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Fix Layering Iverwrites

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This commit is contained in:
TheBrokenRail 2024-05-09 17:50:02 -04:00
parent 37e1abbdd3
commit e1f0787e48
4 changed files with 16 additions and 9 deletions
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2
dependencies/symbol-processor/src vendored

@ -1 +1 @@
Subproject commit 853481bd9ae617747fd1a5d0b6255bdf3946c6dd
Subproject commit 9697b35de4d783282afdd3a4c643951ce49a0158

1
launcher/src/client/available-feature-flags
View File

@ -62,3 +62,4 @@ TRUE Display Date In Select World Screen
TRUE Optimized Chunk Sorting
TRUE Disable Buggy Held Item Caching
TRUE Add Reborn Info To Options
FALSE Track FPS

15
libreborn/include/libreborn/patch.h
View File

@ -27,13 +27,12 @@ void _overwrite_call(const char *file, int line, void *start, void *target);
static name##_t _helper_for_##target = __overwrite_helper_for_##name(target, _original_for_##target)
// Replace All Calls To Method start With target
void _overwrite_calls(const char *file, int line, void *start, void *target);
void *_overwrite_calls(const char *file, int line, void *start, void *target);
#define overwrite_calls_manual(start, target) _overwrite_calls(__FILE__, __LINE__, start, target)
#define overwrite_calls(start, target) \
{ \
_setup_fancy_overwrite(start, start, target); \
overwrite_calls_manual((void *) start, (void *) _helper_for_##target); \
start = _helper_for_##target; \
start = (start##_t) overwrite_calls_manual((void *) start, (void *) _helper_for_##target); \
}
// Replace All Calls To Virtual Method start With target
@ -45,7 +44,12 @@ void _overwrite_calls(const char *file, int line, void *start, void *target);
// Replace All Calls To start With target Within [to, from)
void _overwrite_calls_within(const char *file, int line, void *from, void *to, void *start, void *target);
#define overwrite_calls_within(from, to, start, target) _overwrite_calls_within(__FILE__, __LINE__, from, to, start, target)
#define overwrite_calls_within_manual(from, to, start, target) _overwrite_calls_within(__FILE__, __LINE__, from, to, start, target)
#define overwrite_calls_within(from, to, start, target) \
{ \
start##_t type_check = target; \
overwrite_calls_within_manual(from, to, (void *) start, (void *) type_check); \
}
// Get Target Address From BL Instruction
void *extract_from_bl_instruction(unsigned char *from);
@ -55,9 +59,8 @@ void _overwrite(const char *file, int line, void *start, void *target);
#define overwrite_manual(start, target) _overwrite(__FILE__, __LINE__, (void *) start, (void *) target)
#define overwrite(start, target) \
{ \
_check_if_method_is_new(start); \
start##_t type_check = target; \
overwrite_manual(start, (void *) type_check); \
overwrite_manual((void *) start, (void *) type_check); \
}
// Patch Instruction

5
libreborn/src/patch/patch.cpp
View File

@ -77,7 +77,7 @@ static int _overwrite_calls_within_internal(const char *file, int line, void *fr
#define TEXT_END 0x1020c0
// Overwrite All B(L) Intrusctions That Target The Specified Address
#define NO_CALLSITE_ERROR "(%s:%i) Unable To Find Callsites For %p"
void _overwrite_calls(const char *file, int line, void *start, void *target) {
void *_overwrite_calls(const char *file, int line, void *start, void *target) {
// Add New Target To Code Block
void *code_block = update_code_block(target);
@ -93,6 +93,9 @@ void _overwrite_calls(const char *file, int line, void *start, void *target) {
if (found < 1) {
ERR(NO_CALLSITE_ERROR, file, line, start);
}
// Return
return code_block;
}
void _overwrite_calls_within(const char *file, int line, void *from /* inclusive */, void *to /* exclusive */, void *target, void *replacement) {
// Add New Target To Code Block