/* write.c - emit .o file
- Copyright (C) 1986, 87, 90, 91, 92, 93, 94, 95, 1996
- Free Software Foundation, Inc.
+ Copyright (C) 1986-2015 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GAS 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, or (at your option)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
GAS is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- 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. */
+ along with GAS; see the file COPYING. If not, write to the Free
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
-/* This thing should be set up to do byteordering correctly. But... */
+/* This thing should be set up to do byteordering correctly. But... */
#include "as.h"
#include "subsegs.h"
#include "obstack.h"
#include "output-file.h"
+#include "dwarf2dbg.h"
+#include "libbfd.h"
+#include "compress-debug.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
+#ifndef TC_FORCE_RELOCATION
+#define TC_FORCE_RELOCATION(FIX) \
+ (generic_force_reloc (FIX))
+#endif
-/* 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
+#ifndef TC_FORCE_RELOCATION_ABS
+#define TC_FORCE_RELOCATION_ABS(FIX) \
+ (TC_FORCE_RELOCATION (FIX))
#endif
-#ifndef TC_ADJUST_RELOC_COUNT
-#define TC_ADJUST_RELOC_COUNT(FIXP,COUNT)
+#ifndef TC_FORCE_RELOCATION_LOCAL
+#define TC_FORCE_RELOCATION_LOCAL(FIX) \
+ (!(FIX)->fx_pcrel \
+ || TC_FORCE_RELOCATION (FIX))
#endif
-#ifndef TC_FORCE_RELOCATION
-#define TC_FORCE_RELOCATION(FIXP) 0
+#ifndef TC_FORCE_RELOCATION_SUB_SAME
+#define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEG) \
+ (! SEG_NORMAL (SEG))
#endif
-#ifndef TC_FORCE_RELOCATION_SECTION
-#define TC_FORCE_RELOCATION_SECTION(FIXP,SEG) TC_FORCE_RELOCATION(FIXP)
+#ifndef md_register_arithmetic
+# define md_register_arithmetic 1
#endif
-#ifndef MD_PCREL_FROM_SECTION
-#define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from(FIXP)
+#ifndef TC_FORCE_RELOCATION_SUB_ABS
+#define TC_FORCE_RELOCATION_SUB_ABS(FIX, SEG) \
+ (!md_register_arithmetic && (SEG) == reg_section)
#endif
-#ifndef WORKING_DOT_WORD
-extern CONST int md_short_jump_size;
-extern CONST int md_long_jump_size;
+#ifndef TC_FORCE_RELOCATION_SUB_LOCAL
+#ifdef DIFF_EXPR_OK
+#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) \
+ (!md_register_arithmetic && (SEG) == reg_section)
+#else
+#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) 1
+#endif
#endif
-int symbol_table_frozen;
-void print_fixup PARAMS ((fixS *));
+#ifndef TC_VALIDATE_FIX_SUB
+#ifdef UNDEFINED_DIFFERENCE_OK
+/* The PA needs this for PIC code generation. */
+#define TC_VALIDATE_FIX_SUB(FIX, SEG) \
+ (md_register_arithmetic || (SEG) != reg_section)
+#else
+#define TC_VALIDATE_FIX_SUB(FIX, SEG) \
+ ((md_register_arithmetic || (SEG) != reg_section) \
+ && ((FIX)->fx_r_type == BFD_RELOC_GPREL32 \
+ || (FIX)->fx_r_type == BFD_RELOC_GPREL16))
+#endif
+#endif
-#ifdef BFD_ASSEMBLER
-static void renumber_sections PARAMS ((bfd *, asection *, PTR));
+#ifndef TC_LINKRELAX_FIXUP
+#define TC_LINKRELAX_FIXUP(SEG) 1
+#endif
-/* 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;
+#ifndef MD_APPLY_SYM_VALUE
+#define MD_APPLY_SYM_VALUE(FIX) 1
#endif
-#ifndef BFD_ASSEMBLER
+#ifndef TC_FINALIZE_SYMS_BEFORE_SIZE_SEG
+#define TC_FINALIZE_SYMS_BEFORE_SIZE_SEG 1
+#endif
-#ifndef MANY_SEGMENTS
-struct frag *text_frag_root;
-struct frag *data_frag_root;
-struct frag *bss_frag_root;
+#ifndef MD_PCREL_FROM_SECTION
+#define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from (FIX)
+#endif
-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. */
+#ifndef TC_FAKE_LABEL
+#define TC_FAKE_LABEL(NAME) (strcmp ((NAME), FAKE_LABEL_NAME) == 0)
#endif
-#ifndef BFD
-static object_headers headers;
+/* Positive values of TC_FX_SIZE_SLACK allow a target to define
+ fixups that far past the end of a frag. Having such fixups
+ is of course most most likely a bug in setting fx_size correctly.
+ A negative value disables the fixup check entirely, which is
+ appropriate for something like the Renesas / SuperH SH_COUNT
+ reloc. */
+#ifndef TC_FX_SIZE_SLACK
+#define TC_FX_SIZE_SLACK(FIX) 0
#endif
-long string_byte_count;
-char *next_object_file_charP; /* Tracks object file bytes. */
+/* Used to control final evaluation of expressions. */
+int finalize_syms = 0;
-#ifndef OBJ_VMS
-int magic_number_for_object_file = DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE;
-#endif
+int symbol_table_frozen;
-#endif /* BFD_ASSEMBLER */
+symbolS *abs_section_sym;
+
+/* Remember the value of dot when parsing expressions. */
+addressT dot_value;
+
+/* The frag that dot_value is based from. */
+fragS *dot_frag;
+
+/* Relocs generated by ".reloc" pseudo. */
+struct reloc_list* reloc_list;
+
+void print_fixup (fixS *);
+
+/* 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;
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));
+#define RELOC_ENUM enum bfd_reloc_code_real
+
+/* Create a fixS in obstack 'notes'. */
-/*
- * 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
+fix_new_internal (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. */
+ RELOC_ENUM r_type /* Relocation type. */,
+ int at_beginning) /* Add to the start of the list? */
{
fixS *fixP;
/* 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);
+ 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_dot_value = dot_value;
+ fixP->fx_dot_frag = dot_frag;
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_tcbit2 = 0;
fixP->fx_done = 0;
+ fixP->fx_no_overflow = 0;
+ fixP->fx_signed = 0;
+
+#ifdef USING_CGEN
+ fixP->fx_cgen.insn = NULL;
+ fixP->fx_cgen.opinfo = 0;
+#endif
#ifdef TC_FIX_TYPE
- TC_INIT_FIX_DATA(fixP);
+ 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;
+ if (at_beginning)
+ {
+ fixP->fx_next = *seg_fix_rootP;
+ *seg_fix_rootP = fixP;
+ if (fixP->fx_next == NULL)
+ *seg_fix_tailP = fixP;
+ }
else
- *seg_fix_rootP = fixP;
- *seg_fix_tailP = fixP;
-
-#endif /* 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;
+ }
}
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
+fix_new (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. */
+ RELOC_ENUM r_type /* Relocation type. */)
{
return fix_new_internal (frag, where, size, add_symbol,
- (symbolS *) NULL, offset, pcrel, r_type);
+ (symbolS *) NULL, offset, pcrel, r_type, FALSE);
}
/* Create a fixup for an expression. Currently we only support fixups
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
+fix_new_exp (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. */
+ RELOC_ENUM r_type /* Relocation type. */)
{
symbolS *add = NULL;
symbolS *sub = NULL;
case O_absent:
break;
+ case O_register:
+ as_bad (_("register value used as expression"));
+ 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:
/* Fall through. */
case O_symbol:
add = exp->X_add_symbol;
- /* Fall through. */
+ /* Fall through. */
case O_constant:
off = exp->X_add_number;
break;
break;
}
- return fix_new_internal (frag, where, size, add, sub, off,
- pcrel, r_type);
+ return fix_new_internal (frag, where, size, add, sub, off, pcrel,
+ r_type, FALSE);
+}
+
+/* Create a fixup at the beginning of FRAG. The arguments are the same
+ as for fix_new, except that WHERE is implicitly 0. */
+
+fixS *
+fix_at_start (fragS *frag, int size, symbolS *add_symbol,
+ offsetT offset, int pcrel, RELOC_ENUM r_type)
+{
+ return fix_new_internal (frag, 0, size, add_symbol,
+ (symbolS *) NULL, offset, pcrel, r_type, TRUE);
+}
+
+/* Generic function to determine whether a fixup requires a relocation. */
+int
+generic_force_reloc (fixS *fix)
+{
+ if (fix->fx_r_type == BFD_RELOC_VTABLE_INHERIT
+ || fix->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
+ return 1;
+
+ if (fix->fx_addsy == NULL)
+ return 0;
+
+ return S_FORCE_RELOC (fix->fx_addsy, fix->fx_subsy == NULL);
}
/* Append a string onto another string, bumping the pointer along. */
void
-append (charPP, fromP, length)
- char **charPP;
- char *fromP;
- unsigned long length;
+append (char **charPP, char *fromP, unsigned long length)
{
- /* Don't trust memcpy() of 0 chars. */
+ /* Don't trust memcpy() of 0 chars. */
if (length == 0)
return;
*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. */
-/*
- * 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;
+record_alignment (/* 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))
+
+ if ((unsigned int) 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
+int
+get_recorded_alignment (segT seg)
+{
+ if (seg == absolute_section)
+ return 0;
+
+ return bfd_get_section_alignment (stdoutput, seg);
+}
/* Reset the section indices after removing the gas created sections. */
static void
-renumber_sections (abfd, sec, countparg)
- bfd *abfd;
- asection *sec;
- PTR countparg;
+renumber_sections (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *countparg)
{
int *countp = (int *) countparg;
++*countp;
}
-#endif /* defined (BFD_ASSEMBLER) */
-
-#if defined (BFD_ASSEMBLER) || ! defined (BFD)
-
static fragS *
-chain_frchains_together_1 (section, frchp)
- segT section;
- struct frchain *frchp;
+chain_frchains_together_1 (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)
+ for (; frchp; 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
+ gas_assert (prev_frag->fr_type != 0);
if (frchp->fix_root != (fixS *) NULL)
{
if (seg_info (section)->fix_root == (fixS *) NULL)
seg_info (section)->fix_tail = frchp->fix_tail;
prev_fix = frchp->fix_tail;
}
-#endif
}
- assert (prev_frag->fr_type != 0);
+ gas_assert (prev_frag != &dummy
+ && 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 */
+chain_frchains_together (bfd *abfd ATTRIBUTE_UNUSED,
+ segT section,
+ void *xxx ATTRIBUTE_UNUSED)
{
segment_info_type *info;
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);
+ 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
+cvt_frag_to_fill (segT sec ATTRIBUTE_UNUSED, fragS *fragP)
{
switch (fragP->fr_type)
{
case rs_align:
case rs_align_code:
+ case rs_align_test:
case rs_org:
case rs_space:
#ifdef HANDLE_ALIGN
- fragP->fr_fix) / fragP->fr_var;
if (fragP->fr_offset < 0)
{
- as_bad ("attempt to .org/.space backwards? (%ld)",
- (long) fragP->fr_offset);
+ as_bad_where (fragP->fr_file, fragP->fr_line,
+ _("attempt to .org/.space backwards? (%ld)"),
+ (long) fragP->fr_offset);
+ fragP->fr_offset = 0;
}
fragP->fr_type = rs_fill;
break;
case rs_fill:
break;
+ case rs_leb128:
+ {
+ valueT value = S_GET_VALUE (fragP->fr_symbol);
+ int size;
+
+ size = output_leb128 (fragP->fr_literal + fragP->fr_fix, value,
+ fragP->fr_subtype);
+
+ fragP->fr_fix += size;
+ fragP->fr_type = rs_fill;
+ fragP->fr_var = 0;
+ fragP->fr_offset = 0;
+ fragP->fr_symbol = NULL;
+ }
+ break;
+
+ case rs_cfa:
+ eh_frame_convert_frag (fragP);
+ break;
+
+ case rs_dwarf2dbg:
+ dwarf2dbg_convert_frag (fragP);
+ 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));
+ gas_assert (fragP->fr_next == NULL
+ || ((offsetT) (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.
