NetBSD 9.2 Alpha: gdb failure

["Nelson H. F. Beebe" <beebe%math.utah.edu@localhost>]

In attempting to debug the data conversion and floating-point issues
that I reported on this list yesterday, I found that gdb is unusable,
even for a trivial program that just prints a greeting:

	% cat hello.c
	#include <stdio.h>

	int
	main(void)
	{
	    printf("hello, world\n");
	    return 0;
	}

	% cc -g -g3 hello.c

	% gdb a.out
	GNU gdb (GDB) 11.0.50.20200914-git
	...
	(gdb) b main
	Breakpoint 1 at 0x1200008c8: file /u/sy/beebe/c/hello.c, line 6.
	(gdb) run
	Starting program: /local/build/cc/fx-0.0.40/a.out 
	limit: stacksize: Can't set limit (Operation not permitted)
	terminate called without an active exception
	[ 176884.2498815] sorry, pid 12842 was killed: orphaned traced process
	Abort (core dumped)

My QEMU hardware configuration is:

	% sysctl -a | grep ncpu
	hw.ncpu = 2
	hw.ncpuonline = 2

	% sysctl -a | grep hw.phy
	hw.physmem = -122880
	hw.physmem64 = 4294844416

That is, 2 CPUs and 4GB DRAM.

	% limit stacksize
	stacksize    28672 kbytes

Even as root, I cannot increase the stacksize, and a hello-world
program needs only a few bytes on the stack.

On Debian 11 Linux with gdb 10.1.90, I can successfully single step
programs, set breakpoints, and examine variables.

Is gdb known to work on NetBSD 9.2 on a real physical Alpha system?

-------------------------------------------------------------------------------
- Nelson H. F. Beebe                    Tel: +1 801 581 5254                  -
- University of Utah                    FAX: +1 801 581 4148                  -
- Department of Mathematics, 110 LCB    Internet e-mail: beebe%math.utah.edu@localhost  -
- 155 S 1400 E RM 233                       beebe%acm.org@localhost  beebe%computer.org@localhost -
- Salt Lake City, UT 84112-0090, USA    URL: http://www.math.utah.edu/~beebe/ -
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