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Somewhat more could be done. Fri Jan 8 15:47:53 1993 Ian Lance Taylor (ian@tweedledumb.cygnus.com) * coffcode.h: Moved many generic functions into coffgen.c. Moved swapping functions into coffswap.h for ECOFF use. Moved relocation functions, only used by h8300 and z8k, into reloc16.c. Added hooks for coffgen.c functions to backend data structure, and added hook functions. Still more could be done. * coffswap.h: New file to hold COFF swapping routines. * coffgen.c: New file to hold generic COFF functions. * reloc16.c: New file to hold h8300 and z8k specific relocation functions. * libcoff-in.h: Added declarations for functions in coffgen.c. * libcoff.h: Rebuilt to incorporate changes. * coff-h8300.c: Function name changes. * coff-z8k.c: Function name changes. Use coff_reloc16_extra_cases hook rather than defining EXTRA_CASES. * Makefile.in: Build new files coffgen and reloc16. Added dependencies of coff-*.o on coffswap.h and seclet.h.gdb-4_18-branch
Ian Lance Taylor
34 years ago
8 changed files with 3227 additions and 2622 deletions
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/* Generic COFF swapping routines, for BFD.
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Copyright 1990, 1991, 1992 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 2 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
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/* This file contains routines used to swap COFF data. It is a header
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file because the details of swapping depend on the details of the |
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structures used by each COFF implementation. This is included by |
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coffcode.h, as well as by the ECOFF backend. |
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Any file which uses this must first include "coff/internal.h" and |
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"coff/CPU.h". The functions will then be correct for that CPU. */ |
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#define PUTWORD bfd_h_put_32 |
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#define PUTHALF bfd_h_put_16 |
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#define PUTBYTE bfd_h_put_8 |
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#ifndef GET_FCN_LNNOPTR |
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#define GET_FCN_LNNOPTR(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr) |
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#endif |
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#ifndef GET_FCN_ENDNDX |
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#define GET_FCN_ENDNDX(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx) |
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#endif |
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#ifndef PUT_FCN_LNNOPTR |
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#define PUT_FCN_LNNOPTR(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr) |
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#endif |
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#ifndef PUT_FCN_ENDNDX |
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#define PUT_FCN_ENDNDX(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx) |
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#endif |
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#ifndef GET_LNSZ_LNNO |
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#define GET_LNSZ_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno) |
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#endif |
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#ifndef GET_LNSZ_SIZE |
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#define GET_LNSZ_SIZE(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size) |
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#endif |
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#ifndef PUT_LNSZ_LNNO |
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#define PUT_LNSZ_LNNO(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_sym.x_misc.x_lnsz.x_lnno) |
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#endif |
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#ifndef PUT_LNSZ_SIZE |
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#define PUT_LNSZ_SIZE(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte*) ext->x_sym.x_misc.x_lnsz.x_size) |
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#endif |
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#ifndef GET_SCN_SCNLEN |
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#define GET_SCN_SCNLEN(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_scnlen) |
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#endif |
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#ifndef GET_SCN_NRELOC |
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#define GET_SCN_NRELOC(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nreloc) |
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#endif |
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#ifndef GET_SCN_NLINNO |
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#define GET_SCN_NLINNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nlinno) |
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#endif |
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#ifndef PUT_SCN_SCNLEN |
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#define PUT_SCN_SCNLEN(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_scn.x_scnlen) |
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#endif |
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#ifndef PUT_SCN_NRELOC |
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#define PUT_SCN_NRELOC(abfd,in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_scn.x_nreloc) |
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#endif |
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#ifndef PUT_SCN_NLINNO |
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#define PUT_SCN_NLINNO(abfd,in, ext) bfd_h_put_16(abfd,in, (bfd_byte *) ext->x_scn.x_nlinno) |
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#endif |
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#ifndef GET_LINENO_LNNO |
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#define GET_LINENO_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) (ext->l_lnno)); |
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#endif |
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#ifndef PUT_LINENO_LNNO |
