/* Parameters for target execution on an RS6000, for GDB, the GNU debugger.
|
/* Parameters for target execution on an RS6000, for GDB, the GNU debugger.
|
Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1997
|
Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1997
|
Free Software Foundation, Inc.
|
Free Software Foundation, Inc.
|
Contributed by IBM Corporation.
|
Contributed by IBM Corporation.
|
|
|
This file is part of GDB.
|
This file is part of GDB.
|
|
|
This program is free software; you can redistribute it and/or modify
|
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
|
it under the terms of the GNU General Public License as published by
|
the Free Software Foundation; either version 2 of the License, or
|
the Free Software Foundation; either version 2 of the License, or
|
(at your option) any later version.
|
(at your option) any later version.
|
|
|
This program is distributed in the hope that it will be useful,
|
This program is distributed in the hope that it will be useful,
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
GNU General Public License for more details.
|
GNU General Public License for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with this program; if not, write to the Free Software
|
along with this program; if not, write to the Free Software
|
Foundation, Inc., 59 Temple Place - Suite 330,
|
Foundation, Inc., 59 Temple Place - Suite 330,
|
Boston, MA 02111-1307, USA. */
|
Boston, MA 02111-1307, USA. */
|
|
|
/* Forward decls for prototypes */
|
/* Forward decls for prototypes */
|
struct frame_info;
|
struct frame_info;
|
struct type;
|
struct type;
|
struct value;
|
struct value;
|
|
|
/* Minimum possible text address in AIX */
|
/* Minimum possible text address in AIX */
|
|
|
#define TEXT_SEGMENT_BASE 0x10000000
|
#define TEXT_SEGMENT_BASE 0x10000000
|
|
|
/* Load segment of a given pc value. */
|
/* Load segment of a given pc value. */
|
|
|
#define PC_LOAD_SEGMENT(PC) pc_load_segment_name(PC)
|
#define PC_LOAD_SEGMENT(PC) pc_load_segment_name(PC)
|
extern char *pc_load_segment_name PARAMS ((CORE_ADDR));
|
extern char *pc_load_segment_name PARAMS ((CORE_ADDR));
|
|
|
/* AIX cc seems to get this right. */
|
/* AIX cc seems to get this right. */
|
|
|
#define BELIEVE_PCC_PROMOTION 1
|
#define BELIEVE_PCC_PROMOTION 1
|
|
|
/* return true if a given `pc' value is in `call dummy' function. */
|
/* 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
|
/* FIXME: This just checks for the end of the stack, which is broken
|
for things like stepping through gcc nested function stubs. */
|
for things like stepping through gcc nested function stubs. */
|
#define PC_IN_CALL_DUMMY(STOP_PC, STOP_SP, STOP_FRAME_ADDR) \
|
#define PC_IN_CALL_DUMMY(STOP_PC, STOP_SP, STOP_FRAME_ADDR) \
|
(STOP_SP < STOP_PC && STOP_PC < STACK_END_ADDR)
|
(STOP_SP < STOP_PC && STOP_PC < STACK_END_ADDR)
|
|
|
#if 0
|
#if 0
|
extern unsigned int text_start, data_start;
|
extern unsigned int text_start, data_start;
|
extern char *corefile;
|
extern char *corefile;
|
#endif
|
#endif
|
extern int inferior_pid;
|
extern int inferior_pid;
|
|
|
/* We are missing register descriptions in the system header files. Sigh! */
|
/* We are missing register descriptions in the system header files. Sigh! */
|
|
|
struct regs
|
struct regs
|
{
|
{
|
int gregs[32]; /* general purpose registers */
|
int gregs[32]; /* general purpose registers */
|
int pc; /* program conter */
|
int pc; /* program conter */
|
int ps; /* processor status, or machine state */
|
int ps; /* processor status, or machine state */
|
};
|
};
|
|
|
struct fp_status
|
struct fp_status
|
{
|
{
|
double fpregs[32]; /* floating GP registers */
|
double fpregs[32]; /* floating GP registers */
|
};
|
};
|
|
|
|
|
/* To be used by skip_prologue. */
|
/* To be used by skip_prologue. */
|
|
|
struct rs6000_framedata
|
struct rs6000_framedata
|
{
|
{
|
int offset; /* total size of frame --- the distance
|
int offset; /* total size of frame --- the distance
|
by which we decrement sp to allocate
|
by which we decrement sp to allocate
|
the frame */
|
the frame */
|
int saved_gpr; /* smallest # of saved gpr */
|
int saved_gpr; /* smallest # of saved gpr */
|
int saved_fpr; /* smallest # of saved fpr */
|
int saved_fpr; /* smallest # of saved fpr */
|
int alloca_reg; /* alloca register number (frame ptr) */
|
int alloca_reg; /* alloca register number (frame ptr) */
|
char frameless; /* true if frameless functions. */
|
char frameless; /* true if frameless functions. */
|
char nosavedpc; /* true if pc not saved. */
|
char nosavedpc; /* true if pc not saved. */
|
int gpr_offset; /* offset of saved gprs from prev sp */
|
int gpr_offset; /* offset of saved gprs from prev sp */
|
int fpr_offset; /* offset of saved fprs from prev sp */
|
int fpr_offset; /* offset of saved fprs from prev sp */
|
int lr_offset; /* offset of saved lr */
|
int lr_offset; /* offset of saved lr */
|
int cr_offset; /* offset of saved cr */
|
int cr_offset; /* offset of saved cr */
|
};
|
};
|
|
|
/* Define the byte order of the machine. */
|
/* Define the byte order of the machine. */
|
|
|
#define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN
|
#define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN
|
|
|
/* AIX's assembler doesn't grok dollar signs in identifiers.
