From: Arnaldo Carvalho de Melo <acme@infradead.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org, Hyeoncheol Lee <hyc.lee@gmail.com>,
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 01/18] perf probe: Add union member access support
Date: Mon, 17 Sep 2012 14:17:55 -0300 [thread overview]
Message-ID: <1347902292-14536-2-git-send-email-acme@infradead.org> (raw)
In-Reply-To: <1347902292-14536-1-git-send-email-acme@infradead.org>
From: Hyeoncheol Lee <hyc.lee@gmail.com>
Union members can be accessed with '.' or '->' like data structure
member access
Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/CANFS6baeuSBxPGQ8SUZWZErJ2bWs-Nojg+FSo138E1QK8bJJig@mail.gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/probe-finder.c | 24 ++++++++++++++++--------
1 files changed, 16 insertions(+), 8 deletions(-)
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 526ba56..1daf5c1 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -525,8 +525,10 @@ static int convert_variable_fields(Dwarf_Die *vr_die, const char *varname,
return -ENOENT;
}
/* Verify it is a data structure */
- if (dwarf_tag(&type) != DW_TAG_structure_type) {
- pr_warning("%s is not a data structure.\n", varname);
+ tag = dwarf_tag(&type);
+ if (tag != DW_TAG_structure_type && tag != DW_TAG_union_type) {
+ pr_warning("%s is not a data structure nor an union.\n",
+ varname);
return -EINVAL;
}
@@ -539,8 +541,9 @@ static int convert_variable_fields(Dwarf_Die *vr_die, const char *varname,
*ref_ptr = ref;
} else {
/* Verify it is a data structure */
- if (tag != DW_TAG_structure_type) {
- pr_warning("%s is not a data structure.\n", varname);
+ if (tag != DW_TAG_structure_type && tag != DW_TAG_union_type) {
+ pr_warning("%s is not a data structure nor an union.\n",
+ varname);
return -EINVAL;
}
if (field->name[0] == '[') {
@@ -567,10 +570,15 @@ static int convert_variable_fields(Dwarf_Die *vr_die, const char *varname,
}
/* Get the offset of the field */
- ret = die_get_data_member_location(die_mem, &offs);
- if (ret < 0) {
- pr_warning("Failed to get the offset of %s.\n", field->name);
- return ret;
+ if (tag == DW_TAG_union_type) {
+ offs = 0;
+ } else {
+ ret = die_get_data_member_location(die_mem, &offs);
+ if (ret < 0) {
+ pr_warning("Failed to get the offset of %s.\n",
+ field->name);
+ return ret;
+ }
}
ref->offset += (long)offs;
--
1.7.1
next parent reply other threads:[~2012-09-17 17:24 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1347902292-14536-1-git-send-email-acme@infradead.org>
2012-09-17 17:17 ` Arnaldo Carvalho de Melo [this message]
2012-09-17 17:17 ` [PATCH 02/18] perf test: Fixup for the die() removal Arnaldo Carvalho de Melo
2012-09-17 17:17 ` [PATCH 03/18] perf sched: " Arnaldo Carvalho de Melo
2012-09-17 17:17 ` [PATCH 04/18] tools lib traceevent: Define _GNU_SOURCE in Makefile Arnaldo Carvalho de Melo
2012-09-17 17:17 ` [PATCH 05/18] perf hists browser: Fix output for 100.00% Arnaldo Carvalho de Melo
2012-09-17 17:18 ` [PATCH 06/18] perf hists browser: Fix first column printing Arnaldo Carvalho de Melo
2012-09-17 17:18 ` [PATCH 07/18] perf tools: Add sort__has_sym Arnaldo Carvalho de Melo
2012-09-17 17:18 ` [PATCH 08/18] perf report: Enable integrated annotation only if possible Arnaldo Carvalho de Melo
2012-09-17 17:18 ` [PATCH 09/18] perf stat: Move stats related code to util/stat.c Arnaldo Carvalho de Melo
2012-09-17 17:18 ` [PATCH 10/18] perf archive: Remove -f from the rm command Arnaldo Carvalho de Melo
2012-09-17 17:18 ` [PATCH 11/18] perf archive: Make 'f' the last parameter for tar Arnaldo Carvalho de Melo
2012-09-17 17:18 ` [PATCH 12/18] perf symbols: Filter samples with unresolved symbol when "--symbols" option is used Arnaldo Carvalho de Melo
2012-09-17 17:18 ` [PATCH 13/18] perf scripts: Add --symbols option to handle specific symbols Arnaldo Carvalho de Melo
2012-09-17 17:18 ` [PATCH 14/18] perf scripts: Add event_analyzing_sample-record/report Arnaldo Carvalho de Melo
2012-09-17 17:18 ` [PATCH 15/18] perf scripts: Export a find_scripts() function Arnaldo Carvalho de Melo
2012-09-17 17:18 ` [PATCH 16/18] perf report: Add missing perf_hpp__init for pipe-mode Arnaldo Carvalho de Melo
2012-09-17 17:18 ` [PATCH 17/18] perf/x86: Add cpumask for uncore pmu Arnaldo Carvalho de Melo
2012-09-17 17:18 ` [PATCH 18/18] perf stat: Check PMU cpumask file Arnaldo Carvalho de Melo
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