summaryrefslogtreecommitdiffstats
path: root/clang/lib/Driver
Commit message (Collapse)AuthorAgeFilesLines
* OpenBSD/arm has switched to float ABI SoftFP.Brad Smith2018-07-221-1/+1
| | | | llvm-svn: 337660
* [Driver] Sanitizer support based on runtime library presenceGeorge Karpenkov2018-07-202-23/+65
| | | | | | | | | | | | | | | The runtime libraries of sanitizers are built in compiler-rt, and Clang can be built without compiler-rt, or compiler-rt can be configured to only build certain sanitizers. The driver should provide reasonable diagnostics and not a link-time error when a runtime library is missing. This patch changes the driver for OS X to only support sanitizers of which we can find the runtime libraries. The discussion for this patch explains the rationale Differential Revision: https://reviews.llvm.org/D15225 llvm-svn: 337635
* AMDGPU: Switch default dwarf version to 2Konstantin Zhuravlyov2018-07-201-1/+1
| | | | | | | | | There were some problems unearthed with version 5, which I am going to look at. Differential Revision: https://reviews.llvm.org/D49613 llvm-svn: 337612
* Change \t to spacesFangrui Song2018-07-203-3/+3
| | | | llvm-svn: 337530
* [clang]: Add support for "-fno-delete-null-pointer-checks"Manoj Gupta2018-07-191-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Support for this option is needed for building Linux kernel. This is a very frequently requested feature by kernel developers. More details : https://lkml.org/lkml/2018/4/4/601 GCC option description for -fdelete-null-pointer-checks: This Assume that programs cannot safely dereference null pointers, and that no code or data element resides at address zero. -fno-delete-null-pointer-checks is the inverse of this implying that null pointer dereferencing is not undefined. This feature is implemented in as the function attribute "null-pointer-is-valid"="true". This CL only adds the attribute on the function. It also strips "nonnull" attributes from function arguments but keeps the related warnings unchanged. Corresponding LLVM change rL336613 already updated the optimizations to not treat null pointer dereferencing as undefined if the attribute is present. Reviewers: t.p.northover, efriedma, jyknight, chandlerc, rnk, srhines, void, george.burgess.iv Reviewed By: jyknight Subscribers: drinkcat, xbolva00, cfe-commits Differential Revision: https://reviews.llvm.org/D47894 llvm-svn: 337433
* Re-land r337333, "Teach Clang to emit address-significance tables.",Peter Collingbourne2018-07-181-0/+5
| | | | | | | | | | | | | | | | | | | | | which was reverted in r337336. The problem that required a revert was fixed in r337338. Also added a missing "REQUIRES: x86-registered-target" to one of the tests. Original commit message: > Teach Clang to emit address-significance tables. > > By default, we emit an address-significance table on all ELF > targets when the integrated assembler is enabled. The emission of an > address-significance table can be controlled with the -faddrsig and > -fno-addrsig flags. > > Differential Revision: https://reviews.llvm.org/D48155 llvm-svn: 337339
* Revert r337333, "Teach Clang to emit address-significance tables."Peter Collingbourne2018-07-171-5/+0
| | | | | | | | | Causing multiple failures on sanitizer bots due to TLS symbol errors, e.g. /usr/bin/ld: __msan_origin_tls: TLS definition in /home/buildbots/ppc64be-clang-test/clang-ppc64be/stage1/lib/clang/7.0.0/lib/linux/libclang_rt.msan-powerpc64.a(msan.cc.o) section .tbss.__msan_origin_tls mismatches non-TLS reference in /tmp/lit_tmp_0a71tA/mallinfo-3ca75e.o llvm-svn: 337336
* Teach Clang to emit address-significance tables.Peter Collingbourne2018-07-171-0/+5
| | | | | | | | | | | By default, we emit an address-significance table on all ELF targets when the integrated assembler is enabled. The emission of an address-significance table can be controlled with the -faddrsig and -fno-addrsig flags. Differential Revision: https://reviews.llvm.org/D48155 llvm-svn: 337333
