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".
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".
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".
The 4-byte VSCR register is found inside a 16-byte field in the regset
returned by ptrace and in core files. The position of VSCR depends on
the endianess of the target, which was previously assumed to be
big-endian for the purpose of getting VSCR. This patch removes this
assumption to fix access to VSCR in little-endian mode.
gdb/ChangeLog:
2018-05-22 Pedro Franco de Carvalho <pedromfc@linux.vnet.ibm.com>
* ppc-tdep.h (struct ppc_reg_offsets): Remove vector register
offset fields.
* ppc-fbsd-tdep.c (ppc32_fbsd_reg_offsets): Remove initializers
for vector register offset fields.
(ppc64_fbsd_reg_offsets): Likewise.
* ppc-nbsd-tdep.c (_initialize_ppcnbsd_tdep): Remove assignment
to vector register offset fields.
* ppc-obsd-tdep.c (_initialize_ppcnbsd_tdep): Remove assignment
to vector register offset fields.
* ppc-obsd-nat.c (_initialize_ppcobsd_nat): Remove assignment to
vector register offset fields.
* rs6000-aix-tdep.c (rs6000_aix32_reg_offsets): Remove
initializers for vector register offset fields.
(rs6000_aix64_reg_offsets): Likewise.
* rs6000-tdep.c (ppc_vrreg_offset): Remove.
(ppc_supply_vrregset): Remove.
(ppc_collect_vrregset): Remove.
* ppc-linux-tdep.c (ppc_linux_collect_vrregset): New function.
(ppc_linux_vrregset) : New function.
(ppc32_le_linux_vrregmap, ppc32_be_linux_vrregmap)
(ppc32_le_linux_vrregset, ppc32_be_linux_vrregset): New globals.
(ppc32_linux_vrregset): Remove.
(ppc_linux_iterate_over_regset_sections): Call ppc_linux_vrregset
and use result instead of ppc32_linux_vrregset.
(ppc32_linux_reg_offsets): Remove initializers for vector register
offset fields.
(ppc64_linux_reg_offsets): Likewise.
* ppc-linux-tdep.h (ppc_linux_vrregset): New declaration.
* ppc-linux-nat.c: Include regset.h.
(gdb_vrregset_t): Adjust comment to account for little-endian
mode.
(supply_vrregset, fill_vrregset): Remove.
(fetch_altivec_register, store_altivec_register): Remove.
(fetch_altivec_registers): Add regno parameter. Get regset using
ppc_linux_vrregset. Use regset to supply registers.
(store_altivec_registers): Add regno parameter. Get regset using
ppc_linux_vrregset. Use regset to collect registers.
(fetch_register): Call fetch_altivec_registers instead of
fetch_altivec_register.
(store_register): Call store_altivec_registers instead of
store_altivec_register.
(fetch_ppc_registers): Call fetch_altivec_registers with -1 for
the new regno parameter.
(store_ppc_registers): Call store_altivec_registers with -1 for
the new regno parameter.
gdb/gdbserver/ChangeLog:
2018-05-22 Pedro Franco de Carvalho <pedromfc@linux.vnet.ibm.com>
* linux-ppc-low.c (ppc_fill_vrregset): Add vscr_offset variable.
Set vscr_offset to 0 in little-endian mode and 12 in big-endian
mode. Call collect_register_by_name with vscr using
vscr_offset. Zero-pad vscr and vrsave fields in collector buffer.
(ppc_store_vrregset): Add and set vscr_offset variable as in
ppc_fill_vrregset. Call supply_register_by_name with vscr using
vscr_offset.
This patch fixes a number of bugs in ppc32 plt stub matching code.
1) The 4-insn stubs for shared libs and PIEs weren't matched.
2) The executable stub miscalculated PLT entry address (by oring a
sign-extended quantity rather than adding).
3) Comments were not accurate.
In addition, the insn arrays are made const.
* ppc-linux-tdep.c (powerpc32_plt_stub): Make const.
(powerpc32_plt_stub_so_1): Rename from powerpc32_plt_stub_so.
Remove nop. Make const. Comment.
(powerpc32_plt_stub_so_2): New.
(POWERPC32_PLT_CHECK_LEN): Rename from POWERPC32_PLT_STUB_LEN.
Correct count. Update uses.
(ppc_skip_trampoline_code): Match powerpc32_plt_stub_so_2 too.
Move common code reading PLT entry word. Correct
powerpc32_plt_stub PLT address calculation.
* ppc64-tdep.c (ppc64_standard_linkage1): Make const.
(ppc64_standard_linkage2, ppc64_standard_linkage3): Likewise.
(ppc64_standard_linkage4, ppc64_standard_linkage5): Likewise.
(ppc64_standard_linkage6, ppc64_standard_linkage7): Likewise.
(ppc64_standard_linkage8): Likewise.
* rs6000-tdep.c (ppc_insns_match_pattern): Make pattern const.
Correct insns description.
* ppc-tdep.h (ppc_insns_match_pattern): Update prototype.