|
/* AIX's assembler doesn't grok dollar signs in identifiers.
|
So we use dots instead. This item must be coordinated with G++. */
|
So we use dots instead. This item must be coordinated with G++. */
|
#undef CPLUS_MARKER
|
#undef CPLUS_MARKER
|
#define CPLUS_MARKER '.'
|
#define CPLUS_MARKER '.'
|
|
|
/* Offset from address of function to start of its code.
|
/* Offset from address of function to start of its code.
|
Zero on most machines. */
|
Zero on most machines. */
|
|
|
#define FUNCTION_START_OFFSET 0
|
#define FUNCTION_START_OFFSET 0
|
|
|
/* Advance PC across any function entry prologue instructions
|
/* Advance PC across any function entry prologue instructions
|
to reach some "real" code. */
|
to reach some "real" code. */
|
|
|
extern CORE_ADDR rs6000_skip_prologue PARAMS ((CORE_ADDR));
|
extern CORE_ADDR rs6000_skip_prologue PARAMS ((CORE_ADDR));
|
#define SKIP_PROLOGUE(pc) (rs6000_skip_prologue (pc))
|
#define SKIP_PROLOGUE(pc) (rs6000_skip_prologue (pc))
|
|
|
extern CORE_ADDR skip_prologue PARAMS ((CORE_ADDR, struct rs6000_framedata *));
|
extern CORE_ADDR skip_prologue PARAMS ((CORE_ADDR, struct rs6000_framedata *));
|
|
|
|
|
/* If PC is in some function-call trampoline code, return the PC
|
/* If PC is in some function-call trampoline code, return the PC
|
where the function itself actually starts. If not, return NULL. */
|
where the function itself actually starts. If not, return NULL. */
|
|
|
#define SKIP_TRAMPOLINE_CODE(pc) skip_trampoline_code (pc)
|
#define SKIP_TRAMPOLINE_CODE(pc) skip_trampoline_code (pc)
|
extern CORE_ADDR skip_trampoline_code PARAMS ((CORE_ADDR));
|
extern CORE_ADDR skip_trampoline_code PARAMS ((CORE_ADDR));
|
|
|
/* Number of trap signals we need to skip over, once the inferior process
|
/* Number of trap signals we need to skip over, once the inferior process
|
starts running. */
|
starts running. */
|
|
|
#define START_INFERIOR_TRAPS_EXPECTED 2
|
#define START_INFERIOR_TRAPS_EXPECTED 2
|
|
|
/* AIX has a couple of strange returns from wait(). */
|
/* AIX has a couple of strange returns from wait(). */
|
|
|
#define CHILD_SPECIAL_WAITSTATUS(ourstatus, hoststatus) ( \
|
#define CHILD_SPECIAL_WAITSTATUS(ourstatus, hoststatus) ( \
|
/* "stop after load" status. */ \
|
/* "stop after load" status. */ \
|
(hoststatus) == 0x57c ? (ourstatus)->kind = TARGET_WAITKIND_LOADED, 1 : \
|
(hoststatus) == 0x57c ? (ourstatus)->kind = TARGET_WAITKIND_LOADED, 1 : \
|
\
|
\
|
/* signal 0. I have no idea why wait(2) returns with this status word. */ \
|
/* signal 0. I have no idea why wait(2) returns with this status word. */ \
|
/* It looks harmless. */ \
|
/* It looks harmless. */ \
|
(hoststatus) == 0x7f ? (ourstatus)->kind = TARGET_WAITKIND_SPURIOUS, 1 : \
|
(hoststatus) == 0x7f ? (ourstatus)->kind = TARGET_WAITKIND_SPURIOUS, 1 : \
|
\
|
\
|
/* A normal waitstatus. Let the usual macros deal with it. */ \
|
/* A normal waitstatus. Let the usual macros deal with it. */ \
|
0)
|
0)
|
|
|
/* In xcoff, we cannot process line numbers when we see them. This is
|
/* 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,
|
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
|
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(). */
|
once, when we are closing the current symbol table in end_symtab(). */
|
|
|
#define PROCESS_LINENUMBER_HOOK() aix_process_linenos ()
|
#define PROCESS_LINENUMBER_HOOK() aix_process_linenos ()
|
extern void aix_process_linenos PARAMS ((void));
|
extern void aix_process_linenos PARAMS ((void));
|
|
|
/* Immediately after a function call, return the saved pc.
|
/* Immediately after a function call, return the saved pc.
|
Can't go through the frames for this because on some machines
|
Can't go through the frames for this because on some machines
|
the new frame is not set up until the new function executes
|
the new frame is not set up until the new function executes
|
some instructions. */
|
some instructions. */
|
|
|
#define SAVED_PC_AFTER_CALL(frame) read_register (LR_REGNUM)
|
#define SAVED_PC_AFTER_CALL(frame) read_register (LR_REGNUM)
|
|
|
/* Address of end of stack space. */
|
/* Address of end of stack space. */
|
|
|
#define STACK_END_ADDR 0x2ff80000
|
#define STACK_END_ADDR 0x2ff80000
|
|
|
/* Stack grows downward. */
|
/* Stack grows downward. */
|
|
|
#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
|
#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
|
|
|
/* This is how arguments pushed onto stack or passed in registers.
|
/* This is how arguments pushed onto stack or passed in registers.
