Ken Thomases : dbghelp: Ignore Mach-O segments other than __TEXT for images in dyld' s shared cache.

Alexandre Julliard julliard at
Wed Aug 5 10:28:03 CDT 2015

Module: wine
Branch: master
Commit: 49f0bf6f0ba3163028afb2a5910ef4d709abe26a

Author: Ken Thomases <ken at>
Date:   Tue Aug  4 02:40:38 2015 -0500

dbghelp: Ignore Mach-O segments other than __TEXT for images in dyld's shared cache.

Images in the shared cache have their segments mapped non-contiguously.  We
don't know how to find where the non-__TEXT segments actually are.  Also, the
code assumes that the image is mapped contiguously in various places.  So, we
just ignore those segments.

Treating the non-contiguous segments as though they were contiguous caused
their apparent memory ranges to overlap, leading to addresses being attributed
to the wrong module, let alone symbol.


 dlls/dbghelp/dbghelp_private.h |  2 +-
 dlls/dbghelp/image_private.h   |  1 +
 dlls/dbghelp/macho_module.c    | 96 ++++++++++++++++++++++++++++++++++--------
 dlls/dbghelp/minidump.c        |  2 +-
 dlls/dbghelp/path.c            |  2 +-
 5 files changed, 83 insertions(+), 20 deletions(-)


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