netfilter: fix some sparse endianess warnings

[safe/jmp/linux-2.6] / scripts / recordmcount.pl

diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index 2ded5c8..91033e6 100755 (executable)
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -26,7 +26,7 @@
 # which will also be the location of that section after final link.
 # e.g.
 #
-#  .section ".text.sched"
+#  .section ".sched.text", "ax"
 #  .globl my_func
 #  my_func:
 #        [...]
@@ -39,7 +39,7 @@
 #        [...]
 #
 # 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:
+# offset from .sched.text. If we make another file called tmp.s with:
 #
 #  .section __mcount_loc
 #  .quad  my_func + 0x5
@@ -51,7 +51,7 @@
 # But this gets hard if my_func is not globl (a static function).
 # In such a case we have:
 #
-#  .section ".text.sched"
+#  .section ".sched.text", "ax"
 #  my_func:
 #        [...]
 #        call mcount  (offset: 0x5)
@@ -101,7 +101,7 @@ $P =~ s@.*/@@g;
 my $V = '0.1';
 
 if ($#ARGV < 7) {
-       print "usage: $P arch objdump objcopy cc ld nm rm mv is_module inputfile\n";
+       print "usage: $P arch bits objdump objcopy cc ld nm rm mv is_module inputfile\n";
        print "version: $V\n";
        exit(1);
 }
@@ -185,6 +185,19 @@ if ($arch eq "x86_64") {
     $objcopy .= " -O elf32-i386";
     $cc .= " -m32";
 
+} elsif ($arch eq "s390" && $bits == 32) {
+    $mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*R_390_32\\s+_mcount\$";
+    $alignment = 4;
+    $ld .= " -m elf_s390";
+    $cc .= " -m31";
+
+} elsif ($arch eq "s390" && $bits == 64) {
+    $mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*R_390_(PC|PLT)32DBL\\s+_mcount\\+0x2\$";
+    $alignment = 8;
+    $type = ".quad";
+    $ld .= " -m elf64_s390";
+    $cc .= " -m64";
+
 } elsif ($arch eq "sh") {
     $alignment = 2;
 
@@ -275,7 +288,6 @@ if (!$found_version) {
        "\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)
@@ -343,13 +355,16 @@ sub update_funcs
 #
 # Step 2: find the sections and mcount call sites
 #
-open(IN, "$objdump -dr $inputfile|") || die "error running $objdump";
+open(IN, "$objdump -hdr $inputfile|") || die "error running $objdump";
 
 my $text;
 
+my $read_headers = 1;
+
 while (<IN>) {
     # is it a section?
     if (/$section_regex/) {
+       $read_headers = 0;
 
        # Only record text sections that we know are safe
        if (defined($text_sections{$1})) {
@@ -383,6 +398,19 @@ while (<IN>) {
                $ref_func = $text;
            }
        }
+    } elsif ($read_headers && /$mcount_section/) {
+       #
+       # Somehow the make process can execute this script on an
+       # object twice. If it does, we would duplicate the mcount
+       # section and it will cause the function tracer self test
+       # to fail. Check if the mcount section exists, and if it does,
+       # warn and exit.
+       #
+       print STDERR "ERROR: $mcount_section already in $inputfile\n" .
+           "\tThis may be an indication that your build is corrupted.\n" .
+           "\tDelete $inputfile and try again. If the same object file\n" .
+           "\tstill causes an issue, then disable CONFIG_DYNAMIC_FTRACE.\n";
+       exit(-1);
     }
 
     # is this a call site to mcount? If so, record it to print later