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comparison packages/hal/synth/arch/current/include/hal_io.h @ 1862:d27de7fdbf21

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* include/hal_io.h: Add cyg_hal_sys_shmget(), cyg_hal_sys_shmat() and cyg_hal_sys_shmdt() system calls * src/synth_syscalls.c: Implementations of cyg_hal_sys_shmget(), cyg_hal_sys_shmat() and cyg_hal_sys_shmdt(). Moved cyg_hal_sys_mmap() from the flash driver to here.
author asl
date Wed, 15 Dec 2004 14:01:38 +0000
parents 9a9ce858560e
children e24eba6542a3
comparison
equal deleted inserted replaced
1861:4a42c095c4fa 1862:d27de7fdbf21
475 externC int cyg_hal_sys_execve(const char*, const char* [], const char* []); 475 externC int cyg_hal_sys_execve(const char*, const char* [], const char* []);
476 externC int cyg_hal_sys_pipe(int []); 476 externC int cyg_hal_sys_pipe(int []);
477 externC int cyg_hal_sys_close(int); 477 externC int cyg_hal_sys_close(int);
478 externC int cyg_hal_sys_dup2(int, int); 478 externC int cyg_hal_sys_dup2(int, int);
479 479
480 #define CYG_HAL_SYS_IPCOP_semop 1
481 #define CYG_HAL_SYS_IPCOP_semget 2
482 #define CYG_HAL_SYS_IPCOP_semctl 3
483 #define CYG_HAL_SYS_IPCOP_msgsnd 11
484 #define CYG_HAL_SYS_IPCOP_msgrcv 12
485 #define CYG_HAL_SYS_IPCOP_msgget 13
486 #define CYG_HAL_SYS_IPCOP_msgctl 14
487 #define CYG_HAL_SYS_IPCOP_shmat 21
488 #define CYG_HAL_SYS_IPCOP_shmdt 22
489 #define CYG_HAL_SYS_IPCOP_shmget 23
490 #define CYG_HAL_SYS_IPCOP_shmctl 24
491
492 /*The ipc system call, which is used by the following shmem
493 functions. These may be unportable*/
494
495 // Generic system call. Depending on the value of call, it will
496 // perform the following functions.
497 externC int cyg_hal_sys_ipc(int call, int first, int second,
498 int third, void* ptr);
499 //get an identifier for a shared memory segment
500 externC int cyg_hal_sys_shmget (int key, int size, int shmflg);
501 //attach to an shared memory segment
502 externC void * cyg_hal_sys_shmat (int shmid, const void* shmaddr,
503 int shmflg);
504 //detach from it again
505 externC int cyg_hal_sys_shmdt (const void* shmaddr);
506
480 // The actual implementation appears to return the new brk() value. 507 // The actual implementation appears to return the new brk() value.
481 externC void* cyg_hal_sys_brk(void*); 508 externC void* cyg_hal_sys_brk(void*);
482 509
483 // Returns the number of characters placed in the buffer or <0 for error, 510 // Returns the number of characters placed in the buffer or <0 for error,
484 // not a char*. 511 // not a char*.
485 externC int cyg_hal_sys_getcwd(char*, int); 512 externC int cyg_hal_sys_getcwd(char*, int);
486 513
487 // mmap on the "host" system - this may be unportable. 514 // mmap on the "host" system - this may be unportable. This is the
488 externC int cyg_hal_sys_mmap(struct cyg_hal_sys_mmap_args *); 515 // really system call into the kernel which passes one structure
516 // containing all the arguments.
517 externC int cyg_hal_sys_mmapx(struct cyg_hal_sys_mmap_args *);
518
519 // This is the mmap call that users are used to.
520 externC int cyg_hal_sys_mmap(void *addr,
521 unsigned long length,
522 unsigned long prot,
523 unsigned long flags,
524 unsigned long fd,
525 unsigned long off);
489 526
490 externC int cyg_hal_sys_readdir(unsigned int fd, 527 externC int cyg_hal_sys_readdir(unsigned int fd,
491 struct cyg_hal_sys_dirent *dp, 528 struct cyg_hal_sys_dirent *dp,
492 unsigned int count); 529 unsigned int count);
493 externC int cyg_hal_sys_lstat(const char* name, struct cyg_hal_sys_stat *buf); 530 externC int cyg_hal_sys_lstat(const char* name, struct cyg_hal_sys_stat *buf);