* clang-cl: Postpone Wmsvc-not-found emission until link.exe gets used.Nico Weber2018-07-172-2/+5
| | | | | | | | | | | | | | | | | Wmsvc-not-found was added in r297851 to help diagnose why link.exe can't be executed. However, it's emitted even when using -fuse-ld=lld, and in cross builds there's no way to get rid of the warning other than disabling it. Instead, emit it when we look up link.exe and it ends up not being executable. That way, when passing -fuse-ld=lld it will never be printed. It will also not be printed if we find link.exe on PATH. (We might want to eventually default to lld one day, at least when running on a non-Win host, but that's for another day.) Fixes PR38016. llvm-svn: 337290
* For NetBSD, unwind data is emitted by default, so also enable frameJoerg Sonnenberger2018-07-171-0/+4
| | | | | | pointer optimisation by default when using optimisation. llvm-svn: 337274
* [Driver] Add -fno-digraphsJacob Bandes-Storch2018-07-171-0/+1
| | | | | | | | | | | | | | Summary: Add a flag `-fno-digraphs` to disable digraphs in the lexer, similar to `-fno-operator-names` which disables alternative names for C++ operators. Reviewers: rsmith Reviewed By: rsmith Subscribers: rsmith, cfe-commits Differential Revision: https://reviews.llvm.org/D48266 llvm-svn: 337232
* Support linking static PIE binaries on NetBSDJoerg Sonnenberger2018-07-121-0/+4
| | | | llvm-svn: 336947
* [mips] Add '-mvirt', '-mno-virt', '-mginv', '-mno-ginv' optionsVladimir Stefanovic2018-07-111-0/+4
| | | | | | | | | '-mvirt'/'-mno-virt' enables/disables Virtualization ASE. '-mginv'/'-mno-ginv' enables/disables GINV (Global Invalidate) ASE. Differential revision: https://reviews.llvm.org/D48982 llvm-svn: 336798
* Fix a typo/regression in r335495.John Baldwin2018-07-101-1/+1
| | | | | | | | | | | Use getTriple.isMIPS64() to detect 64-bit MIPS ABIs in FreeBSD::getSupportedSanitizers() instead of getTriple.isMIPS32(). Reviewed By: atanasyan Differential Revision: https://reviews.llvm.org/D49143 llvm-svn: 336710
* Support -fdebug-prefix-map for assembler source (pass to cc1as). ThisPaul Robinson2018-07-101-8/+15
| | | | | | | | | | | is useful to omit the debug compilation dir when compiling assembly files with -g. Part of PR38050. Patch by Siddhartha Bagaria! Differential Revision: https://reviews.llvm.org/D48989 llvm-svn: 336685
* [MinGW] Skip adding default win32 api libraries if -lwindowsapp is specifiedMartin Storsjo2018-07-101-8/+20
| | | | | | | | | | | | | | | | | In this setup, skip adding all the default windows import libraries, if linking to windowsapp (which replaces them, when targeting the windows store/UWP api subset). With GCC, the same is achieved by using a custom spec file, but since clang doesn't use spec files, we have to allow other means of overriding what default libraries to use (without going all the way to using -nostdlib, which would exclude everything). The same approach, in detecting certain user specified libraries and omitting others from the defaults, was already used in SVN r314138. Differential Revision: https://reviews.llvm.org/D49059 llvm-svn: 336655
* [MinGW] Treat any -lucrt* as replacing -lmsvcrtMartin Storsjo2018-07-101-1/+1
| | | | | | | | | | | | | | Since SVN r314138, we check if the user has specified any particular alternative msvcrt/ucrt version, and skip the default -lmsvcrt in those cases. In addition to the existing names checked, we should also treat a plain -lucrt in the same way, mingw-w64 has now added a separate import library named libucrt.a, in addition to libucrtbase.a. Differential Revision: https://reviews.llvm.org/D49054 llvm-svn: 336654
* Added -fcrash-diagnostics-dir flagBob Haarman2018-07-091-5/+20
