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ba60b96371
With the AArch64 Scalable Matrix Extension we have a new TPIDR2 register, and it will be added to the existing NT_ARM_TLS register set. Kernel patches are being reviewed here: https://lore.kernel.org/linux-arm-kernel/20220818170111.351889-1-broonie@kernel.org/ From GDB's perspective, we handle it in a similar way to the existing TPIDR register. But we need to consider cases of systems that only have TPIDR and systems that have both TPIDR and TPIDR2. With that in mind, the following patch adds the required code to support TPIDR2 and turns the org.gnu.gdb.aarch64.tls feature into a dynamically-generated target description as opposed to a static target description containing only TPIDR. That means we can remove the gdb/features/aarch64-tls.xml file and replace the existing gdb/features/aarch64-tls.c auto-generated file with a new file that dynamically generates the target description containing either TPIDR alone or TPIDR and TPIDR2. In the future, when *BSD's start to support this register, they can just enable it as is being done for the AArch64 Linux target. The core file read/write code has been updated to support TPIDR2 as well. On GDBserver's side, there is a small change to the find_regno function to expose a non-throwing version of it. It always seemed strange to me how find_regno causes the whole operation to abort if it doesn't find a particular register name. The patch moves code from find_regno into find_regno_no_throw and makes find_regno call find_regno_no_throw instead. This allows us to do register name lookups to find a particular register number without risking erroring out if nothing is found. The patch also adjusts the feature detection code for aarch64-fbsd, since the infrastructure is shared amongst all aarch64 targets. I haven't added code to support TPIDR2 in aarch64-fbsd though, as I'm not sure when/if that will happen.
282 lines
8.7 KiB
Makefile
282 lines
8.7 KiB
Makefile
# Copyright (C) 2007-2022 Free Software Foundation, Inc.
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# This file is part of GDB.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This file requires GNU make!
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# This Makefile updates files in ../regformats from their XML master
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# copies. Because this relies on xsltproc, it is not normally run
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# during the build process; it should be run by hand when one of the
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# affected XML files is changed, and the results should be kept in the
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# GDB repository.
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# It can also update the C files in the features directory from their
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# XML master copies. This relies on a GDB linked with expat and that
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# is configured to include support for the architecture, so the files
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# are kept in the GDB repository.
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#
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# By default we'll generate all C files, and you must point make at a
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# GDB that has been configured with --enable-targets=all:
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#
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# make GDB=/path/to/gdb cfiles
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#
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# To regenerate all C files from scratch:
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#
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# make GDB=/path/to/gdb clean-cfiles cfiles
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#
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# To generate specific C files, you can override the XMLTOC and
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# FEATURE_XMLFILES make variables:
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#
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# make GDB=/path/to/gdb XMLTOC="xml files" FEATURE_XMLFILES="xml files" cfiles
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# List of .dat files to create in ../regformats/
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WHICH = mips-linux mips-dsp-linux \
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mips64-linux mips64-dsp-linux \
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nios2-linux \
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or1k-linux \
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rs6000/powerpc-32 \
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rs6000/powerpc-32l rs6000/powerpc-altivec32l rs6000/powerpc-e500l \
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rs6000/powerpc-64l rs6000/powerpc-altivec64l rs6000/powerpc-vsx32l \
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rs6000/powerpc-vsx64l \
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rs6000/powerpc-isa205-32l rs6000/powerpc-isa205-64l \
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rs6000/powerpc-isa205-altivec32l rs6000/powerpc-isa205-altivec64l \
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rs6000/powerpc-isa205-vsx32l rs6000/powerpc-isa205-vsx64l \
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rs6000/powerpc-isa205-ppr-dscr-vsx32l \
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rs6000/powerpc-isa205-ppr-dscr-vsx64l \
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rs6000/powerpc-isa207-vsx32l rs6000/powerpc-isa207-vsx64l \
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rs6000/powerpc-isa207-htm-vsx32l \
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rs6000/powerpc-isa207-htm-vsx64l \
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s390-linux32 s390-linux64 s390x-linux64 \
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s390-linux32v1 s390-linux64v1 s390x-linux64v1 \
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s390-linux32v2 s390-linux64v2 s390x-linux64v2 \
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s390-te-linux64 s390x-te-linux64 s390-vx-linux64 s390x-vx-linux64 \
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s390-tevx-linux64 s390x-tevx-linux64 \
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s390-gs-linux64 s390x-gs-linux64 \
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tic6x-c64xp-linux tic6x-c64x-linux tic6x-c62x-linux
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# Record which registers should be sent to GDB by default after stop.
