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https://github.com/edk2-porting/linux-next.git
synced 2024-12-29 23:53:55 +08:00
c2e539d287
Now it will show 0 or CLOEXEC, the only !0 value returned by the kernel for fcntl(fd, F_GETFD). And for F_SETFD: 6870.267 ( 0.004 ms): make/29812 fcntl(fd: 7</home/acme/git/linux/tools/build/Build.include>, cmd: SETFD, arg: CLOEXEC) = 0 6873.805 ( 0.002 ms): make/29816 fcntl(fd: 6</home/acme/git/linux/tools/build/Makefile.build>, cmd: SETFD, arg: CLOEXEC) = 0 <SNIP> 77986.150 ( 0.006 ms): alsa-sink-ALC3/2042 fcntl(fd: 45</dev/snd/pcmC1D0p>, cmd: SETFD, arg: CLOEXEC) = 0 77986.271 ( 0.006 ms): alsa-sink-ALC3/2042 fcntl(fd: 23</dev/snd/controlC1>, cmd: SETFD, arg: CLOEXEC) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-sz9dob7t4zd6m65femazpaah@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/*
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* trace/beauty/fcntl.c
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*
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* Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
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*
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* Released under the GPL v2. (and only v2, not any later version)
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*/
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#include "trace/beauty/beauty.h"
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#include <linux/kernel.h>
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#include <uapi/linux/fcntl.h>
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static size_t fcntl__scnprintf_getfd(unsigned long val, char *bf, size_t size)
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{
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return scnprintf(bf, size, "%s", val ? "CLOEXEC" : "0");
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}
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size_t syscall_arg__scnprintf_fcntl_cmd(char *bf, size_t size, struct syscall_arg *arg)
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{
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if (arg->val == F_GETFL) {
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syscall_arg__set_ret_scnprintf(arg, open__scnprintf_flags);
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goto mask_arg;
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}
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if (arg->val == F_GETFD) {
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syscall_arg__set_ret_scnprintf(arg, fcntl__scnprintf_getfd);
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goto mask_arg;
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}
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/*
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* Some commands ignore the third fcntl argument, "arg", so mask it
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*/
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if (arg->val == F_GETOWN || arg->val == F_GET_SEALS ||
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arg->val == F_GETLEASE || arg->val == F_GETSIG) {
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mask_arg:
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arg->mask |= (1 << 2);
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}
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return syscall_arg__scnprintf_strarrays(bf, size, arg);
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}
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size_t syscall_arg__scnprintf_fcntl_arg(char *bf, size_t size, struct syscall_arg *arg)
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{
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int cmd = syscall_arg__val(arg, 1);
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if (cmd == F_SETFD)
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return fcntl__scnprintf_getfd(arg->val, bf, size);
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if (cmd == F_SETFL)
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return open__scnprintf_flags(arg->val, bf, size);
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/*
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* We still don't grab the contents of pointers on entry or exit,
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* so just print them as hex numbers
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*/
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if (cmd == F_SETLK || cmd == F_SETLKW || cmd == F_GETLK ||
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cmd == F_OFD_SETLK || cmd == F_OFD_SETLKW || cmd == F_OFD_GETLK ||
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cmd == F_GETOWN_EX || cmd == F_SETOWN_EX ||
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cmd == F_GET_RW_HINT || cmd == F_SET_RW_HINT ||
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cmd == F_GET_FILE_RW_HINT || cmd == F_SET_FILE_RW_HINT)
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return syscall_arg__scnprintf_hex(bf, size, arg);
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return syscall_arg__scnprintf_long(bf, size, arg);
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}
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