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Now that defs.h, server.h and common-defs.h are included via the
`-include` option, it is no longer necessary for source files to include
them. Remove all the inclusions of these files I could find. Update
the generation scripts where relevant.
Change-Id: Ia026cff269c1b7ae7386dd3619bc9bb6a5332837
Approved-By: Pedro Alves <pedro@palves.net>
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This patch changes various global target_desc declarations to const, thereby
correcting a prominent source of ODR violations in PowerPC-related target code.
The majority of files/changes are mechanical const-ifications accomplished by
regenerating the C files in features/.
This also required manually updating mips-linux-tdep.h, s390-linux-tdep.h,
nios2-tdep.h, s390-tdep.h, arch/ppc-linux-tdesc.h, arch/ppc-linux-common.c,
and rs6000-tdep.c.
Patch tested against the sourceware trybot, and fully regression tested against
our (Red Hat's) internal test infrastructure on Rawhide aarch64, s390x, x86_64,
and powerpcle.
With this patch, I can finally enable LTO in our GDB package builds. [Tested
with a rawhide scratch build containing this patch.]
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=22395
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=24835
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GDB has two approaches to generating the target descriptions found in
gdb/features/, the whole description approach, where the XML file
contains a complete target description which is then used to generate
a single C file that builds that target description. Or, the split
feature approach, where the XML files contain a single target feature,
each feature results in a single C file to create that one feature,
and then a manually written C file is used to build a complete target
description from individual features.
There's a Makefile, gdb/features/Makefile, which is responsible for
managing the regeneration of the C files from the XML files.
However, some of the logic that selects between the whole description
approach, or the split feature approach, is actually hard-coded into
GDB, inside target-descriptions.c:maint_print_c_tdesc_cmd we check the
path to the incoming XML file and use this to choose which type of C
file we should generate.
This commit removes this hard coding from GDB, and makes the Makefile
entirely responsible for choosing the approach. This makes sense as
the Makefile already has the XML files partitioned based on which
approach they should use.
In order to allow this change the 'maint print c-tdesc' command is
given a new command option '-single-feature', which tells GDB which
type of C file should be created. The makefile now supplies this flag
to GDB.
This did reveal a bug in features/Makefile, the rx.xml file was in the
wrong list, this didn't matter previously as the actual choice of
which approach to use was done in GDB. Now the Makefile decides, so
placing each XML file in the correct list is critical.
Tested this by doing 'make GDB=/path/to/gdb clean-cfiles cfiles' to
regenerate all the C files from their XML source. There are no
changes after this commit.
gdb/ChangeLog:
* features/Makefile (XMLTOC): Add rx.xml.
(FEATURE_XMLFILES): Remove rx.xml.
(FEATURE_CFILES rule): Pass '-single-feature' flag.
* features/rx.c: Regenerate.
* features/rx.xml: Wrap in `target` tags, and reindent.
* target-descriptions.c (struct maint_print_c_tdesc_options): New
structure.
(maint_print_c_tdesc_opt_def): New typedef.
(maint_print_c_tdesc_opt_defs): New static global.
(make_maint_print_c_tdesc_options_def_group): New function.
(maint_print_c_tdesc_cmd): Make use of command line flags, only
print single feature C file for target descriptions containing a
single feature.
(maint_print_c_tdesc_cmd_completer): New function.
(_initialize_target_descriptions): Update call to register command
completer, and include command line flag in help text.
gdb/doc/ChangeLog:
* gdb.texinfo (Maintenance Commands): Update description of 'maint
print c-tdesc'.
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Update allocate_target_description to return a target_desc_up, a
specialisation of unique_ptr.
This commit does not attempt to make use of the unique_ptr in the
best possible way, in almost all cases we immediately release the
pointer from within the unique_ptr and then continue as before.
There are a few places where it was easy to handle the unique_ptr, and
in these cases I've done that.
Everything under gdb/features/* is auto-regenerated.
There should be no user visible changes after this commit.
gdb/ChangeLog:
* arch/aarch32.c (aarch32_create_target_description): Release
unique_ptr returned from allocate_target_description.
* arch/aarch64.c (aarch64_create_target_description): Likewise.
* arch/amd64.c (amd64_create_target_description): Likewise.
* arch/arc.c (arc_create_target_description): Likewise.
* arch/arm.c (arm_create_target_description): Likewise.
* arch/i386.c (i386_create_target_description): Likewise.
* arch/riscv.c (riscv_create_target_description): Update return
type. Handle allocate_target_description returning a unique_ptr.
(riscv_lookup_target_description): Update to handle unique_ptr.
* arch/tic6x.c (tic6x_create_target_description): Release
unique_ptr returned from allocate_target_description.
* features/microblaze-with-stack-protect.c: Regenerate.
* features/microblaze.c: Regenerate.
* features/mips-dsp-linux.c: Regenerate.
* features/mips-linux.c: Regenerate.
* features/mips64-dsp-linux.c: Regenerate.
* features/mips64-linux.c: Regenerate.
* features/nds32.c: Regenerate.
* features/nios2.c: Regenerate.
* features/or1k.c: Regenerate.
* features/rs6000/powerpc-32.c: Regenerate.
* features/rs6000/powerpc-32l.c: Regenerate.
