From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELvu3UM4eC3oJj2nQLIiR8n/ajtT+XOqkwTJPjID67ZYZIvaXq+BkE8CeSknNUVE/9L6P8Du ARC-Seal: i=1; a=rsa-sha256; t=1520498655; cv=none; d=google.com; s=arc-20160816; b=cMl1ckgvyoIh5XkrSPNTOhfgxo7+SvSAUJsWQbhvlfnE2eZgQVMkQmBknOf+irArqi QdJ1hWkr5gwfDmUHg0MDPExTXVZC620NSrS9TXWmza6z+pI8f9NqcXuJl1QdlEDe67jD GoiSXqHFU3umxvk5TmmtqFHsyamUpDJfzLCEVQQ4jin0SRhZiH1fTg/7NGtzLC0k9qqE K9z8dVQ0MRYWZdai5MBxcoYZssVW51qDqTKYLcB1qR2HNBgiTuFZl9ApE+1CbRYWKL0u K3zbHkQ8hbxjowNBqSHA3nwgtwM3u3pvOUdEURTsSbvOxhhDgr2iZBC1OMx56oaSTUGd sNwA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :user-agent:message-id:date:subject:cc:to:from:dmarc-filter :arc-authentication-results; bh=Ou2tdD6z0VFYoUd556i88VDqeEguS6Ns1MZRun1iYMo=; b=i5stc84N7KnKVGj8rCZJYylHOFYmtlqL3EoeHHqb6o3CvXt0akNMNhsnjH2yl+NH0r yn0Zh7AsL+s0Em3Jn/eX6+jkWoIeDQ+o1y03s5HeZfOo2/eUX63l5yBJFruypYb283sE MXtOTDRE5DVO27bNMXAHeHb2EEtDx6qUxaR4fq86F5pb1XIIHEp4UuapS2FutdkRS5b7 Xjuw2fK7qFpZ4vUGbWu7lRhUv1k1B1BQKzhDJTv7ojaOVDLa1wezqPnPuBebrNw+Sv+O FQW8mV8Q+wRjtoB9ZK2uFh/ghUibL6iyDzQ0vc5ARTffjknGC/gy5DC79FLVT/UzLfM+ KWLg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kselftest-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kselftest-owner@vger.kernel.org Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kselftest-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kselftest-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755335AbeCHIoB (ORCPT ); Thu, 8 Mar 2018 03:44:01 -0500 Received: from mail.kernel.org ([198.145.29.99]:49818 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755259AbeCHIoA (ORCPT ); Thu, 8 Mar 2018 03:44:00 -0500 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 581512133D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=mhiramat@kernel.org From: Masami Hiramatsu To: Steven Rostedt , linux-kernel@vger.kernel.org Cc: mhiramat@kernel.org, Ingo Molnar , Namhyung Kim , Tom Zanussi , Arnaldo Carvalho de Melo , linux-trace-users@vger.kernel.org, linux-kselftest@vger.kernel.org, shuah@kernel.org Subject: [PATCH v5 00/19] tracing: probeevent: Improve fetcharg features Date: Thu, 8 Mar 2018 17:43:29 +0900 Message-Id: <152049860385.7289.14079393589900496424.stgit@devbox> X-Mailer: git-send-email 2.13.6 User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kselftest-owner@vger.kernel.org X-Mailing-List: linux-kselftest@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1594358398189813474?= X-GMAIL-MSGID: =?utf-8?q?1594358398189813474?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Hi, This is the 5th version of the fetch-arg improvement series. This includes variable changes on fetcharg framework like, - Add fetcharg testcases (syntax, argN, symbol, string and array) and probepoint testcase. - Rewrite fetcharg framework with fetch_insn, switch-case based instead of function pointer. - Add "symbol" type support, which shows symbol+offset instead of address value. - Add "$argN" fetcharg, which fetches function parameters. (currently only for x86-64) - Add array type support (including string arrary :) ) , which enables to get fixed length array from probe-events. V4 is here: https://lkml.org/lkml/2018/2/27/913 Changes from the v4 is here: - [01/19] Add Namhyung's Ack. - [18/19] Fix patch description. (Thank you Namhyung!). BTW, this series is ported on the latest tip/master. Here are examples: o 'symbol' type # echo 'p vfs_read $stack0:symbol' > kprobe_events # echo 1 > events/kprobes/p_vfs_read_0/enable # tail -n 3 trace sh-729 [007] ...2 105.753637: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=SyS_read+0x42/0x90 tail-736 [000] ...2 105.754904: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=kernel_read+0x2c/0x40 tail-736 [000] ...2 105.754929: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=kernel_read+0x2c/0x40 o $argN # echo 'p vfs_read $arg0 $arg1 $arg2' > kprobe_events # echo 1 > events/kprobes/p_vfs_read_0/enable # tail -n 3 trace sh-726 [007] ...2 134.288973: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffff88001d98ec00 arg2=0x7ffeb4330f79 arg3=0x1 tail-731 [000] ...2 134.289987: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffff88001d9dd200 arg2=0xffff88001d8a0a00 arg3=0x80 tail-731 [000] ...2 134.290016: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffff88001d9dd200 arg2=0xffff88001faf4a00 arg3=0x150 o Array type # echo 'p vfs_read +0($stack):x64 +0($stack):x8[8]' > kprobe_events # echo 1 > events/kprobes/p_vfs_read_0/enable # tail -n 3 trace sh-729 [007] ...2 91.701664: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffffffff811b1252 arg2={0x52,0x12,0x1b,0x81,0xff,0xff,0xff,0xff} tail-734 [000] ...2 91.702366: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffffffff811b0dec arg2={0xec,0xd,0x1b,0x81,0xff,0xff,0xff,0xff} tail-734 [000] ...2 91.702386: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffffffff811b0dec arg2={0xec,0xd,0x1b,0x81,0xff,0xff,0xff,0xff} # # cat events/kprobes/p_vfs_read_0/format name: p_vfs_read_0 ID: 1069 format: field:unsigned short common_type; offset:0; size:2; signed:0; field:unsigned char common_flags; offset:2; size:1; signed:0; field:unsigned char common_preempt_count; offset:3; size:1; signed:0; field:int common_pid; offset:4; size:4; signed:1; field:unsigned long __probe_ip; offset:8; size:8; signed:0; field:u64 arg1; offset:16; size:0; signed:0; field:u8 arg2[8]; offset:24; size:8; signed:0; print fmt: "(%lx) arg1=0x%Lx arg2={0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x}", REC->__probe_ip, REC->arg1, REC->arg2[0], REC->arg2[1], REC->arg2[2], REC->arg2[3], REC->arg2[4], REC->arg2[5], REC->arg2[6], REC->arg2[7] o String Array type # echo "p create_trace_kprobe arg1=+0(%si):string[3]" > kprobe_events # echo test1 test2 test3 >> kprobe_events sh: write error: Invalid argument # echo 'p vfs_read $stack' >> kprobe_events # tail -n 2 trace sh-744 [007] ...1 183.382407: p_create_trace_kprobe_0: (create_trace_kprobe+0x0/0x890) arg1={"test1","test2","test3"} sh-744 [007] ...1 230.487809: p_create_trace_kprobe_0: (create_trace_kprobe+0x0/0x890) arg1={"p","vfs_read","$stack"} Thank you, --- Masami Hiramatsu (19): [BUGFIX] tracing: probeevent: Fix to support minus offset from symbol selftests: ftrace: Add probe event argument syntax testcase selftests: ftrace: Add a testcase for string type with kprobe_event selftests: ftrace: Add a testcase for probepoint tracing: probeevent: Cleanup print argument functions tracing: probeevent: Cleanup argument field definition tracing: probeevent: Remove NOKPROBE_SYMBOL from print functions tracing: probeevent: Introduce new argument fetching code tracing: probeevent: Unify fetch type tables tracing: probeevent: Return consumed bytes of dynamic area tracing: probeevent: Append traceprobe_ for exported function tracing: probeevent: Unify fetch_insn processing common