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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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