diff options
Diffstat (limited to 'sim/common/syscall.c')
| -rw-r--r-- | sim/common/syscall.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/sim/common/syscall.c b/sim/common/syscall.c index bad3b3b..df9dd92 100644 --- a/sim/common/syscall.c +++ b/sim/common/syscall.c @@ -141,6 +141,46 @@ cb_syscall (host_callback *cb, CB_SYSCALL *sc) switch (cb_target_to_host_syscall (cb, sc->func)) { + case CB_SYS_argc: + result = countargv (cb->argv); + break; + + case CB_SYS_argnlen: + { + if (sc->arg1 >= 0 && sc->arg1 < countargv (cb->argv)) + result = strlen (cb->argv[sc->arg1]); + else + { + result = -1; + errcode = EINVAL; + } + } + break; + + case CB_SYS_argn: + { + if (sc->arg1 >= 0 && sc->arg1 < countargv (cb->argv)) + { + const char *argn = cb->argv[sc->arg1]; + int len = strlen (argn); + int written = sc->write_mem (cb, sc, sc->arg2, argn, len + 1); + + if (written == len + 1) + result = sc->arg2; + else + { + result = -1; + errcode = EINVAL; + } + } + else + { + result = -1; + errcode = EINVAL; + } + } + break; + case CB_SYS_argvlen : { /* Compute how much space is required to store the argv,envp |