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#define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_16(abfd,val, (bfd_byte *) (ext->l_lnno)); |
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#endif |
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static void |
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DEFUN(bfd_swap_reloc_in,(abfd, reloc_src, reloc_dst), |
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bfd *abfd AND |
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RELOC *reloc_src AND |
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struct internal_reloc *reloc_dst) |
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{ |
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reloc_dst->r_vaddr = bfd_h_get_32(abfd, (bfd_byte *)reloc_src->r_vaddr); |
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reloc_dst->r_symndx = bfd_h_get_32(abfd, (bfd_byte *) reloc_src->r_symndx); |
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#ifdef RS6000COFF_C |
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reloc_dst->r_type = bfd_h_get_8(abfd, reloc_src->r_type); |
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reloc_dst->r_size = bfd_h_get_8(abfd, reloc_src->r_size); |
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#else |
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reloc_dst->r_type = bfd_h_get_16(abfd, (bfd_byte *) reloc_src->r_type); |
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#endif |
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#ifdef SWAP_IN_RELOC_OFFSET |
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reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET(abfd, |
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(bfd_byte *) reloc_src->r_offset); |
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#endif |
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} |
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static unsigned int |
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DEFUN(coff_swap_reloc_out,(abfd, src, dst), |
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bfd *abfd AND |
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PTR src AND |
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PTR dst) |
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{ |
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struct internal_reloc *reloc_src = (struct internal_reloc *)src; |
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struct external_reloc *reloc_dst = (struct external_reloc *)dst; |
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bfd_h_put_32(abfd, reloc_src->r_vaddr, (bfd_byte *) reloc_dst->r_vaddr); |
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bfd_h_put_32(abfd, reloc_src->r_symndx, (bfd_byte *) reloc_dst->r_symndx); |
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bfd_h_put_16(abfd, reloc_src->r_type, (bfd_byte *) |
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reloc_dst->r_type); |
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#ifdef SWAP_OUT_RELOC_OFFSET |
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SWAP_OUT_RELOC_OFFSET(abfd, |
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reloc_src->r_offset, |
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(bfd_byte *) reloc_dst->r_offset); |
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#endif |
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#ifdef SWAP_OUT_RELOC_EXTRA |
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SWAP_OUT_RELOC_EXTRA(abfd,reloc_src, reloc_dst); |
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#endif |
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return sizeof(struct external_reloc); |
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} |
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static void |
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DEFUN(coff_swap_filehdr_in,(abfd, src, dst), |
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bfd *abfd AND |
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PTR src AND |
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PTR dst) |
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{ |
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FILHDR *filehdr_src = (FILHDR *) src; |
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struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst; |
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filehdr_dst->f_magic = bfd_h_get_16(abfd, (bfd_byte *) filehdr_src->f_magic); |
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filehdr_dst->f_nscns = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_nscns); |
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filehdr_dst->f_timdat = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_timdat); |
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filehdr_dst->f_symptr = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_symptr); |
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filehdr_dst->f_nsyms = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_nsyms); |
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filehdr_dst->f_opthdr = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_opthdr); |
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filehdr_dst->f_flags = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_flags); |
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} |
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static unsigned int |
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DEFUN(coff_swap_filehdr_out,(abfd, in, out), |
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bfd *abfd AND |
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PTR in AND |
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PTR out) |
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{ |
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struct internal_filehdr *filehdr_in = (struct internal_filehdr *)in; |
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FILHDR *filehdr_out = (FILHDR *)out; |
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bfd_h_put_16(abfd, filehdr_in->f_magic, (bfd_byte *) filehdr_out->f_magic); |
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bfd_h_put_16(abfd, filehdr_in->f_nscns, (bfd_byte *) filehdr_out->f_nscns); |
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bfd_h_put_32(abfd, filehdr_in->f_timdat, (bfd_byte *) filehdr_out->f_timdat); |
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bfd_h_put_32(abfd, filehdr_in->f_symptr, (bfd_byte *) filehdr_out->f_symptr); |
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bfd_h_put_32(abfd, filehdr_in->f_nsyms, (bfd_byte *) filehdr_out->f_nsyms); |
