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Revision f2ebf8ffe7af10bff02d34addbebd9199de65ed2 authored by Riccardo Mancini on 15 July 2021, 16:07:21 UTC, committed by Arnaldo Carvalho de Melo on 15 July 2021, 20:34:39 UTC 
perf trace: Free syscall->arg_fmt
 
ASan reports several memory leaks running:

  # perf test "88: Check open filename arg using perf trace + vfs_getname"

The second of these leaks is caused by the arg_fmt field of syscall not
being deallocated.

This patch adds a new function syscall__exit which is called on all
syscalls.table entries in trace__exit, which will free the arg_fmt
field.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/d68f25c043d30464ac9fa79c3399e18f429bca82.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
1 parent 6c7f0ab
Raw File
profile2linkerlist.pl 
#!/usr/bin/env perl
# SPDX-License-Identifier: GPL-2.0

#
# Takes a (sorted) output of readprofile and turns it into a list suitable for
# linker scripts
#
# usage:
#	 readprofile | sort -rn | perl profile2linkerlist.pl > functionlist
#
use strict;

while (<>) {
  my $line = $_;

  $_ =~ /\W*[0-9]+\W*([a-zA-Z\_0-9]+)\W*[0-9]+/;

  print "*(.text.$1)\n"
      unless ($line =~ /unknown/) || ($line =~ /total/);
}
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