Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

3 files changed, 276 insertions, 0 deletions

diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/lang/objc/exceptions/Makefile b/gnu/llvm/lldb/packages/Python/lldbsuite/test/lang/objc/exceptions/Makefile
new file mode 100644
index 00000000000..876340159d9
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/lang/objc/exceptions/Makefile
@@ -0,0 +1,8 @@
+OBJCXX_SOURCES := main.mm
+
+CFLAGS_EXTRAS := -w
+
+
+
+LD_EXTRAS := -framework Foundation
+include Makefile.rules
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/lang/objc/exceptions/TestObjCExceptions.py b/gnu/llvm/lldb/packages/Python/lldbsuite/test/lang/objc/exceptions/TestObjCExceptions.py
new file mode 100644
index 00000000000..ce9ee8e027f
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/lang/objc/exceptions/TestObjCExceptions.py
@@ -0,0 +1,206 @@
+# encoding: utf-8
+"""
+Test lldb Obj-C exception support.
+"""
+
+
+
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+class ObjCExceptionsTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @skipUnlessDarwin
+    def test_objc_exceptions_at_throw(self):
+        self.build()
+
+        target = self.dbg.CreateTarget(self.getBuildArtifact("a.out"))
+        self.assertTrue(target, VALID_TARGET)
+
+        launch_info = lldb.SBLaunchInfo(["a.out", "0"])
+        lldbutil.run_to_name_breakpoint(self, "objc_exception_throw", launch_info=launch_info)
+
+        self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
+                    substrs=['stopped', 'stop reason = breakpoint'])
+
+        self.expect('thread exception', substrs=[
+                '(NSException *) exception = ',
+                '"SomeReason"',
+            ])
+
+        target = self.dbg.GetSelectedTarget()
+        thread = target.GetProcess().GetSelectedThread()
+        frame = thread.GetSelectedFrame()
+
+        opts = lldb.SBVariablesOptions()
+        opts.SetIncludeRecognizedArguments(True)
+        variables = frame.GetVariables(opts)
+
+        self.assertEqual(variables.GetSize(), 1)
+        self.assertEqual(variables.GetValueAtIndex(0).name, "exception")
+        self.assertEqual(variables.GetValueAtIndex(0).GetValueType(), lldb.eValueTypeVariableArgument)
+
+        lldbutil.run_to_source_breakpoint(self, "// Set break point at this line.", lldb.SBFileSpec("main.mm"), launch_info=launch_info)
+
+        self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
+                    substrs=['stopped', 'stop reason = breakpoint'])
+
+        target = self.dbg.GetSelectedTarget()
+        thread = target.GetProcess().GetSelectedThread()
+        frame = thread.GetSelectedFrame()
+
+        # No exception being currently thrown/caught at this point
+        self.assertFalse(thread.GetCurrentException().IsValid())
+        self.assertFalse(thread.GetCurrentExceptionBacktrace().IsValid())
+
+        self.expect(
+            'frame variable e1',
+            substrs=[
+                '(NSException *) e1 = ',
+                '"SomeReason"'
+            ])
+
+        self.expect(
+            'frame variable --dynamic-type no-run-target *e1',
+            substrs=[
+                '(NSException) *e1 = ',
+                'name = ', '"ExceptionName"',
+                'reason = ', '"SomeReason"',
+                'userInfo = ', '1 key/value pair',
+                'reserved = ', 'nil',
+            ])
+
+        e1 = frame.FindVariable("e1")
+        self.assertTrue(e1)
+        self.assertEqual(e1.type.name, "NSException *")
+        self.assertEqual(e1.GetSummary(), '"SomeReason"')
+        self.assertEqual(e1.GetChildMemberWithName("name").description, "ExceptionName")
