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This patch adds support for Hardware Transactional Memory registers
for the powerpc linux native and core file targets, and for the
pwoerpc linux server stub.
These registers include both the HTM special-purpose registers (TFHAR,
TEXASR and TFIAR) as well as the set of registers that are
checkpointed (saved) when a transaction is initiated, which the
processor restores in the event of a transaction failure.
The set of checkpointed general-purpose registers is returned by the
linux kernel in the same format as the regular general-purpose
registers, defined in struct pt_regs. However, the architecture
specifies that only some of the registers present in pt_regs are
checkpointed (GPRs 0-31, CR, XER, LR and CTR). The kernel fills the
slots for MSR and NIP with other info. The other fields usually don't
have meaningful values. GDB doesn't define registers that are not
checkpointed in the architecture, but when generating a core file, GDB
fills the slot for the checkpointed MSR with the regular MSR. These
are usually similar, although some bits might be different, and in
some cases the checkpointed MSR will have a value of 0 in a
kernel-generated core-file. The checkpointed NIP is filled with TFHAR
by GDB in the core-file, which is what the kernel does. The other
fields are set to 0 by GDB.
Core files generated by the kernel have a note section for
checkpointed GPRs with the same size for both 32-bit and 64-bit
threads, and the values for the registers of a 32-bit thread are
squeezed in the first half, with no useful data in the second half.
GDB generates a smaller note section for 32-bit threads, but can read
both sizes.
The checkpointed XER is required to be 32-bit in the target
description documentation, even though the more recent ISAs define it
as 64-bit wide, since the high-order 32-bits are reserved, and because
in Linux there is no way to get a 64-bit checkpointed XER for 32-bit
threads. If this changes in the future, the target description
feature requirement can be relaxed to allow for a 64-bit checkpointed
XER.
Access to the checkpointed CR (condition register) can be confusing.
The architecture only specifies that CR fields 1 to 7 (the 24 least
significant bits) are checkpointed, but the kernel provides all 8
fields (32 bits). The value of field 0 is not masked by ptrace, so it
will sometimes show the result of some kernel operation, probably
treclaim., which sets this field.
The checkpointed registers are marked not to be saved and restored.
Inferior function calls during an active transaction don't work well,
and it's unclear what should be done in this case. TEXASR and TFIAR
can be altered asynchronously, during transaction failure recording,
so they are also not saved and restored. For consistency neither is
TFHAR.
Record and replay also doesn't work well when transactions are
involved. This patch doesn't address this, so the values of the HTM
SPRs will sometimes be innacurate when the record/relay target is
enabled. For instance, executing a "tbegin." alters TFHAR and TEXASR,
but these changes are not currently recorded.
Because the checkpointed registers are only available when a
transaction is active (or suspended), ptrace can return ENODATA when
gdb tries to read these registers and the inferior is not in a
transactional state. The registers are set to the unavailable state
when this happens. When gbd tries to write to one of these registers,
and it is unavailable, an error is raised.
The "fill" functions for checkpointed register sets in the server stub
are not implemented for the same reason as for the EBB register set,
since ptrace can also return ENODATA for checkpointed regsets. The
same issues with 'G' packets apply here.
Just like for the EBB registers, tracepoints will not mark the
checkpointed registers as unavailable if the inferior was not in a
transaction, so their content will also show 0 instead of
<unavailable> when inspecting trace data.
The new tests record the values of the regular registers before
stepping the inferior through a "tbegin." instruction to start a
transaction, then the checkpointed registers are checked against the
recorded pre-transactional values. New values are written to the
checkpointed registers and recorded, the inferior continues until the
transaction aborts (which is usually immediately when it is resumed),
and the regular registers are checked against the recorded values,
because the abort should have reverted the registers to these values.
Like for the EBB registers, target_store_registers will ignore the
checkpointed registers when called with -1 as the regno
argument (store all registers in one go).
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_htm_vsx32l)
(tdesc_powerpc_isa207_htm_vsx64l): Declare.
* arch/ppc-linux-common.h (PPC_LINUX_SIZEOF_TM_SPRREGSET)
(PPC32_LINUX_SIZEOF_CGPRREGSET, PPC64_LINUX_SIZEOF_CGPRREGSET)
(PPC_LINUX_SIZEOF_CFPRREGSET, PPC_LINUX_SIZEOF_CVMXREGSET)
(PPC_LINUX_SIZEOF_CVSXREGSET, PPC_LINUX_SIZEOF_CPPRREGSET)
(PPC_LINUX_SIZEOF_CDSCRREGSET, PPC_LINUX_SIZEOF_CTARREGSET):
Define.
(struct ppc_linux_features) <htm>: New field.
(ppc_linux_no_features): Add initializer for htm field.
* arch/ppc-linux-common.c (ppc_linux_match_description): Return
new tdescs.
* nat/ppc-linux.h (PPC_FEATURE2_HTM, NT_PPC_TM_CGPR)
(NT_PPC_TM_CFPR, NT_PPC_TM_CVMX, NT_PPC_TM_CVSX)
(NT_PPC_TM_SPR, NT_PPC_TM_CTAR, NT_PPC_TM_CPPR, NT_PPC_TM_CDSCR):
Define if not already defined.
* features/Makefile (WHICH): Add rs6000/powerpc-isa207-htm-vsx32l
and rs6000/powerpc-isa207-htm-vsx64l.
(XMLTOC): Add rs6000/powerpc-isa207-htm-vsx32l.xml and
rs6000/powerpc-isa207-htm-vsx64l.xml.
* features/rs6000/power-htm-spr.xml: New file.
* features/rs6000/power-htm-core.xml: New file.
* features/rs6000/power64-htm-core.xml: New file.
* features/rs6000/power-htm-fpu.xml: New file.
* features/rs6000/power-htm-altivec.xml: New file.
* features/rs6000/power-htm-vsx.xml: New file.
* features/rs6000/power-htm-ppr.xml: New file.
* features/rs6000/power-htm-dscr.xml: New file.
* features/rs6000/power-htm-tar.xml: New file.
* features/rs6000/powerpc-isa207-htm-vsx32l.xml: New file.
* features/rs6000/powerpc-isa207-htm-vsx64l.xml: New file.
* features/rs6000/powerpc-isa207-htm-vsx32l.c: Generate.
* features/rs6000/powerpc-isa207-htm-vsx64l.c: Generate.
* regformats/rs6000/powerpc-isa207-htm-vsx32l.dat: Generate.
* regformats/rs6000/powerpc-isa207-htm-vsx64l.dat: Generate.
* ppc-linux-nat.c (fetch_register, fetch_ppc_registers): Call
fetch_regset with HTM regsets.
(store_register, store_ppc_registers): Call store_regset with HTM
regsets.
(ppc_linux_nat_target::read_description): Set htm field in the
features struct if needed.
* ppc-linux-tdep.c: Include
features/rs6000/powerpc-isa207-htm-vsx32l.c and
features/rs6000/powerpc-isa207-htm-vsx64l.c.
(ppc32_regmap_tm_spr, ppc32_regmap_cgpr, ppc64_le_regmap_cgpr)
(ppc64_be_regmap_cgpr, ppc32_regmap_cfpr, ppc32_le_regmap_cvmx)
(ppc32_be_regmap_cvmx, ppc32_regmap_cvsx, ppc32_regmap_cppr)
(ppc32_regmap_cdscr, ppc32_regmap_ctar): New globals.
(ppc32_linux_tm_sprregset, ppc32_linux_cgprregset)
(ppc64_be_linux_cgprregset, ppc64_le_linux_cgprregset)
(ppc32_linux_cfprregset, ppc32_le_linux_cvmxregset)
(ppc32_be_linux_cvmxregset, ppc32_linux_cvsxregset)
(ppc32_linux_cpprregset, ppc32_linux_cdscrregset)
(ppc32_linux_ctarregset): New globals.
(ppc_linux_cgprregset, ppc_linux_cvmxregset): New functions.
(ppc_linux_collect_core_cpgrregset): New function.
(ppc_linux_iterate_over_regset_sections): Call back with the htm
regsets.
(ppc_linux_core_read_description): Check if the tm spr section is
present and set htm in the features struct.
(_initialize_ppc_linux_tdep): Call
initialize_tdesc_powerpc_isa207_htm_vsx32l and
initialize_tdesc_powerpc_isa207_htm_vsx64l.
* ppc-linux-tdep.h (ppc_linux_cgprregset, ppc_linux_cvmxregset):
Declare.
(ppc32_linux_tm_sprregset, ppc32_linux_cfprregset)
(ppc32_linux_cvsxregset, ppc32_linux_cpprregset)
(ppc32_linux_cdscrregset, ppc32_linux_ctarregset): Declare.
* ppc-tdep.h (struct gdbarch_tdep) <have_htm_spr, have_htm_core>:
New fields.
<have_htm_fpu, have_htm_altivec, have_htm_vsx>:
Likewise.
<ppc_cppr_regnum, ppc_cdscr_regnum, ppc_ctar_regnum>: Likewise.
<ppc_cdl0_regnum, ppc_cvsr0_regnum, ppc_cefpr0_regnum>: Likewise.
(enum) <PPC_TFHAR_REGNUM, PPC_TEXASR_REGNUM, PPC_TFIAR_REGNUM>:
New enum fields.
<PPC_CR0_REGNUM, PPC_CCR_REGNUM, PPC_CXER_REGNUM>: Likewise.
<PPC_CLR_REGNUM, PPC_CCTR_REGNUM, PPC_CF0_REGNUM>: Likewise.
<PPC_CFPSCR_REGNUM, PPC_CVR0_REGNUM, PPC_CVSCR_REGNUM>: Likewise.
<PPC_CVRSAVE_REGNUM, PPC_CVSR0_UPPER_REGNUM>: Likewise.
<PPC_CPPR_REGNUM, PPC_CDSCR_REGNUM>: Likewise.
<PPC_CTAR_REGNUM>: Likewise.
(PPC_IS_TMSPR_REGNUM, PPC_IS_CKPTGP_REGNUM, PPC_IS_CKPTFP_REGNUM)
(PPC_IS_CKPTVMX_REGNUM, PPC_IS_CKPTVSX_REGNUM): Define.
* rs6000-tdep.c (IS_CDFP_PSEUDOREG, IS_CVSX_PSEUDOREG)
(IS_CEFP_PSEUDOREG): Define.
(rs6000_register_name): Hide the upper halves of checkpointed VSX
registers. Return names for the checkpointed DFP, VSX, and EFP
pseudo registers.
(rs6000_pseudo_register_type): Remove initial assert and raise an
internal error in the else clause instead. Return types for the
checkpointed DFP, VSX, and EFP pseudo registers.
(dfp_pseudo_register_read, dfp_pseudo_register_write): Handle
checkpointed DFP pseudo registers.
(vsx_pseudo_register_read, vsx_pseudo_register_write): Handle
checkpointed VSX pseudo registers.
(efp_pseudo_register_read, efp_pseudo_register_write): Rename
from efpr_pseudo_register_read and
efpr_pseudo_register_write. Handle checkpointed EFP pseudo
registers.
(rs6000_pseudo_register_read, rs6000_pseudo_register_write):
Handle checkpointed DFP, VSX, and EFP registers.
(dfp_ax_pseudo_register_collect, vsx_ax_pseudo_register_collect)
(efp_ax_pseudo_register_collect): New functions.
(rs6000_ax_pseudo_register_collect): Move DFP, VSX and EFP pseudo
register logic to new functions. Handle checkpointed DFP, VSX,
and EFP pseudo registers.
(rs6000_gdbarch_init): Look for and validate the htm features.
Include checkpointed DFP, VSX and EFP pseudo-registers.
* NEWS: Mention access to PPR, DSCR, TAR, EBB/PMU registers and
HTM registers.
gdb/gdbserver/ChangeLog:
2018-10-26 Pedro Franco de Carvalho <pedromfc@linux.ibm.com>
* configure.srv (ipa_ppc_linux_regobj): Add
powerpc-isa207-htm-vsx32l-ipa.o and
powerpc-isa207-htm-vsx64l-ipa.o.
(powerpc*-*-linux*): Add powerpc-isa207-htm-vsx32l.o and
powerpc-isa207-htm-vsx64l.o to srv_regobj. Add
rs6000/power-htm-spr.xml, rs6000/power-htm-core.xml,
rs6000/power64-htm-core.xml, rs6000/power-htm-fpu.xml,
rs6000/power-htm-altivec.xml, rs6000/power-htm-vsx.xml,
rs6000/power-htm-ppr.xml, rs6000/power-htm-dscr.xml,
rs6000/power-htm-tar.xml, rs6000/powerpc-isa207-htm-vsx32l.xml,
and rs6000/powerpc-isa207-htm-vsx64l.xml to srv_xmlfiles.
* linux-ppc-tdesc-init.h (enum ppc_linux_tdesc)
<PPC_TDESC_ISA207_HTM_VSX>: New enum value.
(init_registers_powerpc_isa207_htm_vsx32l)
(init_registers_powerpc_isa207_htm_vsx64l): Declare.
* linux-ppc-low.c (ppc_fill_tm_sprregset, ppc_store_tm_sprregset)
(ppc_store_tm_cgprregset, ppc_store_tm_cfprregset)
(ppc_store_tm_cvrregset, ppc_store_tm_cvsxregset)
(ppc_store_tm_cpprregset, ppc_store_tm_cdscrregset)
(ppc_store_tm_ctarregset): New functions.
(ppc_regsets): Add entries for HTM regsets.
(ppc_arch_setup): Set htm in features struct when needed. Set
sizes for the HTM regsets.
(ppc_get_ipa_tdesc_idx): Return PPC_TDESC_ISA207_HTM_VSX.
(initialize_low_arch): Call
init_registers_powerpc_isa207_htm_vsx32l and
init_registers_powerpc_isa207_htm_vsx64l.
* linux-ppc-ipa.c (get_ipa_tdesc): Handle
PPC_TDESC_ISA207_HTM_VSX.
(initialize_low_tracepoint): Call
init_registers_powerpc_isa207_htm_vsx32l and
init_registers_powerpc_isa207_htm_vsx64l.
gdb/testsuite/ChangeLog:
2018-10-26 Pedro Franco de Carvalho <pedromfc@linux.ibm.com>
* gdb.arch/powerpc-htm-regs.c: New file.
* gdb.arch/powerpc-htm-regs.exp: New file.
gdb/doc/ChangeLog:
2018-10-26 Pedro Franco de Carvalho <pedromfc@linux.ibm.com>
* gdb.texinfo (PowerPC Features): Describe new features
"org.gnu.gdb.power.htm.spr", "org.gnu.gdb.power.htm.core",
"org.gnu.gdb.power.htm.fpu", "org.gnu.gdb.power.htm.altivec",
"org.gnu.gdb.power.htm.vsx", "org.gnu.gdb.power.htm.ppr",
"org.gnu.gdb.power.htm.dscr", "org.gnu.gdb.power.htm.tar".
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This patch adds support for registers of the Event Based Branching and
Performance Monitoring Units for the powerpc linux native and core
file targets, and for the powerpc linux server stub.
All three EBB registers are accessible. Only a subset of the PMU
registers can be accessed through ptrace. Because of this, the PMU
registers are enumerated individually in gdbarch_tdep, as opposed to
having a single "have_pmu" flag. This is intended to make it easier
to add additional PMU registers in the future, since checking a
"have_pmu" flag elsewhere in the code would no longer be correct. The
tdesc feature is named org.gnu.gdb.power.linux.pmu because of this.
It's unclear if it makes sense to save and restore these registers
across function calls, since some of them can be modified
asynchronously. They are also not tracked in record-replay mode.
The kernel can return ENODATA when ptrace is used to get the EBB
registers, unless a linux performance event that uses EBB is open in
the inferior. For this reason, the "fill" functions in the server
stub for the ebb register sets is not implemented.
Since gdbserver writes all registers in one go before resuming the
inferior, this error would not be detected at the time the user tries
to write to one of the registers on the client side, and gdbserver
would print out warnings every time it resumes the inferior when no
ebb performance event is opened, so there is currently no
straightforward way to handle this case. This means the ebb registers
in the client-side regcache can become dirty when the user tries to
write to them, until the inferior is resumed and stopped again.
A related issue is that 'G' packets used to write to unrelated
registers will include bad data for the EBB registers if they are
unavailable, since no register status information is included in the
'G' packet. This data won't be written to the inferior by the
gdbserver stub because the "fill" functions are not implemented, and
currently the gdbserver stub doesn't change the status of the
registers in its own regcache in response to 'G' packets.
Another limitation for the ebb registers is that traceframes don't
record if registers are available or not, so if these registers are
collected when a tracepoint is hit and the inferior has no ebb event
opened, the user will see zero values for all of them, instead of the
usual <unavailable>.
Because these registers are often unavailable, trying to store them
with target_store_registers with -1 for the regno argument (all
registers) would almost always fail, so they are ignored in this case.
gdb/ChangeLog:
2018-10-26 Edjunior Barbosa Machado <emachado@linux.vnet.ibm.com>
Pedro Franco de Carvalho <pedromfc@linux.ibm.com>
* arch/ppc-linux-common.h (PPC_LINUX_SIZEOF_EBBREGSET)
(PPC_LINUX_SIZEOF_PMUREGSET): Declare.
* nat/ppc-linux.h (PPC_FEATURE2_EBB, NT_PPC_EBB, NT_PPC_PMU):
Define if not already defined.
* features/rs6000/power-ebb.xml: New file.
* features/rs6000/power-linux-pmu.xml: New file.
* features/rs6000/powerpc-isa207-vsx32l.xml: Include ebb and pmu
features.
* features/rs6000/powerpc-isa207-vsx64l.xml: Likewise.
* features/rs6000/powerpc-isa207-vsx32l.c: Re-generate.
* features/rs6000/powerpc-isa207-vsx64l.c: Re-generate.
* regformats/rs6000/powerpc-isa207-vsx32l.dat: Re-generate.
* regformats/rs6000/powerpc-isa207-vsx64l.dat: Re-generate.
* ppc-linux-nat.c (fetch_register, fetch_ppc_registers): Call
fetch_regset with ebb and pmu regsets.
(store_register, store_ppc_registers): Call store_regset with ebb
and pmu regsets.
(ppc_linux_nat_target::read_description): Set isa207 field in the
features struct if ebb and pmu are avaiable.
* ppc-linux-tdep.c (ppc32_regmap_ebb, ppc32_regmap_pmu)
(ppc32_linux_ebbregset, ppc32_linux_pmuregset): New globals.
