/* BFD back-end for Intel 960 b.out binaries.
- Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ Free Software Foundation, Inc.
Written by Cygnus Support.
-This file is part of BFD, the Binary File Descriptor library.
+ 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 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 3 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.
+ 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. */
+ 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., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
-#include "seclet.h"
+#include "bfdlink.h"
+#include "genlink.h"
#include "bout.h"
+#include "libiberty.h"
#include "aout/stab_gnu.h"
-#include "libaout.h" /* BFD a.out internal data structures */
+#include "libaout.h" /* BFD a.out internal data structures. */
+
+#define ABS32CODE 0
+#define ABS32CODE_SHRUNK 1
+#define PCREL24 2
+#define CALLJ 3
+#define ABS32 4
+#define PCREL13 5
+#define ABS32_MAYBE_RELAXABLE 1
+#define ABS32_WAS_RELAXABLE 2
+
+#define ALIGNER 10
+#define ALIGNDONE 11
+static reloc_howto_type howto_reloc_callj =
+ HOWTO (CALLJ, 0, 2, 24, TRUE, 0, complain_overflow_signed, 0,"callj", TRUE, 0x00ffffff, 0x00ffffff,FALSE);
+static reloc_howto_type howto_reloc_abs32 =
+ HOWTO (ABS32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,0,"abs32", TRUE, 0xffffffff,0xffffffff,FALSE);
+static reloc_howto_type howto_reloc_pcrel24 =
+ HOWTO (PCREL24, 0, 2, 24, TRUE, 0, complain_overflow_signed,0,"pcrel24", TRUE, 0x00ffffff,0x00ffffff,FALSE);
+static reloc_howto_type howto_reloc_pcrel13 =
+ HOWTO (PCREL13, 0, 2, 13, TRUE, 0, complain_overflow_signed,0,"pcrel13", TRUE, 0x00001fff,0x00001fff,FALSE);
+static reloc_howto_type howto_reloc_abs32codeshrunk =
+ HOWTO (ABS32CODE_SHRUNK, 0, 2, 24, TRUE, 0, complain_overflow_signed, 0,"callx->callj", TRUE, 0x00ffffff, 0x00ffffff,FALSE);
+static reloc_howto_type howto_reloc_abs32code =
+ HOWTO (ABS32CODE, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,0,"callx", TRUE, 0xffffffff,0xffffffff,FALSE);
-extern bfd_error_vector_type bfd_error_vector;
-PROTO (static boolean, b_out_squirt_out_relocs,(bfd *abfd, asection *section));
-PROTO (static bfd_target *, b_out_callback, (bfd *));
+static reloc_howto_type howto_align_table[] =
+{
+ HOWTO (ALIGNER, 0, 0x1, 0, FALSE, 0, complain_overflow_dont, 0, "align16", FALSE, 0, 0, FALSE),
+ HOWTO (ALIGNER, 0, 0x3, 0, FALSE, 0, complain_overflow_dont, 0, "align32", FALSE, 0, 0, FALSE),
+ HOWTO (ALIGNER, 0, 0x7, 0, FALSE, 0, complain_overflow_dont, 0, "align64", FALSE, 0, 0, FALSE),
+ HOWTO (ALIGNER, 0, 0xf, 0, FALSE, 0, complain_overflow_dont, 0, "align128", FALSE, 0, 0, FALSE),
+};
-PROTO (boolean, aout_32_slurp_symbol_table, (bfd *abfd));
-PROTO (void , aout_32_write_syms, ());
+static reloc_howto_type howto_done_align_table[] =
+{
+ HOWTO (ALIGNDONE, 0x1, 0x1, 0, FALSE, 0, complain_overflow_dont, 0, "donealign16", FALSE, 0, 0, FALSE),
+ HOWTO (ALIGNDONE, 0x3, 0x3, 0, FALSE, 0, complain_overflow_dont, 0, "donealign32", FALSE, 0, 0, FALSE),
+ HOWTO (ALIGNDONE, 0x7, 0x7, 0, FALSE, 0, complain_overflow_dont, 0, "donealign64", FALSE, 0, 0, FALSE),
+ HOWTO (ALIGNDONE, 0xf, 0xf, 0, FALSE, 0, complain_overflow_dont, 0, "donealign128", FALSE, 0, 0, FALSE),
+};
/* Swaps the information in an executable header taken from a raw byte
stream memory image, into the internal exec_header structure. */
-PROTO(void, bout_swap_exec_header_in,
- (bfd *abfd,
- struct external_exec *raw_bytes,
- struct internal_exec *execp));
-
-void
-DEFUN(bout_swap_exec_header_in,(abfd, raw_bytes, execp),
- bfd *abfd AND
- struct external_exec *raw_bytes AND
- struct internal_exec *execp)
+static void
+bout_swap_exec_header_in (bfd *abfd,
+ struct external_exec *bytes,
+ struct internal_exec *execp)
{
- struct external_exec *bytes = (struct external_exec *)raw_bytes;
-
/* Now fill in fields in the execp, from the bytes in the raw data. */
- execp->a_info = bfd_h_get_32 (abfd, bytes->e_info);
- execp->a_text = GET_WORD (abfd, bytes->e_text);
- execp->a_data = GET_WORD (abfd, bytes->e_data);
- execp->a_bss = GET_WORD (abfd, bytes->e_bss);
- execp->a_syms = GET_WORD (abfd, bytes->e_syms);
- execp->a_entry = GET_WORD (abfd, bytes->e_entry);
- execp->a_trsize = GET_WORD (abfd, bytes->e_trsize);
- execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
- execp->a_tload = GET_WORD (abfd, bytes->e_tload);
- execp->a_dload = GET_WORD (abfd, bytes->e_dload);
- execp->a_talign = bytes->e_talign[0];
- execp->a_dalign = bytes->e_dalign[0];
- execp->a_balign = bytes->e_balign[0];
+ execp->a_info = H_GET_32 (abfd, bytes->e_info);
+ execp->a_text = GET_WORD (abfd, bytes->e_text);
+ execp->a_data = GET_WORD (abfd, bytes->e_data);
+ execp->a_bss = GET_WORD (abfd, bytes->e_bss);
+ execp->a_syms = GET_WORD (abfd, bytes->e_syms);
+ execp->a_entry = GET_WORD (abfd, bytes->e_entry);
+ execp->a_trsize = GET_WORD (abfd, bytes->e_trsize);
+ execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
+ execp->a_tload = GET_WORD (abfd, bytes->e_tload);
+ execp->a_dload = GET_WORD (abfd, bytes->e_dload);
+ execp->a_talign = bytes->e_talign[0];
+ execp->a_dalign = bytes->e_dalign[0];
+ execp->a_balign = bytes->e_balign[0];
execp->a_relaxable = bytes->e_relaxable[0];
}
/* Swaps the information in an internal exec header structure into the
supplied buffer ready for writing to disk. */
-PROTO(void, bout_swap_exec_header_out,
- (bfd *abfd,
- struct internal_exec *execp,
- struct external_exec *raw_bytes));
-void
-DEFUN(bout_swap_exec_header_out,(abfd, execp, raw_bytes),
- bfd *abfd AND
- struct internal_exec *execp AND
- struct external_exec *raw_bytes)
+static void
+bout_swap_exec_header_out (bfd *abfd,
+ struct internal_exec *execp,
+ struct external_exec *bytes)
{
- struct external_exec *bytes = (struct external_exec *)raw_bytes;
-
- /* Now fill in fields in the raw data, from the fields in the exec struct. */
- bfd_h_put_32 (abfd, execp->a_info , bytes->e_info);
+ /* Now fill in fields in the raw data, from the fields in the exec struct. */
+ H_PUT_32 (abfd, execp->a_info , bytes->e_info);
PUT_WORD (abfd, execp->a_text , bytes->e_text);
PUT_WORD (abfd, execp->a_data , bytes->e_data);
PUT_WORD (abfd, execp->a_bss , bytes->e_bss);
PUT_WORD (abfd, execp->a_drsize, bytes->e_drsize);
PUT_WORD (abfd, execp->a_tload , bytes->e_tload);
PUT_WORD (abfd, execp->a_dload , bytes->e_dload);
- bytes->e_talign[0] = execp->a_talign;
- bytes->e_dalign[0] = execp->a_dalign;
- bytes->e_balign[0] = execp->a_balign;
+ bytes->e_talign[0] = execp->a_talign;
+ bytes->e_dalign[0] = execp->a_dalign;
+ bytes->e_balign[0] = execp->a_balign;
bytes->e_relaxable[0] = execp->a_relaxable;
}
-
-static bfd_target *
-b_out_object_p (abfd)
- bfd *abfd;
-{
- struct internal_exec anexec;
- struct external_exec exec_bytes;
-
- if (bfd_read ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd)
- != EXEC_BYTES_SIZE) {
- bfd_error = wrong_format;
- return 0;
- }
-
- anexec.a_info = bfd_h_get_32 (abfd, exec_bytes.e_info);
-
- if (N_BADMAG (anexec)) {
- bfd_error = wrong_format;
- return 0;
- }
-
- bout_swap_exec_header_in (abfd, &exec_bytes, &anexec);
- return aout_32_some_aout_object_p (abfd, &anexec, b_out_callback);
-}
-
-
/* Finish up the opening of a b.out file for reading. Fill in all the
fields that are not handled by common code. */
-static bfd_target *
-b_out_callback (abfd)
- bfd *abfd;
+static const bfd_target *
+b_out_callback (bfd *abfd)
{
struct internal_exec *execp = exec_hdr (abfd);
unsigned long bss_start;
- /* Architecture and machine type */
- bfd_set_arch_mach(abfd,
- bfd_arch_i960, /* B.out only used on i960 */
- bfd_mach_i960_core /* Default */
- );
+ /* Architecture and machine type. */
+ bfd_set_arch_mach (abfd,
+ bfd_arch_i960, /* B.out only used on i960. */
+ bfd_mach_i960_core /* Default. */
+ );
/* The positions of the string table and symbol table. */
obj_str_filepos (abfd) = N_STROFF (*execp);
obj_sym_filepos (abfd) = N_SYMOFF (*execp);
- /* The alignments of the sections */
+ /* The alignments of the sections. */
obj_textsec (abfd)->alignment_power = execp->a_talign;
obj_datasec (abfd)->alignment_power = execp->a_dalign;
obj_bsssec (abfd)->alignment_power = execp->a_balign;
obj_textsec (abfd)->vma = execp->a_tload;
obj_datasec (abfd)->vma = execp->a_dload;
