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* Merge commit 1ce07cd614be from llvm git (by me):Dimitry Andric2020-08-221-16/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instantiate Error in Target::GetEntryPointAddress() only when necessary When Target::GetEntryPointAddress() calls exe_module->GetObjectFile()->GetEntryPointAddress(), and the returned entry_addr is valid, it can immediately be returned. However, just before that, an llvm::Error value has been setup, but in this case it is not consumed before returning, like is done further below in the function. In https://bugs.freebsd.org/248745 we got a bug report for this, where a very simple test case aborts and dumps core: * thread #1, name = 'testcase', stop reason = breakpoint 1.1 frame #0: 0x00000000002018d4 testcase`main(argc=1, argv=0x00007fffffffea18) at testcase.c:3:5 1 int main(int argc, char *argv[]) 2 { -> 3 return 0; 4 } (lldb) p argc Program aborted due to an unhandled Error: Error value was Success. (Note: Success values must still be checked prior to being destroyed). Thread 1 received signal SIGABRT, Aborted. thr_kill () at thr_kill.S:3 3 thr_kill.S: No such file or directory. (gdb) bt #0 thr_kill () at thr_kill.S:3 #1 0x00000008049a0004 in __raise (s=6) at /usr/src/lib/libc/gen/raise.c:52 #2 0x0000000804916229 in abort () at /usr/src/lib/libc/stdlib/abort.c:67 #3 0x000000000451b5f5 in fatalUncheckedError () at /usr/src/contrib/llvm-project/llvm/lib/Support/Error.cpp:112 #4 0x00000000019cf008 in GetEntryPointAddress () at /usr/src/contrib/llvm-project/llvm/include/llvm/Support/Error.h:267 #5 0x0000000001bccbd8 in ConstructorSetup () at /usr/src/contrib/llvm-project/lldb/source/Target/ThreadPlanCallFunction.cpp:67 #6 0x0000000001bcd2c0 in ThreadPlanCallFunction () at /usr/src/contrib/llvm-project/lldb/source/Target/ThreadPlanCallFunction.cpp:114 #7 0x00000000020076d4 in InferiorCallMmap () at /usr/src/contrib/llvm-project/lldb/source/Plugins/Process/Utility/InferiorCallPOSIX.cpp:97 #8 0x0000000001f4be33 in DoAllocateMemory () at /usr/src/contrib/llvm-project/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp:604 #9 0x0000000001fe51b9 in AllocatePage () at /usr/src/contrib/llvm-project/lldb/source/Target/Memory.cpp:347 #10 0x0000000001fe5385 in AllocateMemory () at /usr/src/contrib/llvm-project/lldb/source/Target/Memory.cpp:383 #11 0x0000000001974da2 in AllocateMemory () at /usr/src/contrib/llvm-project/lldb/source/Target/Process.cpp:2301 #12 CanJIT () at /usr/src/contrib/llvm-project/lldb/source/Target/Process.cpp:2331 #13 0x0000000001a1bf3d in Evaluate () at /usr/src/contrib/llvm-project/lldb/source/Expression/UserExpression.cpp:190 #14 0x00000000019ce7a2 in EvaluateExpression () at /usr/src/contrib/llvm-project/lldb/source/Target/Target.cpp:2372 #15 0x0000000001ad784c in EvaluateExpression () at /usr/src/contrib/llvm-project/lldb/source/Commands/CommandObjectExpression.cpp:414 #16 0x0000000001ad86ae in DoExecute () at /usr/src/contrib/llvm-project/lldb/source/Commands/CommandObjectExpression.cpp:646 #17 0x0000000001a5e3ed in Execute () at /usr/src/contrib/llvm-project/lldb/source/Interpreter/CommandObject.cpp:1003 #18 0x0000000001a6c4a3 in HandleCommand () at /usr/src/contrib/llvm-project/lldb/source/Interpreter/CommandInterpreter.cpp:1762 #19 0x0000000001a6f98c in IOHandlerInputComplete () at /usr/src/contrib/llvm-project/lldb/source/Interpreter/CommandInterpreter.cpp:2760 #20 0x0000000001a90b08 in Run () at /usr/src/contrib/llvm-project/lldb/source/Core/IOHandler.cpp:548 #21 0x00000000019a6c6a in ExecuteIOHandlers () at /usr/src/contrib/llvm-project/lldb/source/Core/Debugger.cpp:903 #22 0x0000000001a70337 in RunCommandInterpreter () at /usr/src/contrib/llvm-project/lldb/source/Interpreter/CommandInterpreter.cpp:2946 #23 0x0000000001d9d812 in RunCommandInterpreter () at /usr/src/contrib/llvm-project/lldb/source/API/SBDebugger.cpp:1169 #24 0x0000000001918be8 in MainLoop () at /usr/src/contrib/llvm-project/lldb/tools/driver/Driver.cpp:675 #25 0x000000000191a114 in main () at /usr/src/contrib/llvm-project/lldb/tools/driver/Driver.cpp:890 Fix the incorrect error catch by only instantiating an Error object if it is necessary. Reviewed By: JDevlieghere Differential Revision: https://reviews.llvm.org/D86355 This should fix lldb aborting as described in the scenario above. Reported by: dmgk PR: 248745 Notes: svn path=/head/; revision=364480
* Reapply r359582 (by emaste):Dimitry Andric2020-08-061-1/+1
| | | | | | | | | | | | | | lldb: use lua as the default script language In the FreeBSD base system we do not have Python support in lldb, but will have Lua support. Make Lua the default. This needs to be made into a configure-time option; that is being discussed upstream and will appear in a future lldb import. For now carry this change as a tiny patch to our copy of lldb. Notes: svn path=/projects/clang1100-import/; revision=363978
* Reapply r351662 (by emaste):Dimitry Andric2020-08-061-2/+2
