diff options
author | Jeff Johnston <jjohnstn@redhat.com> | 2013-07-09 23:16:25 +0400 |
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committer | Jeff Johnston <jjohnstn@redhat.com> | 2013-07-09 23:16:25 +0400 |
commit | bdf683b1c8eb8ad1ec99afb507c4bf9209a808aa (patch) | |
tree | 49c42b6eb107a277b369970a96fb6cbda0c2887b /libgloss/nds32/syscall_chdir.S | |
parent | dc0cb474bba11051859968574d344cccf3fdb0d7 (diff) |
2013-07-09 Sabrina Ni <sabrina@andestech.com>
* configure.in: Add nds32 subdir.
* configure: Regenerated.
* nds32/configure.in: New.
* nds32/configure: New (autogenerated).
* nds32/{crt0.S,crt1.S}: New.
* nds32/Makefile.in: New.
* nds32/{syscall_argvlen.S,syscall_argv.S,
syscall_chdirS, syscall_chmod.S,
syscall_close.S,syscall_exit.S,syscall_extra.h, syscall_fstat.S,
syscall_getpid.S,syscall_gettimeofday.S,syscall_isatty.S,syscall_kill.S,
syscall_link.S,syscall_lseek.S,syscall_open.S,syscall_read.S,
syscall_rename.S,syscall_sbrk.S,syscall_stat.S,syscall_system.S,
syscall_time.S,syscall_times.S,syscall_unlink.S,syscall_utime.S,
syscall_write.S}: New.
Diffstat (limited to 'libgloss/nds32/syscall_chdir.S')
-rw-r--r-- | libgloss/nds32/syscall_chdir.S | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/libgloss/nds32/syscall_chdir.S b/libgloss/nds32/syscall_chdir.S new file mode 100644 index 000000000..5309e2b9b --- /dev/null +++ b/libgloss/nds32/syscall_chdir.S @@ -0,0 +1,53 @@ +/* +Copyright (c) 2013 Andes Technology Corporation. +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + + Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + The name of the company may not be used to endorse or promote + products derived from this software without specific prior written + permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ +#include "../syscall.h" +#include "syscall_extra.h" + + + .extern errno + + .section .text + .global _chdir + .type _chdir, @function + .align 2 +_chdir: + /* Make syscall 'SYS_chdir'. + Reture value '-1' stored in $r0 means there is something wrong. + If there is something wrong, make syscall 'SYS_geterr' to get + error code to see what exactly happens and store it in errno . */ + syscall SYS_chdir + addi $r1, $r0, 1 + bnez $r1, .Ldone + syscall SYS_geterr + s.w $r0, errno + movi $r0, -1 +.Ldone: + ret + .size _chdir, .-_chdir |