2000-05-10 Michael Snyder <msnyder@seadog.cygnus.com>

Make Sparc a Multi-Arch target.  Discard PARAMS macro (require ANSI).
	* sparc-tdep.c: include arch-utils.h.
	(SPARC_HAS_FPU, FP_REGISTER_BYTES, FP_MAX_REG NUM, SPARC_INTREG_SIZE,
	DUMMY_REG_SAVE_OFFSET): provide multi-arch-compatible definitions.
	(GDB_TARGET_IS_SPARC64): make into a runtime test.
	(struct frame_extra_info): Define, use instead of the macro.
	(Many places): Use alloca instead of statically allocated buffers
	that depend on a multi-arch variable such as MAX_REGISTER_RAW_SIZE.
	(sparc_extract_struct_value_address): Accept a pointer arg instead
	of an array sized by REGISTER_BYTES.
	(examine_prologue): Accept a pointer to an array of CORE_ADDR,
	instead of the defunct struct frame_saved_regs.  Recognize new
	Sparc64 store instructions as part of the prologue.  Ignore the
	destination of a frame store when parsing the prologue (so long
	as it's on the stack).
	(sparc_push_dummy_frame): Fix incorrect buffer offset for PSTATE.
	(sparc_frame_find_saved_regs): Accept a ptr to an array of CORE_ADDR
	instead of the defunct struct frame_saved_regs.
	(supply_gregset): Discard unnecessary 'zerobuf': just send NULL to
	supply_register.  Provide 4-byte offset to compensate for diff
	between size of the prgreg_t elements on a 64-bit host and size
	of the registers for a 32-bit target.  Fill all inaccessible regs
	with zero so they won't keep being requested again and again.
	(fill_gregset): Handle 32/64 size difference between registers
	and prgreg_t.  Handle as many new 64-bit regs as possible.
	(supply_fpregset, fill_fpregset): Attempt to handle 64-bit world.
	(sparc_push_arguments): Rename to sparc32_push_arguments.
	Copy arguments into registers as well as onto stack, so that the
	CALL_DUMMY (code pushed onto the target stack) is not required.
	(sparc_extract_return_value): Rename to sparc32_extract_return_value.
	(sparc_store_return_value): Use memset instead of bzero.
	Use write_register_gen instead of write_register_bytes.
	(sparclet_store_return_value): New function.
	(_initialize_sparc_tdep): Call register_gdbarch_init to activate
	the gdbarch multi-architecture system.
	(sp64_push_arguments): Rename to sparc64_push_arguments.
	Extend to store arguments in general registers as well as on stack.
	(sparc64_extract_return_value): Rename to sp64_extract_return_value.
	Use as a private function, to be called by the new external function
	sparc64_extract_return_value.
	(sparclet_extract_return_value): New function.
	(sparc32_stack_align, sparc64_stack_align, sparc32_register_name,
	sparc64_register_name, sparc_print_extra_frame_info,
	sparclite_register_name, sparclet_register_name,
	sparc_push_return_address, sparc64_use_struct_convention,
	sparc32_store_struct_return, sparc64_store_struct_return,
	sparc32_register_virtual_type, sparc64_register_virtual_type,
	sparc32_register_size, sparc64_register_size,
	sparc32_register_byte, sparc64_register_byte,
	sparc_gdbarch_skip_prologue, sparc_convert_to_virtual,
	sparc_convert_to_raw, sparc_frame_init_saved_regs,
	sparc_frame_address, sparc_gdbarch_fix_call_dummy,
	sparc_coerce_float_to_double, sparc_call_dummy_address,
	sparc_y_regnum, sparc_reg_struct_has_addr, sparc_intreg_size,
	sparc_return_value_on_stack): New functions supporting multi-arch.
	(sparc_gdbarch_init): New function; initialize multi-arch.
	(struct gdbarch_tdep): Define, use for private multi-arch data.
	* config/sparc/tm-sparc.h: Move definitions around, enclose with
	#ifdef GDB_MULTI_ARCH tests, provide some multi-arch alternate
	definitions.  Add enums for register names, to help debugging gdb.
	This header file must work for non-multi-arch and for multi-arch.
	* config/sparc/tm-sp64.h: Add GDB_MULTI_ARCH configuration.  Also add
	AT_ENTRY_POINT definitions for CALL_DUMMY, for non-multi-arch case.
	Define GDB_MULTI_ARCH.
	* config/sparc/tm-sparclet.h: Add GDB_MULTI_ARCH configuration.
	Do not define GDB_MULTI_ARCH (bfd does not correctly identify target).
	* config/sparc/tm-sparclite.h: Ditto.
	* config/sparc/tm-sun4sol2.h: Define GDB_MULTI_ARCH.
	* sparclet-rom.c (sparclet_regnames): Initialize explicitly, to
	avoid using deprecated REGISTER_NAMES macro.
	* Makefile.in: Let sparc-tdep.c depend on arch-utils.h.

gdb/sparclet-rom.c

@@ -61,7 +61,32 @@ static void sparclet_open PARAMS ((char *args, int from_tty));
 
 /* is wim part of psr?? */
 /* monitor wants lower case */
-static char *sparclet_regnames[NUM_REGS] = REGISTER_NAMES;
+static char *sparclet_regnames[] = {
+  "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", 
+  "o0", "o1", "o2", "o3", "o4", "o5", "o6", "o7", 
+  "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7", 
+  "i0", "i1", "i2", "i3", "i4", "i5", "i6", "i7", 
+
+  "", "", "", "", "", "", "", "", /* no FPU regs */
+  "", "", "", "", "", "", "", "", 
+  "", "", "", "", "", "", "", "", 
+  "", "", "", "", "", "", "", "", 
+				  /* no CPSR, FPSR */
+  "y", "psr", "wim", "tbr", "pc", "npc", "", "", 
+
+  "ccsr", "ccpr", "cccrcr", "ccor", "ccobr", "ccibr", "ccir", "", 
+
+  /*       ASR15                 ASR19 (don't display them) */  
+  "asr1",  "", "asr17", "asr18", "", "asr20", "asr21", "asr22", 
+/*
+  "awr0",  "awr1",  "awr2",  "awr3",  "awr4",  "awr5",  "awr6",  "awr7",  
+  "awr8",  "awr9",  "awr10", "awr11", "awr12", "awr13", "awr14", "awr15", 
+  "awr16", "awr17", "awr18", "awr19", "awr20", "awr21", "awr22", "awr23", 
+  "awr24", "awr25", "awr26", "awr27", "awr28", "awr29", "awr30", "awr31", 
+  "apsr",
+ */
+};
+
 
 
 /* Function: sparclet_supply_register