diff options
author | Marek Vasut <marex@denx.de> | 2012-08-12 16:53:35 +0200 |
---|---|---|
committer | Daniel Schwierzeck <daniel.schwierzeck@gmail.com> | 2012-08-17 20:13:48 +0200 |
commit | d2aa5dca74fcf8cbe7fa1f27606a5663bb52d3e6 (patch) | |
tree | 107ccecbec29b60ebea248200b7c767b9e279e63 /arch/mips/lib/ashrdi3.c | |
parent | 9a16f310c0182e0744341b85c43ec8c4f50ae4dc (diff) |
dm: mips: Import libgcc components from Linux
Import ashldr3, ashrdi3 and lshrdi3 to squash possible libgcc fp mismatch,
resulting in the following warning:
mips-linux-gnu-ld: Warning: /usr/lib/gcc/mips-linux-gnu/4.7/libgcc.a(_lshrdi3.o) uses hard float, u-boot uses soft float
mips-linux-gnu-ld: Warning: /usr/lib/gcc/mips-linux-gnu/4.7/libgcc.a(_ashldi3.o) uses hard float, u-boot uses soft float
Imported from Linux (linux-next 20120723) as of commit:
commit 72fbfb260197a52c2bc2583f3e8f15d261d0f924
Author: Ralf Baechle <ralf@linux-mips.org>
Date: Wed Jun 7 13:25:37 2006 +0100
[MIPS] Fix optimization for size build.
It took a while longer than on other architectures but gcc has finally
started to strike us as well ...
This also fixes the damage by 6edfba1b33c701108717f4e036320fc39abe1912.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
[<daniel.schwierzeck@gmail.com>: removed USE_PRIVATE_LIBGCC = yes]
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Diffstat (limited to 'arch/mips/lib/ashrdi3.c')
-rw-r--r-- | arch/mips/lib/ashrdi3.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/mips/lib/ashrdi3.c b/arch/mips/lib/ashrdi3.c new file mode 100644 index 0000000000..f30359b73f --- /dev/null +++ b/arch/mips/lib/ashrdi3.c @@ -0,0 +1,27 @@ +#include "libgcc.h" + +long long __ashrdi3(long long u, word_type b) +{ + DWunion uu, w; + word_type bm; + + if (b == 0) + return u; + + uu.ll = u; + bm = 32 - b; + + if (bm <= 0) { + /* w.s.high = 1..1 or 0..0 */ + w.s.high = + uu.s.high >> 31; + w.s.low = uu.s.high >> -bm; + } else { + const unsigned int carries = (unsigned int) uu.s.high << bm; + + w.s.high = uu.s.high >> b; + w.s.low = ((unsigned int) uu.s.low >> b) | carries; + } + + return w.ll; +} |