/******************************************************************
* stack_get_current_symbol
*
* Retrieves the symbol information for the current frame element
*/
BOOL stack_get_current_symbol(SYMBOL_INFO* symbol)
{
IMAGEHLP_STACK_FRAME ihsf;
DWORD64 disp;
if (!stack_get_current_frame(&ihsf)) return FALSE;
return SymFromAddr(dbg_curr_process->handle, ihsf.InstructionOffset,
&disp, symbol);
}
int symbol_info_locals(void)
{
IMAGEHLP_STACK_FRAME ihsf;
ADDRESS64 addr;
stack_get_current_frame(&ihsf);
addr.Mode = AddrModeFlat;
addr.Offset = ihsf.InstructionOffset;
print_address(&addr, FALSE);
dbg_printf(": (%08lx)\n", (DWORD_PTR)ihsf.FrameOffset);
SymEnumSymbols(dbg_curr_process->handle, 0, NULL, info_locals_cb, (void*)(DWORD_PTR)ihsf.FrameOffset);
return TRUE;
}
BOOL symbol_is_local(const char* name)
{
struct sgv_data sgv;
IMAGEHLP_STACK_FRAME ihsf;
sgv.num = 0;
sgv.num_thunks = 0;
sgv.name = name;
sgv.do_thunks = FALSE;
if (stack_get_current_frame(&ihsf))
{
sgv.frame_offset = ihsf.FrameOffset;
SymEnumSymbols(dbg_curr_process->handle, 0, name, sgv_cb, (void*)&sgv);
}
return sgv.num > 0;
}
static BOOL stack_set_frame_internal(int newframe)
{
if (newframe >= dbg_curr_thread->num_frames)
newframe = dbg_curr_thread->num_frames - 1;
if (newframe < 0)
newframe = 0;
if (dbg_curr_thread->curr_frame != newframe)
{
IMAGEHLP_STACK_FRAME ihsf;
dbg_curr_thread->curr_frame = newframe;
stack_get_current_frame(&ihsf);
SymSetContext(dbg_curr_process->handle, &ihsf, NULL);
}
return TRUE;
}
/***********************************************************************
* symbol_get_lvalue
*
* Get the address of a named symbol.
* Return values:
* sglv_found: if the symbol is found
* sglv_unknown: if the symbol isn't found
* sglv_aborted: some error occurred (likely, many symbols of same name exist,
* and user didn't pick one of them)
*/
enum sym_get_lval symbol_get_lvalue(const char* name, const int lineno,
struct dbg_lvalue* rtn, BOOL bp_disp)
{
struct sgv_data sgv;
int i;
char buffer[512];
DWORD opt;
IMAGEHLP_STACK_FRAME ihsf;
if (strlen(name) + 4 > sizeof(buffer))
{
WINE_WARN("Too long symbol (%s)\n", name);
return sglv_unknown;
}
sgv.num = 0;
sgv.num_thunks = 0;
sgv.name = &buffer[2];
sgv.do_thunks = DBG_IVAR(AlwaysShowThunks);
if (strchr(name, '!'))