- */
+ /* 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;
BAD_CASE (fragP->fr_type);
break;
}
+#ifdef md_frag_check
+ md_frag_check (fragP);
+#endif
}
-#endif /* defined (BFD_ASSEMBLER) || !defined (BFD) */
+struct relax_seg_info
+{
+ int pass;
+ int changed;
+};
+
+static void
+relax_seg (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *xxx)
+{
+ segment_info_type *seginfo = seg_info (sec);
+ struct relax_seg_info *info = (struct relax_seg_info *) xxx;
+
+ if (seginfo && seginfo->frchainP
+ && relax_segment (seginfo->frchainP->frch_root, sec, info->pass))
+ info->changed = 1;
+}
-#ifdef BFD_ASSEMBLER
static void
-relax_and_size_seg (abfd, sec, xxx)
- bfd *abfd;
- asection *sec;
- PTR xxx;
+size_seg (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED)
{
flagword flags;
fragS *fragp;
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 */;
+ /* Walk to last elt. */
+ ;
size = fragp->fr_address + fragp->fr_fix;
}
else
size = 0;
+ flags = bfd_get_section_flags (abfd, sec);
+ if (size == 0 && bfd_get_section_size (sec) != 0 &&
+ (flags & SEC_HAS_CONTENTS) != 0)
+ return;
+
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;
+ flags &= ~SEC_RELOC;
x = bfd_set_section_flags (abfd, sec, flags);
- assert (x == true);
+ gas_assert (x);
newsize = md_section_align (sec, size);
x = bfd_set_section_size (abfd, sec, newsize);
- assert (x == true);
+ gas_assert (x);
/* If the size had to be rounded up, add some padding in the last
non-empty frag. */
- assert (newsize >= size);
+ gas_assert (newsize >= size);
if (size != newsize)
{
fragS *last = seginfo->frchainP->frch_last;
while (fragp->fr_next != last)
fragp = fragp->fr_next;
last->fr_address = size;
- fragp->fr_offset += newsize - size;
+ if ((newsize - size) % fragp->fr_var == 0)
+ fragp->fr_offset += (newsize - size) / fragp->fr_var;
+ else
+ /* If we hit this abort, it's likely due to subsegs_finish not
+ providing sufficient alignment on the last frag, and the
+ machine dependent code using alignment frags with fr_var
+ greater than 1. */
+ abort ();
}
#ifdef tc_frob_section
#ifdef DEBUG2
static void
-dump_section_relocs (abfd, sec, stream_)
- bfd *abfd;
- asection *sec;
- char *stream_;
+dump_section_relocs (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, FILE *stream)
{
- FILE *stream = (FILE *) stream_;
segment_info_type *seginfo = seg_info (sec);
fixS *fixp = seginfo->fix_root;
while (fixp)
{
symbolS *s = fixp->fx_addsy;
- if (s)
+
+ fprintf (stream, " %08lx: type %d ", (unsigned long) fixp,
+ (int) fixp->fx_r_type);
+ if (s == NULL)
+ fprintf (stream, "no sym\n");
+ else
{
- 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);
+ print_symbol_value_1 (stream, s);
+ fprintf (stream, "\n");
}
- else
- fprintf (stream, " %08x: type %d no sym\n", fixp, fixp->fx_r_type);
fixp = fixp->fx_next;
}
}
#define EMIT_SECTION_SYMBOLS 1
#endif
+/* Resolve U.A.OFFSET_SYM and U.A.SYM fields of RELOC_LIST entries,
+ and check for validity. Convert RELOC_LIST from using U.A fields
+ to U.B fields. */
+static void
+resolve_reloc_expr_symbols (void)
+{
+ bfd_vma addr_mask = 1;
+ struct reloc_list *r;
+
+ /* Avoid a shift by the width of type. */
+ addr_mask <<= bfd_arch_bits_per_address (stdoutput) - 1;
+ addr_mask <<= 1;
+ addr_mask -= 1;
+
+ for (r = reloc_list; r; r = r->next)
+ {
+ reloc_howto_type *howto = r->u.a.howto;
+ expressionS *symval;
+ symbolS *sym;
+ bfd_vma offset, addend;
+ asection *sec;
+
+ resolve_symbol_value (r->u.a.offset_sym);
+ symval = symbol_get_value_expression (r->u.a.offset_sym);
+
+ offset = 0;
+ sym = NULL;
+ if (symval->X_op == O_constant)
+ sym = r->u.a.offset_sym;
+ else if (symval->X_op == O_symbol)
+ {
+ sym = symval->X_add_symbol;
+ offset = symval->X_add_number;
+ symval = symbol_get_value_expression (symval->X_add_symbol);
+ }
+ if (sym == NULL
+ || symval->X_op != O_constant
+ || (sec = S_GET_SEGMENT (sym)) == NULL
+ || !SEG_NORMAL (sec))
+ {
+ as_bad_where (r->file, r->line, _("invalid offset expression"));
+ sec = NULL;
+ }
+ else
+ offset += S_GET_VALUE (sym);
+
+ sym = NULL;
+ addend = r->u.a.addend;
+ if (r->u.a.sym != NULL)
+ {
+ resolve_symbol_value (r->u.a.sym);
+ symval = symbol_get_value_expression (r->u.a.sym);
+ if (symval->X_op == O_constant)
+ sym = r->u.a.sym;
+ else if (symval->X_op == O_symbol)
+ {
+ sym = symval->X_add_symbol;
+ addend += symval->X_add_number;
+ symval = symbol_get_value_expression (symval->X_add_symbol);
+ }
+ if (symval->X_op != O_constant)
+ {
+ as_bad_where (r->file, r->line, _("invalid reloc expression"));
+ sec = NULL;
+ }
+ else if (sym != NULL)
+ {
+ /* Convert relocs against local symbols to refer to the
+ corresponding section symbol plus offset instead. Keep
+ PC-relative relocs of the REL variety intact though to
+ prevent the offset from overflowing the relocated field,
+ unless it has enough bits to cover the whole address
+ space. */
+ if (S_IS_LOCAL (sym) && !symbol_section_p (sym)
+ && (sec->use_rela_p
+ || (howto->partial_inplace
+ && (!howto->pc_relative
+ || howto->src_mask == addr_mask))))
+ {
+ asection *symsec = S_GET_SEGMENT (sym);
+ if (!(((symsec->flags & SEC_MERGE) != 0
+ && addend != 0)
+ || (symsec->flags & SEC_THREAD_LOCAL) != 0))
+ {
+ addend += S_GET_VALUE (sym);
+ sym = section_symbol (symsec);
+ }
+ }
+ symbol_mark_used_in_reloc (sym);
+ }
+ }
+ if (sym == NULL)
+ {
+ if (abs_section_sym == NULL)
+ abs_section_sym = section_symbol (absolute_section);
+ sym = abs_section_sym;
+ }
+
+ r->u.b.sec = sec;
+ r->u.b.s = symbol_get_bfdsym (sym);
+ r->u.b.r.sym_ptr_ptr = &r->u.b.s;
+ r->u.b.r.address = offset;
+ r->u.b.r.addend = addend;
+ r->u.b.r.howto = howto;
+ }
+}
+
+/* This pass over fixups decides whether symbols can be replaced with
+ section symbols. */
+
static void
-adjust_reloc_syms (abfd, sec, xxx)
- bfd *abfd;
- asection *sec;
- PTR xxx;
+adjust_reloc_syms (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec,
+ void *xxx ATTRIBUTE_UNUSED)
{
segment_info_type *seginfo = seg_info (sec);
fixS *fixp;
for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next)
if (fixp->fx_done)
- /* ignore it */;
+ /* Ignore it. */
+ ;
else if (fixp->fx_addsy)
{
symbolS *sym;
asection *symsec;
- reduce_fixup:
-
#ifdef DEBUG5
fprintf (stderr, "\n\nadjusting fixup:\n");
print_fixup (fixp);
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);
+ resolve_symbol_value (sym);
- /* 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 (fixp->fx_subsy != NULL)
+ resolve_symbol_value (fixp->fx_subsy);
- if (bfd_is_abs_section (symsec))
+ /* If this symbol is equated to an undefined or common symbol,
+ convert the fixup to being against that symbol. */
+ while (symbol_equated_reloc_p (sym)
+ || S_IS_WEAKREFR (sym))
{
- /* 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;
+ symbolS *newsym = symbol_get_value_expression (sym)->X_add_symbol;
+ if (sym == newsym)
+ break;
+ fixp->fx_offset += symbol_get_value_expression (sym)->X_add_number;
+ fixp->fx_addsy = newsym;
+ sym = newsym;
}
- /* 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))
+ if (symbol_mri_common_p (sym))
{
- 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;
+ fixp->fx_offset += S_GET_VALUE (sym);
+ fixp->fx_addsy = symbol_get_value_expression (sym)->X_add_symbol;
+ continue;
}
- /* 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 the symbol is undefined, common, weak, or global (ELF
+ shared libs), we can't replace it with the section symbol. */
+ if (S_FORCE_RELOC (fixp->fx_addsy, 1))
+ continue;
- 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;
+ /* 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))
+ continue;
#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;
- }
+ if (symbol_section_p (sym))
+ continue;
+
+ symsec = S_GET_SEGMENT (sym);
+ if (symsec == NULL)
+ abort ();
- /* 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))
+ if (bfd_is_abs_section (symsec)
+ || symsec == reg_section)
{
- fixp->fx_addsy->sy_used_in_reloc = 1;
- goto done;
+ /* The fixup_segment routine normally will not use this
+ symbol in a relocation. */
+ continue;
}
-#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))
+ /* Don't try to reduce relocs which refer to non-local symbols
+ in .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 && ! S_IS_LOCAL (sym))
{
- fixp->fx_addsy->sy_used_in_reloc = 1;
- goto done;
+ if ((symsec->flags & SEC_LINK_ONCE) != 0
+ || (IS_ELF
+ /* The GNU toolchain uses an extension for ELF: a
+ section beginning with the magic string
+ .gnu.linkonce is a linkonce section. */
+ && strncmp (segment_name (symsec), ".gnu.linkonce",
+ sizeof ".gnu.linkonce" - 1) == 0))
+ continue;
}
-#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.
+ /* Never adjust a reloc against local symbol in a merge section
+ with non-zero addend. */
+ if ((symsec->flags & SEC_MERGE) != 0
+ && (fixp->fx_offset != 0 || fixp->fx_subsy != NULL))
+ continue;
+
+ /* Never adjust a reloc against TLS local symbol. */
+ if ((symsec->flags & SEC_THREAD_LOCAL) != 0)
+ continue;
- We refetch the segment when calling section_symbol, rather
+ /* 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. */
+ 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; */
- }
+#ifdef DEBUG5
+ fprintf (stderr, "\nadjusted fixup:\n");
+ print_fixup (fixp);
#endif
+ }
dump_section_relocs (abfd, sec, stderr);
}
+/* fixup_segment()
+
+ Go through all the fixS's in a segment and see which ones can be
+ handled now. (These consist of fixS where we have since discovered
+ the value of a symbol, or the address of the frag involved.)
+ For each one, call md_apply_fix to put the fix into the frag data.
+ Ones that we couldn't completely handle here will be output later
+ by emit_relocations. */
+
static void
-write_relocs (abfd, sec, xxx)
- bfd *abfd;
- asection *sec;
- PTR xxx;
+fixup_segment (fixS *fixP, segT this_segment)
{
- segment_info_type *seginfo = seg_info (sec);
- int i;
- unsigned int n;
- arelent **relocs;
- fixS *fixp;
- char *err;
+ valueT add_number;
+ fragS *fragP;
+ segT add_symbol_segment = absolute_section;
- /* If seginfo is NULL, we did not create this section; don't do
- anything with it. */
- if (seginfo == NULL)
- return;
+ if (fixP != NULL && abs_section_sym == NULL)
+ abs_section_sym = section_symbol (absolute_section);
- fixup_segment (seginfo->fix_root, sec);
+ /* If the linker is doing the relaxing, we must not do any fixups.
- 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*));
+ Well, strictly speaking that's not true -- we could do any that
+ are PC-relative and don't cross regions that could change size.
+ And for the i960 we might be able to turn callx/callj into bal
+ anyways in cases where we know the maximum displacement. */
+ if (linkrelax && TC_LINKRELAX_FIXUP (this_segment))
+ {
+ for (; fixP; fixP = fixP->fx_next)
+ if (!fixP->fx_done)
+ {
+ if (fixP->fx_addsy == NULL)
+ {
+ /* There was no symbol required by this relocation.
+ However, BFD doesn't really handle relocations
+ without symbols well. So fake up a local symbol in
+ the absolute section. */
+ fixP->fx_addsy = abs_section_sym;
+ }
+ symbol_mark_used_in_reloc (fixP->fx_addsy);
+ if (fixP->fx_subsy != NULL)
+ symbol_mark_used_in_reloc (fixP->fx_subsy);
+ }
+ return;
+ }
- i = 0;
- for (fixp = seginfo->fix_root; fixp != (fixS *) NULL; fixp = fixp->fx_next)
+ for (; fixP; fixP = fixP->fx_next)
{
- arelent *reloc;
- bfd_reloc_status_type s;
- symbolS *sym;
+#ifdef DEBUG5
+ fprintf (stderr, "\nprocessing fixup:\n");
+ print_fixup (fixP);
+#endif
- if (fixp->fx_done)
+ fragP = fixP->fx_frag;
+ know (fragP);
+#ifdef TC_VALIDATE_FIX
+ TC_VALIDATE_FIX (fixP, this_segment, skip);
+#endif
+ add_number = fixP->fx_offset;
+
+ if (fixP->fx_addsy != NULL)
+ add_symbol_segment = S_GET_SEGMENT (fixP->fx_addsy);
+
+ if (fixP->fx_subsy != NULL)
{
- n--;
- continue;
+ segT sub_symbol_segment;
+ resolve_symbol_value (fixP->fx_subsy);
+ sub_symbol_segment = S_GET_SEGMENT (fixP->fx_subsy);
+ if (fixP->fx_addsy != NULL
+ && sub_symbol_segment == add_symbol_segment
+ && !S_FORCE_RELOC (fixP->fx_addsy, 0)
+ && !S_FORCE_RELOC (fixP->fx_subsy, 0)
+ && !TC_FORCE_RELOCATION_SUB_SAME (fixP, add_symbol_segment))
+ {
+ add_number += S_GET_VALUE (fixP->fx_addsy);
+ add_number -= S_GET_VALUE (fixP->fx_subsy);
+ fixP->fx_offset = add_number;
+ fixP->fx_addsy = NULL;
+ fixP->fx_subsy = NULL;
+#ifdef TC_M68K
+ /* See the comment below about 68k weirdness. */
+ fixP->fx_pcrel = 0;
+#endif
+ }
+ else if (sub_symbol_segment == absolute_section
+ && !S_FORCE_RELOC (fixP->fx_subsy, 0)
+ && !TC_FORCE_RELOCATION_SUB_ABS (fixP, add_symbol_segment))
+ {
+ add_number -= S_GET_VALUE (fixP->fx_subsy);
+ fixP->fx_offset = add_number;
+ fixP->fx_subsy = NULL;
+ }
+ else if (sub_symbol_segment == this_segment
+ && !S_FORCE_RELOC (fixP->fx_subsy, 0)
+ && !TC_FORCE_RELOCATION_SUB_LOCAL (fixP, add_symbol_segment))
+ {
+ add_number -= S_GET_VALUE (fixP->fx_subsy);
+ fixP->fx_offset = (add_number + fixP->fx_dot_value
+ + fixP->fx_dot_frag->fr_address);
+
+ /* Make it pc-relative. If the back-end code has not
+ selected a pc-relative reloc, cancel the adjustment
+ we do later on all pc-relative relocs. */
+ if (0
+#ifdef TC_M68K
+ /* Do this for m68k even if it's already described
+ as pc-relative. On the m68k, an operand of
+ "pc@(foo-.-2)" should address "foo" in a
+ pc-relative mode. */
+ || 1
+#endif
+ || !fixP->fx_pcrel)
+ add_number += MD_PCREL_FROM_SECTION (fixP, this_segment);
+ fixP->fx_subsy = NULL;
+ fixP->fx_pcrel = 1;
+ }
+ else if (!TC_VALIDATE_FIX_SUB (fixP, add_symbol_segment))
+ {
+ if (!md_register_arithmetic
+ && (add_symbol_segment == reg_section
+ || sub_symbol_segment == reg_section))
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("register value used as expression"));
+ else
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("can't resolve `%s' {%s section} - `%s' {%s section}"),
+ fixP->fx_addsy ? S_GET_NAME (fixP->fx_addsy) : "0",
+ segment_name (add_symbol_segment),
+ S_GET_NAME (fixP->fx_subsy),
+ segment_name (sub_symbol_segment));
+ }
+ else if (sub_symbol_segment != undefined_section
+ && ! bfd_is_com_section (sub_symbol_segment)
+ && MD_APPLY_SYM_VALUE (fixP))
+ add_number -= S_GET_VALUE (fixP->fx_subsy);
+ }
+
+ if (fixP->fx_addsy)
+ {
+ if (add_symbol_segment == this_segment
+ && !S_FORCE_RELOC (fixP->fx_addsy, 0)
+ && !TC_FORCE_RELOCATION_LOCAL (fixP))
+ {
+ /* This fixup was made when the symbol's segment was
+ SEG_UNKNOWN, but it is now in the local segment.
