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[RFC] perf build: Add EXTRA_LDFLAGS option to makefile

Started byZubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
First post2016-02-09 14:40 +0100
Last post2016-02-16 09:00 +0100
Articles 3 — 3 participants

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  [RFC] perf build: Add EXTRA_LDFLAGS option to makefile Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> - 2016-02-09 14:40 +0100
    Re: [RFC] perf build: Add EXTRA_LDFLAGS option to makefile Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-02-12 00:00 +0100
    [tip:perf/core] perf build: Add EXTRA_LDFLAGS option to makefile tip-bot for Zubair Lutfullah Kakakhel <tipbot@zytor.com> - 2016-02-16 09:00 +0100

#1330234 — [RFC] perf build: Add EXTRA_LDFLAGS option to makefile

FromZubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Date2016-02-09 14:40 +0100
Subject[RFC] perf build: Add EXTRA_LDFLAGS option to makefile
Message-ID<r0gGm-4Dt-17@gated-at.bofh.it>
To compile for little-endian systems, you need to pass -EL to CC
and LD.

EXTRA_CFLAGS works to pass -EL to CC.
Add EXTRA_LDFLAGS to pass -EL to LD.

Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>

---
There might be a better way to add EXTRA_LDFLAGS to the makefile?

Can compile for little endian now using
make ARCH=mips CROSS_COMPILE=mips-mti-linux-gnu- EXTRA_CFLAGS=-EL
EXTRA_LDFLAGS=-EL

Based on v4.5-rc3
---
 tools/perf/Makefile.perf | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 5d34815..617acc1 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -136,6 +136,8 @@ $(call allow-override,CC,$(CROSS_COMPILE)gcc)
 $(call allow-override,AR,$(CROSS_COMPILE)ar)
 $(call allow-override,LD,$(CROSS_COMPILE)ld)
 
+LD += $(EXTRA_LDFLAGS)
+
 PKG_CONFIG = $(CROSS_COMPILE)pkg-config
 
 RM      = rm -f
-- 
1.9.1

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#1332416

FromArnaldo Carvalho de Melo <acme@kernel.org>
Date2016-02-12 00:00 +0100
Message-ID<r18no-6Ne-7@gated-at.bofh.it>
In reply to#1330234
Em Tue, Feb 09, 2016 at 01:33:38PM +0000, Zubair Lutfullah Kakakhel escreveu:
> To compile for little-endian systems, you need to pass -EL to CC
> and LD.
> 
> EXTRA_CFLAGS works to pass -EL to CC.
> Add EXTRA_LDFLAGS to pass -EL to LD.
> 
> Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>

Looks ok, applied, thanks,

- Arnaldo

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#1335114 — [tip:perf/core] perf build: Add EXTRA_LDFLAGS option to makefile

Fromtip-bot for Zubair Lutfullah Kakakhel <tipbot@zytor.com>
Date2016-02-16 09:00 +0100
Subject[tip:perf/core] perf build: Add EXTRA_LDFLAGS option to makefile
Message-ID<r2IIa-4OP-23@gated-at.bofh.it>
In reply to#1330234
Commit-ID:  37b4e2020a5f4dbecf22ee3efe92de6dbea1c5f0
Gitweb:     http://git.kernel.org/tip/37b4e2020a5f4dbecf22ee3efe92de6dbea1c5f0
Author:     Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
AuthorDate: Tue, 9 Feb 2016 13:33:38 +0000
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 12 Feb 2016 11:30:20 -0300

perf build: Add EXTRA_LDFLAGS option to makefile

To compile for little-endian systems, you need to pass -EL to CC and LD.

EXTRA_CFLAGS works to pass -EL to CC.
Add EXTRA_LDFLAGS to pass -EL to LD.

Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1455024818-15842-1-git-send-email-Zubair.Kakakhel@imgtec.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile.perf | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index d404117..4a4fad4 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -139,6 +139,8 @@ $(call allow-override,CC,$(CROSS_COMPILE)gcc)
 $(call allow-override,AR,$(CROSS_COMPILE)ar)
 $(call allow-override,LD,$(CROSS_COMPILE)ld)
 
+LD += $(EXTRA_LDFLAGS)
+
 PKG_CONFIG = $(CROSS_COMPILE)pkg-config
 
 RM      = rm -f

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