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authorStu Grossman <grossman@cygnus>1993-04-08 04:12:56 +0000
committerStu Grossman <grossman@cygnus>1993-04-08 04:12:56 +0000
commitb83bf6b37085a25d519665d3093f7925ef99cbc7 (patch)
tree54e856dca5ebc6dd538d42081e3e6fcac5ec0369 /gdb/ser-go32.c
parent0742a6fded3e758672537a4a422e292abc9630ad (diff)
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* ser-go32.c: Make it use serial port name.
* go32-xdep.c: Put in def for strlwr, needed by dir.o in go32 libc.
Diffstat (limited to 'gdb/ser-go32.c')
-rw-r--r--gdb/ser-go32.c78
1 files changed, 54 insertions, 24 deletions
diff --git a/gdb/ser-go32.c b/gdb/ser-go32.c
index edfe4b4..844f861 100644
--- a/gdb/ser-go32.c
+++ b/gdb/ser-go32.c
@@ -49,7 +49,26 @@ static int iov;
#define com_lsr iov+5
#define com_msr iov+6
-static int fd;
+static int
+strncasecmp(str1, str2, len)
+ char *str1, *str2;
+ register int len;
+{
+ unsigned char c1, c2;
+
+ for (; len != 0; --len)
+ {
+ c1 = *str1++;
+ c2 = *str2++;
+
+ if (toupper(c1) != toupper(c2))
+ return toupper(c1) - toupper(c2);
+
+ if (c1 == '\0')
+ return 0;
+ }
+ return 0;
+}
static char *
aptr(p)
@@ -65,39 +84,37 @@ getivec(int which)
if (peek(0, which*4) != OFFSET)
return 0;
+
a = (ASYNC_STRUCT *)(0xe0000000 + peek(0, which*4+2)*16 + peek(0, which*4));
if (a->signature != SIGNATURE)
return 0;
+
if (a->version != VERSION)
return 0;
+
return a;
}
static int
-dos_async_init()
+dos_async_init(port)
+ int port;
{
int i;
- ASYNC_STRUCT *a1;
- ASYNC_STRUCT *a2;
-
- a1 = getivec(12);
- a2 = getivec(11);
- async = 0;
- if (a1)
- async = a1;
- if (a2)
- async = a2;
-
- if (a1 && a2)
+
+ switch (port)
{
- if (a1 < a2)
- async = a1;
- else
- async = a2;
+ case 1:
+ async = getivec (12);
+ break;
+ case 2:
+ async = getivec (11);
+ break;
+ default:
+ return 0;
}
- if (async == 0)
+ if (!async)
{
error("GDB can not connect to asynctsr program, check that it is installed\n\
and that serial I/O is not being redirected (perhaps by NFS)\n\n\
@@ -114,10 +131,7 @@ C> gdb \n");
outportb(com_mcr, 0x0b);
async->getp = async->putp = async->buffer_start;
- if (iov > 0x300)
- return 1;
- else
- return 2;
+ return 1;
}
static void
@@ -203,7 +217,23 @@ go32_open (scb, name)
serial_t scb;
const char *name;
{
- scb->fd = dos_async_init();
+ int port;
+
+ if (strncasecmp (name, "com", 3) != 0)
+ {
+ errno = ENOENT;
+ return 1;
+ }
+
+ port = name[3] - '0';
+
+ if ((port != 1) && (port != 2))
+ {
+ errno = ENOENT;
+ return 1;
+ }
+
+ scb->fd = dos_async_init(port);
if (!scb->fd)
return 1;