+ So we know how to do the address without relocation. */
+ add_number += S_GET_VALUE (fixP->fx_addsy);
+ fixP->fx_offset = add_number;
+ if (fixP->fx_pcrel)
+ add_number -= MD_PCREL_FROM_SECTION (fixP, this_segment);
+ fixP->fx_addsy = NULL;
+ fixP->fx_pcrel = 0;
+ }
+ else if (add_symbol_segment == absolute_section
+ && !S_FORCE_RELOC (fixP->fx_addsy, 0)
+ && !TC_FORCE_RELOCATION_ABS (fixP))
+ {
+ add_number += S_GET_VALUE (fixP->fx_addsy);
+ fixP->fx_offset = add_number;
+ fixP->fx_addsy = NULL;
+ }
+ else if (add_symbol_segment != undefined_section
+ && ! bfd_is_com_section (add_symbol_segment)
+ && MD_APPLY_SYM_VALUE (fixP))
+ add_number += S_GET_VALUE (fixP->fx_addsy);
}
- /* 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;
+ if (fixP->fx_pcrel)
+ {
+ add_number -= MD_PCREL_FROM_SECTION (fixP, this_segment);
+ if (!fixP->fx_done && fixP->fx_addsy == NULL)
+ {
+ /* There was no symbol required by this relocation.
+ However, BFD doesn't really handle relocations
+ without symbols well. So fake up a local symbol in
+ the absolute section. */
+ fixP->fx_addsy = abs_section_sym;
+ }
+ }
- reloc = tc_gen_reloc (sec, fixp);
- if (!reloc)
+ if (!fixP->fx_done)
+ md_apply_fix (fixP, &add_number, this_segment);
+
+ if (!fixP->fx_done)
{
- n--;
- continue;
+ if (fixP->fx_addsy == NULL)
+ fixP->fx_addsy = abs_section_sym;
+ symbol_mark_used_in_reloc (fixP->fx_addsy);
+ if (fixP->fx_subsy != NULL)
+ symbol_mark_used_in_reloc (fixP->fx_subsy);
}
-#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 ();
+ if (!fixP->fx_bit_fixP && !fixP->fx_no_overflow && fixP->fx_size != 0)
+ {
+ if (fixP->fx_size < sizeof (valueT))
+ {
+ valueT mask;
+
+ mask = 0;
+ mask--; /* Set all bits to one. */
+ mask <<= fixP->fx_size * 8 - (fixP->fx_signed ? 1 : 0);
+ if ((add_number & mask) != 0 && (add_number & mask) != mask)
+ {
+ char buf[50], buf2[50];
+ sprint_value (buf, fragP->fr_address + fixP->fx_where);
+ if (add_number > 1000)
+ sprint_value (buf2, add_number);
+ else
+ sprintf (buf2, "%ld", (long) add_number);
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("value of %s too large for field of %d bytes at %s"),
+ buf2, fixP->fx_size, buf);
+ } /* Generic error checking. */
+ }
+#ifdef WARN_SIGNED_OVERFLOW_WORD
+ /* Warn if a .word value is too large when treated as a signed
+ number. We already know it is not too negative. This is to
+ catch over-large switches generated by gcc on the 68k. */
+ if (!flag_signed_overflow_ok
+ && fixP->fx_size == 2
+ && add_number > 0x7fff)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("signed .word overflow; switch may be too large; %ld at 0x%lx"),
+ (long) add_number,
+ (long) (fragP->fr_address + fixP->fx_where));
+#endif
+ } /* Not a bit fix. */
+
+#ifdef TC_VALIDATE_FIX
+ skip: ATTRIBUTE_UNUSED_LABEL
+ ;
+#endif
+#ifdef DEBUG5
+ fprintf (stderr, "result:\n");
+ print_fixup (fixP);
#endif
+ } /* For each fixS in this segment. */
+}
- s = bfd_install_relocation (stdoutput, reloc,
- fixp->fx_frag->fr_literal,
- fixp->fx_frag->fr_address,
- sec, &err);
- switch (s)
+static void
+fix_segment (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec,
+ void *xxx ATTRIBUTE_UNUSED)
+{
+ segment_info_type *seginfo = seg_info (sec);
+
+ fixup_segment (seginfo->fix_root, sec);
+}
+
+static void
+install_reloc (asection *sec, arelent *reloc, fragS *fragp,
+ char *file, unsigned int line)
+{
+ char *err;
+ bfd_reloc_status_type s;
+ asymbol *sym;
+
+ if (reloc->sym_ptr_ptr != NULL
+ && (sym = *reloc->sym_ptr_ptr) != NULL
+ && (sym->flags & BSF_KEEP) == 0
+ && ((sym->flags & BSF_SECTION_SYM) == 0
+ || (EMIT_SECTION_SYMBOLS
+ && !bfd_is_abs_section (sym->section))))
+ as_bad_where (file, line, _("redefined symbol cannot be used on reloc"));
+
+ s = bfd_install_relocation (stdoutput, reloc,
+ fragp->fr_literal, fragp->fr_address,
+ sec, &err);
+ switch (s)
+ {
+ case bfd_reloc_ok:
+ break;
+ case bfd_reloc_overflow:
+ as_bad_where (file, line, _("relocation overflow"));
+ break;
+ case bfd_reloc_outofrange:
+ as_bad_where (file, line, _("relocation out of range"));
+ break;
+ default:
+ as_fatal (_("%s:%u: bad return from bfd_install_relocation: %x"),
+ file, line, s);
+ }
+}
+
+static fragS *
+get_frag_for_reloc (fragS *last_frag,
+ const segment_info_type *seginfo,
+ const struct reloc_list *r)
+{
+ fragS *f;
+
+ for (f = last_frag; f != NULL; f = f->fr_next)
+ if (f->fr_address <= r->u.b.r.address
+ && r->u.b.r.address < f->fr_address + f->fr_fix)
+ return f;
+
+ for (f = seginfo->frchainP->frch_root; f != NULL; f = f->fr_next)
+ if (f->fr_address <= r->u.b.r.address
+ && r->u.b.r.address < f->fr_address + f->fr_fix)
+ return f;
+
+ for (f = seginfo->frchainP->frch_root; f != NULL; f = f->fr_next)
+ if (f->fr_address <= r->u.b.r.address
+ && r->u.b.r.address <= f->fr_address + f->fr_fix)
+ return f;
+
+ as_bad_where (r->file, r->line,
+ _("reloc not within (fixed part of) section"));
+ return NULL;
+}
+
+static void
+write_relocs (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED)
+{
+ segment_info_type *seginfo = seg_info (sec);
+ unsigned int n;
+ struct reloc_list *my_reloc_list, **rp, *r;
+ arelent **relocs;
+ fixS *fixp;
+ fragS *last_frag;
+
+ /* If seginfo is NULL, we did not create this section; don't do
+ anything with it. */
+ if (seginfo == NULL)
+ return;
+
+ n = 0;
+ for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next)
+ if (!fixp->fx_done)
+ n++;
+
+#ifdef RELOC_EXPANSION_POSSIBLE
+ n *= MAX_RELOC_EXPANSION;
+#endif
+
+ /* Extract relocs for this section from reloc_list. */
+ rp = &reloc_list;
+ my_reloc_list = NULL;
+ while ((r = *rp) != NULL)
+ {
+ if (r->u.b.sec == sec)
{
- 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);
+ *rp = r->next;
+ r->next = my_reloc_list;
+ my_reloc_list = r;
+ n++;
}
- relocs[i++] = reloc;
+ else
+ rp = &r->next;
}
-#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;
+ relocs = (arelent **) xcalloc (n, sizeof (arelent *));
+
+ n = 0;
+ r = my_reloc_list;
+ last_frag = NULL;
for (fixp = seginfo->fix_root; fixp != (fixS *) NULL; fixp = fixp->fx_next)
{
+ int fx_size, slack;
+ offsetT loc;
arelent **reloc;
- char *data;
- bfd_reloc_status_type s;
- symbolS *sym;
- int j;
+#ifndef RELOC_EXPANSION_POSSIBLE
+ arelent *rel;
- if (fixp->fx_done)
- {
- n--;
- continue;
- }
+ reloc = &rel;
+#endif
- /* 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;
+ if (fixp->fx_done)
+ continue;
+
+ fx_size = fixp->fx_size;
+ slack = TC_FX_SIZE_SLACK (fixp);
+ if (slack > 0)
+ fx_size = fx_size > slack ? fx_size - slack : 0;
+ loc = fixp->fx_where + fx_size;
+ if (slack >= 0 && loc > fixp->fx_frag->fr_fix)
+ as_bad_where (fixp->fx_file, fixp->fx_line,
+ _("internal error: fixup not contained within frag"));
+#ifndef RELOC_EXPANSION_POSSIBLE
+ *reloc = tc_gen_reloc (sec, fixp);
+#else
reloc = tc_gen_reloc (sec, fixp);
+#endif
- for (j = 0; reloc[j]; j++)
+ while (*reloc)
{
- 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)
+ while (r != NULL && r->u.b.r.address < (*reloc)->address)
{
- 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);
+ fragS *f = get_frag_for_reloc (last_frag, seginfo, r);
+ if (f != NULL)
+ {
+ last_frag = f;
+ relocs[n++] = &r->u.b.r;
+ install_reloc (sec, &r->u.b.r, f, r->file, r->line);
+ }
+ r = r->next;
}
- }
- }
- n = i;
+ relocs[n++] = *reloc;
+ install_reloc (sec, *reloc, fixp->fx_frag,
+ fixp->fx_file, fixp->fx_line);
+#ifndef RELOC_EXPANSION_POSSIBLE
+ break;
+#else
+ reloc++;
#endif
+ }
+ }
+
+ while (r != NULL)
+ {
+ fragS *f = get_frag_for_reloc (last_frag, seginfo, r);
+ if (f != NULL)
+ {
+ last_frag = f;
+ relocs[n++] = &r->u.b.r;
+ install_reloc (sec, &r->u.b.r, f, r->file, r->line);
+ }
+ r = r->next;
+ }
#ifdef DEBUG4
{
- int i, j, nsyms;
+ unsigned int k, 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 (k = 0; k < n; k++)
+ if (((*relocs[k]->sym_ptr_ptr)->flags & BSF_SECTION_SYM) == 0)
{
for (j = 0; j < nsyms; j++)
- if (sympp[j] == *relocs[i]->sym_ptr_ptr)
+ if (sympp[j] == *relocs[k]->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));
+ {
+ flagword flags = bfd_get_section_flags (abfd, sec);
+ flags |= SEC_RELOC;
+ bfd_set_section_flags (abfd, sec, flags);
+ bfd_set_reloc (stdoutput, sec, relocs, n);
+ }
+
+#ifdef SET_SECTION_RELOCS
+ SET_SECTION_RELOCS (sec, relocs, n);
+#endif
#ifdef DEBUG3
{
- int i;
- arelent *r;
- asymbol *s;
+ unsigned int k;
+
fprintf (stderr, "relocs for sec %s\n", sec->name);
- for (i = 0; i < n; i++)
+ for (k = 0; k < n; k++)
{
- 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);
+ arelent *rel = relocs[k];
+ asymbol *s = *rel->sym_ptr_ptr;
+ fprintf (stderr, " reloc %2d @%p off %4lx : sym %-10s addend %lx\n",
+ k, rel, (unsigned long)rel->address, s->name,
+ (unsigned long)rel->addend);
}
}
#endif
}
+static int
+compress_frag (struct z_stream_s *strm, const char *contents, int in_size,
+ fragS **last_newf, struct obstack *ob)
+{
+ int out_size;
+ int total_out_size = 0;
+ fragS *f = *last_newf;
+ char *next_out;
+ int avail_out;
+
+ /* Call the compression routine repeatedly until it has finished
+ processing the frag. */
+ while (in_size > 0)
+ {
+ /* Reserve all the space available in the current chunk.
