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perf symbols: Simplify symbol machinery setup

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And also express its configuration toggles via a struct.

Now all one has to do is to call symbol__init(NULL) if the
defaults are OK, or pass a struct symbol_conf pointer with the
desired configuration.

If a tool uses kernel_maps__find_symbol() to look at the kernel
and modules mappings for a symbol but didn't call symbol__init()
first, that will generate a one time warning too, alerting the
subcommand developer that symbol__init() must be called.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1259071517-3242-2-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Arnaldo Carvalho de Melo
2009-11-24 12:05:15 -02:00
committed by Ingo Molnar
parent 7cc017edb9
commit b32d133aec
12 changed files with 85 additions and 60 deletions
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6
tools/perf/util/header.c
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@@ -253,12 +253,6 @@ static int perf_header__adds_write(struct perf_header *self, int fd)
buildid_sec = &feat_sec[idx++];
/*
* Read the kernel buildid nad the list of loaded modules with
* its build_ids:
*/
kernel_maps__init(NULL, false, true);
/* Write build-ids */
buildid_sec->offset = lseek(fd, 0, SEEK_CUR);
err = dsos__write_buildid_table(fd);