perf trace: Add a prefix member to the strarray class

So that the user, in an upcoming patch, can select printing it to get
the full string as used in the source code, not one with a common prefix
chopped off so as to make the output more compact.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-zypczc88gzbmeqx7b372s138@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-trace.c

@@ -423,6 +423,7 @@ static size_t syscall_arg__scnprintf_fd_at(char *bf, size_t size,
 					   struct syscall_arg *arg)
 {
 	int fd = arg->val;
+	/* char fd_at_prefix = "AT_FD"; */
 
 	if (fd == AT_FDCWD)
 		return scnprintf(bf, size, "CWD");
@@ -456,13 +457,13 @@ static const char *bpf_cmd[] = {
 	"MAP_CREATE", "MAP_LOOKUP_ELEM", "MAP_UPDATE_ELEM", "MAP_DELETE_ELEM",
 	"MAP_GET_NEXT_KEY", "PROG_LOAD",
 };
-static DEFINE_STRARRAY(bpf_cmd);
+static DEFINE_STRARRAY(bpf_cmd, "BPF_");
 
 static const char *epoll_ctl_ops[] = { "ADD", "DEL", "MOD", };
-static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, 1);
+static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, "EPOLL_CTL_", 1);
 
 static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", };
-static DEFINE_STRARRAY(itimers);
+static DEFINE_STRARRAY(itimers, "ITIMER_");
 
 static const char *keyctl_options[] = {
 	"GET_KEYRING_ID", "JOIN_SESSION_KEYRING", "UPDATE", "REVOKE", "CHOWN",
@@ -471,7 +472,7 @@ static const char *keyctl_options[] = {
 	"ASSUME_AUTHORITY", "GET_SECURITY", "SESSION_TO_PARENT", "REJECT",
 	"INSTANTIATE_IOV", "INVALIDATE", "GET_PERSISTENT",
 };
-static DEFINE_STRARRAY(keyctl_options);
+static DEFINE_STRARRAY(keyctl_options, "KEYCTL_");
 
 static const char *whences[] = { "SET", "CUR", "END",
 #ifdef SEEK_DATA
@@ -481,7 +482,7 @@ static const char *whences[] = { "SET", "CUR", "END",
 "HOLE",
 #endif
 };
-static DEFINE_STRARRAY(whences);
+static DEFINE_STRARRAY(whences, "SEEK_");
 
 static const char *fcntl_cmds[] = {
 	"DUPFD", "GETFD", "SETFD", "GETFL", "SETFL", "GETLK", "SETLK",
@@ -489,7 +490,7 @@ static const char *fcntl_cmds[] = {
 	"SETLK64", "SETLKW64", "SETOWN_EX", "GETOWN_EX",
 	"GETOWNER_UIDS",
 };
-static DEFINE_STRARRAY(fcntl_cmds);
+static DEFINE_STRARRAY(fcntl_cmds, "F_");
 
 static const char *fcntl_linux_specific_cmds[] = {
 	"SETLEASE", "GETLEASE", "NOTIFY", [5] =	"CANCELLK", "DUPFD_CLOEXEC",
@@ -497,7 +498,7 @@ static const char *fcntl_linux_specific_cmds[] = {
 	"GET_RW_HINT", "SET_RW_HINT", "GET_FILE_RW_HINT", "SET_FILE_RW_HINT",
 };
 
-static DEFINE_STRARRAY_OFFSET(fcntl_linux_specific_cmds, F_LINUX_SPECIFIC_BASE);
+static DEFINE_STRARRAY_OFFSET(fcntl_linux_specific_cmds, "F_", F_LINUX_SPECIFIC_BASE);
 
 static struct strarray *fcntl_cmds_arrays[] = {
 	&strarray__fcntl_cmds,
@@ -511,17 +512,17 @@ static const char *rlimit_resources[] = {
 	"MEMLOCK", "AS", "LOCKS", "SIGPENDING", "MSGQUEUE", "NICE", "RTPRIO",
 	"RTTIME",
 };
-static DEFINE_STRARRAY(rlimit_resources);
+static DEFINE_STRARRAY(rlimit_resources, "RLIMIT_");
 
 static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", };
-static DEFINE_STRARRAY(sighow);
+static DEFINE_STRARRAY(sighow, "SIG_");
 
 static const char *clockid[] = {
 	"REALTIME", "MONOTONIC", "PROCESS_CPUTIME_ID", "THREAD_CPUTIME_ID",
 	"MONOTONIC_RAW", "REALTIME_COARSE", "MONOTONIC_COARSE", "BOOTTIME",
 	"REALTIME_ALARM", "BOOTTIME_ALARM", "SGI_CYCLE", "TAI"
 };
-static DEFINE_STRARRAY(clockid);
+static DEFINE_STRARRAY(clockid, "CLOCK_");
 
 static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size,
 						 struct syscall_arg *arg)

tools/perf/trace/beauty/beauty.h

@@ -9,18 +9,21 @@
 struct strarray {
 	int	    offset;
 	int	    nr_entries;
+	const char *prefix;
 	const char **entries;
 };
 
