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/*
* File msc.c - read VC++ debug information from COFF and eventually
* from PDB files.
*
* Copyright (C) 1996, Eric Youngdale.
* Copyright (C) 1999-2000, Ulrich Weigand.
* 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
*/
/*
* Note - this handles reading debug information for 32 bit applications
* that run under Windows-NT for example. I doubt that this would work well
* for 16 bit applications, but I don't think it really matters since the
* file format is different, and we should never get in here in such cases.
*
* TODO:
* Get 16 bit CV stuff working.
* Add symbol size to internal symbol table.
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifndef PATH_MAX
#define PATH_MAX MAX_PATH
#endif
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "winternl.h"
#include "wine/exception.h"
#include "wine/debug.h"
#include "excpt.h"
#include "dbghelp_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(dbghelp_msc);
#define MAX_PATHNAME_LEN 1024
typedef struct
{
DWORD from;
DWORD to;
} OMAP_DATA;
struct msc_debug_info
{
struct module* module;
int nsect;
const IMAGE_SECTION_HEADER* sectp;
int nomap;
const OMAP_DATA* omapp;
const BYTE* root;
};
/*========================================================================
* Debug file access helper routines
*/
static WINE_EXCEPTION_FILTER(page_fault)
{
if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
return EXCEPTION_EXECUTE_HANDLER;
return EXCEPTION_CONTINUE_SEARCH;
}
/*========================================================================
* Process COFF debug information.
*/
struct CoffFile
{
unsigned int startaddr;
unsigned int endaddr;
struct symt_compiland* compiland;
int linetab_offset;
int linecnt;
struct symt** entries;
int neps;
int neps_alloc;
};
struct CoffFileSet
{
struct CoffFile* files;
int nfiles;
int nfiles_alloc;
};
static const char* coff_get_name(const IMAGE_SYMBOL* coff_sym,
const char* coff_strtab)
{
static char namebuff[9];
const char* nampnt;
if (coff_sym->N.Name.Short)
{
memcpy(namebuff, coff_sym->N.ShortName, 8);
namebuff[8] = '\0';
nampnt = &namebuff[0];
}
else
{
nampnt = coff_strtab + coff_sym->N.Name.Long;
}
if (nampnt[0] == '_') nampnt++;
return nampnt;
}
static int coff_add_file(struct CoffFileSet* coff_files, struct module* module,
const char* filename)
{
struct CoffFile* file;
if (coff_files->nfiles + 1 >= coff_files->nfiles_alloc)
{
coff_files->nfiles_alloc += 10;
coff_files->files = (coff_files->files) ?
HeapReAlloc(GetProcessHeap(), 0, coff_files->files,
coff_files->nfiles_alloc * sizeof(struct CoffFile)) :
HeapAlloc(GetProcessHeap(), 0,
coff_files->nfiles_alloc * sizeof(struct CoffFile));
}
file = coff_files->files + coff_files->nfiles;
file->startaddr = 0xffffffff;
file->endaddr = 0;
file->compiland = symt_new_compiland(module, filename);
file->linetab_offset = -1;
file->linecnt = 0;
file->entries = NULL;
file->neps = file->neps_alloc = 0;
return coff_files->nfiles++;
}
static void coff_add_symbol(struct CoffFile* coff_file, struct symt* sym)
{
if (coff_file->neps + 1 >= coff_file->neps_alloc)
{
coff_file->neps_alloc += 10;
coff_file->entries = (coff_file->entries) ?
HeapReAlloc(GetProcessHeap(), 0, coff_file->entries,
coff_file->neps_alloc * sizeof(struct symt*)) :
HeapAlloc(GetProcessHeap(), 0,
coff_file->neps_alloc * sizeof(struct symt*));
}
coff_file->entries[coff_file->neps++] = sym;
}
static SYM_TYPE coff_process_info(const struct msc_debug_info* msc_dbg)
{
const IMAGE_AUX_SYMBOL* aux;
const IMAGE_COFF_SYMBOLS_HEADER* coff;
const IMAGE_LINENUMBER* coff_linetab;
const IMAGE_LINENUMBER* linepnt;
const char* coff_strtab;
const IMAGE_SYMBOL* coff_sym;
const IMAGE_SYMBOL* coff_symbols;
struct CoffFileSet coff_files;
int curr_file_idx = -1;
unsigned int i;
int j;
int k;
int l;
int linetab_indx;
const char* nampnt;
int naux;
SYM_TYPE sym_type = SymNone;
DWORD addr;
TRACE("Processing COFF symbols...\n");
assert(sizeof(IMAGE_SYMBOL) == IMAGE_SIZEOF_SYMBOL);
assert(sizeof(IMAGE_LINENUMBER) == IMAGE_SIZEOF_LINENUMBER);
coff_files.files = NULL;
coff_files.nfiles = coff_files.nfiles_alloc = 0;
coff = (const IMAGE_COFF_SYMBOLS_HEADER*)msc_dbg->root;
coff_symbols = (const IMAGE_SYMBOL*)((unsigned int)coff +
coff->LvaToFirstSymbol);
coff_linetab = (const IMAGE_LINENUMBER*)((unsigned int)coff +
coff->LvaToFirstLinenumber);
coff_strtab = (const char*)(coff_symbols + coff->NumberOfSymbols);
linetab_indx = 0;
for (i = 0; i < coff->NumberOfSymbols; i++)
{
coff_sym = coff_symbols + i;
naux = coff_sym->NumberOfAuxSymbols;
if (coff_sym->StorageClass == IMAGE_SYM_CLASS_FILE)
{
curr_file_idx = coff_add_file(&coff_files, msc_dbg->module,
(const char*)(coff_sym + 1));
TRACE("New file %s\n", (const char*)(coff_sym + 1));
i += naux;
continue;
}
if (curr_file_idx < 0)
{
assert(coff_files.nfiles == 0 && coff_files.nfiles_alloc == 0);
curr_file_idx = coff_add_file(&coff_files, msc_dbg->module, "<none>");
TRACE("New file <none>\n");
}
/*
* This guy marks the size and location of the text section
* for the current file. We need to keep track of this so
* we can figure out what file the different global functions
* go with.
*/
if (coff_sym->StorageClass == IMAGE_SYM_CLASS_STATIC &&
naux != 0 && coff_sym->Type == 0 && coff_sym->SectionNumber == 1)
{
aux = (const IMAGE_AUX_SYMBOL*) (coff_sym + 1);
if (coff_files.files[curr_file_idx].linetab_offset != -1)
{
/*
* Save this so we can still get the old name.
*/
const char* fn;
fn = source_get(msc_dbg->module,
coff_files.files[curr_file_idx].compiland->source);
TRACE("Duplicating sect from %s: %lx %x %x %d %d\n",
fn, aux->Section.Length,
aux->Section.NumberOfRelocations,
aux->Section.NumberOfLinenumbers,
aux->Section.Number, aux->Section.Selection);
TRACE("More sect %d %s %08lx %d %d %d\n",
coff_sym->SectionNumber,
coff_get_name(coff_sym, coff_strtab),
coff_sym->Value, coff_sym->Type,
coff_sym->StorageClass, coff_sym->NumberOfAuxSymbols);
/*
* Duplicate the file entry. We have no way to describe
* multiple text sections in our current way of handling things.
*/
coff_add_file(&coff_files, msc_dbg->module, fn);
}
else
{
TRACE("New text sect from %s: %lx %x %x %d %d\n",
source_get(msc_dbg->module, coff_files.files[curr_file_idx].compiland->source),
aux->Section.Length,
aux->Section.NumberOfRelocations,
aux->Section.NumberOfLinenumbers,
aux->Section.Number, aux->Section.Selection);
}
if (coff_files.files[curr_file_idx].startaddr > coff_sym->Value)
{
coff_files.files[curr_file_idx].startaddr = coff_sym->Value;
}
if (coff_files.files[curr_file_idx].endaddr < coff_sym->Value + aux->Section.Length)
{
coff_files.files[curr_file_idx].endaddr = coff_sym->Value + aux->Section.Length;
}
coff_files.files[curr_file_idx].linetab_offset = linetab_indx;
coff_files.files[curr_file_idx].linecnt = aux->Section.NumberOfLinenumbers;
linetab_indx += aux->Section.NumberOfLinenumbers;
i += naux;
continue;
}
if (coff_sym->StorageClass == IMAGE_SYM_CLASS_STATIC && naux == 0 &&
coff_sym->SectionNumber == 1)
{
DWORD base = msc_dbg->sectp[coff_sym->SectionNumber - 1].VirtualAddress;
/*
* This is a normal static function when naux == 0.
* Just register it. The current file is the correct
* one in this instance.
*/
nampnt = coff_get_name(coff_sym, coff_strtab);
TRACE("\tAdding static symbol %s\n", nampnt);
/* FIXME: was adding symbol to this_file ??? */
coff_add_symbol(&coff_files.files[curr_file_idx],
&symt_new_function(msc_dbg->module,
coff_files.files[curr_file_idx].compiland,
nampnt,
msc_dbg->module->module.BaseOfImage + base + coff_sym->Value,
0 /* FIXME */,
NULL /* FIXME */)->symt);
i += naux;
continue;
}
if (coff_sym->StorageClass == IMAGE_SYM_CLASS_EXTERNAL &&
ISFCN(coff_sym->Type) && coff_sym->SectionNumber > 0)
{
struct symt_compiland* compiland = NULL;
DWORD base = msc_dbg->sectp[coff_sym->SectionNumber - 1].VirtualAddress;
nampnt = coff_get_name(coff_sym, coff_strtab);
TRACE("%d: %lx %s\n",
i, msc_dbg->module->module.BaseOfImage + base + coff_sym->Value,
nampnt);
TRACE("\tAdding global symbol %s (sect=%s)\n",
nampnt, msc_dbg->sectp[coff_sym->SectionNumber - 1].Name);
/*
* Now we need to figure out which file this guy belongs to.
*/
for (j = 0; j < coff_files.nfiles; j++)
{
if (coff_files.files[j].startaddr <= base + coff_sym->Value
&& coff_files.files[j].endaddr > base + coff_sym->Value)
{
compiland = coff_files.files[j].compiland;
break;
}
}
if (j < coff_files.nfiles)
{
coff_add_symbol(&coff_files.files[j],
&symt_new_function(msc_dbg->module, compiland, nampnt,
msc_dbg->module->module.BaseOfImage + base + coff_sym->Value,
0 /* FIXME */, NULL /* FIXME */)->symt);
}
else
{
symt_new_function(msc_dbg->module, NULL, nampnt,
msc_dbg->module->module.BaseOfImage + base + coff_sym->Value,
0 /* FIXME */, NULL /* FIXME */);
}
i += naux;
continue;
}
if (coff_sym->StorageClass == IMAGE_SYM_CLASS_EXTERNAL &&
coff_sym->SectionNumber > 0)
{
DWORD base = msc_dbg->sectp[coff_sym->SectionNumber - 1].VirtualAddress;
/*
* Similar to above, but for the case of data symbols.
* These aren't treated as entrypoints.