Reviewed-By: Yao Qi <qiyaoltc@gmail.com>
Current versions of GCC support switching the format used for "long double"
to either IBM double double or IEEE-128. The resulting binary is marked
via different setting of the Tag_GNU_Power_ABI_FP GNU attribute.
This patch checks this attribute to detect the format of the default
"long double" type and sets GDB's notion of the format accordingly.
The patch also adds support for the "__ibm128" type, which always uses
IBM double double format independent of the format used for "long double".
A new test case verifies that all three types, "long double", "__float128",
and "__ibm128" are correctly detected in all three compiler settings,
the default setting, -mabi=ieeelongdouble, and -mabi=ibmlongdouble.
gdb/ChangeLog:
2017-11-21 Ulrich Weigand <uweigand@de.ibm.com>
* ppc-tdep.h (enum powerpc_long_double_abi): New data type.
(struct gdbarch_tdep): New member long_double_abi.
* rs6000-tdep.c (rs6000_gdbarch_init): Initialize long_double_abi
member of tdep struct based on Tag_GNU_Power_ABI_FP attribute.
* ppc-linux-tdep.c (ppc_linux_init_abi): Install long double data
format depending on long_double_abi tdep member.
(ppc_floatformat_for_type): Handle __ibm128 type.
gdb/testsuite/ChangeLog:
2017-11-21 Ulrich Weigand <uweigand@de.ibm.com>
* gdb.arch/ppc-longdouble.exp: New file.
* gdb.arch/ppc-longdouble.c: Likewise.
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.
This is the first patch of a series to implement support for the
PowerPC ELFv2 ABI. While powerpc64le-linux will use ELFv2, and
the existing powerpc64-linux code will continue to use ELFv1,
in theory ELFv2 is also defined for big-endian systems (and
ELFv1 was also defined for little-endian systems).
Therefore this patch adds a new tdep->elf_abi variable to decide
which ABI version to use. This is detected from the ELF header
e_flags value; if this is not present, we default to ELFv2 on
little-endian and ELFv1 otherwise.
This patch does not yet introduce any actual difference in GDB's
handling of the two ABIs. Those will be added by the remainder
of this patch series.
For an overview of the changes in ELFv2, have a look at the
comments in the patch series that added ELFv2 to GCC, starting at:
http://gcc.gnu.org/ml/gcc-patches/2013-11/msg01144.html
gdb/ChangeLog:
* ppc-tdep.h (enum powerpc_elf_abi): New data type.
(struct gdbarch_tdep): New member elf_abi.
* rs6000-tdep.c: Include "elf/ppc64.h".
(rs6000_gdbarch_init): Detect ELF ABI version.
* rs6000-tdep.c (read_insn): Add frame param, don't assume big-endian.
(ppc_insns_match_pattern): Add frame param. Avoid multiple
target mem reads on optional insns.
* ppc-linux-tdep.c (ppc_skip_trampoline_code): Update
ppc_insns_match_pattern calls.
* ppc64-tdep.c (ppc64_standard_linkage2, ppc64_standard_linkage3):
Add match for power7 thread safety insns, and new order of
std 2,40(1) insn. Correct code shown for _dl_runtime_resolve
invocation in comment, and update rest of comment.
(PPC64_STANDARD_LINKAGE1_LEN, PPC64_STANDARD_LINKAGE2_LEN,
PPC64_STANDARD_LINKAGE3_LEN): Delete.
(ppc64_standard_linkage2_target): Update insn offsets.
(ppc64_skip_trampoline_code): Use a single insn buffer. Match newer
stubs first. Update calls.
* Makefile.in (ALL_TARGET_OBS): Add ppc64-tdep.o.
(HFILES_NO_SRCDIR): Add ppc64-tdep.h.
(ALLDEPFILES): Add ppc64-tdep.c.
* configure.tgt (powerpc-*-linux* | powerpc64-*-linux*): Add
ppc64-tdep.o to gdb_target_obs.
* ppc64-tdep.h: New file.
* ppc64-tdep.c: New file.
(insn_d, insn_ds, insn_xfx, ppc64_desc_entry_point): Move from
ppc-linux-tdep.c to here.
(PPC64_STANDARD_LINKAGE1_LEN, PPC64_STANDARD_LINKAGE2_LEN)
(PPC64_STANDARD_LINKAGE2_LEN): Likewise and use ARRAY_SIZE macro.
(ppc64_standard_linkage1_target, ppc64_standard_linkage2_target)
(ppc64_standard_linkage3_target, ppc64_skip_trampoline_code): Move
from ppc-linux-tdep.c to here.
(ppc64_convert_from_func_ptr_addr): Rename from
ppc64_linux_convert_from_func_ptr_addr to
ppc64_convert_from_func_ptr_addr and move from ppc-linux-tdep.c to
here.
* rs6000-tdep.c:
(read_insn): Move from ppc-linux-tdep.c to here.
(insns_match_pattern, insn_d_field, insn_ds_field): Move
from ppc-linux-tdep.c to here and rename them with the ppc_ prefix.
* ppc-linux-tdep.c: Include ppc64-tdep.h.
Removed above functions.
(ppc_linux_init_abi): Adjust.
