/* * Stack walking * * Copyright 1995 Alexandre Julliard * Copyright 1996 Eric Youngdale * Copyright 1999 Ove Kåven * Copyright 2004 Eric Pouech * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include <stdlib.h> #include <stdio.h> #include <string.h> #include <assert.h> #include "dbghelp_private.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(dbghelp); static DWORD64 WINAPI addr_to_linear(HANDLE hProcess, HANDLE hThread, ADDRESS64* addr) { LDT_ENTRY le; switch (addr->Mode) { case AddrMode1616: if (GetThreadSelectorEntry(hThread, addr->Segment, &le)) return (le.HighWord.Bits.BaseHi << 24) + (le.HighWord.Bits.BaseMid << 16) + le.BaseLow + LOWORD(addr->Offset); break; case AddrMode1632: if (GetThreadSelectorEntry(hThread, addr->Segment, &le)) return (le.HighWord.Bits.BaseHi << 24) + (le.HighWord.Bits.BaseMid << 16) + le.BaseLow + addr->Offset; break; case AddrModeReal: return (DWORD)(LOWORD(addr->Segment) << 4) + addr->Offset; case AddrModeFlat: return addr->Offset; default: FIXME("Unsupported (yet) mode (%x)\n", addr->Mode); return 0; } FIXME("Failed to linearize address %04x:%s (mode %x)\n", addr->Segment, wine_dbgstr_longlong(addr->Offset), addr->Mode); return 0; } static BOOL CALLBACK read_mem(HANDLE hProcess, DWORD addr, void* buffer, DWORD size, LPDWORD nread) { SIZE_T r; if (!ReadProcessMemory(hProcess, (void*)(DWORD_PTR)addr, buffer, size, &r)) return FALSE; if (nread) *nread = r; return TRUE; } static BOOL CALLBACK read_mem64(HANDLE hProcess, DWORD64 addr, void* buffer, DWORD size, LPDWORD nread) { SIZE_T r; if (!ReadProcessMemory(hProcess, (void*)(DWORD_PTR)addr, buffer, size, &r)) return FALSE; if (nread) *nread = r; return TRUE; } static inline void addr_32to64(const ADDRESS* addr32, ADDRESS64* addr64) { addr64->Offset = (ULONG64)addr32->Offset; addr64->Segment = addr32->Segment; addr64->Mode = addr32->Mode; } static inline void addr_64to32(const ADDRESS64* addr64, ADDRESS* addr32) { addr32->Offset = (ULONG)addr64->Offset; addr32->Segment = addr64->Segment; addr32->Mode = addr64->Mode; } BOOL sw_read_mem(struct cpu_stack_walk* csw, DWORD64 addr, void* ptr, DWORD sz) { DWORD bytes_read = 0; if (csw->is32) return csw->u.s32.f_read_mem(csw->hProcess, addr, ptr, sz, &bytes_read); else return csw->u.s64.f_read_mem(csw->hProcess, addr, ptr, sz, &bytes_read); } DWORD64 sw_xlat_addr(struct cpu_stack_walk* csw, ADDRESS64* addr) { if (addr->Mode == AddrModeFlat) return addr->Offset; if (csw->is32) { ADDRESS addr32; addr_64to32(addr, &addr32); return csw->u.s32.f_xlat_adr(csw->hProcess, csw->hThread, &addr32); } else if (csw->u.s64.f_xlat_adr) return csw->u.s64.f_xlat_adr(csw->hProcess, csw->hThread, addr); return addr_to_linear(csw->hProcess, csw->hThread, addr); } void* sw_table_access(struct cpu_stack_walk* csw, DWORD64 addr) { if (csw->is32) return csw->u.s32.f_tabl_acs(csw->hProcess, addr); else return csw->u.s64.f_tabl_acs(csw->hProcess, addr); } DWORD64 sw_module_base(struct cpu_stack_walk* csw, DWORD64 addr) { if (csw->is32) return csw->u.s32.f_modl_bas(csw->hProcess, addr); else return csw->u.s64.f_modl_bas(csw->hProcess, addr); } /*********************************************************************** * StackWalk (DBGHELP.@) */ BOOL WINAPI StackWalk(DWORD MachineType, HANDLE hProcess, HANDLE hThread, LPSTACKFRAME frame32, PVOID ctx, PREAD_PROCESS_MEMORY_ROUTINE f_read_mem, PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine, PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine, PTRANSLATE_ADDRESS_ROUTINE f_xlat_adr) { struct cpu_stack_walk csw; STACKFRAME64 frame64; BOOL ret; struct cpu* cpu; TRACE("(%d, %p, %p, %p, %p, %p, %p, %p, %p)\n", MachineType, hProcess, hThread, frame32, ctx, f_read_mem, FunctionTableAccessRoutine, GetModuleBaseRoutine, f_xlat_adr); if (!