diff options
| author | Mike Frysinger <vapier@gentoo.org> | 2007-09-15 11:02:36 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2007-09-15 11:02:36 +0000 |
| commit | 783107dbed9ac48f3db147f4ed6cf7a9aa75418e (patch) | |
| tree | a0e081576d4a86660127740fb6cfde88ebd0aa32 /libc/sysdeps/linux/bfin/clone.c | |
| parent | f032afc5fd03f45ecc346b1dbb00b9b3dc0e0e2a (diff) | |
use gcc input constraints to avoid often duplicated reloads when making syscalls
Diffstat (limited to 'libc/sysdeps/linux/bfin/clone.c')
| -rw-r--r-- | libc/sysdeps/linux/bfin/clone.c | 20 |
1 files changed, 6 insertions, 14 deletions
diff --git a/libc/sysdeps/linux/bfin/clone.c b/libc/sysdeps/linux/bfin/clone.c index 0ba1d5a4a..899738e2d 100644 --- a/libc/sysdeps/linux/bfin/clone.c +++ b/libc/sysdeps/linux/bfin/clone.c @@ -19,11 +19,7 @@ clone (int (*fn)(void *arg), void *child_stack, int flags, void *arg, ...) #ifdef __BFIN_FDPIC__ __asm__ __volatile__ ( - "r1 = %2;" - "r0 = %3;" - "P0 = %1;" "excpt 0;" /*Call sys_clone*/ - "%0 = r0;" "cc = r0 == 0;" "if !cc jump .Lxxx;" /* if (rval != 0) skip to parent */ "r0 = %4;" @@ -35,16 +31,12 @@ clone (int (*fn)(void *arg), void *child_stack, int flags, void *arg, ...) "p0 = %6;" "excpt 0;" /* Call sys_exit */ ".Lxxx: nop;" - : "=d" (rval) - : "i" (__NR_clone), "a" (child_stack), "a" (flags), "a" (arg), "a" (fn), "i" (__NR_exit) - : "CC", "R0", "R1", "P0"); + : "=q0" (rval) + : "qA" (__NR_clone), "q1" (child_stack), "q0" (flags), "a" (arg), "a" (fn), "i" (__NR_exit) + : "CC"); #else __asm__ __volatile__ ( - "r1 = %2;" - "r0 = %3;" - "P0 = %1;" "excpt 0;" /*Call sys_clone*/ - "%0 = r0;" "cc = r0 == 0;" "if !cc jump .Lxxx;" /* if (rval != 0) skip to parent */ "r0 = %4;" @@ -54,9 +46,9 @@ clone (int (*fn)(void *arg), void *child_stack, int flags, void *arg, ...) "p0 = %6;" "excpt 0;" /* Call sys_exit */ ".Lxxx: nop;" - : "=d" (rval) - : "i" (__NR_clone), "a" (child_stack), "a" (flags), "a" (arg), "a" (fn), "i" (__NR_exit) - : "CC", "R0", "R1", "P0"); + : "=q0" (rval) + : "qA" (__NR_clone), "q1" (child_stack), "q0" (flags), "a" (arg), "a" (fn), "i" (__NR_exit) + : "CC"); #endif } else { |