From 29b3c4f2ad92ac2f4176b3cff5c33ef24d82aac1 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sun, 2 Jan 2000 20:27:46 +0000 Subject: Update. * sysdeps/unix/sysv/linux/i386/mmap64.S: Handle unaligned offsets. * sysdeps/unix/sysv/linux/i386/mmap.S: Likewise. --- sysdeps/unix/sysv/linux/i386/mmap.S | 11 +++++++---- sysdeps/unix/sysv/linux/i386/mmap64.S | 8 +++++--- 2 files changed, 12 insertions(+), 7 deletions(-) (limited to 'sysdeps/unix/sysv') diff --git a/sysdeps/unix/sysv/linux/i386/mmap.S b/sysdeps/unix/sysv/linux/i386/mmap.S index 0397f841f1..46d26125a5 100644 --- a/sysdeps/unix/sysv/linux/i386/mmap.S +++ b/sysdeps/unix/sysv/linux/i386/mmap.S @@ -1,4 +1,4 @@ -/* Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc. +/* Copyright (C) 1995, 96, 97, 98, 99, 2000 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -36,19 +36,22 @@ ENTRY (__mmap) pushl %esi pushl %edi - movl $SYS_ify(mmap2), %eax /* System call number in %eax. */ - movl 20(%esp), %ebx movl 24(%esp), %ecx movl 28(%esp), %edx movl 32(%esp), %esi movl 36(%esp), %edi movl 40(%esp), %ebp + testl $0x3ff, %ebp + movl $-EINVAL, %eax + jne L(skip) shrl $12, %ebp /* mmap2 takes the offset in pages. */ + movl $SYS_ify(mmap2), %eax /* System call number in %eax. */ + /* Do the system call trap. */ int $0x80 - +L(skip): /* Restore registers. */ popl %edi popl %esi diff --git a/sysdeps/unix/sysv/linux/i386/mmap64.S b/sysdeps/unix/sysv/linux/i386/mmap64.S index 4a30185f25..346bb52b5f 100644 --- a/sysdeps/unix/sysv/linux/i386/mmap64.S +++ b/sysdeps/unix/sysv/linux/i386/mmap64.S @@ -1,4 +1,4 @@ -/* Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc. +/* Copyright (C) 1995, 96, 97, 98, 99, 2000 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -35,10 +35,10 @@ ENTRY (__mmap64) pushl %esi pushl %edi - movl $SYS_ify(mmap2), %eax /* System call number in %eax. */ - movl 40(%esp), %edx movl 44(%esp), %ecx + testl $0x3ff, %edx + jne L(einval) shrdl $12, %ecx, %edx /* mmap2 takes the offset in pages. */ shrl $12, %ecx jne L(einval) @@ -50,6 +50,8 @@ ENTRY (__mmap64) movl 32(%esp), %esi movl 36(%esp), %edi + movl $SYS_ify(mmap2), %eax /* System call number in %eax. */ + /* Do the system call trap. */ L(do_syscall): int $0x80 -- cgit 1.4.1