mirror of
https://github.com/yuzu-emu/unicorn.git
synced 2024-12-23 09:25:38 +00:00
315 lines
11 KiB
C
315 lines
11 KiB
C
//
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// Dynamic loader for unicorn shared library in windows and linux.
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// This was made for v1.0 of unicorn.
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// Newer versions of unicorn may require changes to these files.
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//
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// Windows Notes:
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// If an absolute path to unicorn.dll is passed into uc_dyn_load() it will
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// still try to load the rest of the dependent dlls (ie libglib-2.0-0.dll etc)
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// from standard dll paths. This is usually the directory that the main
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// exe file, that loaded unicorn.dll, is in. This is standard behaviour for
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// Windows dll files, and not specific to unicorn dlls.
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//
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// So putting all dlls in their own directory and then attempting to load
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// unicorn.dll from that directory via an absolute path will cause
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// uc_dyn_load() to fail.
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//
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// The easiest way around this is to place all dlls in the same directory
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// as your main exe file. Other ways around this are using various flags
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// for LoadLibraryEx() or by calling SetDllDirectory().
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//
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// LoadLibraryEx info:
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// https://msdn.microsoft.com/en-us/library/windows/desktop/ms684179(v=vs.85).aspx
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// SetDllDirectory() info:
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// https://msdn.microsoft.com/en-us/library/windows/desktop/ms686203(v=vs.85).aspx
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//
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// Zak Escano - November 2015
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//
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// Only use this if DYNLOAD is set in preprocessor definitions
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#ifdef DYNLOAD
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// This is to detect whether we are loading a dll in windows or a so in linux.
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#ifdef _MSC_VER
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#define WINDOWS_DLL 1
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#endif
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#include "unicorn_dynload.h"
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#ifdef WINDOWS_DLL
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#include <Windows.h>
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#define DYNLOAD_DEFPATH "unicorn.dll"
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#define DYNLOAD_HANDLE HMODULE
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#define DYNLOAD_LOADLIB(path, f)LoadLibraryEx(path, NULL, f)
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#define DYNLOAD_FREELIB(handle) FreeLibrary(handle)
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#define DYNLOAD_GETFUNC(h, n) GetProcAddress(h, n)
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#define DYNLOAD_GETERROR() GetLastError()
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#else
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#include <dlfcn.h>
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#define DYNLOAD_DEFPATH "unicorn.so"
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#define DYNLOAD_HANDLE void*
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#define DYNLOAD_LOADLIB(path, f)dlopen(path, f)
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#define DYNLOAD_FREELIB(handle) dlclose(handle)
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#define DYNLOAD_GETFUNC(h, n) dlsym(h, n)
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#define DYNLOAD_GETERROR() dlerror()
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#endif
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static DYNLOAD_HANDLE g_dyn_handle = NULL;
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typedef unsigned int (*uc_version_t)(unsigned int *major, unsigned int *minor);
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typedef bool (*uc_arch_supported_t)(uc_arch arch);
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typedef uc_err (*uc_open_t)(uc_arch arch, uc_mode mode, uc_engine **uc);
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typedef uc_err (*uc_close_t)(uc_engine *uc);
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typedef uc_err (*uc_query_t)(uc_engine *uc, uc_query_type type, size_t *result);
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typedef uc_err (*uc_errno_t)(uc_engine *uc);
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typedef const char* (*uc_strerror_t)(uc_err code);
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typedef uc_err (*uc_reg_write_t)(uc_engine *uc, int regid, const void *value);
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typedef uc_err (*uc_reg_read_t)(uc_engine *uc, int regid, void *value);
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typedef uc_err (*uc_mem_write_t)(uc_engine *uc, uint64_t address, const void *bytes, size_t size);
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typedef uc_err (*uc_mem_read_t)(uc_engine *uc, uint64_t address, void *bytes, size_t size);
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typedef uc_err (*uc_emu_start_t)(uc_engine *uc, uint64_t begin, uint64_t until, uint64_t timeout, size_t count);
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typedef uc_err (*uc_emu_stop_t)(uc_engine *uc);
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typedef uc_err (*uc_hook_add_t)(uc_engine *uc, uc_hook *hh, int type, void *callback, void *user_data, uint64_t begin, uint64_t end, ...);
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typedef uc_err (*uc_hook_del_t)(uc_engine *uc, uc_hook hh);
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typedef uc_err (*uc_mem_map_t)(uc_engine *uc, uint64_t address, size_t size, uint32_t perms);
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typedef uc_err (*uc_mem_map_ptr_t)(uc_engine *uc, uint64_t address, size_t size, uint32_t perms, void *ptr);
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typedef uc_err (*uc_mem_unmap_t)(uc_engine *uc, uint64_t address, size_t size);
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typedef uc_err (*uc_mem_protect_t)(uc_engine *uc, uint64_t address, size_t size, uint32_t perms);
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typedef uc_err (*uc_mem_regions_t)(uc_engine *uc, uc_mem_region **regions, uint32_t *count);
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static uc_version_t gp_uc_version = NULL;
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static uc_arch_supported_t gp_uc_arch_supported = NULL;
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static uc_open_t gp_uc_open = NULL;
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static uc_close_t gp_uc_close = NULL;
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static uc_query_t gp_uc_query = NULL;
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static uc_errno_t gp_uc_errno = NULL;
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static uc_strerror_t gp_uc_strerror = NULL;
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static uc_reg_write_t gp_uc_reg_write = NULL;
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static uc_reg_read_t gp_uc_reg_read = NULL;
