Newbyte/minecraft-pi-reborn
1
0
Fork 0
forked from minecraft-pi-reborn/minecraft-pi-reborn
Code Issues 1 Pull Requests Projects Releases Wiki Activity

Also Scan .data.rel.ro

Browse Source
This commit is contained in:
TheBrokenRail 2024-02-12 00:55:50 -05:00
parent a2b3bb128b
commit b033912633
1 changed files with 15 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
libreborn/src/patch/patch.cpp
View File

@ -29,19 +29,26 @@ void _overwrite_call(const char *file, int line, void *start, void *target) {
// .rodata Information // .rodata Information
#define RODATA_START 0x1020c8 #define RODATA_START 0x1020c8
#define RODATA_END 0x11665c #define RODATA_END 0x11665c
// .data.rel.ro Information
#define DATA_REL_RO_START 0x1352b8
#define DATA_REL_RO_END 0x135638
// Search And Patch VTables Containing Function // Search And Patch VTables Containing Function
#define scan_vtables(section) \
for (uintptr_t i = section##_START; i < section##_END; i = i + 4) { \
uint32_t *addr = (uint32_t *) i; \
if (*addr == (uintptr_t) target) { \
/* Found VTable Entry */ \
_patch_address(file, line, addr, replacement); \
found++; \
} \
}
static int _patch_vtables(const char *file, int line, void *target, void *replacement) { static int _patch_vtables(const char *file, int line, void *target, void *replacement) {
int found = 0; int found = 0;
for (uintptr_t i = RODATA_START; i < RODATA_END; i = i + 4) { scan_vtables(RODATA);
uint32_t *addr = (uint32_t *) i; scan_vtables(DATA_REL_RO);
if (*addr == (uintptr_t) target) {
// Found VTable Entry
_patch_address(file, line, addr, replacement);
found++;
}
}
return found; return found;
} }
#undef scan_vtables
// Patch Calls Within Range // Patch Calls Within Range
static int _overwrite_calls_within_internal(const char *file, int line, void *from, void *to, void *target, void *replacement) { static int _overwrite_calls_within_internal(const char *file, int line, void *from, void *to, void *target, void *replacement) {