sh: Add support for SH2A freestanding build

SH2A toolchains often only provide an fdpic version of libgcc. This
can't be used with bare-metal software like U-Boot, so this patch
provides the necessary functions extracted from libgcc.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
This commit is contained in:
Phil Edworthy 2011-06-02 22:15:27 +00:00 committed by Nobuhiro Iwamatsu
parent 7fbeb6422d
commit eeb84df6e4
8 changed files with 868 additions and 0 deletions

25
arch/sh/lib/libgcc.h Normal file
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@ -0,0 +1,25 @@
#ifndef __ASM_LIBGCC_H
#define __ASM_LIBGCC_H
#include <asm/byteorder.h>
typedef int word_type __attribute__ ((mode (__word__)));
#ifdef __BIG_ENDIAN
struct DWstruct {
int high, low;
};
#elif defined(__LITTLE_ENDIAN)
struct DWstruct {
int low, high;
};
#else
#error I feel sick.
#endif
typedef union {
struct DWstruct s;
long long ll;
} DWunion;
#endif /* __ASM_LIBGCC_H */