+        self.assertEqual(e1.GetChildMemberWithName("reason").description, "SomeReason")
+        userInfo = e1.GetChildMemberWithName("userInfo").dynamic
+        self.assertEqual(userInfo.summary, "1 key/value pair")
+        self.assertEqual(userInfo.GetChildAtIndex(0).GetChildAtIndex(0).description, "some_key")
+        self.assertEqual(userInfo.GetChildAtIndex(0).GetChildAtIndex(1).description, "some_value")
+        self.assertEqual(e1.GetChildMemberWithName("reserved").description, "<nil>")
+
+        self.expect(
+            'frame variable e2',
+            substrs=[
+                '(NSException *) e2 = ',
+                '"SomeReason"'
+            ])
+
+        self.expect(
+            'frame variable --dynamic-type no-run-target *e2',
+            substrs=[
+                '(NSException) *e2 = ',
+                'name = ', '"ThrownException"',
+                'reason = ', '"SomeReason"',
+                'userInfo = ', '1 key/value pair',
+                'reserved = ',
+            ])
+
+        e2 = frame.FindVariable("e2")
+        self.assertTrue(e2)
+        self.assertEqual(e2.type.name, "NSException *")
+        self.assertEqual(e2.GetSummary(), '"SomeReason"')
+        self.assertEqual(e2.GetChildMemberWithName("name").description, "ThrownException")
+        self.assertEqual(e2.GetChildMemberWithName("reason").description, "SomeReason")
+        userInfo = e2.GetChildMemberWithName("userInfo").dynamic
+        self.assertEqual(userInfo.summary, "1 key/value pair")
+        self.assertEqual(userInfo.GetChildAtIndex(0).GetChildAtIndex(0).description, "some_key")
+        self.assertEqual(userInfo.GetChildAtIndex(0).GetChildAtIndex(1).description, "some_value")
+        reserved = e2.GetChildMemberWithName("reserved").dynamic
+        self.assertGreater(reserved.num_children, 0)
+        callStackReturnAddresses = [reserved.GetChildAtIndex(i).GetChildAtIndex(1) for i in range(0, reserved.GetNumChildren())
+                if reserved.GetChildAtIndex(i).GetChildAtIndex(0).description == "callStackReturnAddresses"][0].dynamic
+        children = [callStackReturnAddresses.GetChildAtIndex(i) for i in range(0, callStackReturnAddresses.num_children)]
+
+        pcs = [i.unsigned for i in children]
+        names = [target.ResolveSymbolContextForAddress(lldb.SBAddress(pc, target), lldb.eSymbolContextSymbol).GetSymbol().name for pc in pcs]
+        for n in ["objc_exception_throw", "foo(int)", "main"]:
+            self.assertTrue(n in names, "%s is in the exception backtrace (%s)" % (n, names))
+
+    @skipUnlessDarwin
+    def test_objc_exceptions_at_abort(self):
+        self.build()
+
+        target = self.dbg.CreateTarget(self.getBuildArtifact("a.out"))
+        self.assertTrue(target, VALID_TARGET)
+
+        self.runCmd("run 0")
+
+        # We should be stopped at pthread_kill because of an unhandled exception
+        self.expect("thread list",
+            substrs=['stopped', 'stop reason = signal SIGABRT'])
+
+        self.expect('thread exception', substrs=[
+                '(NSException *) exception = ',
+                '"SomeReason"',
+                'libobjc.A.dylib`objc_exception_throw',
+                'a.out`foo', 'at main.mm:24',
+                'a.out`rethrow', 'at main.mm:35',
+                'a.out`main',
+            ])
+
+        process = self.dbg.GetSelectedTarget().process
+        thread = process.GetSelectedThread()
+
+        # There is an exception being currently processed at this point
+        self.assertTrue(thread.GetCurrentException().IsValid())
+        self.assertTrue(thread.GetCurrentExceptionBacktrace().IsValid())
+
+        history_thread = thread.GetCurrentExceptionBacktrace()
+        self.assertGreaterEqual(history_thread.num_frames, 4)
