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Tue Jun 23 17:32:26 1998 Michael Snyder <msnyder@cleaver.cygnus.com>

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* rs6000-tdep.c (pop_dummy_frame): use memcpy.
        (push_arguments): use memset.
        (various other places): fix up indentation and long lines.
This commit is contained in:
Michael Snyder 1998-06-24 00:37:49 +00:00
parent 59b8f2097f
commit 75621b2b2c
2 changed files with 49 additions and 29 deletions
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6
gdb/ChangeLog
View file

@ -1,3 +1,9 @@
Tue Jun 23 17:32:26 1998 Michael Snyder <msnyder@cleaver.cygnus.com>
* rs6000-tdep.c (pop_dummy_frame): use memcpy.
(push_arguments): use memset.
(various other places): fix up indentation and long lines.
Tue Jun 23 11:58:35 1998 Jason Molenda (crash@bugshack.cygnus.com)
* configure.in: s/lXext/-lXext/ for Jillian's change.

72
gdb/rs6000-tdep.c
View file

@ -268,7 +268,8 @@ skip_prologue (pc, fdata)
continue;
} else if (((op & 0xfc1f0000) == 0xbc010000) || /* stm Rx, NUM(r1) */
((op & 0xfc1f0000) == 0x90010000 && /* st rx,NUM(r1), rx >= r13 */
((op & 0xfc1f0000) == 0x90010000 && /* st rx,NUM(r1),
rx >= r13 */
(op & 0x03e00000) >= 0x01a00000)) {
reg = GET_SRC_REG (op);
@ -278,43 +279,52 @@ skip_prologue (pc, fdata)
}
continue;
} else if ((op & 0xffff0000) == 0x3c000000) { /* addis 0,0,NUM, used for >= 32k frames */
} else if ((op & 0xffff0000) == 0x3c000000) { /* addis 0,0,NUM, used
for >= 32k frames */
fdata->offset = (op & 0x0000ffff) << 16;
fdata->frameless = 0;
continue;
} else if ((op & 0xffff0000) == 0x60000000) { /* ori 0,0,NUM, 2nd half of >= 32k frames */
} else if ((op & 0xffff0000) == 0x60000000) { /* ori 0,0,NUM, 2nd ha
lf of >= 32k frames */
fdata->offset |= (op & 0x0000ffff);
fdata->frameless = 0;
continue;
} else if ((op & 0xffff0000) == lr_reg) { /* st Rx,NUM(r1) where Rx == lr */
} else if ((op & 0xffff0000) == lr_reg) { /* st Rx,NUM(r1)
where Rx == lr */
fdata->lr_offset = SIGNED_SHORT (op) + offset;
fdata->nosavedpc = 0;
lr_reg = 0;
continue;
} else if ((op & 0xffff0000) == cr_reg) { /* st Rx,NUM(r1) where Rx == cr */
} else if ((op & 0xffff0000) == cr_reg) { /* st Rx,NUM(r1)
where Rx == cr */
fdata->cr_offset = SIGNED_SHORT (op) + offset;
cr_reg = 0;
continue;
} else if (op == 0x48000005) { /* bl .+4 used in -mrelocatable */
} else if (op == 0x48000005) { /* bl .+4 used in
-mrelocatable */
continue;
} else if (op == 0x48000004) { /* b .+4 (xlc) */
break;
} else if (((op & 0xffff0000) == 0x801e0000 || /* lwz 0,NUM(r30), used in V.4 -mrelocatable */
op == 0x7fc0f214) && /* add r30,r0,r30, used in V.4 -mrelocatable */
} else if (((op & 0xffff0000) == 0x801e0000 || /* lwz 0,NUM(r30), used
in V.4 -mrelocatable */
op == 0x7fc0f214) && /* add r30,r0,r30, used
in V.4 -mrelocatable */
lr_reg == 0x901e0000) {
continue;
} else if ((op & 0xffff0000) == 0x3fc00000 || /* addis 30,0,foo@ha, used in V.4 -mminimal-toc */
} else if ((op & 0xffff0000) == 0x3fc00000 || /* addis 30,0,foo@ha, used
in V.4 -mminimal-toc */
(op & 0xffff0000) == 0x3bde0000) { /* addi 30,30,foo@l */
continue;
} else if ((op & 0xfc000000) == 0x48000000) { /* bl foo, to save fprs??? */
} else if ((op & 0xfc000000) == 0x48000000) { /* bl foo,
to save fprs??? */
fdata->frameless = 0;
/* Don't skip over the subroutine call if it is not within the first
@ -330,8 +340,8 @@ skip_prologue (pc, fdata)
prologue. */
if (op == 0x4def7b82 || op == 0) /* crorc 15, 15, 15 */
break; /* don't skip over this branch */
break; /* don't skip over
this branch */
