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authorEli Zaretskii <eliz@gnu.org>2001-02-18 07:22:17 +0000
committerEli Zaretskii <eliz@gnu.org>2001-02-18 07:22:17 +0000
commit89dea5aa55a43f4afa567c1d3a5fd7b0470abdd4 (patch)
tree9b725455a90633d1a03c40886ed1790e596026a0 /gdb/go32-nat.c
parentb2f9ec70af37917616d03dc3c5f6fa1e2aaa60a2 (diff)
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* go32-nat.c: Include i387-nat.h.
(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.
Diffstat (limited to 'gdb/go32-nat.c')
-rw-r--r--gdb/go32-nat.c82
1 files changed, 26 insertions, 56 deletions
diff --git a/gdb/go32-nat.c b/gdb/go32-nat.c
index 885662b..582ff16 100644
--- a/gdb/go32-nat.c
+++ b/gdb/go32-nat.c
@@ -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>
@@ -450,55 +451,27 @@ go32_wait (int pid ATTRIBUTE_UNUSED, struct target_waitstatus *status)
}
static void
-go32_fetch_registers (int regno)
+fetch_register (int regno)
{
- /*JHW */
- int end_reg = regno + 1; /* just one reg initially */
-
- if (regno < 0) /* do the all registers */
- {
- regno = 0; /* start at first register */
- /* # regs in table */
- end_reg = sizeof (regno_mapping) / sizeof (regno_mapping[0]);
- }
+ 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);
+}
- for (; regno < end_reg; regno++)
+static void
+go32_fetch_registers (int regno)
+{
+ if (regno >= 0)
+ fetch_register (regno);
+ else
{
- 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);
}
}