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mips-expedite = r29,pc
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mips-dsp-expedite = r29,pc
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mips64-expedite = r29,pc
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mips64-dsp-expedite = r29,pc
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nios2-linux-expedite = sp,pc
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or1k-expedite = r1,npc
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powerpc-expedite = r1,pc
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s390-linux32-expedite = r14,r15,pswa
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s390-linux32v1-expedite = r14,r15,pswa
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s390-linux32v2-expedite = r14,r15,pswa
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s390-linux64-expedite = r14l,r15l,pswa
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s390-linux64v1-expedite = r14l,r15l,pswa
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s390-linux64v2-expedite = r14l,r15l,pswa
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s390-te-linux64-expedite = r14l,r15l,pswa
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s390-vx-linux64-expedite = r14l,r15l,pswa
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s390-tevx-linux64-expedite = r14l,r15l,pswa
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s390-gs-linux64-expedite = r14,r15,pswa
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s390x-expedite = r14,r15,pswa
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tic6x-expedite = A15,PC
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XSLTPROC = xsltproc
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outdir = ../regformats
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OUTPUTS = $(patsubst %,$(outdir)/%.dat,$(WHICH))
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# For targets without feature based target descriptions,
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# the set of xml files we'll generate .c files for GDB from. By
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# default we'll build all .c files, which requires an
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# --enable-targets=all GDB. You can override this by passing XMLTOC
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# to make on the command line.
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XMLTOC = \
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microblaze-with-stack-protect.xml \
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microblaze.xml \
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mips-dsp-linux.xml \
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mips-linux.xml \
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mips64-dsp-linux.xml \
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mips64-linux.xml \
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nds32.xml \
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nios2.xml \
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or1k.xml \
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or1k-linux.xml \
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rs6000/powerpc-32.xml \
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rs6000/powerpc-32l.xml \
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rs6000/powerpc-403.xml \
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rs6000/powerpc-403gc.xml \
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rs6000/powerpc-405.xml \
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rs6000/powerpc-505.xml \
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rs6000/powerpc-601.xml \
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rs6000/powerpc-602.xml \
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rs6000/powerpc-603.xml \
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rs6000/powerpc-604.xml \
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rs6000/powerpc-64.xml \
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rs6000/powerpc-64l.xml \
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rs6000/powerpc-7400.xml \
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rs6000/powerpc-750.xml \
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rs6000/powerpc-860.xml \
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rs6000/powerpc-altivec32.xml \
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rs6000/powerpc-altivec32l.xml \
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rs6000/powerpc-altivec64.xml \
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rs6000/powerpc-altivec64l.xml \
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rs6000/powerpc-e500.xml \
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rs6000/powerpc-e500l.xml \
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rs6000/powerpc-isa205-32l.xml \
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rs6000/powerpc-isa205-64l.xml \
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rs6000/powerpc-isa205-altivec32l.xml \
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rs6000/powerpc-isa205-altivec64l.xml \
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rs6000/powerpc-isa205-vsx32l.xml \
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rs6000/powerpc-isa205-vsx64l.xml \
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rs6000/powerpc-isa205-ppr-dscr-vsx32l.xml \
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rs6000/powerpc-isa205-ppr-dscr-vsx64l.xml \
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rs6000/powerpc-isa207-vsx32l.xml \
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rs6000/powerpc-isa207-vsx64l.xml \
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rs6000/powerpc-isa207-htm-vsx32l.xml \
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rs6000/powerpc-isa207-htm-vsx64l.xml \
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rs6000/powerpc-vsx32.xml \
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rs6000/powerpc-vsx32l.xml \
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rs6000/powerpc-vsx64.xml \
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rs6000/powerpc-vsx64l.xml \
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rs6000/rs6000.xml \
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rx.xml \
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s390-linux32.xml \
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s390-linux32v1.xml \
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s390-linux32v2.xml \
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s390-linux64.xml \
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s390-linux64v1.xml \
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s390-linux64v2.xml \
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s390-te-linux64.xml \
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s390x-linux64.xml \
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s390x-linux64v1.xml \
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s390x-linux64v2.xml \
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s390x-te-linux64.xml \
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s390-tevx-linux64.xml \
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s390-vx-linux64.xml \
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s390x-tevx-linux64.xml \
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s390x-vx-linux64.xml \
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s390-gs-linux64.xml \
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s390x-gs-linux64.xml \
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sparc/sparc32-solaris.xml \
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sparc/sparc64-solaris.xml \
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z80.xml
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TDESC_CFILES = $(patsubst %.xml,%.c,$(XMLTOC))
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GDB = false
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#Targets which use feature based target descriptions.