| | | | | | | | | | | | | | | | lldb: shorten thread names to make logs easier to follow lldb prepends the thread name to log entries, and the existing thread name for the FreeBSD ProcessMonitor thread was longer than the kernel's supported thread name length, and so was truncated. This made logs hard to read, as the truncated thread name ran into the log message. Shorten "lldb.process.freebsd.operation" to just "freebsd.op" so that logs are more readable. (Upstreaming to lldb still to be done). Notes: svn path=/projects/clang1100-import/; revision=363971
* Reapply r332965 (by emaste):Dimitry Andric2020-08-061-1/+0
| | | | | | | | | | | | | lldb: remove assertion that target_arch is FreeBSD The target is not necessarily a FreeBSD binary - for example, it may be a Linux binary running under the linuxulator. Basic ptrace (live) debugging already worked in this case, except for the assertion. Sponsored by: Turing Robotic Industries Inc. Notes: svn path=/projects/clang1100-import/; revision=363967
* Reapply r327151 (partially):Dimitry Andric2020-08-068-1/+50
| | | | | | | | | | | | | | For our lldb customizations, instead of commenting out lines, use #ifdef LLDB_ENABLE_ALL / #endif preprocess directives instead, so our diffs against upstream only consist of added lines. (Note that upstream has largely reshuffled the way optional lldb plugins are handled, so we need a lot less of these #ifdefs. However, not all of them can be dropped, unless we re-import several sources that we have always skipped.) Notes: svn path=/projects/clang1100-import/; revision=363961
* Reapply r311164:Dimitry Andric2020-08-021-1/+1
| | | | | | | Fix printf format warning on i386. Notes: svn path=/projects/clang1100-import/; revision=363775
* Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmpDimitry Andric2020-07-311-10/+12
| | | | | | | release/11.x llvmorg-11-init-20933-g3c1fca803bc. Notes: svn path=/projects/clang1100-import/; revision=363743
* Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmpDimitry Andric2020-07-311078-32518/+25402
| | | | | | | | | | | | master 2e10b7a39b9, the last commit before the llvmorg-12-init tag, from which release/11.x was branched. Note that for now, I rolled back all our local changes to make merging easier, and I will reapply the still-relevant ones after updating to 11.0.0-rc1. Notes: svn path=/projects/clang1100-import/; revision=363742
* lldb: use lua as the default script languageEd Maste2020-04-021-1/+1
| | | | | | | | | | | | In the FreeBSD base system we do not have Python support in lldb, but will have Lua support. Make Lua the default. This needs to be made into a configure-time option; that is being discussed upstream and will appear in a future lldb import. For now carry this change as a tiny patch to our copy of lldb. Notes: svn path=/head/; revision=359582
* Merge ^/vendor/llvm-project/release-10.x up to its last change (upstreamDimitry Andric2020-03-052-3/+3
| | | | | | | commit llvmorg-10.0.0-rc3-1-gc290cb61fdc), and bump versions. Notes: svn path=/projects/clang1000-import/; revision=358682
* Merge ^/vendor/llvm-project/release-10.x up to its last change (upstreamDimitry Andric2020-02-271-5/+17
| | | | | | | commit llvmorg-10.0.0-rc2-70-ge5cb70267e7), and bump versions. Notes: svn path=/projects/clang1000-import/; revision=358399
* Merge ^/vendor/llvm-project/release-10.x up to its last change (upstreamDimitry Andric2020-02-156-138/+78
| | | | | | | | commit llvmorg-10.0.0-rc2-0-g90c78073f73), bump versions, and update build glue. Notes: svn path=/projects/clang1000-import/; revision=357964
* Update build glue for lldb (MK_LLDB=yes). Also update lldb's generatedDimitry Andric2020-01-272-1/+22
| | | | | | | | Config.h, disable a few more parts in the code we don't use, and add a pre-generated man page. Notes: svn path=/projects/clang1000-import/; revision=357174
* Merge ^/vendor/lvm-project/master up to its last change (upstream commitDimitry Andric2020-01-24361-16039/+14117
| | | | | | | e26a78e70), and resolve conflicts. Notes: svn path=/projects/clang1000-import/; revision=357095
* Merge ^/vendor/lldb/dist up to its last change, and resolve conflicts.Dimitry Andric2020-01-23500-23219/+23208
| | | | Notes: svn path=/projects/clang1000-import/; revision=357058
* Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmpDimitry Andric2019-12-224-8/+133
| | | | | | | | | | | | | | | | | | 9.0.1 final release c1a0a213378a458fbea1a5c77b315c7dce08fd05. Release notes for llvm, clang, lld and libc++ 9.0.1 will become available here: https://releases.llvm.org/9.0.1/docs/ReleaseNotes.html https://releases.llvm.org/9.0.1/tools/clang/docs/ReleaseNotes.html https://releases.llvm.org/9.0.1/tools/lld/docs/ReleaseNotes.html https://releases.llvm.org/9.0.1/projects/libcxx/docs/ReleaseNotes.html PR: 240629 MFC after: 1 month Notes: svn path=/head/; revision=356004
* Move all sources from the llvm project into contrib/llvm-project.Dimitry Andric2019-12-201060-0/+439537
This uses the new layout of the upstream repository, which was recently migrated to GitHub, and converted into a "monorepo". That is, most of the earlier separate sub-projects with their own branches and tags were consolidated into one top-level directory, and are now branched and tagged together. Updating the vendor area to match this layout is next. Notes: svn path=/head/; revision=355940
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