+ along with GAS; see the file COPYING. If not, write to the Free
+ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+ 02111-1307, USA. */
+
+/* This thing should be set up to do byteordering correctly. But... */
+
+#include "as.h"
+#include "subsegs.h"
+#include "obstack.h"
+#include "output-file.h"
+
+/* This looks like a good idea. Let's try turning it on always, for now. */
+#undef BFD_FAST_SECTION_FILL
+#define BFD_FAST_SECTION_FILL
+
+/* The NOP_OPCODE is for the alignment fill value. Fill it with a nop
+ instruction so that the disassembler does not choke on it. */
+#ifndef NOP_OPCODE
+#define NOP_OPCODE 0x00
+#endif
+
+#ifndef TC_ADJUST_RELOC_COUNT
+#define TC_ADJUST_RELOC_COUNT(FIXP,COUNT)
+#endif
+
+#ifndef TC_FORCE_RELOCATION
+#define TC_FORCE_RELOCATION(FIXP) 0
+#endif
+
+#ifndef TC_FORCE_RELOCATION_SECTION
+#define TC_FORCE_RELOCATION_SECTION(FIXP,SEG) TC_FORCE_RELOCATION(FIXP)
+#endif
+
+#ifndef MD_PCREL_FROM_SECTION
+#define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from(FIXP)
+#endif
+
+#ifndef WORKING_DOT_WORD
+extern CONST int md_short_jump_size;
+extern CONST int md_long_jump_size;
+#endif
+
+int symbol_table_frozen;
+void print_fixup PARAMS ((fixS *));
+
+#ifdef BFD_ASSEMBLER
+static void renumber_sections PARAMS ((bfd *, asection *, PTR));
+
+/* We generally attach relocs to frag chains. However, after we have
+ chained these all together into a segment, any relocs we add after
+ that must be attached to a segment. This will include relocs added
+ in md_estimate_size_for_relax, for example. */
+static int frags_chained = 0;
+#endif
+
+#ifndef BFD_ASSEMBLER
+
+#ifndef MANY_SEGMENTS
+struct frag *text_frag_root;
+struct frag *data_frag_root;
+struct frag *bss_frag_root;
+
+struct frag *text_last_frag; /* Last frag in segment. */
+struct frag *data_last_frag; /* Last frag in segment. */
+static struct frag *bss_last_frag; /* Last frag in segment. */
+#endif
+
+#ifndef BFD
+static object_headers headers;
+#endif
+
+long string_byte_count;
+char *next_object_file_charP; /* Tracks object file bytes. */
+
+#ifndef OBJ_VMS
+int magic_number_for_object_file = DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE;
+#endif
+
+#endif /* BFD_ASSEMBLER */
+
+static int n_fixups;
+
+#ifdef BFD_ASSEMBLER
+static fixS *fix_new_internal PARAMS ((fragS *, int where, int size,
+ symbolS *add, symbolS *sub,
+ offsetT offset, int pcrel,
+ bfd_reloc_code_real_type r_type));
+#else
+static fixS *fix_new_internal PARAMS ((fragS *, int where, int size,
+ symbolS *add, symbolS *sub,
+ offsetT offset, int pcrel,
+ int r_type));
+#endif
+#if defined (BFD_ASSEMBLER) || (!defined (BFD) && !defined (OBJ_VMS))
+static long fixup_segment PARAMS ((fixS * fixP, segT this_segment_type));
+#endif
+static relax_addressT relax_align PARAMS ((relax_addressT addr, int align));
+
+/*
+ * fix_new()
+ *
+ * Create a fixS in obstack 'notes'.
+ */
+static fixS *
+fix_new_internal (frag, where, size, add_symbol, sub_symbol, offset, pcrel,
+ r_type)
+ fragS *frag; /* Which frag? */
+ int where; /* Where in that frag? */
+ int size; /* 1, 2, or 4 usually. */
+ symbolS *add_symbol; /* X_add_symbol. */
+ symbolS *sub_symbol; /* X_op_symbol. */
+ offsetT offset; /* X_add_number. */
+ int pcrel; /* TRUE if PC-relative relocation. */
+#ifdef BFD_ASSEMBLER
+ bfd_reloc_code_real_type r_type; /* Relocation type */
+#else
+ int r_type; /* Relocation type */
+#endif
+{
+ fixS *fixP;
+
+ n_fixups++;
+
+ fixP = (fixS *) obstack_alloc (¬es, sizeof (fixS));
+
+ fixP->fx_frag = frag;
+ fixP->fx_where = where;
+ fixP->fx_size = size;
+ /* We've made fx_size a narrow field; check that it's wide enough. */
+ if (fixP->fx_size != size)
+ {
+ as_bad ("field fx_size too small to hold %d", size);
+ abort ();
+ }
+ fixP->fx_addsy = add_symbol;
+ fixP->fx_subsy = sub_symbol;
+ fixP->fx_offset = offset;
+ fixP->fx_pcrel = pcrel;
+ fixP->fx_plt = 0;
+#if defined(NEED_FX_R_TYPE) || defined (BFD_ASSEMBLER)
+ fixP->fx_r_type = r_type;
+#endif
+ fixP->fx_im_disp = 0;
+ fixP->fx_pcrel_adjust = 0;
+ fixP->fx_bit_fixP = 0;
+ fixP->fx_addnumber = 0;
+ fixP->fx_tcbit = 0;
+ fixP->fx_done = 0;
+ fixP->fx_no_overflow = 0;
+ fixP->fx_signed = 0;
+
+#ifdef TC_FIX_TYPE
+ TC_INIT_FIX_DATA(fixP);
+#endif
+
+ as_where (&fixP->fx_file, &fixP->fx_line);
+
+ /* Usually, we want relocs sorted numerically, but while
+ comparing to older versions of gas that have relocs
+ reverse sorted, it is convenient to have this compile
+ time option. xoxorich. */
+
+ {
+
+#ifdef BFD_ASSEMBLER
+ fixS **seg_fix_rootP = (frags_chained
+ ? &seg_info (now_seg)->fix_root
+ : &frchain_now->fix_root);
+ fixS **seg_fix_tailP = (frags_chained
+ ? &seg_info (now_seg)->fix_tail
+ : &frchain_now->fix_tail);
+#endif
+
+#ifdef REVERSE_SORT_RELOCS
+
+ fixP->fx_next = *seg_fix_rootP;
+ *seg_fix_rootP = fixP;
+
+#else /* REVERSE_SORT_RELOCS */
+
