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* configure,configure.in: Add target sparclet.

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* monitor.h,monitor.c:
    Added monitor flags MO_NO_ECHO_ON_SETMEM (don't expect echo on
    setmem command), MO_RUN_FIRST_TIME (if command to start process
    running on target is different from one to continue execution),
    MO_HEX_PREFIX (if addresses from monitor have a "0x" prefix).
    * monitor.c,parse.c,sparc-tdep.c:
    Don't require strings in the registers array.  This is to allow
    NULLs to be place holders in the tm-*.h file so that only minor
    changes are needed when a new processor is introduced (eg, one
    without floating point).
    * sparc-tdep.c: Conditionally remove dependancies on floating point.
    * sparclet-rom.c,config/sparc/sparclet.mt,config/sparc/tm-sparclet.h:
    New files for target sparclet.
    * symfile.c: Add option for 2nd parameter on load command : a load
    offset added to the vma of each section.
This commit is contained in:
Dawn Perchik 1996-06-28 14:03:13 +00:00
parent 265c044ac1
commit 012be3cec3
10 changed files with 509 additions and 91 deletions
Download patch file Download diff file Expand all files Collapse all files

143
gdb/sparc-tdep.c
View file

@ -1,5 +1,5 @@
/* Target-dependent code for the SPARC for GDB, the GNU debugger.
Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995
Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996
Free Software Foundation, Inc.
This file is part of GDB.
@ -34,9 +34,14 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "gdbcore.h"
#ifdef GDB_TARGET_IS_SPARC64
#define NUM_SPARC_FPREGS 64
#define FP_REGISTER_BYTES (64 * 4)
#else
#define NUM_SPARC_FPREGS 32
#define FP_REGISTER_BYTES (32 * 4)
#endif
/* If not defined, assume 32 bit sparc. */
#ifndef FP_MAX_REGNUM
#define FP_MAX_REGNUM (FP0_REGNUM + 32)
#endif
#define SPARC_INTREG_SIZE (REGISTER_RAW_SIZE (G0_REGNUM))
@ -607,6 +612,22 @@ get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
*optimized = 0;
addr = 0;
/* FIXME This code extracted from infcmd.c; should put elsewhere! */
if (frame == NULL)
{
/* error ("No selected frame."); */
if (!target_has_registers)
error ("The program has no registers now.");
if (selected_frame == NULL)
error ("No selected frame.");
/* Try to use selected frame */
frame = get_prev_frame (selected_frame);
if (frame == 0)
error ("Cmd not meaningful in the outermost frame.");
}
frame1 = frame->next;
while (frame1 != NULL)
{
@ -614,20 +635,36 @@ get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
read_register (SP_REGNUM))
&& frame1->pc <= FRAME_FP (frame1))
{
/* Dummy frame. All but the window regs are in there somewhere. */
/* FIXME: The offsets are wrong for sparc64 (eg: 0xa0). */
/* Dummy frame. All but the window regs are in there somewhere.
The window registers are saved on the stack, just like in a
normal frame. */
if (regnum >= G1_REGNUM && regnum < G1_REGNUM + 7)
addr = frame1->frame + (regnum - G0_REGNUM) * SPARC_INTREG_SIZE
- (NUM_SPARC_FPREGS * 4 + 8 * SPARC_INTREG_SIZE);
- (FP_REGISTER_BYTES + 8 * SPARC_INTREG_SIZE);
else if (regnum >= I0_REGNUM && regnum < I0_REGNUM + 8)
addr = frame1->frame + (regnum - I0_REGNUM) * SPARC_INTREG_SIZE
- (NUM_SPARC_FPREGS * 4 + 16 * SPARC_INTREG_SIZE);
