static bool pa_scalar_mode_supported_p (enum machine_mode);
static void copy_fp_args (rtx) ATTRIBUTE_UNUSED;
static int length_fp_args (rtx) ATTRIBUTE_UNUSED;
-static struct deferred_plabel *get_plabel (const char *)
- ATTRIBUTE_UNUSED;
+static struct deferred_plabel *get_plabel (rtx) ATTRIBUTE_UNUSED;
static inline void pa_file_start_level (void) ATTRIBUTE_UNUSED;
static inline void pa_file_start_space (int) ATTRIBUTE_UNUSED;
static inline void pa_file_start_file (int) ATTRIBUTE_UNUSED;
static void pa_hpux64_gas_file_start (void) ATTRIBUTE_UNUSED;
static void pa_hpux64_hpas_file_start (void) ATTRIBUTE_UNUSED;
static void output_deferred_plabels (void);
+#ifdef ASM_OUTPUT_EXTERNAL_REAL
+static void pa_hpux_file_end (void);
+#endif
#ifdef HPUX_LONG_DOUBLE_LIBRARY
static void pa_hpux_init_libfuncs (void);
#endif
struct deferred_plabel GTY(())
{
rtx internal_label;
- const char *name;
+ rtx symbol;
};
static GTY((length ("n_deferred_plabels"))) struct deferred_plabel *
deferred_plabels;
#define TARGET_ASM_CAN_OUTPUT_MI_THUNK default_can_output_mi_thunk_no_vcall
#undef TARGET_ASM_FILE_END
+#ifdef ASM_OUTPUT_EXTERNAL_REAL
+#define TARGET_ASM_FILE_END pa_hpux_file_end
+#else
#define TARGET_ASM_FILE_END output_deferred_plabels
+#endif
#if !defined(USE_COLLECT2)
#undef TARGET_ASM_CONSTRUCTOR
x = XEXP (x, 0);
if (GET_CODE (x) == SYMBOL_REF && read_only_operand (x, VOIDmode))
- assemble_name (file, XSTR (x, 0));
+ output_addr_const (file, x);
else if (GET_CODE (x) == SYMBOL_REF && !flag_pic)
{
- assemble_name (file, XSTR (x, 0));
+ output_addr_const (file, x);
fputs ("-$global$", file);
}
else if (GET_CODE (x) == CONST)
#undef aputs
static struct deferred_plabel *
-get_plabel (const char *fname)
+get_plabel (rtx symbol)
{
+ const char *fname = XSTR (symbol, 0);
size_t i;
/* See if we have already put this function on the list of deferred
plabels. This list is generally small, so a liner search is not
too ugly. If it proves too slow replace it with something faster. */
for (i = 0; i < n_deferred_plabels; i++)
- if (strcmp (fname, deferred_plabels[i].name) == 0)
+ if (strcmp (fname, XSTR (deferred_plabels[i].symbol, 0)) == 0)
break;
/* If the deferred plabel list is empty, or this entry was not found
on the list, create a new entry on the list. */
if (deferred_plabels == NULL || i == n_deferred_plabels)
{
+ tree id;
+
if (deferred_plabels == 0)
deferred_plabels = (struct deferred_plabel *)
ggc_alloc (sizeof (struct deferred_plabel));
i = n_deferred_plabels++;
deferred_plabels[i].internal_label = gen_label_rtx ();
- deferred_plabels[i].name = ggc_strdup (fname);
+ deferred_plabels[i].symbol = symbol;
- /* Gross. We have just implicitly taken the address of
- this function, mark it as such. */
- fname = targetm.strip_name_encoding (fname);
- TREE_SYMBOL_REFERENCED (get_identifier (fname)) = 1;
+ /* Gross. We have just implicitly taken the address of this
+ function. Mark it in the same manner as assemble_name. */
+ id = maybe_get_identifier (targetm.strip_name_encoding (fname));
+ if (id)
+ mark_referenced (id);
}
return &deferred_plabels[i];
{
(*targetm.asm_out.internal_label) (asm_out_file, "L",
CODE_LABEL_NUMBER (deferred_plabels[i].internal_label));
- assemble_integer (gen_rtx_SYMBOL_REF (Pmode, deferred_plabels[i].name),
+ assemble_integer (deferred_plabels[i].symbol,
TARGET_64BIT ? 8 : 4, TARGET_64BIT ? 64 : 32, 1);
}
}
/* ??? As far as I can tell, the HP linker doesn't support the
long pc-relative sequence described in the 64-bit runtime
architecture. So, we use a slightly longer indirect call. */
- struct deferred_plabel *p = get_plabel (XSTR (call_dest, 0));
+ struct deferred_plabel *p = get_plabel (call_dest);
xoperands[0] = p->internal_label;
xoperands[1] = gen_label_rtx ();
essentially an inline implementation of $$dyncall.
