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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/perf/trace/beauty/fcntl.c | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/perf/trace/beauty/fcntl.c')
-rw-r--r-- | tools/perf/trace/beauty/fcntl.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/tools/perf/trace/beauty/fcntl.c b/tools/perf/trace/beauty/fcntl.c new file mode 100644 index 000000000..56ef83b3d --- /dev/null +++ b/tools/perf/trace/beauty/fcntl.c @@ -0,0 +1,101 @@ +// SPDX-License-Identifier: LGPL-2.1 +/* + * trace/beauty/fcntl.c + * + * Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> + */ + +#include "trace/beauty/beauty.h" +#include <linux/kernel.h> +#include <uapi/linux/fcntl.h> + +static size_t fcntl__scnprintf_getfd(unsigned long val, char *bf, size_t size, bool show_prefix) +{ + return val ? scnprintf(bf, size, "%s", "0") : + scnprintf(bf, size, "%s%s", show_prefix ? "FD_" : "", "CLOEXEC"); +} + +static size_t syscall_arg__scnprintf_fcntl_getfd(char *bf, size_t size, struct syscall_arg *arg) +{ + return fcntl__scnprintf_getfd(arg->val, bf, size, arg->show_string_prefix); +} + +static size_t fcntl__scnprintf_getlease(unsigned long val, char *bf, size_t size, bool show_prefix) +{ + static const char *fcntl_setlease[] = { "RDLCK", "WRLCK", "UNLCK", }; + static DEFINE_STRARRAY(fcntl_setlease, "F_"); + + return strarray__scnprintf(&strarray__fcntl_setlease, bf, size, "%x", show_prefix, 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, arg->show_string_prefix); +} + +size_t syscall_arg__scnprintf_fcntl_cmd(char *bf, size_t size, struct syscall_arg *arg) +{ + if (arg->val == F_GETFL) { + syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_open_flags); + goto mask_arg; + } + if (arg->val == F_GETFD) { + syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fcntl_getfd); + goto mask_arg; + } + if (arg->val == F_DUPFD_CLOEXEC || arg->val == F_DUPFD) { + syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fd); + goto out; + } + if (arg->val == F_GETOWN) { + 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_GETSIG) { +mask_arg: + arg->mask |= (1 << 2); + } +out: + return syscall_arg__scnprintf_strarrays(bf, size, arg); +} + +size_t syscall_arg__scnprintf_fcntl_arg(char *bf, size_t size, struct syscall_arg *arg) +{ + bool show_prefix = arg->show_string_prefix; + int cmd = syscall_arg__val(arg, 1); + + if (cmd == F_DUPFD) + return syscall_arg__scnprintf_fd(bf, size, arg); + + if (cmd == F_SETFD) + return fcntl__scnprintf_getfd(arg->val, bf, size, show_prefix); + + if (cmd == F_SETFL) + return open__scnprintf_flags(arg->val, bf, size, show_prefix); + + if (cmd == F_SETOWN) + return syscall_arg__scnprintf_pid(bf, size, arg); + + if (cmd == F_SETLEASE) + return fcntl__scnprintf_getlease(arg->val, bf, size, show_prefix); + /* + * We still don't grab the contents of pointers on entry or exit, + * so just print them as hex numbers + */ + if (cmd == F_SETLK || cmd == F_SETLKW || cmd == F_GETLK || + cmd == F_OFD_SETLK || cmd == F_OFD_SETLKW || cmd == F_OFD_GETLK || + cmd == F_GETOWN_EX || cmd == F_SETOWN_EX || + cmd == F_GET_RW_HINT || cmd == F_SET_RW_HINT || + cmd == F_GET_FILE_RW_HINT || cmd == F_SET_FILE_RW_HINT) + return syscall_arg__scnprintf_hex(bf, size, arg); + + return syscall_arg__scnprintf_long(bf, size, arg); +} |