gas/

2005-11-17  Jan Beulich  <jbeulich@novell.com>


	* symbols.h (S_CLEAR_VOLATILE): Declare.
	* symbols.c (colon): Also accept redefinable symbols for
	redefinition. Clone them before modifying.
	(S_CLEAR_VOLATILE): Define.
	* cond.c (s_ifdef): Also test for equated symbols.
	* read.c (s_comm_internal): Also exclude non-redefinable
	equated symbols. Clone redefinable ones before modifying.
	(s_weakref): Clone redefinable symbols before modifying.
	* doc/internals.texi: Document sy_volatile, sy_forward_ref,
	S_IS_VOLATILE, S_SET_VOLATILE, S_CLEAR_VOLATILE,
	S_IS_FORWARD_REF, and S_SET_FORWARD_REF.

gas/testsuite/
2005-11-17  Jan Beulich  <jbeulich@novell.com>

	* gas/all/cond.s: Also check ifdef works on equates and
	commons.
	* gas/all/cond.l: Adjust.
	* gas/all/redef2.s: Also test redefining equate to label.
	* gas/all/redef2.d: Adjust.
	* gas/all/redef3.[sd]: New.
	* gas/all/redef4.s: New.
	* gas/all/redef5.s: New.
	* gas/elf/redef.s: New, copied from original gas/all/redef2.s.
	* gas/elf/redef.d: Remove #source.
	* gas/all/gas.exp: Remove exclusion of iq2000-*-* from and
	adjust xfails for redefinition tests. Run new tests. Exclude
	alpha*-*-*, mips*-*-*, *c54x*-*-* from weakref tests.

1 files changed, 29 insertions, 0 deletions

diff --git a/gas/doc/internals.texi b/gas/doc/internals.texi
index 51b4061030..dffdb1e04f 100644
--- a/gas/doc/internals.texi
+++ b/gas/doc/internals.texi
@@ -93,6 +93,12 @@ responsible for setting it when a symbol is used in backend routines.
 Whether the symbol is an MRI common symbol created by the @code{COMMON}
 pseudo-op when assembling in MRI mode.
 
+@item sy_volatile
+Whether the symbol can be re-defined.
+
+@item sy_forward_ref
+Whether the symbol's value must only be evaluated upon use.
+
 @item sy_weakrefr
 Whether the symbol is a @code{weakref} alias to another symbol.
 
@@ -165,6 +171,16 @@ Return non-zero if the symbol is a @code{weakref} alias.
 Return non-zero if the symbol was aliased by a @code{weakref} alias and has not
 had any strong references.
 
+@item S_IS_VOLATILE
+@cindex S_IS_VOLATILE
+Return non-zero if the symbol may be re-defined. Such symbols get created by
+the @code{=} operator, @code{equ}, or @code{set}.
+
+@item S_IS_FORWARD_REF
+@cindex S_IS_FORWARD_REF
+Return non-zero if the symbol is a forward reference, that is its value must
+only be determined upon use.
+
 @item S_IS_COMMON
 @cindex S_IS_COMMON
 Return non-zero if this is a common symbol.  Common symbols are sometimes
@@ -222,6 +238,19 @@ Clear the @code{weakref} aliased status of a symbol.  This is implicitly called
 whenever the symbol is looked up, as part of a direct reference or a
 definition, but not as part of a @code{weakref} directive.
 
+@item S_SET_VOLATILE
+@cindex S_SET_VOLATILE
+Indicate that the symbol may be re-defined.
+
+@item S_CLEAR_VOLATILE
+@cindex S_CLEAR_VOLATILE
+Indicate that the symbol may no longer be re-defined.
+
+@item S_SET_FORWARD_REF
+@cindex S_SET_FORWARD_REF
+Indicate that the symbol is a forward reference, that is its value must only
+be determined upon use.
+
 @item S_GET_TYPE
 @item S_GET_DESC
 @item S_GET_OTHER