*/
nampnt = coff_get_name(coff_sym, coff_strtab);
TRACE("%d: %lx %s\n",
i, msc_dbg->module->module.BaseOfImage + base + coff_sym->Value,
nampnt);
TRACE("\tAdding global data symbol %s\n", nampnt);
/*
* Now we need to figure out which file this guy belongs to.
*/
symt_new_global_variable(msc_dbg->module, NULL, nampnt, TRUE /* FIXME */,
msc_dbg->module->module.BaseOfImage + base + coff_sym->Value,
0 /* FIXME */, NULL /* FIXME */);
i += naux;
continue;
}
if (coff_sym->StorageClass == IMAGE_SYM_CLASS_STATIC && naux == 0)
{
/*
* Ignore these. They don't have anything to do with
* reality.
*/
i += naux;
continue;
}
TRACE("Skipping unknown entry '%s' %d %d %d\n",
coff_get_name(coff_sym, coff_strtab),
coff_sym->StorageClass, coff_sym->SectionNumber, naux);
/*
* For now, skip past the aux entries.
*/
i += naux;
}
if (coff_files.files != NULL)
{
/*
* OK, we now should have a list of files, and we should have a list
* of entrypoints. We need to sort the entrypoints so that we are
* able to tie the line numbers with the given functions within the
* file.
*/
for (j = 0; j < coff_files.nfiles; j++)
{
if (coff_files.files[j].entries != NULL)
{
qsort(coff_files.files[j].entries, coff_files.files[j].neps,
sizeof(struct symt*), symt_cmp_addr);
}
}
/*
* Now pick apart the line number tables, and attach the entries
* to the given functions.
*/
for (j = 0; j < coff_files.nfiles; j++)
{
l = 0;
if (coff_files.files[j].neps != 0)
{
for (k = 0; k < coff_files.files[j].linecnt; k++)
{
linepnt = coff_linetab + coff_files.files[j].linetab_offset + k;
/*
* If we have spilled onto the next entrypoint, then
* bump the counter..
*/
for (;;)
{
if (l+1 >= coff_files.files[j].neps) break;
symt_get_info(coff_files.files[j].entries[l+1], TI_GET_ADDRESS, &addr);
if (((msc_dbg->module->module.BaseOfImage + linepnt->Type.VirtualAddress) < addr))
break;
l++;
}
if (coff_files.files[j].entries[l+1]->tag == SymTagFunction)
{
/*
* Add the line number. This is always relative to the
* start of the function, so we need to subtract that offset
* first.
*/
symt_get_info(coff_files.files[j].entries[l+1], TI_GET_ADDRESS, &addr);
symt_add_func_line(msc_dbg->module, (struct symt_function*)coff_files.files[j].entries[l+1],
coff_files.files[j].compiland->source, linepnt->Linenumber,
msc_dbg->module->module.BaseOfImage + linepnt->Type.VirtualAddress - addr);
}
}
}
}
sym_type = SymCoff;
for (j = 0; j < coff_files.nfiles; j++)
{
if (coff_files.files[j].entries != NULL)
{
HeapFree(GetProcessHeap(), 0, coff_files.files[j].entries);
}
}
HeapFree(GetProcessHeap(), 0, coff_files.files);
}
return sym_type;
}
/*========================================================================
* Process CodeView type information.
*/
union codeview_type
{
struct
{
unsigned short int len;
short int id;
} generic;
struct
{
unsigned short int len;
short int id;
short int attribute;
short int datatype;
unsigned char variant[1];
} pointer;
struct
{
unsigned short int len;
short int id;
unsigned int datatype;
unsigned int attribute;
unsigned char variant[1];
} pointer32;
struct
{
unsigned short int len;
short int id;
unsigned char nbits;
unsigned char bitoff;
unsigned short type;
} bitfield;
struct
{
unsigned short int len;
short int id;
unsigned int type;
unsigned char nbits;
unsigned char bitoff;
} bitfield32;
struct
{
unsigned short int len;
short int id;
short int elemtype;
short int idxtype;
unsigned short int arrlen; /* numeric leaf */
#if 0
unsigned char name[1];
#endif
} array;
struct
{
unsigned short int len;
short int id;
unsigned int elemtype;
unsigned int idxtype;
unsigned short int arrlen; /* numeric leaf */
#if 0
unsigned char name[1];
#endif
} array32;
struct
{
unsigned short int len;
short int id;
short int n_element;
short int fieldlist;
short int property;
short int derived;
short int vshape;
unsigned short int structlen; /* numeric leaf */
#if 0
unsigned char name[1];
#endif
} structure;
struct
{
unsigned short int len;
short int id;
short int n_element;
short int property;
unsigned int fieldlist;
unsigned int derived;
unsigned int vshape;
unsigned short int structlen; /* numeric leaf */
#if 0
unsigned char name[1];
#endif
} structure32;
struct
{
unsigned short int len;
short int id;
short int count;
short int fieldlist;
short int property;
unsigned short int un_len; /* numeric leaf */
#if 0
unsigned char name[1];
#endif
} t_union;
struct
{
unsigned short int len;
short int id;
short int count;
short int property;
unsigned int fieldlist;
unsigned short int un_len; /* numeric leaf */
#if 0
unsigned char name[1];
#endif
} t_union32;
struct
{
unsigned short int len;
short int id;
short int count;
short int type;
short int field;
short int property;
unsigned char name[1];
} enumeration;
struct
{
unsigned short int len;
short int id;
short int count;
short int property;
unsigned int type;
unsigned int field;
unsigned char name[1];
} enumeration32;
struct
{
unsigned short int len;
short int id;
unsigned char list[1];
} fieldlist;
};
union codeview_fieldtype
{
struct
{
short int id;
} generic;
struct
{
short int id;
short int type;
short int attribute;
unsigned short int offset; /* numeric leaf */
} bclass;
struct
{
short int id;
short int attribute;
unsigned int type;
unsigned short int offset; /* numeric leaf */
} bclass32;
struct
{
short int id;
short int btype;
short int vbtype;
short int attribute;
unsigned short int vbpoff; /* numeric leaf */
#if 0
unsigned short int vboff; /* numeric leaf */
#endif
} vbclass;
struct
{
short int id;
short int attribute;
unsigned int btype;
unsigned int vbtype;
unsigned short int vbpoff; /* numeric leaf */
#if 0
unsigned short int vboff; /* numeric leaf */
#endif
} vbclass32;
struct
{
short int id;
short int attribute;
unsigned short int value; /* numeric leaf */
#if 0
unsigned char name[1];
#endif
} enumerate;
struct
{
short int id;
short int type;
unsigned char name[1];
} friendfcn;
struct
{
short int id;
short int _pad0;
unsigned int type;
unsigned char name[1];
} friendfcn32;
struct
{
short int id;
short int type;
short int attribute;
unsigned short int offset; /* numeric leaf */
#if 0
unsigned char name[1];
#endif
} member;
struct
{
short int id;
short int attribute;
unsigned int type;
unsigned short int offset; /* numeric leaf */
#if 0
unsigned char name[1];
#endif
} member32;
struct
{
short int id;
short int type;
short int attribute;
unsigned char name[1];
} stmember;
struct
{
short int id;
short int attribute;
unsigned int type;
unsigned char name[1];
} stmember32;
struct
{
short int id;
short int count;
short int mlist;
unsigned char name[1];
} method;
struct
{
short int id;
short int count;
unsigned int mlist;
unsigned char name[1];
} method32;
struct
{
short int id;
short int index;
unsigned char name[1];
} nesttype;
struct
{
short int id;
short int _pad0;
unsigned int index;
unsigned char name[1];
} nesttype32;
struct
{
short int id;
short int type;
} vfunctab;
struct
{
short int id;
short int _pad0;
unsigned int type;
} vfunctab32;
struct
{
short int id;
short int type;
} friendcls;
struct
{
short int id;
short int _pad0;
unsigned int type;
} friendcls32;
struct
{
short int id;
short int attribute;
short int type;
unsigned char name[1];
} onemethod;
struct
{
short int id;
short int attribute;
short int type;
unsigned int vtab_offset;
unsigned char name[1];
} onemethod_virt;
struct
{
short int id;
short int attribute;
unsigned int type;
unsigned char name[1];
} onemethod32;
struct
{
short int id;
short int attribute;
unsigned int type;
unsigned int vtab_offset;
unsigned char name[1];
} onemethod32_virt;
struct
{
short int id;
short int type;
unsigned int offset;
} vfuncoff;
struct
{
short int id;
short int _pad0;
unsigned int type;
unsigned int offset;
} vfuncoff32;
struct
{
short int id;
short int attribute;
short int index;
unsigned char name[1];
} nesttypeex;
struct
{
short int id;
short int attribute;
unsigned int index;
unsigned char name[1];
} nesttypeex32;
struct
{
short int id;
short int attribute;
unsigned int type;
unsigned char name[1];
} membermodify;
};
/*
* This covers the basic datatypes that VC++ seems to be using these days.
* 32 bit mode only. There are additional numbers for the pointers in 16
* bit mode. There are many other types listed in the documents, but these
* are apparently not used by the compiler, or represent pointer types
* that are not used.