+ fixP->fx_next = NULL;
+
+ if (*seg_fix_tailP)
+ (*seg_fix_tailP)->fx_next = fixP;
+ else
+ *seg_fix_rootP = fixP;
+ *seg_fix_tailP = fixP;
+
+#endif /* REVERSE_SORT_RELOCS */
+
+ }
+
+ return fixP;
+}
+
+/* Create a fixup relative to a symbol (plus a constant). */
+
+fixS *
+fix_new (frag, where, size, add_symbol, offset, pcrel, r_type)
+ fragS *frag; /* Which frag? */
+ int where; /* Where in that frag? */
+ int size; /* 1, 2, or 4 usually. */
+ symbolS *add_symbol; /* X_add_symbol. */
+ offsetT offset; /* X_add_number. */
+ int pcrel; /* TRUE if PC-relative relocation. */
+#ifdef BFD_ASSEMBLER
+ bfd_reloc_code_real_type r_type; /* Relocation type */
+#else
+ int r_type; /* Relocation type */
+#endif
+{
+ return fix_new_internal (frag, where, size, add_symbol,
+ (symbolS *) NULL, offset, pcrel, r_type);
+}
+
+/* Create a fixup for an expression. Currently we only support fixups
+ for difference expressions. That is itself more than most object
+ file formats support anyhow. */
+
+fixS *
+fix_new_exp (frag, where, size, exp, pcrel, r_type)
+ fragS *frag; /* Which frag? */
+ int where; /* Where in that frag? */
+ int size; /* 1, 2, or 4 usually. */
+ expressionS *exp; /* Expression. */
+ int pcrel; /* TRUE if PC-relative relocation. */
+#ifdef BFD_ASSEMBLER
+ bfd_reloc_code_real_type r_type; /* Relocation type */
+#else
+ int r_type; /* Relocation type */
+#endif
+{
+ symbolS *add = NULL;
+ symbolS *sub = NULL;
+ offsetT off = 0;
+
+ switch (exp->X_op)
+ {
+ case O_absent:
+ break;
+
+ case O_add:
+ /* This comes up when _GLOBAL_OFFSET_TABLE_+(.-L0) is read, if
+ the difference expression cannot immediately be reduced. */
+ {
+ extern symbolS *make_expr_symbol ();
+ symbolS *stmp = make_expr_symbol (exp);
+ exp->X_op = O_symbol;
+ exp->X_op_symbol = 0;
+ exp->X_add_symbol = stmp;
+ exp->X_add_number = 0;
+ return fix_new_exp (frag, where, size, exp, pcrel, r_type);
+ }
+
+ case O_symbol_rva:
+ add = exp->X_add_symbol;
+ off = exp->X_add_number;
+
+#if defined(BFD_ASSEMBLER)
+ r_type = BFD_RELOC_RVA;
+#else
+#if defined(TC_RVA_RELOC)
+ r_type = TC_RVA_RELOC;
+#else
+ as_fatal("rva not supported");
+#endif
+#endif
+ break;
+
+ case O_uminus:
+ sub = exp->X_add_symbol;
+ off = exp->X_add_number;
+ break;
+
+ case O_subtract:
+ sub = exp->X_op_symbol;
+ /* Fall through. */
+ case O_symbol:
+ add = exp->X_add_symbol;
+ /* Fall through. */
+ case O_constant:
+ off = exp->X_add_number;
+ break;
+
+ default:
+ add = make_expr_symbol (exp);
+ break;
+ }
+
+ return fix_new_internal (frag, where, size, add, sub, off,
+ pcrel, r_type);
+}
+
+/* Append a string onto another string, bumping the pointer along. */
+void
+append (charPP, fromP, length)
+ char **charPP;
+ char *fromP;
+ unsigned long length;
+{
+ /* Don't trust memcpy() of 0 chars. */
+ if (length == 0)
+ return;
+
+ memcpy (*charPP, fromP, length);
+ *charPP += length;
+}
+
+#ifndef BFD_ASSEMBLER
+int section_alignment[SEG_MAXIMUM_ORDINAL];
+#endif
+
+/*
+ * This routine records the largest alignment seen for each segment.
+ * If the beginning of the segment is aligned on the worst-case
+ * boundary, all of the other alignments within it will work. At
+ * least one object format really uses this info.
+ */
+void
+record_alignment (seg, align)
+ /* Segment to which alignment pertains */
+ segT seg;
+ /* Alignment, as a power of 2 (e.g., 1 => 2-byte boundary, 2 => 4-byte
+ boundary, etc.) */
+ int align;
+{
+ if (seg == absolute_section)
+ return;
+#ifdef BFD_ASSEMBLER
+ if (align > bfd_get_section_alignment (stdoutput, seg))
+ bfd_set_section_alignment (stdoutput, seg, align);
+#else
+ if (align > section_alignment[(int) seg])
+ section_alignment[(int) seg] = align;
+#endif
+}
+
+#ifdef BFD_ASSEMBLER
+
+/* Reset the section indices after removing the gas created sections. */
+
+static void
+renumber_sections (abfd, sec, countparg)
+ bfd *abfd;
+ asection *sec;
+ PTR countparg;
+{
+ int *countp = (int *) countparg;
+
+ sec->index = *countp;
+ ++*countp;
+}
+
+#endif /* defined (BFD_ASSEMBLER) */
+
+#if defined (BFD_ASSEMBLER) || ! defined (BFD)
+
+static fragS *
+chain_frchains_together_1 (section, frchp)
+ segT section;
+ struct frchain *frchp;
+{
+ fragS dummy, *prev_frag = &dummy;
+#ifdef BFD_ASSEMBLER
+ fixS fix_dummy, *prev_fix = &fix_dummy;
+#endif
+
+ for (; frchp && frchp->frch_seg == section; frchp = frchp->frch_next)
+ {
+ prev_frag->fr_next = frchp->frch_root;
+ prev_frag = frchp->frch_last;
+ assert (prev_frag->fr_type != 0);
+#ifdef BFD_ASSEMBLER
+ if (frchp->fix_root != (fixS *) NULL)
+ {
+ if (seg_info (section)->fix_root == (fixS *) NULL)
+ seg_info (section)->fix_root = frchp->fix_root;
+ prev_fix->fx_next = frchp->fix_root;
+ seg_info (section)->fix_tail = frchp->fix_tail;
+ prev_fix = frchp->fix_tail;
+ }
+#endif
+ }
+ assert (prev_frag->fr_type != 0);
+ prev_frag->fr_next = 0;
+ return prev_frag;
+}
+
+#endif
