739fe98080
On Windows this test was failing to link with following error: ``` make: Entering directory 'C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/lldb-test-build.noindex/commands/expression/expr-from-non-zero-frame/TestExprFromNonZeroFrame.test' C:\Users\tcwg\llvm-worker\lldb-aarch64-windows\build\bin\clang.exe -gdwarf -O0 -IC:\Users\tcwg\llvm-worker\lldb-aarch64-windows\llvm-project\lldb\packages\Python\lldbsuite\test\make/../../../../..//include -IC:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/tools/lldb/include -IC:\Users\tcwg\llvm-worker\lldb-aarch64-windows\llvm-project\lldb\test\API\commands\expression\expr-from-non-zero-frame -IC:\Users\tcwg\llvm-worker\lldb-aarch64-windows\llvm-project\lldb\packages\Python\lldbsuite\test\make -include C:\Users\tcwg\llvm-worker\lldb-aarch64-windows\llvm-project\lldb\packages\Python\lldbsuite\test\make/test_common.h -fno-limit-debug-info -MT main.o -MD -MP -MF main.d -c -o main.o C:\Users\tcwg\llvm-worker\lldb-aarch64-windows\llvm-project\lldb\test\API\commands\expression\expr-from-non-zero-frame/main.c C:\Users\tcwg\llvm-worker\lldb-aarch64-windows\build\bin\clang.exe main.o -gdwarf -O0 -IC:\Users\tcwg\llvm-worker\lldb-aarch64-windows\llvm-project\lldb\packages\Python\lldbsuite\test\make/../../../../..//include -IC:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/tools/lldb/include -IC:\Users\tcwg\llvm-worker\lldb-aarch64-windows\llvm-project\lldb\test\API\commands\expression\expr-from-non-zero-frame -IC:\Users\tcwg\llvm-worker\lldb-aarch64-windows\llvm-project\lldb\packages\Python\lldbsuite\test\make -include C:\Users\tcwg\llvm-worker\lldb-aarch64-windows\llvm-project\lldb\packages\Python\lldbsuite\test\make/test_common.h -fno-limit-debug-info -fuse-ld=lld --driver-mode=g++ -o "a.out" lld-link: error: undefined symbol: printf >>> referenced by main.o:(func) clang: error: linker command failed with exit code 1 (use -v to see invocation) make: *** [Makefile.rules:530: a.out] Error 1 make: Leaving directory 'C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/lldb-test-build.noindex/commands/expression/expr-from-non-zero-frame/TestExprFromNonZeroFrame.test' ```
31 lines
1.1 KiB
Python
31 lines
1.1 KiB
Python
import lldb
|
|
from lldbsuite.test.decorators import *
|
|
from lldbsuite.test.lldbtest import *
|
|
from lldbsuite.test import lldbutil
|
|
|
|
|
|
class ExprFromNonZeroFrame(TestBase):
|
|
NO_DEBUG_INFO_TESTCASE = True
|
|
|
|
def test(self):
|
|
"""
|
|
Tests that we can use SBFrame::EvaluateExpression on a frame
|
|
that we're not stopped in, even if thread-plans run as part of
|
|
parsing the expression (e.g., when running static initializers).
|
|
"""
|
|
self.build()
|
|
|
|
(_, _, thread, _) = lldbutil.run_to_source_breakpoint(
|
|
self, "return 5", lldb.SBFileSpec("main.c")
|
|
)
|
|
frame = thread.GetFrameAtIndex(1)
|
|
|
|
# Using a function pointer inside the expression ensures we
|
|
# emit a ptrauth static initializer on arm64e into the JITted
|
|
# expression. The thread-plan that runs for this static
|
|
# initializer should save/restore the current execution context
|
|
# frame (which in this test is frame #1).
|
|
result = frame.EvaluateExpression("int (*fptr)() = &func; fptr()")
|
|
self.assertTrue(result.GetError().Success())
|
|
self.assertEqual(result.GetValueAsSigned(), 5)
|