| | | | | | | | | | | | | | | | | | Summary: New flag causes crash reports to be written in the specified directory rather than the temp directory. Patch by Chijioke Kamanu. Reviewers: hans, inglorion, rnk Reviewed By: hans Subscribers: zturner, hiraditya, llvm-commits, cfe-commits Differential Revision: https://reviews.llvm.org/D48601 llvm-svn: 336604
* [MachineOutliner] Properly pass -moutline along to the toolchainJessica Paquette2018-07-062-9/+13
| | | | | | | | | | This moves the LTO-specific code for outlining from ToolChains/Clang.cpp to ToolChains/Darwin.cpp. Passing -mllvm flags isn't sufficient for making sure that the specified pass will actually run in LTO. This makes sure that when -moutline is passed, the MachineOutliner will actually be added to the LTO pass pipeline as expected. llvm-svn: 336471
* [OPENMP] Fix PR38026: Link -latomic when -fopenmp is used.Alexey Bataev2018-07-061-1/+5
| | | | | | | On Linux atomic constructs in OpenMP require libatomic library. Patch links libatomic when -fopenmp is used. llvm-svn: 336467
* [Driver,AArch64] Add support for -mcpu=native.Florian Hahn2018-07-061-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | This patches adds support for passing -mcpu=native for AArch64. It will get turned into the host CPU name, before we get the target features. CPU = native is handled in a similar fashion in getAArch64MicroArchFetauresFromMtune and getAArch64TargetCPU already. Having a good test case for this is hard, as it depends on the host CPU of the machine running the test. But we can check that native has been replaced with something else. When cross-compiling, we will get a CPU name from the host architecture and get ` the clang compiler does not support '-mcpu=native'` as error message, which seems reasonable to me. Reviewers: rengolin, peter.smith, dlj, javed.absar, t.p.northover Reviewed By: peter.smith Tags: #clang Differential Revision: https://reviews.llvm.org/D48931 llvm-svn: 336429
* [clang-cl, PCH] Implement support for MS-style PCH through headersErich Keane2018-07-052-83/+19
| | | | | | | | | | | | | | | | | | | | | Implement support for MS-style PCH through headers. This enables support for /Yc and /Yu where the through header is either on the command line or included in the source. It replaces the current support the requires the header also be specified with /FI. This change adds a -cc1 option -pch-through-header that is used to either start or stop compilation during PCH create or use. When creating a PCH, the compilation ends after compilation of the through header. When using a PCH, tokens are skipped until after the through header is seen. Patch By: mikerice Differential Revision: https://reviews.llvm.org/D46652 llvm-svn: 336379
* [mips] Add '-mcrc', '-mno-crc' options to enable/disable CRC ASEVladimir Stefanovic2018-07-051-0/+2
| | | | | | | | | '-mcrc' is shared with ARM. '-mno-crc' is Mips-only (ARM uses '-mnocrc'). Differential revision: https://reviews.llvm.org/D48169 llvm-svn: 336347
* Fix crash in clang.Zachary Turner2018-07-031-1/+3
| | | | | | | | | | This happened during a recent refactor. toStringRefArray() returns a vector<StringRef>, which was being implicitly converted to an ArrayRef<StringRef>, and then the vector was immediately being destroyed, so the ArrayRef<> was losing its backing storage. Fix this by making sure the vector gets permanent storage. llvm-svn: 336219
* [Driver] Add PPC64 as supported for ScudoKostya Kortchinsky2018-07-031-1/+2
| | | | | | | | | | | | | | | | | | Summary: Scudo works on PPC64 as is, so mark the architecture as supported for it. This will also require a change to config-ix.cmake on the compiler-rt side. Update the tests accordingly. Reviewers: eugenis, alekseyshl Reviewed By: alekseyshl Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D48833 llvm-svn: 336202