+ If none is available, start a new frag. */
+ avail_out = obstack_room (ob);
+ if (avail_out <= 0)
+ {
+ obstack_finish (ob);
+ f = frag_alloc (ob);
+ f->fr_type = rs_fill;
+ (*last_newf)->fr_next = f;
+ *last_newf = f;
+ avail_out = obstack_room (ob);
+ }
+ if (avail_out <= 0)
+ as_fatal (_("can't extend frag"));
+ next_out = obstack_next_free (ob);
+ obstack_blank_fast (ob, avail_out);
+ out_size = compress_data (strm, &contents, &in_size,
+ &next_out, &avail_out);
+ if (out_size < 0)
+ return -1;
+
+ f->fr_fix += out_size;
+ total_out_size += out_size;
+
+ /* Return unused space. */
+ if (avail_out > 0)
+ obstack_blank_fast (ob, -avail_out);
+ }
+
+ return total_out_size;
+}
+
static void
-write_contents (abfd, sec, xxx)
- bfd *abfd;
- asection *sec;
- PTR xxx;
+compress_debug (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED)
{
segment_info_type *seginfo = seg_info (sec);
- unsigned long offset = 0;
+ fragS *f;
+ fragS *first_newf;
+ fragS *last_newf;
+ struct obstack *ob = &seginfo->frchainP->frch_obstack;
+ bfd_size_type uncompressed_size = (bfd_size_type) sec->size;
+ bfd_size_type compressed_size;
+ const char *section_name;
+ char *compressed_name;
+ char *header;
+ struct z_stream_s *strm;
+ int x;
+ flagword flags = bfd_get_section_flags (abfd, sec);
+ unsigned int header_size, compression_header_size;
+
+ if (seginfo == NULL
+ || sec->size < 32
+ || (flags & (SEC_ALLOC | SEC_HAS_CONTENTS)) == SEC_ALLOC)
+ return;
+
+ section_name = bfd_get_section_name (stdoutput, sec);
+ if (strncmp (section_name, ".debug_", 7) != 0)
+ return;
+
+ strm = compress_init ();
+ if (strm == NULL)
+ return;
+
+ if (flag_compress_debug == COMPRESS_DEBUG_GABI_ZLIB)
+ {
+ stdoutput->flags |= BFD_COMPRESS | BFD_COMPRESS_GABI;
+ compression_header_size
+ = bfd_get_compression_header_size (stdoutput, NULL);
+ header_size = compression_header_size;
+ }
+ else
+ {
+ stdoutput->flags |= BFD_COMPRESS;
+ compression_header_size = 0;
+ header_size = 12;
+ }
+
+ /* Create a new frag to contain the compression header. */
+ first_newf = frag_alloc (ob);
+ if (obstack_room (ob) < header_size)
+ first_newf = frag_alloc (ob);
+ if (obstack_room (ob) < header_size)
+ as_fatal (_("can't extend frag %u chars"), header_size);
+ last_newf = first_newf;
+ obstack_blank_fast (ob, header_size);
+ last_newf->fr_type = rs_fill;
+ last_newf->fr_fix = header_size;
+ header = last_newf->fr_literal;
+ compressed_size = header_size;
+
+ /* Stream the frags through the compression engine, adding new frags
+ as necessary to accomodate the compressed output. */
+ for (f = seginfo->frchainP->frch_root;
+ f;
+ f = f->fr_next)
+ {
+ offsetT fill_size;
+ char *fill_literal;
+ offsetT count;
+ int out_size;
+
+ gas_assert (f->fr_type == rs_fill);
+ if (f->fr_fix)
+ {
+ out_size = compress_frag (strm, f->fr_literal, f->fr_fix,
+ &last_newf, ob);
+ if (out_size < 0)
+ return;
+ compressed_size += out_size;
+ }
+ fill_literal = f->fr_literal + f->fr_fix;
+ fill_size = f->fr_var;
+ count = f->fr_offset;
+ gas_assert (count >= 0);
+ if (fill_size && count)
+ {
+ while (count--)
+ {
+ out_size = compress_frag (strm, fill_literal, (int) fill_size,
+ &last_newf, ob);
+ if (out_size < 0)
+ return;
+ compressed_size += out_size;
+ }
+ }
+ }
+
+ /* Flush the compression state. */
+ for (;;)
+ {
+ int avail_out;
+ char *next_out;
+ int out_size;
+
+ /* Reserve all the space available in the current chunk.
+ If none is available, start a new frag. */
+ avail_out = obstack_room (ob);
+ if (avail_out <= 0)
+ {
+ fragS *newf;
+
+ obstack_finish (ob);
+ newf = frag_alloc (ob);
+ newf->fr_type = rs_fill;
+ last_newf->fr_next = newf;
+ last_newf = newf;
+ avail_out = obstack_room (ob);
+ }
+ if (avail_out <= 0)
+ as_fatal (_("can't extend frag"));
+ next_out = obstack_next_free (ob);
+ obstack_blank_fast (ob, avail_out);
+ x = compress_finish (strm, &next_out, &avail_out, &out_size);
+ if (x < 0)
+ return;
+
+ last_newf->fr_fix += out_size;
+ compressed_size += out_size;
+
+ /* Return unused space. */
+ if (avail_out > 0)
+ obstack_blank_fast (ob, -avail_out);
+
+ if (x == 0)
+ break;
+ }
+
+ /* PR binutils/18087: If compression didn't make the section smaller,
+ just keep it uncompressed. */
+ if (compressed_size >= uncompressed_size)
+ return;
+
+ /* Replace the uncompressed frag list with the compressed frag list. */
+ seginfo->frchainP->frch_root = first_newf;
+ seginfo->frchainP->frch_last = last_newf;
+
+ /* Update the section size and its name. */
+ bfd_update_compression_header (abfd, (bfd_byte *) header, sec);
+ x = bfd_set_section_size (abfd, sec, compressed_size);
+ gas_assert (x);
+ if (!compression_header_size)
+ {
+ compressed_name = (char *) xmalloc (strlen (section_name) + 2);
+ compressed_name[0] = '.';
+ compressed_name[1] = 'z';
+ strcpy (compressed_name + 2, section_name + 1);
+ bfd_section_name (stdoutput, sec) = compressed_name;
+ }
+}
+
+static void
+write_contents (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec,
+ void *xxx ATTRIBUTE_UNUSED)
+{
+ segment_info_type *seginfo = seg_info (sec);
+ addressT offset = 0;
fragS *f;
/* Write out the frags. */
if (seginfo == NULL
- || ! (bfd_get_section_flags (abfd, sec) & SEC_HAS_CONTENTS))
+ || !(bfd_get_section_flags (abfd, sec) & SEC_HAS_CONTENTS))
return;
for (f = seginfo->frchainP->frch_root;
f = f->fr_next)
{
int x;
- unsigned long fill_size;
+ addressT fill_size;
char *fill_literal;
- long count;
+ offsetT count;
- assert (f->fr_type == rs_fill);
+ gas_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);
- }
+ if (!x)
+ as_fatal (_("can't write %s: %s"), stdoutput->filename,
+ bfd_errmsg (bfd_get_error ()));
offset += f->fr_fix;
}
fill_literal = f->fr_literal + f->fr_fix;
fill_size = f->fr_var;
count = f->fr_offset;
- assert (count >= 0);
+ gas_assert (count >= 0);
if (fill_size && count)
{
char buf[256];
- if (fill_size > sizeof(buf))
+ if (fill_size > sizeof (buf))
{
- /* Do it the old way. Can this ever happen? */
+ /* 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);
- }
+ if (!x)
+ as_fatal (_("can't write %s: %s"), stdoutput->filename,
+ bfd_errmsg (bfd_get_error ()));
offset += fill_size;
}
}
else
{
char *bufp;
- n_per_buf = sizeof(buf)/fill_size;
+ 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);
+ 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.");
+ x = bfd_set_section_contents
+ (stdoutput, sec, buf, (file_ptr) offset,
+ (bfd_size_type) n_per_buf * fill_size);
+ if (!x)
+ as_fatal (_("cannot write to output file '%s': %s"),
+ stdoutput->filename,
+ bfd_errmsg (bfd_get_error ()));
offset += n_per_buf * fill_size;
}
}
}
}
}
-#endif
-#if defined(BFD_ASSEMBLER) || (!defined (BFD) && !defined(OBJ_AOUT))
static void
-merge_data_into_text ()
+merge_data_into_text (void)
{
-#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 ()
+set_symtab (void)
{
int nsyms;
asymbol **asympp;
symbolS *symp;
- boolean result;
- extern PTR bfd_alloc PARAMS ((bfd *, size_t));
+ bfd_boolean result;
/* 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
if (nsyms)
{
int i;
+ bfd_size_type amt = (bfd_size_type) nsyms * sizeof (asymbol *);
- asympp = (asymbol **) bfd_alloc (stdoutput,
- nsyms * sizeof (asymbol *));
+ asympp = (asymbol **) bfd_alloc (stdoutput, amt);
symp = symbol_rootP;
for (i = 0; i < nsyms; i++, symp = symbol_next (symp))
{
- asympp[i] = symp->bsym;
- symp->written = 1;
+ asympp[i] = symbol_get_bfdsym (symp);
+ if (asympp[i]->flags != BSF_SECTION_SYM
+ || !(bfd_is_const_section (asympp[i]->section)
+ && asympp[i]->section->symbol == asympp[i]))
+ asympp[i]->flags |= BSF_KEEP;
+ symbol_mark_written (symp);
}
}
else
asympp = 0;
result = bfd_set_symtab (stdoutput, asympp, nsyms);
- assert (result == true);
+ gas_assert (result);
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 */
+/* Finish the subsegments. 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. */
- /* 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)
+#ifdef HANDLE_ALIGN
+/* The last subsegment gets an alignment corresponding to the alignment
+ of the section. This allows proper nop-filling at the end of
+ code-bearing sections. */
+#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) \
+ (!(FRCHAIN)->frch_next && subseg_text_p (SEG) \
+ ? get_recorded_alignment (SEG) \
+ : 0)
#else
-#define SUB_SEGMENT_ALIGN(SEG) (2)
+#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0
#endif
#endif
- for (frchainP = frchain_root; frchainP; frchainP = frchainP->frch_next)
+
+static void
+subsegs_finish_section (asection *s)
+{
+ struct frchain *frchainP;
+ segment_info_type *seginfo = seg_info (s);
+ if (!seginfo)
+ return;
+
+ for (frchainP = seginfo->frchainP;
+ frchainP != NULL;
+ frchainP = frchainP->frch_next)
{
- subseg_set (frchainP->frch_seg, frchainP->frch_subseg);
- frag_align (SUB_SEGMENT_ALIGN (now_seg), NOP_OPCODE);
+ int alignment = 0;
+
+ subseg_set (s, frchainP->frch_subseg);
+
+ /* This now gets called even if we had errors. In that case,
+ any alignment is meaningless, and, moreover, will look weird
+ if we are generating a listing. */
+ if (!had_errors ())
+ {
+ alignment = SUB_SEGMENT_ALIGN (now_seg, frchainP);
+ if ((bfd_get_section_flags (now_seg->owner, now_seg) & SEC_MERGE)
+ && now_seg->entsize)
+ {
+ unsigned int entsize = now_seg->entsize;
+ int entalign = 0;
+
+ while ((entsize & 1) == 0)
+ {
+ ++entalign;
+ entsize >>= 1;
+ }
+
+ if (entalign > alignment)
+ alignment = entalign;
+ }
+ }
+
+ if (subseg_text_p (now_seg))
+ frag_align_code (alignment, 0);
+ else
+ frag_align (alignment, 0, 0);
+
/* frag_align will have left a new frag.
Use this last frag for an empty ".fill".
frag_now->fr_fix = 0;
know (frag_now->fr_next == NULL);
}
+}
+
+static void
+subsegs_finish (void)
+{
+ asection *s;
+
+ for (s = stdoutput->sections; s; s = s->next)
+ subsegs_finish_section (s);
+}
+
+#ifdef OBJ_ELF
+static void
+create_obj_attrs_section (void)
+{
+ segT s;
+ char *p;
+ offsetT size;
+ const char *name;
+
+ size = bfd_elf_obj_attr_size (stdoutput);
+ if (size)
+ {
+ name = get_elf_backend_data (stdoutput)->obj_attrs_section;
+ if (!name)
+ name = ".gnu.attributes";
+ s = subseg_new (name, 0);
+ elf_section_type (s)
+ = get_elf_backend_data (stdoutput)->obj_attrs_section_type;
+ bfd_set_section_flags (stdoutput, s, SEC_READONLY | SEC_DATA);
+ frag_now_fix ();
+ p = frag_more (size);
+ bfd_elf_set_obj_attr_contents (stdoutput, (bfd_byte *)p, size);
+
+ subsegs_finish_section (s);
+ relax_segment (seg_info (s)->frchainP->frch_root, s, 0);
+ size_seg (stdoutput, s, NULL);
+ }
+}
+#endif
+
+/* Write the object file. */
+
+void
+write_object_file (void)
+{
+ struct relax_seg_info rsi;
+#ifndef WORKING_DOT_WORD
+ fragS *fragP; /* Track along all frags. */
+#endif
+
+ subsegs_finish ();
+
+#ifdef md_pre_output_hook
+ md_pre_output_hook;
+#endif
+
+#ifdef md_pre_relax_hook
+ md_pre_relax_hook;
+#endif
/* 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;
- }
+ bfd_section_list_remove (stdoutput, reg_section);
+ bfd_section_list_remove (stdoutput, expr_section);
+ stdoutput->section_count -= 2;
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)
+ rsi.pass = 0;
+ while (1)
{
- cvt_frag_to_fill (&headers, SEG_TEXT, fragP);
+#ifndef WORKING_DOT_WORD
+ /* We need to reset the markers in the broken word list and
+ associated frags between calls to relax_segment (via
+ relax_seg). Since the broken word list is global, we do it
+ once per round, rather than locally in relax_segment for each
+ segment. */
+ struct broken_word *brokp;
+
+ for (brokp = broken_words;
+ brokp != (struct broken_word *) NULL;
+ brokp = brokp->next_broken_word)
+ {
+ brokp->added = 0;
- /* 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 ();
+ if (brokp->dispfrag != (fragS *) NULL
+ && brokp->dispfrag->fr_type == rs_broken_word)
+ brokp->dispfrag->fr_subtype = 0;
+ }
#endif
+
+ rsi.changed = 0;
+ bfd_map_over_sections (stdoutput, relax_seg, &rsi);
+ rsi.pass++;
+ if (!rsi.changed)
+ break;
}
-#endif /* ! BFD_ASSEMBLER */
+
+ /* Note - Most ports will use the default value of
+ TC_FINALIZE_SYMS_BEFORE_SIZE_SEG, which 1. This will force
+ local symbols to be resolved, removing their frag information.