{
strcpy(buffer, name);
}
else
{
buffer[0] = '*';
buffer[1] = '!';
strcpy(&buffer[2], name);
}
/* this is a wine specific options to return also ELF modules in the
* enumeration
*/
SymSetOptions((opt = SymGetOptions()) | 0x40000000);
SymEnumSymbols(dbg_curr_process->handle, 0, buffer, sgv_cb, (void*)&sgv);
if (!sgv.num)
{
const char* ptr = strchr(name, '!');
if ((ptr && ptr[1] != '_') || (!ptr && *name != '_'))
{
if (ptr)
{
int offset = ptr - name;
memcpy(buffer, name, offset + 1);
buffer[offset + 1] = '_';
strcpy(&buffer[offset + 2], ptr + 1);
}
else
{
buffer[0] = '*';
buffer[1] = '!';
buffer[2] = '_';
strcpy(&buffer[3], name);
}
SymEnumSymbols(dbg_curr_process->handle, 0, buffer, sgv_cb, (void*)&sgv);
}
}
SymSetOptions(opt);
/* now grab local symbols */
if (stack_get_current_frame(&ihsf) && sgv.num < NUMDBGV)
{
sgv.frame_offset = ihsf.FrameOffset;
SymEnumSymbols(dbg_curr_process->handle, 0, name, sgv_cb, (void*)&sgv);
}
if (!sgv.num)
{
dbg_printf("No symbols found for %s\n", name);
return sglv_unknown;
}
/* recompute potential offsets for functions (linenumber, skip prolog) */
for (i = 0; i < sgv.num; i++)
{
if (sgv.syms[i].flags & (SYMFLAG_REGISTER|SYMFLAG_REGREL|SYMFLAG_LOCAL|SYMFLAG_THUNK))
continue;
if (lineno == -1)
{
struct dbg_type type;
ULONG64 addr;
type.module = sgv.syms[i].lvalue.type.module;
type.id = sgv.syms[i].sym_info;
if (bp_disp && symbol_get_debug_start(&type, &addr))
sgv.syms[i].lvalue.addr.Offset = addr;
}
else
{
DWORD disp;
IMAGEHLP_LINE il;
BOOL found = FALSE;
il.SizeOfStruct = sizeof(il);
SymGetLineFromAddr(dbg_curr_process->handle,
(DWORD)memory_to_linear_addr(&sgv.syms[i].lvalue.addr),
&disp, &il);
do
{
if (lineno == il.LineNumber)
{
sgv.syms[i].lvalue.addr.Offset = il.Address;
found = TRUE;
break;
}
} while (SymGetLineNext(dbg_curr_process->handle, &il));
if (!found)
WINE_FIXME("No line (%d) found for %s (setting to symbol start)\n",
lineno, name);
}
}
i = 0;
if (dbg_interactiveP)
{
if (sgv.num - sgv.num_thunks > 1 || /* many symbols non thunks (and showing only non thunks) */
(sgv.num > 1 && DBG_IVAR(AlwaysShowThunks)) || /* many symbols (showing symbols & thunks) */
(sgv.num == sgv.num_thunks && sgv.num_thunks > 1))
{
dbg_printf("Many symbols with name '%s', "
"choose the one you want (<cr> to abort):\n", name);
for (i = 0; i < sgv.num; i++)
{
if (sgv.num - sgv.num_thunks > 1 && (sgv.syms[i].flags & SYMFLAG_THUNK) && !DBG_IVAR(AlwaysShowThunks))
continue;
dbg_printf("[%d]: ", i + 1);
if (sgv.syms[i].flags & SYMFLAG_LOCAL)
{
dbg_printf("%s %sof %s\n",
sgv.syms[i].flags & SYMFLAG_PARAMETER ? "Parameter" : "Local variable",
sgv.syms[i].flags & (SYMFLAG_REGISTER|SYMFLAG_REGREL) ? "(in a register) " : "",
name);
}
else if (sgv.syms[i].flags & SYMFLAG_THUNK)
{
print_address(&sgv.syms[i].lvalue.addr, TRUE);
/* FIXME: should display where the thunks points to */
dbg_printf(" thunk %s\n", name);
}
else
{
print_address(&sgv.syms[i].lvalue.addr, TRUE);
dbg_printf("\n");
}
}
do
{
i = 0;
if (input_read_line("=> ", buffer, sizeof(buffer)))
{
if (buffer[0] == '\0') return sglv_aborted;
i = atoi(buffer);
if (i < 1 || i > sgv.num)
dbg_printf("Invalid choice %d\n", i);
}
else return sglv_aborted;
} while (i < 1 || i > sgv.num);
/* The array is 0-based, but the choices are 1..n,
* so we have to subtract one before returning.
*/
i--;
}
}
else
{
/* FIXME: could display the list of non-picked up symbols */
if (sgv.num > 1)
dbg_printf("More than one symbol named %s, picking the first one\n", name);
}
*rtn = sgv.syms[i].lvalue;
return sglv_found;
}
/***********************************************************************
* symbol_get_lvalue
*
* Get the address of a named symbol.
