1 files changed, 93 insertions, 92 deletions

diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c
index 33c5b5495482..a35dc57d5995 100644
--- a/tools/perf/util/mmap.c
+++ b/tools/perf/util/mmap.c
@@ -12,6 +12,7 @@
 #include <linux/zalloc.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h> // sysconf()
 #ifdef HAVE_LIBNUMA_SUPPORT
 #include <numaif.h>
 #endif
@@ -20,25 +21,25 @@
 #include "event.h"
 #include "mmap.h"
 #include "../perf.h"
-#include "util.h" /* page_size */
+#include <internal/lib.h> /* page_size */
 
-size_t perf_mmap__mmap_len(struct perf_mmap *map)
+size_t perf_mmap__mmap_len(struct mmap *map)
 {
-	return map->mask + 1 + page_size;
+	return map->core.mask + 1 + page_size;
 }
 
 /* When check_messup is true, 'end' must points to a good entry */
-static union perf_event *perf_mmap__read(struct perf_mmap *map,
+static union perf_event *perf_mmap__read(struct mmap *map,
 					 u64 *startp, u64 end)
 {
-	unsigned char *data = map->base + page_size;
+	unsigned char *data = map->core.base + page_size;
 	union perf_event *event = NULL;
 	int diff = end - *startp;
 
 	if (diff >= (int)sizeof(event->header)) {
 		size_t size;
 
-		event = (union perf_event *)&data[*startp & map->mask];
+		event = (union perf_event *)&data[*startp & map->core.mask];
 		size = event->header.size;
 
 		if (size < sizeof(event->header) || diff < (int)size)
@@ -48,20 +49,20 @@ static union perf_event *perf_mmap__read(struct perf_mmap *map,
 		 * Event straddles the mmap boundary -- header should always
 		 * be inside due to u64 alignment of output.
 		 */
-		if ((*startp & map->mask) + size != ((*startp + size) & map->mask)) {
+		if ((*startp & map->core.mask) + size != ((*startp + size) & map->core.mask)) {
 			unsigned int offset = *startp;
 			unsigned int len = min(sizeof(*event), size), cpy;
-			void *dst = map->event_copy;
+			void *dst = map->core.event_copy;
 
 			do {
-				cpy = min(map->mask + 1 - (offset & map->mask), len);
-				memcpy(dst, &data[offset & map->mask], cpy);
+				cpy = min(map->core.mask + 1 - (offset & map->core.mask), len);
+				memcpy(dst, &data[offset & map->core.mask], cpy);
 				offset += cpy;
 				dst += cpy;
 				len -= cpy;
 			} while (len);
 
-			event = (union perf_event *)map->event_copy;
+			event = (union perf_event *)map->core.event_copy;
 		}
 
 		*startp += size;
@@ -82,55 +83,55 @@ static union perf_event *perf_mmap__read(struct perf_mmap *map,
  * }
  * perf_mmap__read_done()
  */
-union perf_event *perf_mmap__read_event(struct perf_mmap *map)
+union perf_event *perf_mmap__read_event(struct mmap *map)
 {
 	union perf_event *event;
 
 	/*
 	 * Check if event was unmapped due to a POLLHUP/POLLERR.
 	 */
-	if (!refcount_read(&map->refcnt))
+	if (!refcount_read(&map->core.refcnt))
 		return NULL;
 
 	/* non-overwirte doesn't pause the ringbuffer */
-	if (!map->overwrite)
-		map->end = perf_mmap__read_head(map);
+	if (!map->core.overwrite)
+		map->core.end = perf_mmap__read_head(map);
 
-	event = perf_mmap__read(map, &map->start, map->end);
+	event = perf_mmap__read(map, &map->core.start, map->core.end);
 
-	if (!map->overwrite)
-		map->prev = map->start;
+	if (!map->core.overwrite)
+		map->core.prev = map->core.start;
 
 	return event;
 }
 
-static bool perf_mmap__empty(struct perf_mmap *map)
+static bool perf_mmap__empty(struct mmap *map)
 {
-	return perf_mmap__read_head(map) == map->prev && !map->auxtrace_mmap.base;
+	return perf_mmap__read_head(map) == map->core.prev && !map->auxtrace_mmap.base;
 }
 
-void perf_mmap__get(struct perf_mmap *map)
+void perf_mmap__get(struct mmap *map)
 {
-	refcount_inc(&map->refcnt);
+	refcount_inc(&map->core.refcnt);
 }
 
-void perf_mmap__put(struct perf_mmap *map)
+void perf_mmap__put(struct mmap *map)
 {
-	BUG_ON(map->base && refcount_read(&map->refcnt) == 0);
+	BUG_ON(map->core.base && refcount_read(&map->core.refcnt) == 0);
 
