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authorJim Radford <radford@galvanix.com>2008-11-20 19:48:39 -0800
committerIngo Molnar <mingo@elte.hu>2008-11-23 11:43:32 +0100
commite58918ab9d4cd375f6d842e6d88cf4d7a55cbfcc (patch)
treed9b9ef0f9e04d237234ebc331351458b601c4756 /scripts/recordmcount.pl
parent3a3d04aed05add2247ea2ba5da5f90dba4062f3f (diff)
downloadlinux-2.6.34-ux500-e58918ab9d4cd375f6d842e6d88cf4d7a55cbfcc.tar.gz
ftrace: scripts/recordmcount.pl support for ARM
Impact: extend scripts/recordmcount.pl to ARM Arm uses %progbits instead of @progbits and requires only 4 byte alignment. [ Thanks to Sam Ravnborg for mentioning that ARM uses %progbits ] Signed-off-by: Jim Radford <radford@galvanix.com> Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'scripts/recordmcount.pl')
-rwxr-xr-xscripts/recordmcount.pl8
1 files changed, 7 insertions, 1 deletions
diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index 03b6af1388e..0197e2f6b54 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -136,6 +136,7 @@ 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)
my $alignment; # The .align value to use for $mcount_section
+my $section_type; # Section header plus possible alignment command
if ($arch eq "x86") {
if ($bits == 64) {
@@ -153,6 +154,7 @@ $nm_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\S+)";
$section_regex = "Disassembly of section\\s+(\\S+):";
$function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
$mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount\$";
+$section_type = '@progbits';
$type = ".long";
if ($arch eq "x86_64") {
@@ -192,6 +194,10 @@ if ($arch eq "x86_64") {
$type = ".quad";
}
+} elsif ($arch eq "arm") {
+ $alignment = 2;
+ $section_type = '%progbits';
+
} else {
die "Arch $arch is not supported with CONFIG_FTRACE_MCOUNT_RECORD";
}
@@ -312,7 +318,7 @@ sub update_funcs
if (!$opened) {
open(FILE, ">$mcount_s") || die "can't create $mcount_s\n";
$opened = 1;
- print FILE "\t.section $mcount_section,\"a\",\@progbits\n";
+ print FILE "\t.section $mcount_section,\"a\",$section_type\n";
print FILE "\t.align $alignment\n" if (defined($alignment));
}
printf FILE "\t%s %s + %d\n", $type, $ref_func, $offsets[$i] - $offset;