-#define DEFINE_STRARRAY(array) struct strarray strarray__##array = { \
+#define DEFINE_STRARRAY(array, _prefix) struct strarray strarray__##array = { \
 	.nr_entries = ARRAY_SIZE(array), \
 	.entries = array, \
+	.prefix = _prefix, \
 }
 
-#define DEFINE_STRARRAY_OFFSET(array, off) struct strarray strarray__##array = { \
+#define DEFINE_STRARRAY_OFFSET(array, _prefix, off) struct strarray strarray__##array = { \
 	.offset	    = off, \
 	.nr_entries = ARRAY_SIZE(array), \
 	.entries = array, \
+	.prefix = _prefix, \
 }
 
 size_t strarray__scnprintf(struct strarray *sa, char *bf, size_t size, const char *intfmt, int val);

tools/perf/trace/beauty/fcntl.c

@@ -22,7 +22,7 @@ static size_t syscall_arg__scnprintf_fcntl_getfd(char *bf, size_t size, struct s
 static size_t fcntl__scnprintf_getlease(unsigned long val, char *bf, size_t size)
 {
 	static const char *fcntl_setlease[] = { "RDLCK", "WRLCK", "UNLCK", };
-	static DEFINE_STRARRAY(fcntl_setlease);
+	static DEFINE_STRARRAY(fcntl_setlease, "F_");
 
 	return strarray__scnprintf(&strarray__fcntl_setlease, bf, size, "%x", val);
 }

tools/perf/trace/beauty/ioctl.c

@@ -36,7 +36,7 @@ static size_t ioctl__scnprintf_tty_cmd(int nr, int dir, char *bf, size_t size)
 	"TIOCSERGWILD", "TIOCSERSWILD", "TIOCGLCKTRMIOS", "TIOCSLCKTRMIOS",
 	"TIOCSERGSTRUCT", "TIOCSERGETLSR", "TIOCSERGETMULTI", "TIOCSERSETMULTI",
 	"TIOCMIWAIT", "TIOCGICOUNT", };
-	static DEFINE_STRARRAY(ioctl_tty_cmd);
+	static DEFINE_STRARRAY(ioctl_tty_cmd, "");
 
 	if (nr < strarray__ioctl_tty_cmd.nr_entries && strarray__ioctl_tty_cmd.entries[nr] != NULL)
 		return scnprintf(bf, size, "%s", strarray__ioctl_tty_cmd.entries[nr]);
@@ -47,7 +47,7 @@ static size_t ioctl__scnprintf_tty_cmd(int nr, int dir, char *bf, size_t size)
 static size_t ioctl__scnprintf_drm_cmd(int nr, int dir, char *bf, size_t size)
 {
 #include "trace/beauty/generated/ioctl/drm_ioctl_array.c"
-	static DEFINE_STRARRAY(drm_ioctl_cmds);
+	static DEFINE_STRARRAY(drm_ioctl_cmds, "");
 
 	if (nr < strarray__drm_ioctl_cmds.nr_entries && strarray__drm_ioctl_cmds.entries[nr] != NULL)
 		return scnprintf(bf, size, "DRM_%s", strarray__drm_ioctl_cmds.entries[nr]);
@@ -58,7 +58,7 @@ static size_t ioctl__scnprintf_drm_cmd(int nr, int dir, char *bf, size_t size)
 static size_t ioctl__scnprintf_sndrv_pcm_cmd(int nr, int dir, char *bf, size_t size)
 {
 #include "trace/beauty/generated/ioctl/sndrv_pcm_ioctl_array.c"
-	static DEFINE_STRARRAY(sndrv_pcm_ioctl_cmds);
+	static DEFINE_STRARRAY(sndrv_pcm_ioctl_cmds, "");
 
