diff options
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/main.c | 6 | ||||
| -rw-r--r-- | linux-user/signal.c | 12 | ||||
| -rw-r--r-- | linux-user/syscall.c | 22 |
3 files changed, 26 insertions, 14 deletions
diff --git a/linux-user/main.c b/linux-user/main.c index 9277df2e9d..149e35432e 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -928,11 +928,7 @@ int main(int argc, char **argv, char **envp) * Prepare copy of argv vector for target. */ target_argc = argc - optind; - target_argv = calloc(target_argc + 1, sizeof (char *)); - if (target_argv == NULL) { - (void) fprintf(stderr, "Unable to allocate memory for target_argv\n"); - exit(EXIT_FAILURE); - } + target_argv = g_new0(char *, target_argc + 1); /* * If argv0 is specified (using '-0' switch) we replace diff --git a/linux-user/signal.c b/linux-user/signal.c index a93148a4cb..05dc4afb52 100644 --- a/linux-user/signal.c +++ b/linux-user/signal.c @@ -1173,6 +1173,7 @@ static void handle_pending_signal(CPUArchState *cpu_env, int sig, CPUState *cpu = env_cpu(cpu_env); abi_ulong handler; sigset_t set; + target_siginfo_t unswapped; target_sigset_t target_old_set; struct target_sigaction *sa; TaskState *ts = get_task_state(cpu); @@ -1182,9 +1183,14 @@ static void handle_pending_signal(CPUArchState *cpu_env, int sig, k->pending = 0; /* - * Writes out siginfo values byteswapped, accordingly to the target. It also - * cleans the si_type from si_code making it correct for the target. + * Writes out siginfo values byteswapped, accordingly to the target. + * It also cleans the si_type from si_code making it correct for + * the target. We must hold on to the original unswapped copy for + * strace below, because si_type is still required there. */ + if (unlikely(qemu_loglevel_mask(LOG_STRACE))) { + unswapped = k->info; + } tswap_siginfo(&k->info, &k->info); sig = gdb_handlesig(cpu, sig, NULL, &k->info, sizeof(k->info)); @@ -1197,7 +1203,7 @@ static void handle_pending_signal(CPUArchState *cpu_env, int sig, } if (unlikely(qemu_loglevel_mask(LOG_STRACE))) { - print_taken_signal(sig, &k->info); + print_taken_signal(sig, &unswapped); } if (handler == TARGET_SIG_DFL) { diff --git a/linux-user/syscall.c b/linux-user/syscall.c index e12d969c2e..3df2b94d9a 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -9272,14 +9272,24 @@ static abi_long do_syscall1(CPUArchState *cpu_env, int num, abi_long arg1, #ifdef TARGET_NR_waitid case TARGET_NR_waitid: { + struct rusage ru; siginfo_t info; - info.si_pid = 0; - ret = get_errno(safe_waitid(arg1, arg2, &info, arg4, NULL)); - if (!is_error(ret) && arg3 && info.si_pid != 0) { - if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0))) + + ret = get_errno(safe_waitid(arg1, arg2, (arg3 ? &info : NULL), + arg4, (arg5 ? &ru : NULL))); + if (!is_error(ret)) { + if (arg3) { + p = lock_user(VERIFY_WRITE, arg3, + sizeof(target_siginfo_t), 0); + if (!p) { + return -TARGET_EFAULT; + } + host_to_target_siginfo(p, &info); + unlock_user(p, arg3, sizeof(target_siginfo_t)); + } + if (arg5 && host_to_target_rusage(arg5, &ru)) { return -TARGET_EFAULT; - host_to_target_siginfo(p, &info); - unlock_user(p, arg3, sizeof(target_siginfo_t)); + } } } return ret; |