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The attribute is only defined by the language for decimal fixed point
types (RM 3.5.10(12)) but it could be useful to have it for ordinary
fixed point types too because conversions from floating point truncate
in both cases.
gcc/ada/
* sem_attr.adb (Analyze_Attribute) <Attribute_Round>: Also accept it
for ordinary fixed point types.
* doc/gnat_rm/implementation_defined_attributes.rst (Round): New.
* gnat_rm.texi: Regenerate.
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Add minimal description for pragma and aspect Exceptional_Cases, based
on a similarly minimal descriptions for other SPARK contracts.
gcc/ada/
* doc/gnat_rm/implementation_defined_aspects.rst
(Exceptional_Cases): Add description for aspect.
* doc/gnat_rm/implementation_defined_pragmas.rst
(Exceptional_Cases): Add description for pragma.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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Add description of a recently added SPARK contract.
gcc/ada/
* doc/gnat_rm/implementation_defined_aspects.rst,
doc/gnat_rm/implementation_defined_pragmas.rst: Add sections for
Always_Terminates.
* gnat-style.texi: Regenerate.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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When pragma Ignore_Pragma(SPARK_Mode) is used, do not issue error
messages related to SPARK legality checking. This facilitates the
instrumentation of code by GNATcoverage.
gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst: Fix doc for
pragma Ignore_Pragma, in the case where it follows another
configuration pragma that it names, which causes the preceding
pragma to be ignored after parsing.
* errout.adb (Should_Ignore_Pragma_SPARK_Mode): New query.
(SPARK_Msg_N): Do nothing if SPARK_Mode is ignored.
(SPARK_Msg_NE): Same.
* gnat-style.texi: Regenerate.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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gcc/ada/
* doc/gnat_rm/the_implementation_of_standard_i_o.rst: Fix a couple
occurrences of incorrect quoting.
* gnat_rm.texi: Regenerate.
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The index directive must be located before the indexed element, at least
for the generated texinfo to be correct. See:
https://www.sphinx-doc.org/en/master/usage/restructuredtext/directives.html#directive-index
This was reported along with changes done in https://inbox.sourceware.org/gcc-patches/20230223102714.3606058-3-arsen@aarsen.me/
gcc/ada/
* doc/gnat_ugn/the_gnat_compilation_model.rst: Move index
directives.
* gnat_ugn.texi: Regenerate.
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Update the logo and the background color in the top right corner of the
GNAT User’s Guide for Native Platforms
gcc/ada/
* doc/share/conf.py: Changed the background color and the logo.
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-gnatwc has been correctly emitting warnings for expressions outside
of tests for a while, but its documentation in the user's guide had
never been updated to reflect that. Also, the documentation used
"conditional expressions" to designate boolean expressions, but
"conditional expressions" has been defined by Ada 2012 to designate
if expressions and case expressions. This patch fixes those issues.
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Fix
-gnatwc documentation.
* gnat_ugn.texi: Regenerate.
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A GNAT-defined aspect, Local_Restrictions, is defined.
This provides a way of enforcing a given restriction for an individual
subprogram (and its call-closure) without requiring that the entire
program satisfy the restriction.
A GNAT-defined aspect, User_Aspect, is defined.
This (along with the new User_Aspect_Definition configuration pragma) provides
a way of naming a set of aspect specifications which can then be applied
to multiple declarations without textual repetition of the set.
gcc/ada/
* local_restrict.ads: A new package. Declares Local_Restriction
enumeration type and provides operations to check for local
restriction violations.
* local_restrict.adb: Corresponding package body. Replace "not
Present (X)" calls with "No (X)" calls.
* aspects.ads: Add a new enumeration elements,
Aspect_Local_Restrictions and Aspect_User_Aspect, to the Aspect_Id
enumeration type. Update Aspect_Id-indexed aggregates. Add nested
package User_Aspect_Support to manage two pieces of state. One is
a map from identifiers to User_Aspect_Definition pragmas (updated
when such a pragma is encountered). The other is an
access-to-subprogram variable that is introduced in order to keep
the bulk of semantics out of the closure of package Aspects while
allowing a call from aspects.adb to the sem_ch13 procedure that
analyzes a User_Aspect aspect specification.
