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Message-Id: <20170518041602.28689-6-davidcc@google.com>
Date: Wed, 17 May 2017 21:16:00 -0700
From: David Carrillo-Cisneros <davidcc@...gle.com>
To: linux-kernel@...r.kernel.org
Cc: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Andi Kleen <ak@...ux.intel.com>, Simon Que <sque@...omium.org>,
Wang Nan <wangnan0@...wei.com>, Jiri Olsa <jolsa@...nel.org>,
He Kuang <hekuang@...wei.com>,
Masami Hiramatsu <mhiramat@...nel.org>,
David Ahern <dsa@...ulusnetworks.com>,
Namhyung Kim <namhyung@...nel.org>,
Stephane Eranian <eranian@...gle.com>,
Paul Turner <pjt@...gle.com>,
David Carrillo-Cisneros <davidcc@...gle.com>
Subject: [PATCH 5/7] perf header: use struct feat_fd for process and read
As preparation for using header records in pipe mode, replace
int fd with struct feat_fd fd in process and read functions for
all header record types.
To reduce the boiler plate, define and use the FEAT_PROCESS_STR_FUN
macro for the common case of header records that are a simple string.
Signed-off-by: David Carrillo-Cisneros <davidcc@...gle.com>
---
tools/perf/util/header.c | 405 ++++++++++++++++++-----------------------------
tools/perf/util/header.h | 1 +
2 files changed, 156 insertions(+), 250 deletions(-)
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index e28770d12c1c..981f5e9685e2 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -141,27 +141,67 @@ static int do_write_string(struct feat_fd *fd, const char *str)
return write_padded(fd, str, olen, len);
}
-static char *do_read_string(int fd, struct perf_header *ph)
+static int __do_read(struct feat_fd *fd, void *addr, ssize_t size)
+{
+ if (!fd->buf) {
+ ssize_t ret = readn(fd->fd, addr, size);
+
+ if (ret != (ssize_t)size)
+ return ret < 0 ? (int)ret : -1;
+ return 0;
+ }
+
+ assert((ssize_t)fd->size > fd->offset);
+ if (size > (ssize_t)fd->size - fd->offset)
+ return -1;
+
+ memcpy(addr, fd->buf + fd->offset, size);
+ fd->offset += size;
+
+ return 0;
+}
+
+static int do_read_u32(struct feat_fd *fd, u32 *addr)
+{
+ int ret;
+
+ ret = __do_read(fd, addr, sizeof(*addr));
+ if (ret)
+ return ret;
+
+ if (fd->ph->needs_swap)
+ *addr = bswap_32(*addr);
+ return 0;
+}
+
+static int do_read_u64(struct feat_fd *fd, u64 *addr)
+{
+ int ret;
+
+ ret = __do_read(fd, addr, sizeof(*addr));
+ if (ret)
+ return ret;
+
+ if (fd->ph->needs_swap)
+ *addr = bswap_64(*addr);
+ return 0;
+}
+
+static char *do_read_string(struct feat_fd *fd)
{
- ssize_t sz, ret;
u32 len;
char *buf;
- sz = readn(fd, &len, sizeof(len));
- if (sz < (ssize_t)sizeof(len))
+ if (do_read_u32(fd, &len))
return NULL;
- if (ph->needs_swap)
- len = bswap_32(len);
-
buf = malloc(len);
if (!buf)
return NULL;
- ret = readn(fd, buf, len);
- if (ret == (ssize_t)len) {
+ if (!__do_read(fd, buf, len)) {
/*
- * strings are padded by zeroes
+ * note that strings are padded by zeroes
* thus the actual strlen of buf
* may be less than len
*/
@@ -1207,8 +1247,7 @@ static void free_event_desc(struct perf_evsel *events)
free(events);
}
-static struct perf_evsel *
-read_event_desc(struct perf_header *ph, int fd)
+static struct perf_evsel *read_event_desc(struct feat_fd *fd)
{
struct perf_evsel *evsel, *events = NULL;
u64 *id;
@@ -1218,20 +1257,12 @@ read_event_desc(struct perf_header *ph, int fd)
size_t msz;
/* number of events */
- ret = readn(fd, &nre, sizeof(nre));
- if (ret != (ssize_t)sizeof(nre))
+ if (do_read_u32(fd, &nre))
goto error;
- if (ph->needs_swap)
- nre = bswap_32(nre);
-
- ret = readn(fd, &sz, sizeof(sz));
- if (ret != (ssize_t)sizeof(sz))
+ if (do_read_u32(fd, &sz))
goto error;
- if (ph->needs_swap)
- sz = bswap_32(sz);
-
/* buffer to hold on file attr struct */
buf = malloc(sz);
if (!buf)
@@ -1253,25 +1284,22 @@ read_event_desc(struct perf_header *ph, int fd)
* must read entire on-file attr struct to
* sync up with layout.
