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authorMaciej W. Rozycki <macro@imgtec.com>2016-04-18 14:17:18 +0100
committerMaciej W. Rozycki <macro@imgtec.com>2016-04-22 01:20:59 +0100
commit3877922e56a9e44fed0ca72e64cad7578e6b1ed5 (patch)
tree5c91b103c4619537c79f1f8ddd09fa7bb35ef655
parentcdf5d16da56a0f0ca179467f93e8a99050b30ec4 (diff)
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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 1faeff088bbbd037d7769d214378b4faf805fa2e 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.
-rw-r--r--gdb/ChangeLog6
-rw-r--r--gdb/mips-tdep.c6
2 files changed, 11 insertions, 1 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index b6282e6..d46984f 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -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.
diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index c2bf0c0..6098f71 100644
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -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;
}
}