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* Provide a float select operation for PowerPC. (#173)Bernhard Schommer2019-05-281-0/+1
| | | | | | The FP select for PowerPC stores both addresses in two subsequent stack slots and loads them using an offset created from the result of the comparison.
* Added options -fcommon and -fno-common (#164)Bernhard Schommer2019-05-101-5/+14
| | | | | | | | | | The option -fcommon controls whether uninitialized global variables are placed in the COMMON section. If the option is given in the negated form, -fno-common, variables are not placed in the COMMON section. They are placed in the same sections as gcc does. If the variables are not placed in the COMMON section merging of tentative definitions is inhibited and multiple definitions lead to a linker error, as it does for gcc.
* Improved diagnostics: spelling, wording, etc (#138)Michael Schmidt2018-09-141-1/+1
| | | | | | | | | | | | | | | | | | * bug 24268: avoid assertion after reporting error for invalid call to builtin_debug * bug 24268, remove duplicated warning tag in lexer messages * bug 24268, fix spelling in array element designator message * bug 24268, unify 'consider adding option ...' messages * bug 24268, add spacing for icbi operands * bug 24268, uniform use of Ignored_attributes class for identical warnings * bug 24268, unify message for 'assignment to const type' to error from error/fatal error * bug 24268, in handcrafted.messages, "a xxx have been recognized" -> "a xxx has been recognized"
* Generate a nop instruction after some ais annotations (#137)Bernhard Schommer2018-09-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | * Generate a nop instruction after ais annotations. In order to prevent the merging of ais annotations with following Labels a nop instruction is inserted, but only if the annotation is followed immediately by a label. The insertion of nop instructions is performed during the expansion of builtin and pseudo assembler instructions and is processor independent, by inserting a __builtin_nop built-in. * Add Pnop instruction to ARM, RISC-V, and x86 ARM as well as RISC-V don't have nop instructions that can be easily encoded by for example add with zero instructions. For x86 we used to use `mov X0, X0` for nop but this may not be as efficient as the true nop instruction. * Implement __builtin_nop on all supported target architectures. This builtin is not yet made available on the C side for all architectures. Bug 24067
* Added Pldi to instr_size.Bernhard Schommer2018-08-011-0/+1
| | | | | | Since Pldi generates two instructions instr_size of Pldi should return 2. Bug 24218
* Add missing tab character, bug 23541Michael Schmidt2018-05-021-1/+1
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* Add new powerpc builtins.Michael Schmidt2018-04-271-0/+4
| | | | | | New builtin for 64-bit load/store with byte reversal and 64-bit mul-high. Bug 23541
* Reactivated and improved ais annotations.Bernhard Schommer2018-03-061-9/+10
| | | | | | | | | | | | | | | | | | The ais annotations are now handled in a separate file shared between all architectures. Also two different variants of replacements are supported, %e which expands to ais expressions and %l which also expands to an ais expression but is guaranted to be usable as l-value in the ais annotation. Otherwise the new warning is Wrong_is_parameter is generated. Also an error message is generated if floating point variables are used in ais annotations since a3 does not support them at the moment. Additionally an error message is generated for plain volatile variables used, since they will enforce a volatile load and result in the value being passed to the annotation instead of the address as other global variables.
* Remove no longer used function. Bug 22525Bernhard Schommer2017-11-101-2/+0
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* Removed no longer used function. Bug 22525Bernhard Schommer2017-11-091-30/+0
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* Fix jumptable issue.Bernhard Schommer2017-11-081-1/+1
| | | | | | Instead of using reset_constants use reset_literals which avoids emptying the jumptables. Bug 22525
* Simplifiy handling of constant emmitting.Bernhard Schommer2017-11-081-20/+14
| | | | | | Instead of just storing the constants in a list, they are now stored in a hashtable. This avoids printing of duplicates. Bug 22525
* Remove superfluous function.Bernhard Schommer2017-11-061-2/+0
| | | | | The new_label function is alway equal to PrintAsmaux.new_label. Bug 22472
* New support for inserting ais-annotations.Bernhard Schommer2017-10-191-5/+16
| | | | | | | | | | | | The ais annotations can be inserted via the new ais variants of the builtin annotation. They mainly differe in that they have an address format specifier '%addr' which will be replaced by the adress in the binary. The implementation simply prints a label for the builtin call alongside a the text of the annotation as comment and inserts the annotation together as acii string in a separate section 'ais_annotations' and replaces the usages of the address format specifiers by the address of the label of the builtin call.
* Print_annot should produce a string.Bernhard Schommer2017-07-191-5/+5
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* Hybrid 64bit/32bit PowerPC portBernhard Schommer2017-05-031-12/+126
| | | | | | | | | | | | | 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.
* Remove unused openBernhard Schommer2017-02-061-1/+0
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* Use 64 bit address in debug information.Bernhard Schommer2016-11-101-0/+7
| | | | | Address constants need to be 64bit also in the debug information. Bug 20335
* */TargetPrinter.ml: wrong comment attached to Init_float32 constantsXavier Leroy2016-04-091-1/+1
| | | | For informative purposes, the FP value of Init_float* constants is printed as a comment in the generated asm file. However, for Init_float32, it was wrongly printed as a double-precision FP instead of a single-precision FP.