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bfd_h_put_16(abfd, filehdr_in->f_opthdr, (bfd_byte *) filehdr_out->f_opthdr); |
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bfd_h_put_16(abfd, filehdr_in->f_flags, (bfd_byte *) filehdr_out->f_flags); |
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return sizeof(FILHDR); |
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} |
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#ifndef NO_COFF_SYMBOLS |
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static void |
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DEFUN(coff_swap_sym_in,(abfd, ext1, in1), |
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bfd *abfd AND |
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PTR ext1 AND |
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PTR in1) |
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{ |
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SYMENT *ext = (SYMENT *)ext1; |
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struct internal_syment *in = (struct internal_syment *)in1; |
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if( ext->e.e_name[0] == 0) { |
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in->_n._n_n._n_zeroes = 0; |
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in->_n._n_n._n_offset = bfd_h_get_32(abfd, (bfd_byte *) ext->e.e.e_offset); |
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} |
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else { |
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#if SYMNMLEN != E_SYMNMLEN |
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-> Error, we need to cope with truncating or extending SYMNMLEN!; |
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#else |
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memcpy(in->_n._n_name, ext->e.e_name, SYMNMLEN); |
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#endif |
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} |
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in->n_value = bfd_h_get_32(abfd, (bfd_byte *) ext->e_value); |
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in->n_scnum = bfd_h_get_16(abfd, (bfd_byte *) ext->e_scnum); |
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if (sizeof(ext->e_type) == 2){ |
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in->n_type = bfd_h_get_16(abfd, (bfd_byte *) ext->e_type); |
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} |
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else { |
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in->n_type = bfd_h_get_32(abfd, (bfd_byte *) ext->e_type); |
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} |
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in->n_sclass = bfd_h_get_8(abfd, ext->e_sclass); |
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in->n_numaux = bfd_h_get_8(abfd, ext->e_numaux); |
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} |
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static unsigned int |
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DEFUN(coff_swap_sym_out,(abfd, inp, extp), |
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bfd *abfd AND |
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PTR inp AND |
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PTR extp) |
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{ |
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struct internal_syment *in = (struct internal_syment *)inp; |
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SYMENT *ext =(SYMENT *)extp; |
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if(in->_n._n_name[0] == 0) { |
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bfd_h_put_32(abfd, 0, (bfd_byte *) ext->e.e.e_zeroes); |
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bfd_h_put_32(abfd, in->_n._n_n._n_offset, (bfd_byte *) ext->e.e.e_offset); |
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} |
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else { |
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#if SYMNMLEN != E_SYMNMLEN |
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-> Error, we need to cope with truncating or extending SYMNMLEN!; |
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#else |
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memcpy(ext->e.e_name, in->_n._n_name, SYMNMLEN); |
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#endif |
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} |
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bfd_h_put_32(abfd, in->n_value , (bfd_byte *) ext->e_value); |
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bfd_h_put_16(abfd, in->n_scnum , (bfd_byte *) ext->e_scnum); |
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if (sizeof(ext->e_type) == 2) |
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{ |
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bfd_h_put_16(abfd, in->n_type , (bfd_byte *) ext->e_type); |
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} |
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else |
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{ |
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bfd_h_put_32(abfd, in->n_type , (bfd_byte *) ext->e_type); |
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} |
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bfd_h_put_8(abfd, in->n_sclass , ext->e_sclass); |
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bfd_h_put_8(abfd, in->n_numaux , ext->e_numaux); |
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return sizeof(SYMENT); |
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} |
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static void |
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DEFUN(coff_swap_aux_in,(abfd, ext1, type, class, in1), |
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bfd *abfd AND |
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PTR ext1 AND |
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int type AND |
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int class AND |
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PTR in1) |
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{ |
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AUXENT *ext = (AUXENT *)ext1; |
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union internal_auxent *in = (union internal_auxent *)in1; |
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switch (class) { |
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case C_FILE: |
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if (ext->x_file.x_fname[0] == 0) { |