*/
- ret = readn(fd, buf, sz);
+ ret = __do_read(fd, buf, sz);
if (ret != (ssize_t)sz)
goto error;
- if (ph->needs_swap)
+ if (fd->ph->needs_swap)
perf_event__attr_swap(buf);
memcpy(&evsel->attr, buf, msz);
- ret = readn(fd, &nr, sizeof(nr));
- if (ret != (ssize_t)sizeof(nr))
+ if (do_read_u32(fd, &nr))
goto error;
- if (ph->needs_swap) {
- nr = bswap_32(nr);
+ if (fd->ph->needs_swap)
evsel->needs_swap = true;
- }
- evsel->name = do_read_string(fd, ph);
+ evsel->name = do_read_string(fd);
if (!nr)
continue;
@@ -1283,11 +1311,8 @@ read_event_desc(struct perf_header *ph, int fd)
evsel->id = id;
for (j = 0 ; j < nr; j++) {
- ret = readn(fd, id, sizeof(*id));
- if (ret != (ssize_t)sizeof(*id))
+ if (do_read_u64(fd, id))
goto error;
- if (ph->needs_swap)
- *id = bswap_64(*id);
id++;
}
}
@@ -1308,7 +1333,7 @@ static int __desc_attr__fprintf(FILE *fp, const char *name, const char *val,
static void print_event_desc(struct feat_fd *fd, FILE *fp)
{
- struct perf_evsel *evsel, *events = read_event_desc(fd->ph, fd->fd);
+ struct perf_evsel *evsel, *events = read_event_desc(fd);
u32 j;
u64 *id;
@@ -1598,113 +1623,61 @@ static int perf_header__read_build_ids(struct perf_header *header,
return err;
}
-static int process_tracing_data(struct perf_file_section *section __maybe_unused,
- struct perf_header *ph __maybe_unused,
- int fd, void *data)
-{
- ssize_t ret = trace_report(fd, data, false);
- return ret < 0 ? -1 : 0;
+/* 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 feat_fd *fd, void *data __maybe_unused) \
+{\
+ fd->ph->env.__feat_env = do_read_string(fd); \
+ return fd->ph->env.__feat_env ? 0 : -ENOMEM; \
}
-static int process_build_id(struct perf_file_section *section,
- struct perf_header *ph, int fd,
- void *data __maybe_unused)
+FEAT_PROCESS_STR_FUN(hostname, hostname);
+FEAT_PROCESS_STR_FUN(osrelease, os_release);
+FEAT_PROCESS_STR_FUN(version, version);
+FEAT_PROCESS_STR_FUN(arch, arch);
+FEAT_PROCESS_STR_FUN(cpudesc, cpu_desc);
+FEAT_PROCESS_STR_FUN(cpuid, cpuid);
+
+static int process_build_id(struct feat_fd *fd, void *data __maybe_unused)
{
- if (perf_header__read_build_ids(ph, fd, section->offset, section->size))
+ if (perf_header__read_build_ids(fd->ph, fd->fd, fd->offset, fd->size))
pr_debug("Failed to read buildids, continuing...\n");
return 0;
}
-static int process_hostname(struct perf_file_section *section __maybe_unused,
- struct perf_header *ph, int fd,
- void *data __maybe_unused)
-{
- ph->env.hostname = do_read_string(fd, ph);
- return ph->env.hostname ? 0 : -ENOMEM;
-}
-
-static int process_osrelease(struct perf_file_section *section __maybe_unused,
- struct perf_header *ph, int fd,
- void *data __maybe_unused)
-{
- ph->env.os_release = do_read_string(fd, ph);
- return ph->env.os_release ? 0 : -ENOMEM;
-}
-
-static int process_version(struct perf_file_section *section __maybe_unused,
- struct perf_header *ph, int fd,
