/* coff object file format
- Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004, 2005
- Free Software Foundation, Inc.
+ Copyright (C) 1989-2014 Free Software Foundation, Inc.
This file is part of GAS.
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,
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. */
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
#define OBJ_HEADER "obj-coff.h"
#include "as.h"
+#include "safe-ctype.h"
#include "obstack.h"
#include "subsegs.h"
+#include "struc-symbol.h"
#ifdef TE_PE
#include "coff/pe.h"
#endif
+#ifdef OBJ_XCOFF
+#include "coff/xcoff.h"
+#endif
+
#define streq(a,b) (strcmp ((a), (b)) == 0)
#define strneq(a,b,n) (strncmp ((a), (b), (n)) == 0)
#define KEEP_RELOC_INFO
#endif
-/* The BFD_ASSEMBLER version of obj_coff_section will use this macro to set
- a new section's attributes when a directive has no valid flags or the
- "w" flag is used. This default should be appropriate for most. */
+/* obj_coff_section will use this macro to set a new section's
+ attributes when a directive has no valid flags or the "w" flag is
+ used. This default should be appropriate for most. */
#ifndef TC_COFF_SECTION_DEFAULT_ATTRIBUTES
#define TC_COFF_SECTION_DEFAULT_ATTRIBUTES (SEC_LOAD | SEC_DATA)
#endif
static const char weak_altprefix[] = ".weak.";
#endif /* TE_PE */
+#include "obj-coff-seh.c"
+
typedef struct
{
unsigned long chunk_size;
static symbolS *
tag_find (char *name)
{
-#ifdef STRIP_UNDERSCORE
- if (*name == '_')
- name++;
-#endif /* STRIP_UNDERSCORE */
return (symbolS *) hash_find (tag_hash, name);
}
0, &zero_address_frag);
tag_insert (S_GET_NAME (symbolP), symbolP);
-#ifdef BFD_ASSEMBLER
symbol_table_insert (symbolP);
-#endif
}
return symbolP;
s_lcomm (0);
}
-#ifdef BFD_ASSEMBLER
+#ifdef TE_PE
+/* Called from read.c:s_comm after we've parsed .comm symbol, size.
+ Parse a possible alignment value. */
+
+static symbolS *
+obj_coff_common_parse (int ignore ATTRIBUTE_UNUSED, symbolS *symbolP, addressT size)
+{
+ addressT align = 0;
+
+ if (*input_line_pointer == ',')
+ {
+ align = parse_align (0);
+ if (align == (addressT) -1)
+ return NULL;
+ }
+
+ S_SET_VALUE (symbolP, size);
+ S_SET_EXTERNAL (symbolP);
+ S_SET_SEGMENT (symbolP, bfd_com_section_ptr);
+
+ symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT;
+
+ /* There is no S_SET_ALIGN (symbolP, align) in COFF/PE.