 	if (nr < strarray__sndrv_pcm_ioctl_cmds.nr_entries && strarray__sndrv_pcm_ioctl_cmds.entries[nr] != NULL)
 		return scnprintf(bf, size, "SNDRV_PCM_%s", strarray__sndrv_pcm_ioctl_cmds.entries[nr]);
@@ -69,7 +69,7 @@ static size_t ioctl__scnprintf_sndrv_pcm_cmd(int nr, int dir, char *bf, size_t s
 static size_t ioctl__scnprintf_sndrv_ctl_cmd(int nr, int dir, char *bf, size_t size)
 {
 #include "trace/beauty/generated/ioctl/sndrv_ctl_ioctl_array.c"
-	static DEFINE_STRARRAY(sndrv_ctl_ioctl_cmds);
+	static DEFINE_STRARRAY(sndrv_ctl_ioctl_cmds, "");
 
 	if (nr < strarray__sndrv_ctl_ioctl_cmds.nr_entries && strarray__sndrv_ctl_ioctl_cmds.entries[nr] != NULL)
 		return scnprintf(bf, size, "SNDRV_CTL_%s", strarray__sndrv_ctl_ioctl_cmds.entries[nr]);
@@ -80,7 +80,7 @@ static size_t ioctl__scnprintf_sndrv_ctl_cmd(int nr, int dir, char *bf, size_t s
 static size_t ioctl__scnprintf_kvm_cmd(int nr, int dir, char *bf, size_t size)
 {
 #include "trace/beauty/generated/ioctl/kvm_ioctl_array.c"
-	static DEFINE_STRARRAY(kvm_ioctl_cmds);
+	static DEFINE_STRARRAY(kvm_ioctl_cmds, "");
 
 	if (nr < strarray__kvm_ioctl_cmds.nr_entries && strarray__kvm_ioctl_cmds.entries[nr] != NULL)
 		return scnprintf(bf, size, "KVM_%s", strarray__kvm_ioctl_cmds.entries[nr]);
@@ -91,8 +91,8 @@ static size_t ioctl__scnprintf_kvm_cmd(int nr, int dir, char *bf, size_t size)
 static size_t ioctl__scnprintf_vhost_virtio_cmd(int nr, int dir, char *bf, size_t size)
 {
 #include "trace/beauty/generated/ioctl/vhost_virtio_ioctl_array.c"
-	static DEFINE_STRARRAY(vhost_virtio_ioctl_cmds);
-	static DEFINE_STRARRAY(vhost_virtio_ioctl_read_cmds);
+	static DEFINE_STRARRAY(vhost_virtio_ioctl_cmds, "");
+	static DEFINE_STRARRAY(vhost_virtio_ioctl_read_cmds, "");
 	struct strarray *s = (dir & _IOC_READ) ? &strarray__vhost_virtio_ioctl_read_cmds : &strarray__vhost_virtio_ioctl_cmds;
 
 	if (nr < s->nr_entries && s->entries[nr] != NULL)
@@ -104,7 +104,7 @@ static size_t ioctl__scnprintf_vhost_virtio_cmd(int nr, int dir, char *bf, size_
 static size_t ioctl__scnprintf_perf_cmd(int nr, int dir, char *bf, size_t size)
 {
 #include "trace/beauty/generated/ioctl/perf_ioctl_array.c"
-	static DEFINE_STRARRAY(perf_ioctl_cmds);
+	static DEFINE_STRARRAY(perf_ioctl_cmds, "");
 
 	if (nr < strarray__perf_ioctl_cmds.nr_entries && strarray__perf_ioctl_cmds.entries[nr] != NULL)
 		return scnprintf(bf, size, "PERF_%s", strarray__perf_ioctl_cmds.entries[nr]);

tools/perf/trace/beauty/kcmp.c

@@ -28,7 +28,7 @@ size_t syscall_arg__scnprintf_kcmp_idx(char *bf, size_t size, struct syscall_arg
 
 static size_t kcmp__scnprintf_type(int type, char *bf, size_t size)
 {
-	static DEFINE_STRARRAY(kcmp_types);
+	static DEFINE_STRARRAY(kcmp_types, "KCMP_");
 	return strarray__scnprintf(&strarray__kcmp_types, bf, size, "%d", type);
 }
 

tools/perf/trace/beauty/mmap.c

@@ -34,7 +34,7 @@ static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size,
 static size_t mmap__scnprintf_flags(unsigned long flags, char *bf, size_t size)
 {
 #include "trace/beauty/generated/mmap_flags_array.c"
-       static DEFINE_STRARRAY(mmap_flags);
+       static DEFINE_STRARRAY(mmap_flags, "MAP_");
 
