| Age | Commit message (Collapse) | Author | Files | Lines |
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Add documentation about -fharden-control-flow-redundancy.
gcc/ada/
* doc/gnat_rm/security_hardening_features.rst: Add subsection on
Control Flow Redundancy.
* gnat_rm.texi: Regenerate.
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Similar to a recent removal of obsolete uses of Unchecked_Deallocation.
In Ada 83 the Unchecked_Conversion was a top-level unit; since Ada 95 it
is an obsolete renaming of Ada.Unchecked_Conversion. GNAT doesn't warn
yet about uses of these obsolete renamings, but it still seems better to
avoid them.
gcc/ada/
* atree.adb, gen_il-gen.adb, osint.adb, set_targ.adb,
sinput.adb, table.adb, treepr.adb, types.ads: Replace uses of
Unchecked_Conversion in the compiler itself.
* libgnarl/a-reatim.adb, libgnarl/s-osinte__gnu.ads,
libgnarl/s-osinte__kfreebsd-gnu.ads, libgnat/a-coboho.adb,
libgnat/a-stuten.ads, libgnat/s-putima.adb: Likewise in the
runtime.
* doc/gnat_ugn/gnat_and_program_execution.rst: Likewise in
documentation.
* gnat_ugn.texi: Regenerate.
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In Ada 83 the Unchecked_Deallocation was a top-level unit; since Ada 95
it is an obsolete renaming of Ada.Unchecked_Deallocation. GNAT doesn't
yet warn about uses of these obsolete renamings, but it still seems
better to avoid them.
Cleanup before adding a new instance of Unchecked_Deallocation.
Offending occurrences found with grep.
gcc/ada/
* butil.adb, sem.adb, sinput.adb, types.ads, xref_lib.adb:
Replace uses of Unchecked_Deallocation with
Ada.Unchecked_Deallocation.
* doc/gnat_ugn/gnat_and_program_execution.rst: Likewise for the
documentation; fix casing of GNAT.IO.
* gnat_ugn.texi: Regenerate.
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gcc/ada/
* doc/gnat_ugn/the_gnat_compilation_model.rst: Fix URL.
* gnat_ugn.texi: Regenerate.
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Implement and document hardened booleans, from nonstandard boolean types
with representation clauses to the extra validity checking performed on
boolean types annotated with the "hardbool" Machine_Attribute pragma.
gcc/ada/
* doc/gnat_rm/security_hardening_features.rst (Hardened
Booleans): New.
* exp_util.adb (Adjust_Condition): Perform validity checking on
hardbool-annotated types even with -gnatVT.
* gnat_rm.texi: Regenerate.
* gcc-interface/utils.cc (gnat_internal_attribute_table): Ignore
hardbool.
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Documentation cleanup. Spotted while looking at description of
configuration pragmas.
gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst:
(Export_Object, Import_Object, Short_Descriptors): Fix pragma
syntax specification.
* gnat_rm.texi: Regenerate.
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Pragma Aggregate_Individually_Assign was apparently forgotten to be
listed in the GNAT User's Guide as a configuration pragma.
gcc/ada/
* doc/gnat_ugn/the_gnat_compilation_model.rst (Configuration
Pragmas): Add Aggregate_Individually_Assign; otherwise the list
is complete except for some obsoleted pragmas, which most likely
are intentionally omitted.
* gnat_ugn.texi: Regenerate.
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Unbalanced parens can be found when editing in emacs using the
"check-parens" command. Offending occurrences must be examined manually,
because few of them are intentional.
Minor cleanup of typos in documentation.
gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst,
doc/gnat_rm/implementation_of_specific_ada_features.rst,
doc/gnat_rm/representation_clauses_and_pragmas.rst,
doc/gnat_rm/the_gnat_library.rst,
doc/gnat_rm/the_implementation_of_standard_i_o.rst,
doc/gnat_ugn/building_executable_programs_with_gnat.rst,
doc/gnat_ugn/gnat_and_program_execution.rst,
doc/gnat_ugn/platform_specific_information.rst: Fix unbalanced
parentheses and brackets.
* sem_prag.adb (pragma Obsolescent): Likewise.
* gnat_rm.texi, gnat_ugn.texi: Regenerate.
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Add new configuration restriction No_Local_Tagged_Types. This new
restriction ensures at compile time that all tagged types are only
declared at the library level.
gcc/ada/
* libgnat/s-rident.ads (Restriction_Id): Add
No_Local_Tagged_Types, update comment for adding new GNAT
specific restriction.
* restrict.ads (Implementation_Restriction): Add
No_Local_Tagged_Types.
* sem_ch3.adb (Analyze_Full_Type_Declaration): Add check for
tagged type at library level.
* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
Add No_Local_Tagged_Types description.
* gnat_rm.texi: Regenerate.
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On SUSE 15, glibc-locale-base-32bit is needed to run 32bit versions
of Libadalang tools.
gcc/ada/
* doc/gnat_ugn/platform_specific_information.rst: Add
glibc-locale-base-32bit as a dependency in SUSE distributions.
* gnat_ugn.texi: Regenerate.
