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authorUlrich Drepper <drepper@redhat.com>2001-04-09 04:55:59 +0000
committerUlrich Drepper <drepper@redhat.com>2001-04-09 04:55:59 +0000
commiteacde9d0818dac743bc5c2562e35f0a6e949327e (patch)
treed117012b09ea03667334e4fb4be8ab15c41509d5 /sysdeps/unix/sysv/linux/cris/mmap64.S
parent4c4505561671f07c4f1b9e39cc0a0fa271a6c8be (diff)
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Update.
2001-04-08 Hans-Peter Nilsson <hp@axis.com> * sysdeps/unix/sysv/linux/cris/Dist: New file. * sysdeps/unix/sysv/linux/cris/Makefile: New file. * sysdeps/unix/sysv/linux/cris/_G_config.h: New file. * sysdeps/unix/sysv/linux/cris/bits/fcntl.h: New file. * sysdeps/unix/sysv/linux/cris/bits/mman.h: New file. * sysdeps/unix/sysv/linux/cris/bits/resource.h: New file. * sysdeps/unix/sysv/linux/cris/brk.c: New file. * sysdeps/unix/sysv/linux/cris/chown.c: New file. * sysdeps/unix/sysv/linux/cris/clone.S: New file. * sysdeps/unix/sysv/linux/cris/fchown.c: New file. * sysdeps/unix/sysv/linux/cris/fcntl.c: New file. * sysdeps/unix/sysv/linux/cris/fxstat.c: New file. * sysdeps/unix/sysv/linux/cris/getegid.c: New file. * sysdeps/unix/sysv/linux/cris/geteuid.c: New file. * sysdeps/unix/sysv/linux/cris/getgid.c: New file. * sysdeps/unix/sysv/linux/cris/getgroups.c: New file. * sysdeps/unix/sysv/linux/cris/getresgid.c: New file. * sysdeps/unix/sysv/linux/cris/getresuid.c: New file. * sysdeps/unix/sysv/linux/cris/getrlimit.c: New file. * sysdeps/unix/sysv/linux/cris/getrlimit64.c: New file. * sysdeps/unix/sysv/linux/cris/getuid.c: New file. * sysdeps/unix/sysv/linux/cris/lchown.c: New file. * sysdeps/unix/sysv/linux/cris/lockf64.c: New file. * sysdeps/unix/sysv/linux/cris/lxstat.c: New file. * sysdeps/unix/sysv/linux/cris/mmap.S: New file. * sysdeps/unix/sysv/linux/cris/mmap64.S: New file. * sysdeps/unix/sysv/linux/cris/msgctl.c: New file. * sysdeps/unix/sysv/linux/cris/profil-counter.h: New file. * sysdeps/unix/sysv/linux/cris/register-dump.h: New file. * sysdeps/unix/sysv/linux/cris/semctl.c: New file. * sysdeps/unix/sysv/linux/cris/setegid.c: New file. * sysdeps/unix/sysv/linux/cris/seteuid.c: New file. * sysdeps/unix/sysv/linux/cris/setfsgid.c: New file. * sysdeps/unix/sysv/linux/cris/setfsuid.c: New file. * sysdeps/unix/sysv/linux/cris/setgid.c: New file. * sysdeps/unix/sysv/linux/cris/setgroups.c: New file. * sysdeps/unix/sysv/linux/cris/setregid.c: New file. * sysdeps/unix/sysv/linux/cris/setresgid.c: New file. * sysdeps/unix/sysv/linux/cris/setresuid.c: New file. * sysdeps/unix/sysv/linux/cris/setreuid.c: New file. * sysdeps/unix/sysv/linux/cris/setrlimit.c: New file. * sysdeps/unix/sysv/linux/cris/setuid.c: New file. * sysdeps/unix/sysv/linux/cris/shmctl.c: New file. * sysdeps/unix/sysv/linux/cris/socket.S: New file. * sysdeps/unix/sysv/linux/cris/sys/ucontext.h: New file. * sysdeps/unix/sysv/linux/cris/syscall.S: New file. * sysdeps/unix/sysv/linux/cris/sysdep.S: New file. * sysdeps/unix/sysv/linux/cris/sysdep.h: New file. * sysdeps/unix/sysv/linux/cris/vfork.S: New file. * sysdeps/unix/sysv/linux/cris/xstat.c: New file. 2001-04-08 Hans-Peter Nilsson <hp@axis.com> * sysdeps/cris/Dist: New file. * sysdeps/cris/Implies: New file. * sysdeps/cris/Makefile: New file. * sysdeps/cris/__longjmp.S: New file. * sysdeps/cris/_mcount.S: New file. * sysdeps/cris/bits/endian.h: New file. * sysdeps/cris/bits/setjmp.h: New file. * sysdeps/cris/bits/string.h: New file. * sysdeps/cris/dl-machine.h: New file. * sysdeps/cris/elf/start.S: New file. * sysdeps/cris/machine-gmon.h: New file. * sysdeps/cris/memcopy.h: New file. * sysdeps/cris/memusage.h: New file. * sysdeps/cris/setjmp.S: New file. * sysdeps/cris/sysdep.h: New file. * sysdeps/cris/wordcopy.c: New file. 2001-04-08 Hans-Peter Nilsson <hp@axis.com> * elf/elf.h: Add new relocations for CRIS. 2001-04-08 Hans-Peter Nilsson <hp@axis.com> * shlib-versions: Add cases for Linux on CRIS. 2001-04-08 Hans-Peter Nilsson <hp@axis.com> * configure.in (ASM_LINE_SEP tests): Handle CRIS assembly, with ';' for comments and '@' for line separator. 2001-04-08 Hans-Peter Nilsson <hp@axis.com> * sysdeps/unix/sysv/linux/hppa/sysdep.h (INLINE_SYSCALL): Fix typo; s/==/=/ for assignment. 2001-04-08 Hans-Peter Nilsson <hp@axis.com> * malloc/Makefile: Correct comment; mtrace is Perl, not AWK. 2001-04-08 Hans-Peter Nilsson <hp@axis.com> * iconv/gconv_simple.c (internal_ucs4_loop_unaligned): Check for empty input before checking full output. 2001-04-08 Hans-Peter Nilsson <hp@axis.com> * iconv/gconv.c (__gconv): Don't derefer parameter cd before checking if == -1L. 2001-04-08 Ulrich Drepper <drepper@redhat.com> * inet/rexec.c (rexec_af): Avoid calling perror with errno being set.
Diffstat (limited to 'sysdeps/unix/sysv/linux/cris/mmap64.S')
-rw-r--r--sysdeps/unix/sysv/linux/cris/mmap64.S91
1 files changed, 91 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/cris/mmap64.S b/sysdeps/unix/sysv/linux/cris/mmap64.S
new file mode 100644
index 0000000000..acf6ca33bf
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/cris/mmap64.S
@@ -0,0 +1,91 @@
+/* Copyright (C) 2001 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
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <sysdep.h>
+
+#include "kernel-features.h"
+
+#include <asm/errno.h>
+
+/* Rather than dragging in yet another kernel file, <asm/page.h>, we
+ define it here. Provide for easy override. */
+#ifndef PAGE_SHIFT
+#define PAGE_SHIFT 13
+#endif
+
+/* This is: __ptr_t
+ __mmap64 (__ptr_t addr, size_t len, int prot, int flags, int fd,
+ off64_t offset); */
+
+/* This was done in C, but the resulting code didn't look anywhere near
+ nice, and mmap64 is important enough to have fast code. Rather than
+ fixing (the generic bits in) gcc, we make sure not to depend on it by
+ writing code that GCC cannot reasonably generate. */
+
+ .syntax no_register_prefix
+
+ENTRY (__mmap64)
+
+ move [sp],mof
+ move.d [sp+4],r9
+
+ /* Only accept an offset being a multiple of PAGE_SIZE, ditto address. */
+ btstq (PAGE_SHIFT - 1),r9
+ bne 1f
+ lsrq PAGE_SHIFT,r9
+
+ btstq (PAGE_SHIFT - 1),r10
+ bne 1f
+ move.d r9,[sp]
+
+ /* We have to store the adjusted part somewhere we can "or" from.
+ No registers available, so let's re-use the incoming low-part
+ parameter location. */
+ move.d [sp+8],r9
+
+ swapwbr r9
+ /* Check if the highest bits (now the lowest bits) are zero. They
+ must be, since we're actually calling a system function
+ specifying the size in *pages* in a single dword. Thus you can
+ mmap64 PAGE_SIZE * 4 Gbyte. */
+ btstq (PAGE_SHIFT - 1),r9
+ bne 1f
+ swapwbr r9
+
+ lslq (32 - PAGE_SHIFT),r9
+ or.d [sp],r9
+ move srp,[sp]
+ move r9,srp
+
+ movu.b SYS_ify (mmap2),r9
+ break 13
+
+ cmps.w -4096,r10
+ bhs 0f
+ move [sp],srp
+
+ Ret
+ nop
+
+/* Local error handler. */
+1:
+ movs.w -EINVAL,r10
+ /* Drop through into the ordinary error handler. */
+PSEUDO_END (__mmap64)
+
+weak_alias (__mmap64, mmap64)