|
Stack must be aligned on 64-bit boundaries when synthesizing
|
Stack must be aligned on 64-bit boundaries when synthesizing
|
function calls. We don't need STACK_ALIGN, PUSH_ARGUMENTS will
|
function calls. We don't need STACK_ALIGN, PUSH_ARGUMENTS will
|
handle it. */
|
handle it. */
|
|
|
#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
|
#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
|
(rs6000_push_arguments((nargs), (args), (sp), (struct_return), (struct_addr)))
|
(rs6000_push_arguments((nargs), (args), (sp), (struct_return), (struct_addr)))
|
extern CORE_ADDR rs6000_push_arguments PARAMS ((int, struct value **, CORE_ADDR, int, CORE_ADDR));
|
extern CORE_ADDR rs6000_push_arguments PARAMS ((int, struct value **, CORE_ADDR, int, CORE_ADDR));
|
|
|
/* BREAKPOINT_FROM_PC uses the program counter value to determine the
|
/* BREAKPOINT_FROM_PC uses the program counter value to determine the
|
breakpoint that should be used */
|
breakpoint that should be used */
|
extern breakpoint_from_pc_fn rs6000_breakpoint_from_pc;
|
extern breakpoint_from_pc_fn rs6000_breakpoint_from_pc;
|
#define BREAKPOINT_FROM_PC(pcptr, lenptr) rs6000_breakpoint_from_pc (pcptr, lenptr)
|
#define BREAKPOINT_FROM_PC(pcptr, lenptr) rs6000_breakpoint_from_pc (pcptr, lenptr)
|
|
|
/* Amount PC must be decremented by after a breakpoint.
|
/* Amount PC must be decremented by after a breakpoint.
|
This is often the number of bytes in BREAKPOINT
|
This is often the number of bytes in BREAKPOINT
|
but not always. */
|
but not always. */
|
|
|
#define DECR_PC_AFTER_BREAK 0
|
#define DECR_PC_AFTER_BREAK 0
|
|
|
/* Say how long (ordinary) registers are. This is a piece of bogosity
|
/* 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
|
used in push_word and a few other places; REGISTER_RAW_SIZE is the
|
real way to know how big a register is. */
|
real way to know how big a register is. */
|
#define REGISTER_SIZE 4
|
#define REGISTER_SIZE 4
|
|
|
|
|
/* Return the name of register number REG. This may return "" to
|
/* Return the name of register number REG. This may return "" to
|
indicate a register number that's not used on this variant.
|
indicate a register number that's not used on this variant.
|
(Register numbers may be sparse for consistency between variants.) */
|
(Register numbers may be sparse for consistency between variants.) */
|
#define REGISTER_NAME(reg) (rs6000_register_name(reg))
|
#define REGISTER_NAME(reg) (rs6000_register_name(reg))
|
extern char *rs6000_register_name (int reg);
|
extern char *rs6000_register_name (int reg);
|
|
|
/* Number of machine registers */
|
/* Number of machine registers */
|
#define NUM_REGS 183
|
#define NUM_REGS 183
|
|
|
/* Register numbers of various important registers.
|
/* Register numbers of various important registers.
|
Note that some of these values are "real" register numbers,
|
Note that some of these values are "real" register numbers,
|
and correspond to the general registers of the machine,
|
and correspond to the general registers of the machine,
|
and some are "phony" register numbers which are too large
|
and some are "phony" register numbers which are too large
|
to be actual register numbers as far as the user is concerned
|
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. */
|
but do serve to get the desired values when passed to read_register. */
|
|
|
#define FP_REGNUM 1 /* Contains address of executing stack frame */
|
#define FP_REGNUM 1 /* Contains address of executing stack frame */
|
#define SP_REGNUM 1 /* Contains address of top of stack */
|
#define SP_REGNUM 1 /* Contains address of top of stack */
|
#define TOC_REGNUM 2 /* TOC register */
|
#define TOC_REGNUM 2 /* TOC register */
|
#define FP0_REGNUM 32 /* Floating point register 0 */
|
#define FP0_REGNUM 32 /* Floating point register 0 */
|
#define GP0_REGNUM 0 /* GPR register 0 */
|
#define GP0_REGNUM 0 /* GPR register 0 */
|
#define FP0_REGNUM 32 /* FPR (Floating point) register 0 */
|
#define FP0_REGNUM 32 /* FPR (Floating point) register 0 */
|
#define FPLAST_REGNUM 63 /* Last floating point register */
|
#define FPLAST_REGNUM 63 /* Last floating point register */
|
|
|
/* Special purpose registers... */
|
/* Special purpose registers... */
|
/* P.S. keep these in the same order as in /usr/mstsave.h `mstsave'
|
/* P.S. keep these in the same order as in /usr/mstsave.h `mstsave'
|
structure, for easier processing */
|
structure, for easier processing */
|
|
|
#define PC_REGNUM 64 /* Program counter (instruction address %iar) */
|
#define PC_REGNUM 64 /* Program counter (instruction address %iar) */
|
#define PS_REGNUM 65 /* Processor (or machine) status (%msr) */
|
#define PS_REGNUM 65 /* Processor (or machine) status (%msr) */
|
#define CR_REGNUM 66 /* Condition register */
|
#define CR_REGNUM 66 /* Condition register */
|
#define LR_REGNUM 67 /* Link register */
|
#define LR_REGNUM 67 /* Link register */
|
#define CTR_REGNUM 68 /* Count register */
|
#define CTR_REGNUM 68 /* Count register */
|
#define XER_REGNUM 69 /* Fixed point exception registers */
|
#define XER_REGNUM 69 /* Fixed point exception registers */
|
#define MQ_REGNUM 70 /* Multiply/quotient register */
|
#define MQ_REGNUM 70 /* Multiply/quotient register */
|
|
|
/* These #defines are used to parse core files and talk to ptrace, so they
|
/* These #defines are used to parse core files and talk to ptrace, so they
|
must remain fixed. */
|
must remain fixed. */
|
#define FIRST_UISA_SP_REGNUM 64 /* first special register number */
|
#define FIRST_UISA_SP_REGNUM 64 /* first special register number */
|
#define LAST_UISA_SP_REGNUM 70 /* last special register number */
|
#define LAST_UISA_SP_REGNUM 70 /* last special register number */
|
|
|
/* This is the offset in REG_NAMES at which the `set processor'
|
/* This is the offset in REG_NAMES at which the `set processor'
|
command starts plugging in its names. */
|
command starts plugging in its names. */
|
#define FIRST_VARIANT_REGISTER 66
|
#define FIRST_VARIANT_REGISTER 66
|
|
|
/* Total amount of space needed to store our copies of the machine's
|
/* Total amount of space needed to store our copies of the machine's
|
register state, the array `registers'.
