Re: [RFC] XFAIL bigcore.exp on some GNU/Linux targets

[Andrew Cagney <cagney@gnu.org>]

Why not ask the program the heap size?  it's in total_allocated, just 
make that a static.

> +# Traverse part of bigcore's linked list of memory chunks, finding the total
> +# size.  Note that we use GDB to do the math; TCL is not reliable with
> +# extremely large integers.
> +
> +proc heap_size { } {
> +    global gdb_prompt
> +    global expect_out
> +    set test "find heap size"
> +    set lim 0
> +    gdb_test "set \$size = 0" ""
> +    gdb_test_multiple "print heap.next" "$test" {
> +	-re " = \\(struct list \\*\\) 0x0.*$gdb_prompt $" {
> +	    pass "$test"
> +	}
> +	-re " = \\(struct list \\*\\) (0x\[0-9a-f\]*).*$gdb_prompt $" {
> +	    if { $lim >= 50 } {
> +		pass "$test (stop at $lim)"
> +	    } else {
> +		incr lim
> +		gdb_test "set \$size = \$size + \$.size" ""
> +		send_gdb "print \$.next\n"
> +		exp_continue
> +	    }
> +	}
> +	-re ".*$gdb_prompt $" {
> +	    fail "$test (entry $lim)"
> +	}
> +	timeout {
> +	    fail "$test (timeout)"
> +	}
> +    }
> +    gdb_test_multiple "print \$size" "print \$size" {
> +	-re " = (\[0-9\]*)\r\n$gdb_prompt $" {
> +	    set size $expect_out(1,string)
> +	    pass "print \$size"
> +	}
> +    }
> +    return $size;
> +}
> +


Andrew