part tracing: probeevent: Add symbol type x86: ptrace: Add function argument access API tracing: probeevent: Add $argN for accessing function args tracing: probeevent: Add array type support selftests: ftrace: Add a testcase for symbol type selftests: ftrace: Add a testcase for $argN with kprobe_event selftests: ftrace: Add a testcase for array type with kprobe_event Documentation/trace/kprobetrace.txt | 26 + arch/Kconfig | 7 arch/x86/Kconfig | 1 arch/x86/include/asm/ptrace.h | 38 + kernel/trace/trace.c | 9 kernel/trace/trace_kprobe.c | 366 ++++-------- kernel/trace/trace_probe.c | 628 +++++++++----------- kernel/trace/trace_probe.h | 284 +++------ kernel/trace/trace_probe_tmpl.h | 214 +++++++ kernel/trace/trace_uprobe.c | 168 ++--- .../ftrace/test.d/kprobe/kprobe_args_argN.tc | 25 + .../ftrace/test.d/kprobe/kprobe_args_array.tc | 92 +++ .../ftrace/test.d/kprobe/kprobe_args_string.tc | 46 + .../ftrace/test.d/kprobe/kprobe_args_symbol.tc | 77 ++ .../ftrace/test.d/kprobe/kprobe_args_syntax.tc | 97 +++ .../selftests/ftrace/test.d/kprobe/probepoint.tc | 43 + 16 files changed, 1230 insertions(+), 891 deletions(-) create mode 100644 kernel/trace/trace_probe_tmpl.h create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_argN.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_array.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_symbol.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/probepoint.tc -- Masami Hiramatsu (Linaro) From mboxrd@z Thu Jan 1 00:00:00 1970 From: mhiramat at kernel.org (Masami Hiramatsu) Date: Thu, 8 Mar 2018 17:43:29 +0900 Subject: [PATCH v5 00/19] tracing: probeevent: Improve fetcharg features Message-ID: <152049860385.7289.14079393589900496424.stgit@devbox> Hi, This is the 5th version of the fetch-arg improvement series. This includes variable changes on fetcharg framework like, - Add fetcharg testcases (syntax, argN, symbol, string and array) and probepoint testcase. - Rewrite fetcharg framework with fetch_insn, switch-case based instead of function pointer. - Add "symbol" type support, which shows symbol+offset instead of address value. - Add "$argN" fetcharg, which fetches function parameters. (currently only for x86-64) - Add array type support (including string arrary :) ) , which enables to get fixed length array from probe-events. V4 is here: https://lkml.org/lkml/2018/2/27/913 Changes from the v4 is here: - [01/19] Add Namhyung's Ack. - [18/19] Fix patch description. (Thank you Namhyung!). BTW, this series is ported on the latest tip/master. Here are examples: o 'symbol' type # echo 'p vfs_read $stack0:symbol' > kprobe_events # echo 1 > events/kprobes/p_vfs_read_0/enable # tail -n 3 trace sh-729 [007] ...2 105.753637: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=SyS_read+0x42/0x90 tail-736 [000] ...2 105.754904: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=kernel_read+0x2c/0x40 tail-736 [000] ...2 105.754929: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=kernel_read+0x2c/0x40 o $argN # echo 'p vfs_read $arg0 $arg1 $arg2' > kprobe_events # echo 1 > events/kprobes/p_vfs_read_0/enable # tail -n 3 trace sh-726 [007] ...2 134.288973: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffff88001d98ec00 arg2=0x7ffeb4330f79 arg3=0x1 tail-731 [000] ...2 134.289987: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffff88001d9dd200 arg2=0xffff88001d8a0a00 arg3=0x80 tail-731 [000] ...2 