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* util/guest-random: Clean up global variable shadowingPhilippe Mathieu-Daudé2023-10-061-4/+4
| | | | | | | | | | | | | | | | Fix: util/guest-random.c:90:45: error: declaration shadows a variable in the global scope [-Werror,-Wshadow] int qemu_guest_random_seed_main(const char *optarg, Error **errp) ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/getopt.h:77:14: note: previous declaration is here extern char *optarg; /* getopt(3) external variables */ ^ Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20231004120019.93101-13-philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
* util: Add qemu_guest_getrandom and associated routinesRichard Henderson2019-05-221-0/+68
This routine is intended to produce high-quality random numbers to the guest. Normally, such numbers are crypto quality from the host, but a command-line option can force the use of a fully deterministic sequence for use while debugging. Reviewed-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>