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authorMao Han <han_mao@c-sky.com>2019-06-26 14:52:19 +0800
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-07-01 22:50:41 -0300
commitaa23aa55166c2865ac430168c4b9d405cf8c6980 (patch)
tree900d9ede728282220bf39faf7dcee2b0b0126ee3
parentperf stat: Fix metrics with --no-merge (diff)
downloadlinux-dev-aa23aa55166c2865ac430168c4b9d405cf8c6980.tar.xz
linux-dev-aa23aa55166c2865ac430168c4b9d405cf8c6980.zip
perf annotate: Add csky support
This patch add basic arch initialization and instruction associate support for the csky CPU architecture. E.g.: $ perf annotate --stdio2 Samples: 161 of event 'cpu-clock:pppH', 4000 Hz, Event count (approx.): 40250000, [percent: local period] test_4() /usr/lib/perf-test/callchain_test Percent Disassembly of section .text: 00008420 <test_4>: test_4(): subi sp, sp, 4 st.w r8, (sp, 0x0) mov r8, sp subi sp, sp, 8 subi r3, r8, 4 movi r2, 0 st.w r2, (r3, 0x0) ↓ br 2e 100.00 14: subi r3, r8, 4 ld.w r2, (r3, 0x0) subi r3, r8, 8 st.w r2, (r3, 0x0) subi r3, r8, 4 ld.w r3, (r3, 0x0) addi r2, r3, 1 subi r3, r8, 4 st.w r2, (r3, 0x0) 2e: subi r3, r8, 4 ld.w r2, (r3, 0x0) lrw r3, 0x98967f // 8598 <main+0x28> cmplt r3, r2 ↑ bf 14 mov r0, r0 mov r0, r0 mov sp, r8 ld.w r8, (sp, 0x0) addi sp, sp, 4 ← rts Signed-off-by: Mao Han <han_mao@c-sky.com> Acked-by: Guo Ren <guoren@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linux-csky@vger.kernel.org Link: http://lkml.kernel.org/r/d874d7782d9acdad5d98f2f5c4a6fb26fbe41c5d.1561531557.git.han_mao@c-sky.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/arch/csky/annotate/instructions.c48
-rw-r--r--tools/perf/util/annotate.c5
2 files changed, 53 insertions, 0 deletions
diff --git a/tools/perf/arch/csky/annotate/instructions.c b/tools/perf/arch/csky/annotate/instructions.c
new file mode 100644
index 000000000000..5337bfb7d5fc
--- /dev/null
+++ b/tools/perf/arch/csky/annotate/instructions.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd.
+
+#include <linux/compiler.h>
+
+static struct ins_ops *csky__associate_ins_ops(struct arch *arch,
+ const char *name)
+{
+ struct ins_ops *ops = NULL;
+
+ /* catch all kind of jumps */
+ if (!strcmp(name, "bt") ||
+ !strcmp(name, "bf") ||
+ !strcmp(name, "bez") ||
+ !strcmp(name, "bnez") ||
+ !strcmp(name, "bnezad") ||
+ !strcmp(name, "bhsz") ||
+ !strcmp(name, "bhz") ||
+ !strcmp(name, "blsz") ||
+ !strcmp(name, "blz") ||
+ !strcmp(name, "br") ||
+ !strcmp(name, "jmpi") ||
+ !strcmp(name, "jmp"))
+ ops = &jump_ops;
+
+ /* catch function call */
+ if (!strcmp(name, "bsr") ||
+ !strcmp(name, "jsri") ||
+ !strcmp(name, "jsr"))
+ ops = &call_ops;
+
+ /* catch function return */
+ if (!strcmp(name, "rts"))
+ ops = &ret_ops;
+
+ if (ops)
+ arch__associate_ins_ops(arch, name, ops);
+ return ops;
+}
+
+static int csky__annotate_init(struct arch *arch, char *cpuid __maybe_unused)
+{
+ arch->initialized = true;
+ arch->objdump.comment_char = '/';
+ arch->associate_instruction_ops = csky__associate_ins_ops;
+
+ return 0;
+}
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 2d08c4b62c63..ec7aaf31c2b2 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -145,6 +145,7 @@ static int arch__associate_ins_ops(struct arch* arch, const char *name, struct i
#include "arch/arc/annotate/instructions.c"
#include "arch/arm/annotate/instructions.c"
#include "arch/arm64/annotate/instructions.c"
+#include "arch/csky/annotate/instructions.c"
#include "arch/x86/annotate/instructions.c"
#include "arch/powerpc/annotate/instructions.c"
#include "arch/s390/annotate/instructions.c"
@@ -164,6 +165,10 @@ static struct arch architectures[] = {
.init = arm64__annotate_init,
},
{
+ .name = "csky",
+ .init = csky__annotate_init,
+ },
+ {
.name = "x86",
.init = x86__annotate_init,
.instructions = x86__instructions,