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perf header: Use struct feat_fd to process header records 

As preparation for using header records in pipe-mode, replace int fd
with struct feat_fd ff in process functions for all header record types.

This patch does not change behavior.

Signed-off-by: David Carrillo-Cisneros <davidcc@google.com>
Acked-by: David Ahern <dsahern@gmail.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Simon Que <sque@chromium.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/20170718042549.145161-9-davidcc@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
David Carrillo-Cisneros 2017-07-17 21:25:41 -07:00 committed by Arnaldo Carvalho de Melo
parent cfc654209e
commit 1a22275449
1 changed files with 79 additions and 85 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

164
tools/perf/util/header.c
View File

@ -1594,11 +1594,10 @@ out:
/* Macro for features that simply need to read and store a string. */
#define FEAT_PROCESS_STR_FUN(__feat, __feat_env) \
static int process_##__feat(struct perf_file_section *section __maybe_unused, \
struct perf_header *ph, int fd, \
void *data __maybe_unused) \
struct feat_fd *ff, void *data __maybe_unused) \
{\
ph->env.__feat_env = do_read_string(fd, ph); \
return ph->env.__feat_env ? 0 : -ENOMEM; \
ff->ph->env.__feat_env = do_read_string(ff->fd, ff->ph); \
return ff->ph->env.__feat_env ? 0 : -ENOMEM; \
}
FEAT_PROCESS_STR_FUN(hostname, hostname);
@ -1609,52 +1608,49 @@ FEAT_PROCESS_STR_FUN(cpudesc, cpu_desc);
FEAT_PROCESS_STR_FUN(cpuid, cpuid);
static int process_tracing_data(struct perf_file_section *section __maybe_unused,
struct perf_header *ph __maybe_unused,
int fd, void *data)
struct feat_fd *ff, void *data)
{
ssize_t ret = trace_report(fd, data, false);
ssize_t ret = trace_report(ff->fd, data, false);
return ret < 0 ? -1 : 0;
}
static int process_build_id(struct perf_file_section *section,
struct perf_header *ph, int fd,
void *data __maybe_unused)
struct feat_fd *ff, void *data __maybe_unused)
{
if (perf_header__read_build_ids(ph, fd, section->offset, section->size))
if (perf_header__read_build_ids(ff->ph, ff->fd, section->offset, section->size))
pr_debug("Failed to read buildids, continuing...\n");
return 0;
}
static int process_nrcpus(struct perf_file_section *section __maybe_unused,
struct perf_header *ph, int fd,
void *data __maybe_unused)
struct feat_fd *ff, void *data __maybe_unused)
{
int ret;
u32 nr_cpus_avail, nr_cpus_online;
ret = do_read_u32(fd, ph, &nr_cpus_avail);
ret = do_read_u32(ff->fd, ff->ph, &nr_cpus_avail);
if (ret)
return ret;
ret = do_read_u32(fd, ph, &nr_cpus_online);
ret = do_read_u32(ff->fd, ff->ph, &nr_cpus_online);
if (ret)
return ret;
ph->env.nr_cpus_avail = (int)nr_cpus_avail;
ph->env.nr_cpus_online = (int)nr_cpus_online;
ff->ph->env.nr_cpus_avail = (int)nr_cpus_avail;
ff->ph->env.nr_cpus_online = (int)nr_cpus_online;
return 0;
}
static int process_total_mem(struct perf_file_section *section __maybe_unused,
struct perf_header *ph, int fd,
void *data __maybe_unused)
struct feat_fd *ff, void *data __maybe_unused)
{
u64 total_mem;
int ret;
ret = do_read_u64(fd, ph, &total_mem);
ret = do_read_u64(ff->fd, ff->ph, &total_mem);
if (ret)
return -1;
ph->env.total_mem = (unsigned long long)total_mem;
ff->ph->env.total_mem = (unsigned long long)total_mem;
return 0;
}