        return strarray__scnprintf_flags(&strarray__mmap_flags, bf, size, flags);
 }
@@ -78,7 +78,7 @@ static size_t syscall_arg__scnprintf_mremap_flags(char *bf, size_t size,
 static size_t madvise__scnprintf_behavior(int behavior, char *bf, size_t size)
 {
 #include "trace/beauty/generated/madvise_behavior_array.c"
-       static DEFINE_STRARRAY(madvise_advices);
+       static DEFINE_STRARRAY(madvise_advices, "MADV_");
 
        if (behavior < strarray__madvise_advices.nr_entries && strarray__madvise_advices.entries[behavior] != NULL)
                return scnprintf(bf, size, "MADV_%s", strarray__madvise_advices.entries[behavior]);

tools/perf/trace/beauty/mount_flags.c

@@ -14,7 +14,7 @@
 static size_t mount__scnprintf_flags(unsigned long flags, char *bf, size_t size)
 {
 #include "trace/beauty/generated/mount_flags_array.c"
-	static DEFINE_STRARRAY(mount_flags);
+	static DEFINE_STRARRAY(mount_flags, "MS_");
 
 	return strarray__scnprintf_flags(&strarray__mount_flags, bf, size, flags);
 }

tools/perf/trace/beauty/pkey_alloc.c

@@ -41,7 +41,7 @@ size_t strarray__scnprintf_flags(struct strarray *sa, char *bf, size_t size, uns
 static size_t pkey_alloc__scnprintf_access_rights(int access_rights, char *bf, size_t size)
 {
 #include "trace/beauty/generated/pkey_alloc_access_rights_array.c"
-	static DEFINE_STRARRAY(pkey_alloc_access_rights);
+	static DEFINE_STRARRAY(pkey_alloc_access_rights, "PKEY_");
 
 	return strarray__scnprintf_flags(&strarray__pkey_alloc_access_rights, bf, size, access_rights);
 }

tools/perf/trace/beauty/prctl.c

@@ -13,13 +13,13 @@
 
 static size_t prctl__scnprintf_option(int option, char *bf, size_t size)
 {
-	static DEFINE_STRARRAY(prctl_options);
+	static DEFINE_STRARRAY(prctl_options, "PR_");
 	return strarray__scnprintf(&strarray__prctl_options, bf, size, "%d", option);
 }
 
 static size_t prctl__scnprintf_set_mm(int option, char *bf, size_t size)
 {
-	static DEFINE_STRARRAY(prctl_set_mm_options);
+	static DEFINE_STRARRAY(prctl_set_mm_options, "PR_SET_MM_");
 	return strarray__scnprintf(&strarray__prctl_set_mm_options, bf, size, "%d", option);
 }
 

tools/perf/trace/beauty/renameat.c

@@ -7,7 +7,7 @@
 static size_t renameat2__scnprintf_flags(unsigned long flags, char *bf, size_t size)
 {
 #include "trace/beauty/generated/rename_flags_array.c"
-       static DEFINE_STRARRAY(rename_flags);
+       static DEFINE_STRARRAY(rename_flags, "RENAME_");
 
        return strarray__scnprintf_flags(&strarray__rename_flags, bf, size, flags);
 }

tools/perf/trace/beauty/sockaddr.c

@@ -15,7 +15,7 @@ static const char *socket_families[] = {
 	"BLUETOOTH", "IUCV", "RXRPC", "ISDN", "PHONET", "IEEE802154", "CAIF",
 	"ALG", "NFC", "VSOCK",
 };
-DEFINE_STRARRAY(socket_families);
+DEFINE_STRARRAY(socket_families, "PF_");
 
 static size_t af_inet__scnprintf(struct sockaddr *sa, char *bf, size_t size)
 {

tools/perf/trace/beauty/socket.c

@@ -12,7 +12,7 @@
 static size_t socket__scnprintf_ipproto(int protocol, char *bf, size_t size)
 {
 #include "trace/beauty/generated/socket_ipproto_array.c"
-	static DEFINE_STRARRAY(socket_ipproto);
+	static DEFINE_STRARRAY(socket_ipproto, "IPPROTO_");
 
 	return strarray__scnprintf(&strarray__socket_ipproto, bf, size, "%d", protocol);
 }