| Commit message (Collapse) | Author | Age | Files | Lines |
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Hide the reference used internally behind the interface and added
some functions to access the needed values.
Bug 18394
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Removed unused code, factored out common functions and added an
interface file.
Bug 18394
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The code was mostly there for documentation effort. So warning
27 is deactivated again.
Bug 18349
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Removed some unused functions and opens.
Bug 18394
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ARM: add __builtin_clzl, __builtin_clzll
IA32: add __builtin_clzl, __builtin_clzll,
__builtin_ctzl, __builtin_ctzll
Add corresponding tests in tests/regression/
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compatibility, and not "unsigned int", as previously implemented.
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The binutils in bsd seem to support cfi directives but not the
cfi_sections directive.
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On older version of the binutils the cfi directives are not always
supported so we only print cfi_sections if the corresponding .ini
setting is set to true.
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Bug 17450
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Conflicts:
arm/TargetPrinter.ml
backend/CMparser.mly
backend/SelectLongproof.v
backend/Selectionproof.v
cfrontend/C2C.ml
checklink/Asm_printers.ml
checklink/Check.ml
checklink/Fuzz.ml
common/AST.v
debug/DebugInformation.ml
debug/DebugInit.ml
debug/DwarfPrinter.ml
debug/DwarfTypes.mli
debug/Dwarfgen.ml
exportclight/ExportClight.ml
ia32/TargetPrinter.ml
powerpc/Asm.v
powerpc/SelectOpproof.v
powerpc/TargetPrinter.ml
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Bug 17392
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The gcc produces DW_AT_ranges for non-contiguous address ranges, like
compilation units containing functions which are placed in different
ELF-sections or lexical scopes that are split up. With this commit
CompCert also uses this DWARF v3 feature for gnu backend based targets.
In order to ensure backward compability a flag is added which avoids
this and produces debug info in DWARF v2 format.
Bug 17392.
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In contrast to the dcc, the gcc uses address ranges to express
non-contiguous range of addresses. As a first step we set the
start and end addresses for the different address ranges for
the compilation unit by using the start and end addresses of
functions.
Bug 17392.
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Bug 17392.
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GCC prints all string larger than 3 characters in the debug_str
section which reduces the size of the debug information since entries
containing the same string now map to the same string in the
debug_str sections.
Bug 17392.
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The AST.ident type represents source-level identifiers as unique positive numbers. However, the mapping identifiers <-> AST.ident differs between runs of CompCert on different source files. This is problematic when we need to produce or recognize external functions and builtin functions with fixed names, for example:
* in $ARCH/Machregs.v to define the register conventions for builtin functions;
* in the VST program logic from Princeton to treat thread primitives specially.
So far, we used AST.ident_of_string to recover the ident associated with a string. However, this function is defined in OCaml and doesn't execute within Coq. This is a problem both for VST and for future executability of CompCert within Coq.
This commit replaces "ident" by "string" in the arguments of EF_external, EF_builtin, EF_inline_asm, EF_annot, and EF_annot_val. This provides stable names for externals and builtins, as needed. For inline asm and annotations, it's a matter of taste, but using strings feels more natural. EF_debug keeps using idents, since some kinds of EF_debug annotations talk about program variables.
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Like for arm and ppc the functions for section names and start and
end addresses of compilation units are defined and the print_annot
function is moved to Asmexpandaux.ml.
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The name_of_section function no returns the correct name for the
debug sections, the prologue and epilogue directives are added and
the labels for the live ranges are introduced in the Asmexpand pass.
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If a user uses the #pragma use_section for functions the diab linker
requires a separate debug_info section for each entry. This commit
adds functionality to emulate this behavior.
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Debuging code.
The old functions to store the symbol for the Global variables and retrive this
is no longer needed since the atom is stored in DebugInformation. Also the
Debug.Abbrev module is no longer needed.
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This commit adds furher support for location information for local
variables and starts with the implementation of the debug_loc section.
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Instead of creating separate annotations for the local variables
we call the Debug.add_lvar_scope and we construct a mapping from
function id + scope id to scope information.
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This reverts commit 861292a6c5e58b4f78bef207c717b801b3fc1fed.
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Added a new file debug/Debug.ml which will be the interface between for
generating and printing the debuging information. Currently it contains
only the code for the line directived.
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Merge branch 'master' into debug_locations
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SimplLocals:
- record locations of stack-allocated variables with annotations
(of kind 5) at the beginning of the function;
- mark every assignment to non-stack-allocated variables with an
annotation of kind 2.
Debugvar: (new pass!)
- perform availability analysis for debug annotations of kind 2
- insert "start of live range" and "end of live range" annotations
(kind 3 and 4) to delimit intervals of PCs where the location
of a local variable is known.
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Use EF_debug instead of EF_annot for line number annotations.
Introduce PrintAsmaux.print_debug_info (very incomplete).
powerpc/Asmexpand: revise expand_memcpy_small.
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__builtin_get_spr() and __builtin_set_spr() work, but horrible error
message if the SPR argument is not a constant.
powerpc/AsmToJSON.ml needs updating.
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structured builtin arguments and results.
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Before, the back-end languages had distinct instructions
- Iannot for annotations, taking structured expressions (annot_arg)
as arguments, and producing no results'
- Ibuiltin for other builtins, using simple pseudoregs/locations/registers
as arguments and results.
This branch enriches Ibuiltin instructions so that they take structured
expressions (builtin_arg and builtin_res) as arguments and results.
This way,
- Annotations fit the general pattern of builtin functions,
so Iannot instructions are removed.
- EF_vload_global and EF_vstore_global become useless, as the
same optimization can be achieved by EF_vload/vstore taking
a structured argument of the "address of global" kind.
- Better code can be generated for builtin_memcpy between stack locations,
or volatile accesses to stack locations.
Finally, this commit also introduces a new kind of external function,
EF_debug, which is like EF_annot but produces no observable events.
It will be used later to transport debug info through the back-end,
without preventing optimizations.
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Conflicts:
debug/CtoDwarf.ml
debug/DwarfPrinter.ml
debug/DwarfTypes.mli
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Plus: update comments and credit Bernhard Schommer.
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according to Intel convention (instr destination, argument).
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More bugs remain.
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Merge branch 'asmexpand' of github.com:AbsInt/CompCert
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This reverts commit 777566e81b9762d6bdc773a1f63d56a7ac97433c, reversing
changes made to daf9ac64fc9611ecf09d70560a6fa1ba80b9c9c1.
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