Enforce a more explicit distinction of crtbegin objects holding
either functions with ctor/dtor attributes or _ctors/_dtors arrays,
or none of the two (no array, no attributes). Then allow/enforce
different linking strategies for VxWorks 7.
2018-05-29 Olivier Hainque <hainque@adacore.com>
gcc/ada/
* vx_crtbegin.inc: Use a consistent naming convention for the
registration/deregistration functions across RTP or kernel. Remove the
ctor/dtor attribute setting based on RTP/kernel, expect the optional
attribute extension to be provided by includers instead.
* vx_crtbegin.c: Mere inclusion of vx_crtbegin.inc with empty attribute
extension for the registration/deregistration functions.
* vx_crtbegin_attr.c: New file. Include vx_crtbegin.inc with explicit
constructor/destructor attribute extensions.
* vx_crtbegin_array.c: New file. Include vx_crtbegin.inc with empty
attribute extensions and declare _ctors/_dtors arrays.
* vx_crtbegin_auto.c: Remove.
* libgnat/system-vxworks7-aarch64-rtp-smp.ads: Use
vxworks7-gnat-crtbe-link.spec.
* libgnat/system-vxworks7-aarch64.ads: Likewise.
* libgnat/system-vxworks7-e500-rtp-smp.ads: Likewise.
* libgnat/system-vxworks7-ppc-rtp-smp.ads: Likewise.
* libgnat/system-vxworks7-ppc64-rtp-smp.ads: Likewise.
* libgnat/system-vxworks7-x86-kernel.ads: Likewise.
* libgnat/system-vxworks7-x86-rtp-smp.ads: Likewise.
* libgnat/system-vxworks7-x86_64-kernel.ads: Likewise.
* libgnat/system-vxworks7-x86_64-rtp-smp.ads: Likewise.
From-SVN: r260876
This decouples -gnatRj from the destination, either standard output or file,
so that it only toggles the format of the representation information.
2018-05-29 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst (Debugging
Control): Adjust description of -gnatRj.
* gnat_ugn.texi: Regenerate.
* opt.ads (List_Representation_Info_To_JSON): Likewise.
* repinfo.adb (List_Rep_Info): Do not automatically create a file
if List_Representation_Info_To_JSON is true.
* switch-c.adb (Scan_Front_End_Switches) <R>: Remove incompatibility
check between -gnatRj and -gnatRs.
* usage.adb (Usage): Adjust description of -gnatRj.
From-SVN: r260873
Fix Normalize_Pathname to avoid a constraint error.
2018-05-29 Pascal Obry <obry@adacore.com>
gcc/ada/
* libgnat/s-os_lib.adb (Normalize_Pathname): Fix handling of ".." in
the root directory.
gcc/testsuite/
* gnat.dg/normalize_pathname.adb: New testcase.
From-SVN: r260872
2018-05-29 Doug Rupp <rupp@adacore.com>
gcc/ada/
* libgnat/a-calend.adb (Epoch_Offset): Move from body to ...
* libgnat/a-calend.ads (Epoch_Offset): to private part of spec
* libgnat/a-calcon.ads (To_Unix_Nano_Time): New function spec.
* libgnat/a-calcon.adb (To_Unix_Nano_Time): New function body.
From-SVN: r260870
This arranges for the Discriminant_Number of discriminants to be output
by -gnatR in JSON mode. This number is referenced in symbolic expressions
present for offsets and sizes, so its definition is also required for the
sake of completeness.
2018-05-29 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* repinfo.ads (JSON format): Document new pair for components.
* repinfo.adb (Derived_Discriminant): New function.
(List_Structural_Record_Layout): Add Outer_Ent parameter and pass it
in recursive calls. If the record type is the parent of an extension,
find and list the derived discriminant from the extension, if any.
(List_Component_Layout): List the Discriminant_Number in JSON mode.
(List_Record_Info): Adjust call to List_Structural_Record_Layout.
