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Age	Commit message (Expand)	Author
2010-05-27	initramfs: add support for in-kernel initramfs compressed with LZO	Albin Tonnerre
2010-01-11	Add LZO compression support for initramfs and old-style initrd	Albin Tonnerre
2009-12-12	gen_init_cpio: fixed fwrite warning	Mike Frysinger
2009-09-23	Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next	Linus Torvalds
2009-09-23	Fix all -Wmissing-prototypes warnings in x86 defconfig	Trevor Keith
2009-09-20	gitignore usr/initramfs_data.cpio.bz2 and usr/initramfs_data.cpio.lzma	Jaswinder Singh Rajput
2009-09-20	kbuild: correct initramfs compression comment	Robert P. J. Day
2009-03-31	bzip2/lzma: quiet Kconfig warning for INITRAMFS_COMPRESSION_NONE	H. Peter Anvin
2009-03-28	bzip2/lzma: don't ask for compression mode for the default initramfs	H. Peter Anvin
2009-03-28	bzip2/lzma: consistently capitalize LZMA in Kconfig	H. Peter Anvin
2009-03-28	bzip2/lzma: clarify the meaning of the CONFIG_RD_ options	H. Peter Anvin
2009-03-28	bzip2/lzma: move CONFIG_RD_* options under CONFIG_EMBEDDED	H. Peter Anvin
2009-02-19	bzip2/lzma: make internal initramfs compression configurable	Alain Knaff
2009-01-07	bzip2/lzma: fix built-in initramfs vs CONFIG_RD_GZIP	Alain Knaff
2009-01-07	bzip2/lzma: move initrd/ramfs options out of BLK_DEV	H. Peter Anvin
2008-12-03	kbuild: gen_init_cpio expands shell variables in file names	Sally, Gene
2007-07-16	kbuild: add support for reading stdin with gen_init_cpio	Mike Frysinger
2007-07-16	.gitignore update	Alexey Dobriyan
2007-05-02	usr/Kconfig: fix typo	Alexander E. Patrakov
2007-02-11	[PATCH] usr/gen_init_cpio.c: support for hard links	Luciano Rocha
2007-02-11	[PATCH] disable init/initramfs.c	Jean-Paul Saman
2006-11-25	[PATCH] initramfs: handle more than one source dir or file list	Thomas Chou
2006-09-25	kbuild: consistently decide when to rebuild a target	Sam Ravnborg
2006-08-07	kbuild: do not try to build content of initramfs	Sam Ravnborg
2006-06-10	kbuild: bugfix with initramfs	Nickolay
2006-04-19	[PATCH] Fix potential NULL pointer deref in gen_init_cpio	Jesper Juhl
2006-04-11	kbuild: rebuild initramfs if content of initramfs changes	Sam Ravnborg
2005-10-18	Add some basic .gitignore files	Linus Torvalds
2005-08-10	kconfig: move initramfs options to General Setup	Sam Ravnborg
2005-07-25	kbuild: introduce Kbuild.include	Sam Ravnborg
2005-04-16	Linux-2.6.12-rc2	Linus Torvalds

generated by cgit v1.2.3 (git 2.25.1) at 2024-09-10 21:08:30 +0000

/*
 * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
 *
 * Parts came from builtin-{top,stat,record}.c, see those files for further
 * copyright notes.
 *
 * Released under the GPL v2. (and only v2, not any later version)
 */
#include "util.h"
#include "debugfs.h"
#include <poll.h>
#include "cpumap.h"
#include "thread_map.h"
#include "target.h"
#include "evlist.h"
#include "evsel.h"
#include <unistd.h>

#include "parse-events.h"