* aspects.adb (Find_Aspect): Cope with a case of a block statement
with an empty parent. It is not clear whether this is papering
over a compiler bug. Add indirect call through the aforementioned
access-to-subprogram variable when Find_Aspect enounters an
unanalyzed User_Aspect aspect specification. If Find_Aspect is
called looking for aspect Foo, then a User_Aspect specification
might generate (during analysis) a Foo aspect specification. So
the Find_Aspect call needs to trigger that analysis if it has not
already taken place. Provide a body for package
User_Aspect_Support. Replace "not Present (X)" call with "No (X)"
call.
* freeze.adb (Freeze_Subprogram): Check local restriction
compatibility when a dispatching operation is overridden.
* par-prag.adb: Add support for parsing a User_Aspect_Definition
pragma.
* restrict.ads: We'd like to have the body of package Restrict
include a call to a procedure declared in package Local_Restrict.
Doing that in the obvious way pulls most of semantics into the
closure of package Restrict, and that turns out to cause problems.
So we introduce a level of indirection and instead call through an
access-to-subprogram value. In this unit, we declare the
access-to-subprogram type and object.
* restrict.adb (Check Restriction): When a construct is
encountered that could violate a global restriction (depending on
whether the given restriction is in effect), Check_Restriction is
called. At this point, we also check for a violation of any
corresponding local restriction that is in effect. For reasons
described above, this check is performed via an indirect call.
* sem_ch13.ads (Parse_Aspect_Local_Restrictions): A new function,
similar to the existing Parse_Aspect_Xxx subprograms.
* sem_ch13.adb: Perform semantic analysis of Local_Restrictions
and User_Aspect aspect specifications. Declare and call new
Validate_Aspect_Local_Restrictions and
Analyze_User_Aspect_Aspect_Specification procedures (a reference
to the latter is registered during package elaboration). In
Analyze_Aspect_Specifications, do not set the Analyzed flag of a
User_Aspect aspect specification. Replace "not Present (X)" call
with "No (X)" call. Replace 'Image with 'Img in a case where the
prefix of the attribute reference is an object; this is done to
accomodate older compilers.
* sem_ch6.adb (Check_Subtype_Conformant): Include in subtype
conformance check a check for overriding-related compatibility of
local restrictions.
* sem_ch8.adb (Analyze_Subprogram_Renaming): In the case of an
instance of a generic that takes a formal subprogram, check that
formal and actual are compatible with respect to local
restrictions.
* sem_prag.adb: Add support for User_Aspect_Definition pragma.
* sem_res.adb (Resolve_Call): Check caller/callee compatibility
with respect to local restrictions.
* snames.ads-tmpl: Add Name_Local_Restrictions, Name_User_Aspect,
and Name_User_Aspect_Definition constants.
* doc/gnat_rm/implementation_defined_aspects.rst: Document new
aspects.
* doc/gnat_rm/implementation_defined_pragmas.rst: Document new
pragma.
* doc/gnat_ugn/the_gnat_compilation_model.rst: Add
User_Aspect_Definition to list of GNAT pragmas.
* gcc-interface/Make-lang.in: Add local_restrict.o.
* gnat-style.texi: Regenerate.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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SPARK RM 6.1.11 introduces a new aspect Side_Effects to denote
those functions which may have output parameters, write global
variables, raise exceptions and not terminate. This adds support
for this aspect and the corresponding pragma in the frontend.
Handling of this aspect in the frontend is very similar to
the handling of aspect Extensions_Visible: both are Boolean
aspects whose expression should be static, they can be specified
on the same entities, with the same rule of inheritance from
overridden to overriding primitives for tagged types.
There is no impact on code generation.
gcc/ada/
* aspects.ads: Add aspect Side_Effects.
* contracts.adb (Add_Pre_Post_Condition)
(Inherit_Subprogram_Contract): Add support for new contract.
* contracts.ads: Update comments.
* einfo-utils.adb (Get_Pragma): Add support.
* einfo-utils.ads (Prag): Update comment.
* errout.ads: Add explain codes.
* par-prag.adb (Prag): Add support.
* sem_ch13.adb (Analyze_Aspect_Specifications)
(Check_Aspect_At_Freeze_Point): Add support.
* sem_ch6.adb (Analyze_Subprogram_Body_Helper)
(Analyze_Subprogram_Declaration): Call new analysis procedure to
check SPARK legality rules.
(Analyze_SPARK_Subprogram_Specification): New procedure to check
SPARK legality rules. Use an explain code for the error.
(Analyze_Subprogram_Specification): Move checks to new subprogram.
This code was effectively dead, as the kind for parameters was set
to E_Void at this point to detect early references.
* sem_ch6.ads (Analyze_Subprogram_Specification): Add new
procedure.
