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mcexec: propagate error in __NR_gettid handler

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Change-Id: I0e0f06199970fe839065567dcd5418d017b6ec00
This commit is contained in:
Balazs Gerofi
2021-02-03 10:25:16 +09:00
committed by Masamichi Takagi
parent 3d71c6a8eb
commit 4905c8e638
1 changed files with 4 additions and 1 deletions
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5
executer/user/mcexec.c
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@@ -4123,6 +4123,7 @@ int main_loop(struct thread_data_s *my_thread)
#endif
case __NR_gettid:{
int rc = 0;
/*
* Number of TIDs and the remote physical address where TIDs are
* expected are passed in arg 4 and 5, respectively.
@@ -4134,6 +4135,7 @@ int main_loop(struct thread_data_s *my_thread)
int *tids = malloc(sizeof(int) * w.sr.args[4]);
if (!tids) {
fprintf(stderr, "__NR_gettid(): error allocating TIDs\n");
rc = -ENOMEM;
goto gettid_out;
}
@@ -4154,13 +4156,14 @@ int main_loop(struct thread_data_s *my_thread)
trans.direction = MCEXEC_UP_TRANSFER_TO_REMOTE;
if (ioctl(fd, MCEXEC_UP_TRANSFER, &trans) != 0) {
rc = -EFAULT;
fprintf(stderr, "__NR_gettid(): error transfering TIDs\n");
}
free(tids);
}
gettid_out:
do_syscall_return(fd, cpu, 0, 0, 0, 0, 0);
do_syscall_return(fd, cpu, rc, 0, 0, 0, 0);
break;
}