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cd026728f3
A C_BSTAT debug symbol specifies the beginning of a static block. Its n_value is the index of the csect containing static symbols. A C_STSYM debug symbol represents the stabstring of a statically allocated symbol. Its n_value is the offset in the csect pointed by the containing C_BSTAT. These two special n_value were not correctly handled both when generating object files with gas or when reading them with objdump. This patch tries to improve that and, above all, to allow gas-generated object files with such symbols to be accepted by AIX ld. bfd/ * coff-bfd.c (bfd_coff_get_syment): Adjust n_value of symbols having fix_value = 1 in order to be an index and not a memory offset. * coffgen.c (coff_get_symbol_info): Likewize. (coff_print_symbol): Likewize. gas/ * config/tc-ppc.c (ppc_frob_label): Don't change within if already set. (ppc_stabx): Remove workaround changing exp.X_add_symbol's within. * config/tc-ppc.h (struct ppc_tc_sy): Update comments. * symbols.c (resolve_symbol_value): Remove symbol update when final_val is 0 and it's an AIX debug symbol. * testsuite/gas/ppc/aix.exp: Add new tests. * testsuite/gas/ppc/xcoff-stsym-32.d: New test. * testsuite/gas/ppc/xcoff-stsym-64.d: New test. * testsuite/gas/ppc/xcoff-stsym.s: New test.
101 lines
2.7 KiB
C
101 lines
2.7 KiB
C
/* BFD COFF interfaces used outside of BFD.
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Copyright (C) 1990-2021 Free Software Foundation, Inc.
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Written by Cygnus Support.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include "bfd.h"
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#include "libbfd.h"
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#include "coff/internal.h"
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#include "libcoff.h"
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/* Return the COFF syment for a symbol. */
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bool
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bfd_coff_get_syment (bfd *abfd,
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asymbol *symbol,
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struct internal_syment *psyment)
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{
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coff_symbol_type *csym;
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csym = coff_symbol_from (symbol);
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if (csym == NULL || csym->native == NULL
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|| ! csym->native->is_sym)
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{
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bfd_set_error (bfd_error_invalid_operation);
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return false;
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}
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*psyment = csym->native->u.syment;
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if (csym->native->fix_value)
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psyment->n_value =
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((psyment->n_value - (bfd_hostptr_t) obj_raw_syments (abfd))
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/ sizeof (combined_entry_type));
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/* FIXME: We should handle fix_line here. */
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return true;
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}
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/* Return the COFF auxent for a symbol. */
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bool
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bfd_coff_get_auxent (bfd *abfd,
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asymbol *symbol,
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int indx,
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union internal_auxent *pauxent)
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{
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coff_symbol_type *csym;
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combined_entry_type *ent;
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csym = coff_symbol_from (symbol);
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if (csym == NULL
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|| csym->native == NULL
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|| ! csym->native->is_sym
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|| indx >= csym->native->u.syment.n_numaux)
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{
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bfd_set_error (bfd_error_invalid_operation);
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return false;
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}
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ent = csym->native + indx + 1;
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BFD_ASSERT (! ent->is_sym);
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*pauxent = ent->u.auxent;
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if (ent->fix_tag)
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pauxent->x_sym.x_tagndx.l =
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((combined_entry_type *) pauxent->x_sym.x_tagndx.p
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- obj_raw_syments (abfd));
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if (ent->fix_end)
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pauxent->x_sym.x_fcnary.x_fcn.x_endndx.l =
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((combined_entry_type *) pauxent->x_sym.x_fcnary.x_fcn.x_endndx.p
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- obj_raw_syments (abfd));
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if (ent->fix_scnlen)
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pauxent->x_csect.x_scnlen.l =
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((combined_entry_type *) pauxent->x_csect.x_scnlen.p
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- obj_raw_syments (abfd));
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return true;
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}
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