source.c 4.04 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138
/*
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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);

/******************************************************************
 *		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* name)
{
    int         len;
    unsigned    ret;

    if (!name) return (unsigned)-1;
    if (module->sources && (ret = source_find(module, name)) != (unsigned)-1)
        return ret;

    len = strlen(name) + 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;
    strcpy(module->sources + module->sources_used, name);
    module->sources_used += len;
    module->sources[module->sources_used] = '\0';
    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, ULONG ModBase, LPSTR Mask,
                               PSYM_ENUMSOURCFILES_CALLBACK cbSrcFiles,
                               void* UserContext)
{
    struct process*     pcs;
    struct module*      module;
    SOURCEFILE          sf;
    char*               ptr;
    
    if (!cbSrcFiles) return FALSE;
    pcs = process_find_by_handle(hProcess);
    if (!pcs) return FALSE;
         
    if (ModBase)
    {
        module = module_find_by_addr(pcs, ModBase, DMT_UNKNOWN);
        if (!(module = module_get_debug(pcs, module))) return FALSE;
    }
    else
    {
        if (Mask[0] == '!')
        {
            module = module_find_by_name(pcs, Mask + 1, DMT_UNKNOWN);
            if (!(module = module_get_debug(pcs, module))) return FALSE;
        }
        else
        {
            FIXME("Unsupported yet (should get info from current context)\n");
            return FALSE;
        }
    }
    if (!module->sources) return FALSE;
    for (ptr = module->sources; *ptr; ptr += strlen(ptr) + 1)
    {
        /* FIXME: not using Mask */
        sf.ModBase = ModBase;
        sf.FileName = ptr;
        if (!cbSrcFiles(&sf, UserContext)) break;
    }

    return TRUE;
}