+
+#ifdef BFD_ASSEMBLER
+
+static void
+chain_frchains_together (abfd, section, xxx)
+ bfd *abfd; /* unused */
+ segT section;
+ PTR xxx; /* unused */
+{
+ segment_info_type *info;
+
+ /* BFD may have introduced its own sections without using
+ subseg_new, so it is possible that seg_info is NULL. */
+ info = seg_info (section);
+ if (info != (segment_info_type *) NULL)
+ info->frchainP->frch_last
+ = chain_frchains_together_1 (section, info->frchainP);
+
+ /* Now that we've chained the frags together, we must add new fixups
+ to the segment, not to the frag chain. */
+ frags_chained = 1;
+}
+
+#endif
+
+#if !defined (BFD) && !defined (BFD_ASSEMBLER)
+
+void
+remove_subsegs (head, seg, root, last)
+ frchainS *head;
+ int seg;
+ fragS **root;
+ fragS **last;
+{
+ *root = head->frch_root;
+ *last = chain_frchains_together_1 (seg, head);
+}
+
+#endif /* BFD */
+
+#if defined (BFD_ASSEMBLER) || !defined (BFD)
+
+#ifdef BFD_ASSEMBLER
+static void
+cvt_frag_to_fill (sec, fragP)
+ segT sec;
+ fragS *fragP;
+#else
+static void
+cvt_frag_to_fill (headersP, sec, fragP)
+ object_headers *headersP;
+ segT sec;
+ fragS *fragP;
+#endif
+{
+ switch (fragP->fr_type)
+ {
+ case rs_align:
+ case rs_align_code:
+ case rs_org:
+ case rs_space:
+#ifdef HANDLE_ALIGN
+ HANDLE_ALIGN (fragP);
+#endif
+ know (fragP->fr_next != NULL);
+ fragP->fr_offset = (fragP->fr_next->fr_address
+ - fragP->fr_address
+ - fragP->fr_fix) / fragP->fr_var;
+ if (fragP->fr_offset < 0)
+ {
+ as_bad ("attempt to .org/.space backwards? (%ld)",
+ (long) fragP->fr_offset);
+ }
+ fragP->fr_type = rs_fill;
+ break;
+
+ case rs_fill:
+ break;
+
+ case rs_machine_dependent:
+#ifdef BFD_ASSEMBLER
+ md_convert_frag (stdoutput, sec, fragP);
+#else
+ md_convert_frag (headersP, sec, fragP);
+#endif
+
+ assert (fragP->fr_next == NULL || (fragP->fr_next->fr_address - fragP->fr_address == fragP->fr_fix));
+
+ /*
+ * After md_convert_frag, we make the frag into a ".space 0".
+ * Md_convert_frag() should set up any fixSs and constants
+ * required.
+ */
+ frag_wane (fragP);
+ break;
+
+#ifndef WORKING_DOT_WORD
+ case rs_broken_word:
+ {
+ struct broken_word *lie;
+
+ if (fragP->fr_subtype)
+ {
+ fragP->fr_fix += md_short_jump_size;
+ for (lie = (struct broken_word *) (fragP->fr_symbol);
+ lie && lie->dispfrag == fragP;
+ lie = lie->next_broken_word)
+ if (lie->added == 1)
+ fragP->fr_fix += md_long_jump_size;
+ }
+ frag_wane (fragP);
+ }
+ break;
+#endif
+
+ default:
+ BAD_CASE (fragP->fr_type);
+ break;
+ }
+}
+
+#endif /* defined (BFD_ASSEMBLER) || !defined (BFD) */
+
+#ifdef BFD_ASSEMBLER
+static void
+relax_and_size_seg (abfd, sec, xxx)
+ bfd *abfd;
+ asection *sec;
+ PTR xxx;
+{
+ flagword flags;
+ fragS *fragp;
+ segment_info_type *seginfo;
+ int x;
+ valueT size, newsize;
+
+ subseg_change (sec, 0);
+
+ flags = bfd_get_section_flags (abfd, sec);
+
+ seginfo = seg_info (sec);
+ if (seginfo && seginfo->frchainP)
+ {
+ relax_segment (seginfo->frchainP->frch_root, sec);
+ for (fragp = seginfo->frchainP->frch_root; fragp; fragp = fragp->fr_next)
+ cvt_frag_to_fill (sec, fragp);
+ for (fragp = seginfo->frchainP->frch_root;
+ fragp->fr_next;
+ fragp = fragp->fr_next)
+ /* walk to last elt */;
+ size = fragp->fr_address + fragp->fr_fix;
+ }
+ else
+ size = 0;
+
+ if (size > 0 && ! seginfo->bss)
+ flags |= SEC_HAS_CONTENTS;
+
+ /* @@ This is just an approximation. */
+ if (seginfo && seginfo->fix_root)
+ flags |= SEC_RELOC;
+ else
+ flags &= ~SEC_RELOC;
+ x = bfd_set_section_flags (abfd, sec, flags);
+ assert (x == true);
+
+ newsize = md_section_align (sec, size);
+ x = bfd_set_section_size (abfd, sec, newsize);
+ assert (x == true);
+
+ /* If the size had to be rounded up, add some padding in the last
+ non-empty frag. */
+ assert (newsize >= size);
+ if (size != newsize)
+ {
+ fragS *last = seginfo->frchainP->frch_last;
+ fragp = seginfo->frchainP->frch_root;
+ while (fragp->fr_next != last)
+ fragp = fragp->fr_next;
+ last->fr_address = size;
+ fragp->fr_offset += newsize - size;
+ }
+
+#ifdef tc_frob_section
+ tc_frob_section (sec);
+#endif
+#ifdef obj_frob_section
+ obj_frob_section (sec);
+#endif
+}
+
+#ifdef DEBUG2
+static void
+dump_section_relocs (abfd, sec, stream_)
+ bfd *abfd;
+ asection *sec;
+ char *stream_;
+{
+ FILE *stream = (FILE *) stream_;
+ segment_info_type *seginfo = seg_info (sec);
+ fixS *fixp = seginfo->fix_root;
+
+ if (!fixp)
+ return;
+
+ fprintf (stream, "sec %s relocs:\n", sec->name);
+ while (fixp)
+ {
+ symbolS *s = fixp->fx_addsy;
+ if (s)
+ {
+ fprintf (stream, " %08x: %s(%s", fixp, S_GET_NAME (s),
+ s->bsym->section->name);
+ if (s->bsym->flags & BSF_SECTION_SYM)
+ {
+ fprintf (stream, " section sym");
+ if (S_GET_VALUE (s))
+ fprintf (stream, "+%x", S_GET_VALUE (s));
+ }
+ else
+ fprintf (stream, "+%x", S_GET_VALUE (s));
+ fprintf (stream, ")+%x\n", fixp->fx_offset);
+ }
+ else
