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-rw-r--r--meta-raspberrypi-extras/conf/layer.conf33
-rw-r--r--meta-raspberrypi-extras/recipes/linux/linux-raspberrypi/ARM-perf-wire-up-perf_regs-and-unwind-support-for-AR.patch171
-rw-r--r--meta-raspberrypi-extras/recipes/linux/linux-raspberrypi_3.12.26.bbappend27
3 files changed, 231 insertions, 0 deletions
diff --git a/meta-raspberrypi-extras/conf/layer.conf b/meta-raspberrypi-extras/conf/layer.conf
new file mode 100644
index 0000000..0ac91aa
--- /dev/null
+++ b/meta-raspberrypi-extras/conf/layer.conf
@@ -0,0 +1,33 @@
1#############################################################################
2##
3## Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
4##
5## This file is part of the Qt Enterprise Embedded Scripts of the Qt
6## framework.
7##
8## $QT_BEGIN_LICENSE$
9## Commercial License Usage Only
10## Licensees holding valid commercial Qt license agreements with Digia
11## with an appropriate addendum covering the Qt Enterprise Embedded Scripts,
12## may use this file in accordance with the terms contained in said license
13## agreement.
14##
15## For further information use the contact form at
16## http://www.qt.io/contact-us.
17##
18##
19## $QT_END_LICENSE$
20##
21#############################################################################
22
23# We have a conf and classes directory, append to BBPATH
24BBPATH .= ":${LAYERDIR}"
25
26# We have a recipes directory, add to BBFILES
27BBFILES += "${LAYERDIR}/recipes*/*/*.bb \
28 ${LAYERDIR}/recipes*/*/*.bbappend \
29 "
30
31BBFILE_COLLECTIONS += "b2qt_rpi"
32BBFILE_PATTERN_b2qt_rpi := "^${LAYERDIR}/"
33BBFILE_PRIORITY_b2qt_rpi = "20"
diff --git a/meta-raspberrypi-extras/recipes/linux/linux-raspberrypi/ARM-perf-wire-up-perf_regs-and-unwind-support-for-AR.patch b/meta-raspberrypi-extras/recipes/linux/linux-raspberrypi/ARM-perf-wire-up-perf_regs-and-unwind-support-for-AR.patch
new file mode 100644
index 0000000..4f2a45a
--- /dev/null
+++ b/meta-raspberrypi-extras/recipes/linux/linux-raspberrypi/ARM-perf-wire-up-perf_regs-and-unwind-support-for-AR.patch
@@ -0,0 +1,171 @@
1From 7495f3742dda97612a77d92fa62f85cb7591ab14 Mon Sep 17 00:00:00 2001
2From: Will Deacon <will.deacon@arm.com>
3Date: Thu, 26 Sep 2013 12:36:36 +0100
4Subject: [PATCH] ARM: perf: wire up perf_regs and unwind support for ARM
5
6This patch hooks in the perf_regs and libunwind code for ARM.
7
8Cc: Jean Pihet <jean.pihet@linaro.org>
9Signed-off-by: Will Deacon <will.deacon@arm.com>
10---
11 tools/perf/arch/arm/Makefile | 3 ++
12 tools/perf/arch/arm/include/perf_regs.h | 54 +++++++++++++++++++++++++++++++++
13 tools/perf/arch/arm/util/unwind.c | 48 +++++++++++++++++++++++++++++
14 tools/perf/config/Makefile | 7 +++--
15 4 files changed, 110 insertions(+), 2 deletions(-)
16 create mode 100644 tools/perf/arch/arm/include/perf_regs.h
17 create mode 100644 tools/perf/arch/arm/util/unwind.c
18
19diff --git a/tools/perf/arch/arm/Makefile b/tools/perf/arch/arm/Makefile
20index 15130b5..fe9b61e 100644
21--- a/tools/perf/arch/arm/Makefile
22+++ b/tools/perf/arch/arm/Makefile
23@@ -2,3 +2,6 @@ ifndef NO_DWARF
24 PERF_HAVE_DWARF_REGS := 1
25 LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
26 endif
27+ifndef NO_LIBUNWIND
28+LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/unwind.o
29+endif
30diff --git a/tools/perf/arch/arm/include/perf_regs.h b/tools/perf/arch/arm/include/perf_regs.h
31new file mode 100644
32index 0000000..2a1cfde
33--- /dev/null
34+++ b/tools/perf/arch/arm/include/perf_regs.h
35@@ -0,0 +1,54 @@
36+#ifndef ARCH_PERF_REGS_H
37+#define ARCH_PERF_REGS_H
38+
39+#include <stdlib.h>
40+#include "../../util/types.h"
41+#include <asm/perf_regs.h>
42+
43+#define PERF_REGS_MASK ((1ULL << PERF_REG_ARM_MAX) - 1)
44+#define PERF_REG_IP PERF_REG_ARM_PC
45+#define PERF_REG_SP PERF_REG_ARM_SP
46+
47+static inline const char *perf_reg_name(int id)
48+{
49+ switch (id) {
50+ case PERF_REG_ARM_R0:
51+ return "r0";
52+ case PERF_REG_ARM_R1:
53+ return "r1";
54+ case PERF_REG_ARM_R2:
55+ return "r2";
56+ case PERF_REG_ARM_R3:
57+ return "r3";
58+ case PERF_REG_ARM_R4:
59+ return "r4";
60+ case PERF_REG_ARM_R5:
61+ return "r5";
62+ case PERF_REG_ARM_R6:
63+ return "r6";
64+ case PERF_REG_ARM_R7:
65+ return "r7";
66+ case PERF_REG_ARM_R8:
67+ return "r8";
68+ case PERF_REG_ARM_R9:
69+ return "r9";
70+ case PERF_REG_ARM_R10:
71+ return "r10";
72+ case PERF_REG_ARM_FP:
73+ return "fp";
74+ case PERF_REG_ARM_IP:
75+ return "ip";
76+ case PERF_REG_ARM_SP:
77+ return "sp";
78+ case PERF_REG_ARM_LR:
79+ return "lr";
80+ case PERF_REG_ARM_PC:
81+ return "pc";
82+ default:
83+ return NULL;
84+ }
85+
86+ return NULL;
87+}
88+
89+#endif /* ARCH_PERF_REGS_H */
90diff --git a/tools/perf/arch/arm/util/unwind.c b/tools/perf/arch/arm/util/unwind.c
91new file mode 100644
92index 0000000..da3dc95
93--- /dev/null
94+++ b/tools/perf/arch/arm/util/unwind.c
95@@ -0,0 +1,48 @@
96+
97+#include <errno.h>
98+#include <libunwind.h>
99+#include "perf_regs.h"
100+#include "../../util/unwind.h"
101+
102+int unwind__arch_reg_id(int regnum)
103+{
104+ switch (regnum) {
105+ case UNW_ARM_R0:
106+ return PERF_REG_ARM_R0;
107+ case UNW_ARM_R1:
108+ return PERF_REG_ARM_R1;
109+ case UNW_ARM_R2:
110+ return PERF_REG_ARM_R2;
111+ case UNW_ARM_R3:
112+ return PERF_REG_ARM_R3;
113+ case UNW_ARM_R4:
114+ return PERF_REG_ARM_R4;
115+ case UNW_ARM_R5:
116+ return PERF_REG_ARM_R5;
117+ case UNW_ARM_R6:
118+ return PERF_REG_ARM_R6;
119+ case UNW_ARM_R7:
120+ return PERF_REG_ARM_R7;
121+ case UNW_ARM_R8:
122+ return PERF_REG_ARM_R8;
123+ case UNW_ARM_R9:
124+ return PERF_REG_ARM_R9;
125+ case UNW_ARM_R10:
126+ return PERF_REG_ARM_R10;
127+ case UNW_ARM_R11:
128+ return PERF_REG_ARM_FP;
129+ case UNW_ARM_R12:
130+ return PERF_REG_ARM_IP;
131+ case UNW_ARM_R13:
132+ return PERF_REG_ARM_SP;
133+ case UNW_ARM_R14:
134+ return PERF_REG_ARM_LR;
135+ case UNW_ARM_R15:
136+ return PERF_REG_ARM_PC;
137+ default:
138+ pr_err("unwind: invalid reg id %d\n", regnum);
139+ return -EINVAL;
140+ }
141+
142+ return -EINVAL;
143+}
144diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
145index 5f6f9b3..4796ce5 100644
146--- a/tools/perf/config/Makefile
147+++ b/tools/perf/config/Makefile
148@@ -29,6 +29,10 @@ ifeq ($(ARCH),x86_64)
149 NO_PERF_REGS := 0
150 LIBUNWIND_LIBS = -lunwind -lunwind-x86_64
151 endif
152+ifeq ($(ARCH),arm)
153+ NO_PERF_REGS := 0
154+ LIBUNWIND_LIBS = -lunwind -lunwind-arm
155+endif
156
157 ifeq ($(NO_PERF_REGS),0)
158 CFLAGS += -DHAVE_PERF_REGS
159@@ -208,8 +212,7 @@ ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DLIBELF_MMAP),y)
160 endif # try-cc
161 endif # NO_LIBELF
162
163-# There's only x86 (both 32 and 64) support for CFI unwind so far
164-ifneq ($(ARCH),x86)
165+ifeq ($(LIBUNWIND_LIBS),)
166 NO_LIBUNWIND := 1
167 endif
168
169--
1701.9.1
171
diff --git a/meta-raspberrypi-extras/recipes/linux/linux-raspberrypi_3.12.26.bbappend b/meta-raspberrypi-extras/recipes/linux/linux-raspberrypi_3.12.26.bbappend
new file mode 100644
index 0000000..94b2ab1
--- /dev/null
+++ b/meta-raspberrypi-extras/recipes/linux/linux-raspberrypi_3.12.26.bbappend
@@ -0,0 +1,27 @@
1#############################################################################
2##
3## Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
4##
5## This file is part of the Qt Enterprise Embedded Scripts of the Qt
6## framework.
7##
8## $QT_BEGIN_LICENSE$
9## Commercial License Usage Only
10## Licensees holding valid commercial Qt license agreements with Digia
11## with an appropriate addendum covering the Qt Enterprise Embedded Scripts,
12## may use this file in accordance with the terms contained in said license
13## agreement.
14##
15## For further information use the contact form at
16## http://www.qt.io/contact-us.
17##
18##
19## $QT_END_LICENSE$
20##
21#############################################################################
22
23FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:${THISDIR}/../../../recipes/linux/linux:"
24SRC_URI += "\
25 file://ARM-perf-add-support-for-perf-registers-API.diff \
26 file://ARM-perf-wire-up-perf_regs-and-unwind-support-for-AR.patch \
27 "
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2025-05-13 01:10:25 +0000