* Return values:
* sglv_found: if the symbol is found
* sglv_unknown: if the symbol isn't found
* sglv_aborted: some error occurred (likely, many symbols of same name exist,
* and user didn't pick one of them)
*/
enum sym_get_lval symbol_get_lvalue(const char* name, const int lineno,
struct dbg_lvalue* rtn, BOOL bp_disp)
{
struct sgv_data sgv;
int i;
char buffer[512];
DWORD opt;
IMAGEHLP_STACK_FRAME ihsf;
if (strlen(name) + 4 > sizeof(buffer))
{
WINE_WARN("Too long symbol (%s)\n", name);
return sglv_unknown;
}
sgv.num = 0;
sgv.num_thunks = 0;
sgv.name = &buffer[2];
sgv.do_thunks = DBG_IVAR(AlwaysShowThunks);
if (strchr(name, '!'))
{
strcpy(buffer, name);
}
else
{
buffer[0] = '*';
buffer[1] = '!';
strcpy(&buffer[2], name);
}
/* this is a wine specific options to return also ELF modules in the
* enumeration
*/
SymSetOptions((opt = SymGetOptions()) | 0x40000000);
SymEnumSymbols(dbg_curr_process->handle, 0, buffer, sgv_cb, (void*)&sgv);
if (!sgv.num)
{
const char* ptr = strchr(name, '!');
if ((ptr && ptr[1] != '_') || (!ptr && *name != '_'))
{
if (ptr)
{
int offset = ptr - name;
memcpy(buffer, name, offset + 1);
buffer[offset + 1] = '_';
strcpy(&buffer[offset + 2], ptr + 1);
}
else
{
buffer[0] = '*';
buffer[1] = '!';
buffer[2] = '_';
strcpy(&buffer[3], name);
}
SymEnumSymbols(dbg_curr_process->handle, 0, buffer, sgv_cb, (void*)&sgv);
}
}
SymSetOptions(opt);
/* now grab local symbols */
if (stack_get_current_frame(&ihsf) && sgv.num < NUMDBGV)
{
sgv.frame_offset = ihsf.FrameOffset;
SymEnumSymbols(dbg_curr_process->handle, 0, name, sgv_cb, (void*)&sgv);
}
if (!sgv.num)
{
dbg_printf("No symbols found for %s\n", name);
return sglv_unknown;
}
/* recompute potential offsets for functions (linenumber, skip prolog) */
for (i = 0; i < sgv.num; i++)
{
if (sgv.syms[i].flags & (SYMFLAG_REGISTER|SYMFLAG_REGREL|SYMFLAG_LOCAL|SYMFLAG_THUNK))
continue;
if (lineno == -1)
{
struct dbg_type type;
ULONG64 addr;
type.module = sgv.syms[i].lvalue.type.module;
type.id = sgv.syms[i].sym_info;
if (bp_disp && symbol_get_debug_start(&type, &addr))
sgv.syms[i].lvalue.addr.Offset = addr;
}
else
{
DWORD disp;
IMAGEHLP_LINE64 il;
BOOL found = FALSE;
il.SizeOfStruct = sizeof(il);
SymGetLineFromAddr64(dbg_curr_process->handle,
(DWORD_PTR)memory_to_linear_addr(&sgv.syms[i].lvalue.addr),
&disp, &il);
do
{
if (lineno == il.LineNumber)
{
sgv.syms[i].lvalue.addr.Offset = il.Address;
found = TRUE;
break;
}
} while (SymGetLineNext64(dbg_curr_process->handle, &il));
if (!found)
WINE_FIXME("No line (%d) found for %s (setting to symbol start)\n",
lineno, name);
}
}
if (sgv.num - sgv.num_thunks > 1 || /* many symbols non thunks (and showing only non thunks) */
(sgv.num > 1 && DBG_IVAR(AlwaysShowThunks)) || /* many symbols (showing symbols & thunks) */
(sgv.num == sgv.num_thunks && sgv.num_thunks > 1))
{
return symbol_current_picker(name, &sgv, rtn);
}
/* first symbol is the one we want:
* - only one symbol found,
* - or many symbols but only one non thunk when AlwaysShowThunks is FALSE
*/
*rtn = sgv.syms[0].lvalue;
return sglv_found;
}
