| Commit message (Collapse) | Author | Age | Files | Lines |
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Some newlib headers use the __extension__ keyword which suppresses
warnings for gcc extensions in strict mode. CompCert now ignores
this keyword for the gnu backends.
Also it seems that stddef of the gcc defines wint_t even though
it should not. However some libs rely on this. So wint_t is now
defined in CompCert's stddef header.
Bug 17613.
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- Rename '-fstruct-return' into '-fstruct-passing', because this emulation affects both function result passing and function argument passing. Keep '-fstruct-return' as a deprecated synonymous for '-fstruct-passing'
- Remove the ability to change the ABI for struct passing via the '-fstruct-passing=<abi>' and '-fstruct-return=<abi>' command-line flags. This was more confusing than useful.
- Produce an error if a struct/union is passed as function argument and '-fstruct-passing' is not set. This used to be supported, using CompCert's default ABI for passing struct arguments. However, this default ABI does not match any of the standard ABIs of our target platforms, so it is better to reject than to silently produce ABI-incompatible code.
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Since the identifier of a function definition and of its declaration
are equal we only should remove functions if the function iteself is
removed.
Bug 17724.
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On windows opening files in text mode can result in errors due to
non-windows compatible input. Thus open files only in binary mode.
Bug 17664
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This seems to agree with clang and with the emacs C mode.
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and merging two error states into one. There should be no observable change.
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Regression test added in regression/initializers.c
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Parser : duplicate identifier tokens, fix K&R definition parsing
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handcrafted.messages
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- Added a Cabs.PROTO_OLD constructor to Cabs.decl_type
- Refactored the Parser.vy and pre_parser.mly grammars
- Rewritten the conversion of old function definitions to new-style
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Fix in cparser/GNUmakefile.
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Update configure to require Menhir 20151110.
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Remove "&" which was a typo and did not make sense.
Use "command -v" instead of "which" (more efficient).
Use "=" instead of ":=" (more efficient).
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Use tail-recursive operations to implement transformations on initializers for global arrays. This way, very large static initializers no longer cause stack overflows at compile-time.
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Debug statements introduced during the translation result in warnings
when they are introduced at the head of the switch. Since they are
not used and the warning is not necessary we can remove them before.
Fix 17580.
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compress multiple whitespace characters into just one space character.
This is done before the call to [sanitize], which replaces special characters with a dot.
This produces more a readable result when the error spans multiple lines.
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When [debug] is [false], there are a few places where we silently
ignore an error.
This should not make any difference if everything works as planned.
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Fixed one error message and removed two comments.
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Bug 17481.
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Conflicts:
Makefile.extr
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Conflicts:
Makefile.extr
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Since the strip functions might be useful in other context and is
more general then the debug information.
Bug 17392.
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This requires the development version of Menhir, to be released soon.
In summary:
handcrafted.messages is new.
It contains a mapping of erroneous sentences to error messages,
together with a lot of comments.
Makefile.extr is new.
It contains a rule to generate cparser/pre_parser_messages.ml
based on this mapping.
cparser/ErrorReports.{ml,mli} are new.
They construct syntax error messages, based on the compiled mapping.
cparser/Lexer.mll is modified.
The last two tokens that have been read are stored in a buffer.
ErrorReports is called to construct a syntax error message.
cparser/GNUmakefile is new.
It offers several commands for working on the pre-parser.
cparser/deLexer.ml is new.
It is a script (it is not linked into CompCert).
It translates the symbolic name of a token to an example of this
token in concrete C syntax.
It is used by [make -C cparser concrete] to produce the .c files
in tests/generated/.
cparser/tests/generated/Makefile is new.
It runs ccomp, clang and gcc on each of the generated C files,
so as to allow a comparison of the error messages.
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This means that CompCert must now be compiled in --table mode.
At this point, the error message for a syntax error is still just "syntax error".
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This affects in which states errors are detected,
but does not change the language that is accepted.
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This allows us to give a better error message in one state.
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For the first one, this is fine; the error is caught by a type check later on.
For the second one, it is temporary. More thought is needed about the syntax
of K&R functions anyway, as Jacques-Henri and I discovered that it is currently
broken (it mis-interprets some function definitions).
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list.
This saves 7 states and 4 error states.
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This creates more states and does not change the number of error states.
It should make it easier to give a good error message in at least 2 states.
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[declaration_specifier_no_typedef_name*].
This replaces a right-recursive list with a left-recursive list.
This saves 2 states and 6 error states.
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This results in slightly fewer states.
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elegant manner.
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