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From: guoren@kernel.org
To: arnd@arndb.de
Cc: guoren@kernel.org, linux-kernel@vger.kernel.org,
	rostedt@goodmis.org, mingo@redhat.com, oleg@redhat.com,
	linux-arch@vger.kernel.org, Guo Ren <ren_guo@c-sky.com>
Subject: [PATCH 14/14] csky: Add EM_CSKY_OLD 39
Date: Mon, 31 Dec 2018 23:33:04 +0800	[thread overview]
Message-ID: <1546270384-4590-12-git-send-email-guoren@kernel.org> (raw)
In-Reply-To: <1546270384-4590-1-git-send-email-guoren@kernel.org>

From: Guo Ren <ren_guo@c-sky.com>

C-SKY historically used 39, the same value as MCORE, from which the
architecture was derived.

C-SKY binutils support both EM_CSKY and EM_CSKY_OLD, confirmed by
binutils:include/elf/common.h

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
---
 arch/csky/include/asm/elf.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/csky/include/asm/elf.h b/arch/csky/include/asm/elf.h
index d6dbc00..e1ec558 100644
--- a/arch/csky/include/asm/elf.h
+++ b/arch/csky/include/asm/elf.h
@@ -8,6 +8,7 @@
 #include <abi/regdef.h>
 
 #define ELF_ARCH EM_CSKY
+#define EM_CSKY_OLD 39
 
 /* CSKY Relocations */
 #define R_CSKY_NONE               0
@@ -43,7 +44,8 @@ typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 /*
  * This is used to ensure we don't load something for the wrong architecture.
  */
-#define elf_check_arch(x) ((x)->e_machine == ELF_ARCH)
+#define elf_check_arch(x) (((x)->e_machine == ELF_ARCH) || \
+			   ((x)->e_machine == EM_CSKY_OLD))
 
 /*
  * These are used to set parameters in the core dumps.
-- 
2.7.4


      parent reply	other threads:[~2018-12-31 15:35 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-31 15:32 [PATCH 01/14] csky: fixup abiv2 mmap(... O_SYNC) failed guoren
2018-12-31 15:32 ` [PATCH 02/14] csky: bugfix gdb coredump error guoren
2018-12-31 15:32 ` [PATCH 03/14] csky: fixup remove vdsp implement for kernel guoren
2018-12-31 15:32 ` [PATCH 04/14] csky: remove syscall_exit_work guoren
2018-12-31 15:32 ` [PATCH 05/14] csky: fixup save hi,lo,dspcr regs in switch_stack guoren
2018-12-31 15:32 ` [PATCH 07/14] csky: CPU-hotplug supported for SMP guoren
2018-12-31 15:32 ` [PATCH 08/14] csky: stacktrace supported guoren
2018-12-31 15:33 ` [PATCH 09/14] csky: optimize kernel panic print guoren
2018-12-31 15:33 ` [PATCH 10/14] csky: remove unused members in processor.h guoren
2018-12-31 15:33 ` [PATCH 11/14] csky: basic ftrace supported guoren
2018-12-31 15:33 ` [PATCH 12/14] csky: ftrace call graph supported guoren
2018-12-31 15:33 ` guoren [this message]

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