continue;
/* update stack pointer */
@ -482,7 +492,7 @@ push_dummy_frame ()
pc = read_register(PC_REGNUM);
store_address (pc_targ, 4, pc);
(void) skip_prologue (get_pc_function_start (pc) + FUNCTION_START_OFFSET, &fdata);
skip_prologue (get_pc_function_start (pc) + FUNCTION_START_OFFSET, &fdata);
dummy_frame_addr [dummy_frame_count++] = sp;
@ -522,7 +532,7 @@ push_dummy_frame ()
for (ii=1; ii <= (LAST_SP_REGNUM-FIRST_SP_REGNUM+1); ++ii) {
write_memory (sp-384-(ii*4),
&registers[REGISTER_BYTE (FPLAST_REGNUM + ii)], 4);
&registers[REGISTER_BYTE (FPLAST_REGNUM + ii)], 4);
}
/* Save sp or so called back chain right here. */
@ -583,7 +593,7 @@ pop_dummy_frame ()
order to secure astack space. Thus, saved %sp (or %r1) value, is not the
one we should restore. Change it with the one we need. */
*(int*)&registers [REGISTER_BYTE(FP_REGNUM)] = sp;
memcpy (&registers [REGISTER_BYTE(FP_REGNUM)], (char *) &sp, sizeof (int));
/* Now we can restore all registers. */
@ -757,8 +767,9 @@ push_arguments (nargs, args, sp, struct_return, struct_addr)
printf_unfiltered (
"Fatal Error: a floating point parameter #%d with a size > 8 is found!\n", argno);
memcpy (&registers[REGISTER_BYTE(FP0_REGNUM + 1 + f_argno)], VALUE_CONTENTS (arg),
len);
memcpy (&registers[REGISTER_BYTE(FP0_REGNUM + 1 + f_argno)],
VALUE_CONTENTS (arg),
len);
++f_argno;
}
@ -766,11 +777,10 @@ push_arguments (nargs, args, sp, struct_return, struct_addr)
/* Argument takes more than one register. */
while (argbytes < len) {
*(int*)&registers[REGISTER_BYTE(ii+3)] = 0;
memset (&registers[REGISTER_BYTE(ii+3)], 0, sizeof(int));
memcpy (&registers[REGISTER_BYTE(ii+3)],
((char*)VALUE_CONTENTS (arg))+argbytes,
(len - argbytes) > 4 ? 4 : len - argbytes);
((char*)VALUE_CONTENTS (arg))+argbytes,
(len - argbytes) > 4 ? 4 : len - argbytes);
++ii, argbytes += 4;
if (ii >= 8)
@ -780,7 +790,7 @@ push_arguments (nargs, args, sp, struct_return, struct_addr)
--ii;
}
else { /* Argument can fit in one register. No problem. */
*(int*)&registers[REGISTER_BYTE(ii+3)] = 0;
memset (&registers[REGISTER_BYTE(ii+3)], 0, sizeof(int));
memcpy (&registers[REGISTER_BYTE(ii+3)], VALUE_CONTENTS (arg), len);
}
++argno;
@ -827,8 +837,9 @@ ran_out_of_registers_for_arguments:
completely, push the rest of it into stack. */
if (argbytes) {
write_memory (
sp+24+(ii*4), ((char*)VALUE_CONTENTS (arg))+argbytes, len - argbytes);
write_memory (sp+24+(ii*4),
((char*)VALUE_CONTENTS (arg))+argbytes,
len - argbytes);
++argno;
ii += ((len - argbytes + 3) & -4) / 4;
}
@ -848,8 +859,9 @@ ran_out_of_registers_for_arguments:
printf_unfiltered (
"Fatal Error: a floating point parameter #%d with a size > 8 is found!\n", argno);
memcpy (&registers[REGISTER_BYTE(FP0_REGNUM + 1 + f_argno)], VALUE_CONTENTS (arg),
len);
memcpy (&registers[REGISTER_BYTE(FP0_REGNUM + 1 + f_argno)],
VALUE_CONTENTS (arg),
len);
++f_argno;
}
@ -892,8 +904,9 @@ extract_return_value (valtype, regbuf, valbuf)
necessary. */
if (TYPE_LENGTH (valtype) > 4) /* this is a double */
memcpy (valbuf, &regbuf[REGISTER_BYTE (FP0_REGNUM + 1)],
TYPE_LENGTH (valtype));
memcpy (valbuf,
&regbuf[REGISTER_BYTE (FP0_REGNUM + 1)],
TYPE_LENGTH (valtype));
else { /* float */
memcpy (&dd, &regbuf[REGISTER_BYTE (FP0_REGNUM + 1)], 8);
ff = (float)dd;
@ -906,7 +919,8 @@ extract_return_value (valtype, regbuf, valbuf)
&& TYPE_LENGTH (valtype) < REGISTER_RAW_SIZE (3))
offset = REGISTER_RAW_SIZE (3) - TYPE_LENGTH (valtype);
memcpy (valbuf, regbuf + REGISTER_BYTE (3) + offset,
memcpy (valbuf,
regbuf + REGISTER_BYTE (3) + offset,
TYPE_LENGTH (valtype));
}
}