diff options
| author | Masahiro Yamada <yamada.m@jp.panasonic.com> | 2015-02-10 21:37:01 +0900 |
|---|---|---|
| committer | Nobuhiro Iwamatsu <iwamatsu@nigauri.org> | 2015-02-25 13:57:29 +0900 |
| commit | 5f91a3adb86475aada63da0975637ab203184e0a (patch) | |
| tree | 33e1c097b43b0d016b28855a6763b12b0809b154 /arch/sh/lib/udivsi3.S | |
| parent | 72cedad2b89aac188e56ac8bc6a4146786791693 (diff) | |
| download | u-boot-imx-5f91a3adb86475aada63da0975637ab203184e0a.zip u-boot-imx-5f91a3adb86475aada63da0975637ab203184e0a.tar.gz u-boot-imx-5f91a3adb86475aada63da0975637ab203184e0a.tar.bz2 | |
sh: import missing private libraries from Linux 3.19
SuperH is supposed to support the Private Library feature, but it is
actually not working.
If CONFIG_USE_PRIVATE_LIBGCC is enabled, the build fails for the
undefined references to '__sdivsi3_i4i' and '__udivsi3_i4i'.
To fix this error, import missing libraries from Linux 3.19
and adjust them for U-Boot:
- Remove "#include <linux/module.h>" and "EXPORT_SYMBOL(...)"
- Use SPDX-License-Identifier
- Remove white space
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Diffstat (limited to 'arch/sh/lib/udivsi3.S')
| -rw-r--r-- | arch/sh/lib/udivsi3.S | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/arch/sh/lib/udivsi3.S b/arch/sh/lib/udivsi3.S new file mode 100644 index 0000000..53409f1 --- /dev/null +++ b/arch/sh/lib/udivsi3.S @@ -0,0 +1,66 @@ +/* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, + 2004, 2005 + Free Software Foundation, Inc. + + * SPDX-License-Identifier: GPL-2.0+ + */ + +!! libgcc routines for the Renesas / SuperH SH CPUs. +!! Contributed by Steve Chamberlain. +!! sac@cygnus.com + + .balign 4 + .global __udivsi3 + .type __udivsi3, @function +div8: + div1 r5,r4 +div7: + div1 r5,r4; div1 r5,r4; div1 r5,r4 + div1 r5,r4; div1 r5,r4; div1 r5,r4; rts; div1 r5,r4 + +divx4: + div1 r5,r4; rotcl r0 + div1 r5,r4; rotcl r0 + div1 r5,r4; rotcl r0 + rts; div1 r5,r4 + +__udivsi3: + sts.l pr,@-r15 + extu.w r5,r0 + cmp/eq r5,r0 + bf/s large_divisor + div0u + swap.w r4,r0 + shlr16 r4 + bsr div8 + shll16 r5 + bsr div7 + div1 r5,r4 + xtrct r4,r0 + xtrct r0,r4 + bsr div8 + swap.w r4,r4 + bsr div7 + div1 r5,r4 + lds.l @r15+,pr + xtrct r4,r0 + swap.w r0,r0 + rotcl r0 + rts + shlr16 r5 + +large_divisor: + mov #0,r0 + xtrct r4,r0 + xtrct r0,r4 + bsr divx4 + rotcl r0 + bsr divx4 + rotcl r0 + bsr divx4 + rotcl r0 + bsr divx4 + rotcl r0 + lds.l @r15+,pr + rts + rotcl r0 |