483 lines
14 KiB
C
483 lines
14 KiB
C
/* -*- tab-width: 8; c-basic-offset: 4 -*- */
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/*
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* File module.c - module handling for the wine debugger
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*
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* Copyright (C) 1993, Eric Youngdale.
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* 2000, Eric Pouech
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "neexe.h"
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#include "module.h"
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#include "file.h"
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#include "debugger.h"
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#include "toolhelp.h"
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#include "wingdi.h"
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#include "winuser.h"
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/***********************************************************************
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* Creates and links a new module to the current process
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*
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*/
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DBG_MODULE* DEBUG_AddModule(const char* name, int type,
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void* mod_addr, HMODULE hmodule)
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{
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DBG_MODULE* wmod;
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if (!(wmod = (DBG_MODULE*)DBG_alloc(sizeof(*wmod))))
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return NULL;
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memset(wmod, 0, sizeof(*wmod));
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wmod->next = DEBUG_CurrProcess->modules;
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wmod->status = DM_STATUS_NEW;
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wmod->type = type;
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wmod->load_addr = mod_addr;
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wmod->handle = hmodule;
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wmod->dbg_index = DEBUG_CurrProcess->next_index;
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wmod->module_name = DBG_strdup(name);
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DEBUG_CurrProcess->modules = wmod;
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return wmod;
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}
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/***********************************************************************
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* DEBUG_FindModuleByName
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*
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*/
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DBG_MODULE* DEBUG_FindModuleByName(const char* name, int type)
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{
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DBG_MODULE* wmod;
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for (wmod = DEBUG_CurrProcess->modules; wmod; wmod = wmod->next) {
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if ((type == DM_TYPE_UNKNOWN || type == wmod->type) &&
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!strcasecmp(name, wmod->module_name)) break;
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}
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return wmod;
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}
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/***********************************************************************
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* DEBUG_FindModuleByAddr
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*
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* either the addr where module is loaded, or any address inside the
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* module
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*/
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DBG_MODULE* DEBUG_FindModuleByAddr(void* addr, int type)
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{
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DBG_MODULE* wmod;
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DBG_MODULE* res = NULL;
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for (wmod = DEBUG_CurrProcess->modules; wmod; wmod = wmod->next) {
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if ((type == DM_TYPE_UNKNOWN || type == wmod->type) &&
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(u_long)addr >= (u_long)wmod->load_addr &&
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(!res || res->load_addr < wmod->load_addr))
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res = wmod;
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}
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return res;
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}
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/***********************************************************************
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* DEBUG_FindModuleByHandle
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*/
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DBG_MODULE* DEBUG_FindModuleByHandle(HANDLE handle, int type)
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{
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DBG_MODULE* wmod;
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for (wmod = DEBUG_CurrProcess->modules; wmod; wmod = wmod->next) {
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if ((type == DM_TYPE_UNKNOWN || type == wmod->type) && handle == wmod->handle) break;
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}
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return wmod;
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}
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/***********************************************************************
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* DEBUG_RegisterELFModule
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*
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* ELF modules are also entered into the list - this is so that we
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* can make 'info shared' types of displays possible.
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*/
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DBG_MODULE* DEBUG_RegisterELFModule(u_long load_addr, const char* name)
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{
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DBG_MODULE* wmod = DEBUG_AddModule(name, DM_TYPE_ELF, (void*)load_addr, 0);
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if (!wmod) return NULL;
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wmod->status = DM_STATUS_LOADED;
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DEBUG_CurrProcess->next_index++;
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return wmod;
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}
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/***********************************************************************
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* DEBUG_RegisterPEModule
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*
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*/
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DBG_MODULE* DEBUG_RegisterPEModule(HMODULE hModule, u_long load_addr, const char *module_name)
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{
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DBG_MODULE* wmod = DEBUG_AddModule(module_name, DM_TYPE_PE, (void*)load_addr, hModule);
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if (!wmod) return NULL;
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DEBUG_CurrProcess->next_index++;
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return wmod;
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}
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/***********************************************************************
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* DEBUG_RegisterNEModule
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*
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*/
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DBG_MODULE* DEBUG_RegisterNEModule(HMODULE hModule, void* load_addr, const char *module_name)
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{
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DBG_MODULE* wmod = DEBUG_AddModule(module_name, DM_TYPE_NE, load_addr, hModule);
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if (!wmod) return NULL;
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wmod->status = DM_STATUS_LOADED;
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DEBUG_CurrProcess->next_index++;
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return wmod;
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}
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/***********************************************************************
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* DEBUG_GetEP16
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*
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* Helper function fo DEBUG_LoadModuleEPs16:
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* finds the address of a given entry point from a given module
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*/
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static BOOL DEBUG_GetEP16(char* moduleAddr, const NE_MODULE* module,
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WORD ordinal, DBG_ADDR* addr)
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{
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void* idx;
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ET_ENTRY entry;
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ET_BUNDLE bundle;
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SEGTABLEENTRY ste;
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bundle.next = module->entry_table;
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do {
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if (!bundle.next)
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return FALSE;
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idx = moduleAddr + bundle.next;
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if (!DEBUG_READ_MEM_VERBOSE(idx, &bundle, sizeof(bundle)))
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return FALSE;
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} while ((ordinal < bundle.first + 1) || (ordinal > bundle.last));
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if (!DEBUG_READ_MEM_VERBOSE((char*)idx + sizeof(ET_BUNDLE) +
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(ordinal - bundle.first - 1) * sizeof(ET_ENTRY),
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&entry, sizeof(ET_ENTRY)))
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return FALSE;
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addr->seg = entry.segnum;
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addr->off = entry.offs;
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if (addr->seg == 0xfe) addr->seg = 0xffff; /* constant entry */
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else {
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if (!DEBUG_READ_MEM_VERBOSE(moduleAddr + module->seg_table +
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sizeof(ste) * (addr->seg - 1),
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&ste, sizeof(ste)))
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return FALSE;
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addr->seg = GlobalHandleToSel16(ste.hSeg);
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}
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return TRUE;
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}
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/***********************************************************************
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* DEBUG_LoadModule16
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*
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* Load the entry points of a Win16 module into the hash table.
