Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf tools: Fix fallback to cplus_demangle() when bfd_demangle() is not available
  perf annotate: Fix handling of goto labels that are valid hex numbers
  tracing: Properly align linker defined symbols
  perf symbols: Fix directory descriptor leaking
  perf: Fix various display bugs with parent filtering

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 48c5299cbf26e796e3188f397faa96cd3889a112..4b5902ad0d5d6d655178ae6cb4d1f1c23b34377c 100644 (file)
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -63,6 +63,12 @@
 /* Align . to a 8 byte boundary equals to maximum function alignment. */
 #define ALIGN_FUNCTION()  . = ALIGN(8)
 
+/*
+ * Align to a 32 byte boundary equal to the
+ * alignment gcc 4.5 uses for a struct
+ */
+#define STRUCT_ALIGN() . = ALIGN(32)
+
 /* The actual configuration determine if the init/exit sections
  * are handled as text/data or they can be discarded (which
  * often happens at runtime)
@@ -166,7 +172,11 @@
        LIKELY_PROFILE()                                                \
        BRANCH_PROFILE()                                                \
        TRACE_PRINTKS()                                                 \
+                                                                       \
+       STRUCT_ALIGN();                                                 \
        FTRACE_EVENTS()                                                 \
+                                                                       \
+       STRUCT_ALIGN();                                                 \
        TRACE_SYSCALLS()
 
 /*

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 3d8f31ed771df18770b1e31361485d39400b5476..d75c28a825f5356d9b0dbe16459111d3b6c5e81a 100644 (file)
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -600,30 +600,32 @@ endif
 
 ifdef NO_DEMANGLE
        BASIC_CFLAGS += -DNO_DEMANGLE
-else ifdef HAVE_CPLUS_DEMANGLE
-       EXTLIBS += -liberty
-       BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE
 else
-       has_bfd := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd "$(QUIET_STDERR)" && echo y")
-
-       ifeq ($(has_bfd),y)
-               EXTLIBS += -lbfd
+       ifdef HAVE_CPLUS_DEMANGLE
+               EXTLIBS += -liberty
+               BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE
        else
-               has_bfd_iberty := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd -liberty "$(QUIET_STDERR)" && echo y")
-               ifeq ($(has_bfd_iberty),y)
-                       EXTLIBS += -lbfd -liberty
+               has_bfd := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd "$(QUIET_STDERR)" && echo y")
+
+               ifeq ($(has_bfd),y)
+                       EXTLIBS += -lbfd
                else
-                       has_bfd_iberty_z := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd -liberty -lz "$(QUIET_STDERR)" && echo y")
-                       ifeq ($(has_bfd_iberty_z),y)
-                               EXTLIBS += -lbfd -liberty -lz
+                       has_bfd_iberty := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd -liberty "$(QUIET_STDERR)" && echo y")
+                       ifeq ($(has_bfd_iberty),y)
+                               EXTLIBS += -lbfd -liberty
                        else
-                               has_cplus_demangle := $(shell sh -c "(echo 'extern char *cplus_demangle(const char *, int);'; echo 'int main(void) { cplus_demangle(0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -liberty "$(QUIET_STDERR)" && echo y")
-                               ifeq ($(has_cplus_demangle),y)
-                                       EXTLIBS += -liberty
-                                       BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE
+                               has_bfd_iberty_z := $(shell sh -c "(echo '\#include <bfd.h>'; echo 'int main(void) { bfd_demangle(0, 0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -lbfd -liberty -lz "$(QUIET_STDERR)" && echo y")
+                               ifeq ($(has_bfd_iberty_z),y)
+                                       EXTLIBS += -lbfd -liberty -lz
                                else
-                                       msg := $(warning No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demangling)
-                                       BASIC_CFLAGS += -DNO_DEMANGLE
+                                       has_cplus_demangle := $(shell sh -c "(echo 'extern char *cplus_demangle(const char *, int);'; echo 'int main(void) { cplus_demangle(0, 0); return 0; }') | $(CC) -x c - $(ALL_CFLAGS) -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) -liberty "$(QUIET_STDERR)" && echo y")
+                                       ifeq ($(has_cplus_demangle),y)
+                                               EXTLIBS += -liberty
+                                               BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE
+                                       else
+                                               msg := $(warning No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demangling)
+                                               BASIC_CFLAGS += -DNO_DEMANGLE
+                                       endif
                                endif
                        endif
                endif

