64 files changed, 1213 insertions, 511 deletions

diff --git a/tools/lib/api/fs/debugfs.c b/tools/lib/api/fs/debugfs.c
index 86ea2d7b8845..d2b18e887071 100644
--- a/tools/lib/api/fs/debugfs.c
+++ b/tools/lib/api/fs/debugfs.c
@@ -1,3 +1,4 @@
+#define _GNU_SOURCE
 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -98,3 +99,45 @@ char *debugfs_mount(const char *mountpoint)
 out:
         return debugfs_mountpoint;
 }
+
+int debugfs__strerror_open(int err, char *buf, size_t size, const char *filename)
+{
+        char sbuf[128];
+
+        switch (err) {
+        case ENOENT:
+                if (debugfs_found) {
+                        snprintf(buf, size,
+                                 "Error:\tFile %s/%s not found.\n"
+                                 "Hint:\tPerhaps this kernel misses some CONFIG_ setting to enable this feature?.\n",
+                                 debugfs_mountpoint, filename);
+                        break;
+                }
+                snprintf(buf, size, "%s",
+                         "Error:\tUnable to find debugfs\n"
+                         "Hint:\tWas your kernel compiled with debugfs support?\n"
+                         "Hint:\tIs the debugfs filesystem mounted?\n"
+                         "Hint:\tTry 'sudo mount -t debugfs nodev /sys/kernel/debug'");
+                break;
+        case EACCES:
+                snprintf(buf, size,
+                         "Error:\tNo permissions to read %s/%s\n"
+                         "Hint:\tTry 'sudo mount -o remount,mode=755 %s'\n",
+                         debugfs_mountpoint, filename, debugfs_mountpoint);
+                break;
+        default:
+                snprintf(buf, size, "%s", strerror_r(err, sbuf, sizeof(sbuf)));
+                break;
+        }
+
+        return 0;
+}
+
+int debugfs__strerror_open_tp(int err, char *buf, size_t size, const char *sys, const char *name)
+{
+        char path[PATH_MAX];
+
+        snprintf(path, PATH_MAX, "tracing/events/%s/%s", sys, name ?: "*");
+
+        return debugfs__strerror_open(err, buf, size, path);
+}
diff --git a/tools/lib/api/fs/debugfs.h b/tools/lib/api/fs/debugfs.h
index f19d3df9609d..0739881a9897 100644
--- a/tools/lib/api/fs/debugfs.h
+++ b/tools/lib/api/fs/debugfs.h
@@ -26,4 +26,7 @@ char *debugfs_mount(const char *mountpoint);
 
 extern char debugfs_mountpoint[];
 
+int debugfs__strerror_open(int err, char *buf, size_t size, const char *filename);
+int debugfs__strerror_open_tp(int err, char *buf, size_t size, const char *sys, const char *name);
+
 #endif /* __API_DEBUGFS_H__ */
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index cf3a44bf1ec3..afe20ed9fac8 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -32,6 +32,7 @@
 #include <stdint.h>
 #include <limits.h>
 
+#include <netinet/ip6.h>
 #include "event-parse.h"
 #include "event-utils.h"
 
@@ -4149,6 +4150,324 @@ static void print_mac_arg(struct trace_seq *s, int mac, void *data, int size,
         trace_seq_printf(s, fmt, buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
 }
 
+static void print_ip4_addr(struct trace_seq *s, char i, unsigned char *buf)
+{
+        const char *fmt;
+
+        if (i == 'i')
+                fmt = "%03d.%03d.%03d.%03d";
+        else
+                fmt = "%d.%d.%d.%d";
+
+        trace_seq_printf(s, fmt, buf[0], buf[1], buf[2], buf[3]);
+}
+
+static inline bool ipv6_addr_v4mapped(const struct in6_addr *a)
+{
+        return ((unsigned long)(a->s6_addr32[0] | a->s6_addr32[1]) |
+                (unsigned long)(a->s6_addr32[2] ^ htonl(0x0000ffff))) == 0UL;
+}
+
+static inline bool ipv6_addr_is_isatap(const struct in6_addr *addr)
+{
+        return (addr->s6_addr32[2] | htonl(0x02000000)) == htonl(0x02005EFE);
+}
+
+static void print_ip6c_addr(struct trace_seq *s, unsigned char *addr)
+{
+        int i, j, range;
+        unsigned char zerolength[8];
+        int longest = 1;
+        int colonpos = -1;
+        uint16_t word;
+        uint8_t hi, lo;
+        bool needcolon = false;
+        bool useIPv4;
+        struct in6_addr in6;
+
+        memcpy(&in6, addr, sizeof(struct in6_addr));
+
+        useIPv4 = ipv6_addr_v4mapped(&in6) || ipv6_addr_is_isatap(&in6);
+
+        memset(zerolength, 0, sizeof(zerolength));
+
+        if (useIPv4)
+                range = 6;
+        else
+                range = 8;
+
+        /* find position of longest 0 run */
+        for (i = 0; i < range; i++) {
+                for (j = i; j < range; j++) {
+                        if (in6.s6_addr16[j] != 0)
+                                break;
+                        zerolength[i]++;
+                }
+        }
+        for (i = 0; i < range; i++) {
+                if (zerolength[i] > longest) {
+                        longest = zerolength[i];
+                        colonpos = i;
+                }
+        }
+        if (longest == 1)               /* don't compress a single 0 */
+                colonpos = -1;
+
+        /* emit address */
+        for (i = 0; i < range; i++) {
+                if (i == colonpos) {
+                        if (needcolon || i == 0)
+                                trace_seq_printf(s, ":");
+                        trace_seq_printf(s, ":");
+                        needcolon = false;
+                        i += longest - 1;
+                        continue;
+                }
+                if (needcolon) {
+                        trace_seq_printf(s, ":");
+                        needcolon = false;
+                }
+                /* hex u16 without leading 0s */
+                word = ntohs(in6.s6_addr16[i]);
+                hi = word >> 8;
+                lo = word & 0xff;
+                if (hi)
+                        trace_seq_printf(s, "%x%02x", hi, lo);
+                else
+                        trace_seq_printf(s, "%x", lo);
+
+                needcolon = true;
+        }
+
+        if (useIPv4) {
+                if (needcolon)
+                        trace_seq_printf(s, ":");
+                print_ip4_addr(s, 'I', &in6.s6_addr[12]);
+        }
+
+        return;
+}
+
+static void print_ip6_addr(struct trace_seq *s, char i, unsigned char *buf)
+{
+        int j;
+
+        for (j = 0; j < 16; j += 2) {
+                trace_seq_printf(s, "%02x%02x", buf[j], buf[j+1]);
+                if (i == 'I' && j < 14)
+                        trace_seq_printf(s, ":");
+        }
+}
+
+/*
+ * %pi4   print an IPv4 address with leading zeros
+ * %pI4   print an IPv4 address without leading zeros
+ * %pi6   print an IPv6 address without colons
+ * %pI6   print an IPv6 address with colons
+ * %pI6c  print an IPv6 address in compressed form with colons
+ * %pISpc print an IP address based on sockaddr; p adds port.
+ */
+static int print_ipv4_arg(struct trace_seq *s, const char *ptr, char i,
+                          void *data, int size, struct event_format *event,
+                          struct print_arg *arg)
+{
+        unsigned char *buf;
+
+        if (arg->type == PRINT_FUNC) {
+                process_defined_func(s, data, size, event, arg);
+                return 0;
+        }
+
+        if (arg->type != PRINT_FIELD) {
+                trace_seq_printf(s, "ARG TYPE NOT FIELD BUT %d", arg->type);
+                return 0;
+        }
+
+        if (!arg->field.field) {
+                arg->field.field =
+                        pevent_find_any_field(event, arg->field.name);
+                if (!arg->field.field) {
+                        do_warning("%s: field %s not found",
+                                   __func__, arg->field.name);
+                        return 0;
+                }
+        }
+
+        buf = data + arg->field.field->offset;
+
+        if (arg->field.field->size != 4) {
+                trace_seq_printf(s, "INVALIDIPv4");
+                return 0;
+        }
+        print_ip4_addr(s, i, buf);
+
+        return 0;
+}
+
+static int print_ipv6_arg(struct trace_seq *s, const char *ptr, char i,
+                          void *data, int size, struct event_format *event,
+                          struct print_arg *arg)
+{
+        char have_c = 0;
+        unsigned char *buf;
+        int rc = 0;
+
+        /* pI6c */
+        if (i == 'I' && *ptr == 'c') {
+                have_c = 1;
+                ptr++;
+                rc++;
+        }
+
+        if (arg->type == PRINT_FUNC) {
+                process_defined_func(s, data, size, event, arg);
+                return rc;
+        }
+
+        if (arg->type != PRINT_FIELD) {
+                trace_seq_printf(s, "ARG TYPE NOT FIELD BUT %d", arg->type);
+                return rc;
+        }
+
+        if (!arg->field.field) {
+                arg->field.field =
+                        pevent_find_any_field(event, arg->field.name);
+                if (!arg->field.field) {
+                        do_warning("%s: field %s not found",
+                                   __func__, arg->field.name);
+                        return rc;
+                }
+        }
+
+        buf = data + arg->field.field->offset;
+
+        if (arg->field.field->size != 16) {
+                trace_seq_printf(s, "INVALIDIPv6");
+                return rc;
+        }
+
+        if (have_c)
+                print_ip6c_addr(s, buf);
+        else
+                print_ip6_addr(s, i, buf);
+
+        return rc;
+}
+
+static int print_ipsa_arg(struct trace_seq *s, const char *ptr, char i,
+                          void *data, int size, struct event_format *event,
+                          struct print_arg *arg)
+{
+        char have_c = 0, have_p = 0;
+        unsigned char *buf;
+        struct sockaddr_storage *sa;
+        int rc = 0;
+
+        /* pISpc */
+        if (i == 'I') {
+                if (*ptr == 'p') {
+                        have_p = 1;
+                        ptr++;
+                        rc++;
+                }
+                if (*ptr == 'c') {
+                        have_c = 1;
+                        ptr++;
+                        rc++;
+                }
+        }
+
+        if (arg->type == PRINT_FUNC) {
+                process_defined_func(s, data, size, event, arg);
+                return rc;
+        }
+
+        if (arg->type != PRINT_FIELD) {
+                trace_seq_printf(s, "ARG TYPE NOT FIELD BUT %d", arg->type);
+                return rc;
+        }
+
+        if (!arg->field.field) {
+                arg->field.field =
+                        pevent_find_any_field(event, arg->field.name);
+                if (!arg->field.field) {
+                        do_warning("%s: field %s not found",
+                                   __func__, arg->field.name);
+                        return rc;
+                }
+        }
+
+        sa = (struct sockaddr_storage *) (data + arg->field.field->offset);
+
+        if (sa->ss_family == AF_INET) {
+                struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
+
+                if (arg->field.field->size < sizeof(struct sockaddr_in)) {
+                        trace_seq_printf(s, "INVALIDIPv4");
+                        return rc;
+                }
+
+                print_ip4_addr(s, i, (unsigned char *) &sa4->sin_addr);
+                if (have_p)
+                        trace_seq_printf(s, ":%d", ntohs(sa4->sin_port));
+
+
+        } else if (sa->ss_family == AF_INET6) {
+                struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
+
+                if (arg->field.field->size < sizeof(struct sockaddr_in6)) {
+                        trace_seq_printf(s, "INVALIDIPv6");
+                        return rc;
+                }
+
+                if (have_p)
+                        trace_seq_printf(s, "[");
+
+                buf = (unsigned char *) &sa6->sin6_addr;
+                if (have_c)
+                        print_ip6c_addr(s, buf);
+                else
+                        print_ip6_addr(s, i, buf);
+
+                if (have_p)
+                        trace_seq_printf(s, "]:%d", ntohs(sa6->sin6_port));
+        }
+
+        return rc;
+}
+
+static int print_ip_arg(struct trace_seq *s, const char *ptr,
+                        void *data, int size, struct event_format *event,
+                        struct print_arg *arg)
+{
+        char i = *ptr;  /* 'i' or 'I' */
+        char ver;
+        int rc = 0;
+
+        ptr++;
+        rc++;
+
+        ver = *ptr;
+        ptr++;
+        rc++;
+
+        switch (ver) {
+        case '4':
+                rc += print_ipv4_arg(s, ptr, i, data, size, event, arg);
+                break;
+        case '6':
+                rc += print_ipv6_arg(s, ptr, i, data, size, event, arg);
+                break;
+        case 'S':
+                rc += print_ipsa_arg(s, ptr, i, data, size, event, arg);
+                break;
+        default:
+                return 0;
+        }
+
+        return rc;
+}
+
 static int is_printable_array(char *p, unsigned int len)
 {
         unsigned int i;
@@ -4337,6 +4656,15 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
                                         ptr++;
                                         arg = arg->next;
                                         break;
+                                } else if (*(ptr+1) == 'I' || *(ptr+1) == 'i') {
+                                        int n;
+
+                                        n = print_ip_arg(s, ptr+1, data, size, event, arg);
+                                        if (n > 0) {
+                                                ptr += n;
+                                                arg = arg->next;
+                                                break;
+                                        }
                                 }
 
                                 /* fall through */
diff --git a/tools/perf/Documentation/perf-buildid-cache.txt b/tools/perf/Documentation/perf-buildid-cache.txt
index fd77d81ea748..0294c57b1f5e 100644
--- a/tools/perf/Documentation/perf-buildid-cache.txt
+++ b/tools/perf/Documentation/perf-buildid-cache.txt
@@ -38,7 +38,7 @@ OPTIONS
 --remove=::
         Remove specified file from the cache.
 -M::
---missing=:: 
+--missing=::
         List missing build ids in the cache for the specified file.
 -u::
 --update::
diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
index cbb4f743d921..3e2aec94f806 100644
--- a/tools/perf/Documentation/perf-list.txt
+++ b/tools/perf/Documentation/perf-list.txt
@@ -89,6 +89,19 @@ raw encoding of 0x1A8 can be used:
 You should refer to the processor specific documentation for getting these
 details. Some of them are referenced in the SEE ALSO section below.
 
