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dbghelp: Revisit array len description for debug format parsers.

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One can now pass -1 as array len so that its size will be computed
later on (useful for dealing with forward declarations where size is
not known at array definition).
This commit is contained in:
Eric Pouech 2009-11-21 16:35:10 +01:00 committed by Alexandre Julliard
parent d974a4b29f
commit 9d80b19e83
3 changed files with 19 additions and 13 deletions
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2
dlls/dbghelp/dbghelp_private.h
View file

@ -246,7 +246,7 @@ struct symt_array
{
struct symt symt;
int start;
int end;
int end; /* end index if > 0, or -array_len (in bytes) if < 0 */
struct symt* base_type;
struct symt* index_type;
};

9
dlls/dbghelp/msc.c
View file

@ -586,15 +586,8 @@ static struct symt* codeview_add_type_array(struct codeview_type_parse* ctp,
{
struct symt* elem = codeview_fetch_type(ctp, elemtype, FALSE);
struct symt* index = codeview_fetch_type(ctp, indextype, FALSE);
DWORD arr_max = 0;
if (elem)
{
DWORD64 elem_size;
symt_get_info(elem, TI_GET_LENGTH, &elem_size);
if (elem_size) arr_max = arr_len / (DWORD)elem_size;
}
return &symt_new_array(ctp->module, 0, arr_max, elem, index)->symt;
return &symt_new_array(ctp->module, 0, -arr_len, elem, index)->symt;
}
static int codeview_add_type_enum_field_list(struct module* module,

21
dlls/dbghelp/type.c
View file

@ -304,6 +304,21 @@ struct symt_array* symt_new_array(struct module* module, int min, int max,
return sym;
}
static inline DWORD symt_array_count(const struct symt_array* array)
{
if (array->end < 0)
{
DWORD64 elem_size;
/* One could want to also set the array->end field in array, but we won't do it
* as long as all the get_type() helpers use const objects
*/
if (symt_get_info(array->base_type, TI_GET_LENGTH, &elem_size) && elem_size)
return -array->end / (DWORD)elem_size;
return 0;
}
return array->end - array->start + 1;
}
struct symt_function_signature* symt_new_function_signature(struct module* module,
struct symt* ret_type,
enum CV_call_e call_conv)
@ -597,8 +612,7 @@ BOOL symt_get_info(const struct symt* type, IMAGEHLP_SYMBOL_TYPE_INFO req,
switch (type->tag)
{
case SymTagArrayType:
X(DWORD) = ((const struct symt_array*)type)->end -
((const struct symt_array*)type)->start + 1;
X(DWORD) = symt_array_count((const struct symt_array*)type);
break;
case SymTagFunctionType:
/* this seems to be wrong for (future) C++ methods, where 'this' parameter
@ -643,8 +657,7 @@ BOOL symt_get_info(const struct symt* type, IMAGEHLP_SYMBOL_TYPE_INFO req,
if (!symt_get_info(((const struct symt_array*)type)->base_type,
TI_GET_LENGTH, pInfo))
return FALSE;
X(DWORD64) *= ((const struct symt_array*)type)->end -
((const struct symt_array*)type)->start + 1;
X(DWORD64) *= symt_array_count((const struct symt_array*)type);
break;
case SymTagPublicSymbol:
X(DWORD64) = ((const struct symt_public*)type)->size;