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xtensa.c (xtensa_multibss_section_type_flags): Add ATTRIBUTE_UNUSED. 

* config/xtensa/xtensa.c (xtensa_multibss_section_type_flags): Add
	ATTRIBUTE_UNUSED.
	(call_insn_operand): For PIC, don't allow a direct call to a
	function in a different section than the current one.

From-SVN: r71415
This commit is contained in:
Bob Wilson 2003-09-15 23:19:21 +00:00 committed by Bob Wilson
parent fb0317c6ea
commit cadafd1ffd
2 changed files with 39 additions and 3 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2003-09-15 Bob Wilson <bob.wilson@acm.org>
* config/xtensa/xtensa.c (xtensa_multibss_section_type_flags): Add
ATTRIBUTE_UNUSED.
(call_insn_operand): For PIC, don't allow a direct call to a
function in a different section than the current one.
2003-09-16 Volker Reichelt <reichelt@igpm.rwth-aachen.de>
* doc/invoke.texi (Warning Options): Add missing hyphen before

35
gcc/config/xtensa/xtensa.c
View File

@ -200,7 +200,7 @@ static struct machine_function * xtensa_init_machine_status PARAMS ((void));
static void printx PARAMS ((FILE *, signed int));
static void xtensa_function_epilogue PARAMS ((FILE *, HOST_WIDE_INT));
static unsigned int xtensa_multibss_section_type_flags
PARAMS ((tree, const char *, int));
PARAMS ((tree, const char *, int)) ATTRIBUTE_UNUSED;
static void xtensa_select_rtx_section
PARAMS ((enum machine_mode, rtx, unsigned HOST_WIDE_INT));
static bool xtensa_rtx_costs PARAMS ((rtx, int, int, int *));
@ -581,8 +581,37 @@ call_insn_operand (op, mode)
if (CONSTANT_ADDRESS_P (op))
{
/* Direct calls only allowed to static functions with PIC. */
return (!flag_pic
|| (GET_CODE (op) == SYMBOL_REF && SYMBOL_REF_LOCAL_P (op)));
if (flag_pic)
{
tree callee, callee_sec, caller_sec;
if (GET_CODE (op) != SYMBOL_REF || !SYMBOL_REF_LOCAL_P (op))
return FALSE;
/* Don't attempt a direct call if the callee is known to be in
a different section, since there's a good chance it will be
out of range. */
if (flag_function_sections
|| DECL_ONE_ONLY (current_function_decl))
return FALSE;
caller_sec = DECL_SECTION_NAME (current_function_decl);
callee = SYMBOL_REF_DECL (op);
if (callee)
{
if (DECL_ONE_ONLY (callee))
return FALSE;
callee_sec = DECL_SECTION_NAME (callee);
if (((caller_sec == NULL_TREE) ^ (callee_sec == NULL_TREE))
|| (caller_sec != NULL_TREE
&& strcmp (TREE_STRING_POINTER (caller_sec),
TREE_STRING_POINTER (callee_sec)) != 0))
return FALSE;
}
else if (caller_sec != NULL_TREE)
return FALSE;
}
return TRUE;
}
return FALSE;