Pass retain and exclude parameters to /pprof/symbol.
Pass the retain and exclude parameters to the /pprof/symbol pprof server endpoint so that the server has the opportunity to optimize which symbols it looks up and/or returns mappings for.
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@ -3385,6 +3385,27 @@ sub ReadSymbols {
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return $map;
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}
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sub URLEncode {
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my $str = shift;
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$str =~ s/([^A-Za-z0-9\-_.!~*'()])/ sprintf "%%%02x", ord $1 /eg;
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return $str;
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}
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sub AppendSymbolFilterParams {
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my $url = shift;
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my @params = ();
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if ($main::opt_retain ne '') {
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push(@params, sprintf("retain=%s", URLEncode($main::opt_retain)));
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}
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if ($main::opt_exclude ne '') {
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push(@params, sprintf("exclude=%s", URLEncode($main::opt_exclude)));
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}
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if (scalar @params > 0) {
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$url = sprintf("%s?%s", $url, join("&", @params));
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}
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return $url;
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}
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# Fetches and processes symbols to prepare them for use in the profile output
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# code. If the optional 'symbol_map' arg is not given, fetches symbols from
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# $SYMBOL_PAGE for all PC values found in profile. Otherwise, the raw symbols
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@ -3409,9 +3430,11 @@ sub FetchSymbols {
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my $command_line;
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if (join(" ", @URL_FETCHER) =~ m/\bcurl -s/) {
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$url = ResolveRedirectionForCurl($url);
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$url = AppendSymbolFilterParams($url);
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$command_line = ShellEscape(@URL_FETCHER, "-d", "\@$main::tmpfile_sym",
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$url);
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} else {
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$url = AppendSymbolFilterParams($url);
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$command_line = (ShellEscape(@URL_FETCHER, "--post", $url)
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. " < " . ShellEscape($main::tmpfile_sym));
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}
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