@ -1692,16 +1688,15 @@ perf_evlist__set_event_name(struct perf_evlist *evlist,
static int
process_event_desc(struct perf_file_section *section __maybe_unused,
struct perf_header *header, int fd,
void *data __maybe_unused)
struct feat_fd *ff, void *data __maybe_unused)
{
struct perf_session *session;
struct perf_evsel *evsel, *events = read_event_desc(header, fd);
struct perf_evsel *evsel, *events = read_event_desc(ff->ph, ff->fd);
if (!events)
return 0;
session = container_of(header, struct perf_session, header);
session = container_of(ff->ph, struct perf_session, header);
for (evsel = events; evsel->attr.size; evsel++)
perf_evlist__set_event_name(session->evlist, evsel);
@ -1710,17 +1705,16 @@ process_event_desc(struct perf_file_section *section __maybe_unused,
return 0;
}
static int process_cmdline(struct perf_file_section *section,
struct perf_header *ph, int fd,
void *data __maybe_unused)
static int process_cmdline(struct perf_file_section *section __maybe_unused,
struct feat_fd *ff, void *data __maybe_unused)
{
char *str, *cmdline = NULL, **argv = NULL;
u32 nr, i, len = 0;
if (do_read_u32(fd, ph, &nr))
if (do_read_u32(ff->fd, ff->ph, &nr))
return -1;
ph->env.nr_cmdline = nr;
ff->ph->env.nr_cmdline = nr;
cmdline = zalloc(section->size + nr + 1);
if (!cmdline)
@ -1731,7 +1725,7 @@ static int process_cmdline(struct perf_file_section *section,
goto error;
for (i = 0; i < nr; i++) {
str = do_read_string(fd, ph);
str = do_read_string(ff->fd, ff->ph);
if (!str)
goto error;
@ -1740,8 +1734,8 @@ static int process_cmdline(struct perf_file_section *section,
len += strlen(str) + 1;
free(str);
}
ph->env.cmdline = cmdline;
ph->env.cmdline_argv = (const char **) argv;
ff->ph->env.cmdline = cmdline;
ff->ph->env.cmdline_argv = (const char **) argv;
return 0;
error:
@ -1750,21 +1744,21 @@ error:
return -1;
}
static int process_cpu_topology(struct perf_file_section *section,
struct perf_header *ph, int fd,
void *data __maybe_unused)
static int process_cpu_topology(struct perf_file_section *section __maybe_unused,
struct feat_fd *ff, void *data __maybe_unused)
{
u32 nr, i;
char *str;
struct strbuf sb;
int cpu_nr = ph->env.nr_cpus_avail;
int cpu_nr = ff->ph->env.nr_cpus_avail;
u64 size = 0;
struct perf_header *ph = ff->ph;
ph->env.cpu = calloc(cpu_nr, sizeof(*ph->env.cpu));
if (!ph->env.cpu)
return -1;
if (do_read_u32(fd, ph, &nr))
if (do_read_u32(ff->fd, ph, &nr))
goto free_cpu;
ph->env.nr_sibling_cores = nr;
@ -1773,7 +1767,7 @@ static int process_cpu_topology(struct perf_file_section *section,
goto free_cpu;
for (i = 0; i < nr; i++) {
str = do_read_string(fd, ph);
str = do_read_string(ff->fd, ph);
if (!str)
goto error;
@ -1785,14 +1779,14 @@ static int process_cpu_topology(struct perf_file_section *section,
}
ph->env.sibling_cores = strbuf_detach(&sb, NULL);
if (do_read_u32(fd, ph, &nr))
if (do_read_u32(ff->fd, ph, &nr))
return -1;
ph->env.nr_sibling_threads = nr;
size += sizeof(u32);
for (i = 0; i < nr; i++) {
str = do_read_string(fd, ph);
str = do_read_string(ff->fd, ph);
if (!str)
goto error;
@ -1814,12 +1808,12 @@ static int process_cpu_topology(struct perf_file_section *section,
}
for (i = 0; i < (u32)cpu_nr; i++) {
if (do_read_u32(fd, ph, &nr))
if (do_read_u32(ff->fd, ph, &nr))
goto free_cpu;
ph->env.cpu[i].core_id = nr;
if (do_read_u32(fd, ph, &nr))
if (do_read_u32(ff->fd, ph, &nr))