+ fprintf (stream, " %08x: type %d no sym\n", fixp, fixp->fx_r_type);
+ fixp = fixp->fx_next;
+ }
+}
+#else
+#define dump_section_relocs(ABFD,SEC,STREAM) ((void) 0)
+#endif
+
+#ifndef EMIT_SECTION_SYMBOLS
+#define EMIT_SECTION_SYMBOLS 1
+#endif
+
+static void
+adjust_reloc_syms (abfd, sec, xxx)
+ bfd *abfd;
+ asection *sec;
+ PTR xxx;
+{
+ segment_info_type *seginfo = seg_info (sec);
+ fixS *fixp;
+
+ if (seginfo == NULL)
+ return;
+
+ dump_section_relocs (abfd, sec, stderr);
+
+ for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next)
+ if (fixp->fx_done)
+ /* ignore it */;
+ else if (fixp->fx_addsy)
+ {
+ symbolS *sym;
+ asection *symsec;
+
+ reduce_fixup:
+
+#ifdef DEBUG5
+ fprintf (stderr, "\n\nadjusting fixup:\n");
+ print_fixup (fixp);
+#endif
+
+ sym = fixp->fx_addsy;
+
+ /* All symbols should have already been resolved at this
+ point. It is possible to see unresolved expression
+ symbols, though, since they are not in the regular symbol
+ table. */
+ if (sym != NULL && ! sym->sy_resolved)
+ resolve_symbol_value (sym);
+ if (fixp->fx_subsy != NULL && ! fixp->fx_subsy->sy_resolved)
+ resolve_symbol_value (fixp->fx_subsy);
+
+ /* If this symbol is equated to an undefined symbol, convert
+ the fixup to being against that symbol. */
+ if (sym->sy_value.X_op == O_symbol
+ && (! S_IS_DEFINED (sym) || S_IS_COMMON (sym)))
+ {
+ fixp->fx_offset += sym->sy_value.X_add_number;
+ sym = sym->sy_value.X_add_symbol;
+ fixp->fx_addsy = sym;
+ }
+
+ symsec = S_GET_SEGMENT (sym);
+
+ if (sym != NULL && sym->sy_mri_common)
+ {
+ /* These symbols are handled specially in fixup_segment. */
+ goto done;
+ }
+
+ if (bfd_is_abs_section (symsec))
+ {
+ /* The fixup_segment routine will not use this symbol in a
+ relocation unless TC_FORCE_RELOCATION returns 1. */
+ if (TC_FORCE_RELOCATION (fixp))
+ {
+ fixp->fx_addsy->sy_used_in_reloc = 1;
+#ifdef UNDEFINED_DIFFERENCE_OK
+ if (fixp->fx_subsy != NULL)
+ fixp->fx_subsy->sy_used_in_reloc = 1;
+#endif
+ }
+ goto done;
+ }
+
+ /* If it's one of these sections, assume the symbol is
+ definitely going to be output. The code in
+ md_estimate_size_before_relax in tc-mips.c uses this test
+ as well, so if you change this code you should look at that
+ code. */
+ if (bfd_is_und_section (symsec)
+ || bfd_is_com_section (symsec))
+ {
+ fixp->fx_addsy->sy_used_in_reloc = 1;
+#ifdef UNDEFINED_DIFFERENCE_OK
+ /* We have the difference of an undefined symbol and some
+ other symbol. Make sure to mark the other symbol as used
+ in a relocation so that it will always be output. */
+ if (fixp->fx_subsy)
+ fixp->fx_subsy->sy_used_in_reloc = 1;
+#endif
+ goto done;
+ }
+
+ /* Don't try to reduce relocs which refer to .linkonce
+ sections. It can lead to confusion when a debugging
+ section refers to a .linkonce section. I hope this will
+ always be correct. */
+ if (symsec != sec)
+ {
+ boolean linkonce;
+
+ linkonce = false;
+#ifdef BFD_ASSEMBLER
+ if ((bfd_get_section_flags (stdoutput, symsec) & SEC_LINK_ONCE)
+ != 0)
+ linkonce = true;
+#endif
+#ifdef OBJ_ELF
+ /* The GNU toolchain uses an extension for ELF: a section
+ beginning with the magic string .gnu.linkonce is a
+ linkonce section. */
+ if (strncmp (segment_name (symsec), ".gnu.linkonce",
+ sizeof ".gnu.linkonce" - 1) == 0)
+ linkonce = true;
+#endif
+
+ if (linkonce)
+ {
+ fixp->fx_addsy->sy_used_in_reloc = 1;
+#ifdef UNDEFINED_DIFFERENCE_OK
+ if (fixp->fx_subsy != NULL)
+ fixp->fx_subsy->sy_used_in_reloc = 1;
+#endif
+ goto done;
+ }
+ }
+
+ /* Since we're reducing to section symbols, don't attempt to reduce
+ anything that's already using one. */
+ if (sym->bsym->flags & BSF_SECTION_SYM)
+ {
+ fixp->fx_addsy->sy_used_in_reloc = 1;
+ goto done;
+ }
+
+ /* Is there some other reason we can't adjust this one? (E.g.,
+ call/bal links in i960-bout symbols.) */
+#ifdef obj_fix_adjustable
+ if (! obj_fix_adjustable (fixp))
+ {
+ fixp->fx_addsy->sy_used_in_reloc = 1;
+ goto done;
+ }
+#endif
+
+ /* Is there some other (target cpu dependent) reason we can't adjust
+ this one? (E.g. relocations involving function addresses on
+ the PA. */
+#ifdef tc_fix_adjustable
+ if (! tc_fix_adjustable (fixp))
+ {
+ fixp->fx_addsy->sy_used_in_reloc = 1;
+ goto done;
+ }
+#endif
+
+ /* If the section symbol isn't going to be output, the relocs
+ at least should still work. If not, figure out what to do
+ when we run into that case.
+
+ We refetch the segment when calling section_symbol, rather
+ than using symsec, because S_GET_VALUE may wind up changing
+ the section when it calls resolve_symbol_value. */
+ fixp->fx_offset += S_GET_VALUE (sym);
+ fixp->fx_addsy = section_symbol (S_GET_SEGMENT (sym));
+ fixp->fx_addsy->sy_used_in_reloc = 1;
+
+ done:
+ ;
+ }
+#if 1/*def RELOC_REQUIRES_SYMBOL*/
+ else
+ {
+ /* There was no symbol required by this relocation. However,
+ BFD doesn't really handle relocations without symbols well.
