =~ /^#/ && $x !~ /^#define/)) {
+ if ($x =~ m#\s*/\*\s+MACDOC\s*#io || ($x =~ /^#/ && $x !~ /^#\s*define/)) {
# do nothing
}
elsif ($x =~ /([^\{]*)/) {
$prototype .= $1;
}
- if (($x =~ /\{/) || ($x =~ /\#define/) || ($x =~ /;/)) {
+ if (($x =~ /\{/) || ($x =~ /\#\s*define/) || ($x =~ /;/)) {
$prototype =~ s@/\*.*?\*/@@gos; # strip comments.
$prototype =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
$prototype =~ s@^\s+@@gos; # strip leading spaces
diff --git a/scripts/mod/sumversion.c b/scripts/mod/sumversion.c
index d9cc6901d68..aadc5223dcd 100644
--- a/scripts/mod/sumversion.c
+++ b/scripts/mod/sumversion.c
@@ -290,6 +290,15 @@ static int parse_file(const char *fname, struct md4_ctx *md)
release_file(file, len);
return 1;
}
+/* Check whether the file is a static library or not */
+static int is_static_library(const char *objfile)
+{
+ int len = strlen(objfile);
+ if (objfile[len - 2] == '.' && objfile[len - 1] == 'a')
+ return 1;
+ else
+ return 0;
+}
/* We have dir/file.o. Open dir/.file.o.cmd, look for deps_ line to
* figure out source file. */
@@ -420,7 +429,8 @@ void get_src_version(const char *modname, char sum[], unsigned sumlen)
while ((fname = strsep(&sources, " ")) != NULL) {
if (!*fname)
continue;
- if (!parse_source_files(fname, &md))
+ if (!(is_static_library(fname)) &&
+ !parse_source_files(fname, &md))
goto release;
}
diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index ba6bf5d5abf..1264b8e2829 100644
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -15,15 +15,18 @@ set -e
version=$KERNELRELEASE
revision=`cat .version`
tmpdir="$objtree/debian/tmp"
+fwdir="$objtree/debian/fwtmp"
packagename=linux-$version
+fwpackagename=linux-firmware-image
if [ "$ARCH" == "um" ] ; then
packagename=user-mode-linux-$version
fi
# Setup the directory structure
-rm -rf "$tmpdir"
+rm -rf "$tmpdir" "$fwdir"
mkdir -p "$tmpdir/DEBIAN" "$tmpdir/lib" "$tmpdir/boot"
+mkdir -p "$fwdir/DEBIAN" "$fwdir/lib"
if [ "$ARCH" == "um" ] ; then
mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/share/doc/$packagename" "$tmpdir/usr/bin"
fi
@@ -107,6 +110,7 @@ Standards-Version: 3.6.1
Package: $packagename
Provides: kernel-image-$version, linux-image-$version
+Suggests: $fwpackagename
Architecture: any
Description: Linux kernel, version $version
This package contains the Linux kernel, modules and corresponding other
@@ -118,8 +122,24 @@ fi
chown -R root:root "$tmpdir"
chmod -R go-w "$tmpdir"
+# Do we have firmware? Move it out of the way and build it into a package.
+if [ -e "$tmpdir/lib/firmware" ]; then
+ mv "$tmpdir/lib/firmware" "$fwdir/lib/"
+
+ cat <<EOF >> debian/control
+
+Package: $fwpackagename
+Architecture: all
+Description: Linux kernel firmware, version $version
+ This package contains firmware from the Linux kernel, version $version
+EOF
+
+ dpkg-gencontrol -isp -p$fwpackagename -P"$fwdir"
+ dpkg --build "$fwdir" ..
+fi
+
# Perform the final magic
-dpkg-gencontrol -isp
+dpkg-gencontrol -isp -p$packagename
dpkg --build "$tmpdir" ..
exit 0
diff --git a/scripts/package/mkspec b/scripts/package/mkspec
index ffd61fe0c1a..2500886fb90 100755
--- a/scripts/package/mkspec
+++ b/scripts/package/mkspec
@@ -57,15 +57,17 @@ fi
echo "%build"
if ! $PREBUILT; then
-echo "make clean && make %{_smp_mflags}"
+echo "make clean && make %{?_smp_mflags}"
echo ""
fi
echo "%install"
echo "%ifarch ia64"
echo 'mkdir -p $RPM_BUILD_ROOT/boot/efi $RPM_BUILD_ROOT/lib/modules'
+echo 'mkdir -p $RPM_BUILD_ROOT/lib/firmware'
echo "%else"
echo 'mkdir -p $RPM_BUILD_ROOT/boot $RPM_BUILD_ROOT/lib/modules'
+echo 'mkdir -p $RPM_BUILD_ROOT/lib/firmware'
echo "%endif"
echo 'INSTALL_MOD_PATH=$RPM_BUILD_ROOT make %{_smp_mflags} modules_install'
@@ -92,5 +94,6 @@ echo "%files"
echo '%defattr (-, root, root)'
echo "%dir /lib/modules"
echo "/lib/modules/$KERNELRELEASE"
+echo "/lib/firmware"
echo "/boot/*"
echo ""
diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
new file mode 100755
index 00000000000..6b9fe3eb836
--- /dev/null
+++ b/scripts/recordmcount.pl
@@ -0,0 +1,415 @@
+#!/usr/bin/perl -w
+# (c) 2008, Steven Rostedt <srostedt@redhat.com>
+# Licensed under the terms of the GNU GPL License version 2
+#
+# recordmcount.pl - makes a section called __mcount_loc that holds
+# all the offsets to the calls to mcount.
