38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <inttypes.h>
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <internal/lib.h> // page_size
|
|
#include "machine.h"
|
|
#include "api/fs/fs.h"
|
|
#include "debug.h"
|
|
#include "symbol.h"
|
|
|
|
int arch__fix_module_text_start(u64 *start, u64 *size, const char *name)
|
|
{
|
|
u64 m_start = *start;
|
|
char path[PATH_MAX];
|
|
|
|
snprintf(path, PATH_MAX, "module/%.*s/sections/.text",
|
|
(int)strlen(name) - 2, name + 1);
|
|
if (sysfs__read_ull(path, (unsigned long long *)start) < 0) {
|
|
pr_debug2("Using module %s start:%#lx\n", path, m_start);
|
|
*start = m_start;
|
|
} else {
|
|
/* Successful read of the modules segment text start address.
|
|
* Calculate difference between module start address
|
|
* in memory and module text segment start address.
|
|
* For example module load address is 0x3ff8011b000
|
|
* (from /proc/modules) and module text segment start
|
|
* address is 0x3ff8011b870 (from file above).
|
|
*
|
|
* Adjust the module size and subtract the GOT table
|
|
* size located at the beginning of the module.
|
|
*/
|
|
*size -= (*start - m_start);
|
|
}
|
|
|
|
return 0;
|
|
}
|