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in->x_file.x_n.x_zeroes = 0; |
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in->x_file.x_n.x_offset = |
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bfd_h_get_32(abfd, (bfd_byte *) ext->x_file.x_n.x_offset); |
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} else { |
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#if FILNMLEN != E_FILNMLEN |
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-> Error, we need to cope with truncating or extending FILNMLEN!; |
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#else |
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memcpy (in->x_file.x_fname, ext->x_file.x_fname, FILNMLEN); |
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#endif |
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} |
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break; |
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/* RS/6000 "csect" auxents */ |
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#ifdef RS6000COFF_C |
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case C_EXT: |
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case C_HIDEXT: |
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in->x_csect.x_scnlen = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_scnlen); |
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in->x_csect.x_parmhash = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_parmhash); |
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in->x_csect.x_snhash = bfd_h_get_16 (abfd, (bfd_byte *) ext->x_csect.x_snhash); |
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/* We don't have to hack bitfields in x_smtyp because it's defined by
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shifts-and-ands, which are equivalent on all byte orders. */ |
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in->x_csect.x_smtyp = bfd_h_get_8 (abfd, (bfd_byte *) ext->x_csect.x_smtyp); |
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in->x_csect.x_smclas = bfd_h_get_8 (abfd, (bfd_byte *) ext->x_csect.x_smclas); |
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in->x_csect.x_stab = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_stab); |
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in->x_csect.x_snstab = bfd_h_get_16 (abfd, (bfd_byte *) ext->x_csect.x_snstab); |
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break; |
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#endif |
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case C_STAT: |
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#ifdef C_LEAFSTAT |
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case C_LEAFSTAT: |
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#endif |
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case C_HIDDEN: |
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if (type == T_NULL) { |
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in->x_scn.x_scnlen = GET_SCN_SCNLEN(abfd, ext); |
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in->x_scn.x_nreloc = GET_SCN_NRELOC(abfd, ext); |
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in->x_scn.x_nlinno = GET_SCN_NLINNO(abfd, ext); |
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break; |
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} |
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default: |
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in->x_sym.x_tagndx.l = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_tagndx); |
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#ifndef NO_TVNDX |
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in->x_sym.x_tvndx = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_tvndx); |
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#endif |
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if (ISARY(type)) { |
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#if DIMNUM != E_DIMNUM |
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-> Error, we need to cope with truncating or extending DIMNUM!; |
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#else |
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in->x_sym.x_fcnary.x_ary.x_dimen[0] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[0]); |
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in->x_sym.x_fcnary.x_ary.x_dimen[1] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[1]); |
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in->x_sym.x_fcnary.x_ary.x_dimen[2] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[2]); |
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in->x_sym.x_fcnary.x_ary.x_dimen[3] = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[3]); |
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#endif |
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} |
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if (class == C_BLOCK || ISFCN(type) || ISTAG(class)) { |
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in->x_sym.x_fcnary.x_fcn.x_lnnoptr = GET_FCN_LNNOPTR(abfd, ext); |
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in->x_sym.x_fcnary.x_fcn.x_endndx.l = GET_FCN_ENDNDX(abfd, ext); |
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} |
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if (ISFCN(type)) { |
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in->x_sym.x_misc.x_fsize = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_fsize); |
||||
|
} |
||||
|
else { |
||||
|
in->x_sym.x_misc.x_lnsz.x_lnno = GET_LNSZ_LNNO(abfd, ext); |
||||
|
in->x_sym.x_misc.x_lnsz.x_size = GET_LNSZ_SIZE(abfd, ext); |
||||
|
} |
||||
|
} |
||||
|
} |
||||
|
|
||||
|
static unsigned int |
||||
|
DEFUN(coff_swap_aux_out,(abfd, inp, type, class, extp), |
||||
|
bfd *abfd AND |
||||
|
PTR inp AND |
||||
|
int type AND |
||||
|
int class AND |
||||
|
PTR extp) |
||||
|
{ |
||||
|
union internal_auxent *in = (union internal_auxent *)inp; |
||||
|
AUXENT *ext = (AUXENT *)extp; |
||||
|
|
||||
|
memset((PTR)ext, 0, AUXESZ); |
||||
|
switch (class) { |
||||
|
case C_FILE: |
||||
|
if (in->x_file.x_fname[0] == 0) { |
||||
|
PUTWORD(abfd, 0, (bfd_byte *) ext->x_file.x_n.x_zeroes); |
||||
|
PUTWORD(abfd, |
||||
|
in->x_file.x_n.x_offset, |
||||
|
(bfd_byte *) ext->x_file.x_n.x_offset); |
||||
|
} |
||||
|
else { |
||||
|
#if FILNMLEN != E_FILNMLEN |
||||
|
-> Error, we need to cope with truncating or extending FILNMLEN!; |
||||
|
#else |
||||
|
memcpy (ext->x_file.x_fname, in->x_file.x_fname, FILNMLEN); |
||||
|
#endif |
||||
|
} |
||||
|
break; |
||||
|
|
||||
|
#ifdef RS6000COFF_C |
||||
|
/* RS/6000 "csect" auxents */ |
||||
|
case C_EXT: |
||||
|
case C_HIDEXT: |