+PARAMETERIZED EVENTS
+--------------------
+
+Some pmu events listed by 'perf-list' will be displayed with '?' in them. For
+example:
+
+  hv_gpci/dtbp_ptitc,phys_processor_idx=?/
+
+This means that when provided as an event, a value for '?' must
+also be supplied. For example:
+
+  perf stat -C 0 -e 'hv_gpci/dtbp_ptitc,phys_processor_idx=0x2/' ...
+
 OPTIONS
 -------
 
diff --git a/tools/perf/Documentation/perf-mem.txt b/tools/perf/Documentation/perf-mem.txt
index 1d78a4064da4..43310d8661fe 100644
--- a/tools/perf/Documentation/perf-mem.txt
+++ b/tools/perf/Documentation/perf-mem.txt
@@ -12,11 +12,12 @@ SYNOPSIS
 
 DESCRIPTION
 -----------
-"perf mem -t <TYPE> record" runs a command and gathers memory operation data
+"perf mem record" runs a command and gathers memory operation data
 from it, into perf.data. Perf record options are accepted and are passed through.
 
-"perf mem -t <TYPE> report" displays the result. It invokes perf report with the
-right set of options to display a memory access profile.
+"perf mem report" displays the result. It invokes perf report with the
+right set of options to display a memory access profile. By default, loads
+and stores are sampled. Use the -t option to limit to loads or stores.
 
 Note that on Intel systems the memory latency reported is the use-latency,
 not the pure load (or store latency). Use latency includes any pipeline
@@ -29,7 +30,7 @@ OPTIONS
 
 -t::
 --type=::
-        Select the memory operation type: load or store (default: load)
+        Select the memory operation type: load or store (default: load,store)
 
 -D::
 --dump-raw-samples=::
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index af9a54ece024..31e977459c51 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -33,12 +33,27 @@ OPTIONS
         - a raw PMU event (eventsel+umask) in the form of rNNN where NNN is a
           hexadecimal event descriptor.
 
-        - a hardware breakpoint event in the form of '\mem:addr[:access]'
+        - a symbolically formed PMU event like 'pmu/param1=0x3,param2/' where
+          'param1', 'param2', etc are defined as formats for the PMU in
+          /sys/bus/event_sources/devices/<pmu>/format/*.
+
+        - a symbolically formed event like 'pmu/config=M,config1=N,config3=K/'
+
+          where M, N, K are numbers (in decimal, hex, octal format). Acceptable
+          values for each of 'config', 'config1' and 'config2' are defined by
+          corresponding entries in /sys/bus/event_sources/devices/<pmu>/format/*
+          param1 and param2 are defined as formats for the PMU in:
+          /sys/bus/event_sources/devices/<pmu>/format/*
+
+        - a hardware breakpoint event in the form of '\mem:addr[/len][:access]'
           where addr is the address in memory you want to break in.
           Access is the memory access type (read, write, execute) it can
-          be passed as follows: '\mem:addr[:[r][w][x]]'.
+          be passed as follows: '\mem:addr[:[r][w][x]]'. len is the range,
+          number of bytes from specified addr, which the breakpoint will cover.
           If you want to profile read-write accesses in 0x1000, just set
           'mem:0x1000:rw'.
+          If you want to profile write accesses in [0x1000~1008), just set
+          'mem:0x1000/8:w'.
 
 --filter=<filter>::
         Event filter.
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index 21494806c0ab..a21eec05bc42 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -125,46 +125,46 @@ OPTIONS
         is equivalent to:
 
                 perf script -f trace:<fields> -f sw:<fields> -f hw:<fields>
-    
+
         i.e., the specified fields apply to all event types if the type string
         is not given.
-    
+
         The arguments are processed in the order received. A later usage can
         reset a prior request. e.g.:
-    
+
                 -f trace: -f comm,tid,time,ip,sym
-    
+
         The first -f suppresses trace events (field list is ""), but then the
         second invocation sets the fields to comm,tid,time,ip,sym. In this case a
         warning is given to the user:
-    
+
                 "Overriding previous field request for all events."
-    
+
         Alternatively, consider the order:
-    
+
                 -f comm,tid,time,ip,sym -f trace:
-    
+
         The first -f sets the fields for all events and the second -f
         suppresses trace events. The user is given a warning message about
         the override, and the result of the above is that only S/W and H/W
         events are displayed with the given fields.
-    
+
         For the 'wildcard' option if a user selected field is invalid for an
         event type, a message is displayed to the user that the option is
         ignored for that type. For example:
-    
+
                 $ perf script -f comm,tid,trace
                 'trace' not valid for hardware events. Ignoring.
                 'trace' not valid for software events. Ignoring.
-    
+
         Alternatively, if the type is given an invalid field is specified it
         is an error. For example:
-    
+
         perf script -v -f sw:comm,tid,trace
         'trace' not valid for software events.
-    
+
         At this point usage is displayed, and perf-script exits.
-    
+
         Finally, a user may not set fields to none for all event types.
         i.e., -f "" is not allowed.
 
diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index 29ee857c09c6..04e150d83e7d 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -25,10 +25,22 @@ OPTIONS
 
 -e::
 --event=::
-        Select the PMU event. Selection can be a symbolic event name
-        (use 'perf list' to list all events) or a raw PMU
-        event (eventsel+umask) in the form of rNNN where NNN is a
-         hexadecimal event descriptor.
+        Select the PMU event. Selection can be:
+
+        - a symbolic event name (use 'perf list' to list all events)
+
+        - a raw PMU event (eventsel+umask) in the form of rNNN where NNN is a
+          hexadecimal event descriptor.
+
+        - a symbolically formed event like 'pmu/param1=0x3,param2/' where
+          param1 and param2 are defined as formats for the PMU in
+          /sys/bus/event_sources/devices/<pmu>/format/*
+
+        - a symbolically formed event like 'pmu/config=M,config1=N,config2=K/'
+          where M, N, K are numbers (in decimal, hex, octal format).
+          Acceptable values for each of 'config', 'config1' and 'config2'
+          parameters are defined by corresponding entries in
+          /sys/bus/event_sources/devices/<pmu>/format/*
 
 -i::
 --no-inherit::
diff --git a/tools/perf/bench/futex.h b/tools/perf/bench/futex.h
index 71f2844cf97f..7ed22ff1e1ac 100644
--- a/tools/perf/bench/futex.h
+++ b/tools/perf/bench/futex.h
@@ -68,4 +68,17 @@ futex_cmp_requeue(u_int32_t *uaddr, u_int32_t val, u_int32_t *uaddr2, int nr_wak
                  val, opflags);
 }
 
+#ifndef HAVE_PTHREAD_ATTR_SETAFFINITY_NP
+#include <pthread.h>
+static inline int pthread_attr_setaffinity_np(pthread_attr_t *attr,
+                                              size_t cpusetsize,
+                                              cpu_set_t *cpuset)
+{
+        attr = attr;
+        cpusetsize = cpusetsize;
+        cpuset = cpuset;
+        return 0;
+}
+#endif
+
 #endif /* _FUTEX_H */
diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index 77d5cae54c6a..50e6b66aea1f 100644
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -236,10 +236,10 @@ static bool dso__missing_buildid_cache(struct dso *dso, int parm __maybe_unused)
                 if (errno == ENOENT)
                         return false;
 
-                pr_warning("Problems with %s file, consider removing it from the cache\n", 
+                pr_warning("Problems with %s file, consider removing it from the cache\n",
                            filename);
         } else if (memcmp(dso->build_id, build_id, sizeof(dso->build_id))) {
-                pr_warning("Problems with %s file, consider removing it from the cache\n", 
+                pr_warning("Problems with %s file, consider removing it from the cache\n",
                            filename);
         }
 
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 1fd96c13f199..74aada554b12 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -390,6 +390,15 @@ static void perf_evlist__collapse_resort(struct perf_evlist *evlist)
         }
 }
 
+static struct data__file *fmt_to_data_file(struct perf_hpp_fmt *fmt)
+{
+        struct diff_hpp_fmt *dfmt = container_of(fmt, struct diff_hpp_fmt, fmt);
+        void *ptr = dfmt - dfmt->idx;
+        struct data__file *d = container_of(ptr, struct data__file, fmt);
+
+        return d;
+}
+
 static struct hist_entry*
 get_pair_data(struct hist_entry *he, struct data__file *d)
 {
@@ -407,8 +416,7 @@ get_pair_data(struct hist_entry *he, struct data__file *d)
 static struct hist_entry*
 get_pair_fmt(struct hist_entry *he, struct diff_hpp_fmt *dfmt)
 {
-        void *ptr = dfmt - dfmt->idx;
-        struct data__file *d = container_of(ptr, struct data__file, fmt);
+        struct data__file *d = fmt_to_data_file(&dfmt->fmt);
 
         return get_pair_data(he, d);
 }
@@ -430,7 +438,7 @@ static void hists__baseline_only(struct hists *hists)
                 next = rb_next(&he->rb_node_in);
                 if (!hist_entry__next_pair(he)) {
                         rb_erase(&he->rb_node_in, root);
-                        hist_entry__free(he);
+                        hist_entry__delete(he);
                 }
         }
 }
@@ -448,26 +456,30 @@ static void hists__precompute(struct hists *hists)
         next = rb_first(root);
         while (next != NULL) {
                 struct hist_entry *he, *pair;
+                struct data__file *d;
+                int i;
 
                 he   = rb_entry(next, struct hist_entry, rb_node_in);
                 next = rb_next(&he->rb_node_in);
 
-                pair = get_pair_data(he, &data__files[sort_compute]);
-                if (!pair)
-                        continue;
+                data__for_each_file_new(i, d) {
+                        pair = get_pair_data(he, d);
+                        if (!pair)
+                                continue;
 
-                switch (compute) {
-                case COMPUTE_DELTA:
-                        compute_delta(he, pair);
-                        break;
-                case COMPUTE_RATIO:
-                        compute_ratio(he, pair);
-                        break;
-                case COMPUTE_WEIGHTED_DIFF:
-                        compute_wdiff(he, pair);
-                        break;
-                default:
-                        BUG_ON(1);
+                        switch (compute) {
+                        case COMPUTE_DELTA:
+                                compute_delta(he, pair);
+                                break;
+                        case COMPUTE_RATIO:
+                                compute_ratio(he, pair);
+                                break;
+                        case COMPUTE_WEIGHTED_DIFF:
+                                compute_wdiff(he, pair);
+                                break;
+                        default:
+                                BUG_ON(1);
+                        }
                 }
         }
 }
@@ -517,7 +529,7 @@ __hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right,
 
 static int64_t
 hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right,
-                        int c)
+                        int c, int sort_idx)
 {
         bool pairs_left  = hist_entry__has_pairs(left);
         bool pairs_right = hist_entry__has_pairs(right);
@@ -529,8 +541,8 @@ hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right,
         if (!pairs_left || !pairs_right)
                 return pairs_left ? -1 : 1;
 
-        p_left  = get_pair_data(left,  &data__files[sort_compute]);
-        p_right = get_pair_data(right, &data__files[sort_compute]);
+        p_left  = get_pair_data(left,  &data__files[sort_idx]);
+        p_right = get_pair_data(right, &data__files[sort_idx]);
 
         if (!p_left && !p_right)
                 return 0;
@@ -546,90 +558,102 @@ hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right,
 }
 
 static int64_t
-hist_entry__cmp_nop(struct hist_entry *left __maybe_unused,
+hist_entry__cmp_compute_idx(struct hist_entry *left, struct hist_entry *right,
+                            int c, int sort_idx)
+{
+        struct hist_entry *p_right, *p_left;
+
+        p_left  = get_pair_data(left,  &data__files[sort_idx]);
+        p_right = get_pair_data(right, &data__files[sort_idx]);
+
+        if (!p_left && !p_right)
+                return 0;
+
+        if (!p_left || !p_right)
+                return p_left ? -1 : 1;
+
+        if (c != COMPUTE_DELTA) {
+                /*
+                 * The delta can be computed without the baseline, but
+                 * others are not.  Put those entries which have no
+                 * values below.
+                 */
+                if (left->dummy && right->dummy)
+                        return 0;
+
+                if (left->dummy || right->dummy)
+                        return left->dummy ? 1 : -1;
+        }
+
+        return __hist_entry__cmp_compute(p_left, p_right, c);
+}
+
+static int64_t
+hist_entry__cmp_nop(struct perf_hpp_fmt *fmt __maybe_unused,
+                    struct hist_entry *left __maybe_unused,
                     struct hist_entry *right __maybe_unused)
 {
         return 0;
 }
 
 static int64_t
-hist_entry__cmp_baseline(struct hist_entry *left, struct hist_entry *right)
+hist_entry__cmp_baseline(struct perf_hpp_fmt *fmt __maybe_unused,
+                         struct hist_entry *left, struct hist_entry *right)
 {
-        if (sort_compute)
-                return 0;
-
         if (left->stat.period == right->stat.period)
                 return 0;
         return left->stat.period > right->stat.period ? 1 : -1;
 }
 
 static int64_t
-hist_entry__cmp_delta(struct hist_entry *left, struct hist_entry *right)
+hist_entry__cmp_delta(struct perf_hpp_fmt *fmt,
+                      struct hist_entry *left, struct hist_entry *right)
 {
-        return hist_entry__cmp_compute(right, left, COMPUTE_DELTA);
+        struct data__file *d = fmt_to_data_file(fmt);
+
+        return hist_entry__cmp_compute(right, left, COMPUTE_DELTA, d->idx);
 }
 
 static int64_t
-hist_entry__cmp_ratio(struct hist_entry *left, struct hist_entry *right)
+hist_entry__cmp_ratio(struct perf_hpp_fmt *fmt,
+                      struct hist_entry *left, struct hist_entry *right)
 {
-        return hist_entry__cmp_compute(right, left, COMPUTE_RATIO);
+        struct data__file *d = fmt_to_data_file(fmt);
+
+        return hist_entry__cmp_compute(right, left, COMPUTE_RATIO, d->idx);
 }
 
 static int64_t
-hist_entry__cmp_wdiff(struct hist_entry *left, struct hist_entry *right)
+hist_entry__cmp_wdiff(struct perf_hpp_fmt *fmt,
+                      struct hist_entry *left, struct hist_entry *right)
 {
-        return hist_entry__cmp_compute(right, left, COMPUTE_WEIGHTED_DIFF);
+        struct data__file *d = fmt_to_data_file(fmt);
+
+        return hist_entry__cmp_compute(right, left, COMPUTE_WEIGHTED_DIFF, d->idx);
 }
 