+ Some ports however, will not have finished relaxing all of
+ their frags and will still need the local symbol frag
+ information. These ports can set
+ TC_FINALIZE_SYMS_BEFORE_SIZE_SEG to 0. */
+ finalize_syms = TC_FINALIZE_SYMS_BEFORE_SIZE_SEG;
+
+ bfd_map_over_sections (stdoutput, size_seg, (char *) 0);
+
+ /* Relaxation has completed. Freeze all syms. */
+ finalize_syms = 1;
+
+#ifdef md_post_relax_hook
+ md_post_relax_hook;
+#endif
+
+#ifdef OBJ_ELF
+ if (IS_ELF)
+ create_obj_attrs_section ();
+#endif
#ifndef WORKING_DOT_WORD
{
{
expressionS exp;
+ subseg_change (lie->seg, lie->subseg);
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);
+ lie->word_goes_here - lie->frag->fr_literal,
+ 2, &exp, TC_PARSE_CONS_RETURN_NONE);
#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
addressT from_addr, to_addr;
int n, m;
+ subseg_change (lie->seg, lie->subseg);
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)
+ 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);
+ 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);
+ 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)
+ 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)
+ /* Patch the jump table. */
+ for (untruth = (struct broken_word *) (fragP->fr_symbol);
+ 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);
+ {
+ /* This is the offset from ??? to table_ptr+0.
+ The target is the same for all users of this
+ md_long_jump, but the "sub" bases (and hence the
+ offsets) may be different. */
+ addressT to_word = table_addr - S_GET_VALUE (untruth->sub);
+#ifdef TC_CHECK_ADJUSTED_BROKEN_DOT_WORD
+ TC_CHECK_ADJUSTED_BROKEN_DOT_WORD (to_word, untruth);
+#endif
+ md_number_to_chars (untruth->word_goes_here, to_word, 2);
+ }
}
- /* Install the long jump */
- /* this is a long jump from table_ptr+0 to the final target */
+ /* 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);
+ 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);
-
- obj_pre_write_hook (&headers); /* extra coff stuff */
-
- object_file_size = H_GET_FILE_SIZE (&headers);
- next_object_file_charP = the_object_file = xmalloc (object_file_size);
-
- output_file_create (out_file_name);
-
- obj_header_append (&next_object_file_charP, &headers);
-
- know ((next_object_file_charP - the_object_file) == H_GET_HEADER_SIZE (&headers));
-
- /*
- * Emit code.
- */
- for (fragP = text_frag_root; fragP; fragP = fragP->fr_next)
- {
- register long count;
- register char *fill_literal;
- register long fill_size;
-
- PROGRESS (1);
- know (fragP->fr_type == rs_fill);
- append (&next_object_file_charP, fragP->fr_literal, (unsigned long) fragP->fr_fix);
- fill_literal = fragP->fr_literal + fragP->fr_fix;
- fill_size = fragP->fr_var;
- know (fragP->fr_offset >= 0);
-
- for (count = fragP->fr_offset; count; count--)
- {
- append (&next_object_file_charP, fill_literal, (unsigned long) fill_size);
- } /* for each */
-
- } /* for each code frag. */
-
- know ((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE (&headers) + H_GET_TEXT_SIZE (&headers) + H_GET_DATA_SIZE (&headers)));
-
- /*
- * Emit relocations.
- */
- obj_emit_relocations (&next_object_file_charP, text_fix_root, (relax_addressT) 0);
- know ((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE (&headers) + H_GET_TEXT_SIZE (&headers) + H_GET_DATA_SIZE (&headers) + H_GET_TEXT_RELOCATION_SIZE (&headers)));
-#ifdef TC_I960
- /* Make addresses in data relocation directives relative to beginning of
- * first data fragment, not end of last text fragment: alignment of the
- * start of the data segment may place a gap between the segments.
- */
- obj_emit_relocations (&next_object_file_charP, data_fix_root, data0_frchainP->frch_root->fr_address);
-#else /* TC_I960 */
- obj_emit_relocations (&next_object_file_charP, data_fix_root, text_last_frag->fr_address);
-#endif /* TC_I960 */
-
- know ((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE (&headers) + H_GET_TEXT_SIZE (&headers) + H_GET_DATA_SIZE (&headers) + H_GET_TEXT_RELOCATION_SIZE (&headers) + H_GET_DATA_RELOCATION_SIZE (&headers)));
-
- /*
- * Emit line number entries.
- */
- OBJ_EMIT_LINENO (&next_object_file_charP, lineno_rootP, the_object_file);
- know ((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE (&headers) + H_GET_TEXT_SIZE (&headers) + H_GET_DATA_SIZE (&headers) + H_GET_TEXT_RELOCATION_SIZE (&headers) + H_GET_DATA_RELOCATION_SIZE (&headers) + H_GET_LINENO_SIZE (&headers)));
-
- /*
- * Emit symbols.
- */
- obj_emit_symbols (&next_object_file_charP, symbol_rootP);
- know ((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE (&headers) + H_GET_TEXT_SIZE (&headers) + H_GET_DATA_SIZE (&headers) + H_GET_TEXT_RELOCATION_SIZE (&headers) + H_GET_DATA_RELOCATION_SIZE (&headers) + H_GET_LINENO_SIZE (&headers) + H_GET_SYMBOL_TABLE_SIZE (&headers)));
-
- /*
- * Emit strings.
- */
-
- if (string_byte_count > 0)
- {
- obj_emit_strings (&next_object_file_charP);
- } /* only if we have a string table */
-
-#ifdef BFD_HEADERS
- bfd_seek (stdoutput, 0, 0);
- bfd_write (the_object_file, 1, object_file_size, stdoutput);
-#else
-
- /* Write the data to the file */
- output_file_append (the_object_file, object_file_size, out_file_name);
- free (the_object_file);
-#endif
- } /* non vms output */
-#else /* OBJ_VMS */
- /*
- * Now do the VMS-dependent part of writing the object file
- */
- vms_write_object_file (H_GET_TEXT_SIZE (&headers),
- H_GET_DATA_SIZE (&headers),
- H_GET_BSS_SIZE (&headers),
- text_frag_root, data_frag_root);
-#endif /* OBJ_VMS */
-#else /* BFD_ASSEMBLER */
+#endif /* not WORKING_DOT_WORD */
/* Resolve symbol values. This needs to be done before processing
the relocations. */
symbolS *symp;
for (symp = symbol_rootP; symp; symp = symbol_next (symp))
- if (!symp->sy_resolved)
- resolve_symbol_value (symp);
+ resolve_symbol_value (symp);
}
+ resolve_local_symbol_values ();
+ resolve_reloc_expr_symbols ();
PROGRESS (1);
obj_frob_file_before_adjust ();
#endif
- bfd_map_over_sections (stdoutput, adjust_reloc_syms, (char *)0);
+ bfd_map_over_sections (stdoutput, adjust_reloc_syms, (char *) 0);
+
+#ifdef tc_frob_file_before_fix
+ tc_frob_file_before_fix ();
+#endif
+#ifdef obj_frob_file_before_fix
+ obj_frob_file_before_fix ();
+#endif
+
+ bfd_map_over_sections (stdoutput, fix_segment, (char *) 0);
/* Set up symbol table, and write it out. */
if (symbol_rootP)
{
symbolS *symp;
+ bfd_boolean skip_next_symbol = FALSE;
for (symp = symbol_rootP; symp; symp = symbol_next (symp))
{
int punt = 0;
const char *name;
- if (symp->sy_mri_common)
+ if (skip_next_symbol)
+ {
+ /* Don't do anything besides moving the value of the
+ symbol from the GAS value-field to the BFD value-field. */
+ symbol_get_bfdsym (symp)->value = S_GET_VALUE (symp);
+ skip_next_symbol = FALSE;
+ continue;
+ }
+
+ if (symbol_mri_common_p (symp))
{
if (S_IS_EXTERNAL (symp))
- as_bad ("%s: global symbols not supported in common sections",
+ as_bad (_("%s: global symbols not supported in common sections"),
S_GET_NAME (symp));
symbol_remove (symp, &symbol_rootP, &symbol_lastP);
continue;
name = S_GET_NAME (symp);
if (name)
{
- const char *name2 = decode_local_label_name ((char *)S_GET_NAME (symp));
+ const char *name2 =
+ decode_local_label_name ((char *) S_GET_NAME (symp));
/* They only differ if `name' is a fb or dollar local
label name. */
if (name2 != name && ! S_IS_DEFINED (symp))
- as_bad ("local label %s is not defined", name2);
+ as_bad (_("local label `%s' is not defined"), name2);
}
/* Do it again, because adjust_reloc_syms might introduce
more symbols. They'll probably only be section symbols,
but they'll still need to have the values computed. */
- if (! symp->sy_resolved)
- {
- if (symp->sy_value.X_op == O_constant)
- {
- /* This is the normal case; skip the call. */
- S_SET_VALUE (symp,
- (S_GET_VALUE (symp)
- + symp->sy_frag->fr_address));
- symp->sy_resolved = 1;
- }
- else
- resolve_symbol_value (symp);
- }
+ resolve_symbol_value (symp);
/* Skip symbols which were equated to undefined or common
- symbols. */
- if (symp->sy_value.X_op == O_symbol
- && (! S_IS_DEFINED (symp) || S_IS_COMMON (symp)))
+ symbols. */
+ if (symbol_equated_reloc_p (symp)
+ || S_IS_WEAKREFR (symp))
{
+ const char *sname = S_GET_NAME (symp);
+
+ if (S_IS_COMMON (symp)
+ && !TC_FAKE_LABEL (sname)
+ && !S_IS_WEAKREFR (symp)
+ && (!S_IS_EXTERNAL (symp) || S_IS_LOCAL (symp)))
+ {
+ expressionS *e = symbol_get_value_expression (symp);
+
+ as_bad (_("Local symbol `%s' can't be equated to common symbol `%s'"),
+ sname, S_GET_NAME (e->X_add_symbol));
+ }
+ if (S_GET_SEGMENT (symp) == reg_section)
+ {
+ /* Report error only if we know the symbol name. */
+ if (S_GET_NAME (symp) != reg_section->name)
+ as_bad (_("can't make global register symbol `%s'"),
+ sname);
+ }
symbol_remove (symp, &symbol_rootP, &symbol_lastP);
continue;
}
- /* So far, common symbols have been treated like undefined symbols.
- Put them in the common section now. */
- if (S_IS_DEFINED (symp) == 0
- && S_GET_VALUE (symp) != 0)
- S_SET_SEGMENT (symp, bfd_com_section_ptr);
-#if 0
- printf ("symbol `%s'\n\t@%x: value=%d flags=%x seg=%s\n",
- S_GET_NAME (symp), symp,
- S_GET_VALUE (symp),
- symp->bsym->flags,
- segment_name (symp->bsym->section));
-#endif
-
#ifdef obj_frob_symbol
obj_frob_symbol (symp, punt);
#endif
#ifdef tc_frob_symbol
- if (! punt || symp->sy_used_in_reloc)
+ if (! punt || symbol_used_in_reloc_p (symp))
tc_frob_symbol (symp, punt);
#endif
want section symbols. Otherwise, we skip local symbols
and symbols that the frob_symbol macros told us to punt,
but we keep such symbols if they are used in relocs. */
- if ((! EMIT_SECTION_SYMBOLS
- && (symp->bsym->flags & BSF_SECTION_SYM) != 0)
- /* Note that S_IS_EXTERN and S_IS_LOCAL are not always
+ if (symp == abs_section_sym
+ || (! EMIT_SECTION_SYMBOLS
+ && symbol_section_p (symp))
+ /* Note that S_IS_EXTERNAL and S_IS_LOCAL are not always
opposites. Sometimes the former checks flags and the
latter examines the name... */
- || (!S_IS_EXTERN (symp)
- && (S_IS_LOCAL (symp) || punt)
- && ! symp->sy_used_in_reloc))
+ || (!S_IS_EXTERNAL (symp)
+ && (punt || S_IS_LOCAL (symp) ||
+ (S_IS_WEAKREFD (symp) && ! symbol_used_p (symp)))
+ && ! symbol_used_in_reloc_p (symp)))
{
symbol_remove (symp, &symbol_rootP, &symbol_lastP);
+
/* After symbol_remove, symbol_next(symp) still returns
the one that came after it in the chain. So we don't
need to do any extra cleanup work here. */
-
continue;
}
/* Make sure we really got a value for the symbol. */
- if (! symp->sy_resolved)
+ if (! symbol_resolved_p (symp))
{
- as_bad ("can't resolve value for symbol \"%s\"",
+ as_bad (_("can't resolve value for symbol `%s'"),
S_GET_NAME (symp));
- symp->sy_resolved = 1;
+ symbol_mark_resolved (symp);
}
/* Set the value into the BFD symbol. Up til now the value
has only been kept in the gas symbolS struct. */
- symp->bsym->value = S_GET_VALUE (symp);
+ symbol_get_bfdsym (symp)->value = S_GET_VALUE (symp);
+
+ /* A warning construct is a warning symbol followed by the
+ symbol warned about. Don't let anything object-format or
+ target-specific muck with it; it's ready for output. */
+ if (symbol_get_bfdsym (symp)->flags & BSF_WARNING)
+ skip_next_symbol = TRUE;
}
}
obj_adjust_symtab ();
#endif
+ /* Stop if there is an error. */
+ if (had_errors ())
+ return;
+
/* Now that all the sizes are known, and contents correct, we can
start writing to the file. */
set_symtab ();
#ifdef obj_frob_file
obj_frob_file ();
#endif
-
+#ifdef obj_coff_generate_pdata
+ obj_coff_generate_pdata ();
+#endif
bfd_map_over_sections (stdoutput, write_relocs, (char *) 0);
#ifdef tc_frob_file_after_relocs
obj_frob_file_after_relocs ();
#endif
+ /* Once all relocations have been written, we can compress the
+ contents of the debug sections. This needs to be done before
+ we start writing any sections, because it will affect the file
+ layout, which is fixed once we start writing contents. */
+ if (flag_compress_debug)
+ bfd_map_over_sections (stdoutput, compress_debug, (char *) 0);
+
bfd_map_over_sections (stdoutput, write_contents, (char *) 0);
-#endif /* BFD_ASSEMBLER */
}
-#endif /* ! BFD */
-
-/*
- * relax_segment()
- *
- * Now we have a segment, not a crowd of sub-segments, we can make fr_address
- * values.