|
register state, the array `registers'.
|
32 4-byte gpr's
|
32 4-byte gpr's
|
32 8-byte fpr's
|
32 8-byte fpr's
|
7 4-byte UISA special purpose registers,
|
7 4-byte UISA special purpose registers,
|
16 4-byte segment registers,
|
16 4-byte segment registers,
|
32 4-byte standard OEA special-purpose registers,
|
32 4-byte standard OEA special-purpose registers,
|
and up to 64 4-byte non-standard OEA special purpose regs.
|
and up to 64 4-byte non-standard OEA special purpose regs.
|
total: (+ (* 32 4) (* 32 8) (* 7 4) (* 16 4) (* 32 4) (* 64 4)) 860 bytes
|
total: (+ (* 32 4) (* 32 8) (* 7 4) (* 16 4) (* 32 4) (* 64 4)) 860 bytes
|
Keep some extra space for now, in case to add more. */
|
Keep some extra space for now, in case to add more. */
|
#define REGISTER_BYTES 880
|
#define REGISTER_BYTES 880
|
|
|
|
|
/* Index within `registers' of the first byte of the space for
|
/* Index within `registers' of the first byte of the space for
|
register N. */
|
register N. */
|
|
|
#define REGISTER_BYTE(N) \
|
#define REGISTER_BYTE(N) \
|
( \
|
( \
|
((N) > FPLAST_REGNUM) ? ((((N) - FPLAST_REGNUM -1) * 4) + 384)\
|
((N) > FPLAST_REGNUM) ? ((((N) - FPLAST_REGNUM -1) * 4) + 384)\
|
:((N) >= FP0_REGNUM) ? ((((N) - FP0_REGNUM) * 8) + 128) \
|
:((N) >= FP0_REGNUM) ? ((((N) - FP0_REGNUM) * 8) + 128) \
|
:((N) * 4) )
|
:((N) * 4) )
|
|
|
/* Number of bytes of storage in the actual machine representation
|
/* Number of bytes of storage in the actual machine representation
|
for register N. */
|
for register N. */
|
/* Note that the unsigned cast here forces the result of the
|
/* Note that the unsigned cast here forces the result of the
|
subtraction to very high positive values if N < FP0_REGNUM */
|
subtraction to very high positive values if N < FP0_REGNUM */
|
|
|
#define REGISTER_RAW_SIZE(N) (((unsigned)(N) - FP0_REGNUM) < 32 ? 8 : 4)
|
#define REGISTER_RAW_SIZE(N) (((unsigned)(N) - FP0_REGNUM) < 32 ? 8 : 4)
|
|
|
/* Number of bytes of storage in the program's representation
|
/* Number of bytes of storage in the program's representation
|
for register N. On the RS6000, all regs are 4 bytes
|
for register N. On the RS6000, all regs are 4 bytes
|
except the floating point regs which are 8-byte doubles. */
|
except the floating point regs which are 8-byte doubles. */
|
|
|
#define REGISTER_VIRTUAL_SIZE(N) (((unsigned)(N) - FP0_REGNUM) < 32 ? 8 : 4)
|
#define REGISTER_VIRTUAL_SIZE(N) (((unsigned)(N) - FP0_REGNUM) < 32 ? 8 : 4)
|
|
|
/* Largest value REGISTER_RAW_SIZE can have. */
|
/* Largest value REGISTER_RAW_SIZE can have. */
|
|
|
#define MAX_REGISTER_RAW_SIZE 8
|
#define MAX_REGISTER_RAW_SIZE 8
|
|
|
/* Largest value REGISTER_VIRTUAL_SIZE can have. */
|
/* Largest value REGISTER_VIRTUAL_SIZE can have. */
|
|
|
#define MAX_REGISTER_VIRTUAL_SIZE 8
|
#define MAX_REGISTER_VIRTUAL_SIZE 8
|
|
|
/* convert a dbx stab register number (from `r' declaration) to a gdb REGNUM */
|
/* convert a dbx stab register number (from `r' declaration) to a gdb REGNUM */
|
|
|
#define STAB_REG_TO_REGNUM(value) (value)
|
#define STAB_REG_TO_REGNUM(value) (value)
|
|
|
/* Nonzero if register N requires conversion
|
/* Nonzero if register N requires conversion
|
from raw format to virtual format.
|
from raw format to virtual format.
