255 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			255 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* SPDX-License-Identifier: GPL-2.0 */
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| #ifndef _PERF_TRACE_BEAUTY_H
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| #define _PERF_TRACE_BEAUTY_H
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| 
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| #include <linux/kernel.h>
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| #include <linux/types.h>
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| #include <sys/types.h>
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| #include <stdbool.h>
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| 
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| struct strarray {
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| 	u64	    offset;
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| 	int	    nr_entries;
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| 	const char *prefix;
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| 	const char **entries;
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| };
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| 
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| #define DEFINE_STRARRAY(array, _prefix) struct strarray strarray__##array = { \
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| 	.nr_entries = ARRAY_SIZE(array), \
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| 	.entries = array, \
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| 	.prefix = _prefix, \
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| }
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| 
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| #define DEFINE_STRARRAY_OFFSET(array, _prefix, off) struct strarray strarray__##array = { \
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| 	.offset	    = off, \
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| 	.nr_entries = ARRAY_SIZE(array), \
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| 	.entries = array, \
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| 	.prefix = _prefix, \
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| }
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| 
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| size_t strarray__scnprintf(struct strarray *sa, char *bf, size_t size, const char *intfmt, bool show_prefix, int val);
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| size_t strarray__scnprintf_suffix(struct strarray *sa, char *bf, size_t size, const char *intfmt, bool show_suffix, int val);
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| size_t strarray__scnprintf_flags(struct strarray *sa, char *bf, size_t size, bool show_prefix, unsigned long flags);
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| 
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| bool strarray__strtoul(struct strarray *sa, char *bf, size_t size, u64 *ret);
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| bool strarray__strtoul_flags(struct strarray *sa, char *bf, size_t size, u64 *ret);
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| 
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| struct trace;
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| struct thread;
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| 
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| struct file {
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| 	char *pathname;
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| 	int  dev_maj;
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| };
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| 
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| struct file *thread__files_entry(struct thread *thread, int fd);
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| 
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| struct strarrays {
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| 	int		nr_entries;
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| 	struct strarray **entries;
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| };
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| 
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| #define DEFINE_STRARRAYS(array) struct strarrays strarrays__##array = { \
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| 	.nr_entries = ARRAY_SIZE(array), \
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| 	.entries = array, \
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| }
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| 
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| size_t strarrays__scnprintf(struct strarrays *sas, char *bf, size_t size, const char *intfmt, bool show_prefix, int val);
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| 
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| bool strarrays__strtoul(struct strarrays *sas, char *bf, size_t size, u64 *ret);
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| 
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| size_t pid__scnprintf_fd(struct trace *trace, pid_t pid, int fd, char *bf, size_t size);
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| 
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| extern struct strarray strarray__socket_families;
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| 
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| extern struct strarray strarray__socket_level;
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| 
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| /**
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|  * augmented_arg: extra payload for syscall pointer arguments
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|  
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|  * If perf_sample->raw_size is more than what a syscall sys_enter_FOO puts,
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|  * then its the arguments contents, so that we can show more than just a
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|  * pointer. This will be done initially with eBPF, the start of that is at the
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|  * tools/perf/examples/bpf/augmented_syscalls.c example for the openat, but
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|  * will eventually be done automagically caching the running kernel tracefs
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|  * events data into an eBPF C script, that then gets compiled and its .o file
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|  * cached for subsequent use. For char pointers like the ones for 'open' like
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|  * syscalls its easy, for the rest we should use DWARF or better, BTF, much
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|  * more compact.
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|  *
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|  * @size: 8 if all we need is an integer, otherwise all of the augmented arg.
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|  * @int_arg: will be used for integer like pointer contents, like 'accept's 'upeer_addrlen'
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|  * @value: u64 aligned, for structs, pathnames
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|  */
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| struct augmented_arg {
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| 	int  size;
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| 	int  int_arg;
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| 	u64  value[];
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| };
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| 
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| struct syscall_arg_fmt;
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| 
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| /**
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|  * @val: value of syscall argument being formatted
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|  * @len: for tracepoint dynamic arrays, if fmt->nr_entries == 0, then its not a fixed array, look at arg->len
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|  * @args: All the args, use syscall_args__val(arg, nth) to access one
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|  * @augmented_args: Extra data that can be collected, for instance, with eBPF for expanding the pathname for open, etc
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|  * @augmented_args_size: augmented_args total payload size
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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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|  * @show_string_prefix: When there is a common prefix in a string table, show it or not
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|  */
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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 syscall_arg_fmt *fmt;
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| 	struct {
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| 		struct augmented_arg *args;
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| 		int		     size;
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| 	} augmented;
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| 	struct thread *thread;
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| 	struct trace  *trace;
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| 	void	      *parm;
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| 	u16	      len;
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| 	u8	      idx;
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| 	u8	      mask;
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| 	bool	      show_string_prefix;
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| };
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| 
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| unsigned long syscall_arg__val(struct syscall_arg *arg, u8 idx);
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| 
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| size_t syscall_arg__scnprintf_strarray_flags(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_STRARRAY_FLAGS syscall_arg__scnprintf_strarray_flags
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| 
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| bool syscall_arg__strtoul_strarray(char *bf, size_t size, struct syscall_arg *arg, u64 *ret);