- void *data __maybe_unused)
+static int process_tracing_data(struct feat_fd *fd, void *data)
{
- ph->env.version = do_read_string(fd, ph);
- return ph->env.version ? 0 : -ENOMEM;
-}
+ ssize_t ret = trace_report(fd->fd, data, false);
-static int process_arch(struct perf_file_section *section __maybe_unused,
- struct perf_header *ph, int fd,
- void *data __maybe_unused)
-{
- ph->env.arch = do_read_string(fd, ph);
- return ph->env.arch ? 0 : -ENOMEM;
+ return ret < 0 ? -1 : 0;
}
-static int process_nrcpus(struct perf_file_section *section __maybe_unused,
- struct perf_header *ph, int fd,
- void *data __maybe_unused)
+static int process_nrcpus(struct feat_fd *fd, void *data __maybe_unused)
{
- ssize_t ret;
- u32 nr;
-
- ret = readn(fd, &nr, sizeof(nr));
- if (ret != sizeof(nr))
- return -1;
-
- if (ph->needs_swap)
- nr = bswap_32(nr);
-
- ph->env.nr_cpus_avail = nr;
-
- ret = readn(fd, &nr, sizeof(nr));
- if (ret != sizeof(nr))
- return -1;
+ int ret;
+ u32 nr_cpus_avail, nr_cpus_online;
- if (ph->needs_swap)
- nr = bswap_32(nr);
+ ret = do_read_u32(fd, &nr_cpus_avail);
+ if (ret)
+ return ret;
- ph->env.nr_cpus_online = nr;
+ ret = do_read_u32(fd, &nr_cpus_online);
+ if (ret)
+ return ret;
+ fd->ph->env.nr_cpus_avail = (int)nr_cpus_avail;
+ fd->ph->env.nr_cpus_online = (int)nr_cpus_online;
return 0;
}
-static int process_cpudesc(struct perf_file_section *section __maybe_unused,
- struct perf_header *ph, int fd,
- void *data __maybe_unused)
-{
- ph->env.cpu_desc = do_read_string(fd, ph);
- return ph->env.cpu_desc ? 0 : -ENOMEM;
-}
-
-static int process_cpuid(struct perf_file_section *section __maybe_unused,
- struct perf_header *ph, int fd,
- void *data __maybe_unused)
-{
- ph->env.cpuid = do_read_string(fd, ph);
- return ph->env.cpuid ? 0 : -ENOMEM;
-}
-
-static int process_total_mem(struct perf_file_section *section __maybe_unused,
- struct perf_header *ph, int fd,
- void *data __maybe_unused)
+static int process_total_mem(struct feat_fd *fd, void *data __maybe_unused)
{
- uint64_t mem;
- ssize_t ret;
+ u64 total_mem;
+ int ret;
- ret = readn(fd, &mem, sizeof(mem));
- if (ret != sizeof(mem))
+ ret = do_read_u64(fd, &total_mem);
+ if (ret)
return -1;
-
- if (ph->needs_swap)
- mem = bswap_64(mem);
-
- ph->env.total_mem = mem;
+ fd->ph->env.total_mem = (unsigned long long)total_mem;
return 0;
}
@@ -1741,17 +1714,15 @@ 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)
+process_event_desc(struct feat_fd *fd, 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(fd);
if (!events)
return 0;
- session = container_of(header, struct perf_session, header);
+ session = container_of(fd->ph, struct perf_session, header);
for (evsel = events; evsel->attr.size; evsel++)
perf_evlist__set_event_name(session->evlist, evsel);
@@ -1760,24 +1731,17 @@ 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 feat_fd *fd, void *data __maybe_unused)