(ppc_linux_iterate_over_regset_sections): Call back with the ebb
and pmu regsets.
(ppc_linux_core_read_description): Check if the pmu section is
present and set isa207 in the features struct.
* ppc-linux-tdep.h (ppc32_linux_ebbregset)
(ppc32_linux_pmuregset): Declare.
* ppc-tdep.h (struct gdbarch_tdep) <ppc_mmcr0_regnum>: New field.
<ppc_mmcr2_regnum, ppc_siar_regnum, ppc_sdar_regnum>: New fields.
<ppc_sier_regnum>: New field.
(enum): <PPC_BESCR_REGNUM, PPC_EBBHR_REGNUM, PPC_EBBRR_REGNUM>:
New enum values.
<PPC_MMCR0_REGNUM, PPC_MMCR2_REGNUM, PPC_SIAR_REGNUM>: New enum
values.
<PPC_SDAR_REGNUM, PPC_SIER_REGNUM>: New enum values.
(PPC_IS_EBB_REGNUM, PPC_IS_PMU_REGNUM): Define.
* rs6000-tdep.c (rs6000_gdbarch_init): Look for and validate the
ebb and pmu features.
gdb/gdbserver/ChangeLog:
2018-10-26 Pedro Franco de Carvalho <pedromfc@linux.ibm.com>
* configure.srv (powerpc*-*-linux*): Add rs6000/power-ebb.xml and
rs6000/power-linux-pmu.xml to srv_xmlfiles.
* linux-ppc-low.c (ppc_store_ebbregset, ppc_fill_pmuregset)
(ppc_store_pmuregset): New functions.
(ppc_regsets): Add entries for ebb and pmu regsets.
(ppc_arch_setup): Set isa207 in features struct if the ebb and
pmu regsets are available. Set sizes for these regsets.
gdb/doc/ChangeLog:
2018-10-26 Pedro Franco de Carvalho <pedromfc@linux.ibm.com>
* gdb.texinfo (PowerPC Features): Describe new features
"org.gnu.gdb.power.ebb" and "org.gnu.gdb.power.linux.pmu".
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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".
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This patch adds gdb support for the Program Priorty Register and the
Data Stream Control Register, for the powerpc linux native and core
file targets, and for 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_isa205_ppr_dscr_vsx32l)
(tdesc_powerpc_isa205_ppr_dscr_vsx64l): Declare.
* arch/ppc-linux-common.h (PPC_LINUX_SIZEOF_PPRREGSET)
(PPC_LINUX_SIZEOF_DSCRREGSET): Define.
(struct ppc_linux_features) <ppr_dscr>: New field.
(ppc_linux_no_features): Add initializer for ppr_dscr field.
* arch/ppc-linux-common.c (ppc_linux_match_description): Return
new tdescs.
* nat/ppc-linux.h (PPC_FEATURE2_DSCR, NT_PPC_PPR, NT_PPC_DSCR):
Define if not already defined.
* features/Makefile (WHICH): Add
rs6000/powerpc-isa205-ppr-dscr-vsx32l and
rs6000/powerpc-isa205-ppr-dscr-vsx64l.
(XMLTOC): Add rs6000/powerpc-isa205-ppr-dscr-vsx32l.xml and
rs6000/powerpc-isa205-ppr-dscr-vsx64l.xml.
* features/rs6000/power-dscr.xml: New file.
* features/rs6000/power-ppr.xml: New file.
* features/rs6000/powerpc-isa205-ppr-dscr-vsx32l.xml: New file.
* features/rs6000/powerpc-isa205-ppr-dscr-vsx64l.xml: New file.
* features/rs6000/powerpc-isa205-ppr-dscr-vsx32l.c: Generate.
* features/rs6000/powerpc-isa205-ppr-dscr-vsx64l.c: Generate.
* regformats/rs6000/powerpc-isa205-ppr-dscr-vsx32l.dat: Generate.
* regformats/rs6000/powerpc-isa205-ppr-dscr-vsx64l.dat: Generate.
* ppc-linux-nat.c: Include <sys/uio.h>.
(fetch_regset, store_regset, check_regset): New functions.
(fetch_register, fetch_ppc_registers): Call fetch_regset with
DSCR and PPR regsets.
(store_register, store_ppc_registers): Call store_regset with
DSCR and PPR regsets.
(ppc_linux_get_hwcap2): New function.
(ppc_linux_nat_target::read_description): Call
ppc_linux_get_hwcap2 and check_regset, set ppr_dscr field in the
features struct if needed.
* ppc-linux-tdep.c: Include
features/rs6000/powerpc-isa205-ppr-dscr-vsx32l.c and
features/rs6000/powerpc-isa205-ppr-dscr-vsx64l.c.
(ppc32_regmap_ppr, ppc32_regmap_dscr, ppc32_linux_pprregset)
(ppc32_linux_dscrregset): New globals.
(ppc_linux_iterate_over_regset_sections): Call back with the ppr
and dscr regsets.
(ppc_linux_core_read_description): Check if the ppr and dscr
sections are present and set ppr_dscr in the features struct.
(_initialize_ppc_linux_tdep): Call
initialize_tdesc_powerpc_isa205_ppr_dscr_vsx32l and
initialize_tdesc_powerpc_isa205_ppr_dscr_vsx64l.
* ppc-linux-tdep.h (ppc32_linux_pprregset)
(ppc32_linux_dscrregset): Declare.
* ppc-tdep.h (struct gdbarch_tdep) <ppc_ppr_regnum>: New field.
<ppc_dscr_regnum>: New field.
(enum) <PPC_PPR_REGNUM, PPC_DSCR_REGNUM>: New enum values.
* rs6000-tdep.c (rs6000_gdbarch_init): Look for and validate ppr
and dscr features.
(ppc_process_record_op31): Record changes to PPR and DSCR.
gdb/gdbserver/ChangeLog:
2018-10-26 Edjunior Barbosa Machado <emachado@linux.vnet.ibm.com>
Pedro Franco de Carvalho <pedromfc@linux.ibm.com>
* configure.srv (ipa_ppc_linux_regobj): Add
powerpc-isa205-ppr-dscr-vsx32l-ipa.o and
powerpc-isa205-ppr-dscr-vsx64l-ipa.o.
(powerpc*-*-linux*): Add powerpc-isa205-ppr-dscr-vsx32l.o and
powerpc-isa205-ppr-dscr-vsx64l.o to srv_regobj, add
rs6000/power-dscr.xml, rs6000/power-ppr.xml,
rs6000/powerpc-isa205-ppr-dscr-vsx32l.xml and
rs6000/powerpc-isa205-ppr-dscr-vsx64l.xml to srv_xmlfiles.
* linux-ppc-tdesc-init.h (enum ppc_linux_tdesc)
<PPC_TDESC_ISA205_PPR_DSCR_VSX>: New enum value.
(init_registers_powerpc_isa205_ppr_dscr_vsx32l)
(init_registers_powerpc_isa205_ppr_dscr_vsx64l): Declare.
* linux-ppc-low.c: Include "elf/common.h" and <sys/uio.h>.
(ppc_hwcap): Add comment.
(ppc_hwcap2): New global.
(ppc_check_regset, ppc_fill_pprregset, ppc_store_pprregset)
(ppc_fill_dscrregset, ppc_store_dscrregset): New functions.
(ppc_regsets): Add entries for the DSCR and PPR regsets.
(ppc_arch_setup): Get AT_HWCAP2. Set ppr_dscr in features struct
when needed. Set sizes for the the DSCR and PPR regsets.
(ppc_get_ipa_tdesc_idx): Return PPC_TDESC_ISA205_PPR_DSCR_VSX.
(initialize_low_arch): Call
init_registers_powerpc_isa205_ppr_dscr_vsx32l and
init_registers_powerpc_isa205_ppr_dscr_vsx64l.
* linux-ppc-ipa.c (get_ipa_tdesc): Handle
PPC_TDESC_ISA205_PPR_DSCR_VSX.
(initialize_low_tracepoint): Call
init_registers_powerpc_isa205_ppr_dscr_vsx32l and
init_registers_powerpc_isa205_ppr_dscr_vsx64l.
gdb/testsuite/ChangeLog:
2018-10-26 Pedro Franco de Carvalho <pedromfc@linux.ibm.com>
* gdb.arch/powerpc-ppr-dscr.c: New file.
* gdb.arch/powerpc-ppr-dscr.exp: New file.
gdb/doc/ChangeLog:
2018-10-26 Pedro Franco de Carvalho <pedromfc@linux.ibm.com>
* gdb.texinfo (PowerPC Features): Describe new features
"org.gnu.gdb.power.ppr" and "org.gnu.gdb.power.dscr".
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This changes regdat.sh to emit the xmltarget_${name} variable inside
the #ifndef IN_PROCESS_AGENT block. This avoids a -Wunused-variable
warning for some builds. Thanks to Pedro for investigating this one.
gdb/ChangeLog
2018-07-22 Tom Tromey <tom@tromey.com>
* regformats/regdat.sh: Define xmltarget_${name} inside
#ifndef IN_PROCESS_AGENT.
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On Windows, starting a new process with GDBserver seems to work,
in the sense that the program does get started, and GDBserver
confirms that it is listening for GDB to connect. However, as soon as
GDB establishes the connection with GDBserver, and starts discussing
with it, GDBserver crashes, with a SEGV.
This SEGV occurs in remote-utils.c::prepare_resume_reply...
| regp = current_target_desc ()->expedite_regs;
| [...]
| while (*regp)
... because, in our case, REGP is NULL.
This patches fixes the issues by adding a parameter to init_target_desc,
in order to make sure that we always provide the list of registers when
we initialize a target description.
gdb/ChangeLog:
PR server/23158:
* regformats/regdat.sh: Adjust script, following the addition
of the new expedite_regs parameter to init_target_desc.
gdb/gdbserver/ChangeLog:
PR server/23158:
* tdesc.h (init_target_desc) <expedite_regs>: New parameter.
* tdesc.c (init_target_desc) <expedite_regs>: New parameter.
Use it to set the expedite_regs field in the given tdesc.
* x86-tdesc.h: New file.
* linux-aarch64-tdesc.c (aarch64_linux_read_description):
Adjust following the addition of the new expedite_regs parameter
to init_target_desc.
* linux-tic6x-low.c (tic6x_read_description): Likewise.
* linux-x86-tdesc.c: #include "x86-tdesc.h".
(i386_linux_read_description, amd64_linux_read_description):
Adjust following the addition of the new expedite_regs parameter
to init_target_desc.
* lynx-i386-low.c: #include "x86-tdesc.h".
(lynx_i386_arch_setup): Adjust following the addition of the new
expedite_regs parameter to init_target_desc.
* nto-x86-low.c: #include "x86-tdesc.h".
(nto_x86_arch_setup): Adjust following the addition of the new
expedite_regs parameter to init_target_desc.
* win32-i386-low.c: #include "x86-tdesc.h".
(i386_arch_setup): Adjust following the addition of the new
expedite_regs parameter to init_target_desc.
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Add a print_xml_feature visitor class which turns a
target description into xml. Both gdb and gdbserver can do this.
gdb/
* common/tdesc.c (print_xml_feature::visit_pre): Add xml parsing.
(print_xml_feature::visit_post): Likewise.
(print_xml_feature::visit): Likewise.
* common/tdesc.h (tdesc_get_features_xml): Use const tdesc.
(print_xml_feature): Add new class.
* regformats/regdat.sh: Null xmltarget on feature targets.
* target-descriptions.c (struct target_desc): Add xmltarget.
(maintenance_check_tdesc_xml_convert): Add unittest function.
(tdesc_get_features_xml): Add function to get xml.
(maintenance_check_xml_descriptions): Test xml generation.
* xml-tdesc.c (string_read_description_xml): Add function.
* xml-tdesc.h (string_read_description_xml): Add declaration.
gdbserver/
* gdb/gdbserver/server.c (get_features_xml): Remove cast.
* tdesc.c (void target_desc::accept): Fill in function.
(tdesc_get_features_xml): Remove old xml creation.
(print_xml_feature::visit_pre): Add xml vistor.
* tdesc.h (struct target_desc): Make xmltarget mutable.
(tdesc_get_features_xml): Remove declaration.
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For all targets which use the newer style target descriptions, add a
"feature" marker in the dat files.
Update regdat.sh to parse feature, but do not use it (yet).
gdb/
* features/Makefile: Add feature marker to targets with new style
target descriptions.
* regformats/aarch64.dat: Regenerate.
* regformats/i386/amd64-avx-avx512-linux.dat: Likewise.
* regformats/i386/amd64-avx-linux.dat: Likewise.
* regformats/i386/amd64-avx-mpx-avx512-pku-linux.dat: Likewise.
* regformats/i386/amd64-avx-mpx-linux.dat: Likewise.
* regformats/i386/amd64-linux.dat: Likewise.
* regformats/i386/amd64-mpx-linux.dat: Likewise.
* regformats/i386/amd64.dat: Likewise.
* regformats/i386/i386-avx-avx512-linux.dat: Likewise.
* regformats/i386/i386-avx-linux.dat: Likewise.
* regformats/i386/i386-avx-mpx-avx512-pku-linux.dat: Likewise.
* regformats/i386/i386-avx-mpx-linux.dat: Likewise.
* regformats/i386/i386-linux.dat: Likewise.
* regformats/i386/i386-mmx-linux.dat: Likewise.
* regformats/i386/i386-mpx-linux.dat: Likewise.
* regformats/i386/i386.dat: Likewise.
* regformats/i386/x32-avx-avx512-linux.dat: Likewise.
* regformats/i386/x32-avx-linux.dat: Likewise.
* regformats/i386/x32-linux.dat: Likewise.
* regformats/tic6x-c62x-linux.dat: Likewise.
* regformats/tic6x-c64x-linux.dat: Likewise.
* regformats/tic6x-c64xp-linux.dat: Likewise.
* regformats/regdat.sh: Parse feature marker.
|
|
gdb/
* common/tdesc.c (tdesc_feature::accept): Move to here.
(tdesc_feature::operator==): Likewise.
(tdesc_create_reg): Likewise.
* common/tdesc.h (tdesc_type_kind): Likewise.
(struct tdesc_type): Likewise.
(struct tdesc_feature): Likewise.
* regformats/regdat.sh: Create a feature.
* target-descriptions.c (tdesc_type_kind): Move from here.
(tdesc_type): Likewise.
(tdesc_type_up): Likewise.
(tdesc_feature): Likewise.
(tdesc_create_reg): Likewise.
gdbserver/
* tdesc.c (~target_desc): Remove implictly deleted items.
(init_target_desc): Iterate all features.
(tdesc_get_features_xml): Use vector.
(tdesc_create_feature): Create feature.
* tdesc.h (tdesc_feature) Remove
(target_desc): Add features.
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gdb/
* Makefile.in: Add arch/tdesc.c
* common/tdesc.c: New file.
* common/tdesc.h (tdesc_element_visitor): Move to here.
(tdesc_element): Likewise.
(tdesc_reg): Likewise.
(tdesc_reg_up): Likewise.
* regformats/regdef.h (reg): Add offset to constructors.
* target-descriptions.c (tdesc_element_visitor): Move from here.
(tdesc_element): Likewise.
(tdesc_reg): Likewise.
(tdesc_reg_up): Likewise.
gdbserver/
* Makefile.in: Add common/tdesc.c
* tdesc.c (init_target_desc): init all reg_defs from register vector.
(tdesc_create_reg): Create tdesc_reg.
* tdesc.h (tdesc_feature): Add register vector.
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I noticed that regformats/i386/i386-avx.dat did not get re-generated
when doing "make" in the features directory. I think it's a leftover
from commit
f5a29eb0a663 ("Clean up x86 non-linux GDBserver target descriptions")
I build-tested gdbserver with amd64 and i386.
gdb/ChangeLog:
* regformats/i386/i386-avx.dat: Remove.
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gdb/
* regformats/regdef.h (reg): Add constructors.
gdb/gdbserver/
* regcache.c (find_register_by_number): Return a ref.
(find_regno): Use references.
(register_size): Likewise.
(register_data): Likewise.
* tdesc.c (target_desc::~target_desc): Remove free calls.
(target_desc::operator==): Use std::vector compare.
(init_target_desc): Use reference.
(tdesc_create_reg): Use reg constructors.
* tdesc.h (struct target_desc): Replace pointer with object.
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gdb/ChangeLog:
Update copyright year range in all GDB files
|
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tic6x-uclinux GDBserver uses linux target descriptions, instead of these
non-linux target descriptions. So we can remove these *.dat files.
gdb:
2017-10-16 Yao Qi <yao.qi@linaro.org>
* features/Makefile (WHICH): Remove tic6x-c64xp, tic6x-c64x
tic6x-c62x.
* regformats/tic6x-c62x.dat: Remove.
* regformats/tic6x-c64x.dat: Remove.
* regformats/tic6x-c64xp.dat: Remove.
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Newer Linux kernel versions offer two new register sets in support of the
z/Architecture's guarded storage facility. This patch adds XML
descriptions and the respective autogenerated .c and .dat files for
s390/s390x targets with this feature.
gdb/ChangeLog:
* features/s390-gs-linux64.xml: New file.
* features/s390-gs.xml: New file.
* features/s390-gsbc.xml: New file.
* features/s390x-gs-linux64.xml: New file.
* features/Makefile (WHICH): Add s390-gs-linux64 and
s390x-gs-linux64.
(s390-gs-linux64-expedite, s390x-gs-linux64-expedite): New macros.
(XMLTOC): Add s390-gs-linux64.xml and s390x-linux64.xml.
* features/s390-gs-linux64.c: New generated file.
* features/s390x-gs-linux64.c: New file.
* regformats/s390-gs-linux64.dat: New file.
* regformats/s390x-gs-linux64.dat: New file.
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This patch adds a unit test in GDBserver to test dynamically created
target descriptions equal these pre-generated ones.
gdb/gdbserver:
2017-09-05 Yao Qi <yao.qi@linaro.org>
* linux-x86-tdesc.c: Include selftest.h.
(i386_tdesc_test): New function.
(initialize_low_tdesc): Call selftests::register_test.
* tdesc.h: Include regdef.h.
(target_desc): Override operator == and !=.
gdb:
2017-09-05 Yao Qi <yao.qi@linaro.org>
* regformats/regdef.h (struct reg): Override operator == and !=.