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Only enhancement of formatting.
gcc/ada/
* doc/gnat_ugn/gnat_and_program_execution.rst,
doc/gnat_ugn/gnat_utility_programs.rst,
doc/gnat_ugn/inline_assembler.rst: Fix typos and formatting
glitches.
* gnat_ugn.texi: Regenerate.
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Only enhancement of formatting.
gcc/ada/
* doc/gnat_ugn/elaboration_order_handling_in_gnat.rst: Change
blocks from plain code to Ada.
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Tables with small left columns and large right columns had colliding
text in the PDF version of GNAT RM.
Spotted while adding description of pragma Ada_2022.
gcc/ada/
* doc/gnat_rm/implementation_defined_characteristics.rst: Add
tabularcolums directive, as explained in documentation of Sphinx
and tabular LaTeX package.
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Remove extra whitespace in examples of pragmas and aspects.
Spotted while adding description of pragma Ada_2022.
gcc/ada/
* doc/gnat_rm/implementation_defined_aspects.rst,
doc/gnat_rm/implementation_defined_pragmas.rst: Remove extra
whitespace.
* gnat_rm.texi: Regenerate.
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Fix formatting of description lists, i.e. continuation lines are now
indented like their preceding lines.
Spotted while adding description of pragma Ada_2022.
gcc/ada/
* doc/gnat_rm/implementation_defined_characteristics.rst: Remove
extra indent in continuation lines; indent both descriptions of
Max_Picture_Length.
* gnat_rm.texi: Regenerate.
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Fix formatting of a nested bullet lists. Spotted while adding
description of pragma Ada_2022.
gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst (Pragma
Eliminate): Fix markup.
* gnat_rm.texi: Regenerate.
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Pragma Ada_2022 is similar to existing pragma Ada_2012 and similarly
deserves to be documented.
gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst (Pragma
Ada_2022): Copy description from pragma Ada 2012 and adapt.
* doc/gnat_ugn/the_gnat_compilation_model.rst (Configuration
Pragmas): List pragma Ada 2022.
* gnat_rm.texi, gnat_ugn.texi: Regenerate.
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In the case of an object declaration with an indefinite nominal subtype
(roughly speaking, that's an object that takes its bounds,
discriminants, and/or tag from its explicit initial value), GNAT does
not support address specifications unless the size of the object is
known at compile time. In some cases, such unsupported address
specifications were not properly rejected. This could lead to either an
internal error during compilation or (in the class-wide case) to a
warning accompanied by raising Program_Error at run time.
gcc/ada/
* sem_ch13.adb (Analyze_Attribute_Definition_Clause): Replace
the existing check for an address specification for an object of
a class-wide type with a more general check which rejects either
the class-wide case or the case where the FE would (if the
address specification were accepted) build a malformed
tree (specifically, an object renaming declaration with a
specified address). In the case where the check fails, reject
the construct at compile time instead of generating an
unconditional raise of Program_Error.
* doc/gnat_rm/representation_clauses_and_pragmas.rst: Update
documentation to reflect these changes.
* gnat_rm.texi: Regenerate.
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gcc/ada/
* doc/gnat_rm/implementation_defined_attributes.rst,
doc/gnat_ugn/the_gnat_compilation_model.rst: Fix typos.
* gnat_rm.texi, gnat_ugn.texi: Regenerate.
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A number of SPARK pragmas controlled by an optional Boolean expression
require those expressions to be static. This is now clarified in the
GNAT RM.
gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst
(Abstract_State, Async_Readers, Async_Writers,
Constant_After_Elaboration, Effective_Reads, Effective_Writes,
Extensions_Visible, Ghost, No_Caching, Volatile_Function): Only
static Boolean expressions are allowed.
* gnat_rm.texi: Regenerate.
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For warnings related to the Unreferenced, Unmodified, and Unused
aspects, refer to the "aspect", not the "pragma". Note that the aspect
can be set by an aspect_specification or a pragma, so the term "aspect"
is correct even in the pragma case. However, messages in sem_prag.adb
use Fix_Error, so they refer to "aspect" or "pragma". It's not clear
that we really ought to refer to "pragma", now that those are obsolete,
but de call Fix_Error for uniformity. We do not attempt to make
Fix_Error available outside sem_prag.adb -- too much trouble for
something that perhaps ought to be removed.
gcc/ada/
* lib-xref.adb, sem_util.adb: Change wording of warning messages
to use "aspect".
* sem_prag.adb: Use Fix_Error to change wording of warnings.
* doc/gnat_rm/implementation_defined_pragmas.rst: Minor: fix
cut&paste error.
* gnat_rm.texi: Regenerate.
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gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Remove gnattest
section.
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gcc/ada/
* doc/share/conf.py: Remove spurious call to ".decode()".
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gcc/ada/
* comperr.adb (Delete_SCIL_Files): Replace unnecessary
Unreferenced pragma with specific pragma Warnings.
* doc/gnat_rm/implementation_defined_pragmas.rst (Unreferenced):
Add documentation for new behavior.
* gnat_rm.texi: Regenerate.