Two modifications:
1. The addition of 2013 to the copyright year range for every file;
2. The use of a single year range, instead of potentially multiple
year ranges, as approved by the FSF.
* breakpoint.h (bp_location): Add related_address member.
* inferior.h (get_return_value): Take a pointer to struct value
instead of struct type for the function requested.
* value.h (using_struct_return): Likewise.
* gdbarch.sh (return_value): Take a pointer to struct value
instead of struct type for the function requested.
* breakpoint.c (set_breakpoint_location_function): Initialize
related_address for bp_gnu_ifunc_resolver breakpoints.
* elfread.c (elf_gnu_ifunc_resolver_return_stop): Pass the
requested function's address to gdbarch_return_value.
* eval.c (evaluate_subexp_standard): Pass the requested
function's address to using_struct_return.
* infcall.c (call_function_by_hand): Pass the requested
function's address to using_struct_return and
gdbarch_return_value.
* infcmd.c (get_return_value): Take a pointer to struct value
instead of struct type for the function requested.
(print_return_value): Update accordingly.
(finish_command_continuation): Likewise.
* stack.c (return_command): Pass the requested function's
address to using_struct_return and gdbarch_return_value.
* value.c (using_struct_return): Take a pointer to struct value
instead of struct type for the function requested. Pass the
requested function's address to gdbarch_return_value.
* python/py-finishbreakpoint.c (finish_breakpoint_object):
New function_value member, replacing function_type.
(bpfinishpy_dealloc): Update accordingly.
(bpfinishpy_pre_stop_hook): Likewise.
(bpfinishpy_init): Likewise. Record the requested function's
address.
* mips-tdep.c (mips_fval_reg): New enum.
(mips_o32_push_dummy_call): For MIPS16 FP doubles do not swap
words put in GP registers.
(mips_o64_push_dummy_call): Update a comment.
(mips_o32_return_value): Take a pointer to struct value instead
of struct type for the function requested and use it to check if
using the MIPS16 calling convention. Return the designated
general purpose registers for floating-point values returned in
MIPS16 mode.
(mips_o64_return_value): Likewise.
* ppc-tdep.h (ppc_sysv_abi_return_value): Update prototype.
(ppc_sysv_abi_broken_return_value): Likewise.
(ppc64_sysv_abi_return_value): Likewise.
* alpha-tdep.c (alpha_return_value): Take a pointer to struct
value instead of struct type for the function requested.
* amd64-tdep.c (amd64_return_value): Likewise.
* amd64-windows-tdep.c (amd64_windows_return_value): Likewise.
* arm-tdep.c (arm_return_value): Likewise.
* avr-tdep.c (avr_return_value): Likewise.
* bfin-tdep.c (bfin_return_value): Likewise.
* cris-tdep.c (cris_return_value): Likewise.
* frv-tdep.c (frv_return_value): Likewise.
* h8300-tdep.c (h8300_return_value): Likewise.
(h8300h_return_value): Likewise.
* hppa-tdep.c (hppa32_return_value): Likewise.
(hppa64_return_value): Likewise.
* i386-tdep.c (i386_return_value): Likewise.
* ia64-tdep.c (ia64_return_value): Likewise.
* iq2000-tdep.c (iq2000_return_value): Likewise.
* lm32-tdep.c (lm32_return_value): Likewise.
* m32c-tdep.c (m32c_return_value): Likewise.
* m32r-tdep.c (m32r_return_value): Likewise.
* m68hc11-tdep.c (m68hc11_return_value): Likewise.
* m68k-tdep.c (m68k_return_value): Likewise.
(m68k_svr4_return_value): Likewise.
* m88k-tdep.c (m88k_return_value): Likewise.
* mep-tdep.c (mep_return_value): Likewise.
* microblaze-tdep.c (microblaze_return_value): Likewise.
* mn10300-tdep.c (mn10300_return_value): Likewise.
* moxie-tdep.c (moxie_return_value): Likewise.
* mt-tdep.c (mt_return_value): Likewise.
* ppc-linux-tdep.c (ppc_linux_return_value): Likewise.
* ppc-sysv-tdep.c (ppc_sysv_abi_return_value): Likewise.
(ppc_sysv_abi_broken_return_value): Likewise.
(ppc64_sysv_abi_return_value): Likewise.
* ppcnbsd-tdep.c (ppcnbsd_return_value): Likewise.
* rl78-tdep.c (rl78_return_value): Likewise.
* rs6000-aix-tdep.c (rs6000_return_value): Likewise.
* rx-tdep.c (rx_return_value): Likewise.
* s390-tdep.c (s390_return_value): Likewise.
* score-tdep.c (score_return_value): Likewise.
* sh-tdep.c (sh_return_value_nofpu): Likewise.
(sh_return_value_fpu): Likewise.
* sh64-tdep.c (sh64_return_value): Likewise.
* sparc-tdep.c (sparc32_return_value): Likewise.
* sparc64-tdep.c (sparc64_return_value): Likewise.
* spu-tdep.c (spu_return_value): Likewise.
* tic6x-tdep.c (tic6x_return_value): Likewise.
