tools/perf/trace/beauty/mode_t.c

Source file repositories/reference/linux-study-clean/tools/perf/trace/beauty/mode_t.c

File Facts

System
Linux kernel
Corpus path
tools/perf/trace/beauty/mode_t.c
Extension
.c
Size
1538 bytes
Lines
72
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: LGPL-2.1
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>

/* From include/linux/stat.h */
#ifndef S_IRWXUGO
#define S_IRWXUGO	(S_IRWXU|S_IRWXG|S_IRWXO)
#endif
#ifndef S_IALLUGO
#define S_IALLUGO	(S_ISUID|S_ISGID|S_ISVTX|S_IRWXUGO)
#endif
#ifndef S_IRUGO
#define S_IRUGO         (S_IRUSR|S_IRGRP|S_IROTH)
#endif
#ifndef S_IWUGO
#define S_IWUGO         (S_IWUSR|S_IWGRP|S_IWOTH)
#endif
#ifndef S_IXUGO
#define S_IXUGO         (S_IXUSR|S_IXGRP|S_IXOTH)
#endif

static size_t syscall_arg__scnprintf_mode_t(char *bf, size_t size, struct syscall_arg *arg)
{
	bool show_prefix = arg->show_string_prefix;
	const char *prefix = "S_";
	int printed = 0, mode = arg->val;

#define	P_MODE(n) \
	if ((mode & S_##n) == S_##n) { \
		printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
		mode &= ~S_##n; \
	}

	P_MODE(IALLUGO);
	P_MODE(IRWXUGO);
	P_MODE(IRUGO);
	P_MODE(IWUGO);
	P_MODE(IXUGO);
	P_MODE(IFMT);
	P_MODE(IFSOCK);
	P_MODE(IFLNK);
	P_MODE(IFREG);
	P_MODE(IFBLK);
	P_MODE(IFDIR);
	P_MODE(IFCHR);
	P_MODE(IFIFO);
	P_MODE(ISUID);
	P_MODE(ISGID);
	P_MODE(ISVTX);
	P_MODE(IRWXU);
	P_MODE(IRUSR);
	P_MODE(IWUSR);
	P_MODE(IXUSR);
	P_MODE(IRWXG);
	P_MODE(IRGRP);
	P_MODE(IWGRP);
	P_MODE(IXGRP);
	P_MODE(IRWXO);
	P_MODE(IROTH);
	P_MODE(IWOTH);
	P_MODE(IXOTH);
#undef P_MODE

	if (mode)
		printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", mode);

	return printed;
}

#define SCA_MODE_T syscall_arg__scnprintf_mode_t

Annotation

Implementation Notes