+        for n in ["objc_exception_throw", "foo(int)", "rethrow(int)", "main"]:
+            self.assertEqual(len([f for f in history_thread.frames if f.GetFunctionName() == n]), 1)
+
+        self.runCmd("kill")
+
+        self.runCmd("run 1")
+        # We should be stopped at pthread_kill because of an unhandled exception
+        self.expect("thread list",
+            substrs=['stopped', 'stop reason = signal SIGABRT'])
+
+        self.expect('thread exception', substrs=[
+                '(MyCustomException *) exception = ',
+                'libobjc.A.dylib`objc_exception_throw',
+                'a.out`foo', 'at main.mm:26',
+                'a.out`rethrow', 'at main.mm:35',
+                'a.out`main',
+            ])
+
+        process = self.dbg.GetSelectedTarget().process
+        thread = process.GetSelectedThread()
+
+        history_thread = thread.GetCurrentExceptionBacktrace()
+        self.assertGreaterEqual(history_thread.num_frames, 4)
+        for n in ["objc_exception_throw", "foo(int)", "rethrow(int)", "main"]:
+            self.assertEqual(len([f for f in history_thread.frames if f.GetFunctionName() == n]), 1)
+
+    @skipUnlessDarwin
+    def test_cxx_exceptions_at_abort(self):
+        self.build()
+
+        target = self.dbg.CreateTarget(self.getBuildArtifact("a.out"))
+        self.assertTrue(target, VALID_TARGET)
+
+        self.runCmd("run 2")
+
+        # We should be stopped at pthread_kill because of an unhandled exception
+        self.expect("thread list",
+            substrs=['stopped', 'stop reason = signal SIGABRT'])
+
+        self.expect('thread exception', substrs=['exception ='])
+
+        process = self.dbg.GetSelectedTarget().process
+        thread = process.GetSelectedThread()
+
+        self.assertTrue(thread.GetCurrentException().IsValid())
+
+        # C++ exception backtraces are not exposed in the API (yet).
+        self.assertFalse(thread.GetCurrentExceptionBacktrace().IsValid())
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/lang/objc/exceptions/main.mm b/gnu/llvm/lldb/packages/Python/lldbsuite/test/lang/objc/exceptions/main.mm
new file mode 100644
index 00000000000..b5c71f9fcf9
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/lang/objc/exceptions/main.mm
@@ -0,0 +1,62 @@
+//===-- main.m ------------------------------------------------*- ObjC -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#import <Foundation/Foundation.h>
+
+#import <exception>
+#import <stdexcept>
+
+@interface MyCustomException: NSException
+@end
+@implementation MyCustomException
+@end
+
+void foo(int n)
+{
+    NSDictionary *info = [NSDictionary dictionaryWithObjectsAndKeys:@"some_value", @"some_key", nil];
+    switch (n) {
+        case 0:
+            @throw [[NSException alloc] initWithName:@"ThrownException" reason:@"SomeReason" userInfo:info];
+        case 1:
+            @throw [[MyCustomException alloc] initWithName:@"ThrownException" reason:@"SomeReason" userInfo:info];
+        case 2:
+            throw std::runtime_error("C++ exception");
+    }
+}
+
+void rethrow(int n)
+{
+    @try {
+        foo(n);
+    } @catch(NSException *e) {
+        @throw;
+    }
+}
+
+int main(int argc, const char * argv[])
+{
+    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+
+    NSDictionary *info = [NSDictionary dictionaryWithObjectsAndKeys:@"some_value", @"some_key", nil];
+    NSException *e1 = [[NSException alloc] initWithName:@"ExceptionName" reason:@"SomeReason" userInfo:info];
+    NSException *e2;
+
+    @try {
+        foo(atoi(argv[1]));
+    } @catch(NSException *e) {
+        e2 = e;
+    }
+
+    NSLog(@"1"); // Set break point at this line.
+
+    rethrow(atoi(argv[1]));
+
+    [pool drain];
+    return 0;
+}
+