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* ns32k-tdep.c (ns32k_saved_pc_after_call,

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ns32k_store_struct_return, ns32k_extract_return_value,
ns32k_store_return_value, ns32k_extract_struct_value_address): New
functions.
* config/ns32k/tm-umax.h (SAVED_PC_AFTER_CALL): Define as
ns32k_saved_pc_after_call.
(STORE_STRUCT_RETURN): Define as ns32k_store_struct_return.
(EXTRACT_RETURN_VALUE): Define as ns32k_extract_return_value.
(STORE_RETURN_VALUE): Define as ns32k_store_return_value.
(EXTRACT_STRUCT_VALUE_ADDRESS): Define as
ns32k_extract_struct_value_address.
This commit is contained in:
Jason Thorpe 2002-05-26 23:06:08 +00:00
parent 7bcc927b94
commit efb2c70e1e
3 changed files with 67 additions and 30 deletions
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14
gdb/ChangeLog
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@ -1,3 +1,17 @@
2002-05-26 Jason Thorpe <thorpej@wasabisystems.com>
* ns32k-tdep.c (ns32k_saved_pc_after_call,
ns32k_store_struct_return, ns32k_extract_return_value,
ns32k_store_return_value, ns32k_extract_struct_value_address): New
functions.
* config/ns32k/tm-umax.h (SAVED_PC_AFTER_CALL): Define as
ns32k_saved_pc_after_call.
(STORE_STRUCT_RETURN): Define as ns32k_store_struct_return.
(EXTRACT_RETURN_VALUE): Define as ns32k_extract_return_value.
(STORE_RETURN_VALUE): Define as ns32k_store_return_value.
(EXTRACT_STRUCT_VALUE_ADDRESS): Define as
ns32k_extract_struct_value_address.
2002-05-26 Jason Thorpe <thorpej@wasabisystems.com>
* ns32k-tdep.c (ns32k_call_dummy_words, sizeof_ns32k_call_dummy_words,

45
gdb/config/ns32k/tm-umax.h
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@ -21,6 +21,9 @@
#include "regcache.h"
struct value;
struct type;
/* Need to get function ends by adding this to epilogue address from .bf
record, not using x_fsize field. */
#define FUNCTION_EPILOGUE_SIZE 4
@ -36,13 +39,8 @@
extern CORE_ADDR umax_skip_prologue (CORE_ADDR);
#define SKIP_PROLOGUE(pc) (umax_skip_prologue (pc))
/* Immediately after a function call, return the saved pc.
Can't always 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_memory_integer (read_register (SP_REGNUM), 4)
CORE_ADDR ns32k_saved_pc_after_call (struct frame_info *);
#define SAVED_PC_AFTER_CALL(frame) ns32k_saved_pc_after_call ((frame))
/* Address of end of stack space. */
@ -126,32 +124,21 @@ extern int ns32k_register_virtual_size (int);
struct type *ns32k_register_virtual_type (int);
#define REGISTER_VIRTUAL_TYPE(N) ns32k_register_virtual_type ((N))
/* Store the address of the place in which to copy the structure the
subroutine will return. This is called from call_function.
On this machine this is a no-op, because gcc isn't used on it
yet. So this calling convention is not used. */
#define STORE_STRUCT_RETURN(ADDR, SP)
/* 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. */
extern void ns32k_store_struct_return (CORE_ADDR, CORE_ADDR);
#define STORE_STRUCT_RETURN(ADDR, SP) \
ns32k_store_struct_return ((ADDR), (SP))
extern void ns32k_extract_return_value (struct type *, char *, char *);
#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
memcpy (VALBUF, REGBUF+REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 0), TYPE_LENGTH (TYPE))
/* Write into appropriate registers a function return value
of type TYPE, given in virtual format. */
ns32k_extract_return_value ((TYPE), (REGBUF), (VALBUF))
extern void ns32k_store_return_value (struct type *, char *);
#define STORE_RETURN_VALUE(TYPE,VALBUF) \
write_register_bytes (REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 0), VALBUF, TYPE_LENGTH (TYPE))
ns32k_store_return_value ((TYPE), (VALBUF))
/* 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) (*(int *)(REGBUF))
extern CORE_ADDR ns32k_extract_struct_value_address (char *);
#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
ns32k_extract_struct_value_address ((REGBUF))
/* Describe the pointer in each stack frame to the previous stack frame
(its caller). */
@ -198,8 +185,6 @@ extern int sizeof_ns32k_call_dummy_words;
#define CALL_DUMMY_START_OFFSET 3
struct value;
struct type;
extern void ns32k_fix_call_dummy (char *, CORE_ADDR, CORE_ADDR, int,
struct value **, struct type *, int);
#define FIX_CALL_DUMMY(dummy, pc, fun, nargs, args, type, gcc_p) \

38
gdb/ns32k-tdep.c
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@ -120,6 +120,17 @@ ns32k_register_virtual_type (int regno)
return (builtin_type_double);
}
/* Immediately after a function call, return the saved PC. Can't
always go through the frames for this because on some systems,
the new frame is not set up until the new function executes some
instructions. */
CORE_ADDR
ns32k_saved_pc_after_call (struct frame_info *frame)
{
return (read_memory_integer (read_register (SP_REGNUM), 4));
}
/* Advance PC across any function entry prologue instructions
to reach some "real" code. */
@ -434,6 +445,33 @@ ns32k_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs,
}
void
ns32k_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
{
/* On this machine, this is a no-op (Encore Umax didn't use GCC). */
}
void
ns32k_extract_return_value (struct type *valtype, char *regbuf, char *valbuf)
{
memcpy (valbuf,
regbuf + REGISTER_BYTE (TYPE_CODE (valtype) == TYPE_CODE_FLT ?
FP0_REGNUM : 0), TYPE_LENGTH (valtype));
}
void
ns32k_store_return_value (struct type *valtype, char *valbuf)
{
write_register_bytes (TYPE_CODE (valtype) == TYPE_CODE_FLT ?
FP0_REGNUM : 0, valbuf, TYPE_LENGTH (valtype));
}
CORE_ADDR
ns32k_extract_struct_value_address (char *regbuf)
{
return (extract_address (regbuf + REGISTER_BYTE (0), REGISTER_RAW_SIZE (0)));
}
void
_initialize_ns32k_tdep (void)
{
tm_print_insn = print_insn_ns32k;