-static void insert_hist_entry_by_compute(struct rb_root *root,
-                                         struct hist_entry *he,
-                                         int c)
+static int64_t
+hist_entry__cmp_delta_idx(struct perf_hpp_fmt *fmt __maybe_unused,
+                          struct hist_entry *left, struct hist_entry *right)
 {
-        struct rb_node **p = &root->rb_node;
-        struct rb_node *parent = NULL;
-        struct hist_entry *iter;
-
-        while (*p != NULL) {
-                parent = *p;
-                iter = rb_entry(parent, struct hist_entry, rb_node);
-                if (hist_entry__cmp_compute(he, iter, c) < 0)
-                        p = &(*p)->rb_left;
-                else
-                        p = &(*p)->rb_right;
-        }
-
-        rb_link_node(&he->rb_node, parent, p);
-        rb_insert_color(&he->rb_node, root);
+        return hist_entry__cmp_compute_idx(right, left, COMPUTE_DELTA,
+                                           sort_compute);
 }
 
-static void hists__compute_resort(struct hists *hists)
+static int64_t
+hist_entry__cmp_ratio_idx(struct perf_hpp_fmt *fmt __maybe_unused,
+                          struct hist_entry *left, struct hist_entry *right)
 {
-        struct rb_root *root;
-        struct rb_node *next;
-
-        if (sort__need_collapse)
-                root = &hists->entries_collapsed;
-        else
-                root = hists->entries_in;
-
-        hists->entries = RB_ROOT;
-        next = rb_first(root);
-
-        hists__reset_stats(hists);
-        hists__reset_col_len(hists);
-
-        while (next != NULL) {
-                struct hist_entry *he;
-
-                he = rb_entry(next, struct hist_entry, rb_node_in);
-                next = rb_next(&he->rb_node_in);
-
-                insert_hist_entry_by_compute(&hists->entries, he, compute);
-                hists__inc_stats(hists, he);
+        return hist_entry__cmp_compute_idx(right, left, COMPUTE_RATIO,
+                                           sort_compute);
+}
 
-                if (!he->filtered)
-                        hists__calc_col_len(hists, he);
-        }
+static int64_t
+hist_entry__cmp_wdiff_idx(struct perf_hpp_fmt *fmt __maybe_unused,
+                          struct hist_entry *left, struct hist_entry *right)
+{
+        return hist_entry__cmp_compute_idx(right, left, COMPUTE_WEIGHTED_DIFF,
+                                           sort_compute);
 }
 
 static void hists__process(struct hists *hists)
@@ -637,12 +661,8 @@ static void hists__process(struct hists *hists)
         if (show_baseline_only)
                 hists__baseline_only(hists);
 
-        if (sort_compute) {
-                hists__precompute(hists);
-                hists__compute_resort(hists);
-        } else {
-                hists__output_resort(hists, NULL);
-        }
+        hists__precompute(hists);
+        hists__output_resort(hists, NULL);
 
         hists__fprintf(hists, true, 0, 0, 0, stdout);
 }
@@ -841,7 +861,7 @@ static int __hpp__color_compare(struct perf_hpp_fmt *fmt,
         char pfmt[20] = " ";
 
         if (!pair)
-                goto dummy_print;
+                goto no_print;
 
         switch (comparison_method) {
         case COMPUTE_DELTA:
@@ -850,8 +870,6 @@ static int __hpp__color_compare(struct perf_hpp_fmt *fmt,
                 else
                         diff = compute_delta(he, pair);
 
-                if (fabs(diff) < 0.01)
-                        goto dummy_print;
                 scnprintf(pfmt, 20, "%%%+d.2f%%%%", dfmt->header_width - 1);
                 return percent_color_snprintf(hpp->buf, hpp->size,
                                         pfmt, diff);
@@ -883,6 +901,9 @@ static int __hpp__color_compare(struct perf_hpp_fmt *fmt,
         }
 dummy_print:
         return scnprintf(hpp->buf, hpp->size, "%*s",
+                        dfmt->header_width, "N/A");
+no_print:
+        return scnprintf(hpp->buf, hpp->size, "%*s",
                         dfmt->header_width, pfmt);
 }
 
@@ -932,14 +953,15 @@ hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair,
                 else
                         diff = compute_delta(he, pair);
 
-                if (fabs(diff) >= 0.01)
-                        scnprintf(buf, size, "%+4.2F%%", diff);
+                scnprintf(buf, size, "%+4.2F%%", diff);
                 break;
 
         case PERF_HPP_DIFF__RATIO:
                 /* No point for ratio number if we are dummy.. */
-                if (he->dummy)
+                if (he->dummy) {
+                        scnprintf(buf, size, "N/A");
                         break;
+                }
 
                 if (pair->diff.computed)
                         ratio = pair->diff.period_ratio;
@@ -952,8 +974,10 @@ hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair,
 
         case PERF_HPP_DIFF__WEIGHTED_DIFF:
                 /* No point for wdiff number if we are dummy.. */
-                if (he->dummy)
+                if (he->dummy) {
+                        scnprintf(buf, size, "N/A");
                         break;
+                }
 
                 if (pair->diff.computed)
                         wdiff = pair->diff.wdiff;
@@ -1105,9 +1129,10 @@ static void data__hpp_register(struct data__file *d, int idx)
         perf_hpp__register_sort_field(fmt);
 }
 
-static void ui_init(void)
+static int ui_init(void)
 {
         struct data__file *d;
+        struct perf_hpp_fmt *fmt;
         int i;
 
         data__for_each_file(i, d) {
@@ -1137,6 +1162,46 @@ static void ui_init(void)
                         data__hpp_register(d, i ? PERF_HPP_DIFF__PERIOD :
                                                   PERF_HPP_DIFF__PERIOD_BASELINE);
         }
+
+        if (!sort_compute)
+                return 0;
+
+        /*
+         * Prepend an fmt to sort on columns at 'sort_compute' first.
+         * This fmt is added only to the sort list but not to the
+         * output fields list.
+         *
+         * Note that this column (data) can be compared twice - one
+         * for this 'sort_compute' fmt and another for the normal
+         * diff_hpp_fmt.  But it shouldn't a problem as most entries
+         * will be sorted out by first try or baseline and comparing
+         * is not a costly operation.
+         */
+        fmt = zalloc(sizeof(*fmt));
+        if (fmt == NULL) {
+                pr_err("Memory allocation failed\n");
+                return -1;
+        }
+
+        fmt->cmp      = hist_entry__cmp_nop;
+        fmt->collapse = hist_entry__cmp_nop;
+
+        switch (compute) {
+        case COMPUTE_DELTA:
+                fmt->sort = hist_entry__cmp_delta_idx;
+                break;
+        case COMPUTE_RATIO:
+                fmt->sort = hist_entry__cmp_ratio_idx;
+                break;
+        case COMPUTE_WEIGHTED_DIFF:
+                fmt->sort = hist_entry__cmp_wdiff_idx;
+                break;
+        default:
+                BUG_ON(1);
+        }
+
+        list_add(&fmt->sort_list, &perf_hpp__sort_list);
+        return 0;
 }
 
 static int data_init(int argc, const char **argv)
@@ -1202,7 +1267,8 @@ int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused)
         if (data_init(argc, argv) < 0)
                 return -1;
 
-        ui_init();
+        if (ui_init() < 0)
+                return -1;
 
         sort__mode = SORT_MODE__DIFF;
 
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 84df2deed988..a13641e066f5 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -343,6 +343,7 @@ static int __cmd_inject(struct perf_inject *inject)
         int ret = -EINVAL;
         struct perf_session *session = inject->session;
         struct perf_data_file *file_out = &inject->output;
+        int fd = perf_data_file__fd(file_out);
 
         signal(SIGINT, sig_handler);
 
@@ -376,7 +377,7 @@ static int __cmd_inject(struct perf_inject *inject)
         }
 
         if (!file_out->is_pipe)
-                lseek(file_out->fd, session->header.data_offset, SEEK_SET);
+                lseek(fd, session->header.data_offset, SEEK_SET);
 
         ret = perf_session__process_events(session, &inject->tool);
 
@@ -385,7 +386,7 @@ static int __cmd_inject(struct perf_inject *inject)
                         perf_header__set_feat(&session->header,
                                               HEADER_BUILD_ID);
                 session->header.data_size = inject->bytes_written;
-                perf_session__write_header(session, session->evlist, file_out->fd, true);
+                perf_session__write_header(session, session->evlist, fd, true);
         }
 
         return ret;
diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
index 24db6ffe2957..9b5663950a4d 100644
--- a/tools/perf/builtin-mem.c
+++ b/tools/perf/builtin-mem.c
@@ -7,44 +7,47 @@
 #include "util/session.h"
 #include "util/data.h"
 
-#define MEM_OPERATION_LOAD      "load"
-#define MEM_OPERATION_STORE     "store"
-
-static const char       *mem_operation          = MEM_OPERATION_LOAD;
+#define MEM_OPERATION_LOAD      0x1
+#define MEM_OPERATION_STORE     0x2
 
 struct perf_mem {
         struct perf_tool        tool;
         char const              *input_name;
         bool                    hide_unresolved;
         bool                    dump_raw;
+        int                     operation;
         const char              *cpu_list;
         DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
 };
 
-static int __cmd_record(int argc, const char **argv)
+static int __cmd_record(int argc, const char **argv, struct perf_mem *mem)
 {
         int rec_argc, i = 0, j;
         const char **rec_argv;
-        char event[64];
         int ret;
 
-        rec_argc = argc + 4;
+        rec_argc = argc + 7; /* max number of arguments */
         rec_argv = calloc(rec_argc + 1, sizeof(char *));
         if (!rec_argv)
                 return -1;
 
-        rec_argv[i++] = strdup("record");
-        if (!strcmp(mem_operation, MEM_OPERATION_LOAD))
-                rec_argv[i++] = strdup("-W");
-        rec_argv[i++] = strdup("-d");
-        rec_argv[i++] = strdup("-e");
+        rec_argv[i++] = "record";
 
-        if (strcmp(mem_operation, MEM_OPERATION_LOAD))
-                sprintf(event, "cpu/mem-stores/pp");
-        else
-                sprintf(event, "cpu/mem-loads/pp");
+        if (mem->operation & MEM_OPERATION_LOAD)
+                rec_argv[i++] = "-W";
+
+        rec_argv[i++] = "-d";
+
+        if (mem->operation & MEM_OPERATION_LOAD) {
+                rec_argv[i++] = "-e";
+                rec_argv[i++] = "cpu/mem-loads/pp";
+        }
+
+        if (mem->operation & MEM_OPERATION_STORE) {
+                rec_argv[i++] = "-e";
+                rec_argv[i++] = "cpu/mem-stores/pp";
+        }
 
-        rec_argv[i++] = strdup(event);
         for (j = 1; j < argc; j++, i++)
                 rec_argv[i] = argv[j];
 
@@ -162,17 +165,17 @@ static int report_events(int argc, const char **argv, struct perf_mem *mem)
         if (!rep_argv)
                 return -1;
 
-        rep_argv[i++] = strdup("report");
-        rep_argv[i++] = strdup("--mem-mode");
-        rep_argv[i++] = strdup("-n"); /* display number of samples */
+        rep_argv[i++] = "report";
+        rep_argv[i++] = "--mem-mode";
+        rep_argv[i++] = "-n"; /* display number of samples */
 
         /*
          * there is no weight (cost) associated with stores, so don't print
          * the column
          */
-        if (strcmp(mem_operation, MEM_OPERATION_LOAD))
-                rep_argv[i++] = strdup("--sort=mem,sym,dso,symbol_daddr,"
-                                       "dso_daddr,tlb,locked");
+        if (!(mem->operation & MEM_OPERATION_LOAD))
+                rep_argv[i++] = "--sort=mem,sym,dso,symbol_daddr,"
+                                "dso_daddr,tlb,locked";
 
         for (j = 1; j < argc; j++, i++)
                 rep_argv[i] = argv[j];
@@ -182,6 +185,75 @@ static int report_events(int argc, const char **argv, struct perf_mem *mem)
         return ret;
 }
 
+struct mem_mode {
+        const char *name;
+        int mode;
+};
+
+#define MEM_OPT(n, m) \
+        { .name = n, .mode = (m) }
+
+#define MEM_END { .name = NULL }
+
+static const struct mem_mode mem_modes[]={
+        MEM_OPT("load", MEM_OPERATION_LOAD),
+        MEM_OPT("store", MEM_OPERATION_STORE),
+        MEM_END
+};
+
+static int
+parse_mem_ops(const struct option *opt, const char *str, int unset)
+{
+        int *mode = (int *)opt->value;
+        const struct mem_mode *m;
+        char *s, *os = NULL, *p;
+        int ret = -1;
+
+        if (unset)
+                return 0;
+
+        /* str may be NULL in case no arg is passed to -t */
+        if (str) {
+                /* because str is read-only */
+                s = os = strdup(str);
+                if (!s)
+                        return -1;
+
+                /* reset mode */
+                *mode = 0;
+
+                for (;;) {
+                        p = strchr(s, ',');
+                        if (p)
+                                *p = '\0';
+
+                        for (m = mem_modes; m->name; m++) {
+                                if (!strcasecmp(s, m->name))
+                                        break;
+                        }
+                        if (!m->name) {
+                                fprintf(stderr, "unknown sampling op %s,"
+                                            " check man page\n", s);
+                                goto error;
+                        }
+
+                        *mode |= m->mode;
+
+                        if (!p)
+                                break;
+
+                        s = p + 1;
+                }
+        }
+        ret = 0;
+
+        if (*mode == 0)
+                *mode = MEM_OPERATION_LOAD;
+error:
+        free(os);
+        return ret;
+}
+
 int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused)
 {
         struct stat st;
@@ -197,10 +269,15 @@ int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused)
                         .ordered_events = true,
                 },
                 .input_name              = "perf.data",
+                /*
+                 * default to both load an store sampling
+                 */
+                .operation               = MEM_OPERATION_LOAD | MEM_OPERATION_STORE,
         };
         const struct option mem_options[] = {
-        OPT_STRING('t', "type", &mem_operation,
-                   "type", "memory operations(load/store)"),
+        OPT_CALLBACK('t', "type", &mem.operation,
+                   "type", "memory operations(load,store) Default load,store",
+                    parse_mem_ops),
         OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw,
                     "dump raw samples in ASCII"),
         OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved,
@@ -225,7 +302,7 @@ int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused)
         argc = parse_options_subcommand(argc, argv, mem_options, mem_subcommands,
                                         mem_usage, PARSE_OPT_STOP_AT_NON_OPTION);
 
