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-rw-r--r--meta/recipes-kernel/lttng/lttng-modules/0001-compaction-make-tracepoints-condtional-on-CONFIG_COM.patch103
1 files changed, 103 insertions, 0 deletions
diff --git a/meta/recipes-kernel/lttng/lttng-modules/0001-compaction-make-tracepoints-condtional-on-CONFIG_COM.patch b/meta/recipes-kernel/lttng/lttng-modules/0001-compaction-make-tracepoints-condtional-on-CONFIG_COM.patch
new file mode 100644
index 0000000000..305ca7cb8b
--- /dev/null
+++ b/meta/recipes-kernel/lttng/lttng-modules/0001-compaction-make-tracepoints-condtional-on-CONFIG_COM.patch
@@ -0,0 +1,103 @@
1From 417bb00022c813c6dc11bfa652d74f3687df7626 Mon Sep 17 00:00:00 2001
2From: Bruce Ashfield <bruce.ashfield@gmail.com>
3Date: Wed, 3 Aug 2022 14:55:56 -0400
4Subject: [PATCH] compaction: make tracepoints condtional on CONFIG_COMPACTION
5
6When building against a v5.19 mips kernel, the following errors
7were triggered:
8
9 | lttng-modules-2.13.4/src/probes/../../include/instrumentation/events/compaction.h:105:42: note: expected 'struct compact_control *' but argument is of type 'struct compact_control *'
10 | 105 | TP_PROTO(struct compact_control *cc,
11 | | ~~~~~~~~~~~~~~~~~~~~~~~~^~
12 | lttng-modules-2.13.4/src/probes/../../include/lttng/tracepoint-event-impl.h:779:68: note: in definition of macro 'LTTNG_TRACEPOINT_EVENT_CLASS_CODE'
13 | 779 | static inline size_t __event_get_align__##_name(void *__tp_locvar, _proto) \
14 | | ^~~~~~
15 | lttng-modules-2.13.4/src/probes/../../include/lttng/tracepoint-event-impl.h:106:50: note: in expansion of macro 'PARAMS'
16 | 106 | LTTNG_TRACEPOINT_EVENT_CLASS_CODE(_name, PARAMS(_proto), PARAMS(_args), , , \
17 | | ^~~~~~
18 | lttng-modules-2.13.4/src/probes/../../include/lttng/tracepoint-event-impl.h:41:9: note: in expansion of macro 'LTTNG_TRACEPOINT_EVENT_CLASS'
19 | 41 | LTTNG_TRACEPOINT_EVENT_CLASS(map, \
20 | | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
21 | lttng-modules-2.13.4/src/probes/../../include/lttng/tracepoint-event-impl.h:42:30: note: in expansion of macro 'PARAMS'
22 | 42 | PARAMS(proto), \
23 | | ^~~~~~
24 | lttng-modules-2.13.4/src/probes/../../include/instrumentation/events/compaction.h:101:1: note: in expansion of macro 'LTTNG_TRACEPOINT_EVENT_MAP'
25 | 101 | LTTNG_TRACEPOINT_EVENT_MAP(mm_compaction_migratepages,
26 | | ^~~~~~~~~~~~~~~~~~~~~~~~~~
27 | lttng-modules-2.13.4/src/probes/../../include/instrumentation/events/compaction.h:105:9: note: in expansion of macro 'TP_PROTO'
28 | 105 | TP_PROTO(struct compact_control *cc,
29 | | ^~~~~~~~
30 | lttng-modules-2.13.4/src/probes/../../include/instrumentation/events/compaction.h:112:57: error: invalid use of undefined type 'struct compact_control'
31
32...
33
34 | lttng-modules-2.13.4/src/probes/../../include/instrumentation/events/compaction.h:108:25: warning: 'struct compact_control' declared inside parameter list will not be visible outside of this definition or declaration
35 | 108 | TP_PROTO(struct compact_control *cc,
36 | | ^~~~~~~~~~~~~~~
37 | lttng-modules-2.13.4/src/probes/../../include/lttng/tracepoint-event-impl.h:159:43: note: in definition of macro 'LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP'
38 | 159 | void __event_template_proto___##_template(_proto);
39 | | ^~~~~~
40 | lttng-modules-2.13.4/src/probes/../../include/lttng/tracepoint-event-impl.h:45:61: note: in expansion of macro 'PARAMS'
41 | 45 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(map, name, map, PARAMS(proto), PARAMS(args))
42 | | ^~~~~~
43 | lttng-modules-2.13.4/src/probes/../../include/instrumentation/events/compaction.h:104:1: note: in expansion of macro 'LTTNG_TRACEPOINT_EVENT_MAP'
44 | 104 | LTTNG_TRACEPOINT_EVENT_MAP(mm_compaction_migratepages,
45 | | ^~~~~~~~~~~~~~~~~~~~~~~~~~
46 | lttng-modules-2.13.4/src/probes/../../include/instrumentation/events/compaction.h:108:9: note: in expansion of macro 'TP_PROTO'
47 | 108 | TP_PROTO(struct compact_control *cc,
48 | | ^~~~~~~~
49 | lttng-modules-2.13.4/src/probes/../../include/lttng/tracepoint-event-impl.h:159:6: error: conflicting types for '__event_template_proto___compaction_migratepages'; have 'void(struct compact_control *, unsigned int)'
50 | 159 | void __event_template_proto___##_template(_proto);
51 | | ^~~~~~~~~~~~~~~~~~~~~~~~~
52 | lttng-modules-2.13.4/src/probes/../../include/lttng/tracepoint-event-impl.h:45:9: note: in expansion of macro 'LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP'
53 | 45 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(map, name, map, PARAMS(proto), PARAMS(args))
54 | | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
55
56The root cause appears to be that this particular mips kernel does not
57have CONFIG_COMPACTION avaiable, and hence we end up with the struct
58declaration within this tracepoint, and then conflicting types.
59
60While putting the conditional around only compaction_migratepages seemed
61sufficient to get the build working, it doesn't look like any of the
62tracepoints should be valid, so we extend it to all definitions.
63
64Upstream-Status: Submitted [https://lists.lttng.org/pipermail/lttng-dev/2022-August/030246.html]
65
66Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
67---
68 include/instrumentation/events/compaction.h | 5 +++++
69 1 file changed, 5 insertions(+)
70
71diff --git a/include/instrumentation/events/compaction.h b/include/instrumentation/events/compaction.h
72index ecae39a..155804a 100644
73--- a/include/instrumentation/events/compaction.h
74+++ b/include/instrumentation/events/compaction.h
75@@ -9,6 +9,8 @@
76 #include <linux/types.h>
77 #include <lttng/kernel-version.h>
78
79+#ifdef CONFIG_COMPACTION
80+
81 #if LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0)
82
83 LTTNG_TRACEPOINT_EVENT_CLASS(compaction_isolate_template,
84@@ -97,6 +99,7 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(compaction_isolate_template,
85
86 #endif /* #else #if LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0) */
87
88+
89 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,18,0))
90 LTTNG_TRACEPOINT_EVENT_MAP(mm_compaction_migratepages,
91
92@@ -182,6 +185,8 @@ LTTNG_TRACEPOINT_EVENT_MAP(mm_compaction_migratepages,
93 )
94 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,16,0)) */
95
96+#endif /* CONFIG_COMPACTION */
97+
98 #endif /* LTTNG_TRACE_COMPACTION_H */
99
100 /* This part must be outside protection */
101--
1022.25.1
103
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