*/
#define T_NOTYPE 0x0000 /* Notype */
#define T_ABS 0x0001 /* Abs */
#define T_VOID 0x0003 /* Void */
#define T_CHAR 0x0010 /* signed char */
#define T_SHORT 0x0011 /* short */
#define T_LONG 0x0012 /* long */
#define T_QUAD 0x0013 /* long long */
#define T_UCHAR 0x0020 /* unsigned char */
#define T_USHORT 0x0021 /* unsigned short */
#define T_ULONG 0x0022 /* unsigned long */
#define T_UQUAD 0x0023 /* unsigned long long */
#define T_REAL32 0x0040 /* float */
#define T_REAL64 0x0041 /* double */
#define T_RCHAR 0x0070 /* real char */
#define T_WCHAR 0x0071 /* wide char */
#define T_INT4 0x0074 /* int */
#define T_UINT4 0x0075 /* unsigned int */
#define T_32PVOID 0x0403 /* 32 bit near pointer to void */
#define T_32PCHAR 0x0410 /* 16:32 near pointer to signed char */
#define T_32PSHORT 0x0411 /* 16:32 near pointer to short */
#define T_32PLONG 0x0412 /* 16:32 near pointer to int */
#define T_32PQUAD 0x0413 /* 16:32 near pointer to long long */
#define T_32PUCHAR 0x0420 /* 16:32 near pointer to unsigned char */
#define T_32PUSHORT 0x0421 /* 16:32 near pointer to unsigned short */
#define T_32PULONG 0x0422 /* 16:32 near pointer to unsigned int */
#define T_32PUQUAD 0x0423 /* 16:32 near pointer to long long */
#define T_32PREAL32 0x0440 /* 16:32 near pointer to float */
#define T_32PREAL64 0x0441 /* 16:32 near pointer to float */
#define T_32PRCHAR 0x0470 /* 16:32 near pointer to real char */
#define T_32PWCHAR 0x0471 /* 16:32 near pointer to real char */
#define T_32PINT4 0x0474 /* 16:32 near pointer to int */
#define T_32PUINT4 0x0475 /* 16:32 near pointer to unsigned int */
#define LF_MODIFIER 0x0001
#define LF_POINTER 0x0002
#define LF_ARRAY 0x0003
#define LF_CLASS 0x0004
#define LF_STRUCTURE 0x0005
#define LF_UNION 0x0006
#define LF_ENUM 0x0007
#define LF_PROCEDURE 0x0008
#define LF_MFUNCTION 0x0009
#define LF_VTSHAPE 0x000a
#define LF_COBOL0 0x000b
#define LF_COBOL1 0x000c
#define LF_BARRAY 0x000d
#define LF_LABEL 0x000e
#define LF_NULL 0x000f
#define LF_NOTTRAN 0x0010
#define LF_DIMARRAY 0x0011
#define LF_VFTPATH 0x0012
#define LF_PRECOMP 0x0013
#define LF_ENDPRECOMP 0x0014
#define LF_OEM 0x0015
#define LF_TYPESERVER 0x0016
#define LF_MODIFIER_32 0x1001 /* variants with new 32-bit type indices */
#define LF_POINTER_32 0x1002
#define LF_ARRAY_32 0x1003
#define LF_CLASS_32 0x1004
#define LF_STRUCTURE_32 0x1005
#define LF_UNION_32 0x1006
#define LF_ENUM_32 0x1007
#define LF_PROCEDURE_32 0x1008
#define LF_MFUNCTION_32 0x1009
#define LF_COBOL0_32 0x100a
#define LF_BARRAY_32 0x100b
#define LF_DIMARRAY_32 0x100c
#define LF_VFTPATH_32 0x100d
#define LF_PRECOMP_32 0x100e
#define LF_OEM_32 0x100f
#define LF_SKIP 0x0200
#define LF_ARGLIST 0x0201
#define LF_DEFARG 0x0202
#define LF_LIST 0x0203
#define LF_FIELDLIST 0x0204
#define LF_DERIVED 0x0205
#define LF_BITFIELD 0x0206
#define LF_METHODLIST 0x0207
#define LF_DIMCONU 0x0208
#define LF_DIMCONLU 0x0209
#define LF_DIMVARU 0x020a
#define LF_DIMVARLU 0x020b
#define LF_REFSYM 0x020c
#define LF_SKIP_32 0x1200 /* variants with new 32-bit type indices */
#define LF_ARGLIST_32 0x1201
#define LF_DEFARG_32 0x1202
#define LF_FIELDLIST_32 0x1203
#define LF_DERIVED_32 0x1204
#define LF_BITFIELD_32 0x1205
#define LF_METHODLIST_32 0x1206
#define LF_DIMCONU_32 0x1207
#define LF_DIMCONLU_32 0x1208
#define LF_DIMVARU_32 0x1209
#define LF_DIMVARLU_32 0x120a
#define LF_BCLASS 0x0400
#define LF_VBCLASS 0x0401
#define LF_IVBCLASS 0x0402
#define LF_ENUMERATE 0x0403
#define LF_FRIENDFCN 0x0404
#define LF_INDEX 0x0405
#define LF_MEMBER 0x0406
#define LF_STMEMBER 0x0407
#define LF_METHOD 0x0408
#define LF_NESTTYPE 0x0409
#define LF_VFUNCTAB 0x040a
#define LF_FRIENDCLS 0x040b
#define LF_ONEMETHOD 0x040c
#define LF_VFUNCOFF 0x040d
#define LF_NESTTYPEEX 0x040e
#define LF_MEMBERMODIFY 0x040f
#define LF_BCLASS_32 0x1400 /* variants with new 32-bit type indices */
#define LF_VBCLASS_32 0x1401
#define LF_IVBCLASS_32 0x1402
#define LF_FRIENDFCN_32 0x1403
#define LF_INDEX_32 0x1404
#define LF_MEMBER_32 0x1405
#define LF_STMEMBER_32 0x1406
#define LF_METHOD_32 0x1407
#define LF_NESTTYPE_32 0x1408
#define LF_VFUNCTAB_32 0x1409
#define LF_FRIENDCLS_32 0x140a
#define LF_ONEMETHOD_32 0x140b
#define LF_VFUNCOFF_32 0x140c
#define LF_NESTTYPEEX_32 0x140d
#define LF_NUMERIC 0x8000 /* numeric leaf types */
#define LF_CHAR 0x8000
#define LF_SHORT 0x8001
#define LF_USHORT 0x8002
#define LF_LONG 0x8003
#define LF_ULONG 0x8004
#define LF_REAL32 0x8005
#define LF_REAL64 0x8006
#define LF_REAL80 0x8007
#define LF_REAL128 0x8008
#define LF_QUADWORD 0x8009
#define LF_UQUADWORD 0x800a
#define LF_REAL48 0x800b
#define LF_COMPLEX32 0x800c
#define LF_COMPLEX64 0x800d
#define LF_COMPLEX80 0x800e
#define LF_COMPLEX128 0x800f
#define LF_VARSTRING 0x8010
#define MAX_BUILTIN_TYPES 0x480
static struct symt* cv_basic_types[MAX_BUILTIN_TYPES];
static unsigned int num_cv_defined_types = 0;
static struct symt** cv_defined_types = NULL;
#define SymTagCVBitField (SymTagMax + 0x100)
struct codeview_bitfield
{
struct symt symt;
unsigned subtype;
unsigned bitposition;
unsigned bitlength;
};
static struct codeview_bitfield* cv_bitfields;
static unsigned num_cv_bitfields;
static unsigned used_cv_bitfields;
static void codeview_init_basic_types(struct module* module)
{
/*
* These are the common builtin types that are used by VC++.
*/
cv_basic_types[T_NOTYPE] = NULL;
cv_basic_types[T_ABS] = NULL;
cv_basic_types[T_VOID] = &symt_new_basic(module, btVoid, "void", 0)->symt;
cv_basic_types[T_CHAR] = &symt_new_basic(module, btChar, "char", 1)->symt;
cv_basic_types[T_SHORT] = &symt_new_basic(module, btInt, "short int", 2)->symt;
cv_basic_types[T_LONG] = &symt_new_basic(module, btInt, "long int", 4)->symt;
cv_basic_types[T_QUAD] = &symt_new_basic(module, btInt, "long long int", 8)->symt;
cv_basic_types[T_UCHAR] = &symt_new_basic(module, btUInt, "unsigned char", 1)->symt;
cv_basic_types[T_USHORT] = &symt_new_basic(module, btUInt, "unsigned short", 2)->symt;
cv_basic_types[T_ULONG] = &symt_new_basic(module, btUInt, "unsigned long", 4)->symt;
cv_basic_types[T_UQUAD] = &symt_new_basic(module, btUInt, "unsigned long long", 8)->symt;
cv_basic_types[T_REAL32] = &symt_new_basic(module, btFloat, "float", 4)->symt;
cv_basic_types[T_REAL64] = &symt_new_basic(module, btFloat, "double", 8)->symt;
cv_basic_types[T_RCHAR] = &symt_new_basic(module, btInt, "signed char", 1)->symt;
cv_basic_types[T_WCHAR] = &symt_new_basic(module, btWChar, "wchar_t", 2)->symt;
cv_basic_types[T_INT4] = &symt_new_basic(module, btInt, "INT4", 4)->symt;
cv_basic_types[T_UINT4] = &symt_new_basic(module, btUInt, "UINT4", 4)->symt;
cv_basic_types[T_32PVOID] = &symt_new_pointer(module, cv_basic_types[T_VOID])->symt;
cv_basic_types[T_32PCHAR] = &symt_new_pointer(module, cv_basic_types[T_CHAR])->symt;
cv_basic_types[T_32PSHORT] = &symt_new_pointer(module, cv_basic_types[T_SHORT])->symt;
cv_basic_types[T_32PLONG] = &symt_new_pointer(module, cv_basic_types[T_LONG])->symt;
cv_basic_types[T_32PQUAD] = &symt_new_pointer(module, cv_basic_types[T_QUAD])->symt;
cv_basic_types[T_32PUCHAR] = &symt_new_pointer(module, cv_basic_types[T_UCHAR])->symt;
cv_basic_types[T_32PUSHORT] = &symt_new_pointer(module, cv_basic_types[T_USHORT])->symt;
cv_basic_types[T_32PULONG] = &symt_new_pointer(module, cv_basic_types[T_ULONG])->symt;
cv_basic_types[T_32PUQUAD] = &symt_new_pointer(module, cv_basic_types[T_UQUAD])->symt;
cv_basic_types[T_32PREAL32] = &symt_new_pointer(module, cv_basic_types[T_REAL32])->symt;
cv_basic_types[T_32PREAL64] = &symt_new_pointer(module, cv_basic_types[T_REAL64])->symt;
cv_basic_types[T_32PRCHAR] = &symt_new_pointer(module, cv_basic_types[T_RCHAR])->symt;
cv_basic_types[T_32PWCHAR] = &symt_new_pointer(module, cv_basic_types[T_WCHAR])->symt;
cv_basic_types[T_32PINT4] = &symt_new_pointer(module, cv_basic_types[T_INT4])->symt;
cv_basic_types[T_32PUINT4] = &symt_new_pointer(module, cv_basic_types[T_UINT4])->symt;
}
static int numeric_leaf(int* value, const unsigned short int* leaf)
{
unsigned short int type = *leaf++;
int length = 2;
if (type < LF_NUMERIC)
{
*value = type;
}
else
{
switch (type)
{
case LF_CHAR:
length += 1;
*value = *(const char*)leaf;
break;
case LF_SHORT:
length += 2;
*value = *(const short*)leaf;
break;
case LF_USHORT:
length += 2;
*value = *(const unsigned short*)leaf;
break;
case LF_LONG:
length += 4;
*value = *(const int*)leaf;
break;
case LF_ULONG:
length += 4;
*value = *(const unsigned int*)leaf;
break;
case LF_QUADWORD:
case LF_UQUADWORD:
length += 8;
*value = 0; /* FIXME */
break;
case LF_REAL32:
length += 4;
*value = 0; /* FIXME */
break;
case LF_REAL48:
length += 6;
*value = 0; /* FIXME */
break;
case LF_REAL64:
length += 8;
*value = 0; /* FIXME */
break;
case LF_REAL80:
length += 10;
*value = 0; /* FIXME */
break;
case LF_REAL128:
length += 16;
*value = 0; /* FIXME */
break;
case LF_COMPLEX32:
length += 4;
*value = 0; /* FIXME */
break;
case LF_COMPLEX64:
length += 8;
*value = 0; /* FIXME */
break;
case LF_COMPLEX80:
length += 10;
*value = 0; /* FIXME */
break;
case LF_COMPLEX128:
length += 16;
*value = 0; /* FIXME */
break;
case LF_VARSTRING:
length += 2 + *leaf;
*value = 0; /* FIXME */
break;
default:
FIXME("Unknown numeric leaf type %04x\n", type);
*value = 0;
break;
}
}
return length;
}
static const char* terminate_string(const unsigned char* name)
{
static char symname[256];
int namelen = name[0];
assert(namelen >= 0 && namelen < 256);
memcpy(symname, name + 1, namelen);
symname[namelen] = '\0';
return (!*symname || strcmp(symname, "__unnamed") == 0) ? NULL : symname;
}
static struct symt* codeview_get_type(unsigned int typeno, BOOL allow_special)
{
struct symt* symt = NULL;
/*
* Convert Codeview type numbers into something we can grok internally.