* [Driver][Darwin] Use Host Triple to infer target os versionSteven Wu2018-07-031-1/+7
| | | | | | | | | | | | | | | | | | | | Summary: When clang required to infer target os version from --target option and the os version is not specified in targets, check the host triple. If the host and target are both macOS, use host triple to infer target os version. rdar://problem/41651999 Reviewers: arphaman, dexonsmith Reviewed By: arphaman Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D48849 llvm-svn: 336168
* Driver: Don't mix system tools with devtoolset tools on RHELTom Stellard2018-06-301-0/+9
| | | | | | | | | | | | | | | | | Summary: On RHEL, devtoolset provides a more up-to-date toolchain than the base install, and we want to make sure all the tools use are from the same toolchain. Reviewers: rsmith, bruno Reviewed By: bruno Subscribers: bruno, cfe-commits Differential Revision: https://reviews.llvm.org/D34848 llvm-svn: 336037
* Request init/fini array on FreeBSD 12 and laterDimitry Andric2018-06-291-0/+2
| | | | | | | | | | | | | | | | | | | | | | | Summary: It seems a bad idea to change the default in the middle of a release branch due to possible changes in global ctor / dtor ordering between .ctors and .init_array. With FreeBSD 11.0's release imminent lets change the default now for FreeBSD 12 (the current development stream) and later. FreeBSD rtld has supported .init_array / .fini_array for many years. As of Jan 1 2017 all supported FreeBSD releases and branches will have support. Reviewers: dim, brooks, arichardson Reviewed By: dim, brooks, arichardson Subscribers: bsdjhb, krytarowski, emaste, cfe-commits Differential Revision: https://reviews.llvm.org/D24867 llvm-svn: 336008
* [mips][ias] Enable IAS by default for OpenBSD / FreeBSD mips64/mips64el.Brad Smith2018-06-291-4/+6
| | | | | | | | Reviewers: atanasyan Differential Revision: https://reviews.llvm.org/D48515 llvm-svn: 336004
* [MachineOutliner] Make -mno-outline use -enable-machine-outliner=neverJessica Paquette2018-06-291-15/+22
| | | | | | | | This updates -mno-outline so that it passes -enable-machine-outliner=never instead of nothing. This puts it in sync with the behaviour in llc and other tools. llvm-svn: 336001
* [Fixed Point Arithmetic] Rename `-fsame-fbits` flagLeonard Chan2018-06-291-5/+0
| | | | | | | | | | | - Rename the `-fsame-fbits` flag to `-fpadding-on-unsigned-fixed-point` - Move the flag from a driver option to a cc1 option - Rename the `SameFBits` member in TargetInfo to `PaddingOnUnsignedFixedPoint` - Updated descriptions Differential Revision: https://reviews.llvm.org/D48727 llvm-svn: 335993
* DebugInfo: Add -gno-gnu-pubnames to allow disabling gnu-pubnames later in ↵David Blaikie2018-06-281-1/+2
| | | | | | the command line llvm-svn: 335938
* [Darwin] Remove _VPMergeHook from the auto-export listVedant Kumar2018-06-281-1/+0
| | | | | | | | | | | Remove _VPMergeHook from Darwin's automatically-exported symbol list for PGO. As of r328987 this symbol is no longer weak. An integration test in compiler-rt will follow. rdar://41470205 llvm-svn: 335890
* OpenBSD driver needs ld.lld in sanitizer contextDavid Carlier2018-06-281-1/+3
| | | | | | | | | | | | | Base GNU ld is pretty ancient and does not support --dynamic-list flag. For conveniency, we can it automatically when compile with ubsan sanitizer flag. Reviewers: dberris Reviewed by: dberris Differential Revision: https://reviews.llvm.org/D48574 llvm-svn: 335856