else if (regnum >= FP0_REGNUM && regnum < FP0_REGNUM + NUM_SPARC_FPREGS)
addr = (frame1->prev->bottom
+ (regnum - I0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_I0);
else if (regnum >= L0_REGNUM && regnum < L0_REGNUM + 8)
addr = (frame1->prev->bottom
+ (regnum - L0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_L0);
else if (regnum >= O0_REGNUM && regnum < O0_REGNUM + 8)
addr = frame1->frame + (regnum - O0_REGNUM) * SPARC_INTREG_SIZE
- (FP_REGISTER_BYTES + 16 * SPARC_INTREG_SIZE);
#ifdef FP0_REGNUM
else if (regnum >= FP0_REGNUM && regnum < FP0_REGNUM + 32)
addr = frame1->frame + (regnum - FP0_REGNUM) * 4
- (NUM_SPARC_FPREGS * 4);
- (FP_REGISTER_BYTES);
#ifdef GDB_TARGET_IS_SPARC64
else if (regnum >= FP0_REGNUM + 32 && regnum < FP_MAX_REGNUM)
addr = frame1->frame + 32 * 4 + (regnum - FP0_REGNUM - 32) * 8
- (FP_REGISTER_BYTES);
#endif
#endif /* FP0_REGNUM */
else if (regnum >= Y_REGNUM && regnum < NUM_REGS)
addr = frame1->frame + (regnum - Y_REGNUM) * SPARC_INTREG_SIZE
- (NUM_SPARC_FPREGS * 4 + 24 * SPARC_INTREG_SIZE);
- (FP_REGISTER_BYTES + 24 * SPARC_INTREG_SIZE);
}
else if (frame1->flat)
{
@ -715,8 +752,13 @@ get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
#endif
/* See tm-sparc.h for how this is calculated. */
#ifdef FP0_REGNUM
#define DUMMY_STACK_REG_BUF_SIZE \
(((8+8+8) * SPARC_INTREG_SIZE) + (32 * REGISTER_RAW_SIZE (FP0_REGNUM)))
#else
#define DUMMY_STACK_REG_BUF_SIZE \
(((8+8+8) * SPARC_INTREG_SIZE) )
#endif /* FP0_REGNUM */
#define DUMMY_STACK_SIZE (DUMMY_STACK_REG_BUF_SIZE + DUMMY_REG_SAVE_OFFSET)
void
@ -743,11 +785,11 @@ sparc_push_dummy_frame ()
&register_temp[16 * SPARC_INTREG_SIZE],
SPARC_INTREG_SIZE * 8);
/* ??? The 32 here should be NUM_SPARC_FPREGS, but until we decide what
REGISTER_RAW_SIZE should be for fp regs, it's left as is. */
#ifdef FP0_REGNUM
read_register_bytes (REGISTER_BYTE (FP0_REGNUM),
&register_temp[24 * SPARC_INTREG_SIZE],
REGISTER_RAW_SIZE (FP0_REGNUM) * 32);
FP_REGISTER_BYTES);
#endif /* FP0_REGNUM */
sp -= DUMMY_STACK_SIZE;
@ -820,19 +862,27 @@ sparc_frame_find_saved_regs (fi, saved_regs_addr)
for (regnum = G1_REGNUM; regnum < G1_REGNUM+7; regnum++)
saved_regs_addr->regs[regnum] =
frame_addr + (regnum - G0_REGNUM) * SPARC_INTREG_SIZE
- (NUM_SPARC_FPREGS * 4 + 8 * SPARC_INTREG_SIZE);
- (FP_REGISTER_BYTES + 8 * SPARC_INTREG_SIZE);
for (regnum = I0_REGNUM; regnum < I0_REGNUM+8; regnum++)
saved_regs_addr->regs[regnum] =
frame_addr + (regnum - I0_REGNUM) * SPARC_INTREG_SIZE
- (NUM_SPARC_FPREGS * 4 + 16 * SPARC_INTREG_SIZE);
- (FP_REGISTER_BYTES + 16 * SPARC_INTREG_SIZE);
#ifdef FP0_REGNUM
for (regnum = FP0_REGNUM; regnum < FP0_REGNUM + 32; regnum++)
saved_regs_addr->regs[regnum] =
frame_addr + (regnum - FP0_REGNUM) * 4
- (NUM_SPARC_FPREGS * 4);
- (FP_REGISTER_BYTES);
#ifdef GDB_TARGET_IS_SPARC64
for (regnum = FP0_REGNUM + 32; regnum < FP_MAX_REGNUM; regnum++)
saved_regs_addr->regs[regnum] =
frame_addr + 32 * 4 + (regnum - FP0_REGNUM - 32) * 8
- (FP_REGISTER_BYTES);
#endif
#endif /* FP0_REGNUM */
for (regnum = Y_REGNUM; regnum < NUM_REGS; regnum++)
saved_regs_addr->regs[regnum] =
frame_addr + (regnum - Y_REGNUM) * SPARC_INTREG_SIZE - 0xe0;
- (NUM_SPARC_FPREGS * 4 + 24 * SPARC_INTREG_SIZE);
- (FP_REGISTER_BYTES + 24 * SPARC_INTREG_SIZE);
frame_addr = fi->bottom ?