From-SVN: r260869
This adds a new variant to the -gnatR switch, namely -gnatRj, which causes
the compiler to output representation information to a file in the JSON
data interchange format. It can be combined with -gnatR0/1/2/3/m (but is
incompatible with -gnaRe and -gnatRs).
The information output in this mode is a superset of that output in the
traditional -gnatR mode, but is otherwise equivalent for the common part.
2018-05-29 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst (Alphabetical
List of All Switches): Document -gnatRj.
(Debugging Control): Likewise.
* gnat_ugn.texi: Regenerate.
* opt.ads (List_Representation_Info_To_JSON): New boolean variable.
* osint-c.adb (Create_Repinfo_File): Use the .json instead of .rep
extension if List_Representation_Info_To_JSON is true.
* repinfo.ads: Document the JSON output format.
* repinfo.adb (List_Location): New procedure.
(List_Array_Info): Add support for JSON output.
(List_Entities): Likewise.
(Unop): Likewise.
(Binop): Likewise.
(Print_Expr): Likewise.
(List_Linker_Section): Likewise.
(List_Mechanisms): Likewise.
(List_Name): Likewise.
(List_Object_Info): Likewise.
(List_Record_Info): Likewise.
(List_Component_Layout): Likewise. Add Indent parameter.
(List_Structural_Record_Layout): New procedure.
(List_Attr): Add support for JSON output.
(List_Type_Info): Likewise.
(Write_Unknown_Val): Likewise.
* switch-c.adb (Scan_Front_End_Switches) <R>: Deal with 'j'.
* usage.adb (Usage): List -gnatRj.
From-SVN: r260868
This extracts a worker procedure for printing the layout of a single component
from List_Record_Layout so as to make the next change more readable.
2018-05-29 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* repinfo.adb (List_Component_Layout): New procedure extracted from...
(List_Record_Layout): ...here. Invoke it.
From-SVN: r260867
This factors out the various cases where a marker for an unknown value is
output by the -gnatR switches. No functional changes.
2018-05-29 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* repinfo.adb (Write_Unknown_Val): New procedure.
(List_GCC_Expression): Call it.
(List_Record_Layout): Likewise.
(Write_Val): Likewise.
From-SVN: r260866
2018-05-29 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
gcc/ada/
* exp_ch4.adb (Expand_N_Op_Abs): Clear Do_Overflow_Check when inserting
code to do check.
From-SVN: r260865
2018-05-29 Arnaud Charlet <charlet@adacore.com>
gcc/ada/
* lib-writ.adb (Write_ALI): Do not use new function from s-casuti yet.
This breaks build of cross compilers with older versions of GNAT, so
better avoid it.
From-SVN: r260864
2018-05-29 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
gcc/ada/
* exp_ch4.adb (Expand_N_Op_Abs): Always do range check against 'First.
From-SVN: r260862
The information displayed by -gnatRm was using slightly different naming
and formatting conventions than the rest of the -gnatR information with
no justification, so this adjusts it for the sake of consistency.
For the following package:
package P is
function F (I : Integer) return Integer;
type Rec is limited record
I : Integer;
end record;
procedure P1 (R : Rec; I : out Integer);
procedure P2 (R : Rec; I : out Integer);
pragma Linker_Section (P2, ".my_section");
package Inner is
procedure P3;
end Inner;
end P;
package body P is
function F (I : Integer) return Integer is
begin
return I;
end;
procedure P1 (R : Rec; I : out Integer) is
begin
I := R.I;
end;
procedure P2 (R : Rec; I : out Integer) is
begin
I := R.I;
end;
package body Inner is
procedure P3 is
begin
null;
end;
end Inner;
end P;
the output of -gnatRm must be:
Representation information for unit P (body)
--------------------------------------------
Representation information for unit P (spec)
--------------------------------------------
function F declared at p7.ads:3:12
convention : Ada
I : passed by copy
returns by copy
for Rec'Size use 32;
for Rec'Alignment use 4;
for Rec use record
I at 0 range 0 .. 31;
end record;
procedure P1 declared at p7.ads:9:13
convention : Ada
R : passed by reference
I : passed by copy
procedure P2 declared at p7.ads:11:13
convention : Ada
R : passed by reference
I : passed by copy
pragma Linker_Section (P2, ".my_section");
procedure Inner.P3 declared at p7.ads:16:15
convention : Ada
2018-05-29 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* repinfo.adb (List_Entities): Do not list the Linker_Section for
subprograms here...