* v850-tdep.c (v850_return_value): Likewise.
* vax-tdep.c (vax_return_value): Likewise.
* xstormy16-tdep.c (xstormy16_return_value): Likewise.
* xtensa-tdep.c (xtensa_return_value): Likewise.
* gdbarch.c: Regenerate.
* gdbarch.h: Regenerate.
gdb/testsuite/
* gdb.base/return-nodebug.exp: Also test float and double types.
Include "features/rs6000/powerpc-vsx64.c".
(ppc_supply_vsxregset): New function.
(ppc_collect_vsxregset): New function.
(IS_VSX_PSEUDOREG): New macro.
(IS_EFP_PSEUDOREG): New macro.
(vsx_register_p): New function.
(ppc_vsx_support_p): New function.
(rs6000_builtin_type_vec128): New function.
(rs6000_register_name): Hide upper halves of vs0~vs31. Return
correct names for VSX registers and EFPR registers.
(rs6000_pseudo_register_type): Return correct types for VSX
and EFPR registers.
(rs6000_pseudo_register_reggroup_p): Return correct group for
VSX and EFPR registers.
(ppc_pseudo_register_read): Rename to dfp_pseudo_register_read.
(ppc_pseudo_register_write): Rename to dfp_pseudo_register_write.
(vsx_pseudo_register_read): New function.
(vsx_pseudo_register_write): New function.
(efpr_pseudo_register_read): New function.
(efpr_pseudo_register_write): New function.
(rs6000_pseudo_register_read): Call new VSX and EFPR read functions.
(rs6000_pseudo_register_write): Call new VSX and EFPR write functions.
(rs6000_gdbarch_init): Declare have_vsx.
Initialize new upper half VSX registers.
Initialize VSX-related and EFPR-related pseudo-registers variables.
Adjust the number of pseudo registers accordingly.
* ppc-linux-nat.c: Define PTRACE_GETVSXREGS, PTRACE_SETVSXREGS
and SIZEOF_VSRREGS.
(gdb_vsxregset_t): New type.
(have_ptrace_getsetvsxregs): New variable.
(fetch_vsx_register): New function.
(fetch_register): Handle VSX registers.
(fetch_vsx_registers): New function.
(fetch_ppc_registers): Handle VSX registers.
(store_ppc_registers): Handle VSX registers.
(store_vsx_register): New function.
(store_register): Handle VSX registers.
(store_vsx_registers): New function.
(ppc_linux_read_description): Handle VSX-enabled inferiors.
(gdb_vsxregset_t): New type.
(supply_vsxregset): New function.
(fill_vsxregset): New function.
* ppc-tdep.h (vsx_register_p): New prototype.
(vsx_support_p): New prototype.
(ppc_vsr0_regnum): New variable.
(ppc_vsr0_upper_regnum): Likewise.
(ppc_efpr0_regnum): Likewise.
(ppc_builtin_type_vec128): New type.
(ppc_num_vsrs): New constant.
(ppc_num_vshrs): New constant.
(ppc_num_efprs): Likewise.
Define POWERPC_VEC_VSX PPC_VSR0_UPPER_REGNUM and PPC_VSR31_UPPER_REGNUM.
(ppc_supply_vsxregset): New prototype.
(ppc_collect_vsxregset): New prototype.
* ppc-linux-tdep.c: Include "features/rs6000/powerpc-vsx32l.c"
Include "features/rs6000/powerpc-vsx64l.c".
(_initialize_ppc_linux_tdep): Initialize VSX-enabled targets.
(ppc_linux_regset_sections): Add new ".reg-ppc-vsx" field.
(ppc32_linux_vsxregset): New 32-bit VSX-enabled regset.
(ppc_linux_regset_from_core_section): Handle VSX core section.
(ppc_linux_core_read_description): Support VSX-enabled core files.
* ppc-linux-tdep.h: Declare *tdesc_powerpc_vsx32l
Declare tdesc_powerpc_vsx64l
* corelow.c (get_core_register_section): Support VSX-enabled
core files.
* features/rs6000/power-vsx.xml: New VSX descriptions.
* features/rs6000/powerpc-vsx32.xml: New file.
* features/rs6000/powerpc-vsx32l.xml: New file.
* features/rs6000/powerpc-vsx64.xml: New file.
* features/rs6000/powerpc-vsx64l.xml: New file.
* features/rs6000/powerpc-vsx32.c: New file (generated).
* features/rs6000/powerpc-vsx32l.c: New file (generated).
* features/rs6000/powerpc-vsx64.c: New file (generated).
* features/rs6000/powerpc-vsx64l.c: New file (generated).
* features/Makefile: Updated with new descriptions.
* regformats/rs6000/powerpc-vsx32l.dat: New file (generated).
* regformats/rs6000/powerpc-vsx64l.dat: New file (generated).
* testsuite/gdb.arch/vsx-regs.c: New source file.
* testsuite/gdb.arch/vsx-regs.exp: New testcase.
* testsuite/lib/gdb.exp (skip_vsx_tests): New function.
* Makefile.in (ppc_linux_tdep_h): New macro.
