From 45de34bbe3e1b8f4c8bc8ecaf6c915b4b4c545f8 Mon Sep 17 00:00:00 2001 From: Stephane Eranian Date: Tue, 1 Jun 2010 21:25:01 +0200 Subject: perf buildid: add perfconfig option to specify buildid cache dir MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch adds the ability to specify an alternate directory to store the buildid cache (buildids, copy of binaries). By default, it is hardcoded to $HOME/.debug. This directory contains immutable data. The layout of the directory is such that no conflicts in filenames are possible. A modification in a file, yields a different buildid and thus a different location in the subdir hierarchy. You may want to put the buildid cache elsewhere because of disk space limitation or simply to share the cache between users. It is also useful for remote collect vs. local analysis of profiles. This patch adds a new config option to the perfconfig file. Under the tag 'buildid', there is a dir option. For instance, if you have: $ cat /etc/perfconfig [buildid] dir = /var/cache/perf-buildid All buildids and binaries are be saved in the directory specified. The perf record, buildid-list, buildid-cache, report, annotate, and archive commands will it to pull information out. The option can be set in the system-wide perfconfig file or in the $HOME/.perfconfig file. Cc: David S. Miller Cc: Frédéric Weisbecker Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Tom Zanussi LKML-Reference: <4c055fb7.df0ce30a.5f0d.ffffae52@mx.google.com> Signed-off-by: Stephane Eranian Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/cache.h | 1 + 1 file changed, 1 insertion(+) (limited to 'tools/perf/util/cache.h') diff --git a/tools/perf/util/cache.h b/tools/perf/util/cache.h index 65fe664fddf6..27e9ebe4076e 100644 --- a/tools/perf/util/cache.h +++ b/tools/perf/util/cache.h @@ -23,6 +23,7 @@ extern int perf_config(config_fn_t fn, void *); extern int perf_config_int(const char *, const char *); extern int perf_config_bool(const char *, const char *); extern int config_error_nonbool(const char *); +extern const char *perf_config_dirname(const char *, const char *); /* pager.c */ extern void setup_pager(void); -- cgit v1.2.3-59-g8ed1b