-	if (refcount_dec_and_test(&map->refcnt))
+	if (refcount_dec_and_test(&map->core.refcnt))
 		perf_mmap__munmap(map);
 }
 
-void perf_mmap__consume(struct perf_mmap *map)
+void perf_mmap__consume(struct mmap *map)
 {
-	if (!map->overwrite) {
-		u64 old = map->prev;
+	if (!map->core.overwrite) {
+		u64 old = map->core.prev;
 
 		perf_mmap__write_tail(map, old);
 	}
 
-	if (refcount_read(&map->refcnt) == 1 && perf_mmap__empty(map))
+	if (refcount_read(&map->core.refcnt) == 1 && perf_mmap__empty(map))
 		perf_mmap__put(map);
 }
 
@@ -161,13 +162,13 @@ void __weak auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp __mayb
 }
 
 #ifdef HAVE_AIO_SUPPORT
-static int perf_mmap__aio_enabled(struct perf_mmap *map)
+static int perf_mmap__aio_enabled(struct mmap *map)
 {
 	return map->aio.nr_cblocks > 0;
 }
 
 #ifdef HAVE_LIBNUMA_SUPPORT
-static int perf_mmap__aio_alloc(struct perf_mmap *map, int idx)
+static int perf_mmap__aio_alloc(struct mmap *map, int idx)
 {
 	map->aio.data[idx] = mmap(NULL, perf_mmap__mmap_len(map), PROT_READ|PROT_WRITE,
 				  MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
@@ -179,7 +180,7 @@ static int perf_mmap__aio_alloc(struct perf_mmap *map, int idx)
 	return 0;
 }
 
-static void perf_mmap__aio_free(struct perf_mmap *map, int idx)
+static void perf_mmap__aio_free(struct mmap *map, int idx)
 {
 	if (map->aio.data[idx]) {
 		munmap(map->aio.data[idx], perf_mmap__mmap_len(map));
@@ -187,7 +188,7 @@ static void perf_mmap__aio_free(struct perf_mmap *map, int idx)
 	}
 }
 
-static int perf_mmap__aio_bind(struct perf_mmap *map, int idx, int cpu, int affinity)
+static int perf_mmap__aio_bind(struct mmap *map, int idx, int cpu, int affinity)
 {
 	void *data;
 	size_t mmap_len;
@@ -207,7 +208,7 @@ static int perf_mmap__aio_bind(struct perf_mmap *map, int idx, int cpu, int affi
 	return 0;
 }
 #else /* !HAVE_LIBNUMA_SUPPORT */
-static int perf_mmap__aio_alloc(struct perf_mmap *map, int idx)
+static int perf_mmap__aio_alloc(struct mmap *map, int idx)
 {
 	map->aio.data[idx] = malloc(perf_mmap__mmap_len(map));
 	if (map->aio.data[idx] == NULL)
@@ -216,19 +217,19 @@ static int perf_mmap__aio_alloc(struct perf_mmap *map, int idx)
 	return 0;
 }
 
-static void perf_mmap__aio_free(struct perf_mmap *map, int idx)
+static void perf_mmap__aio_free(struct mmap *map, int idx)
 {
 	zfree(&(map->aio.data[idx]));
 }
 
-static int perf_mmap__aio_bind(struct perf_mmap *map __maybe_unused, int idx __maybe_unused,
+static int perf_mmap__aio_bind(struct mmap *map __maybe_unused, int idx __maybe_unused,
 		int cpu __maybe_unused, int affinity __maybe_unused)
 {
 	return 0;
 }
 #endif
 
-static int perf_mmap__aio_mmap(struct perf_mmap *map, struct mmap_params *mp)
+static int perf_mmap__aio_mmap(struct mmap *map, struct mmap_params *mp)
 {
 	int delta_max, i, prio, ret;
 
@@ -256,7 +257,7 @@ static int perf_mmap__aio_mmap(struct perf_mmap *map, struct mmap_params *mp)
 				pr_debug2("failed to allocate data buffer area, error %m");
 				return -1;
 			}
-			ret = perf_mmap__aio_bind(map, i, map->cpu, mp->affinity);
+			ret = perf_mmap__aio_bind(map, i, map->core.cpu, mp->affinity);
 			if (ret == -1)
 				return -1;
 			/*
@@ -282,7 +283,7 @@ static int perf_mmap__aio_mmap(struct perf_mmap *map, struct mmap_params *mp)
 	return 0;
 }
 
-static void perf_mmap__aio_munmap(struct perf_mmap *map)
+static void perf_mmap__aio_munmap(struct mmap *map)
 {
 	int i;
 