fi->bottom : read_register (SP_REGNUM);
}
@ -908,11 +958,12 @@ sparc_pop_frame ()
int regnum;
sparc_frame_find_saved_regs (frame, &fsr);
#ifdef FP0_REGNUM
if (fsr.regs[FP0_REGNUM])
{
read_memory (fsr.regs[FP0_REGNUM], raw_buffer, NUM_SPARC_FPREGS * 4);
read_memory (fsr.regs[FP0_REGNUM], raw_buffer, FP_REGISTER_BYTES);
write_register_bytes (REGISTER_BYTE (FP0_REGNUM),
raw_buffer, NUM_SPARC_FPREGS * 4);
raw_buffer, FP_REGISTER_BYTES);
}
#ifndef GDB_TARGET_IS_SPARC64
if (fsr.regs[FPS_REGNUM])
@ -926,6 +977,7 @@ sparc_pop_frame ()
write_register_bytes (REGISTER_BYTE (CPS_REGNUM), raw_buffer, 4);
}
#endif
#endif /* FP0_REGNUM */
if (fsr.regs[G1_REGNUM])
{
read_memory (fsr.regs[G1_REGNUM], raw_buffer, 7 * SPARC_INTREG_SIZE);
@ -1205,7 +1257,7 @@ prfpregset_t *fpregsetp;
register int regi;
char *from;
for (regi = FP0_REGNUM ; regi < FP0_REGNUM+32 ; regi++)
for (regi = FP0_REGNUM ; regi < FP_MAX_REGNUM ; regi++)
{
from = (char *) &fpregsetp->pr_fr.pr_regs[regi-FP0_REGNUM];
supply_register (regi, from);
@ -1228,9 +1280,7 @@ int regno;
char *to;
char *from;
/* ??? The 32 should probably be NUM_SPARC_FPREGS, but again we're
waiting on what REGISTER_RAW_SIZE should be for fp regs. */
for (regi = FP0_REGNUM ; regi < FP0_REGNUM + 32 ; regi++)
for (regi = FP0_REGNUM ; regi < FP_MAX_REGNUM ; regi++)
{
if ((regno == -1) || (regno == regi))
{
@ -1360,17 +1410,50 @@ sparc_print_register_hook (regno)
{
unsigned LONGEST val;
if (((unsigned) (regno) - FP0_REGNUM < FP_MAX_REGNUM - FP0_REGNUM)
&& ((regno) & 1) == 0)
/* Handle double/quad versions of lower 32 fp regs. */
if (regno >= FP0_REGNUM && regno < FP0_REGNUM + 32
&& (regno & 1) == 0)
{
char doublereg[8]; /* two float regs */
if (!read_relative_register_raw_bytes ((regno), doublereg))
char value[16];
if (!read_relative_register_raw_bytes (regno, value)
&& !read_relative_register_raw_bytes (regno + 1, value + 4))
{
printf_unfiltered("\t");
print_floating (doublereg, builtin_type_double, gdb_stdout);
printf_unfiltered ("\t");
print_floating (value, builtin_type_double, gdb_stdout);
}
#if 0 /* FIXME: gdb doesn't handle long doubles */
if ((regno & 3) == 0)
{
if (!read_relative_register_raw_bytes (regno + 2, value + 8)
&& !read_relative_register_raw_bytes (regno + 3, value + 12))
{
printf_unfiltered ("\t");
print_floating (value, builtin_type_long_double, gdb_stdout);
}
}
#endif
return;
}
#if 0 /* FIXME: gdb doesn't handle long doubles */
/* Print upper fp regs as long double if appropriate. */
if (regno >= FP0_REGNUM + 32 && regno < FP_MAX_REGNUM
/* We test for even numbered regs and not a multiple of 4 because
the upper fp regs are recorded as doubles. */
&& (regno & 1) == 0)
{
char value[16];
if (!read_relative_register_raw_bytes (regno, value)
&& !read_relative_register_raw_bytes (regno + 1, value + 8))
{
printf_unfiltered ("\t");
print_floating (value, builtin_type_long_double, gdb_stdout);
}
return;
}
#endif
/* FIXME: Some of these are priviledged registers.
Not sure how they should be handled. */