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#include "thunks.h" |
#include "thunks.h" |
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#include "emul_op.h" |
#include "emul_op.h" |
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#include "cpu_emulation.h" |
#include "cpu_emulation.h" |
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#include "xlowmem.h" |
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// Native function declarations |
// Native function declarations |
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#include "main.h" |
#include "main.h" |
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#include "ether.h" |
#include "ether.h" |
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#include "macos_util.h" |
#include "macos_util.h" |
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|
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// Generate PowerPC thunks for GetResource() replacements? |
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#define POWERPC_GET_RESOURCE_THUNKS 1 |
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/* NativeOp instruction format: |
/* NativeOp instruction format: |
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+------------+--------------------------+--+----------+------------+ |
+------------+--------------------------+--+----------+------------+ |
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switch (selector) { |
switch (selector) { |
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case NATIVE_DISABLE_INTERRUPT: |
case NATIVE_DISABLE_INTERRUPT: |
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case NATIVE_ENABLE_INTERRUPT: |
case NATIVE_ENABLE_INTERRUPT: |
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case NATIVE_CHECK_LOAD_INVOC: |
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opcode = POWERPC_NATIVE_OP(0, selector); |
opcode = POWERPC_NATIVE_OP(0, selector); |
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break; |
break; |
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case NATIVE_PATCH_NAME_REGISTRY: |
case NATIVE_PATCH_NAME_REGISTRY: |
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/* |
/* |
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* Generate PowerPC thunks for GetResource() replacements |
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*/ |
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#if EMULATED_PPC |
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static uint32 get_resource_func; |
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static uint32 get_1_resource_func; |
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static uint32 get_ind_resource_func; |
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static uint32 get_1_ind_resource_func; |
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static uint32 r_get_resource_func; |
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static void generate_powerpc_thunks(void) |
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{ |
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static uint32 get_resource_template[] = { |
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PL(0x7c0802a6), // mflr r0 |
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PL(0x90010008), // stw r0,8(r1) |
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PL(0x9421ffbc), // stwu r1,-68(r1) |
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PL(0x90610038), // stw r3,56(r1) |
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PL(0x9081003c), // stw r4,60(r1) |
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PL(0x00000000), // lwz r0,XLM_GET_RESOURCE(r0) |
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PL(0x80402834), // lwz r2,XLM_RES_LIB_TOC(r0) |
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PL(0x7c0903a6), // mtctr r0 |
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PL(0x4e800421), // bctrl |
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PL(0x90610040), // stw r3,64(r1) |
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PL(0x80610038), // lwz r3,56(r1) |
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PL(0xa881003e), // lha r4,62(r1) |
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PL(0x80a10040), // lwz r5,64(r1) |
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PL(0x00000001), // <check_load_invoc> |
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PL(0x80610040), // lwz r3,64(r1) |
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PL(0x8001004c), // lwz r0,76(r1) |
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PL(0x7c0803a6), // mtlr r0 |
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PL(0x38210044), // addi r1,r1,68 |
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PL(0x4e800020) // blr |
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}; |
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const uint32 get_resource_template_size = sizeof(get_resource_template); |
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int xlm_index = -1, check_load_invoc_index = -1; |
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for (int i = 0; i < get_resource_template_size/4; i++) { |
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uint32 opcode = ntohl(get_resource_template[i]); |
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switch (opcode) { |
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case 0x00000000: |
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xlm_index = i; |
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break; |
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case 0x00000001: |
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check_load_invoc_index = i; |
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break; |
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} |
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} |
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assert(xlm_index != -1 && check_load_invoc_index != -1); |
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uint32 check_load_invoc_opcode = NativeOpcode(NATIVE_CHECK_LOAD_INVOC); |
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uintptr base; |
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// GetResource() |
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get_resource_func = base = SheepMem::Reserve(get_resource_template_size); |
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Host2Mac_memcpy(base, get_resource_template, get_resource_template_size); |
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WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_GET_RESOURCE); |
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WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode); |
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|
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// Get1Resource() |
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get_1_resource_func = base = SheepMem::Reserve(get_resource_template_size); |
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Host2Mac_memcpy(base, get_resource_template, get_resource_template_size); |
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WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_GET_1_RESOURCE); |
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WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode); |
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|
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// GetIndResource() |
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get_ind_resource_func = base = SheepMem::Reserve(get_resource_template_size); |
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Host2Mac_memcpy(base, get_resource_template, get_resource_template_size); |
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WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_GET_IND_RESOURCE); |
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WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode); |
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// Get1IndResource() |
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get_1_ind_resource_func = base = SheepMem::Reserve(get_resource_template_size); |
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Host2Mac_memcpy(base, get_resource_template, get_resource_template_size); |
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WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_GET_1_IND_RESOURCE); |
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WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode); |
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|
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// RGetResource() |
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r_get_resource_func = base = SheepMem::Reserve(get_resource_template_size); |
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Host2Mac_memcpy(base, get_resource_template, get_resource_template_size); |
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WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_R_GET_RESOURCE); |
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WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode); |
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} |
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#endif |
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/* |
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* Initialize the thunks system |
* Initialize the thunks system |
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*/ |
*/ |
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|
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native_op[i].tvect = base; |
native_op[i].tvect = base; |
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native_op[i].func = base + 8; |
native_op[i].func = base + 8; |
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} |
} |
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#if POWERPC_GET_RESOURCE_THUNKS |
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generate_powerpc_thunks(); |
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native_op[NATIVE_GET_RESOURCE].func = get_resource_func; |
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native_op[NATIVE_GET_1_RESOURCE].func = get_1_resource_func; |
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native_op[NATIVE_GET_IND_RESOURCE].func = get_ind_resource_func; |
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native_op[NATIVE_GET_1_IND_RESOURCE].func = get_1_ind_resource_func; |
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native_op[NATIVE_R_GET_RESOURCE].func = r_get_resource_func; |
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#endif |
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#else |
#else |
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#if defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) |
#if defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) |
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#define DEFINE_NATIVE_OP(ID, FUNC) do { \ |
#define DEFINE_NATIVE_OP(ID, FUNC) do { \ |