goto free_cpu;
if (nr != (u32)-1 && nr > (u32)cpu_nr) {
@ -1841,15 +1835,14 @@ free_cpu:
}
static int process_numa_topology(struct perf_file_section *section __maybe_unused,
struct perf_header *ph, int fd,
void *data __maybe_unused)
struct feat_fd *ff, void *data __maybe_unused)
{
struct numa_node *nodes, *n;
u32 nr, i;
char *str;
/* nr nodes */
if (do_read_u32(fd, ph, &nr))
if (do_read_u32(ff->fd, ff->ph, &nr))
return -1;
nodes = zalloc(sizeof(*nodes) * nr);
@ -1860,16 +1853,16 @@ static int process_numa_topology(struct perf_file_section *section __maybe_unuse
n = &nodes[i];
/* node number */
if (do_read_u32(fd, ph, &n->node))
if (do_read_u32(ff->fd, ff->ph, &n->node))
goto error;
if (do_read_u64(fd, ph, &n->mem_total))
if (do_read_u64(ff->fd, ff->ph, &n->mem_total))
goto error;
if (do_read_u64(fd, ph, &n->mem_free))
if (do_read_u64(ff->fd, ff->ph, &n->mem_free))
goto error;
str = do_read_string(fd, ph);
str = do_read_string(ff->fd, ff->ph);
if (!str)
goto error;
@ -1879,8 +1872,8 @@ static int process_numa_topology(struct perf_file_section *section __maybe_unuse
free(str);
}
ph->env.nr_numa_nodes = nr;
ph->env.numa_nodes = nodes;
ff->ph->env.nr_numa_nodes = nr;
ff->ph->env.numa_nodes = nodes;
return 0;
error:
@ -1889,15 +1882,14 @@ error:
}
static int process_pmu_mappings(struct perf_file_section *section __maybe_unused,
struct perf_header *ph, int fd,
void *data __maybe_unused)
struct feat_fd *ff, void *data __maybe_unused)
{
char *name;
u32 pmu_num;
u32 type;
struct strbuf sb;
if (do_read_u32(fd, ph, &pmu_num))
if (do_read_u32(ff->fd, ff->ph, &pmu_num))
return -1;
if (!pmu_num) {
@ -1905,15 +1897,15 @@ static int process_pmu_mappings(struct perf_file_section *section __maybe_unused
return 0;
}
ph->env.nr_pmu_mappings = pmu_num;
ff->ph->env.nr_pmu_mappings = pmu_num;
if (strbuf_init(&sb, 128) < 0)
return -1;
while (pmu_num) {
if (do_read_u32(fd, ph, &type))
if (do_read_u32(ff->fd, ff->ph, &type))
goto error;
name = do_read_string(fd, ph);
name = do_read_string(ff->fd, ff->ph);
if (!name)
goto error;
@ -1924,12 +1916,12 @@ static int process_pmu_mappings(struct perf_file_section *section __maybe_unused
goto error;
if (!strcmp(name, "msr"))
ph->env.msr_pmu_type = type;
ff->ph->env.msr_pmu_type = type;
free(name);
pmu_num--;
}
ph->env.pmu_mappings = strbuf_detach(&sb, NULL);
ff->ph->env.pmu_mappings = strbuf_detach(&sb, NULL);
return 0;
error:
@ -1938,8 +1930,7 @@ error:
}
static int process_group_desc(struct perf_file_section *section __maybe_unused,
struct perf_header *ph, int fd,
void *data __maybe_unused)
struct feat_fd *ff, void *data __maybe_unused)
{
size_t ret = -1;
u32 i, nr, nr_groups;
@ -1951,10 +1942,10 @@ static int process_group_desc(struct perf_file_section *section __maybe_unused,
u32 nr_members;
} *desc;
if (do_read_u32(fd, ph, &nr_groups))
if (do_read_u32(ff->fd, ff->ph, &nr_groups))
return -1;
ph->env.nr_groups = nr_groups;
ff->ph->env.nr_groups = nr_groups;
if (!nr_groups) {
pr_debug("group desc not available\n");
return 0;
@ -1965,21 +1956,21 @@ static int process_group_desc(struct perf_file_section *section __maybe_unused,
return -1;
for (i = 0; i < nr_groups; i++) {
desc[i].name = do_read_string(fd, ph);
desc[i].name = do_read_string(ff->fd, ff->ph);
if (!desc[i].name)
goto out_free;
if (do_read_u32(fd, ph, &desc[i].leader_idx))
if (do_read_u32(ff->fd, ff->ph, &desc[i].leader_idx))