134.290016: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffff88001d9dd200 arg2=0xffff88001faf4a00 arg3=0x150 o Array type # echo 'p vfs_read +0($stack):x64 +0($stack):x8[8]' > kprobe_events # echo 1 > events/kprobes/p_vfs_read_0/enable # tail -n 3 trace sh-729 [007] ...2 91.701664: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffffffff811b1252 arg2={0x52,0x12,0x1b,0x81,0xff,0xff,0xff,0xff} tail-734 [000] ...2 91.702366: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffffffff811b0dec arg2={0xec,0xd,0x1b,0x81,0xff,0xff,0xff,0xff} tail-734 [000] ...2 91.702386: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffffffff811b0dec arg2={0xec,0xd,0x1b,0x81,0xff,0xff,0xff,0xff} # # cat events/kprobes/p_vfs_read_0/format name: p_vfs_read_0 ID: 1069 format: field:unsigned short common_type; offset:0; size:2; signed:0; field:unsigned char common_flags; offset:2; size:1; signed:0; field:unsigned char common_preempt_count; offset:3; size:1; signed:0; field:int common_pid; offset:4; size:4; signed:1; field:unsigned long __probe_ip; offset:8; size:8; signed:0; field:u64 arg1; offset:16; size:0; signed:0; field:u8 arg2[8]; offset:24; size:8; signed:0; print fmt: "(%lx) arg1=0x%Lx arg2={0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x}", REC->__probe_ip, REC->arg1, REC->arg2[0], REC->arg2[1], REC->arg2[2], REC->arg2[3], REC->arg2[4], REC->arg2[5], REC->arg2[6], REC->arg2[7] o String Array type # echo "p create_trace_kprobe arg1=+0(%si):string[3]" > kprobe_events # echo test1 test2 test3 >> kprobe_events sh: write error: Invalid argument # echo 'p vfs_read $stack' >> kprobe_events # tail -n 2 trace sh-744 [007] ...1 183.382407: p_create_trace_kprobe_0: (create_trace_kprobe+0x0/0x890) arg1={"test1","test2","test3"} sh-744 [007] ...1 230.487809: p_create_trace_kprobe_0: (create_trace_kprobe+0x0/0x890) arg1={"p","vfs_read","$stack"} Thank you, --- Masami Hiramatsu (19): [BUGFIX] tracing: probeevent: Fix to support minus offset from symbol selftests: ftrace: Add probe event argument syntax testcase selftests: ftrace: Add a testcase for string type with kprobe_event selftests: ftrace: Add a testcase for probepoint tracing: probeevent: Cleanup print argument functions tracing: probeevent: Cleanup argument field definition tracing: probeevent: Remove NOKPROBE_SYMBOL from print functions tracing: probeevent: Introduce new argument fetching code tracing: probeevent: Unify fetch type tables tracing: probeevent: Return consumed bytes of dynamic area tracing: probeevent: Append traceprobe_ for exported function tracing: probeevent: Unify fetch_insn processing common part tracing: probeevent: Add symbol type x86: ptrace: Add function argument access API tracing: probeevent: Add $argN for accessing function args tracing: probeevent: Add array type support selftests: ftrace: Add a testcase for symbol type selftests: ftrace: Add a testcase for $argN with kprobe_event selftests: ftrace: Add a testcase for array type with kprobe_event Documentation/trace/kprobetrace.txt | 26 + arch/Kconfig | 7 arch/x86/Kconfig | 1 arch/x86/include/asm/ptrace.h | 38 + kernel/trace/trace.c | 9 kernel/trace/trace_kprobe.c | 366 ++++-------- kernel/trace/trace_probe.c | 628 +++++++++----------- kernel/trace/trace_probe.h | 284 +++------ kernel/trace/trace_probe_tmpl.h | 214 +++++++ kernel/trace/trace_uprobe.c | 168 ++--- .../ftrace/test.d/kprobe/kprobe_args_argN.tc | 25 + .../ftrace/test.d/kprobe/kprobe_args_array.tc | 92 +++ .../ftrace/test.d/kprobe/kprobe_args_string.tc | 46 + .../ftrace/test.d/kprobe/kprobe_args_symbol.tc | 77 ++ .../ftrace/test.d/kprobe/kprobe_args_syntax.tc | 97 +++ .../selftests/ftrace/test.d/kprobe/probepoint.tc | 43 + 16 files changed, 1230 insertions(+), 891 deletions(-) create mode 100644 kernel/trace/trace_probe_tmpl.h create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_argN.