43 lines
2.3 KiB
C
43 lines
2.3 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ This program is free software; you can redistribute it and/or modify │
|
|
│ it under the terms of the GNU General Public License as published by │
|
|
│ the Free Software Foundation; version 2 of the License. │
|
|
│ │
|
|
│ This program is distributed in the hope that it will be useful, but │
|
|
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
|
|
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
|
|
│ General Public License for more details. │
|
|
│ │
|
|
│ You should have received a copy of the GNU General Public License │
|
|
│ along with this program; if not, write to the Free Software │
|
|
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
|
|
│ 02110-1301 USA │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/dce.h"
|
|
#include "libc/runtime/runtime.h"
|
|
|
|
/**
|
|
* Applies fixups to 64-bit rela addresses in binary.
|
|
*/
|
|
void __relocate(void) {
|
|
ptrdiff_t skew;
|
|
unsigned char **p;
|
|
p = __relo_start;
|
|
if (p != __relo_end) {
|
|
skew = (intptr_t)p - (intptr_t)*p;
|
|
do {
|
|
if (*p) {
|
|
*p += skew;
|
|
if (!NoDebug() && !(_base <= *p && *p < _end)) {
|
|
asm("int3");
|
|
}
|
|
}
|
|
} while (++p != __relo_end);
|
|
}
|
|
return;
|
|
}
|