From: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Date: Thu, 4 May 2023 15:37:33 +0000 (-0300)
Subject: Hexagon: add core gdbstub xml data for LLDB
X-Git-Tag: v8.1.0-rc0~115^2~3
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ab930e80097c8b3472717363435cee8363e55152;p=thirdparty%2Fqemu.git

Hexagon: add core gdbstub xml data for LLDB

Signed-off-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <d25a3a79334d81f0e1ecfb438b6ee82585d02dc4.1683214375.git.quic_mathbern@quicinc.com>
---

diff --git a/MAINTAINERS b/MAINTAINERS
index f757369373f..2e18c3cad49 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -225,6 +225,7 @@ F: tests/tcg/hexagon/
 F: disas/hexagon.c
 F: configs/targets/hexagon-linux-user/default.mak
 F: docker/dockerfiles/debian-hexagon-cross.docker
+F: gdb-xml/hexagon*.xml
 
 Hexagon idef-parser
 M: Alessandro Di Federico <ale@rev.ng>
diff --git a/configs/targets/hexagon-linux-user.mak b/configs/targets/hexagon-linux-user.mak
index 003ed0a408a..fd5e222d4ff 100644
--- a/configs/targets/hexagon-linux-user.mak
+++ b/configs/targets/hexagon-linux-user.mak
@@ -1 +1,2 @@
 TARGET_ARCH=hexagon
+TARGET_XML_FILES=gdb-xml/hexagon-core.xml
diff --git a/gdb-xml/hexagon-core.xml b/gdb-xml/hexagon-core.xml
new file mode 100644
index 00000000000..e181163cff0
--- /dev/null
+++ b/gdb-xml/hexagon-core.xml
@@ -0,0 +1,84 @@
+<?xml version="1.0"?>
+<!--
+  Copyright(c) 2023 Qualcomm Innovation Center, Inc. All Rights Reserved.
+
+  This work is licensed under the terms of the GNU GPL, version 2 or
+  (at your option) any later version. See the COPYING file in the
+  top-level directory.
+
+  Note: this file is intended to be use with LLDB, so it contains fields
+  that may be unknown to GDB. For more information on such fields, please
+  see:
+  https://github.com/llvm/llvm-project/blob/287aa6c4536408413b860e61fca0318a27214cf3/lldb/docs/lldb-gdb-remote.txt#L738-L860
+  https://github.com/llvm/llvm-project/blob/287aa6c4536408413b860e61fca0318a27214cf3/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp#L4275-L4335
+-->
+
+<!DOCTYPE feature SYSTEM "gdb-target.dtd">
+<feature name="org.gnu.gdb.hexagon.core">
+
+  <reg name="r00" altname="r0" bitsize="32" offset="0"   encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="0" generic="r00"/>
+  <reg name="r01" altname="r1" bitsize="32" offset="4"   encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="1" generic="r01"/>
+  <reg name="r02" altname="r2" bitsize="32" offset="8"   encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="2" generic="r02"/>
+  <reg name="r03" altname="r3" bitsize="32" offset="12"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="3" generic="r03"/>
+  <reg name="r04" altname="r4" bitsize="32" offset="16"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="4" generic="r04"/>
+  <reg name="r05" altname="r5" bitsize="32" offset="20"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="5" generic="r05"/>
+  <reg name="r06" altname="r6" bitsize="32" offset="24"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="6" generic="r06"/>
+  <reg name="r07" altname="r7" bitsize="32" offset="28"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="7" generic="r07"/>
+  <reg name="r08" altname="r8" bitsize="32" offset="32"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="8" generic="r08"/>
+  <reg name="r09" altname="r9" bitsize="32" offset="36"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="9" generic="r09"/>
+  <reg name="r10"              bitsize="32" offset="40"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="10"/>
+  <reg name="r11"              bitsize="32" offset="44"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="11"/>
+  <reg name="r12"              bitsize="32" offset="48"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="12"/>
+  <reg name="r13"              bitsize="32" offset="52"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="13"/>
+  <reg name="r14"              bitsize="32" offset="56"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="14"/>
+  <reg name="r15"              bitsize="32" offset="60"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="15"/>
+  <reg name="r16"              bitsize="32" offset="64"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="16"/>
+  <reg name="r17"              bitsize="32" offset="68"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="17"/>
+  <reg name="r18"              bitsize="32" offset="72"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="18"/>
+  <reg name="r19"              bitsize="32" offset="76"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="19"/>
+  <reg name="r20"              bitsize="32" offset="80"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="20"/>
+  <reg name="r21"              bitsize="32" offset="84"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="21"/>
+  <reg name="r22"              bitsize="32" offset="88"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="22"/>
+  <reg name="r23"              bitsize="32" offset="92"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="23"/>
+  <reg name="r24"              bitsize="32" offset="96"  encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="24"/>
+  <reg name="r25"              bitsize="32" offset="100" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="25"/>
