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* go32-nat.c: Include i387-nat.h.

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(fetch_register): New function, uses some of the guts of
	go32_fetch_registers and i387_supply_register.
	(go32_fetch_registers): Most of the code moved into
	fetch_register.  Use i387_supply_fsave.
	(store_register): Use i387_fill_fsave instead of custom code.
	(go32_store_registers): Use i387_fill_fsave.

	* Makefile.in (go32-nat.o): Depend on i387-nat.h.

	* config/i386/go32.mh (NATDEPFILES): Add i387-nat.o.
This commit is contained in:
Eli Zaretskii
2001-02-18 07:22:17 +00:00
parent b2f9ec70af
commit 89dea5aa55
4 changed files with 40 additions and 58 deletions
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82
gdb/go32-nat.c
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@@ -28,6 +28,7 @@
#include "command.h"
#include "floatformat.h"
#include "buildsym.h"
#include "i387-nat.h"
#include <stdio.h> /* required for __DJGPP_MINOR__ */
#include <stdlib.h>
@@ -449,56 +450,28 @@ go32_wait (int pid ATTRIBUTE_UNUSED, struct target_waitstatus *status)
return SOME_PID;
}
static void
fetch_register (int regno)
{
if (regno < FP0_REGNUM)
supply_register (regno, (char *) &a_tss + regno_mapping[regno].tss_ofs);
else if (regno <= LAST_FPU_CTRL_REGNUM)
i387_supply_register (regno, (char *) &npx);
else
internal_error (__FILE__, __LINE__,
"Invalid register no. %d in fetch_register.", regno);
}
static void
go32_fetch_registers (int regno)
{
/*JHW */
int end_reg = regno + 1; /* just one reg initially */
if (regno < 0) /* do the all registers */
if (regno >= 0)
fetch_register (regno);
else
{
regno = 0; /* start at first register */
/* # regs in table */
end_reg = sizeof (regno_mapping) / sizeof (regno_mapping[0]);
}
for (; regno < end_reg; regno++)
{
if (regno < 16)
supply_register (regno,
(char *) &a_tss + regno_mapping[regno].tss_ofs);
else if (regno < 24)
supply_register (regno,
(char *) &npx.reg[regno_mapping[regno].tss_ofs]);
else if (regno < 32)
{
unsigned regval;
switch (regno_mapping[regno].size)
{
case 2:
regval = *(unsigned short *)
((char *) &npx + regno_mapping[regno].tss_ofs);
regval &= 0xffff;
if (regno == FOP_REGNUM && regval)
/* Feature: restore the 5 bits of the opcode
stripped by FSAVE/FNSAVE. */
regval |= 0xd800;
break;
case 4:
regval = *(unsigned *)
((char *) &npx + regno_mapping[regno].tss_ofs);
break;
default:
internal_error (__FILE__, __LINE__, "\
Invalid native size for register no. %d in go32_fetch_register.", regno);
}
supply_register (regno, (char *) &regval);
}
else
internal_error (__FILE__, __LINE__,
"Invalid register no. %d in go32_fetch_register.",
regno);
for (regno = 0; regno < FP0_REGNUM; regno++)
fetch_register (regno);
i387_supply_fsave ((char *) &npx);
}
}
@@ -508,18 +481,14 @@ store_register (int regno)
void *rp;
void *v = (void *) &registers[REGISTER_BYTE (regno)];
if (regno < 16)
rp = (char *) &a_tss + regno_mapping[regno].tss_ofs;
else if (regno < 24)
rp = (char *) &npx.reg[regno_mapping[regno].tss_ofs];
else if (regno < 32)
rp = (char *) &npx + regno_mapping[regno].tss_ofs;
if (regno < FP0_REGNUM)
memcpy ((char *) &a_tss + regno_mapping[regno].tss_ofs,
v, regno_mapping[regno].size);
else if (regno <= LAST_FPU_CTRL_REGNUM)
i387_fill_fsave ((char *)&npx, regno);
else
internal_error (__FILE__, __LINE__,
"Invalid register no. %d in store_register.", regno);
memcpy (rp, v, regno_mapping[regno].size);
if (regno == FOP_REGNUM)
*(short *)rp &= 0x07ff; /* strip high 5 bits, in case they added them */
}
static void
@@ -531,8 +500,9 @@ go32_store_registers (int regno)
store_register (regno);
else
{
for (r = 0; r < sizeof (regno_mapping) / sizeof (regno_mapping[0]); r++)
for (r = 0; r < FP0_REGNUM; r++)
store_register (r);
i387_fill_fsave ((char *) &npx, -1);
}
}