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https://git.kernel.org/pub/scm/libs/libcap/libcap.git
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b5dcf3aa87
I occasionally test libcap against a custom kernel using QEMU. Now I have a simple exit binary for exiting with status. From the top level, one can use: make ktest However, for more control: cd kdebug make test If you want to look around after the tests run: make shell Exit the shell & QEMU with ctrl-D (or exit). Signed-off-by: Andrew G. Morgan <morgan@kernel.org>
37 lines
842 B
C
37 lines
842 B
C
/*
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* See https://stackoverflow.com/questions/42208228/how-to-automatically-close-the-execution-of-the-qemu-after-end-of-process
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/io.h>
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#include <unistd.h>
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#define SHUTDOWN_PORT 0x604
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#define EXIT_PORT 0x501
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static void clean_exit(void) {
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ioperm(SHUTDOWN_PORT, 16, 1);
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outw(0x2000, SHUTDOWN_PORT);
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}
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int main(int argc, char **argv) {
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int status;
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if (argc != 2) {
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clean_exit();
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}
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status = atoi(argv[1]);
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printf("exiting with status %d (in three seconds)\n", status);
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sleep(3);
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if (!status) {
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clean_exit();
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}
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ioperm(EXIT_PORT, 8, 1);
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/*
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* status returned is 1+(2*orig_status)
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*/
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outb(status-1, EXIT_PORT);
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printf("didn't exit.. did you include '-device isa-debug-exit'"
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" in qemu command?\n");
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exit(1);
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}
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