diff --git a/arch/sim/src/nuttx-names.dat b/arch/sim/src/nuttx-names.dat
index 698df015764..313d7b9caa5 100644
--- a/arch/sim/src/nuttx-names.dat
+++ b/arch/sim/src/nuttx-names.dat
@@ -1,34 +1,53 @@
+_exit          NX_exit
 accept         NXaccept
+asprintf       NXasprintf
 calloc         NXcalloc
+clearenv       NXclearenv
 clock_gettime  NXclock_gettime
 close          NXclose
 closedir       NXclosedir
 dup            NXdup
+dup2           NXdup2
+exit           NXexit
 free           NXfree
 fclose         NXfclose
+fdopen         NXfdopen
+fgetc          NXfgetc
 fopen          NXfopen
+fprintf        NXfprintf
 fputc          NXfputc
 fcntl          NXfcntl
 fputs          NXfputs
 fread          NXfread
+fseek          NXfseek
 fwrite         NXfwrite
 fsync          NXfsync
 getenv         NXgetenv
+getopt         NXgetopt
+getpid         NXgetpid
 gettimeofday   NXgettimeofday
 ioctl          NXioctl
 isatty         NXisatty
+kill           NXkill
 listen         NXlisten
 lseek          NXlseek
+mallinfo       NXmallinfo
 malloc         NXmalloc
 malloc_init    NXmalloc_init
+memcpy         NXmemcpy
+memset         NXmemset
+mktime         NXmktime
+mq_close       NXmq_close
 mkdir          NXmkdir
 mount          NXmount
 open           NXopen
 opendir        NXopendir
 nanosleep      NXnanosleep
+pipe           NXpipe
 poll           NXpoll
 printf         NXprintf
 pthread_create NXpthread_create
+pthread_exit   NXpthread_exit
 pthread_getspecific NXpthread_getspecific
 pthread_key_create NXpthread_key_create
 pthread_kill   NXpthread_kill
@@ -56,22 +75,41 @@ sem_post       NXsem_post
 sem_wait       NXsem_wait
 send           NXsend
 sendto         NXsendto
+setenv         NXsetenv
+setlogmask     NXsetlogmask
 setsockopt     NXsetsockopt
 sigaction      NXsigaction
+sigemptyset    NXsigemptyset
 sighold        NXsighold
 sigprocmask    NXsigprocmask
 sigtimedwait   NXsigtimedwait
 sigrelse       NXsigrelse
 sleep          NXsleep
+snprintf       NXsnprintf
 socket         NXsocket
+sprintf        NXsprintf
 stat           NXstat
 statfs         NXstatfs
+strchr         NXstrchr
+strcpy         NXstrcpy
+strcspn        NXstrcspn
+strdup         NXstrdup
+strftime       NXstrftime
+strlen         NXstrlen
+strncasecmp    NXstrncasecmp
+strncmp        NXstrncmp
+strncpy        NXstrncpy
+strtok_r       NXstrtok_r
+syslog         NXsyslog
 system         NXsystem
 tcgetattr      NXtcgetattr
 tcsetattr      NXtcsetattr
 umount2        NXumount2
 unlink         NXunlink
+unsetenv       NXunsetenv
 usleep         NXusleep
+vasprintf      NXvasprintf
 vfork          NXvfork
+vfprint        NXvfprint
 write          NXwrite
 zmalloc        NXzmalloc