+#
+#
+# What we want to end up with is a section in vmlinux called
+# __mcount_loc that contains a list of pointers to all the
+# call sites in the kernel that call mcount. Later on boot up, the kernel
+# will read this list, save the locations and turn them into nops.
+# When tracing or profiling is later enabled, these locations will then
+# be converted back to pointers to some function.
+#
+# This is no easy feat. This script is called just after the original
+# object is compiled and before it is linked.
+#
+# The references to the call sites are offsets from the section of text
+# that the call site is in. Hence, all functions in a section that
+# has a call site to mcount, will have the offset from the beginning of
+# the section and not the beginning of the function.
+#
+# The trick is to find a way to record the beginning of the section.
+# The way we do this is to look at the first function in the section
+# which will also be the location of that section after final link.
+# e.g.
+#
+# .section ".text.sched"
+# .globl my_func
+# my_func:
+# [...]
+# call mcount (offset: 0x5)
+# [...]
+# ret
+# other_func:
+# [...]
+# call mcount (offset: 0x1b)
+# [...]
+#
+# Both relocation offsets for the mcounts in the above example will be
+# offset from .text.sched. If we make another file called tmp.s with:
+#
+# .section __mcount_loc
+# .quad my_func + 0x5
+# .quad my_func + 0x1b
+#
+# We can then compile this tmp.s into tmp.o, and link it to the original
+# object.
+#
+# But this gets hard if my_func is not globl (a static function).
+# In such a case we have:
+#
+# .section ".text.sched"
+# my_func:
+# [...]
+# call mcount (offset: 0x5)
+# [...]
+# ret
+# .globl my_func
+# other_func:
+# [...]
+# call mcount (offset: 0x1b)
+# [...]
+#
+# If we make the tmp.s the same as above, when we link together with
+# the original object, we will end up with two symbols for my_func:
+# one local, one global. After final compile, we will end up with
+# an undefined reference to my_func.
+#
+# Since local objects can reference local variables, we need to find
+# a way to make tmp.o reference the local objects of the original object
+# file after it is linked together. To do this, we convert the my_func
+# into a global symbol before linking tmp.o. Then after we link tmp.o
+# we will only have a single symbol for my_func that is global.
+# We can convert my_func back into a local symbol and we are done.
+#
+# Here are the steps we take:
+#
+# 1) Record all the local symbols by using 'nm'
+# 2) Use objdump to find all the call site offsets and sections for
+# mcount.
+# 3) Compile the list into its own object.
+# 4) Do we have to deal with local functions? If not, go to step 8.
+# 5) Make an object that converts these local functions to global symbols
+# with objcopy.
+# 6) Link together this new object with the list object.
+# 7) Convert the local functions back to local symbols and rename
+# the result as the original object.
+# End.
+# 8) Link the object with the list object.
+# 9) Move the result back to the original object.
+# End.
+#
+
+use strict;
+
+my $P = $0;
+$P =~ s@.*/@@g;
+
+my $V = '0.1';
+
+if ($#ARGV < 6) {
+ print "usage: $P arch objdump objcopy cc ld nm rm mv inputfile\n";
+ print "version: $V\n";
+ exit(1);
+}
+
+my ($arch, $bits, $objdump, $objcopy, $cc,
+ $ld, $nm, $rm, $mv, $inputfile) = @ARGV;
+
+# Acceptable sections to record.
+my %text_sections = (
+ ".text" => 1,
+);
+
+$objdump = "objdump" if ((length $objdump) == 0);
+$objcopy = "objcopy" if ((length $objcopy) == 0);
+$cc = "gcc" if ((length $cc) == 0);
+$ld = "ld" if ((length $ld) == 0);
+$nm = "nm" if ((length $nm) == 0);
+$rm = "rm" if ((length $rm) == 0);
+$mv = "mv" if ((length $mv) == 0);
+
+#print STDERR "running: $P '$arch' '$objdump' '$objcopy' '$cc' '$ld' " .