- *
- * Relax the frags.
- *
- * After this, all frags in this segment have addresses that are correct
- * within the segment. Since segments live in different file addresses,
- * these frag addresses may not be the same as final object-file addresses.
- */
-
-#ifndef md_relax_frag
+
#ifdef TC_GENERIC_RELAX_TABLE
+/* Relax a fragment by scanning TC_GENERIC_RELAX_TABLE. */
-/* Subroutines of relax_segment. */
-static int
-is_dnrange (f1, f2)
- struct frag *f1;
- struct frag *f2;
+long
+relax_frag (segT segment, fragS *fragP, long stretch)
{
- for (; f1; f1 = f1->fr_next)
- if (f1->fr_next == f2)
- return 1;
- return 0;
+ const relax_typeS *this_type;
+ const relax_typeS *start_type;
+ relax_substateT next_state;
+ relax_substateT this_state;
+ offsetT growth;
+ offsetT aim;
+ addressT target;
+ addressT address;
+ symbolS *symbolP;
+ const relax_typeS *table;
+
+ target = fragP->fr_offset;
+ address = fragP->fr_address;
+ table = TC_GENERIC_RELAX_TABLE;
+ this_state = fragP->fr_subtype;
+ start_type = this_type = table + this_state;
+ symbolP = fragP->fr_symbol;
+
+ if (symbolP)
+ {
+ fragS *sym_frag;
+
+ sym_frag = symbol_get_frag (symbolP);
+
+#ifndef DIFF_EXPR_OK
+ know (sym_frag != NULL);
+#endif
+ know (S_GET_SEGMENT (symbolP) != absolute_section
+ || sym_frag == &zero_address_frag);
+ target += S_GET_VALUE (symbolP);
+
+ /* If SYM_FRAG has yet to be reached on this pass, assume it
+ will move by STRETCH just as we did, unless there is an
+ alignment frag between here and SYM_FRAG. An alignment may
+ well absorb any STRETCH, and we don't want to choose a larger
+ branch insn by overestimating the needed reach of this
+ branch. It isn't critical to calculate TARGET exactly; We
+ know we'll be doing another pass if STRETCH is non-zero. */
+
+ if (stretch != 0
+ && sym_frag->relax_marker != fragP->relax_marker
+ && S_GET_SEGMENT (symbolP) == segment)
+ {
+ if (stretch < 0
+ || sym_frag->region == fragP->region)
+ target += stretch;
+ /* If we get here we know we have a forward branch. This
+ relax pass may have stretched previous instructions so
+ far that omitting STRETCH would make the branch
+ negative. Don't allow this in case the negative reach is
+ large enough to require a larger branch instruction. */
+ else if (target < address)
+ target = fragP->fr_next->fr_address + stretch;
+ }
+ }
+
+ aim = target - address - fragP->fr_fix;
+#ifdef TC_PCREL_ADJUST
+ /* Currently only the ns32k family needs this. */
+ aim += TC_PCREL_ADJUST (fragP);
+#endif
+
+#ifdef md_prepare_relax_scan
+ /* Formerly called M68K_AIM_KLUDGE. */
+ md_prepare_relax_scan (fragP, address, aim, this_state, this_type);
+#endif
+
+ if (aim < 0)
+ {
+ /* Look backwards. */
+ for (next_state = this_type->rlx_more; next_state;)
+ if (aim >= this_type->rlx_backward)
+ next_state = 0;
+ else
+ {
+ /* Grow to next state. */
+ this_state = next_state;
+ this_type = table + this_state;
+ next_state = this_type->rlx_more;
+ }
+ }
+ else
+ {
+ /* Look forwards. */
+ for (next_state = this_type->rlx_more; next_state;)
+ if (aim <= this_type->rlx_forward)
+ next_state = 0;
+ else
+ {
+ /* Grow to next state. */
+ this_state = next_state;
+ this_type = table + this_state;
+ next_state = this_type->rlx_more;
+ }
+ }
+
+ growth = this_type->rlx_length - start_type->rlx_length;
+ if (growth != 0)
+ fragP->fr_subtype = this_state;
+ return growth;
}
-#endif /* defined (TC_GENERIC_RELAX_TABLE) */
-#endif /* ! defined (md_relax_frag) */
+#endif /* defined (TC_GENERIC_RELAX_TABLE) */
/* Relax_align. Advance location counter to next address that has 'alignment'
lowest order bits all 0s, return size of adjustment made. */
static relax_addressT
-relax_align (address, alignment)
- register relax_addressT address; /* Address now. */
- register int alignment; /* Alignment (binary). */
+relax_align (relax_addressT address, /* Address now. */
+ int alignment /* Alignment (binary). */)
{
relax_addressT mask;
relax_addressT new_address;
- mask = ~((~0) << alignment);
+ mask = ~((relax_addressT) ~0 << alignment);
new_address = (address + mask) & (~mask);
#ifdef LINKER_RELAXING_SHRINKS_ONLY
if (linkrelax)
return (new_address - address);
}
-void
-relax_segment (segment_frag_root, segment)
- struct frag *segment_frag_root;
- segT segment;
+/* Now we have a segment, not a crowd of sub-segments, we can make
+ fr_address values.
+
+ Relax the frags.
+
+ After this, all frags in this segment have addresses that are correct
+ within the segment. Since segments live in different file addresses,
+ these frag addresses may not be the same as final object-file
+ addresses. */
+
+int
+relax_segment (struct frag *segment_frag_root, segT segment, int pass)
{
- register struct frag *fragP;
- register relax_addressT address;
-#if !defined (MANY_SEGMENTS) && !defined (BFD_ASSEMBLER)
- know (segment == SEG_DATA || segment == SEG_TEXT || segment == SEG_BSS);
-#endif
- /* In case md_estimate_size_before_relax() wants to make fixSs. */
+ unsigned long frag_count;
+ struct frag *fragP;
+ relax_addressT address;
+ int region;
+ int ret;
+
+ /* In case md_estimate_size_before_relax() wants to make fixSs. */
subseg_change (segment, 0);
/* For each frag in segment: count and store (a 1st guess of)
fr_address. */
address = 0;
- for (fragP = segment_frag_root; fragP; fragP = fragP->fr_next)
+ region = 0;
+ for (frag_count = 0, fragP = segment_frag_root;
+ fragP;
+ fragP = fragP->fr_next, frag_count ++)
{
+ fragP->region = region;
+ fragP->relax_marker = 0;
fragP->fr_address = address;
address += fragP->fr_fix;
case rs_align:
case rs_align_code:
+ case rs_align_test:
{
- int offset = relax_align (address, (int) fragP->fr_offset);
+ addressT offset = relax_align (address, (int) fragP->fr_offset);
+
+ if (fragP->fr_subtype != 0 && offset > fragP->fr_subtype)
+ offset = 0;
+
if (offset % fragP->fr_var != 0)
{
- as_bad ("alignment padding (%d bytes) not a multiple of %ld",
- offset, (long) fragP->fr_var);
+ as_bad_where (fragP->fr_file, fragP->fr_line,
+ _("alignment padding (%lu bytes) not a multiple of %ld"),
+ (unsigned long) offset, (long) fragP->fr_var);
offset -= (offset % fragP->fr_var);
}
+
address += offset;
+ region += 1;
}
break;
case rs_org:
- case rs_space:
/* Assume .org is nugatory. It will grow with 1st relax. */
+ region += 1;
+ break;
+
+ case rs_space:
break;
case rs_machine_dependent:
+ /* If fr_symbol is an expression, this call to
+ resolve_symbol_value sets up the correct segment, which will
+ likely be needed in md_estimate_size_before_relax. */
+ if (fragP->fr_symbol)
+ resolve_symbol_value (fragP->fr_symbol);
+
address += md_estimate_size_before_relax (fragP, segment);
break;
#ifndef WORKING_DOT_WORD
- /* Broken words don't concern us yet */
+ /* Broken words don't concern us yet. */
case rs_broken_word:
break;
#endif
+ case rs_leb128:
+ /* Initial guess is always 1; doing otherwise can result in
+ stable solutions that are larger than the minimum. */
+ address += fragP->fr_offset = 1;
+ break;
+
+ case rs_cfa:
+ address += eh_frame_estimate_size_before_relax (fragP);
+ break;
+
+ case rs_dwarf2dbg:
+ address += dwarf2dbg_estimate_size_before_relax (fragP);
+ break;
+
default:
BAD_CASE (fragP->fr_type);
break;
- } /* switch(fr_type) */
- } /* for each frag in the segment */
+ }
+ }
/* Do relax(). */
{
- long stretch; /* May be any size, 0 or negative. */
- /* Cumulative number of addresses we have */
- /* relaxed this pass. */
- /* We may have relaxed more than one address. */
- long stretched; /* Have we stretched on this pass? */
- /* This is 'cuz stretch may be zero, when, in fact some piece of code
- grew, and another shrank. If a branch instruction doesn't fit anymore,
- we could be scrod. */
-
+ unsigned long max_iterations;
+
+ /* Cumulative address adjustment. */
+ offsetT stretch;
+
+ /* Have we made any adjustment this pass? We can't just test
+ stretch because one piece of code may have grown and another
+ shrank. */
+ int stretched;
+
+ /* Most horrible, but gcc may give us some exception data that
+ is impossible to assemble, of the form
+
+ .align 4
+ .byte 0, 0
+ .uleb128 end - start
+ start:
+ .space 128*128 - 1
+ .align 4
+ end:
+
+ If the leb128 is two bytes in size, then end-start is 128*128,
+ which requires a three byte leb128. If the leb128 is three
+ bytes in size, then end-start is 128*128-1, which requires a
+ two byte leb128. We work around this dilemma by inserting
+ an extra 4 bytes of alignment just after the .align. This
+ works because the data after the align is accessed relative to
+ the end label.
+
+ This counter is used in a tiny state machine to detect
+ whether a leb128 followed by an align is impossible to
+ relax. */
+ int rs_leb128_fudge = 0;
+
+ /* We want to prevent going into an infinite loop where one frag grows
+ depending upon the location of a symbol which is in turn moved by
+ the growing frag. eg:
+
+ foo = .
+ .org foo+16
+ foo = .