@@ -294,34 +295,34 @@ static void perf_mmap__aio_munmap(struct perf_mmap *map)
 	zfree(&map->aio.aiocb);
 }
 #else /* !HAVE_AIO_SUPPORT */
-static int perf_mmap__aio_enabled(struct perf_mmap *map __maybe_unused)
+static int perf_mmap__aio_enabled(struct mmap *map __maybe_unused)
 {
 	return 0;
 }
 
-static int perf_mmap__aio_mmap(struct perf_mmap *map __maybe_unused,
+static int perf_mmap__aio_mmap(struct mmap *map __maybe_unused,
 			       struct mmap_params *mp __maybe_unused)
 {
 	return 0;
 }
 
-static void perf_mmap__aio_munmap(struct perf_mmap *map __maybe_unused)
+static void perf_mmap__aio_munmap(struct mmap *map __maybe_unused)
 {
 }
 #endif
 
-void perf_mmap__munmap(struct perf_mmap *map)
+void perf_mmap__munmap(struct mmap *map)
 {
 	perf_mmap__aio_munmap(map);
 	if (map->data != NULL) {
 		munmap(map->data, perf_mmap__mmap_len(map));
 		map->data = NULL;
 	}
-	if (map->base != NULL) {
-		munmap(map->base, perf_mmap__mmap_len(map));
-		map->base = NULL;
-		map->fd = -1;
-		refcount_set(&map->refcnt, 0);
+	if (map->core.base != NULL) {
+		munmap(map->core.base, perf_mmap__mmap_len(map));
+		map->core.base = NULL;
+		map->core.fd = -1;
+		refcount_set(&map->core.refcnt, 0);
 	}
 	auxtrace_mmap__munmap(&map->auxtrace_mmap);
 }
@@ -343,16 +344,16 @@ static void build_node_mask(int node, cpu_set_t *mask)
 	}
 }
 
-static void perf_mmap__setup_affinity_mask(struct perf_mmap *map, struct mmap_params *mp)
+static void perf_mmap__setup_affinity_mask(struct mmap *map, struct mmap_params *mp)
 {
 	CPU_ZERO(&map->affinity_mask);
 	if (mp->affinity == PERF_AFFINITY_NODE && cpu__max_node() > 1)
-		build_node_mask(cpu__get_node(map->cpu), &map->affinity_mask);
+		build_node_mask(cpu__get_node(map->core.cpu), &map->affinity_mask);
 	else if (mp->affinity == PERF_AFFINITY_CPU)
-		CPU_SET(map->cpu, &map->affinity_mask);
+		CPU_SET(map->core.cpu, &map->affinity_mask);
 }
 
-int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd, int cpu)
+int perf_mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu)
 {
 	/*
 	 * The last one will be done at perf_mmap__consume(), so that we
@@ -367,23 +368,23 @@ int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd, int c
 	 * evlist layer can't just drop it when filtering events in
 	 * perf_evlist__filter_pollfd().
 	 */
-	refcount_set(&map->refcnt, 2);
-	map->prev = 0;
-	map->mask = mp->mask;
-	map->base = mmap(NULL, perf_mmap__mmap_len(map), mp->prot,
+	refcount_set(&map->core.refcnt, 2);
+	map->core.prev = 0;
+	map->core.mask = mp->mask;
+	map->core.base = mmap(NULL, perf_mmap__mmap_len(map), mp->prot,
 			 MAP_SHARED, fd, 0);
-	if (map->base == MAP_FAILED) {
+	if (map->core.base == MAP_FAILED) {
 		pr_debug2("failed to mmap perf event ring buffer, error %d\n",
 			  errno);
-		map->base = NULL;
+		map->core.base = NULL;
 		return -1;
 	}
-	map->fd = fd;
-	map->cpu = cpu;
+	map->core.fd = fd;
+	map->core.cpu = cpu;
 
 	perf_mmap__setup_affinity_mask(map, mp);
 
-	map->flush = mp->flush;
+	map->core.flush = mp->flush;
 
 	map->comp_level = mp->comp_level;
 
@@ -399,7 +400,7 @@ int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd, int c
 	}
 
 	if (auxtrace_mmap__mmap(&map->auxtrace_mmap,
-				&mp->auxtrace_mp, map->base, fd))
+				&mp->auxtrace_mp, map->core.base, fd))
 		return -1;
 
 	return perf_mmap__aio_mmap(map, mp);
@@ -440,25 +441,25 @@ static int overwrite_rb_find_range(void *buf, int mask, u64 *start, u64 *end)
 /*
  * Report the start and end of the available data in ringbuffer
  */
-static int __perf_mmap__read_init(struct perf_mmap *md)
+static int __perf_mmap__read_init(struct mmap *md)
 {
 	u64 head = perf_mmap__read_head(md);
-	u64 old = md->prev;
-	unsigned char *data = md->base + page_size;
+	u64 old = md->core.prev;
+	unsigned char *data = md->core.base + page_size;
 	unsigned long size;
 
