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https://github.com/yuzu-emu/unicorn.git
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77f946f2fc
This lets you import the pre-built unicorn.dll files with Microsoft Visual C++ projects. There is support for static and dynamic linking of dlls. This has been tested as working for both 32bit and 64bit versions. The dynamic linking code should also work in Linux, though I have not tested it.
250 lines
8.7 KiB
C
250 lines
8.7 KiB
C
//
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// Dynamic loader for unicorn shared library in windows and linux.
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// This was made for v0.9 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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// 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/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_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, ...);
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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_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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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_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_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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bool uc_dyn_load(const char* path, int flags)
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{
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if( path == NULL )
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{
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path = DYNLOAD_DEFPATH;
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}
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if( g_dyn_handle )
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{
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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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{
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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_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_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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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_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_unmap = NULL;
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gp_uc_mem_protect = 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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{ return gp_uc_version(major, minor); }
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bool uc_arch_supported(uc_arch arch)
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{ return gp_uc_arch_supported(arch); }
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uc_err uc_open(uc_arch arch, uc_mode mode, uc_engine **uc)
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{ return gp_uc_open(arch, mode, uc); }
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uc_err uc_close(uc_engine *uc)
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{ return gp_uc_close(uc); }
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uc_err uc_errno(uc_engine *uc)
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{ return gp_uc_errno(uc); }
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const char *uc_strerror(uc_err code)
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{ return gp_uc_strerror(code); }
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uc_err uc_reg_write(uc_engine *uc, int regid, const void *value)
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{ return gp_uc_reg_write(uc, regid, value); }
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uc_err uc_reg_read(uc_engine *uc, int regid, void *value)
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{ return gp_uc_reg_read(uc, regid, value); }
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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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{ return gp_uc_mem_write(uc, address, bytes, size); }
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uc_err uc_mem_read(uc_engine *uc, uint64_t address, void *bytes, size_t size)
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{ return gp_uc_mem_read(uc, address, bytes, size); }
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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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{ return gp_uc_emu_start(uc, begin, until, timeout, count); }
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uc_err uc_emu_stop(uc_engine *uc)
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{ return gp_uc_emu_stop(uc); }
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uc_err uc_hook_add(uc_engine *uc, uc_hook *hh, int type, void *callback, void *user_data, ...)
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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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uint64_t begin, end;
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va_start(valist, user_data);
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switch(type) {
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default:
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break;
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case UC_HOOK_INTR:
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// 0 extra args
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ret = gp_uc_hook_add(uc, hh, type, callback, user_data);
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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, id);
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break;
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case UC_HOOK_CODE:
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case UC_HOOK_BLOCK:
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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_READ | UC_HOOK_MEM_WRITE:
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// 2 extra arg
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begin = va_arg(valist, uint64_t);
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end = va_arg(valist, uint64_t);
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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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}
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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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{ return gp_uc_hook_del(uc, hh); }
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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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{ return gp_uc_mem_map(uc, address, size, perms); }
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uc_err uc_mem_unmap(uc_engine *uc, uint64_t address, size_t size)
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{ return gp_uc_mem_unmap(uc, address, size); }
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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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{ return gp_uc_mem_protect(uc, address, size, perms); }
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