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tdesc_i386_XXX_linux is used in many places in linux-x86-low.c and this
patch adds a new function i386_linux_read_description to return the right
tdesc according to xcr0. i386_linux_read_description is quite similar to
the counterpart in GDB, and the following patch will share the duplicated
code, so this patch adds arch/tdesc.h includes the declarations of various
tdesc apis which are used by the shared code. The generated c feature
files can include arch/tdesc.h only.
gdb/gdbserver:
2017-09-05 Yao Qi <yao.qi@linaro.org>
* configure.srv (srv_tgtobj): Append linux-x86-tdesc.o.
(ipa_obj): Likewise.
* linux-i386-ipa.c: Include common/x86-xstate.h
(get_ipa_tdesc): Call i386_linux_read_description.
(initialize_low_tracepoint): Don't call init_registers_XXX
functions, call initialize_low_tdesc instead.
* linux-x86-low.c (x86_linux_read_description): Call
i386_linux_read_description.
(initialize_low_arch): Don't call init_registers_i386_XXX
functions, call initialize_low_tdesc.
* linux-x86-tdesc.c: New file.
* linux-x86-tdesc.h (x86_linux_tdesc): New X86_TDESC_LAST.
(i386_get_ipa_tdesc_idx): Declare.
(i386_get_ipa_tdesc): Declare.
(initialize_low_tdesc): Declare.
gdb:
2017-09-05 Yao Qi <yao.qi@linaro.org>
* arch/tdesc.h: New file.
* regformats/regdat.sh: Generate code using tdesc_create_reg.
* target-descriptions.c: Update comments.
* target-descriptions.h: Include "arch/tdesc.h". Remove the
declarations.
* features/i386/32bit-avx.c: Re-generated.
* features/i386/32bit-avx512.c: Re-generated.
* features/i386/32bit-core.c: Re-generated.
* features/i386/32bit-linux.c: Re-generated.
* features/i386/32bit-mpx.c: Re-generated.
* features/i386/32bit-pkeys.c: Re-generated.
* features/i386/32bit-sse.c: Re-generated.
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Nowadays, target_desc.reg_defs is a pointer points to a pre-generated
array, which is not flexible. This patch changes it from an array
to a VEC so that GDBserver can create target descriptions dynamically
later. Instead of using pre-generated array, the -generated.c calls
VEC_safe_push to add each register to vector.
Since target_desc.reg_defs is used in IPA, we need to build common/vec.c
for IPA too.
gdb/gdbserver:
2017-09-05 Yao Qi <yao.qi@linaro.org>
* Makefile.in (IPA_OBJS): Add vec-ipa.o
* regcache.c (get_thread_regcache): Use VEC_length.
(init_register_cache): Likewise.
(regcache_cpy): Likewise.
(registers_to_string): Iterate reg_defs via VEC_iterate.
(find_regno): Likewise.
(find_register_by_number): Use VEC_index.
(register_size): Call find_register_by_number.
(register_data): Call find_register_by_number.
(supply_regblock): Use VEC_length.
(regcache_raw_read_unsigned): Likewise.
* tdesc.c (init_target_desc): Iterate reg_defs via
VEC_iterate.
(default_description): Update initializer.
(copy_target_description): Don't update field num_registers.
* tdesc.h (struct target_desc) <reg_defs>: Change it to VEC.
<num_registers>: Remove.
gdb:
2017-09-05 Yao Qi <yao.qi@linaro.org>
* regformats/regdat.sh: Update generated code.
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regformats/regdat.sh generate some *-generated.c files when GDBserver
is built. Each .c file has some static variables, which are only used
within function init_registers_XXX, like this,
static struct reg regs_i386_linux[] = {
{ "eax", 0, 32 },
{ "ecx", 32, 32 },
...
};
static const char *expedite_regs_i386_linux[] = { "ebp", "esp", "eip", 0 };
static const char *xmltarget_i386_linux = "i386-linux.xml";
void
init_registers_i386_linux (void)
{
...
}
This patch moves these static variables' definitions to function
init_registers_XXX, so the generated files look like this,
void
init_registers_i386_linux (void)
{
static struct target_desc tdesc_i386_linux_s;
struct target_desc *result = &tdesc_i386_linux_s;
static struct reg regs_i386_linux[] = {
...
};
static const char *expedite_regs_i386_linux[] = { "ebp", "esp", "eip", 0 };
static const char *xmltarget_i386_linux = "i386-linux.xml";
...
}
We want GDBserver create target descriptions dynamically in each
init_registers_XXXX functions, so this patch moves all the related code
into function init_registers_XXXX, so that the following patch can easily
change function init_registers_XXXX to create target description
dynamically, rather than using current pre-generated array.
gdb:
2017-09-05 Yao Qi <yao.qi@linaro.org>
* regformats/regdat.sh: Adjust code order.
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|
In GDBserver, only tdesc_i386 and tdesc_amd64 are used. There is no point
of generating these *.dat files (which are used to generate *.c files during
GDBserver build.).
gdb:
2017-08-09 Yao Qi <yao.qi@linaro.org>
* features/Makefile (WHICH): Remove i386/ non-linux stuff.
* regformats/i386/amd64-avx-avx512.dat: Remove.
* regformats/i386/amd64-avx-mpx-avx512-pku.dat: Remove.
* regformats/i386/amd64-avx-mpx.dat:Remove.
* regformats/i386/amd64-avx.dat: Remove.
* regformats/i386/amd64-mpx.dat: Remove.
* regformats/i386/i386-avx-avx512.dat: Remove.
* regformats/i386/i386-avx-mpx-avx512-pku.dat: Remove.
* regformats/i386/i386-avx-mpx.dat: Remove.
* regformats/i386/i386-mmx.dat: Remove.
* regformats/i386/i386-mpx.dat: Remove.
gdb/gdbserver:
2017-08-09 Yao Qi <yao.qi@linaro.org>
* configure.srv (srv_i386_regobj): Remove i386-avx.o,
i386-avx-avx512.o, i386-avx-mpx-avx512-pku.o, i386-mpx.o,
i386-avx-mpx.o and i386-mmx.o.
(srv_amd64_regobj): Remove amd64-avx.o, amd64-avx-avx512.o,
amd64-avx-mpx-avx512-pku.o, amd64-mpx.o and amd64-avx-mpx.o.
(srv_i386_xmlfiles): Remove i386/i386-avx.xml,
i386/i386-avx-avx512.xml, i386/i386-avx-mpx-avx512-pku.xml,
i386/i386-mpx.xml, i386/i386-avx-mpx.xml and i386/i386-mmx.xml.
(srv_amd64_xmlfile):i386/amd64-avx.xml, i386/amd64-avx-avx512.xml,
i386/amd64-avx-mpx-avx512-pku.xml, i386/amd64-mpx.xml,
i386/amd64-avx-mpx.xml.
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|
x32 non-linux target descriptions are not used in GDB or GDBserver. This
patch removes them.
gdb:
2017-08-09 Yao Qi <yao.qi@linaro.org>
* amd64-tdep.h (tdesc_x32): Remove the declaration.
* amd64-tdep.c: Don't include features/i386/x32*.c.
(_initialize_amd64_tdep): Don't call initialize_tdesc_x32*
functions.
* features/Makefile (WHICH): Remove i386/x32, i386/x32-avx,
and i386/x32-avx-avx512.
(XMLTOC): Remove i386/x32-avx.xml, i386/x32-avx-avx512.xml,
and i386/x32.xml.
* features/i386/x32-avx-avx512.c: Removed.
* features/i386/x32-avx-avx512.xml: Removed.
* features/i386/x32-avx.c: Removed.
* features/i386/x32-avx.xml: Removed.
* features/i386/x32.c: Removed.
* features/i386/x32.xml: Removed.
* regformats/i386/x32-avx-avx512.dat: Removed.
* regformats/i386/x32-avx.dat: Removed.
* regformats/i386/x32.dat: Removed.
gdb/gdbserver:
2017-08-09 Yao Qi <yao.qi@linaro.org>
* configure.srv (srv_amd64_regobj): Remove x32.o, x32-avx.o
and x32-avx-avx512.o.
(srv_amd64_xmlfiles): Remove i386/x32.xml, i386/x32-avx.xml
i386/x32-avx-avx512.xml.
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|
This permits these registers to be used with non-Linux targets.
gdb/ChangeLog:
* features/Makefile (amd64.dat, amd64-avx.dat, amd64-mpx.dat)
(amd64-avx-mpx.dat, amd64-avx-avx512.dat)
(amd64-avx-mpx-avx512-pku.dat): Add i386/64bit-segments.xml in
those rules.
* features/i386/amd64-avx-avx512.xml: Add 64bit-segments.xml.
* features/i386/amd64-avx-mpx-avx512-pku.xml: Add 64bit-segments.xml.
* features/i386/amd64-avx-mpx.xml: Add 64bit-segments.xml.
* features/i386/amd64-avx.xml: Add 64bit-segments.xml.
* features/i386/amd64-mpx.xml: Add 64bit-segments.xml.
* features/i386/amd64.xml: Add 64bit-segments.xml.
* features/i386/amd64-avx-avx512.c: Regenerated.
* features/i386/amd64-avx-mpx-avx512-pku.c: Regenerated.
* features/i386/amd64-avx-mpx.c: Regenerated.
* features/i386/amd64-avx.c: Regenerated.
* features/i386/amd64-mpx.c: Regenerated.
* features/i386/amd64.c: Regenerated.
* regformats/i386/amd64-avx-avx512.dat: Regenerated.
* regformats/i386/amd64-avx-mpx-avx512-pku.dat: Regenerated.
* regformats/i386/amd64-avx-mpx.dat: Regenerated.
* regformats/i386/amd64-avx.dat: Regenerated.
* regformats/i386/amd64-mpx.dat: Regenerated.
* regformats/i386/amd64.dat: Regenerated.
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|
struct target_desc is used by both GDBserver and IPA, but fields
expedite_regs and xmltarget are only used in GDBserver, so this patch wraps
these two fields by ifndef IN_PROCESS_AGENT. This patch also changes
regformats/regdat.sh to generate .c files in this way too.
gdb/gdbserver:
2017-06-29 Yao Qi <yao.qi@linaro.org>
* tdesc.h (struct target_desc) [IN_PROCESS_AGENT] <expedite_regs>:
Remove.
[IN_PROCESS_AGENT] <xmltarget>: Likewise.
gdb:
2017-06-29 Yao Qi <yao.qi@linaro.org>
* regformats/regdat.sh: Generate code with
"ifndef IN_PROCESS_AGENT".
|
|
The self tests which compare pre-generated target descriptions and
dynamically created target descriptions fail, and it turns out that two
pre-generated target descriptions are wrong, so regenerate them.
gdb:
2017-06-22 Yao Qi <yao.qi@linaro.org>
* regformats/i386/amd64-avx-mpx-avx512-pku-linux.dat: Regenerated.
* regformats/i386/amd64-avx-mpx-avx512-pku.dat: Regenerated.
|
|
Function set_register_cache was removed by 3aee891821f538cfb4e0a08a26196c70127f1474
([GDBserver] Multi-process + multi-arch), so this patch removes the
declaration too.
gdb:
2017-06-06 Yao Qi <yao.qi@linaro.org>
* regformats/regdef.h (set_register_cache): Remove the
declaration.
|
|
This patch adds support for the registers added by the
Memory Protection Keys for Userspace (PKU aka PKEYs) feature.
Native and remote debugging are covered by this patch.
The XSAVE area is extended with a new state containing
the 32-bit wide PKRU register. The new register is added to
amd64-avx-mpx_avx512-* tdesc, thus it is renamed accordingly. Also,
respective xstate mask X86_XSTATE_AVX_MPX_AVX512_MASK is renamed to
X86_XSTATE_AVX_MPX_AVX512_PKU_MASK to reflect the new feature set
it supports.
For more information, please refer to the
Intel(R) 64 and IA-32 Architectures Software Developer's
Manual - Septemper 2015
http://www.intel.com/content/dam/www/public/us/en/documents/
manuals/64-ia-32-architectures-software-developer-manual-325462.pdf
gdb/Changelog:
2015-12-08 Michael Sturm <michael.sturm@intel.com>
* NEWS: Mention addition of PKU feature.
* amd64-linux-nat.c (amd64_linux_gregset32_reg_offset): Add PKRU register.
* amd64-linux-tdep.c (features/i386/amd64-avx-mpx-avx512-linux.c): Rename
to...
(features/i386/amd64-avx-mpx-avx512-pku-linux.c): ...this.
(amd64_linux_gregset_reg_offset): Add PKRU register.
(amd64_linux_core_read_description): Rename
X86_XSTATE_AVX_MPX_AVX512_MASK,
rename tdesc_amd64_avx_mpx_avx512_pku_linux.
(_initialize_amd64_linux_tdep): Rename
initialize_tdesc_amd64_avx_mpx_avx512_linux.
* amd64-linux-tdep.h (AMD64_LINUX_ORIG_RAX_REGNUM): Adjust regnum
calculation.
(tdesc_amd64_avx_mpx_avx512_linux): Rename to...
(tdesc_amd64_avx_mpx_avx512_pku_linux): ...this.
* amd64-tdep.c (features/i386/amd64-avx-mpx-avx512-pku.c): Rename to...
(features/i386/amd64-avx-mpx-avx512-pku.c): ...this.
(amd64_pkeys_names): New register name for raw register PKRU.
(amd64_init_abi): Add code to initialize PKRU tdep variables if feature
is present.
(amd64_target_description): Rename X86_XSTATE_AVX_MPX_AVX512_MASK,
rename tdesc_amd64_avx_mpx_avx512.
(_initialize_amd64_tdep): Rename initialize_tdesc_amd64_avx_mpx_avx512.
* amd64-tdep.h (enum amd64_regnum): Add PKRU register.
(AMD64_NUM_REGS): Adjust regnum calculation.
* i386-linux.nat.c (GETXSTATEREGS_SUPPLIES): Extend range of
registers supplied via XSTATE by PKRU register.
* common/x86-xstate.h (X86_XSTATE_PKRU): New macro.
(X86_XSTATE_AVX_MPX_AVX512_MASK): Add PKRU and renamed mask.
(X86_XSTATE_ALL_MASK): Rename X86_XSTATE_AVX_MPX_AVX512_MASK.
(X86_XSTATE_PKRU_SIZE): New macro.
(X86_XSTATE_MAX_SIZE): Adjust size.
(HAS_PKRU(XCR0)): New macro.
(X86_XSTATE_SIZE): Add checkfor PKRU.
* features/Makefile (WHICH): Rename i386/i386-avx-mpx-avx512,
i386/i386-avx-mpx-avx512-linux, i386/amd64-avx-mpx-avx512,
i386/amd64-avx-mpx-avx512-linux.
(i386/i386-avx-mpx-avx512-expedite): Rename expedite.
(i386/i386-avx-mpx-avx512-linux-expedite): Likewise.
(i386/amd64-avx-mpx-avx512-expedite): Likewise.
(i386/amd64-avx-mpx-avx512-linux-expedite): Likewise.
(XMLTOC): Rename i386/amd64-avx-mpx-avx512-linux.xml,
i386/amd64-avx-mpx-avx512.xml, i386/i386-avx-mpx-avx512-linux.xml,
i386/i386-avx-mpx-avx512.xml.
((outdir)/i386/i386-avx-mpx-avx512.dat): Rename rule, add
i386/32bit-pkeys.xml.
((outdir)/i386/i386-avx-mpx-avx512-pku-linux.dat): Likewise.
((outdir)/i386/amd64-avx-mpx-avx512.dat): Rename rule, add
i386/64bit-pkeys.xml.
((outdir)/i386/amd64-avx-mpx-avx512-linux.dat): Likewise.
* features/i386/32bit-pkeys.xml: New file.
* features/i386/64bit-pkeys.xml: Likewise.
* features/i386/amd64-avx-mpx-avx512-linux-pku.c: Regenerate from
renamed XML file.
* features/i386/amd64-avx-mpx-avx512-linux.xml: Rename to
amd64-avx-mpx-avx512-pku-linux.xml, add 64bit-pkeys.xml
* features/i386/amd64-avx-mpx-avx512.c: Regenerate from
renamed XML file.
* features/i386/amd64-avx-mpx-avx512.xml: Rename to
amd64-avx-mpx-avx512-pku.xml, add 64bit-pkeys.xml.
* features/i386/i386-avx-mpx-avx512-linux.c: Regenerate from
renamed XML file.
* features/i386/i386-avx-mpx-avx512-linux.xml: Rename to
i386-avx-mpx-avx512-pku-linux.xml, add 32bit-pkeys.xml.
* features/i386/i386-avx-mpx-avx512.c: Regenerate from
renamed XML file.
* features/i386/i386-avx-mpx-avx512.xml: Rename to
i386-avx-mpx-avx512-pku.xml, add 32bit-pkeys.xml.
* i386-linux-nat.c (GETXSTATEREGS_SUPPLIES): Change to use
I386_PKEYS_NUM_REGS.
* i386-linux-tdep.c (features/i386/i386-avx-mpx-avx512-linux.c): Rename
include.
(i386_linux_gregset_reg_offset): Add PKRU register.
(i386_linux_core_read_description): Rename xstate mask and returned
tdesc for X86_XSTATE_AVX_MPX_AVX512_PKU_MASK.
(_initialize_i386_linux_tdep): Rename
initialize_tdesc_i386_avx_mpx_avx512_linux.
* i386-linux-tdep.h (I386_LINUX_ORIG_EAX_REGNUM): Adjuste regnum
calculation.
(tdesc_i386_avx_mpx_avx512_linux): Rename prototype.
(/* Format of XSAVE...): Add pkru register.
* i386-tdep.c (i386-avx-mpx-avx512.c): Rename include.
(i386_pkeys_names): New register name for raw register PKRU.
(i386_pkru_regnum_p): Add function to look up register number of
PKRU raw register.
(i386_register_reggroup_p): Add code to exclude PKRU from general
register group.
(i386_validate_tdesc_p): Add code to handle PKRU feature, add PKRU
registers if feature is present in xcr0.
(i386_gdbarch_init): Adjust number of registers in architecture. Add code
to initialize PKRU feature variables in tdep structure.
(i386_target_description): Rename xstate mask and returned
tdesc for X86_XSTATE_AVX_MPX_AVX512_PKU_MASK.
(_initialize_i386_tdep): Rename initialize_tdesc_i386_avx_mpx_avx512.
* i386-tdep.h (struct gdbarch_tdep): Add feature variables to tdep
structure.
(enum i386_regnum): Add PKRU register.
(I386_PKEYS_NUM_REGS): New define for number of registers in PKRU feature.
(i386_pkru_regnum_p): New prototype.
