Merge tag 'perf-core-for-mingo-2' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
User visible changes:
- Fix to free temporal Dwarf_Frame correctly in 'perf probe', fixing a
regression introduced in perf/core that prevented, at least, adding
an uprobe collecting function parameter values (Masami Hiramatsu)
- Fix output of %llu for 64 bit values read on 32 bit machines in
libtraceevent (Steven Rostedt)
Developer visible:
- Clean CFLAGS and LDFLAGS for fixdep in tools/build (Wang Nan)
- Don't do a feature check when cleaning tools/lib/bpf (Wang Nan)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/tools/build/Makefile.include b/tools/build/Makefile.include
index 4e09ad6..6254760 100644
--- a/tools/build/Makefile.include
+++ b/tools/build/Makefile.include
@@ -4,7 +4,7 @@
fixdep:
else
fixdep:
- $(Q)$(MAKE) -C $(srctree)/tools/build fixdep
+ $(Q)$(MAKE) -C $(srctree)/tools/build CFLAGS= LDFLAGS= fixdep
endif
.PHONY: fixdep
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
index a3caaf3..636e3dd 100644
--- a/tools/lib/bpf/Makefile
+++ b/tools/lib/bpf/Makefile
@@ -71,7 +71,17 @@
INCLUDES = -I. -I$(srctree)/tools/include -I$(srctree)/arch/$(ARCH)/include/uapi -I$(srctree)/include/uapi
FEATURE_CHECK_CFLAGS-bpf = $(INCLUDES)
+check_feat := 1
+NON_CHECK_FEAT_TARGETS := clean TAGS tags cscope help
+ifdef MAKECMDGOALS
+ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),)
+ check_feat := 0
+endif
+endif
+
+ifeq ($(check_feat),1)
include $(srctree)/tools/build/Makefile.feature
+endif
export prefix libdir src obj
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 2a912df..68276f3 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -4968,13 +4968,12 @@
sizeof(long) != 8) {
char *p;
- ls = 2;
/* make %l into %ll */
- p = strchr(format, 'l');
- if (p)
+ if (ls == 1 && (p = strchr(format, 'l')))
memmove(p+1, p, strlen(p)+1);
else if (strcmp(format, "%p") == 0)
strcpy(format, "0x%llx");
+ ls = 2;
}
switch (ls) {
case -2:
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 1cab05a..2be10fb 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -654,6 +654,7 @@
static int call_probe_finder(Dwarf_Die *sc_die, struct probe_finder *pf)
{
Dwarf_Attribute fb_attr;
+ Dwarf_Frame *frame = NULL;
size_t nops;
int ret;
@@ -683,26 +684,24 @@
ret = dwarf_getlocation_addr(&fb_attr, pf->addr, &pf->fb_ops, &nops, 1);
if (ret <= 0 || nops == 0) {
pf->fb_ops = NULL;
- ret = 0;
#if _ELFUTILS_PREREQ(0, 142)
} else if (nops == 1 && pf->fb_ops[0].atom == DW_OP_call_frame_cfa &&
pf->cfi != NULL) {
- Dwarf_Frame *frame = NULL;
if (dwarf_cfi_addrframe(pf->cfi, pf->addr, &frame) != 0 ||
dwarf_frame_cfa(frame, &pf->fb_ops, &nops) != 0) {
pr_warning("Failed to get call frame on 0x%jx\n",
(uintmax_t)pf->addr);
- ret = -ENOENT;
+ free(frame);
+ return -ENOENT;
}
- free(frame);
#endif
}
/* Call finder's callback handler */
- if (ret >= 0)
- ret = pf->callback(sc_die, pf);
+ ret = pf->callback(sc_die, pf);
- /* *pf->fb_ops will be cached in libdw. Don't free it. */
+ /* Since *pf->fb_ops can be a part of frame. we should free it here. */
+ free(frame);
pf->fb_ops = NULL;
return ret;