We don't actually try to call $$dyncall as this is
as difficult as calling the function itself. */
- struct deferred_plabel *p = get_plabel (XSTR (call_dest, 0));
+ struct deferred_plabel *p = get_plabel (call_dest);
xoperands[0] = p->internal_label;
xoperands[1] = gen_label_rtx ();
|| int_size_in_bytes (type) <= 0);
}
+/* Structure to hold declaration and name of external symbols that are
+ emitted by GCC. We generate a vector of these symbols and output them
+ at the end of the file if and only if SYMBOL_REF_REFERENCED_P is true.
+ This avoids putting out names that are never really used. */
+
+struct extern_symbol GTY(())
+{
+ tree decl;
+ const char *name;
+};
+typedef struct extern_symbol *extern_symbol;
+
+/* Define gc'd vector type for extern_symbol. */
+DEF_VEC_GC_P(extern_symbol);
+
+/* Vector of extern_symbol pointers. */
+static GTY(()) VEC(extern_symbol) *extern_symbols;
+
+#ifdef ASM_OUTPUT_EXTERNAL_REAL
+/* Mark DECL (name NAME) as an external reference (assembler output
+ file FILE). This saves the names to output at the end of the file
+ if actually referenced. */
+
+void
+pa_hpux_asm_output_external (FILE *file, tree decl, const char *name)
+{
+ extern_symbol p = ggc_alloc (sizeof (struct extern_symbol));
+
+ gcc_assert (file == asm_out_file);
+ p->decl = decl;
+ p->name = name;
+ VEC_safe_push (extern_symbol, extern_symbols, p);
+}
+
+/* Output text required at the end of an assembler file.
+ This includes deferred plabels and .import directives for
+ all external symbols that were actually referenced. */
+
+static void
+pa_hpux_file_end (void)
+{
+ unsigned int i;
+ extern_symbol p;
+
+ output_deferred_plabels ();
+
+ for (i = 0; VEC_iterate (extern_symbol, extern_symbols, i, p); i++)
+ {
+ tree decl = p->decl;
+
+ if (!TREE_ASM_WRITTEN (decl)
+ && SYMBOL_REF_REFERENCED_P (XEXP (DECL_RTL (decl), 0)))
+ ASM_OUTPUT_EXTERNAL_REAL (asm_out_file, decl, p->name);
+ }
+
+ extern_symbols = NULL;
+}
+#endif
+
#include "gt-pa.h"
be imported as an ENTRY symbol. */
#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \
+ pa_hpux_asm_output_external ((FILE), (DECL), (NAME))
+#define ASM_OUTPUT_EXTERNAL_REAL(FILE, DECL, NAME) \
do { fputs ("\t.IMPORT ", FILE); \
assemble_name_raw (FILE, NAME); \
if (FUNCTION_NAME_P (NAME)) \
} while (0)
/* The bogus HP assembler requires ALL external references to be
- "imported", even library calls. They look a bit different, so
+ "imported", even library calls. They look a bit different, so
here's this macro.
Also note not all libcall names are passed to pa_encode_section_info
(__main for example). To make sure all libcall names have section
- info recorded in them, we do it here. We must also ensure that
- we don't import a libcall that has been previously exported since
- the HP assembler may change an ENTRY symbol to a CODE symbol. */
+ info recorded in them, we do it here.
+
+ We must also ensure that a libcall that has been previously
+ exported is not subsequently imported since the HP assembler may
+ change the type from an ENTRY to a CODE symbol. This would make
+ the symbol local. We are forced to use the identifier node
+ associated with the real assembler name for this check as the
+ symbol_ref available in ASM_DECLARE_FUNCTION_NAME is not the
+ same as the one used here. As a result, we can't use flags
+ in the symbol_ref for this check. The identifier check assumes
+ assemble_external_libcall is called before the symbol is used. */
#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, RTL) \
do { const char *name; \
if (!id || !TREE_SYMBOL_REFERENCED (id)) \
{ \
fputs ("\t.IMPORT ", FILE); \
- assemble_name (FILE, XSTR ((RTL), 0)); \
+ assemble_name_raw (FILE, XSTR ((RTL), 0)); \
fputs (",CODE\n", FILE); \
} \
} while (0)
do { fputs ("\t.weak\t", FILE); \
assemble_name (FILE, NAME); \
fputc ('\n', FILE); \
- if (! FUNCTION_NAME_P (NAME)) \
- { \
- fputs ("\t.EXPORT ", FILE); \
- assemble_name (FILE, NAME); \
- fputs (",DATA\n", FILE); \
- } \
+ targetm.asm_out.globalize_label (FILE, NAME); \
} while (0)
/* We can't handle weak aliases, and therefore can't support pragma weak.
projects / platform / upstream / gcc.git / commitdiff