* i387-tdep.c (xsave_pkeys_offset): New table for PKRU offsets in
XSAVE buffer.
(XSAVE_PKEYS_ADDR): New macro.
(i387_supply_xsave): Add code to handle PKRU register.
(i387_collect_xsave): Likewise.
* i387-tdep.h (I387_NUM_PKEYS_REGS): New define for number of registers
in PKRU feature.
(I387_PKRU_REGNUM): New macro.
(I387_PKEYSEND_REGNUM): Likewise.
* regformats/i386/amd64_avx_mpx_avx512_pku_linux.dat: Regenerate from
renamed XML file.
* regformats/i386/amd64_avx_mpx_avx512_pku.dat: Likewise.
* regformats/i386/i386/amd64-avx-mpx-avx512-pku.dat: Likewise.
* regformats/i386/i386_avx_mpx_avx512_pku_linux.dat: Likewise.
testsuite/Changelog:
2016-04-18 Michael Sturm <michael.sturm@intel.com>
* gdb.arch/i386-pkru.c: New file.
* gdb.arch/i386-pkru.exp: Likewise.
gdbserver/Changelog:
2016-04-18 Michael Sturm <michael.sturm@intel.com>
* Makefile.in (clean): Rename i386-avx-mpx-avx512.c,
i386-avx-mpx-avx512-linux.c, amd64-avx-mpx-avx512.c,
amd64-avx-mpx-avx512-linux.c.
(i386-avx-mpx-avx512-linux-ipa.o:): Rename rule and source file.
(amd64-avx-mpx-avx512-linux-ipa.o:): Likewise.
(i386-avx-mpx-avx512.c :): Rename rule, source files and dat files.
(i386-avx-mpx-avx512-linux.c :): Likewise.
(amd64-avx-mpx-avx512.c :): Likewise.
(amd64-avx-mpx-avx512-linux.c :): Likewise.
* configure.srv (srv_i386_regobj): Rename i386-avx-mpx-avx512.o.
(srv_i386_linux_regobj): Rename i386-avx-mpx-avx512-linux.o.
(srv_amd64_regobj): Rename amd64-avx-mpx-avx512.o.
(srv_amd64_linux_regobj): Rename amd64-avx-mpx-avx512-linux.o.
(ipa_i386_linux_regobj): Rename i386-avx-mpx-avx512-linux-ipa.o.
(ipa_amd64_linux_regobj): Rename amd64-avx-mpx-avx512-pku-linux-ipa.o.
(srv_i386_32bit_xmlfiles): Add 32bit-pkeys.xml.
(srv_i386_64bit_xmlfiles): Add 64bit-pkeys.xml.
(srv_i386_xmlfiles): Rename i386/i386-avx-mpx-avx512.xml.
(srv_amd64_xmlfiles): Rename i386/amd64-avx-mpx-avx512.xml.
(srv_i386_linux_xmlfiles): Rename i386/i386-avx-mpx-avx512-linux.xml.
(srv_amd64_linux_xmlfiles): Rename di386/amd64-avx-mpx-avx512-linux.xml.
* i387-fp.c (num_pkeys_registers): New variable.
(struct i387_xsave): Add space for pkru values.
(i387_cache_to_fsave): Add code to handle PKRU register.
(i387_xsave_to_cache): Likewise.
* linux-amd64-ipa.c (get_ipa_tdesc): Rename
tdesc_amd64_avx_mpx_avx512_linux.
(initialize_low_tracepoint): Rename
init_registers_amd64_avx_mpx_avx512_linux.
* linux-i386-ipa.c (get_ipa_desc): Rename
tdesc_i386_avx_mpx_avx512_linux.
(initialize_low_tracepoint): Rename
init_registers_i386_avx_mpx_avx512_linux.
* linux-x86-low.c (x86_64_regmap[]): Add PKRU register.
(x86_linux_read_description): Rename X86_XSTATE_AVX_MPX_AVX512_MASK,
rename tdesc_amd64_avx_mpx_avx512_linux, rename
tdesc_i386_avx_mpx_avx512_linux.
(x86_get_ipa_tdesc_idx): Rename tdesc_amd64_avx_mpx_avx512_linux,
rename tdesc_i386_avx_mpx_avx512_linux.
(initialize_low_arch): Rename init_registers_amd64_avx_mpx_avx512_linux,
rename init_registers_i386_avx_mpx_avx512_linux.
* linux-x86-tdesc.h (init_registers_amd64_avx_mpx_avx512_linux): Renamed
prototype.
(tdesc_amd64_avx_mpx_avx512_linux): Likewise.
(init_registers_i386_avx_mpx_avx512_linux): Likewise.
(tdesc_i386_avx_mpx_avx512_linux): Likewise.
doc/Changelog:
2016-04-18 Michael Sturm <michael.sturm@intel.com>
* gdb.texinfo (i386 Features): Add description of PKRU register.
Change-Id: If75ce5aba7dfd33fdbe3d8b47f04ef3f550c52be
Signed-off-by: Michael Sturm <michael.sturm@intel.com>
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|
Add a dedicated target description for the feature combination
avx-avx512 as implemented by certain IA CPU models.
The corresponding X86_XSTATE_AVX_AVX512_MASK already exists, but shared
the tdesc with X86_XSTATE_AVX_MPX_AVX512_MASK. This caused MPX registers
displayed as undefined on CPUs that only implemented
X86_XSTATE_AVX_AVX512_MASK, which is undesired. This patch solves this issue.
This patch also corrects the wrong usage of x32-avx-mpx-avx512, which is
replaced by x32-avx-avx512. The MPX feature is not implemented in x32 mode.
gdb/Changelog:
2016-04-18 Michael Sturm <michael.sturm@intel.com>
* amd64-linux-tdep.c (features/i386/amd64-avx-avx512-linux.c):
New include.
(features/i386/x32-avx-mpx-avx512-linux.c): Rename to...
(features/i386/x32-avx-avx512-linux.c): ...this.
(amd64_linux_core_read_description): Add dedicated cases for
X86_XSTATE_AVX_AVX512_MASK and return appropriate tdesc.
(_initialize_amd64_linux_tdep): Add calls to
initialize_tdesc_amd64_avx_avx512_linux and
initialize_tdesc_x32_avx_avx512_linux.
* amd64-linux.tdep.h (tdesc_amd64_avx_avx512_linux): New prototype.
(tdesc_x32_avx_mpx_avx512_linux): Rename to...
(tdesc_x32_avx_avx512_linu): ...this.
* amd64-tdep.c (features/i386/amd64-avx-avx512.c): New include.
(features/i386/x32-avx-mpx-avx512.c): Rename to...
(features/i386/x32-avx-avx512.c): ...this.
(amd64_target_description): Add dedicated case for
X86_XSTATE_AVX_AVX512_MASK and return appropriate tdesc.
(_initialize_amd64_tdep): Add call to
initialize_tdesc_amd64_avx_avx512.
(initialize_tdesc_x32_avx_mpx_avx512): Rename to...
(initialize_tdesc_x32_avx_avx512): ...this.
* features/Makefile (WHICH): New tdescs i386/i386-avx-avx512,
i386/i386-avx-avx512-linux, i386/amd64-avx-avx512,
i386/amd64-avx-avx512-linux.
(i386/x32-avx-mpx-avx512): Rename to...
(i386/x32-avx-avx512): ...this.
(i386/x32-avx-mpx-avx512-linux): Rename to...
(i386/x32-avx-avx512-linux): ...this.
(i386/i386-avx-avx512-expedite, i386/i386-avx-avx512-linux-expedite,
i386/amd64-avx-avx512-expedite, i386/amd64-avx-avx512-linux-expedite):
New expedites.
(i386/x32-avx-mpx-avx512-expedite): Rename to...
(i386/x32-avx-avx512-expedite): ...this.
(i386/x32-avx-mpx-avx512-linux-expedite): Rename to...
(i386/x32-avx-avx512-linux-expedite): ...this.
(XMLTOC): New XML files i386/amd64-avx-avx512-linux.xml,
i386/amd64-avx-avx512.xml, i386/i386-avx-avx512-linux.xml,
i386/i386-avx-avx512.xml.
(i386/x32-avx-mpx-avx512-linux.xml): Rename to...
(i386/x32-avx-avx512-linux.xml): ...this.
(i386/x32-avx-mpx-avx512.xml): Rename to...
(i386/x32-avx-avx512.xml): ...this.
($(outdir)/i386/i386-avx-avx512.dat): New rule.
($(outdir)/i386/i386-avx-avx512-linux.dat): Likewise.
($(outdir)/i386/amd64-avx-avx512.dat): Likewise.
($(outdir)/i386/amd64-avx-avx512-linux.dat): Likewise.
($(outdir)/i386/x32-avx-mpx-avx512.dat): Rename to...
($(outdir)/i386/x32-avx-avx512.dat): ...this.
($(outdir)/i386/x32-avx-mpx-avx512-linux.dat): Rename to...
($(outdir)/i386/x32-avx-avx512-linux.dat): ...this.
* features/i386/amd64-avx-avx512-linux.c: New file.
* features/i386/amd64-avx-avx512-linux.xml: Likewise.
* features/i386/amd64-avx-avx512.c: Likewise.
* features/i386/amd64-avx-avx512.xml: Likewise.
* features/i386/i386-avx-avx512-linux.c: Likewise.
* features/i386/i386-avx-avx512-linux.xml: Likewise.
* features/i386/i386-avx-avx512.c: Likewise.
* features/i386/i386-avx-avx512.xml: Likewise.
* features/i386/x32-avx-mpx-avx512-linux.c: Deleted.
* features/i386/x32-avx-avx512-linux.c: New file.
* features/i386/x32-avx-mpx-avx512-linux.xml: Deleted.
* features/i386/x32-avx-avx512-linux.xml: New file.
* features/i386/x32-avx-mpx-avx512.c: Deleted.
* features/i386/x32-avx-avx512.c: New file.
* features/i386/x32-avx-mpx-avx512.xml: Deleted.
* features/i386/x32-avx-avx512.xml: New file.
* i386-linux-tdep.c (features/i386/i386-avx-avx512-linux.c): New include.
(i386_linux_core_read_description): Add dedicated case for
X86_XSTATE_AVX_AVX512_MASK and return appropriate tdesc.
(_initialize_i386_linux_tdep): Add call to
initialize_tdesc_i386_avx_avx512_linux.
* i386-linux-tdep.h (tdesc_i386_avx_avx512_linux): New prototype.
* i386-tdep.c (features/i386/i386-avx-avx512.c): New include.
(i386_validate_tdesc_p): Correct XSTATE mask used for feature_avx512.
(i386_target_description): Add dedicated case for
X86_XSTATE_AVX_AVX512_MASK and return appropriate tdesc.
(_initialize_i386_tdep): Add call to initialize_tdesc_i386_avx_avx512.
* regformats/i386/amd64-avx-avx512-linux.dat: New file
* regformats/i386/amd64-avx-avx512.dat: Likewise.
* regformats/i386/i386-avx-avx512-linux.dat: Likewise.
* regformats/i386/i386-avx-avx512.dat: Likewise.
* regformats/i386/x32-avx-mpx-avx512-linux.dat: Deleted.
* regformats/i386/x32-avx-avx512-linux.dat: New file.
* regformats/i386/x32-avx-mpx-avx512.dat: Deleted.
* regformats/i386/x32-avx-avx512.dat: New file.
* x86-linux-nat.c (x86_linux_read_description): Add dedidated case for
X86_XSTATE_AVX_AVX512_MASK and return appropriate description.
gdbserver/Changelog:
2016-04-18 Michael Sturm <michael.sturm@intel.com>
* Makefile.in (clean): Add handling of new source files
i386-avx-avx512.c, i386-avx-avx512-linux.c, amd64-avx-avx512.c,
amd64-avx-avx512-linux.c.
(x32-avx-mpx-avx512.c): Rename to...
(x32-avx-avx512.c): ...this.
(x32-avx-mpx-avx512-linux.c): Rename to...
(x32-avx-avx512-linux.c): ...this.
(i386-avx-avx512-linux-ipa.o): New rule.
(amd64-avx-avx512-linux-ipa.o): Likewise.
(i386-avx-avx512.c): Likewise.
(i386-avx-avx512-linux.c): Likewise.
(amd64-avx-avx512.c): Likewise.
(amd64-avx-avx512-linux.c): Likewise.
(x32-avx-avx512.c): Rename rule, source files, dat files from
x32-avx-mpx-avx512.*) to this.
(x32-avx-avx512-linux.c): Rename rule, source files, dat files from
x32-avx-mpx-avx512-linux.*) to this.
* configure.srv (srv_i386_regobj): Add i386-avx-avx512.o.
(srv_i386_linux_regobj): Add i386-avx-avx512-linux.o.
(srv_amd64_regobj): Add amd64-avx-avx512.o, rename
x32-avx-mpx-avx512.o to x32-avx-avx512.o.
(srv_amd64_linux_regobj): Add amd64-avx-avx512-linux.o, rename
x32-avx-mpx-avx512-linux.o to x32-avx-avx512-linux.o.
(ipa_i386_linux_regobj): Add i386-avx-avx512-linux-ipa.o.
(ipa_amd64_linux_regobj): Add amd64-avx-avx512-linux-ipa.o.
(srv_i386_xmlfiles): Add i386/i386-avx-avx512.xml.
(srv_amd64_xmlfiles): Add i386/amd64-avx-avx512.xml, rename
x32-avx-mpx-avx512.xml to x32-avx-avx512.xml.
(srv_i386_linux_xmlfiles): Add i386/i386-avx-avx512-linux.xml.
(srv_amd64_linux_xmlfiles): Add i386/amd64-avx-avx512-linux.xml,
rename x32-avx-mpx-avx512-linux.xml to x32-avx-avx512-linux.xml.
* linux-amd64-ipa.c (get_ipa_tdesc): Add dedicated case for
X86_TDESC_AVX_AVX512 and return appropriate tdesc.
(initialize_low_tracepoint): Add init_registers_amd64_avx_avx512_linux.
* linux-i386-ipa.c (get_ipa_tdesc): Add dedicated case for
X86_TDESC_AVX_AVX512 and return appropriate tdesc.
(initialize_low_tracepoint): Add init_registers_i386_avx_avx512_linux.
* linux-x86-low.c (x86_linux_read_description): Add dedicated cases for
X86_XSTATE_AVX_AVX512_MASK and return appropriate tdesc.
(x86_get_ipa_tdesc_idx): Rename tdesc_x32_avx_mpx_avx512_linux to
tdesc_x32_avx_avx512_linux, add dedicated if-clause for
tdesc_amd64_avx_avx512_linux and return appropriate mask.
Add dedicated clause for tdesc_i386_avx_avx512_linux
and return appropriate mask.
(initialize_low_arch): Add init_registers_amd64_avx_avx512_linux,
rename init_registers_x32_avx_mpx_avx512_linux, add
init_registers_i386_avx_avx512_linux.
* linux-x86-tdesc.h (enum x86_linux_tdesc): Add new value for
X86_TDESC_AVX_AVX512.
(init_registers_amd64_avx_avx512_linux): New prototype.
(tdesc_amd64_avx_avx512_linux): Likewise.
(init_registers_x32_avx_mpx_avx512_linux): Rename to...
(init_registers_x32_avx_avx512_linux): ...this.
(tdesc_x32_avx_mpx_avx512_linux): Rename to...
(tdesc_x32_avx_avx512_linux): ...this.
(init_registers_i386_avx_avx512_linux): New prototype.
(tdesc_i386_avx_avx512_linux): Likewise.
Change-Id: I01359fab56c961a39568df50af39714ec7b31706
Signed-off-by: Michael Sturm <michael.sturm@intel.com>
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|
To better reflect the actual feature set covered by the IA target
descriptions, the existing descriptions are renamed. Each feature of
the extended state is added to the name of a description or xstate mask
starting from AVX.
For example, amd64-mpx-avx512-linux becomes amd64-avx-mpx-avx512-linux,
while amd64-avx-linux remains unchanged.
Likewise, the corresponding xstate masks are changed, e.g. from
X86_XSTATE_MPX_AVX512_MASK to X86_XSTATE_AVX_MPX_AVX512_MASK.
gdb/Changelog:
2016-04-18 Michael Sturm <michael.sturm@intel.com>
* amd64-linux-tdep.c (features/i386/amd64-avx512-linux.c): Rename
include to...
(features/i386/amd64-avx-mpx-avx512-linux.c): ...this.
(features/i386/x32-avx512-linux.c): Rename include to...
(features/i386/x32-avx-mpx-avx512-linux.c): ...this.
(amd64_linux_core_read_description): Rename X86_XSTATE_MPX_AVX512_MASK,
X86_XSTATE_AVX512_MASK, desc_x32_avx512_linux, tdesc_amd64_avx512_linux.
(_initialize_amd64_linux_tdep): Rename
initialize_tdesc_amd64_avx512_linux, initialize_tdesc_x32_avx512_linux.
* amd64-linux-tdep.h (tdesc_amd64_avx512_linux): Rename to...
(tdesc_amd64_avx_mpx_avx512_linux): ...this.
(tdesc_x32_avx512_linux): Rename to...
(tdesc_x32_avx_mpx_avx512_linux): ...this.
* amd64-tdep.c (features/i386/amd64-avx512.c): Rename include to...
(features/i386/amd64-avx-mpx-avx512.c): ...this.
(features/i386/x32-avx512.c): Rename include to...
(features/i386/x32-avx-mpx-avx512.c): ...this.
(amd64_target_description): Rename X86_XSTATE_MPX_AVX512_MASK,
X86_XSTATE_AVX512_MASK, tdesc_amd64_avx512.
(_initialize_amd64_tdep): Rename initialize_tdesc_amd64_avx512. Rename
initialize_tdesc_x32_avx512.
* common/x86-xstate.h (X86_XSTATE_AVX512_MASK): Rename to...
(X86_XSTATE_AVX_AVX512_MASK): ...this.
(86_XSTATE_MPX_AVX512_MASK): Rename to...
(X86_XSTATE_AVX_MPX_AVX512_MASK): ...this.
(X86_XSTATE_ALL_MASK): Rename X86_XSTATE_MPX_AVX512_MASK to
X86_XSTATE_AVX_MPX_AVX512_MASK.
* features/Makefile (WHICH): Rename i386/i386-avx512,
i386/i386-avx512-linux, i386/amd64-avx512, i386/amd64-avx512-linux,
i386/x32-avx512, i386/x32-avx512-linux.
