diff options
| author | David S. Miller <davem@davemloft.net> | 2012-03-28 22:35:26 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-03-28 22:35:26 -0700 |
| commit | 88d85d4f001fac0fd7ef4e3d05ca8a7d50b0c98f (patch) | |
| tree | dac097e3214f049492bbf41a575b6d846af3dd9e /sysdeps/sparc/sparc32 | |
| parent | e5aa83e16d02bc8f1b1a352f83e12f3f14c4d4ac (diff) | |
| download | glibc-88d85d4f001fac0fd7ef4e3d05ca8a7d50b0c98f.tar.gz | |
Optimize mempcpy on sparc.
* sysdeps/sparc/sparc32/memcpy.S: Implement mempcpy using a stub
that branches into memcpy.
* sysdeps/sparc/sparc64/memcpy.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy-niagara1.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy-niagara2.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy.S: Add mempcpy multiarch
bits.
* sysdeps/sparc/sparc64/rtld-memcpy.c: Include generic mempcpy
implementation too.
* sysdeps/sparc/mempcpy.S: New file.
Diffstat (limited to 'sysdeps/sparc/sparc32')
| -rw-r--r-- | sysdeps/sparc/sparc32/memcpy.S | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/sysdeps/sparc/sparc32/memcpy.S b/sysdeps/sparc/sparc32/memcpy.S index a36f1d6aa0..82fa6d1045 100644 --- a/sysdeps/sparc/sparc32/memcpy.S +++ b/sysdeps/sparc/sparc32/memcpy.S @@ -104,11 +104,17 @@ std %t2, [%dst + offset + offset2 + 0x08]; .text - .align 4 +ENTRY(__mempcpy) + add %o0, %o2, %g1 + ba 101f + st %g1, [%sp + 64] +END(__mempcpy) + .align 4 ENTRY(memcpy) /* %o0=dst %o1=src %o2=len */ - sub %o0, %o1, %o4 st %o0, [%sp + 64] +101: + sub %o0, %o1, %o4 9: andcc %o4, 3, %o5 0: bne 86f cmp %o2, 15 @@ -641,3 +647,7 @@ ENTRY(memcpy) /* %o0=dst %o1=src %o2=len */ END(memcpy) libc_hidden_builtin_def (memcpy) + +libc_hidden_def (__mempcpy) +weak_alias (__mempcpy, mempcpy) +libc_hidden_builtin_def (mempcpy) |