* Numbers < 0x1000 are all fixed builtin types. Numbers from 0x1000 and
* up are all user defined (structs, etc).
*/
if (typeno < 0x1000)
{
if (typeno < MAX_BUILTIN_TYPES)
symt = cv_basic_types[typeno];
}
else
{
if (typeno - 0x1000 < num_cv_defined_types)
symt = cv_defined_types[typeno - 0x1000];
}
if (!allow_special && symt && symt->tag == SymTagCVBitField)
FIXME("bitfields are only handled for UDTs\n");
return symt;
}
static int codeview_add_type(unsigned int typeno, struct symt* dt)
{
while (typeno - 0x1000 >= num_cv_defined_types)
{
num_cv_defined_types += 0x100;
if (cv_defined_types)
cv_defined_types = (struct symt**)
HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, cv_defined_types,
num_cv_defined_types * sizeof(struct symt*));
else
cv_defined_types = (struct symt**)
HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
num_cv_defined_types * sizeof(struct symt*));
if (cv_defined_types == NULL) return FALSE;
}
cv_defined_types[typeno - 0x1000] = dt;
return TRUE;
}
static void codeview_clear_type_table(void)
{
if (cv_defined_types) HeapFree(GetProcessHeap(), 0, cv_defined_types);
cv_defined_types = NULL;
num_cv_defined_types = 0;
if (cv_bitfields) HeapFree(GetProcessHeap(), 0, cv_bitfields);
cv_bitfields = NULL;
num_cv_bitfields = used_cv_bitfields = 0;
}
static int codeview_add_type_pointer(struct module* module, unsigned int typeno,
unsigned int datatype)
{
struct symt* symt = &symt_new_pointer(module, codeview_get_type(datatype, FALSE))->symt;
return codeview_add_type(typeno, symt);
}
static int codeview_add_type_array(struct module* module,
unsigned int typeno, const char* name,
unsigned int elemtype, unsigned int arr_len)
{
struct symt* symt;
struct symt* elem = codeview_get_type(elemtype, FALSE);
DWORD arr_max = 0;
if (elem)
{
DWORD elem_size;
symt_get_info(elem, TI_GET_LENGTH, &elem_size);
if (elem_size) arr_max = arr_len / elem_size;
}
symt = &symt_new_array(module, 0, arr_max, elem)->symt;
return codeview_add_type(typeno, symt);
}
static int codeview_add_type_bitfield(unsigned int typeno, unsigned int bitoff,
unsigned int nbits, unsigned int basetype)
{
if (used_cv_bitfields >= num_cv_bitfields)
{
num_cv_bitfields *= 2;
if (cv_bitfields)
cv_bitfields = HeapReAlloc(GetProcessHeap(), 0, cv_bitfields,
num_cv_bitfields * sizeof(struct codeview_bitfield));
else
cv_bitfields = HeapAlloc(GetProcessHeap(), 0,
num_cv_bitfields * sizeof(struct codeview_bitfield));
if (!cv_bitfields) return 0;
}
cv_bitfields[used_cv_bitfields].symt.tag = SymTagCVBitField;
cv_bitfields[used_cv_bitfields].subtype = basetype;
cv_bitfields[used_cv_bitfields].bitposition = bitoff;
cv_bitfields[used_cv_bitfields].bitlength = nbits;
return codeview_add_type(typeno, &cv_bitfields[used_cv_bitfields++].symt);
}
static int codeview_add_type_enum_field_list(struct module* module,
unsigned int typeno,
const unsigned char* list, int len)
{
struct symt_enum* symt;
const unsigned char* ptr = list;
symt = symt_new_enum(module, NULL);
while (ptr - list < len)
{
const union codeview_fieldtype* type = (const union codeview_fieldtype*)ptr;
if (*ptr >= 0xf0) /* LF_PAD... */
{
ptr += *ptr & 0x0f;
continue;
}
switch (type->generic.id)
{
case LF_ENUMERATE:
{
int value, vlen = numeric_leaf(&value, &type->enumerate.value);
const unsigned char* name = (const unsigned char*)&type->enumerate.value + vlen;
symt_add_enum_element(module, symt, terminate_string(name), value);
ptr += 2 + 2 + vlen + (1 + name[0]);
break;
}
default:
FIXME("Unhandled type %04x in ENUM field list\n", type->generic.id);
return FALSE;
}
}
return codeview_add_type(typeno, &symt->symt);
}
static int codeview_add_type_struct_field_list(struct module* module,
unsigned int typeno,
const unsigned char* list, int len)
{
struct symt_udt* symt;
const unsigned char* ptr = list;
symt = symt_new_udt(module, NULL, 0, UdtStruct /* don't care */);
while (ptr - list < len)
{
const union codeview_fieldtype* type = (const union codeview_fieldtype*)ptr;
if (*ptr >= 0xf0) /* LF_PAD... */
{
ptr +=* ptr & 0x0f;
continue;
}
switch (type->generic.id)
{
case LF_BCLASS:
{
int offset, olen = numeric_leaf(&offset, &type->bclass.offset);
/* FIXME: ignored for now */
ptr += 2 + 2 + 2 + olen;
break;
}
case LF_BCLASS_32:
{
int offset, olen = numeric_leaf(&offset, &type->bclass32.offset);
/* FIXME: ignored for now */
ptr += 2 + 2 + 4 + olen;
break;
}
case LF_VBCLASS:
case LF_IVBCLASS:
{
int vbpoff, vbplen = numeric_leaf(&vbpoff, &type->vbclass.vbpoff);
const unsigned short int* p_vboff = (const unsigned short int*)((const char*)&type->vbclass.vbpoff + vbpoff);
int vpoff, vplen = numeric_leaf(&vpoff, p_vboff);
/* FIXME: ignored for now */
ptr += 2 + 2 + 2 + 2 + vbplen + vplen;
break;
}
case LF_VBCLASS_32:
case LF_IVBCLASS_32:
{
int vbpoff, vbplen = numeric_leaf(&vbpoff, &type->vbclass32.vbpoff);
const unsigned short int* p_vboff = (const unsigned short int*)((const char*)&type->vbclass32.vbpoff + vbpoff);
int vpoff, vplen = numeric_leaf(&vpoff, p_vboff);
/* FIXME: ignored for now */
ptr += 2 + 2 + 4 + 4 + vbplen + vplen;
break;
}
case LF_MEMBER:
{
int offset, olen = numeric_leaf(&offset, &type->member.offset);
const unsigned char* name = (const unsigned char*)&type->member.offset + olen;
struct symt* subtype = codeview_get_type(type->member.type, TRUE);
if (!subtype || subtype->tag != SymTagCVBitField)
{
DWORD elem_size = 0;
if (subtype) symt_get_info(subtype, TI_GET_LENGTH, &elem_size);
symt_add_udt_element(module, symt, terminate_string(name),
subtype, offset << 3, elem_size << 3);
}
else
{
struct codeview_bitfield* cvbf = (struct codeview_bitfield*)subtype;
symt_add_udt_element(module, symt, terminate_string(name),
codeview_get_type(cvbf->subtype, FALSE),
cvbf->bitposition, cvbf->bitlength);
}
ptr += 2 + 2 + 2 + olen + (1 + name[0]);
break;
}
case LF_MEMBER_32:
{
int offset, olen = numeric_leaf(&offset, &type->member32.offset);
const unsigned char* name = (const unsigned char*)&type->member32.offset + olen;
struct symt* subtype = codeview_get_type(type->member32.type, TRUE);
if (!subtype || subtype->tag != SymTagCVBitField)
{
DWORD elem_size = 0;
if (subtype) symt_get_info(subtype, TI_GET_LENGTH, &elem_size);
symt_add_udt_element(module, symt, terminate_string(name),
subtype, offset << 3, elem_size << 3);
}
else
{
struct codeview_bitfield* cvbf = (struct codeview_bitfield*)subtype;
symt_add_udt_element(module, symt, terminate_string(name),
codeview_get_type(cvbf->subtype, FALSE),
cvbf->bitposition, cvbf->bitlength);
}
ptr += 2 + 2 + 4 + olen + (1 + name[0]);
break;
}
case LF_STMEMBER:
/* FIXME: ignored for now */
ptr += 2 + 2 + 2 + (1 + type->stmember.name[0]);
break;
case LF_STMEMBER_32:
/* FIXME: ignored for now */
ptr += 2 + 4 + 2 + (1 + type->stmember32.name[0]);
break;
case LF_METHOD:
/* FIXME: ignored for now */
ptr += 2 + 2 + 2 + (1 + type->method.name[0]);
break;
case LF_METHOD_32:
/* FIXME: ignored for now */
ptr += 2 + 2 + 4 + (1 + type->method32.name[0]);
break;
case LF_NESTTYPE:
/* FIXME: ignored for now */
ptr += 2 + 2 + (1 + type->nesttype.name[0]);
break;
case LF_NESTTYPE_32:
/* FIXME: ignored for now */
ptr += 2 + 2 + 4 + (1 + type->nesttype32.name[0]);
break;
case LF_VFUNCTAB:
/* FIXME: ignored for now */
ptr += 2 + 2;
break;
case LF_VFUNCTAB_32:
/* FIXME: ignored for now */
ptr += 2 + 2 + 4;
break;
case LF_ONEMETHOD:
/* FIXME: ignored for now */
switch ((type->onemethod.attribute >> 2) & 7)
{
case 4: case 6: /* (pure) introducing virtual method */
ptr += 2 + 2 + 2 + 4 + (1 + type->onemethod_virt.name[0]);
break;
default:
ptr += 2 + 2 + 2 + (1 + type->onemethod.name[0]);
break;
}
break;
case LF_ONEMETHOD_32:
/* FIXME: ignored for now */
switch ((type->onemethod32.attribute >> 2) & 7)
{
case 4: case 6: /* (pure) introducing virtual method */
ptr += 2 + 2 + 4 + 4 + (1 + type->onemethod32_virt.name[0]);
break;
default:
ptr += 2 + 2 + 4 + (1 + type->onemethod32.name[0]);
break;
}
break;
default:
FIXME("Unhandled type %04x in STRUCT field list\n", type->generic.id);
return FALSE;
}
}
return codeview_add_type(typeno, &symt->symt);
}
static int codeview_add_type_enum(struct module* module, unsigned int typeno,
const char* name, unsigned int fieldlist)
{
struct symt_enum* symt = symt_new_enum(module, name);
struct symt* list = codeview_get_type(fieldlist, FALSE);
/* FIXME: this is rather ugly !!! */
if (list) symt->vchildren = ((struct symt_enum*)list)->vchildren;
return codeview_add_type(typeno, &symt->symt);
}
static int codeview_add_type_struct(struct module* module, unsigned int typeno,
const char* name, int structlen,
unsigned int fieldlist, enum UdtKind kind)
{
struct symt_udt* symt = symt_new_udt(module, name, structlen, kind);
struct symt* list = codeview_get_type(fieldlist, FALSE);
/* FIXME: this is rather ugly !!! */
if (list) symt->vchildren = ((struct symt_udt*)list)->vchildren;
return codeview_add_type(typeno, &symt->symt);
}
static int codeview_parse_type_table(struct module* module, const char* table, int len)
{
unsigned int curr_type = 0x1000;
const char* ptr = table;
while (ptr - table < len)
{
const union codeview_type* type = (const union codeview_type*)ptr;
int retv = TRUE;
switch (type->generic.id)
{
case LF_POINTER:
retv = codeview_add_type_pointer(module, curr_type,
type->pointer.datatype);
break;
case LF_POINTER_32:
retv = codeview_add_type_pointer(module, curr_type,
type->pointer32.datatype);
break;
case LF_ARRAY:
{
int arrlen, alen = numeric_leaf(&arrlen, &type->array.arrlen);
const unsigned char* name = (const unsigned char*)&type->array.arrlen + alen;
retv = codeview_add_type_array(module, curr_type, terminate_string(name),
type->array.elemtype, arrlen);
break;
}
case LF_ARRAY_32:
{
int arrlen, alen = numeric_leaf(&arrlen, &type->array32.arrlen);
const unsigned char* name = (const unsigned char*)&type->array32.arrlen + alen;
retv = codeview_add_type_array(module, curr_type, terminate_string(name),
type->array32.elemtype,
type->array32.arrlen);
break;
}
/* a bitfields is a CodeView specific data type which represent a bitfield
* in a structure or a class. For now, we store it in a SymTag-like type
* (so that the rest of the process is seamless), but check at udt inclusion
* type for its presence
*/
case LF_BITFIELD:
retv = codeview_add_type_bitfield(curr_type, type->bitfield.bitoff,
type->bitfield.nbits,
type->bitfield.type);
break;
case LF_BITFIELD_32:
retv = codeview_add_type_bitfield(curr_type, type->bitfield32.bitoff,
type->bitfield32.nbits,
type->bitfield32.type);
break;
case LF_FIELDLIST:
case LF_FIELDLIST_32:
{
/*
* A 'field list' is a CodeView-specific data type which doesn't
* directly correspond to any high-level data type. It is used
* to hold the collection of members of a struct, class, union
* or enum type. The actual definition of that type will follow
* later, and refer to the field list definition record.
