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Pass retain and exclude parameters to /pprof/symbol.

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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.
This commit is contained in:
Jason Evans 2016-01-29 19:59:06 -08:00
parent f459d5a203
commit d1acd1bea9
1 changed files with 23 additions and 0 deletions
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23
bin/jeprof.in
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@ -3385,6 +3385,27 @@ sub ReadSymbols {
return $map; return $map;
} }
sub URLEncode {
my $str = shift;
$str =~ s/([^A-Za-z0-9\-_.!~*'()])/ sprintf "%%%02x", ord $1 /eg;
return $str;
}
sub AppendSymbolFilterParams {
my $url = shift;
my @params = ();
if ($main::opt_retain ne '') {
push(@params, sprintf("retain=%s", URLEncode($main::opt_retain)));
}
if ($main::opt_exclude ne '') {
push(@params, sprintf("exclude=%s", URLEncode($main::opt_exclude)));
}
if (scalar @params > 0) {
$url = sprintf("%s?%s", $url, join("&", @params));
}
return $url;
}
# Fetches and processes symbols to prepare them for use in the profile output # Fetches and processes symbols to prepare them for use in the profile output
# code. If the optional 'symbol_map' arg is not given, fetches symbols from # code. If the optional 'symbol_map' arg is not given, fetches symbols from
# $SYMBOL_PAGE for all PC values found in profile. Otherwise, the raw symbols # $SYMBOL_PAGE for all PC values found in profile. Otherwise, the raw symbols
@ -3409,9 +3430,11 @@ sub FetchSymbols {
my $command_line; my $command_line;
if (join(" ", @URL_FETCHER) =~ m/\bcurl -s/) { if (join(" ", @URL_FETCHER) =~ m/\bcurl -s/) {
$url = ResolveRedirectionForCurl($url); $url = ResolveRedirectionForCurl($url);
$url = AppendSymbolFilterParams($url);
$command_line = ShellEscape(@URL_FETCHER, "-d", "\@$main::tmpfile_sym", $command_line = ShellEscape(@URL_FETCHER, "-d", "\@$main::tmpfile_sym",
$url); $url);
} else { } else {
$url = AppendSymbolFilterParams($url);
$command_line = (ShellEscape(@URL_FETCHER, "--post", $url) $command_line = (ShellEscape(@URL_FETCHER, "--post", $url)
. " < " . ShellEscape($main::tmpfile_sym)); . " < " . ShellEscape($main::tmpfile_sym));
} }