Initial creation of sourceware repository

1 files changed, 0 insertions, 566 deletions

diff --git a/gdb/config/rs6000/tm-rs6000.h b/gdb/config/rs6000/tm-rs6000.h
deleted file mode 100644
index 10562f2..0000000
--- a/gdb/config/rs6000/tm-rs6000.h
+++ /dev/null
@@ -1,566 +0,0 @@
-/* Parameters for target execution on an RS6000, for GDB, the GNU debugger.
-   Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1997
-   Free Software Foundation, Inc.
-   Contributed by IBM Corporation.
-
-This file is part of GDB.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
-
-#ifdef __STDC__		/* Forward decls for prototypes */
-struct frame_info;
-struct type;
-struct value;
-#endif
-
-/* Minimum possible text address in AIX */
-
-#define TEXT_SEGMENT_BASE	0x10000000
-
-/* Load segment of a given pc value. */
-
-#define	PC_LOAD_SEGMENT(PC)	pc_load_segment_name(PC)
-extern char *pc_load_segment_name PARAMS ((CORE_ADDR));
-
-/* AIX cc seems to get this right.  */
-
-#define BELIEVE_PCC_PROMOTION 1
-
-/* return true if a given `pc' value is in `call dummy' function. */
-/* FIXME: This just checks for the end of the stack, which is broken
-   for things like stepping through gcc nested function stubs.  */
-#define	PC_IN_CALL_DUMMY(STOP_PC, STOP_SP, STOP_FRAME_ADDR)	\
-	(STOP_SP < STOP_PC && STOP_PC < STACK_END_ADDR)
-
-#if 0
-extern unsigned int text_start, data_start;
-extern char *corefile;
-#endif
-extern int inferior_pid;
-
-/* We are missing register descriptions in the system header files. Sigh! */
-
-struct regs {
-	int	gregs [32];		/* general purpose registers */
-	int	pc;			/* program conter	*/
-	int	ps;			/* processor status, or machine state */
-};
-
-struct fp_status {
-	double	fpregs [32];		/* floating GP registers */
-};
-
-
-/* To be used by skip_prologue. */
-
-struct rs6000_framedata {
-  int	offset;				/* total size of frame --- the distance
-					   by which we decrement sp to allocate
-					   the frame */
-  int	saved_gpr;			/* smallest # of saved gpr */
-  int	saved_fpr;			/* smallest # of saved fpr */
-  int	alloca_reg;			/* alloca register number (frame ptr) */
-  char	frameless;			/* true if frameless functions. */
-  char	nosavedpc;			/* true if pc not saved. */
-  int	gpr_offset;			/* offset of saved gprs from prev sp */
-  int	fpr_offset;			/* offset of saved fprs from prev sp */
-  int	lr_offset;			/* offset of saved lr */
-  int	cr_offset;			/* offset of saved cr */
-};
-
-/* Define the byte order of the machine.  */
-
-#define TARGET_BYTE_ORDER	BIG_ENDIAN
-
-/* AIX's assembler doesn't grok dollar signs in identifiers.
-   So we use dots instead.  This item must be coordinated with G++. */
-#undef CPLUS_MARKER
-#define CPLUS_MARKER '.'
-
-/* Offset from address of function to start of its code.
