[PowerPC] Add support for TAR
authorEdjunior Barbosa Machado <emachado@linux.vnet.ibm.com>
Fri, 26 Oct 2018 12:37:54 +0000 (09:37 -0300)
committerPedro Franco de Carvalho <pedromfc@linux.ibm.com>
Fri, 26 Oct 2018 13:11:33 +0000 (10:11 -0300)
commitf2cf6173f33bbb562881c571bfecd129fe94b158
treebef6f882782fecf1c92393acee00f685a112cff7
parent7ca18ed6d22398dd3009ba72d3a1e7747e40753d
[PowerPC] Add support for TAR

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".
28 files changed:
gdb/ChangeLog
gdb/arch/ppc-linux-common.c
gdb/arch/ppc-linux-common.h
gdb/arch/ppc-linux-tdesc.h
gdb/doc/ChangeLog
gdb/doc/gdb.texinfo
gdb/features/Makefile
gdb/features/rs6000/power-tar.xml [new file with mode: 0644]
gdb/features/rs6000/powerpc-isa207-vsx32l.c [new file with mode: 0644]
gdb/features/rs6000/powerpc-isa207-vsx32l.xml [new file with mode: 0644]
gdb/features/rs6000/powerpc-isa207-vsx64l.c [new file with mode: 0644]
gdb/features/rs6000/powerpc-isa207-vsx64l.xml [new file with mode: 0644]
gdb/gdbserver/ChangeLog
gdb/gdbserver/configure.srv
gdb/gdbserver/linux-ppc-ipa.c
gdb/gdbserver/linux-ppc-low.c
gdb/gdbserver/linux-ppc-tdesc-init.h
gdb/nat/ppc-linux.h
gdb/ppc-linux-nat.c
gdb/ppc-linux-tdep.c
gdb/ppc-linux-tdep.h
gdb/ppc-tdep.h
gdb/regformats/rs6000/powerpc-isa207-vsx32l.dat [new file with mode: 0644]
gdb/regformats/rs6000/powerpc-isa207-vsx64l.dat [new file with mode: 0644]
gdb/rs6000-tdep.c
gdb/testsuite/ChangeLog
gdb/testsuite/gdb.arch/powerpc-tar.c [new file with mode: 0644]
gdb/testsuite/gdb.arch/powerpc-tar.exp [new file with mode: 0644]