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Implemented a generic syscall mechanism.

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Minor cleanup in syscalls.h.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10451 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2004-12-14 15:46:53 +00:00
parent a36b16ba28
commit c3c3d22f64
3 changed files with 79 additions and 24 deletions
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39
headers/private/kernel/generic_syscall.h Normal file
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@ -0,0 +1,39 @@
/*
* Copyright 2004, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _KERNEL_GENERIC_SYSCALLS_H
#define _KERNEL_GENERIC_SYSCALLS_H
#include <SupportDefs.h>
/* If we decide to make this API public, the contents of this file
* should be moved to KernelExport.h
*/
typedef status_t (*syscall_hook)(uint32 subsystem, uint32 function, void *buffer, size_t bufferSize);
/* predefined functions */
#define B_SYSCALL_INFO ~0UL
// gets a minimum version uint32, and fills it with the current version on return
/* syscall flags */
#define B_SYSCALL_NOT_REPLACEABLE 1
#define B_DO_NOT_REPLACE_SYSCALL 2
#ifdef __cplusplus
extern "C" {
#endif
status_t register_generic_syscall(uint32 subsystem, syscall_hook hook,
uint32 version, uint32 flags);
status_t unregister_generic_syscall(uint32 subsystem, uint32 version);
#ifdef __cplusplus
}
#endif
#endif /* _KERNEL_GENERIC_SYSCALLS_H */

15
headers/private/kernel/ksyscalls.h
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@ -5,8 +5,19 @@
#ifndef _KERNEL_SYSCALLS_H
#define _KERNEL_SYSCALLS_H
#include <sys/types.h>
int syscall_dispatcher(unsigned long call_num, void *arg_buffer, uint64 *call_ret);
#include <SupportDefs.h>
#ifdef __cplusplus
extern "C" {
#endif
int32 syscall_dispatcher(uint32 function, void *argBuffer, uint64 *_returnValue);
status_t generic_syscall_init(void);
#ifdef __cplusplus
}
#endif
#endif /* _KERNEL_SYSCALLS_H */

49
headers/private/kernel/syscalls.h
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@ -37,6 +37,8 @@ struct dirent;
#endif
extern int _kern_null();
extern status_t _kern_generic_syscall(uint32 subsystem, uint32 function,
void *buffer, size_t bufferSize);
extern int _kern_getrlimit(int resource, struct rlimit * rlp);
extern int _kern_setrlimit(int resource, const struct rlimit * rlp);
@ -194,32 +196,35 @@ extern bigtime_t _kern_system_time();
extern status_t _kern_snooze_etc(bigtime_t time, int timebase, int32 flags);
// area functions
area_id _kern_create_area(const char *name, void **address, uint32 addressSpec,
size_t size, uint32 lock, uint32 protection);
extern area_id _kern_create_area(const char *name, void **address, uint32 addressSpec,
size_t size, uint32 lock, uint32 protection);
extern status_t _kern_delete_area(area_id area);
extern area_id _kern_area_for(void *address);
extern area_id _kern_find_area(const char *name);
extern status_t _kern_get_area_info(area_id area, area_info *info);
extern status_t _kern_get_next_area_info(team_id team, int32 *cookie, area_info *info);
extern status_t _kern_resize_area(area_id area, size_t newSize);
extern status_t _kern_set_area_protection(area_id area, uint32 newProtection);
extern area_id _kern_clone_area(const char *name, void **_address, uint32 addressSpec,
uint32 protection, area_id sourceArea);
area_id sys_vm_map_file(const char *name, void **address, int addr_type,
addr_t size, int lock, int mapping, const char *path, off_t offset);
status_t _kern_delete_area(area_id area);
area_id _kern_area_for(void *address);
area_id _kern_find_area(const char *name);
status_t _kern_get_area_info(area_id area, area_info *info);
status_t _kern_get_next_area_info(team_id team, int32 *cookie, area_info *info);
status_t _kern_resize_area(area_id area, size_t newSize);
status_t _kern_set_area_protection(area_id area, uint32 newProtection);
area_id _kern_clone_area(const char *name, void **_address, uint32 addressSpec,
uint32 protection, area_id sourceArea);
/* kernel port functions */
port_id _kern_create_port(int32 queue_length, const char *name);
int _kern_close_port(port_id id);
int _kern_delete_port(port_id id);
port_id _kern_find_port(const char *port_name);
int _kern_get_port_info(port_id id, struct port_info *info);
int _kern_get_next_port_info(team_id team, uint32 *cookie, struct port_info *info);
ssize_t _kern_port_buffer_size_etc(port_id port, uint32 flags, bigtime_t timeout);
int32 _kern_port_count(port_id port);
ssize_t _kern_read_port_etc(port_id port, int32 *msg_code, void *msg_buffer, size_t buffer_size, uint32 flags, bigtime_t timeout);
int _kern_set_port_owner(port_id port, team_id team);
int _kern_write_port_etc(port_id port, int32 msg_code, const void *msg_buffer, size_t buffer_size, uint32 flags, bigtime_t timeout);
extern port_id _kern_create_port(int32 queue_length, const char *name);
extern status_t _kern_close_port(port_id id);
extern status_t _kern_delete_port(port_id id);
extern port_id _kern_find_port(const char *port_name);
extern status_t _kern_get_port_info(port_id id, struct port_info *info);
extern status_t _kern_get_next_port_info(team_id team, uint32 *cookie, struct port_info *info);
extern ssize_t _kern_port_buffer_size_etc(port_id port, uint32 flags, bigtime_t timeout);
extern int32 _kern_port_count(port_id port);
extern ssize_t _kern_read_port_etc(port_id port, int32 *msgCode, void *msgBuffer,
size_t bufferSize, uint32 flags, bigtime_t timeout);
extern status_t _kern_set_port_owner(port_id port, team_id team);
extern status_t _kern_write_port_etc(port_id port, int32 msgCode, const void *msgBuffer,
size_t bufferSize, uint32 flags, bigtime_t timeout);
/* atomic_* ops (needed for CPUs that don't support them directly) */
#ifdef ATOMIC_FUNCS_ARE_SYSCALLS