-   Zero on most machines.  */
-
-#define FUNCTION_START_OFFSET 0
-
-/* Advance PC across any function entry prologue instructions
-   to reach some "real" code.  */
-
-#define SKIP_PROLOGUE(pc)						\
-do {									\
-  struct rs6000_framedata _frame;					\
-  pc = skip_prologue (pc, &_frame);					\
-} while (0)
-
-extern CORE_ADDR skip_prologue PARAMS((CORE_ADDR, struct rs6000_framedata *));
-
-
-/* If PC is in some function-call trampoline code, return the PC
-   where the function itself actually starts.  If not, return NULL.  */
-
-#define	SKIP_TRAMPOLINE_CODE(pc)	skip_trampoline_code (pc)
-extern CORE_ADDR skip_trampoline_code PARAMS ((CORE_ADDR));
-
-/* Number of trap signals we need to skip over, once the inferior process
-   starts running. */
-
-#define	START_INFERIOR_TRAPS_EXPECTED	2
-
-/* AIX has a couple of strange returns from wait().  */
-
-#define CHILD_SPECIAL_WAITSTATUS(ourstatus, hoststatus) ( \
-  /* "stop after load" status.  */ \
-  (hoststatus) == 0x57c ? (ourstatus)->kind = TARGET_WAITKIND_LOADED, 1 : \
-  \
-  /* signal 0. I have no idea why wait(2) returns with this status word.  */ \
-  /* It looks harmless. */ \
-  (hoststatus) == 0x7f ? (ourstatus)->kind = TARGET_WAITKIND_SPURIOUS, 1 : \
-  \
-  /* A normal waitstatus.  Let the usual macros deal with it.  */ \
-  0)
-
-/* In xcoff, we cannot process line numbers when we see them. This is
-   mainly because we don't know the boundaries of the include files. So,
-   we postpone that, and then enter and sort(?) the whole line table at
-   once, when we are closing the current symbol table in end_symtab(). */
-
-#define	PROCESS_LINENUMBER_HOOK()	aix_process_linenos ()
-extern void aix_process_linenos PARAMS ((void));
-   
-/* Immediately after a function call, return the saved pc.
-   Can't go through the frames for this because on some machines
-   the new frame is not set up until the new function executes
-   some instructions.  */
-
-#define	SAVED_PC_AFTER_CALL(frame) read_register (LR_REGNUM)
-
-/* Address of end of stack space.  */
-
-#define STACK_END_ADDR 0x2ff80000
-
-/* Stack grows downward.  */
-
-#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
-
-/* This is how arguments pushed onto stack or passed in registers.
-   Stack must be aligned on 64-bit boundaries when synthesizing
-   function calls.  We don't need STACK_ALIGN, PUSH_ARGUMENTS will
-   handle it. */
-
-#define	PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
-  sp = push_arguments((nargs), (args), (sp), (struct_return), (struct_addr))
-extern CORE_ADDR push_arguments PARAMS ((int, struct value **, CORE_ADDR,
-					 int, CORE_ADDR));
-
-/* BREAKPOINT_FROM_PC uses the program counter value to determine the
-   breakpoint that should be used */
-extern breakpoint_from_pc_fn rs6000_breakpoint_from_pc;
-#define BREAKPOINT_FROM_PC(pcptr, lenptr) rs6000_breakpoint_from_pc (pcptr, lenptr)
-
-/* Amount PC must be decremented by after a breakpoint.
-   This is often the number of bytes in BREAKPOINT
-   but not always.  */
-
-#define DECR_PC_AFTER_BREAK 0
-
-/* Say how long (ordinary) registers are.  This is a piece of bogosity
-   used in push_word and a few other places; REGISTER_RAW_SIZE is the
-   real way to know how big a register is.  */
-
-#define REGISTER_SIZE 4
-
-/* Number of machine registers */
-
-#define NUM_REGS 71
-
-/* Initializer for an array of names of registers.
-   There should be NUM_REGS strings in this initializer.  */
-
-#define REGISTER_NAMES  \
- {"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",  \
-  "r8", "r9", "r10","r11","r12","r13","r14","r15", \
-  "r16","r17","r18","r19","r20","r21","r22","r23", \
-  "r24","r25","r26","r27","r28","r29","r30","r31", \
-  "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7",  \
-  "f8", "f9", "f10","f11","f12","f13","f14","f15", \
-  "f16","f17","f18","f19","f20","f21","f22","f23", \
-  "f24","f25","f26","f27","f28","f29","f30","f31", \
-  "pc", "ps", "cnd", "lr", "cnt", "xer", "mq" }
-
-/* Register numbers of various important registers.