- /* And reload the sizes, since the aout module zaps them */
- obj_textsec (abfd)->_raw_size = execp->a_text;
+ obj_textsec (abfd)->lma = obj_textsec (abfd)->vma;
+ obj_datasec (abfd)->lma = obj_datasec (abfd)->vma;
+
+ /* And reload the sizes, since the aout module zaps them. */
+ obj_textsec (abfd)->size = execp->a_text;
- bss_start = execp->a_dload + execp->a_data; /* BSS = end of data section */
+ bss_start = execp->a_dload + execp->a_data; /* BSS = end of data section. */
obj_bsssec (abfd)->vma = align_power (bss_start, execp->a_balign);
- /* The file positions of the sections */
- obj_textsec (abfd)->filepos = N_TXTOFF(*execp);
- obj_datasec (abfd)->filepos = N_DATOFF(*execp);
+ obj_bsssec (abfd)->lma = obj_bsssec (abfd)->vma;
- /* The file positions of the relocation info */
- obj_textsec (abfd)->rel_filepos = N_TROFF(*execp);
- obj_datasec (abfd)->rel_filepos = N_DROFF(*execp);
+ /* The file positions of the sections. */
+ obj_textsec (abfd)->filepos = N_TXTOFF (*execp);
+ obj_datasec (abfd)->filepos = N_DATOFF (*execp);
- adata(abfd).page_size = 1; /* Not applicable. */
- adata(abfd).segment_size = 1; /* Not applicable. */
- adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE;
+ /* The file positions of the relocation info. */
+ obj_textsec (abfd)->rel_filepos = N_TROFF (*execp);
+ obj_datasec (abfd)->rel_filepos = N_DROFF (*execp);
+
+ adata (abfd).page_size = 1; /* Not applicable. */
+ adata (abfd).segment_size = 1; /* Not applicable. */
+ adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
if (execp->a_relaxable)
abfd->flags |= BFD_IS_RELAXABLE;
return abfd->xvec;
}
-struct bout_data_struct {
+static const bfd_target *
+b_out_object_p (bfd *abfd)
+{
+ struct internal_exec anexec;
+ struct external_exec exec_bytes;
+ bfd_size_type amt = EXEC_BYTES_SIZE;
+
+ if (bfd_bread ((void *) &exec_bytes, amt, abfd) != amt)
+ {
+ if (bfd_get_error () != bfd_error_system_call)
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+ }
+
+ anexec.a_info = H_GET_32 (abfd, exec_bytes.e_info);
+
+ if (N_BADMAG (anexec))
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+ }
+
+ bout_swap_exec_header_in (abfd, &exec_bytes, &anexec);
+ return aout_32_some_aout_object_p (abfd, &anexec, b_out_callback);
+}
+
+struct bout_data_struct
+ {
struct aoutdata a;
struct internal_exec e;
-};
+ };
-static boolean
-b_out_mkobject (abfd)
- bfd *abfd;
+static bfd_boolean
+b_out_mkobject (bfd *abfd)
{
struct bout_data_struct *rawptr;
+ bfd_size_type amt = sizeof (struct bout_data_struct);
- rawptr = (struct bout_data_struct *) bfd_zalloc (abfd, sizeof (struct bout_data_struct));
- if (rawptr == NULL) {
- bfd_error = no_memory;
- return false;
- }
+ rawptr = bfd_zalloc (abfd, amt);
+ if (rawptr == NULL)
+ return FALSE;
abfd->tdata.bout_data = rawptr;
exec_hdr (abfd) = &rawptr->e;
- /* For simplicity's sake we just make all the sections right here. */
- obj_textsec (abfd) = (asection *)NULL;
- obj_datasec (abfd) = (asection *)NULL;
- obj_bsssec (abfd) = (asection *)NULL;
+ obj_textsec (abfd) = NULL;
+ obj_datasec (abfd) = NULL;
+ obj_bsssec (abfd) = NULL;
- bfd_make_section (abfd, ".text");
- bfd_make_section (abfd, ".data");
- bfd_make_section (abfd, ".bss");
+ return TRUE;
+}
+
+static int
+b_out_symbol_cmp (const void * a_ptr, const void * b_ptr)
+{
+ struct aout_symbol ** a = (struct aout_symbol **) a_ptr;
+ struct aout_symbol ** b = (struct aout_symbol **) b_ptr;
+ asection *sec;
+ bfd_vma av, bv;
+
+ /* Primary key is address. */
+ sec = bfd_get_section (&(*a)->symbol);
+ av = sec->output_section->vma + sec->output_offset + (*a)->symbol.value;
+ sec = bfd_get_section (&(*b)->symbol);
+ bv = sec->output_section->vma + sec->output_offset + (*b)->symbol.value;
+
+ if (av < bv)
+ return -1;
+ if (av > bv)
+ return 1;
+
+ /* Secondary key puts CALLNAME syms last and BALNAME syms first,
+ so that they have the best chance of being contiguous. */
+ if (IS_BALNAME ((*a)->other) || IS_CALLNAME ((*b)->other))
+ return -1;
+ if (IS_CALLNAME ((*a)->other) || IS_BALNAME ((*b)->other))
+ return 1;
- return true;
+ return 0;
}
-static boolean
-b_out_write_object_contents (abfd)
- bfd *abfd;
+static bfd_boolean
+b_out_squirt_out_relocs (bfd *abfd, asection *section)
+{
+ arelent **generic;
+ int r_extern = 0;
+ int r_idx;
+ int incode_mask;
+ int len_1;
+ unsigned int count = section->reloc_count;
+ struct relocation_info *native, *natptr;
+ bfd_size_type natsize;
+ int extern_mask, pcrel_mask, len_2, callj_mask;
+
+ if (count == 0)
+ return TRUE;
+
+ generic = section->orelocation;
+ natsize = (bfd_size_type) count * sizeof (struct relocation_info);
+ native = bfd_malloc (natsize);
+ if (!native && natsize != 0)
+ return FALSE;
+
+ if (bfd_header_big_endian (abfd))
+ {
+ /* Big-endian bit field allocation order. */
+ pcrel_mask = 0x80;
+ extern_mask = 0x10;
+ len_2 = 0x40;
+ len_1 = 0x20;
+ callj_mask = 0x02;
+ incode_mask = 0x08;
+ }
+ else
+ {
+ /* Little-endian bit field allocation order. */
+ pcrel_mask = 0x01;
+ extern_mask = 0x08;
+ len_2 = 0x04;
+ len_1 = 0x02;
+ callj_mask = 0x40;
+ incode_mask = 0x10;
+ }
+
+ for (natptr = native; count > 0; --count, ++natptr, ++generic)
+ {
+ arelent *g = *generic;
+ unsigned char *raw = (unsigned char *) natptr;
+ asymbol *sym = *(g->sym_ptr_ptr);
+ asection *output_section = sym->section->output_section;
+
+ H_PUT_32 (abfd, g->address, raw);
+ /* Find a type in the output format which matches the input howto -
+ at the moment we assume input format == output format FIXME!! */
+ r_idx = 0;
+ /* FIXME: Need callj stuff here, and to check the howto entries to
+ be sure they are real for this architecture. */
+ if (g->howto== &howto_reloc_callj)
+ raw[7] = callj_mask + pcrel_mask + len_2;
+ else if (g->howto == &howto_reloc_pcrel24)
+ raw[7] = pcrel_mask + len_2;
+ else if (g->howto == &howto_reloc_pcrel13)
+ raw[7] = pcrel_mask + len_1;
+ else if (g->howto == &howto_reloc_abs32code)
+ raw[7] = len_2 + incode_mask;
+ else if (g->howto >= howto_align_table
+ && g->howto <= (howto_align_table + ARRAY_SIZE (howto_align_table) - 1))
+ {
+ /* symnum == -2; extern_mask not set, pcrel_mask set. */
+ r_idx = -2;
+ r_extern = 0;
+ raw[7] = (pcrel_mask
+ | ((g->howto - howto_align_table) << 1));
+ }
+ else
+ raw[7] = len_2;
+
+ if (r_idx != 0)
+ /* Already mucked with r_extern, r_idx. */;
+ else if (bfd_is_com_section (output_section)
+ || bfd_is_abs_section (output_section)
+ || bfd_is_und_section (output_section))
+ {
+ if (bfd_abs_section_ptr->symbol == sym)
+ {
+ /* Whoops, looked like an abs symbol, but is really an offset
+ from the abs section. */
+ r_idx = 0;
+ r_extern = 0;
+ }
+ else
+ {
+ /* Fill in symbol. */
+ r_extern = 1;
+ r_idx = (*g->sym_ptr_ptr)->udata.i;
+ }
+ }
+ else
+ {
+ /* Just an ordinary section. */
+ r_extern = 0;
+ r_idx = output_section->target_index;
+ }
+
+ if (bfd_header_big_endian (abfd))
+ {
+ raw[4] = (unsigned char) (r_idx >> 16);
+ raw[5] = (unsigned char) (r_idx >> 8);
+ raw[6] = (unsigned char) (r_idx );
+ }
+ else
+ {
+ raw[6] = (unsigned char) (r_idx >> 16);
+ raw[5] = (unsigned char) (r_idx>> 8);
+ raw[4] = (unsigned char) (r_idx );
+ }
+
+ if (r_extern)
+ raw[7] |= extern_mask;
+ }
+
+ if (bfd_bwrite ((void *) native, natsize, abfd) != natsize)
+ {
+ free (native);
+ return FALSE;
+ }
+
+ free (native);
+
+ return TRUE;
+}
+
+static bfd_boolean
+b_out_write_object_contents (bfd *abfd)
{
struct external_exec swapped_hdr;
+ bfd_size_type amt;
+
+ if (! aout_32_make_sections (abfd))
+ return FALSE;
exec_hdr (abfd)->a_info = BMAGIC;
- exec_hdr (abfd)->a_text = obj_textsec (abfd)->_raw_size;
- exec_hdr (abfd)->a_data = obj_datasec (abfd)->_raw_size;
- exec_hdr (abfd)->a_bss = obj_bsssec (abfd)->_raw_size;
- exec_hdr (abfd)->a_syms = bfd_get_symcount (abfd) * sizeof (struct nlist);
+ exec_hdr (abfd)->a_text = obj_textsec (abfd)->size;
+ exec_hdr (abfd)->a_data = obj_datasec (abfd)->size;
+ exec_hdr (abfd)->a_bss = obj_bsssec (abfd)->size;
+ exec_hdr (abfd)->a_syms = bfd_get_symcount (abfd) * 12;
exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
- exec_hdr (abfd)->a_trsize = ((obj_textsec (abfd)->reloc_count) *
- sizeof (struct relocation_info));
- exec_hdr (abfd)->a_drsize = ((obj_datasec (abfd)->reloc_count) *
- sizeof (struct relocation_info));
