In the resolute container I get the following output
./check_tcgets_2504 /dev/pts/0
/dev/pts/0 is a terminal (tty) using TCGETS.
/dev/pts/0 is NOT a terminal (tty) using TCGETS2.
with this program
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <linux/tty.h> // For TCGETS2
#include <asm-generic/termbits.h> // For struct termios2
int main(int argc, char *argv[]) {
// Check for the correct number of command-line arguments
if (argc != 2) {
fprintf(stderr, "Usage: %s <device>\n", argv[0]);
return 1;
}
// Open the specified device
int fd = open(argv[1], O_RDONLY);
if (fd < 0) {
perror("Failed to open device");
return 1;
}
// Check using TCGETS
struct termios tty;
if (ioctl(fd, TCGETS, &tty) == 0) {
printf("%s is a terminal (tty) using TCGETS.\n", argv[1]);
} else {
printf("%s is NOT a terminal (tty) using TCGETS.\n", argv[1]);
}
// Check using TCGETS2 with struct termios2
struct termios2 tty2;
if (ioctl(fd, TCGETS2, &tty2) == 0) {
printf("%s is a terminal (tty) using TCGETS2.\n", argv[1]);
} else {
printf("%s is NOT a terminal (tty) using TCGETS2.\n", argv[1]);
}
// Close the device
close(fd);
return 0;
}
Something might be wrong in the translation of TCGETS2 in QEMU.
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https://bugs.launchpad.net/bugs/2133188
Title:
Illegal instruction in memset under qemu-user for riscv64
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