* erroutc.adb (Set_At): Remove useless assignment.
* exp_ch2.adb (In_Assignment_Context): Deleted.
(Is_Object_Renaming_Name): Replace calls to Is_LHS with calls to
Known_To_Be_Assigned.
(Expand_Current_Value): Replace calls to May_Be_Lvalue with
calls to Known_To_Be_Assigned.
(Expand_Entry_Paramter): Replace calls to In_Assignment_Context
with calls to Known_To_Be_Assigned.
* exp_ch4.adb (Expand_N_Op_Rem): Remove unnecessary Unreferenced
pragma.
* exp_imgv.adb (Build_Enumeration_Image_Tables): Default
initialize S_N.
* ghost.adb (Check_Ghost_Policy): Replace call to May_Be_Lvalue
with call to Known_To_Be_Assigned.
* lib-xref.adb (Is_On_LHS): Deleted.
(OK_To_Set_Referenced): Rewrite subprogram to encompass the new
pragma Unreferenced behavior.
(Process_Deferred_References): Replace call to Is_LHS with call
to Known_To_Be_Assigned.
* libgnarl/s-taasde.adb, libgnarl/s-tasren.adb,
libgnarl/s-tpobop.adb, libgnat/a-calend.adb,
libgnat/a-calfor.adb, libgnat/a-cbdlli.adb,
libgnat/a-cbhama.adb, libgnat/a-cbhase.adb,
libgnat/a-cbmutr.adb, libgnat/a-cborma.adb,
libgnat/a-cborse.adb, libgnat/a-cdlili.adb,
libgnat/a-cfhama.adb, libgnat/a-cforse.adb,
libgnat/a-cidlli.adb, libgnat/a-cihama.adb,
libgnat/a-cihase.adb, libgnat/a-cimutr.adb,
libgnat/a-ciorma.adb, libgnat/a-ciormu.adb,
libgnat/a-ciorse.adb, libgnat/a-cohama.adb,
libgnat/a-cohase.adb, libgnat/a-comutr.adb,
libgnat/a-convec.adb, libgnat/a-coorma.adb,
libgnat/a-coormu.adb, libgnat/a-coorse.adb,
libgnat/a-crdlli.adb, libgnat/a-tigeau.adb,
libgnat/a-wtgeau.adb, libgnat/a-ztgeau.adb,
libgnat/g-calend.adb, libgnat/g-comlin.adb,
libgnat/g-expect.adb, libgnat/g-mbflra.adb,
libgnat/g-spipat.adb, libgnat/s-fatgen.adb,
libgnat/s-fileio.adb, libgnat/s-os_lib.adb,
libgnat/s-regpat.adb, libgnat/s-valued.adb,
libgnat/s-valuer.adb: Remove unnecessary Unreferenced pragmas
* sem_ch10.adb (Process_Spec_Clauses): Remove useless
assignments.
* sem_ch13.adb (Validate_Literal_Aspect): Default initialize I.
* sem_ch3.adb (Build_Derived_Concurrent_Type): Default
initialize Corr_Decl.
* sem_ch8.adb (Undefined): Replace calls to Is_LHS with calls to
Known_To_Be_Assigned.
(In_Abstract_View_Pragma): Likewise.
* sem_eval.adb (Eval_Selected_Component): Replace calls to
Is_LHS with calls to Known_To_Be_Assigned.
* sem_res.adb (Init_Component): Replace calls to May_Be_Lvalue
with calls to Known_To_Be_Assigned.
* sem_util.adb, sem_util.ads (End_Label_Loc): Default initialize
Owner.
(Explain_Limited_Type): Default initialize Expr_Func.
(Find_Actual): Modified to handle entry families.
(Is_LHS): Deleted.
(May_Be_Lvalue): Deleted.
(Known_To_Be_Assigned): Modified and improved to handle all
cases.
* sem_warn.adb (Traverse_Result): Replace calls to May_Be_Lvalue
with calls to Known_To_Be_Assigned.
(Check_Ref): Modify error on unreferenced out parameters to take
into account different warning flags.
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gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
Update -gnatwr documentation.
* gnat_ugn.texi: Regenerate.
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gcc/ada/
* libgnat/s-rident.ads (No_Tagged_Type_Registration): New
restriction identifier.
* restrict.ads (Implementation_Restriction): Add restriction.
* exp_ch7.adb (Process_Declarations): Suppress
tagged-type-related finalization actions if the restriction is
active. Call RTE_Available last.
* exp_disp.adb (Make_DT): Likewise.
* exp_util.adb (Requires_Cleanup_Actions): Return False for a
tagged type declaration if No_Tagged_Type_Registration is
active.
* sem_attr.adb (Check_Stream_Attribute): Check restriction
No_Tagged_Type_Registration.
* libgnat/a-except.ads (Null_Occurrence): Minor: Initialize, to
avoid stopping at a warning in gdb.
* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
Document new restriction.
* gnat_rm.texi: Regenerate.
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gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst (Compiler_Unit)
(Compiler_Unit_Warning): Remove.
* gnat-style.texi, gnat_rm.texi, gnat_ugn.texi: Regenerate.