+# "'$nm' '$rm' '$mv' '$inputfile'\n";
+
+my %locals; # List of local (static) functions
+my %weak; # List of weak functions
+my %convert; # List of local functions used that needs conversion
+
+my $type;
+my $section_regex; # Find the start of a section
+my $function_regex; # Find the name of a function
+ # (return offset and func name)
+my $mcount_regex; # Find the call site to mcount (return offset)
+
+if ($arch eq "x86") {
+ if ($bits == 64) {
+ $arch = "x86_64";
+ } else {
+ $arch = "i386";
+ }
+}
+
+if ($arch eq "x86_64") {
+ $section_regex = "Disassembly of section\\s+(\\S+):";
+ $function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
+ $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount([+-]0x[0-9a-zA-Z]+)?\$";
+ $type = ".quad";
+
+ # force flags for this arch
+ $ld .= " -m elf_x86_64";
+ $objdump .= " -M x86-64";
+ $objcopy .= " -O elf64-x86-64";
+ $cc .= " -m64";
+
+} elsif ($arch eq "i386") {
+ $section_regex = "Disassembly of section\\s+(\\S+):";
+ $function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
+ $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount\$";
+ $type = ".long";
+
+ # force flags for this arch
+ $ld .= " -m elf_i386";
+ $objdump .= " -M i386";
+ $objcopy .= " -O elf32-i386";
+ $cc .= " -m32";
+
+} else {
+ die "Arch $arch is not supported with CONFIG_FTRACE_MCOUNT_RECORD";
+}
+
+my $text_found = 0;
+my $read_function = 0;
+my $opened = 0;
+my $mcount_section = "__mcount_loc";
+
+my $dirname;
+my $filename;
+my $prefix;
+my $ext;
+
+if ($inputfile =~ m,^(.*)/([^/]*)$,) {
+ $dirname = $1;
+ $filename = $2;
+} else {
+ $dirname = ".";
+ $filename = $inputfile;
+}
+
+if ($filename =~ m,^(.*)(\.\S),) {
+ $prefix = $1;
+ $ext = $2;
+} else {
+ $prefix = $filename;
+ $ext = "";
+}
+
+my $mcount_s = $dirname . "/.tmp_mc_" . $prefix . ".s";
+my $mcount_o = $dirname . "/.tmp_mc_" . $prefix . ".o";
+
+#
+# --globalize-symbols came out in 2.17, we must test the version
+# of objcopy, and if it is less than 2.17, then we can not
+# record local functions.
+my $use_locals = 01;
+my $local_warn_once = 0;
+my $found_version = 0;
+
+open (IN, "$objcopy --version |") || die "error running $objcopy";
+while (<IN>) {
+ if (/objcopy.*\s(\d+)\.(\d+)/) {
+ my $major = $1;
+ my $minor = $2;
+
+ $found_version = 1;
+ if ($major < 2 ||
+ ($major == 2 && $minor < 17)) {
+ $use_locals = 0;
+ }
+ last;
+ }
+}
+close (IN);
+
+if (!$found_version) {
+ print STDERR "WARNING: could not find objcopy version.\n" .
+ "\tDisabling local function references.\n";
+}
+
+
+#
+# Step 1: find all the local (static functions) and weak symbols.
+# 't' is local, 'w/W' is weak (we never use a weak function)
+#
+open (IN, "$nm $inputfile|") || die "error running $nm";
+while (<IN>) {
+ if (/^[0-9a-fA-F]+\s+t\s+(\S+)/) {
+ $locals{$1} = 1;
+ } elsif (/^[0-9a-fA-F]+\s+([wW])\s+(\S+)/) {
+ $weak{$2} = $1;
+ }
+}
+close(IN);
+
+my @offsets; # Array of offsets of mcount callers
+my $ref_func; # reference function to use for offsets
+my $offset = 0; # offset of ref_func to section beginning
+
+##
+# update_funcs - print out the current mcount callers
+#
+# Go through the list of offsets to callers and write them to
+# the output file in a format that can be read by an assembler.
+#
+sub update_funcs
+{
+ return if ($#offsets < 0);
+
+ defined($ref_func) || die "No function to reference";
+
+ # A section only had a weak function, to represent it.
+ # Unfortunately, a weak function may be overwritten by another
+ # function of the same name, making all these offsets incorrect.
+ # To be safe, we simply print a warning and bail.
+ if (defined $weak{$ref_func}) {
+ print STDERR
+ "$inputfile: WARNING: referencing weak function" .
+ " $ref_func for mcount\n";
+ return;
+ }
+
+ # is this function static? If so, note this fact.
+ if (defined $locals{$ref_func}) {
+
+ # only use locals if objcopy supports globalize-symbols
+ if (!$use_locals) {
+ return;
+ }
+ $convert{$ref_func} = 1;
+ }
+
+ # Loop through all the mcount caller offsets and print a reference
+ # to the caller based from the ref_func.
