This is a note to let you know that I've just added the patch titled
perf: Use default compiler mode by default
to the 2.6.32-longterm tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/longterm/longterm-queue-2.6.32.git;a=summary
The filename of the patch is:
perf-use-default-compiler-mode-by-default.patch
and it can be found in the queue-2.6.32 subdirectory.
If you, or anyone else, feels it should not be added to the 2.6.32 longterm
tree,
please let <[email protected]> know about it.
>From 72b67e4369c168178c5edfa9b64c9eebd94aae8a Mon Sep 17 00:00:00 2001
From: Michael S. Tsirkin <[email protected]>
Date: Sun, 22 Nov 2009 14:13:35 +0200
Subject: perf: Use default compiler mode by default
From: Michael S. Tsirkin <[email protected]>
commit 81516c5fc83a13a1d12f466aa7e14f5fd62a63ce upstream.
gcc with no flags typically is a sane default for systems to
use, and looking at the running kernel is probably broken for
cross-builds anyway, so let's not do this. Add EXTRA_CFLAGS so
that users can override default gcc mode if they want to.
Signed-off-by: Michael S. Tsirkin <[email protected]>
Acked-by: Arjan van de Ven <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
[bwh: Backport to 2.6.32]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
tools/perf/Makefile | 18 +++---------------
1 file changed, 3 insertions(+), 15 deletions(-)
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -148,6 +148,8 @@ all::
# broken, or spawning external process is slower than built-in grep perf has).
#
# Define LDFLAGS=-static to build a static binary.
+#
+# Define EXTRA_CFLAGS=-m64 or EXTRA_CFLAGS=-m32 as appropriate for
cross-builds.
PERF-VERSION-FILE: .FORCE-PERF-VERSION-FILE
@$(SHELL_PATH) util/PERF-VERSION-GEN
@@ -160,20 +162,6 @@ uname_R := $(shell sh -c 'uname -r 2>/de
uname_P := $(shell sh -c 'uname -p 2>/dev/null || echo not')
uname_V := $(shell sh -c 'uname -v 2>/dev/null || echo not')
-#
-# Add -m32 for cross-builds:
-#
-ifdef NO_64BIT
- MBITS := -m32
-else
- #
- # If we're on a 64-bit kernel, use -m64:
- #
- ifneq ($(patsubst %64,%,$(uname_M)),$(uname_M))
- MBITS := -m64
- endif
-endif
-
# CFLAGS and LDFLAGS are for the users to override from the command line.
#
@@ -210,7 +198,7 @@ ifndef PERF_DEBUG
CFLAGS_OPTIMIZE = -O6
endif
-CFLAGS = $(MBITS) -ggdb3 -Wall -Wextra -std=gnu99 -Werror $(CFLAGS_OPTIMIZE)
-D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS)
+CFLAGS = -ggdb3 -Wall -Wextra -std=gnu99 -Werror $(CFLAGS_OPTIMIZE)
-D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
EXTLIBS = -lpthread -lrt -lelf -lm
ALL_CFLAGS = $(CFLAGS)
ALL_LDFLAGS = $(LDFLAGS)
Patches currently in longterm-queue-2.6.32 which might be from [email protected]
are
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/perf-tools-add-v-2-option-to-help-debug-config-issue.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/perf-use-default-compiler-mode-by-default.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/perf-tools-suggest-static-libraries-as-well.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/udp-fix-bogus-ufo-packet-generation.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/perf-tools-support-static-build.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/virtio_net-fix-oom-handling-on-tx.patch
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