-        if (!argc || !(strncmp(argv[0], "rec", 3) || mem_operation))
+        if (!argc || !(strncmp(argv[0], "rec", 3) || mem.operation))
                 usage_with_options(mem_usage, mem_options);
 
         if (!mem.input_name || !strlen(mem.input_name)) {
@@ -236,7 +313,7 @@ int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused)
         }
 
         if (!strncmp(argv[0], "rec", 3))
-                return __cmd_record(argc, argv);
+                return __cmd_record(argc, argv, &mem);
         else if (!strncmp(argv[0], "rep", 3))
                 return report_events(argc, argv, &mem);
         else
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 8648c6d3003d..404ab3434052 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -190,16 +190,30 @@ out:
         return rc;
 }
 
+static int process_sample_event(struct perf_tool *tool,
+                                union perf_event *event,
+                                struct perf_sample *sample,
+                                struct perf_evsel *evsel,
+                                struct machine *machine)
+{
+        struct record *rec = container_of(tool, struct record, tool);
+
+        rec->samples++;
+
+        return build_id__mark_dso_hit(tool, event, sample, evsel, machine);
+}
+
 static int process_buildids(struct record *rec)
 {
         struct perf_data_file *file  = &rec->file;
         struct perf_session *session = rec->session;
-        u64 start = session->header.data_offset;
 
-        u64 size = lseek(file->fd, 0, SEEK_CUR);
+        u64 size = lseek(perf_data_file__fd(file), 0, SEEK_CUR);
         if (size == 0)
                 return 0;
 
+        file->size = size;
+
         /*
          * During this process, it'll load kernel map and replace the
          * dso->long_name to a real pathname it found.  In this case
@@ -211,9 +225,7 @@ static int process_buildids(struct record *rec)
          */
         symbol_conf.ignore_vmlinux_buildid = true;
 
-        return __perf_session__process_events(session, start,
-                                              size - start,
-                                              size, &build_id__mark_dso_hit_ops);
+        return perf_session__process_events(session, &rec->tool);
 }
 
 static void perf_event__synthesize_guest_os(struct machine *machine, void *data)
@@ -322,6 +334,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
         struct perf_data_file *file = &rec->file;
         struct perf_session *session;
         bool disabled = false, draining = false;
+        int fd;
 
         rec->progname = argv[0];
 
@@ -336,6 +349,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
                 return -1;
         }
 
+        fd = perf_data_file__fd(file);
         rec->session = session;
 
         record__init_features(rec);
@@ -360,12 +374,11 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
                 perf_header__clear_feat(&session->header, HEADER_GROUP_DESC);
 
         if (file->is_pipe) {
-                err = perf_header__write_pipe(file->fd);
+                err = perf_header__write_pipe(fd);
                 if (err < 0)
                         goto out_child;
         } else {
-                err = perf_session__write_header(session, rec->evlist,
-                                                 file->fd, false);
+                err = perf_session__write_header(session, rec->evlist, fd, false);
                 if (err < 0)
                         goto out_child;
         }
@@ -397,7 +410,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
                          * return this more properly and also
                          * propagate errors that now are calling die()
                          */
-                        err = perf_event__synthesize_tracing_data(tool, file->fd, rec->evlist,
+                        err = perf_event__synthesize_tracing_data(tool, fd, rec->evlist,
                                                                   process_synthesized_event);
                         if (err <= 0) {
                                 pr_err("Couldn't record tracing data.\n");
@@ -504,19 +517,9 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
                 goto out_child;
         }
 
-        if (!quiet) {
+        if (!quiet)
                 fprintf(stderr, "[ perf record: Woken up %ld times to write data ]\n", waking);
 
-                /*
-                 * Approximate RIP event size: 24 bytes.
-                 */
-                fprintf(stderr,
-                        "[ perf record: Captured and wrote %.3f MB %s (~%" PRIu64 " samples) ]\n",
-                        (double)rec->bytes_written / 1024.0 / 1024.0,
-                        file->path,
-                        rec->bytes_written / 24);
-        }
-
 out_child:
         if (forks) {
                 int exit_status;
@@ -535,13 +538,29 @@ out_child:
         } else
                 status = err;
 
+        /* this will be recalculated during process_buildids() */
+        rec->samples = 0;
+
         if (!err && !file->is_pipe) {
                 rec->session->header.data_size += rec->bytes_written;
 
                 if (!rec->no_buildid)
                         process_buildids(rec);
-                perf_session__write_header(rec->session, rec->evlist,
-                                           file->fd, true);
+                perf_session__write_header(rec->session, rec->evlist, fd, true);
+        }
+
+        if (!err && !quiet) {
+                char samples[128];
+
+                if (rec->samples)
+                        scnprintf(samples, sizeof(samples),
+                                  " (%" PRIu64 " samples)", rec->samples);
+                else
+                        samples[0] = '\0';
+
+                fprintf(stderr, "[ perf record: Captured and wrote %.3f MB %s%s ]\n",
+                        perf_data_file__size(file) / 1024.0 / 1024.0,
+                        file->path, samples);
         }
 
 out_delete_session:
@@ -720,6 +739,13 @@ static struct record record = {
                         .default_per_cpu = true,
                 },
         },
+        .tool = {
+                .sample         = process_sample_event,
+                .fork           = perf_event__process_fork,
+                .comm           = perf_event__process_comm,
+                .mmap           = perf_event__process_mmap,
+                .mmap2          = perf_event__process_mmap2,
+        },
 };
 
 #define CALLCHAIN_HELP "setup and enables call-graph (stack chain/backtrace) recording: "
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 072ae8ad67fc..2f91094e228b 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -86,17 +86,6 @@ static int report__config(const char *var, const char *value, void *cb)
         return perf_default_config(var, value, cb);
 }
 
-static void report__inc_stats(struct report *rep, struct hist_entry *he)
-{
-        /*
-         * The @he is either of a newly created one or an existing one
-         * merging current sample.  We only want to count a new one so
-         * checking ->nr_events being 1.
-         */
-        if (he->stat.nr_events == 1)
-                rep->nr_entries++;
-}
-
 static int hist_iter__report_callback(struct hist_entry_iter *iter,
                                       struct addr_location *al, bool single,
                                       void *arg)
@@ -108,8 +97,6 @@ static int hist_iter__report_callback(struct hist_entry_iter *iter,
         struct mem_info *mi;
         struct branch_info *bi;
 
-        report__inc_stats(rep, he);
-
         if (!ui__has_annotation())
                 return 0;
 
@@ -499,6 +486,9 @@ static int __cmd_report(struct report *rep)
 
         report__warn_kptr_restrict(rep);
 
+        evlist__for_each(session->evlist, pos)
+                rep->nr_entries += evsel__hists(pos)->nr_entries;
+
         if (use_browser == 0) {
                 if (verbose > 3)
                         perf_session__fprintf(session, stdout);
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 891086376381..e598e4e98170 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1730,7 +1730,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
                     "detailed run - start a lot of events"),
         OPT_BOOLEAN('S', "sync", &sync_run,
                     "call sync() before starting a run"),
-        OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL, 
+        OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL,
                            "print large numbers with thousands\' separators",
                            stat__set_big_num),
         OPT_STRING('C', "cpu", &target.cpu_list, "cpu",
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 616f0fcb4701..c4c7eac69de4 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -165,7 +165,7 @@ static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip)
                     err ? "[unknown]" : uts.release, perf_version_string);
         if (use_browser <= 0)
                 sleep(5);
-        
+
         map->erange_warned = true;
 }
 
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index badfabc6a01f..7e935f1083ec 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -929,66 +929,66 @@ static struct syscall_fmt {
           .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },
         { .name     = "clock_gettime",  .errmsg = true, STRARRAY(0, clk_id, clockid), },
         { .name     = "close",      .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_CLOSE_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_CLOSE_FD, /* fd */ }, },
         { .name     = "connect",    .errmsg = true, },
         { .name     = "dup",        .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "dup2",       .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "dup3",       .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "epoll_ctl",  .errmsg = true, STRARRAY(1, op, epoll_ctl_ops), },
         { .name     = "eventfd2",   .errmsg = true,
           .arg_scnprintf = { [1] = SCA_EFD_FLAGS, /* flags */ }, },
         { .name     = "faccessat",  .errmsg = true,
           .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
         { .name     = "fadvise64",  .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "fallocate",  .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "fchdir",     .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "fchmod",     .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "fchmodat",   .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
         { .name     = "fchown",     .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "fchownat",   .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
         { .name     = "fcntl",      .errmsg = true,
           .arg_scnprintf = { [0] = SCA_FD, /* fd */
                              [1] = SCA_STRARRAY, /* cmd */ },
           .arg_parm      = { [1] = &strarray__fcntl_cmds, /* cmd */ }, },
         { .name     = "fdatasync",  .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "flock",      .errmsg = true,
           .arg_scnprintf = { [0] = SCA_FD, /* fd */
                              [1] = SCA_FLOCK, /* cmd */ }, },
         { .name     = "fsetxattr",  .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "fstat",      .errmsg = true, .alias = "newfstat",
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "fstatat",    .errmsg = true, .alias = "newfstatat",
-          .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
         { .name     = "fstatfs",    .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "fsync",    .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "ftruncate", .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "futex",      .errmsg = true,
           .arg_scnprintf = { [1] = SCA_FUTEX_OP, /* op */ }, },
         { .name     = "futimesat", .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
         { .name     = "getdents",   .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "getdents64", .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "getitimer",  .errmsg = true, STRARRAY(0, which, itimers), },
         { .name     = "getrlimit",  .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
         { .name     = "ioctl",      .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */
 #if defined(__i386__) || defined(__x86_64__)
 /*
  * FIXME: Make this available to all arches.
@@ -1002,7 +1002,7 @@ static struct syscall_fmt {
         { .name     = "kill",       .errmsg = true,
           .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
         { .name     = "linkat",     .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
         { .name     = "lseek",      .errmsg = true,
           .arg_scnprintf = { [0] = SCA_FD, /* fd */
                              [2] = SCA_STRARRAY, /* whence */ },
@@ -1012,9 +1012,9 @@ static struct syscall_fmt {
           .arg_scnprintf = { [0] = SCA_HEX,      /* start */
                              [2] = SCA_MADV_BHV, /* behavior */ }, },
         { .name     = "mkdirat",    .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
         { .name     = "mknodat",    .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
         { .name     = "mlock",      .errmsg = true,
           .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
         { .name     = "mlockall",   .errmsg = true,
@@ -1036,9 +1036,9 @@ static struct syscall_fmt {
         { .name     = "munmap",     .errmsg = true,
           .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
         { .name     = "name_to_handle_at", .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
         { .name     = "newfstatat", .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
         { .name     = "open",       .errmsg = true,
           .arg_scnprintf = { [1] = SCA_OPEN_FLAGS, /* flags */ }, },
         { .name     = "open_by_handle_at", .errmsg = true,
@@ -1052,20 +1052,20 @@ static struct syscall_fmt {
         { .name     = "poll",       .errmsg = true, .timeout = true, },
         { .name     = "ppoll",      .errmsg = true, .timeout = true, },
         { .name     = "pread",      .errmsg = true, .alias = "pread64",
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "preadv",     .errmsg = true, .alias = "pread",
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "prlimit64",  .errmsg = true, STRARRAY(1, resource, rlimit_resources), },
         { .name     = "pwrite",     .errmsg = true, .alias = "pwrite64",
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "pwritev",    .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "read",       .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "readlinkat", .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
         { .name     = "readv",      .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "recvfrom",   .errmsg = true,
           .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
         { .name     = "recvmmsg",   .errmsg = true,
@@ -1073,7 +1073,7 @@ static struct syscall_fmt {
         { .name     = "recvmsg",    .errmsg = true,
           .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, },
         { .name     = "renameat",   .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
         { .name     = "rt_sigaction", .errmsg = true,
           .arg_scnprintf = { [0] = SCA_SIGNUM, /* sig */ }, },
         { .name     = "rt_sigprocmask",  .errmsg = true, STRARRAY(0, how, sighow), },
@@ -1091,7 +1091,7 @@ static struct syscall_fmt {
         { .name     = "setitimer",  .errmsg = true, STRARRAY(0, which, itimers), },
         { .name     = "setrlimit",  .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
         { .name     = "shutdown",   .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "socket",     .errmsg = true,
           .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */
                              [1] = SCA_SK_TYPE, /* type */ },
@@ -1102,7 +1102,7 @@ static struct syscall_fmt {
           .arg_parm      = { [0] = &strarray__socket_families, /* family */ }, },
         { .name     = "stat",       .errmsg = true, .alias = "newstat", },
         { .name     = "symlinkat",  .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
         { .name     = "tgkill",     .errmsg = true,
           .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, },
         { .name     = "tkill",      .errmsg = true,
@@ -1113,9 +1113,9 @@ static struct syscall_fmt {
         { .name     = "utimensat",  .errmsg = true,
           .arg_scnprintf = { [0] = SCA_FDAT, /* dirfd */ }, },
         { .name     = "write",      .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
         { .name     = "writev",     .errmsg = true,
-          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+          .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
 };
 
 static int syscall_fmt__cmp(const void *name, const void *fmtp)
@@ -1191,7 +1191,7 @@ static struct thread_trace *thread__trace(struct thread *thread, FILE *fp)
 
         if (thread__priv(thread) == NULL)
                 thread__set_priv(thread, thread_trace__new());
-                
+
         if (thread__priv(thread) == NULL)
                 goto fail;
 