+ Instead we must add a note to the .drectve section. */
+ if (align)
+ {
+ segT current_seg = now_seg;
+ subsegT current_subseg = now_subseg;
+ flagword oldflags;
+ asection *sec;
+ size_t pfxlen, numlen;
+ char *frag;
+ char numbuff[20];
+
+ sec = subseg_new (".drectve", 0);
+ oldflags = bfd_get_section_flags (stdoutput, sec);
+ if (oldflags == SEC_NO_FLAGS)
+ {
+ if (!bfd_set_section_flags (stdoutput, sec,
+ TC_COFF_SECTION_DEFAULT_ATTRIBUTES))
+ as_warn (_("error setting flags for \"%s\": %s"),
+ bfd_section_name (stdoutput, sec),
+ bfd_errmsg (bfd_get_error ()));
+ }
+
+ /* Emit a string. Note no NUL-termination. */
+ pfxlen = strlen (" -aligncomm:") + 2 + strlen (S_GET_NAME (symbolP)) + 1;
+ numlen = snprintf (numbuff, sizeof (numbuff), "%d", (int) align);
+ frag = frag_more (pfxlen + numlen);
+ (void) sprintf (frag, " -aligncomm:\"%s\",", S_GET_NAME (symbolP));
+ memcpy (frag + pfxlen, numbuff, numlen);
+ /* Restore original subseg. */
+ subseg_set (current_seg, current_subseg);
+ }
+
+ return symbolP;
+}
+
+static void
+obj_coff_comm (int ignore ATTRIBUTE_UNUSED)
+{
+ s_comm_internal (ignore, obj_coff_common_parse);
+}
+#endif /* TE_PE */
#define GET_FILENAME_STRING(X) \
((char *) (&((X)->sy_symbol.ost_auxent->x_file.x_n.x_offset))[1])
const asymbol *s;
s = bfd_make_debug_symbol (stdoutput, NULL, 0);
- assert (s != 0);
+ gas_assert (s != 0);
debug_section = s->section;
}
return debug_section;
SF_SET_LOCAL (symbolP);
}
+void
+coff_obj_symbol_clone_hook (symbolS *newsymP, symbolS *orgsymP)
+{
+ long sz = (OBJ_COFF_MAX_AUXENTRIES + 1) * sizeof (combined_entry_type);
+ combined_entry_type * s = xmalloc (sz);
+
+ memcpy (s, coffsymbol (symbol_get_bfdsym (orgsymP))->native, sz);
+ coffsymbol (symbol_get_bfdsym (newsymP))->native = s;
+
+ SF_SET (newsymP, SF_GET (orgsymP));
+}
+
\f
/* Handle .ln directives. */
subseg_new (".comment", 0);
#endif
- stringer (1);
+ stringer (8 + 1);
subseg_set (current_seg, current_subseg);
}
SKIP_WHITESPACES ();
symbol_name = input_line_pointer;
-#ifdef STRIP_UNDERSCORE
- if (symbol_name[0] == '_' && symbol_name[1] != 0)
- symbol_name++;
-#endif
-
name_end = get_symbol_end ();
symbol_name_length = strlen (symbol_name);
symbol_name_copy = xmalloc (symbol_name_length + 1);
demand_empty_rest_of_line ();
}
-unsigned int dim_index;
-
static void
obj_coff_endef (int ignore ATTRIBUTE_UNUSED)
{
symbolS *symbolP = NULL;
- dim_index = 0;
if (def_symbol_in_progress == NULL)
{
as_warn (_(".endef pseudo-op used outside of .def/.endef: ignored."));
&& !SF_GET_TAG (def_symbol_in_progress))
|| S_GET_SEGMENT (def_symbol_in_progress) == absolute_section
|| ! symbol_constant_p (def_symbol_in_progress)
- || (symbolP = symbol_find_base (S_GET_NAME (def_symbol_in_progress),
- DO_NOT_STRIP)) == NULL
+ || (symbolP = symbol_find (S_GET_NAME (def_symbol_in_progress))) == NULL
|| SF_GET_TAG (def_symbol_in_progress) != SF_GET_TAG (symbolP))
{
/* If it already is at the end of the symbol list, do nothing */
{
symbolS *oldtag;
- oldtag = symbol_find_base (S_GET_NAME (def_symbol_in_progress),
- DO_NOT_STRIP);
+ oldtag = symbol_find (S_GET_NAME (def_symbol_in_progress));
if (oldtag == NULL || ! SF_GET_TAG (oldtag))
tag_insert (S_GET_NAME (def_symbol_in_progress),
def_symbol_in_progress);
if (SF_GET_FUNCTION (def_symbol_in_progress))
{
- know (sizeof (def_symbol_in_progress) <= sizeof (long));
set_function (def_symbol_in_progress);
SF_SET_PROCESS (def_symbol_in_progress);
static void
obj_coff_dim (int ignore ATTRIBUTE_UNUSED)
{
- int dim_index;
+ int d_index;
if (def_symbol_in_progress == NULL)
{
S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
- for (dim_index = 0; dim_index < DIMNUM; dim_index++)
+ for (d_index = 0; d_index < DIMNUM; d_index++)
{
SKIP_WHITESPACES ();
- SA_SET_SYM_DIMEN (def_symbol_in_progress, dim_index,
+ SA_SET_SYM_DIMEN (def_symbol_in_progress, d_index,
get_absolute_expression ());
switch (*input_line_pointer)
/* Fall through. */
case '\n':
case ';':
- dim_index = DIMNUM;
+ d_index = DIMNUM;
break;
}
}
}
/* Return the name of the weak symbol corresponding to an
- alterate symbol. */
+ alternate symbol. */
static const char *
weak_altname2name (const char * name)
{
- char * weak_name;
- char * dot;
-
- assert (weak_is_altname (name));
-
- weak_name = xstrdup (name + 6);
- if ((dot = strchr (weak_name, '.')))