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| #define STUL_STRARRAY syscall_arg__strtoul_strarray
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| 
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| bool syscall_arg__strtoul_strarray_flags(char *bf, size_t size, struct syscall_arg *arg, u64 *ret);
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| #define STUL_STRARRAY_FLAGS syscall_arg__strtoul_strarray_flags
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| 
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| bool syscall_arg__strtoul_strarrays(char *bf, size_t size, struct syscall_arg *arg, u64 *ret);
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| #define STUL_STRARRAYS syscall_arg__strtoul_strarrays
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| 
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| size_t syscall_arg__scnprintf_x86_irq_vectors(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_X86_IRQ_VECTORS syscall_arg__scnprintf_x86_irq_vectors
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| 
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| bool syscall_arg__strtoul_x86_irq_vectors(char *bf, size_t size, struct syscall_arg *arg, u64 *ret);
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| #define STUL_X86_IRQ_VECTORS syscall_arg__strtoul_x86_irq_vectors
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| 
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| size_t syscall_arg__scnprintf_x86_MSR(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_X86_MSR syscall_arg__scnprintf_x86_MSR
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| 
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| bool syscall_arg__strtoul_x86_MSR(char *bf, size_t size, struct syscall_arg *arg, u64 *ret);
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| #define STUL_X86_MSR syscall_arg__strtoul_x86_MSR
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| 
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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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| 
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| size_t syscall_arg__scnprintf_fd(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_FD syscall_arg__scnprintf_fd
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| 
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| size_t syscall_arg__scnprintf_hex(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_HEX syscall_arg__scnprintf_hex
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| 
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| size_t syscall_arg__scnprintf_ptr(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_PTR syscall_arg__scnprintf_ptr
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| 
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| size_t syscall_arg__scnprintf_int(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_INT syscall_arg__scnprintf_int
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| 
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| size_t syscall_arg__scnprintf_long(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_LONG syscall_arg__scnprintf_long
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| 
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| size_t syscall_arg__scnprintf_pid(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_PID syscall_arg__scnprintf_pid
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| 
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| size_t syscall_arg__scnprintf_clone_flags(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_CLONE_FLAGS syscall_arg__scnprintf_clone_flags
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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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| #define SCA_FCNTL_CMD syscall_arg__scnprintf_fcntl_cmd
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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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| #define SCA_FCNTL_ARG syscall_arg__scnprintf_fcntl_arg
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| 
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| size_t syscall_arg__scnprintf_flock(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_FLOCK syscall_arg__scnprintf_flock
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| 
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| size_t syscall_arg__scnprintf_fsmount_attr_flags(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_FSMOUNT_ATTR_FLAGS syscall_arg__scnprintf_fsmount_attr_flags
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| 
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| size_t syscall_arg__scnprintf_fspick_flags(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_FSPICK_FLAGS syscall_arg__scnprintf_fspick_flags
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| 
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| size_t syscall_arg__scnprintf_ioctl_cmd(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_IOCTL_CMD syscall_arg__scnprintf_ioctl_cmd
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| 
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| size_t syscall_arg__scnprintf_kcmp_type(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_KCMP_TYPE syscall_arg__scnprintf_kcmp_type
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| 
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| size_t syscall_arg__scnprintf_kcmp_idx(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_KCMP_IDX syscall_arg__scnprintf_kcmp_idx
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| 
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| unsigned long syscall_arg__mask_val_mount_flags(struct syscall_arg *arg, unsigned long flags);
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| #define SCAMV_MOUNT_FLAGS syscall_arg__mask_val_mount_flags
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| 
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| size_t syscall_arg__scnprintf_mount_flags(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_MOUNT_FLAGS syscall_arg__scnprintf_mount_flags
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| 
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| size_t syscall_arg__scnprintf_move_mount_flags(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_MOVE_MOUNT_FLAGS syscall_arg__scnprintf_move_mount_flags
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| 
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| size_t syscall_arg__scnprintf_pkey_alloc_access_rights(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_PKEY_ALLOC_ACCESS_RIGHTS syscall_arg__scnprintf_pkey_alloc_access_rights
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| 
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| size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_OPEN_FLAGS syscall_arg__scnprintf_open_flags
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| 
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| size_t syscall_arg__scnprintf_x86_arch_prctl_code(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_X86_ARCH_PRCTL_CODE syscall_arg__scnprintf_x86_arch_prctl_code
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| 
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| size_t syscall_arg__scnprintf_prctl_option(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_PRCTL_OPTION syscall_arg__scnprintf_prctl_option
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| 
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| extern struct strarray strarray__prctl_options;
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| 
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| size_t syscall_arg__scnprintf_prctl_arg2(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_PRCTL_ARG2 syscall_arg__scnprintf_prctl_arg2
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| 
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| size_t syscall_arg__scnprintf_prctl_arg3(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_PRCTL_ARG3 syscall_arg__scnprintf_prctl_arg3
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| 
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| size_t syscall_arg__scnprintf_renameat2_flags(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_RENAMEAT2_FLAGS syscall_arg__scnprintf_renameat2_flags
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| 
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| size_t syscall_arg__scnprintf_sockaddr(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_SOCKADDR syscall_arg__scnprintf_sockaddr
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| 
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| size_t syscall_arg__scnprintf_socket_protocol(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_SK_PROTO syscall_arg__scnprintf_socket_protocol
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| 
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| size_t syscall_arg__scnprintf_socket_level(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_SK_LEVEL syscall_arg__scnprintf_socket_level
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| 
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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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| 
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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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| 
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| size_t syscall_arg__scnprintf_sync_file_range_flags(char *bf, size_t size, struct syscall_arg *arg);
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| #define SCA_SYNC_FILE_RANGE_FLAGS syscall_arg__scnprintf_sync_file_range_flags
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| 
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| size_t open__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix);
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| 
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| void syscall_arg__set_ret_scnprintf(struct syscall_arg *arg,
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| 				    size_t (*ret_scnprintf)(char *bf, size_t size, struct syscall_arg *arg));
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| 
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| const char *arch_syscalls__strerrno(const char *arch, int err);
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| 
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| #endif /* _PERF_TRACE_BEAUTY_H */
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