#include <sys/mman.h>

#include <linux/bitops.h>
#include <linux/hash.h>

#define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
#define SID(e, x, y) xyarray__entry(e->sample_id, x, y)

void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
		       struct thread_map *threads)
{
	int i;

	for (i = 0; i < PERF_EVLIST__HLIST_SIZE; ++i)
		INIT_HLIST_HEAD(&evlist->heads[i]);
	INIT_LIST_HEAD(&evlist->entries);
	perf_evlist__set_maps(evlist, cpus, threads);
	evlist->workload.pid = -1;
}

struct perf_evlist *perf_evlist__new(struct cpu_map *cpus,
				     struct thread_map *threads)
{
	struct perf_evlist *evlist = zalloc(sizeof(*evlist));

	if (evlist != NULL)
		perf_evlist__init(evlist, cpus, threads);

	return evlist;
}

void perf_evlist__config(struct perf_evlist *evlist,
			struct perf_record_opts *opts)
{
	struct perf_evsel *evsel;
	/*
	 * Set the evsel leader links before we configure attributes,
	 * since some might depend on this info.
	 */
	if (opts->group)
		perf_evlist__set_leader(evlist);

	if (evlist->cpus->map[0] < 0)
		opts->no_inherit = true;

	list_for_each_entry(evsel, &evlist->entries, node) {
		perf_evsel__config(evsel, opts);

		if (evlist->nr_entries > 1)
			perf_evsel__set_sample_id(evsel);
	}
}

static void perf_evlist__purge(struct perf_evlist *evlist)
{
	struct perf_evsel *pos, *n;

	list_for_each_entry_safe(pos, n, &evlist->entries, node) {
		list_del_init(&pos->node);
		perf_evsel__delete(pos);
	}

	evlist->nr_entries = 0;
}

void perf_evlist__exit(struct perf_evlist *evlist)
{
	free(evlist->mmap);
	free(evlist->pollfd);
	evlist->mmap = NULL;
	evlist->pollfd = NULL;
}

void perf_evlist__delete(struct perf_evlist *evlist)
{
	perf_evlist__purge(evlist);
	perf_evlist__exit(evlist);
	free(evlist);
}

void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry)
{
	list_add_tail(&entry->node, &evlist->entries);
	++evlist->nr_entries;
}

void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
				   struct list_head *list,
				   int nr_entries)
{
	list_splice_tail(list, &evlist->entries);
	evlist->nr_entries += nr_entries;
}

void __perf_evlist__set_leader(struct list_head *list)
{
	struct perf_evsel *evsel, *leader;

	leader = list_entry(list->next, struct perf_evsel, node);
	evsel = list_entry(list->prev, struct perf_evsel, node);

	leader->nr_members = evsel->idx - leader->idx + 1;

	list_for_each_entry(evsel, list, node) {
		evsel->leader = leader;
	}
}

void perf_evlist__set_leader(struct perf_evlist *evlist)
{
	if (evlist->nr_entries) {
		evlist->nr_groups = evlist->nr_entries > 1 ? 1 : 0;
		__perf_evlist__set_leader(&evlist->entries);
	}
}

int perf_evlist__add_default(struct perf_evlist *evlist)
{
	struct perf_event_attr attr = {
		.type = PERF_TYPE_HARDWARE,
		.config = PERF_COUNT_HW_CPU_CYCLES,
	};
	struct perf_evsel *evsel;

	event_attr_init(&attr);

	evsel = perf_evsel__new(&attr, 0);
	if (evsel == NULL)
		goto error;

	/* use strdup() because free(evsel) assumes name is allocated */
	evsel->name = strdup("cycles");
	if (!evsel->name)
		goto error_free;

	perf_evlist__add(evlist, evsel);
	return 0;
error_free:
	perf_evsel__delete(evsel);
error:
	return -ENOMEM;
}

static int perf_evlist__add_attrs(struct perf_evlist *evlist,
				  struct perf_event_attr *attrs, size_t nr_attrs)
{
	struct perf_evsel *evsel, *n;
	LIST_HEAD(head);
	size_t i;

	for (i = 0; i < nr_attrs; i++) {
		evsel = perf_evsel__new(attrs + i, evlist->nr_entries + i);
		if (evsel == NULL)
			goto out_delete_partial_list;
		list_add_tail(&evsel->node, &head);
	}

	perf_evlist__splice_list_tail(evlist, &head, nr_attrs);

	return 0;

out_delete_partial_list:
	list_for_each_entry_safe(evsel, n, &head, node)
		perf_evsel__delete(