(i386/i386-avx512-expedite, i386/i386-avx512-linux-expedite,
i386/amd64-avx512-expedite, i386/amd64-avx512-linux-expedite,
i386/x32-avx512-expedite, i386/x32-avx512-linux-expedite): Rename
expedites.
(XMLTOC): Rename i386/amd64-avx512-linux.xml, i386/amd64-avx512.xml,
i386/i386-avx512-linux.xml, i386/i386-avx512.xml,
i386/x32-avx512-linux.xml, i386/x32-avx512.xml.
($(outdir)/i386/i386-avx512.dat): Rename dat file in rule.
($(outdir)/i386/i386-avx512-linux.dat): Likewise.
($(outdir)/i386/amd64-avx512.dat): Likewise.
($(outdir)/i386/amd64-avx512-linux.dat): Likewise.
($(outdir)/i386/x32-avx512.dat): Likewise.
($(outdir)/i386/x32-avx512-linux.dat): Likewise.
* features/i386/amd64-avx512-linux.c: Regenerate from renamed XML file.
* features/i386/amd64-avx512-linux.xml: Rename XML file.
* features/i386/amd64-avx512.c: Regenerate from renamed XML file.
* features/i386/amd64-avx512.xml: Rename XML file.
* features/i386/i386-avx512-linux.c: Regenerate from renamed XML file.
* features/i386/i386-avx512-linux.xml: Rename XML file.
* features/i386/i386-avx512.c: Regenerate from renamed XML file.
* features/i386/i386-avx512.xml: Rename XML file.
* features/i386/x32-avx512-linux.c: Regenerate from renamed XML file.
* features/i386/x32-avx512-linux.xml: Rename XML file.
* features/i386/x32-avx512.c: Regenerate from renamed XML file.
* features/i386/x32-avx512.xml: Rename XML file.
* i386-linux-tdep.c (features/i386/i386-avx512-linux.c): Rename to...
(features/i386/i386-avx-mpx-avx512-linux.c): ...this.
(i386_linux_core_read_description): Rename X86_XSTATE_MPX_AVX512_MASK,
X86_XSTATE_AVX512_MASK, tdesc_i386_avx512_linux.
(_initialize_i386_linux_tdep): Rename initialize_tdesc_i386_avx512_linux.
* i386-linux-tdep.h (tdesc_i386_avx512_linux): Rename to...
(tdesc_i386_avx_mpx_avx512_linux): ...this.
* i386-tdep.c (features/i386/i386-avx512.c): Rename to...
(features/i386/i386-avx-mpx-avx512.c): ...this.
(i386_register_reggroup_p): Rename X86_XSTATE_AVX512_MASK.
(i386_validate_tdesc_p): Likewise.
(i386_target_description): Rename X86_XSTATE_MPX_AVX512_MASK,
tdesc_i386_avx512.
(_initialize_i386_tdep): Rename initialize_tdesc_i386_avx512.
* regformats/i386/amd64-avx512-linux.dat: Regenerate from renamed XML
file.
* regformats/i386/amd64-avx512.dat: Likewise.
* regformats/i386/i386-avx512-linux.dat: Likewise.
* regformats/i386/i386-avx512.dat: Likewise.
* regformats/i386/x32-avx512-linux.dat: Likewise.
* regformats/i386/x32-avx512.dat: Likewise.
* x86-Linux-nat.c (x86_linux_read_description): Rename
X86_XSTATE_MPX_AVX512_MASK, X86_XSTATE_AVX512_MASK,
tdesc_x32_avx512_linux, tdesc_amd64_avx512_linux, tdesc_i386_avx512_linux.
gdbserver/Changelog:
2016-04-18 Michael Sturm <michael.sturm@intel.com>
* Makefile.in (clean): Rename i386-avx512.c, i386-avx512-linux.c,
amd64-avx512.c, amd64-avx512-linux.c, x32-avx512.c, x32-avx512-linux.c.
(i386-avx512-linux-ipa.o): Rename rule and source files.
(amd64-avx512-linux-ipa.o): Likewise.
(i386-avx512.c): Rename rule, source fils and dat files.
(i386-avx512-linux.c): Likewise.
(amd64-avx512.c): Likewise.
(amd64-avx512-linux.c): Likewise.
(x32-avx512.c): Likewise.
(x32-avx512-linux.c): Likewise.
* configfure.srv (srv_i386_regobj): Rename i386-avx512.o.
(i386_linux_regobj): Rename i386-avx512-linux.o.
(srv_amd64_regobj): Rename amd64-avx512.o, x32-avx512.o.
(srv_amd64_linux_regobj): Rename amd64-avx512-linux.o,
x32-avx512-linux.o.
(ipa_i386_linux_regobj): Rename i386-avx512-linux-ipa.o.
(ipa_amd64_linux_regobj): Rename amd64-avx512-linux-ipa.o.
(srv_i386_xmlfiles): Rename i386/i386-avx512.xml.
(srv_amd64_xmlfiles): Rename i386/amd64-avx512.xml, i386/x32-avx512.xml.
(srv_i386_linux_xmlfiles): Rename i386/i386-avx512-linux.xml.
(srv_amd64_linux_xmlfiles): Rename i386/amd64-avx512-linux.xml,
i386/x32-avx512-linux.xml).
* linux-amd64-ipa.c (get_ipa_tdesc): Rename X86_TDESC_AVX512 and returned
tdesc for that case.
(initialize_low_tracepoint): Rename init_registers_amd64_avx512_linux.
* linux-i386-ipa.c (get_ipa_tdesc): Rename X86_TDESC_AVX512 and tdesc
returned for that case.
(initialize_low_tracepoint): Rename init_registers_i386_avx512_linux.
* linux-x86-low.c (x86_linux_read_description): Rename
X86_XSTATE_AVX512_MASK and tdesc returned for that case.
(x86_get_ipa_tdesc_idx): Rename tdesc_amd64_avx512_linux,
tdesc_x32_avx512_linux and mask returned for these descriptions.
Rename tdesc_i386_avx512_linux and mask returned for that description.
(initialize_low_arch): Rename init_registers_amd64_avx512_linux,
init_registers_x32_avx512_linux, init_registers_i386_avx512_linux.
* linux-x86-tdesc.h (enum x86_linux_tdesc): Rename X86_TDESC_AVX512.
(init_registers_amd64_avx512_linux): Rename to...
(init_registers_amd64_avx_mpx_avx512_linux): ...this.
(tdesc_amd64_avx512_linux): Rename to...
(tdesc_amd64_avx_mpx_avx512_linux): ...this.
(init_registers_x32_avx512_linux): Rename to...
(init_registers_x32_avx_mpx_avx512_linux): ...this.
(tdesc_x32_avx512_linux): Rename to...
(tdesc_x32_avx_mpx_avx512_linux): ...this.
(init_registers_i386_avx512_linux): Rename to...
(init_registers_i386_avx_mpx_avx512_linux): ...this.
(tdesc_i386_avx512_linux): Rename to...
(tdesc_i386_avx_mpx_avx512_linux): ...this.
Change-Id: Idb83be3b3b72d5487542d4b568193df2777a3d9d
Signed-off-by: Michael Sturm <michael.sturm@intel.com>
|
|
This patch allows examination of the registers FS_BASE and GS_BASE
for Linux Systems running on 64bit. Tests for simple read and write
of the new registers is also added with this patch.
2017-01-27 Walfred Tedeschi <walfred.tedeschi@intel.com>
Richard Henderson <rth@redhat.com>
gdb/ChangeLog:
* amd64-linux-nat.c (PTRACE_ARCH_PRCTL): New define.
(amd64_linux_fetch_inferior_registers): Add case to fetch FS_BASE
GS_BASE for older kernels.
(amd64_linux_store_inferior_registers): Add case to store FS_BASE
GS_BASE for older kernels.
* amd64-linux-tdep.c (amd64_linux_gregset_reg_offset): Add FS_BASE
and GS_BASE to the offset table.
(amd64_linux_register_reggroup_p): Add FS_BASE and GS_BASE to the
system register group.
* amd64-nat.c (amd64_native_gregset_reg_offset): Implements case
for older kernels.
* amd64-tdep.c (amd64_init_abi): Add segment registers for the
amd64 ABI.
* amd64-tdep.h (amd64_regnum): Add AMD64_FSBASE_REGNUM and
AMD64_GSBASE_REGNUM.
(AMD64_NUM_REGS): Set to AMD64_GSBASE_REGNUM + 1.
* features/Makefile (amd64-linux.dat, amd64-avx-linux.dat)
(amd64-mpx-linux.dat, amd64-avx512-linux.dat, x32-linux.dat)
(x32-avx-linux.dat, x32-avx512-linux.dat): Add
i386/64bit-segments.xml in those rules.
* features/i386/64bit-segments.xml: New file.
* features/i386/amd64-avx-mpx-linux.xml: Add 64bit-segments.xml.
* features/i386/amd64-avx-linux.xml: Add 64bit-segments.xml.
* features/i386/amd64-avx512-linux.xml: Add 64bit-segments.xml.
* features/i386/amd64-mpx-linux.xml: Add 64bit-segments.xml.
* features/i386/x32-avx512-linux.xml: Add 64bit-segments.xml.
* features/i386/x32-avx-linux.xml: Add 64bit-segments.xml.
* features/i386/amd64-linux.xml: Add 64bit-segments.xml.
* features/i386/amd64-avx-linux.c: Regenerated.
* features/i386/amd64-avx-mpx-linux.c: Regenerated.
* features/i386/amd64-avx-mpx.c: Regenerated.
* features/i386/amd64-avx512-linux.c: Regenerated.
* features/i386/amd64-linux.c: Regenerated.
* features/i386/amd64-mpx-linux.c: Regenerated.
* features/i386/i386-avx-mpx-linux.c: Regenerated.
* features/i386/i386-avx-mpx.c: Regenerated.
* features/i386/x32-avx-linux.c: Regenerated.
* features/i386/x32-avx512-linux.c: Regenerated.
* regformats/i386/amd64-avx-linux.dat: Regenerated.
* regformats/i386/amd64-avx-mpx-linux.dat: Regenerated.
* regformats/i386/amd64-avx512-linux.dat: Regenerated.
* regformats/i386/amd64-linux.dat: Regenerated.
* regformats/i386/amd64-mpx-linux.dat: Regenerated.
* regformats/i386/x32-avx-linux.dat: Regenerated.
* regformats/i386/x32-avx512-linux.dat: Regenerated.
* regformats/i386/x32-linux.dat: Regenerated.
gdb/doc/ChangeLog:
* gdb.texinfo (i386 Features): Add system segment registers
as feature.
gdb/gdbserver/ChangeLog:
* linux-x86-low.c (x86_64_regmap): Add fs_base and gs_base
to the register table.
(x86_fill_gregset): Add support for old kernels for the
fs_base and gs_base system registers.
(x86_store_gregset): Likewise.
* configure.srv (srv_i386_64bit_xmlfiles): Add 64bit-segments.xml.
gdb/testsuite/ChangeLog:
* gdb.arch/amd64-gs_base.c: New file.
* gdb.arch/amd64-gs_base.exp: New file.
Change-Id: I2e0eeb93058a2320d4d3b045082643cfe4aff963
Signed-off-by: Walfred Tedeschi <walfred.tedeschi@intel.com>
|
|
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.
gdb/ChangeLog:
Update copyright year range in all GDB files.
|
|
If I remove all regformats/*.dat files and run
make GDB=/scratch/yao/gdb/build-git/all-targets/gdb/gdb all, some
powerpc .dat files are not generated.
This patch fixes it by adding them to WHICH, so these .dat files can
be generated.
gdb:
2016-10-05 Yao Qi <yao.qi@linaro.org>
* features/Makefile (WHICH): Add
rs6000/powerpc-isa205-32l, rs6000/powerpc-isa205-64l,
rs6000/powerpc-isa205-altivec32l, rs6000/powerpc-isa205-altivec64l,
rs6000/powerpc-isa205-vsx32l and rs6000/powerpc-isa205-vsx64l.
* regformats/rs6000/powerpc-isa205-32l.dat: Regenerated.
* regformats/rs6000/powerpc-isa205-64l.dat: Likewise.
* regformats/rs6000/powerpc-isa205-altivec32l.dat: Likewise.
* regformats/rs6000/powerpc-isa205-altivec64l.dat: Likewise.
* regformats/rs6000/powerpc-isa205-vsx32l.dat: Likewise.
* regformats/rs6000/powerpc-isa205-vsx64l.dat: Likewise.
|
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This patch is move features/arm-*.xml to features/arm/, and it is based
on Terry's patch posted here
https://sourceware.org/ml/gdb-patches/2014-06/msg00794.html
One comment to Terry's patch is about losing "arm" prefix, and the new
patch fixes this problem.
gdb:
2016-10-05 Terry Guo <terry.guo@arm.com>
Yao Qi <yao.qi@linaro.org>
* arm-tdep.c: Adjust includes.
* features/Makefile (WHICH): Add "arm/" directory to arm
target descriptions.
(XMLTOC): Likewise.
(arm/arm-with-iwmmxt.dat): Adjust the path for
dependencies.
* features/arm-core.xml: Moved to ...
* features/arm/arm-core.xml: ... it.
* features/arm-fpa.xml: Moved to ...
* features/arm/arm-fpa.xml: ... it.
* features/arm-m-profile.xml: Moved to ...
* features/arm/arm-m-profile.xm: ... it.
* features/arm-vfpv2.xml: Moved to ...
* features/arm/arm-vfpv2.xm: ... it.
* features/arm-vfpv3.xml: Moved to ...
* features/arm/arm-vfpv3.xml: ... it.
* features/arm-with-iwmmxt.c: Moved to ...
* features/arm/arm-with-iwmmxt.c: ... it.
* features/arm-with-iwmmxt.xml: Moved to ...
* features/arm/arm-with-iwmmxt.xml: ... it.
* features/arm-with-m-fpa-layout.c: Moved to ...
* features/arm/arm-with-m-fpa-layout.c: ... it.
* features/arm-with-m-fpa-layout.xml: Moved to ...
* features/arm/arm-with-m-fpa-layout.xml: ... it.
* features/arm-with-m-vfp-d16.c: Moved to ...
* features/arm/arm-with-m-vfp-d16.c: ... it.
* features/arm-with-m-vfp-d16.xml: Moved to ...
* features/arm/arm-with-m-vfp-d16.xml: ... it.
* features/arm-with-m.c: Moved to ...
* features/arm/arm-with-m.c: ... it.
* features/arm-with-m.xml: Moved to ...
* features/arm/arm-with-m.xm: ... it.
* features/arm-with-neon.c: Moved to ...
* features/arm/arm-with-neon.c: ... it.
* features/arm-with-neon.xml: Moved to ...
* features/arm/arm-with-neon.xml: ... it.
* features/arm-with-vfpv2.c: Moved to ...
* features/arm/arm-with-vfpv2.c: ... it.
* features/arm-with-vfpv2.xml: Moved to ...
* features/arm/arm-with-vfpv2.xml: ... it.
* features/arm-with-vfpv3.c: Moved to ...
* features/arm/arm-with-vfpv3.c: ... it.
* features/arm-with-vfpv3.xml: Moved to ...
* features/arm/arm-with-vfpv3.xml: ... it.
* features/xscale-iwmmxt.xml: Moved to ...
* features/arm/xscale-iwmmxt.xml: ... it.
gdb/gdbserver:
2016-10-05 Terry Guo <terry.guo@arm.com>
Yao Qi <yao.qi@linaro.org>
* Makefile.in: Adjust the path of rules.
* configure.srv: Update the path of xml files.
* regformats/arm-with-iwmmxt.dat: Regenerated.
* regformats/arm-with-neon.dat: Likewise.
* regformats/arm-with-vfpv2.dat: Likewise.
* regformats/arm-with-vfpv3.dat Likewise.
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|
In the previous patch a new set of target descriptions
(i386|amd64)-avx-mpx were added being same as the (i386|amd64)-mpx.
This patch removes AVX feature from (i386|amd64)-mpx target
description set.
This way the (i386|amd64)avx_mpx(_linux|) set has AVX and MPX features
and (i386|amd64)mpx(_linux|) only MPX.
2016-04-14 Walfred Tedeschi <walfred.tedeschi@intel.com>
* features/i386/amd64-mpx-linux.xml: Remove AVX feature.
* features/i386/amd64-mpx.xml: Remove AVX feature.
* features/i386/i386-mpx-linux.xml: Remove AVX feature.
* features/i386/i386-mpx.xml: Remove AVX feature.
* features/i386/amd64-mpx-linux.c: Regenerate.
* features/i386/amd64-mpx.c: Regenerate.
* features/i386/i386-mpx-linux.c: Regenerate.
* features/i386/i386-mpx.c: Regenerate.
* regformats/i386/amd64-mpx-linux.dat: Regenerate.
* regformats/i386/amd64-mpx.dat: Regenerate.
* regformats/i386/i386-mpx-linux.dat: Regenerate.
* regformats/i386/i386-mpx.dat: Regenerate.
|
|
The current MPX target descriptions assume that MPX is always combined
with AVX, however that's not correct. We can have machines with MPX
and without AVX; or machines with AVX and without MPX.
This patch adds new target descriptions for machines that support
both MPX and AVX, as duplicates of the existing MPX descriptions.
The following commit will remove AVX from the MPX-only descriptions.
2016-04-16 Walfred Tedeschi <walfred.tedeschi@intel.com>
gdb/ChangeLog:
* amd64-linux-tdep.c (features/i386/amd64-avx-mpx-linux.c):
New include.
(amd64_linux_core_read_description): Add case for
X86_XSTATE_AVX_MPX_MASK.
(_initialize_amd64_linux_tdep): Call initialize_tdesc_amd64_avx_mpx_linux.
* amd64-linux-tdep.h (tdesc_amd64_avx_mpx_linux): New definition.
* amd64-tdep.c (features/i386/amd64-avx-mpx.c): New include.
(amd64_target_description): Add case for X86_XSTATE_AVX_MPX_MASK.
(_initialize_amd64_tdep): Call initialize_tdesc_amd64_avx_mpx.
* common/x86-xstate.h (X86_XSTATE_MPX_MASK): Remove AVX bits.
(X86_XSTATE_AVX_MPX_MASK): New case.
* features/Makefile (i386/i386-avx-mpx, i386/i386-avx-mpx-linux)
(i386/amd64-avx-mpx, i386/amd64-avx-mpx-linux): New rules.