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*/
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static void DEBUG_LoadModule16(HMODULE hModule, NE_MODULE* module, char* moduleAddr, const char* name)
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{
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DBG_VALUE value;
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BYTE buf[1 + 256 + 2];
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char epname[512];
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char* cpnt;
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DBG_MODULE* wmod;
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wmod = DEBUG_RegisterNEModule(hModule, moduleAddr, name);
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value.type = NULL;
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value.cookie = DV_TARGET;
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value.addr.seg = 0;
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value.addr.off = 0;
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cpnt = moduleAddr + module->name_table;
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/* First search the resident names */
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/* skip module name */
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if (!DEBUG_READ_MEM_VERBOSE(cpnt, buf, sizeof(buf)) || !buf[0])
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return;
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cpnt += 1 + buf[0] + sizeof(WORD);
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while (DEBUG_READ_MEM_VERBOSE(cpnt, buf, sizeof(buf)) && buf[0]) {
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sprintf(epname, "%s.%.*s", name, buf[0], &buf[1]);
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if (DEBUG_GetEP16(moduleAddr, module, *(WORD*)&buf[1 + buf[0]], &value.addr)) {
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DEBUG_AddSymbol(epname, &value, NULL, SYM_WIN32 | SYM_FUNC);
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}
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cpnt += buf[0] + 1 + sizeof(WORD);
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}
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/* Now search the non-resident names table */
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if (!module->nrname_handle) return; /* No non-resident table */
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cpnt = (char *)GlobalLock16(module->nrname_handle);
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while (DEBUG_READ_MEM_VERBOSE(cpnt, buf, sizeof(buf)) && buf[0]) {
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sprintf(epname, "%s.%.*s", name, buf[0], &buf[1]);
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if (DEBUG_GetEP16(moduleAddr, module, *(WORD*)&buf[1 + buf[0]], &value.addr)) {
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DEBUG_AddSymbol(epname, &value, NULL, SYM_WIN32 | SYM_FUNC);
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}
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cpnt += buf[0] + 1 + sizeof(WORD);
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}
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GlobalUnlock16(module->nrname_handle);
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}
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/***********************************************************************
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* DEBUG_LoadModule32
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*/
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void DEBUG_LoadModule32(const char* name, HANDLE hFile, DWORD base)
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{
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DBG_VALUE value;
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char buffer[512];
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char bufstr[256];
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int i;
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IMAGE_NT_HEADERS pe_header;
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DWORD pe_header_ofs;
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IMAGE_SECTION_HEADER pe_seg;
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DWORD pe_seg_ofs;
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IMAGE_DATA_DIRECTORY dir;
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DWORD dir_ofs;
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DBG_MODULE* wmod;
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/* FIXME: we make the assumption that hModule == base */
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wmod = DEBUG_RegisterPEModule((HMODULE)base, base, name);
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DEBUG_Printf(DBG_CHN_TRACE, "Registring 32bit DLL '%s' at %08lx\n", name, base);
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value.type = NULL;
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value.cookie = DV_TARGET;
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value.addr.seg = 0;
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value.addr.off = 0;
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/* grab PE Header */
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if (!DEBUG_READ_MEM_VERBOSE((void*)(base + OFFSET_OF(IMAGE_DOS_HEADER, e_lfanew)),
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&pe_header_ofs, sizeof(pe_header_ofs)) ||
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!DEBUG_READ_MEM_VERBOSE((void*)(base + pe_header_ofs),
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&pe_header, sizeof(pe_header)))
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return;
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if (wmod) {
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DEBUG_RegisterStabsDebugInfo(wmod, hFile, &pe_header, pe_header_ofs);
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DEBUG_RegisterMSCDebugInfo(wmod, hFile, &pe_header, pe_header_ofs);
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}
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/* Add start of DLL */
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value.addr.off = base;
