From 3877922e56a9e44fed0ca72e64cad7578e6b1ed5 Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Mon, 18 Apr 2016 14:17:18 +0100 Subject: [PATCH] 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 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. --- gdb/ChangeLog | 6 ++++++ gdb/mips-tdep.c | 6 +++++- 2 files changed, 11 insertions(+), 1 deletion(-) 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 + + * 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 * 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; } } -- 2.7.4