* sem_prag.adb (Analyze_Depends_In_Decl_Part)
(Analyze_Global_In_Decl_Part): Adapt legality check to apply only
to functions without side-effects.
(Analyze_If_Present): Extract functionality in new procedure
Analyze_If_Present_Internal.
(Analyze_If_Present_Internal): New procedure to analyze given
pragma kind.
(Analyze_Pragmas_If_Present): New procedure to analyze given
pragma kind associated with a declaration.
(Analyze_Pragma): Adapt support for Always_Terminates and
Exceptional_Cases. Add support for Side_Effects. Make sure to call
Analyze_If_Present to ensure pragma Side_Effects is analyzed prior
to analyzing pragmas Global and Depends. Use explain codes for the
errors.
* sem_prag.ads (Analyze_Pragmas_If_Present): Add new procedure.
* sem_util.adb (Is_Function_With_Side_Effects): New query function
to determine if a function is a function with side-effects.
* sem_util.ads (Is_Function_With_Side_Effects): Same.
* snames.ads-tmpl: Declare new names for pragma and aspect.
* doc/gnat_rm/implementation_defined_aspects.rst: Document new aspect.
* doc/gnat_rm/implementation_defined_pragmas.rst: Document new pragma.
* gnat_rm.texi: Regenerate.
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Add documentation for the -Q gnatbind switch in GNAT User's Guide and
improve gnatbind's help output for the switch to emphasize that it adds the
requested number of stacks to the secondary stack pool generated by the
binder.
gcc/ada/
* bindusg.adb (Display): Make it clear -Q adds to the number of
secondary stacks generated by the binder.
* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
Document the -Q gnatbind switch and fix references to old
runtimes.
* gnat-style.texi: Regenerate.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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gcc/ada/
* doc/gnat_ugn/gnat_and_program_execution.rst: Add more details on
using Generic Elementary Functions with dimensional analysis.
* gnat_ugn.texi: Regenerate.
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gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Remove
extended discussion regarding mold run-time dependencies;
packaging changes in GNAT Pro have made them obsolete.
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The index for this paragraph was wrong.
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Fix
index.
* gnat_ugn.texi: Regenerate.
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Mark exception-raising subprograms with expected_throw attribute.
Document the use of the attribute in Control Flow Redundancy.
Enable marking subprograms as expected_throw with Machine_Attribute
pragmas.
gcc/ada/
* libgnat/a-except.ads (Raise_Exception): Mark expected_throw.
(Reraise_Occurrence): Likewise.
(Raise_Exception_Always): Likewise.
(Raise_From_Controlled_Operation): Likewise.
(Reraise_Occurrence_Always): Likewise.
(Reraise_Occurrence_No_Defer): Likewise.
* libgnat/a-except.adb
(Exception_Propagation.Propagate_Exception): Likewise.
(Complete_And_Propagate_Occurrence): Likewise.
(Raise_Exception_No_Defer): Likewise.
(Raise_From_Signal_Handler): Likewise.
(Raise_With_Msg): Likewise.
(Raise_With_Location_And_Msg): Likewise.
(Raise_Constraint_Error): Likewise.
(Raise_Constraint_Error_Msg): Likewise.
(Raise_Program_Error): Likewise.
(Raise_Program_Error_Msg): Likewise.
(Raise_Storage_Error): Likewise.
(Raise_Storage_Error_Msg): Likewise.
(Reraise, Rcheck_*): Likewise.
* doc/gnat_rm/security_hardening_features.rst (Control Flow
Hardening): Note the influence of expected_throw.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
* gcc-interface/utils.cc (handle_expected_throw_attribute): New.
(gnat_internal_attribute_table): Add expected_throw.
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This patch documents the new feature that allows declarations mixed with
statements, primarily by referring to the RFC.
gcc/ada/
* doc/gnat_rm/gnat_language_extensions.rst
(Local Declarations Without Block): Document the feature very
briefly, and refer the reader to the RFC for details and examples.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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Document -fhardcfr-skip-leaf.
gcc/ada/
* doc/gnat_rm/security_hardening_features.rst (Control Flow
Hardening): Document -fhardcfr-skip-leaf.
* gnat_rm.texi: Regenerate.
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Adjust documentation to reflect the introduction of
-fhardcfr-check-noreturn-calls=no-xthrow.
gcc/ada/
* doc/gnat_rm/security_hardening_features.rst (Control Flow
Redundancy): Add -fhardcfr-check-noreturn-calls=no-xthrow.
