diff options
| author | luoqi <luoqi@FreeBSD.org> | 1998-09-24 01:11:45 +0000 |
|---|---|---|
| committer | luoqi <luoqi@FreeBSD.org> | 1998-09-24 01:11:45 +0000 |
| commit | 1e573349aa92ca5d53bb58f7463678e2ec7cfbe1 (patch) | |
| tree | 26afea8f219ccd1d8927bc3da4d2fe813aa22f88 /usr.bin/doscmd/xms.c | |
| parent | c51ade1afecd96fa41382fce71c9447db8ce023e (diff) | |
| download | FreeBSD-src-1e573349aa92ca5d53bb58f7463678e2ec7cfbe1.zip FreeBSD-src-1e573349aa92ca5d53bb58f7463678e2ec7cfbe1.tar.gz | |
ELFize. In fact, doscmd is ELF natural -- there is no need for a loader
since ELF executables are loaded well above the low memory region that
DOS operates in.
Diffstat (limited to 'usr.bin/doscmd/xms.c')
| -rw-r--r-- | usr.bin/doscmd/xms.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/usr.bin/doscmd/xms.c b/usr.bin/doscmd/xms.c index 81ba91b..b016a0a 100644 --- a/usr.bin/doscmd/xms.c +++ b/usr.bin/doscmd/xms.c @@ -25,7 +25,7 @@ * (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: xms.c,v 1.2 1997/08/15 23:41:25 jlemon Exp $ + * $Id: xms.c,v 1.3 1997/09/30 22:04:06 jlemon Exp $ */ /* @@ -70,7 +70,7 @@ static short HMA_a20 = -1; static int HMA_fd_off, HMA_fd_on; /* high memory mapfiles */ -static char *memfile = "/tmp/doscmd.XXXXXX"; +static char memfile[] = "/tmp/doscmd.XXXXXX"; /* Upper memory block (UMB) management */ UMB_block *UMB_freelist = NULL; @@ -358,6 +358,16 @@ void initHMA() lseek(HMA_fd_on, 64 * 1024 - 1, 0); write(HMA_fd_on, "", 1); + if (mmap((caddr_t)0x000000, 0x100000, + PROT_EXEC | PROT_READ | PROT_WRITE, + MAP_ANON | MAP_FIXED | MAP_INHERIT | MAP_SHARED, + -1, 0) < 0) { + perror("Error mapping HMA, HMA disabled: "); + HMA_a20 = -1; + close(HMA_fd_off); + close(HMA_fd_on); + return; + } if (mmap((caddr_t)0x000000, 64 * 1024, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_FILE | MAP_FIXED | MAP_INHERIT | MAP_SHARED, |
