Hi Carlos, Thank your for looking into the LLDB failure. I looked into it briefly and the issue is that we have have 2 function f and g where g is inlined into f as the first call and this causes the first non-prologue line entry of f to be inside the address range of g what means that when we step info f from outside we will end up inside g instead. Previously the first line entry for f matched with the start address of the inlined copy of g where LLDB was able to handle the stepping properly.
For the concrete example you should compile https://github.com/llvm-mirror/lldb/blob/26fea9dbbeb3020791cdbc46fbf3cc9d7685d7fd/packages/Python/lldbsuite/test/functionalities/inline-stepping/calling.cpp with "/mnt/ssd/ll/git/build/host-release/bin/clang-5.0 -std=c++11 -g -O0 -fno-builtin -m32 --driver-mode=g++ calling.cpp" and then observe that caller_trivial_2 have a DW_AT_low_pc = 0x8048790 and the inlined inline_trivial_1 inside it have a DW_AT_low_pc = 0x8048793 but the first line entry after "Set prologue_end to true" is at 0x8048796 while previously it was at 0x8048793. Tamas On Thu, Sep 14, 2017 at 9:59 AM Carlos Alberto Enciso via lldb-dev < lldb-dev@lists.llvm.org> wrote: > Hi, > > I have been working on a compiler issue, where instructions associated to > the function prolog are assigned line information, causing the debugger to > show incorrectly the beginning of the function body. > > For a full description, please see: > > https://reviews.llvm.org/D37625 > https://reviews.llvm.org/rL313047 > > The submitted patch caused some LLDB tests to fail. I have attached the > log failure. > > I have no knowledge about the test framework used by LLDB. > > What is the best way to proceed in this case? > > Thanks very much for your feedback. > > Carlos Enciso > > > > _______________________________________________ > lldb-dev mailing list > lldb-dev@lists.llvm.org > http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev >
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