+ (At least, the COFF support doesn't.) So for now we fake up
+ a local symbol in the absolute section. */
+
+ fixp->fx_addsy = section_symbol (absolute_section);
+/* fixp->fx_addsy->sy_used_in_reloc = 1; */
+ }
+#endif
+
+ dump_section_relocs (abfd, sec, stderr);
+}
+
+static void
+write_relocs (abfd, sec, xxx)
+ bfd *abfd;
+ asection *sec;
+ PTR xxx;
+{
+ segment_info_type *seginfo = seg_info (sec);
+ int i;
+ unsigned int n;
+ arelent **relocs;
+ fixS *fixp;
+ char *err;
+
+ /* If seginfo is NULL, we did not create this section; don't do
+ anything with it. */
+ if (seginfo == NULL)
+ return;
+
+ fixup_segment (seginfo->fix_root, sec);
+
+ n = 0;
+ for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next)
+ n++;
+
+#ifndef RELOC_EXPANSION_POSSIBLE
+ /* Set up reloc information as well. */
+ relocs = (arelent **) bfd_alloc_by_size_t (stdoutput,
+ n * sizeof (arelent *));
+ memset ((char*)relocs, 0, n * sizeof (arelent*));
+
+ i = 0;
+ for (fixp = seginfo->fix_root; fixp != (fixS *) NULL; fixp = fixp->fx_next)
+ {
+ arelent *reloc;
+ bfd_reloc_status_type s;
+ symbolS *sym;
+
+ if (fixp->fx_done)
+ {
+ n--;
+ continue;
+ }
+
+ /* If this is an undefined symbol which was equated to another
+ symbol, then use generate the reloc against the latter symbol
+ rather than the former. */
+ sym = fixp->fx_addsy;
+ while (sym->sy_value.X_op == O_symbol
+ && (! S_IS_DEFINED (sym) || S_IS_COMMON (sym)))
+ {
+ symbolS *n;
+
+ /* We must avoid looping, as that can occur with a badly
+ written program. */
+ n = sym->sy_value.X_add_symbol;
+ if (n == sym)
+ break;
+ fixp->fx_offset += sym->sy_value.X_add_number;
+ sym = n;
+ }
+ fixp->fx_addsy = sym;
+
+ reloc = tc_gen_reloc (sec, fixp);
+ if (!reloc)
+ {
+ n--;
+ continue;
+ }
+
+#if 0
+ /* This test is triggered inappropriately for the SH. */
+ if (fixp->fx_where + fixp->fx_size
+ > fixp->fx_frag->fr_fix + fixp->fx_frag->fr_offset)
+ abort ();
+#endif
+
+ s = bfd_install_relocation (stdoutput, reloc,
+ fixp->fx_frag->fr_literal,
+ fixp->fx_frag->fr_address,
+ sec, &err);
+ switch (s)
+ {
+ case bfd_reloc_ok:
+ break;
+ case bfd_reloc_overflow:
+ as_bad_where (fixp->fx_file, fixp->fx_line, "relocation overflow");
+ break;
+ default:
+ as_fatal ("%s:%u: bad return from bfd_perform_relocation",
+ fixp->fx_file, fixp->fx_line);
+ }
+ relocs[i++] = reloc;
+ }
+#else
+ n = n * MAX_RELOC_EXPANSION;
+ /* Set up reloc information as well. */
+ relocs = (arelent **) bfd_alloc_by_size_t (stdoutput,
+ n * sizeof (arelent *));
+
+ i = 0;
+ for (fixp = seginfo->fix_root; fixp != (fixS *) NULL; fixp = fixp->fx_next)
+ {
+ arelent **reloc;
+ char *data;
+ bfd_reloc_status_type s;
+ symbolS *sym;
+ int j;
+
+ if (fixp->fx_done)
+ {
+ n--;
+ continue;
+ }
+
+ /* If this is an undefined symbol which was equated to another
+ symbol, then use generate the reloc against the latter symbol
+ rather than the former. */
+ sym = fixp->fx_addsy;
+ while (sym->sy_value.X_op == O_symbol
+ && (! S_IS_DEFINED (sym) || S_IS_COMMON (sym)))
+ sym = sym->sy_value.X_add_symbol;
+ fixp->fx_addsy = sym;
+
+ reloc = tc_gen_reloc (sec, fixp);
+
+ for (j = 0; reloc[j]; j++)
+ {
+ relocs[i++] = reloc[j];
+ assert(i <= n);
+ }
+ data = fixp->fx_frag->fr_literal + fixp->fx_where;
+ if (fixp->fx_where + fixp->fx_size
+ > fixp->fx_frag->fr_fix + fixp->fx_frag->fr_offset)
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ "internal error: fixup not contained within frag");
+ for (j = 0; reloc[j]; j++)
+ {
+ s = bfd_install_relocation (stdoutput, reloc[j],
+ fixp->fx_frag->fr_literal,
+ fixp->fx_frag->fr_address,
+ sec, &err);
+ switch (s)
+ {
+ case bfd_reloc_ok:
+ break;
+ case bfd_reloc_overflow:
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ "relocation overflow");
+ break;
+ default:
+ as_fatal ("%s:%u: bad return from bfd_perform_relocation",
+ fixp->fx_file, fixp->fx_line);
+ }
+ }
+ }
+ n = i;
+#endif
+
+#ifdef DEBUG4
+ {
+ int i, j, nsyms;
+ asymbol **sympp;
+ sympp = bfd_get_outsymbols (stdoutput);
+ nsyms = bfd_get_symcount (stdoutput);
+ for (i = 0; i < n; i++)
+ if (((*relocs[i]->sym_ptr_ptr)->flags & BSF_SECTION_SYM) == 0)
+ {
+ for (j = 0; j < nsyms; j++)
+ if (sympp[j] == *relocs[i]->sym_ptr_ptr)
+ break;
+ if (j == nsyms)
+ abort ();
+ }
+ }
+#endif
+
+ if (n)
+ bfd_set_reloc (stdoutput, sec, relocs, n);
+ else
+ bfd_set_section_flags (abfd, sec,
+ (bfd_get_section_flags (abfd, sec)
+ & (flagword) ~SEC_RELOC));
+
+#ifdef DEBUG3
+ {
+ int i;
+ arelent *r;
+ asymbol *s;
+ fprintf (stderr, "relocs for sec %s\n", sec->name);
+ for (i = 0; i < n; i++)
+ {
+ r = relocs[i];
+ s = *r->sym_ptr_ptr;
+ fprintf (stderr, " reloc %2d @%08x off %4x : sym %-10s addend %x\n",
+ i, r, r->address, s->name, r->addend);
+ }
+ }
+#endif
+}
+
+static void
+write_contents (abfd, sec, xxx)
+ bfd *abfd;
+ asection *sec;
+ PTR xxx;
+{
+ segment_info_type *seginfo = seg_info (sec);
+ unsigned long offset = 0;
+ fragS *f;
+
+ /* Write out the frags. */
+ if (seginfo == NULL
+ || ! (bfd_get_section_flags (abfd, sec) & SEC_HAS_CONTENTS))
+ return;
+
+ for (f = seginfo->frchainP->frch_root;
+ f;
+ f = f->fr_next)
+ {
+ int x;