|
The register format for rs6000 floating point registers is always
|
The register format for rs6000 floating point registers is always
|
double, we need a conversion if the memory format is float. */
|
double, we need a conversion if the memory format is float. */
|
|
|
#define REGISTER_CONVERTIBLE(N) ((N) >= FP0_REGNUM && (N) <= FPLAST_REGNUM)
|
#define REGISTER_CONVERTIBLE(N) ((N) >= FP0_REGNUM && (N) <= FPLAST_REGNUM)
|
|
|
/* Convert data from raw format for register REGNUM in buffer FROM
|
/* Convert data from raw format for register REGNUM in buffer FROM
|
to virtual format with type TYPE in buffer TO. */
|
to virtual format with type TYPE in buffer TO. */
|
|
|
#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \
|
#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \
|
{ \
|
{ \
|
if (TYPE_LENGTH (TYPE) != REGISTER_RAW_SIZE (REGNUM)) \
|
if (TYPE_LENGTH (TYPE) != REGISTER_RAW_SIZE (REGNUM)) \
|
{ \
|
{ \
|
double val = extract_floating ((FROM), REGISTER_RAW_SIZE (REGNUM)); \
|
double val = extract_floating ((FROM), REGISTER_RAW_SIZE (REGNUM)); \
|
store_floating ((TO), TYPE_LENGTH (TYPE), val); \
|
store_floating ((TO), TYPE_LENGTH (TYPE), val); \
|
} \
|
} \
|
else \
|
else \
|
memcpy ((TO), (FROM), REGISTER_RAW_SIZE (REGNUM)); \
|
memcpy ((TO), (FROM), REGISTER_RAW_SIZE (REGNUM)); \
|
}
|
}
|
|
|
/* Convert data from virtual format with type TYPE in buffer FROM
|
/* Convert data from virtual format with type TYPE in buffer FROM
|
to raw format for register REGNUM in buffer TO. */
|
to raw format for register REGNUM in buffer TO. */
|
|
|
#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \
|
#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \
|
{ \
|
{ \
|
if (TYPE_LENGTH (TYPE) != REGISTER_RAW_SIZE (REGNUM)) \
|
if (TYPE_LENGTH (TYPE) != REGISTER_RAW_SIZE (REGNUM)) \
|
{ \
|
{ \
|
double val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \
|
double val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \
|
store_floating ((TO), REGISTER_RAW_SIZE (REGNUM), val); \
|
store_floating ((TO), REGISTER_RAW_SIZE (REGNUM), val); \
|
} \
|
} \
|
else \
|
else \
|
memcpy ((TO), (FROM), REGISTER_RAW_SIZE (REGNUM)); \
|
memcpy ((TO), (FROM), REGISTER_RAW_SIZE (REGNUM)); \
|
}
|
}
|
|
|
/* Return the GDB type object for the "standard" data type
|
/* Return the GDB type object for the "standard" data type
|
of data in register N. */
|
of data in register N. */
|
|
|
#define REGISTER_VIRTUAL_TYPE(N) \
|
#define REGISTER_VIRTUAL_TYPE(N) \
|
(((unsigned)(N) - FP0_REGNUM) < 32 ? builtin_type_double : builtin_type_int)
|
(((unsigned)(N) - FP0_REGNUM) < 32 ? builtin_type_double : builtin_type_int)
|
|
|
/* Store the address of the place in which to copy the structure the
|
/* Store the address of the place in which to copy the structure the
|
subroutine will return. This is called from call_function. */
|
subroutine will return. This is called from call_function. */
|
/* in RS6000, struct return addresses are passed as an extra parameter in r3.
|
/* 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.
|
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
|
Since gdb needs to find it, we will store in a designated variable
|
`rs6000_struct_return_address'. */
|
`rs6000_struct_return_address'. */
|
|
|
extern CORE_ADDR rs6000_struct_return_address;
|
extern CORE_ADDR rs6000_struct_return_address;
|
|
|
#define STORE_STRUCT_RETURN(ADDR, SP) \
|
#define STORE_STRUCT_RETURN(ADDR, SP) \
|
{ write_register (3, (ADDR)); \
|
{ write_register (3, (ADDR)); \
|
rs6000_struct_return_address = (ADDR); }
|
rs6000_struct_return_address = (ADDR); }
|
|
|
/* Extract from an array REGBUF containing the (raw) register state
|
/* Extract from an array REGBUF containing the (raw) register state
|
a function return value of type TYPE, and copy that, in virtual format,
|
a function return value of type TYPE, and copy that, in virtual format,
|
into VALBUF. */
|
into VALBUF. */
|
|
|
/* #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
|
/* #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
|
memcpy (VALBUF, REGBUF, TYPE_LENGTH (TYPE)) */
|
memcpy (VALBUF, REGBUF, TYPE_LENGTH (TYPE)) */
|
|
|
#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
|
#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
|
extract_return_value(TYPE,REGBUF,VALBUF)
|
extract_return_value(TYPE,REGBUF,VALBUF)
|
extern void extract_return_value PARAMS ((struct type *, char[], char *));
|
extern void extract_return_value PARAMS ((struct type *, char[], char *));
|
|
|
/* Write into appropriate registers a function return value
|
/* Write into appropriate registers a function return value
|
of type TYPE, given in virtual format. */
|
of type TYPE, given in virtual format. */
|
|
|
#define STORE_RETURN_VALUE(TYPE,VALBUF) \
|
#define STORE_RETURN_VALUE(TYPE,VALBUF) \
|
{ \
|
{ \
|
if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \
|
if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \
|
\
|
\
|
/* Floating point values are returned starting from FPR1 and up. \
|
/* Floating point values are returned starting from FPR1 and up. \
|
Say a double_double_double type could be returned in \
|
Say a double_double_double type could be returned in \
