http://d.puremagic.com/issues/show_bug.cgi?id=4815
Summary: CodeView: Global and Static symbols should have
unmangled names
Product: D
Version: unspecified
Platform: Other
OS/Version: Windows
Status: NEW
Severity: normal
Priority: P2
Component: DMD
AssignedTo: nob...@puremagic.com
ReportedBy: aldonun...@gmail.com
--- Comment #0 from Aldo Nunez <aldonun...@gmail.com> 2010-09-05 00:35:07 PDT
---
Global and Static symbols should have their names stored fully qualified but
unmangled in the CodeView debug info. In contrast, Public symbols, because they
are meant to expose names to other object files, should have their mangled
linkage names stored, as they already are.
Right now Global and Static symbol names are stored mangled. This causes
problems when debugging. Storing them mangled defeats the ability of a debugger
to use the hash table made by the linker in order to look up variables the user
wants to evaluate and functions in a callstack. It also seems to offer no
meaningful service, because mangled names are more appropriate for linking than
debugging.
This affects at least the following kinds of symbol records in the sstGlobalSym
and sstStaticSym sections (not sstGlobalPub):
S_LDATA32
S_GDATA32
S_LPROC32
S_GPROC32
S_THUNK32
S_LTHREAD32
S_GTHREAD32
S_UDT (already OK)
The following article gives some explanation of the separation in treating name
mangling. It applies to PDB format, but it's believed that PDB derives from
CodeView, so I think the article applies equally to both.
http://msdn.microsoft.com/en-us/library/ff553493(VS.85).aspx
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