+ exec_hdr (abfd)->a_trsize = (obj_textsec (abfd)->reloc_count) * 8;
+ exec_hdr (abfd)->a_drsize = (obj_datasec (abfd)->reloc_count) * 8;
exec_hdr (abfd)->a_talign = obj_textsec (abfd)->alignment_power;
exec_hdr (abfd)->a_dalign = obj_datasec (abfd)->alignment_power;
bout_swap_exec_header_out (abfd, exec_hdr (abfd), &swapped_hdr);
- bfd_seek (abfd, (file_ptr) 0, SEEK_SET);
- bfd_write ((PTR) &swapped_hdr, 1, EXEC_BYTES_SIZE, abfd);
+ amt = EXEC_BYTES_SIZE;
+ if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
+ || bfd_bwrite ((void *) &swapped_hdr, amt, abfd) != amt)
+ return FALSE;
/* Now write out reloc info, followed by syms and strings */
- if (bfd_get_symcount (abfd) != 0)
+ if (bfd_get_symcount (abfd) != 0)
{
- bfd_seek (abfd, (file_ptr)(N_SYMOFF(*exec_hdr(abfd))), SEEK_SET);
+ /* Make sure {CALL,BAL}NAME symbols remain adjacent on output
+ by sorting. This is complicated by the fact that stabs are
+ also ordered. Solve this by shifting all stabs to the end
+ in order, then sorting the rest. */
- aout_32_write_syms (abfd);
+ asymbol **outsyms, **p, **q;
- bfd_seek (abfd, (file_ptr)(N_TROFF(*exec_hdr(abfd))), SEEK_SET);
+ outsyms = bfd_get_outsymbols (abfd);
+ p = outsyms + bfd_get_symcount (abfd);
- if (!b_out_squirt_out_relocs (abfd, obj_textsec (abfd))) return false;
- bfd_seek (abfd, (file_ptr)(N_DROFF(*exec_hdr(abfd))), SEEK_SET);
+ for (q = p--; p >= outsyms; p--)
+ {
+ if ((*p)->flags & BSF_DEBUGGING)
+ {
+ asymbol *t = *--q;
+ *q = *p;
+ *p = t;
+ }
+ }
- if (!b_out_squirt_out_relocs (abfd, obj_datasec (abfd))) return false;
- }
- return true;
-}
-\f
-/** Some reloc hackery */
+ if (q > outsyms)
+ qsort (outsyms, (size_t) (q - outsyms), sizeof (asymbol*),
+ b_out_symbol_cmp);
-#define CALLS 0x66003800 /* Template for 'calls' instruction */
-#define BAL 0x0b000000 /* Template for 'bal' instruction */
-#define BALX 0x85000000 /* Template for 'balx' instruction */
-#define BAL_MASK 0x00ffffff
-#define CALL 0x09000000
-#define PCREL13_MASK 0x1fff
-/* Magic to turn callx into calljx */
-static bfd_reloc_status_type
-DEFUN (calljx_callback, (abfd, reloc_entry, src, dst, input_section, seclet),
- bfd *abfd AND
- arelent *reloc_entry AND
- PTR src AND
- PTR dst AND
- asection *input_section AND
- bfd_seclet_type *seclet)
-{
- int word = bfd_get_32(abfd, src);
- asymbol *symbol_in = *(reloc_entry->sym_ptr_ptr);
- aout_symbol_type *symbol = aout_symbol(symbol_in);
+ /* Back to your regularly scheduled program. */
+ if (bfd_seek (abfd, (file_ptr) (N_SYMOFF (*exec_hdr (abfd))), SEEK_SET)
+ != 0)
+ return FALSE;
- if (symbol_in->section == &bfd_und_section)
- {
- bfd_error_vector.undefined_symbol(reloc_entry, seclet);
- }
-
- if (IS_CALLNAME(symbol->other))
- {
+ if (! aout_32_write_syms (abfd))
+ return FALSE;
- aout_symbol_type *balsym = symbol+1;
- int inst = bfd_get_32(abfd, (bfd_byte *) src-4);
- /* The next symbol should be an N_BALNAME */
- BFD_ASSERT(IS_BALNAME(balsym->other));
- inst &= BAL_MASK;
- inst |= BALX;
- bfd_put_32(abfd, inst, (bfd_byte *) dst-4);
- symbol = balsym;
- }
+ if (bfd_seek (abfd, (file_ptr) (N_TROFF (*exec_hdr (abfd))), SEEK_SET)
+ != 0)
+ return FALSE;
- word += symbol->symbol.section->output_offset +
- symbol->symbol.section->output_section->vma +
- symbol->symbol.value + reloc_entry->addend;
+ if (!b_out_squirt_out_relocs (abfd, obj_textsec (abfd)))
+ return FALSE;
+ if (bfd_seek (abfd, (file_ptr) (N_DROFF (*exec_hdr (abfd))), SEEK_SET)
+ != 0)
+ return FALSE;
- bfd_put_32(abfd, word, dst);
- return bfd_reloc_ok;
+ if (!b_out_squirt_out_relocs (abfd, obj_datasec (abfd)))
+ return FALSE;
+ }
+ return TRUE;
}
+\f
+/* Some reloc hackery. */
+
+#define CALLS 0x66003800 /* Template for 'calls' instruction */
+#define BAL 0x0b000000 /* Template for 'bal' instruction */
+#define BAL_MASK 0x00ffffff
+#define BALX 0x85f00000 /* Template for 'balx' instruction */
+#define BALX_MASK 0x0007ffff
+#define CALL 0x09000000
+#define PCREL13_MASK 0x1fff
+#define output_addr(sec) ((sec)->output_offset+(sec)->output_section->vma)
-/* Magic to turn call into callj */
-static bfd_reloc_status_type
-DEFUN (callj_callback, (abfd, reloc_entry, data, srcidx,dstidx,
- input_section, seclet),
- bfd *abfd AND
- arelent *reloc_entry AND
- PTR data AND
- unsigned int srcidx AND
- unsigned int dstidx AND
- asection *input_section AND
- bfd_seclet_type *seclet)
+static bfd_vma
+get_value (arelent *reloc,
+ struct bfd_link_info *link_info,
+ asection *input_section)
{
- int word = bfd_get_32(abfd, (bfd_byte *) data + srcidx);
- asymbol *symbol_in = *(reloc_entry->sym_ptr_ptr);
-
- aout_symbol_type *symbol = aout_symbol(symbol_in);
+ bfd_vma value;
+ asymbol *symbol = *(reloc->sym_ptr_ptr);
- if (symbol_in->section == &bfd_und_section)
- {
- bfd_error_vector.undefined_symbol(reloc_entry, seclet);
- }
+ /* 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 (bfd_is_und_section (symbol->section))
+ {
+ struct bfd_link_hash_entry *h;
+
+ /* The symbol is undefined in this BFD. Look it up in the
+ global linker hash table. FIXME: This should be changed when
+ we convert b.out to use a specific final_link function and
+ change the interface to bfd_relax_section to not require the
+ generic symbols. */
+ h = bfd_wrapped_link_hash_lookup (input_section->owner, link_info,
+ bfd_asymbol_name (symbol),
+ FALSE, FALSE, TRUE);
+ if (h != (struct bfd_link_hash_entry *) NULL
+ && (h->type == bfd_link_hash_defined
+ || h->type == bfd_link_hash_defweak))
+ value = h->u.def.value + output_addr (h->u.def.section);
+ else if (h != (struct bfd_link_hash_entry *) NULL
+ && h->type == bfd_link_hash_common)
+ value = h->u.c.size;
+ else
+ {
+ if (! ((*link_info->callbacks->undefined_symbol)
+ (link_info, bfd_asymbol_name (symbol),
+ input_section->owner, input_section, reloc->address,
+ TRUE)))
+ abort ();
+ value = 0;
+ }
+ }
+ else
+ value = symbol->value + output_addr (symbol->section);
- if (IS_OTHER(symbol->other))
- {
- /* Call to a system procedure - replace code with system
- procedure number */
- word = CALLS | (symbol->other - 1);
+ /* Add the value contained in the relocation. */
+ value += reloc->addend;
- }
+ return value;
+}
- else if (IS_CALLNAME(symbol->other))
- {
- aout_symbol_type *balsym = symbol+1;
- /* The next symbol should be an N_BALNAME */
- BFD_ASSERT(IS_BALNAME(balsym->other));
+/* Magic to turn callx into calljx. */
- /* We are calling a leaf - so replace the call instruction
- with a bal */
+static bfd_reloc_status_type
+calljx_callback (bfd *abfd,
+ struct bfd_link_info *link_info,
+ arelent *reloc_entry,
+ void * src,
+ void * dst,
+ asection *input_section)
+{
+ int word = bfd_get_32 (abfd, src);
+ asymbol *symbol_in = *(reloc_entry->sym_ptr_ptr);
+ aout_symbol_type *symbol = aout_symbol (symbol_in);
+ bfd_vma value;
- word = BAL |
- (((word & BAL_MASK) +
- balsym->symbol.section->output_offset +
- balsym->symbol.section->output_section->vma+
- balsym->symbol.value + reloc_entry->addend - dstidx -
- ( input_section->output_section->vma + input_section->output_offset))
- & BAL_MASK);
+ value = get_value (reloc_entry, link_info, input_section);
+ if (IS_CALLNAME (symbol->other))
+ {
+ aout_symbol_type *balsym = symbol+1;
+ int inst = bfd_get_32 (abfd, (bfd_byte *) src-4);
+
+ /* The next symbol should be an N_BALNAME. */
+ BFD_ASSERT (IS_BALNAME (balsym->other));
+ inst &= BALX_MASK;
+ inst |= BALX;
+ bfd_put_32 (abfd, (bfd_vma) inst, (bfd_byte *) dst-4);
+ symbol = balsym;
+ value = (symbol->symbol.value
+ + output_addr (symbol->symbol.section));
+ }
- }
- else
- {
+ word += value + reloc_entry->addend;
- word = CALL |
- (((word & BAL_MASK) +
- symbol->symbol.section->output_offset +
- symbol->symbol.section->output_section->vma+
- symbol->symbol.value + reloc_entry->addend - dstidx -
- ( input_section->output_section->vma + input_section->output_offset))
- & BAL_MASK);
- }
- bfd_put_32(abfd, word, (bfd_byte *) data + dstidx);
+ bfd_put_32 (abfd, (bfd_vma) word, dst);
return bfd_reloc_ok;
}
-/* type rshift size bitsize pcrel bitpos absolute overflow check*/
-
-#define ABS32CODE 0
-#define ABS32CODE_SHRUNK 1
-#define PCREL24 2
-#define CALLJ 3
-#define ABS32 4
-#define PCREL13 5
-#define ABS32_MAYBE_RELAXABLE 1
-#define ABS32_WAS_RELAXABLE 2
-
-#define ALIGNER 10
-#define ALIGNDONE 11