@@ -2056,23 +2056,24 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
         if (trace->trace_syscalls &&
             perf_evlist__add_syscall_newtp(evlist, trace__sys_enter,
                                            trace__sys_exit))
-                goto out_error_tp;
+                goto out_error_raw_syscalls;
 
         if (trace->trace_syscalls)
                 perf_evlist__add_vfs_getname(evlist);
 
         if ((trace->trace_pgfaults & TRACE_PFMAJ) &&
-            perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ))
-                goto out_error_tp;
+            perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ)) {
+                goto out_error_mem;
+        }
 
         if ((trace->trace_pgfaults & TRACE_PFMIN) &&
             perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MIN))
-                goto out_error_tp;
+                goto out_error_mem;
 
         if (trace->sched &&
-                perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime",
-                                trace__sched_stat_runtime))
-                goto out_error_tp;
+            perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime",
+                                   trace__sched_stat_runtime))
+                goto out_error_sched_stat_runtime;
 
         err = perf_evlist__create_maps(evlist, &trace->opts.target);
         if (err < 0) {
@@ -2202,8 +2203,12 @@ out:
 {
         char errbuf[BUFSIZ];
 
-out_error_tp:
-        perf_evlist__strerror_tp(evlist, errno, errbuf, sizeof(errbuf));
+out_error_sched_stat_runtime:
+        debugfs__strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime");
+        goto out_error;
+
+out_error_raw_syscalls:
+        debugfs__strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)");
         goto out_error;
 
 out_error_mmap:
@@ -2217,6 +2222,9 @@ out_error:
         fprintf(trace->output, "%s\n", errbuf);
         goto out_delete_evlist;
 }
+out_error_mem:
+        fprintf(trace->output, "Not enough memory to run!\n");
+        goto out_delete_evlist;
 }
 
 static int trace__replay(struct trace *trace)
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 648e31ff4021..cc224080b525 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -198,6 +198,7 @@ CORE_FEATURE_TESTS =			\
         libpython-version               \
         libslang                        \
         libunwind                       \
+        pthread-attr-setaffinity-np     \
         stackprotector-all              \
         timerfd                         \
         libdw-dwarf-unwind              \
@@ -226,6 +227,7 @@ VF_FEATURE_TESTS =			\
         libelf-getphdrnum               \
         libelf-mmap                     \
         libpython-version               \
+        pthread-attr-setaffinity-np     \
         stackprotector-all              \
         timerfd                         \
         libunwind-debug-frame           \
@@ -301,6 +303,10 @@ ifeq ($(feature-sync-compare-and-swap), 1)
   CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
 endif
 
+ifeq ($(feature-pthread-attr-setaffinity-np), 1)
+  CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
+endif
+
 ifndef NO_BIONIC
   $(call feature_check,bionic)
   ifeq ($(feature-bionic), 1)
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 53f19b5dbc37..42ac05aaf8ac 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -25,6 +25,7 @@ FILES=					\
         test-libslang.bin               \
         test-libunwind.bin              \
         test-libunwind-debug-frame.bin  \
+        test-pthread-attr-setaffinity-np.bin    \
         test-stackprotector-all.bin     \
         test-timerfd.bin                \
         test-libdw-dwarf-unwind.bin     \
@@ -47,6 +48,9 @@ test-all.bin:
 test-hello.bin:
         $(BUILD)
 
+test-pthread-attr-setaffinity-np.bin:
+        $(BUILD) -Werror -lpthread
+
 test-stackprotector-all.bin:
         $(BUILD) -Werror -fstack-protector-all
 
diff --git a/tools/perf/config/feature-checks/test-all.c b/tools/perf/config/feature-checks/test-all.c
index 652e0098eba6..6d4d09323922 100644
--- a/tools/perf/config/feature-checks/test-all.c
+++ b/tools/perf/config/feature-checks/test-all.c
@@ -97,6 +97,10 @@
 # include "test-zlib.c"
 #undef main
 
+#define main main_test_pthread_attr_setaffinity_np
+# include "test-pthread_attr_setaffinity_np.c"
+#undef main
+
 int main(int argc, char *argv[])
 {
         main_test_libpython();
@@ -121,6 +125,7 @@ int main(int argc, char *argv[])
         main_test_libdw_dwarf_unwind();
         main_test_sync_compare_and_swap(argc, argv);
         main_test_zlib();
+        main_test_pthread_attr_setaffinity_np();
 
         return 0;
 }
diff --git a/tools/perf/config/feature-checks/test-pthread-attr-setaffinity-np.c b/tools/perf/config/feature-checks/test-pthread-attr-setaffinity-np.c
new file mode 100644
index 000000000000..0a0d3ecb4e8a
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-pthread-attr-setaffinity-np.c
@@ -0,0 +1,14 @@
+#include <stdint.h>
+#include <pthread.h>
+
+int main(void)
+{
+        int ret = 0;
+        pthread_attr_t thread_attr;
+
+        pthread_attr_init(&thread_attr);
+        /* don't care abt exact args, just the API itself in libpthread */
+        ret = pthread_attr_setaffinity_np(&thread_attr, 0, NULL);
+
+        return ret;
+}
diff --git a/tools/perf/tests/attr.py b/tools/perf/tests/attr.py
index c9b4b6269b51..1091bd47adfd 100644
--- a/tools/perf/tests/attr.py
+++ b/tools/perf/tests/attr.py
@@ -104,7 +104,6 @@ class Event(dict):
                 continue
             if not self.compare_data(self[t], other[t]):
                 log.warning("expected %s=%s, got %s" % (t, self[t], other[t]))
-                
 
 # Test file description needs to have following sections:
 # [config]
diff --git a/tools/perf/tests/hists_cumulate.c b/tools/perf/tests/hists_cumulate.c
index 8d110dec393e..18619966454c 100644
--- a/tools/perf/tests/hists_cumulate.c
+++ b/tools/perf/tests/hists_cumulate.c
@@ -140,7 +140,7 @@ static void del_hist_entries(struct hists *hists)
                 he = rb_entry(node, struct hist_entry, rb_node);
                 rb_erase(node, root_out);
                 rb_erase(&he->rb_node_in, root_in);
-                hist_entry__free(he);
+                hist_entry__delete(he);
         }
 }
 
diff --git a/tools/perf/tests/hists_output.c b/tools/perf/tests/hists_output.c
index f5547610da02..b52c9faea224 100644
--- a/tools/perf/tests/hists_output.c
+++ b/tools/perf/tests/hists_output.c
@@ -106,7 +106,7 @@ static void del_hist_entries(struct hists *hists)
                 he = rb_entry(node, struct hist_entry, rb_node);
                 rb_erase(node, root_out);
                 rb_erase(&he->rb_node_in, root_in);
-                hist_entry__free(he);
+                hist_entry__delete(he);
         }
 }
 
diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index 69a71ff84e01..75709d2b17b4 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -222,7 +222,6 @@ tarpkg:
         @cmd="$(PERF)/tests/perf-targz-src-pkg $(PERF)"; \
         echo "- $@: $$cmd" && echo $$cmd > $@ && \
         ( eval $$cmd ) >> $@ 2>&1
-        
 
 all: $(run) $(run_O) tarpkg
         @echo OK
diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index 7f2f51f93619..1cdab0ce00e2 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -1145,6 +1145,49 @@ static int test__pinned_group(struct perf_evlist *evlist)
         return 0;
 }
 
+static int test__checkevent_breakpoint_len(struct perf_evlist *evlist)
+{
+        struct perf_evsel *evsel = perf_evlist__first(evlist);
+
+        TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->nr_entries);
+        TEST_ASSERT_VAL("wrong type", PERF_TYPE_BREAKPOINT == evsel->attr.type);
+        TEST_ASSERT_VAL("wrong config", 0 == evsel->attr.config);
+        TEST_ASSERT_VAL("wrong bp_type", (HW_BREAKPOINT_R | HW_BREAKPOINT_W) ==
+                                         evsel->attr.bp_type);
+        TEST_ASSERT_VAL("wrong bp_len", HW_BREAKPOINT_LEN_1 ==
+                                        evsel->attr.bp_len);
+
+        return 0;
+}
+
+static int test__checkevent_breakpoint_len_w(struct perf_evlist *evlist)
+{
+        struct perf_evsel *evsel = perf_evlist__first(evlist);
+
+        TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->nr_entries);
+        TEST_ASSERT_VAL("wrong type", PERF_TYPE_BREAKPOINT == evsel->attr.type);
+        TEST_ASSERT_VAL("wrong config", 0 == evsel->attr.config);
+        TEST_ASSERT_VAL("wrong bp_type", HW_BREAKPOINT_W ==
+                                         evsel->attr.bp_type);
+        TEST_ASSERT_VAL("wrong bp_len", HW_BREAKPOINT_LEN_2 ==
+                                        evsel->attr.bp_len);
+
+        return 0;
+}
+
+static int
+test__checkevent_breakpoint_len_rw_modifier(struct perf_evlist *evlist)
+{
+        struct perf_evsel *evsel = perf_evlist__first(evlist);
+
+        TEST_ASSERT_VAL("wrong exclude_user", !evsel->attr.exclude_user);
+        TEST_ASSERT_VAL("wrong exclude_kernel", evsel->attr.exclude_kernel);
+        TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv);
+        TEST_ASSERT_VAL("wrong precise_ip", !evsel->attr.precise_ip);
+
+        return test__checkevent_breakpoint_rw(evlist);
+}
+
 static int count_tracepoints(void)
 {
         char events_path[PATH_MAX];
@@ -1420,6 +1463,21 @@ static struct evlist_test test__events[] = {
                 .check = test__pinned_group,
                 .id    = 41,
         },
+        {
+                .name  = "mem:0/1",
+                .check = test__checkevent_breakpoint_len,
+                .id    = 42,
+        },
+        {
+                .name  = "mem:0/2:w",
+                .check = test__checkevent_breakpoint_len_w,
+                .id    = 43,
+        },
+        {
+                .name  = "mem:0/4:rw:u",
+                .check = test__checkevent_breakpoint_len_rw_modifier,
+                .id    = 44
+        },
 #if defined(__s390x__)
         {
                 .name  = "kvm-s390:kvm_s390_create_vm",
@@ -1471,7 +1529,7 @@ static int test_event(struct evlist_test *e)
         } else {
                 ret = e->check(evlist);
         }
-        
+
         perf_evlist__delete(evlist);
 
         return ret;
diff --git a/tools/perf/tests/sample-parsing.c b/tools/perf/tests/sample-parsing.c
index 4908c648a597..30c02181e78b 100644
--- a/tools/perf/tests/sample-parsing.c
+++ b/tools/perf/tests/sample-parsing.c
@@ -110,7 +110,7 @@ static bool samples_same(const struct perf_sample *s1,
 
         if (type & PERF_SAMPLE_STACK_USER) {
                 COMP(user_stack.size);
-                if (memcmp(s1->user_stack.data, s1->user_stack.data,
+                if (memcmp(s1->user_stack.data, s2->user_stack.data,
                            s1->user_stack.size)) {
                         pr_debug("Samples differ at 'user_stack'\n");
                         return false;
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 1e0a2fd80115..9d32e3c0cfee 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -517,7 +517,7 @@ static bool annotate_browser__jump(struct annotate_browser *browser)
         }
 
         annotate_browser__set_top(browser, dl, idx);
-        
+
         return true;
 }
 
@@ -867,7 +867,6 @@ static void annotate_browser__mark_jump_targets(struct annotate_browser *browser
 
                 ++browser->nr_jumps;
         }
-                
 }
 
 static inline int width_jumps(int n)
diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index 482adae3cc44..25d608394d74 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -285,7 +285,8 @@ static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,				\
 }
 
 #define __HPP_SORT_FN(_type, _field)                                            \
-static int64_t hpp__sort_##_type(struct hist_entry *a, struct hist_entry *b)    \
+static int64_t hpp__sort_##_type(struct perf_hpp_fmt *fmt __maybe_unused,       \
+                                 struct hist_entry *a, struct hist_entry *b)    \
 {                                                                               \
         return __hpp__sort(a, b, he_get_##_field);                              \
 }
@@ -312,7 +313,8 @@ static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,				\
 }
 
 #define __HPP_SORT_ACC_FN(_type, _field)                                        \
-static int64_t hpp__sort_##_type(struct hist_entry *a, struct hist_entry *b)    \
+static int64_t hpp__sort_##_type(struct perf_hpp_fmt *fmt __maybe_unused,       \
+                                 struct hist_entry *a, struct hist_entry *b)    \
 {                                                                               \
         return __hpp__sort_acc(a, b, he_get_acc_##_field);                      \
 }
@@ -331,7 +333,8 @@ static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,				\
 }
 
 #define __HPP_SORT_RAW_FN(_type, _field)                                        \
-static int64_t hpp__sort_##_type(struct hist_entry *a, struct hist_entry *b)    \
+static int64_t hpp__sort_##_type(struct perf_hpp_fmt *fmt __maybe_unused,       \
+                                 struct hist_entry *a, struct hist_entry *b)    \
 {                                                                               \
         return __hpp__sort(a, b, he_get_raw_##_field);                          \
 }
@@ -361,7 +364,8 @@ HPP_PERCENT_ACC_FNS(overhead_acc, period)
 HPP_RAW_FNS(samples, nr_events)
 HPP_RAW_FNS(period, period)
 
