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[tools] Add x64 mempatch-hook

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This commit is contained in:
Will Xyen 2020-10-06 19:53:42 -07:00
parent e49149b03d
commit 3ed6ac6290
2 changed files with 19 additions and 15 deletions
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1
Module.mk
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@ -196,6 +196,7 @@ $(zipdir)/tools-x64.zip: \
build/bin/indep-64/iidx-ezusb-exit-hook.dll \ build/bin/indep-64/iidx-ezusb-exit-hook.dll \
build/bin/indep-64/iidx-ezusb2-exit-hook.dll \ build/bin/indep-64/iidx-ezusb2-exit-hook.dll \
build/bin/indep-64/jbiotest.exe \ build/bin/indep-64/jbiotest.exe \
build/bin/indep-64/mempatch-hook.dll \
| $(zipdir)/ | $(zipdir)/
$(V)echo ... $@ $(V)echo ... $@
$(V)zip -j $@ $^ $(V)zip -j $@ $^

33
src/main/mempatch-hook/main.c
View File

@ -1,5 +1,6 @@
#include <windows.h> #include <windows.h>
#include <inttypes.h>
#include <stdbool.h> #include <stdbool.h>
#include <stdio.h> #include <stdio.h>
@ -9,19 +10,21 @@
#include "util/log.h" #include "util/log.h"
static bool patch_memory_check_data( static bool patch_memory_check_data(
uint32_t base_address, uint32_t address, uint8_t *data_expected, size_t len) uintptr_t base_address, uintptr_t address, uint8_t *data_expected, size_t len)
{ {
uint8_t *dest = (uint8_t *) (base_address + address); uint8_t *dest = (uint8_t *)(base_address + address);
bool success = true; bool success = true;
for (size_t i = 0; i < len; i++) { for (size_t i = 0; i < len; i++) {
if (dest[i] != data_expected[i]) { if (dest[i] != data_expected[i]) {
log_warning( log_warning(
"Memcheck error: base %X + address %X + offset %d: " "Memcheck error: base %" PRIXPTR " + address %" PRIXPTR " + offset %d: "
"expected %X, found %X", "expected %X, found %X",
base_address, base_address,
address, address,
i, // this cast is technically wrong
// but no one should be patching 32K worth of bytes at once
(int)i,
data_expected[i], data_expected[i],
dest[i]); dest[i]);
success = false; success = false;
@ -32,11 +35,11 @@ static bool patch_memory_check_data(
} }
static bool patch_memory_data( static bool patch_memory_data(
uint32_t base_address, uint32_t address, uint8_t *data, size_t len) uintptr_t base_address, uintptr_t address, uint8_t *data, size_t len)
{ {
DWORD old_protect; DWORD old_protect;
uint32_t dest = base_address + address; uint8_t *dest = (uint8_t *)(base_address + address);
if (!VirtualProtect( if (!VirtualProtect(
(void *) dest, (void *) dest,
@ -44,7 +47,7 @@ static bool patch_memory_data(
PAGE_EXECUTE_READWRITE, PAGE_EXECUTE_READWRITE,
&old_protect)) { &old_protect)) {
log_warning( log_warning(
"VirtualProtect %X (%d) failed: %d", "VirtualProtect %p (%Iu) failed: %d",
dest, dest,
len, len,
(int) GetLastError()); (int) GetLastError());
@ -56,7 +59,7 @@ static bool patch_memory_data(
if (!VirtualProtect( if (!VirtualProtect(
(void *) dest, sizeof(uint8_t) * len, old_protect, &old_protect)) { (void *) dest, sizeof(uint8_t) * len, old_protect, &old_protect)) {
log_warning( log_warning(
"VirtualProtect (2) %X (%d) failed: %d", "VirtualProtect (2) %p (%Iu) failed: %d",
dest, dest,
len, len,
(int) GetLastError()); (int) GetLastError());
@ -83,8 +86,8 @@ static bool patch_memory_apply(char *script)
char *data_expected_str = NULL; char *data_expected_str = NULL;
size_t data_expected_str_len; size_t data_expected_str_len;
uint32_t address; uintptr_t address;
uint32_t address_base; uintptr_t address_base;
HMODULE hmodule; HMODULE hmodule;
uint8_t data[4096]; uint8_t data[4096];
size_t data_len; size_t data_len;
@ -151,10 +154,10 @@ static bool patch_memory_apply(char *script)
goto error_next_line; goto error_next_line;
} }
address_base = (uint32_t) hmodule; address_base = (uintptr_t) hmodule;
} }
address = strtol(address_str, NULL, 16); address = strtoll(address_str, NULL, 16);
/* Most likely an error but we don't know for sure */ /* Most likely an error but we don't know for sure */
if (address == 0) { if (address == 0) {
@ -166,7 +169,7 @@ static bool patch_memory_apply(char *script)
if (data_len % 2 != 0) { if (data_len % 2 != 0) {
log_warning( log_warning(
"[%d] Data length %d mod 2 != 0: %s", "[%d] Data length %Iu mod 2 != 0: %s",
line_cnt, line_cnt,
data_len, data_len,
data_str); data_str);
@ -181,7 +184,7 @@ static bool patch_memory_apply(char *script)
if (data_expected_len % 2 != 0) { if (data_expected_len % 2 != 0) {
log_warning( log_warning(
"[%d] Data expected length %d mod 2 != 0: %s", "[%d] Data expected length %Iu mod 2 != 0: %s",
line_cnt, line_cnt,
data_len, data_len,
data_str); data_str);
@ -286,7 +289,7 @@ BOOL WINAPI DllMain(HMODULE mod, DWORD reason, void *ctx)
filepath = argv[i + 1]; filepath = argv[i + 1];
log_info("Loading memory patch file: %s", filepath); log_info("Loading memory patch file: %s", filepath);
patch_memory_from_file("test.mph"); patch_memory_from_file(filepath);
log_info("Finished patching with file %s", filepath); log_info("Finished patching with file %s", filepath);
i++; i++;