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Some of the top level (i.e. those that contain the <target> element)
xml files in gdb/features/ are clearly Linux only. I conclude this
based on the files names containing the string "linux".
I think that all of these files should have the <osabi> element
included with the value "GNU/Linux".
This commits adds the <osabi> element where I believe it is
appropriate and regenerates the associated .c files.
The benefit of this change is that gdbserver, which makes use of these
files, will now send the osabi back in more cases. Sending back more
descriptive target descriptions is a good thing as this makes it
easier for GDB to select the correct gdbarch.
Approved-By: Kevin Buettner <kevinb@redhat.com>
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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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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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While fiddling a bit with -Wunused-variable, Sergio noticed that "maint
print c-tdesc" was always generating code for the "tdesc_type
*field_type" variable, even when it wasn't used. This is caught by GCC
when using -Wunused-variable, of course.
This patch changes the print_c_tdesc class to only output the field
declaration when we actually need it.
It shouldn't be necessary to do the same with the other variable
declarations (type_with_fields and element_type), because they are
always if they are declared.
The C files in features/ are regenerated, some declarations of
field_type are removed, as expected, while some others move to where
they are used for the first time.
gdb/ChangeLog:
* target-descriptions.c (print_c_tdesc) <visit>: Don't output
field_type declaration, use printf_field_type_assignment
instead.
<printf_field_type_assignment>: New method.
* features/aarch64-core.c, features/aarch64-fpu.c
features/arc-arcompact.c, features/arc-v2.c,
features/arm/arm-with-iwmmxt.c, features/i386/32bit-core.c,
features/i386/32bit-mpx.c, features/i386/32bit-sse.c,
features/i386/64bit-avx512.c, features/i386/64bit-core.c,
features/i386/64bit-mpx.c, features/i386/64bit-sse.c,
features/i386/x32-core.c, features/or1k.c,
features/rs6000/powerpc-7400.c,
features/rs6000/powerpc-altivec32.c,
features/rs6000/powerpc-altivec32l.c,
features/rs6000/powerpc-altivec64.c,
features/rs6000/powerpc-altivec64l.c,
features/rs6000/powerpc-cell32l.c,
features/rs6000/powerpc-cell64l.c,
features/rs6000/powerpc-isa205-altivec32l.c,
features/rs6000/powerpc-isa205-altivec64l.c,
features/rs6000/powerpc-isa205-vsx32l.c,
features/rs6000/powerpc-isa205-vsx64l.c,
features/rs6000/powerpc-vsx32.c,
features/rs6000/powerpc-vsx32l.c,
features/rs6000/powerpc-vsx64.c,
features/rs6000/powerpc-vsx64l.c, features/s390-gs-linux64.c,
features/s390-tevx-linux64.c, features/s390-vx-linux64.c,
features/s390x-gs-linux64.c, features/s390x-tevx-linux64.c,
features/s390x-vx-linux64.c: Re-generate.
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This patch makes tdesc_type an abstract base class and creates three
subclasses:
- tdesc_type_builtin, for builtin types
- tdesc_type_vector, for vector types
- tdesc_type_with_fields, for struct, union, flag and enum types
This allows getting rid of the union in tdesc_type and to not allow the
std::vector separately. I tried to go further and create separate
classes for struct, union, flag and enum, but it proved too difficult.
One problem is that from the point of the of the target description
code, the types tdesc_type_* are opaque (only forward-declared).
Therefore, it doesn't know about inheritance relationship between those
classes. This makes it impossible to make functions that accept a
pointer to a base class and pass a pointer to a derived class, for
example. I think this patch here is a good compromise, and if somebody
wants to improve things further, the door is open.
A make_gdb_type virtual pure method is added to tdesc_type, which
replaces the current tdesc_gdb_type function. Calling this method on a
tdesc_type returns the corresponding built gdb type.
gdb/ChangeLog:
* target-descriptions.c (struct tdesc_type): Use default
destructor.
<u>: Remove.
<accept>: Remove.
(struct tdesc_type_builtin): New.
(struct tdesc_type_vector): New.
(struct tdesc_type_with_fields): New.
(tdesc_predefined_types): Change type to tdesc_type_builtin[].
(tdesc_gdb_type): Remove.
(tdesc_register_type): Adjust.
(tdesc_create_vector): Create tdesc_type_vector.
(tdesc_create_struct): Create tdesc_type_with_fields.
(tdesc_set_struct_size): Change parameter type.
(tdesc_create_union): Create tdesc_type_with_fields.
(tdesc_create_flags): Likewise.
(tdesc_create_enum): Likewise.
(tdesc_add_field): Change parameter type.
(tdesc_add_typed_bitfield): Likewise.
(tdesc_add_bitfield): Likewise.
(tdesc_add_flag): Likewise.
(tdesc_add_enum_value): Likewise.
(print_c_tdesc) <visit>: Remove overload with tdesc_type
parameter, add overloads for tdesc_type_builtin,
tdesc_type_with_fields and tdesc_type_vector.
<m_printed_type>: Remove.
<m_printed_element_type, m_printed_type_with_fields>: Add.
* target-descriptions.h (tdesc_create_enum): Change return type.
(tdesc_add_typed_bitfield): Change parameter type.
(tdesc_add_enum_value): Change parameter type.
* xml-tdesc.c (struct tdesc_parsing_data) <current_type>: Change
type to tdesc_type_with_fields.
(tdesc_start_struct): Adjust.
(tdesc_start_flags): Adjust.
(tdesc_start_enum): Adjust.
(tdesc_start_field): Adjust.
* arch/tdesc.h (struct tdesc_type_builtin): Forward-declare.
(struct tdesc_type_vector): Forward-declare.
(struct tdesc_type_with_fields): Forward-declare.
(tdesc_create_struct): Change return type.
(tdesc_create_union): Likewise.
(tdesc_create_flags): Likewise.
(tdesc_add_field): Change parameter type.
(tdesc_set_struct_size): Likewise.
(tdesc_add_bitfield): Likewise.
(tdesc_add_flag): Likewise.
* features: Re-generate C files.
gdb/gdbserver/ChangeLog:
* tdesc.c (struct tdesc_type): Change return type.
(tdesc_add_flag): Change parameter type.
(tdesc_add_bitfield): Likewise.
(tdesc_add_field): Likewise.
(tdesc_set_struct_size): Likewise.
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gdb:
2017-10-13 Yao Qi <yao.qi@linaro.org>
* features/s390-gs-linux64.c: Regenerated.
* features/s390x-gs-linux64.c: Regenerated.
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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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