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* Take advantage of ARMv6T2/ARMv7 instructions even if not in Thumb2 mode (#203)Gergö Barany2017-09-181-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Clarify that ARMv6 is in fact ARMv6T2 The ARMv6 comes in two flavors depending on the version of the Thumb instruction set supported: ARMv6 for the original Thumb, ARMv6T2 for Thumb2. CompCert only supports Thumb2, so its ARMv6 architecture should really be called ARMv6T2. This makes a difference: the GNU assembler rejects most of the instructions CompCert generates for ARMv6 with "-mthumb" if the architecture is specified as ".arch armv6" as opposed to ".arch armv6t2". This patch fixes the architecture specification in the target printer and the internal name of the architecture. It does not change the configure script's flags to avoid breaking changes. * Always use ARM movw/movt to load large immediates These move-immediate instructions used to be only emitted in Thumb mode, not in ARM mode. As far as I understand ARM's documentation, these instructions are available in *both* modes in ARMv6T2 and above. This should cover all of CompCert's ARM targets. Tested for ARMv6 and ARMv7, both with and without Thumb2. The behavior is now identical to Clang, and the GNU assembler accepts these instructions in all configurations. * Separate ARMv6 and ARMv6T2; no movw/movt on ARMv6 - define separate architecture models for ARMv6 and ARMv6T2 - introduce `Archi.move_imm` parameter on ARM to identify models with `movw`/`movt` move-immediate instructions (all except ARMv6, in both ARM and Thumb mode) * Fixes for support for architectures with Thumb2 - rename relevant parameter to `Archi.thumb2_support` - on ARMv6 without Thumb2, silently accept -marm flag (but not -mthumb) - allow generation of `sbfx` in ARM mode if Thumb2 is supported
* Document -finline in help.Bernhard Schommer2017-08-241-0/+1
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* Extended support for the nostartfiles option.Bernhard Schommer2017-08-231-6/+11
| | | | | For dcc one needs to pass -Ws to tell the linker that it should not link the default startfiles.
* Formatted json printing.Bernhard Schommer2017-06-281-8/+23
| | | | | | | | | Instead of just dumping the json output it is now a little bit formatted for better reading. Furthermore the AsmToJson function for the non powerpc targets now prints the json value "null" sucht that the resulting json file is valid json.
* Added a little bit more compilation info to sdump.Bernhard Schommer2017-06-263-4/+16
| | | | | | The additional compilation information contains the file, command line (after @-file expansion) and the current working directory. Bug 21690
* Hybrid 64bit/32bit PowerPC portBernhard Schommer2017-05-032-7/+7
| | | | | | | | | | | | | This commit adds code generation for 64bit PowerPC architectures which execute 32bit applications. The main difference to the normal 32bit PowerPC port is that it uses the available 64bit instructions instead of using the runtime library functions. However pointers are still 32bit and the 32bit calling convention is used. In order to use this port the target architecture must be either in Server execution mode or if in Embedded execution mode the high order 32 bits of GPRs must be implemented in 32-bit mode. Furthermore the operating system must preserve the high order 32 bits of GPRs.
* RISC-V port and assorted changesXavier Leroy2017-04-282-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commits adds code generation for the RISC-V architecture, both in 32- and 64-bit modes. The generated code was lightly tested using the simulator and cross-binutils from https://riscv.org/software-tools/ This port required the following additional changes: - Integers: More properties about shrx - SelectOp: now provides smart constructors for mulhs and mulhu - SelectDiv, 32-bit integer division and modulus: implement constant propagation, use the new smart constructors mulhs and mulhu. - Runtime library: if no asm implementation is provided, run the reference C implementation through CompCert. Since CompCert rejects the definitions of names of special functions such as __i64_shl, the reference implementation now uses "i64_" names, e.g. "i64_shl", and a renaming "i64_ -> __i64_" is performed over the generated assembly file, before assembling and building the runtime library. - test/: add SIMU make variable to run tests through a simulator - test/regression/alignas.c: make sure _Alignas and _Alignof are not #define'd by C headers commit da14495c01cf4f66a928c2feff5c53f09bde837f Author: Xavier Leroy <xavier.leroy@inria.fr> Date: Thu Apr 13 17:36:10 2017 +0200 RISC-V port, continued Now working on Asmgen. commit 36f36eb3a5abfbb8805960443d087b6a83e86005 Author: Xavier Leroy <xavier.leroy@inria.fr> Date: Wed Apr 12 17:26:39 2017 +0200 RISC-V port, first steps This port is based on Prashanth Mundkur's experimental RV32 port and brings it up to date with CompCert, and adds 64-bit support (RV64). Work in progress.
