mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-19 10:44:14 +08:00
37185b3324
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
#include <linux/threads.h>
|
|
#include <linux/stddef.h> // for NULL
|
|
#include <linux/elf.h> // for AT_NULL
|
|
|
|
/* The following function nicked from arch/ppc/kernel/process.c and
|
|
* adapted slightly */
|
|
/*
|
|
* XXX ld.so expects the auxiliary table to start on
|
|
* a 16-byte boundary, so we have to find it and
|
|
* move it up. :-(
|
|
*/
|
|
void shove_aux_table(unsigned long sp)
|
|
{
|
|
int argc;
|
|
char *p;
|
|
unsigned long e;
|
|
unsigned long aux_start, offset;
|
|
|
|
argc = *(int *)sp;
|
|
sp += sizeof(int) + (argc + 1) * sizeof(char *);
|
|
/* skip over the environment pointers */
|
|
do {
|
|
p = *(char **)sp;
|
|
sp += sizeof(char *);
|
|
} while (p != NULL);
|
|
aux_start = sp;
|
|
/* skip to the end of the auxiliary table */
|
|
do {
|
|
e = *(unsigned long *)sp;
|
|
sp += 2 * sizeof(unsigned long);
|
|
} while (e != AT_NULL);
|
|
offset = ((aux_start + 15) & ~15) - aux_start;
|
|
if (offset != 0) {
|
|
do {
|
|
sp -= sizeof(unsigned long);
|
|
e = *(unsigned long *)sp;
|
|
*(unsigned long *)(sp + offset) = e;
|
|
} while (sp > aux_start);
|
|
}
|
|
}
|
|
/* END stuff taken from arch/ppc/kernel/process.c */
|
|
|