||||
|
PUTWORD (abfd, in->x_csect.x_scnlen, ext->x_csect.x_scnlen); |
||||
|
PUTWORD (abfd, in->x_csect.x_parmhash, ext->x_csect.x_parmhash); |
||||
|
PUTHALF (abfd, in->x_csect.x_snhash, ext->x_csect.x_snhash); |
||||
|
/* We don't have to hack bitfields in x_smtyp because it's defined by
|
||||
|
shifts-and-ands, which are equivalent on all byte orders. */ |
||||
|
PUTBYTE (abfd, in->x_csect.x_smtyp, ext->x_csect.x_smtyp); |
||||
|
PUTBYTE (abfd, in->x_csect.x_smclas, ext->x_csect.x_smclas); |
||||
|
PUTWORD (abfd, in->x_csect.x_stab, ext->x_csect.x_stab); |
||||
|
PUTHALF (abfd, in->x_csect.x_snstab, ext->x_csect.x_snstab); |
||||
|
break; |
||||
|
#endif |
||||
|
|
||||
|
case C_STAT: |
||||
|
#ifdef C_LEAFSTAT |
||||
|
case C_LEAFSTAT: |
||||
|
#endif |
||||
|
case C_HIDDEN: |
||||
|
if (type == T_NULL) { |
||||
|
PUT_SCN_SCNLEN(abfd, in->x_scn.x_scnlen, ext); |
||||
|
PUT_SCN_NRELOC(abfd, in->x_scn.x_nreloc, ext); |
||||
|
PUT_SCN_NLINNO(abfd, in->x_scn.x_nlinno, ext); |
||||
|
break; |
||||
|
} |
||||
|
default: |
||||
|
PUTWORD(abfd, in->x_sym.x_tagndx.l, (bfd_byte *) ext->x_sym.x_tagndx); |
||||
|
#ifndef NO_TVNDX |
||||
|
bfd_h_put_16(abfd, in->x_sym.x_tvndx , (bfd_byte *) ext->x_sym.x_tvndx); |
||||
|
#endif |
||||
|
|
||||
|
if (class == C_BLOCK || ISFCN(type) || ISTAG(class)) { |
||||
|
PUT_FCN_LNNOPTR(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext); |
||||
|
PUT_FCN_ENDNDX(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l, ext); |
||||
|
} |
||||
|
|
||||
|
if (ISFCN(type)) { |
||||
|
PUTWORD(abfd, in->x_sym.x_misc.x_fsize, (bfd_byte *) ext->x_sym.x_misc.x_fsize); |
||||
|
} |
||||
|
else { |
||||
|
if (ISARY(type)) { |
||||
|
#if DIMNUM != E_DIMNUM |
||||
|
-> Error, we need to cope with truncating or extending DIMNUM!; |
||||
|
#else |
||||
|
bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[0], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[0]); |
||||
|
bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[1], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[1]); |
||||
|
bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[2], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[2]); |
||||
|
bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[3], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[3]); |
||||
|
#endif |
||||
|
} |
||||
|
PUT_LNSZ_LNNO(abfd, in->x_sym.x_misc.x_lnsz.x_lnno, ext); |
||||
|
PUT_LNSZ_SIZE(abfd, in->x_sym.x_misc.x_lnsz.x_size, ext); |
||||
|
} |
||||
|
} |
||||
|
return sizeof(AUXENT); |
||||
|
} |
||||
|
|
||||
|
#endif /* NO_COFF_SYMBOLS */ |
||||
|
|
||||
|
#ifndef NO_COFF_LINENOS |
||||
|
|
||||
|
static void |
||||
|
DEFUN(coff_swap_lineno_in,(abfd, ext1, in1), |
||||
|
bfd *abfd AND |
||||
|
PTR ext1 AND |
||||
|
PTR in1) |
||||
|
{ |
||||
|
LINENO *ext = (LINENO *)ext1; |
||||
|
struct internal_lineno *in = (struct internal_lineno *)in1; |
||||
|
|
||||
|
in->l_addr.l_symndx = bfd_h_get_32(abfd, (bfd_byte *) ext->l_addr.l_symndx); |
||||
|
in->l_lnno = GET_LINENO_LNNO(abfd, ext); |
||||
|
} |
||||
|
|
||||
|
static unsigned int |
||||
|
DEFUN(coff_swap_lineno_out,(abfd, inp, outp), |
||||
|
bfd *abfd AND |
||||
|
PTR inp AND |
||||
|
PTR outp) |
||||
|
{ |
||||
|
struct internal_lineno *in = (struct internal_lineno *)inp; |
||||
|
struct external_lineno *ext = (struct external_lineno *)outp; |
||||
|
PUTWORD(abfd, in->l_addr.l_symndx, (bfd_byte *) |
||||
|
ext->l_addr.l_symndx); |
||||
|
|
||||
|
PUT_LINENO_LNNO (abfd, in->l_lnno, ext); |
||||
|
return sizeof(struct external_lineno); |
||||
|
} |
||||
|
|
||||
|
#endif /* NO_COFF_LINENOS */ |
||||
|
|
||||
|
|
||||
|
static void |
||||
|
DEFUN(coff_swap_aouthdr_in,(abfd, aouthdr_ext1, aouthdr_int1), |
||||
|
bfd *abfd AND |
||||
|
PTR aouthdr_ext1 AND |
||||
|
PTR aouthdr_int1) |
||||
|
{ |
||||
|
AOUTHDR *aouthdr_ext = (AOUTHDR *) aouthdr_ext1; |
||||
|
struct internal_aouthdr *aouthdr_int = (struct internal_aouthdr *)aouthdr_int1; |
||||
|
|
||||
|
aouthdr_int->magic = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->magic); |
||||
|
aouthdr_int->vstamp = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->vstamp); |
||||
|
aouthdr_int->tsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tsize); |
||||
|
aouthdr_int->dsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->dsize); |
||||
|
aouthdr_int->bsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->bsize); |
||||
|
aouthdr_int->entry = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->entry); |
||||
|
aouthdr_int->text_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->text_start); |
||||
|
aouthdr_int->data_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->data_start); |
||||
|
#ifdef I960 |
||||
|
aouthdr_int->tagentries = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tagentries); |
||||
|
#endif |
||||
|
|
||||
|
#ifdef RS6000COFF_C |
||||
|
aouthdr_int->o_toc = bfd_h_get_32(abfd, aouthdr_ext->o_toc); |
||||
|
aouthdr_int->o_snentry = bfd_h_get_16(abfd, aouthdr_ext->o_snentry); |
||||
|
aouthdr_int->o_sntext = bfd_h_get_16(abfd, aouthdr_ext->o_sntext); |
||||
|
aouthdr_int->o_sndata = bfd_h_get_16(abfd, aouthdr_ext->o_sndata); |
||||
|
aouthdr_int->o_sntoc = bfd_h_get_16(abfd, aouthdr_ext->o_sntoc); |
||||
|
aouthdr_int->o_snloader = bfd_h_get_16(abfd, aouthdr_ext->o_snloader); |
||||
|
aouthdr_int->o_snbss = bfd_h_get_16(abfd, aouthdr_ext->o_snbss); |
||||
|
aouthdr_int->o_algntext = bfd_h_get_16(abfd, aouthdr_ext->o_algntext); |
||||
|
aouthdr_int->o_algndata = bfd_h_get_16(abfd, aouthdr_ext->o_algndata); |
||||
|
aouthdr_int->o_modtype = bfd_h_get_16(abfd, aouthdr_ext->o_modtype); |
||||
|
aouthdr_int->o_maxstack = bfd_h_get_32(abfd, aouthdr_ext->o_maxstack); |
||||
|
#endif |
||||
|
} |
||||
|
|
||||
|
static unsigned int |
||||
|
DEFUN(coff_swap_aouthdr_out,(abfd, in, out), |
||||
|
bfd *abfd AND |
||||
|
PTR in AND |
||||
|
PTR out) |
||||
|
{ |
||||
|
struct internal_aouthdr *aouthdr_in = (struct internal_aouthdr *)in; |
||||
|
AOUTHDR *aouthdr_out = (AOUTHDR *)out; |
||||
|
bfd_h_put_16(abfd, aouthdr_in->magic, (bfd_byte *) aouthdr_out->magic); |
||||
|
bfd_h_put_16(abfd, aouthdr_in->vstamp, (bfd_byte *) aouthdr_out->vstamp); |
||||
|
bfd_h_put_32(abfd, aouthdr_in->tsize, (bfd_byte *) aouthdr_out->tsize); |
||||
|
bfd_h_put_32(abfd, aouthdr_in->dsize, (bfd_byte *) aouthdr_out->dsize); |
||||
|
bfd_h_put_32(abfd, aouthdr_in->bsize, (bfd_byte *) aouthdr_out->bsize); |
||||
|
bfd_h_put_32(abfd, aouthdr_in->entry, (bfd_byte *) aouthdr_out->entry); |
||||
|
bfd_h_put_32(abfd, aouthdr_in->text_start, |
||||
|
(bfd_byte *) aouthdr_out->text_start); |
||||
|
bfd_h_put_32(abfd, aouthdr_in->data_start, (bfd_byte *) aouthdr_out->data_start); |
||||
|
#ifdef I960 |