(i386/i386-avx-mpx-expedite, i386/i386-avx-mpx-linux-expedite)
(i386/amd64-avx-mpx-expedite, i386/amd64-avx-mpx-linux-expedite):
New expedites.
* i386-linux-tdep.c (features/i386/i386-avx-mpx-linux.c): New
include.
(i386_linux_core_read_description): Add case
X86_XSTATE_AVX_MPX_MASK.
(_initialize_i386_linux_tdep): Call
initialize_tdesc_i386_avx_mpx_linux.
* i386-linux-tdep.h (tdesc_i386_avx_mpx_linux): New include.
* i386-tdep.c (features/i386/i386-avx-mpx.c): New include.
(i386_target_description): Add case for X86_XSTATE_AVX_MPX_MASK.
* x86-linux-nat.c (x86_linux_read_description): Add case for
X86_XSTATE_AVX_MPX_MASK.
* features/i386/amd64-avx-mpx-linux.xml: New file.
* features/i386/i386-avx-mpx-linux.xml: New file.
* features/i386/i386-avx-mpx.xml: New file.
* features/i386/amd64-avx-mpx.xml: New file.
* features/i386/amd64-avx-mpx-linux.c: Generated.
* features/i386/amd64-avx-mpx.c: Generated.
* features/i386/i386-avx-mpx-linux.c: Generated.
* features/i386/i386-avx-mpx.c: Generated.
* regformats/i386/amd64-avx-mpx-linux.dat: Generated.
* regformats/i386/amd64-avx-mpx.dat: Generated.
* regformats/i386/i386-avx-mpx-linux.dat: Generated.
* regformats/i386/i386-avx-mpx.dat: Generated.
gdb/gdbserver/ChangeLog:
* Makefile.in (clean): Add removal for i386-avx-mpx.c,
i386-avx-mpx-linux.c, amd64-avx-mpx.c and amd64-avx-mpx-linux.c.
(i386-avx-mpx.c, i386-avx-mpx-linux.c, amd64-avx-mpx.c)
(amd64-avx-mpx-linux.c): New rules.
(amd64-avx-mpx-linux-ipa.o, i386-avx-mpx-linux-ipa.o): New rule.
* configure.srv (srv_i386_regobj): Add i386-avx-mpx.o.
(srv_i386_linux_regobj): Add i386-avx-mpx-linux.o.
(srv_amd64_regobj): Add amd64-avx-mpx.o.
(srv_amd64_linux_regobj): Add amd64-avx-mpx-linux.o.
(srv_i386_xmlfiles): Add i386/i386-avx-mpx.xml.
(srv_amd64_xmlfiles): Add i386/amd64-avx-mpx.xml.
(srv_i386_linux_xmlfiles): Add i386/i386-avx-mpx-linux.xml.
(srv_amd64_linux_xmlfiles): Add i386/amd64-avx-mpx-linux.xml.
(ipa_i386_linux_regobj): Add i386-avx-mpx-linux-ipa.o.
(ipa_amd64_linux_regobj): Add amd64-avx-mpx-linux-ipa.o.
* linux-x86-low.c (x86_linux_read_description): Add case for
X86_XSTATE_AVX_MPX_MASK.
(x86_get_ipa_tdesc_idx): Add cases for avx_mpx.
(initialize_low_arch): Call init_registers_amd64_avx_mpx_linux and
init_registers_i386_avx_mpx_linux.
* linux-i386-ipa.c (get_ipa_tdesc): Add case for avx_mpx.
(initialize_low_tracepoint): Call
init_registers_i386_avx_mpx_linux.
* linux-amd64-ipa.c (get_ipa_tdesc): Add case for avx_mpx.
(initialize_low_tracepoint): Call
init_registers_amd64_avx_mpx_linux.
* linux-x86-tdesc.h (X86_TDESC_AVX_MPX): New enum value.
(init_registers_amd64_avx_mpx_linux, tdesc_amd64_avx_mpx_linux)
(init_registers_i386_avx_mpx_linux, tdesc_i386_avx_mpx_linux): New
declarations.
|
|
gdb/ChangeLog:
Update year range in copyright notice of all files.
|
|
The IBM z13 has new vector registers v0-v31 which are presented by the
Linux kernel as two additional register sets. This patch adds XML
descriptions and the respective autogenerated .c and .dat files for
S390 targets with this feature. Note that supported combinations
include targets with and without a transactional execution facility.
gdb/ChangeLog:
* features/s390-tevx-linux64.xml: New file.
* features/s390-vx-linux64.xml: New file.
* features/s390-vx.xml: New file.
* features/s390x-tevx-linux64.xml: New file.
* features/s390x-vx-linux64.xml: New file.
* features/Makefile (WHICH): Add s390-vx-linux64,
s390x-vx-linux64, s390-tevx-linux64, and s390x-tevx-linux64.
(s390-vx-linux64-expedite, s390-tevx-linux64-expedite)
(s390x-vx-linux64-expedite, s390x-tevx-linux64-expedite): New
macros.
* features/s390-tevx-linux64.c: New generated file.
* features/s390-vx-linux64.c: Likewise.
* features/s390x-tevx-linux64.c: Likewise.
* features/s390x-vx-linux64.c: Likewise.
* regformats/s390-tevx-linux64.dat: Likewise.
* regformats/s390-vx-linux64.dat: Likewise.
* regformats/s390x-tevx-linux64.dat: Likewise.
* regformats/s390x-vx-linux64.dat: Likewise.
gdb/doc/ChangeLog:
* gdb.texinfo (S/390 and System z Features): Describe new feature
"org.gnu.gdb.s390.vx".
|
|
gdb/ChangeLog:
Update year range in copyright notice of all files.
|
|
Fix a typo in the expedited registers for s390-te-linux64.
gdb/ChangeLog:
* features/Makefile (s390-te-linux64-expedite): Replace
non-existant r14 and r15 by r14l and r15l, respectively.
* regformats/s390-te-linux64.dat: Regenerate.
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|
This file:
- Isn't used by GDBserver currently.
- Isn't included in the WHICH list in features/Makefile, so hasn't
been regenerated to pick the latest microblaze or generic fixes.
Just delete it.
gdb/
2014-10-15 Pedro Alves <palves@redhat.com>
* regformats/microblaze.dat: Delete file.
|
|
The Microblaze PC register is called "rpc", not "pc", as can be seen
in microblaze-core.xml. Fix this, so GDBserver can find the register in
the regcache.
gdb/
2014-10-15 Ajit Agarwal <ajitkum@xilinx.com>
* features/Makefile (microblaze-expedite): Replace pc with rpc.
* regformats/microblaze-with-stack-protect.dat: Regenerate.
|
|
We have read-only markers in most generated sources already, so that
Emacs/Vi users won't edit them accidentally, but were missing them on
the generated gdb/regformats/ .dat files.
gdb/
2014-10-01 Pedro Alves <palves@redhat.com>
* features/Makefile ($(outdir)/%.dat): Output "THIS FILE IS
GENERATED" along with emacs/vi read-only markers.
* regformats/aarch64.dat: Regenerate.
* regformats/arm-with-iwmmxt.dat: Regenerate.
* regformats/arm-with-neon.dat: Regenerate.
* regformats/arm-with-vfpv2.dat: Regenerate.
* regformats/arm-with-vfpv3.dat: Regenerate.
* regformats/i386/amd64-avx-linux.dat: Regenerate.
* regformats/i386/amd64-avx.dat: Regenerate.
* regformats/i386/amd64-avx512-linux.dat: Regenerate.
* regformats/i386/amd64-avx512.dat: Regenerate.
* regformats/i386/amd64-linux.dat: Regenerate.
* regformats/i386/amd64-mpx-linux.dat: Regenerate.
* regformats/i386/amd64-mpx.dat: Regenerate.
* regformats/i386/amd64.dat: Regenerate.
* regformats/i386/i386-avx-linux.dat: Regenerate.
* regformats/i386/i386-avx.dat: Regenerate.
* regformats/i386/i386-avx512-linux.dat: Regenerate.
* regformats/i386/i386-avx512.dat: Regenerate.
* regformats/i386/i386-linux.dat: Regenerate.
* regformats/i386/i386-mmx-linux.dat: Regenerate.
* regformats/i386/i386-mmx.dat: Regenerate.
* regformats/i386/i386-mpx-linux.dat: Regenerate.
* regformats/i386/i386-mpx.dat: Regenerate.
* regformats/i386/i386.dat: Regenerate.
* regformats/i386/x32-avx-linux.dat: Regenerate.
* regformats/i386/x32-avx.dat: Regenerate.
* regformats/i386/x32-avx512-linux.dat: Regenerate.
* regformats/i386/x32-avx512.dat: Regenerate.
* regformats/i386/x32-linux.dat: Regenerate.
* regformats/i386/x32.dat: Regenerate.
* regformats/microblaze-with-stack-protect.dat: Regenerate.
* regformats/mips-dsp-linux.dat: Regenerate.
* regformats/mips-linux.dat: Regenerate.
* regformats/mips64-dsp-linux.dat: Regenerate.
* regformats/mips64-linux.dat: Regenerate.
* regformats/nios2-linux.dat: Regenerate.
* regformats/rs6000/powerpc-32.dat: Regenerate.
* regformats/rs6000/powerpc-32l.dat: Regenerate.
* regformats/rs6000/powerpc-64l.dat: Regenerate.
* regformats/rs6000/powerpc-altivec32l.dat: Regenerate.
* regformats/rs6000/powerpc-altivec64l.dat: Regenerate.
* regformats/rs6000/powerpc-cell32l.dat: Regenerate.
* regformats/rs6000/powerpc-cell64l.dat: Regenerate.
* regformats/rs6000/powerpc-e500l.dat: Regenerate.
* regformats/rs6000/powerpc-vsx32l.dat: Regenerate.
* regformats/rs6000/powerpc-vsx64l.dat: Regenerate.
* regformats/s390-linux32.dat: Regenerate.
* regformats/s390-linux32v1.dat: Regenerate.
* regformats/s390-linux32v2.dat: Regenerate.
* regformats/s390-linux64.dat: Regenerate.
* regformats/s390-linux64v1.dat: Regenerate.
* regformats/s390-linux64v2.dat: Regenerate.
* regformats/s390-te-linux64.dat: Regenerate.
* regformats/s390x-linux64.dat: Regenerate.
* regformats/s390x-linux64v1.dat: Regenerate.
* regformats/s390x-linux64v2.dat: Regenerate.
* regformats/s390x-te-linux64.dat: Regenerate.
* regformats/tic6x-c62x-linux.dat: Regenerate.
* regformats/tic6x-c62x.dat: Regenerate.
* regformats/tic6x-c64x-linux.dat: Regenerate.
* regformats/tic6x-c64x.dat: Regenerate.
* regformats/tic6x-c64xp-linux.dat: Regenerate.
* regformats/tic6x-c64xp.dat: Regenerate.
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|
Prior to version MicroBlaze v8.10.a,EDK 13.1, XMD's gdbserver stub returned 57
registers in response to GDB's G request. Starting with version MicroBlaze
v8.10.a, EDK 13.1, XMD added the slr and shr register, for a count of 59
registers. This patch adds these registers to the expected G response. This patch
fixes the above problem for baremetal and also supports the backward compatibility.
ChangeLog:
2014-07-02 Ajit Agarwal <ajitkum@xilinx.com>
* microblaze-tdep.c (microblaze_register_names): Add
the rshr and rslr register names.
(microblaze_gdbarch_init): Use of tdesc_has_registers.
Use of tdesc_find_feature. Use of tdesc_data_alloc.
Use of tdesc_numbered_register. Use of
microblaze_register_g_packet_guesses. Use of
tdesc_use_registers. Use of set_gdbarch_register_type.
(microblaze_register_g_packet_guesses): New.
* microblaze-tdep.h (microblaze_reg_num): Add
field MICROBLAZE_SLR_REGNUM MICROBLAZE_SHR_REGNUM
MICROBLAZE_NUM_REGS and MICROBLAZE_NUM_CORE_REGS.
(microblaze_frame_cache): Use of MICROBLAZE_NUM_REGS.
* features/microblaze-core.xml: New file.
* features/microblaze-stack-protect.xml: New file.
* features/microblaze-with-stack-protect.c: New file.
* features/microblaze-with-stack-protect.xml: New file.
* features/microblaze.xml: New file.
* features/microblaze.c: New file.
* features/Makefile (microblaze-with-stack-protect): Add
microblaze-with-stack-protect microblaze and
microblaze-expedite.
* regformats/microblaze-with-stack-protect.dat: New file.
* regformats/microblaze.dat: New file.
* doc/gdb.texinfo (MicroBlaze Features): New.
Signed-off-by:Ajit Agarwal ajitkum@xilinx.com
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|
This patch adds support for the Intel(R) Advanced Vector
Extensions 512 (Intel(R) AVX-512) registers. Native and remote
debugging are covered by this patch.
Intel(R) AVX-512 is an extension to AVX to support 512-bit wide
SIMD registers in 64-bit mode (XMM0-XMM31, YMM0-YMM31, ZMM0-ZMM31).
The number of available registers in 32-bit mode is still 8
(XMM0-7, YMM0-7, ZMM0-7). The lower 256-bits of the ZMM registers
are aliased to the respective 256-bit YMM registers. The lower
128-bits are aliased to the respective 128-bit XMM registers.
There are also 8 new, dedicated mask registers (K0-K7) in both 32-bit
mode and 64-bit mode.
For more information please see
Intel(R) Developer Zone: Intel(R) AVX
http://software.intel.com/en-us/intel-isa-extensions#pid-16007-1495
Intel(R) Architecture Instruction Set Extensions Programming Reference:
http://software.intel.com/en-us/file/319433-017pdf
2014-04-24 Michael Sturm <michael.sturm@mintel.com>
Walfred Tedeschi <walfred.tedeschi@intel.com>
* amd64-linux-nat.c (amd64_linux_gregset32_reg_offset): Add
AVX512 registers.
(amd64_linux_read_description): Add code to handle AVX512 xstate
mask and return respective tdesc.
* amd64-linux-tdep.c: Include features/i386/amd64-avx512-linux.c
and features/i386/x32-avx512-linux.c.
(amd64_linux_gregset_reg_offset): Add AVX512 registers.
(amd64_linux_core_read_description): Add code to handle AVX512
xstate mask and return respective tdesc.
(_initialize_amd64_linux_tdep): Initialize AVX512 tdesc.
* amd64-linux-tdep.h (AMD64_LINUX_ORIG_RAX_REGNUM): Adjust regnum
calculation.
(AMD64_LINUX_NUM_REGS): Adjust to new number of registers.
(tdesc_amd64_avx512_linux): New prototype.
(tdesc_x32_avx512_linux): Likewise.
* amd64-tdep.c: Include features/i386/amd64-avx512.c and
features/i386/x32-avx512.c.
(amd64_ymm_avx512_names): New register names for pseudo
registers YMM16-31.
(amd64_ymmh_avx512_names): New register names for raw registers
YMMH16-31.
(amd64_k_names): New register names for K registers.
(amd64_zmmh_names): New register names for ZMM raw registers.
(amd64_zmm_names): New registers names for ZMM pseudo registers.
(amd64_xmm_avx512_names): New register names for XMM16-31
registers.
(amd64_pseudo_register_name): Add code to return AVX512 pseudo
registers.
(amd64_init_abi): Add code to intitialize AVX512 tdep variables
if feature is present.
(_initialize_amd64_tdep): Call AVX512 tdesc initializers.
* amd64-tdep.h (enum amd64_regnum): Add AVX512 registers.
(AMD64_NUM_REGS): Adjust to new number of registers.
* i386-linux-nat.c (GETXSTATEREGS_SUPPLIES): Extend range of
registers supplied via XSTATE by AVX512 registers.
(i386_linux_read_description): Add case for AVX512.
* i386-linux-tdep.c: Include i386-avx512-linux.c.
(i386_linux_gregset_reg_offset): Add AVX512 registers.
(i386_linux_core_read_description): Add case for AVX512.
(i386_linux_init_abi): Install supported register note section
for AVX512.
(_initialize_i386_linux_tdep): Add call to tdesc init function for
AVX512.
* i386-linux-tdep.h (I386_LINUX_NUM_REGS): Set number of
registers to be number of zmm7h + 1.
(tdesc_i386_avx512_linux): Add tdesc for AVX512 registers.
* i386-tdep.c: Include features/i386/i386-avx512.c.
(i386_zmm_names): Add ZMM pseudo register names array.
(i386_zmmh_names): Add ZMM raw register names array.
(i386_k_names): Add K raw register names array.
(num_lower_zmm_regs): Add constant for the number of lower ZMM
registers. AVX512 has 16 more ZMM registers than there are YMM
registers.
(i386_zmmh_regnum_p): Add function to look up register number of
ZMM raw registers.
(i386_zmm_regnum_p): Likewise for ZMM pseudo registers.
(i386_k_regnum_p): Likewise for K raw registers.
(i386_ymmh_avx512_regnum_p): Likewise for additional YMM raw
registers added by AVX512.
(i386_ymm_avx512_regnum_p): Likewise for additional YMM pseudo
registers added by AVX512.
(i386_xmm_avx512_regnum_p): Likewise for additional XMM registers
added by AVX512.
(i386_register_name): Add code to hide YMMH16-31 and ZMMH0-31.
(i386_pseudo_register_name): Add ZMM pseudo registers.
(i386_zmm_type): Construct and return vector registers type for ZMM
registers.
(i386_pseudo_register_type): Return appropriate type for YMM16-31,
ZMM0-31 pseudo registers and K registers.
(i386_pseudo_register_read_into_value): Add code to read K, ZMM
and YMM16-31 registers from register cache.
(i386_pseudo_register_write): Add code to write K, ZMM and
YMM16-31 registers.
(i386_register_reggroup_p): Add code to include/exclude AVX512
registers in/from respective register groups.
(i386_validate_tdesc_p): Handle AVX512 feature, add AVX512
registers if feature is present in xcr0.
(i386_gdbarch_init): Add code to initialize AVX512 feature
variables in tdep structure, wire in pseudo registers and call
initialize_tdesc_i386_avx512.
* i386-tdep.h (struct gdbarch_tdep): Add AVX512 related
variables.
(i386_regnum): Add AVX512 registers.
(I386_SSE_NUM_REGS): New define for number of SSE registers.
(I386_AVX_NUM_REGS): Likewise for AVX registers.
(I386_AVX512_NUM_REGS): Likewise for AVX512 registers.
(I386_MAX_REGISTER_SIZE): Change to 64 bytes, ZMM registers are
512 bits wide.