-   Note that some of these values are "real" register numbers,
-   and correspond to the general registers of the machine,
-   and some are "phony" register numbers which are too large
-   to be actual register numbers as far as the user is concerned
-   but do serve to get the desired values when passed to read_register.  */
-
-#define FP_REGNUM 1		/* Contains address of executing stack frame */
-#define SP_REGNUM 1		/* Contains address of top of stack */
-#define	TOC_REGNUM 2		/* TOC register */
-#define FP0_REGNUM 32		/* Floating point register 0 */
-#define	GP0_REGNUM 0		/* GPR register 0 */
-#define FP0_REGNUM 32		/* FPR (Floating point) register 0 */
-#define FPLAST_REGNUM 63	/* Last floating point register */  
-
-/* Special purpose registers... */
-/* P.S. keep these in the same order as in /usr/mstsave.h `mstsave' structure, for
-   easier processing */
-
-#define PC_REGNUM 64		/* Program counter (instruction address %iar) */
-#define PS_REGNUM 65		/* Processor (or machine) status (%msr) */
-#define	CR_REGNUM 66		/* Condition register */
-#define	LR_REGNUM 67		/* Link register */
-#define	CTR_REGNUM 68		/* Count register */
-#define	XER_REGNUM 69		/* Fixed point exception registers */
-#define	MQ_REGNUM 70		/* Multiply/quotient register */
-
-#define	FIRST_SP_REGNUM 64	/* first special register number */
-#define LAST_SP_REGNUM  70	/* last special register number */
-
-/* Total amount of space needed to store our copies of the machine's
-   register state, the array `registers'.
-
-	32 4-byte gpr's
-	32 8-byte fpr's
-	7  4-byte special purpose registers, 
-
-   total 416 bytes. Keep some extra space for now, in case to add more. */
-
-#define REGISTER_BYTES 420
-
-
-/* Index within `registers' of the first byte of the space for
-   register N.  */
-
-#define REGISTER_BYTE(N)  \
- (								\
-  ((N) > FPLAST_REGNUM) ? ((((N) - FPLAST_REGNUM -1) * 4) + 384)\
-  :((N) >= FP0_REGNUM) ? ((((N) - FP0_REGNUM) * 8) + 128)	\
-  :((N) * 4) )
-
-/* Number of bytes of storage in the actual machine representation
-   for register N. */
-/* Note that the unsigned cast here forces the result of the
-   subtractiion to very high positive values if N < FP0_REGNUM */
-
-#define REGISTER_RAW_SIZE(N) (((unsigned)(N) - FP0_REGNUM) < 32 ? 8 : 4)
-
-/* Number of bytes of storage in the program's representation
-   for register N.  On the RS6000, all regs are 4 bytes
-   except the floating point regs which are 8-byte doubles.  */
-
-#define REGISTER_VIRTUAL_SIZE(N) (((unsigned)(N) - FP0_REGNUM) < 32 ? 8 : 4)
-
-/* Largest value REGISTER_RAW_SIZE can have.  */
-
-#define MAX_REGISTER_RAW_SIZE 8
-
-/* Largest value REGISTER_VIRTUAL_SIZE can have.  */
-
-#define MAX_REGISTER_VIRTUAL_SIZE 8
-
-/* convert a dbx stab register number (from `r' declaration) to a gdb REGNUM */
-
-#define STAB_REG_TO_REGNUM(value)	(value)
-
-/* Nonzero if register N requires conversion
-   from raw format to virtual format.
-   The register format for rs6000 floating point registers is always
-   double, we need a conversion if the memory format is float.  */
-
-#define REGISTER_CONVERTIBLE(N) ((N) >= FP0_REGNUM && (N) <= FPLAST_REGNUM)
-
-/* Convert data from raw format for register REGNUM in buffer FROM
-   to virtual format with type TYPE in buffer TO.  */
-
-#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \
-{ \
-  if (TYPE_LENGTH (TYPE) != REGISTER_RAW_SIZE (REGNUM)) \
-    { \
-      double val = extract_floating ((FROM), REGISTER_RAW_SIZE (REGNUM)); \
-      store_floating ((TO), TYPE_LENGTH (TYPE), val); \
-    } \
-  else \
-    memcpy ((TO), (FROM), REGISTER_RAW_SIZE (REGNUM)); \
-}
-
-/* Convert data from virtual format with type TYPE in buffer FROM
-   to raw format for register REGNUM in buffer TO.  */
-
-#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO)	\
-{ \
-  if (TYPE_LENGTH (TYPE) != REGISTER_RAW_SIZE (REGNUM)) \
-    { \
-      double val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \
-      store_floating ((TO), REGISTER_RAW_SIZE (REGNUM), val); \
-    } \
-  else \
-    memcpy ((TO), (FROM), REGISTER_RAW_SIZE (REGNUM)); \
-}
-
-/* Return the GDB type object for the "standard" data type
-   of data in register N.  */
-
-#define REGISTER_VIRTUAL_TYPE(N) \
- (((unsigned)(N) - FP0_REGNUM) < 32 ? builtin_type_double : builtin_type_int)
-
-/* Store the address of the place in which to copy the structure the
-   subroutine will return.  This is called from call_function. */
-/* in RS6000, struct return addresses are passed as an extra parameter in r3.