- *dot = 0;
- return weak_name;
+ gas_assert (weak_is_altname (name));
+ return xstrdup (name + 6);
}
/* Make a weak symbol name unique by
char *ret;
const char * unique = "";
-#ifdef USE_UNIQUE
+#ifdef TE_PE
if (an_external_name != NULL)
unique = an_external_name;
#endif
- assert (weak_is_altname (name));
-
- if (strchr (name + sizeof (weak_altprefix), '.'))
- return name;
+ gas_assert (weak_is_altname (name));
ret = xmalloc (strlen (name) + strlen (unique) + 2);
strcpy (ret, name);
return ret;
}
+void
+pecoff_obj_set_weak_hook (symbolS *symbolP)
+{
+ symbolS *alternateP;
+
+ /* See _Microsoft Portable Executable and Common Object
+ File Format Specification_, section 5.5.3.
+ Create a symbol representing the alternate value.
+ coff_frob_symbol will set the value of this symbol from
+ the value of the weak symbol itself. */
+ S_SET_STORAGE_CLASS (symbolP, C_NT_WEAK);
+ S_SET_NUMBER_AUXILIARY (symbolP, 1);
+ SA_SET_SYM_FSIZE (symbolP, IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY);
+
+ alternateP = symbol_find_or_make (weak_name2altname (S_GET_NAME (symbolP)));
+ S_SET_EXTERNAL (alternateP);
+ S_SET_STORAGE_CLASS (alternateP, C_NT_WEAK);
+
+ SA_SET_SYM_TAGNDX (symbolP, alternateP);
+}
+
+void
+pecoff_obj_clear_weak_hook (symbolS *symbolP)
+{
+ symbolS *alternateP;
+
+ S_SET_STORAGE_CLASS (symbolP, 0);
+ SA_SET_SYM_FSIZE (symbolP, 0);
+
+ alternateP = symbol_find (weak_name2altname (S_GET_NAME (symbolP)));
+ S_CLEAR_EXTERNAL (alternateP);
+}
+
#endif /* TE_PE */
/* Handle .weak. This is a GNU extension in formats other than PE. */
char *name;
int c;
symbolS *symbolP;
-#ifdef TE_PE
- symbolS *alternateP;
-#endif
do
{
symbolP = symbol_find_or_make (name);
*input_line_pointer = c;
SKIP_WHITESPACE ();
-
-#if defined BFD_ASSEMBLER || defined S_SET_WEAK
S_SET_WEAK (symbolP);
-#endif
-
-#ifdef TE_PE
- /* See _Microsoft Portable Executable and Common Object
- File Format Specification_, section 5.5.3.
- Create a symbol representing the alternate value.