* Add optimization option finline.Bernhard Schommer2017-04-072-0/+2
| | | | | | The new option f(no-)inline controlls whether inlining is active or not. Bug 21343.
* Added missing dltl to dall.Bernhard Schommer2017-03-081-0/+1
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* Merge pull request #167 from AbsInt/pipe_prerequisiteXavier Leroy2017-02-157-28/+21
|\ | | | | Introduced configuration variable for gnu systems.
| * Introduced configuration variable for gnu systems.Bernhard Schommer2017-02-137-28/+21
| | | | | | | | | | | | | | The variable gnu_toolchain is true if a gnu toolchain is used and false in all other cases. The variable avoids the explicit test whether the system string is diab and should be easier to change. Bug 20521.
* | Merge pull request #170 from AbsInt/remove_cminorXavier Leroy2017-02-151-65/+0
|\ \ | | | | | | | | | | | | | | | Remove CompCert's ability to parse and compile source files written in Cminor This facility is no longer used (as far as we know) and is painful to maintain.
| * | Removed CMinor import. Bug 20992Bernhard Schommer2017-02-141-65/+0
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* | | Removed superfluous semicolon.Bernhard Schommer2017-02-141-1/+1
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* | Remove Optionsprinter. Bug 20993Bernhard Schommer2017-02-142-155/+1
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* | Use "Local" as prefixXavier Leroy2017-02-131-1/+1
|/ | | | | Open Local becomes Local Open. This silences Coq 8.6's warning. Also: remove one useless Require-inside-a-module that caused another warning.
* Merge branch 'elaboration-of-attributes'Xavier Leroy2017-02-061-0/+1
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| * Refactor the classification of attributesXavier Leroy2017-02-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce Cutil.class_of_attribute to return the class of the given attribute: one among Attr_type attribute related to types (e.g. "aligned") Attr_struct attribute related to struct/union/enum types (e.g. "packed") Attr_function attribute related to function types (e.g. "noreturn") Attr_name attribute related to variable and function declarations (e.g. "section") Attr_unknown attribute was not declared Cutil.declare_attribute is used to associate a class to a custom attribute. Standard attributes (const, volatile, _Alignas, etc) are Attr_type. cfronted/C2C.ml: declare the few attributes that CompCert honors currently. cparser/GCC.ml: a bigger list of attributes taken from GCC, for reference only.
* | Remove overriding open in Interp.Bernhard Schommer2017-02-031-11/+11
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* Fixed indention of help.Bernhard Schommer2017-01-271-3/+3
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* Added option -fmax-errors.Bernhard Schommer2017-01-262-0/+22
| | | | | | | The option -fmax-errors limits the number of errors that are reported before the compilation is aborted. The default 0 means no limit. Bug 19872
* Allow .sx files for preprocessed assembler files.Bernhard Schommer2017-01-251-0/+3
| | | | | GCC treats files with .sx extension in the same way as it treats files with .S suffix.
* Use quoted strings.Bernhard Schommer2017-01-184-127/+138
| | | | | | Instead of escaping all newlines etc for the help options use quoted strings. Bug 19872
* Added backtrace handler.Bernhard Schommer2017-01-171-0/+2
| | | | | | | | If CompCert crashes because of an uncaught exception the exception is caught toplevel and the backtrace is printed plus an additional message to include the backtrace in a support request, if buildnr and tag are available. Bug 20681.
* add parameter to enforce a specific compcert build number for QSKs (bug 20595)Michael Schmidt2016-12-161-2/+14
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* Also exit on errors. Bug 19872Bernhard Schommer2016-12-151-1/+1
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* Check errors at the end. Bug 19872Bernhard Schommer2016-12-151-0/+1
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* remove unused file, update tests for arch-field of configuration filesMichael Schmidt2016-11-031-1/+1
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* Merge pull request #145 from AbsInt/64Xavier Leroy2016-10-273-11/+14
|\ | | | | | | Support for 64-bit target processors + support for x86 in 64-bit mode
| * Make Archi.ptr64 always computable, and reorganize files accordingly: ia32 ↵Xavier Leroy2016-10-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | -> x86/x86_32/x86_64 Having Archi.ptr64 as an opaque Parameter that is determined at run-time depending on compcert.ini is problematic for applications such as VST where functions such as Ctypes.sizeof must compute within Coq. This commit introduces two versions of the Archi.v file, one for x86 32 bits (with ptr64 := false), one for x86 64 bits (with ptr64 := true). Unlike previous approaches, no other file is duplicated between these two variants of x86. While we are at it, I renamed "ia32" into "x86" everywhere. "ia32" is Intel speak for the 32-bit architecture. It is not a good name to describe both the 32 and 64 bit architectures. Finally, .depend is no longer under version control and is regenerated when the target architecture changes. That's because the location of Archi.v differs between the ports that have 32/64 bit variants (x86 so far) and the ports that have only one bitsize (ARM and PowerPC so far).