* libgnat/g-dynhta.ads: Add comment indicating this unit is
built during stage1.
* libgnat/g-dyntab.ads: Likewise.
* libgnat/g-graphs.ads: Likewise.
* libgnat/g-lists.ads: Likewise.
* libgnat/g-sets.ads: Likewise.
* libgnat/gnat.ads: Likewise.
* libgnat/s-pehage.ads: Likewise.
* libgnat/s-resfil.ads: Likewise.
* libgnat/s-rident.ads: Likewise.
* libgnat/s-utf_32.ads: Likewise.
* errout.ads: Update comment.
* opt.ads (Opt): Remove Compiler_Unit.
* par-ch5.adb (All_Pragmas): Remove call to Check_Compiler_Unit.
* sem_prag.adb (Analyze_Pragma): Likewise.
* sem_ch4.adb (Non_Static_Choice_Error, Analyze_If_Expression)
(Analyze_Set_Membership, Record_Interp): Likewise.
* sem_ch11.adb (Analyze_Raise_Expression): Likewise.
* sem_ch6.adb: Remove Restric package reference.
(Analyze_Extended_Return_Statement): Remove call to
Check_Compiler_Unit.
* par-prag.adb (Process_Restrictions_Or_Restriction_Warnings):
Remove handling of Pragma_Compiler_Unit[_Warning}.
* restrict.adb (Check_Compiler_Unit): Remove both.
* restrict.ads: Likewise.
* snames.ads-tmpl (Pragma_Id): Remove
Pragma_Compiler_Unit[_Warning].
* libgnat/a-assert.ads: Remove pragma Compiler_Unit_Warning.
* libgnat/a-chlat1.ads: Likewise.
* libgnat/a-elchha.adb: Likewise.
* libgnat/a-elchha.ads: Likewise.
* libgnat/a-ioexce.ads: Likewise.
* libgnat/a-strhas.ads: Likewise.
* libgnat/g-byorma.adb: Likewise.
* libgnat/g-byorma.ads: Likewise.
* libgnat/g-dyntab.adb: Likewise.
* libgnat/g-heasor.ads: Likewise.
* libgnat/g-hesora.adb: Likewise.
* libgnat/g-hesora.ads: Likewise.
* libgnat/g-htable.adb: Likewise.
* libgnat/g-htable.ads: Likewise.
* libgnat/g-spchge.adb: Likewise.
* libgnat/g-spchge.ads: Likewise.
* libgnat/g-speche.adb: Likewise.
* libgnat/g-speche.ads: Likewise.
* libgnat/g-table.ads: Likewise.
* libgnat/g-u3spch.adb: Likewise.
* libgnat/g-u3spch.ads: Likewise.
* libgnat/interfac.ads: Likewise.
* libgnat/s-addope.adb: Likewise.
* libgnat/s-addope.ads: Likewise.
* libgnat/s-assert.adb: Likewise.
* libgnat/s-assert.ads: Likewise.
* libgnat/s-bitops.adb: Likewise.
* libgnat/s-bitops.ads: Likewise.
* libgnat/s-carun8.adb: Likewise.
* libgnat/s-carun8.ads: Likewise.
* libgnat/s-casuti.adb: Likewise.
* libgnat/s-casuti.ads: Likewise.
* libgnat/s-conca2.adb: Likewise.
* libgnat/s-conca2.ads: Likewise.
* libgnat/s-conca3.adb: Likewise.
* libgnat/s-conca3.ads: Likewise.
* libgnat/s-conca4.adb: Likewise.
* libgnat/s-conca4.ads: Likewise.
* libgnat/s-conca5.adb: Likewise.
* libgnat/s-conca5.ads: Likewise.
* libgnat/s-conca6.adb: Likewise.
* libgnat/s-conca6.ads: Likewise.
* libgnat/s-conca7.adb: Likewise.
* libgnat/s-conca7.ads: Likewise.
* libgnat/s-conca8.adb: Likewise.
* libgnat/s-conca8.ads: Likewise.
* libgnat/s-conca9.adb: Likewise.
* libgnat/s-conca9.ads: Likewise.
* libgnat/s-crc32.adb: Likewise.
* libgnat/s-crc32.ads: Likewise.
* libgnat/s-crtl.ads: Likewise.
* libgnat/s-excdeb.adb: Likewise.
* libgnat/s-excdeb.ads: Likewise.
* libgnat/s-except.ads: Likewise.
* libgnat/s-exctab.adb: Likewise.
* libgnat/s-exctab.ads: Likewise.
* libgnat/s-finmas.ads: Likewise.
* libgnat/s-htable.adb: Likewise.
* libgnat/s-htable.ads: Likewise.
* libgnat/s-mastop.adb: Likewise.
* libgnat/s-mastop.ads: Likewise.
* libgnat/s-memory.adb: Likewise.
* libgnat/s-memory.ads: Likewise.
* libgnat/s-os_lib.ads: Likewise.
* libgnat/s-parame.adb: Likewise.
* libgnat/s-parame.ads: Likewise.
* libgnat/s-parame__posix2008.ads: Likewise.