-   In function return, callee is not responsible of returning this address back.
-   Since gdb needs to find it, we will store in a designated variable
-   `rs6000_struct_return_address'. */
-
-extern CORE_ADDR rs6000_struct_return_address;
-
-#define STORE_STRUCT_RETURN(ADDR, SP)	\
-  { write_register (3, (ADDR));		\
-    rs6000_struct_return_address = (ADDR); }
-
-/* Extract from an array REGBUF containing the (raw) register state
-   a function return value of type TYPE, and copy that, in virtual format,
-   into VALBUF.  */
-
-/* #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
-  memcpy (VALBUF, REGBUF, TYPE_LENGTH (TYPE)) */
-
-#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
-  extract_return_value(TYPE,REGBUF,VALBUF)
-extern void extract_return_value PARAMS ((struct type *, char [], char *));
-
-/* Write into appropriate registers a function return value
-   of type TYPE, given in virtual format.  */
-
-#define STORE_RETURN_VALUE(TYPE,VALBUF) \
-  {									\
-    if (TYPE_CODE (TYPE) == TYPE_CODE_FLT)				\
-									\
-     /* Floating point values are returned starting from FPR1 and up.	\
-	Say a double_double_double type could be returned in		\
-	FPR1/FPR2/FPR3 triple. */					\
-									\
-      write_register_bytes (REGISTER_BYTE (FP0_REGNUM+1), (VALBUF),	\
-						TYPE_LENGTH (TYPE));	\
-    else								\
-      /* Everything else is returned in GPR3 and up. */			\
-      write_register_bytes (REGISTER_BYTE (GP0_REGNUM+3), (VALBUF),	\
-						TYPE_LENGTH (TYPE));	\
-  }
-
-
-/* Extract from an array REGBUF containing the (raw) register state
-   the address in which a function should return its structure value,
-   as a CORE_ADDR (or an expression that can be used as one).  */
-
-#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF)	rs6000_struct_return_address
-
-/* Describe the pointer in each stack frame to the previous stack frame
-   (its caller).  */
-
-/* FRAME_CHAIN takes a frame's nominal address
-   and produces the frame's chain-pointer. */
-
-/* In the case of the RS6000, the frame's nominal address
-   is the address of a 4-byte word containing the calling frame's address.  */
-
-#define FRAME_CHAIN(thisframe) rs6000_frame_chain (thisframe)
-CORE_ADDR rs6000_frame_chain PARAMS ((struct frame_info *));
-
-/* Define other aspects of the stack frame.  */
-
-/* A macro that tells us whether the function invocation represented
-   by FI does not have a frame on the stack associated with it.  If it
-   does not, FRAMELESS is set to 1, else 0.  */
-
-#define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \
-  FRAMELESS = frameless_function_invocation (FI)
-
-extern int frameless_function_invocation PARAMS((struct frame_info *));
-
-#define INIT_FRAME_PC_FIRST(fromleaf, prev) \
-  prev->pc = (fromleaf ? SAVED_PC_AFTER_CALL (prev->next) : \
-	      prev->next ? FRAME_SAVED_PC (prev->next) : read_pc ());
-#define INIT_FRAME_PC(fromleaf, prev) /* nothing */
-extern void rs6000_init_extra_frame_info (int fromleaf, struct frame_info *);
-#define	INIT_EXTRA_FRAME_INFO(fromleaf, fi) rs6000_init_extra_frame_info (fromleaf, fi)
-
-/* If the kernel has to deliver a signal, it pushes a sigcontext
-   structure on the stack and then calls the signal handler, passing
-   the address of the sigcontext in an argument register. Usually
-   the signal handler doesn't save this register, so we have to
-   access the sigcontext structure via an offset from the signal handler
-   frame.
