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SubjectRe: [PATCH v2 2/6] mips dynamic function tracer support
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On Fri, 2009-05-29 at 11:24 -0400, Steven Rostedt wrote:
> On Fri, 29 May 2009, wuzhangjin@gmail.com wrote:
> > diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
> > index 409596e..a5d2ace 100755
> > --- a/scripts/recordmcount.pl
> > +++ b/scripts/recordmcount.pl
> > @@ -213,6 +213,17 @@ if ($arch eq "x86_64") {
> > if ($is_module eq "0") {
> > $cc .= " -mconstant-gp";
> > }
> > +
> > +} elsif ($arch eq "mips") {
> > + $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s_mcount\$";
> > + $ld .= " -melf".$bits."btsmip";
> > +
> > + $cc .= " -mno-abicalls -fno-pic ";
> > +
> > + if ($bits == 64) {
> > + $type = ".dword";
> > + }
> > +
> > } else {
> > die "Arch $arch is not supported with CONFIG_FTRACE_MCOUNT_RECORD";
> > }
> > @@ -441,12 +452,12 @@ if ($#converts >= 0) {
> > #
> > # Step 5: set up each local function as a global
> > #
> > - `$objcopy $globallist $inputfile $globalobj`;
> > + `$objcopy $globallist $inputfile $globalobj 2>&1 >/dev/null`;
> >
> > #
> > # Step 6: Link the global version to our list.
> > #
> > - `$ld -r $globalobj $mcount_o -o $globalmix`;
> > + `$ld -r $globalobj $mcount_o -o $globalmix 2>&1 >/dev/null`;
>
> We still need to find out why these are giving errors. I don't like the
> idea of hiding errors that might be useful. The better way is to change
> the code to avoid having any warnings or errors.

get it :-)
I'm tuning it currently.

thanks!
Wu Zhangjin
>
> -- Steve
>
>
> >
> > #
> > # Step 7: Convert the local functions back into local symbols
> > @@ -454,7 +465,7 @@ if ($#converts >= 0) {
> > `$objcopy $locallist $globalmix $inputfile`;
> >
> > # Remove the temp files
> > - `$rm $globalobj $globalmix`;
> > + `$rm $globalobj $globalmix 2>&1 >/dev/null`;
> >
> > } else {
> >
> > --
> > 1.6.0.4
> >
> >



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