+
+ So we dictate that this algorithm can be at most O2. */
+ max_iterations = frag_count * frag_count;
+ /* Check for overflow. */
+ if (max_iterations < frag_count)
+ max_iterations = frag_count;
+
+ ret = 0;
do
{
- stretch = stretched = 0;
+ stretch = 0;
+ stretched = 0;
+
for (fragP = segment_frag_root; fragP; fragP = fragP->fr_next)
{
- long growth = 0;
- unsigned long was_address;
- long offset;
+ offsetT growth = 0;
+ addressT was_address;
+ offsetT offset;
symbolS *symbolP;
- long target;
- long after;
+ fragP->relax_marker ^= 1;
was_address = fragP->fr_address;
address = fragP->fr_address += stretch;
symbolP = fragP->fr_symbol;
switch (fragP->fr_type)
{
- case rs_fill: /* .fill never relaxes. */
+ case rs_fill: /* .fill never relaxes. */
growth = 0;
break;
if (lie->added)
continue;
- offset = (lie->add->sy_frag->fr_address
- + S_GET_VALUE (lie->add)
+ offset = (S_GET_VALUE (lie->add)
+ lie->addnum
- - (lie->sub->sy_frag->fr_address
- + S_GET_VALUE (lie->sub)));
+ - S_GET_VALUE (lie->sub));
if (offset <= -32768 || offset >= 32767)
{
if (flag_warn_displacement)
{
char buf[50];
sprint_value (buf, (addressT) lie->addnum);
- as_warn (".word %s-%s+%s didn't fit",
- S_GET_NAME (lie->add),
- S_GET_NAME (lie->sub),
- buf);
+ as_warn_where (fragP->fr_file, fragP->fr_line,
+ _(".word %s-%s+%s didn't fit"),
+ S_GET_NAME (lie->add),
+ S_GET_NAME (lie->sub),
+ buf);
}
- lie->added = 1;
if (fragP->fr_subtype == 0)
{
fragP->fr_subtype++;
growth += md_short_jump_size;
}
- for (untruth = lie->next_broken_word;
+
+ /* Redirect *all* words of this table with the same
+ target, lest we have to handle the case where the
+ same target but with a offset that fits on this
+ round overflows at the next relaxation round. */
+ for (untruth = (struct broken_word *) (fragP->fr_symbol);
untruth && untruth->dispfrag == lie->dispfrag;
untruth = untruth->next_broken_word)
- if ((untruth->add->sy_frag == lie->add->sy_frag)
- && S_GET_VALUE (untruth->add) == S_GET_VALUE (lie->add))
+ if ((symbol_get_frag (untruth->add)
+ == symbol_get_frag (lie->add))
+ && (S_GET_VALUE (untruth->add)
+ == S_GET_VALUE (lie->add)))
{
untruth->added = 2;
untruth->use_jump = lie;
}
+
+ lie->added = 1;
growth += md_long_jump_size;
}
}
break;
- } /* case rs_broken_word */
+ } /* case rs_broken_word */
#endif
case rs_align:
case rs_align_code:
- growth = (relax_align ((relax_addressT) (address
- + fragP->fr_fix),
- (int) offset)
- - relax_align ((relax_addressT) (was_address
- + fragP->fr_fix),
- (int) offset));
+ case rs_align_test:
+ {
+ addressT oldoff, newoff;
+
+ oldoff = relax_align (was_address + fragP->fr_fix,
+ (int) offset);
+ newoff = relax_align (address + fragP->fr_fix,
+ (int) offset);
+
+ if (fragP->fr_subtype != 0)
+ {
+ if (oldoff > fragP->fr_subtype)
+ oldoff = 0;
+ if (newoff > fragP->fr_subtype)
+ newoff = 0;
+ }
+
+ growth = newoff - oldoff;
+
+ /* If this align happens to follow a leb128 and
+ we have determined that the leb128 is bouncing
+ in size, then break the cycle by inserting an
+ extra alignment. */
+ if (growth < 0
+ && (rs_leb128_fudge & 16) != 0
+ && (rs_leb128_fudge & 15) >= 2)
+ {
+ segment_info_type *seginfo = seg_info (segment);
+ struct obstack *ob = &seginfo->frchainP->frch_obstack;
+ struct frag *newf;
+
+ newf = frag_alloc (ob);
+ obstack_blank_fast (ob, fragP->fr_var);
+ obstack_finish (ob);
+ memcpy (newf, fragP, SIZEOF_STRUCT_FRAG);
+ memcpy (newf->fr_literal,
+ fragP->fr_literal + fragP->fr_fix,
+ fragP->fr_var);
+ newf->fr_type = rs_fill;
+ newf->fr_address = address + fragP->fr_fix + newoff;
+ newf->fr_fix = 0;
+ newf->fr_offset = (((offsetT) 1 << fragP->fr_offset)
+ / fragP->fr_var);
+ if (newf->fr_offset * newf->fr_var
+ != (offsetT) 1 << fragP->fr_offset)
+ {
+ newf->fr_offset = (offsetT) 1 << fragP->fr_offset;
+ newf->fr_var = 1;
+ }
+ /* Include size of new frag in GROWTH. */
+ growth += newf->fr_offset * newf->fr_var;
+ /* Adjust the new frag address for the amount
+ we'll add when we process the new frag. */
+ newf->fr_address -= stretch + growth;
+ newf->relax_marker ^= 1;
+ fragP->fr_next = newf;
+#ifdef DEBUG
+ as_warn (_("padding added"));
+#endif
+ }
+ }
break;
case rs_org:
- target = offset;
+ {
+ addressT target = offset;
+ addressT after;
- if (symbolP)
- {
-#if !defined (MANY_SEGMENTS) && !defined (BFD_ASSEMBLER)
- know ((S_GET_SEGMENT (symbolP) == SEG_ABSOLUTE)
- || (S_GET_SEGMENT (symbolP) == SEG_DATA)
- || (S_GET_SEGMENT (symbolP) == SEG_TEXT)
- || S_GET_SEGMENT (symbolP) == SEG_BSS);
- know (symbolP->sy_frag);
- know (!(S_GET_SEGMENT (symbolP) == SEG_ABSOLUTE)
- || (symbolP->sy_frag == &zero_address_frag));
-#endif
- target += S_GET_VALUE (symbolP)
- + symbolP->sy_frag->fr_address;
- } /* if we have a symbol */
-
- know (fragP->fr_next);
- after = fragP->fr_next->fr_address;
- growth = target - after;
- if (growth < 0)
- {
- /* Growth may be negative, but variable part of frag
- cannot have fewer than 0 chars. That is, we can't
- .org backwards. */
- as_bad ("attempt to .org backwards ignored");
- growth = 0;
- }
+ if (symbolP)
+ {
+ /* Convert from an actual address to an octet offset
+ into the section. Here it is assumed that the
+ section's VMA is zero, and can omit subtracting it
+ from the symbol's value to get the address offset. */
+ know (S_GET_SEGMENT (symbolP)->vma == 0);
+ target += S_GET_VALUE (symbolP) * OCTETS_PER_BYTE;
+ }
+
+ know (fragP->fr_next);
+ after = fragP->fr_next->fr_address + stretch;
+ growth = target - after;
+ if (growth < 0)
+ {
+ growth = 0;
+
+ /* Don't error on first few frag relax passes.
+ The symbol might be an expression involving
+ symbol values from other sections. If those
+ sections have not yet been processed their
+ frags will all have zero addresses, so we
+ will calculate incorrect values for them. The
+ number of passes we allow before giving an
+ error is somewhat arbitrary. It should be at
+ least one, with larger values requiring
+ increasingly contrived dependencies between
+ frags to trigger a false error. */
+ if (pass < 2)
+ {
+ /* Force another pass. */
+ ret = 1;
+ break;
+ }
- growth -= stretch; /* This is an absolute growth factor */
+ /* Growth may be negative, but variable part of frag
+ cannot have fewer than 0 chars. That is, we can't
+ .org backwards. */
+ as_bad_where (fragP->fr_file, fragP->fr_line,
+ _("attempt to move .org backwards"));
+
+ /* We've issued an error message. Change the
+ frag to avoid cascading errors. */
+ fragP->fr_type = rs_align;
+ fragP->fr_subtype = 0;
+ fragP->fr_offset = 0;
+ fragP->fr_fix = after - address;
+ }
+ }
break;
case rs_space:
+ growth = 0;
if (symbolP)
{
- growth = S_GET_VALUE (symbolP);
- if (symbolP->sy_frag != &zero_address_frag)
- as_bad (".space specifies non-absolute value");
- fragP->fr_symbol = 0;
- if (growth < 0)
+ offsetT amount;
+
+ amount = S_GET_VALUE (symbolP);
+ if (S_GET_SEGMENT (symbolP) != absolute_section
+ || S_IS_COMMON (symbolP)
+ || ! S_IS_DEFINED (symbolP))
+ {
+ as_bad_where (fragP->fr_file, fragP->fr_line,
+ _(".space specifies non-absolute value"));
+ /* Prevent repeat of this error message. */
+ fragP->fr_symbol = 0;
+ }
+ else if (amount < 0)
{
- as_warn (".space or .fill with negative value, ignored");
- growth = 0;
+ /* Don't error on first few frag relax passes.
+ See rs_org comment for a longer explanation. */
+ if (pass < 2)
+ {
+ ret = 1;
+ break;
+ }
+
+ as_warn_where (fragP->fr_file, fragP->fr_line,
+ _(".space or .fill with negative value, ignored"));
+ fragP->fr_symbol = 0;
}
+ else
+ growth = (was_address + fragP->fr_fix + amount
+ - fragP->fr_next->fr_address);
}
- else
- growth = 0;
break;
case rs_machine_dependent:
#ifdef md_relax_frag
- growth = md_relax_frag (fragP, stretch);
+ growth = md_relax_frag (segment, fragP, stretch);
#else
#ifdef TC_GENERIC_RELAX_TABLE
/* The default way to relax a frag is to look through
- md_relax_table. */
- {
- const relax_typeS *this_type;
- const relax_typeS *start_type;
- relax_substateT next_state;
- relax_substateT this_state;
- long aim;
- const relax_typeS *table = TC_GENERIC_RELAX_TABLE;
-
- this_state = fragP->fr_subtype;
- start_type = this_type = table + this_state;
- target = offset;
-
- if (symbolP)
- {
-#ifndef DIFF_EXPR_OK
-#if !defined (MANY_SEGMENTS) && !defined (BFD_ASSEMBLER)
- know ((S_GET_SEGMENT (symbolP) == SEG_ABSOLUTE)
- || (S_GET_SEGMENT (symbolP) == SEG_DATA)
- || (S_GET_SEGMENT (symbolP) == SEG_BSS)
- || (S_GET_SEGMENT (symbolP) == SEG_TEXT));
-#endif
- know (symbolP->sy_frag);
+ TC_GENERIC_RELAX_TABLE. */
+ growth = relax_frag (segment, fragP, stretch);
+#endif /* TC_GENERIC_RELAX_TABLE */
#endif
- know (!(S_GET_SEGMENT (symbolP) == absolute_section)
- || symbolP->sy_frag == &zero_address_frag);
- target +=
- S_GET_VALUE (symbolP)
- + symbolP->sy_frag->fr_address;
-
- /* If frag has yet to be reached on this pass,
- assume it will move by STRETCH just as we did.
- If this is not so, it will be because some frag
- between grows, and that will force another pass.
-
- Beware zero-length frags.
-
- There should be a faster way to do this. */
+ break;
- if (symbolP->sy_frag->fr_address >= was_address
- && is_dnrange (fragP, symbolP->sy_frag))
- {
- target += stretch;
- }
- }
+ case rs_leb128:
+ {
+ valueT value;
+ offsetT size;
- aim = target - address - fragP->fr_fix;
-#ifdef TC_PCREL_ADJUST
- /* Currently only the ns32k family needs this */
- aim += TC_PCREL_ADJUST(fragP);
-#else
- /* This machine doesn't want to use pcrel_adjust.
- In that case, pcrel_adjust should be zero. */
- assert (fragP->fr_pcrel_adjust == 0);
-#endif
+ value = resolve_symbol_value (fragP->fr_symbol);
+ size = sizeof_leb128 (value, fragP->fr_subtype);
+ growth = size - fragP->fr_offset;
+ fragP->fr_offset = size;
+ }
+ break;
- if (aim < 0)
- {
- /* Look backwards. */
- for (next_state = this_type->rlx_more; next_state;)
- if (aim >= this_type->rlx_backward)
- next_state = 0;
- else
- {
- /* Grow to next state. */
- this_state = next_state;
- this_type = table + this_state;
- next_state = this_type->rlx_more;
- }
- }
- else
- {
-#ifdef M68K_AIM_KLUDGE
- M68K_AIM_KLUDGE (aim, this_state, this_type);
-#endif
- /* Look forwards. */
- for (next_state = this_type->rlx_more; next_state;)
- if (aim <= this_type->rlx_forward)
- next_state = 0;
- else
- {
- /* Grow to next state. */
- this_state = next_state;
- this_type = table + this_state;
- next_state = this_type->rlx_more;
- }
- }
+ case rs_cfa:
+ growth = eh_frame_relax_frag (fragP);
+ break;
- growth = this_type->rlx_length - start_type->rlx_length;
- if (growth != 0)
- fragP->fr_subtype = this_state;
- }
-#endif /* TC_GENERIC_RELAX_TABLE */
-#endif
+ case rs_dwarf2dbg:
+ growth = dwarf2dbg_relax_frag (fragP);
break;
default:
if (growth)
{
stretch += growth;
- stretched++;
+ stretched = 1;
+ if (fragP->fr_type == rs_leb128)
+ rs_leb128_fudge += 16;
+ else if (fragP->fr_type == rs_align
+ && (rs_leb128_fudge & 16) != 0
+ && stretch == 0)
+ rs_leb128_fudge += 16;
+ else
+ rs_leb128_fudge = 0;
}
- } /* For each frag in the segment. */
- }
- while (stretched); /* Until nothing further to relax. */
- } /* do_relax */
-
- /*
- * We now have valid fr_address'es for each frag.
- */
-
- /*
- * All fr_address's are correct, relative to their own segment.
- * We have made all the fixS we will ever make.
- */
-} /* relax_segment() */
-
-#if defined (BFD_ASSEMBLER) || (!defined (BFD) && !defined (OBJ_VMS))
-
-#ifndef TC_RELOC_RTSYM_LOC_FIXUP
-#define TC_RELOC_RTSYM_LOC_FIXUP(X) (1)
-#endif
-
-/* fixup_segment()
-
- Go through all the fixS's in a segment and see which ones can be
- handled now. (These consist of fixS where we have since discovered
- the value of a symbol, or the address of the frag involved.)
- For each one, call md_apply_fix to put the fix into the frag data.
-
- Result is a count of how many relocation structs will be needed to
- handle the remaining fixS's that we couldn't completely handle here.
- These will be output later by emit_relocations(). */
-
-static long
-fixup_segment (fixP, this_segment_type)
- register fixS *fixP;
- segT this_segment_type; /* N_TYPE bits for segment. */
-{
- long seg_reloc_count = 0;
- symbolS *add_symbolP;
- symbolS *sub_symbolP;
- valueT add_number;
- int size;
- char *place;
- long where;
- int pcrel, plt;
- fragS *fragP;
- segT add_symbol_segment = absolute_section;
-
- /* If the linker is doing the relaxing, we must not do any fixups.
-
- Well, strictly speaking that's not true -- we could do any that are
- PC-relative and don't cross regions that could change size. And for the
- i960 (the only machine for which we've got a relaxing linker right now),
- we might be able to turn callx/callj into bal anyways in cases where we
- know the maximum displacement. */
- if (linkrelax)
- {
- for (; fixP; fixP = fixP->fx_next)
- seg_reloc_count++;
- TC_ADJUST_RELOC_COUNT (fixP, seg_reloc_count);
- return seg_reloc_count;
- }
-
- for (; fixP; fixP = fixP->fx_next)
- {
-#ifdef DEBUG5
- fprintf (stderr, "\nprocessing fixup:\n");
- print_fixup (fixP);
-#endif
-
- fragP = fixP->fx_frag;
- know (fragP);
- where = fixP->fx_where;
- place = fragP->fr_literal + where;
- size = fixP->fx_size;
- add_symbolP = fixP->fx_addsy;
-#ifdef TC_VALIDATE_FIX
- TC_VALIDATE_FIX (fixP, this_segment_type, skip);
-#endif
- sub_symbolP = fixP->fx_subsy;
- add_number = fixP->fx_offset;
- pcrel = fixP->fx_pcrel;
- plt = fixP->fx_plt;
-
- if (add_symbolP != NULL
- && add_symbolP->sy_mri_common)
- {
- know (add_symbolP->sy_value.X_op == O_symbol);
- add_number += S_GET_VALUE (add_symbolP);
- fixP->fx_offset = add_number;
- add_symbolP = fixP->fx_addsy = add_symbolP->sy_value.X_add_symbol;
- }
-
- if (add_symbolP)
- add_symbol_segment = S_GET_SEGMENT (add_symbolP);
-
- if (sub_symbolP)
- {
- resolve_symbol_value (sub_symbolP);
- if (add_symbolP == NULL || add_symbol_segment == absolute_section)
- {
- if (add_symbolP != NULL)
- {
- add_number += S_GET_VALUE (add_symbolP);
- add_symbolP = NULL;
- fixP->fx_addsy = NULL;
- }
-
- /* It's just -sym */
- if (S_GET_SEGMENT (sub_symbolP) == absolute_section)
- {
- add_number -= S_GET_VALUE (sub_symbolP);
- fixP->fx_subsy = NULL;
- }
- else if (pcrel
- && S_GET_SEGMENT (sub_symbolP) == this_segment_type)
- {
- /* Should try converting to a constant. */
- goto bad_sub_reloc;
- }
- else
- bad_sub_reloc:
- as_bad_where (fixP->fx_file, fixP->fx_line,
- "Negative of non-absolute symbol %s",
- S_GET_NAME (sub_symbolP));
- }
- else if (S_GET_SEGMENT (sub_symbolP) == add_symbol_segment
- && SEG_NORMAL (add_symbol_segment))
- {
- /* Difference of 2 symbols from same segment.
