diff options
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/ia64/syscall.S')
| -rw-r--r-- | ports/sysdeps/unix/sysv/linux/ia64/syscall.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/ia64/syscall.S b/ports/sysdeps/unix/sysv/linux/ia64/syscall.S index 8bb77d255c..4cd75b8d4c 100644 --- a/ports/sysdeps/unix/sysv/linux/ia64/syscall.S +++ b/ports/sysdeps/unix/sysv/linux/ia64/syscall.S @@ -19,6 +19,10 @@ #include <sysdep.h> ENTRY(syscall) + /* We are called like so: + {out0,out1,...,out6} registers -> {NR, arg1, ..., arg6} + Shift the register window so that {out1...out6} are available + in {out0...out5} like the kernel syscall handler expects. */ alloc r2=ar.pfs,1,0,8,0 mov r15=r32 /* syscall number */ break __BREAK_SYSCALL |