diff --git a/src/sys/kernel/Makefile b/src/sys/kernel/Makefile index fe4bd12..7ae9f6b 100644 --- a/src/sys/kernel/Makefile +++ b/src/sys/kernel/Makefile @@ -6,7 +6,7 @@ include ../Makefile.inc # Objects -OBJS = endtask.o spinlock.o bioscall.o ld.o time.o fork.o syscall.o elf.o file.o systemtask.o exec.o sched.o kpanic.o vitals.o ubthread.o timer.o +OBJS = sys_call.o endtask.o spinlock.o bioscall.o ld.o time.o fork.o syscall.o elf.o file.o systemtask.o exec.o sched.o kpanic.o vitals.o ubthread.o timer.o # ap-boot.o smp.o all: $(OBJS) diff --git a/src/sys/kernel/sys_call.S b/src/sys/kernel/sys_call.S new file mode 100644 index 0000000..bfe27a1 --- /dev/null +++ b/src/sys/kernel/sys_call.S @@ -0,0 +1,53 @@ +/***************************************************************************************** + Copyright (c) 2002-2004 The UbixOS Project + 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, the following disclaimer and the list of authors. Redistributions in binary + form must reproduce the above copyright notice, this list of conditions, the following + disclaimer and the list of authors in the documentation and/or other materials provided + with the distribution. Neither the name of the UbixOS Project nor the names of its + contributors may 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 + THE COPYRIGHT OWNER OR CONTRIBUTORS 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. + + $Id$ + +*****************************************************************************************/ + +.globl _sysCall +.text +.code32 +_sysCall: + cmpl totalCalls,%eax + jae invalidSysCall + pushl %edx + pushl %ecx + pushl %ebx + call *systemCalls(,%eax,4) + jmp done +invalidSysCall: + call invalidCall +done: + popl %ebx + popl %ecx + popl %edx + iret + +/*** + $Log$ + END + ***/ + diff --git a/src/sys/kernel/syscall.c b/src/sys/kernel/syscall.c index b8d3eac..11ed88c 100644 --- a/src/sys/kernel/syscall.c +++ b/src/sys/kernel/syscall.c @@ -64,25 +64,6 @@ " iret \n" ); -asm( - ".globl _sysCall \n" - "_sysCall: \n" - " cmpl totalCalls,%eax \n" - " jae invalidSysCall \n" - " pushl %edx \n" - " pushl %ecx \n" - " pushl %ebx \n" - " call *systemCalls(,%eax,4) \n" - " jmp done \n" - "invalidSysCall: \n" - " call invalidCall \n" - "done: \n" - " popl %ebx \n" - " popl %ecx \n" - " popl %edx \n" - " iret \n" /* Exit interrupt */ - ); - void invalidCall() { kprintf("Invalid Sys Call!\n"); }