- coff_frob_symbol will set the value of this symbol from
- the value of the weak symbol itself. */
- S_SET_STORAGE_CLASS (symbolP, C_NT_WEAK);
- S_SET_NUMBER_AUXILIARY (symbolP, 1);
- SA_SET_SYM_FSIZE (symbolP, IMAGE_WEAK_EXTERN_SEARCH_LIBRARY);
-
- alternateP = symbol_find_or_make (weak_name2altname (name));
- S_SET_EXTERNAL (alternateP);
- S_SET_STORAGE_CLASS (alternateP, C_NT_WEAK);
-
- SA_SET_SYM_TAGNDX (symbolP, alternateP);
-#endif
if (c == ',')
{
coff_obj_read_begin_hook (void)
{
/* These had better be the same. Usually 18 bytes. */
-#ifndef BFD_HEADERS
know (sizeof (SYMENT) == sizeof (AUXENT));
know (SYMESZ == AUXESZ);
-#endif
tag_init ();
}
{
/* This is a weak alternate symbol. All processing of
PECOFFweak symbols is done here, through the alternate. */
- symbolS *weakp = symbol_find (weak_altname2name (S_GET_NAME (symp)));
+ symbolS *weakp = symbol_find_noref (weak_altname2name
+ (S_GET_NAME (symp)), 1);
- assert (weakp);
- assert (S_GET_NUMBER_AUXILIARY (weakp) == 1);
+ gas_assert (weakp);
+ gas_assert (S_GET_NUMBER_AUXILIARY (weakp) == 1);
- if (symbol_equated_p (weakp))
+ if (! S_IS_WEAK (weakp))
+ {
+ /* The symbol was turned from weak to strong. Discard altname. */
+ *punt = 1;
+ return;
+ }
+ else if (symbol_equated_p (weakp))
{
/* The weak symbol has an alternate specified; symp is unneeded. */
S_SET_STORAGE_CLASS (weakp, C_NT_WEAK);
&& !SF_GET_STATICS (symp)
&& S_GET_STORAGE_CLASS (symp) != C_LABEL
&& symbol_constant_p (symp)
- && (real = symbol_find_base (S_GET_NAME (symp), DO_NOT_STRIP))
+ && (real = symbol_find_noref (S_GET_NAME (symp), 1))
&& S_GET_STORAGE_CLASS (real) == C_NULL
&& real != symp)
{
if (!S_IS_DEFINED (symp) && !SF_GET_LOCAL (symp))
{
- assert (S_GET_VALUE (symp) == 0);
- S_SET_EXTERNAL (symp);
+ gas_assert (S_GET_VALUE (symp) == 0);
+ if (S_IS_WEAKREFD (symp))
+ *punt = 1;
+ else
+ S_SET_EXTERNAL (symp);
}
else if (S_GET_STORAGE_CLASS (symp) == C_NULL)
{
}
}
- if (coff_last_function == 0 && SF_GET_FUNCTION (symp))
+ if (coff_last_function == 0 && SF_GET_FUNCTION (symp)
+ && S_IS_DEFINED (symp))
{
union internal_auxent *auxp;
sizeof (auxp->x_sym.x_fcnary.x_ary.x_dimen));
}
- if (S_GET_STORAGE_CLASS (symp) == C_EFCN)
+ if (S_GET_STORAGE_CLASS (symp) == C_EFCN
+ && S_IS_DEFINED (symp))
{
if (coff_last_function == 0)
as_fatal (_("C_EFCN symbol for %s out of scope"),
if (next_set_end != NULL)
{
if (set_end != NULL)
- as_warn ("Warning: internal error: forgetting to set endndx of %s",
+ as_warn (_("Warning: internal error: forgetting to set endndx of %s"),
S_GET_NAME (set_end));
set_end = next_set_end;
}
'o' for over
'w' for data
'd' (apparently m88k for data)
+ 'e' for exclude
'x' for text
'r' for read-only data
's' for shared data (PE)
+ 'y' for noread
+ '0' - '9' for power-of-two alignment (GNU extension).
But if the argument is not a quoted string, treat it as a
subsegment number.