(List_Mechanisms): ...but here instead. Use consistent name output
and formatting conventions.
From-SVN: r260861
Normally, ALI files refer to source files using simple names. This allows files
to be moved around without disturbing things (causing extra recompilations,
etc). However, for configuration files, the full pathname is stored. This patch
preparates the code base to store the simple name in this case.
2018-05-29 Bob Duff <duff@adacore.com>
gcc/ada/
* lib-writ.adb (Write_ALI): Cleanup: avoid use of global var; call new
To_Lower function.
* libgnat/s-casuti.ads, libgnat/s-casuti.adb (To_Upper, To_Lower,
To_Mixed): New functions.
* osint.adb: Cleanup: use Is_Directory_Separator, which correctly
allows both '\' and '/' on Windows.
From-SVN: r260860
2018-05-29 Tom de Vries <tom@codesourcery.com>
* lib/scanasm.exp (scan-stack-usage, scan-stack-usage-not)
(scan-ada-spec, scan-ada-spec-not, scan-lto-assembler):
Use proc name as first argument to dg-scan.
From-SVN: r260858
2018-05-29 Tom de Vries <tom@codesourcery.com>
* lib/scanasm.exp (scan-hidden, scan-not-hidden): Handle being called
with no arguments.
From-SVN: r260857
* config.gcc: Identify FreeBSD 3.x and 4.x as unsupported.
* config/freebsd-spec.h (FBSD_LIB_SPEC): Only consider FreeBSD 5
and later.
From-SVN: r260852
2018-05-28 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libgfortran/85840
* io/write.c (write_real, write_real_g0, write_complex): Use
separate local variables for the float string length.
From-SVN: r260851
2018-05-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/85933
* tree-vect-data-refs.c (vect_record_base_alignments): Only
look at stmts marked as vectorizable.
From-SVN: r260848
In dwarf2out.c dwarf2out_var_location () we create loclabels that might
contain -1 (for example ".LVL5-1"). Technically those are expressions,
not just plain labels. But they work fine everywhere we use them, except
when calculating an uleb128 delta between two labels.
For example we might create the following DWARF5 location list entry:
.byte 0x3 # DW_LLE_startx_length (*.LLST0)
.uleb128 0x6 # Location list range start index (*.LVL5-1)
.uleb128 .LFE1-.LVL5-1 # Location list length (*.LLST0)
.uleb128 0x1 # Location expression size
.byte 0x54 # DW_OP_reg4
.byte 0 # DW_LLE_end_of_list (*.LLST0)
Note the length is calculated using .uleb128 .LFE1-.LVL5-1. This is
wrong, since both .LVL5 and 1 are substracted from .LFE1, instead of
1 being subtracted from .LVL5 first, before substracting from .LFE1.
This happens because dw2_asm_output_delta_uleb128 expects two plain
labels and simply inserts a minus sign between them. To fix this we
simply look if the second label is actually an expression containing
a minus sign and then add brackets around it. That will emit the
correct .uleb128 expression:
.uleb128 .LFE1-(.LVL5-1) # Location list length (*.LLST0)
We cannot simply generate the loclabel containing brackets directly
because we do use them also in contexts that don't take a full
expression (for example we use them with .quad too).
gcc/
* dwarf2asm.c (dw2_asm_output_delta_uleb128): Add brackets around
lab2 if it is an expression containing a minus sign.