(powerpc_32l_c, powerpc_altivec32_c, powerpc_altivec32l_c): Likewise.
(powerpc_64l_c, powerpc_altivec64_c, powerpc_altivec64l_c): Likewise.
(powerpc_e500l_c): Likewise.
(ppc-linux-nat.o): Update dependencies.
(ppc-linux-tdep.o): Update dependencies.
(rs6000-tdep.o): Update dependencies.
* ppc-tdep.h (ppc_linux_memory_remove_breakpoint): Remove.
(ppc_linux_svr4_fetch_link_map_offsets): Remove.
(ppc_linux_gregset, ppc_linux_fpregset): Move to ppc-linux-tdep.h
(ppc_supply_reg, ppc_collect_reg): Add prototypes.
(tdesc_powerpc_e500): Remove.
* rs6000.c: Include "features/rs6000/powerpc-altivec32.c"
and "features/rs6000/powerpc-altivec64.c".
(ppc_supply_reg, ppc_collect_reg): Make global.
(variants): Use tdesc_powerpc_32 for "powerpc" and
tdesc_powerpc_altivec64 for "powerpc64".
(_initialize_rs6000_tdep): Initialize AltiVec descriptions.
* ppc-linux-tdep.h: New file.
* ppc-linux-tdep.c: Include "ppc-linux-tdep.c".
Include "features/rs6000/powerpc-32l.c".
Include "features/rs6000/powerpc-altivec32l.c".
Include "features/rs6000/powerpc-64l.c".
Include "features/rs6000/powerpc-altivec64l.c".
Include "features/rs6000/powerpc-e500l.c".
(ppc_linux_supply_gregset): New function.
(ppc_linux_collect_gregset): Handle orig_r3 and trap registers.
(ppc32_linux_gregset): Use ppc_linux_supply_gregset.
(ppc64_linux_gregset): Likewise.
(ppc_linux_sigtramp_cache): Handle orig_r3 and trap registers.
(ppc_linux_trap_reg_p): New function.
(ppc_linux_write_pc): New function.
(ppc_linux_core_read_description): New function.
(ppc_linux_init_abi): Install ppc_linux_write_pc and
ppc_linux_core_read_description. Install orig_r3 and trap
registers if present in the target description.
(_initialize_ppc_linux_tdep): Initialize Linux target descriptions.
* ppc-linux-nat.c: Include "ppc-linux-tdep.h".
(PT_ORIG_R3, PT_TRAP): Define if necessary.
(ppc_register_u_addr): Handle orig_r3 and trap registers.
(fetch_ppc_registers): Likewise.
(store_ppc_registers): Likewise.
(store_register): Likewise.
(ppc_linux_read_description): Check whether AltiVec is supported.
Check whether inferior is 32-bit or 64-bit. Return the appropriate
Linux target description.
* features/Makefile (WHICH): Use rs6000/powerpc-32l and
rs6000/powerpc-altivec32l instead of rs6000/powerpc-32.
Use rs6000/powerpc-64l and rs6000/powerpc-altivec64l instead
of rs6000/powerpc-64. Use rs6000/powerpc-e500l instead of
rs6000/powerpc-e500. Update -expedite variables accordingly.
* features/rs6000/power-spe.xml: Use regnum 73 for "acc".
* features/rs6000/powerpc-32.xml: Do not include power-altivec.xml.
* features/rs6000/powerpc-64.xml: Do not include power-altivec.xml.
* features/rs6000/powerpc-e500.c: Regenerate.
* features/rs6000/powerpc-32.c: Regenerate.
* features/rs6000/powerpc-64.c: Regenerate.
* features/rs6000/power-linux.xml: New file.
* features/rs6000/power64-linux.xml: New file.
* features/rs6000/powerpc-32l.xml: New file.
* features/rs6000/powerpc-altivec32l.xml: New file.
* features/rs6000/powerpc-64l.xml: New file.
* features/rs6000/powerpc-altivec64l.xml: New file.
* features/rs6000/powerpc-e500l.xml: New file.
* features/rs6000/powerpc-32l.c: New (generated) file.
* features/rs6000/powerpc-altivec32l.c: New (generated) file.
* features/rs6000/powerpc-64l.c: New (generated) file.
* features/rs6000/powerpc-altivec64l.c: New (generated) file.
* features/rs6000/powerpc-e500l.xml: New (generated) file.
* regformats/reg-ppc.dat: Remove.
* regformats/reg-ppc64.dat: Remove.
* regformats/rs6000/powerpc-32.dat: Remove.
* regformats/rs6000/powerpc-64.dat: Remove.
* regformats/rs6000/powerpc-e500.dat: Remove.
* regformats/rs6000/powerpc-32l.dat: New (generated) file.
* regformats/rs6000/powerpc-altivec32l.dat: New (generated) file.
* regformats/rs6000/powerpc-64l.dat: New (generated) file.
* regformats/rs6000/powerpc-altivec64l.dat: New (generated) file.
* regformats/rs6000/powerpc-e500l.dat: New (generated) file.
gdbserver/ChangeLog:
* configure.srv (powerpc*-*-linux*): Set srv_regobj to
powerpc-32l.o, powerpc-altivec32l.o, powerpc-e500l.o,
powerpc-64l.o, and powerpc-altivec64l.o.
