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| author | Joseph Myers <joseph@codesourcery.com> | 2012-08-20 14:37:27 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2012-08-20 14:37:27 +0000 |
| commit | 348363b2c3ee93252a971ead851085739d8d04fb (patch) | |
| tree | b3fbc181c228ad71cbbb0a21e98a9fd6e6966d78 /sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S | |
| parent | bc5bc0e51096cff719eaad4d227ce450a87ee79c (diff) | |
| download | glibc-348363b2c3ee93252a971ead851085739d8d04fb.tar.gz glibc-348363b2c3ee93252a971ead851085739d8d04fb.tar.xz glibc-348363b2c3ee93252a971ead851085739d8d04fb.zip | |
Remove __ASSUME_MMAP2_SYSCALL.
Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S | 37 |
1 files changed, 3 insertions, 34 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S b/sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S index ad6d254db1..8b4bd4556f 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S +++ b/sysdeps/unix/sysv/linux/s390/s390-32/mmap64.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. @@ -41,15 +41,14 @@ ENTRY(__mmap64) cfi_adjust_cfa_offset (120) st %r1,0(%r15) /* Store back chain. */ - /* Store parameters on stack, because mmap2 and old_mmap - * 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'. */ st %r4,0x68(%r15) /* Store 'prot'. */ st %r3,0x64(%r15) /* Store 'length'. */ st %r2,0x60(%r15) /* Store 'start'. */ -#ifdef __NR_mmap2 lm %r0,%r1,216(%r15) /* Load 64 bit offset. */ tml %r1,0x0fff /* Offset page aligned ? */ jnz 2f /* No -> EINVAL. */ @@ -61,11 +60,6 @@ ENTRY(__mmap64) la %r2,0x60(%r15) /* Load address of parameter list. */ svc SYS_ify(mmap2) /* Do the system call trap. */ -#ifndef __ASSUME_MMAP2_SYSCALL - chi %r2,-ENOSYS - je 1f -#endif - l %r15,0(%r15) /* Load back chain. */ cfi_adjust_cfa_offset (-120) lm %r6,%r15,24(%r15) /* Load registers. */ @@ -78,31 +72,6 @@ ENTRY(__mmap64) /* Successful; return the syscall's value. */ br %r14 -#endif - -#if !defined __ASSUME_MMAP2_SYSCALL || !defined __NR_mmap2 -1: lm %r0,%r1,216(%r15) /* Load 64 bit offset. */ - st %r1,0x74(%r15) /* Store lower word of offset. */ - ltr %r0,%r0 /* Offset > 2^32 ? */ - jnz 2f - alr %r1,%r3 /* Add length to offset. */ - brc 3,2f /* Carry -> EINVAL. */ - - la %r2,0x60(%r15) /* Load address of parameter list. */ - svc SYS_ify(mmap) /* Do the system call trap. */ - - l %r15,0(%r15) /* Load back chain. */ - lm %r6,%r15,24(%r15) /* Load registers. */ - - /* Check gpr 2 for error. */ - lhi %r0,-4096 - clr %r2,%r0 - jnl SYSCALL_ERROR_LABEL - - /* Successful; return the syscall's value. */ - br %r14 -#endif - 2: lhi %r2,-EINVAL l %r15,0(%r15) /* Load back chain. */ lm %r6,%r15,24(%r15) /* Load registers. */ |