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aarch64-feature = 1
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arm-feature = 1
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i386-feature = 1
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loongarch-feature = 1
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riscv-feature = 1
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tic6x-feature = 1
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all: $(OUTPUTS)
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$(outdir)/%.dat: %.xml number-regs.xsl sort-regs.xsl gdbserver-regs.xsl
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echo "# THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi :set ro:" > $(outdir)/$*.tmp
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echo "# Generated from: $<" >> $(outdir)/$*.tmp
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echo "name:`echo $(notdir $*) | sed 's/-/_/g'`" >> $(outdir)/$*.tmp
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$(if $($(firstword $(subst /, ,$(subst -, ,$*)))-feature), echo "feature:1") >> $(outdir)/$*.tmp
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echo "xmltarget:$(<F)" >> $(outdir)/$*.tmp
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echo "expedite:$(if $($*-expedite),$($*-expedite),$($(firstword $(subst -, ,$(notdir $*)))-expedite))" \
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>> $(outdir)/$*.tmp
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$(XSLTPROC) --path "$(PWD)" --xinclude number-regs.xsl $< | \
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$(XSLTPROC) sort-regs.xsl - | \
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$(XSLTPROC) gdbserver-regs.xsl - >> $(outdir)/$*.tmp
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sh ../../move-if-change $(outdir)/$*.tmp $(outdir)/$*.dat
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# For targets with feature based target descriptions,
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# the set of xml files we'll generate .c files for GDB from.
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FEATURE_XMLFILES = aarch64-core.xml \
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aarch64-fpu.xml \
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aarch64-pauth.xml \
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aarch64-mte.xml \
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arc/v1-core.xml \
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arc/v1-aux.xml \
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arc/v2-core.xml \
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arc/v2-aux.xml \
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arm/arm-core.xml \
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arm/arm-fpa.xml \
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arm/arm-m-profile.xml \
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arm/arm-m-profile-mve.xml \
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arm/arm-m-system.xml \
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arm/arm-m-profile-with-fpa.xml \
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arm/arm-secext.xml \
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arm/arm-tls.xml \
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arm/arm-vfpv2.xml \
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arm/arm-vfpv3.xml \
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arm/xscale-iwmmxt.xml \
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cskyv2-linux.xml \
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i386/32bit-core.xml \
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i386/32bit-sse.xml \
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i386/32bit-linux.xml \
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i386/32bit-avx.xml \
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i386/32bit-mpx.xml \
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i386/32bit-avx512.xml \
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i386/32bit-segments.xml \
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i386/64bit-avx512.xml \
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i386/64bit-core.xml \
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i386/64bit-mpx.xml \
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i386/64bit-segments.xml \
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i386/64bit-avx.xml \
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i386/64bit-linux.xml \
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i386/64bit-sse.xml \
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i386/pkeys.xml \
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i386/x32-core.xml \
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loongarch/base32.xml \
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loongarch/base64.xml \
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loongarch/fpu.xml \
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riscv/rv32e-xregs.xml \
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riscv/32bit-cpu.xml \
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riscv/32bit-fpu.xml \
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riscv/64bit-cpu.xml \
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riscv/64bit-fpu.xml \
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tic6x-c6xp.xml \
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tic6x-core.xml \
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tic6x-gp.xml
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FEATURE_CFILES = $(patsubst %.xml,%.c,$(FEATURE_XMLFILES))
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cfiles: $(TDESC_CFILES) $(FEATURE_CFILES)
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$(TDESC_CFILES): %.c: %.xml
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$(GDB) -nx -q -batch -ex 'maint print c-tdesc $<' > $@.tmp
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sh ../../move-if-change $@.tmp $@
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$(FEATURE_CFILES): %.c: %.xml.tmp
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$(GDB) -nx -q -batch \
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-ex 'maint print c-tdesc -single-feature $<' > $@.tmp
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sh ../../move-if-change $@.tmp $@
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rm $<
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# %.xml is the XML file for each target description feature, and
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# %.xml.tmp is the XML file target description which only includes
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# one target description feature.
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%.xml.tmp: %.xml
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echo "<?xml version=\"1.0\"?>" > $@.tmp
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echo "<!DOCTYPE target SYSTEM \"gdb-target.dtd\">" >> $@.tmp
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echo "<target>" >> $@.tmp
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echo " <xi:include href=\"$(notdir $<)\"/>" >> $@.tmp
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echo "</target>" >> $@.tmp
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sh ../../move-if-change $@.tmp $@
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# 'all' doesn't build the C files, so don't delete them in 'clean'
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# either.
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clean-cfiles:
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rm -f $(TDESC_CFILES) $(FEATURE_CFILES)
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clean:
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rm -f $(OUTPUTS)
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