Remove rs6000/powerpc-32.xml, rs6000/powerpc-64.xml, and
rs6000/powerpc-e500.xml; add rs6000/powerpc-32l.xml,
rs6000/powerpc-altivec32l.xml, rs6000/powerpc-e500l.xml,
rs6000/powerpc-64l.xml, rs6000/powerpc-altivec64l.xml,
rs6000/power-linux.xml, and rs6000/power64-linux.xml
to srv_xmlfiles.
* Makefile.in (reg-ppc.o, reg-ppc.c): Remove, replace by ...
(powerpc-32l.o, powerpc-32l.c): ... these new rules.
(powerpc-32.o, powerpc-32.c): Remove, replace by ...
(powerpc-altivec32l.o, powerpc-altivec32l.c): ... these new rules.
(powerpc-e500.o, powerpc-e500.c): Remove, replace by ...
(powerpc-e500l.o, powerpc-e500l.c): ... these new rules.
(reg-ppc64.o, reg-ppc64.c): Remove, replace by ...
(powerpc-64l.o, powerpc-64l.c): ... these new rules.
(powerpc-64.o, powerpc-64.c): Remove, replace by ...
(powerpc-altivec64l.o, powerpc-altivec64l.c): ... these new rules.
(clean): Update.
* linux-ppc-low.c (init_registers_ppc): Remove, replace by ...
(init_registers_powerpc_32l): ... this new prototype.
(init_registers_powerpc_32): Remove, replace by ...
(init_registers_powerpc_altivec32l): ... this new prototype.
(init_registers_powerpc_e500): Remove, replace by ...
(init_registers_powerpc_e500l): ... this new prototype.
(init_registers_ppc64): Remove, replace by ...
(init_registers_powerpc_64l): ... this new prototype.
(init_registers_powerpc_64): Remove, replace by ...
(init_registers_powerpc_altivec64l): ... this new prototype.
(ppc_num_regs): Set to 73.
(PT_ORIG_R3, PT_TRAP): Define if necessary.
(ppc_regmap, ppc_regmap_e500): Add values for orig_r3 and trap.
(ppc_cannot_store_register): Handle orig_r3 and trap.
(ppc_arch_setup): Update init_registers_... calls.
(ppc_fill_gregset): Handle orig_r3 and trap.
* inferiors.c (clear_inferiors): Reset current_inferior.
Thiago Jung Bauermann <bauerman@br.ibm.com>
* infcmd.c (default_print_registers_info): Also print hex
raw contents for TYPE_CODE_DECFLOAT registers.
* ppc-tdep.h (gdbarch_tdep): Add ppc_dl0_regnum member.
* rs6000-tdep.c (IS_DFP_PSEUDOREG): New macro.
(rs6000_register_name): Add support for DFP pseudo-registers.
(rs6000_pseudo_register_type): Likewise.
rs6000_pseudo_register_reggroup_p): Likewise.
(ppc_pseudo_register_read): New function.
(ppc_pseudo_register_write): Likewise.
(rs6000_pseudo_register_read): Likewise.
(rs6000_pseudo_register_write): Likewise.
(e500_pseudo_register_read): Move checks to
rs6000_pseudo_register_read.
(e500_pseudo_register_write): Move checks to
rs6000_pseudo_register_write.
(rs6000_gdbarch_init): Initialize tdep->ppc_dl0_regnum. Install
rs6000_pseudo_register_read and rs6000_pseudo_register_write
in gdbarch if SPE or DFP is available. Adjust gdbarch's
num_pseudo_regs to account for DFP pseudo regs.
* rs6000-tdep.c (IS_SPE_PSEUDOREG): New macro.
(spe_register_p, rs6000_register_name, rs6000_pseudo_register_type,
rs6000_pseudo_register_reggroup_p, e500_move_ev_register,
e500_pseudo_register_read, e500_pseudo_register_write): Use
IS_SPE_PSEUDOREG macro.
(rs6000_frame_cache): Remove use of tdep->ppc_ev31_regnum.
(rs6000_gdbarch_init): Remove unnecessary num_sprs local variable.
Remove initialization of tdep->ppc_ev31_regnum.
(alpha_sigtramp_register_address): Add gdbarch as parameter. Replace
current_gdbarch by gdbarch.
(alpha_heuristic_frame_unwind_cache): Use get_frame_arch to get at the
current architecture by frame_info. Update alpha_heuristic_proc_start
call.
(alpha_sigtramp_frame_this_id, alpha_sigtramp_frame_prev_register): Use
get_frame_arch to get at the current architecture by frame_info. Update
alpha_sigtramp_register_address call.
* arm-tdep.c (thumb_scan_prologue): Add gdbarch as parameter and replace
current_gdbarch by gdbarch. Update caller.
(convert_to_extended, convert_from_extended): Add endianess parameter
for comparison. Update caller.
(arm_extract_return_value, arm_store_return_value): Use
get_regcache_arch to get at the current architecture.