/* Strip out the section name. */
char *section_name;
char c;
+ int alignment = -1;
char *name;
unsigned int exp;
flagword flags, oldflags;
exp = get_absolute_expression ();
else
{
- ++input_line_pointer;
- while (*input_line_pointer != '"'
- && ! is_end_of_line[(unsigned char) *input_line_pointer])
+ unsigned char attr;
+ int readonly_removed = 0;
+ int load_removed = 0;
+
+ while (attr = *++input_line_pointer,
+ attr != '"'
+ && ! is_end_of_line[attr])
{
- switch (*input_line_pointer)
+ if (ISDIGIT (attr))
{
- case 'b': flags |= SEC_ALLOC; flags &=~ SEC_LOAD; break;
- case 'n': flags &=~ SEC_LOAD; flags |= SEC_NEVER_LOAD; break;
+ alignment = attr - '0';
+ continue;
+ }
+ switch (attr)
+ {
+ case 'e':
+ /* Exclude section from linking. */
+ flags |= SEC_EXCLUDE;
+ break;
+
+ case 'b':
+ /* Uninitialised data section. */
+ flags |= SEC_ALLOC;
+ flags &=~ SEC_LOAD;
+ break;
+
+ case 'n':
+ /* Section not loaded. */
+ flags &=~ SEC_LOAD;
+ flags |= SEC_NEVER_LOAD;
+ load_removed = 1;
+ break;
+
+ case 's':
+ /* Shared section. */
+ flags |= SEC_COFF_SHARED;
+ /* Fall through. */
+ case 'd':
+ /* Data section. */
+ flags |= SEC_DATA;
+ if (! load_removed)
+ flags |= SEC_LOAD;
+ flags &=~ SEC_READONLY;
+ break;
+
+ case 'w':
+ /* Writable section. */
+ flags &=~ SEC_READONLY;
+ readonly_removed = 1;
+ break;
- case 's': flags |= SEC_COFF_SHARED; /* Fall through. */
- case 'd': flags |= SEC_DATA | SEC_LOAD; /* Fall through. */
- case 'w': flags &=~ SEC_READONLY; break;
+ case 'a':
+ /* Ignore. Here for compatibility with ELF. */
+ break;
+
+ case 'r': /* Read-only section. Implies a data section. */
+ readonly_removed = 0;
+ /* Fall through. */
+ case 'x': /* Executable section. */
+ /* If we are setting the 'x' attribute or if the 'r'
+ attribute is being used to restore the readonly status
+ of a code section (eg "wxr") then set the SEC_CODE flag,
+ otherwise set the SEC_DATA flag. */
+ flags |= (attr == 'x' || (flags & SEC_CODE) ? SEC_CODE : SEC_DATA);
+ if (! load_removed)
+ flags |= SEC_LOAD;
+ /* Note - the READONLY flag is set here, even for the 'x'
+ attribute in order to be compatible with the MSVC
+ linker. */
+ if (! readonly_removed)
+ flags |= SEC_READONLY;
+ break;
- case 'a': break; /* For compatibility with ELF. */
- case 'x': flags |= SEC_CODE | SEC_LOAD; break;
- case 'r': flags |= SEC_DATA | SEC_LOAD | SEC_READONLY; break;
+ case 'y':
+ flags |= SEC_COFF_NOREAD | SEC_READONLY;
+ break;
case 'i': /* STYP_INFO */
case 'l': /* STYP_LIB */
case 'o': /* STYP_OVER */
- as_warn (_("unsupported section attribute '%c'"),
- *input_line_pointer);
+ as_warn (_("unsupported section attribute '%c'"), attr);
break;
default:
- as_warn (_("unknown section attribute '%c'"),
- *input_line_pointer);
+ as_warn (_("unknown section attribute '%c'"), attr);
break;
}
- ++input_line_pointer;
}
- if (*input_line_pointer == '"')
+ if (attr == '"')
++input_line_pointer;
}
}
sec = subseg_new (name, (subsegT) exp);
+ if (alignment >= 0)