-	md->start = md->overwrite ? head : old;
-	md->end = md->overwrite ? old : head;
+	md->core.start = md->core.overwrite ? head : old;
+	md->core.end = md->core.overwrite ? old : head;
 
-	if ((md->end - md->start) < md->flush)
+	if ((md->core.end - md->core.start) < md->core.flush)
 		return -EAGAIN;
 
-	size = md->end - md->start;
-	if (size > (unsigned long)(md->mask) + 1) {
-		if (!md->overwrite) {
+	size = md->core.end - md->core.start;
+	if (size > (unsigned long)(md->core.mask) + 1) {
+		if (!md->core.overwrite) {
 			WARN_ONCE(1, "failed to keep up with mmap data. (warn only once)\n");
 
-			md->prev = head;
+			md->core.prev = head;
 			perf_mmap__consume(md);
 			return -EAGAIN;
 		}
@@ -467,29 +468,29 @@ static int __perf_mmap__read_init(struct perf_mmap *md)
 		 * Backward ring buffer is full. We still have a chance to read
 		 * most of data from it.
 		 */
-		if (overwrite_rb_find_range(data, md->mask, &md->start, &md->end))
+		if (overwrite_rb_find_range(data, md->core.mask, &md->core.start, &md->core.end))
 			return -EINVAL;
 	}
 
 	return 0;
 }
 
-int perf_mmap__read_init(struct perf_mmap *map)
+int perf_mmap__read_init(struct mmap *map)
 {
 	/*
 	 * Check if event was unmapped due to a POLLHUP/POLLERR.
 	 */
-	if (!refcount_read(&map->refcnt))
+	if (!refcount_read(&map->core.refcnt))
 		return -ENOENT;
 
 	return __perf_mmap__read_init(map);
 }
 
-int perf_mmap__push(struct perf_mmap *md, void *to,
-		    int push(struct perf_mmap *map, void *to, void *buf, size_t size))
+int perf_mmap__push(struct mmap *md, void *to,
+		    int push(struct mmap *map, void *to, void *buf, size_t size))
 {
 	u64 head = perf_mmap__read_head(md);
-	unsigned char *data = md->base + page_size;
+	unsigned char *data = md->core.base + page_size;
 	unsigned long size;
 	void *buf;
 	int rc = 0;
@@ -498,12 +499,12 @@ int perf_mmap__push(struct perf_mmap *md, void *to,
 	if (rc < 0)
 		return (rc == -EAGAIN) ? 1 : -1;
 
-	size = md->end - md->start;
+	size = md->core.end - md->core.start;
 
-	if ((md->start & md->mask) + size != (md->end & md->mask)) {
-		buf = &data[md->start & md->mask];
-		size = md->mask + 1 - (md->start & md->mask);
-		md->start += size;
+	if ((md->core.start & md->core.mask) + size != (md->core.end & md->core.mask)) {
+		buf = &data[md->core.start & md->core.mask];
+		size = md->core.mask + 1 - (md->core.start & md->core.mask);
+		md->core.start += size;
 
 		if (push(md, to, buf, size) < 0) {
 			rc = -1;
@@ -511,16 +512,16 @@ int perf_mmap__push(struct perf_mmap *md, void *to,
 		}
 	}
 
-	buf = &data[md->start & md->mask];
-	size = md->end - md->start;
-	md->start += size;
+	buf = &data[md->core.start & md->core.mask];
+	size = md->core.end - md->core.start;
+	md->core.start += size;
 
 	if (push(md, to, buf, size) < 0) {
 		rc = -1;
 		goto out;
 	}
 
-	md->prev = head;
+	md->core.prev = head;
 	perf_mmap__consume(md);
 out:
 	return rc;
@@ -529,16 +530,16 @@ out:
 /*
  * Mandatory for overwrite mode
  * The direction of overwrite mode is backward.
- * The last perf_mmap__read() will set tail to map->prev.
- * Need to correct the map->prev to head which is the end of next read.
+ * The last perf_mmap__read() will set tail to map->core.prev.
+ * Need to correct the map->core.prev to head which is the end of next read.
  */
-void perf_mmap__read_done(struct perf_mmap *map)
+void perf_mmap__read_done(struct mmap *map)
 {
 	/*
 	 * Check if event was unmapped due to a POLLHUP/POLLERR.
 	 */
-	if (!refcount_read(&map->refcnt))
+	if (!refcount_read(&map->core.refcnt))
 		return;
 
-	map->prev = perf_mmap__read_head(map);
+	map->core.prev = perf_mmap__read_head(map);
 }