* Support for multiarch runtimes layoutPetr Hosek2018-06-283-24/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | This change adds a support for multiarch style runtimes layout, so in addition to the existing layout where runtimes get installed to: lib/clang/$version/lib/$os Clang now allows runtimes to be installed to: lib/clang/$version/$target/lib This also includes libc++, libc++abi and libunwind; today those are assumed to be in Clang library directory built for host, with the new layout it is possible to install libc++, libc++abi and libunwind into the runtime directory built for different targets. The use of new layout is enabled by setting the LLVM_ENABLE_RUNTIME_TARGET_DIR CMake variable and is supported by both projects and runtimes layouts. The runtimes CMake build has been further modified to use the new layout when building runtimes for multiple targets. Differential Revision: https://reviews.llvm.org/D45604 llvm-svn: 335809
* [HIP] Fix ordering of device-libs linkingAaron Enye Shi2018-06-271-1/+1
| | | | | | | | | | | | | | | Summary: HIP should link the bitcodes with caller functions before callee functions. Also added lit test to check the ordering of the linked bitcodes is matches. Reviewers: yaxunl, b-sumner Reviewed By: yaxunl, b-sumner Subscribers: cfe-commits, yaxunl, b-sumner, scchan Differential Revision: https://reviews.llvm.org/D48667 llvm-svn: 335774
* [HIP] Support flush denormals bitcodeAaron Enye Shi2018-06-271-1/+7
| | | | | | | | | | | | | | | Summary: Use oclc_daz_opt_on.amdgcn.bc bitcode when option fcuda-flush-denormal-to-zero is enabled, otherwise use oclc_daz_opt_off.amdgcn.bc bitcode. Added lit tests to verify that the correct bitcode is linked when -fcuda-flush-denormal-to-zero option is enabled or disabled. Reviewers: yaxunl, scchan, b-sumner Reviewed By: yaxunl, scchan, b-sumner Subscribers: cfe-commits, yaxunl Differential Revision: https://reviews.llvm.org/D48493 llvm-svn: 335765
* Fix warning about unhandled enumeration in switch.Zachary Turner2018-06-271-0/+2
| | | | llvm-svn: 335702
* [mips] Explicitly specify the linker emulation for MIPS on FreeBSD.John Baldwin2018-06-271-6/+29
| | | | | | | | | | | | | | FreeBSD's mips64 builds O32 binaries for /usr/lib32 by default and thus needs to be able to link O32 binaries which requires an explicit linker emulation. Go ahead and list all the linker emulation variants for MIPS so that any supported MIPS ABI binary can be linked by any linker supporting MIPS. Reviewed By: atanasyan Differential Revision: https://reviews.llvm.org/D48507 llvm-svn: 335691
* [MachineOutliner] Emit a warning when using -moutline on unsupported targetsJessica Paquette2018-06-261-13/+20
| | | | | | | | | | | | | | | | Instead of just saying "flag unused", we should tell the user that the outliner isn't (at least officially) supported for some given architecture. This adds a warning that will state something like The 'blah' architecture does not support -moutline; flag ignored when we call -moutline with the 'blah' architecture. Since the outliner is still mostly an AArch64 thing, any architecture other than AArch64 will emit this warning. llvm-svn: 335672
* [mips] Use more conservative default CPUs for MIPS on FreeBSD.John Baldwin2018-06-261-0/+7
| | | | | | | | | | | | FreeBSD defaults to mips3 for all MIPS ABIs with GCC as that is the minimum MIPS architecture FreeBSD supports. Use mips3 for MIPS64 and mips2 for MIPS32 to match. Reviewed By: atanasyan Differential Revision: https://reviews.llvm.org/D48499 llvm-svn: 335653
* [HIP] Remove hip/hc.amdgcn.bc from HIP ToolchainsAaron Enye Shi2018-06-261-2/+2
| | | | | | | | | | | | | | | Summary: The hc.amdgcn.bc and hip.amdgcn.bc are removed in VDI build and no longer needed. Reviewers: yaxunl Reviewed By: yaxunl Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D48455 llvm-svn: 335634
* [Test] Initial test commit accessAaron Enye Shi2018-06-261-1/+1
| | | | llvm-svn: 335630
