mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-30 16:39:35 +00:00
d2aa5dca74
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>
27 lines
445 B
C
27 lines
445 B
C
#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;
|
|
}
|