Fix import of DBGHELP:

- StackWalk is now compilable.
- SymInitialize shouldn't try to find Wine loader.

svn path=/trunk/; revision=12756

reactos/lib/dbghelp/dbghelp.c

@@ -230,14 +230,17 @@ BOOL WINAPI SymInitialize(HANDLE hProcess, PSTR UserSearchPath, BOOL fInvadeProc
 
     if (fInvadeProcess)
     {
+#ifndef __REACTOS__
         if (!elf_read_wine_loader_dbg_info(pcs))
         {
             SymCleanup(hProcess);
             return FALSE;
         }
+#endif
         process_invade(hProcess);
         elf_synchronize_module_list(pcs);
     }
+    DbgPrint("SymInitialize - Success\n");
     return TRUE;
 }
 

reactos/lib/dbghelp/stack.c

@@ -33,9 +33,7 @@
 #include "thread.h" /* FIXME: must be included before winternl.h */
 #include "winternl.h"
 #include "wine/debug.h"
-#ifndef __REACTOS__
 #include "stackframe.h"
-#endif
 
 WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
 
@@ -78,7 +76,6 @@ BOOL WINAPI StackWalk(DWORD MachineType, HANDLE hProcess, HANDLE hThread,
                       PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
                       PTRANSLATE_ADDRESS_ROUTINE f_xlat_adr)
 {
-#ifndef __REACTOS__
     STACK32FRAME        frame32;
     STACK16FRAME        frame16;
     char                ch;
@@ -388,8 +385,4 @@ BOOL WINAPI StackWalk(DWORD MachineType, HANDLE hProcess, HANDLE hThread,
 done_err:
     curr_mode = stm_done;
     return FALSE;
-#else
-    /* FIXME */
-    return FALSE;
-#endif
 }

reactos/lib/dbghelp/stackframe.h

@@ -0,0 +1,94 @@
+/*
+ * 16-bit and 32-bit mode stack frame layout
+ *
+ * Copyright 1995, 1998 Alexandre Julliard
+ *
+ * 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
+ */
+
+#ifndef __WINE_STACKFRAME_H
+#define __WINE_STACKFRAME_H
+
+#include <string.h>
+#include <winnt.h>
+#include <excpt.h>
+
+#define SELECTOROF(ptr)     (HIWORD(ptr))
+#define OFFSETOF(ptr)       (LOWORD(ptr))
+
+#include <pshpack1.h>
+
+  /* 32-bit stack layout after CallTo16() */
+typedef struct _STACK32FRAME
+{
+    DWORD   restore_addr;   /* 00 return address for restoring code selector */
+    DWORD   codeselector;   /* 04 code selector to restore */
+    EXCEPTION_REGISTRATION_RECORD frame;  /* 08 Exception frame */
+    SEGPTR  frame16;        /* 10 16-bit frame from last CallFrom16() */
+    DWORD   edi;            /* 14 saved registers */
+    DWORD   esi;            /* 18 */
+    DWORD   ebx;            /* 1c */
+    DWORD   ebp;            /* 20 saved 32-bit frame pointer */
+    DWORD   retaddr;        /* 24 return address */
+    DWORD   target;         /* 28 target address / CONTEXT86 pointer */
+    DWORD   nb_args;        /* 2c number of 16-bit argument bytes */
+} STACK32FRAME;
+
+  /* 16-bit stack layout after CallFrom16() */
+typedef struct _STACK16FRAME
+{
+    STACK32FRAME *frame32;        /* 00 32-bit frame from last CallTo16() */
+    DWORD         edx;            /* 04 saved registers */
+    DWORD         ecx;            /* 08 */
+    DWORD         ebp;            /* 0c */
+    WORD          ds;             /* 10 */
+    WORD          es;             /* 12 */
+    WORD          fs;             /* 14 */
+    WORD          gs;             /* 16 */
+    DWORD         callfrom_ip;    /* 18 callfrom tail IP */
+    DWORD         module_cs;      /* 1c module code segment */
+    DWORD         relay;          /* 20 relay function address */
+    WORD          entry_ip;       /* 22 entry point IP */
+    DWORD         entry_point;    /* 26 API entry point to call, reused as mutex count */
+    WORD          bp;             /* 2a 16-bit stack frame chain */
+    WORD          ip;             /* 2c return address */
+    WORD          cs;             /* 2e */
+} STACK16FRAME;
+
+#include <poppack.h>
+
+#define CURRENT_STACK16      ((STACK16FRAME*)MapSL(NtCurrentTeb()->cur_stack))
+#define CURRENT_DS           (CURRENT_STACK16->ds)
+
+/* Push bytes on the 16-bit stack of a thread;
+ * return a segptr to the first pushed byte
+ */
+static inline SEGPTR stack16_push( int size )
+{
+    STACK16FRAME *frame = CURRENT_STACK16;
+    memmove( (char*)frame - size, frame, sizeof(*frame) );
+    NtCurrentTeb()->cur_stack -= size;
+    return (SEGPTR)(NtCurrentTeb()->cur_stack + sizeof(*frame));
+}
+
+/* Pop bytes from the 16-bit stack of a thread */
+static inline void stack16_pop( int size )
+{
+    STACK16FRAME *frame = CURRENT_STACK16;
+    memmove( (char*)frame + size, frame, sizeof(*frame) );
+    NtCurrentTeb()->cur_stack += size;
+}
+
+#endif /* __WINE_STACKFRAME_H */

reactos/lib/dbghelp/type.c

@@ -755,9 +755,7 @@ BOOL WINAPI SymGetTypeInfo(HANDLE hProcess, DWORD64 ModBase,
     module = module_find_by_addr(pcs, ModBase, DMT_UNKNOWN);
     if (!(module = module_get_debug(pcs, module)))
     {
-#ifndef __REACTOS__
         FIXME("Someone didn't properly set ModBase (%s)\n", wine_dbgstr_longlong(ModBase));
-#endif
         return FALSE;
     }