* gnat_rm.texi: Regenerate.
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Document leafy mode.
gcc/ada/
* doc/gnat_rm/security_hardening_features.rst (Register
Scrubbing): Document leafy mode.
* gnat_rm.texi: Regenerate.
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The limitation of resetting the FPU mode for non 80-bit
precision was not referenced from "Creating a Stand-alone
Library to be used in a non-Ada context". Reference it the same
way it is already referenced from "Interfacing to C".
gcc/ada/
* doc/gnat_ugn/the_gnat_compilation_model.rst: Reference "Binding
with Non-Ada Main Programs" from "Creating a Stand-alone Library
to be used in a non-Ada context".
* gnat_ugn.texi: Regenerate.
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gcc/ada/
* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
add No_Use_Of_Attribute & No_Use_Of_Pragma restrictions.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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There is still a mention of the defunct CHECKED mode and the Default
Settings paragraph is confusing with regard to the -gnato switch.
gcc/ada/
* doc/gnat_ugn/gnat_and_program_execution.rst (Overflows in GNAT)
<Default Settings>: Remove obsolete paragraph about -gnato.
<Implementation Notes>: Replace CHECKED with STRICT.
* gnat_ugn.texi: Regenerate.
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Indicate the signal handlers that are set by the Ada
run time, and explain how to prevent them if needed.
gcc/ada/
* doc/gnat_ugn/the_gnat_compilation_model.rst
(Partition-Wide Settings): add this subsection to document
configuration settings made by the Ada run time.
* gnat_ugn.texi: Regenerate.
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This can be helpful for legacy code that still makes use of an original
reverse Bit_Order clause, i.e. without a Scalar_Storage_Order clause.
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst (Compiler
Switches): Document -gnateH.
* opt.ads (Reverse_Bit_Order_Threshold): New variable.
* sem_ch13.adb (Adjust_Record_For_Reverse_Bit_Order): Use its value
if it is nonnegative instead of System_Max_Integer_Size.
* switch-c.adb (Scan_Front_End_Switches): Deal with -gnateH.
* usage.adb (Usage): Print -gnateH.
* gnat_ugn.texi: Regenerate.
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gcc/ada/
* doc/gnat_ugn/about_this_guide.rst: Fix typo. Uniformize punctuation.
* doc/gnat_ugn/the_gnat_compilation_model.rst: Uniformize punctuation.
Fix capitalization. Fix indentation of code block. Fix RST formatting
syntax errors.
* gnat_ugn.texi: Regenerate.
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New aspect Ghost_Predicate allows the use of ghost entities in the
predicate expression, even if the type is not ghost itself. As a result,
subtypes with a ghost predicate cannot be used in membership tests.
Subtypes with ghost predicates are subject to the same additional
restrictions as subtypes with aspect Dynamic_Predicate.
They are governed for compilation by assertion policy Ghost.
Checking of the predicate itself is governed by the usual assertion
policy (Static_Predicate/Dynamic_Predicate/Predicate) independently
of the ghost predicate.
gcc/ada/
* doc/gnat_rm/implementation_defined_aspects.rst: Document new
aspect.
* doc/gnat_rm/implementation_defined_pragmas.rst: Whitespace.
* aspects.adb (Init_Canonical_Aspect): Set it to Predicate.
* aspects.ads: Set global constants for new aspect.
* einfo.ads: Describe new flag related to new aspect.
* exp_ch6.adb (Can_Fold_Predicate_Call): Do not fold new aspect.
* exp_util.adb (Make_Predicate_Check): Add comment.
* gen_il-fields.ads: Add new flag.
* gen_il-gen-gen_entities.adb: Add new flag.
* ghost.adb (Is_OK_Ghost_Context): Ghost predicate is an OK
ghost context.
(Mark_Ghost_Pragma): Add overloading with ghost mode parameter.
* ghost.ads (Mark_Ghost_Pragma): Add overloading with ghpst mode
parameter.
(Name_To_Ghost_Mode): Make function public.
* sem_aggr.adb: Issue error for violation of valid use.
* sem_case.adb: Issue error for violation of valid use.
* sem_ch13.adb: Adapt for new aspect.
* sem_ch3.adb (Analyze_Full_Type_Declaration): Remove dead code
which was trying to propagate Has_Predicates flag in the wrong
direction (from derived to parent type).
(Analyze_Number_Declaration): Issue error for violation of valid
use.
