Differential D21946 Diff 63050 devel/gdb/files/kgdb/kgdb-main.c

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devel/gdb/files/kgdb/kgdb-main.c

Show First 20 Lines • Show All 377 Lines • ▼ Show 20 Lines	main(int argc, char *argv[])
/* Set an alternate prompt. */		/* Set an alternate prompt. */
add_arg(&args, "-iex");		add_arg(&args, "-iex");
add_arg(&args, "set prompt (kgdb) ");		add_arg(&args, "set prompt (kgdb) ");

/* Change osabi to assume a FreeBSD kernel. */		/* Change osabi to assume a FreeBSD kernel. */
add_arg(&args, "-iex");		add_arg(&args, "-iex");
add_arg(&args, "set osabi FreeBSD/kernel");		add_arg(&args, "set osabi FreeBSD/kernel");

		/*
		* PowerPC kernels are fully relocatable and may be loaded
		* at any memory address. In order to resolve symbols properly,
		* GDB must load the kernel symbol file relative to the base
		* offset where the it was loaded in memory.
		*/
		#ifdef __powerpc__
		{
		unsigned long long offs;

		unsigned long long ppcfbsd_get_startkernel(
		const char , const char );

		offs = ppcfbsd_get_startkernel(kernel, vmcore);

		/* Set executable file but don't load it yet. */
		add_arg(&args, "-e");
		add_arg(&args, kernel);

		add_arg(&args, "-ex");
		add_arg(&args, "set confirm off");

		/* Load symbols at proper offsets. */
		add_arg(&args, "-ex");
		asprintf(&s, "symbol-file -o 0x%llx %s", offs, kernel);
		add_arg(&args, s);

		add_arg(&args, "-ex");
		add_arg(&args, "set confirm on");
		}
		#endif

/* Open the vmcore if requested. */		/* Open the vmcore if requested. */
if (vmcore != NULL) {		if (vmcore != NULL) {
add_arg(&args, "-ex");		add_arg(&args, "-ex");
if (asprintf(&s, "target vmcore %s%s", writeable ? "-w " : "",		if (asprintf(&s, "target vmcore %s%s", writeable ? "-w " : "",
vmcore) < 0)		vmcore) < 0)
err(1, "couldn't build command line");		err(1, "couldn't build command line");
add_arg(&args, s);		add_arg(&args, s);
}		}

/* Open the remote target if requested. */		/* Open the remote target if requested. */
if (remote != NULL) {		if (remote != NULL) {
add_arg(&args, "-ex");		add_arg(&args, "-ex");
if (asprintf(&s, "target remote %s", remote) < 0)		if (asprintf(&s, "target remote %s", remote) < 0)
err(1, "couldn't build command line");		err(1, "couldn't build command line");
add_arg(&args, s);		add_arg(&args, s);
}		}

		/* Avoid loading symbols twice on PowerPC. */
		#ifndef __powerpc__
add_arg(&args, kernel);		add_arg(&args, kernel);
		#endif

/* The libgdb code uses optind too. Reset it... */		/* The libgdb code uses optind too. Reset it... */
optind = 0;		optind = 0;

/* Terminate argv list. */		/* Terminate argv list. */
add_arg(&args, NULL);		add_arg(&args, NULL);

return (gdb_main(&args));		return (gdb_main(&args));
}		}