-static int64_t hpp__nop_cmp(struct hist_entry *a __maybe_unused,
+static int64_t hpp__nop_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+                            struct hist_entry *a __maybe_unused,
                             struct hist_entry *b __maybe_unused)
 {
         return 0;
diff --git a/tools/perf/ui/progress.h b/tools/perf/ui/progress.h
index f34f89eb607c..717d39d3052b 100644
--- a/tools/perf/ui/progress.h
+++ b/tools/perf/ui/progress.h
@@ -4,12 +4,12 @@
 #include <linux/types.h>
 
 void ui_progress__finish(void);
- 
+
 struct ui_progress {
         const char *title;
         u64 curr, next, step, total;
 };
- 
+
 void ui_progress__init(struct ui_progress *p, u64 total, const char *title);
 void ui_progress__update(struct ui_progress *p, u64 adv);
 
diff --git a/tools/perf/ui/tui/helpline.c b/tools/perf/ui/tui/helpline.c
index 1c8b9afd5d6e..88f5143a5981 100644
--- a/tools/perf/ui/tui/helpline.c
+++ b/tools/perf/ui/tui/helpline.c
@@ -9,6 +9,7 @@
 #include "../libslang.h"
 
 char ui_helpline__last_msg[1024];
+bool tui_helpline__set;
 
 static void tui_helpline__pop(void)
 {
@@ -35,6 +36,8 @@ static int tui_helpline__show(const char *format, va_list ap)
                         sizeof(ui_helpline__last_msg) - backlog, format, ap);
         backlog += ret;
 
+        tui_helpline__set = true;
+
         if (ui_helpline__last_msg[backlog - 1] == '\n') {
                 ui_helpline__puts(ui_helpline__last_msg);
                 SLsmg_refresh();
diff --git a/tools/perf/ui/tui/setup.c b/tools/perf/ui/tui/setup.c
index 3c38f25b1695..b77e1d771363 100644
--- a/tools/perf/ui/tui/setup.c
+++ b/tools/perf/ui/tui/setup.c
@@ -17,6 +17,7 @@
 static volatile int ui__need_resize;
 
 extern struct perf_error_ops perf_tui_eops;
+extern bool tui_helpline__set;
 
 extern void hist_browser__init_hpp(void);
 
@@ -159,7 +160,7 @@ out:
 
 void ui__exit(bool wait_for_ok)
 {
-        if (wait_for_ok)
+        if (wait_for_ok && tui_helpline__set)
                 ui__question_window("Fatal Error",
                                     ui_helpline__last_msg,
                                     "Press any key...", 0);
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 01bc4e23a2cf..61bf9128e1f2 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -239,7 +239,7 @@ static int mov__parse(struct ins_operands *ops)
         *s = '\0';
         ops->source.raw = strdup(ops->raw);
         *s = ',';
-        
+
         if (ops->source.raw == NULL)
                 return -1;
 
diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c
index f4654183d391..55355b3d4f85 100644
--- a/tools/perf/util/color.c
+++ b/tools/perf/util/color.c
@@ -5,132 +5,6 @@
 
 int perf_use_color_default = -1;
 
-static int parse_color(const char *name, int len)
-{
-        static const char * const color_names[] = {
-                "normal", "black", "red", "green", "yellow",
-                "blue", "magenta", "cyan", "white"
-        };
-        char *end;
-        int i;
-
-        for (i = 0; i < (int)ARRAY_SIZE(color_names); i++) {
-                const char *str = color_names[i];
-                if (!strncasecmp(name, str, len) && !str[len])
-                        return i - 1;
-        }
-        i = strtol(name, &end, 10);
-        if (end - name == len && i >= -1 && i <= 255)
-                return i;
-        return -2;
-}
-
-static int parse_attr(const char *name, int len)
-{
-        static const int attr_values[] = { 1, 2, 4, 5, 7 };
-        static const char * const attr_names[] = {
-                "bold", "dim", "ul", "blink", "reverse"
-        };
-        unsigned int i;
-
-        for (i = 0; i < ARRAY_SIZE(attr_names); i++) {
-                const char *str = attr_names[i];
-                if (!strncasecmp(name, str, len) && !str[len])
-                        return attr_values[i];
-        }
-        return -1;
-}
-
-void color_parse(const char *value, const char *var, char *dst)
-{
-        color_parse_mem(value, strlen(value), var, dst);
-}
-
-void color_parse_mem(const char *value, int value_len, const char *var,
-                char *dst)
-{
-        const char *ptr = value;
-        int len = value_len;
-        int attr = -1;
-        int fg = -2;
-        int bg = -2;
-
-        if (!strncasecmp(value, "reset", len)) {
-                strcpy(dst, PERF_COLOR_RESET);
-                return;
-        }
-
-        /* [fg [bg]] [attr] */
-        while (len > 0) {
-                const char *word = ptr;
-                int val, wordlen = 0;
-
-                while (len > 0 && !isspace(word[wordlen])) {
-                        wordlen++;
-                        len--;
-                }
-
-                ptr = word + wordlen;
-                while (len > 0 && isspace(*ptr)) {
-                        ptr++;
-                        len--;
-                }
-
-                val = parse_color(word, wordlen);
-                if (val >= -1) {
-                        if (fg == -2) {
-                                fg = val;
-                                continue;
-                        }
-                        if (bg == -2) {
-                                bg = val;
-                                continue;
-                        }
-                        goto bad;
-                }
-                val = parse_attr(word, wordlen);
-                if (val < 0 || attr != -1)
-                        goto bad;
-                attr = val;
-        }
-
-        if (attr >= 0 || fg >= 0 || bg >= 0) {
-                int sep = 0;
-
-                *dst++ = '\033';
-                *dst++ = '[';
-                if (attr >= 0) {
-                        *dst++ = '0' + attr;
-                        sep++;
-                }
-                if (fg >= 0) {
-                        if (sep++)
-                                *dst++ = ';';
-                        if (fg < 8) {
-                                *dst++ = '3';
-                                *dst++ = '0' + fg;
-                        } else {
-                                dst += sprintf(dst, "38;5;%d", fg);
-                        }
-                }
-                if (bg >= 0) {
-                        if (sep++)
-                                *dst++ = ';';
-                        if (bg < 8) {
-                                *dst++ = '4';
-                                *dst++ = '0' + bg;
-                        } else {
-                                dst += sprintf(dst, "48;5;%d", bg);
-                        }
-                }
-                *dst++ = 'm';
-        }
-        *dst = 0;
-        return;
-bad:
-        die("bad color value '%.*s' for variable '%s'", value_len, value, var);
-}
-
 int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty)
 {
         if (value) {
diff --git a/tools/perf/util/color.h b/tools/perf/util/color.h
index 0a594b8a0c26..38146f922c54 100644
--- a/tools/perf/util/color.h
+++ b/tools/perf/util/color.h
@@ -30,8 +30,6 @@ extern int perf_use_color_default;
 int perf_color_default_config(const char *var, const char *value, void *cb);
 
 int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty);
-void color_parse(const char *value, const char *var, char *dst);
-void color_parse_mem(const char *value, int len, const char *var, char *dst);
 int color_vsnprintf(char *bf, size_t size, const char *color,
                     const char *fmt, va_list args);
 int color_vfprintf(FILE *fp, const char *color, const char *fmt, va_list args);
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 45be944d450a..c2f7d3b90966 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -532,12 +532,8 @@ dso_cache__read(struct dso *dso, u64 offset, u8 *data, ssize_t size)
                         break;
 
                 cache_offset = offset & DSO__DATA_CACHE_MASK;
-                ret = -EINVAL;
 
-                if (-1 == lseek(dso->data.fd, cache_offset, SEEK_SET))
-                        break;
-
-                ret = read(dso->data.fd, cache->data, DSO__DATA_CACHE_SIZE);
+                ret = pread(dso->data.fd, cache->data, DSO__DATA_CACHE_SIZE, cache_offset);
                 if (ret <= 0)
                         break;
 
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index 3782c82c6e44..ced92841ff97 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -139,6 +139,7 @@ struct dso {
                 u32              status_seen;
                 size_t           file_size;
                 struct list_head open_entry;
+                u64              frame_offset;
         } data;
 
         union { /* Tool specific area */
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 2e507b5025a3..28b8ce86bf12 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1436,33 +1436,6 @@ size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp)
         return printed + fprintf(fp, "\n");
 }
 
-int perf_evlist__strerror_tp(struct perf_evlist *evlist __maybe_unused,
-                             int err, char *buf, size_t size)
-{
-        char sbuf[128];
-
-        switch (err) {
-        case ENOENT:
-                scnprintf(buf, size, "%s",
-                          "Error:\tUnable to find debugfs\n"
-                          "Hint:\tWas your kernel compiled with debugfs support?\n"
-                          "Hint:\tIs the debugfs filesystem mounted?\n"
-                          "Hint:\tTry 'sudo mount -t debugfs nodev /sys/kernel/debug'");
-                break;
-        case EACCES:
-                scnprintf(buf, size,
-                          "Error:\tNo permissions to read %s/tracing/events/raw_syscalls\n"
-                          "Hint:\tTry 'sudo mount -o remount,mode=755 %s'\n",
-                          debugfs_mountpoint, debugfs_mountpoint);
-                break;
-        default:
-                scnprintf(buf, size, "%s", strerror_r(err, sbuf, sizeof(sbuf)));
-                break;
-        }
-
-        return 0;
-}
-
 int perf_evlist__strerror_open(struct perf_evlist *evlist __maybe_unused,
                                int err, char *buf, size_t size)
 {
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 0ba93f67ab94..c94a9e03ecf1 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -183,7 +183,6 @@ static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
 
 size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);
 
-int perf_evlist__strerror_tp(struct perf_evlist *evlist, int err, char *buf, size_t size);
 int perf_evlist__strerror_open(struct perf_evlist *evlist, int err, char *buf, size_t size);
 int perf_evlist__strerror_mmap(struct perf_evlist *evlist, int err, char *buf, size_t size);
 
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 1e90c8557ede..ea51a90e20a0 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -709,6 +709,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
         if (opts->sample_weight)
                 perf_evsel__set_sample_bit(evsel, WEIGHT);
 
+        attr->task  = track;
         attr->mmap  = track;
         attr->mmap2 = track && !perf_missing_features.mmap2;
         attr->comm  = track;
@@ -797,6 +798,9 @@ int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads)
 
 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads)
 {
+        if (ncpus == 0 || nthreads == 0)
+                return 0;
+
         if (evsel->system_wide)
                 nthreads = 1;
 
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index b20e40c74468..1f407f7352a7 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2237,6 +2237,7 @@ static int check_magic_endian(u64 magic, uint64_t hdr_sz,
          * - unique number to identify actual perf.data files
          * - encode endianness of file
          */
+        ph->version = PERF_HEADER_VERSION_2;
 
         /* check magic number with one endianness */
         if (magic == __perf_magic2)
@@ -2247,7 +2248,6 @@ static int check_magic_endian(u64 magic, uint64_t hdr_sz,
                 return -1;
 
         ph->needs_swap = true;
-        ph->version = PERF_HEADER_VERSION_2;
 
         return 0;
 }
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 182395546ddc..70b48a65064c 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -241,6 +241,20 @@ static bool hists__decay_entry(struct hists *hists, struct hist_entry *he)
         return he->stat.period == 0;
 }
 
+static void hists__delete_entry(struct hists *hists, struct hist_entry *he)
+{
+        rb_erase(&he->rb_node, &hists->entries);
+
+        if (sort__need_collapse)
+                rb_erase(&he->rb_node_in, &hists->entries_collapsed);
+
+        --hists->nr_entries;
+        if (!he->filtered)
+                --hists->nr_non_filtered_entries;
+
+        hist_entry__delete(he);
+}
+
 void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel)
 {
         struct rb_node *next = rb_first(&hists->entries);
@@ -258,16 +272,7 @@ void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel)
                      (zap_kernel && n->level != '.') ||
                      hists__decay_entry(hists, n)) &&
                     !n->used) {
-                        rb_erase(&n->rb_node, &hists->entries);
-
-                        if (sort__need_collapse)
-                                rb_erase(&n->rb_node_in, &hists->entries_collapsed);
-
-                        --hists->nr_entries;
-                        if (!n->filtered)
-                                --hists->nr_non_filtered_entries;
-
-                        hist_entry__free(n);
+                        hists__delete_entry(hists, n);
                 }
         }
 }
@@ -281,16 +286,7 @@ void hists__delete_entries(struct hists *hists)
                 n = rb_entry(next, struct hist_entry, rb_node);
                 next = rb_next(&n->rb_node);
 
-                rb_erase(&n->rb_node, &hists->entries);
-
-                if (sort__need_collapse)
-                        rb_erase(&n->rb_node_in, &hists->entries_collapsed);
-
-                --hists->nr_entries;
-                if (!n->filtered)
-                        --hists->nr_non_filtered_entries;
-
-                hist_entry__free(n);
+                hists__delete_entry(hists, n);
         }
 }
 
@@ -433,6 +429,8 @@ static struct hist_entry *add_hist_entry(struct hists *hists,
         if (!he)
                 return NULL;
 
+        hists->nr_entries++;
+
         rb_link_node(&he->rb_node_in, parent, p);
         rb_insert_color(&he->rb_node_in, hists->entries_in);
 out:
@@ -915,7 +913,7 @@ hist_entry__cmp(struct hist_entry *left, struct hist_entry *right)
                 if (perf_hpp__should_skip(fmt))
                         continue;
 
-                cmp = fmt->cmp(left, right);
+                cmp = fmt->cmp(fmt, left, right);
                 if (cmp)
                         break;
         }
@@ -933,7 +931,7 @@ hist_entry__collapse(struct hist_entry *left, struct hist_entry *right)
                 if (perf_hpp__should_skip(fmt))
                         continue;
 
-                cmp = fmt->collapse(left, right);
+                cmp = fmt->collapse(fmt, left, right);
                 if (cmp)
                         break;
         }
@@ -941,7 +939,7 @@ hist_entry__collapse(struct hist_entry *left, struct hist_entry *right)
         return cmp;
 }
 
