diff options
Diffstat (limited to 'libc/sysdeps/unix/sysv/linux/s390/s390-32/mmap.S')
| -rw-r--r-- | libc/sysdeps/unix/sysv/linux/s390/s390-32/mmap.S | 15 |
1 files changed, 3 insertions, 12 deletions
diff --git a/libc/sysdeps/unix/sysv/linux/s390/s390-32/mmap.S b/libc/sysdeps/unix/sysv/linux/s390/s390-32/mmap.S index 6e5ba94c1..0357ab461 100644 --- a/libc/sysdeps/unix/sysv/linux/s390/s390-32/mmap.S +++ b/libc/sysdeps/unix/sysv/linux/s390/s390-32/mmap.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2000, 2001, 2007 Free Software Foundation, Inc. +/* Copyright (C) 2000-2012 Free Software Foundation, Inc. Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). This file is part of the GNU C Library. @@ -40,8 +40,8 @@ ENTRY(__mmap) cfi_adjust_cfa_offset (120) st %r1,0(%r15) /* store back chain */ - /* Store parameters on stack, because old_mmap/mmap2 - * take only one parameter: a pointer to the parameter area + /* Store parameters on stack, because mmap2 + * takes only one parameter: a pointer to the parameter area */ st %r6,0x70(%r15) /* Store 'fd'. */ st %r5,0x6C(%r15) /* Store 'flags'. */ @@ -50,10 +50,6 @@ ENTRY(__mmap) st %r2,0x60(%r15) /* Store 'start'. */ l %r1,216(%r15) /* Load offset. */ -#ifdef __ASSUME_MMAP2_SYSCALL - /* I don't think it is worthwhile trying to use mmap2 whenever - * it is available. Only use it when we are sure the syscall - * exists. */ tml %r1,0x0fff /* Offset page aligned ? */ lhi %r2,-EINVAL jnz 1f /* No -> EINVAL. */ @@ -61,11 +57,6 @@ ENTRY(__mmap) st %r1,0x74(%r15) /* Store page offset. */ la %r2,0x60(%r15) /* Load address of parameter list. */ svc SYS_ify(mmap2) /* Do the system call trap. */ -#else - st %r1,0x74(%r15) /* Store offset unmodified. */ - la %r2,0x60(%r15) /* Load address of parameter list. */ - svc SYS_ify(mmap) /* Do the system call trap. */ -#endif 1: l %r15,0(%r15) /* Load back chain. */ cfi_adjust_cfa_offset (-120) |