linux-kernel - [PATCH] scripts/recordmcount.pl: support big endian for ARCH sh

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Message-Id: <20210210150435.2171567-1-rong.a.chen@intel.com>
Date:   Wed, 10 Feb 2021 23:04:35 +0800
From:   Rong Chen <rong.a.chen@...el.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>
Cc:     linux-sh@...r.kernel.org, linux-kernel@...r.kernel.org,
        Rong Chen <rong.a.chen@...el.com>,
        kernel test robot <lkp@...el.com>
Subject: [PATCH] scripts/recordmcount.pl: support big endian for ARCH sh

The kernel test robot reported the following issue:
    CC [M]  drivers/soc/litex/litex_soc_ctrl.o
  sh4-linux-objcopy: Unable to change endianness of input file(s)
  sh4-linux-ld: cannot find drivers/soc/litex/.tmp_gl_litex_soc_ctrl.o: No such file or directory
  sh4-linux-objcopy: 'drivers/soc/litex/.tmp_mx_litex_soc_ctrl.o': No such file

The problem is that the format of input file is elf32-shbig-linux,
but sh4-linux-objcopy wants to output a file which format is elf32-sh-linux:

  $ sh4-linux-objdump -d drivers/soc/litex/litex_soc_ctrl.o | grep format
  drivers/soc/litex/litex_soc_ctrl.o:     file format elf32-shbig-linux

Reported-by: kernel test robot <lkp@...el.com>
Link: https://lore.kernel.org/linux-mm/202101261118.GbbYSlHu-lkp@intel.com
Signed-off-by: Rong Chen <rong.a.chen@...el.com>
---
 scripts/recordmcount.pl | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index 56c801502b9a..867860ea57da 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -265,7 +265,11 @@ if ($arch eq "x86_64") {
 
     # force flags for this arch
     $ld .= " -m shlelf_linux";
-    $objcopy .= " -O elf32-sh-linux";
+    if ($endian eq "big") {
+        $objcopy .= " -O elf32-shbig-linux";
+    } else {
+        $objcopy .= " -O elf32-sh-linux";
+    }
 
 } elsif ($arch eq "powerpc") {
     my $ldemulation;
-- 
2.20.1