From-SVN: r260845
This removes the recently added Valop as redundant. No functional changes.
2018-05-28 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* repinfo.adb (List_GCC_Expression): Remove Valop and replace calls to
it with calls to Unop.
From-SVN: r260843
This removes the Truth_Andif_Expr and Truth_Orif_Expr codes for expressions
handled by the repinfo unit, since they are redundant with Truth_And_Expr
and Truth_Or_Expr respectively in this context. No functional changes.
2018-05-28 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* repinfo.ads (TCode): Adjust range.
(Truth_Andif_Expr): Remove.
(Truth_Orif_Expr): Likewise.
(Truth_And_Expr .. Dynamic_Val): Adjust value.
* repinfo.adb (Print_Expr): Remove handling of Truth_{And,Or}if_Expr.
(Rep_Value): Likewise.
* repinfo.h (Truth_Andif_Expr): Remove.
(Truth_Orif_Expr): Likewise.
(Truth_And_Expr .. Dynamic_Val): Adjust value.
* gcc-interface/decl.c (annotate_value) <TRUTH_ANDIF_EXPR>: Fall
through to TRUTH_AND_EXPR case.
<TRUTH_ORIF_EXPR>: Fall through to TRUTH_OR_EXPR case.
From-SVN: r260842
2018-05-28 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* exp_unst.adb (Visit_Node): For indexed components and attribute
references, examine index expressions or associated expressions as well
to record uplevel references.
(Vist_Node): For function and procedure calls, if a formal is an
unconstrained array and the actual is constrained, check whether bounds
of actual have uplevel references.
From-SVN: r260841
2018-05-28 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* einfo.ads, einfo.adb: Exceptions can be uplevel references, and thus
they can appear as components of activation records.
* exp_unst.adb (Visit_Node): A reference to an exception may be an
uplevel reference.
From-SVN: r260840
This adjusts the previous change to the cases where the array type is not
yet frozen and, therefore, where Size_Depends_On_Discriminant is not yet
computed, by doing the computation manually.
2018-05-28 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* exp_ch4.adb (Expand_Composite_Equality): Compute whether the size
depends on a discriminant manually instead of using the predicate
Size_Depends_On_Discriminant in the array type case.
gcc/testsuite/
* gnat.dg/renaming12.adb, gnat.dg/renaming12.ads: New testcase.
From-SVN: r260839
2018-05-28 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* exp_unst.adb (Check_Static_Type): For a record subtype, check
discriminant constraints as well.
(Visit_Node): For a selected component, check type of prefix, as is
done for indexed components and slices.
From-SVN: r260838
2018-05-28 Javier Miranda <miranda@adacore.com>
gcc/ada/
* exp_ch4.adb (Real_Range_Check): Add a temporary to store the integer
value when converting a float value to a fixed-point value. This is
required for CCG because it handles fixed-point types by means of
unsigned integer type variables. The range check is now performed using
the integer value stored in this temporary.
From-SVN: r260837
SPARK Reference Manual changed to accept attributes First, Last and Length
as not leading to an evaluation of a part of the prefix object. This is
reflected here in the checking code for that rule.
2018-05-28 Yannick Moy <moy@adacore.com>
gcc/ada/
* sem_util.adb (Is_OK_Volatile_Context): Add attributes First, Last and
Length as valid non-interfering contexts for SPARK.
From-SVN: r260836
2018-05-28 Claire Dross <dross@adacore.com>
gcc/ada/
* sem_disp.ads, sem_disp.adb (Inheritance_Utilities): Package for
generic inheritance utilities.
(Generic_Inherited_Subprograms): Generic version of
Inherited_Subprograms, generic in Find_Dispatching_Type function.
(Generic_Is_Overriding_Subprogram): Generic version of
Is_Overriding_Subprogram, generic in Find_Dispatching_Type function.
(Inherited_Subprograms): Instance of Generic_Inherited_Subprograms with
Sem_Disp.Find_Dispatching_Type.
