| Server IP : 74.208.127.88 / Your IP : 216.73.216.190 Web Server : Apache/2.4.41 (Ubuntu) System : Linux ubuntu 5.4.0-163-generic #180-Ubuntu SMP Tue Sep 5 13:21:23 UTC 2023 x86_64 User : www-data ( 33) PHP Version : 7.4.3-4ubuntu2.29 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /proc/self/root/lib/modules/5.4.0-163-generic/build/arch/microblaze/include/asm/ |
Upload File : |
/*
* uClinux flat-format executables
*
* Copyright (C) 2005 John Williams <jwilliams@itee.uq.edu.au>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*/
#ifndef _ASM_MICROBLAZE_FLAT_H
#define _ASM_MICROBLAZE_FLAT_H
#include <asm/unaligned.h>
/*
* Microblaze works a little differently from other arches, because
* of the MICROBLAZE_64 reloc type. Here, a 32 bit address is split
* over two instructions, an 'imm' instruction which provides the top
* 16 bits, then the instruction "proper" which provides the low 16
* bits.
*/
/*
* Crack open a symbol reference and extract the address to be
* relocated. rp is a potentially unaligned pointer to the
* reference
*/
static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
u32 *addr)
{
u32 *p = (__force u32 *)rp;
/* Is it a split 64/32 reference? */
if (relval & 0x80000000) {
/* Grab the two halves of the reference */
u32 val_hi, val_lo;
val_hi = get_unaligned(p);
val_lo = get_unaligned(p+1);
/* Crack the address out */
*addr = ((val_hi & 0xffff) << 16) + (val_lo & 0xffff);
} else {
/* Get the address straight out */
*addr = get_unaligned(p);
}
return 0;
}
/*
* Insert an address into the symbol reference at rp. rp is potentially
* unaligned.
*/
static inline int
flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 relval)
{
u32 *p = (__force u32 *)rp;
/* Is this a split 64/32 reloc? */
if (relval & 0x80000000) {
/* Get the two "halves" */
unsigned long val_hi = get_unaligned(p);
unsigned long val_lo = get_unaligned(p + 1);
/* insert the address */
val_hi = (val_hi & 0xffff0000) | addr >> 16;
val_lo = (val_lo & 0xffff0000) | (addr & 0xffff);
/* store the two halves back into memory */
put_unaligned(val_hi, p);
put_unaligned(val_lo, p+1);
} else {
/* Put it straight in, no messing around */
put_unaligned(addr, p);
}
return 0;
}
#define flat_get_relocate_addr(rel) (rel & 0x7fffffff)
#endif /* _ASM_MICROBLAZE_FLAT_H */