diff options
Diffstat (limited to 'gdb/ser-go32.c')
| -rw-r--r-- | gdb/ser-go32.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/gdb/ser-go32.c b/gdb/ser-go32.c index e2b3a935277..edfe4b44ee3 100644 --- a/gdb/ser-go32.c +++ b/gdb/ser-go32.c @@ -80,6 +80,7 @@ dos_async_init() int i; ASYNC_STRUCT *a1; ASYNC_STRUCT *a2; + a1 = getivec(12); a2 = getivec(11); async = 0; @@ -87,23 +88,26 @@ dos_async_init() async = a1; if (a2) async = a2; + if (a1 && a2) - { - if (a1 < a2) - async = a1; - else - async = a2; - } + { + if (a1 < a2) + async = a1; + else + async = a2; + } + if (async == 0) - { - error("GDB can not connect to asynctsr program, check that it is installed\n\ + { + 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\ example configuration:\n\ C> mode com2:9600,n,8,1,p\n\ C> asynctsr 2\n\ C> gdb \n"); - } + } + iov = async->iov; outportb(com_ier, 0x0f); outportb(com_bfr, 0x03); @@ -200,7 +204,7 @@ go32_open (scb, name) const char *name; { scb->fd = dos_async_init(); - if (scb->fd) + if (!scb->fd) return 1; return 0; |