DebuggingAndTesting

Running/Debugging

1. Compile all test cases: make check
2. Run Valgrind from the .in-place directory in a MSys shell
   • running hello world 32 bit: VALGRIND_LIB=.in_place coregrind/valgrind.exe memcheck/tests/windows/hello-x86-windows.exe
   • running hello world 64 bit: VALGRIND_LIB=.in_place coregrind/valgrind.exe memcheck/tests/windows/hello-amd64-windows.exe
   • running a memcheck test: VALGRIND_LIB=.in_place coregrind/valgrind.exe memcheck/tests/badaddrvalue.exe
3. start Valgrind with --wait-for-gdb=yes switch to let the tool wait for a debugger to attach (both gdb or WinDbg can attach this way)
4. Debugging C code:
   • compile code with make OPTIMIZE=-O0
   • attach with gdb
5. Debugging Assembly code:
   • hardcode asm("int $3"); breakpoint(s) where desired
   • attach with WinDbg
   • control passes to WinDbg as soon as one of the hardcoded breakpoints is hit

Tools

1. tests/windows is the place for Windows-specific tools, compiling as 32 and 64 bit (or both) versions
   • currently there is only one tool: "strace", which can trace system calls and callbacks on the real CPU. Still work in progress:
   • no multi-threading
   • brute force syscall searching missing in 32 bit modes

Tests

1. to build all tests, run make check
2. memcheck/tests/windows is the place for Windows-specific memcheck tests, compiling as 32 and 64 bit (or both) versions
   • current tests:
   • hello - console hello world
   • hellowin - GUI hello world
   • threadtest - simple test if Valgrind can manage threads
3. Other tool tests (note that many but not all tests compile under Windows):
   • cachegrind/tests/*.exe (3 tests)
   • callgrind/tests/*.exe (2 tests)
   • exp-bbv/tests/x86/*.exe (4 tests)
   • exp-sgcheck/tests/*.exe (6 tests)
   • massif/tests/*.exe (19 tests)
   • memcheck/tests/*.exe (90 tests)
   • memcheck/tests/amd64/*.exe (6 tests)
   • memcheck/tests/x86/*.exe (8 tests)
   • none/tests/*.exe (27 tests)
   • none/tests/amd64/*.exe (25 tests)
   • none/tests/x86/*.exe (19 tests)
   • perf/*.exe (8 tests)