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f9f83b3344
For instance, fcntl's upcoming 'arg' formatter needs to look at the 'cmd' value to decide how to format its value, sometimes it is a file flags, sometimes an fd, a pointer to a structure, etc. 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-2tw2jfaqm48dtw8a4addghze@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
#ifndef _PERF_TRACE_BEAUTY_H
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#define _PERF_TRACE_BEAUTY_H
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#include <linux/types.h>
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struct trace;
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struct thread;
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/**
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* @val: value of syscall argument being formatted
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* @args: All the args, use syscall_args__val(arg, nth) to access one
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* @thread: tid state (maps, pid, tid, etc)
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* @trace: 'perf trace' internals: all threads, etc
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* @parm: private area, may be an strarray, for instance
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* @idx: syscall arg idx (is this the first?)
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* @mask: a syscall arg may mask another arg, see syscall_arg__scnprintf_futex_op
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*/
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struct syscall_arg {
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unsigned long val;
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unsigned char *args;
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struct thread *thread;
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struct trace *trace;
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void *parm;
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u8 idx;
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u8 mask;
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};
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unsigned long syscall_arg__val(struct syscall_arg *arg, u8 idx);
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size_t syscall_arg__scnprintf_strarrays(char *bf, size_t size, struct syscall_arg *arg);
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#define SCA_STRARRAYS syscall_arg__scnprintf_strarrays
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size_t syscall_arg__scnprintf_fcntl_cmd(char *bf, size_t size, struct syscall_arg *arg);
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#define SCA_FCNTL_CMD syscall_arg__scnprintf_fcntl_cmd
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size_t syscall_arg__scnprintf_statx_flags(char *bf, size_t size, struct syscall_arg *arg);
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#define SCA_STATX_FLAGS syscall_arg__scnprintf_statx_flags
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size_t syscall_arg__scnprintf_statx_mask(char *bf, size_t size, struct syscall_arg *arg);
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#define SCA_STATX_MASK syscall_arg__scnprintf_statx_mask
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#endif /* _PERF_TRACE_BEAUTY_H */
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