diff options
| author | Mao Han <han_mao@c-sky.com> | 2019-06-26 14:52:19 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-07-01 22:50:41 -0300 |
| commit | aa23aa55166c2865ac430168c4b9d405cf8c6980 (patch) | |
| tree | 900d9ede728282220bf39faf7dcee2b0b0126ee3 /tools/perf | |
| parent | e3a9427323a53ceee540276a74af7706f350d052 (diff) | |
| download | linux-aa23aa55166c2865ac430168c4b9d405cf8c6980.tar.bz2 | |
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>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/arch/csky/annotate/instructions.c | 48 | ||||
| -rw-r--r-- | tools/perf/util/annotate.c | 5 |
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, |