From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Jiri Olsa <jolsa@kernel.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 02/18] perf tools: Fix static build with newer toolchains
Date: Tue, 29 Aug 2017 16:42:38 -0300 [thread overview]
Message-ID: <20170829194254.1338-3-acme@kernel.org> (raw)
In-Reply-To: <20170829194254.1338-1-acme@kernel.org>
From: Jiri Olsa <jolsa@kernel.org>
We can't pass --dynamic-list list into static build anymore, because
compilers starts to scream about that. Fedora 26 started to fail build
with following error:
$ make LDFLAGS=-static
...
/usr/bin/ld: dynamic STT_GNU_IFUNC symbol `strcmp' with pointer equality in `/usr/lib/gcc/x86_64-redhat-linux/7/../../../../lib64/libc.a(strcmp.o
+)' can not be used when making an executable; recompile with -fPIE and relink with -pie
There's no sense for --dynamic-list in static build, because there's no
.dynsym table in static binary. Consequently the traceevent plugins have
never worked with static build, but it was quietly passed by.
To fix this in future I think we should add support to compile plugins
within the perf binary directly for static build.
Reported-and-Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/n/tip-jeg6a7ff9j9hlqn8k4gllzvv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Makefile.perf | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 70ddc65f898d..a700a079a218 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -279,7 +279,13 @@ LIBTRACEEVENT = $(TE_PATH)libtraceevent.a
export LIBTRACEEVENT
LIBTRACEEVENT_DYNAMIC_LIST = $(TE_PATH)libtraceevent-dynamic-list
-LIBTRACEEVENT_DYNAMIC_LIST_LDFLAGS = -Xlinker --dynamic-list=$(LIBTRACEEVENT_DYNAMIC_LIST)
+
+#
+# The static build has no dynsym table, so this does not work for
+# static build. Looks like linker starts to scream about that now
+# (in Fedora 26) so we need to switch it off for static build.
+DYNAMIC_LIST_LDFLAGS = -Xlinker --dynamic-list=$(LIBTRACEEVENT_DYNAMIC_LIST)
+LIBTRACEEVENT_DYNAMIC_LIST_LDFLAGS = $(if $(findstring -static,$(LDFLAGS)),,$(DYNAMIC_LIST_LDFLAGS))
LIBAPI = $(API_PATH)libapi.a
export LIBAPI
--
2.13.5
next prev parent reply other threads:[~2017-08-29 19:42 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-29 19:42 [GIT PULL 00/18] perf/core improvements and fixes Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 01/18] perf stat: Fix path to PMU formats in documentation Arnaldo Carvalho de Melo
2017-08-29 19:42 ` Arnaldo Carvalho de Melo [this message]
2017-08-29 19:42 ` [PATCH 03/18] perf c2c: Fix remote HITM detection for Skylake Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 04/18] perf record: Set read_format for inherit_stat Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 05/18] perf report: Add dump_read function Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 06/18] perf values: Fix thread index bug Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 07/18] perf values: Fix allocation check Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 08/18] perf values: Zero value buffers Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 09/18] perf report: Group stat values on global event id Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 10/18] tools build tests: Don't hardcode gcc name Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 11/18] perf tools: Allow external definition of flex and bison binary names Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 12/18] tools lib: Allow external definition of CC, AR and LD Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 13/18] perf tools: Robustify detection of clang binary Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 14/18] perf tools: Pass full path of FEATURES_DUMP Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 15/18] tools headers: Sync cpu features kernel ABI headers with tooling headers Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 16/18] perf trace beauty: Beautify pkey_{alloc,free,mprotect} arguments Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 17/18] perf probe: Fix kprobe blacklist checking condition Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 18/18] perf symbols: Fix plt entry calculation for ARM and AARCH64 Arnaldo Carvalho de Melo
2017-08-29 21:15 ` [GIT PULL 00/18] perf/core improvements and fixes Ingo Molnar
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