*
* As we don't have a field list type ourselves, we look ahead
* in the field list to try to find out whether this field list
* will be used for an enum or struct type, and create a dummy
* type of the corresponding sort. Later on, the definition of
* the 'real' type will copy the member / enumeration data.
*/
const char* list = type->fieldlist.list;
int len = (ptr + type->generic.len + 2) - list;
if (((union codeview_fieldtype*)list)->generic.id == LF_ENUMERATE)
retv = codeview_add_type_enum_field_list(module, curr_type, list, len);
else
retv = codeview_add_type_struct_field_list(module, curr_type, list, len);
break;
}
case LF_STRUCTURE:
case LF_CLASS:
{
int structlen, slen = numeric_leaf(&structlen, &type->structure.structlen);
const unsigned char* name = (const unsigned char*)&type->structure.structlen + slen;
retv = codeview_add_type_struct(module, curr_type, terminate_string(name),
structlen, type->structure.fieldlist,
type->generic.id == LF_CLASS ? UdtClass : UdtStruct);
break;
}
case LF_STRUCTURE_32:
case LF_CLASS_32:
{
int structlen, slen = numeric_leaf(&structlen, &type->structure32.structlen);
const unsigned char* name = (const unsigned char*)&type->structure32.structlen + slen;
retv = codeview_add_type_struct(module, curr_type, terminate_string(name),
structlen, type->structure32.fieldlist,
type->generic.id == LF_CLASS ? UdtClass : UdtStruct);
break;
}
case LF_UNION:
{
int un_len, ulen = numeric_leaf(&un_len, &type->t_union.un_len);
const unsigned char* name = (const unsigned char*)&type->t_union.un_len + ulen;
retv = codeview_add_type_struct(module, curr_type, terminate_string(name),
un_len, type->t_union.fieldlist, UdtUnion);
break;
}
case LF_UNION_32:
{
int un_len, ulen = numeric_leaf(&un_len, &type->t_union32.un_len);
const unsigned char* name = (const unsigned char*)&type->t_union32.un_len + ulen;
retv = codeview_add_type_struct(module, curr_type, terminate_string(name),
un_len, type->t_union32.fieldlist, UdtUnion);
break;
}
case LF_ENUM:
retv = codeview_add_type_enum(module, curr_type, terminate_string(type->enumeration.name),
type->enumeration.field);
break;
case LF_ENUM_32:
retv = codeview_add_type_enum(module, curr_type, terminate_string(type->enumeration32.name),
type->enumeration32.field);
break;
default:
FIXME("Unhandled leaf %x\n", type->generic.id);
break;
}
if (!retv)
return FALSE;
curr_type++;
ptr += type->generic.len + 2;
}
return TRUE;
}
/*========================================================================
* Process CodeView line number information.
*/
union any_size
{
const char* c;
const short* s;
const int* i;
const unsigned int* ui;
};
struct startend
{
unsigned int start;
unsigned int end;
};
struct codeview_linetab
{
unsigned int nline;
unsigned int segno;
unsigned int start;
unsigned int end;
struct symt_compiland* compiland;
const unsigned short* linetab;
const unsigned int* offtab;
};
static struct codeview_linetab* codeview_snarf_linetab(struct module* module,
const char* linetab, int size)
{
int file_segcount;
char filename[PATH_MAX];
const unsigned int* filetab;
const char* fn;
int i;
int k;
struct codeview_linetab* lt_hdr;
const unsigned int* lt_ptr;
int nfile;
int nseg;
union any_size pnt;
union any_size pnt2;
const struct startend* start;
int this_seg;
struct symt_compiland* compiland;
/*
* Now get the important bits.
*/
pnt.c = linetab;
nfile = *pnt.s++;
nseg = *pnt.s++;
filetab = (const unsigned int*) pnt.c;
/*
* Now count up the number of segments in the file.
*/
nseg = 0;
for (i = 0; i < nfile; i++)
{
pnt2.c = linetab + filetab[i];
nseg += *pnt2.s;
}
/*
* Next allocate the header we will be returning.
* There is one header for each segment, so that we can reach in
* and pull bits as required.
*/
lt_hdr = (struct codeview_linetab*)
HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (nseg + 1) * sizeof(*lt_hdr));
if (lt_hdr == NULL)
{
goto leave;
}
/*
* Now fill the header we will be returning, one for each segment.
* Note that this will basically just contain pointers into the existing
* line table, and we do not actually copy any additional information
* or allocate any additional memory.
*/
this_seg = 0;
for (i = 0; i < nfile; i++)
{
/*
* Get the pointer into the segment information.
*/
pnt2.c = linetab + filetab[i];
file_segcount = *pnt2.s;
pnt2.ui++;
lt_ptr = (const unsigned int*) pnt2.c;
start = (const struct startend*)(lt_ptr + file_segcount);
/*
* Now snarf the filename for all of the segments for this file.
*/
fn = (const unsigned char*)(start + file_segcount);
memset(filename, 0, sizeof(filename));
memcpy(filename, fn + 1, *fn);
compiland = symt_new_compiland(module, filename);
for (k = 0; k < file_segcount; k++, this_seg++)
{
pnt2.c = linetab + lt_ptr[k];
lt_hdr[this_seg].start = start[k].start;
lt_hdr[this_seg].end = start[k].end;
lt_hdr[this_seg].compiland = compiland;
lt_hdr[this_seg].segno = *pnt2.s++;
lt_hdr[this_seg].nline = *pnt2.s++;
lt_hdr[this_seg].offtab = pnt2.ui;
lt_hdr[this_seg].linetab = (const unsigned short*)(pnt2.ui + lt_hdr[this_seg].nline);
}
}
leave:
return lt_hdr;
}
/*========================================================================
* Process CodeView symbol information.
*/
union codeview_symbol
{
struct
{
short int len;
short int id;
} generic;
struct
{
short int len;
short int id;
unsigned int offset;
unsigned short seg;
unsigned short symtype;
unsigned char namelen;
unsigned char name[1];
} data;
struct
{
short int len;
short int id;
unsigned int symtype;
unsigned int offset;
unsigned short seg;
unsigned char namelen;
unsigned char name[1];
} data32;
struct
{
short int len;
short int id;
unsigned int pparent;
unsigned int pend;
unsigned int next;
unsigned int offset;
unsigned short segment;
unsigned short thunk_len;
unsigned char thtype;
unsigned char namelen;
unsigned char name[1];
} thunk;
struct
{
short int len;
short int id;
unsigned int pparent;
unsigned int pend;
unsigned int next;
unsigned int proc_len;
unsigned int debug_start;
unsigned int debug_end;
unsigned int offset;
unsigned short segment;
unsigned short proctype;
unsigned char flags;
unsigned char namelen;
unsigned char name[1];
} proc;
struct
{
short int len;
short int id;
unsigned int pparent;
unsigned int pend;
unsigned int next;
unsigned int proc_len;
unsigned int debug_start;
unsigned int debug_end;
unsigned int proctype;
unsigned int offset;
unsigned short segment;
unsigned char flags;
unsigned char namelen;
unsigned char name[1];
} proc32;
struct
{
short int len; /* Total length of this entry */
short int id; /* Always S_BPREL */
unsigned int offset; /* Stack offset relative to BP */
unsigned short symtype;
unsigned char namelen;
unsigned char name[1];
} stack;
struct
{
short int len; /* Total length of this entry */
short int id; /* Always S_BPREL_32 */
unsigned int offset; /* Stack offset relative to EBP */
unsigned int symtype;
unsigned char namelen;
unsigned char name[1];
} stack32;
struct
{
short int len; /* Total length of this entry */
short int id; /* Always S_REGISTER */
unsigned short type;
unsigned short reg;
unsigned char namelen;
unsigned char name[1];
/* don't handle register tracking */
} s_register;
struct
{
short int len; /* Total length of this entry */
short int id; /* Always S_REGISTER_32 */
unsigned int type; /* check whether type & reg are correct */
unsigned int reg;
unsigned char namelen;
unsigned char name[1];
/* don't handle register tracking */
} s_register32;
struct
{
short int len;
short int id;
unsigned int parent;
unsigned int end;
unsigned int length;
unsigned int offset;
unsigned short segment;
unsigned char namelen;
unsigned char name[1];
} block;
struct
{
short int len;
short int id;
unsigned int offset;
unsigned short segment;
unsigned char flags;
unsigned char namelen;
unsigned char name[1];
} label;
struct
{
short int len;
short int id;
unsigned short type;
unsigned short arrlen; /* numeric leaf */
#if 0
unsigned char namelen;
unsigned char name[1];
#endif
} constant;
struct
{
short int len;
short int id;
unsigned type;
unsigned short arrlen; /* numeric leaf */
#if 0
unsigned char namelen;
unsigned char name[1];
#endif
} constant32;
struct
{
short int len;
short int id;
unsigned short type;
unsigned char namelen;
unsigned char name[1];
} udt;
struct
{
short int len;
short int id;
unsigned type;
unsigned char namelen;
unsigned char name[1];
} udt32;
};
#define S_COMPILE 0x0001
#define S_REGISTER 0x0002
#define S_CONSTANT 0x0003
#define S_UDT 0x0004
#define S_SSEARCH 0x0005
#define S_END 0x0006
#define S_SKIP 0x0007
#define S_CVRESERVE 0x0008
#define S_OBJNAME 0x0009
#define S_ENDARG 0x000a
#define S_COBOLUDT 0x000b
#define S_MANYREG 0x000c
#define S_RETURN 0x000d
#define S_ENTRYTHIS 0x000e
#define S_BPREL 0x0200
#define S_LDATA 0x0201
#define S_GDATA 0x0202
#define S_PUB 0x0203
#define S_LPROC 0x0204
#define S_GPROC 0x0205
#define S_THUNK 0x0206
#define S_BLOCK 0x0207
#define S_WITH 0x0208
#define S_LABEL 0x0209
#define S_CEXMODEL 0x020a
#define S_VFTPATH 0x020b
#define S_REGREL 0x020c
#define S_LTHREAD 0x020d
#define S_GTHREAD 0x020e
#define S_PROCREF 0x0400
#define S_DATAREF 0x0401
#define S_ALIGN 0x0402
#define S_LPROCREF 0x0403
#define S_REGISTER_32 0x1001 /* Variants with new 32-bit type indices */
#define S_CONSTANT_32 0x1002
#define S_UDT_32 0x1003
#define S_COBOLUDT_32 0x1004
#define S_MANYREG_32 0x1005
#define S_BPREL_32 0x1006
#define S_LDATA_32 0x1007
#define S_GDATA_32 0x1008
#define S_PUB_32 0x1009
#define S_LPROC_32 0x100a