||||
|
bfd_h_put_32(abfd, aouthdr_in->tagentries, (bfd_byte *) aouthdr_out->tagentries); |
||||
|
#endif |
||||
|
return sizeof(AOUTHDR); |
||||
|
} |
||||
|
|
||||
|
static void |
||||
|
DEFUN(coff_swap_scnhdr_in,(abfd, ext, in), |
||||
|
bfd *abfd AND |
||||
|
PTR ext AND |
||||
|
PTR in) |
||||
|
{ |
||||
|
SCNHDR *scnhdr_ext = (SCNHDR *) ext; |
||||
|
struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in; |
||||
|
memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof(scnhdr_int->s_name)); |
||||
|
scnhdr_int->s_vaddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_vaddr); |
||||
|
scnhdr_int->s_paddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_paddr); |
||||
|
scnhdr_int->s_size = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_size); |
||||
|
|
||||
|
scnhdr_int->s_scnptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_scnptr); |
||||
|
scnhdr_int->s_relptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_relptr); |
||||
|
scnhdr_int->s_lnnoptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_lnnoptr); |
||||
|
scnhdr_int->s_flags = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_flags); |
||||
|
#if defined(M88) |
||||
|
scnhdr_int->s_nreloc = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nreloc); |
||||
|
scnhdr_int->s_nlnno = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nlnno); |
||||
|
#else |
||||
|
scnhdr_int->s_nreloc = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nreloc); |
||||
|
scnhdr_int->s_nlnno = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nlnno); |
||||
|
#endif |
||||
|
#ifdef I960 |
||||
|
scnhdr_int->s_align = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_align); |
||||
|
#endif |
||||
|
} |
||||
|
|
||||
|
static unsigned int |
||||
|
DEFUN(coff_swap_scnhdr_out,(abfd, in, out), |
||||
|
bfd *abfd AND |
||||
|
PTR in AND |
||||
|
PTR out) |
||||
|
{ |
||||
|
struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *)in; |
||||
|
SCNHDR *scnhdr_ext = (SCNHDR *)out; |
||||
|
memcpy(scnhdr_ext->s_name, scnhdr_int->s_name, sizeof(scnhdr_int->s_name)); |
||||
|
PUTWORD(abfd, scnhdr_int->s_vaddr, (bfd_byte *) scnhdr_ext->s_vaddr); |
||||
|
PUTWORD(abfd, scnhdr_int->s_paddr, (bfd_byte *) scnhdr_ext->s_paddr); |
||||
|
PUTWORD(abfd, scnhdr_int->s_size, (bfd_byte *) scnhdr_ext->s_size); |
||||
|
PUTWORD(abfd, scnhdr_int->s_scnptr, (bfd_byte *) scnhdr_ext->s_scnptr); |
||||
|
PUTWORD(abfd, scnhdr_int->s_relptr, (bfd_byte *) scnhdr_ext->s_relptr); |
||||
|
PUTWORD(abfd, scnhdr_int->s_lnnoptr, (bfd_byte *) scnhdr_ext->s_lnnoptr); |
||||
|
PUTWORD(abfd, scnhdr_int->s_flags, (bfd_byte *) scnhdr_ext->s_flags); |
||||
|
#if defined(M88) |
||||
|
PUTWORD(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno); |
||||
|
PUTWORD(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc); |
||||
|
#else |
||||
|
PUTHALF(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno); |
||||
|
PUTHALF(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc); |
||||
|
#endif |
||||
|
|
||||
|
#if defined(I960) |
||||
|
PUTWORD(abfd, scnhdr_int->s_align, (bfd_byte *) scnhdr_ext->s_align); |
||||
|
#endif |
||||
|
return sizeof(SCNHDR); |
||||
|
} |
||||
@ -0,0 +1,112 @@ |
|||||
|
/* BFD COFF object file private structure.
|
||||
|
Copyright (C) 1990-1991 Free Software Foundation, Inc. |
||||
|
Written by Cygnus Support. |
||||
|
|
||||
|
This file is part of BFD, the Binary File Descriptor library. |
||||
|
|
||||
|
This program is free software; you can redistribute it and/or modify |
||||
|
it under the terms of the GNU General Public License as published by |
||||
|
the Free Software Foundation; either version 2 of the License, or |
||||
|
(at your option) any later version. |
||||
|
|
||||
|
This program is distributed in the hope that it will be useful, |
||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
|
GNU General Public License for more details. |
||||
|
|
||||
|
You should have received a copy of the GNU General Public License |
||||
|
along with this program; if not, write to the Free Software |
||||
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
||||
|
|
||||
|
|
||||
|
/* Object file tdata; access macros */ |
||||
|
|
||||
|
#define coff_data(bfd) ((bfd)->tdata.coff_obj_data) |
||||
|
#define exec_hdr(bfd) (coff_data(bfd)->hdr) |
||||
|
#define obj_symbols(bfd) (coff_data(bfd)->symbols) |
||||
|
#define obj_sym_filepos(bfd) (coff_data(bfd)->sym_filepos) |
||||
|
|
||||
|
#define obj_relocbase(bfd) (coff_data(bfd)->relocbase) |
||||
|
#define obj_raw_syments(bfd) (coff_data(bfd)->raw_syments) |
||||
|
#define obj_convert(bfd) (coff_data(bfd)->conversion_table) |
||||
|
#define obj_conv_table_size(bfd) (coff_data(bfd)->conv_table_size) |
||||
|
#if CFILE_STUFF |
||||
|
#define obj_symbol_slew(bfd) (coff_data(bfd)->symbol_index_slew) |
||||
|
#else |
||||
|
#define obj_symbol_slew(bfd) 0 |
||||
|
#endif |
||||
|
|
||||
|
|
||||
|
/* `Tdata' information kept for COFF files. */ |
||||
|
|
||||
|
typedef struct coff_tdata |
||||
|
{ |
||||
|
struct coff_symbol_struct *symbols; /* symtab for input bfd */ |
||||
|
unsigned int *conversion_table; |
||||
|
int conv_table_size; |
||||
|
file_ptr sym_filepos; |
||||
|
|
||||
|
long symbol_index_slew; /* used during read to mark whether a
|
||||
|
C_FILE symbol as been added. */ |
||||
|
|
||||
|
struct coff_ptr_struct *raw_syments; |
||||
|
struct lineno *raw_linenos; |
||||
|
unsigned int raw_syment_count; |
||||
|
unsigned short flags; |
||||
|
|
||||
|
/* These are only valid once writing has begun */ |
||||
|
long int relocbase; |
||||
|
|
||||
|
/* These members communicate important constants about the symbol table
|
||||
|
to GDB's symbol-reading code. These `constants' unfortunately vary |
||||
|
from coff implementation to implementation... */ |
||||
|
unsigned local_n_btmask; |
||||
|
unsigned local_n_btshft; |
||||
|
unsigned local_n_tmask; |
||||
|
unsigned local_n_tshift; |
||||
|
unsigned local_symesz; |
||||
|
unsigned local_auxesz; |
||||
|
unsigned local_linesz; |
||||
|
} coff_data_type; |
||||
|
|
||||
|
/* We take the address of the first element of a asymbol to ensure that the
|
||||
|
* macro is only ever applied to an asymbol. */ |
||||
|
#define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd))) |
||||
|
|
||||
|
/* Functions in coffgen.c. */ |
||||
|
extern bfd_target *coff_object_p PARAMS ((bfd *)); |
||||
|
extern struct sec *coff_section_from_bfd_index PARAMS ((bfd *, int)); |
||||
|
extern unsigned int coff_get_symtab_upper_bound PARAMS ((bfd *)); |
||||
|
extern unsigned int coff_get_symtab PARAMS ((bfd *, asymbol **)); |
||||
|
extern void coff_count_linenumbers PARAMS ((bfd *)); |
||||
|
