linux-kernel - [PATCH 57/86] perf trace beauty fcntl: Beautify F_GETLEASE and F

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 19 Jul 2017 11:29:21 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        David Ahern <dsahern@...il.com>, Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Wang Nan <wangnan0@...wei.com>
Subject: [PATCH 57/86] perf trace beauty fcntl: Beautify F_GETLEASE and F_SETLEASE arg/return

From: Arnaldo Carvalho de Melo <acme@...hat.com>

One more looking prettier.

Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Wang Nan <wangnan0@...wei.com>
Link: http://lkml.kernel.org/n/tip-ytr7idkese8sjtvn5g60130e@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/trace/beauty/fcntl.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/tools/perf/trace/beauty/fcntl.c b/tools/perf/trace/beauty/fcntl.c
index d082fd2e594f..b6987c468d18 100644
--- a/tools/perf/trace/beauty/fcntl.c
+++ b/tools/perf/trace/beauty/fcntl.c
@@ -20,6 +20,19 @@ static size_t syscall_arg__scnprintf_fcntl_getfd(char *bf, size_t size, struct s
 	return fcntl__scnprintf_getfd(arg->val, bf, size);
 }
 
+static size_t fcntl__scnprintf_getlease(unsigned long val, char *bf, size_t size)
+{
+	static const char *fcntl_setlease[] = { "RDLCK", "WRLCK", "UNLCK", };
+	static DEFINE_STRARRAY(fcntl_setlease);
+
+	return strarray__scnprintf(&strarray__fcntl_setlease, bf, size, "%x", val);
+}
+
+static size_t syscall_arg__scnprintf_fcntl_getlease(char *bf, size_t size, struct syscall_arg *arg)
+{
+	return fcntl__scnprintf_getlease(arg->val, bf, size);
+}
+
 size_t syscall_arg__scnprintf_fcntl_cmd(char *bf, size_t size, struct syscall_arg *arg)
 {
 	if (arg->val == F_GETFL) {
@@ -38,11 +51,15 @@ size_t syscall_arg__scnprintf_fcntl_cmd(char *bf, size_t size, struct syscall_ar
 		syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_pid);
 		goto mask_arg;
 	}
+	if (arg->val == F_GETLEASE) {
+		syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fcntl_getlease);
+		goto mask_arg;
+	}
 	/*
 	 * Some commands ignore the third fcntl argument, "arg", so mask it
 	 */
 	if (arg->val == F_GET_SEALS ||
-	    arg->val == F_GETLEASE || arg->val == F_GETSIG) {
+	    arg->val == F_GETSIG) {
 mask_arg:
 		arg->mask |= (1 << 2);
 	}
@@ -62,6 +79,9 @@ size_t syscall_arg__scnprintf_fcntl_arg(char *bf, size_t size, struct syscall_ar
 
 	if (cmd == F_SETOWN)
 		return syscall_arg__scnprintf_pid(bf, size, arg);
+
+	if (cmd == F_SETLEASE)
+		return fcntl__scnprintf_getlease(arg->val, bf, size);
 	/*
 	 * We still don't grab the contents of pointers on entry or exit,
 	 * so just print them as hex numbers
-- 
2.9.4