| * driver/Interp: updateXavier Leroy2016-10-241-8/+8
| | | | | | | | | | Cherry-pick commit d1311e6 from trunk. Simplify convert_external_arg so that it works both in 32 and 64 bits.
| * Support for 64-bit architectures: update the PowerPC portXavier Leroy2016-10-011-456/+0
| | | | | | | | | | The PowerPC port remains 32-bit only, no support is added for PPC 64. This shows how much work is needed to update an existing port a minima.
| * Support for 64-bit architectures: generic supportXavier Leroy2016-10-013-4/+463
| | | | | | | | | | | | | | | | | | | | | | - Introduce Archi.ptr64 parameter. - Define module Ptrofs of integers as wide as a pointer (64 if Archi.ptr64, 32 otherwise). - Use Ptrofs.int as the offset type for Vptr values and anywhere pointer offsets are manipulated. - Modify Val operations that handle pointers (e.g. Val.add, Val.sub, Val.cmpu) so that in 64-bit pointer mode it is the "long" operation (e.g. Val.addl, Val.subl, Val.cmplu) that handles pointers. - Update the memory model accordingly. - Modify C operations that handle pointers (e.g. addition, subtraction, comparisons) accordingly. - Make it possible to turn off the splitting of 64-bit integers into pairs of 32-bit integers. - Update the compiler front-end and back-end accordingly.
* | Document -target and -conf. Bug 20210Bernhard Schommer2016-10-181-0/+2
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* | Refactored debugging options.Bernhard Schommer2016-10-142-29/+6
| | | | | | | | | | | | | | The options controlling the generation of debugging information are now moved into the Debug module. Futhermore the -gdepth options are replaced in favor of a more gcc compatible version. Bug 20193
* | Remove undocumented option. Bug 20193Bernhard Schommer2016-10-143-8/+2
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* | Fix minor typoMichael Schmidt2016-10-121-1/+1
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* | Fixed regression in printing of floats.Bernhard Schommer2016-10-041-1/+1
|/ | | | | Commit 60402c5 breaks printing of default floats by adding support for %lf. This commit adds back support for %f.
* Allow %lf type specifier in printf.Bernhard Schommer2016-09-221-1/+1
| | | | | %lf is official part of the C99 standard. Bug 19877
* Ignore also ignores the argunment. Bug 18004Bernhard Schommer2016-09-202-2/+7
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* Merge pull request #139 from AbsInt/advanced-diagnosticsBernhard Schommer2016-09-203-31/+40
|\ | | | | Advanced diagnostics
| * Merge branch 'master' into advanced-diagnosticsBernhard Schommer2016-08-297-20/+93
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| * | Additional test for color output.Bernhard Schommer2016-08-053-26/+33
| | | | | | | | | | | | | | | | | | Color output is only enabled if stderr is a tty, and the environment variable TERM is not empty or dumb. Bug 18004
| * | Classified all warnings and added various options.Bernhard Schommer2016-07-291-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now each warning either has a name and can be turned on/off, made into an error,etc. or is a warning that always will be triggered. The message of the warnings are similar to the ones emited by gcc/clang and all fit into one line. Furthermore the diagnostics are now colored if colored output is available. Bug 18004
* | | Added option to specify sdump folder. Fix 19816.Bernhard Schommer2016-09-161-2/+7
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* | Merge pull request #118 from AbsInt/armebXavier Leroy2016-08-243-1/+11
|\ \ | | | | | | Support for ARM Big Endian
| * \ fix merge conflictsMichael Schmidt2016-08-177-10/+61
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| * | | Implement support for big endian arm targets.Bernhard Schommer2016-08-053-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds support for the big endian arm targets by making the target endianess flag configurable, adding support for the big endian calling conventions, rewriting memory access patterns and adding big endian versions of the runtime functions. Bug 19418
* | | | Print whole command line.Bernhard Schommer2016-08-221-8/+8
| |/ / |/| | | | | | | | | | | | | | | | | When response files are used CompCert should still print all command line arguments since the response file is deleted after usage. Bug 19297.
* | | Merge pull request #107 from AbsInt/add-fileXavier Leroy2016-08-176-8/+57
|\ \ \ | | | | | | | | Add support for response files
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