* libgnat/s-purexc.ads: Likewise.
* libgnat/s-resfil.adb: Likewise.
* libgnat/s-restri.adb: Likewise.
* libgnat/s-restri.ads: Likewise.
* libgnat/s-secsta.adb: Likewise.
* libgnat/s-secsta.ads: Likewise.
* libgnat/s-soflin.adb: Likewise.
* libgnat/s-soflin.ads: Likewise.
* libgnat/s-sopco3.adb: Likewise.
* libgnat/s-sopco3.ads: Likewise.
* libgnat/s-sopco4.adb: Likewise.
* libgnat/s-sopco4.ads: Likewise.
* libgnat/s-sopco5.adb: Likewise.
* libgnat/s-sopco5.ads: Likewise.
* libgnat/s-spsufi.ads: Likewise.
* libgnat/s-stache.adb: Likewise.
* libgnat/s-stache.ads: Likewise.
* libgnat/s-stalib.adb: Likewise.
* libgnat/s-stalib.ads: Likewise.
* libgnat/s-stoele.adb: Likewise.
* libgnat/s-stoele.ads: Likewise.
* libgnat/s-strcom.adb: Likewise.
* libgnat/s-strcom.ads: Likewise.
* libgnat/s-strhas.adb: Likewise.
* libgnat/s-string.adb: Likewise.
* libgnat/s-string.ads: Likewise.
* libgnat/s-strops.adb: Likewise.
* libgnat/s-strops.ads: Likewise.
* libgnat/s-ststop.adb: Likewise.
* libgnat/s-ststop.ads: Likewise.
* libgnat/s-traceb.adb: Likewise.
* libgnat/s-traceb.ads: Likewise.
* libgnat/s-traent.adb: Likewise.
* libgnat/s-traent.ads: Likewise.
* libgnat/s-utf_32.adb: Likewise.
* libgnat/s-unstyp.ads: Likewise.
* libgnat/s-wchcnv.adb: Likewise.
* libgnat/s-wchcnv.ads: Likewise.
* libgnat/s-wchcon.adb: Likewise.
* libgnat/s-wchcon.ads: Likewise.
* libgnat/s-wchjis.adb: Likewise.
* libgnat/s-wchjis.ads: Likewise.
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I replaced and verified http:// links for various domains.
gcc/ada/ChangeLog:
* doc/share/gnu_free_documentation_license.rst: Replace http:// with https.
* gnat-style.texi: Likewise.
* gnat_rm.texi: Likewise.
* gnat_ugn.texi: Likewise.
gcc/d/ChangeLog:
* gdc.texi: Replace http:// with https.
gcc/ChangeLog:
* doc/contrib.texi: Replace http:// with https.
* doc/contribute.texi: Likewise.
* doc/extend.texi: Likewise.
* doc/gccint.texi: Likewise.
* doc/gnu.texi: Likewise.
* doc/implement-c.texi: Likewise.
* doc/implement-cxx.texi: Likewise.
* doc/include/fdl.texi: Likewise.
* doc/include/gpl_v3.texi: Likewise.
* doc/install.texi: Likewise.
* doc/invoke.texi: Likewise.
* doc/passes.texi: Likewise.
* doc/service.texi: Likewise.
* doc/sourcebuild.texi: Likewise.
* doc/standards.texi: Likewise.
gcc/fortran/ChangeLog:
* gfortran.texi: Replace http:// with https.
* intrinsic.texi: Likewise.
gcc/go/ChangeLog:
* gccgo.texi: Replace http:// with https.
gcc/jit/ChangeLog:
* docs/_build/texinfo/libgccjit.texi: Replace http:// with https.
* docs/cp/index.rst: Likewise.
* docs/cp/intro/index.rst: Likewise.
* docs/cp/intro/tutorial01.rst: Likewise.
* docs/cp/intro/tutorial02.rst: Likewise.
* docs/cp/intro/tutorial03.rst: Likewise.
* docs/cp/intro/tutorial04.rst: Likewise.
* docs/cp/topics/asm.rst: Likewise.
* docs/cp/topics/compilation.rst: Likewise.
* docs/cp/topics/contexts.rst: Likewise.
* docs/cp/topics/expressions.rst: Likewise.
* docs/cp/topics/functions.rst: Likewise.
* docs/cp/topics/index.rst: Likewise.
* docs/cp/topics/locations.rst: Likewise.
* docs/cp/topics/objects.rst: Likewise.
* docs/cp/topics/types.rst: Likewise.
* docs/index.rst: Likewise.
* docs/internals/index.rst: Likewise.
* docs/intro/index.rst: Likewise.
* docs/intro/tutorial01.rst: Likewise.
* docs/intro/tutorial02.rst: Likewise.
* docs/intro/tutorial03.rst: Likewise.
* docs/intro/tutorial04.rst: Likewise.
* docs/intro/tutorial05.rst: Likewise.
* docs/topics/asm.rst: Likewise.
* docs/topics/compatibility.rst: Likewise.
* docs/topics/compilation.rst: Likewise.
* docs/topics/contexts.rst: Likewise.