(Is_Overriding_Subprogram): Instance of
Generic_Is_Overriding_Subprogram with Sem_Disp.Find_Dispatching_Type.
(Inheritance_Utilities_Inst): Instance of Inheritance_Utilities
with Sem_Disp.Find_Dispatching_Type.
From-SVN: r260835
This fixes a long-standing issue with the expansion of equality functions
generated for discriminated record types with variant part. In this case
the front-end recursively expands equality functions for the composite
sub-components, in particular the array sub-components.
But it systematically uses the unconstrained base type for them, which leads
to both a more complex equality function, because of the need to compare
the bounds, and an additional unchecked conversion from type to base type.
Now this unchecked conversion may block a further expansion of the array
sub-component, for example if it is a large array of record types subject
to a component clause that causes it not to start on a byte boundary, and
thus may lead to an internal error downstream in the back-end.
2018-05-28 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* exp_ch4.adb (Expand_Composite_Equality): For a composite (or FP)
component type, do not expand array equality using the unconstrained
base type, except for the case where the bounds of the type depend on a
discriminant.
gcc/testsuite/
* gnat.dg/rep_clause6.adb, gnat.dg/rep_clause6.ads: New testcase.
From-SVN: r260834
2018-05-28 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* einfo.ads, einfo.adb (Needs_Activation_Record): New flag on
access-to-subprogram types, to indicate that an indirect call through
such a type requires an activation record when compiling for LLVM.
* sem_ch3.adb (Access_Subprogram_Declaration): Set new flag as needed.
From-SVN: r260833
This patch improves the accuracy of conversions from a floating point to
a fixed point type when the fixed point type has a specified Snall that is
not a power of two. Previously the conversion of Fixed_Point_Type'First to
some floating point number and back to Fixed_Point_Type raised Constraint
error. This result is within the accuracy imposed by tne Numerics annex of
the RM but is certainly undesirable. This patch transforms the conversion
to avoid extra manipulations of the 'Small of the type, so that the
identity:
Fixed_T (Float_T (Fixed_Val)) = Fixed_Val
holds over the range of Fixed_T.
2018-05-28 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* exp_ch4.adb (Real_Range_Check): Specialize float-to-fixed conversions
when bounds of fixed type are static, to remove some spuerfluous
implicit conversions and provide an accurate result when converting
back and forth between the fixed point type and a floating point type.
gcc/testsuite/
* gnat.dg/fixedpnt5.adb: New testcase.
From-SVN: r260832
2018-05-28 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
gcc/ada/
* exp_unst.adb (Check_Static_Type): Add argument to indicate node to be
replaced, if any; all callers changed.
(Note_Uplevel_Ref): Likewise. Also replace reference to deferred
constant with private view so we take the address of that entity.
(Note_Uplevel_Bound): Add argument to indicate node to be replaced, if
any; all callers changed. Handle N_Indexed_Component like
N_Attribute_Reference. Add N_Type_Conversion case.
(Visit_Node): Indexed references can be uplevel if the type isn't
static.
(Unnest_Subprograms): Don't rewrite if no reference given. If call has
been relocated, set first_named pointer in original node as well.
From-SVN: r260830
2018-05-28 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* exp_aggr.adb (Flatten): Copy tree of expression in a component
association with a range or a set of discrete choices, rather than
relocating the node. This avoids inconsistencies in the tree when
handling nested subprograms with uplevel references for LLVM.
From-SVN: r260829
2018-05-28 Bob Duff <duff@adacore.com>
gcc/ada/
* libgnat/a-convec.adb (Query_Element): Minor cleanup: remove an
unnecessary use of 'Unrestricted_Access.
From-SVN: r260826
2018-05-28 Patrick Bernardi <bernardi@adacore.com>
gcc/ada/
* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Update the
description of the -D binder switch to reflect current usage.
* gnat_ugn.texi: Regenerate.
From-SVN: r260824