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 07f89b66b318e43748f666f495f87b75f6a34462..784ee0bdda7754f329428e40fa790a22dd331568 100644 (file)
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -631,9 +631,14 @@ int hist_entry__fprintf(struct hist_entry *self, struct hists *pair_hists,
                        u64 session_total)
 {
        char bf[512];
-       hist_entry__snprintf(self, bf, sizeof(bf), pair_hists,
-                            show_displacement, displacement,
-                            true, session_total);
+       int ret;
+
+       ret = hist_entry__snprintf(self, bf, sizeof(bf), pair_hists,
+                                  show_displacement, displacement,
+                                  true, session_total);
+       if (!ret)
+               return 0;
+
        return fprintf(fp, "%s\n", bf);
 }
 
@@ -762,6 +767,7 @@ size_t hists__fprintf(struct hists *self, struct hists *pair,
 print_entries:
        for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) {
                struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
+               int cnt;
 
                if (show_displacement) {
                        if (h->pair != NULL)
@@ -771,8 +777,13 @@ print_entries:
                                displacement = 0;
                        ++position;
                }
-               ret += hist_entry__fprintf(h, pair, show_displacement,
-                                          displacement, fp, self->stats.total_period);
+               cnt = hist_entry__fprintf(h, pair, show_displacement,
+                                         displacement, fp, self->stats.total_period);
+               /* Ignore those that didn't match the parent filter */
+               if (!cnt)
+                       continue;
+
+               ret += cnt;
 
                if (symbol_conf.use_callchain)
                        ret += hist_entry__fprintf_callchain(h, fp, self->stats.total_period);
@@ -965,13 +976,17 @@ static int hist_entry__parse_objdump_line(struct hist_entry *self, FILE *file,
                 * Parse hexa addresses followed by ':'
                 */
                line_ip = strtoull(tmp, &tmp2, 16);
-               if (*tmp2 != ':' || tmp == tmp2)
+               if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0')
                        line_ip = -1;
        }
 
        if (line_ip != -1) {
-               u64 start = map__rip_2objdump(self->ms.map, sym->start);
+               u64 start = map__rip_2objdump(self->ms.map, sym->start),
+                   end = map__rip_2objdump(self->ms.map, sym->end);
+
                offset = line_ip - start;
+               if (offset < 0 || (u64)line_ip > end)
+                       offset = -1;
        }
 
        objdump_line = objdump_line__new(offset, line);

diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index b63e5713849f3abfa25bf8160e8b458e7adf913e..5b276833e2bfea3bae9115f2555b32e3a3b8b628 100644 (file)
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1443,6 +1443,7 @@ static int map_groups__set_modules_path_dir(struct map_groups *self,
 {
        struct dirent *dent;
        DIR *dir = opendir(dir_name);
+       int ret = 0;
 
        if (!dir) {
                pr_debug("%s: cannot open %s dir\n", __func__, dir_name);
@@ -1465,8 +1466,9 @@ static int map_groups__set_modules_path_dir(struct map_groups *self,
 
                        snprintf(path, sizeof(path), "%s/%s",
                                 dir_name, dent->d_name);
-                       if (map_groups__set_modules_path_dir(self, path) < 0)
-                               goto failure;
+                       ret = map_groups__set_modules_path_dir(self, path);
+                       if (ret < 0)
+                               goto out;
                } else {
                        char *dot = strrchr(dent->d_name, '.'),
                             dso_name[PATH_MAX];
@@ -1487,17 +1489,18 @@ static int map_groups__set_modules_path_dir(struct map_groups *self,
                                 dir_name, dent->d_name);
 
                        long_name = strdup(path);
-                       if (long_name == NULL)
-                               goto failure;
+                       if (long_name == NULL) {
+                               ret = -1;
+                               goto out;
+                       }
                        dso__set_long_name(map->dso, long_name);
                        dso__kernel_module_get_build_id(map->dso, "");
                }
        }
 
-       return 0;
-failure:
+out:
        closedir(dir);
-       return -1;
+       return ret;
 }
 
 static char *get_kernel_version(const char *root_dir)