dbghelp: Enhanced x86_64 stack unwinding with PE's function table data.

dlls/dbghelp/cpu_i386.c

@@ -98,7 +98,7 @@ enum st_mode {stm_start, stm_32bit, stm_16bit, stm_done};
 #define curr_switch (frame->Reserved[__CurrentSwitch])
 #define next_switch (frame->Reserved[__NextSwitch])
 
-static BOOL i386_stack_walk(struct cpu_stack_walk* csw, LPSTACKFRAME64 frame)
+static BOOL i386_stack_walk(struct cpu_stack_walk* csw, LPSTACKFRAME64 frame, CONTEXT* context)
 {
     STACK32FRAME        frame32;
     STACK16FRAME        frame16;

dlls/dbghelp/cpu_ppc.c

@@ -48,7 +48,7 @@ static unsigned ppc_get_addr(HANDLE hThread, const CONTEXT* ctx,
     return FALSE;
 }
 
-static BOOL ppc_stack_walk(struct cpu_stack_walk* csw, LPSTACKFRAME64 frame)
+static BOOL ppc_stack_walk(struct cpu_stack_walk* csw, LPSTACKFRAME64 frame, CONTEXT* context)
 {
     FIXME("not done\n");
     return FALSE;

dlls/dbghelp/dbghelp_private.h

@@ -474,7 +474,7 @@ struct cpu
                             enum cpu_addr, ADDRESS64* addr);
 
     /* stack manipulation */
-    BOOL        (*stack_walk)(struct cpu_stack_walk* csw, LPSTACKFRAME64 frame);
+    BOOL        (*stack_walk)(struct cpu_stack_walk* csw, LPSTACKFRAME64 frame, CONTEXT* context);
 
     /* module manipulation */
     void*       (*find_runtime_function)(struct module*, DWORD64 addr);

dlls/dbghelp/stack.c

@@ -180,7 +180,7 @@ BOOL WINAPI StackWalk(DWORD MachineType, HANDLE hProcess, HANDLE hThread,
     csw.u.s32.f_tabl_acs = (FunctionTableAccessRoutine) ? FunctionTableAccessRoutine : SymFunctionTableAccess;
     csw.u.s32.f_modl_bas = (GetModuleBaseRoutine) ? GetModuleBaseRoutine : SymGetModuleBase;
 
-    if ((ret = cpu->stack_walk(&csw, &frame64)))
+    if ((ret = cpu->stack_walk(&csw, &frame64, ctx)))
     {
         addr_64to32(&frame64.AddrPC,     &frame32->AddrPC);
         addr_64to32(&frame64.AddrReturn, &frame32->AddrReturn);
@@ -236,7 +236,7 @@ BOOL WINAPI StackWalk64(DWORD MachineType, HANDLE hProcess, HANDLE hThread,
     csw.u.s64.f_tabl_acs = (FunctionTableAccessRoutine) ? FunctionTableAccessRoutine : SymFunctionTableAccess64;
     csw.u.s64.f_modl_bas = (GetModuleBaseRoutine) ? GetModuleBaseRoutine : SymGetModuleBase64;
 
-    if (!cpu->stack_walk(&csw, frame)) return FALSE;
+    if (!cpu->stack_walk(&csw, frame, ctx)) return FALSE;
 
     /* we don't handle KdHelp */
     frame->KdHelp.Thread = 0xC000FADE;