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Date: Wed, 24 Apr 2024 11:09:48 -0700
From: Ian Rogers <irogers@...gle.com>
To: Namhyung Kim <namhyung@...nel.org>
Cc: Arnaldo Carvalho de Melo <acme@...nel.org>, Kan Liang <kan.liang@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>, Adrian Hunter <adrian.hunter@...el.com>,
Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...nel.org>,
LKML <linux-kernel@...r.kernel.org>, linux-perf-users@...r.kernel.org
Subject: Re: [PATCH] perf test: Add a new test for perf annotate
On Tue, Apr 23, 2024 at 5:12 PM Namhyung Kim <namhyung@...nel.org> wrote:
>
> Add a basic perf annotate test
>
> $ ./perf test annotate -vv
> 76: perf annotate basic tests:
> --- start ---
> test child forked, pid 846989
> fbcd0-fbd55 l noploop
> perf does have symbol 'noploop'
> Basic perf annotate test
> : 0 0xfbcd0 <noploop>:
> 0.00 : fbcd0: pushq %rbp
> 0.00 : fbcd1: movq %rsp, %rbp
> 0.00 : fbcd4: pushq %r12
> 0.00 : fbcd6: pushq %rbx
> 0.00 : fbcd7: movl $1, %ebx
> 0.00 : fbcdc: subq $0x10, %rsp
> 0.00 : fbce0: movq %fs:0x28, %rax
> 0.00 : fbce9: movq %rax, -0x18(%rbp)
> 0.00 : fbced: xorl %eax, %eax
> 0.00 : fbcef: testl %edi, %edi
> 0.00 : fbcf1: jle 0xfbd04
> 0.00 : fbcf3: movq (%rsi), %rdi
> 0.00 : fbcf6: movl $0xa, %edx
> 0.00 : fbcfb: xorl %esi, %esi
> 0.00 : fbcfd: callq 0x41920
> 0.00 : fbd02: movl %eax, %ebx
> 0.00 : fbd04: leaq -0x7b(%rip), %r12 # fbc90 <sighandler>
> 0.00 : fbd0b: movl $2, %edi
> 0.00 : fbd10: movq %r12, %rsi
> 0.00 : fbd13: callq 0x40a00
> 0.00 : fbd18: movl $0xe, %edi
> 0.00 : fbd1d: movq %r12, %rsi
> 0.00 : fbd20: callq 0x40a00
> 0.00 : fbd25: movl %ebx, %edi
> 0.00 : fbd27: callq 0x407c0
> 0.10 : fbd2c: movl 0x89785e(%rip), %eax # 993590 <done>
> 0.00 : fbd32: testl %eax, %eax
> 99.90 : fbd34: je 0xfbd2c
> 0.00 : fbd36: movq -0x18(%rbp), %rax
> 0.00 : fbd3a: subq %fs:0x28, %rax
> 0.00 : fbd43: jne 0xfbd50
> 0.00 : fbd45: addq $0x10, %rsp
> 0.00 : fbd49: xorl %eax, %eax
> 0.00 : fbd4b: popq %rbx
> 0.00 : fbd4c: popq %r12
> 0.00 : fbd4e: popq %rbp
> 0.00 : fbd4f: retq
> 0.00 : fbd50: callq 0x407e0
> 0.00 : fbcd0: pushq %rbp
> 0.00 : fbcd1: movq %rsp, %rbp
> 0.00 : fbcd4: pushq %r12
> 0.00 : fbcd0: push %rbp
> 0.00 : fbcd1: mov %rsp,%rbp
> 0.00 : fbcd4: push %r12
> Basic annotate test [Success]
> ---- end(0) ----
> 76: perf annotate basic tests : Ok
>
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Looks good, thanks for this!
Reviewed-by: Ian Rogers <irogers@...gle.com>
Thanks,
Ian
> ---
> tools/perf/tests/shell/annotate.sh | 83 ++++++++++++++++++++++++++++++
> 1 file changed, 83 insertions(+)
> create mode 100755 tools/perf/tests/shell/annotate.sh
>
> diff --git a/tools/perf/tests/shell/annotate.sh b/tools/perf/tests/shell/annotate.sh
> new file mode 100755
> index 000000000000..7820d13eebae
> --- /dev/null
> +++ b/tools/perf/tests/shell/annotate.sh
> @@ -0,0 +1,83 @@
> +#!/bin/sh
> +# perf annotate basic tests
> +# SPDX-License-Identifier: GPL-2.0
> +
> +set -e
> +
> +shelldir=$(dirname "$0")
> +
> +# shellcheck source=lib/perf_has_symbol.sh
> +. "${shelldir}"/lib/perf_has_symbol.sh
> +
> +testsym="noploop"
> +
> +skip_test_missing_symbol ${testsym}
> +
> +err=0
> +perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
> +testprog="perf test -w noploop"
> +# disassembly format: "percent : offset: instruction (operands ...)"
> +disasm_regex="[0-9]*\.[0-9]* *: *\w*: *\w*"
> +
> +cleanup() {
> + rm -rf "${perfdata}"
> + rm -rf "${perfdata}".old
> +
> + trap - EXIT TERM INT
> +}
> +
> +trap_cleanup() {
> + cleanup
> + exit 1
> +}
> +trap trap_cleanup EXIT TERM INT
> +
> +test_basic() {
> + echo "Basic perf annotate test"
> + if ! perf record -o "${perfdata}" ${testprog} 2> /dev/null
> + then
> + echo "Basic annotate [Failed record]"
> + err=1
> + return
> + fi
> +
> + # check if it has the target symbol
> + if ! perf annotate -i "${perfdata}" 2> /dev/null | grep "${testsym}"
> + then
> + echo "Basic annotate [Failed missing symbol]"
> + err=1
> + return
> + fi
> +
> + # check if it has the disassembly lines
> + if ! perf annotate -i "${perfdata}" 2> /dev/null | grep "${disasm_regex}"
> + then
> + echo "Basic annotate [Failed missing disasm output]"
> + err=1
> + return
> + fi
> +
> + # check again with a target symbol name
> + if ! perf annotate -i "${perfdata}" "${testsym}" 2> /dev/null | \
> + grep -m 3 "${disasm_regex}"
> + then
> + echo "Basic annotate [Failed missing disasm output]"
> + err=1
> + return
> + fi
> +
> + # check one more with external objdump tool (forced by --objdump option)
> + if ! perf annotate -i "${perfdata}" --objdump=objdump 2> /dev/null | \
> + grep -m 3 "${disasm_regex}"
> + then
> + echo "Basic annotate [Failed missing disasm output from objdump]"
> + err=1
> + return
> + fi
> + echo "Basic annotate test [Success]"
> +}
> +
> +test_basic
> +
> +cleanup
> +exit $err
> --
> 2.44.0.769.g3c40516874-goog
>
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