{
- ssize_t ret;
char *str, *cmdline = NULL, **argv = NULL;
u32 nr, i, len = 0;
- ret = readn(fd, &nr, sizeof(nr));
- if (ret != sizeof(nr))
+ if (do_read_u32(fd, &nr))
return -1;
- if (ph->needs_swap)
- nr = bswap_32(nr);
-
- ph->env.nr_cmdline = nr;
+ fd->ph->env.nr_cmdline = nr;
- cmdline = zalloc(section->size + nr + 1);
+ cmdline = zalloc(fd->size + nr + 1);
if (!cmdline)
return -1;
@@ -1786,7 +1750,7 @@ 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(fd);
if (!str)
goto error;
@@ -1795,8 +1759,8 @@ 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;
+ fd->ph->env.cmdline = cmdline;
+ fd->ph->env.cmdline_argv = (const char **) argv;
return 0;
error:
@@ -1805,65 +1769,51 @@ static int process_cmdline(struct perf_file_section *section,
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 feat_fd *fd, void *data __maybe_unused)
{
- ssize_t ret;
u32 nr, i;
char *str;
struct strbuf sb;
- int cpu_nr = ph->env.nr_cpus_avail;
- u64 size = 0;
+ int cpu_nr = fd->ph->env.nr_cpus_avail;
+ struct perf_header *ph = fd->ph;
+ u64 start_offset = fd->offset;
ph->env.cpu = calloc(cpu_nr, sizeof(*ph->env.cpu));
if (!ph->env.cpu)
return -1;
- ret = readn(fd, &nr, sizeof(nr));
- if (ret != sizeof(nr))
+ if (do_read_u32(fd, &nr))
goto free_cpu;
- if (ph->needs_swap)
- nr = bswap_32(nr);
-
ph->env.nr_sibling_cores = nr;
- size += sizeof(u32);
if (strbuf_init(&sb, 128) < 0)
goto free_cpu;
for (i = 0; i < nr; i++) {
- str = do_read_string(fd, ph);
+ str = do_read_string(fd);
if (!str)
goto error;
/* include a NULL character at the end */
if (strbuf_add(&sb, str, strlen(str) + 1) < 0)
goto error;
- size += string_size(str);
free(str);
}
ph->env.sibling_cores = strbuf_detach(&sb, NULL);
- ret = readn(fd, &nr, sizeof(nr));
- if (ret != sizeof(nr))
+ if (do_read_u32(fd, &nr))
return -1;
- if (ph->needs_swap)
- nr = bswap_32(nr);
-
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(fd);
if (!str)
goto error;
/* include a NULL character at the end */
if (strbuf_add(&sb, str, strlen(str) + 1) < 0)
goto error;
- size += string_size(str);
free(str);
}
ph->env.sibling_threads = strbuf_detach(&sb, NULL);
@@ -1872,28 +1822,20 @@ static int process_cpu_topology(struct perf_file_section *section,
* The header may be from old perf,
* which doesn't include core id and socket id information.
*/
- if (section->size <= size) {
+ if (fd->size <= fd->offset - start_offset) {
zfree(&ph->env.cpu);
return 0;
}
for (i = 0; i < (u32)cpu_nr; i++) {
- ret = readn(fd, &nr, sizeof(nr));
- if (ret != sizeof(nr))
+ if (do_read_u32(fd, &nr))
goto free_cpu;
- if (ph->needs_swap)
- nr = bswap_32(nr);
-
ph->env.cpu[i].core_id = nr;
- ret = readn(fd, &nr, sizeof(nr));
- if (ret != sizeof(nr))
+ if (do_read_u32(fd, &nr))
goto free_cpu;
- if (ph->needs_swap)
- nr = bswap_32(nr);
-
if (nr != (u32)-1 && nr > (u32)cpu_nr) {
pr_debug("socket_id number is too big."