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_array.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_symbol.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/probepoint.tc -- Masami Hiramatsu (Linaro) -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 From: mhiramat@kernel.org (Masami Hiramatsu) Date: Thu, 8 Mar 2018 17:43:29 +0900 Subject: [PATCH v5 00/19] tracing: probeevent: Improve fetcharg features Message-ID: <152049860385.7289.14079393589900496424.stgit@devbox> Content-Type: text/plain; charset="UTF-8" Message-ID: <20180308084329.zKIoGYU1Pmz_bhJRcXGwvUB7Pzh6zjFbGyrlUSmRUK0@z> Hi, This is the 5th version of the fetch-arg improvement series. This includes variable changes on fetcharg framework like, - Add fetcharg testcases (syntax, argN, symbol, string and array) and probepoint testcase. - Rewrite fetcharg framework with fetch_insn, switch-case based instead of function pointer. - Add "symbol" type support, which shows symbol+offset instead of address value. - Add "$argN" fetcharg, which fetches function parameters. (currently only for x86-64) - Add array type support (including string arrary :) ) , which enables to get fixed length array from probe-events. V4 is here: https://lkml.org/lkml/2018/2/27/913 Changes from the v4 is here: - [01/19] Add Namhyung's Ack. - [18/19] Fix patch description. (Thank you Namhyung!). BTW, this series is ported on the latest tip/master. Here are examples: o 'symbol' type # echo 'p vfs_read $stack0:symbol' > kprobe_events # echo 1 > events/kprobes/p_vfs_read_0/enable # tail -n 3 trace sh-729 [007] ...2 105.753637: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=SyS_read+0x42/0x90 tail-736 [000] ...2 105.754904: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=kernel_read+0x2c/0x40 tail-736 [000] ...2 105.754929: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=kernel_read+0x2c/0x40 o $argN # echo 'p vfs_read $arg0 $arg1 $arg2' > kprobe_events # echo 1 > events/kprobes/p_vfs_read_0/enable # tail -n 3 trace sh-726 [007] ...2 134.288973: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffff88001d98ec00 arg2=0x7ffeb4330f79 arg3=0x1 tail-731 [000] ...2 134.289987: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffff88001d9dd200 arg2=0xffff88001d8a0a00 arg3=0x80 tail-731 [000] ...2 134.290016: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffff88001d9dd200 arg2=0xffff88001faf4a00 arg3=0x150 o Array type # echo 'p vfs_read +0($stack):x64 +0($stack):x8[8]' > kprobe_events # echo 1 > events/kprobes/p_vfs_read_0/enable # tail -n 3 trace sh-729 [007] ...2 91.701664: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffffffff811b1252 arg2={0x52,0x12,0x1b,0x81,0xff,0xff,0xff,0xff} tail-734 [000] ...2 91.702366: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffffffff811b0dec arg2={0xec,0xd,0x1b,0x81,0xff,0xff,0xff,0xff} tail-734 [000] ...2 91.702386: p_vfs_read_0: (vfs_read+0x0/0x130) arg1=0xffffffff811b0dec arg2={0xec,0xd,0x1b,0x81,0xff,0xff,0xff,0xff} # # cat