linux-raspberrypi-5.4: backport a fix for perf build with -fno-common from gcc-10

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

2 files changed, 69 insertions, 0 deletions

diff --git a/recipes-kernel/linux/files/0001-perf-cs-etm-Move-definition-of-traceid_list-global-v.patch b/recipes-kernel/linux/files/0001-perf-cs-etm-Move-definition-of-traceid_list-global-v.patch
new file mode 100644
index 0000000..0d86947
--- /dev/null
+++ b/recipes-kernel/linux/files/0001-perf-cs-etm-Move-definition-of-traceid_list-global-v.patch
@@ -0,0 +1,68 @@
+From 168200b6d6ea0cb5765943ec5da5b8149701f36a Mon Sep 17 00:00:00 2001
+From: Leo Yan <leo.yan@linaro.org>
+Date: Tue, 5 May 2020 21:36:42 +0800
+Subject: [PATCH] perf cs-etm: Move definition of 'traceid_list' global
+ variable from header file
+
+The variable 'traceid_list' is defined in the header file cs-etm.h,
+if multiple C files include cs-etm.h the compiler might complaint for
+multiple definition of 'traceid_list'.
+
+To fix multiple definition error, move the definition of 'traceid_list'
+into cs-etm.c.
+
+Upstream-Status: Backport [v5.8-rc1]
+
+Fixes: cd8bfd8c973e ("perf tools: Add processing of coresight metadata")
+Reported-by: Thomas Backlund <tmb@mageia.org>
+Signed-off-by: Leo Yan <leo.yan@linaro.org>
+Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
+Reviewed-by: Mike Leach <mike.leach@linaro.org>
+Tested-by: Mike Leach <mike.leach@linaro.org>
+Tested-by: Thomas Backlund <tmb@mageia.org>
+Cc: Alexander Shishkin <alexander.shishkin@linux.intel.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>
+Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
+Cc: Tor Jeremiassen <tor@ti.com>
+Cc: linux-arm-kernel@lists.infradead.org
+Link: http://lore.kernel.org/lkml/20200505133642.4756-1-leo.yan@linaro.org
+Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
+---
+ tools/perf/util/cs-etm.c | 3 +++
+ tools/perf/util/cs-etm.h | 3 ---
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c
+index 3c802fde4954..c283223fb31f 100644
+--- a/tools/perf/util/cs-etm.c
++++ b/tools/perf/util/cs-etm.c
+@@ -94,6 +94,9 @@ struct cs_etm_queue {
+        struct cs_etm_traceid_queue **traceid_queues;
+ };
+ 
++/* RB tree for quick conversion between traceID and metadata pointers */
++static struct intlist *traceid_list;
++
+ static int cs_etm__update_queues(struct cs_etm_auxtrace *etm);
+ static int cs_etm__process_queues(struct cs_etm_auxtrace *etm);
+ static int cs_etm__process_timeless_queues(struct cs_etm_auxtrace *etm,
+diff --git a/tools/perf/util/cs-etm.h b/tools/perf/util/cs-etm.h
+index 650ecc2a6349..4ad925d6d799 100644
+--- a/tools/perf/util/cs-etm.h
++++ b/tools/perf/util/cs-etm.h
+@@ -114,9 +114,6 @@ enum cs_etm_isa {
+        CS_ETM_ISA_T32,
+ };
+ 
+-/* RB tree for quick conversion between traceID and metadata pointers */
+-struct intlist *traceid_list;
+-
+ struct cs_etm_queue;
+ 
+ struct cs_etm_packet {
+-- 
+2.25.1
+
diff --git a/recipes-kernel/linux/linux-raspberrypi_5.4.bb b/recipes-kernel/linux/linux-raspberrypi_5.4.bb
index 9bea10d..a425836 100644
--- a/recipes-kernel/linux/linux-raspberrypi_5.4.bb
+++ b/recipes-kernel/linux/linux-raspberrypi_5.4.bb
@@ -8,5 +8,6 @@ require linux-raspberrypi_5.4.inc
 
 SRC_URI += "file://0001-Revert-selftests-bpf-Skip-perf-hw-events-test-if-the.patch \
             file://0002-Revert-selftests-bpf-Fix-perf_buffer-test-on-systems.patch \
+            file://0001-perf-cs-etm-Move-definition-of-traceid_list-global-v.patch \
             file://powersave.cfg \
            "