-static reloc_howto_type howto_reloc_callj =
-HOWTO(CALLJ, 0, 2, 24, true, 0, true, true, 0,"callj", true, 0x00ffffff, 0x00ffffff,false);
-static reloc_howto_type howto_reloc_abs32 =
-HOWTO(ABS32, 0, 2, 32, false, 0, true, true,0,"abs32", true, 0xffffffff,0xffffffff,false);
-static reloc_howto_type howto_reloc_pcrel24 =
-HOWTO(PCREL24, 0, 2, 24, true, 0, true, true,0,"pcrel24", true, 0x00ffffff,0x00ffffff,false);
-
-static reloc_howto_type howto_reloc_pcrel13 =
-HOWTO(PCREL13, 0, 2, 13, true, 0, true, true,0,"pcrel13", true, 0x00001fff,0x00001fff,false);
-
+/* Magic to turn call into callj. */
+
+static bfd_reloc_status_type
+callj_callback (bfd *abfd,
+ struct bfd_link_info *link_info,
+ arelent *reloc_entry,
+ void * data,
+ unsigned int srcidx,
+ unsigned int dstidx,
+ asection *input_section,
+ bfd_boolean shrinking)
+{
+ int word = bfd_get_32 (abfd, (bfd_byte *) data + srcidx);
+ asymbol *symbol_in = *(reloc_entry->sym_ptr_ptr);
+ aout_symbol_type *symbol = aout_symbol (symbol_in);
+ bfd_vma value;
-static reloc_howto_type howto_reloc_abs32codeshrunk =
-HOWTO(ABS32CODE_SHRUNK, 0, 2, 24, true, 0, true, true, 0,"callx->callj", true, 0x00ffffff, 0x00ffffff,false);
+ value = get_value (reloc_entry, link_info, input_section);
-static reloc_howto_type howto_reloc_abs32code =
-HOWTO(ABS32CODE, 0, 2, 32, false, 0, true, true,0,"callx", true, 0xffffffff,0xffffffff,false);
-
-static reloc_howto_type howto_align_table[] = {
- HOWTO (ALIGNER, 0, 0x1, 0, false, 0, false, false, 0, "align16", false, 0, 0, false),
- HOWTO (ALIGNER, 0, 0x3, 0, false, 0, false, false, 0, "align32", false, 0, 0, false),
- HOWTO (ALIGNER, 0, 0x7, 0, false, 0, false, false, 0, "align64", false, 0, 0, false),
- HOWTO (ALIGNER, 0, 0xf, 0, false, 0, false, false, 0, "align128", false, 0, 0, false),
-};
+ if (IS_OTHER (symbol->other))
+ /* Call to a system procedure - replace code with system
+ procedure number. */
+ word = CALLS | (symbol->other - 1);
-static reloc_howto_type howto_done_align_table[] = {
- HOWTO (ALIGNDONE, 0x1, 0x1, 0, false, 0, false, false, 0, "donealign16", false, 0, 0, false),
- HOWTO (ALIGNDONE, 0x3, 0x3, 0, false, 0, false, false, 0, "donealign32", false, 0, 0, false),
- HOWTO (ALIGNDONE, 0x7, 0x7, 0, false, 0, false, false, 0, "donealign64", false, 0, 0, false),
- HOWTO (ALIGNDONE, 0xf, 0xf, 0, false, 0, false, false, 0, "donealign128", false, 0, 0, false),
-};
+ else if (IS_CALLNAME (symbol->other))
+ {
+ aout_symbol_type *balsym = symbol+1;
+
+ /* The next symbol should be an N_BALNAME. */
+ BFD_ASSERT (IS_BALNAME (balsym->other));
+
+ /* We are calling a leaf, so replace the call instruction with a
+ bal. */
+ word = BAL | ((word
+ + output_addr (balsym->symbol.section)
+ + balsym->symbol.value + reloc_entry->addend
+ - dstidx
+ - output_addr (input_section))
+ & BAL_MASK);
+ }
+ else if ((symbol->symbol.flags & BSF_SECTION_SYM) != 0)
+ {
+ /* A callj against a symbol in the same section is a fully
+ resolved relative call. We don't need to do anything here.
+ If the symbol is not in the same section, I'm not sure what
+ to do; fortunately, this case will probably never arise. */
+ BFD_ASSERT (! shrinking);
+ BFD_ASSERT (symbol->symbol.section == input_section);
+ }
+ else
+ word = CALL | (((word & BAL_MASK)
+ + value
+ + reloc_entry->addend
+ - (shrinking ? dstidx : 0)
+ - output_addr (input_section))
+ & BAL_MASK);
+
+ bfd_put_32 (abfd, (bfd_vma) word, (bfd_byte *) data + dstidx);
+ return bfd_reloc_ok;
+}
static reloc_howto_type *
-b_out_reloc_type_lookup (abfd, code)
- bfd *abfd;
- bfd_reloc_code_real_type code;
+b_out_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
{
switch (code)
{
case BFD_RELOC_I960_CALLJ:
return &howto_reloc_callj;
case BFD_RELOC_32:
+ case BFD_RELOC_CTOR:
return &howto_reloc_abs32;
case BFD_RELOC_24_PCREL:
return &howto_reloc_pcrel24;
}
}
-/* Allocate enough room for all the reloc entries, plus pointers to them all */
+static reloc_howto_type *
+b_out_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ if (strcasecmp (howto_reloc_callj.name, r_name) == 0)
+ return &howto_reloc_callj;
+ if (strcasecmp (howto_reloc_abs32.name, r_name) == 0)
+ return &howto_reloc_abs32;
+ if (strcasecmp (howto_reloc_pcrel24.name, r_name) == 0)
+ return &howto_reloc_pcrel24;
+
+ return NULL;
+}
-static boolean
-b_out_slurp_reloc_table (abfd, asect, symbols)
- bfd *abfd;
- sec_ptr asect;
- asymbol **symbols;
+/* Allocate enough room for all the reloc entries, plus pointers to them all. */
+
+static bfd_boolean
+b_out_slurp_reloc_table (bfd *abfd, sec_ptr asect, asymbol **symbols)
{
- register struct relocation_info *rptr;
- unsigned int counter ;
- arelent *cache_ptr ;
+ struct relocation_info *rptr;
+ unsigned int counter;
+ arelent *cache_ptr;
int extern_mask, pcrel_mask, callj_mask, length_shift;
int incode_mask;
int size_mask;
bfd_vma prev_addr = 0;
unsigned int count;
- size_t reloc_size;
+ bfd_size_type reloc_size, amt;
struct relocation_info *relocs;
arelent *reloc_cache;
- if (asect->relocation) return true;
- if (!aout_32_slurp_symbol_table (abfd)) return false;
-
- if (asect == obj_datasec (abfd)) {
- reloc_size = exec_hdr(abfd)->a_drsize;
- goto doit;
- }
+ if (asect->relocation)
+ return TRUE;
- if (asect == obj_textsec (abfd)) {
- reloc_size = exec_hdr(abfd)->a_trsize;
- goto doit;
- }
+ if (!aout_32_slurp_symbol_table (abfd))
+ return FALSE;
- bfd_error = invalid_operation;
- return false;
+ if (asect == obj_datasec (abfd))
+ reloc_size = exec_hdr (abfd)->a_drsize;
+ else if (asect == obj_textsec (abfd))
+ reloc_size = exec_hdr (abfd)->a_trsize;
+ else if (asect == obj_bsssec (abfd))
+ reloc_size = 0;
+ else
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+ }
- doit:
- bfd_seek (abfd, (file_ptr)(asect->rel_filepos), SEEK_SET);
+ if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
+ return FALSE;
count = reloc_size / sizeof (struct relocation_info);
- relocs = (struct relocation_info *) bfd_xmalloc (reloc_size);
- if (!relocs) {
- bfd_error = no_memory;
- return false;
- }
- reloc_cache = (arelent *) bfd_xmalloc ((count+1) * sizeof (arelent));
- if (!reloc_cache) {
- free ((char*)relocs);
- bfd_error = no_memory;
- return false;
- }
+ relocs = bfd_malloc (reloc_size);
+ if (!relocs && reloc_size != 0)
+ return FALSE;
- if (bfd_read ((PTR) relocs, 1, reloc_size, abfd) != reloc_size) {
- bfd_error = system_call_error;
- free (reloc_cache);
- free (relocs);
- return false;
- }
+ amt = ((bfd_size_type) count + 1) * sizeof (arelent);
+ reloc_cache = bfd_malloc (amt);
+ if (!reloc_cache)
+ {
+ if (relocs != NULL)
+ free (relocs);
+ return FALSE;
+ }
+ if (bfd_bread ((void *) relocs, reloc_size, abfd) != reloc_size)
+ {
+ free (reloc_cache);
+ if (relocs != NULL)
+ free (relocs);
+ return FALSE;
+ }
-
- if (abfd->xvec->header_byteorder_big_p) {
- /* big-endian bit field allocation order */
- pcrel_mask = 0x80;
- extern_mask = 0x10;
- incode_mask = 0x08;
- callj_mask = 0x02;
- size_mask = 0x20;
- length_shift = 5;
- } else {
- /* little-endian bit field allocation order */
- pcrel_mask = 0x01;
- extern_mask = 0x08;
- incode_mask = 0x10;
- callj_mask = 0x40;
- size_mask = 0x02;
- length_shift = 1;
- }
+ if (bfd_header_big_endian (abfd))
+ {
+ /* Big-endian bit field allocation order. */
+ pcrel_mask = 0x80;
+ extern_mask = 0x10;
+ incode_mask = 0x08;
+ callj_mask = 0x02;
+ size_mask = 0x20;
+ length_shift = 5;
+ }
+ else
+ {
+ /* Little-endian bit field allocation order. */
+ pcrel_mask = 0x01;
+ extern_mask = 0x08;
+ incode_mask = 0x10;
+ callj_mask = 0x40;
+ size_mask = 0x02;
+ length_shift = 1;
+ }
for (rptr = relocs, cache_ptr = reloc_cache, counter = 0;
counter < count;
- counter++, rptr++, cache_ptr++)
+ counter++, rptr++, cache_ptr++)
{
unsigned char *raw = (unsigned char *)rptr;
unsigned int symnum;
- cache_ptr->address = bfd_h_get_32 (abfd, raw + 0);
+
+ cache_ptr->address = H_GET_32 (abfd, raw + 0);
cache_ptr->howto = 0;
- if (abfd->xvec->header_byteorder_big_p)
- {
+
+ if (bfd_header_big_endian (abfd))
symnum = (raw[4] << 16) | (raw[5] << 8) | raw[6];
- }
else
- {
symnum = (raw[6] << 16) | (raw[5] << 8) | raw[4];
- }
- if (raw[7] & extern_mask)
- {
- /* if this is set then the r_index is a index into the symbol table;
- * if the bit is not set then r_index contains a section map.
