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8099a74750
Here we add a couple of fixes and improvements for ARC processors. All except 1 patch are already in the upstream "master" branch and will be an essential part of GCC 11.x whenever it gets released. The most important are first 4 patches (0005-0008) which introduce support of full native GDB support in Linux on ARC. And the rests are tiny, yet useful improvements. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
68 lines
2.0 KiB
Diff
68 lines
2.0 KiB
Diff
From 4bbb306263d4258b279d64a6012f5817aff87e56 Mon Sep 17 00:00:00 2001
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From: Shahab Vahedi <shahab@synopsys.com>
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Date: Wed, 15 Jan 2020 00:14:24 +0100
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Subject: [PATCH 15/20] gdb: Add default reggroups for ARC
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There is no reggroups set in ARC. If a "maintenance print reggroups"
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command is issued, the default register set is dumped (which is fine).
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However, if a new group is added via an XML file, then that will
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become the _only_ group. This behavior causes gdb.xml/tdesc-regs.exp
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to fail.
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Fixes gdb.xml/tdesc-regs.exp on ARC.
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gdb/ChangeLog:
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2020-01-15 Shahab Vahedi <shahab@synopsys.com>
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* arc-tdep.c (arc_add_reggroups): New function.
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(arc_gdbarch_init): Call arc_add_reggroups.
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Will be a part of GDB 11:
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https://sourceware.org/git?p=binutils-gdb.git;a=commit;h=d0cc52bdf2e6a586cac70000518c95619970619b
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---
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gdb/arc-tdep.c | 18 ++++++++++++++++++
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1 file changed, 18 insertions(+)
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--- a/gdb/arc-tdep.c
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+++ b/gdb/arc-tdep.c
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@@ -27,6 +27,7 @@
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#include "frame-base.h"
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#include "frame-unwind.h"
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#include "gdbcore.h"
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+#include "reggroups.h"
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#include "gdbcmd.h"
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#include "objfiles.h"
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#include "osabi.h"
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@@ -1979,6 +1980,20 @@
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arc_frame_base_address
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};
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+/* Add all the expected register sets into GDBARCH. */
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+
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+static void
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+arc_add_reggroups (struct gdbarch *gdbarch)
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+{
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+ reggroup_add (gdbarch, general_reggroup);
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+ reggroup_add (gdbarch, float_reggroup);
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+ reggroup_add (gdbarch, system_reggroup);
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+ reggroup_add (gdbarch, vector_reggroup);
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+ reggroup_add (gdbarch, all_reggroup);
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+ reggroup_add (gdbarch, save_reggroup);
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+ reggroup_add (gdbarch, restore_reggroup);
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+}
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+
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static enum arc_isa
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mach_type_to_arc_isa (const unsigned long mach)
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{
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@@ -2382,6 +2397,9 @@
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/* This doesn't include possible long-immediate value. */
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set_gdbarch_max_insn_length (gdbarch, 4);
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+ /* Add default register groups. */
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+ arc_add_reggroups (gdbarch);
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+
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/* Frame unwinders and sniffers. */
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dwarf2_frame_set_init_reg (gdbarch, arc_dwarf2_frame_init_reg);
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dwarf2_append_unwinders (gdbarch);
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