(i386_xmm_avx512_regnum_p): New prototype for register look up.
(i386_ymm_avx512_regnum_p): Likewise.
(i386_k_regnum_p): Likewise.
(i386_zmm_regnum_p): Likewise.
(i386_zmmh_regnum_p): Likewise.
* i387-tdep.c : Update year in copyright notice.
(xsave_ymm_avx512_offset): New table for YMM16-31 offsets in
XSAVE buffer.
(XSAVE_YMM_AVX512_ADDR): New macro.
(xsave_xmm_avx512_offset): New table for XMM16-31 offsets in
XSAVE buffer.
(XSAVE_XMM_AVX512_ADDR): New macro.
(xsave_avx512_k_offset): New table for K register offsets in
XSAVE buffer.
(XSAVE_AVX512_K_ADDR): New macro.
(xsave_avx512_zmm_h_offset): New table for ZMM register offsets
in XSAVE buffer.
(XSAVE_AVX512_ZMM_H_ADDR): New macro.
(i387_supply_xsave): Add code to supply AVX512 registers to XSAVE
buffer.
(i387_collect_xsave): Add code to collect AVX512 registers from
XSAVE buffer.
* i387-tdep.h (I387_NUM_XMM_AVX512_REGS): New define for number
of XMM16-31 registers.
(I387_NUM_K_REGS): New define for number of K registers.
(I387_K0_REGNUM): New define for K0 register number.
(I387_NUM_ZMMH_REGS): New define for number of ZMMH registers.
(I387_ZMM0H_REGNUM): New define for ZMM0H register number.
(I387_NUM_YMM_AVX512_REGS): New define for number of YMM16-31
registers.
(I387_YMM16H_REGNUM): New define for YMM16H register number.
(I387_XMM16_REGNUM): New define for XMM16 register number.
(I387_YMM0_REGNUM): New define for YMM0 register number.
(I387_KEND_REGNUM): New define for last K register number.
(I387_ZMMENDH_REGNUM): New define for last ZMMH register number.
(I387_YMMH_AVX512_END_REGNUM): New define for YMM31 register
number.
(I387_XMM_AVX512_END_REGNUM): New define for XMM31 register
number.
* common/i386-xstate.h: Add AVX 3.1 feature bits, mask and XSTATE
size.
* features/Makefile: Add AVX512 related files.
* features/i386/32bit-avx512.xml: New file.
* features/i386/64bit-avx512.xml: Likewise.
* features/i386/amd64-avx512-linux.c: Likewise.
* features/i386/amd64-avx512-linux.xml: Likewise.
* features/i386/amd64-avx512.c: Likewise.
* features/i386/amd64-avx512.xml: Likewise.
* features/i386/i386-avx512-linux.c: Likewise.
* features/i386/i386-avx512-linux.xml: Likewise.
* features/i386/i386-avx512.c: Likewise.
* features/i386/i386-avx512.xml: Likewise.
* features/i386/x32-avx512-linux.c: Likewise.
* features/i386/x32-avx512-linux.xml: Likewise.
* features/i386/x32-avx512.c: Likewise.
* features/i386/x32-avx512.xml: Likewise.
* regformats/i386/amd64-avx512-linux.dat: New file.
* regformats/i386/amd64-avx512.dat: Likewise.
* regformats/i386/i386-avx512-linux.dat: Likewise.
* regformats/i386/i386-avx512.dat: Likewise.
* regformats/i386/x32-avx512-linux.dat: Likewise.
* regformats/i386/x32-avx512.dat: Likewise.
* NEWS: Add note about new support for AVX512.
testsuite/
* Makefile.in (EXECUTABLES): Added i386-avx512.
* gdb.arch/i386-avx512.c: New file.
* gdb.arch/i386-avx512.exp: Likewise.
gdbserver/
* Makefile.in: Added rules to handle new files
i386-avx512.c i386-avx512-linux.c amd64-avx512.c
amd64-avx512-linux.c x32-avx512.c x32-avx512-linux.c.
* configure.srv (srv_i386_regobj): Add i386-avx512.o.
(srv_i386_linux_regobj): Add i386-avx512-linux.o.
(srv_amd64_regobj): Add amd64-avx512.o and x32-avx512.o.
(srv_amd64_linux_regobj): Add amd64-avx512-linux.o and
x32-avx512-linux.o.
(srv_i386_32bit_xmlfiles): Add i386/32bit-avx512.xml.
(srv_i386_64bit_xmlfiles): Add i386/64bit-avx512.xml.
(srv_amd64_xmlfiles): Add i386/amd64-avx512.xml and
i386/x32-avx512.xml.
(srv_i386_linux_xmlfiles): Add i386/i386-avx512-linux.xml.
(srv_amd64_linux_xmlfiles): Add i386/amd64-avx512-linux.xml and
i386/x32-avx512-linux.xml.
* i387-fp.c (num_avx512_k_registers): New constant for number
of K registers.
(num_avx512_zmmh_low_registers): New constant for number of
lower ZMM registers (0-15).
(num_avx512_zmmh_high_registers): New constant for number of
higher ZMM registers (16-31).
(num_avx512_ymmh_registers): New contant for number of higher
YMM registers (ymm16-31 added by avx521 on x86_64).
(num_avx512_xmm_registers): New constant for number of higher
XMM registers (xmm16-31 added by AVX512 on x86_64).
(struct i387_xsave): Add space for AVX512 registers.
(i387_cache_to_xsave): Change raw buffer size to 64 characters.
Add code to handle AVX512 registers.
(i387_xsave_to_cache): Add code to handle AVX512 registers.
* linux-x86-low.c (init_registers_amd64_avx512_linux): New
prototypei from generated file.
(tdesc_amd64_avx512_linux): Likewise.
(init_registers_x32_avx512_linux): Likewise.
(tdesc_x32_avx512_linux): Likewise.
(init_registers_i386_avx512_linux): Likewise.
(tdesc_i386_avx512_linux): Likewise.
(x86_64_regmap): Add AVX512 registers.
(x86_linux_read_description): Add code to handle AVX512 XSTATE
mask.
(initialize_low_arch): Add code to initialize AVX512 registers.
doc/
* gdb.texinfo (i386 Features): Add description of AVX512
registers.
Change-Id: Ifc4c08c76b85dbec18d02efdbe6182e851584438
Signed-off-by: Michael Sturm <michael.sturm@intel.com>
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The rules for generating the output register files look like:
amd64.c : $(srcdir)/../regformats/i386/amd64.dat $(regdat_sh)
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/amd64.dat amd64.c
According to this rule, if regdat.sh is newer than amd64.c, then
regdat.sh shall be invoked on amd64.dat. According to regdat.sh, if the
script determines that the output file amd64.c has not changed, then it
will not overwrite the existing output file. This means that a
subsequent invocation of make will trigger the above rule again as
regdat.sh will be perpetually newer than amd64.c.
This then shows up in the make output like so:
/bin/bash ./../regformats/regdat.sh ./../regformats/i386/amd64-linux.dat amd64-linux.c
amd64-linux.c unchanged.
/bin/bash ./../regformats/regdat.sh ./../regformats/i386/amd64-avx-linux.dat amd64-avx-linux.c
amd64-avx-linux.c unchanged.
...
To fix this pathological behavior, it suffices to have regdat.sh
unconditionally rewrite the output register file.
On my machine, which has a regdat.sh file that is newer than some of the
input register files, this change speeds up every invocation of make
under gdb/ by about 5 seconds.
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2013-11-20 Walfred Tedeschi <walfred.tedeschi@intel.com>
* features/i386/Makefile: Adapts for using MPX registers.
* features/i386/32bit-mpx.xml: New file.
* features/i386/64bit-mpx.xml: Likewise.
* features/i386/amd64-mpx-linux.c: Likewise.
* features/i386/amd64-mpx-linux.xml: Likewise.
* features/i386/amd64-mpx.c: Likewise.
* features/i386/amd64-mpx.xml: Likewise.
* features/i386/i386-mpx-linux.c: Likewise.
* features/i386/i386-mpx-linux.xml: Likewise.
* features/i386/i386-mpx.c: Likewise.
* features/i386/i386-mpx.xml: Likewise.
* regformats/i386/amd64-mpx-linux.dat: New file.
* regformats/i386/amd64-mpx.dat: Likewise.
* regformats/i386/i386-mpx-linux.dat: Likewise.
* regformats/i386/i386-mpx.dat: Likewise.
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gdb/
* nios2-tdep.c (nios2_reg_names): Use "sstatus" rather than "ba"
as the preferred name of r30.
* nios2-linux-tdep.c (reg_offsets): Likewise.
* features/nios2-cpu.xml: Likewise.
* features/nios2-linux.c: Regenerated.
* features/nios2.c: Regenerated.
* regformats/nios2-linux.dat: Regenerated.
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2013-09-13 Andreas Arnez <arnez@linux.vnet.ibm.com>
* NEWS: Mention TDB support.
* features/s390-tdb.xml: New file.
* features/s390-te-linux64.xml: New file.
* features/s390x-te-linux64.xml: New file.
* features/Makefile (WHICH): Add new tdescs above.
(s390-te-linux64-expedite): Set.
(s390x-te-linux64-expedite): Set.
* features/s390-te-linux64.c: New file (generated).
* features/s390x-te-linux64.c: New file (generated).
* regformats/s390-te-linux64.dat: New file (generated).
* regformats/s390x-te-linux64.dat: New file (generated).
* s390-tdep.h (HWCAP_S390_HIGH_GPRS): Define.
(HWCAP_S390_TE): Likewise.
(S390_TDB_DWORD0_REGNUM): Likewise.
(S390_TDB_DWORD0_REGNUM): Likewise.
(S390_TDB_ABORT_CODE_REGNUM): Likewise.
(S390_TDB_CONFLICT_TOKEN_REGNUM): Likewise.
(S390_TDB_ATIA_REGNUM): Likewise.
(S390_TDB_R0_REGNUM): Likewise.
(S390_TDB_R1_REGNUM): Likewise.
(S390_TDB_R2_REGNUM): Likewise.
(S390_TDB_R3_REGNUM): Likewise.
(S390_TDB_R4_REGNUM): Likewise.
(S390_TDB_R5_REGNUM): Likewise.
(S390_TDB_R6_REGNUM): Likewise.
(S390_TDB_R7_REGNUM): Likewise.
(S390_TDB_R8_REGNUM): Likewise.
(S390_TDB_R9_REGNUM): Likewise.
(S390_TDB_R10_REGNUM): Likewise.
(S390_TDB_R11_REGNUM): Likewise.
(S390_TDB_R12_REGNUM): Likewise.
(S390_TDB_R13_REGNUM): Likewise.
(S390_TDB_R14_REGNUM): Likewise.
(S390_TDB_R15_REGNUM): Likewise.
(S390_NUM_REGS): Increase.
(S390_IS_TDBREGSET_REGNUM): New macro.
(s390_regmap_tdb): Declare.
(s390_sizeof_tdbregset): Define.
(tdesc_s390_te_linux64): Declare.
(tdesc_s390x_te_linux64): Likewise.
* s390-tdep.c: Add includes for "auxv.h", <elf.h>,
"features/s390-te-linux64.c", and "features/s390x-te-linux64.c".
(s390_regmap_tdb): New regmap.
(s390_supply_tdb_regset): New function.
(s390_tdb_regset): New regset.
(s390_linux64v2_regset_sections): Add TDB regset to list.
(s390x_linux64v2_regset_sections): Likewise.
(s390_regset_from_core_section): Recognize TDB core note section.
(s390_core_read_description): If HWCAP indicates TE support,
select tdesc_s390_te_linux64 or tdesc_s390_s390x_te_linux64.
(s390_gdbarch_init): Handle TDB regset.
(_initialize_s390_tdep): Initialize new tdescs.
* s390-nat.c (HWCAP_S390_HIGH_GPRS): Remove define.
(have_regset_tdb): New variable.
(s390_native_supply): Support register invalidation.
(fetch_regset): Invalidate registers if ptrace yields ENODATA.
(check_regset): Treat ENODATA as "regset exists".
(s390_linux_fetch_inferior_registers): Add TDB.
(s390_read_description): Check for TDB existence and select
appropriate tdesc.
* gdbserver/Makefile.in (clean): Add removal of new makefile
targets.
(s390-te-linux64.c): New makefile target.
(s390x-te-linux64.c): Likewise.
* gdbserver/configure.srv (srv_regobj): Append new objects
s390-te-linux64.o and s390x-te-linux64.o.
(srv_xmlfiles): Append new files s390-te-linux64.xml,
s390x-te-linux64.xml, and s390-tdb.xml.
* gdbserver/linux-s390-low.c (init_registers_s390_te_linux64): New
declaration.
(tdesc_s390_te_linux64): Likewise.
(init_registers_s390x_te_linux64): Likewise.
(tdesc_s390x_te_linux64): Likewise.
(s390_check_regset): Treat ENODATA as "regset exists".
(s390_arch_setup): Add TDB regset support.
(initialize_low_arch): Initialize registers for new tdescs.
gdb/doc/ChangeLog:
2013-09-13 Andreas Arnez <arnez@linux.vnet.ibm.com>
* gdb.texinfo (Decimal Floating Point format): Mention S/390.
(Standard Target Features): Add new node to menu.
(S/390 and System z Features): New node.
gdb/testsuite/ChangeLog:
2013-09-13 Andreas Arnez <arnez@linux.vnet.ibm.com>
* gdb.arch/s390-tdbregs.c: New file.
* gdb.arch/s390-tdbregs.exp: New file.
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This patch makes GDBserver support multi-process + biarch.
Currently, if you're debugging more than one process at once with a
single gdbserver (in extended-remote mode), then all processes must
have the same architecture (e.g., 64-bit vs 32-bit). Otherwise, you
see this:
Added inferior 2
[Switching to inferior 2 [<null>] (<noexec>)]
Reading symbols from /home/pedro/gdb/tests/main32...done.
Temporary breakpoint 2 at 0x4004cf: main. (2 locations)
Starting program: /home/pedro/gdb/tests/main32
warning: Selected architecture i386 is not compatible with reported target architecture i386:x86-64
warning: Architecture rejected target-supplied description
Remote 'g' packet reply is too long: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000090cfffff0000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000b042f7460000000000020000230000002b0000002b0000002b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f03000000000000ffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f00003b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
... etc, etc ...
Even though the process was running a 32-bit program, GDBserver sent
back to GDB a register set in 64-bit layout.
A patch (http://sourceware.org/ml/gdb-patches/2012-11/msg00228.html) a
while ago made GDB track a target_gdbarch per inferior, and as
consequence, fetch a target description per-inferior. This patch is
the GDBserver counterpart, that makes GDBserver keep track of each
process'es XML target description and register layout. So in the
example above, GDBserver will send the correct register set in 32-bit
layout to GDB.
A new "struct target_desc" object (tdesc for short) is added, that
holds the target description and register layout information about
each process. Each `struct process_info' holds a pointer to a target
description. The regcache also gains a pointer to a target
description, mainly for convenience, and parallel with GDB (and
possible future support for programs that flip processor modes).
The low target's arch_setup routines are responsible for setting the
process'es correct tdesc. This isn't that much different to how
things were done before, except that instead of detecting the inferior
process'es architecture and calling the corresponding
init_registers_FOO routine, which would change the regcache layout
globals and recreate the threads' regcaches, the regcache.c globals
are gone, and the init_registers_$BAR routines now each initialize a
separate global struct target_desc object (one for each arch variant
GDBserver supports), and so all the init_registers_$BAR routines that
are built into GDBserver are called early at GDBserver startup time
(similarly to how GDB handles its built-in target descriptions), and
then the arch_setup routine is responsible for making
process_info->tdesc point to one of these target description globals.
The regcache module is all parameterized to get the regcache's layout
from the tdesc object instead of the old register_bytes, etc. globals.
The threads' regcaches are now created lazily. The old scheme where
we created each of them when we added a new thread doesn't work
anymore, because we add the main thread/lwp before we see it stop for
the first time, and it is only when we see the thread stop for the
first time that we have a chance of determining the inferior's
architecture (through the_low_target.arch_setup). Therefore when we
add the main thread we don't know which architecture/tdesc its
regcache should have.
This patch makes the gdb.multi/multi-arch.exp test now pass against
(extended-remote) GDBserver. It currently fails, without this patch.
The IPA also uses the regcache, so it gains a new global struct
target_desc pointer, which points at the description of the process it
is loaded in.
Re. the linux-low.c & friends changes. Since the register map
etc. may differ between processes (64-bit vs 32-bit) etc., the
linux_target_ops num_regs, regmap and regset_bitmap data fields are no
longer sufficient. A new method is added in their place that returns
a pointer to a new struct that includes all info linux-low.c needs to
access registers of the current inferior.
The patch/discussion that originally introduced
linux-low.c:disabled_regsets mentions that the disabled_regsets set
may be different per mode (in a biarch setup), and indeed that is
cleared whenever we start a new (first) inferior, so that global is
moved as well behind the new `struct regs_info'.
On the x86 side:
I simply replaced the i387-fp.c:num_xmm_registers global with a check
for 64-bit or 32-bit process, which is equivalent to how the global
was set. This avoided coming up with some more general mechanism that
would work for all targets that use this module (GNU/Linux, Windows,
etc.).
Tested:
GNU/Linux IA64
GNU/Linux MIPS64
GNU/Linux PowerPC (Fedora 16)
GNU/Linux s390x (Fedora 16)
GNU/Linux sparc64 (Debian)
GNU/Linux x86_64, -m64 and -m32 (Fedora 17)
Cross built, and smoke tested:
i686-w64-mingw32, under Wine.
GNU/Linux TI C6x, by Yao Qi.
Cross built but otherwise not tested:
aarch64-linux-gnu
arm-linux-gnu
m68k-linux
nios2-linux-gnu
sh-linux-gnu
spu
tilegx-unknown-linux-gnu
Completely untested:
GNU/Linux Blackfin
GNU/Linux CRIS
GNU/Linux CRISv32
GNU/Linux TI Xtensa
GNU/Linux M32R
LynxOS
QNX NTO
gdb/gdbserver/
2013-06-07 Pedro Alves <palves@redhat.com>
* Makefile.in (OBS): Add tdesc.o.
(IPA_OBJS): Add tdesc-ipa.o.
(tdesc-ipa.o): New rule.
* ax.c (gdb_eval_agent_expr): Adjust register_size call to new
interface.
* linux-low.c (new_inferior): Delete.
(disabled_regsets, num_regsets): Delete.
(linux_add_process): Adjust to set the new per-process
new_inferior flag.