* features/rs6000/powerpc-403.c: Regenerate.
* features/rs6000/powerpc-403gc.c: Regenerate.
* features/rs6000/powerpc-405.c: Regenerate.
* features/rs6000/powerpc-505.c: Regenerate.
* features/rs6000/powerpc-601.c: Regenerate.
* features/rs6000/powerpc-602.c: Regenerate.
* features/rs6000/powerpc-603.c: Regenerate.
* features/rs6000/powerpc-604.c: Regenerate.
* features/rs6000/powerpc-64.c: Regenerate.
* features/rs6000/powerpc-64l.c: Regenerate.
* features/rs6000/powerpc-7400.c: Regenerate.
* features/rs6000/powerpc-750.c: Regenerate.
* features/rs6000/powerpc-860.c: Regenerate.
* features/rs6000/powerpc-altivec32.c: Regenerate.
* features/rs6000/powerpc-altivec32l.c: Regenerate.
* features/rs6000/powerpc-altivec64.c: Regenerate.
* features/rs6000/powerpc-altivec64l.c: Regenerate.
* features/rs6000/powerpc-e500.c: Regenerate.
* features/rs6000/powerpc-e500l.c: Regenerate.
* features/rs6000/powerpc-isa205-32l.c: Regenerate.
* features/rs6000/powerpc-isa205-64l.c: Regenerate.
* features/rs6000/powerpc-isa205-altivec32l.c: Regenerate.
* features/rs6000/powerpc-isa205-altivec64l.c: Regenerate.
* features/rs6000/powerpc-isa205-ppr-dscr-vsx32l.c: Regenerate.
* features/rs6000/powerpc-isa205-ppr-dscr-vsx64l.c: Regenerate.
* features/rs6000/powerpc-isa205-vsx32l.c: Regenerate.
* features/rs6000/powerpc-isa205-vsx64l.c: Regenerate.
* features/rs6000/powerpc-isa207-htm-vsx32l.c: Regenerate.
* features/rs6000/powerpc-isa207-htm-vsx64l.c: Regenerate.
* features/rs6000/powerpc-isa207-vsx32l.c: Regenerate.
* features/rs6000/powerpc-isa207-vsx64l.c: Regenerate.
* features/rs6000/powerpc-vsx32.c: Regenerate.
* features/rs6000/powerpc-vsx32l.c: Regenerate.
* features/rs6000/powerpc-vsx64.c: Regenerate.
* features/rs6000/powerpc-vsx64l.c: Regenerate.
* features/rs6000/rs6000.c: Regenerate.
* features/rx.c: Regenerate.
* features/s390-gs-linux64.c: Regenerate.
* features/s390-linux32.c: Regenerate.
* features/s390-linux32v1.c: Regenerate.
* features/s390-linux32v2.c: Regenerate.
* features/s390-linux64.c: Regenerate.
* features/s390-linux64v1.c: Regenerate.
* features/s390-linux64v2.c: Regenerate.
* features/s390-te-linux64.c: Regenerate.
* features/s390-tevx-linux64.c: Regenerate.
* features/s390-vx-linux64.c: Regenerate.
* features/s390x-gs-linux64.c: Regenerate.
* features/s390x-linux64.c: Regenerate.
* features/s390x-linux64v1.c: Regenerate.
* features/s390x-linux64v2.c: Regenerate.
* features/s390x-te-linux64.c: Regenerate.
* features/s390x-tevx-linux64.c: Regenerate.
* features/s390x-vx-linux64.c: Regenerate.
* mips-tdep.c (_initialize_mips_tdep): Release unique_ptr returned
from allocate_target_description.
* target-descriptions.c (allocate_target_description): Update
return type.
(print_c_tdesc::visit_pre): Release unique_ptr returned from
allocate_target_description.
gdbserver/ChangeLog:
* linux-low.cc (linux_process_target::handle_extended_wait):
Release the unique_ptr returned from allocate_target_description.
* linux-riscv-low.cc (riscv_target::low_arch_setup): Likewise.
* linux-x86-low.cc (tdesc_amd64_linux_no_xml): Change type.
(tdesc_i386_linux_no_xml): Change type.
(x86_linux_read_description): Borrow pointer from unique_ptr
object.
(x86_target::get_ipa_tdesc_idx): Likewise.
(initialize_low_arch): Likewise.
* tdesc.cc (allocate_target_description): Update return type.
gdbsupport/ChangeLog:
* tdesc.h (allocate_target_description): Update return type.
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gdb/ChangeLog
2019-08-25 Yoshinori Sato <ysato@users.sourceforge.jp>
* gdb/rx-tdep.c (rx_register_names): New.
(rx_register_name): Delete.
(rx_psw_type): Delete.
(rx_fpsw_type): Delete.
(rx_register_type): Delete.
(rx_gdbarch_init): Convert target-descriptions.
(_initialize_rx_tdep): Add initialize_tdesc_rx.
* gdb/features/Makefile: Add rx.xml.
* gdb/features/rx.xml: New.
* gdb/features/rx.c: Generated.
* gdb/NEWS: Mention target description support.
gdb/doc/ChangeLog:
2019-08-25 Yoshinori Sato <ysato@users.sourceforge.jp>
* gdb.texinfo (Standard Target Features): Add RX Features sub-section.
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