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| author | Jim Radford <radford@galvanix.com> | 2008-11-20 19:48:39 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-23 11:43:32 +0100 |
| commit | e58918ab9d4cd375f6d842e6d88cf4d7a55cbfcc (patch) | |
| tree | d9b9ef0f9e04d237234ebc331351458b601c4756 /scripts | |
| parent | 3a3d04aed05add2247ea2ba5da5f90dba4062f3f (diff) | |
| download | lwn-e58918ab9d4cd375f6d842e6d88cf4d7a55cbfcc.tar.gz lwn-e58918ab9d4cd375f6d842e6d88cf4d7a55cbfcc.zip | |
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')
| -rwxr-xr-x | scripts/recordmcount.pl | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl index 03b6af1388ea..0197e2f6b544 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; |