(Build_Derived_Type): Cleanup inheritance of predicate flags from
parent to derived type.
(Build_Predicate_Function): Only add a predicate check when it
is not ignored as Ghost code.
* sem_ch4.adb (Analyze_Membership_Op): Issue an error for use of
a subtype with a ghost predicate as name in a membership test.
* sem_ch5.adb (Check_Predicate_Use): Issue error for violation of
valid use.
* sem_eval.adb: Adapt code for Dynamic_Predicate to account for
Ghost_Predicate too.
* sem_prag.adb (Analyze_Pragma): Make pragma ghost or not.
* sem_util.adb (Bad_Predicated_Subtype_Use): Adapt to new aspect.
(Inherit_Predicate_Flags): Add inheritance of flag. Add parameter
to apply to derived types.
* sem_util.ads (Inherit_Predicate_Flags): Change signature.
* snames.ads-tmpl: Add new aspect name.
* gnat_rm.texi: Regenerate.
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gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Fix minor issues.
* doc/gnat_ugn/the_gnat_compilation_model.rst: Fix minor issues.
* gnat_ugn.texi: Regenerate.
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Whitespace cleanup.
gcc/ada/
* doc/gnat_ugn/gnat_and_program_execution.rst
(Some Useful Memory Pools): Remove extra whitespace from examples.
* sem_aggr.adb (Make_String_Into_Aggregate): Remove extra whitespace.
* gnat_ugn.texi: Regenerate.
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Pattern Matching extension does not apply yet to case expressions.
This is worth stating clearly, as this is a natural use of pattern
matching to program in more functional style.
gcc/ada/
* doc/gnat_rm/gnat_language_extensions.rst: Be more explicit on
pattern matching limitation.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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Improve -gnatyx to check additional complete conditions,
and introduce a new switch -gnatyz to check for unnecessary
parentheses according to operator precedence rules.
Enable -gnatyz as part of -gnatyg.
gcc/ada/
* par-ch5.adb, style.ads, styleg.adb, styleg.ads
(Check_Xtra_Parens): Remove extra parameter Enable.
(Check_Xtra_Parens_Precedence): New.
(P_Case_Statement): Add -gnatyx style check.
* sem_ch4.adb: Replace calls to Check_Xtra_Parens by
Check_Xtra_Parens_Precedence.
* stylesw.ads, stylesw.adb, usage.adb: Add support for
-gnatyz.
* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
Update -gnatyxzg doc.
* sem_prag.adb, libgnat/s-regpat.adb,
libgnarl/s-interr__hwint.adb, libgnarl/s-interr__vxworks.adb:
Remove extra parens.
* par-ch3.adb (P_Discrete_Range): Do not emit a style check if
the expression is not a simple expression.
* gnat_ugn.texi: Regenerate.
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gcc/ada/
* doc/gnat_rm.rst, doc/gnat_rm/gnat_language_extensions.rst,
doc/gnat_rm/implementation_defined_pragmas.rst:
* gnat_rm.texi: Regenerate.
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I found a couple of spots using the typo "patterm" rather than the
correct "pattern".
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst
(Switches_for_gnatbind): Fix typo.
* libgnat/g-spipat.ads: Fix typo.
* gnat_ugn.texi: Regenerate.
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gcc/ada/
* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst
(No_Dependence): Give examples of new No_Dependence restrictions.
* gnat_rm.texi: Regenerate.
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gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Fix formatting
inconsistency.
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Generate a warning if a static predicate tests for a value that
does not belong to the parent subtype. For example, in
subtype S is Positive with Static_Predicate => S not in 0 | 11 | 222;
the 0 is ineffective because Positive already excludes that value.
Generation of this new warning is controlled by the -gnatw_s switch,
which can also be enabled via -gnatwa.
gcc/ada/
* warnsw.ads: Add a new element,
Warn_On_Ineffective_Predicate_Test, to the Opt_Warnings_Enum
enumeration type.
* warnsw.adb: Bind "-gnatw_s" to the new
Warn_On_Ineffective_Predicate_Test switch. Add the new switch to
the set of switches enabled by -gnata .
* sem_ch13.adb
(Build_Discrete_Static_Predicate): Declare new local procedure,
Warn_If_Test_Ineffective, which conditionally generates new
warning. Call this new procedure when building a new element of an
RList.
* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
Document the -gnatw_s switch (and the corresponding -gnatw_S
switch).
* gnat_ugn.texi: Regenerate.