goto out_free;
if (do_read_u32(fd, ph, &desc[i].nr_members))
if (do_read_u32(ff->fd, ff->ph, &desc[i].nr_members))
goto out_free;
}
/*
* Rebuild group relationship based on the group_desc
*/
session = container_of(ph, struct perf_session, header);
session = container_of(ff->ph, struct perf_session, header);
session->evlist->nr_groups = nr_groups;
i = nr = 0;
@ -2023,36 +2014,34 @@ out_free:
return ret;
}
static int process_auxtrace(struct perf_file_section *section,
struct perf_header *ph, int fd,
void *data __maybe_unused)
static int process_auxtrace(struct perf_file_section *section __maybe_unused,
struct feat_fd *ff, void *data __maybe_unused)
{
struct perf_session *session;
int err;
session = container_of(ph, struct perf_session, header);
session = container_of(ff->ph, struct perf_session, header);
err = auxtrace_index__process(fd, section->size, session,
ph->needs_swap);
err = auxtrace_index__process(ff->fd, section->size, session,
ff->ph->needs_swap);
if (err < 0)
pr_err("Failed to process auxtrace index\n");
return err;
}
static int process_cache(struct perf_file_section *section __maybe_unused,
struct perf_header *ph __maybe_unused, int fd __maybe_unused,
void *data __maybe_unused)
struct feat_fd *ff, void *data __maybe_unused)
{
struct cpu_cache_level *caches;
u32 cnt, i, version;
if (do_read_u32(fd, ph, &version))
if (do_read_u32(ff->fd, ff->ph, &version))
return -1;
if (version != 1)
return -1;
if (do_read_u32(fd, ph, &cnt))
if (do_read_u32(ff->fd, ff->ph, &cnt))
return -1;
caches = zalloc(sizeof(*caches) * cnt);
@ -2063,7 +2052,7 @@ static int process_cache(struct perf_file_section *section __maybe_unused,
struct cpu_cache_level c;
#define _R(v) \
if (do_read_u32(fd, ph, &c.v))\
if (do_read_u32(ff->fd, ff->ph, &c.v))\
goto out_free_caches; \
_R(level)
@ -2072,9 +2061,9 @@ static int process_cache(struct perf_file_section *section __maybe_unused,
_R(ways)
#undef _R
#define _R(v) \
c.v = do_read_string(fd, ph); \
if (!c.v) \
#define _R(v) \
c.v = do_read_string(ff->fd, ff->ph); \
if (!c.v) \
goto out_free_caches;
_R(type)
@ -2085,8 +2074,8 @@ static int process_cache(struct perf_file_section *section __maybe_unused,
caches[i] = c;
}
ph->env.caches = caches;
ph->env.caches_cnt = cnt;
ff->ph->env.caches = caches;
ff->ph->env.caches_cnt = cnt;
return 0;
out_free_caches:
free(caches);
@ -2097,7 +2086,7 @@ struct feature_ops {
int (*write)(struct feat_fd *ff, struct perf_evlist *evlist);
void (*print)(struct feat_fd *ff, FILE *fp);
int (*process)(struct perf_file_section *section,
struct perf_header *h, int fd, void *data);
struct feat_fd *ff, void *data);
const char *name;
bool full_only;
};
@ -2628,6 +2617,11 @@ static int perf_file_section__process(struct perf_file_section *section,
struct perf_header *ph,
int feat, int fd, void *data)
{
struct feat_fd ff = {
.fd = fd,
.ph = ph,
};
if (lseek(fd, section->offset, SEEK_SET) == (off_t)-1) {
pr_debug("Failed to lseek to %" PRIu64 " offset for feature "
"%d, continuing...\n", section->offset, feat);
@ -2642,7 +2636,7 @@ static int perf_file_section__process(struct perf_file_section *section,
if (!feat_ops[feat].process)
return 0;
return feat_ops[feat].process(section, ph, fd, data);
return feat_ops[feat].process(section, &ff, data);
}
static int perf_file_header__read_pipe(struct perf_pipe_file_header *header,