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* eval.c (evaluate_subexp_standard) [OP_OBJC_MSGCALL]: Support

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platforms that use function descriptors.  Prefer to use function
	pointer types instead of function types.
	* linespec.c (decode_objc): Support function descriptors.  Fully
	initialize SAL result.
	* objc-lang.c (find_methods): Support function descriptors.
	Do not require function symbol to point to text section.

	* ppc-sysv-tdep.c (ppc64_sysv_abi_push_dummy_call): When calling
	via a function pointer, use the descriptor it points to.
This commit is contained in:
Ulrich Weigand 2009-09-29 00:48:32 +00:00
parent 67f470de12
commit 69368a60a4
5 changed files with 61 additions and 20 deletions
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16
gdb/objc-lang.c
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@ -1173,16 +1173,18 @@ find_methods (struct symtab *symtab, char type,
ALL_OBJFILE_MSYMBOLS (objfile, msymbol)
{
struct gdbarch *gdbarch = get_objfile_arch (objfile);
CORE_ADDR pc = SYMBOL_VALUE_ADDRESS (msymbol);
QUIT;
if ((MSYMBOL_TYPE (msymbol) != mst_text)
&& (MSYMBOL_TYPE (msymbol) != mst_file_text))
/* Not a function or method. */
continue;
/* The minimal symbol might point to a function descriptor;
resolve it to the actual code address instead. */
pc = gdbarch_convert_from_func_ptr_addr (gdbarch, pc,
&current_target);
if (symtab)
if ((SYMBOL_VALUE_ADDRESS (msymbol) < BLOCK_START (block)) ||
(SYMBOL_VALUE_ADDRESS (msymbol) >= BLOCK_END (block)))
if (pc < BLOCK_START (block) || pc >= BLOCK_END (block))
/* Not in the specified symtab. */
continue;
@ -1221,7 +1223,7 @@ find_methods (struct symtab *symtab, char type,
((nselector == NULL) || (strcmp (selector, nselector) != 0)))
continue;
sym = find_pc_function (SYMBOL_VALUE_ADDRESS (msymbol));
sym = find_pc_function (pc);
if (sym != NULL)
{
const char *newsymname = SYMBOL_NATURAL_NAME (sym);