"You may need to upgrade the perf tool.\n");
@@ -1912,23 +1854,17 @@ static int process_cpu_topology(struct perf_file_section *section,
return -1;
}
-static int process_numa_topology(struct perf_file_section *section __maybe_unused,
- struct perf_header *ph, int fd,
- void *data __maybe_unused)
+static int process_numa_topology(struct feat_fd *fd, void *data __maybe_unused)
{
+ struct perf_header *ph = fd->ph;
struct numa_node *nodes, *n;
- ssize_t ret;
u32 nr, i;
char *str;
/* nr nodes */
- ret = readn(fd, &nr, sizeof(nr));
- if (ret != sizeof(nr))
+ if (do_read_u32(fd, &nr))
return -1;
- if (ph->needs_swap)
- nr = bswap_32(nr);
-
nodes = zalloc(sizeof(*nodes) * nr);
if (!nodes)
return -ENOMEM;
@@ -1937,25 +1873,16 @@ static int process_numa_topology(struct perf_file_section *section __maybe_unuse
n = &nodes[i];
/* node number */
- ret = readn(fd, &n->node, sizeof(u32));
- if (ret != sizeof(n->node))
+ if (do_read_u32(fd, &n->node))
goto error;
- ret = readn(fd, &n->mem_total, sizeof(u64));
- if (ret != sizeof(u64))
+ if (do_read_u64(fd, &n->mem_total))
goto error;
- ret = readn(fd, &n->mem_free, sizeof(u64));
- if (ret != sizeof(u64))
+ if (do_read_u64(fd, &n->mem_free))
goto error;
- if (ph->needs_swap) {
- n->node = bswap_32(n->node);
- n->mem_total = bswap_64(n->mem_total);
- n->mem_free = bswap_64(n->mem_free);
- }
-
- str = do_read_string(fd, ph);
+ str = do_read_string(fd);
if (!str)
goto error;
@@ -1974,23 +1901,17 @@ static int process_numa_topology(struct perf_file_section *section __maybe_unuse
return -1;
}
-static int process_pmu_mappings(struct perf_file_section *section __maybe_unused,
- struct perf_header *ph, int fd,
- void *data __maybe_unused)
+static int process_pmu_mappings(struct feat_fd *fd, void *data __maybe_unused)
{
- ssize_t ret;
+ struct perf_header *ph = fd->ph;
char *name;
u32 pmu_num;
u32 type;
struct strbuf sb;
- ret = readn(fd, &pmu_num, sizeof(pmu_num));
- if (ret != sizeof(pmu_num))
+ if (do_read_u32(fd, &pmu_num))
return -1;
- if (ph->needs_swap)
- pmu_num = bswap_32(pmu_num);
-
if (!pmu_num) {
pr_debug("pmu mappings not available\n");
return 0;
@@ -2001,12 +1922,10 @@ static int process_pmu_mappings(struct perf_file_section *section __maybe_unused
return -1;
while (pmu_num) {
- if (readn(fd, &type, sizeof(type)) != sizeof(type))
+ if (do_read_u32(fd, &type))
goto error;
- if (ph->needs_swap)
- type = bswap_32(type);
- name = do_read_string(fd, ph);
+ name = do_read_string(fd);
if (!name)
goto error;
@@ -2030,10 +1949,9 @@ static int process_pmu_mappings(struct perf_file_section *section __maybe_unused
return -1;
}
-static int process_group_desc(struct perf_file_section *section __maybe_unused,
- struct perf_header *ph, int fd,
- void *data __maybe_unused)
+static int process_group_desc(struct feat_fd *fd, void *data __maybe_unused)
{
+ struct perf_header *ph = fd->ph;
size_t ret = -1;
u32 i, nr, nr_groups;
struct perf_session *session;
@@ -2044,12 +1962,9 @@ static int process_group_desc(struct perf_file_section *section __maybe_unused,
u32 nr_members;
} *desc;
- if (readn(fd, &nr_groups, sizeof(nr_groups)) != sizeof(nr_groups))
+ if (do_read_u32(fd, &nr_groups))
return -1;
- if (ph->needs_swap)
- nr_groups = bswap_32(nr_groups);
-
ph->env.nr_groups = nr_groups;
if (!nr_groups) {
pr_debug("group desc not available\n");
@@ -2061,20 +1976,15 @@ 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(fd);
if (!desc[i].name)
goto out_free;
- if (readn(fd, &desc[i].leader_idx, sizeof(u32)) != sizeof(u32))