- Can't make difference of 2 undefineds: 'value' means
- something different for N_UNDF. */
-#ifdef TC_I960
- /* Makes no sense to use the difference of 2 arbitrary symbols
- as the target of a call instruction. */
- if (fixP->fx_tcbit)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- "callj to difference of 2 symbols");
-#endif /* TC_I960 */
- add_number += S_GET_VALUE (add_symbolP) -
- S_GET_VALUE (sub_symbolP);
-
- add_symbolP = NULL;
- pcrel = 0; /* No further pcrel processing. */
-
- /* Let the target machine make the final determination
- as to whether or not a relocation will be needed to
- handle this fixup. */
- if (!TC_FORCE_RELOCATION_SECTION (fixP, this_segment_type))
- {
- fixP->fx_pcrel = 0;
- fixP->fx_addsy = NULL;
- fixP->fx_subsy = NULL;
- }
- }
- else
- {
- /* Different segments in subtraction. */
- know (!(S_IS_EXTERNAL (sub_symbolP)
- && (S_GET_SEGMENT (sub_symbolP) == absolute_section)));
-
- if ((S_GET_SEGMENT (sub_symbolP) == absolute_section))
- add_number -= S_GET_VALUE (sub_symbolP);
-
-#ifdef DIFF_EXPR_OK
- else if (S_GET_SEGMENT (sub_symbolP) == this_segment_type
-#if 0 /* Do this even if it's already described as pc-relative. For example,
- on the m68k, an operand of "pc@(foo-.-2)" should address "foo" in a
- pc-relative mode. */
- && pcrel
-#endif
- )
- {
- /* Make it pc-relative. */
- add_number += (MD_PCREL_FROM_SECTION (fixP, this_segment_type)
- - S_GET_VALUE (sub_symbolP));
- pcrel = 1;
- fixP->fx_pcrel = 1;
- sub_symbolP = 0;
- fixP->fx_subsy = 0;
- }
-#endif
-#ifdef UNDEFINED_DIFFERENCE_OK
- /* The PA needs this for PIC code generation. We basically
- don't want to do anything if we have the difference of two
- symbols at this point. */
- else if (1)
- {
- /* Leave it alone. */
- }
-#endif
-#ifdef BFD_ASSEMBLER
- else if (fixP->fx_r_type == BFD_RELOC_GPREL32
- || fixP->fx_r_type == BFD_RELOC_GPREL16)
- {
- /* Leave it alone. */
- }
-#endif
- else
- {
- char buf[50];
- sprint_value (buf, fragP->fr_address + where);
- as_bad_where (fixP->fx_file, fixP->fx_line,
- "Can't emit reloc {- %s-seg symbol \"%s\"} @ file address %s.",
- segment_name (S_GET_SEGMENT (sub_symbolP)),
- S_GET_NAME (sub_symbolP), buf);
- }
- }
- }
-
- if (add_symbolP)
- {
- if (add_symbol_segment == this_segment_type && pcrel && !plt
- && TC_RELOC_RTSYM_LOC_FIXUP (fixP))
- {
- /*
- * This fixup was made when the symbol's segment was
- * SEG_UNKNOWN, but it is now in the local segment.
- * So we know how to do the address without relocation.
- */
-#ifdef TC_I960
- /* reloc_callj() may replace a 'call' with a 'calls' or a
- 'bal', in which cases it modifies *fixP as appropriate.
- In the case of a 'calls', no further work is required,
- and *fixP has been set up to make the rest of the code
- below a no-op. */
- reloc_callj (fixP);
-#endif /* TC_I960 */
-
- add_number += S_GET_VALUE (add_symbolP);
- add_number -= MD_PCREL_FROM_SECTION (fixP, this_segment_type);
- pcrel = 0; /* Lie. Don't want further pcrel processing. */
-
- /* Let the target machine make the final determination
- as to whether or not a relocation will be needed to
- handle this fixup. */
- if (!TC_FORCE_RELOCATION (fixP))
- {
- fixP->fx_pcrel = 0;
- fixP->fx_addsy = NULL;
- }
- }
- else
- {
- if (add_symbol_segment == absolute_section
- && ! pcrel)
- {
-#ifdef TC_I960
- /* See comment about reloc_callj() above. */
- reloc_callj (fixP);
-#endif /* TC_I960 */
- add_number += S_GET_VALUE (add_symbolP);
-
- /* Let the target machine make the final determination
- as to whether or not a relocation will be needed to
- handle this fixup. */
-
- if (!TC_FORCE_RELOCATION (fixP))
- {
- fixP->fx_addsy = NULL;
- add_symbolP = NULL;
- }
- }
- else if (add_symbol_segment == undefined_section
-#ifdef BFD_ASSEMBLER
- || bfd_is_com_section (add_symbol_segment)
-#endif
- )
- {
-#ifdef TC_I960
- if ((int) fixP->fx_bit_fixP == 13)
- {
- /* This is a COBR instruction. They have only a
- * 13-bit displacement and are only to be used
- * for local branches: flag as error, don't generate
- * relocation.
- */
- as_bad_where (fixP->fx_file, fixP->fx_line,
- "can't use COBR format with external label");
- fixP->fx_addsy = NULL;
- fixP->fx_done = 1;
- continue;
- } /* COBR */
-#endif /* TC_I960 */
-
-#ifdef OBJ_COFF
-#ifdef TE_I386AIX
- if (S_IS_COMMON (add_symbolP))
- add_number += S_GET_VALUE (add_symbolP);
-#endif /* TE_I386AIX */
-#endif /* OBJ_COFF */
- ++seg_reloc_count;
- }
- else
- {
- seg_reloc_count++;
-/* start-sanitize-v850 */
-#if !(defined (TC_V850) && defined (OBJ_ELF))
-/* end-sanitize-v850 */
-#if !(defined (TC_M68K) && defined (OBJ_ELF))
-#if !defined (TC_I386) || !(defined (OBJ_ELF) || defined (OBJ_COFF))
- add_number += S_GET_VALUE (add_symbolP);
-/* start-sanitize-v850 */
-#endif
-/* end-sanitize-v850 */
-#endif
-#endif
- }
- }
- }
-
- if (pcrel)
- {
- add_number -= MD_PCREL_FROM_SECTION (fixP, this_segment_type);
- if (add_symbolP == 0)
- {
-#ifndef BFD_ASSEMBLER
- fixP->fx_addsy = &abs_symbol;
-#else
- fixP->fx_addsy = section_symbol (absolute_section);
-#endif
- fixP->fx_addsy->sy_used_in_reloc = 1;
- ++seg_reloc_count;
- }
- }
-
- if (!fixP->fx_bit_fixP && !fixP->fx_no_overflow && size > 0)
- {
- valueT mask = 0;
- if (size < sizeof (mask))
- {
- /* set all bits to one */
- mask--;
- /* Technically, combining these produces an undefined result
- if size is sizeof (valueT), though I think these two
- half-way operations should both be defined. And the
- compiler should be able to combine them if it's valid on
- the host architecture. */
- mask <<= size * 4;
- mask <<= size * 4;
- if ((add_number & mask) != 0
- && (add_number & mask) != mask)
- {
- char buf[50], buf2[50];
- sprint_value (buf, fragP->fr_address + where);
- if (add_number > 1000)
- sprint_value (buf2, add_number);
- else
- sprintf (buf2, "%ld", (long) add_number);
- as_bad_where (fixP->fx_file, fixP->fx_line,
- "Value of %s too large for field of %d bytes at %s",
- buf2, size, buf);
- } /* generic error checking */
- }
-#ifdef WARN_SIGNED_OVERFLOW_WORD
- /* Warn if a .word value is too large when treated as a signed
- number. We already know it is not too negative. This is to
- catch over-large switches generated by gcc on the 68k. */
- if (!flag_signed_overflow_ok
- && size == 2
- && add_number > 0x7fff)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- "Signed .word overflow; switch may be too large; %ld at 0x%lx",
- (long) add_number,
- (unsigned long) (fragP->fr_address + where));
-#endif
- } /* not a bit fix */
+ }
- if (!fixP->fx_done)
- {
-#ifdef MD_APPLY_FIX3
- md_apply_fix3 (fixP, &add_number, this_segment_type);
-#else
-#ifdef BFD_ASSEMBLER
- md_apply_fix (fixP, &add_number);
-#else
- md_apply_fix (fixP, add_number);
-#endif
-#endif
+ if (stretch == 0
+ && (rs_leb128_fudge & 16) == 0
+ && (rs_leb128_fudge & -16) != 0)
+ rs_leb128_fudge += 1;
+ else
+ rs_leb128_fudge = 0;
+ }
+ /* Until nothing further to relax. */
+ while (stretched && -- max_iterations);
-#ifndef TC_HANDLES_FX_DONE
- /* If the tc-* files haven't been converted, assume it's handling
- it the old way, where a null fx_addsy means that the fix has
- been applied completely, and no further work is needed. */
- if (fixP->fx_addsy == 0 && fixP->fx_pcrel == 0)
- fixP->fx_done = 1;
-#endif
- }
-#ifdef TC_VALIDATE_FIX
- skip: ;
-#endif
-#ifdef DEBUG5
- fprintf (stderr, "result:\n");
- print_fixup (fixP);
-#endif
- } /* For each fixS in this segment. */
+ if (stretched)
+ as_fatal (_("Infinite loop encountered whilst attempting to compute the addresses of symbols in section %s"),
+ segment_name (segment));
+ }
- TC_ADJUST_RELOC_COUNT (fixP, seg_reloc_count);
- return seg_reloc_count;
+ for (fragP = segment_frag_root; fragP; fragP = fragP->fr_next)
+ if (fragP->last_fr_address != fragP->fr_address)
+ {
+ fragP->last_fr_address = fragP->fr_address;
+ ret = 1;
+ }
+ return ret;
}
-#endif /* defined (BFD_ASSEMBLER) || (!defined (BFD) && !defined (OBJ_VMS)) */
-
void
-number_to_chars_bigendian (buf, val, n)
- char *buf;
- valueT val;
- int n;
+number_to_chars_bigendian (char *buf, valueT val, int n)
{
- if (n > sizeof (val)|| n <= 0)
+ if (n <= 0)
abort ();
while (n--)
{
}
void
-number_to_chars_littleendian (buf, val, n)
- char *buf;
- valueT val;
- int n;
+number_to_chars_littleendian (char *buf, valueT val, int n)
{
- if (n > sizeof (val) || n <= 0)
+ if (n <= 0)
abort ();
while (n--)
{
}
void
-write_print_statistics (file)
- FILE *file;
+write_print_statistics (FILE *file)
{
- fprintf (stderr, "fixups: %d\n", n_fixups);
+ fprintf (file, "fixups: %d\n", n_fixups);
}
-/* for debugging */
+/* For debugging. */
extern int indent_level;
-extern void print_symbol_value_1 ();
void
-print_fixup (fixp)
- fixS *fixp;
+print_fixup (fixS *fixp)
{
indent_level = 1;
- fprintf (stderr, "fix %lx %s:%d", (long) fixp, fixp->fx_file, fixp->fx_line);
+ fprintf (stderr, "fix ");
+ fprintf_vma (stderr, (bfd_vma)((bfd_hostptr_t) fixp));
+ fprintf (stderr, " %s:%d",fixp->fx_file, fixp->fx_line);
if (fixp->fx_pcrel)
fprintf (stderr, " pcrel");
if (fixp->fx_pcrel_adjust)
fprintf (stderr, " tcbit");
if (fixp->fx_done)
fprintf (stderr, " done");
- fprintf (stderr, "\n size=%d frag=%lx where=%ld offset=%lx addnumber=%lx",
- fixp->fx_size, (long) fixp->fx_frag, (long) fixp->fx_where,
- (long) fixp->fx_offset, (long) fixp->fx_addnumber);
-#ifdef BFD_ASSEMBLER
+ fprintf (stderr, "\n size=%d frag=", fixp->fx_size);
+ fprintf_vma (stderr, (bfd_vma) ((bfd_hostptr_t) fixp->fx_frag));
+ fprintf (stderr, " where=%ld offset=%lx addnumber=%lx",
+ (long) fixp->fx_where,
+ (unsigned long) fixp->fx_offset,
+ (unsigned long) fixp->fx_addnumber);
fprintf (stderr, "\n %s (%d)", bfd_get_reloc_code_name (fixp->fx_r_type),
fixp->fx_r_type);
-#else
-#ifdef NEED_FX_R_TYPE
- fprintf (stderr, " r_type=%d", fixp->fx_r_type);
-#endif
-#endif
if (fixp->fx_addsy)
{
fprintf (stderr, "\n +<");
fprintf (stderr, ">");
}
fprintf (stderr, "\n");
+#ifdef TC_FIX_DATA_PRINT
+ TC_FIX_DATA_PRINT (stderr, fixp);
+#endif
}
-
-/* end of write.c */
projects / deliverable / binutils-gdb.git / blobdiff