+ unsigned long fill_size;
+ char *fill_literal;
+ long count;
+
+ assert (f->fr_type == rs_fill);
+ if (f->fr_fix)
+ {
+ x = bfd_set_section_contents (stdoutput, sec,
+ f->fr_literal, (file_ptr) offset,
+ (bfd_size_type) f->fr_fix);
+ if (x == false)
+ {
+ bfd_perror (stdoutput->filename);
+ as_perror ("FATAL: Can't write %s", stdoutput->filename);
+ exit (EXIT_FAILURE);
+ }
+ offset += f->fr_fix;
+ }
+ fill_literal = f->fr_literal + f->fr_fix;
+ fill_size = f->fr_var;
+ count = f->fr_offset;
+ assert (count >= 0);
+ if (fill_size && count)
+ {
+ char buf[256];
+ if (fill_size > sizeof(buf))
+ {
+ /* Do it the old way. Can this ever happen? */
+ while (count--)
+ {
+ x = bfd_set_section_contents (stdoutput, sec,
+ fill_literal,
+ (file_ptr) offset,
+ (bfd_size_type) fill_size);
+ if (x == false)
+ {
+ bfd_perror (stdoutput->filename);
+ as_perror ("FATAL: Can't write %s", stdoutput->filename);
+ exit (EXIT_FAILURE);
+ }
+ offset += fill_size;
+ }
+ }
+ else
+ {
+ /* Build a buffer full of fill objects and output it as
+ often as necessary. This saves on the overhead of
+ potentially lots of bfd_set_section_contents calls. */
+ int n_per_buf, i;
+ if (fill_size == 1)
+ {
+ n_per_buf = sizeof (buf);
+ memset (buf, *fill_literal, n_per_buf);
+ }
+ else
+ {
+ char *bufp;
+ n_per_buf = sizeof(buf)/fill_size;
+ for (i = n_per_buf, bufp = buf; i; i--, bufp += fill_size)
+ memcpy(bufp, fill_literal, fill_size);
+ }
+ for (; count > 0; count -= n_per_buf)
+ {
+ n_per_buf = n_per_buf > count ? count : n_per_buf;
+ x = bfd_set_section_contents (stdoutput, sec,
+ buf, (file_ptr) offset,
+ (bfd_size_type) n_per_buf * fill_size);
+ if (x != true)
+ as_fatal ("Cannot write to output file.");
+ offset += n_per_buf * fill_size;
+ }
+ }
+ }
+ }
+}
+#endif
+
+#if defined(BFD_ASSEMBLER) || (!defined (BFD) && !defined(OBJ_AOUT))
+static void
+merge_data_into_text ()
+{
+#if defined(BFD_ASSEMBLER) || defined(MANY_SEGMENTS)
+ seg_info (text_section)->frchainP->frch_last->fr_next =
+ seg_info (data_section)->frchainP->frch_root;
+ seg_info (text_section)->frchainP->frch_last =
+ seg_info (data_section)->frchainP->frch_last;
+ seg_info (data_section)->frchainP = 0;
+#else
+ fixS *tmp;
+
+ text_last_frag->fr_next = data_frag_root;
+ text_last_frag = data_last_frag;
+ data_last_frag = NULL;
+ data_frag_root = NULL;
+ if (text_fix_root)
+ {
+ for (tmp = text_fix_root; tmp->fx_next; tmp = tmp->fx_next);;
+ tmp->fx_next = data_fix_root;
+ text_fix_tail = data_fix_tail;
+ }
+ else
+ text_fix_root = data_fix_root;
+ data_fix_root = NULL;
+#endif
+}
+#endif /* BFD_ASSEMBLER || (! BFD && ! OBJ_AOUT) */
+
+#if !defined (BFD_ASSEMBLER) && !defined (BFD)
+static void
+relax_and_size_all_segments ()
+{
+ fragS *fragP;
+
+ relax_segment (text_frag_root, SEG_TEXT);
+ relax_segment (data_frag_root, SEG_DATA);
+ relax_segment (bss_frag_root, SEG_BSS);
+ /*
+ * Now the addresses of frags are correct within the segment.
+ */
+
+ know (text_last_frag->fr_type == rs_fill && text_last_frag->fr_offset == 0);
+ H_SET_TEXT_SIZE (&headers, text_last_frag->fr_address);
+ text_last_frag->fr_address = H_GET_TEXT_SIZE (&headers);
+
+ /*
+ * Join the 2 segments into 1 huge segment.
+ * To do this, re-compute every rn_address in the SEG_DATA frags.
+ * Then join the data frags after the text frags.
+ *
+ * Determine a_data [length of data segment].
+ */
+ if (data_frag_root)
+ {
+ register relax_addressT slide;
+
+ know ((text_last_frag->fr_type == rs_fill) && (text_last_frag->fr_offset == 0));
+
+ H_SET_DATA_SIZE (&headers, data_last_frag->fr_address);
+ data_last_frag->fr_address = H_GET_DATA_SIZE (&headers);
+ slide = H_GET_TEXT_SIZE (&headers); /* & in file of the data segment. */
+#ifdef OBJ_BOUT
+#define RoundUp(N,S) (((N)+(S)-1)&-(S))
+ /* For b.out: If the data section has a strict alignment
+ requirement, its load address in the .o file will be
+ rounded up from the size of the text section. These
+ two values are *not* the same! Similarly for the bss
+ section.... */
+ slide = RoundUp (slide, 1 << section_alignment[SEG_DATA]);
+#endif
+
+ for (fragP = data_frag_root; fragP; fragP = fragP->fr_next)
+ {
+ fragP->fr_address += slide;
+ } /* for each data frag */
+
+ know (text_last_frag != 0);
+ text_last_frag->fr_next = data_frag_root;
+ }
+ else
+ {
+ H_SET_DATA_SIZE (&headers, 0);
+ }
+
+#ifdef OBJ_BOUT
+ /* See above comments on b.out data section address. */
+ {
+ long bss_vma;
+ if (data_last_frag == 0)
+ bss_vma = H_GET_TEXT_SIZE (&headers);
+ else
+ bss_vma = data_last_frag->fr_address;
+ bss_vma = RoundUp (bss_vma, 1 << section_alignment[SEG_BSS]);
+ bss_address_frag.fr_address = bss_vma;
+ }
+#else /* ! OBJ_BOUT */
+ bss_address_frag.fr_address = (H_GET_TEXT_SIZE (&headers) +
+ H_GET_DATA_SIZE (&headers));
+
+#endif /* ! OBJ_BOUT */
+
+ /* Slide all the frags */
+ if (bss_frag_root)
+ {
+ relax_addressT slide = bss_address_frag.fr_address;
+
+ for (fragP = bss_frag_root; fragP; fragP = fragP->fr_next)
+ {
+ fragP->fr_address += slide;
+ } /* for each bss frag */
+ }
+
+ if (bss_last_frag)
+ H_SET_BSS_SIZE (&headers,
+ bss_last_frag->fr_address - bss_frag_root->fr_address);