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gcc/ada/
* doc/gnat_rm/implementation_defined_characteristics.rst: Fix
minor documentation formatting issue.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst
(Extensions_Allowed): Document string interpolation.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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This commit updates the Linux-specific chapter to add a new section
documenting the fact that PIE is enabled by default, and provides
some information about the impact that this might have on some
projects, as well as recommendations on how to handle issues.
gcc/ada/
* doc/gnat_ugn/platform_specific_information.rst
(_PIE_Enabled_By_Default_On_Linux): New section.
* gnat-style.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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Update legacy switches.
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: add gnatpp --layout
switch and update legacy switches.
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The -gnatw_q switch turns on warnings for noncomposing "="
operators. This patch updates the doc to refer to relevant
RM paragraphs.
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
Add RM references.
* gnat_ugn.texi: Regenerate.
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The wording of the introduction paragraph specified an incomplete
list of OSes. Rather than trying to update the list, this commit
changes the text to make it more general. For those parts of
this chapter which only apply to specific OSes, the documentation
is written in a way that it is clear which OS it applies to.
gcc/ada/
* doc/gnat_ugn/platform_specific_information.rst
(_Platform_Specific_Information): Minor rewording of intro text.
* gnat_ugn.texi: Regenerate.
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gcc/ada/
* doc/gnat_ugn/gnat_and_program_execution.rst (Non-Symbolic
Traceback): Add compilation line.
(Symbolic Traceback): Remove obsolete stuff.
* doc/gnat_ugn/gnat_utility_programs.rst (gnatsymbolize): Adjust.
* gnat_ugn.texi: Regenerate.
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This patch fixes a few minor issues in the GNAT library section of
the reference manual.
gcc/ada/
* doc/gnat_rm/the_gnat_library.rst: Fix minor issues.
* gnat_rm.texi: Regenerate.
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Minor updates to conf.py (comments, indentation)
gcc/ada/
* doc/share/conf.py: minor updates
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gcc/ada/
* libgnat/g-traceb.ads: Minor tweaks in the commentary.
(Executable_Load_Address): New function.
* doc/gnat_ugn/gnat_and_program_execution.rst (Non-Symbolic
Traceback): Adjust to PIE default on Linux.
(Symbolic Traceback): Likewise.
* doc/gnat_ugn/gnat_utility_programs.rst (gnatsymbolize): Likewise.
* gnat_ugn.texi: Regenerate.
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This commit adjust the sphinx configuration to use the "Read The Docs"
theme, which has the advantage of allowing the navigation bar
(containing among other things a search bar, and the TOC) to stay
fixed while scrolling the contents of the page being read. This is
particularly useful to allow access to those features while reading
a long page, for instance.
gcc/ada/
* doc/share/conf.py (extensions): Add 'sphinx_rtd_theme'.
(html_theme): Set to 'sphinx_rtd_theme'.
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gcc/ada/
* doc/gnat_rm/implementation_defined_pragmas.rst: Restore
alphabetical ordering.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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The -gnatw.h option enables warnings about "gaps" in record layout
specifications. In the case of a "partial" layout specification, where the
locations of some components are left unspecified, the resulting warnings
may be incomplete or incorrect. Document this implementation limitation.
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Improve
the description of how the -gnatw.h switch interacts with
"partial" record layout specifications (i.e., specifications where
the locations of some components are left unspecified).
* gnat_ugn.texi: Regenerate.
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Previously, control flow redundancy only checked the visited bitmap
against the control flow graph at return points and before mandatory
tail calls, missing various other possibilities of exiting a
subprogram, such as by raising or propagating exceptions, and calling
noreturn functions. The checks inserted before returns also prevented
potential tail-call optimizations.
This incremental change introduces options to control checking at each
of these previously-missed checkpoints. Unless disabled, a cleanup is
introduced to check when an exceptions escapes a subprogram. To avoid
disrupting sibcall optimizations, when they are enabled, checks are
introduced before calls whose results are immediately returned,
whether or not they are ultimately optimized. If enabled, checks are
introduced before noreturn calls and exception raises, or only before
nothrow noreturn calls.
Add examples of code transformations to the GNAT RM.
gcc/ada/
* doc/gnat_rm/security_hardening_features.rst: Document optional
hardcfr checkpoints.
* gnat_rm.texi: Regenerate.
* gnat_ugn.texi: Regenerate.
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Since gnatcheck is no longer bundled with gnat
gcc/ada/
* doc/gnat_ugn/gnat_utility_programs.rst: Remove gnatcheck
reference.
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