(linux_detach_one_lwp): Adjust to call regcache_invalidate_thread.
(linux_wait_for_lwp): Adjust. Only call arch_setup if the event
was a stop. When calling arch_setup, switch the current inferior
to the thread that got an event.
(linux_resume_one_lwp): Adjust to call regcache_invalidate_thread.
(regsets_fetch_inferior_registers)
(regsets_store_inferior_registers): New regsets_info parameter.
Adjust to use it.
(linux_register_in_regsets): New regs_info parameter. Adjust to
use it.
(register_addr, fetch_register, store_register): New usrregs_info
parameter. Adjust to use it.
(usr_fetch_inferior_registers, usr_store_inferior_registers): New
parameter regs_info. Adjust to use it.
(linux_fetch_registers): Get the current inferior's regs_info, and
adjust to use it.
(linux_store_registers): Ditto.
[HAVE_LINUX_REGSETS] (initialize_regsets_info): New.
(initialize_low): Don't initialize the target_regsets here. Call
initialize_low_arch.
* linux-low.h (target_regsets): Delete declaration.
(struct regsets_info): New.
(struct usrregs_info): New.
(struct regs_info): New.
(struct process_info_private) <new_inferior>: New field.
(struct linux_target_ops): Delete the num_regs, regmap, and
regset_bitmap fields. New field regs_info.
[HAVE_LINUX_REGSETS] (initialize_regsets_info): Declare.
* i387-fp.c (num_xmm_registers): Delete.
(i387_cache_to_fsave, i387_fsave_to_cache): Adjust find_regno
calls to new interface.
(i387_cache_to_fxsave, i387_cache_to_xsave, i387_fxsave_to_cache)
(i387_xsave_to_cache): Adjust find_regno calls to new interface.
Infer the number of xmm registers from the regcache's target
description.
* i387-fp.h (num_xmm_registers): Delete.
* inferiors.c (add_thread): Don't install the thread's regcache
here.
* proc-service.c (gregset_info): Fetch the current inferior's
regs_info. Adjust to use it.
* regcache.c: Include tdesc.h.
(register_bytes, reg_defs, num_registers)
(gdbserver_expedite_regs): Delete.
(get_thread_regcache): If the thread doesn't have a regcache yet,
create one, instead of aborting gdbserver.
(regcache_invalidate_one): Rename to ...
(regcache_invalidate_thread): ... this.
(regcache_invalidate_one): New.
(regcache_invalidate): Only invalidate registers of the current
process.
(init_register_cache): Add target_desc parameter, and use it.
(new_register_cache): Ditto. Assert the target description has a
non zero registers_size.
(regcache_cpy): Add assertions. Adjust.
(realloc_register_cache, set_register_cache): Delete.
(registers_to_string, registers_from_string): Adjust.
(find_register_by_name, find_regno, find_register_by_number)
(register_cache_size): Add target_desc parameter, and use it.
(free_register_cache_thread, free_register_cache_thread_one)
(regcache_release, register_cache_size): New.
(register_size): Add target_desc parameter, and use it.
(register_data, supply_register, supply_register_zeroed)
(supply_regblock, supply_register_by_name, collect_register)
(collect_register_as_string, collect_register_by_name): Adjust.
* regcache.h (struct target_desc): Forward declare.
(struct regcache) <tdesc>: New field.
(init_register_cache, new_register_cache): Add target_desc
parameter.
(regcache_invalidate_thread): Declare.
(regcache_invalidate_one): Delete declaration.
(regcache_release): Declare.
(find_register_by_number, register_cache_size, register_size)
(find_regno): Add target_desc parameter.
(gdbserver_expedite_regs, gdbserver_xmltarget): Delete
declarations.
* remote-utils.c: Include tdesc.h.
(outreg, prepare_resume_reply): Adjust.
* server.c: Include tdesc.h.
(gdbserver_xmltarget): Delete declaration.
(get_features_xml, process_serial_event): Adjust.
* server.h [IN_PROCESS_AGENT] (struct target_desc): Forward
declare.
(struct process_info) <tdesc>: New field.
(ipa_tdesc): Declare.
* tdesc.c: New file.
* tdesc.h: New file.
* tracepoint.c: Include tdesc.h.
[IN_PROCESS_AGENT] (ipa_tdesc): Define.
(get_context_regcache): Adjust to pass ipa_tdesc down.
(do_action_at_tracepoint): Adjust to get the register cache size
from the context regcache's description.
(traceframe_walk_blocks): Adjust to get the register cache size
from the current trace frame's description.
(traceframe_get_pc): Adjust to get current trace frame's
description and pass it down.
(gdb_collect): Adjust to get the register cache size from the
IPA's description.
* linux-amd64-ipa.c (tdesc_amd64_linux): Declare.
(gdbserver_xmltarget): Delete.
(initialize_low_tracepoint): Set the ipa's target description.
* linux-i386-ipa.c (tdesc_i386_linux): Declare.
(initialize_low_tracepoint): Set the ipa's target description.
* linux-x86-low.c: Include tdesc.h.
[__x86_64__] (is_64bit_tdesc): New.
(ps_get_thread_area, x86_get_thread_area): Use it.
(i386_cannot_store_register): Rename to ...
(x86_cannot_store_register): ... this. Use is_64bit_tdesc.
(i386_cannot_fetch_register): Rename to ...
(x86_cannot_fetch_register): ... this. Use is_64bit_tdesc.
(x86_fill_gregset, x86_store_gregset): Adjust register_size calls
to new interface.
(target_regsets): Rename to ...
(x86_regsets): ... this.
(x86_get_pc, x86_set_pc): Adjust register_size calls to new
interface.
(x86_siginfo_fixup): Use is_64bit_tdesc.
[__x86_64__] (tdesc_amd64_linux, tdesc_amd64_avx_linux)
(tdesc_x32_avx_linux, tdesc_x32_linux)
(tdesc_i386_linux, tdesc_i386_mmx_linux, tdesc_i386_avx_linux):
Declare.
(x86_linux_update_xmltarget): Delete.
(I386_LINUX_XSAVE_XCR0_OFFSET): Define.
(have_ptrace_getfpxregs, have_ptrace_getregset): New.
(AMD64_LINUX_USER64_CS): New.
(x86_linux_read_description): New, based on
x86_linux_update_xmltarget.
(same_process_callback): New.
(x86_arch_setup_process_callback): New.
(x86_linux_update_xmltarget): New.
(x86_regsets_info): New.
(amd64_linux_regs_info): New.
(i386_linux_usrregs_info): New.
(i386_linux_regs_info): New.
(x86_linux_regs_info): New.
(x86_arch_setup): Reimplement.
(x86_install_fast_tracepoint_jump_pad): Use is_64bit_tdesc.
(x86_emit_ops): Ditto.
(the_low_target): Adjust. Install x86_linux_regs_info,
x86_cannot_fetch_register, and x86_cannot_store_register.
(initialize_low_arch): New.
* linux-ia64-low.c (tdesc_ia64): Declare.
(ia64_fetch_register): Adjust.
(ia64_usrregs_info, regs_info): New globals.
(ia64_regs_info): New function.
(the_low_target): Adjust.
(initialize_low_arch): New function.
* linux-sparc-low.c (tdesc_sparc64): Declare.
(sparc_fill_gregset_to_stack, sparc_store_gregset_from_stack):
Adjust.
(sparc_arch_setup): New function.
(sparc_regsets_info, sparc_usrregs_info, regs_info): New globals.
(the_low_target): Adjust.
(initialize_low_arch): New function.
* linux-ppc-low.c (tdesc_powerpc_32l, tdesc_powerpc_altivec32l)
(tdesc_powerpc_cell32l, tdesc_powerpc_vsx32l)
(tdesc_powerpc_isa205_32l, tdesc_powerpc_isa205_altivec32l)
(tdesc_powerpc_isa205_vsx32l, tdesc_powerpc_e500l)
(tdesc_powerpc_64l, tdesc_powerpc_altivec64l)
(tdesc_powerpc_cell64l, tdesc_powerpc_vsx64l)
(tdesc_powerpc_isa205_64l, tdesc_powerpc_isa205_altivec64l)
(tdesc_powerpc_isa205_vsx64l): Declare.
(ppc_cannot_store_register, ppc_collect_ptrace_register)
(ppc_supply_ptrace_register, parse_spufs_run, ppc_get_pc)
(ppc_set_pc, ppc_get_hwcap): Adjust.
(ppc_usrregs_info): Forward declare.
(!__powerpc64__) ppc_regmap_adjusted: New global.
(ppc_arch_setup): Adjust to the current process'es target
description.
(ppc_fill_vsxregset, ppc_store_vsxregset, ppc_fill_vrregset)
(ppc_store_vrregset, ppc_fill_evrregset, ppc_store_evrregse)
(ppc_store_evrregset): Adjust.
(target_regsets): Rename to ...
(ppc_regsets): ... this, and make static.
(ppc_usrregs_info, ppc_regsets_info, regs_info): New globals.
(ppc_regs_info): New function.
(the_low_target): Adjust.
(initialize_low_arch): New function.
* linux-s390-low.c (tdesc_s390_linux32, tdesc_s390_linux32v1)
(tdesc_s390_linux32v2, tdesc_s390_linux64, tdesc_s390_linux64v1)
(tdesc_s390_linux64v2, tdesc_s390x_linux64, tdesc_s390x_linux64v1)
(tdesc_s390x_linux64v2): Declare.
(s390_collect_ptrace_register, s390_supply_ptrace_register)
(s390_fill_gregset, s390_store_last_break): Adjust.
(target_regsets): Rename to ...
(s390_regsets): ... this, and make static.
(s390_get_pc, s390_set_pc): Adjust.
(s390_get_hwcap): New target_desc parameter, and use it.
[__s390x__] (have_hwcap_s390_high_gprs): New global.
(s390_arch_setup): Adjust to set the current process'es target
description. Don't adjust the regmap.
(s390_usrregs_info, s390_regsets_info, regs_info): New globals.
[__s390x__] (s390_usrregs_info_3264, s390_regsets_info_3264)
(regs_info_3264): New globals.
(s390_regs_info): New function.
(the_low_target): Adjust.
(initialize_low_arch): New function.
* linux-mips-low.c (tdesc_mips_linux, tdesc_mips_dsp_linux)
(tdesc_mips64_linux, tdesc_mips64_dsp_linux): Declare.
[__mips64] (init_registers_mips_linux)
(init_registers_mips_dsp_linux): Delete defines.
[__mips64] (tdesc_mips_linux, tdesc_mips_dsp_linux): New defines.
(have_dsp): New global.
(mips_read_description): New, based on mips_arch_setup.
(mips_arch_setup): Reimplement.
(get_usrregs_info): New function.
(mips_cannot_fetch_register, mips_cannot_store_register)
(mips_get_pc, mips_set_pc, mips_fill_gregset, mips_store_gregset)
(mips_fill_fpregset, mips_store_fpregset): Adjust.
(target_regsets): Rename to ...
(mips_regsets): ... this, and make static.
(mips_regsets_info, mips_dsp_usrregs_info, mips_usrregs_info)
(dsp_regs_info, regs_info): New globals.
(mips_regs_info): New function.
(the_low_target): Adjust.
(initialize_low_arch): New function.
* linux-arm-low.c (tdesc_arm, tdesc_arm_with_iwmmxt)
(tdesc_arm_with_vfpv2, tdesc_arm_with_vfpv3, tdesc_arm_with_neon):
Declare.
(arm_fill_vfpregset, arm_store_vfpregset): Adjust.
(arm_read_description): New, with bits factored from
arm_arch_setup.
(arm_arch_setup): Reimplement.
(target_regsets): Rename to ...
(arm_regsets): ... this, and make static.
(arm_regsets_info, arm_usrregs_info, regs_info): New globals.
(arm_regs_info): New function.
(the_low_target): Adjust.
(initialize_low_arch): New function.
* linux-m68k-low.c (tdesc_m68k): Declare.
(target_regsets): Rename to ...
(m68k_regsets): ... this, and make static.
(m68k_regsets_info, m68k_usrregs_info, regs_info): New globals.
(m68k_regs_info): New function.
(m68k_arch_setup): New function.
(the_low_target): Adjust.
(initialize_low_arch): New function.
* linux-sh-low.c (tdesc_sharch): Declare.
(target_regsets): Rename to ...
(sh_regsets): ... this, and make static.
(sh_regsets_info, sh_usrregs_info, regs_info): New globals.
(sh_regs_info, sh_arch_setup): New functions.
(the_low_target): Adjust.
(initialize_low_arch): New function.
* linux-bfin-low.c (tdesc_bfin): Declare.
(bfin_arch_setup): New function.
(bfin_usrregs_info, regs_info): New globals.
(bfin_regs_info): New function.
(the_low_target): Adjust.
(initialize_low_arch): New function.
* linux-cris-low.c (tdesc_cris): Declare.
(cris_arch_setup): New function.
(cris_usrregs_info, regs_info): New globals.
(cris_regs_info): New function.
(the_low_target): Adjust.
(initialize_low_arch): New function.
* linux-cris-low.c (tdesc_crisv32): Declare.
(cris_arch_setup): New function.
(cris_regsets_info, cris_usrregs_info, regs_info): New globals.
(cris_regs_info): New function.
(the_low_target): Adjust.
(initialize_low_arch): New function.
* linux-m32r-low.c (tdesc_m32r): Declare.
(m32r_arch_setup): New function.
(m32r_usrregs_info, regs_info): New globals.
(m32r_regs_info): Adjust.
(initialize_low_arch): New function.
* linux-tic6x-low.c (tdesc_tic6x_c64xp_linux)
(tdesc_tic6x_c64x_linux, tdesc_tic6x_c62x_linux): Declare.
(tic6x_usrregs_info): Forward declare.
(tic6x_read_description): New function, based on ...
(tic6x_arch_setup): ... this. Reimplement.
(target_regsets): Rename to ...
(tic6x_regsets): ... this, and make static.
(tic6x_regsets_info, tic6x_usrregs_info, regs_info): New globals.
(tic6x_regs_info): New function.
(the_low_target): Adjust.
(initialize_low_arch): New function.
* linux-xtensa-low.c (tdesc_xtensa): Declare.
(xtensa_fill_gregset, xtensa_store_gregset): Adjust.
(target_regsets): Rename to ...
(xtensa_regsets): ... this, and make static.
(xtensa_regsets_info, xtensa_usrregs_info, regs_info): New
globals.
(xtensa_arch_setup, xtensa_regs_info): New functions.
(the_low_target): Adjust.
(initialize_low_arch): New function.
* linux-nios2-low.c (tdesc_nios2_linux): Declare.
(nios2_arch_setup): Set the current process'es tdesc.
(target_regsets): Rename to ...
(nios2_regsets): ... this.
(nios2_regsets_info, nios2_usrregs_info, regs_info): New globals.
(nios2_regs_info): New function.
(the_low_target): Adjust.
(initialize_low_arch): New function.
* linux-aarch64-low.c (tdesc_aarch64): Declare.
(aarch64_arch_setup): Set the current process'es tdesc.
(target_regsets): Rename to ...
(aarch64_regsets): ... this.
(aarch64_regsets_info, aarch64_usrregs_info, regs_info): New globals.
(aarch64_regs_info): New function.
(the_low_target): Adjust.
(initialize_low_arch): New function.
* linux-tile-low.c (tdesc_tilegx, tdesc_tilegx32): Declare
globals.
(target_regsets): Rename to ...
(tile_regsets): ... this.
(tile_regsets_info, tile_usrregs_info, regs_info): New globals.
(tile_regs_info): New function.
(tile_arch_setup): Set the current process'es tdesc.
(the_low_target): Adjust.
(initialize_low_arch): New function.
* spu-low.c (tdesc_spu): Declare.
(spu_create_inferior, spu_attach): Set the new process'es tdesc.
* win32-arm-low.c (tdesc_arm): Declare.
(arm_arch_setup): New function.
(the_low_target): Install arm_arch_setup instead of
init_registers_arm.
* win32-i386-low.c (tdesc_i386, tdesc_amd64): Declare.
(init_windows_x86): Rename to ...
(i386_arch_setup): ... this. Set `win32_tdesc'.
(the_low_target): Adjust.
* win32-low.c (win32_tdesc): New global.
(child_add_thread): Don't create the thread cache here.
(do_initial_child_stuff): Set the new process'es tdesc.
* win32-low.h (struct target_desc): Forward declare.
(win32_tdesc): Declare.
* lynx-i386-low.c (tdesc_i386): Declare global.
(lynx_i386_arch_setup): Set `lynx_tdesc'.
* lynx-low.c (lynx_tdesc): New global.
(lynx_add_process): Set the new process'es tdesc.
* lynx-low.h (struct target_desc): Forward declare.
(lynx_tdesc): Declare global.
* lynx-ppc-low.c (tdesc_powerpc_32): Declare global.
(lynx_ppc_arch_setup): Set `lynx_tdesc'.
* nto-low.c (nto_tdesc): New global.
(do_attach): Set the new process'es tdesc.
* nto-low.h (struct target_desc): Forward declare.
(nto_tdesc): Declare.
* nto-x86-low.c (tdesc_i386): Declare.
(nto_x86_arch_setup): Set `nto_tdesc'.
gdb/
2013-06-07 Pedro Alves <palves@redhat.com>
* regformats/regdat.sh: Output #include tdesc.h. Make globals
static. Output a global target description pointer.
(init_registers_${name}): Adjust to initialize a
target description structure.
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The aarch64-without-fpu description is unused.
Linux requires an FPU, so the AArch64 native port always returns the
with-fpu variant:
static const struct target_desc *
aarch64_linux_read_description (struct target_ops *ops)
{
initialize_tdesc_aarch64 ();
return tdesc_aarch64;
}
When the target doesn't report a target description at all, we
fallback to a register set with an FPU:
aarch64_gdbarch_init ()
...
if (!tdesc_has_registers (tdesc))
tdesc = tdesc_aarch64;
This just removes the dead description.
Tested by building on x86_64 Fedora 17 with --enable=targets=all.
gdb/
2013-05-29 Pedro Alves <palves@redhat.com>
* aarch64-tdep.c: Don't include "features/aarch64-without-fpu.c".
(_initialize_aarch64_tdep): Don't call
initialize_tdesc_aarch64_without_fpu.
* features/Makefile (WHICH): Remove reference to
aarch64-without-fpu.
* features/aarch64-without-fpu.c: Delete file.
* regformats/aarch64-without-fpu.dat: Delete file.
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