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MIPS: Go back with the default Linux # of registers to 90 

Set the number of registers for non-XML-described Linux targets to 90,
reverting a change made here with the addition of DSP register support:

commit 1faeff088b
Author: Maciej W. Rozycki <macro@linux-mips.org>
Date:   Thu Mar 1 22:19:48 2012 +0000

and fixing a regression introduced for legacy `gdbserver' targets
causing a "Remote 'g' packet reply is too long" error message where the
amount of register data received with a `g' packet (90) exceeds the
maximum number of registers expected (79).

Update the setting for XML-described targets, reflecting the actual
number of registers which have been assigned numbers, matching the:

      gdb_assert (gdbarch_num_regs (gdbarch) <= MIPS_RESTART_REGNUM);

requirement in `mips_linux_init_abi'.

	gdb/
	* mips-tdep.c (mips_gdbarch_init): For GDB_OSABI_LINUX set
	`num_regs' to 90 rather than 79.  Where a target description is
	present adjust the setting appropriately.
This commit is contained in:
Maciej W. Rozycki 2016-04-18 14:17:18 +01:00
parent cdf5d16da5
commit 3877922e56
2 changed files with 11 additions and 1 deletions
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6
gdb/ChangeLog
View File

@ -1,3 +1,9 @@
2016-04-22 Maciej W. Rozycki <macro@imgtec.com>
* mips-tdep.c (mips_gdbarch_init): For GDB_OSABI_LINUX set
`num_regs' to 90 rather than 79. Where a target description is
present adjust the setting appropriately.
2016-04-21 Pedro Alves <palves@redhat.com>
* common/common-exceptions.h (GDB_XCPT_TRY): Add comment.

6
gdb/mips-tdep.c
View File

@ -8192,7 +8192,7 @@ mips_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
mips_regnum.dspctl = -1;
dspacc = 72;
dspctl = 78;
num_regs = 79;
num_regs = 90;
reg_names = mips_linux_reg_names;
}
else
@ -8311,6 +8311,8 @@ mips_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
return NULL;
}
num_regs = mips_regnum.fp_implementation_revision + 1;
if (dspacc >= 0)
{
feature = tdesc_find_feature (info.target_desc,
@ -8344,6 +8346,8 @@ mips_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
mips_regnum.dspacc = dspacc;
mips_regnum.dspctl = dspctl;
num_regs = mips_regnum.dspctl + 1;
}
}