- * we either fill in the sym entry with a pointer to the symbol,
- * or point to the correct section
- */
+ if (raw[7] & extern_mask)
+ {
+ /* If this is set then the r_index is an index into the symbol table;
+ if the bit is not set then r_index contains a section map.
+ We either fill in the sym entry with a pointer to the symbol,
+ or point to the correct section. */
cache_ptr->sym_ptr_ptr = symbols + symnum;
cache_ptr->addend = 0;
- } else
- {
- /* in a.out symbols are relative to the beginning of the
- * file rather than sections ?
- * (look in translate_from_native_sym_flags)
- * the reloc entry addend has added to it the offset into the
- * file of the data, so subtract the base to make the reloc
- * section relative */
- int s;
+ }
+ else
{
- /* sign-extend symnum from 24 bits to whatever host uses */
+ /* In a.out symbols are relative to the beginning of the
+ file rather than sections ?
+ (look in translate_from_native_sym_flags)
+ The reloc entry addend has added to it the offset into the
+ file of the data, so subtract the base to make the reloc
+ section relative. */
+ int s;
+
+ /* Sign-extend symnum from 24 bits to whatever host uses. */
s = symnum;
if (s & (1 << 23))
s |= (~0) << 24;
- }
- cache_ptr->sym_ptr_ptr = (asymbol **)NULL;
- switch (s)
- {
- case N_TEXT:
- case N_TEXT | N_EXT:
- cache_ptr->sym_ptr_ptr = obj_textsec(abfd)->symbol_ptr_ptr;
- cache_ptr->addend = - obj_textsec(abfd)->vma;
- break;
- case N_DATA:
- case N_DATA | N_EXT:
- cache_ptr->sym_ptr_ptr = obj_datasec(abfd)->symbol_ptr_ptr;
- cache_ptr->addend = - obj_datasec(abfd)->vma;
- break;
- case N_BSS:
- case N_BSS | N_EXT:
- cache_ptr->sym_ptr_ptr = obj_bsssec(abfd)->symbol_ptr_ptr;
- cache_ptr->addend = - obj_bsssec(abfd)->vma;
- break;
- case N_ABS:
- case N_ABS | N_EXT:
- cache_ptr->sym_ptr_ptr = obj_bsssec(abfd)->symbol_ptr_ptr;
- cache_ptr->addend = 0;
- break;
- case -2: /* .align */
- if (raw[7] & pcrel_mask)
- {
- cache_ptr->howto = &howto_align_table[(raw[7] >> length_shift) & 3];
- cache_ptr->sym_ptr_ptr = &bfd_abs_symbol;
- }
- else
+
+ cache_ptr->sym_ptr_ptr = (asymbol **)NULL;
+ switch (s)
{
- /* .org? */
- abort ();
+ case N_TEXT:
+ case N_TEXT | N_EXT:
+ cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr;
+ cache_ptr->addend = - obj_textsec (abfd)->vma;
+ break;
+ case N_DATA:
+ case N_DATA | N_EXT:
+ cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr;
+ cache_ptr->addend = - obj_datasec (abfd)->vma;
+ break;
+ case N_BSS:
+ case N_BSS | N_EXT:
+ cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr;
+ cache_ptr->addend = - obj_bsssec (abfd)->vma;
+ break;
+ case N_ABS:
+ case N_ABS | N_EXT:
+ cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr;
+ cache_ptr->addend = 0;
+ break;
+ case -2: /* .align */
+ if (raw[7] & pcrel_mask)
+ {
+ cache_ptr->howto = &howto_align_table[(raw[7] >> length_shift) & 3];
+ cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
+ }
+ else
+ {
+ /* .org? */
+ abort ();
+ }
+ cache_ptr->addend = 0;
+ break;
+ default:
+ BFD_ASSERT (FALSE);
+ break;
}
- cache_ptr->addend = 0;
- break;
- default:
- BFD_ASSERT(0);
- break;
}
-
- }
- /* the i960 only has a few relocation types:
+ /* The i960 only has a few relocation types:
abs 32-bit and pcrel 24bit. except for callj's! */
if (cache_ptr->howto != 0)
;
else if (raw[7] & callj_mask)
- {
- cache_ptr->howto = &howto_reloc_callj;
- }
+ {
+ cache_ptr->howto = &howto_reloc_callj;
+ }
else if ( raw[7] & pcrel_mask)
- {
- if (raw[7] & size_mask)
- cache_ptr->howto = &howto_reloc_pcrel13;
- else
- cache_ptr->howto = &howto_reloc_pcrel24;
- }
- else
- {
- if (raw[7] & incode_mask)
{
- cache_ptr->howto = &howto_reloc_abs32code;
+ if (raw[7] & size_mask)
+ cache_ptr->howto = &howto_reloc_pcrel13;
+ else
+ cache_ptr->howto = &howto_reloc_pcrel24;
}
- else
+ else
{
- cache_ptr->howto = &howto_reloc_abs32;
+ if (raw[7] & incode_mask)
+ cache_ptr->howto = &howto_reloc_abs32code;
+ else
+ cache_ptr->howto = &howto_reloc_abs32;
}
- }
- if (cache_ptr->address < prev_addr)
- {
- /* Ouch! this reloc is out of order, insert into the right place
- */
- arelent tmp;
- arelent *cursor = cache_ptr-1;
- bfd_vma stop = cache_ptr->address;
- tmp = *cache_ptr;
- while (cursor->address > stop && cursor >= reloc_cache)
+
+ if (cache_ptr->address < prev_addr)
{
- cursor[1] = cursor[0];
- cursor--;
- }
- cursor[1] = tmp;
- }
- else
- {
+ /* Ouch! this reloc is out of order, insert into the right place. */
+ arelent tmp;
+ arelent *cursor = cache_ptr-1;
+ bfd_vma stop = cache_ptr->address;
+
+ tmp = *cache_ptr;
+ while (cursor->address > stop && cursor >= reloc_cache)
+ {
+ cursor[1] = cursor[0];
+ cursor--;
+ }
+
+ cursor[1] = tmp;
+ }
+ else
prev_addr = cache_ptr->address;
- }
}
-
- free (relocs);
+ if (relocs != NULL)
+ free (relocs);
asect->relocation = reloc_cache;
asect->reloc_count = count;
-
- return true;
+ return TRUE;
}
+/* This is stupid. This function should be a boolean predicate. */
-static boolean
-b_out_squirt_out_relocs (abfd, section)
- bfd *abfd;
- asection *section;
+static long
+b_out_canonicalize_reloc (bfd *abfd,
+ sec_ptr section,
+ arelent **relptr,
+ asymbol **symbols)
{
+ arelent *tblptr;
+ unsigned int count;
- arelent **generic;
- int r_extern;
- int r_idx;
- int incode_mask;
- int len_1;
- unsigned int count = section->reloc_count;
- struct relocation_info *native, *natptr;
- size_t natsize = count * sizeof (struct relocation_info);
- int extern_mask, pcrel_mask, len_2, callj_mask;
- if (count == 0) return true;
- generic = section->orelocation;
- native = ((struct relocation_info *) bfd_xmalloc (natsize));
- if (!native) {
- bfd_error = no_memory;
- return false;
- }
-
- if (abfd->xvec->header_byteorder_big_p)
- {
- /* Big-endian bit field allocation order */
- pcrel_mask = 0x80;
- extern_mask = 0x10;
- len_2 = 0x40;
- len_1 = 0x20;
- callj_mask = 0x02;
- incode_mask = 0x08;
- }
- else
- {
- /* Little-endian bit field allocation order */
- pcrel_mask = 0x01;
- extern_mask = 0x08;
- len_2 = 0x04;
- len_1 = 0x02;
- callj_mask = 0x40;
- incode_mask = 0x10;
- }
-
- for (natptr = native; count > 0; --count, ++natptr, ++generic)
- {
- arelent *g = *generic;
- unsigned char *raw = (unsigned char *)natptr;
- asymbol *sym = *(g->sym_ptr_ptr);
-
- asection *output_section = sym->section->output_section;
-
- bfd_h_put_32(abfd, g->address, raw);
- /* Find a type in the output format which matches the input howto -
- * at the moment we assume input format == output format FIXME!!