+ else
+ H_SET_BSS_SIZE (&headers, 0);
+}
+#endif /* ! BFD_ASSEMBLER && ! BFD */
+
+#if defined (BFD_ASSEMBLER) || !defined (BFD)
+
+#ifdef BFD_ASSEMBLER
+static void
+set_symtab ()
+{
+ int nsyms;
+ asymbol **asympp;
+ symbolS *symp;
+ boolean result;
+ extern PTR bfd_alloc PARAMS ((bfd *, size_t));
+
+ /* Count symbols. We can't rely on a count made by the loop in
+ write_object_file, because *_frob_file may add a new symbol or
+ two. */
+ nsyms = 0;
+ for (symp = symbol_rootP; symp; symp = symbol_next (symp))
+ nsyms++;
+
+ if (nsyms)
+ {
+ int i;
+
+ asympp = (asymbol **) bfd_alloc (stdoutput,
+ nsyms * sizeof (asymbol *));
+ symp = symbol_rootP;
+ for (i = 0; i < nsyms; i++, symp = symbol_next (symp))
+ {
+ asympp[i] = symp->bsym;
+ symp->written = 1;
+ }
+ }
+ else
+ asympp = 0;
+ result = bfd_set_symtab (stdoutput, asympp, nsyms);
+ assert (result == true);
+ symbol_table_frozen = 1;
+}
+#endif
+
+void
+write_object_file ()
+{
+ struct frchain *frchainP; /* Track along all frchains. */
+#if ! defined (BFD_ASSEMBLER) || ! defined (WORKING_DOT_WORD)
+ fragS *fragP; /* Track along all frags. */
+#endif
+
+ /* Do we really want to write it? */
+ {
+ int n_warns, n_errs;
+ n_warns = had_warnings ();
+ n_errs = had_errors ();
+ /* The -Z flag indicates that an object file should be generated,
+ regardless of warnings and errors. */
+ if (flag_always_generate_output)
+ {
+ if (n_warns || n_errs)
+ as_warn ("%d error%s, %d warning%s, generating bad object file.\n",
+ n_errs, n_errs == 1 ? "" : "s",
+ n_warns, n_warns == 1 ? "" : "s");
+ }
+ else
+ {
+ if (n_errs)
+ as_fatal ("%d error%s, %d warning%s, no object file generated.\n",
+ n_errs, n_errs == 1 ? "" : "s",
+ n_warns, n_warns == 1 ? "" : "s");
+ }
+ }
+
+#ifdef OBJ_VMS
+ /* Under VMS we try to be compatible with VAX-11 "C". Thus, we call
+ a routine to check for the definition of the procedure "_main",
+ and if so -- fix it up so that it can be program entry point. */
+ vms_check_for_main ();
+#endif /* OBJ_VMS */
+
+ /* After every sub-segment, we fake an ".align ...". This conforms to
+ BSD4.2 brane-damage. We then fake ".fill 0" because that is the kind of
+ frag that requires least thought. ".align" frags like to have a
+ following frag since that makes calculating their intended length
+ trivial.
+
+ @@ Is this really necessary?? */
+#ifndef SUB_SEGMENT_ALIGN
+#ifdef BFD_ASSEMBLER
+#define SUB_SEGMENT_ALIGN(SEG) (0)
+#else
+#define SUB_SEGMENT_ALIGN(SEG) (2)
+#endif
+#endif
+ for (frchainP = frchain_root; frchainP; frchainP = frchainP->frch_next)
+ {
+ subseg_set (frchainP->frch_seg, frchainP->frch_subseg);
+ frag_align (SUB_SEGMENT_ALIGN (now_seg), NOP_OPCODE);
+ /* frag_align will have left a new frag.
+ Use this last frag for an empty ".fill".
+
+ For this segment ...
+ Create a last frag. Do not leave a "being filled in frag". */
+ frag_wane (frag_now);
+ frag_now->fr_fix = 0;
+ know (frag_now->fr_next == NULL);
+ }
+
+ /* From now on, we don't care about sub-segments. Build one frag chain
+ for each segment. Linked thru fr_next. */
+
+#ifdef BFD_ASSEMBLER
+ /* Remove the sections created by gas for its own purposes. */
+ {
+ asection **seclist, *sec;
+ int i;
+
+ seclist = &stdoutput->sections;
+ while (seclist && *seclist)
+ {
+ sec = *seclist;
+ while (sec == reg_section || sec == expr_section)
+ {
+ sec = sec->next;
+ *seclist = sec;
+ stdoutput->section_count--;
+ if (!sec)
+ break;
+ }
+ if (*seclist)
+ seclist = &(*seclist)->next;
+ }
+ i = 0;
+ bfd_map_over_sections (stdoutput, renumber_sections, &i);
+ }
+
+ bfd_map_over_sections (stdoutput, chain_frchains_together, (char *) 0);
+#else
+ remove_subsegs (frchain_root, SEG_TEXT, &text_frag_root, &text_last_frag);
+ remove_subsegs (data0_frchainP, SEG_DATA, &data_frag_root, &data_last_frag);
+ remove_subsegs (bss0_frchainP, SEG_BSS, &bss_frag_root, &bss_last_frag);
+#endif
+
+ /* We have two segments. If user gave -R flag, then we must put the
+ data frags into the text segment. Do this before relaxing so
+ we know to take advantage of -R and make shorter addresses. */
+#if !defined (OBJ_AOUT) || defined (BFD_ASSEMBLER)
+ if (flag_readonly_data_in_text)
+ {
+ merge_data_into_text ();
+ }
+#endif
+
+#ifdef BFD_ASSEMBLER
+ bfd_map_over_sections (stdoutput, relax_and_size_seg, (char *) 0);
+#else
+ relax_and_size_all_segments ();
+#endif /* BFD_ASSEMBLER */
+
+#ifndef BFD_ASSEMBLER
+ /*
+ *
+ * Crawl the symbol chain.
+ *
+ * For each symbol whose value depends on a frag, take the address of
+ * that frag and subsume it into the value of the symbol.
+ * After this, there is just one way to lookup a symbol value.
+ * Values are left in their final state for object file emission.
+ * We adjust the values of 'L' local symbols, even if we do
+ * not intend to emit them to the object file, because their values
+ * are needed for fix-ups.
+ *
+ * Unless we saw a -L flag, remove all symbols that begin with 'L'
+ * from the symbol chain. (They are still pointed to by the fixes.)
+ *
+ * Count the remaining symbols.
+ * Assign a symbol number to each symbol.
+ * Count the number of string-table chars we will emit.