+  <reg name="r26"              bitsize="32" offset="104" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="26"/>
+  <reg name="r27"              bitsize="32" offset="108" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="27"/>
+  <reg name="r28"              bitsize="32" offset="112" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="28"/>
+  <reg name="r29" altname="sp" bitsize="32" offset="116" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="29" generic="sp"/>
+  <reg name="r30" altname="fp" bitsize="32" offset="120" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="30" generic="fp"/>
+  <reg name="r31" altname="ra" bitsize="32" offset="124" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="31" generic="ra"/>
+  <reg name="sa0"              bitsize="32" offset="128" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="32"/>
+  <reg name="lc0"              bitsize="32" offset="132" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="33"/>
+  <reg name="sa1"              bitsize="32" offset="136" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="34"/>
+  <reg name="lc1"              bitsize="32" offset="140" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="35"/>
+  <reg name="p3_0"             bitsize="32" offset="144" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="36"/>
+  <reg name="c5"               bitsize="32" offset="148" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="37"/>
+  <reg name="m0"               bitsize="32" offset="152" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="38"/>
+  <reg name="m1"               bitsize="32" offset="156" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="39"/>
+  <reg name="usr"              bitsize="32" offset="160" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="40"/>
+  <reg name="pc"               bitsize="32" offset="164" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="41" generic="pc"/>
+  <reg name="ugp"              bitsize="32" offset="168" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="42"/>
+  <reg name="gp"               bitsize="32" offset="172" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="43"/>
+  <reg name="cs0"              bitsize="32" offset="176" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="44"/>
+  <reg name="cs1"              bitsize="32" offset="180" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="45"/>
+  <reg name="upcyclelo"        bitsize="32" offset="184" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="46"/>
+  <reg name="upcyclehi"        bitsize="32" offset="188" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="47"/>
+  <reg name="framelimit"       bitsize="32" offset="192" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="48"/>
+  <reg name="framekey"         bitsize="32" offset="196" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="49"/>
+  <reg name="pktcountlo"       bitsize="32" offset="200" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="50"/>
+  <reg name="pktcounthi"       bitsize="32" offset="204" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="51"/>
+  <reg name="pkt_cnt"          bitsize="32" offset="208" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="52"/>
+  <reg name="insn_cnt"         bitsize="32" offset="212" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="53"/>
+  <reg name="hvx_cnt"          bitsize="32" offset="216" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="54"/>
+  <reg name="c23"              bitsize="32" offset="220" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="55"/>
+  <reg name="c24"              bitsize="32" offset="224" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="56"/>
+  <reg name="c25"              bitsize="32" offset="228" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="57"/>
+  <reg name="c26"              bitsize="32" offset="232" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="58"/>
+  <reg name="c27"              bitsize="32" offset="236" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="59"/>
+  <reg name="c28"              bitsize="32" offset="240" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="60"/>
+  <reg name="c29"              bitsize="32" offset="244" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="61"/>
+  <reg name="utimerlo"         bitsize="32" offset="248" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="62"/>
+  <reg name="utimerhi"         bitsize="32" offset="252" encoding="uint" format="hex" group="Thread Registers" dwarf_regnum="63"/>
+
+</feature>
diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c
index 7e127059c70..575bcc190d7 100644
--- a/target/hexagon/cpu.c
+++ b/target/hexagon/cpu.c
@@ -383,8 +383,9 @@ static void hexagon_cpu_class_init(ObjectClass *c, void *data)
     cc->get_pc = hexagon_cpu_get_pc;
     cc->gdb_read_register = hexagon_gdb_read_register;
     cc->gdb_write_register = hexagon_gdb_write_register;
-    cc->gdb_num_core_regs = TOTAL_PER_THREAD_REGS + NUM_VREGS + NUM_QREGS;
+    cc->gdb_num_core_regs = TOTAL_PER_THREAD_REGS;
     cc->gdb_stop_before_watchpoint = true;
+    cc->gdb_core_xml_file = "hexagon-core.xml";
     cc->disas_set_info = hexagon_cpu_disas_set_info;
     cc->tcg_ops = &hexagon_tcg_ops;
 }