pa-linux.h (INCOMING_RETURN_ADDR_RTX): Move.

	* pa-linux.h (INCOMING_RETURN_ADDR_RTX): Move.
	(DWARF_FRAME_RETURN_COLUMN): Move.
	(ASM_PREFERRED_EH_DATA_FORMAT): Define.
	(ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX): Define.
	* pa.c (except.h, predict.h): Include.
	(FRP): Delete.
	(store_reg_modify, set_reg_plus_d): Revise prototypes.
	(output_ascii): Add cast.
	(store_reg_modify): Revise to add frame notes.
	(set_reg_plus_d): Likewise.
	(compute_frame_size): Include space for eh data registers in frame if
	the current function calls eh_return.
	(hppa_expand_prologue):  Ensure register %r2 is saved if the current
	function calls eh_return.  Save eh data registers if the current
	function calls eh_return.  Fix code to add frame notes.  Emit
	blockage to prevent insns with frame notes being scheduled in the
	delay slot of calls.
	(hppa_expand_epilogue): Restore eh data registers and do final stack
	adjustment if the current function calls eh_return.  Don't add frame
	notes.
	(output_call): Revise for change in length of call insn.  Don't do
	return pointer adjustment for an unconditional jump in the delay slot
	of a call when using frame notes.
	* pa.h (EH_RETURN_DATA_REGNO): Revise for TARGET_64BIT compatibility.
	(EH_RETURN_HANDLER_RTX): Use saved value on stack.
	(ARG_POINTER_CFA_OFFSET): Define.
	* pa.md (return_external_pic): New pattern.
	(prologue): Correct formatting.  Use return_external_pic if current
	function calls eh_return.
	(call_internal_symref, call_value_internal_symref,
	sibcall_internal_symref, sibcall_value_internal_symref): Change default
	lengths of short, long non-pic, and long pic calls to 8, 68, and 84,
	respectively.
	(exception_receiver): Use hppa_pic_save_rtx () to restore pic register.

	* configure.in ("assembler dwarf2 debug_line support"): Add hppa*-*-* to
	list of targets to check using "nop" insn.
	* configure: Rebuilt.

From-SVN: r51836

1 files changed, 33 insertions, 6 deletions

diff --git a/gcc/config/pa/pa-linux.h b/gcc/config/pa/pa-linux.h
index f30a187f91b..16599ef171a 100644
--- a/gcc/config/pa/pa-linux.h
+++ b/gcc/config/pa/pa-linux.h
@@ -24,6 +24,39 @@ Boston, MA 02111-1307, USA.  */
 #define DWARF2_ASM_LINE_DEBUG_INFO 1
 #define DWARF2_UNWIND_INFO 1
 
+/* A C expression whose value is RTL representing the location of the
+   incoming return address at the beginning of any function, before the
+   prologue.  You only need to define this macro if you want to support
+   call frame debugging information like that provided by DWARF 2.  */
+#define INCOMING_RETURN_ADDR_RTX (gen_rtx_REG (word_mode, 2))
+#define DWARF_FRAME_RETURN_COLUMN (DWARF_FRAME_REGNUM (2))
+
+/* This macro chooses the encoding of pointers embedded in the exception
+   handling sections.  If at all possible, this should be defined such
+   that the exception handling section will not require dynamic relocations,
+   and so may be read-only.
+
+   FIXME: We use DW_EH_PE_aligned to output a PLABEL constructor for
+   global function pointers.  */
+#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL)			\
+  (CODE == 2 && GLOBAL ? DW_EH_PE_aligned : DW_EH_PE_absptr)
+
+/* Handle special EH pointer encodings.  Absolute, pc-relative, and
+   indirect are handled automatically.  Since pc-relative encoding is
+   not possible on the PA and we don't have the infrastructure for
+   data relative encoding, we use aligned plabels for global function
+   pointers.  */
+#define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(FILE, ENCODING, SIZE, ADDR, DONE) \
+  do {									\
+    if (((ENCODING) & 0x0F) == DW_EH_PE_aligned)			\
+      {									\
+	fputs (integer_asm_op (SIZE, FALSE), FILE);			\
+	fputs ("P%", FILE);						\
+	assemble_name (FILE, XSTR (ADDR, 0));				\
+	goto DONE;							\
+      }									\
+    } while (0)
+
 #undef CPP_PREDEFINES
 #define CPP_PREDEFINES "-D__ELF__ -Dunix -D__hppa__ -Dlinux -Asystem=unix -Asystem=posix -Acpu=hppa -Amachine=hppa -Amachine=bigendian"
 
@@ -64,12 +97,6 @@ Boston, MA 02111-1307, USA.  */
   else							\
     readonly_data_section ();
 
-/* A C expression whose value is RTL representing the location of the
-   incoming return address at the beginning of any function, before the
-   prologue.  */
-#define INCOMING_RETURN_ADDR_RTX  (gen_rtx_REG (word_mode, 2))
-#define DWARF_FRAME_RETURN_COLUMN (DWARF_FRAME_REGNUM (2))
-
 /* Define the strings used for the special svr4 .type and .size directives.
    These strings generally do not vary from one system running svr4 to
    another, but if a given system (e.g. m88k running svr) needs to use