- */
- r_idx = 0;
- /* FIXME: Need callj stuff here, and to check the howto entries to
- be sure they are real for this architecture. */
- if (g->howto== &howto_reloc_callj)
- {
- raw[7] = callj_mask + pcrel_mask + len_2;
- }
- else if (g->howto == &howto_reloc_pcrel24)
- {
- raw[7] = pcrel_mask + len_2;
- }
- else if (g->howto == &howto_reloc_pcrel13)
- {
- raw[7] = pcrel_mask + len_1;
- }
- else if (g->howto == &howto_reloc_abs32code)
- {
- raw[7] = len_2 + incode_mask;
- }
- else if (g->howto >= howto_align_table
- && g->howto <= (howto_align_table
- + sizeof (howto_align_table) / sizeof (howto_align_table[0])
- - 1))
- {
- /* symnum == -2; extern_mask not set, pcrel_mask set */
- r_idx = -2;
- r_extern = 0;
- raw[7] = (pcrel_mask
- | ((g->howto - howto_align_table) << 1));
- }
- else {
- raw[7] = len_2;
- }
-
- if (r_idx != 0)
- /* already mucked with r_extern, r_idx */;
- else if (output_section == &bfd_com_section
- || output_section == &bfd_abs_section
- || output_section == &bfd_und_section)
+ if ((section->flags & SEC_CONSTRUCTOR) != 0)
{
+ arelent_chain *chain = section->constructor_chain;
- if (bfd_abs_section.symbol == sym)
- {
- /* Whoops, looked like an abs symbol, but is really an offset
- from the abs section */
- r_idx = 0;
- r_extern = 0;
- }
- else
- {
- /* Fill in symbol */
-
- r_extern = 1;
- r_idx = stoi((*(g->sym_ptr_ptr))->flags);
- }
+ for (count = 0; count < section->reloc_count; count++)
+ {
+ *relptr++ = &chain->relent;
+ chain = chain->next;
+ }
}
- else
+ else
{
- /* Just an ordinary section */
- r_extern = 0;
- r_idx = output_section->target_index;
- }
-
- if (abfd->xvec->header_byteorder_big_p) {
- raw[4] = (unsigned char) (r_idx >> 16);
- raw[5] = (unsigned char) (r_idx >> 8);
- raw[6] = (unsigned char) (r_idx );
- } else {
- raw[6] = (unsigned char) (r_idx >> 16);
- raw[5] = (unsigned char) (r_idx>> 8);
- raw[4] = (unsigned char) (r_idx );
- }
- if (r_extern)
- raw[7] |= extern_mask;
- }
-
- if (bfd_write ((PTR) native, 1, natsize, abfd) != natsize) {
- free((PTR)native);
- return false;
- }
- free ((PTR)native);
-
- return true;
-}
-
-/* This is stupid. This function should be a boolean predicate */
-static unsigned int
-b_out_canonicalize_reloc (abfd, section, relptr, symbols)
- bfd *abfd;
- sec_ptr section;
- arelent **relptr;
- asymbol **symbols;
-{
- arelent *tblptr = section->relocation;
- unsigned int count = 0;
-
- if (!(tblptr || b_out_slurp_reloc_table (abfd, section, symbols))) return 0;
- tblptr = section->relocation;
- if (!tblptr) return 0;
+ if (section->relocation == NULL
+ && ! b_out_slurp_reloc_table (abfd, section, symbols))
+ return -1;
- for (; count++ < section->reloc_count;)
- *relptr++ = tblptr++;
+ tblptr = section->relocation;
+ for (count = 0; count++ < section->reloc_count;)
+ *relptr++ = tblptr++;
+ }
- *relptr = 0;
+ *relptr = NULL;
return section->reloc_count;
}
-static unsigned int
-b_out_get_reloc_upper_bound (abfd, asect)
- bfd *abfd;
- sec_ptr asect;
+static long
+b_out_get_reloc_upper_bound (bfd *abfd, sec_ptr asect)
{
- if (bfd_get_format (abfd) != bfd_object) {
- bfd_error = invalid_operation;
- return 0;
- }
+ if (bfd_get_format (abfd) != bfd_object)
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return -1;
+ }
+
+ if (asect->flags & SEC_CONSTRUCTOR)
+ return sizeof (arelent *) * (asect->reloc_count + 1);
if (asect == obj_datasec (abfd))
return (sizeof (arelent *) *
- ((exec_hdr(abfd)->a_drsize / sizeof (struct relocation_info))
- +1));
+ ((exec_hdr (abfd)->a_drsize / sizeof (struct relocation_info))
+ + 1));
if (asect == obj_textsec (abfd))
return (sizeof (arelent *) *
- ((exec_hdr(abfd)->a_trsize / sizeof (struct relocation_info))
- +1));
+ ((exec_hdr (abfd)->a_trsize / sizeof (struct relocation_info))
+ + 1));
- bfd_error = invalid_operation;
- return 0;
+ if (asect == obj_bsssec (abfd))
+ return 0;
+
+ bfd_set_error (bfd_error_invalid_operation);
+ return -1;
}
+
\f
-static boolean
-b_out_set_section_contents (abfd, section, location, offset, count)
- bfd *abfd;
- sec_ptr section;
- unsigned char *location;
- file_ptr offset;
- int count;
+static bfd_boolean
+b_out_set_section_contents (bfd *abfd,
+ asection *section,
+ const void * location,
+ file_ptr offset,
+ bfd_size_type count)
{
+ if (! abfd->output_has_begun)
+ {
+ /* Set by bfd.c handler. */
+ if (! aout_32_make_sections (abfd))
+ return FALSE;
- if (abfd->output_has_begun == false) { /* set by bfd.c handler */
- if ((obj_textsec (abfd) == NULL) || (obj_datasec (abfd) == NULL) /*||
- (obj_textsec (abfd)->_cooked_size == 0) || (obj_datasec (abfd)->_cooked_size == 0)*/) {
- bfd_error = invalid_operation;
- return false;
+ obj_textsec (abfd)->filepos = sizeof (struct external_exec);
+ obj_datasec (abfd)->filepos = obj_textsec (abfd)->filepos
+ + obj_textsec (abfd)->size;
}
- obj_textsec (abfd)->filepos = sizeof(struct internal_exec);
- obj_datasec(abfd)->filepos = obj_textsec(abfd)->filepos
- + obj_textsec (abfd)->_raw_size;
+ /* Regardless, once we know what we're doing, we might as well get going. */
+ if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0)
+ return FALSE;
- }
- /* regardless, once we know what we're doing, we might as well get going */
- bfd_seek (abfd, section->filepos + offset, SEEK_SET);
+ if (count == 0)
+ return TRUE;
- if (count != 0) {
- return (bfd_write ((PTR)location, 1, count, abfd) == count) ?true:false;
- }
- return true;
+ return bfd_bwrite ((void *) location, count, abfd) == count;
}
-static boolean
-b_out_set_arch_mach (abfd, arch, machine)
- bfd *abfd;
- enum bfd_architecture arch;
- unsigned long machine;
+static bfd_boolean
+b_out_set_arch_mach (bfd *abfd,
+ enum bfd_architecture arch,
+ unsigned long machine)
{
- bfd_default_set_arch_mach(abfd, arch, machine);
-
- if (arch == bfd_arch_unknown) /* Unknown machine arch is OK */
- return true;
- if (arch == bfd_arch_i960) /* i960 default is OK */
- switch (machine) {
- case bfd_mach_i960_core:
- case bfd_mach_i960_kb_sb:
- case bfd_mach_i960_mc:
- case bfd_mach_i960_xa:
- case bfd_mach_i960_ca:
- case bfd_mach_i960_ka_sa:
- case 0:
- return true;
- default:
- return false;
- }
-
- return false;
-}
+ bfd_default_set_arch_mach (abfd, arch, machine);
-static int
-DEFUN(b_out_sizeof_headers,(ignore_abfd, ignore),
- bfd *ignore_abfd AND
- boolean ignore)
-{
- return sizeof(struct internal_exec);
-}
+ if (arch == bfd_arch_unknown) /* Unknown machine arch is OK. */
+ return TRUE;
+ if (arch == bfd_arch_i960) /* i960 default is OK. */
+ switch (machine)
+ {
+ case bfd_mach_i960_core:
+ case bfd_mach_i960_kb_sb:
+ case bfd_mach_i960_mc:
+ case bfd_mach_i960_xa:
+ case bfd_mach_i960_ca:
+ case bfd_mach_i960_ka_sa:
+ case bfd_mach_i960_jx:
+ case bfd_mach_i960_hx:
+ case 0:
+ return TRUE;
+ default:
+ return FALSE;
+ }
+ return FALSE;
+}
-/************************************************************************/
-static bfd_vma
-DEFUN(get_value,(reloc, seclet),
- arelent *reloc AND
- bfd_seclet_type *seclet)
+static int
+b_out_sizeof_headers (bfd *ignore_abfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
- 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 += (short)((reloc->addend) & 0xffff);
-
- return value;
+ return sizeof (struct external_exec);
}
-
+\f
static void
-DEFUN(perform_slip,(s, slip, input_section, value),
- asymbol **s AND
- unsigned int slip AND
- asection *input_section AND
- bfd_vma value)
+perform_slip (bfd *abfd,
+ unsigned int slip,
+ asection *input_section,
+ bfd_vma value)
{
-
+ asymbol **s;
+
+ s = _bfd_generic_link_get_symbols (abfd);
+ BFD_ASSERT (s != (asymbol **) NULL);
+
/* Find all symbols past this point, and make them know
- what's happened */
- while (*s)
- {
- asymbol *p = *s;
- if (p->section == input_section)
+ what's happened. */
+ while (*s)
{
- /* This was pointing into this section, so mangle it */
- if (p->value > value)
- {
- p->value -=slip;
- }
+ asymbol *p = *s;
+
+ if (p->section == input_section)
+ {
+ /* This was pointing into this section, so mangle it. */
+ if (p->value > value)
+ {
+ p->value -=slip;
+
+ if (p->udata.p != NULL)
+ {
+ struct generic_link_hash_entry *h;
+
+ h = (struct generic_link_hash_entry *) p->udata.p;
+ BFD_ASSERT (h->root.type == bfd_link_hash_defined);
+ h->root.u.def.value -= slip;
+ BFD_ASSERT (h->root.u.def.value == p->value);
+ }
+ }
+ }
+ s++;
}
- s++;
-
- }
}
-#if 1
+
/* This routine works out if the thing we want to get to can be
reached with a 24bit offset instead of a 32 bit one.
