minix/lib/libc/sys-minix/init.c

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#include <stdio.h>
#include <minix/ipc.h>
/* Minix kernel info, IPC functions pointers */
struct minix_kerninfo *_minix_kerninfo = NULL;
void __minix_init(void) __attribute__((__constructor__, __used__));
struct minix_ipcvecs _minix_ipcvecs = {
.sendrec_ptr = _sendrec_orig,
.send_ptr = _send_orig,
.notify_ptr = _notify_orig,
.senda_ptr = _senda_orig,
.sendnb_ptr = _sendnb_orig,
.receive_ptr = _receive_orig,
.do_kernel_call_ptr = _do_kernel_call_orig,
};
void __minix_init(void)
{
if((_minix_kernel_info_struct(&_minix_kerninfo)) != 0
|| _minix_kerninfo->kerninfo_magic != KERNINFO_MAGIC) {
_minix_kerninfo = NULL;
} else if((_minix_kerninfo->ki_flags & MINIX_KIF_IPCVECS) &&
_minix_kerninfo->minix_ipcvecs) {
_minix_ipcvecs = *_minix_kerninfo->minix_ipcvecs;
}
}