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| author | Maciej W. Rozycki <macro@linux-mips.org> | 2010-12-01 21:34:10 +0000 |
|---|---|---|
| committer | Maciej W. Rozycki <macro@linux-mips.org> | 2010-12-01 21:34:10 +0000 |
| commit | 4a826962e76042a7ec1126e1e24b1850faa52443 (patch) | |
| tree | 3350c7e1876f3344a0ff14ada698ac0f92783914 /gas/symbols.c | |
| parent | 3df4e177c9bdd2dd095a3c4e437ffba47cf32b37 (diff) | |
| download | gdb-4a826962e76042a7ec1126e1e24b1850faa52443.zip gdb-4a826962e76042a7ec1126e1e24b1850faa52443.tar.gz gdb-4a826962e76042a7ec1126e1e24b1850faa52443.tar.bz2 | |
* symbols.h (dot_symbol): New declaration.
(dot_symbol_init): New prototype.
* symbols.c (dot_symbol): New variable.
(symbol_clone): Assert it's not dot_symbol being cloned.
(dot_symbol_init): New function.
(symbol_clone_if_forward_ref): Create a new temporary symbol
when trying to clone dot_symbol.
* expr.c (current_location): Refer to dot_symbol instead of
making a new temporary symbol.
* read.c (read_a_source_file): Update dot_symbol as we go.
* as.c (main): Call dot_symbol_init.
Diffstat (limited to 'gas/symbols.c')
| -rw-r--r-- | gas/symbols.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/gas/symbols.c b/gas/symbols.c index e432b86..5fae547 100644 --- a/gas/symbols.c +++ b/gas/symbols.c @@ -48,6 +48,7 @@ static struct hash_control *local_hash; symbolS *symbol_rootP; symbolS *symbol_lastP; symbolS abs_symbol; +symbolS dot_symbol; #ifdef DEBUG_SYMS #define debug_verify_symchain verify_symbol_chain @@ -557,6 +558,9 @@ symbol_clone (symbolS *orgsymP, int replace) symbolS *newsymP; asymbol *bsymorg, *bsymnew; + /* Make sure we never clone the dot special symbol. */ + gas_assert (orgsymP != &dot_symbol); + /* Running local_symbol_convert on a clone that's not the one currently in local_hash would incorrectly replace the hash entry. Thus the symbol must be converted here. Note that the rest of the function @@ -658,8 +662,13 @@ symbol_clone_if_forward_ref (symbolS *symbolP, int is_forward) || add_symbol != symbolP->sy_value.X_add_symbol || op_symbol != symbolP->sy_value.X_op_symbol) { - symbolP = symbol_clone (symbolP, 0); - symbolP->sy_resolving = 0; + if (symbolP != &dot_symbol) + { + symbolP = symbol_clone (symbolP, 0); + symbolP->sy_resolving = 0; + } + else + symbolP = symbol_temp_new_now (); } symbolP->sy_value.X_add_symbol = add_symbol; @@ -2749,6 +2758,17 @@ symbol_begin (void) if (LOCAL_LABELS_FB) fb_label_init (); } + +void +dot_symbol_init (void) +{ + dot_symbol.bsym = bfd_make_empty_symbol (stdoutput); + if (dot_symbol.bsym == NULL) + as_fatal ("bfd_make_empty_symbol: %s", bfd_errmsg (bfd_get_error ())); + dot_symbol.bsym->name = "."; + dot_symbol.sy_forward_ref = 1; + dot_symbol.sy_value.X_op = O_constant; +} int indent_level; |