|
FPR1/FPR2/FPR3 triple. */ \
|
FPR1/FPR2/FPR3 triple. */ \
|
\
|
\
|
write_register_bytes (REGISTER_BYTE (FP0_REGNUM+1), (VALBUF), \
|
write_register_bytes (REGISTER_BYTE (FP0_REGNUM+1), (VALBUF), \
|
TYPE_LENGTH (TYPE)); \
|
TYPE_LENGTH (TYPE)); \
|
else \
|
else \
|
/* Everything else is returned in GPR3 and up. */ \
|
/* Everything else is returned in GPR3 and up. */ \
|
write_register_bytes (REGISTER_BYTE (GP0_REGNUM+3), (VALBUF), \
|
write_register_bytes (REGISTER_BYTE (GP0_REGNUM+3), (VALBUF), \
|
TYPE_LENGTH (TYPE)); \
|
TYPE_LENGTH (TYPE)); \
|
}
|
}
|
|
|
|
|
/* Extract from an array REGBUF containing the (raw) register state
|
/* Extract from an array REGBUF containing the (raw) register state
|
the address in which a function should return its structure value,
|
the address in which a function should return its structure value,
|
as a CORE_ADDR (or an expression that can be used as one). */
|
as a CORE_ADDR (or an expression that can be used as one). */
|
|
|
#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) rs6000_struct_return_address
|
#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) rs6000_struct_return_address
|
|
|
/* Describe the pointer in each stack frame to the previous stack frame
|
/* Describe the pointer in each stack frame to the previous stack frame
|
(its caller). */
|
(its caller). */
|
|
|
/* FRAME_CHAIN takes a frame's nominal address
|
/* FRAME_CHAIN takes a frame's nominal address
|
and produces the frame's chain-pointer. */
|
and produces the frame's chain-pointer. */
|
|
|
/* In the case of the RS6000, the frame's nominal address
|
/* 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. */
|
is the address of a 4-byte word containing the calling frame's address. */
|
|
|
#define FRAME_CHAIN(thisframe) rs6000_frame_chain (thisframe)
|
#define FRAME_CHAIN(thisframe) rs6000_frame_chain (thisframe)
|
CORE_ADDR rs6000_frame_chain PARAMS ((struct frame_info *));
|
CORE_ADDR rs6000_frame_chain PARAMS ((struct frame_info *));
|
|
|
/* Define other aspects of the stack frame. */
|
/* Define other aspects of the stack frame. */
|
|
|
/* A macro that tells us whether the function invocation represented
|
/* 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
|
by FI does not have a frame on the stack associated with it. If it
|
does not, FRAMELESS is set to 1, else 0. */
|
does not, FRAMELESS is set to 1, else 0. */
|
|
|
extern int rs6000_frameless_function_invocation (struct frame_info *);
|
extern int rs6000_frameless_function_invocation (struct frame_info *);
|
#define FRAMELESS_FUNCTION_INVOCATION(FI) \
|
#define FRAMELESS_FUNCTION_INVOCATION(FI) \
|
(rs6000_frameless_function_invocation (FI))
|
(rs6000_frameless_function_invocation (FI))
|
|
|
#define INIT_FRAME_PC_FIRST(fromleaf, prev) \
|
#define INIT_FRAME_PC_FIRST(fromleaf, prev) \
|
prev->pc = (fromleaf ? SAVED_PC_AFTER_CALL (prev->next) : \
|
prev->pc = (fromleaf ? SAVED_PC_AFTER_CALL (prev->next) : \
|
prev->next ? FRAME_SAVED_PC (prev->next) : read_pc ());
|
prev->next ? FRAME_SAVED_PC (prev->next) : read_pc ());
|
#define INIT_FRAME_PC(fromleaf, prev) /* nothing */
|
#define INIT_FRAME_PC(fromleaf, prev) /* nothing */
|
extern void rs6000_init_extra_frame_info (int fromleaf, struct frame_info *);
|
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)
|
#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
|
/* If the kernel has to deliver a signal, it pushes a sigcontext
|
structure on the stack and then calls the signal handler, passing
|
structure on the stack and then calls the signal handler, passing
|
the address of the sigcontext in an argument register. Usually
|
the address of the sigcontext in an argument register. Usually
|
the signal handler doesn't save this register, so we have to
|
the signal handler doesn't save this register, so we have to
|
access the sigcontext structure via an offset from the signal handler
|
access the sigcontext structure via an offset from the signal handler
|
frame.
|
frame.
|
The following constants were determined by experimentation on AIX 3.2. */
|
The following constants were determined by experimentation on AIX 3.2. */
|
#define SIG_FRAME_PC_OFFSET 96
|
#define SIG_FRAME_PC_OFFSET 96
|
#define SIG_FRAME_LR_OFFSET 108
|
#define SIG_FRAME_LR_OFFSET 108
|
#define SIG_FRAME_FP_OFFSET 284
|
#define SIG_FRAME_FP_OFFSET 284
|
|
|
/* Default offset from SP where the LR is stored */
|
/* Default offset from SP where the LR is stored */
|
#define DEFAULT_LR_SAVE 8
|
#define DEFAULT_LR_SAVE 8
|
|
|
/* Return saved PC from a frame */
|
/* Return saved PC from a frame */
|
#define FRAME_SAVED_PC(FRAME) rs6000_frame_saved_pc (FRAME)
|
#define FRAME_SAVED_PC(FRAME) rs6000_frame_saved_pc (FRAME)
|
|
|
extern unsigned long rs6000_frame_saved_pc (struct frame_info *);
|
extern unsigned long rs6000_frame_saved_pc (struct frame_info *);
|
|
|
extern CORE_ADDR rs6000_frame_args_address 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_ARGS_ADDRESS(FI) rs6000_frame_args_address (FI)
|
|
|
#define FRAME_LOCALS_ADDRESS(FI) 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.
|
/* Set VAL to the number of args passed to frame described by FI.
