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

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

[Chen Gang S]

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@qq.com>
To: msalter@redhat.com, a-jacquiot@ti.com
CC: linux-c6x-dev@linux-c6x.org <linux-c6x-dev@linux-c6x.org>, linux-kernel@vger.kernel.org <linux-kernel@vger.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@gmail.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

Re: [PATCH] c6x: asm: Add default flat.h according to xtensa architecture

[Mark Salter]

On Tue, 2015-03-03 at 07:24 +0800, Chen Gang wrote:
> 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@gmail.com>
> ---

Thanks! I added this to the c6x tree for next merge window.

>  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 */