#define S_GPROC_32 0x100b
#define S_VFTTABLE_32 0x100c
#define S_REGREL_32 0x100d
#define S_LTHREAD_32 0x100e
#define S_GTHREAD_32 0x100f
static unsigned int codeview_map_offset(const struct msc_debug_info* msc_dbg,
unsigned int offset)
{
int nomap = msc_dbg->nomap;
const OMAP_DATA* omapp = msc_dbg->omapp;
int i;
if (!nomap || !omapp) return offset;
/* FIXME: use binary search */
for (i = 0; i < nomap - 1; i++)
if (omapp[i].from <= offset && omapp[i+1].from > offset)
return !omapp[i].to ? 0 : omapp[i].to + (offset - omapp[i].from);
return 0;
}
static const struct codeview_linetab*
codeview_get_linetab(const struct codeview_linetab* linetab,
unsigned seg, unsigned offset)
{
/*
* Check whether we have line number information
*/
if (linetab)
{
for (; linetab->linetab; linetab++)
if (linetab->segno == seg &&
linetab->start <= offset && linetab->end > offset)
break;
if (!linetab->linetab) linetab = NULL;
}
return linetab;
}
static unsigned codeview_get_address(const struct msc_debug_info* msc_dbg,
unsigned seg, unsigned offset)
{
int nsect = msc_dbg->nsect;
const IMAGE_SECTION_HEADER* sectp = msc_dbg->sectp;
if (!seg || seg > nsect) return 0;
return msc_dbg->module->module.BaseOfImage +
codeview_map_offset(msc_dbg, sectp[seg-1].VirtualAddress + offset);
}
static void codeview_add_func_linenum(struct module* module,
struct symt_function* func,
const struct codeview_linetab* linetab,
unsigned offset, unsigned size)
{
unsigned int i;
if (!linetab) return;
for (i = 0; i < linetab->nline; i++)
{
if (linetab->offtab[i] >= offset && linetab->offtab[i] < offset + size)
{
symt_add_func_line(module, func, linetab->compiland->source,
linetab->linetab[i], linetab->offtab[i] - offset);
}
}
}
static int codeview_snarf(const struct msc_debug_info* msc_dbg, const BYTE* root,
int offset, int size,
struct codeview_linetab* linetab)
{
struct symt_function* curr_func = NULL;
int i, length;
char symname[PATH_MAX];
const struct codeview_linetab* flt;
struct symt_block* block = NULL;
struct symt* symt;
/*
* Loop over the different types of records and whenever we
* find something we are interested in, record it and move on.
*/
for (i = offset; i < size; i += length)
{
const union codeview_symbol* sym = (const union codeview_symbol*)(root + i);
length = sym->generic.len + 2;
switch (sym->generic.id)
{
/*
* Global and local data symbols. We don't associate these
* with any given source file.
*/
case S_GDATA:
case S_LDATA:
memcpy(symname, sym->data.name, sym->data.namelen);
symname[sym->data.namelen] = '\0';
flt = codeview_get_linetab(linetab, sym->data.seg, sym->data.offset);
symt_new_global_variable(msc_dbg->module,
flt ? flt->compiland : NULL,
symname, sym->generic.id == S_LDATA,
codeview_get_address(msc_dbg, sym->data.seg, sym->data.offset),
0,
codeview_get_type(sym->data.symtype, FALSE));
break;
case S_GDATA_32:
case S_LDATA_32:
memcpy(symname, sym->data32.name, sym->data32.namelen);
symname[sym->data32.namelen] = '\0';
flt = codeview_get_linetab(linetab, sym->data32.seg, sym->data32.offset);
symt_new_global_variable(msc_dbg->module, flt ? flt->compiland : NULL,
symname, sym->generic.id == S_LDATA_32,
codeview_get_address(msc_dbg, sym->data32.seg, sym->data32.offset),
0,
codeview_get_type(sym->data32.symtype, FALSE));
break;
case S_PUB: /* FIXME is this really a 'data' structure ?? */
memcpy(symname, sym->data.name, sym->data.namelen);
symname[sym->data.namelen] = '\0';
flt = codeview_get_linetab(linetab, sym->data.seg, sym->data.offset);
symt_new_public(msc_dbg->module, flt ? flt->compiland : NULL,
symname,
codeview_get_address(msc_dbg, sym->data.seg, sym->data.offset),
0, TRUE /* FIXME */, TRUE /* FIXME */);
break;
case S_PUB_32: /* FIXME is this really a 'data32' structure ?? */
memcpy(symname, sym->data32.name, sym->data32.namelen);
symname[sym->data32.namelen] = '\0';
flt = codeview_get_linetab(linetab, sym->data32.seg, sym->data32.offset);
symt_new_public(msc_dbg->module, flt ? flt->compiland : NULL,
symname,
codeview_get_address(msc_dbg, sym->data32.seg, sym->data32.offset),
0, TRUE /* FIXME */, TRUE /* FIXME */);
break;
/*
* Sort of like a global function, but it just points
* to a thunk, which is a stupid name for what amounts to
* a PLT slot in the normal jargon that everyone else uses.
*/
case S_THUNK:
memcpy(symname, sym->thunk.name, sym->thunk.namelen);
symname[sym->thunk.namelen] = '\0';
flt = codeview_get_linetab(linetab, sym->thunk.segment, sym->thunk.offset);
symt_new_thunk(msc_dbg->module, flt ? flt->compiland : NULL,
symname, sym->thunk.thtype,
codeview_get_address(msc_dbg, sym->thunk.segment, sym->thunk.offset),
sym->thunk.thunk_len);
break;
/*
* Global and static functions.
*/
case S_GPROC:
case S_LPROC:
memcpy(symname, sym->proc.name, sym->proc.namelen);
symname[sym->proc.namelen] = '\0';
flt = codeview_get_linetab(linetab, sym->proc.segment, sym->proc.offset);
curr_func = symt_new_function(msc_dbg->module,
flt ? flt->compiland : NULL, symname,
codeview_get_address(msc_dbg, sym->proc.segment, sym->proc.offset),
sym->proc.proc_len,
codeview_get_type(sym->proc.proctype, FALSE));
codeview_add_func_linenum(msc_dbg->module, curr_func, flt,
sym->proc.offset, sym->proc.proc_len);
symt_add_function_point(msc_dbg->module, curr_func, SymTagFuncDebugStart, sym->proc.debug_start, NULL);
symt_add_function_point(msc_dbg->module, curr_func, SymTagFuncDebugEnd, sym->proc.debug_end, NULL);
break;
case S_GPROC_32:
case S_LPROC_32:
memcpy(symname, sym->proc32.name, sym->proc32.namelen);
symname[sym->proc32.namelen] = '\0';
flt = codeview_get_linetab(linetab, sym->proc32.segment, sym->proc32.offset);
curr_func = symt_new_function(msc_dbg->module,
flt ? flt->compiland : NULL, symname,
codeview_get_address(msc_dbg, sym->proc32.segment, sym->proc32.offset),
sym->proc32.proc_len,
codeview_get_type(sym->proc32.proctype, FALSE));
codeview_add_func_linenum(msc_dbg->module, curr_func, flt,
sym->proc32.offset, sym->proc32.proc_len);
symt_add_function_point(msc_dbg->module, curr_func, SymTagFuncDebugStart, sym->proc32.debug_start, NULL);
symt_add_function_point(msc_dbg->module, curr_func, SymTagFuncDebugEnd, sym->proc32.debug_end, NULL);
break;
/*
* Function parameters and stack variables.
*/
case S_BPREL:
memcpy(symname, sym->stack.name, sym->stack.namelen);
symname[sym->stack.namelen] = '\0';
symt_add_func_local(msc_dbg->module, curr_func, 0, sym->stack.offset,
block, codeview_get_type(sym->stack.symtype, FALSE),
symname);
break;
case S_BPREL_32:
memcpy(symname, sym->stack32.name, sym->stack32.namelen);
symname[sym->stack32.namelen] = '\0';
symt_add_func_local(msc_dbg->module, curr_func, 0, sym->stack32.offset,
block, codeview_get_type(sym->stack32.symtype, FALSE),
symname);
break;
case S_REGISTER:
memcpy(symname, sym->s_register.name, sym->s_register.namelen);
symname[sym->s_register.namelen] = '\0';
symt_add_func_local(msc_dbg->module, curr_func, 0, sym->s_register.reg,
block, codeview_get_type(sym->s_register.type, FALSE),
symname);
break;
case S_REGISTER_32:
memcpy(symname, sym->s_register32.name, sym->s_register32.namelen);
symname[sym->s_register32.namelen] = '\0';
symt_add_func_local(msc_dbg->module, curr_func, 0, sym->s_register32.reg,
block, codeview_get_type(sym->s_register32.type, FALSE),
symname);
break;
case S_BLOCK:
block = symt_open_func_block(msc_dbg->module, curr_func, block,
codeview_get_address(msc_dbg, sym->block.segment, sym->block.offset),
sym->block.length);
break;
case S_END:
if (block)
{
block = symt_close_func_block(msc_dbg->module, curr_func, block, 0);
}
else if (curr_func)
{
symt_normalize_function(msc_dbg->module, curr_func);
curr_func = NULL;
}
break;
case S_COMPILE:
TRACE("S-Compile %x %.*s\n", ((const BYTE*)sym)[4], ((const BYTE*)sym)[8], (const BYTE*)sym + 9);
break;
case S_OBJNAME:
TRACE("S-ObjName %.*s\n", ((const BYTE*)sym)[8], (const BYTE*)sym + 9);
break;
case S_LABEL:
memcpy(symname, sym->label.name, sym->label.namelen);
symname[sym->label.namelen] = '\0';
if (curr_func)
{
symt_add_function_point(msc_dbg->module, curr_func, SymTagLabel,
codeview_get_address(msc_dbg, sym->label.segment, sym->label.offset) - curr_func->address,
symname);
}
else FIXME("No current function for label %s\n", symname);
break;
#if 0
case S_CONSTANT_32:
{
int val, vlen;
char* ptr;
const char* x;
struct symt* se;
vlen = numeric_leaf(&val, &sym->constant32.arrlen);
ptr = (char*)&sym->constant32.arrlen + vlen;
se = codeview_get_type(sym->constant32.type, FALSE);
if (!se) x = "---";
else if (se->tag == SymTagEnum) x = ((struct symt_enum*)se)->name;
else x = "###";
FIXME("S-Constant %u %.*s %x (%s)\n",
val, ptr[0], ptr + 1, sym->constant32.type, x);
}
break;
#endif
case S_UDT:
symt = codeview_get_type(sym->udt.type, FALSE);
if (symt)
{
memcpy(symname, sym->udt.name, sym->udt.namelen);
symname[sym->udt.namelen] = '\0';
symt_new_typedef(msc_dbg->module, symt, symname);
}
else FIXME("S-Udt %.*s: couldn't find type 0x%x\n",
sym->udt.namelen, sym->udt.name, sym->udt.type);
break;
case S_UDT_32:
symt = codeview_get_type(sym->udt32.type, FALSE);
if (symt)
{
memcpy(symname, sym->udt32.name, sym->udt32.namelen);
symname[sym->udt32.namelen] = '\0';
symt_new_typedef(msc_dbg->module, symt, symname);
}
else FIXME("S-Udt %.*s: couldn't find type 0x%x\n",
sym->udt32.namelen, sym->udt32.name, sym->udt32.type);
break;
/*
* These are special, in that they are always followed by an
* additional length-prefixed string which is *not* included
* into the symbol length count. We need to skip it.