|
Can set VAL to -1, meaning no way to tell. */
|
Can set VAL to -1, meaning no way to tell. */
|
|
|
/* We can't tell how many args there are
|
/* We can't tell how many args there are
|
now that the C compiler delays popping them. */
|
now that the C compiler delays popping them. */
|
|
|
#define FRAME_NUM_ARGS(fi) (-1)
|
#define FRAME_NUM_ARGS(fi) (-1)
|
|
|
/* Return number of bytes at start of arglist that are not really args. */
|
/* Return number of bytes at start of arglist that are not really args. */
|
|
|
#define FRAME_ARGS_SKIP 8 /* Not sure on this. FIXMEmgo */
|
#define FRAME_ARGS_SKIP 8 /* Not sure on this. FIXMEmgo */
|
|
|
/* Put here the code to store, into a struct frame_saved_regs,
|
/* Put here the code to store, into a struct frame_saved_regs,
|
the addresses of the saved registers of frame described by FRAME_INFO.
|
the addresses of the saved registers of frame described by FRAME_INFO.
|
This includes special registers such as pc and fp saved in special
|
This includes special registers such as pc and fp saved in special
|
ways in the stack frame. sp is even more special:
|
ways in the stack frame. sp is even more special:
|
the address we return for it IS the sp for the next frame. */
|
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
|
/* 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
|
not sure if it will be needed. The following macro takes care of gpr's
|
and fpr's only. */
|
and fpr's only. */
|
|
|
extern void rs6000_frame_init_saved_regs PARAMS ((struct frame_info *));
|
extern void rs6000_frame_init_saved_regs PARAMS ((struct frame_info *));
|
#define FRAME_INIT_SAVED_REGS(FI) rs6000_frame_init_saved_regs (FI)
|
#define FRAME_INIT_SAVED_REGS(FI) rs6000_frame_init_saved_regs (FI)
|
|
|
/* Things needed for making the inferior call functions. */
|
/* Things needed for making the inferior call functions. */
|
|
|
/* Push an empty stack frame, to record the current PC, etc. */
|
/* Push an empty stack frame, to record the current PC, etc. */
|
/* Change these names into rs6k_{push, pop}_frame(). FIXMEmgo. */
|
/* Change these names into rs6k_{push, pop}_frame(). FIXMEmgo. */
|
|
|
#define PUSH_DUMMY_FRAME push_dummy_frame ()
|
#define PUSH_DUMMY_FRAME push_dummy_frame ()
|
extern void push_dummy_frame PARAMS ((void));
|
extern void push_dummy_frame PARAMS ((void));
|
|
|
/* Discard from the stack the innermost frame,
|
/* Discard from the stack the innermost frame,
|
restoring all saved registers. */
|
restoring all saved registers. */
|
|
|
#define POP_FRAME pop_frame ()
|
#define POP_FRAME pop_frame ()
|
extern void pop_frame PARAMS ((void));
|
extern void pop_frame PARAMS ((void));
|
|
|
/* This sequence of words is the instructions:
|
/* This sequence of words is the instructions:
|
|
|
mflr r0 // 0x7c0802a6
|
mflr r0 // 0x7c0802a6
|
// save fpr's
|
// save fpr's
|
stfd r?, num(r1) // 0xd8010000 there should be 32 of this??
|
stfd r?, num(r1) // 0xd8010000 there should be 32 of this??
|
// save gpr's
|
// save gpr's
|
stm r0, num(r1) // 0xbc010000
|
stm r0, num(r1) // 0xbc010000
|
stu r1, num(r1) // 0x94210000
|
stu r1, num(r1) // 0x94210000
|
|
|
// the function we want to branch might be in a different load
|
// the function we want to branch might be in a different load
|
// segment. reset the toc register. Note that the actual toc address
|
// segment. reset the toc register. Note that the actual toc address
|
// will be fix by fix_call_dummy () along with function address.
|
// will be fix by fix_call_dummy () along with function address.
|
|
|
st r2, 0x14(r1) // 0x90410014 save toc register
|
st r2, 0x14(r1) // 0x90410014 save toc register
|
liu r2, 0x1234 // 0x3c401234 reset a new toc value 0x12345678
|
liu r2, 0x1234 // 0x3c401234 reset a new toc value 0x12345678
|
oril r2, r2,0x5678 // 0x60425678
|
oril r2, r2,0x5678 // 0x60425678
|
|
|
// load absolute address 0x12345678 to r0
|
// load absolute address 0x12345678 to r0
|
liu r0, 0x1234 // 0x3c001234
|
liu r0, 0x1234 // 0x3c001234
|
oril r0, r0,0x5678 // 0x60005678
|
oril r0, r0,0x5678 // 0x60005678
|
mtctr r0 // 0x7c0903a6 ctr <- r0
|
mtctr r0 // 0x7c0903a6 ctr <- r0
|
bctrl // 0x4e800421 jump subroutine 0x12345678 (%ctr)
|
bctrl // 0x4e800421 jump subroutine 0x12345678 (%ctr)
|
cror 0xf, 0xf, 0xf // 0x4def7b82
|
cror 0xf, 0xf, 0xf // 0x4def7b82
|
brpt // 0x7d821008, breakpoint
|
brpt // 0x7d821008, breakpoint
|
cror 0xf, 0xf, 0xf // 0x4def7b82 (for 8 byte alignment)
|
cror 0xf, 0xf, 0xf // 0x4def7b82 (for 8 byte alignment)
|
|
|
|
|
We actually start executing by saving the toc register first, since the pushing
|
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,
|
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
|
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.
|
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,
|
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.
|
and we cannot allow to push the registers again.