+ if (do_read_u32(fd, &desc[i].leader_idx))
goto out_free;
- if (readn(fd, &desc[i].nr_members, sizeof(u32)) != sizeof(u32))
+ if (do_read_u32(fd, &desc[i].nr_members))
goto out_free;
-
- if (ph->needs_swap) {
- desc[i].leader_idx = bswap_32(desc[i].leader_idx);
- desc[i].nr_members = bswap_32(desc[i].nr_members);
- }
}
/*
@@ -2124,44 +2034,35 @@ static int process_group_desc(struct perf_file_section *section __maybe_unused,
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 feat_fd *fd, void *data __maybe_unused)
{
struct perf_session *session;
int err;
- session = container_of(ph, struct perf_session, header);
+ session = container_of(fd->ph, struct perf_session, header);
- err = auxtrace_index__process(fd, section->size, session,
- ph->needs_swap);
+ err = auxtrace_index__process(fd->fd, fd->size, session,
+ fd->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)
+static int process_cache(struct feat_fd *fd, void *data __maybe_unused)
{
struct cpu_cache_level *caches;
u32 cnt, i, version;
- if (readn(fd, &version, sizeof(version)) != sizeof(version))
+ pr_err("process_cache\n");
+ if (do_read_u32(fd, &version))
return -1;
- if (ph->needs_swap)
- version = bswap_32(version);
-
if (version != 1)
return -1;
- if (readn(fd, &cnt, sizeof(cnt)) != sizeof(cnt))
+ if (do_read_u32(fd, &cnt))
return -1;
- if (ph->needs_swap)
- cnt = bswap_32(cnt);
-
caches = zalloc(sizeof(*caches) * cnt);
if (!caches)
return -1;
@@ -2170,10 +2071,8 @@ static int process_cache(struct perf_file_section *section __maybe_unused,
struct cpu_cache_level c;
#define _R(v) \
- if (readn(fd, &c.v, sizeof(u32)) != sizeof(u32))\
+ if (do_read_u32(fd, &c.v))\
goto out_free_caches; \
- if (ph->needs_swap) \
- c.v = bswap_32(c.v); \
_R(level)
_R(line_size)
@@ -2182,7 +2081,7 @@ static int process_cache(struct perf_file_section *section __maybe_unused,
#undef _R
#define _R(v) \
- c.v = do_read_string(fd, ph); \
+ c.v = do_read_string(fd); \
if (!c.v) \
goto out_free_caches;
@@ -2194,8 +2093,8 @@ static int process_cache(struct perf_file_section *section __maybe_unused,
caches[i] = c;
}
- ph->env.caches = caches;
- ph->env.caches_cnt = cnt;
+ fd->ph->env.caches = caches;
+ fd->ph->env.caches_cnt = cnt;
return 0;
out_free_caches:
free(caches);
@@ -2205,8 +2104,7 @@ static int process_cache(struct perf_file_section *section __maybe_unused,
struct feature_ops {
int (*write)(struct feat_fd *fd, struct perf_evlist *evlist);
void (*print)(struct feat_fd *fd, FILE *fp);
- int (*process)(struct perf_file_section *section,
- struct perf_header *h, int fd, void *data);
+ int (*process)(struct feat_fd *fd, void *data);
const char *name;
bool full_only;
};
@@ -2747,6 +2645,13 @@ static int perf_file_section__process(struct perf_file_section *section,
struct perf_header *ph,
int feat, int fd, void *data)
{
+ struct feat_fd fdd = {
+ .fd = fd,
+ .ph = ph,
+ .size = section->size,
+ .offset = section->offset,
+ };
+
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);
@@ -2761,7 +2666,7 @@ 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(&fdd, data);
}
static int perf_file_header__read_pipe(struct perf_pipe_file_header *header,
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index 9d8dcd5eb727..86ab723cbee4 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -78,6 +78,7 @@ struct perf_header {
struct perf_env env;
};
+struct feat_fd;
struct perf_evlist;
struct perf_session;
--
2.13.0.303.g4ebf302169-goog
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