diff options
Diffstat (limited to 'gas/ehopt.c')
| -rw-r--r-- | gas/ehopt.c | 35 |
1 files changed, 17 insertions, 18 deletions
diff --git a/gas/ehopt.c b/gas/ehopt.c index 5a9d9d6..a8f450b 100644 --- a/gas/ehopt.c +++ b/gas/ehopt.c @@ -306,25 +306,24 @@ check_eh_frame (expressionS *exp, unsigned int *pnbytes) switch (d->state) { case state_idle: - if (*pnbytes == 4) + /* This might be the size of the CIE or FDE. We want to know + the size so that we don't accidentally optimize across an FDE + boundary. We recognize the size in one of two forms: a + symbol which will later be defined as a difference, or a + subtraction of two symbols. Either way, we can tell when we + are at the end of the FDE because the symbol becomes defined + (in the case of a subtraction, the end symbol, from which the + start symbol is being subtracted). Other ways of describing + the size will not be optimized. */ + if (*pnbytes == 4 + && !seg_info (now_seg)->insn_seen + && (exp->X_op == O_symbol || exp->X_op == O_subtract) + && !S_IS_DEFINED (exp->X_add_symbol)) { - /* This might be the size of the CIE or FDE. We want to know - the size so that we don't accidentally optimize across an FDE - boundary. We recognize the size in one of two forms: a - symbol which will later be defined as a difference, or a - subtraction of two symbols. Either way, we can tell when we - are at the end of the FDE because the symbol becomes defined - (in the case of a subtraction, the end symbol, from which the - start symbol is being subtracted). Other ways of describing - the size will not be optimized. */ - if ((exp->X_op == O_symbol || exp->X_op == O_subtract) - && ! S_IS_DEFINED (exp->X_add_symbol)) - { - d->state = state_saw_size; - d->size_end_sym = exp->X_add_symbol; - if (!d->cie_info.f) - d->cie_info.f = frag_now; - } + d->state = state_saw_size; + d->size_end_sym = exp->X_add_symbol; + if (!d->cie_info.f) + d->cie_info.f = frag_now; } break; |