[lldb-dev] [Bug 22177] New: LLDB expression evaluator does not demangle C++ names on Windows

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=22177

            Bug ID: 22177
           Summary: LLDB expression evaluator does not demangle C++ names
                    on Windows
           Product: lldb
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at cs.uiuc.edu
          Reporter: ted.woodward at codeaurora.org
    Classification: Unclassified

Created attachment 13656
  --> http://llvm.org/bugs/attachment.cgi?id=13656&action=edit
testcase

Build the attached file. Note that I had to build it on Linux because clang on
Windows didn't produce a native executable with symbols that LLDB could read.

clang -g expr_test.cpp -o expr_test.elf

Run Windows LLDB on expr_test.elf, and run these commands:

p main
p foo
p _Z3fooi

With Windows LLDB I see:
(lldb) p main
(int (*)()) $0 = 0x00000000004004f0
(lldb) p foo
error: use of undeclared identifier 'foo'
error: 1 errors parsing expression
(lldb) p _Z3fooi
(int (*)(int)) $1 = 0x00000000004004d0

With Linux LLDB I see:
(lldb) p main
(int (*)()) $0 = 0x00000000004004f0
(lldb) p foo
(int (*)(int)) $1 = 0x00000000004004d0
(lldb) p _Z3fooi
(int (*)(int)) $2 = 0x00000000004004d0


Windows LLDB is not correctly demangling _Z3fooi and resolving that as foo.

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