- If it can, then it changes the amode */
-
-static int
-DEFUN(abs32code,(input_section, symbols, r, shrink),
- asection *input_section AND
- asymbol **symbols AND
- arelent *r AND
- unsigned int shrink)
+ If it can, then it changes the amode. */
+
+static int
+abs32code (bfd *abfd,
+ asection *input_section,
+ arelent *r,
+ unsigned int shrink,
+ struct bfd_link_info *link_info)
{
- bfd_vma value = get_value(r,0);
- bfd_vma dot = input_section->output_section->vma + input_section->output_offset + r->address;
+ bfd_vma value = get_value (r, link_info, input_section);
+ bfd_vma dot = output_addr (input_section) + r->address;
bfd_vma gap;
-
+
/* See if the address we're looking at within 2^23 bytes of where
we are, if so then we can use a small branch rather than the
- jump we were going to */
-
+ jump we were going to. */
gap = value - (dot - shrink);
-
-
- if (-1<<23 < (long)gap && (long)gap < 1<<23 )
- {
- /* Change the reloc type from 32bitcode possible 24, to 24bit
- possible 32 */
-
- r->howto = &howto_reloc_abs32codeshrunk;
- /* The place to relc moves back by four bytes */
- r->address -=4;
-
- /* This will be four bytes smaller in the long run */
- shrink += 4 ;
- perform_slip(symbols, 4, input_section, r->address-shrink +4);
- }
- return shrink;
+
+ if (-1 << 23 < (long)gap && (long)gap < 1 << 23)
+ {
+ /* Change the reloc type from 32bitcode possible 24, to 24bit
+ possible 32. */
+ r->howto = &howto_reloc_abs32codeshrunk;
+ /* The place to relc moves back by four bytes. */
+ r->address -=4;
+
+ /* This will be four bytes smaller in the long run. */
+ shrink += 4 ;
+ perform_slip (abfd, 4, input_section, r->address-shrink + 4);
+ }
+
+ return shrink;
}
-static int
-DEFUN(aligncode,(input_section, symbols, r, shrink),
- asection *input_section AND
- asymbol **symbols AND
- arelent *r AND
- unsigned int shrink)
+static int
+aligncode (bfd *abfd,
+ asection *input_section,
+ arelent *r,
+ unsigned int shrink)
{
- bfd_vma dot = input_section->output_section->vma + input_section->output_offset + r->address;
+ bfd_vma dot = output_addr (input_section) + r->address;
bfd_vma gap;
bfd_vma old_end;
bfd_vma new_end;
- int shrink_delta;
+ unsigned int shrink_delta;
int size = r->howto->size;
/* Reduce the size of the alignment so that it's still aligned but
smaller - the current size is already the same size as or bigger
than the alignment required. */
- /* calculate the first byte following the padding before we optimize */
+ /* Calculate the first byte following the padding before we optimize. */
old_end = ((dot + size ) & ~size) + size+1;
- /* work out where the new end will be - remember that we're smaller
- than we used to be */
+ /* Work out where the new end will be - remember that we're smaller
+ than we used to be. */
new_end = ((dot - shrink + size) & ~size);
- /* This is the new end */
+ /* This is the new end. */
gap = old_end - ((dot + size) & ~size);
shrink_delta = (old_end - new_end) - shrink;
if (shrink_delta)
- {
- /* Change the reloc so that it knows how far to align to */
- r->howto = howto_done_align_table + (r->howto - howto_align_table);
-
- /* Encode the stuff into the addend - for future use we need to
- know how big the reloc used to be */
- r->addend = old_end ;
-
- /* This will be N bytes smaller in the long run, adjust all the symbols */
- perform_slip(symbols, shrink_delta, input_section, r->address - shrink );
- shrink += shrink_delta;
- }
- return shrink;
-}
+ {
+ /* Change the reloc so that it knows how far to align to. */
+ r->howto = howto_done_align_table + (r->howto - howto_align_table);
+
+ /* Encode the stuff into the addend - for future use we need to
+ know how big the reloc used to be. */
+ r->addend = old_end - dot + r->address;
+ /* This will be N bytes smaller in the long run, adjust all the symbols. */
+ perform_slip (abfd, shrink_delta, input_section, r->address - shrink);
+ shrink += shrink_delta;
+ }
+
+ return shrink;
+}
-static boolean
-DEFUN(b_out_relax_section,(abfd, i, symbols),
- bfd *abfd AND
- asection *i AND
- asymbol **symbols)
+static bfd_boolean
+b_out_bfd_relax_section (bfd *abfd,
+ asection *i,
+ struct bfd_link_info *link_info,
+ bfd_boolean *again)
{
-
- /* Get enough memory to hold the stuff */
+ /* 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 **)alloca(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++)
+ unsigned int shrink = 0 ;
+ arelent **reloc_vector = NULL;
+ long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
+
+ if (link_info->relocatable)
+ (*link_info->callbacks->einfo)
+ (_("%P%F: --relax and -r may not be used together\n"));
+
+ if (reloc_size < 0)
+ return FALSE;
+
+ /* We only run this relaxation once. It might work to run it
+ multiple times, but it hasn't been tested. */
+ *again = FALSE;
+
+ if (reloc_size)
{
- arelent *r = *parent;
- switch (r->howto->type) {
- case ALIGNER:
- /* An alignment reloc */
- shrink = aligncode(input_section, symbols, r,shrink);
- new=true;
- break;
- case ABS32CODE:
- /* A 32bit reloc in an addressing mode */
- shrink = abs32code(input_section, symbols, r,shrink);
- new=true;
- break;
- case ABS32CODE_SHRUNK:
- shrink+=4;
- break;
- }
+ long reloc_count;
+
+ reloc_vector = bfd_malloc ((bfd_size_type) reloc_size);
+ if (reloc_vector == NULL && reloc_size != 0)
+ goto error_return;
+
+ /* Get the relocs and think about them. */
+ reloc_count =
+ bfd_canonicalize_reloc (input_bfd, input_section, reloc_vector,
+ _bfd_generic_link_get_symbols (input_bfd));
+ if (reloc_count < 0)
+ goto error_return;
+ if (reloc_count > 0)
+ {
+ arelent **parent;
+
+ for (parent = reloc_vector; *parent; parent++)
+ {
+ arelent *r = *parent;
+
+ switch (r->howto->type)
+ {
+ case ALIGNER:
+ /* An alignment reloc. */
+ shrink = aligncode (abfd, input_section, r, shrink);
+ break;
+ case ABS32CODE:
+ /* A 32bit reloc in an addressing mode. */
+ shrink = abs32code (input_bfd, input_section, r, shrink,
+ link_info);
+ break;
+ case ABS32CODE_SHRUNK:
+ shrink += 4;
+ break;
+ }
+ }
+ }
}
- }
- input_section->_cooked_size = input_section->_raw_size - shrink;
-
- return new;
+ input_section->size -= shrink;
+
+ if (reloc_vector != NULL)
+ free (reloc_vector);
+ return TRUE;
+ error_return:
+ if (reloc_vector != NULL)
+ free (reloc_vector);
+ return FALSE;
}
-#endif
static bfd_byte *
-DEFUN(b_out_get_relocated_section_contents,(in_abfd,
- seclet,
- data,
- relocateable),
- bfd *in_abfd AND
- bfd_seclet_type *seclet AND
- bfd_byte *data AND
- boolean relocateable)
+b_out_bfd_get_relocated_section_contents (bfd *output_bfd,
+ struct bfd_link_info *link_info,
+ struct bfd_link_order *link_order,
+ bfd_byte *data,
+ bfd_boolean relocatable,
+ asymbol **symbols)
{
- /* 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 **)alloca(reloc_size);
-
- /* If producing relocateable output, don't bother to relax. */
- if (relocateable)
- return bfd_generic_get_relocated_section_contents (in_abfd, seclet,
- data, relocateable);
-
- /* 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)
+ /* Get enough memory to hold the stuff. */
+ bfd *input_bfd = link_order->u.indirect.section->owner;
+ asection *input_section = link_order->u.indirect.section;
+ long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
+ arelent **reloc_vector = NULL;
+ long reloc_count;
+
+ if (reloc_size < 0)
+ goto error_return;
+
+ /* If producing relocatable output, don't bother to relax. */
+ if (relocatable)
+ return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
+ link_order,
+ data, relocatable,
+ symbols);
+
+ reloc_vector = bfd_malloc ((bfd_size_type) reloc_size);
+ if (reloc_vector == NULL && reloc_size != 0)
+ goto error_return;
+
+ /* Read in the section. */
+ BFD_ASSERT (bfd_get_section_contents (input_bfd,
+ input_section,
+ data,
+ (bfd_vma) 0,
+ input_section->size));
+
+ reloc_count = bfd_canonicalize_reloc (input_bfd,
+ input_section,
+ reloc_vector,
+ symbols);
+ if (reloc_count < 0)
+ goto error_return;
+ if (reloc_count > 0)
{
-
- 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)
+ 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 < link_order->size)
{
- case ABS32CODE:
- calljx_callback(in_abfd, reloc, src_address + data, dst_address+data,
- input_section, seclet);
- src_address+=4;
- dst_address+=4;
- break;
- case ABS32:
- bfd_put_32(in_abfd, get_value(reloc, seclet), data+dst_address);
- src_address+=4;
- dst_address+=4;
- break;
- case CALLJ:
- callj_callback(in_abfd, reloc ,data,src_address,dst_address,
- input_section, seclet);
- src_address+=4;
- dst_address+=4;
- break;
- case ALIGNDONE:
- src_address = reloc->addend;
- dst_address = (dst_address + reloc->howto->size) & ~reloc->howto->size;
- break;
- case ABS32CODE_SHRUNK:
- /* This used to be a callx, but we've found out that a
- callj will reach, so do the right thing */
- callj_callback(in_abfd, reloc,data,src_address+4, dst_address,
- input_section, seclet);
-
- dst_address+=4;
- src_address+=8;
- break;
- case PCREL24:
- {
- long int word = bfd_get_32(in_abfd, data+src_address);
- asymbol *symbol = *(reloc->sym_ptr_ptr);
- if (symbol->section == &bfd_und_section)
- {
- bfd_error_vector.undefined_symbol(reloc, seclet);
- }
- word = (word & ~BAL_MASK) |
- (((word & BAL_MASK) +
- symbol->section->output_offset +
- symbol->section->output_section->vma+
- symbol->value + reloc->addend - dst_address -
- ( input_section->output_section->vma + input_section->output_offset))
- & BAL_MASK);
-
- bfd_put_32(in_abfd,word, data+dst_address);
- dst_address+=4;
- src_address+=4;
-
- }
- break;
-
- case PCREL13:
- {
- long int word = bfd_get_32(in_abfd, data+src_address);
- asymbol *symbol = *(reloc->sym_ptr_ptr);
- if (symbol->section == &bfd_und_section)
- {
- bfd_error_vector.undefined_symbol(reloc, seclet);
- }
- word = (word & ~PCREL13_MASK) |
- (((word & PCREL13_MASK) +
- symbol->section->output_offset +
- symbol->section->output_section->vma+
- symbol->value + reloc->addend - dst_address -
