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* config/d10v/tm-d10v.h (CALL_DUMMY): Define as "{ 0 }".

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(TARGET_READ_FP): Define to d10v_read_fp rather than d10v_read_sp.
	(TARGET_WRITE_FP): Define to d10v_write_fp rather than d10v_write_sp.
	(d10v_write_fp, d10v_read_fp): Add prototypes.
	* symtab.c (decode_line_1): Remove assignment of sals[0].pc field.
	* symfile.c (simple_overlay_update, simple_overlay_update_1):
	Ignore the size of overlay sections.  This check is redundant anyway.
	* printcmd.c (print_frame_args): Ditto.
	* valops.c (value_fetch_lazy): Ditto.
	* values.c (unpack_long): Ditto.
	* d10v-tdep.c (d10v_frame_chain, d10v_frame_find_saved_regs,
	d10v_init_extra_frame_info): Fix some minor bugs so the finish command
 	works properly.
	(show_regs): Change num1 and num2 types from "long long" to "LONGEST".
	(d10v_read_fp, d10v_write_fp): New functions.
	(d10v_push_arguments): Remove unneeded assigns to "val" and "contents".
	(d10v_push_arguments): Fix for pointers and structs.
	(d10v_extract_return_value): Fix for pointers and chars.
This commit is contained in:
Fred Fish
1998-01-23 15:44:12 +00:00
parent b7c05d37e2
commit 77636dea0a
8 changed files with 217 additions and 69 deletions
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67
gdb/d10v-tdep.c
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@@ -199,7 +199,7 @@ d10v_frame_chain (frame)
d10v_frame_find_saved_regs (frame, &fsr);
if (frame->return_pc == IMEM_START)
if (frame->return_pc == IMEM_START || inside_entry_file(frame->return_pc))
return (CORE_ADDR)0;
if (!fsr.regs[FP_REGNUM])
@@ -369,9 +369,9 @@ d10v_frame_find_saved_regs (fi, fsr)
}
if (fsr->regs[LR_REGNUM])
fi->return_pc = ((read_memory_unsigned_integer(fsr->regs[LR_REGNUM],2) - 1) << 2) | IMEM_START;
fi->return_pc = (read_memory_unsigned_integer(fsr->regs[LR_REGNUM],2) << 2) | IMEM_START;
else
fi->return_pc = ((read_register(LR_REGNUM) - 1) << 2) | IMEM_START;
fi->return_pc = (read_register(LR_REGNUM) << 2) | IMEM_START;
/* th SP is not normally (ever?) saved, but check anyway */
if (!fsr->regs[SP_REGNUM])
@@ -395,10 +395,6 @@ d10v_init_extra_frame_info (fromleaf, fi)
struct frame_info *fi;
{
struct frame_saved_regs dummy;
if (fi->next && ((fi->pc & 0xffff) == 0))
fi->pc = fi->next->return_pc;
d10v_frame_find_saved_regs (fi, &dummy);
}
@@ -407,7 +403,7 @@ show_regs (args, from_tty)
char *args;
int from_tty;
{
long long num1, num2;
LONGEST num1, num2;
printf_filtered ("PC=%04x (0x%x) PSW=%04x RPT_S=%04x RPT_E=%04x RPT_C=%04x\n",
read_register (PC_REGNUM), (read_register (PC_REGNUM) << 2) + IMEM_START,
read_register (PSW_REGNUM),
@@ -497,6 +493,19 @@ d10v_write_sp (val)
write_register (SP_REGNUM, (LONGEST)(val & 0xffff));
}
void
d10v_write_fp (val)
CORE_ADDR val;
{
write_register (FP_REGNUM, (LONGEST)(val & 0xffff));
}
CORE_ADDR
d10v_read_fp ()
{
return (read_register(FP_REGNUM) | DMEM_START);
}
CORE_ADDR
d10v_fix_call_dummy (dummyname, start_sp, fun, nargs, args, type, gcc_p)
char *dummyname;
@@ -563,7 +572,6 @@ d10v_push_arguments (nargs, args, sp, struct_return, struct_addr)
struct type *arg_type = check_typedef (VALUE_TYPE (arg));
len = TYPE_LENGTH (arg_type);
contents = VALUE_CONTENTS(arg);
val = extract_signed_integer (contents, len);
if (len > 4)
{
/* put on stack and pass pointers */
@@ -580,8 +588,6 @@ d10v_push_arguments (nargs, args, sp, struct_return, struct_addr)
value_ptr arg = args[i];
struct type *arg_type = check_typedef (VALUE_TYPE (arg));
len = TYPE_LENGTH (arg_type);
contents = VALUE_CONTENTS(arg);
val = extract_signed_integer (contents, len);
if (len > 4)
{
/* use a pointer to previously saved data */
@@ -597,6 +603,25 @@ d10v_push_arguments (nargs, args, sp, struct_return, struct_addr)
}
else
{
contents = VALUE_CONTENTS(arg);
val = extract_signed_integer (contents, len);
/* printf("push: type=%d len=%d val=0x%x\n",arg_type->code,len,val); */
if (arg_type->code == TYPE_CODE_PTR)
{
if ( (val & 0x3000000) == 0x1000000)
{
/* function pointer */
val = (val & 0x3FFFF) >> 2;
len = 2;
}
else
{
/* data pointer */
val &= 0xFFFF;
len = 2;
}
}
if (regnum < 6 )
{
if (len == 4)
@@ -649,7 +674,25 @@ d10v_extract_return_value (valtype, regbuf, valbuf)
char regbuf[REGISTER_BYTES];
char *valbuf;
{
memcpy (valbuf, regbuf + REGISTER_BYTE (2), TYPE_LENGTH (valtype));
int len;
/* printf("RET: VALTYPE=%d len=%d r2=0x%x\n",valtype->code, TYPE_LENGTH (valtype), (int)*(short *)(regbuf+REGISTER_BYTE(2))); */
if (valtype->code == TYPE_CODE_PTR)
{
short snum;
snum = (short)extract_address (regbuf + REGISTER_BYTE (2), 2);
store_address ( valbuf, 4, D10V_MAKE_DADDR(snum));
}
else
{
len = TYPE_LENGTH (valtype);
if (len == 1)
{
unsigned short c = extract_unsigned_integer (regbuf + REGISTER_BYTE (2), 2);
store_unsigned_integer (valbuf, 1, c);
}
else
memcpy (valbuf, regbuf + REGISTER_BYTE (2), len);
}
}
/* The following code implements access to, and display of, the D10V's