2014-03-21 Sabrini Ni <sabrinanitw@gmail.com>

* nds32/Makefile.in: Add syscall_error_handler.o.
        * nds32/syscall_error_handler.S: New.
        * nds32/syscall_extra.h: Reduce code size.
This commit is contained in:
Jeff Johnston 2014-03-21 20:20:53 +00:00
parent 9246fbeced
commit 7f4230bdc8
4 changed files with 57 additions and 9 deletions

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@ -1,3 +1,9 @@
2014-03-21 Sabrini Ni <sabrinanitw@gmail.com>
* nds32/Makefile.in: Add syscall_error_handler.o.
* nds32/syscall_error_handler.S: New.
* nds32/syscall_extra.h: Reduce code size.
2014-03-21 Sabrini Ni <sabrinanitw@gmail.com>
* nds32/syscall_extra.h: Define macro.

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@ -72,7 +72,7 @@ SYSCALLS1 = syscall_exit.o syscall_open.o syscall_close.o syscall_read.o syscall
SYSCALLS2 = syscall_lseek.o syscall_unlink.o syscall_getpid.o syscall_kill.o syscall_fstat.o
SYSCALLS3 = syscall_argvlen.o syscall_argv.o syscall_chdir.o syscall_stat.o syscall_chmod.o
SYSCALLS4 = syscall_utime.o syscall_time.o syscall_gettimeofday.o syscall_times.o syscall_link.o
SYSCALLS5 = syscall_rename.o syscall_isatty.o syscall_system.o syscall_sbrk.o
SYSCALLS5 = syscall_rename.o syscall_isatty.o syscall_system.o syscall_sbrk.o syscall_error_handler.o
SYSCALLS = $(SYSCALLS1) $(SYSCALLS2) $(SYSCALLS3) $(SYSCALLS4) $(SYSCALLS5)
GENERIC_LIBOBJS =

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@ -0,0 +1,48 @@
/*
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
.text
.global __syscall_error_handler
.type __syscall_error_handler, @function
.hidden __syscall_error_handler
.align 2
__syscall_error_handler:
addi $r1, $r0, 1
bnez $r1, 1f /* Branch if success. */
syscall SYS_geterr /* There is something wrong. */
s.w $r0, errno /* Store error code into errno. */
move $r0, -1
1:
ret
.size __syscall_error_handler, .-__syscall_error_handler

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@ -51,14 +51,8 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
If there is something wrong, make syscall to get `SYS_geterr' to get
error code to see what exactly happens and store it in errno . */
syscall \num /* Make syscall with arg=`\num'. */
addi $r1, $r0, 1
bnez $r1, 1f /* Branch if success. */
syscall SYS_geterr /* There is something wrong. */
s.w $r0, errno /* Store error code into errno. */
move $r0, -1
1:
ret
.size \name, .-\name
j __syscall_error_handler
.size \name, .-\name
.endm
#endif /* _SYSCALL_EXTRA_H */