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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
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "dbghelp_private.h"
#include "wine/debug.h"
#ifdef HAVE_REGEX_H
# include <regex.h>
#endif
WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
/******************************************************************
* source_find
*
* check whether a source file has already been stored
*/
static unsigned source_find(const struct module* module, const char* name)
{
char* ptr = module->sources;
while (*ptr)
{
if (strcmp(ptr, name) == 0) return ptr - module->sources;
ptr += strlen(ptr) + 1;
}
return (unsigned)-1;
}
/******************************************************************
* source_new
*
* checks if source exists. if not, add it
*/
unsigned source_new(struct module* module, const char* base, const char* name)
{
unsigned ret;
const char* full;
char* tmp = NULL;
if (!name) return (unsigned)-1;
if (!base || *name == '/')
full = name;
else
{
unsigned bsz = strlen(base);
tmp = HeapAlloc(GetProcessHeap(), 0, bsz + 1 + strlen(name) + 1);
if (!tmp) return (unsigned)-1;
full = tmp;
strcpy(tmp, base);
if (tmp[bsz - 1] != '/') tmp[bsz++] = '/';
strcpy(&tmp[bsz], name);
}
if (!module->sources || (ret = source_find(module, full)) == (unsigned)-1)
{
int len = strlen(full) + 1;
if (module->sources_used + len + 1 > module->sources_alloc)
{
/* Alloc by block of 256 bytes */
module->sources_alloc = (module->sources_used + len + 1 + 255) & ~255;
if (!module->sources)
module->sources = HeapAlloc(GetProcessHeap(), 0, module->sources_alloc);
else
module->sources = HeapReAlloc(GetProcessHeap(), 0, module->sources,
module->sources_alloc);
}
ret = module->sources_used;
memcpy(module->sources + module->sources_used, full, len);
module->sources_used += len;
module->sources[module->sources_used] = '\0';
}
HeapFree(GetProcessHeap(), 0, tmp);
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)
{
struct module_pair pair;
SOURCEFILE sf;
char* ptr;
if (!cbSrcFiles) return FALSE;
pair.pcs = process_find_by_handle(hProcess);
if (!pair.pcs) return FALSE;
if (ModBase)
{
pair.requested = module_find_by_addr(pair.pcs, ModBase, DMT_UNKNOWN);
if (!module_get_debug(&pair)) return FALSE;
}
else
{
if (Mask[0] == '!')
{
pair.requested = module_find_by_nameA(pair.pcs, Mask + 1);
if (!module_get_debug(&pair)) return FALSE;
}
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)
{
/* FIXME: not using Mask */
sf.ModBase = ModBase;
sf.FileName = ptr;
if (!cbSrcFiles(&sf, UserContext)) break;
}
return TRUE;
}
static inline void re_append(char** mask, unsigned* len, char ch)
{
*mask = HeapReAlloc(GetProcessHeap(), 0, *mask, ++(*len));
(*mask)[*len - 2] = ch;
}
static BOOL compile_regex(regex_t* re, const char* srcfile)
{
char* mask;
unsigned len = 1;
mask = HeapAlloc(GetProcessHeap(), 0, 1);
re_append(&mask, &len, '^');
if (!srcfile || !*srcfile) re_append(&mask, &len, '*');
else while (*srcfile)
{
switch (*srcfile)
{
case '\\':
case '/':
re_append(&mask, &len, '[');
re_append(&mask, &len, '\\');
re_append(&mask, &len, '\\');
re_append(&mask, &len, '/');
re_append(&mask, &len, ']');
break;
case '.':
re_append(&mask, &len, '\\');
re_append(&mask, &len, '.');
break;
default:
re_append(&mask, &len, *srcfile);
break;
}
srcfile++;
}
re_append(&mask, &len, '$');
mask[len - 1] = '\0';
len = regcomp(re, mask, REG_NOSUB);
HeapFree(GetProcessHeap(), 0, mask);
if (len)
{
FIXME("Couldn't compile %s\n", mask);
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
return TRUE;
}
/******************************************************************
* SymEnumLines (DBGHELP.@)
*
*/
BOOL WINAPI SymEnumLines(HANDLE hProcess, ULONG64 base, PCSTR compiland,
PCSTR srcfile, PSYM_ENUMLINES_CALLBACK cb, PVOID user)
{
struct module_pair pair;
struct hash_table_iter hti;
struct symt_ht* sym;
regex_t re;
struct line_info* dli;
void* ptr;
SRCCODEINFO sci;
const char* file;
if (!cb) return FALSE;
if (!(dbghelp_options & SYMOPT_LOAD_LINES)) return TRUE;
pair.pcs = process_find_by_handle(hProcess);
if (!pair.pcs) return FALSE;
if (compiland) FIXME("Unsupported yet (filtering on compiland %s)\n", compiland);
pair.requested = module_find_by_addr(pair.pcs, base, DMT_UNKNOWN);
if (!module_get_debug(&pair)) return FALSE;
if (!compile_regex(&re, srcfile)) return FALSE;
sci.SizeOfStruct = sizeof(sci);
sci.ModBase = base;
hash_table_iter_init(&pair.effective->ht_symbols, &hti, NULL);
while ((ptr = hash_table_iter_up(&hti)))
{
int i;
sym = GET_ENTRY(ptr, struct symt_ht, hash_elt);
if (sym->symt.tag != SymTagFunction) continue;
sci.FileName[0] = '\0';
for (i=0; i<vector_length(&((struct symt_function*)sym)->vlines); i++)
{
dli = vector_at(&((struct symt_function*)sym)->vlines, i);
if (dli->is_source_file)
{
file = source_get(pair.effective, dli->u.source_file);
if (regexec(&re, file, 0, NULL, 0) != 0) file = "";
strcpy(sci.FileName, file);
}
else if (sci.FileName[0])
{
sci.Key = dli;
sci.Obj[0] = '\0'; /* FIXME */
sci.LineNumber = dli->line_number;
sci.Address = dli->u.pc_offset;
if (!cb(&sci, user)) break;
}
}
}
regfree(&re);
return TRUE;
}
/******************************************************************
* 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;
}
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