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Add Objfile.lookup_{global,static}_symbol functions

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This is essentially the inverse of Symbol.objfile. This allows
handling different symbols with the same name (but from different
objfiles) and can also be faster if the objfile is known.

gdb/ChangeLog:

2019-07-29  Christian Biesinger  <cbiesinger@google.com>

	* NEWS: Mention new functions Objfile.lookup_{global,static}_symbol.
	* python/py-objfile.c (objfpy_lookup_global_symbol): New function.
	(objfpy_lookup_static_symbol): New function.
	(objfile_object_methods): Add new functions.

gdb/doc/ChangeLog:

2019-07-29  Christian Biesinger  <cbiesinger@google.com>

	* python.texi (Objfiles In Python): Document new functions
	  Objfile.lookup_{global,static}_symbol.

gdb/testsuite/ChangeLog:

2019-07-29  Christian Biesinger  <cbiesinger@google.com>

	* gdb.python/py-objfile.c: Add global and static vars.
	* gdb.python/py-objfile.exp: Test new functions Objfile.
	  lookup_global_symbol and lookup_static_symbol.
This commit is contained in:
Christian Biesinger 2019-06-25 15:45:41 -05:00
parent e48de49be5
commit c620ed8866
8 changed files with 133 additions and 0 deletions
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17
gdb/doc/python.texi
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@ -4441,6 +4441,23 @@ searches then this function can be used to add a debug info file
from a different place.
@end defun
@defun Objfile.lookup_global_symbol (name @r{[}, domain@r{]})
Search for a global symbol named @var{name} in this objfile. Optionally, the
search scope can be restricted with the @var{domain} argument.
The @var{domain} argument must be a domain constant defined in the @code{gdb}
module and described in @ref{Symbols In Python}. This function is similar to
@code{gdb.lookup_global_symbol}, except that the search is limited to this
objfile.
The result is a @code{gdb.Symbol} object or @code{None} if the symbol
is not found.
@end defun
@defun Objfile.lookup_static_symbol (name @r{[}, domain@r{]})
Like @code{Objfile.lookup_global_symbol}, but searches for a global
symbol with static linkage named @var{name} in this objfile.
@end defun
@node Frames In Python
@subsubsection Accessing inferior stack frames from Python