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DEBUG_AddSymbol(name, &value, NULL, SYM_WIN32 | SYM_FUNC);
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/* Add entry point */
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wsnprintf(buffer, sizeof(buffer), "%s.EntryPoint", name);
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value.addr.off = base + pe_header.OptionalHeader.AddressOfEntryPoint;
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DEBUG_AddSymbol(buffer, &value, NULL, SYM_WIN32 | SYM_FUNC);
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/* Add start of sections */
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pe_seg_ofs = pe_header_ofs + OFFSET_OF(IMAGE_NT_HEADERS, OptionalHeader) +
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pe_header.FileHeader.SizeOfOptionalHeader;
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for (i = 0; i < pe_header.FileHeader.NumberOfSections; i++, pe_seg_ofs += sizeof(pe_seg)) {
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if (!DEBUG_READ_MEM_VERBOSE((void*)(base + pe_seg_ofs), &pe_seg, sizeof(pe_seg)))
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continue;
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wsnprintf(buffer, sizeof(buffer), "%s.%s", name, pe_seg.Name);
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value.addr.off = base + pe_seg.VirtualAddress;
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DEBUG_AddSymbol(buffer, &value, NULL, SYM_WIN32 | SYM_FUNC);
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}
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/* Add exported functions */
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dir_ofs = pe_header_ofs +
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OFFSET_OF(IMAGE_NT_HEADERS,
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OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT]);
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if (DEBUG_READ_MEM_VERBOSE((void*)(base + dir_ofs), &dir, sizeof(dir)) && dir.Size) {
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IMAGE_EXPORT_DIRECTORY exports;
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WORD* ordinals = NULL;
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void** functions = NULL;
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DWORD* names = NULL;
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int j;
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if (DEBUG_READ_MEM_VERBOSE((void*)(base + dir.VirtualAddress),
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&exports, sizeof(exports)) &&
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((functions = DBG_alloc(sizeof(functions[0]) * exports.NumberOfFunctions))) &&
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DEBUG_READ_MEM_VERBOSE((void*)(base + (DWORD)exports.AddressOfFunctions),
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functions, sizeof(functions[0]) * exports.NumberOfFunctions) &&
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((ordinals = DBG_alloc(sizeof(ordinals[0]) * exports.NumberOfNames))) &&
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DEBUG_READ_MEM_VERBOSE((void*)(base + (DWORD)exports.AddressOfNameOrdinals),
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ordinals, sizeof(ordinals[0]) * exports.NumberOfNames) &&
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((names = DBG_alloc(sizeof(names[0]) * exports.NumberOfNames))) &&
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DEBUG_READ_MEM_VERBOSE((void*)(base + (DWORD)exports.AddressOfNames),
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names, sizeof(names[0]) * exports.NumberOfNames)) {
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for (i = 0; i < exports.NumberOfNames; i++) {
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if (!names[i] ||
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!DEBUG_READ_MEM_VERBOSE((void*)(base + names[i]), bufstr, sizeof(bufstr)))
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continue;
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bufstr[sizeof(bufstr) - 1] = 0;
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wsnprintf(buffer, sizeof(buffer), "%s.%s", name, bufstr);
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value.addr.off = base + (DWORD)functions[ordinals[i]];
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DEBUG_AddSymbol(buffer, &value, NULL, SYM_WIN32 | SYM_FUNC);
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}
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for (i = 0; i < exports.NumberOfFunctions; i++) {
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if (!functions[i]) continue;
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/* Check if we already added it with a name */
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for (j = 0; j < exports.NumberOfNames; j++)
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if ((ordinals[j] == i) && names[j]) break;
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if (j < exports.NumberOfNames) continue;
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wsnprintf(buffer, sizeof(buffer), "%s.%ld", name, i + exports.Base);
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value.addr.off = base + (DWORD)functions[i];
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DEBUG_AddSymbol(buffer, &value, NULL, SYM_WIN32 | SYM_FUNC);
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}
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}
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DBG_free(functions);
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DBG_free(ordinals);
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DBG_free(names);
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}
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}
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/***********************************************************************
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* DEBUG_LoadEntryPoints
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*
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* Load the entry points of all the modules into the hash table.
