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From: Chen Gang <xili_gchen_5257@hotmail.com>
To: realmz6@gmail.com, Richard Weinberger <richard.weinberger@gmail.com>
Cc: adi-buildroot-devel@lists.sourceforge.net,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH] blackfin: Makefile: Skip reloc overflow issue when COMPILE_TEST enabled
Date: Thu, 9 Apr 2015 05:05:34 +0800	[thread overview]
Message-ID: <BLU436-SMTP290324839AA3807DCF0C0EB9FC0@phx.gbl> (raw)

l1_text is at L1_CODE_START (e.g. for bf533, 0xff800000). If the kernel
is too big, it may be overwritten, the related issue:

    LD      init/built-in.o
  init/built-in.o: In function `do_early_param':
  init/main.c:(.init.text+0xe0): relocation truncated to fit: R_BFIN_PCREL24 against symbol `strcmp' defined in .l1.text section in arch/blackfin/lib/lib.a(strcmp.o)
  init/main.c:(.init.text+0x10e): relocation truncated to fit: R_BFIN_PCREL24 against symbol `strcmp' defined in .l1.text section in arch/blackfin/lib/lib.a(strcmp.o)
  init/built-in.o: In function `unknown_bootoption':

blackfin is for embedded system, the size limitation is acceptable, so
it is not the real world issue, which should be skipped if COMPILE_TEST
enabled.


Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
---
 arch/blackfin/Makefile | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile
index 2ece4e3..e5195b4 100644
--- a/arch/blackfin/Makefile
+++ b/arch/blackfin/Makefile
@@ -20,6 +20,9 @@ endif
 KBUILD_AFLAGS           += $(call cc-option,-mno-fdpic)
 KBUILD_CFLAGS_MODULE    += -mlong-calls
 LDFLAGS                 += -m elf32bfin
+ifeq ($(CONFIG_COMPILE_TEST),y)
+LDFLAGS                 += --noinhibit-exec
+endif
 
 KBUILD_DEFCONFIG := BF537-STAMP_defconfig
 
-- 
1.9.3

             reply	other threads:[~2015-04-08 21:05 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-08 21:05 Chen Gang [this message]
  -- strict thread matches above, loose matches on Subject: below --
2015-04-08 21:07 [PATCH] blackfin: Makefile: Skip reloc overflow issue when COMPILE_TEST enabled Chen Gang
2015-04-08 21:05 Chen Gang
2015-04-08 21:10 ` Richard Weinberger
2015-04-08 21:16   ` Chen Gang
2015-04-08 21:19     ` Richard Weinberger
2015-04-09 13:15       ` Chen Gang
2015-04-08 21:03 Chen Gang
2015-04-08 21:10 ` Chen Gang
2015-04-08 21:12   ` Richard Weinberger
2015-04-09 13:28     ` Chen Gang
2015-04-09 13:38       ` Richard Weinberger
2015-04-09 23:14         ` Chen Gang
2015-04-22  9:00 ` Steven Miao
2015-04-22 14:32   ` Chen Gang
2015-04-23  2:51     ` Steven Miao
2015-04-23 14:30       ` Chen Gang
2015-04-24  8:20         ` Steven Miao
2015-04-24 14:28           ` Chen Gang
     [not found] ` <5525994D.6090901@hotmail.com>
2015-07-01 15:31   ` Chen Gang
2015-07-01 15:36   ` Chen Gang

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