libc/libgloss/m68k/sim-sbrk.c
Jeff Johnston 09ccfcee50 2001-02-28 Will Cohen <wcohen@redhat.com>
* src/libgloss/m68k/Makefile.in: Updated copyright and
         added rules to build simulator related libraries.
        (SIM_SCRIPTS): New variable.
        (SIM_LDFLAGS): New variable.
        (SIM_BSP): New variable.
        (SIM_CRT0): New variable.
        (SIM_OBJS): New variable.
        (SIM_TEST): New variable.
        (SIM_INSTALL): new variable.
        * src/libgloss/m68k/sim-abort.c: New file.
        * src/libgloss/m68k/sim-crt0.S: New file.
        * src/libgloss/m68k/sim-errno.c: New file.
        * src/libgloss/m68k/sim-funcs.c: New file.
        * src/libgloss/m68k/sim-inbyte.c: New file.
        * src/libgloss/m68k/sim-print.c: New file.
        * src/libgloss/m68k/sim-sbrk.c: New file.
        * src/libgloss/m68k/sim.ld: New file.
        * src/libgloss/m68k/simulator.S: New file.
2001-02-28 18:41:57 +00:00

31 lines
930 B
C

/*
* sim-sbrk.c -- m68k sbrk support when running under the simulator.
*
* Copyright (c) 1995, 2001 Cygnus Support
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
extern char _end[];
static char *curbrk = _end;
char *
sbrk (incr)
int incr;
{
char *oldbrk = curbrk;
curbrk += incr;
if (brk (curbrk) == -1)
return (char *) -1;
return oldbrk;
}