* cris-tdep.c (cris_register_size): Add gdbarch as parameter. Replace
current_gdbarch by gdbarch. Update caller.
(cris_gdb_func, move_to_preg_op, none_reg_mode_move_from_preg_op): Add
gdbarch as parameter. Update caller. Replace current_gdbarch by gdbarch.
* h8300-tdep.c (E_PSEUDO_CCR_REGNUM, E_PSEUDO_EXR_REGNUM, BINWORD): Add
gdbarch as parameter. Update caller.
(h8300_init_frame_cache): Add gdbarch as parameter. Replace
current_gdbarch by gdbarch. Update caller.
* hppa-tdep.c (skip_prologue_hard_way): Add gdbarch as parameter and
update caller. Replace current_gdbarch by gdbarch.
* m32c-tdep.c (m32c_skip_trampoline_code): Use get_frame_arch to get at
the current architecture. Replace current_gdbarch by gdbarch.
* m68hc11-tdep.c (m68hc11_frame_unwind_cache): Likewise.
(STACK_CORRECTION, USE_PAGE_REGISTER): Replace M6811_TDEP by its
expression. Add gdbarch as parameter and replace current_gdbarch with
it. Update caller.
(M6811_TDEP): Remove.
(m68hc11_frame_prev_register): Use get_frame_arch to get at the current
architecture.
(m68hc11_scan_prologue): Add gdbarch as parameter. Replace
current_gdbarch by gdbarch. Update caller.
* m68k-tdep.c (m68k_analyze_prologue): Add gdbarch as parameter and
update caller.
(m68k_analyze_register_saves): Likewise. Also replace current_gdbarch
by gdbarch.
* rs6000-tdep.c (skip_prologue): Add gdbarch as parameter and update
caller. Relace current_gdbarch by gdbarch.
(altivec_register_p, spe_register_p): Likewise.
* ppc-tdep.h (altivec_register_p, spe_register_p): Add gdbarch as
parameter.
* ppc-linux-nat.c (fetch_register, store_register): Update caller of
altivec_register_p and spe_register_p.
* score-tdep.c (score_fetch_inst): Add gdbarch as parameter. Update
caller. Replace current_gdbarch by gdbarch.
(score_analyze_prologue): use get_frame_arch to get at the current
architecture.
* sparc-tdep.h (sparc_analyze_prologue): Add gdbarch as parameter.
* sparc-tdep.c (sparc_analyze_prologue): Likewise. Replace
current_gdbarch by gdbarch. Update caller.
(sparc_frame_cache): Use get_frame_arch to get at the current
architecture.
* sparce64-tdep.c (sparc64_skip_prologue): Update call of
sparc_analyze_prologue.
* mn10300-tdep.c (mn10300_dwarf2_reg_to_regnum): Add gdbarch as
parameter.
soft float and vector ABIs. Support the generic vector ABI for
AltiVec types.
(do_ppc_sysv_return_value): Likewise. Correct argument types and
casts.
(ppc64_sysv_abi_push_dummy_call): Assert that floating point is
supported.
* ppc-tdep.h (enum powerpc_vector_abi): New.
(struct gdbarch_tdep): Add soft_float and vector_abi.
* rs6000-tdep.c (setpowerpccmdlist, showpowerpccmdlist)
(powerpc_soft_float_global, powerpc_vector_strings)
(powerpc_vector_abi_global, powerpc_vector_abi_string): New.
(rs6000_gdbarch_init): Check for soft-float and vector ABI markings.
(set_powerpc_command, show_powerpc_command, powerpc_set_soft_float)
(powerpc_set_vector_abi): New.
(_initialize_rs6000_tdep): Register "set powerpc" and "show powerpc"
commands.
* Makefile.in (elf_ppc_h): New.
(rs6000-tdep.o): Update.
* gdb.texinfo (PowerPC): Document "set powerpc vector-abi" and "set
powerpc soft-float".
* gdb.arch/altivec-abi.exp: Run multiple times for GCC on GNU/Linux.
Test "set powerpc vector-abi". Skip auto-detection tests for old
toolchains.
(supply_gregset): Use ppc_supply_gregset.
(supply_fpregset): Use ppc_supply_fpregset.
(fill_gregset): Use ppc_collect_gregset.
(fill_fpregset): Use ppc_collect_fpregset.
* ppc-linux-tdep.c (PPC_LINUX_PT_*): Don't define.
(right_supply_register, ppc_linux_supply_gregset): Delete.
(ppc32_linux_supply_gregset, ppc64_linux_supply_gregset): Delete.
(ppc_linux_supply_fpregset): Delete.
(ppc_linux_collect_gregset): New function.
(ppc32_linux_reg_offsets, ppc64_linux_reg_offsets): New.
(ppc32_linux_gregset, ppc64_linux_gregset): Update to use reg offsets,
ppc_linux_supply_gregset, and ppc_collect_gregset.
(ppc_linux_fpregset): Rename to ppc32_linux_fpregset and update.
(ppc_linux_gregset, ppc_linux_fpregset): New functions.
(ppc_linux_regset_from_core_section): Update.
