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| author | Christian Biesinger <cbiesinger@google.com> | 2019-07-31 17:10:50 -0500 |
|---|---|---|
| committer | Christian Biesinger <cbiesinger@google.com> | 2019-08-05 10:35:35 -0500 |
| commit | 4ee94178afbe062bc244d28595f86d63633a7af7 (patch) | |
| tree | 2a2eeb6f68df12e7abf202073a6ba71e25f299e4 | |
| parent | 276cbbdf990f3f09acacdf3d9603b054ac7d29da (diff) | |
| download | gdb-4ee94178afbe062bc244d28595f86d63633a7af7.zip gdb-4ee94178afbe062bc244d28595f86d63633a7af7.tar.gz gdb-4ee94178afbe062bc244d28595f86d63633a7af7.tar.bz2 | |
Add a comment briefly explaining partial symbols
Based on an explanation by tromey on IRC.
gdb/ChangeLog:
2019-08-05 Christian Biesinger <cbiesinger@google.com>
* objfiles.h (objfile): Add a comment describing partial symbols.
| -rw-r--r-- | gdb/ChangeLog | 4 | ||||
| -rw-r--r-- | gdb/objfiles.h | 8 |
2 files changed, 11 insertions, 1 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 0d324a5..da1d636 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,7 @@ +2019-08-05 Christian Biesinger <cbiesinger@google.com> + + * objfiles.h (objfile): Add a comment describing partial symbols. + 2019-08-05 Tom Tromey <tromey@adacore.com> * compile/compile.c (_initialize_compile): Use _(), not N_(). diff --git a/gdb/objfiles.h b/gdb/objfiles.h index a0c106b..239aba2 100644 --- a/gdb/objfiles.h +++ b/gdb/objfiles.h @@ -382,7 +382,13 @@ private: 2. Additional symbol files added by the add-symbol-file command, 3. Shared library objfiles, added by ADD_SOLIB, 4. symbol files for modules that were loaded when GDB attached to a remote system - (see remote-vx.c). */ + (see remote-vx.c). + + GDB typically reads symbols twice -- first an initial scan which just + reads "partial symbols"; these are partial information for the + static/global symbols in a symbol file. When later looking up symbols, + objfile->sf->qf->lookup_symbol is used to check if we only have a partial + symbol and if so, read and expand the full compunit. */ struct objfile { |