- ( input_section->output_section->vma + input_section->output_offset))
- & PCREL13_MASK);
-
- bfd_put_32(in_abfd,word, data+dst_address);
- dst_address+=4;
- src_address+=4;
-
- }
- break;
-
- default:
-
- abort();
+ 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. */
+ BFD_ASSERT (reloc->address >= src_address);
+ run = reloc->address - src_address;
+ parent++;
+ }
+ else
+ run = link_order->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 ABS32CODE:
+ calljx_callback (input_bfd, link_info, reloc,
+ src_address + data, dst_address + data,
+ input_section);
+ src_address += 4;
+ dst_address += 4;
+ break;
+ case ABS32:
+ bfd_put_32 (input_bfd,
+ (bfd_get_32 (input_bfd, data + src_address)
+ + get_value (reloc, link_info, input_section)),
+ data + dst_address);
+ src_address += 4;
+ dst_address += 4;
+ break;
+ case CALLJ:
+ callj_callback (input_bfd, link_info, reloc, data,
+ src_address, dst_address, input_section,
+ FALSE);
+ src_address += 4;
+ dst_address += 4;
+ break;
+ case ALIGNDONE:
+ BFD_ASSERT (reloc->addend >= src_address);
+ BFD_ASSERT ((bfd_vma) reloc->addend
+ <= input_section->size);
+ src_address = reloc->addend;
+ dst_address = ((dst_address + reloc->howto->size)
+ & ~reloc->howto->size);
+ break;
+ case ABS32CODE_SHRUNK:
+ /* This used to be a callx, but we've found out that a
+ callj will reach, so do the right thing. */
+ callj_callback (input_bfd, link_info, reloc, data,
+ src_address + 4, dst_address, input_section,
+ TRUE);
+ dst_address += 4;
+ src_address += 8;
+ break;
+ case PCREL24:
+ {
+ long int word = bfd_get_32 (input_bfd,
+ data + src_address);
+ bfd_vma value;
+
+ value = get_value (reloc, link_info, input_section);
+ word = ((word & ~BAL_MASK)
+ | (((word & BAL_MASK)
+ + value
+ - output_addr (input_section)
+ + reloc->addend)
+ & BAL_MASK));
+
+ bfd_put_32 (input_bfd, (bfd_vma) word, data + dst_address);
+ dst_address += 4;
+ src_address += 4;
+
+ }
+ break;
+ case PCREL13:
+ {
+ long int word = bfd_get_32 (input_bfd,
+ data + src_address);
+ bfd_vma value;
+
+ value = get_value (reloc, link_info, input_section);
+ word = ((word & ~PCREL13_MASK)
+ | (((word & PCREL13_MASK)
+ + value
+ + reloc->addend
+ - output_addr (input_section))
+ & PCREL13_MASK));
+
+ bfd_put_32 (input_bfd, (bfd_vma) word, data + dst_address);
+ dst_address += 4;
+ src_address += 4;
+ }
+ break;
+
+ default:
+ abort ();
+ }
+ }
}
- }
}
- }
+ if (reloc_vector != NULL)
+ free (reloc_vector);
return data;
+ error_return:
+ if (reloc_vector != NULL)
+ free (reloc_vector);
+ return NULL;
}
-/***********************************************************************/
+\f
/* Build the transfer vectors for Big and Little-Endian B.OUT files. */
-/* We don't have core files. */
-#define aout_32_core_file_failing_command _bfd_dummy_core_file_failing_command
-#define aout_32_core_file_failing_signal _bfd_dummy_core_file_failing_signal
-#define aout_32_core_file_matches_executable_p \
- _bfd_dummy_core_file_matches_executable_p
-
-/* We use BSD-Unix generic archive files. */
-#define aout_32_openr_next_archived_file bfd_generic_openr_next_archived_file
-#define aout_32_generic_stat_arch_elt bfd_generic_stat_arch_elt
-#define aout_32_slurp_armap bfd_slurp_bsd_armap
-#define aout_32_slurp_extended_name_table bfd_true
-#define aout_32_write_armap bsd_write_armap
-#define aout_32_truncate_arname bfd_bsd_truncate_arname
-
-/* We override these routines from the usual a.out file routines. */
-#define aout_32_canonicalize_reloc b_out_canonicalize_reloc
-#define aout_32_get_reloc_upper_bound b_out_get_reloc_upper_bound
-#define aout_32_set_section_contents b_out_set_section_contents
-#define aout_32_set_arch_mach b_out_set_arch_mach
-#define aout_32_sizeof_headers b_out_sizeof_headers
-
-#define aout_32_bfd_debug_info_start bfd_void
-#define aout_32_bfd_debug_info_end bfd_void
-#define aout_32_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
-
-#define aout_32_bfd_get_relocated_section_contents b_out_get_relocated_section_contents
-#define aout_32_bfd_relax_section b_out_relax_section
-#define aout_32_bfd_seclet_link bfd_generic_seclet_link
-
-bfd_target b_out_vec_big_host =
+#define aout_32_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
+#define aout_32_close_and_cleanup aout_32_bfd_free_cached_info
+#define b_out_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
+#define b_out_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
+#define b_out_bfd_link_add_symbols _bfd_generic_link_add_symbols
+#define b_out_bfd_link_just_syms _bfd_generic_link_just_syms
+#define b_out_bfd_copy_link_hash_symbol_type \
+ _bfd_generic_copy_link_hash_symbol_type
+#define b_out_bfd_final_link _bfd_generic_final_link
+#define b_out_bfd_link_split_section _bfd_generic_link_split_section
+#define b_out_bfd_gc_sections bfd_generic_gc_sections
+#define b_out_bfd_merge_sections bfd_generic_merge_sections
+#define b_out_bfd_is_group_section bfd_generic_is_group_section
+#define b_out_bfd_discard_group bfd_generic_discard_group
+#define b_out_section_already_linked _bfd_generic_section_already_linked
+#define b_out_bfd_define_common_symbol bfd_generic_define_common_symbol
+#define aout_32_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
+
+extern const bfd_target b_out_vec_little_host;
+
+const bfd_target b_out_vec_big_host =
{
- "b.out.big", /* name */
+ "b.out.big", /* Name. */
bfd_target_aout_flavour,
- false, /* data byte order is little */
- true, /* hdr byte order is big */
- (HAS_RELOC | EXEC_P | /* object flags */
+ BFD_ENDIAN_LITTLE, /* Data byte order. */
+ BFD_ENDIAN_BIG, /* Header byte order. */
+ (HAS_RELOC | EXEC_P | /* Object flags. */
HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT ),
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
- '_', /* symbol leading char */
- ' ', /* ar_pad_char */
- 16, /* ar_max_namelen */
- 2, /* minumum alignment power */
-
- _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* data */
- _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
- {_bfd_dummy_target, b_out_object_p, /* bfd_check_format */
+ HAS_SYMS | HAS_LOCALS | WP_TEXT | BFD_IS_RELAXABLE ),
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
+ '_', /* Symbol leading char. */
+ ' ', /* AR_pad_char. */
+ 16, /* AR_max_namelen. */
+
+ bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+ bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+ bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data. */
+ bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+ bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+ bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */
+ {_bfd_dummy_target, b_out_object_p, /* bfd_check_format. */
bfd_generic_archive_p, _bfd_dummy_target},
- {bfd_false, b_out_mkobject, /* bfd_set_format */
+ {bfd_false, b_out_mkobject, /* bfd_set_format. */
_bfd_generic_mkarchive, bfd_false},
- {bfd_false, b_out_write_object_contents, /* bfd_write_contents */
+ {bfd_false, b_out_write_object_contents, /* bfd_write_contents. */
_bfd_write_archive_contents, bfd_false},
- JUMP_TABLE(aout_32),
- b_out_reloc_type_lookup,
-};
+ BFD_JUMP_TABLE_GENERIC (aout_32),
+ BFD_JUMP_TABLE_COPY (_bfd_generic),
+ BFD_JUMP_TABLE_CORE (_bfd_nocore),
+ BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd),
+ BFD_JUMP_TABLE_SYMBOLS (aout_32),
+ BFD_JUMP_TABLE_RELOCS (b_out),
+ BFD_JUMP_TABLE_WRITE (b_out),
+ BFD_JUMP_TABLE_LINK (b_out),
+ BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
+ & b_out_vec_little_host,
+
+ NULL
+};
-bfd_target b_out_vec_little_host =
+const bfd_target b_out_vec_little_host =
{
- "b.out.little", /* name */
+ "b.out.little", /* Name. */
bfd_target_aout_flavour,
- false, /* data byte order is little */
- false, /* header byte order is little */
- (HAS_RELOC | EXEC_P | /* object flags */
+ BFD_ENDIAN_LITTLE, /* Data byte order. */
+ BFD_ENDIAN_LITTLE, /* Header byte order. */
+ (HAS_RELOC | EXEC_P | /* Object flags. */
HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT ),
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
- '_', /* symbol leading char */
- ' ', /* ar_pad_char */
- 16, /* ar_max_namelen */
- 2, /* minum align */
-_do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* data */
-_do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* hdrs */
-
- {_bfd_dummy_target, b_out_object_p, /* bfd_check_format */
- bfd_generic_archive_p, _bfd_dummy_target},
- {bfd_false, b_out_mkobject, /* bfd_set_format */
- _bfd_generic_mkarchive, bfd_false},
- {bfd_false, b_out_write_object_contents, /* bfd_write_contents */
- _bfd_write_archive_contents, bfd_false},
- JUMP_TABLE(aout_32),
- b_out_reloc_type_lookup,
+ HAS_SYMS | HAS_LOCALS | WP_TEXT | BFD_IS_RELAXABLE ),
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
+ '_', /* Symbol leading char. */
+ ' ', /* AR_pad_char. */
+ 16, /* AR_max_namelen. */
+ bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+ bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+ bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data. */
+ bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+ bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+ bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Headers. */
+
+ {_bfd_dummy_target, b_out_object_p, /* bfd_check_format. */
+ bfd_generic_archive_p, _bfd_dummy_target},
+ {bfd_false, b_out_mkobject, /* bfd_set_format. */
+ _bfd_generic_mkarchive, bfd_false},
+ {bfd_false, b_out_write_object_contents, /* bfd_write_contents. */
+ _bfd_write_archive_contents, bfd_false},
+
+ BFD_JUMP_TABLE_GENERIC (aout_32),
+ BFD_JUMP_TABLE_COPY (_bfd_generic),
+ BFD_JUMP_TABLE_CORE (_bfd_nocore),
+ BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd),
+ BFD_JUMP_TABLE_SYMBOLS (aout_32),
+ BFD_JUMP_TABLE_RELOCS (b_out),
+ BFD_JUMP_TABLE_WRITE (b_out),
+ BFD_JUMP_TABLE_LINK (b_out),
+ BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
+
+ & b_out_vec_big_host,
+
+ NULL
};
projects / external / binutils.git / blobdiff