@@ -4678,11 +4678,22 @@ static int open_self_stat(void *cpu_env, int fd)
int len;
uint64_t val = 0;
- if (i == 27) {
- /* stack bottom */
- val = start_stack;
+ if (i == 0) {
+ /* pid */
+ val = getpid();
+ snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
+ } else if (i == 1) {
+ /* app name */
+ snprintf(buf, sizeof(buf), "(%s) ", ts->bprm->argv[0]);
+ } else if (i == 27) {
+ /* stack bottom */
+ val = start_stack;
+ snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
+ } else {
+ /* for the rest, there is MasterCard */
+ snprintf(buf, sizeof(buf), "0%c", i == 43 ? '\n' : ' ');
}
- snprintf(buf, sizeof(buf), "%"PRId64 "%c", val, i == 43 ? '\n' : ' ');
+
len = strlen(buf);
if (write(fd, buf, len) != len) {
return -1;
With the current fake /proc/self/stat implementation `ps` is segfaulting because it expects to read PID and argv[0] as first and second field respectively, with the latter being enclosed between backets. Reproducing is as easy as running: `ps` inside qemu-user chroot with /proc mounted. Signed-off-by: Fabio Erculiani <lxnay@sabayon.org> --- linux-user/syscall.c | 19 +++++++++++++++---- 1 files changed, 15 insertions(+), 4 deletions(-)