-void hist_entry__free(struct hist_entry *he)
+void hist_entry__delete(struct hist_entry *he)
 {
         zfree(&he->branch_info);
         zfree(&he->mem_info);
@@ -981,7 +979,7 @@ static bool hists__collapse_insert_entry(struct hists *hists __maybe_unused,
                                                 iter->callchain,
                                                 he->callchain);
                         }
-                        hist_entry__free(he);
+                        hist_entry__delete(he);
                         return false;
                 }
 
@@ -1063,7 +1061,7 @@ static int hist_entry__sort(struct hist_entry *a, struct hist_entry *b)
                 if (perf_hpp__should_skip(fmt))
                         continue;
 
-                cmp = fmt->sort(a, b);
+                cmp = fmt->sort(fmt, a, b);
                 if (cmp)
                         break;
         }
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 46bd50344f85..2b690d028907 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -119,7 +119,7 @@ int64_t hist_entry__collapse(struct hist_entry *left, struct hist_entry *right);
 int hist_entry__transaction_len(void);
 int hist_entry__sort_snprintf(struct hist_entry *he, char *bf, size_t size,
                               struct hists *hists);
-void hist_entry__free(struct hist_entry *);
+void hist_entry__delete(struct hist_entry *he);
 
 void hists__output_resort(struct hists *hists, struct ui_progress *prog);
 void hists__collapse_resort(struct hists *hists, struct ui_progress *prog);
@@ -195,9 +195,12 @@ struct perf_hpp_fmt {
                      struct hist_entry *he);
         int (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                      struct hist_entry *he);
-        int64_t (*cmp)(struct hist_entry *a, struct hist_entry *b);
-        int64_t (*collapse)(struct hist_entry *a, struct hist_entry *b);
-        int64_t (*sort)(struct hist_entry *a, struct hist_entry *b);
+        int64_t (*cmp)(struct perf_hpp_fmt *fmt,
+                       struct hist_entry *a, struct hist_entry *b);
+        int64_t (*collapse)(struct perf_hpp_fmt *fmt,
+                            struct hist_entry *a, struct hist_entry *b);
+        int64_t (*sort)(struct perf_hpp_fmt *fmt,
+                        struct hist_entry *a, struct hist_entry *b);
 
         struct list_head list;
         struct list_head sort_list;
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 77b43fe43d55..7f8ec6ce2823 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -526,7 +526,7 @@ do {					\
 }
 
 int parse_events_add_breakpoint(struct list_head *list, int *idx,
-                                void *ptr, char *type)
+                                void *ptr, char *type, u64 len)
 {
         struct perf_event_attr attr;
 
@@ -536,14 +536,15 @@ int parse_events_add_breakpoint(struct list_head *list, int *idx,
         if (parse_breakpoint_type(type, &attr))
                 return -EINVAL;
 
-        /*
-         * We should find a nice way to override the access length
-         * Provide some defaults for now
-         */
-        if (attr.bp_type == HW_BREAKPOINT_X)
-                attr.bp_len = sizeof(long);
-        else
-                attr.bp_len = HW_BREAKPOINT_LEN_4;
+        /* Provide some defaults if len is not specified */
+        if (!len) {
+                if (attr.bp_type == HW_BREAKPOINT_X)
+                        len = sizeof(long);
+                else
+                        len = HW_BREAKPOINT_LEN_4;
+        }
+
+        attr.bp_len = len;
 
         attr.type = PERF_TYPE_BREAKPOINT;
         attr.sample_period = 1;
@@ -1121,7 +1122,7 @@ void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
                 return;
 
         for_each_subsystem(sys_dir, sys_dirent, sys_next) {
-                if (subsys_glob != NULL && 
+                if (subsys_glob != NULL &&
                     !strglobmatch(sys_dirent.d_name, subsys_glob))
                         continue;
 
@@ -1132,7 +1133,7 @@ void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
                         continue;
 
                 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
-                        if (event_glob != NULL && 
+                        if (event_glob != NULL &&
                             !strglobmatch(evt_dirent.d_name, event_glob))
                                 continue;
 
@@ -1305,7 +1306,7 @@ static void print_symbol_events(const char *event_glob, unsigned type,
 
         for (i = 0; i < max; i++, syms++) {
 
-                if (event_glob != NULL && 
+                if (event_glob != NULL &&
                     !(strglobmatch(syms->symbol, event_glob) ||
                       (syms->alias && strglobmatch(syms->alias, event_glob))))
                         continue;
@@ -1366,7 +1367,7 @@ void print_events(const char *event_glob, bool name_only)
                 printf("\n");
 
                 printf("  %-50s [%s]\n",
-                       "mem:<addr>[:access]",
+                       "mem:<addr>[/len][:access]",
                         event_type_descriptors[PERF_TYPE_BREAKPOINT]);
                 printf("\n");
         }
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index db2cf78ff0f3..ff6e1fa4111e 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -71,6 +71,7 @@ struct parse_events_term {
         int type_val;
         int type_term;
         struct list_head list;
+        bool used;
 };
 
 struct parse_events_evlist {
@@ -104,7 +105,7 @@ int parse_events_add_numeric(struct list_head *list, int *idx,
 int parse_events_add_cache(struct list_head *list, int *idx,
                            char *type, char *op_result1, char *op_result2);
 int parse_events_add_breakpoint(struct list_head *list, int *idx,
-                                void *ptr, char *type);
+                                void *ptr, char *type, u64 len);
 int parse_events_add_pmu(struct list_head *list, int *idx,
                          char *pmu , struct list_head *head_config);
 enum perf_pmu_event_symbol_type
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 906630bbf8eb..94eacb6c1ef7 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -159,6 +159,7 @@ branch_type		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE
 <mem>{
 {modifier_bp}           { return str(yyscanner, PE_MODIFIER_BP); }
 :                       { return ':'; }
+"/"                     { return '/'; }
 {num_dec}               { return value(yyscanner, 10); }
 {num_hex}               { return value(yyscanner, 16); }
         /*
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 93c4c9fbc922..72def077dbbf 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -326,6 +326,28 @@ PE_NAME_CACHE_TYPE
 }
 
 event_legacy_mem:
+PE_PREFIX_MEM PE_VALUE '/' PE_VALUE ':' PE_MODIFIER_BP sep_dc
+{
+        struct parse_events_evlist *data = _data;
+        struct list_head *list;
+
+        ALLOC_LIST(list);
+        ABORT_ON(parse_events_add_breakpoint(list, &data->idx,
+                                             (void *) $2, $6, $4));
+        $$ = list;
+}
+|
+PE_PREFIX_MEM PE_VALUE '/' PE_VALUE sep_dc
+{
+        struct parse_events_evlist *data = _data;
+        struct list_head *list;
+
+        ALLOC_LIST(list);
+        ABORT_ON(parse_events_add_breakpoint(list, &data->idx,
+                                             (void *) $2, NULL, $4));
+        $$ = list;
+}
+|
 PE_PREFIX_MEM PE_VALUE ':' PE_MODIFIER_BP sep_dc
 {
         struct parse_events_evlist *data = _data;
@@ -333,7 +355,7 @@ PE_PREFIX_MEM PE_VALUE ':' PE_MODIFIER_BP sep_dc
 
         ALLOC_LIST(list);
         ABORT_ON(parse_events_add_breakpoint(list, &data->idx,
-                                             (void *) $2, $4));
+                                             (void *) $2, $4, 0));
         $$ = list;
 }
 |
@@ -344,7 +366,7 @@ PE_PREFIX_MEM PE_VALUE sep_dc
 
         ALLOC_LIST(list);
         ABORT_ON(parse_events_add_breakpoint(list, &data->idx,
-                                             (void *) $2, NULL));
+                                             (void *) $2, NULL, 0));
         $$ = list;
 }
 
diff --git a/tools/perf/util/parse-options.c b/tools/perf/util/parse-options.c
index f62dee7bd924..4a015f77e2b5 100644
--- a/tools/perf/util/parse-options.c
+++ b/tools/perf/util/parse-options.c
@@ -46,7 +46,7 @@ static int get_value(struct parse_opt_ctx_t *p,
                 return opterror(opt, "is not usable", flags);
 
         if (opt->flags & PARSE_OPT_EXCLUSIVE) {
-                if (p->excl_opt) {
+                if (p->excl_opt && p->excl_opt != opt) {
                         char msg[128];
 
                         if (((flags & OPT_SHORT) && p->excl_opt->short_name) ||
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 5c9c4947cfb4..48411674da0f 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -551,31 +551,68 @@ static void pmu_format_value(unsigned long *format, __u64 value, __u64 *v,
 }
 
 /*
+ * Term is a string term, and might be a param-term. Try to look up it's value
+ * in the remaining terms.
+ * - We have a term like "base-or-format-term=param-term",
+ * - We need to find the value supplied for "param-term" (with param-term named
+ *   in a config string) later on in the term list.
+ */
+static int pmu_resolve_param_term(struct parse_events_term *term,
+                                  struct list_head *head_terms,
+                                  __u64 *value)
+{
+        struct parse_events_term *t;
+
+        list_for_each_entry(t, head_terms, list) {
+                if (t->type_val == PARSE_EVENTS__TERM_TYPE_NUM) {
+                        if (!strcmp(t->config, term->config)) {
+                                t->used = true;
+                                *value = t->val.num;
+                                return 0;
+                        }
+                }
+        }
+
+        if (verbose)
+                printf("Required parameter '%s' not specified\n", term->config);
+
+        return -1;
+}
+
+/*
  * Setup one of config[12] attr members based on the
  * user input data - term parameter.
  */
 static int pmu_config_term(struct list_head *formats,
                            struct perf_event_attr *attr,
                            struct parse_events_term *term,
+                           struct list_head *head_terms,
                            bool zero)
 {
         struct perf_pmu_format *format;
         __u64 *vp;
+        __u64 val;
+
+        /*
+         * If this is a parameter we've already used for parameterized-eval,
+         * skip it in normal eval.
+         */
+        if (term->used)
+                return 0;
 
         /*
-         * Support only for hardcoded and numnerial terms.
          * Hardcoded terms should be already in, so nothing
          * to be done for them.
          */
         if (parse_events__is_hardcoded_term(term))
                 return 0;
 
-        if (term->type_val != PARSE_EVENTS__TERM_TYPE_NUM)
-                return -EINVAL;
-
         format = pmu_find_format(formats, term->config);
-        if (!format)
+        if (!format) {
+                if (verbose)
+                        printf("Invalid event/parameter '%s'\n", term->config);
                 return -EINVAL;
+        }
 
         switch (format->value) {
         case PERF_PMU_FORMAT_VALUE_CONFIG:
@@ -592,11 +629,25 @@ static int pmu_config_term(struct list_head *formats,
         }
 
         /*
-         * XXX If we ever decide to go with string values for
-         * non-hardcoded terms, here's the place to translate
-         * them into value.
+         * Either directly use a numeric term, or try to translate string terms
+         * using event parameters.
          */
-        pmu_format_value(format->bits, term->val.num, vp, zero);
+        if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM)
+                val = term->val.num;
+        else if (term->type_val == PARSE_EVENTS__TERM_TYPE_STR) {
+                if (strcmp(term->val.str, "?")) {
+                        if (verbose)
+                                pr_info("Invalid sysfs entry %s=%s\n",
+                                                term->config, term->val.str);
+                        return -EINVAL;
+                }
+
+                if (pmu_resolve_param_term(term, head_terms, &val))
+                        return -EINVAL;
+        } else
+                return -EINVAL;
+
+        pmu_format_value(format->bits, val, vp, zero);
         return 0;
 }
 
@@ -607,9 +658,10 @@ int perf_pmu__config_terms(struct list_head *formats,
 {
         struct parse_events_term *term;
 
-        list_for_each_entry(term, head_terms, list)
-                if (pmu_config_term(formats, attr, term, zero))
+        list_for_each_entry(term, head_terms, list) {
+                if (pmu_config_term(formats, attr, term, head_terms, zero))
                         return -EINVAL;
+        }
 
         return 0;
 }
@@ -767,10 +819,36 @@ void perf_pmu__set_format(unsigned long *bits, long from, long to)
                 set_bit(b, bits);
 }
 
+static int sub_non_neg(int a, int b)
+{
+        if (b > a)
+                return 0;
+        return a - b;
+}
+
 static char *format_alias(char *buf, int len, struct perf_pmu *pmu,
                           struct perf_pmu_alias *alias)
 {
-        snprintf(buf, len, "%s/%s/", pmu->name, alias->name);
+        struct parse_events_term *term;
+        int used = snprintf(buf, len, "%s/%s", pmu->name, alias->name);
+
+        list_for_each_entry(term, &alias->terms, list) {
+                if (term->type_val == PARSE_EVENTS__TERM_TYPE_STR)
+                        used += snprintf(buf + used, sub_non_neg(len, used),
+                                        ",%s=%s", term->config,
+                                        term->val.str);
+        }
+
+        if (sub_non_neg(len, used) > 0) {
+                buf[used] = '/';
+                used++;
+        }
+        if (sub_non_neg(len, used) > 0) {
+                buf[used] = '\0';
+                used++;
+        } else
+                buf[len - 1] = '\0';
+
         return buf;
 }
 
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 3dda85ca50c1..d906d0ad5d40 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -768,7 +768,7 @@ static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
                         Py_DECREF(file);
                         goto free_list;
                 }
-                        
+
                 Py_DECREF(file);
         }
 
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index d808a328f4dc..0c815a40a6e8 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -89,7 +89,7 @@ static void handler_call_die(const char *handler_name)
 