* ppc-tdep.h (ppc_linux_gregset, ppc_linux_fpregset): Declare.
(ppc_linux_supply_gregset, ppc_linux_supply_fpregset): Delete.
(struct ppc_reg_offsets): Add gpr_size, xr_size, fpscr_size fields.
* ppcobsd-tdep.c (ppcobsd_supply_gregset): Delete FIXME and assert.
(ppcobsd_collect_gregset): Likewise.
(_initialize_ppcnbsd_tdep): Init gpr_size, xr_size, fpscr_size.
* ppcnbsd-tdep.c (_initialize_ppcobsd_tdep): Likewise.
* ppcobsd-nat.c (_initialize_ppcobsd_nat): Likewise.
* rs6000-aix-tdep.c (rs6000_aix32_reg_offsets): Likewise.
(rs6000_aix64_reg_offsets): Likewise.
(rs6000_aix_supply_regset): Call ppc_supply_fpregset without testing
ppc_floating_point_unit_p.
(rs6000_aix_collect_regset): Similarly.
* rs6000-tdep.c (ppc_supply_reg): Add regsize param. Adjust offset
when regsize is larger than regcache register size.
(ppc_collect_reg): Similarly zero pad when regsize is larger than
regcache register size.
(ppc_greg_offset): New function, split out from..
(ppc_supply_gregset): ..here. Separate code handling all regs from
single reg case. Correct xer offset.
(ppc_fpreg_offset): New function, split out from..
(ppc_supply_fpregset): ..here. Separate code handling all regs from
single reg case.
(ppc_collect_gregset, ppc_collect_fpregset): Likewise.
(ppc_supply_fpregset, ppc_collect_fpregset): Don't assert we have
a fp unit, instead return if no fp.
builtin_type_v2_int64, builtin_type_v4_int32, builtin_type_v8_int16,
builtin_type_v16_int8, builtin_type_v2_float, builtin_type_v2_int32,
builtin_type_v4_int16, builtin_type_v8_int8, builtin_type_v4sf,
builtin_type_v4si, builtin_type_v16qi, builtin_type_v8qi,
builtin_type_v8hi, builtin_type_v4hi, builtin_type_v2si,
builtin_type_vec64, builtin_type_vec128): Remove.
(init_simd_type): Remove.
(init_vector_type): Make global.
(build_builtin_type_vec64, build_builtin_type_vec128): Remove.
(build_gdbtypes): Do not build vector types.
(_initialize_gdbtypes): Do not swap vector types.
* gdbtypes.h (builtin_type_v2_double, builtin_type_v4_float,
builtin_type_v2_int64, builtin_type_v4_int32, builtin_type_v8_int16,
builtin_type_v16_int8, builtin_type_v2_float, builtin_type_v2_int32,
builtin_type_v4_int16, builtin_type_v8_int8, builtin_type_v4sf,
builtin_type_v4si, builtin_type_v16qi, builtin_type_v8qi,
builtin_type_v8hi, builtin_type_v4hi, builtin_type_v2si,
builtin_type_vec64, builtin_type_vec128): Remove declarations.
(init_vector_type): Add prototype.
* i386-tdep.h (struct gdbarch_tdep): Add i386_mmx_type and
i386_sse_type members.
(i386_mmx_type, i386_sse_type): Change from variables to functions.
* i386-tdep.c (i386_mmx_type, i386_sse_type): Remove variables.
(i386_init_types): Do not build vector types.
(i386_mmx_type, i386_sse_type): New functions.
(i386_register_type): Call them instead of using global variables.
(i386_gdbarch_init): Use XCALLOC to allocate tdep structure.
* amd64-tdep.c (amd64_register_type): Call i386_sse_type instead
of using global variable.
* rs6000-tdep.h (struct gdbarch_tdep): Add ppc_builtin_type_vec64
and ppc_builtin_type_vec128 members.
* rs6000-tdep.c (rs6000_builtin_type_vec64): New function.
(rs6000_builtin_type_vec128): Likewise.
(rs6000_register_type): Call them instead of using builtin_type_vec64
and builtin_type_vec128.
(rs6000_gdbarch_init): Use XCALLOC to allocate tdep structure.
* spu-tdep.c (struct gdbarch_tdep): New data type.
(spu_builtin_type_vec128): Remove variable.
(spu_builtin_type_vec128): New function.
(spu_register_type): Call it instead of using global variable.
(spu_gdbarch_init): Allocate tdep structure.
(spu_init_vector_type): Remove function.
(_initialize_spu_tdep): Do not call it.
* ppc-tdep.h (PPC_MAX_EPILOGUE_INSTRUCTIONS): New define.
* rs6000-tdep.c (insn_changes_sp_or_jumps)
(rs6000_in_function_epilogue_p): New functions.
(rs6000_gdbarch_init): Set in_function_epilogue_p.
* ppc-tdep.h (struct gdbarch_tdep): Better explanation of using
-1 for nonexistant registers.
* rs6000-tdep.c (rs6000_register_reggroup_p): Don't assume that
tdep->ppc_vr0_regnum and tdep->ppc_ev0_regnum are not -1.