[PATCH] sandbox: add memory leak debugging tooling around LeakSanitizer

[Sascha Hauer]

On Mon, Oct 27, 2025 at 08:44:45AM +0100, Ahmad Fatoum wrote:
> When enabled, this allows calling barebox_memleak_check() or running the
> checkleak command to instruct LeakSanitizer to sweep the memory and find
> unreferenced allocations.
> 
> LeakSanitizier is also enabled along AddressSanitizer and runs on AMD64
> Linux automatically on exit already.
> 
> +static int do_checkleak(int argc, char *argv[])
> +{
> +	unsigned int count;
> +	int opt;
> +
> +	while((opt = getopt(argc, argv, "l:")) > 0) {
> +		switch(opt) {
> +		case 'l':
> +			if (kstrtouint(optarg, 0, &count))
> +				return COMMAND_ERROR;
> +			(void)malloc(count);
> +			break;
> +		default:
> +			return COMMAND_ERROR_USAGE;
> +		}
> +	}
> +
> +	argv += optind;
> +	argc -= optind;
> +
> +	if (argc)
> +		return COMMAND_ERROR_USAGE;
> +
> +	memleak_check();

barebox exits in this call. Is this intended?

Sascha

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