-   The following constants were determined by experimentation on AIX 3.2.  */
-#define SIG_FRAME_PC_OFFSET 96
-#define SIG_FRAME_LR_OFFSET 108
-#define SIG_FRAME_FP_OFFSET 284
-
-/* Default offset from SP where the LR is stored */
-#define	DEFAULT_LR_SAVE 8
-
-/* Return saved PC from a frame */
-#define FRAME_SAVED_PC(FRAME)  frame_saved_pc (FRAME)
-
-extern unsigned long frame_saved_pc PARAMS ((struct frame_info *));
-
-extern CORE_ADDR rs6000_frame_args_address PARAMS ((struct frame_info *));
-#define FRAME_ARGS_ADDRESS(FI) rs6000_frame_args_address (FI)
-
-#define FRAME_LOCALS_ADDRESS(FI)	FRAME_ARGS_ADDRESS(FI)
-
-
-/* Set VAL to the number of args passed to frame described by FI.
-   Can set VAL to -1, meaning no way to tell.  */
-
-/* We can't tell how many args there are
-   now that the C compiler delays popping them.  */
-
-#define FRAME_NUM_ARGS(val,fi) (val = -1)
-
-/* Return number of bytes at start of arglist that are not really args.  */
-
-#define FRAME_ARGS_SKIP 8	/* Not sure on this. FIXMEmgo */
-
-/* Put here the code to store, into a struct frame_saved_regs,
-   the addresses of the saved registers of frame described by FRAME_INFO.
-   This includes special registers such as pc and fp saved in special
-   ways in the stack frame.  sp is even more special:
-   the address we return for it IS the sp for the next frame.  */
-/* In the following implementation for RS6000, we did *not* save sp. I am
-   not sure if it will be needed. The following macro takes care of gpr's
-   and fpr's only. */
-
-extern void rs6000_frame_init_saved_regs PARAMS ((struct frame_info *));
-#define FRAME_INIT_SAVED_REGS(FI) rs6000_frame_init_saved_regs (FI)
-
-/* Things needed for making the inferior call functions.  */
-
-/* Push an empty stack frame, to record the current PC, etc.  */
-/* Change these names into rs6k_{push, pop}_frame(). FIXMEmgo. */
-
-#define PUSH_DUMMY_FRAME	push_dummy_frame ()
-extern void push_dummy_frame PARAMS ((void));
-
-/* Discard from the stack the innermost frame, 
-   restoring all saved registers.  */
-
-#define POP_FRAME	pop_frame ()
-extern void pop_frame PARAMS ((void));
-
-/* This sequence of words is the instructions:
-
-	mflr	r0		// 0x7c0802a6
-				// save fpr's
-	stfd	r?, num(r1)	// 0xd8010000 there should be 32 of this??
-				// save gpr's
-	stm	r0, num(r1)	// 0xbc010000
-	stu	r1, num(r1)	// 0x94210000
-
-	// the function we want to branch might be in a different load 
-	// segment. reset the toc register. Note that the actual toc address
-	// will be fix by fix_call_dummy () along with function address.
-
-	st	r2, 0x14(r1)	// 0x90410014 save toc register
-	liu	r2, 0x1234	// 0x3c401234 reset a new toc value 0x12345678
-	oril	r2, r2,0x5678   // 0x60425678	
-
-				// load absolute address 0x12345678 to r0
-	liu	r0, 0x1234	// 0x3c001234
-	oril	r0, r0,0x5678	// 0x60005678
-	mtctr	r0		// 0x7c0903a6 ctr <- r0
-	bctrl			// 0x4e800421 jump subroutine 0x12345678 (%ctr)
-	cror	0xf, 0xf, 0xf	// 0x4def7b82
-	brpt			// 0x7d821008, breakpoint
-	cror	0xf, 0xf, 0xf	// 0x4def7b82 (for 8 byte alignment)
-
-
-  We actually start executing by saving the toc register first, since the pushing 
-  of the registers is done by PUSH_DUMMY_FRAME.  If this were real code,
-  the arguments for the function called by the `bctrl' would be pushed
-  between the `stu' and the `bctrl', and we could allow it to execute through.
