linux-kernel - Fwd: [PATCH] c6x: asm: Add default flat.h according to xtensa architecture

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Date:	Tue, 03 Mar 2015 07:28:49 +0800
From:	Chen Gang S <gang.chen@...rus.com.cn>
To:	Chen Gang <762976180@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Fwd: [PATCH] c6x: asm:  Add default flat.h according to xtensa architecture


Just forward the original mail.

-------- Forwarded Message --------
Subject: [PATCH] c6x: asm:  Add default flat.h according to xtensa architecture
Date: Tue, 03 Mar 2015 07:24:26 +0800
From: Chen Gang <762976180@...com>
To: msalter@...hat.com, a-jacquiot@...com
CC: linux-c6x-dev@...ux-c6x.org <linux-c6x-dev@...ux-c6x.org>, linux-kernel@...r.kernel.org <linux-kernel@...r.kernel.org>

For supporting uClinux flat-format executables, c6x needs to define the
fewest features to support it, at present, xtensa architecture has the
fewest feature for it, so just copy xtensa flat.h. The related error:

    CC      fs/binfmt_flat.o
  In file included from fs/binfmt_flat.c:36:0:
  include/linux/flat.h:12:22: fatal error: asm/flat.h: No such file or directory

Signed-off-by: Chen Gang <gang.chen.5i5j@...il.com>
---
 arch/c6x/include/asm/flat.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 arch/c6x/include/asm/flat.h

diff --git a/arch/c6x/include/asm/flat.h b/arch/c6x/include/asm/flat.h
new file mode 100644
index 0000000..94c44ab
--- /dev/null
+++ b/arch/c6x/include/asm/flat.h
@@ -0,0 +1,12 @@
+#ifndef __ASM_C6X_FLAT_H
+#define __ASM_C6X_FLAT_H
+
+#define flat_argvp_envp_on_stack()			0
+#define flat_old_ram_flag(flags)			(flags)
+#define flat_reloc_valid(reloc, size)			((reloc) <= (size))
+#define flat_get_addr_from_rp(rp, relval, flags, p)	get_unaligned(rp)
+#define flat_put_addr_at_rp(rp, val, relval)		put_unaligned(val, rp)
+#define flat_get_relocate_addr(rel)			(rel)
+#define flat_set_persistent(relval, p)			0
+
+#endif /* __ASM_C6X_FLAT_H */
-- 
1.9.3


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