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Diffstat (limited to 'libgloss/rx/rxsys.h')
-rw-r--r-- | libgloss/rx/rxsys.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/libgloss/rx/rxsys.h b/libgloss/rx/rxsys.h new file mode 100644 index 000000000..39c5373ec --- /dev/null +++ b/libgloss/rx/rxsys.h @@ -0,0 +1,60 @@ +/* + +Copyright (c) 2005, 2009 Red Hat Incorporated. +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 Red Hat Incorporated 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" + + /* This mixture of C pre-processor macros and assembler + macros is to get around the fact that the RX assembler + does not support a line separator character. */ + +#define SYS__exit SYS_exit + + .macro syscall_body number + /* We use interrupt 255 as a system call, + with the call number in r5. */ + mov # \number, r5 + int # 255 + rts + .endm + + + .macro do_syscall name number +__\name: + .global __\name +_\name: + .weak _\name + syscall_body \number + .endm + + +#define S(name) do_syscall name SYS_##name +#define SYSCALL(number) syscall_body number |