extern struct coff_symbol_struct *coff_symbol_from PARAMS ((bfd *, asymbol *)); |
||||
|
extern void coff_renumber_symbols PARAMS ((bfd *)); |
||||
|
extern void coff_mangle_symbols PARAMS ((bfd *)); |
||||
|
extern void coff_write_symbols PARAMS ((bfd *)); |
||||
|
extern void coff_write_linenumbers PARAMS ((bfd *)); |
||||
|
extern alent *coff_get_lineno PARAMS ((bfd *, asymbol *)); |
||||
|
extern asymbol *coff_section_symbol PARAMS ((bfd *, char *)); |
||||
|
extern struct coff_ptr_struct *coff_get_normalized_symtab PARAMS ((bfd *)); |
||||
|
extern unsigned int coff_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr)); |
||||
|
extern asymbol *coff_make_empty_symbol PARAMS ((bfd *)); |
||||
|
extern void coff_print_symbol PARAMS ((bfd *, PTR filep, asymbol *, |
||||
|
bfd_print_symbol_type how)); |
||||
|
extern asymbol *coff_make_debug_symbol PARAMS ((bfd *, PTR, unsigned long)); |
||||
|
extern boolean coff_find_nearest_line PARAMS ((bfd *, |
||||
|
asection *, |
||||
|
asymbol **, |
||||
|
bfd_vma offset, |
||||
|
CONST char **filename_ptr, |
||||
|
CONST char **functionname_ptr, |
||||
|
unsigned int *line_ptr)); |
||||
|
extern int coff_sizeof_headers PARAMS ((bfd *, boolean reloc)); |
||||
|
extern boolean bfd_coff_reloc16_relax_section PARAMS ((bfd *, |
||||
|
asection *, |
||||
|
asymbol **)); |
||||
|
extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents |
||||
|
PARAMS ((bfd *, bfd_seclet_type *, bfd_byte *)); |
||||
|
extern bfd_vma bfd_coff_reloc16_get_value PARAMS ((arelent *, |
||||
|
bfd_seclet_type *)); |
||||
|
|
||||
|
/* And more taken from the source .. */ |
||||
|
|
||||
@ -0,0 +1,409 @@ |
|||||
|
/* 8 and 16 bit COFF relocation functions, for BFD.
|
||||
|
Copyright 1990, 1991, 1992 Free Software Foundation, Inc. |
||||
|
Written by Cygnus Support. |
||||
|
|
||||
|
This file is part of BFD, the Binary File Descriptor library. |
||||
|
|
||||
|
This program is free software; you can redistribute it and/or modify |
||||
|
it under the terms of the GNU General Public License as published by |
||||
|
the Free Software Foundation; either version 2 of the License, or |
||||
|
(at your option) any later version. |
||||
|
|
||||
|
This program is distributed in the hope that it will be useful, |
||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
|
GNU General Public License for more details. |
||||
|
|
||||
|
You should have received a copy of the GNU General Public License |
||||
|
along with this program; if not, write to the Free Software |
||||
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
||||
|
|
||||
|
/*
|
||||
|
Most of this hacked by Steve Chamberlain, |
||||
|
sac@cygnus.com |
||||
|
*/ |
||||
|
|
||||
|
/* These routines are used by coff-h8300 and coff-z8k to do
|
||||
|
relocation. */ |
||||
|
|
||||
|
#include "bfd.h" |
||||
|
#include "sysdep.h" |
||||
|
#include "libbfd.h" |
||||
|
#include "seclet.h" |
||||
|
#include "obstack.h" |
||||
|
#include "coff/internal.h" |
||||
|
#include "libcoff.h" |
||||
|
|
||||
|
extern bfd_error_vector_type bfd_error_vector; |
||||
|
|
||||
|
bfd_vma |
||||
|
DEFUN(bfd_coff_reloc16_get_value,(reloc, seclet), |
||||
|
arelent *reloc AND |
||||
|
bfd_seclet_type *seclet) |
||||
|
{ |
||||
|
bfd_vma value; |
||||
|
asymbol *symbol = *(reloc->sym_ptr_ptr); |
||||
|
/* A symbol holds a pointer to a section, and an offset from the
|
||||
|
base of the section. To relocate, we find where the section will |
||||
|
live in the output and add that in */ |
||||
|
|
||||
|
if (symbol->section == &bfd_und_section) |
||||
|
{ |
||||
|
/* Ouch, this is an undefined symbol.. */ |
||||
|
bfd_error_vector.undefined_symbol(reloc, seclet); |
||||
|
value = symbol->value; |
||||
|
} |
||||
|
else |
||||
|
{ |
||||
|
value = symbol->value + |
||||
|
symbol->section->output_offset + |
||||
|
symbol->section->output_section->vma; |
||||
|
} |
||||
|
|
||||
|
|
||||
|
/* Add the value contained in the relocation */ |
||||
|
value += reloc->addend; |
||||
|
|
||||
|
return value; |
||||
|
} |
||||
|
|
||||
|
static void |
||||
|
DEFUN(perform_slip,(s, slip, input_section, value), |
||||
|
asymbol **s AND |
||||
|
unsigned int slip AND |
||||
|
asection *input_section AND |
||||
|
bfd_vma value) |
||||
|
{ |
||||
|
|
||||
|
/* Find all symbols past this point, and make them know
|
||||
|
what's happened */ |
||||
|
while (*s) |
||||
|
{ |
||||
|
asymbol *p = *s; |
||||
|
if (p->section == input_section) |
||||
|
{ |
||||
|
/* This was pointing into this section, so mangle it */ |
||||
|
if (p->value > value) |
||||
|
{ |
||||
|
p->value -= slip; |
||||
|
} |
||||
|
} |
||||
|
s++; |
||||
|
|
||||
|
} |
||||
|
} |
||||
|
static int |
||||
|
DEFUN(movb1,(input_section, symbols, r, shrink), |
||||
|
asection *input_section AND |
||||
|
asymbol **symbols AND |
||||
|
arelent *r AND |
||||
|
unsigned int shrink) |
||||
|
{ |
||||
|
bfd_vma value = bfd_coff_reloc16_get_value(r,0); |
||||
|
|
||||
|
if (value >= 0xff00) |
||||
|
{ |
||||
|
|
||||
|
/* Change the reloc type from 16bit, possible 8 to 8bit
|
||||
|
possible 16 */ |
||||
|
r->howto = r->howto + 1; |
||||
|
/* The place to relc moves back by one */ |
||||
|
r->address -=1; |
||||
|
|
||||
|
/* This will be two bytes smaller in the long run */ |
||||
|
shrink +=2 ; |
||||
|
perform_slip(symbols, 2, input_section, r->address - shrink +1); |
||||
|
|
||||
|
|
||||
|
} |
||||
|
return shrink; |
||||
|
} |
||||
|
|
||||
|
static int |
||||
|
DEFUN(jmp1,(input_section, symbols, r, shrink), |
||||
|
asection *input_section AND |
||||
|
asymbol **symbols AND |
||||
|
arelent *r AND |
||||
|
unsigned int shrink) |
||||
|
{ |
||||
|
|
||||
|
|
||||
|
bfd_vma value = bfd_coff_reloc16_get_value(r, 0); |
||||
|
|
||||
|
bfd_vma dot = input_section->output_section->vma + |
||||
|
input_section->output_offset + r->address; |
||||
|
bfd_vma gap; |
||||
|
|
||||
|
/* See if the address we're looking at within 127 bytes of where
|
||||
|
we are, if so then we can use a small branch rather than the |
||||
|
jump we were going to */ |
||||
|
|
||||
|
gap = value - (dot - shrink); |
||||
|
|
||||
|
|
||||
|
if (-120 < (long)gap && (long)gap < 120 ) |
||||
|
{ |
||||
|
|
||||
|
/* Change the reloc type from 16bit, possible 8 to 8bit
|
||||
|
possible 16 */ |
||||
|
r->howto = r->howto + 1; |
||||
|
/* The place to relc moves back by one */ |
||||
|
r->address -=1; |
||||
|
|
||||
|
/* This will be two bytes smaller in the long run */ |
||||
|
shrink +=2 ; |
||||
|
perform_slip(symbols, 2, input_section, r->address-shrink +1); |
||||
|
|
||||
|
|
||||
|
} |
||||
|
return shrink; |
||||
|
} |
||||
|
|
||||
|
boolean |
||||
|
DEFUN(bfd_coff_reloc16_relax_section,(abfd, i, symbols), |
||||
|
bfd *abfd AND |
||||
|
asection *i AND |
||||