|
*/
|
*/
|
|
|
#define CALL_DUMMY {0x7c0802a6, 0xd8010000, 0xbc010000, 0x94210000, \
|
#define CALL_DUMMY {0x7c0802a6, 0xd8010000, 0xbc010000, 0x94210000, \
|
0x90410014, 0x3c401234, 0x60425678, \
|
0x90410014, 0x3c401234, 0x60425678, \
|
0x3c001234, 0x60005678, 0x7c0903a6, 0x4e800421, \
|
0x3c001234, 0x60005678, 0x7c0903a6, 0x4e800421, \
|
0x4def7b82, 0x7d821008, 0x4def7b82 }
|
0x4def7b82, 0x7d821008, 0x4def7b82 }
|
|
|
|
|
/* keep this as multiple of 8 (%sp requires 8 byte alignment) */
|
/* keep this as multiple of 8 (%sp requires 8 byte alignment) */
|
#define CALL_DUMMY_LENGTH 56
|
#define CALL_DUMMY_LENGTH 56
|
|
|
#define CALL_DUMMY_START_OFFSET 16
|
#define CALL_DUMMY_START_OFFSET 16
|
|
|
/* Insert the specified number of args and function address into a
|
/* Insert the specified number of args and function address into a
|
call sequence of the above form stored at DUMMYNAME. */
|
call sequence of the above form stored at DUMMYNAME. */
|
|
|
#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
|
#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
|
rs6000_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,
|
extern void rs6000_fix_call_dummy PARAMS ((char *, CORE_ADDR, CORE_ADDR,
|
int, struct value **,
|
int, struct value **,
|
struct type *, int));
|
struct type *, int));
|
|
|
/* Hook in rs6000-tdep.c for determining the TOC address when
|
/* Hook in rs6000-tdep.c for determining the TOC address when
|
calling functions in the inferior. */
|
calling functions in the inferior. */
|
extern
|
extern
|
CORE_ADDR (*find_toc_address_hook) PARAMS ((CORE_ADDR));
|
CORE_ADDR (*find_toc_address_hook) PARAMS ((CORE_ADDR));
|
|
|
/* xcoffread.c provides a function to determine the TOC offset
|
/* xcoffread.c provides a function to determine the TOC offset
|
for a given object file.
|
for a given object file.
|
It is used under native AIX configurations for determining the
|
It is used under native AIX configurations for determining the
|
TOC address when calling functions in the inferior. */
|
TOC address when calling functions in the inferior. */
|
|
|
struct objfile;
|
struct objfile;
|
extern CORE_ADDR get_toc_offset PARAMS ((struct objfile *));
|
extern CORE_ADDR get_toc_offset PARAMS ((struct objfile *));
|
|
|
/* Usually a function pointer's representation is simply the address
|
/* Usually a function pointer's representation is simply the address
|
of the function. On the RS/6000 however, a function pointer is
|
of the function. On the RS/6000 however, a function pointer is
|
represented by a pointer to a TOC entry. This TOC entry contains
|
represented by a pointer to a TOC entry. This TOC entry contains
|
three words, the first word is the address of the function, the
|
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
|
second word is the TOC pointer (r2), and the third word is the
|
static chain value. Throughout GDB it is currently assumed that a
|
static chain value. Throughout GDB it is currently assumed that a
|
function pointer contains the address of the function, which is not
|
function pointer contains the address of the function, which is not
|
easy to fix. In addition, the conversion of a function address to
|
easy to fix. In addition, the conversion of a function address to
|
a function pointer would require allocation of a TOC entry in the
|
a function pointer would require allocation of a TOC entry in the
|
inferior's memory space, with all its drawbacks. To be able to
|
inferior's memory space, with all its drawbacks. To be able to
|
call C++ virtual methods in the inferior (which are called via
|
call C++ virtual methods in the inferior (which are called via
|
function pointers), find_function_addr uses this macro to get the
|
function pointers), find_function_addr uses this macro to get the
|
function address from a function pointer. */
|
function address from a function pointer. */
|
|
|
#define CONVERT_FROM_FUNC_PTR_ADDR(ADDR) \
|
#define CONVERT_FROM_FUNC_PTR_ADDR(ADDR) \
|
(is_magic_function_pointer (ADDR) ? read_memory_integer (ADDR, 4) : (ADDR))
|
(is_magic_function_pointer (ADDR) ? read_memory_integer (ADDR, 4) : (ADDR))
|
extern int is_magic_function_pointer PARAMS ((CORE_ADDR));
|
extern int is_magic_function_pointer PARAMS ((CORE_ADDR));
|
|
|
/* Flag for machine-specific stuff in shared files. FIXME */
|
/* Flag for machine-specific stuff in shared files. FIXME */
|
#define IBM6000_TARGET
|
#define IBM6000_TARGET
|
|
|
/* RS6000/AIX does not support PT_STEP. Has to be simulated. */
|
/* RS6000/AIX does not support PT_STEP. Has to be simulated. */
|
|
|
#define SOFTWARE_SINGLE_STEP_P 1
|
#define SOFTWARE_SINGLE_STEP_P 1
|
extern void rs6000_software_single_step PARAMS ((unsigned int, int));
|
extern void rs6000_software_single_step PARAMS ((unsigned int, int));
|
#define SOFTWARE_SINGLE_STEP(sig,bp_p) rs6000_software_single_step (sig, bp_p)
|
#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
|
/* If the current gcc for for this target does not produce correct debugging
|
information for float parameters, both prototyped and unprototyped, then
|
information for float parameters, both prototyped and unprototyped, then
|
define this macro. This forces gdb to always assume that floats are
|
define this macro. This forces gdb to always assume that floats are
|
passed as doubles and then converted in the callee.
|
passed as doubles and then converted in the callee.
|
|
|
For the PowerPC, it appears that the debug info marks the parameters as
|
For the PowerPC, it appears that the debug info marks the parameters as
|
floats regardless of whether the function is prototyped, but the actual
|
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
|
values are always passed in as doubles. Thus by setting this to 1, both
|
types of calls will work. */
|
types of calls will work. */
|
|
|
#define COERCE_FLOAT_TO_DOUBLE(formal, actual) (1)
|
#define COERCE_FLOAT_TO_DOUBLE(formal, actual) (1)
|
|
|