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static uc_mem_write_t gp_uc_mem_write = NULL;
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static uc_mem_read_t gp_uc_mem_read = NULL;
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static uc_emu_start_t gp_uc_emu_start = NULL;
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static uc_emu_stop_t gp_uc_emu_stop = NULL;
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static uc_hook_add_t gp_uc_hook_add = NULL;
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static uc_hook_del_t gp_uc_hook_del = NULL;
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static uc_mem_map_t gp_uc_mem_map = NULL;
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static uc_mem_map_ptr_t gp_uc_mem_map_ptr = NULL;
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static uc_mem_unmap_t gp_uc_mem_unmap = NULL;
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static uc_mem_protect_t gp_uc_mem_protect = NULL;
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static uc_mem_regions_t gp_uc_mem_regions = NULL;
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bool uc_dyn_load(const char* path, int flags)
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{
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if (path == NULL) {
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path = DYNLOAD_DEFPATH;
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}
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if (g_dyn_handle) {
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if (!uc_dyn_free())
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return false;
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}
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g_dyn_handle = DYNLOAD_LOADLIB(path, flags);
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if (g_dyn_handle == NULL) {
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//int err = DYNLOAD_GETERROR();
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//printf("Error loading %s: Last error is %X\n", path, err);
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return false;
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}
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gp_uc_version = (uc_version_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_version");
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gp_uc_arch_supported = (uc_arch_supported_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_arch_supported");
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gp_uc_open = (uc_open_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_open");
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gp_uc_close = (uc_close_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_close");
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gp_uc_query = (uc_query_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_query");
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gp_uc_errno = (uc_errno_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_errno");
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gp_uc_strerror = (uc_strerror_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_strerror");
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gp_uc_reg_write = (uc_reg_write_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_reg_write");
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gp_uc_reg_read = (uc_reg_read_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_reg_read");
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gp_uc_mem_write = (uc_mem_write_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_mem_write");
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gp_uc_mem_read = (uc_mem_read_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_mem_read");
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gp_uc_emu_start = (uc_emu_start_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_emu_start");
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gp_uc_emu_stop = (uc_emu_stop_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_emu_stop");
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gp_uc_hook_add = (uc_hook_add_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_hook_add");
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gp_uc_hook_del = (uc_hook_del_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_hook_del");
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gp_uc_mem_map = (uc_mem_map_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_mem_map");
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gp_uc_mem_map_ptr = (uc_mem_map_ptr_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_mem_map_ptr");
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gp_uc_mem_unmap = (uc_mem_unmap_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_mem_unmap");
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gp_uc_mem_protect = (uc_mem_protect_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_mem_protect");
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gp_uc_mem_regions = (uc_mem_regions_t)DYNLOAD_GETFUNC(g_dyn_handle, "uc_mem_regions");
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return true;
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}
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bool uc_dyn_free(void)
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{
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if (g_dyn_handle==NULL)
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return true;
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DYNLOAD_FREELIB(g_dyn_handle);
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g_dyn_handle = NULL;
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gp_uc_version = NULL;
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gp_uc_arch_supported = NULL;
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gp_uc_open = NULL;
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gp_uc_close = NULL;
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gp_uc_query = NULL;
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gp_uc_errno = NULL;
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gp_uc_strerror = NULL;
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gp_uc_reg_write = NULL;
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gp_uc_reg_read = NULL;
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gp_uc_mem_write = NULL;
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gp_uc_mem_read = NULL;
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gp_uc_emu_start = NULL;
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gp_uc_emu_stop = NULL;
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gp_uc_hook_add = NULL;
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gp_uc_hook_del = NULL;
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gp_uc_mem_map = NULL;
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gp_uc_mem_map_ptr = NULL;
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gp_uc_mem_unmap = NULL;
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gp_uc_mem_protect = NULL;
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gp_uc_mem_regions = NULL;
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return true;
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}
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unsigned int uc_version(unsigned int *major, unsigned int *minor)
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{
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return gp_uc_version(major, minor);
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}
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bool uc_arch_supported(uc_arch arch)
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{
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return gp_uc_arch_supported(arch);
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}
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uc_err uc_open(uc_arch arch, uc_mode mode, uc_engine **uc)
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{
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return gp_uc_open(arch, mode, uc);
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}
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uc_err uc_close(uc_engine *uc)