-  But the arguments have to be pushed by GDB after the PUSH_DUMMY_FRAME is done,
-  and we cannot allow to push the registers again.
-*/
-	
-#define CALL_DUMMY {0x7c0802a6, 0xd8010000, 0xbc010000, 0x94210000, \
-		    0x90410014, 0x3c401234, 0x60425678,		    \
-		    0x3c001234, 0x60005678, 0x7c0903a6, 0x4e800421, \
-		    0x4def7b82, 0x7d821008, 0x4def7b82 }
-
-
-/* keep this as multiple of 8 (%sp requires 8 byte alignment) */
-#define CALL_DUMMY_LENGTH 56
-
-#define CALL_DUMMY_START_OFFSET 16
-
-/* Insert the specified number of args and function address into a
-   call sequence of the above form stored at DUMMYNAME.  */
-
-#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
-  rs6000_fix_call_dummy (dummyname, pc, fun, nargs, args, type, gcc_p)
-extern void rs6000_fix_call_dummy PARAMS ((char *, CORE_ADDR, CORE_ADDR,
-					   int, struct value **,
-					   struct type *, int));
-
-/* Hook in rs6000-tdep.c for determining the TOC address when
-   calling functions in the inferior.  */
-extern CORE_ADDR (*find_toc_address_hook) PARAMS ((CORE_ADDR));
-
-/* xcoffread.c provides a function to determine the TOC offset
-   for a given object file.
-   It is used under native AIX configurations for determining the
-   TOC address when calling functions in the inferior.  */
-#ifdef __STDC__
-struct objfile;
-#endif
-extern CORE_ADDR get_toc_offset PARAMS ((struct objfile *));
-
-/* Usually a function pointer's representation is simply the address
-   of the function. On the RS/6000 however, a function pointer is
-   represented by a pointer to a TOC entry. This TOC entry contains
-   three words, the first word is the address of the function, the
-   second word is the TOC pointer (r2), and the third word is the
-   static chain value.  Throughout GDB it is currently assumed that a
-   function pointer contains the address of the function, which is not
-   easy to fix.  In addition, the conversion of a function address to
-   a function pointer would require allocation of a TOC entry in the
-   inferior's memory space, with all its drawbacks.  To be able to
-   call C++ virtual methods in the inferior (which are called via
-   function pointers), find_function_addr uses this macro to get the
-   function address from a function pointer.  */
-
-#define CONVERT_FROM_FUNC_PTR_ADDR(ADDR) \
-  (is_magic_function_pointer (ADDR) ? read_memory_integer (ADDR, 4) : (ADDR))
-extern int is_magic_function_pointer PARAMS ((CORE_ADDR));
-
-/* Flag for machine-specific stuff in shared files.  FIXME */
-#define IBM6000_TARGET
-
-/* RS6000/AIX does not support PT_STEP.  Has to be simulated.  */
-
-#define SOFTWARE_SINGLE_STEP_P 1
-extern void rs6000_software_single_step PARAMS ((unsigned int, int));
-#define SOFTWARE_SINGLE_STEP(sig,bp_p) rs6000_software_single_step (sig, bp_p)
-
-/* If the current gcc for for this target does not produce correct debugging
-   information for float parameters, both prototyped and unprototyped, then
-   define this macro.  This forces gdb to  always assume that floats are
-   passed as doubles and then converted in the callee.
-
-   For the PowerPC, it appears that the debug info marks the parameters as
-   floats regardless of whether the function is prototyped, but the actual
-   values are always passed in as doubles.  Thus by setting this to 1, both
-   types of calls will work. */
-
-#define COERCE_FLOAT_TO_DOUBLE 1