*/
case S_PROCREF:
case S_DATAREF:
case S_LPROCREF:
{
const BYTE* name = (const BYTE*)sym + length;
length += (*name + 1 + 3) & ~3;
}
break;
default:
FIXME("Unsupported id %x\n", sym->generic.id);
}
}
if (curr_func) symt_normalize_function(msc_dbg->module, curr_func);
if (linetab) HeapFree(GetProcessHeap(), 0, linetab);
return TRUE;
}
/*========================================================================
* Process PDB file.
*/
#pragma pack(1)
typedef struct _PDB_FILE
{
DWORD size;
DWORD unknown;
} PDB_FILE,* PPDB_FILE;
typedef struct _PDB_HEADER
{
CHAR ident[40];
DWORD signature;
DWORD blocksize;
WORD freelist;
WORD total_alloc;
PDB_FILE toc;
WORD toc_block[1];
} PDB_HEADER, *PPDB_HEADER;
typedef struct _PDB_TOC
{
DWORD nFiles;
PDB_FILE file[ 1 ];
} PDB_TOC, *PPDB_TOC;
typedef struct _PDB_ROOT
{
DWORD version;
DWORD TimeDateStamp;
DWORD unknown;
DWORD cbNames;
CHAR names[1];
} PDB_ROOT, *PPDB_ROOT;
typedef struct _PDB_TYPES_OLD
{
DWORD version;
WORD first_index;
WORD last_index;
DWORD type_size;
WORD file;
WORD pad;
} PDB_TYPES_OLD, *PPDB_TYPES_OLD;
typedef struct _PDB_TYPES
{
DWORD version;
DWORD type_offset;
DWORD first_index;
DWORD last_index;
DWORD type_size;
WORD file;
WORD pad;
DWORD hash_size;
DWORD hash_base;
DWORD hash_offset;
DWORD hash_len;
DWORD search_offset;
DWORD search_len;
DWORD unknown_offset;
DWORD unknown_len;
} PDB_TYPES, *PPDB_TYPES;
typedef struct _PDB_SYMBOL_RANGE
{
WORD segment;
WORD pad1;
DWORD offset;
DWORD size;
DWORD characteristics;
WORD index;
WORD pad2;
} PDB_SYMBOL_RANGE, *PPDB_SYMBOL_RANGE;
typedef struct _PDB_SYMBOL_RANGE_EX
{
WORD segment;
WORD pad1;
DWORD offset;
DWORD size;
DWORD characteristics;
WORD index;
WORD pad2;
DWORD timestamp;
DWORD unknown;
} PDB_SYMBOL_RANGE_EX, *PPDB_SYMBOL_RANGE_EX;
typedef struct _PDB_SYMBOL_FILE
{
DWORD unknown1;
PDB_SYMBOL_RANGE range;
WORD flag;
WORD file;
DWORD symbol_size;
DWORD lineno_size;
DWORD unknown2;
DWORD nSrcFiles;
DWORD attribute;
CHAR filename[1];
} PDB_SYMBOL_FILE, *PPDB_SYMBOL_FILE;
typedef struct _PDB_SYMBOL_FILE_EX
{
DWORD unknown1;
PDB_SYMBOL_RANGE_EX range;
WORD flag;
WORD file;
DWORD symbol_size;
DWORD lineno_size;
DWORD unknown2;
DWORD nSrcFiles;
DWORD attribute;
DWORD reserved[2];
CHAR filename[1];
} PDB_SYMBOL_FILE_EX, *PPDB_SYMBOL_FILE_EX;
typedef struct _PDB_SYMBOL_SOURCE
{
WORD nModules;
WORD nSrcFiles;
WORD table[1];
} PDB_SYMBOL_SOURCE, *PPDB_SYMBOL_SOURCE;
typedef struct _PDB_SYMBOL_IMPORT
{
DWORD unknown1;
DWORD unknown2;
DWORD TimeDateStamp;
DWORD nRequests;
CHAR filename[1];
} PDB_SYMBOL_IMPORT, *PPDB_SYMBOL_IMPORT;
typedef struct _PDB_SYMBOLS_OLD
{
WORD hash1_file;
WORD hash2_file;
WORD gsym_file;
WORD pad;
DWORD module_size;
DWORD offset_size;
DWORD hash_size;
DWORD srcmodule_size;
} PDB_SYMBOLS_OLD, *PPDB_SYMBOLS_OLD;
typedef struct _PDB_SYMBOLS
{
DWORD signature;
DWORD version;
DWORD unknown;
DWORD hash1_file;
DWORD hash2_file;
DWORD gsym_file;
DWORD module_size;
DWORD offset_size;
DWORD hash_size;
DWORD srcmodule_size;
DWORD pdbimport_size;
DWORD resvd[5];
} PDB_SYMBOLS, *PPDB_SYMBOLS;
#pragma pack()
static void* pdb_read(const BYTE* image, const WORD* block_list, int size)
{
const PDB_HEADER* pdb = (const PDB_HEADER*)image;
int i, nBlocks;
BYTE* buffer;
if (!size) return NULL;
nBlocks = (size + pdb->blocksize - 1) / pdb->blocksize;
buffer = HeapAlloc(GetProcessHeap(), 0, nBlocks * pdb->blocksize);
for (i = 0; i < nBlocks; i++)
memcpy(buffer + i * pdb->blocksize,
image + block_list[i] * pdb->blocksize, pdb->blocksize);
return buffer;
}
static void* pdb_read_file(const BYTE* image, const PDB_TOC* toc, DWORD fileNr)
{
const PDB_HEADER* pdb = (const PDB_HEADER*)image;
const WORD* block_list;
DWORD i;
if (!toc || fileNr >= toc->nFiles) return NULL;
block_list = (const WORD*) &toc->file[toc->nFiles];
for (i = 0; i < fileNr; i++)
block_list += (toc->file[i].size + pdb->blocksize - 1) / pdb->blocksize;
return pdb_read(image, block_list, toc->file[fileNr].size);
}
static void pdb_free(void* buffer)
{
HeapFree(GetProcessHeap(), 0, buffer);
}
static void pdb_convert_types_header(PDB_TYPES* types, const BYTE* image)
{
memset(types, 0, sizeof(PDB_TYPES));
if (!image) return;
if (*(const DWORD*)image < 19960000) /* FIXME: correct version? */
{
/* Old version of the types record header */
const PDB_TYPES_OLD* old = (const PDB_TYPES_OLD*)image;
types->version = old->version;
types->type_offset = sizeof(PDB_TYPES_OLD);
types->type_size = old->type_size;
types->first_index = old->first_index;
types->last_index = old->last_index;
types->file = old->file;
}
else
{
/* New version of the types record header */
*types = *(const PDB_TYPES*)image;
}
}
static void pdb_convert_symbols_header(PDB_SYMBOLS* symbols,
int* header_size, const BYTE* image)
{
memset(symbols, 0, sizeof(PDB_SYMBOLS));
if (!image) return;
if (*(const DWORD*)image != 0xffffffff)
{
/* Old version of the symbols record header */
const PDB_SYMBOLS_OLD* old = (const PDB_SYMBOLS_OLD*)image;
symbols->version = 0;
symbols->module_size = old->module_size;
symbols->offset_size = old->offset_size;
symbols->hash_size = old->hash_size;
symbols->srcmodule_size = old->srcmodule_size;
symbols->pdbimport_size = 0;
symbols->hash1_file = old->hash1_file;
symbols->hash2_file = old->hash2_file;
symbols->gsym_file = old->gsym_file;
*header_size = sizeof(PDB_SYMBOLS_OLD);
}
else
{
/* New version of the symbols record header */
*symbols = *(const PDB_SYMBOLS*)image;
*header_size = sizeof(PDB_SYMBOLS);
}
}
static BOOL CALLBACK pdb_match(char* file, void* user)
{
/* accept first file */
return FALSE;
}
static HANDLE open_pdb_file(const struct process* pcs, struct module* module,
const char* filename)
{
HANDLE h;
char dbg_file_path[MAX_PATH];
h = CreateFileA(filename, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
/* FIXME: should give more bits on the file to look at */
if (h == INVALID_HANDLE_VALUE &&
SymFindFileInPath(pcs->handle, NULL, (char*)filename, NULL, 0, 0, 0,
dbg_file_path, pdb_match, NULL))
{
h = CreateFileA(dbg_file_path, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
}
return (h == INVALID_HANDLE_VALUE) ? NULL : h;
}
static SYM_TYPE pdb_process_file(const struct process* pcs,
const struct msc_debug_info* msc_dbg,
const char* filename, DWORD timestamp)
{
SYM_TYPE sym_type = -1;
HANDLE hFile, hMap = NULL;
char* image = NULL;
PDB_HEADER* pdb = NULL;
PDB_TOC* toc = NULL;
PDB_ROOT* root = NULL;
char* types_image = NULL;
char* symbols_image = NULL;
PDB_TYPES types;
PDB_SYMBOLS symbols;
int header_size = 0;
char* modimage;
char* file;
TRACE("Processing PDB file %s\n", filename);
/*
* Open and map() .PDB file
*/
if ((hFile = open_pdb_file(pcs, msc_dbg->module, filename)) == NULL ||
((hMap = CreateFileMappingA(hFile, NULL, PAGE_READONLY, 0, 0, NULL)) == NULL) ||
((image = MapViewOfFile(hMap, FILE_MAP_READ, 0, 0, 0)) == NULL))
{
ERR("-Unable to peruse .PDB file %s\n", filename);
goto leave;
}
/*
* Read in TOC and well-known files
*/
pdb = (PPDB_HEADER)image;
toc = pdb_read(image, pdb->toc_block, pdb->toc.size);
root = pdb_read_file(image, toc, 1);
types_image = pdb_read_file(image, toc, 2);
symbols_image = pdb_read_file(image, toc, 3);
pdb_convert_types_header(&types, types_image);
pdb_convert_symbols_header(&symbols, &header_size, symbols_image);
if (!root)
{
ERR("-Unable to get root from .PDB file %s\n", filename);
goto leave;
}
/*
* Check for unknown versions
*/
switch (root->version)
{
case 19950623: /* VC 4.0 */
case 19950814:
case 19960307: /* VC 5.0 */
case 19970604: /* VC 6.0 */
break;
default:
ERR("-Unknown root block version %ld\n", root->version);
}
switch (types.version)
{
case 19950410: /* VC 4.0 */
case 19951122:
