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Add syscall support for insmod and rmmod

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This commit is contained in:
Gregory Nutt 2015-12-12 11:11:09 -06:00
parent 040835de00
commit 303123deb9
5 changed files with 47 additions and 6 deletions
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18
include/sys/syscall.h
View File

@ -152,12 +152,24 @@
# ifdef CONFIG_SCHED_HAVE_PARENT
# define SYS_wait (__SYS_waitpid+1)
# define SYS_waitid (__SYS_waitpid+2)
# define __SYS_posix_spawn (__SYS_waitpid+3)
# define __SYS_insmod (__SYS_waitpid+3)
# else
# define __SYS_posix_spawn (__SYS_waitpid+1)
# define __SYS_insmod (__SYS_waitpid+1)
#endif
#else
# define __SYS_posix_spawn __SYS_waitpid
# define __SYS_insmod __SYS_waitpid
#endif
/* The following can only be defined if we are configured to load
* OS modules from a file system.
*/
#ifdef CONFIG_MODULE
# define SYS_insmod __SYS_insmod
# define SYS_rmmod (__SYS_insmod+1)
# define __SYS_posix_spawn (__SYS_insmod+2)
#else
# define __SYS_posix_spawn __SYS_insmod
#endif
/* The following can only be defined if we are configured to execute

15
sched/module/mod_rmmod.c
View File

@ -83,15 +83,24 @@ int rmmod(FAR struct module_s *modp)
sdbg("ERROR: Failed to uninitialize the module: %d\n", ret);
return ret;
}
/* Nullify so that the uninitializer cannot be called again */
modp->uninitializer = NULL;
modp->arg = NULL;
}
/* Free the module memory */
/* Release memory holding the relocated ELF image */
/* Release resources held by the module */
if (modp->alloc != 0)
{
/* Free the module memory */
kmm_free((FAR void *)modp->alloc);
/* Nullify so that the memory cannot be freed again */
modp->alloc = NULL;
}
return ret;

2
syscall/syscall.csv
View File

@ -28,6 +28,7 @@
"getenv","stdlib.h","!defined(CONFIG_DISABLE_ENVIRON)","FAR char*","FAR const char*"
"getpid","unistd.h","","pid_t"
"getsockopt","sys/socket.h","CONFIG_NSOCKET_DESCRIPTORS > 0 && defined(CONFIG_NET)","int","int","int","int","FAR void*","FAR socklen_t*"
"insmod","nuttx/module.h",defined(CONFIG_MODULE),"int","FAR struct module_s *"
"ioctl","sys/ioctl.h","!defined(CONFIG_LIBC_IOCTL_VARIADIC) && (CONFIG_NSOCKET_DESCRIPTORS > 0 || CONFIG_NFILE_DESCRIPTORS > 0)","int","int","int","unsigned long"
"kill","signal.h","!defined(CONFIG_DISABLE_SIGNALS)","int","pid_t","int"
"listen","sys/socket.h","CONFIG_NSOCKET_DESCRIPTORS > 0 && defined(CONFIG_NET)","int","int","int"
@ -97,6 +98,7 @@
"rename","stdio.h","CONFIG_NFILE_DESCRIPTORS > 0 && !defined(CONFIG_DISABLE_MOUNTPOINT)","int","FAR const char*","FAR const char*"
"rewinddir","dirent.h","CONFIG_NFILE_DESCRIPTORS > 0","void","FAR DIR*"
"rmdir","unistd.h","CONFIG_NFILE_DESCRIPTORS > 0 && !defined(CONFIG_DISABLE_MOUNTPOINT)","int","FAR const char*"
"rmmod","nuttx/module.h",defined(CONFIG_MODULE),"int","FAR struct module_s *"
"sched_getparam","sched.h","","int","pid_t","struct sched_param*"
"sched_getscheduler","sched.h","","int","pid_t"
"sched_getstreams","nuttx/sched.h","CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_NFILE_STREAMS > 0","FAR struct streamlist*"

Can't render this file because it has a wrong number of fields in line 2.

9
syscall/syscall_lookup.h
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@ -106,6 +106,15 @@ SYSCALL_LOOKUP(up_assert, 2, STUB_up_assert)
# endif
#endif
/* The following can only be defined if we are configured to load
* OS modules from a file system.
*/
#ifdef CONFIG_MODULE
SYSCALL_LOOKUP(insmod, 1, STUB_insmod)
SYSCALL_LOOKUP(rmmod, 1, STUB_rmmod)
#endif
/* The following can only be defined if we are configured to execute
* programs from a file system.
*/

9
syscall/syscall_stublookup.c
View File

@ -107,6 +107,15 @@ uintptr_t STUB_wait(int nbr, uintptr_t parm1);
uintptr_t STUB_waitid(int nbr, uintptr_t parm1, uintptr_t parm2,
uintptr_t parm3, uintptr_t parm4);
/* The following can only be defined if we are configured to load
* OS modules from a file system.
*/
#ifdef CONFIG_MODULE
uintptr_t STUB_insmod(int nbr, uintptr_t parm1);
uintptr_t STUB_rmmod(int nbr, uintptr_t parm1);
#endif
/* The following can only be defined if we are configured to execute
* programs from a file system.
*/