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*/
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int DEBUG_LoadEntryPoints(const char* pfx)
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{
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MODULEENTRY entry;
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NE_MODULE module;
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void* moduleAddr;
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int first = 0;
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int rowcount = 0;
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int len;
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/* FIXME: we assume that a module is never removed from memory */
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/* FIXME: this is (currently plain wrong when debugger is started by
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* attaching to an existing program => the 16 bit modules will
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* not be shared... not much to do on debugger side... sigh
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*/
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if (ModuleFirst16(&entry)) do {
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if (DEBUG_FindModuleByName(entry.szModule, DM_TYPE_UNKNOWN) ||
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!(moduleAddr = NE_GetPtr(entry.hModule)) ||
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!DEBUG_READ_MEM_VERBOSE(moduleAddr, &module, sizeof(module)) ||
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(module.flags & NE_FFLAGS_WIN32) /* NE module */)
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continue;
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if (!first) {
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if (pfx) DEBUG_Printf(DBG_CHN_MESG, pfx);
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DEBUG_Printf(DBG_CHN_MESG, " ");
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rowcount = 3 + (pfx ? strlen(pfx) : 0);
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first = 1;
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}
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len = strlen(entry.szModule);
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if ((rowcount + len) > 76) {
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DEBUG_Printf(DBG_CHN_MESG, "\n ");
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rowcount = 3;
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}
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DEBUG_Printf(DBG_CHN_MESG, " %s", entry.szModule);
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rowcount += len + 1;
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DEBUG_LoadModule16(entry.hModule, &module, moduleAddr, entry.szModule);
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} while (ModuleNext16(&entry));
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if (first) DEBUG_Printf(DBG_CHN_MESG, "\n");
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return first;
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}
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/***********************************************************************
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* DEBUG_InfoShare
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*
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* Display shared libarary information.
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*/
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void DEBUG_InfoShare(void)
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{
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DBG_MODULE* wmod;
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const char* xtype;
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DEBUG_Printf(DBG_CHN_MESG, "Address\t\tModule\tName\n");
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for (wmod = DEBUG_CurrProcess->modules; wmod; wmod = wmod->next) {
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switch (wmod->type) {
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case DM_TYPE_NE: xtype = "NE"; break;
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case DM_TYPE_PE: xtype = "PE"; break;
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case DM_TYPE_ELF: xtype = "ELF"; break;
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default: xtype = "???"; break;
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}
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DEBUG_Printf(DBG_CHN_MESG, "0x%8.8x\t(%s)\t%s\n", (unsigned int)wmod->load_addr,
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xtype, wmod->module_name);
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}
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}
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static const char* DEBUG_GetModuleType(int type)
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{
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switch (type) {
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case DM_TYPE_NE: return "NE";
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case DM_TYPE_PE: return "PE";
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case DM_TYPE_ELF: return "ELF";
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default: return "???";;
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}
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}
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static const char* DEBUG_GetModuleStatus(int status)
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{
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switch (status) {
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case DM_STATUS_NEW: return "deferred";
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case DM_STATUS_LOADED: return "ok";
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case DM_STATUS_ERROR: return "error";
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default: return "???";
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}
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}
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/***********************************************************************
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* DEBUG_
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* Display information about a given module (DLL or EXE)
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*/
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void DEBUG_DumpModule(DWORD mod)
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{
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DBG_MODULE* wmod;
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if (!(wmod = DEBUG_FindModuleByHandle(mod, DM_TYPE_UNKNOWN)) &&
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!(wmod = DEBUG_FindModuleByAddr((void*)mod, DM_TYPE_UNKNOWN))) {
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DEBUG_Printf(DBG_CHN_MESG, "'0x%08lx' is not a valid module handle or address\n", mod);
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return;
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}
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DEBUG_Printf(DBG_CHN_MESG, "Module '%s' (handle=0x%08x) at 0x%8.8x (%s/%s)\n",
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wmod->module_name, wmod->handle, (unsigned int)wmod->load_addr,
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DEBUG_GetModuleType(wmod->type), DEBUG_GetModuleStatus(wmod->status));
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}
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/***********************************************************************
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* DEBUG_WalkModules
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*
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* Display information about all modules (DLLs and EXEs)
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*/
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void DEBUG_WalkModules(void)
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{
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DBG_MODULE* wmod;
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const char* xtype;
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DEBUG_Printf(DBG_CHN_MESG, "Address\t\tModule\tName\n");
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for (wmod = DEBUG_CurrProcess->modules; wmod; wmod = wmod->next) {
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switch (wmod->type) {
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case DM_TYPE_NE: xtype = "NE"; break;
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case DM_TYPE_PE: xtype = "PE"; break;
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case DM_TYPE_ELF: continue;
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default: xtype = "???"; break;
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}
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DEBUG_Printf(DBG_CHN_MESG, "0x%8.8x\t(%s)\t%s\n",
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(unsigned int)wmod->load_addr, DEBUG_GetModuleType(wmod->type),
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wmod->module_name);
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}
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}
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