+ * Put this info into the headers as appropriate.
+ *
+ */
+ know (zero_address_frag.fr_address == 0);
+ string_byte_count = sizeof (string_byte_count);
+
+ obj_crawl_symbol_chain (&headers);
+
+ if (string_byte_count == sizeof (string_byte_count))
+ string_byte_count = 0;
+
+ H_SET_STRING_SIZE (&headers, string_byte_count);
+
+ /*
+ * Addresses of frags now reflect addresses we use in the object file.
+ * Symbol values are correct.
+ * Scan the frags, converting any ".org"s and ".align"s to ".fill"s.
+ * Also converting any machine-dependent frags using md_convert_frag();
+ */
+ subseg_change (SEG_TEXT, 0);
+
+ for (fragP = text_frag_root; fragP; fragP = fragP->fr_next)
+ {
+ cvt_frag_to_fill (&headers, SEG_TEXT, fragP);
+
+ /* Some assert macros don't work with # directives mixed in. */
+#ifndef NDEBUG
+ if (!(fragP->fr_next == NULL
+#ifdef OBJ_BOUT
+ || fragP->fr_next == data_frag_root
+#endif
+ || ((fragP->fr_next->fr_address - fragP->fr_address)
+ == (fragP->fr_fix + fragP->fr_offset * fragP->fr_var))))
+ abort ();
+#endif
+ }
+#endif /* ! BFD_ASSEMBLER */
+
+#ifndef WORKING_DOT_WORD
+ {
+ struct broken_word *lie;
+ struct broken_word **prevP;
+
+ prevP = &broken_words;
+ for (lie = broken_words; lie; lie = lie->next_broken_word)
+ if (!lie->added)
+ {
+ expressionS exp;
+
+ exp.X_op = O_subtract;
+ exp.X_add_symbol = lie->add;
+ exp.X_op_symbol = lie->sub;
+ exp.X_add_number = lie->addnum;
+#ifdef BFD_ASSEMBLER
+#ifdef TC_CONS_FIX_NEW
+ TC_CONS_FIX_NEW (lie->frag,
+ lie->word_goes_here - lie->frag->fr_literal,
+ 2, &exp);
+#else
+ fix_new_exp (lie->frag,
+ lie->word_goes_here - lie->frag->fr_literal,
+ 2, &exp, 0, BFD_RELOC_16);
+#endif
+#else
+#if defined(TC_SPARC) || defined(TC_A29K) || defined(NEED_FX_R_TYPE)
+ fix_new_exp (lie->frag,
+ lie->word_goes_here - lie->frag->fr_literal,
+ 2, &exp, 0, NO_RELOC);
+#else
+#ifdef TC_NS32K
+ fix_new_ns32k_exp (lie->frag,
+ lie->word_goes_here - lie->frag->fr_literal,
+ 2, &exp, 0, 0, 2, 0, 0);
+#else
+ fix_new_exp (lie->frag,
+ lie->word_goes_here - lie->frag->fr_literal,
+ 2, &exp, 0, 0);
+#endif /* TC_NS32K */
+#endif /* TC_SPARC|TC_A29K|NEED_FX_R_TYPE */
+#endif /* BFD_ASSEMBLER */
+ *prevP = lie->next_broken_word;
+ }
+ else
+ prevP = &(lie->next_broken_word);
+
+ for (lie = broken_words; lie;)
+ {
+ struct broken_word *untruth;
+ char *table_ptr;
+ addressT table_addr;
+ addressT from_addr, to_addr;
+ int n, m;
+
+ fragP = lie->dispfrag;
+
+ /* Find out how many broken_words go here. */
+ n = 0;
+ for (untruth = lie; untruth && untruth->dispfrag == fragP; untruth = untruth->next_broken_word)
+ if (untruth->added == 1)
+ n++;
+
+ table_ptr = lie->dispfrag->fr_opcode;
+ table_addr = lie->dispfrag->fr_address + (table_ptr - lie->dispfrag->fr_literal);
+ /* Create the jump around the long jumps. This is a short
+ jump from table_ptr+0 to table_ptr+n*long_jump_size. */
+ from_addr = table_addr;
+ to_addr = table_addr + md_short_jump_size + n * md_long_jump_size;
+ md_create_short_jump (table_ptr, from_addr, to_addr, lie->dispfrag, lie->add);
+ table_ptr += md_short_jump_size;
+ table_addr += md_short_jump_size;
+
+ for (m = 0; lie && lie->dispfrag == fragP; m++, lie = lie->next_broken_word)
+ {
+ if (lie->added == 2)
+ continue;
+ /* Patch the jump table */
+ /* This is the offset from ??? to table_ptr+0 */
+ to_addr = table_addr - S_GET_VALUE (lie->sub);
+#ifdef BFD_ASSEMBLER
+ to_addr -= lie->sub->sy_frag->fr_address;
+#endif
+ md_number_to_chars (lie->word_goes_here, to_addr, 2);
+ for (untruth = lie->next_broken_word; untruth && untruth->dispfrag == fragP; untruth = untruth->next_broken_word)
+ {
+ if (untruth->use_jump == lie)
+ md_number_to_chars (untruth->word_goes_here, to_addr, 2);
+ }
+
+ /* Install the long jump */
+ /* this is a long jump from table_ptr+0 to the final target */
+ from_addr = table_addr;
+ to_addr = S_GET_VALUE (lie->add) + lie->addnum;
+#ifdef BFD_ASSEMBLER
+ to_addr += lie->add->sy_frag->fr_address;
+#endif
+ md_create_long_jump (table_ptr, from_addr, to_addr, lie->dispfrag, lie->add);
+ table_ptr += md_long_jump_size;
+ table_addr += md_long_jump_size;
+ }
+ }
+ }
+#endif /* not WORKING_DOT_WORD */
+
+#ifndef BFD_ASSEMBLER
+#ifndef OBJ_VMS
+ { /* not vms */
+ char *the_object_file;
+ long object_file_size;
+ /*
+ * Scan every FixS performing fixups. We had to wait until now to do
+ * this because md_convert_frag() may have made some fixSs.
+ */
+ int trsize, drsize;
+
+ subseg_change (SEG_TEXT, 0);
+ trsize = md_reloc_size * fixup_segment (text_fix_root, SEG_TEXT);
+ subseg_change (SEG_DATA, 0);
+ drsize = md_reloc_size * fixup_segment (data_fix_root, SEG_DATA);
+ H_SET_RELOCATION_SIZE (&headers, trsize, drsize);
+
+ /* FIXME move this stuff into the pre-write-hook */
+ H_SET_MAGIC_NUMBER (&headers, magic_number_for_object_file);
+ H_SET_ENTRY_POINT (&headers, 0);
projects / binutils.git / blobdiff