f2cf6173f3
This patch adds support for the Target Address Register for powerpc linux native and core file targets, and in the powerpc linux server stub. gdb/ChangeLog: 2018-10-26 Edjunior Barbosa Machado <emachado@linux.vnet.ibm.com> Pedro Franco de Carvalho <pedromfc@linux.ibm.com> * arch/ppc-linux-tdesc.h (tdesc_powerpc_isa207_vsx32l) (tdesc_powerpc_isa207_vsx64l): Declare. * arch/ppc-linux-common.h (PPC_LINUX_SIZEOF_TARREGSET): Define. (struct ppc_linux_features) <isa207>: New field. (ppc_linux_no_features): Add initializer for isa207 field. * arch/ppc-linux-common.c (ppc_linux_match_description): Return new tdescs. * nat/ppc-linux.h (PPC_FEATURE2_ARCH_2_07, PPC_FEATURE2_TAR) (NT_PPC_TAR): Define if not already defined. * features/Makefile (WHICH): Add rs6000/powerpc-isa207-vsx32l and rs6000/powerpc-isa207-vsx64l. (XMLTOC): Add rs6000/powerpc-isa207-vsx32l.xml and rs6000/powerpc-isa207-vsx64l.xml. * features/rs6000/power-tar.xml: New file. * features/rs6000/powerpc-isa207-vsx32l.xml: New file. * features/rs6000/powerpc-isa207-vsx64l.xml: New file. * features/rs6000/powerpc-isa207-vsx32l.c: Generate. * features/rs6000/powerpc-isa207-vsx64l.c: Generate. * regformats/rs6000/powerpc-isa207-vsx32l.dat: Generate. * regformats/rs6000/powerpc-isa207-vsx64l.dat: Generate. * ppc-linux-nat.c (fetch_register, fetch_ppc_registers): Call fetch_regset with the TAR regset. (store_register, store_ppc_registers): Call store_regset with the TAR regset. (ppc_linux_nat_target::read_description): Set isa207 field in the features struct if needed. * ppc-linux-tdep.c: Include features/rs6000/powerpc-isa207-vsx32l.c and features/rs6000/powerpc-isa207-vsx64l.c. (ppc32_regmap_tar, ppc32_linux_tarregset): New globals. (ppc_linux_iterate_over_regset_sections): Call back with the tar regset. (ppc_linux_core_read_description): Check if the tar section is present and set isa207 in the features struct. (_initialize_ppc_linux_tdep): Call initialize_tdesc_powerpc_isa207_vsx32l and initialize_tdesc_powerpc_isa207_vsx64l. * ppc-linux-tdep.h (ppc32_linux_tarregset): Declare. * ppc-tdep.h (gdbarch_tdep) <ppc_tar_regnum>: New field. (enum) <PPC_TAR_REGNUM>: New enum value. * rs6000-tdep.c (rs6000_gdbarch_init): Look for and validate tar feature. (ppc_process_record_op31): Record changes to TAR. gdb/gdbserver/ChangeLog: 2018-10-26 Pedro Franco de Carvalho <pedromfc@linux.ibm.com> * configure.srv (ipa_ppc_linux_regobj): Add powerpc-isa207-vsx64l-ipa.o and powerpc-isa207-vsx32l-ipa.o. (powerpc*-*-linux*): Add powerpc-isa207-vsx32l.o and powerpc-isa207-vsx64l.o to srv_regobj, add rs6000/power-tar.xml, rs6000/powerpc-isa207-vsx32l.xml, and rs6000/powerpc-isa207-vsx64l.xml to srv_xmlfiles. * linux-ppc-tdesc-init.h (enum ppc_linux_tdesc) <PPC_TDESC_ISA207_VSX>: New enum value. (init_registers_powerpc_isa207_vsx32l): Declare. (init_registers_powerpc_isa207_vsx64l): Declare. * linux-ppc-low.c (ppc_fill_tarregset): New function. (ppc_store_tarregset): New function. (ppc_regsets): Add entry for the TAR regset. (ppc_arch_setup): Set isa207 in features struct when needed. Set size for the TAR regsets. (ppc_get_ipa_tdesc_idx): Return PPC_TDESC_ISA207_VSX. (initialize_low_arch): Call init_registers_powerpc_isa207_vsx32l and init_registers_powerpc_isa207_vsx64l. * linux-ppc-ipa.c (get_ipa_tdesc): Handle PPC_TDESC_ISA207_VSX. (initialize_low_tracepoint): Call init_registers_powerpc_isa207_vsx32l and init_registers_powerpc_isa207_vsx64l. gdb/testsuite/ChangeLog: 2018-10-26 Pedro Franco de Carvalho <pedromfc@linux.ibm.com> * gdb.arch/powerpc-tar.c: New file. * gdb.arch/powerpc-tar.exp: New file. gdb/doc/ChangeLog: 2018-10-26 Pedro Franco de Carvalho <pedromfc@linux.ibm.com> * gdb.texinfo (PowerPC Features): Describe new feature "org.gnu.gdb.power.tar".
67 lines
2 KiB
C
67 lines
2 KiB
C
/* Common target dependent code for GNU/Linux on PPC systems.
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Copyright (C) 2018 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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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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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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#ifndef ARCH_PPC_LINUX_COMMON_H
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#define ARCH_PPC_LINUX_COMMON_H
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struct target_desc;
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/* The core file VMX regset has 34 16-byte fields (32 16-byte vector
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registers, plus two fields containing 4-byte registers, VSCR and
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VRSAVE), while the ptrace calls return or read 33 16-byte fields
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plus a 4-byte field for VRSAVE. For simplicity we use the longer
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length for both cases. */
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#define PPC_LINUX_SIZEOF_VRREGSET 544
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#define PPC_LINUX_SIZEOF_VSXREGSET 256
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#define PPC_LINUX_SIZEOF_PPRREGSET 8
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#define PPC_LINUX_SIZEOF_DSCRREGSET 8
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#define PPC_LINUX_SIZEOF_TARREGSET 8
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/* Check if the hwcap auxv entry indicates that isa205 is supported. */
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bool ppc_linux_has_isa205 (CORE_ADDR hwcap);
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/* Features used to determine the target description. */
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struct ppc_linux_features
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{
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unsigned int wordsize;
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bool altivec;
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bool vsx;
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bool isa205;
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bool ppr_dscr;
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bool isa207;
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bool cell;
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};
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/* Base value for ppc_linux_features variables. */
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const struct ppc_linux_features ppc_linux_no_features = {
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0,
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false,
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false,
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false,
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false,
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false,
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false,
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};
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/* Return a target description that matches FEATURES. */
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const struct target_desc * ppc_linux_match_description
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(struct ppc_linux_features features);
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#endif /* ARCH_PPC_LINUX_COMMON_H */
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