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{
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return gp_uc_close(uc);
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}
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uc_err uc_query(uc_engine *uc, uc_query_type type, size_t *result)
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{
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return gp_uc_query(uc, type, result);
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}
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uc_err uc_errno(uc_engine *uc)
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{
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return gp_uc_errno(uc);
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}
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const char *uc_strerror(uc_err code)
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{
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return gp_uc_strerror(code);
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}
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uc_err uc_reg_write(uc_engine *uc, int regid, const void *value)
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{
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return gp_uc_reg_write(uc, regid, value);
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}
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uc_err uc_reg_read(uc_engine *uc, int regid, void *value)
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{
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return gp_uc_reg_read(uc, regid, value);
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}
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uc_err uc_mem_write(uc_engine *uc, uint64_t address, const void *bytes, size_t size)
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{
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return gp_uc_mem_write(uc, address, bytes, size);
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}
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uc_err uc_mem_read(uc_engine *uc, uint64_t address, void *bytes, size_t size)
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{
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return gp_uc_mem_read(uc, address, bytes, size);
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}
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uc_err uc_emu_start(uc_engine *uc, uint64_t begin, uint64_t until, uint64_t timeout, size_t count)
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{
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return gp_uc_emu_start(uc, begin, until, timeout, count);
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}
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uc_err uc_emu_stop(uc_engine *uc)
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{
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return gp_uc_emu_stop(uc);
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}
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uc_err uc_hook_add(uc_engine *uc, uc_hook *hh, int type, void *callback, void *user_data, uint64_t begin, uint64_t end, ...)
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{
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va_list valist;
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uc_err ret = UC_ERR_OK;
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int id;
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va_start(valist, user_data);
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switch(type) {
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// note this default case will capture any combinations of
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// UC_HOOK_MEM_*_PROT and UC_HOOK_MEM_*_UNMAPPED
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// as well as any combination of
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// UC_HOOK_MEM_READ, UC_HOOK_MEM_WRITE and UC_HOOK_MEM_FETCH
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default:
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case UC_HOOK_INTR:
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case UC_HOOK_CODE:
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case UC_HOOK_BLOCK:
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// all combinations of UC_HOOK_MEM_*_PROT and UC_HOOK_MEM_*_UNMAPPED are caught by 'default'
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case UC_HOOK_MEM_READ_UNMAPPED:
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case UC_HOOK_MEM_WRITE_UNMAPPED:
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case UC_HOOK_MEM_FETCH_UNMAPPED:
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case UC_HOOK_MEM_READ_PROT:
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case UC_HOOK_MEM_WRITE_PROT:
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case UC_HOOK_MEM_FETCH_PROT:
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// all combinations of read/write/fetch are caught by 'default'
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case UC_HOOK_MEM_READ:
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case UC_HOOK_MEM_WRITE:
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case UC_HOOK_MEM_FETCH:
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// 0 extra args
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ret = gp_uc_hook_add(uc, hh, type, callback, user_data, begin, end);
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break;
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case UC_HOOK_INSN:
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// 1 extra arg
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id = va_arg(valist, int);
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ret = gp_uc_hook_add(uc, hh, type, callback, user_data, begin, end, id);
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break;
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}
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va_end(valist);
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return ret;
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}
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uc_err uc_hook_del(uc_engine *uc, uc_hook hh)
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{
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return gp_uc_hook_del(uc, hh);
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}
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uc_err uc_mem_map(uc_engine *uc, uint64_t address, size_t size, uint32_t perms)
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{
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return gp_uc_mem_map(uc, address, size, perms);
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}
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uc_err uc_mem_map_ptr(uc_engine *uc, uint64_t address, size_t size, uint32_t perms, void *ptr)
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{
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return gp_uc_mem_map_ptr(uc, address, size, perms, ptr);
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}
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uc_err uc_mem_unmap(uc_engine *uc, uint64_t address, size_t size)
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{
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return gp_uc_mem_unmap(uc, address, size);
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}
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uc_err uc_mem_protect(uc_engine *uc, uint64_t address, size_t size, uint32_t perms)
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{
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return gp_uc_mem_protect(uc, address, size, perms);
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}
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uc_err uc_mem_regions(uc_engine *uc, uc_mem_region **regions, uint32_t *count)
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{
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return gp_uc_mem_regions(uc, regions, count);
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}
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#endif // DYNLOAD
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