Date: Wed, 16 Jan 2013 08:35:51 -0700 From: Warner Losh <imp@bsdimp.com> To: Adrian Chadd <adrian@FreeBSD.org> Cc: freebsd-hackers@freebsd.org, freebsd-current <freebsd-current@freebsd.org> Subject: Re: [RFC] support -b <baudrate> when starting gdb Message-ID: <89207049-41FF-479D-90EE-89652937AB29@bsdimp.com> In-Reply-To: <CAJ-Vmo=egCndUfHoQVS3Sy8rd0QOEm96mJ1Vv3K%2BrRuJcUpp9Q@mail.gmail.com> References: <CAJ-Vmo=egCndUfHoQVS3Sy8rd0QOEm96mJ1Vv3K%2BrRuJcUpp9Q@mail.gmail.com>
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How does 'set remotebaud' not do what you want?
Warner
On Jan 15, 2013, at 10:15 PM, Adrian Chadd wrote:
> Hi,
>=20
> There doesn't seem to be a blessed way to set the baudrate from inside
> gdb/kgdb. It seems to be set from '-b' on the command line.
>=20
> However kgdb doesn't have this support.
>=20
> This patch adds -b support so kgdb so I can override the default speed
> (9600 it seems) to speak kgdb over serial to a 115200 console MIPS
> device.
>=20
> The MIPS stuff has other issues; I'll talk about those later.
>=20
> Thanks,
>=20
>=20
>=20
> Adrian
>=20
>=20
> Index: gnu/usr.bin/gdb/kgdb/main.c
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> --- gnu/usr.bin/gdb/kgdb/main.c (revision 245281)
> +++ gnu/usr.bin/gdb/kgdb/main.c (working copy)
> @@ -333,11 +333,24 @@
> args.argv =3D malloc(sizeof(char *));
> args.argv[0] =3D argv[0];
>=20
> - while ((ch =3D getopt(argc, argv, "ac:d:fn:qr:vw")) !=3D -1) {
> + while ((ch =3D getopt(argc, argv, "ab:c:d:fn:qr:vw")) !=3D -1) =
{
> switch (ch) {
> case 'a':
> annotation_level++;
> break;
> + case 'b':
> + {
> + int i;
> + char *p;
> +
> + i =3D strtol (optarg, &p, 0);
> + if (i =3D=3D 0 && p =3D=3D optarg)
> + warnx("warning: could not set baud
> rate to `%s'.\n",
> + optarg);
> + else
> + baud_rate =3D i;
> + }
> + break;
> case 'c': /* use given core file. */
> if (vmcore !=3D NULL) {
> warnx("option %c: can only be specified =
once",
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