Sweden-Number/dlls/dbghelp/source.c

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/*
* File source.c - source files management
*
* Copyright (C) 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
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*
*/
#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 struct module* rb_module;
struct source_rb
{
struct wine_rb_entry entry;
unsigned source;
};
static void *source_rb_alloc(size_t size)
{
return HeapAlloc(GetProcessHeap(), 0, size);
}
static void *source_rb_realloc(void *ptr, size_t size)
{
return HeapReAlloc(GetProcessHeap(), 0, ptr, size);
}
static void source_rb_free(void *ptr)
{
HeapFree(GetProcessHeap(), 0, ptr);
}
static int source_rb_compare(const void *key, const struct wine_rb_entry *entry)
{
const struct source_rb *t = WINE_RB_ENTRY_VALUE(entry, const struct source_rb, entry);
return strcmp((const char*)key, rb_module->sources + t->source);
}
const struct wine_rb_functions source_rb_functions =
{
source_rb_alloc,
source_rb_realloc,
source_rb_free,
source_rb_compare,
};
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/******************************************************************
* source_find
*
* check whether a source file has already been stored
*/
static unsigned source_find(const char* name)
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{
struct wine_rb_entry* e;
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e = wine_rb_get(&rb_module->sources_offsets_tree, name);
if (!e) return -1;
return WINE_RB_ENTRY_VALUE(e, struct source_rb, entry)->source;
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}
/******************************************************************
* source_new
*
* checks if source exists. if not, add it
*/
unsigned source_new(struct module* module, const char* base, const char* name)
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{
unsigned ret = -1;
const char* full;
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char* tmp = NULL;
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if (!name) return ret;
if (!base || *name == '/')
full = name;
else
{
unsigned bsz = strlen(base);
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tmp = HeapAlloc(GetProcessHeap(), 0, bsz + 1 + strlen(name) + 1);
if (!tmp) return ret;
full = tmp;
strcpy(tmp, base);
if (tmp[bsz - 1] != '/') tmp[bsz++] = '/';
strcpy(&tmp[bsz], name);
}
rb_module = module;
if (!module->sources || (ret = source_find(full)) == (unsigned)-1)
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{
char* new;
int len = strlen(full) + 1;
struct source_rb* rb;
if (module->sources_used + len + 1 > module->sources_alloc)
{
if (!module->sources)
{
module->sources_alloc = (module->sources_used + len + 1 + 255) & ~255;
new = HeapAlloc(GetProcessHeap(), 0, module->sources_alloc);
}
else
{
module->sources_alloc = max( module->sources_alloc * 2,
(module->sources_used + len + 1 + 255) & ~255 );
new = HeapReAlloc(GetProcessHeap(), 0, module->sources,
module->sources_alloc);
}
if (!new) goto done;
module->sources = new;
}
ret = module->sources_used;
memcpy(module->sources + module->sources_used, full, len);
module->sources_used += len;
module->sources[module->sources_used] = '\0';
if ((rb = pool_alloc(&module->pool, sizeof(*rb))))
{
rb->source = ret;
wine_rb_put(&module->sources_offsets_tree, full, &rb->entry);
}
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}
done:
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HeapFree(GetProcessHeap(), 0, tmp);
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return ret;
}
/******************************************************************
* source_get
*
* returns a stored source file name
*/
const char* source_get(const struct module* module, unsigned idx)
{
if (idx == -1) return "";
assert(module->sources);
return module->sources + idx;
}
/******************************************************************
* SymEnumSourceFiles (DBGHELP.@)
*
*/
BOOL WINAPI SymEnumSourceFiles(HANDLE hProcess, ULONG64 ModBase, PCSTR Mask,
PSYM_ENUMSOURCEFILES_CALLBACK cbSrcFiles,
PVOID UserContext)
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{
struct module_pair pair;
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SOURCEFILE sf;
char* ptr;
if (!cbSrcFiles) return FALSE;
pair.pcs = process_find_by_handle(hProcess);
if (!pair.pcs) return FALSE;
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if (ModBase)
{
pair.requested = module_find_by_addr(pair.pcs, ModBase, DMT_UNKNOWN);
if (!module_get_debug(&pair)) return FALSE;
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}
else
{
if (Mask[0] == '!')
{
pair.requested = module_find_by_nameA(pair.pcs, Mask + 1);
if (!module_get_debug(&pair)) return FALSE;
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}
else
{
FIXME("Unsupported yet (should get info from current context)\n");
return FALSE;
}
}
if (!pair.effective->sources) return FALSE;
for (ptr = pair.effective->sources; *ptr; ptr += strlen(ptr) + 1)
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{
/* FIXME: not using Mask */
sf.ModBase = ModBase;
sf.FileName = ptr;
if (!cbSrcFiles(&sf, UserContext)) break;
}
return TRUE;
}
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/******************************************************************
* SymGetSourceFileToken (DBGHELP.@)
*
*/
BOOL WINAPI SymGetSourceFileToken(HANDLE hProcess, ULONG64 base,
PCSTR src, PVOID* token, DWORD* size)
{
FIXME("%p %s %s %p %p: stub!\n",
hProcess, wine_dbgstr_longlong(base), debugstr_a(src), token, size);
SetLastError(ERROR_NOT_SUPPORTED);
return FALSE;
}
/******************************************************************
* SymGetSourceFileTokenW (DBGHELP.@)
*
*/
BOOL WINAPI SymGetSourceFileTokenW(HANDLE hProcess, ULONG64 base,
PCWSTR src, PVOID* token, DWORD* size)
{
FIXME("%p %s %s %p %p: stub!\n",
hProcess, wine_dbgstr_longlong(base), debugstr_w(src), token, size);
SetLastError(ERROR_NOT_SUPPORTED);
return FALSE;
}