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Make sure `foo=foo' behaves like a no-op.

This commit is contained in:
pk 1994-12-20 12:27:49 +00:00
parent bd0189777f
commit 6382ef4e02
1 changed files with 7 additions and 7 deletions
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14
gnu/usr.bin/gas/config/obj-aout.c
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@ -228,6 +228,10 @@ symbolS *symbol_rootP;
temp = S_GET_NAME(symbolP);
S_SET_OFFSET(symbolP, symbolP->sy_name_offset);
/* Any symbol still undefined and is not a dbg symbol is made N_EXT. */
if (!S_IS_DEBUG(symbolP) && !S_IS_DEFINED(symbolP))
S_SET_EXTERNAL(symbolP);
/*
* Put aux info in lower four bits of `n_other' field
* Do this only now, because things like S_IS_DEFINED()
@ -236,10 +240,6 @@ symbolS *symbol_rootP;
S_SET_OTHER(symbolP,
(symbolP->sy_bind << 4) | (symbolP->sy_aux & 0xf) );
/* Any symbol still undefined and is not a dbg symbol is made N_EXT. */
if (!S_IS_DEBUG(symbolP) && !S_IS_DEFINED(symbolP))
S_SET_EXTERNAL(symbolP);
if (S_GET_TYPE(symbolP) == N_SIZE) {
expressionS *exp = (expressionS*)symbolP->sy_sizexp;
long size = 0;
@ -468,7 +468,7 @@ object_headers *headers;
/* JF deal with forward references first... */
for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next(symbolP)) {
if (symbolP->sy_forward) {
if (symbolP->sy_forward && symbolP->sy_forward != symbolP) {
S_SET_SEGMENT(symbolP,
S_GET_SEGMENT(symbolP->sy_forward));
S_SET_VALUE(symbolP, S_GET_VALUE(symbolP)
@ -478,8 +478,8 @@ object_headers *headers;
symbolP->sy_aux |= symbolP->sy_forward->sy_aux;
if (S_IS_EXTERNAL(symbolP->sy_forward))
S_SET_EXTERNAL(symbolP);
symbolP->sy_forward=0;
} /* if it has a forward reference */
symbolP->sy_forward=0;
} /* walk the symbol chain */
tc_crawl_symbol_chain(headers);
@ -488,7 +488,7 @@ object_headers *headers;
while ((symbolP = *symbolPP) != NULL) {
if (flagseen['R'] && (S_GET_SEGMENT(symbolP) == SEG_DATA)) {
S_SET_SEGMENT(symbolP, SEG_TEXT);
} /* if pusing data into text */
} /* if pushing data into text */
S_SET_VALUE(symbolP, S_GET_VALUE(symbolP) + symbolP->sy_frag->fr_address);