 /*
  * Insert val into into the dictionary and decrement the reference counter.
- * This is necessary for dictionaries since PyDict_SetItemString() does not 
+ * This is necessary for dictionaries since PyDict_SetItemString() does not
  * steal a reference, as opposed to PyTuple_SetItem().
  */
 static void pydict_set_item_string_decref(PyObject *dict, const char *key, PyObject *val)
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 5f0e05a76c05..0baf75f12b7c 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -274,7 +274,7 @@ void perf_tool__fill_defaults(struct perf_tool *tool)
         if (tool->id_index == NULL)
                 tool->id_index = process_id_index_stub;
 }
- 
+
 static void swap_sample_id_all(union perf_event *event, void *data)
 {
         void *end = (void *) event + event->header.size;
@@ -1251,9 +1251,9 @@ fetch_mmaped_event(struct perf_session *session,
 #define NUM_MMAPS 128
 #endif
 
-int __perf_session__process_events(struct perf_session *session,
-                                   u64 data_offset, u64 data_size,
-                                   u64 file_size, struct perf_tool *tool)
+static int __perf_session__process_events(struct perf_session *session,
+                                          u64 data_offset, u64 data_size,
+                                          u64 file_size, struct perf_tool *tool)
 {
         int fd = perf_data_file__fd(session->file);
         u64 head, page_offset, file_offset, file_pos, size;
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index dc26ebf60fe4..6d663dc76404 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -49,9 +49,6 @@ int perf_session__peek_event(struct perf_session *session, off_t file_offset,
                              union perf_event **event_ptr,
                              struct perf_sample *sample);
 
-int __perf_session__process_events(struct perf_session *session,
-                                   u64 data_offset, u64 data_size, u64 size,
-                                   struct perf_tool *tool);
 int perf_session__process_events(struct perf_session *session,
                                  struct perf_tool *tool);
 
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 9139dda9f9a3..7a39c1ed8d37 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -1304,6 +1304,37 @@ static int __sort__hpp_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
         return hse->se->se_snprintf(he, hpp->buf, hpp->size, len);
 }
 
+static int64_t __sort__hpp_cmp(struct perf_hpp_fmt *fmt,
+                               struct hist_entry *a, struct hist_entry *b)
+{
+        struct hpp_sort_entry *hse;
+
+        hse = container_of(fmt, struct hpp_sort_entry, hpp);
+        return hse->se->se_cmp(a, b);
+}
+
+static int64_t __sort__hpp_collapse(struct perf_hpp_fmt *fmt,
+                                    struct hist_entry *a, struct hist_entry *b)
+{
+        struct hpp_sort_entry *hse;
+        int64_t (*collapse_fn)(struct hist_entry *, struct hist_entry *);
+
+        hse = container_of(fmt, struct hpp_sort_entry, hpp);
+        collapse_fn = hse->se->se_collapse ?: hse->se->se_cmp;
+        return collapse_fn(a, b);
+}
+
+static int64_t __sort__hpp_sort(struct perf_hpp_fmt *fmt,
+                                struct hist_entry *a, struct hist_entry *b)
+{
+        struct hpp_sort_entry *hse;
+        int64_t (*sort_fn)(struct hist_entry *, struct hist_entry *);
+
+        hse = container_of(fmt, struct hpp_sort_entry, hpp);
+        sort_fn = hse->se->se_sort ?: hse->se->se_cmp;
+        return sort_fn(a, b);
+}
+
 static struct hpp_sort_entry *
 __sort_dimension__alloc_hpp(struct sort_dimension *sd)
 {
@@ -1322,9 +1353,9 @@ __sort_dimension__alloc_hpp(struct sort_dimension *sd)
         hse->hpp.entry = __sort__hpp_entry;
         hse->hpp.color = NULL;
 
-        hse->hpp.cmp = sd->entry->se_cmp;
-        hse->hpp.collapse = sd->entry->se_collapse ? : sd->entry->se_cmp;
-        hse->hpp.sort = sd->entry->se_sort ? : hse->hpp.collapse;
+        hse->hpp.cmp = __sort__hpp_cmp;
+        hse->hpp.collapse = __sort__hpp_collapse;
+        hse->hpp.sort = __sort__hpp_sort;
 
         INIT_LIST_HEAD(&hse->hpp.list);
         INIT_LIST_HEAD(&hse->hpp.sort_list);
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index 06fcd1bf98b6..b24f9d8727a8 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -574,13 +574,16 @@ static int decompress_kmodule(struct dso *dso, const char *name,
         const char *ext = strrchr(name, '.');
         char tmpbuf[] = "/tmp/perf-kmod-XXXXXX";
 
-        if ((type != DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE_COMP &&
-             type != DSO_BINARY_TYPE__GUEST_KMODULE_COMP) ||
-            type != dso->symtab_type)
+        if (type != DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE_COMP &&
+            type != DSO_BINARY_TYPE__GUEST_KMODULE_COMP &&
+            type != DSO_BINARY_TYPE__BUILD_ID_CACHE)
                 return -1;
 
-        if (!ext || !is_supported_compression(ext + 1))
-                return -1;
+        if (!ext || !is_supported_compression(ext + 1)) {
+                ext = strrchr(dso->name, '.');
+                if (!ext || !is_supported_compression(ext + 1))
+                        return -1;
+        }
 
         fd = mkstemp(tmpbuf);
         if (fd < 0)
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index a194702a0a2f..a69066865a55 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -685,7 +685,7 @@ static int dso__split_kallsyms(struct dso *dso, struct map *map, u64 delta,
         struct machine *machine = kmaps->machine;
         struct map *curr_map = map;
         struct symbol *pos;
-        int count = 0, moved = 0;       
+        int count = 0, moved = 0;
         struct rb_root *root = &dso->symbols[map->type];
         struct rb_node *next = rb_first(root);
         int kernel_range = 0;
diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c
index 6edf535f65c2..e3c40a520a25 100644
--- a/tools/perf/util/unwind-libunwind.c
+++ b/tools/perf/util/unwind-libunwind.c
@@ -266,14 +266,17 @@ static int read_unwind_spec_eh_frame(struct dso *dso, struct machine *machine,
                                      u64 *fde_count)
 {
         int ret = -EINVAL, fd;
-        u64 offset;
+        u64 offset = dso->data.frame_offset;
 
-        fd = dso__data_fd(dso, machine);
-        if (fd < 0)
-                return -EINVAL;
+        if (offset == 0) {
+                fd = dso__data_fd(dso, machine);
+                if (fd < 0)
+                        return -EINVAL;
 
-        /* Check the .eh_frame section for unwinding info */
-        offset = elf_section_offset(fd, ".eh_frame_hdr");
+                /* Check the .eh_frame section for unwinding info */
+                offset = elf_section_offset(fd, ".eh_frame_hdr");
+                dso->data.frame_offset = offset;
+        }
 
         if (offset)
                 ret = unwind_spec_ehframe(dso, machine, offset,
@@ -287,14 +290,20 @@ static int read_unwind_spec_eh_frame(struct dso *dso, struct machine *machine,
 static int read_unwind_spec_debug_frame(struct dso *dso,
                                         struct machine *machine, u64 *offset)
 {
-        int fd = dso__data_fd(dso, machine);
+        int fd;
+        u64 ofs = dso->data.frame_offset;
 
-        if (fd < 0)
-                return -EINVAL;
+        if (ofs == 0) {
+                fd = dso__data_fd(dso, machine);
+                if (fd < 0)
+                        return -EINVAL;
 
-        /* Check the .debug_frame section for unwinding info */
-        *offset = elf_section_offset(fd, ".debug_frame");
+                /* Check the .debug_frame section for unwinding info */
+                ofs = elf_section_offset(fd, ".debug_frame");
+                dso->data.frame_offset = ofs;
+        }
 
+        *offset = ofs;
         if (*offset)
                 return 0;
 
diff --git a/tools/testing/selftests/rcutorture/bin/cpus2use.sh b/tools/testing/selftests/rcutorture/bin/cpus2use.sh
index abe14b7f36e9..bb99cde3f5f9 100755
--- a/tools/testing/selftests/rcutorture/bin/cpus2use.sh
+++ b/tools/testing/selftests/rcutorture/bin/cpus2use.sh
@@ -24,7 +24,7 @@
 
 ncpus=`grep '^processor' /proc/cpuinfo | wc -l`
 idlecpus=`mpstat | tail -1 | \
-        awk -v ncpus=$ncpus '{ print ncpus * ($7 + $12) / 100 }'`
+        awk -v ncpus=$ncpus '{ print ncpus * ($7 + $NF) / 100 }'`
 awk -v ncpus=$ncpus -v idlecpus=$idlecpus < /dev/null '
 BEGIN {
         cpus2use = idlecpus;
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
index d6cc07fc137f..559e01ac86be 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
@@ -30,6 +30,7 @@ else
         echo Unreadable results directory: $i
         exit 1
 fi
+. tools/testing/selftests/rcutorture/bin/functions.sh
 
 configfile=`echo $i | sed -e 's/^.*\///'`
 ngps=`grep ver: $i/console.log 2> /dev/null | tail -1 | sed -e 's/^.* ver: //' -e 's/ .*$//'`
@@ -48,4 +49,21 @@ else
                 title="$title ($ngpsps per second)"
         fi
         echo $title
+        nclosecalls=`grep --binary-files=text 'torture: Reader Batch' $i/console.log | tail -1 | awk '{for (i=NF-8;i<=NF;i++) sum+=$i; } END {print sum}'`
+        if test -z "$nclosecalls"
+        then
+                exit 0
+        fi
+        if test "$nclosecalls" -eq 0
+        then
+                exit 0
+        fi
+        # Compute number of close calls per tenth of an hour
+        nclosecalls10=`awk -v nclosecalls=$nclosecalls -v dur=$dur 'BEGIN { print int(nclosecalls * 36000 / dur) }' < /dev/null`
+        if test $nclosecalls10 -gt 5 -a $nclosecalls -gt 1
+        then
+                print_bug $nclosecalls "Reader Batch close calls in" $(($dur/60)) minute run: $i
+        else
+                print_warning $nclosecalls "Reader Batch close calls in" $(($dur/60)) minute run: $i
+        fi
 fi
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
index 8ca9f21f2efc..5236e073919d 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
@@ -8,9 +8,9 @@
 #
 # Usage: kvm-test-1-run.sh config builddir resdir minutes qemu-args boot_args
 #
-# qemu-args defaults to "-nographic", along with arguments specifying the
-#                       number of CPUs and other options generated from
-#                       the underlying CPU architecture.
+# qemu-args defaults to "-enable-kvm -soundhw pcspk -nographic", along with
+#                       arguments specifying the number of CPUs and other
+#                       options generated from the underlying CPU architecture.
 # boot_args defaults to value returned by the per_version_boot_params
 #                       shell function.
 #
@@ -138,7 +138,7 @@ then
 fi
 
 # Generate -smp qemu argument.
-qemu_args="-nographic $qemu_args"
+qemu_args="-enable-kvm -soundhw pcspk -nographic $qemu_args"
 cpu_count=`configNR_CPUS.sh $config_template`
 cpu_count=`configfrag_boot_cpus "$boot_args" "$config_template" "$cpu_count"`
 vcpus=`identify_qemu_vcpus`
@@ -168,6 +168,7 @@ then
         touch $resdir/buildonly
         exit 0
 fi
+echo "NOTE: $QEMU either did not run or was interactive" > $builddir/console.log
 echo $QEMU $qemu_args -m 512 -kernel $resdir/bzImage -append \"$qemu_append $boot_args\" > $resdir/qemu-cmd
 ( $QEMU $qemu_args -m 512 -kernel $resdir/bzImage -append "$qemu_append $boot_args"; echo $? > $resdir/qemu-retval ) &
 qemu_pid=$!
diff --git a/tools/testing/selftests/rcutorture/bin/parse-build.sh b/tools/testing/selftests/rcutorture/bin/parse-build.sh
index 499d1e598e42..a6b57622c2e5 100755
--- a/tools/testing/selftests/rcutorture/bin/parse-build.sh
+++ b/tools/testing/selftests/rcutorture/bin/parse-build.sh
@@ -26,12 +26,15 @@
 #
 # Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
 
-T=$1
+F=$1
 title=$2
+T=/tmp/parse-build.sh.$$
+trap 'rm -rf $T' 0
+mkdir $T
 
 . functions.sh
 
-if grep -q CC < $T
+if grep -q CC < $F
 then
         :
 else
@@ -39,18 +42,21 @@ else
         exit 1
 fi
 
-if grep -q "error:" < $T
+if grep -q "error:" < $F
 then
         print_bug $title build errors:
-        grep "error:" < $T
+        grep "error:" < $F
         exit 2
 fi
-exit 0
 
-if egrep -q "rcu[^/]*\.c.*warning:|rcu.*\.h.*warning:" < $T
+grep warning: < $F > $T/warnings
+grep "include/linux/*rcu*\.h:" $T/warnings > $T/hwarnings
+grep "kernel/rcu/[^/]*:" $T/warnings > $T/cwarnings
+cat $T/hwarnings $T/cwarnings > $T/rcuwarnings
+if test -s $T/rcuwarnings
 then
         print_warning $title build errors:
-        egrep "rcu[^/]*\.c.*warning:|rcu.*\.h.*warning:" < $T
+        cat $T/rcuwarnings
         exit 2
 fi
 exit 0
diff --git a/tools/testing/selftests/rcutorture/bin/parse-console.sh b/tools/testing/selftests/rcutorture/bin/parse-console.sh
index f962ba4cf68b..d8f35cf116be 100755
--- a/tools/testing/selftests/rcutorture/bin/parse-console.sh
+++ b/tools/testing/selftests/rcutorture/bin/parse-console.sh
@@ -36,7 +36,7 @@ if grep -Pq '\x00' < $file
 then
         print_warning Console output contains nul bytes, old qemu still running?
 fi
-egrep 'Badness|WARNING:|Warn|BUG|===========|Call Trace:|Oops:' < $file | grep -v 'ODEBUG: ' | grep -v 'Warning: unable to open an initial console' > $T
+egrep 'Badness|WARNING:|Warn|BUG|===========|Call Trace:|Oops:|Stall ended before state dump start' < $file | grep -v 'ODEBUG: ' | grep -v 'Warning: unable to open an initial console' > $T
 if test -s $T
 then
         print_warning Assertion failure in $file $title