* Cleanup of AsmToJSON.Bernhard Schommer2016-03-161-8/+8
| | | | | | Removed unused code, factored out common functions and added an interface file. Bug 18394
* Deactivate warning 27 and added back removed code.Bernhard Schommer2016-03-151-29/+29
| | | | | | The code was mostly there for documentation effort. So warning 27 is deactivated again. Bug 18349
* Code cleanup.Bernhard Schommer2016-03-101-37/+30
| | | | | | Removed some unused variables, functions etc. and resolved some problems which occur if all warnings except 3,4,9 and 29 are active. Bug 18394.
* bug 17752, fix tab-indentation in assembly outputMichael Schmidt2015-12-151-1/+1
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* Print cfi_sections only if cfi is supported.Bernhard Schommer2015-12-151-3/+3
| | | | | | 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.
* Bug 17752, add rldicr instruction for PowerPCMichael Schmidt2015-12-151-1/+4
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* Merge remote-tracking branch 'origin/master' into named-externalsBernhard Schommer2015-10-201-17/+38
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
| * Implemented the usage of DW_AT_ranges for non-contiguous address ranges.Bernhard Schommer2015-10-161-0/+2
| | | | | | | | | | | | | | | | | | | | 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.
| * First step to implemente address ranges for the gnu backend.Bernhard Schommer2015-10-151-8/+1
| | | | | | | | | | | | | | | | | | 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.
| * Reworked the section interface for the debug information.Bernhard Schommer2015-10-141-6/+7
| | | | | | | | | | | | Instead of pushing strings around use the actual section. However the string is still used in the Hashtbl. Bug 17392.
| * bug 17392: remove trailing whitespace in source filesMichael Schmidt2015-10-141-35/+35
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| * Changed the type of the debug sections with additional string.Bernhard Schommer2015-10-131-5/+11
| | | | | | | | | | | | | | | | Instead of using a string they now take an optional string, which should be none if the backend is not the diab backend and the corresponding section is the text section and Some s with s being the custom section name else. Bug 17392.
| * Implement the usage of the debug_str section for the gcc backend.Bernhard Schommer2015-10-131-1/+3
| | | | | | | | | | | | | | | | 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.
| * Merge branch 'master' into ppc64Xavier Leroy2015-10-111-84/+75
| |\ | | | | | | | | | Resolved conflicts in:configure powerpc/Asmexpand.ml
| * | Use PowerPC 64 bits instructions (when available) for int<->FP conversions.Xavier Leroy2015-09-131-0/+17
| | | | | | | | | | | | | | | | | | Also: implement __builtin_isel on non-EREF platforms with a branch-free instruction sequence. Also: extend ./configure so that it recognizes "ppc64-" and "e5500-" platforms in addition to "ppc-".
* | | Updated PR by removing whitespaces. Bug 17450.Bernhard Schommer2015-10-201-35/+35
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* | | Use Coq strings instead of idents to name external and builtin functions.Xavier Leroy2015-10-111-2/+2
| |/ |/| | | | | | | | | | | | | | | | | 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.
* | Fixed syntax error and added Section_debug_line to the Json serializer.Bernhard Schommer2015-10-091-1/+1
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* | Filled in the rest of the funciton needed for thte debug info under arm.Bernhard Schommer2015-10-091-4/+5
| | | | | | | | | | | | 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.
* | Ensure that there are file directives for all files used in the debugBernhard Schommer2015-10-041-1/+2
| | | | | | | | information.
* | Merge branch 'gnu-debug'Bernhard Schommer2015-10-021-7/+25
|\ \ | | | | | | | | | | | | Conflicts: debug/DebugInformation.ml
| * | First try of debug information for gcc.Bernhard Schommer2015-10-021-7/+25
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* | | Always call print debug_section in the prologue.Bernhard Schommer2015-10-021-18/+18
|/ / | | | | | | | | Since files without function definition contain no function in the Section_text the filenum would be empty otherwise.
* | Cleanup of now no longer needed functions.Bernhard Schommer2015-10-011-23/+0
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* | Change the way the debug sections are printed.Bernhard Schommer2015-09-281-66/+49
| | | | | | | | | | | | 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.
* | Added printing the reference address for the LocRef and started refactoring oldBernhard Schommer2015-09-271-12/+0
| | | | | | | | | | | | | | | | 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.
* | Added support for the locations of stack allocated local variables.Bernhard Schommer2015-09-251-1/+3
| | | | | | | | | | This commit adds furher support for location information for local variables and starts with the implementation of the debug_loc section.
* | Added support for printing local variables and fixed issue with .textBernhard Schommer2015-09-231-3/+6
| | | | | | | | | | | | Local variables are now added with bogus lexical scopes to reflect the actually lexical scopes. Also this commit fixes assembler problems of the das when a user section with the name ".text" is defined.
* | Record the scope structure during unblocking.Bernhard Schommer2015-09-221-0/+8
| | | | | | | | | | | | 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.
* | Merge branch 'debugscopes' into debug_locationsBernhard Schommer2015-09-211-1/+5
|\| | | | | | | | | | | Conflicts: debug/CtoDwarf.ml debug/DwarfPrinter.ml
| * Added builtin for isel.Bernhard Schommer2015-09-081-0/+2
| | | | | | | | | | The builtin_isel function takes a _Bool as first argument and returns either the second or the third depending on the value of the _Bool.
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