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* m88k-nat.c (store_inferior_registers): When writing all registers,

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don't try to write EXIP_REGNUM or ENIP_REGNUM (not needed for this
	case, and they cause trouble).
This commit is contained in:
Jim Kingdon 1993-10-02 21:07:50 +00:00
parent e05fe481fa
commit 422a19551f
2 changed files with 53 additions and 47 deletions
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4
gdb/ChangeLog
View File

@ -1,5 +1,9 @@
Sat Oct 2 15:50:41 1993 Jim Kingdon (kingdon@lioth.cygnus.com)
* m88k-nat.c (store_inferior_registers): When writing all registers,
don't try to write EXIP_REGNUM or ENIP_REGNUM (not needed for this
case, and they cause trouble).
* TODO: Don't suggest doing fast watchpoints by stepping a line
at a time. That would be really hairy and still not fast enough.
Do suggest debug registers and page table diddling.

96
gdb/m88k-nat.c
View File

@ -114,60 +114,62 @@ store_inferior_registers (regno)
struct USER u;
unsigned int offset = (char *) &u.pt_r0 - (char *) &u;
regaddr = offset;
/* Don't try to deal with EXIP_REGNUM or ENIP_REGNUM, because I think either
svr3 doesn't run on an 88110, or the kernel isolates the different (not
completely sure this is true, but seems to be. */
if (regno >= 0)
{
/* regaddr = register_addr (regno, offset); */
if (regno < PC_REGNUM)
{
regaddr = offset + regno * sizeof (int);
errno = 0;
ptrace (6, inferior_pid,
(PTRACE_ARG3_TYPE) regaddr, read_register (regno));
if (errno != 0)
{
sprintf (buf, "writing register number %d", regno);
perror_with_name (buf);
}
}
else if (regno == SXIP_REGNUM)
ptrace (6, inferior_pid,
(PTRACE_ARG3_TYPE) SXIP_OFFSET, read_register(regno));
else if (regno == SNIP_REGNUM)
ptrace (6, inferior_pid,
(PTRACE_ARG3_TYPE) SNIP_OFFSET, read_register(regno));
else if (regno == SFIP_REGNUM)
ptrace (6, inferior_pid,
(PTRACE_ARG3_TYPE) SFIP_OFFSET, read_register(regno));
else printf ("Bad register number for store_inferior routine\n");
}
else {
for (regno = 0; regno < NUM_REGS - 3; regno++)
{
/* regaddr = register_addr (regno, offset); */
errno = 0;
regaddr = offset + regno * sizeof (int);
ptrace (6, inferior_pid,
(PTRACE_ARG3_TYPE) regaddr, read_register (regno));
if (errno != 0)
{
sprintf (buf, "writing register number %d", regno);
perror_with_name (buf);
}
}
ptrace (6,inferior_pid,
(PTRACE_ARG3_TYPE) SXIP_OFFSET,read_register(SXIP_REGNUM));
ptrace (6,inferior_pid,
(PTRACE_ARG3_TYPE) SNIP_OFFSET,read_register(SNIP_REGNUM));
ptrace (6,inferior_pid,
(PTRACE_ARG3_TYPE) SFIP_OFFSET,read_register(SFIP_REGNUM));
}
if (regno < PC_REGNUM)
{
regaddr = offset + regno * sizeof (int);
errno = 0;
ptrace (6, inferior_pid,
(PTRACE_ARG3_TYPE) regaddr, read_register (regno));
if (errno != 0)
{
sprintf (buf, "writing register number %d", regno);
perror_with_name (buf);
}
}
else if (regno == SXIP_REGNUM)
ptrace (6, inferior_pid,
(PTRACE_ARG3_TYPE) SXIP_OFFSET, read_register(regno));
else if (regno == SNIP_REGNUM)
ptrace (6, inferior_pid,
(PTRACE_ARG3_TYPE) SNIP_OFFSET, read_register(regno));
else if (regno == SFIP_REGNUM)
ptrace (6, inferior_pid,
(PTRACE_ARG3_TYPE) SFIP_OFFSET, read_register(regno));
else
printf ("Bad register number for store_inferior routine\n");
}
else
{
for (regno = 0; regno < PC_REGNUM; regno++)
{
/* regaddr = register_addr (regno, offset); */
errno = 0;
regaddr = offset + regno * sizeof (int);
ptrace (6, inferior_pid,
(PTRACE_ARG3_TYPE) regaddr, read_register (regno));
if (errno != 0)
{
sprintf (buf, "writing register number %d", regno);
perror_with_name (buf);
}
}
ptrace (6,inferior_pid,
(PTRACE_ARG3_TYPE) SXIP_OFFSET,read_register(SXIP_REGNUM));
ptrace (6,inferior_pid,
(PTRACE_ARG3_TYPE) SNIP_OFFSET,read_register(SNIP_REGNUM));
ptrace (6,inferior_pid,
(PTRACE_ARG3_TYPE) SFIP_OFFSET,read_register(SFIP_REGNUM));
}
}