+ for (my $i=0; $i <= $#offsets; $i++) {
+ if (!$opened) {
+ open(FILE, ">$mcount_s") || die "can't create $mcount_s\n";
+ $opened = 1;
+ print FILE "\t.section $mcount_section,\"a\",\@progbits\n";
+ }
+ printf FILE "\t%s %s + %d\n", $type, $ref_func, $offsets[$i] - $offset;
+ }
+}
+
+#
+# Step 2: find the sections and mcount call sites
+#
+open(IN, "$objdump -dr $inputfile|") || die "error running $objdump";
+
+my $text;
+
+while (<IN>) {
+ # is it a section?
+ if (/$section_regex/) {
+
+ # Only record text sections that we know are safe
+ if (defined($text_sections{$1})) {
+ $read_function = 1;
+ } else {
+ $read_function = 0;
+ }
+ # print out any recorded offsets
+ update_funcs() if ($text_found);
+
+ # reset all markers and arrays
+ $text_found = 0;
+ undef($ref_func);
+ undef(@offsets);
+
+ # section found, now is this a start of a function?
+ } elsif ($read_function && /$function_regex/) {
+ $text_found = 1;
+ $offset = hex $1;
+ $text = $2;
+
+ # if this is either a local function or a weak function
+ # keep looking for functions that are global that
+ # we can use safely.
+ if (!defined($locals{$text}) && !defined($weak{$text})) {
+ $ref_func = $text;
+ $read_function = 0;
+ } else {
+ # if we already have a function, and this is weak, skip it
+ if (!defined($ref_func) || !defined($weak{$text})) {
+ $ref_func = $text;
+ }
+ }
+ }
+
+ # is this a call site to mcount? If so, record it to print later
+ if ($text_found && /$mcount_regex/) {
+ $offsets[$#offsets + 1] = hex $1;
+ }
+}
+
+# dump out anymore offsets that may have been found
+update_funcs() if ($text_found);
+
+# If we did not find any mcount callers, we are done (do nothing).
+if (!$opened) {
+ exit(0);
+}
+
+close(FILE);
+
+#
+# Step 3: Compile the file that holds the list of call sites to mcount.
+#
+`$cc -o $mcount_o -c $mcount_s`;
+
+my @converts = keys %convert;
+
+#
+# Step 4: Do we have sections that started with local functions?
+#
+if ($#converts >= 0) {
+ my $globallist = "";
+ my $locallist = "";
+
+ foreach my $con (@converts) {
+ $globallist .= " --globalize-symbol $con";
+ $locallist .= " --localize-symbol $con";
+ }
+
+ my $globalobj = $dirname . "/.tmp_gl_" . $filename;
+ my $globalmix = $dirname . "/.tmp_mx_" . $filename;
+
+ #
+ # Step 5: set up each local function as a global
+ #
+ `$objcopy $globallist $inputfile $globalobj`;
+
+ #
+ # Step 6: Link the global version to our list.
+ #
+ `$ld -r $globalobj $mcount_o -o $globalmix`;
+
+ #
+ # Step 7: Convert the local functions back into local symbols
+ #
+ `$objcopy $locallist $globalmix $inputfile`;
+
+ # Remove the temp files
+ `$rm $globalobj $globalmix`;
+
+} else {
+
+ my $mix = $dirname . "/.tmp_mx_" . $filename;
+
+ #
+ # Step 8: Link the object with our list of call sites object.
+ #
+ `$ld -r $inputfile $mcount_o -o $mix`;
+
+ #
+ # Step 9: Move the result back to the original object.
+ #
+ `$mv $mix $inputfile`;
+}
+
+# Clean up the temp files
+`$rm $mcount_o $mcount_s`;
+
+exit(0);
diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index 83b75126c9f..72d233528ad 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -9,11 +9,13 @@ usage() {
cd "${1:-.}" || usage
# Check for git and a git repo.
-if head=`git rev-parse --verify HEAD 2>/dev/null`; then
+if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
# Do we have an untagged version?
if git name-rev --tags HEAD | grep -E '^HEAD[[:space:]]+(.*~[0-9]*|undefined)$' > /dev/null; then
if tag=`git describe 2>/dev/null`; then
echo $tag | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
+ else
+ printf '%s%s' -g $head
fi
fi
@@ -55,7 +57,7 @@ if rev=`svn info 2>/dev/null | grep '^Revision'`; then
# Are there uncommitted changes?
if [ $changes != 0 ]; then
- printf -- '-svn%s%s%s' "$rev" -dirty "$changes"
+ printf -- '-svn%s%s' "$rev" -dirty
else
printf -- '-svn%s' "$rev"
fi
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 03:14:27 +0000