* docs/topics/expressions.rst: Likewise.
* docs/topics/function-pointers.rst: Likewise.
* docs/topics/functions.rst: Likewise.
* docs/topics/index.rst: Likewise.
* docs/topics/locations.rst: Likewise.
* docs/topics/objects.rst: Likewise.
* docs/topics/performance.rst: Likewise.
* docs/topics/types.rst: Likewise.
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gcc/ada/
* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst
(No_Dispatching_Calls): Fix whitespace in example code.
* gnat_rm.texi: Regenerate.
* exp_ch13.adb (Expand_N_Freeze_Entity): Replace low-level
membership test with a high-level wrapper.
* exp_ch3.adb (Expand_Freeze_Record_Type): Remove unnecessary
initialization of list of wrapper declarations and unnecessary
guard for list of their bodies (if no bodies are created then
Append_Freeze_Actions is a no-op).
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function
gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst: Add
documentation of the new form of formal subprogram default in
the section on language extensions (pragma Extensions_Allowed).
* gnat_rm.texi: Regenerate.
* gen_il-gen-gen_nodes.adb: Add Expression as a syntactic field
of N_Formal_(Abstract|Concrete)_Subprogram_Declaration nodes.
* par-ch12.adb (P_Formal_Subprogram_Declaration): Add parsing
support for the new default of a parenthesized expression for
formal functions. Issue an error when extensions are not
allowed, suggesting use of -gnatX. Update comment with extended
syntax for SUBPROGRAM_DEFAULT.
* sem_ch12.adb (Analyze_Formal_Subprogram_Declaration): Issue an
error when an expression default is given for an abstract formal
function. When a default expression is present for a formal
function, install the function's formals and preanalyze the
expression.
(Instantiate_Formal_Subprogram): Fix typo in RM paragraph in a
comment. When a formal function has a default expression,
create a body for the function that will evaluate the expression
and will be called when the default applies in an instantiation.
The implicit function is marked as inlined and as having
convention Intrinsic.
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gcc/ada/
* doc/gnat_rm/the_gnat_library.rst (System.Atomic_Counters):
Sync description with comment in s-atocou.ads.
* gnat-style.texi, gnat_rm.texi, gnat_ugn.texi: Regenerate.
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gcc/ada/
* strub.adb, strub.ads: New files.
* exp_attr.adb (Access_Cases): Copy strub mode to subprogram type.
* exp_disp.adb (Expand_Dispatching_Call): Likewise.
* freeze.adb (Check_Inherited_Conditions): Check that strub modes
match overridden subprograms and interfaces.
(Freeze_All): Renaming declarations too.
* sem_attr.adb (Resolve_Attribute): Reject 'Access to
strub-annotated data object.
* sem_ch3.adb (Derive_Subprogram): Copy strub mode to
inherited subprogram.
* sem_prag.adb (Analyze_Pragma): Propagate Strub Machine_Attribute
from access-to-subprogram to subprogram type when required,
but not from access-to-data to data type. Mark the entity that
got the pragma as having a gigi rep item.
* sem_res.adb (Resolve): Reject implicit conversions that
would change strub modes.
(Resolve_Type_Conversions): Reject checked conversions
between incompatible strub modes.
* doc/gnat_rm/security_hardening_features.rst: Update.
* gnat_rm.texi: Regenerate.
* libgnat/a-except.ads (Raise_Exception): Revert strub-callable
annotation in public subprogram.
* libgnat/s-arit128.ads (Multiply_With_Ovflo_Check128): Likewise.
* libgnat/s-arit64.ads (Multiply_With_Ovflo_Check64): Likewise.
* libgnat/s-secsta.ads (SS_Allocate): Likewise.
(SS_Mark, SS_Release): Likewise.
* gcc-interface/Make-lang.in (GNAT_ADA_OBJS): Add ada/strub.o.
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|
gcc/ada/
* doc/gnat_ugn/platform_specific_information.rst: Document the
SuSE kernel bug.
* gnat_ugn.texi: Regenerate.
|
|
Improve the wording on optimizations that prevent compare hardening,
so as to also cover cases in which explicit compares get combined into
operations with implied compares.
for gcc/ada/ChangeLog
* doc/gnat_rm/security_hardening_features.rst: Mention
optimization to operations with implied compares.
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|
This patch introduces optional passes to harden conditionals used in
branches, and in computing boolean expressions, by adding redundant
tests of the reversed conditions, and trapping in case of unexpected
results. Though in abstract machines the redundant tests should never
fail, CPUs may be led to misbehave under certain kinds of attacks,
such as of power deprivation, and these tests reduce the likelihood of
going too far down an unexpected execution path.
for gcc/ChangeLog
* common.opt (fharden-compares): New.
(fharden-conditional-branches): New.
* doc/invoke.texi: Document new options.
* gimple-harden-conditionals.cc: New.
* Makefile.in (OBJS): Build it.
* passes.def: Add new passes.
* tree-pass.h (make_pass_harden_compares): Declare.