case 19961031: /* VC 5.0 / 6.0 */
break;
default:
ERR("-Unknown type info version %ld\n", types.version);
}
switch (symbols.version)
{
case 0: /* VC 4.0 */
case 19960307: /* VC 5.0 */
case 19970606: /* VC 6.0 */
break;
default:
ERR("-Unknown symbol info version %ld\n", symbols.version);
}
/* Check .PDB time stamp */
if (root->TimeDateStamp != timestamp)
{
ERR("-Wrong time stamp of .PDB file %s (0x%08lx, 0x%08lx)\n",
filename, root->TimeDateStamp, timestamp);
}
/* Read type table */
codeview_parse_type_table(msc_dbg->module, types_image + types.type_offset, types.type_size);
/* Read type-server .PDB imports */
if (symbols.pdbimport_size)
{
/* FIXME */
ERR("-Type server .PDB imports ignored!\n");
}
/* Read global symbol table */
modimage = pdb_read_file(image, toc, symbols.gsym_file);
if (modimage)
{
codeview_snarf(msc_dbg, modimage, 0, toc->file[symbols.gsym_file].size, NULL);
pdb_free(modimage);
}
/* Read per-module symbol / linenumber tables */
file = symbols_image + header_size;
while (file - symbols_image < header_size + symbols.module_size)
{
int file_nr, file_index, symbol_size, lineno_size;
char* file_name;
if (symbols.version < 19970000)
{
PDB_SYMBOL_FILE *sym_file = (PDB_SYMBOL_FILE*) file;
file_nr = sym_file->file;
file_name = sym_file->filename;
file_index = sym_file->range.index;
symbol_size = sym_file->symbol_size;
lineno_size = sym_file->lineno_size;
}
else
{
PDB_SYMBOL_FILE_EX *sym_file = (PDB_SYMBOL_FILE_EX*) file;
file_nr = sym_file->file;
file_name = sym_file->filename;
file_index = sym_file->range.index;
symbol_size = sym_file->symbol_size;
lineno_size = sym_file->lineno_size;
}
modimage = pdb_read_file(image, toc, file_nr);
if (modimage)
{
struct codeview_linetab* linetab = NULL;
if (lineno_size)
linetab = codeview_snarf_linetab(msc_dbg->module, modimage + symbol_size, lineno_size);
if (symbol_size)
codeview_snarf(msc_dbg, modimage, sizeof(DWORD), symbol_size, linetab);
pdb_free(modimage);
}
file_name += strlen(file_name) + 1;
file = (char*)((DWORD)(file_name + strlen(file_name) + 1 + 3) & ~3);
}
sym_type = SymCv;
leave:
/* Cleanup */
codeview_clear_type_table();
if (symbols_image) pdb_free(symbols_image);
if (types_image) pdb_free(types_image);
if (root) pdb_free(root);
if (toc) pdb_free(toc);
if (image) UnmapViewOfFile(image);
if (hMap) CloseHandle(hMap);
if (hFile) CloseHandle(hFile);
return sym_type;
}
/*========================================================================
* Process CodeView debug information.
*/
#define CODEVIEW_NB09_SIG ('N' | ('B' << 8) | ('0' << 16) | ('9' << 24))
#define CODEVIEW_NB10_SIG ('N' | ('B' << 8) | ('1' << 16) | ('0' << 24))
#define CODEVIEW_NB11_SIG ('N' | ('B' << 8) | ('1' << 16) | ('1' << 24))
typedef struct _CODEVIEW_HEADER
{
DWORD dwSignature;
DWORD lfoDirectory;
} CODEVIEW_HEADER,* PCODEVIEW_HEADER;
typedef struct _CODEVIEW_PDB_DATA
{
DWORD timestamp;
DWORD unknown;
CHAR name[1];
} CODEVIEW_PDB_DATA, *PCODEVIEW_PDB_DATA;
typedef struct _CV_DIRECTORY_HEADER
{
WORD cbDirHeader;
WORD cbDirEntry;
DWORD cDir;
DWORD lfoNextDir;
DWORD flags;
} CV_DIRECTORY_HEADER, *PCV_DIRECTORY_HEADER;
typedef struct _CV_DIRECTORY_ENTRY
{
WORD subsection;
WORD iMod;
DWORD lfo;
DWORD cb;
} CV_DIRECTORY_ENTRY, *PCV_DIRECTORY_ENTRY;
#define sstAlignSym 0x125
#define sstSrcModule 0x127
static SYM_TYPE codeview_process_info(const struct process* pcs,
const struct msc_debug_info* msc_dbg)
{
const CODEVIEW_HEADER* cv = (const CODEVIEW_HEADER*)msc_dbg->root;
SYM_TYPE sym_type = -1;
switch (cv->dwSignature)
{
case CODEVIEW_NB09_SIG:
case CODEVIEW_NB11_SIG:
{
const CV_DIRECTORY_HEADER* hdr = (const CV_DIRECTORY_HEADER*)(msc_dbg->root + cv->lfoDirectory);
const CV_DIRECTORY_ENTRY* ent;
const CV_DIRECTORY_ENTRY* prev;
const CV_DIRECTORY_ENTRY* next;
unsigned int i;
codeview_init_basic_types(msc_dbg->module);
ent = (const CV_DIRECTORY_ENTRY*)((const BYTE*)hdr + hdr->cbDirHeader);
for (i = 0; i < hdr->cDir; i++, ent = next)
{
next = (i == hdr->cDir-1)? NULL :
(const CV_DIRECTORY_ENTRY*)((const BYTE*)ent + hdr->cbDirEntry);
prev = (i == 0)? NULL :
(const CV_DIRECTORY_ENTRY*)((const BYTE*)ent - hdr->cbDirEntry);
if (ent->subsection == sstAlignSym)
{
/*
* Check the next and previous entry. If either is a
* sstSrcModule, it contains the line number info for
* this file.
*
* FIXME: This is not a general solution!
*/
struct codeview_linetab* linetab = NULL;
if (next && next->iMod == ent->iMod && next->subsection == sstSrcModule)
linetab = codeview_snarf_linetab(msc_dbg->module, msc_dbg->root + next->lfo, next->cb);
if (prev && prev->iMod == ent->iMod && prev->subsection == sstSrcModule)
linetab = codeview_snarf_linetab(msc_dbg->module, msc_dbg->root + prev->lfo, prev->cb);
codeview_snarf(msc_dbg, msc_dbg->root + ent->lfo, sizeof(DWORD),
ent->cb, linetab);
}
}
sym_type = SymCv;
break;
}
case CODEVIEW_NB10_SIG:
{
const CODEVIEW_PDB_DATA* pdb = (const CODEVIEW_PDB_DATA*)(cv + 1);
codeview_init_basic_types(msc_dbg->module);
sym_type = pdb_process_file(pcs, msc_dbg, pdb->name, pdb->timestamp);
break;
}
default:
ERR("Unknown CODEVIEW signature %08lX in module %s\n",
cv->dwSignature, msc_dbg->module->module.ModuleName);
break;
}
return sym_type;
}
/*========================================================================
* Process debug directory.
*/
SYM_TYPE pe_load_debug_directory(const struct process* pcs, struct module* module,
const BYTE* mapping, const IMAGE_DEBUG_DIRECTORY* dbg,
int nDbg)
{
SYM_TYPE sym_type;
int i;
struct msc_debug_info msc_dbg;
const IMAGE_NT_HEADERS* nth = RtlImageNtHeader((void*)mapping);
msc_dbg.module = module;
msc_dbg.nsect = nth->FileHeader.NumberOfSections;
msc_dbg.sectp = (const IMAGE_SECTION_HEADER*)((const char*)&nth->OptionalHeader + nth->FileHeader.SizeOfOptionalHeader);
msc_dbg.nomap = 0;
msc_dbg.omapp = NULL;
__TRY
{
sym_type = -1;
/* First, watch out for OMAP data */
for (i = 0; i < nDbg; i++)
{
if (dbg[i].Type == IMAGE_DEBUG_TYPE_OMAP_FROM_SRC)
{
msc_dbg.nomap = dbg[i].SizeOfData / sizeof(OMAP_DATA);
msc_dbg.omapp = (const OMAP_DATA*)(mapping + dbg[i].PointerToRawData);
break;
}
}
/* Now, try to parse CodeView debug info */
for (i = 0; i < nDbg; i++)
{
if (dbg[i].Type == IMAGE_DEBUG_TYPE_CODEVIEW)
{
msc_dbg.root = mapping + dbg[i].PointerToRawData;
sym_type = codeview_process_info(pcs, &msc_dbg);
if (sym_type == SymCv) goto done;
}
}
/* If not found, try to parse COFF debug info */
for (i = 0; i < nDbg; i++)
{
if (dbg[i].Type == IMAGE_DEBUG_TYPE_COFF)
{
msc_dbg.root = mapping + dbg[i].PointerToRawData;
sym_type = coff_process_info(&msc_dbg);
if (sym_type == SymCoff) goto done;
}
}
done:
#if 0
/* FIXME: this should be supported... this is the debug information for
* functions compiled without a frame pointer (FPO = frame pointer omission)
* the associated data helps finding out the relevant information
*/
for (i = 0; i < nDbg; i++)
if (dbg[i].Type == IMAGE_DEBUG_TYPE_FPO)
DEBUG_Printf("This guy has FPO information\n");
#define FRAME_FPO 0
#define FRAME_TRAP 1
#define FRAME_TSS 2
typedef struct _FPO_DATA
{
DWORD ulOffStart; /* offset 1st byte of function code */
DWORD cbProcSize; /* # bytes in function */
DWORD cdwLocals; /* # bytes in locals/4 */
WORD cdwParams; /* # bytes in params/4 */
WORD cbProlog : 8; /* # bytes in prolog */
WORD cbRegs : 3; /* # regs saved */
WORD fHasSEH : 1; /* TRUE if SEH in func */
WORD fUseBP : 1; /* TRUE if EBP has been allocated */
WORD reserved : 1; /* reserved for future use */
WORD cbFrame : 2; /* frame type */
} FPO_DATA;
#else
;
#endif
}
__EXCEPT(page_fault)
{
ERR("Got a page fault while loading symbols\n");
sym_type = -1;
}
__ENDTRY
return sym_type;
}
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