|
asymbol **symbols) |
||||
|
{ |
||||
|
|
||||
|
/* Get enough memory to hold the stuff */ |
||||
|
bfd *input_bfd = i->owner; |
||||
|
asection *input_section = i; |
||||
|
int shrink = 0 ; |
||||
|
boolean new = false; |
||||
|
|
||||
|
bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd, |
||||
|
input_section); |
||||
|
arelent **reloc_vector = (arelent **)bfd_xmalloc(reloc_size); |
||||
|
|
||||
|
/* Get the relocs and think about them */ |
||||
|
if (bfd_canonicalize_reloc(input_bfd, |
||||
|
input_section, |
||||
|
reloc_vector, |
||||
|
symbols)) |
||||
|
{ |
||||
|
arelent **parent; |
||||
|
for (parent = reloc_vector; *parent; parent++) |
||||
|
{ |
||||
|
arelent *r = *parent; |
||||
|
switch (r->howto->type) { |
||||
|
case R_MOVB2: |
||||
|
case R_JMP2: |
||||
|
|
||||
|
shrink+=2; |
||||
|
break; |
||||
|
|
||||
|
case R_MOVB1: |
||||
|
shrink = movb1(input_section, symbols, r, shrink); |
||||
|
new = true; |
||||
|
|
||||
|
break; |
||||
|
case R_JMP1: |
||||
|
shrink = jmp1(input_section, symbols, r, shrink); |
||||
|
new = true; |
||||
|
|
||||
|
break; |
||||
|
} |
||||
|
} |
||||
|
|
||||
|
} |
||||
|
input_section->_cooked_size -= shrink; |
||||
|
free((char *)reloc_vector); |
||||
|
return new; |
||||
|
} |
||||
|
|
||||
|
bfd_byte * |
||||
|
DEFUN(bfd_coff_reloc16_get_relocated_section_contents,(in_abfd, seclet, data), |
||||
|
bfd *in_abfd AND |
||||
|
bfd_seclet_type *seclet AND |
||||
|
bfd_byte *data) |
||||
|
|
||||
|
{ |
||||
|
/* Get enough memory to hold the stuff */ |
||||
|
bfd *input_bfd = seclet->u.indirect.section->owner; |
||||
|
asection *input_section = seclet->u.indirect.section; |
||||
|
bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd, |
||||
|
input_section); |
||||
|
arelent **reloc_vector = (arelent **)bfd_xmalloc(reloc_size); |
||||
|
|
||||
|
/* read in the section */ |
||||
|
bfd_get_section_contents(input_bfd, |
||||
|
input_section, |
||||
|
data, |
||||
|
0, |
||||
|
input_section->_raw_size); |
||||
|
|
||||
|
|
||||
|
if (bfd_canonicalize_reloc(input_bfd, |
||||
|
input_section, |
||||
|
reloc_vector, |
||||
|
seclet->u.indirect.symbols) ) |
||||
|
{ |
||||
|
arelent **parent = reloc_vector; |
||||
|
arelent *reloc ; |
||||
|
|
||||
|
|
||||
|
|
||||
|
unsigned int dst_address = 0; |
||||
|
unsigned int src_address = 0; |
||||
|
unsigned int run; |
||||
|
unsigned int idx; |
||||
|
|
||||
|
/* Find how long a run we can do */ |
||||
|
while (dst_address < seclet->size) |
||||
|
{ |
||||
|
|
||||
|
reloc = *parent; |
||||
|
if (reloc) |
||||
|
{ |
||||
|
/* Note that the relaxing didn't tie up the addresses in the
|
||||
|
relocation, so we use the original address to work out the |
||||
|
run of non-relocated data */ |
||||
|
run = reloc->address - src_address; |
||||
|
parent++; |
||||
|
|
||||
|
} |
||||
|
else |
||||
|
{ |
||||
|
run = seclet->size - dst_address; |
||||
|
} |
||||
|
/* Copy the bytes */ |
||||
|
for (idx = 0; idx < run; idx++) |
||||
|
{ |
||||
|
data[dst_address++] = data[src_address++]; |
||||
|
} |
||||
|
|
||||
|
/* Now do the relocation */ |
||||
|
|
||||
|
if (reloc) |
||||
|
{ |
||||
|
switch (reloc->howto->type) |
||||
|
{ |
||||
|
case R_JMP2: |
||||
|
/* Speciial relaxed type */ |
||||
|
{ |
||||
|
bfd_vma dot = seclet->offset + dst_address + seclet->u.indirect.section->output_section->vma; |
||||
|
int gap = bfd_coff_reloc16_get_value(reloc,seclet)-dot-1; |
||||
|
if ((gap & ~0xff ) != 0 &&((gap & 0xff00)!= 0xff00)) abort(); |
||||
|
|
||||
|
bfd_put_8(in_abfd,gap, data+dst_address); |
||||
|
|
||||
|
switch (data[dst_address-1]) |
||||
|
{ |
||||
|
|
||||
|
case 0x5e: |
||||
|
/* jsr -> bsr */ |
||||
|
bfd_put_8(in_abfd, 0x55, data+dst_address-1); |
||||
|
break; |
||||
|
case 0x5a: |
||||
|
/* jmp ->bra */ |
||||
|
bfd_put_8(in_abfd, 0x40, data+dst_address-1); |
||||
|
break; |
||||
|
|
||||
|
default: |
||||
|
abort(); |
||||
|
|
||||
|
} |
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
dst_address++; |
||||
|
src_address+=3; |
||||
|
|
||||
|
break; |
||||
|
} |
||||
|
|
||||
|
|
||||
|
case R_MOVB2: |
||||
|
/* Special relaxed type, there will be a gap between where we
|
||||
|
get stuff from and where we put stuff to now |
||||
|
|
||||
|
for a mov.b @aa:16 -> mov.b @aa:8 |
||||
|
opcode 0x6a 0x0y offset |
||||
|
-> 0x2y off |
||||
|
*/ |
||||
|
if (data[dst_address-1] != 0x6a) |
||||
|
abort(); |
||||
|
switch (data[src_address] & 0xf0) |
||||
|
{ |
||||
|
case 0x00: |
||||
|
/* Src is memory */ |
||||
|
data[dst_address-1] = (data[src_address] & 0xf) | 0x20; |
||||
|
break; |
||||
|
case 0x80: |
||||
|
/* Src is reg */ |
||||
|
data[dst_address-1] = (data[src_address] & 0xf) | 0x30; |
||||
|
break; |
||||
|
default: |
||||
|
abort(); |
||||
|
} |
||||
|
|
||||
|
/* the offset must fit ! after all, what was all the relaxing
|
||||
|
about ? */ |
||||
|
|
||||
|
bfd_put_8(in_abfd, bfd_coff_reloc16_get_value(reloc, seclet), |
||||
|
data + dst_address); |
||||
|
|
||||
|
/* Note the magic - src goes up by two bytes, but dst by only
|
||||
|
one */ |
||||
|
dst_address+=1; |
||||
|
src_address+=3; |
||||
|
|
||||
|
break; |
||||
|
/* PCrel 8 bits */ |
||||
|
case R_PCRBYTE: |
||||
|
{ |
||||
|
bfd_vma dot = seclet->offset + dst_address + seclet->u.indirect.section->output_section->vma; |
||||
|
int gap = bfd_coff_reloc16_get_value(reloc,seclet)-dot; |
||||
|
if (gap > 127 || gap < -128) |
||||
|
{ |
||||
|
bfd_error_vector.reloc_value_truncated(reloc, seclet); |
||||
|
} |
||||
|
|
||||
|
bfd_put_8(in_abfd,gap, data+dst_address); |
||||
|
dst_address++; |
||||
|
src_address++; |
||||
|
|
||||
|
break; |
||||
|
} |
||||
|
|
||||
|
case R_RELBYTE: |
||||
|
{ |
||||
|
unsigned int gap =bfd_coff_reloc16_get_value(reloc,seclet); |
||||
|
if (gap > 0xff && gap < ~0xff) |
||||
|
{ |
||||
|
bfd_error_vector.reloc_value_truncated(reloc, seclet); |
||||
|
} |
||||
|
|
||||
|
bfd_put_8(in_abfd, gap, data+dst_address); |
||||
|
dst_address+=1; |
||||
|
src_address+=1; |
||||
|
|
||||
|
|
||||
|
} |
||||
|
break; |
||||
|
case R_JMP1: |
||||
|
/* A relword which would have like to have been a pcrel */ |
||||
|
case R_MOVB1: |
||||
|
/* A relword which would like to have been modified but
|
||||
|
didn't make it */ |
||||
|
case R_RELWORD: |
||||
|
bfd_put_16(in_abfd, bfd_coff_reloc16_get_value(reloc,seclet), |
||||
|
data+dst_address); |
||||
|
dst_address+=2; |
||||
|
src_address+=2; |
||||
|
break; |
||||
|
default: |
||||
|
bfd_coff_reloc16_extra_cases (in_abfd, seclet, reloc, data, |
||||
|
&src_address, &dst_address); |
||||
|
break; |
||||
|
} |
||||
|
} |
||||
|
} |
||||
|
} |
||||
|
free((char *)reloc_vector); |
||||
|
return data; |
||||
|
|
||||
|
} |
||||
|
|
||||
Loading…
Reference in new issue