* [Driver] Do not add -lpthread & -lrt with -static-libsan on AndroidKostya Kortchinsky2018-06-261-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: I am not sure anyone has tried to compile an application with sanitizers on Android with `-static-libsan`, and a recent NDK, but it fails with: ``` .../i686-linux-android/bin/ld.gold: error: cannot find -lpthread .../i686-linux-android/bin/ld.gold: error: cannot find -lrt ``` My understanding is that both are included in Bionic and as such are not needed, and actually error out. So remove the addition of those two in `linkSanitizerRuntimeDeps` when dealing with Android, and update the tests. I am unfamiliar with the evolution of the NDK and I am not sure if this has always been the case or if this is somewhat of a recent evolution. I'll let Android people chime in. Reviewers: eugenis, pirama, srhines Reviewed By: eugenis, srhines Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D48570 llvm-svn: 335620
* Implement CFI for indirect calls via a member function pointer.Peter Collingbourne2018-06-262-3/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Similarly to CFI on virtual and indirect calls, this implementation tries to use program type information to make the checks as precise as possible. The basic way that it works is as follows, where `C` is the name of the class being defined or the target of a call and the function type is assumed to be `void()`. For virtual calls: - Attach type metadata to the addresses of function pointers in vtables (not the functions themselves) of type `void (B::*)()` for each `B` that is a recursive dynamic base class of `C`, including `C` itself. This type metadata has an annotation that the type is for virtual calls (to distinguish it from the non-virtual case). - At the call site, check that the computed address of the function pointer in the vtable has type `void (C::*)()`. For non-virtual calls: - Attach type metadata to each non-virtual member function whose address can be taken with a member function pointer. The type of a function in class `C` of type `void()` is each of the types `void (B::*)()` where `B` is a most-base class of `C`. A most-base class of `C` is defined as a recursive base class of `C`, including `C` itself, that does not have any bases. - At the call site, check that the function pointer has one of the types `void (B::*)()` where `B` is a most-base class of `C`. Differential Revision: https://reviews.llvm.org/D47567 llvm-svn: 335569
* [MachineOutliner] NFC - simplify -moutline/-mno-outline logicJessica Paquette2018-06-251-12/+9
| | | | | | | It's a bit cleaner to use `hasFlag` instead of nested ifs. This just refactors the -moutline/-mno-outline logic to use that. llvm-svn: 335549
* Add an option to support debug fission on implicit ThinLTO.Yunlian Jiang2018-06-251-0/+6
| | | | | | | | | | | | | | | | Summary: This adds an option -gsplit-dwarf=<arg>. LLVM can create .dwo files in the given directory during the implicit ThinLTO link stage. Reviewers: tejohnson, dblaikie, pcc Reviewed By: pcc Subscribers: steven_wu, aprantl, JDevlieghere, yunlian, probinson, mehdi_amini, inglorion, cfe-commits Differential Revision: https://reviews.llvm.org/D44788 llvm-svn: 335546
* [MachineOutliner] Outline from linkonceodrs by default in LTO when -moutline ↵Jessica Paquette2018-06-251-0/+8
| | | | | | | | | | | | is passed Pass -enable-linkonceodr-outlining by default when LTO is enabled. The outliner shouldn't compete with any sort of linker deduplication on linkonceodr functions when LTO is enabled. Therefore, this behaviour should be the default. llvm-svn: 335504
* [MachineOutliner] Make last of -moutline/-mno-outline winJessica Paquette2018-06-251-4/+6
| | | | | | | | The expected behaviour of command-line flags to clang is to have the last of -m(whatever) and -mno-(whatever) win. The outliner didn't do that. This fixes that and updates the test. llvm-svn: 335503
* Use Triple::isMIPS() instead of enumerating all Triples. NFCAlexander Richardson2018-06-258-61/+27
| | | | | | | | Reviewed By: atanasyan Differential Revision: https://reviews.llvm.org/D48549 llvm-svn: 335495
OpenPOWER on IntegriCloud