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| author | Alexandre Oliva <aoliva@redhat.com> | 2005-10-24 17:51:42 +0000 |
|---|---|---|
| committer | Alexandre Oliva <aoliva@redhat.com> | 2005-10-24 17:51:42 +0000 |
| commit | ac8e81ff9b598423414d41c3749a817c1243db99 (patch) | |
| tree | da70728cdcf851702a7e685846052852bb9ebeb8 /gas/struc-symbol.h | |
| parent | a886d33869430050243a01462b61d18abac3630d (diff) | |
| download | binutils-redhat-ac8e81ff9b598423414d41c3749a817c1243db99.tar.gz | |
gas/ChangeLog:
* read.c (potable): Add weakref.
(s_weakref): New.
* read.h (s_weakref): Declare.
* struc-symbol.h (struct symbol): Add sy_weakrefr and sy_weakrefd.
* symbols.c (colon): Clear weakrefr.
(symbol_find_exact): Rename to, and reimplement in terms of...
(symbol_find_exact_noref): ... new function.
(symbol_find): Likewise...
(symbol_find_noref): ... ditto.
(resolve_symbol_value): Resolve weakrefr without setting their
values.
(S_SET_WEAK): Call hook.
(S_GET_VALUE): Follow weakref link.
(S_SET_VALUE): Clear weakrefr.
(S_IS_WEAK): Follow weakref link.
(S_IS_WEAKREFR, S_SET_WEAKREFR, S_CLEAR_WEAKREFR): New.
(S_IS_WEAKREFD, S_SET_WEAKREFD, S_CLEAR_WEAKREFD): New.
(symbol_set_value_expression, symbol_set_frag): Clear weakrefr.
(symbol_mark_used): Follow weakref link.
(print_symbol_value_1): Print weak, weakrefr and weakrefd.
* symbols.h (symbol_find_noref, symbol_find_exact_noref): Declare.
(S_IS_WEAKREFR, S_SET_WEAKREFR, S_CLEAR_WEAKREFR): Declare.
(S_IS_WEAKREFD, S_SET_WEAKREFD, S_CLEAR_WEAKREFD): Declare.
* write.c (adust_reloc_syms): Follow weakref link. Do not
complain if target is undefined.
(write_object_file): Likewise. Remove weakrefr symbols. Drop
unreferenced weakrefd symbols.
* config/obj-coff.c (obj_frob_symbol): Do not force WEAKREFD
symbols EXTERNAL.
(pecoff_obj_set_weak_hook, pecoff_obj_clear_weak_hook): New.
* config/obj-coff.h (obj_set_weak_hook, obj_clear_weak_hook): Define.
* doc/as.texinfo: Document weakref.
* doc/internals.texi: Document new struct members, internal
functions and hooks.
gas/testsuite/ChangeLog:
* gas/all/weakref1.s, gas/all/weakref1.d: New test.
* gas/all/weakref1g.d, gas/all/weakref1l.d: New tests.
* gas/all/weakref1u.d, gas/all/weakref1w.d: New tests.
* gas/all/weakref2.s, gas/all/weakref3.s: New tests.
* gas/all/gas.exp: Run new tests.
Diffstat (limited to 'gas/struc-symbol.h')
| -rw-r--r-- | gas/struc-symbol.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gas/struc-symbol.h b/gas/struc-symbol.h index 2326ee4f06..75e22076ca 100644 --- a/gas/struc-symbol.h +++ b/gas/struc-symbol.h @@ -72,6 +72,15 @@ struct symbol routines. */ unsigned int sy_mri_common : 1; + /* This is set if the symbol is set with a .weakref directive. */ + unsigned int sy_weakrefr : 1; + + /* This is set when the symbol is referenced as part of a .weakref + directive, but only if the symbol was not in the symbol table + before. It is cleared as soon as any direct reference to the + symbol is present. */ + unsigned int sy_weakrefd : 1; + #ifdef OBJ_SYMFIELD_TYPE OBJ_SYMFIELD_TYPE sy_obj; #endif |