events/kprobes/p_vfs_read_0/format name: p_vfs_read_0 ID: 1069 format: field:unsigned short common_type; offset:0; size:2; signed:0; field:unsigned char common_flags; offset:2; size:1; signed:0; field:unsigned char common_preempt_count; offset:3; size:1; signed:0; field:int common_pid; offset:4; size:4; signed:1; field:unsigned long __probe_ip; offset:8; size:8; signed:0; field:u64 arg1; offset:16; size:0; signed:0; field:u8 arg2[8]; offset:24; size:8; signed:0; print fmt: "(%lx) arg1=0x%Lx arg2={0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x}", REC->__probe_ip, REC->arg1, REC->arg2[0], REC->arg2[1], REC->arg2[2], REC->arg2[3], REC->arg2[4], REC->arg2[5], REC->arg2[6], REC->arg2[7] o String Array type # echo "p create_trace_kprobe arg1=+0(%si):string[3]" > kprobe_events # echo test1 test2 test3 >> kprobe_events sh: write error: Invalid argument # echo 'p vfs_read $stack' >> kprobe_events # tail -n 2 trace sh-744 [007] ...1 183.382407: p_create_trace_kprobe_0: (create_trace_kprobe+0x0/0x890) arg1={"test1","test2","test3"} sh-744 [007] ...1 230.487809: p_create_trace_kprobe_0: (create_trace_kprobe+0x0/0x890) arg1={"p","vfs_read","$stack"} Thank you, --- Masami Hiramatsu (19): [BUGFIX] tracing: probeevent: Fix to support minus offset from symbol selftests: ftrace: Add probe event argument syntax testcase selftests: ftrace: Add a testcase for string type with kprobe_event selftests: ftrace: Add a testcase for probepoint tracing: probeevent: Cleanup print argument functions tracing: probeevent: Cleanup argument field definition tracing: probeevent: Remove NOKPROBE_SYMBOL from print functions tracing: probeevent: Introduce new argument fetching code tracing: probeevent: Unify fetch type tables tracing: probeevent: Return consumed bytes of dynamic area tracing: probeevent: Append traceprobe_ for exported function tracing: probeevent: Unify fetch_insn processing common part tracing: probeevent: Add symbol type x86: ptrace: Add function argument access API tracing: probeevent: Add $argN for accessing function args tracing: probeevent: Add array type support selftests: ftrace: Add a testcase for symbol type selftests: ftrace: Add a testcase for $argN with kprobe_event selftests: ftrace: Add a testcase for array type with kprobe_event Documentation/trace/kprobetrace.txt | 26 + arch/Kconfig | 7 arch/x86/Kconfig | 1 arch/x86/include/asm/ptrace.h | 38 + kernel/trace/trace.c | 9 kernel/trace/trace_kprobe.c | 366 ++++-------- kernel/trace/trace_probe.c | 628 +++++++++----------- kernel/trace/trace_probe.h | 284 +++------ kernel/trace/trace_probe_tmpl.h | 214 +++++++ kernel/trace/trace_uprobe.c | 168 ++--- .../ftrace/test.d/kprobe/kprobe_args_argN.tc | 25 + .../ftrace/test.d/kprobe/kprobe_args_array.tc | 92 +++ .../ftrace/test.d/kprobe/kprobe_args_string.tc | 46 + .../ftrace/test.d/kprobe/kprobe_args_symbol.tc | 77 ++ .../ftrace/test.d/kprobe/kprobe_args_syntax.tc | 97 +++ .../selftests/ftrace/test.d/kprobe/probepoint.tc | 43 + 16 files changed, 1230 insertions(+), 891 deletions(-) create mode 100644 kernel/trace/trace_probe_tmpl.h create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_argN.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_array.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_symbol.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/probepoint.tc -- Masami Hiramatsu (Linaro) -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html