(cpu = cpu_find(MachineType))) { SetLastError(ERROR_INVALID_PARAMETER); return FALSE; } addr_32to64(&frame32->AddrPC, &frame64.AddrPC); addr_32to64(&frame32->AddrReturn, &frame64.AddrReturn); addr_32to64(&frame32->AddrFrame, &frame64.AddrFrame); addr_32to64(&frame32->AddrStack, &frame64.AddrStack); addr_32to64(&frame32->AddrBStore, &frame64.AddrBStore); frame64.FuncTableEntry = frame32->FuncTableEntry; /* FIXME */ frame64.Far = frame32->Far; frame64.Virtual = frame32->Virtual; frame64.Reserved[0] = frame32->Reserved[0]; frame64.Reserved[1] = frame32->Reserved[1]; frame64.Reserved[2] = frame32->Reserved[2]; /* we don't handle KdHelp */ csw.hProcess = hProcess; csw.hThread = hThread; csw.is32 = TRUE; /* sigh... MS isn't even consistent in the func prototypes */ csw.u.s32.f_read_mem = (f_read_mem) ? f_read_mem : read_mem; csw.u.s32.f_xlat_adr = f_xlat_adr; csw.u.s32.f_tabl_acs = (FunctionTableAccessRoutine) ? FunctionTableAccessRoutine : SymFunctionTableAccess; csw.u.s32.f_modl_bas = (GetModuleBaseRoutine) ? GetModuleBaseRoutine : SymGetModuleBase; if ((ret = cpu->stack_walk(&csw, &frame64, ctx))) { addr_64to32(&frame64.AddrPC, &frame32->AddrPC); addr_64to32(&frame64.AddrReturn, &frame32->AddrReturn); addr_64to32(&frame64.AddrFrame, &frame32->AddrFrame); addr_64to32(&frame64.AddrStack, &frame32->AddrStack); addr_64to32(&frame64.AddrBStore, &frame32->AddrBStore); frame32->FuncTableEntry = frame64.FuncTableEntry; /* FIXME */ frame32->Params[0] = frame64.Params[0]; frame32->Params[1] = frame64.Params[1]; frame32->Params[2] = frame64.Params[2]; frame32->Params[3] = frame64.Params[3]; frame32->Far = frame64.Far; frame32->Virtual = frame64.Virtual; frame32->Reserved[0] = frame64.Reserved[0]; frame32->Reserved[1] = frame64.Reserved[1]; frame32->Reserved[2] = frame64.Reserved[2]; } return ret; } /*********************************************************************** * StackWalk64 (DBGHELP.@) */ BOOL WINAPI StackWalk64(DWORD MachineType, HANDLE hProcess, HANDLE hThread, LPSTACKFRAME64 frame, PVOID ctx, PREAD_PROCESS_MEMORY_ROUTINE64 f_read_mem, PFUNCTION_TABLE_ACCESS_ROUTINE64 FunctionTableAccessRoutine, PGET_MODULE_BASE_ROUTINE64 GetModuleBaseRoutine, PTRANSLATE_ADDRESS_ROUTINE64 f_xlat_adr) { struct cpu_stack_walk csw; struct cpu* cpu; TRACE("(%d, %p, %p, %p, %p, %p, %p, %p, %p)\n", MachineType, hProcess, hThread, frame, ctx, f_read_mem, FunctionTableAccessRoutine, GetModuleBaseRoutine, f_xlat_adr); if (!(cpu = cpu_find(MachineType))) { SetLastError(ERROR_INVALID_PARAMETER); return FALSE; } csw.hProcess = hProcess; csw.hThread = hThread; csw.is32 = FALSE; /* sigh... MS isn't even consistent in the func prototypes */ csw.u.s64.f_read_mem = (f_read_mem) ? f_read_mem : read_mem64; csw.u.s64.f_xlat_adr = (f_xlat_adr) ? f_xlat_adr : addr_to_linear; csw.u.s64.f_tabl_acs = (FunctionTableAccessRoutine) ? FunctionTableAccessRoutine : SymFunctionTableAccess64; csw.u.s64.f_modl_bas = (GetModuleBaseRoutine) ? GetModuleBaseRoutine : SymGetModuleBase64; if (!cpu->stack_walk(&csw, frame, ctx)) return FALSE; /* we don't handle KdHelp */ return TRUE; } /****************************************************************** * SymRegisterFunctionEntryCallback (DBGHELP.@) * * */ BOOL WINAPI SymRegisterFunctionEntryCallback(HANDLE hProc, PSYMBOL_FUNCENTRY_CALLBACK cb, PVOID user) { FIXME("(%p %p %p): stub!\n", hProc, cb, user); SetLastError(ERROR_CALL_NOT_IMPLEMENTED); return FALSE; } /****************************************************************** * SymRegisterFunctionEntryCallback64 (DBGHELP.@) * * */ BOOL WINAPI SymRegisterFunctionEntryCallback64(HANDLE hProc, PSYMBOL_FUNCENTRY_CALLBACK64 cb, ULONG64 user) { FIXME("(%p %p %s): stub!\n", hProc, cb, wine_dbgstr_longlong(user)); SetLastError(ERROR_CALL_NOT_IMPLEMENTED); return FALSE; }