(make_pass_harden_conditional_branches): Declare.
for gcc/ada/ChangeLog
* doc/gnat_rm/security_hardening_features.rst
(Hardened Conditionals): New.
for gcc/testsuite/ChangeLog
* c-c++-common/torture/harden-comp.c: New.
* c-c++-common/torture/harden-cond.c: New.
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|
gcc/ada/
* sem_case.adb (Composite_Case_Ops.Box_Value_Required): A new
function which takes a component type and returns a Boolean.
Returns True for the cases which were formerly forbidden as
components (these checks were formerly performed in the
now-deleted procedure
Check_Composite_Case_Selector.Check_Component_Subtype).
(Composite_Case_Ops.Normalized_Case_Expr_Type): Hoist this
function out of the Array_Case_Ops package because it has been
generalized to also do the analogous thing in the case of a
discriminated type.
(Composite_Case_Ops.Scalar_Part_Count): Return 0 if
Box_Value_Required returns True for the given type/subtype.
(Composite_Case_Ops.Choice_Analysis.Choice_Analysis.Component_Bounds_Info.
Traverse_Discrete_Parts): Return without doing anything if
Box_Value_Required returns True for the given type/subtype.
(Composite_Case_Ops.Choice_Analysis.Parse_Choice.Traverse_Choice):
If Box_Value_Required yields True for a given component type,
then check that the value of that component in a choice
expression is indeed a box (in which case the component is
ignored).
* doc/gnat_rm/implementation_defined_pragmas.rst: Update
documentation.
* gnat_rm.texi: Regenerate.
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|
and bodies
gcc/ada/
* sem_ch6.adb: Add with and use of Warnsw.
(Check_Conformance): Report a warning when subtypes or
designated subtypes of formal parameters or result subtypes
denote different declarations between the spec and body of the
(Subprogram_Subtypes_Have_Same_Declaration): New function nested
within Check_Conformance that determines whether two subtype
entities referenced in a subprogram come from the same
declaration. Returns True immediately if the subprogram is in a
generic instantiation, or the subprogram is marked Is_Internal
or is declared in an internal (GNAT library) unit, or GNAT_Mode
is enabled, otherwise compares the nonlimited views of the
entities (or their designated subtypes' nonlimited views in the
anonymous access cases).
(Nonlimited_View_Of_Subtype): New function nested within
function Subprogram_Subtypes_Have_Same_Declaration that returns
Non_Limited_View of a type or subtype that is an incomplete or
class-wide type that comes from a limited of a
package (From_Limited_With is True for the entity), or returns
Full_View when the nonlimited view is an incomplete type.
Otherwise returns the entity passed in.
* warnsw.ads (Warn_On_Pedantic_Checks): New warning flag.
(type Warning_Record): New component Warn_On_Pedantic_Checks.
* warnsw.adb (All_Warnings): Set Warn_On_Pedantic_Checks from
parameter Setting.
(Restore_Warnings): Restore the value of the
Warn_On_Pedantic_Checks flag.
(Save_Warnings): Save the value of the Warn_On_Pedantic_Checks
flag.
(Set_Underscore_Warning_Switch): Add settings of the
Warn_On_Pedantic flag according to the switch ("-gnatw_p" vs.
"-gnatw_P").
* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Add
documentation of new switches -gnatw_p and -gnatw_P (warnings
for pedantic checks).
* gnat_ugn.texi: Regenerate.
* usage.adb: Add Warn_On_Pedantic_Checks.
|
|
gcc/ada/
* doc/gnat_rm.rst: Add...
* doc/gnat_rm/security_hardening_features.rst: New.
* doc/gnat_rm/about_this_guide.rst: Link to new chapter.
* gnat_rm.texi: Regenerate.
* gcc-interface/utils.c (handle_strub_attribute): New.
(gnat_internal_attribute_table): Add strub.
* libgnat/a-except.adb: Make Rcheck_CE_* strub-callable.
* libgnat/a-except.ads (Raise_Exception): Likewise.
(Raise_Exception_Always): Likewise.
* libgnat/s-arit128.ads (Multiply_With_Ovflo_Check128):
Likewise.
* libgnat/s-arit64.ads (Multiply_With_Ovflo_Check64):
Likewise.
* libgnat/s-secsta.ads (SS_Allocate, SS_Mark, SS_Release):
Likewise.
|
|
gcc/ada/
* sem_prag.adb (Analyze_Pragma): Forbid use of
Compile_Time_(Error|Warning) as configuration pragma.
* doc/gnat_ugn/the_gnat_compilation_model.rst:
Compile_Time_(Error|Warning) and Compiler_Unit(_Warning) are not
configuration pragmas and shall not be listed as such. The
following pragmas are either obsolete or undocumented:
No_Run_Time, Propagate_Exceptions, Rational, Ravenscar,
Restricted_Run_Time, Short_Descriptors, Universal_Data. Fix
some typos (notably on Restriction_Warnings).
* doc/gnat_rm/implementation_defined_pragmas.rst: Move
Rename_Pragma documentation to alphabetical order.
* gnat_rm.texi, gnat_ugn.texi: Regenerate.
|
|
gcc/ada/
* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
Add new entry for No_Dynamic_Accessibility_Checks documenting
behavior.
* gnat_rm.texi: Regenerate.
* exp_ch4.adb (Expand_N_In): Perform special expansion for
membership tests when No_Dynamic_Accessibility_Checks is active.
* sem_attr.adb (Resolve_Attribute): Skip static accessibility
check on actuals for anonymous access type formal parameters,
and add constants for readability.
* sem_util.adb (Function_Call_Or_Allocator_Level): Use the
innermost master for determining the level for function calls
within the alternative accessibility model.
(Type_Access_Level): Properly get the level for anonymous access
function result types.
|
|
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst
(gnateA): This switch no longer looks at the formal parameter
type being composite (as originally mandated by SPARK), but in
the parameter passing mechanism being not specified (as
currently mandated by Ada).
* gnat_ugn.texi: Regenerate.
|
|
gcc/ada/
* doc/gnat_ugn/the_gnat_compilation_model.rst (Binding generation):
Document specific behavior for /include/-ending paths and update.
* gnat_ugn.texi: Regenerate.
|
|
gcc/ada/
* doc/gnat_rm/implementation_defined_characteristics.rst: Document
the rounding mode assumed for dynamic computations as per 3.5.7(16).
* gnat_rm.texi: Regenerate.
|
|
gcc/ada/
* doc/gnat_ugn/gnat_and_program_execution.rst (gnatmem): Document
that it works only with fixed-position executables.
|
|
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst (gnatsymbolize):
Document new --load option and -g1 as minimal compilation
requirement.
|
|
gcc/ada/
* doc/gnat_rm/implementation_defined_characteristics.rst: Update
this section to reflect the current version of Ada RM M.2.
* gnat_rm.texi: Regenerate.
|
|
gcc/ada/
* doc/gnat_ugn/platform_specific_information.rst: Improve doc
on permission and containers.
* gnat_ugn.texi: Regenerate.
|
|
gcc/ada/
* exp_ch5.adb (Expand_General_Case_Statement.Pattern_Match): Add
new function Indexed_Element to handle array element
comparisons. Handle case choices that are array aggregates,
string literals, or names denoting constants.
* sem_case.adb (Composite_Case_Ops.Array_Case_Ops): New package
providing utilities needed for casing on arrays.
(Composite_Case_Ops.Choice_Analysis): If necessary, include
array length as a "component" (like a discriminant) when
traversing components. We do not (yet) partition choice analysis
to deal with unequal length choices separately. Instead, we
embed everything in the minimum-dimensionality Cartesian product
space needed to handle all choices properly; this is determined
by the length of the longest choice pattern.
(Composite_Case_Ops.Choice_Analysis.Traverse_Discrete_Parts):
Include length as a "component" in the traversal if necessary.
(Composite_Case_Ops.Choice_Analysis.Parse_Choice.Traverse_Choice):
Add support for case choices that are string literals or names
denoting constants.
(Composite_Case_Ops.Choice_Analysis): Include length as a
"component" in the analysis if necessary.
(Check_Choices.Check_Case_Pattern_Choices.Ops.Value_Sets.Value_Index_Count):
Improve error message when capacity exceeded.
* doc/gnat_rm/implementation_defined_pragmas.rst: Update
documentation to reflect current implementation status.
* gnat_rm.texi: Regenerate.
|
|
For consistency's sake with -Wall & -w, this makes -Werror imply -gnatwe.
gcc/ada/
PR ada/101385
* doc/gnat_ugn/building_executable_programs_with_gnat.rst
(-Wall): Minor fixes.
(-w): Likewise.
(-Werror): Document that it also sets -gnatwe by default.
* gcc-interface/lang-specs.h (ada): Expand -gnatwe if -Werror is
passed and move expansion of -gnatw switches to before -gnatez.
|
|
gcc/ada/
* exp_ch5.adb (Expand_General_Case_Statement): Add new function
Else_Statements to handle the case of invalid data analogously
to how it is handled when casing on a discrete value.
* sem_case.adb (Has_Static_Discriminant_Constraint): A new
Boolean-valued function.
(Composite_Case_Ops.Scalar_Part_Count): Include discriminants
when traversing components.
(Composite_Case_Ops.Choice_Analysis.Traverse_Discrete_Parts):
Include discriminants when traversing components; the component
range for a constrained discriminant is a single value.
(Composite_Case_Ops.Choice_Analysis.Parse_Choice): Eliminate
Done variable and modify how Next_Part is computed so that it is
always correct (as opposed to being incorrect when Done is
True). This includes changes in Update_Result (a local
procedure). Add new local procedure
Update_Result_For_Box_Component and call it not just for box
components but also for "missing" components (components
associated with an inactive variant).
(Check_Choices.Check_Composite_Case_Selector.Check_Component_Subtype):
Instead of disallowing all discriminated component types, allow
those that are unconstrained or statically constrained. Check
discriminant subtypes along with other component subtypes.
* doc/gnat_rm/implementation_defined_pragmas.rst: Update
documentation to reflect current implementation status.
* gnat_rm.texi: Regenerate.
|