+ sec->alignment_power = alignment;
+
oldflags = bfd_get_section_flags (stdoutput, sec);
if (oldflags == SEC_NO_FLAGS)
{
/* This section's attributes have already been set. Warn if the
attributes don't match. */
flagword matchflags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE
- | SEC_DATA | SEC_COFF_SHARED | SEC_NEVER_LOAD);
+ | SEC_DATA | SEC_COFF_SHARED | SEC_NEVER_LOAD
+ | SEC_COFF_NOREAD);
if ((flags ^ oldflags) & matchflags)
as_warn (_("Ignoring changed section attributes for %s"), name);
}
segT strsec;
char *p;
fragS *fragp;
- bfd_vma size, n_entries, mask;
- bfd_vma align_power = (bfd_vma)sec->alignment_power + OCTETS_PER_BYTE_POWER;
+ bfd_vma n_entries;
/* The COFF back end in BFD requires that all section sizes be
rounded up to multiples of the corresponding section alignments,
supposedly because standard COFF has no other way of encoding alignment
for sections. If your COFF flavor has a different way of encoding
section alignment, then skip this step, as TICOFF does. */
- size = bfd_get_section_size (sec);
- mask = ((bfd_vma) 1 << align_power) - 1;
+ bfd_vma size = bfd_get_section_size (sec);
#if !defined(TICOFF)
+ bfd_vma align_power = (bfd_vma) sec->alignment_power + OCTETS_PER_BYTE_POWER;
+ bfd_vma mask = ((bfd_vma) 1 << align_power) - 1;
+
if (size & mask)
{
bfd_vma new_size;
#endif
{
symbolS *secsym = section_symbol (sec);
+ unsigned char sclass = C_STAT;
- S_SET_STORAGE_CLASS (secsym, C_STAT);
+#ifdef OBJ_XCOFF
+ if (bfd_get_section_flags (stdoutput, sec) & SEC_DEBUGGING)
+ sclass = C_DWARF;
+#endif
+ S_SET_STORAGE_CLASS (secsym, sclass);
S_SET_NUMBER_AUXILIARY (secsym, 1);
SF_SET_STATICS (secsym);
SA_SET_SCN_SCNLEN (secsym, size);
}
-
/* FIXME: These should be in a "stabs.h" file, or maybe as.h. */
#ifndef STAB_SECTION_NAME
#define STAB_SECTION_NAME ".stab"
fragp = seg_info (sec)->frchainP->frch_root;
while (fragp && fragp->fr_fix == 0)
fragp = fragp->fr_next;
- assert (fragp != 0 && fragp->fr_fix >= 12);
+ gas_assert (fragp != 0 && fragp->fr_fix >= 12);
/* Store the values. */
p = fragp->fr_literal;
}
#ifdef DEBUG
+const char * s_get_name (symbolS *);
+
const char *
s_get_name (symbolS *s)
{
return ((s == NULL) ? "(NULL)" : S_GET_NAME (s));
}
+void symbol_dump (void);
+
void
symbol_dump (void)
{
#endif /* DEBUG */
-#else /* not BFD_ASSEMBLER */
-
-#include "frags.h"
-/* This is needed because we include internal bfd things. */
-#include <time.h>
-
-#include "libbfd.h"
-#include "libcoff.h"
-
-/* The NOP_OPCODE is for the alignment fill value. Fill with nop so
- that we can stick sections together without causing trouble. */
-#ifndef NOP_OPCODE
-#define NOP_OPCODE 0x00
-#endif
-
-/* The zeroes if symbol name is longer than 8 chars */
-#define S_SET_ZEROES(s,v) ((s)->sy_symbol.ost_entry.n_zeroes = (v))
-
-#define MIN(a,b) ((a) < (b)? (a) : (b))
-
-/* This vector is used to turn a gas internal segment number into a
- section number suitable for insertion into a coff symbol table.
- This must correspond to seg_info_off_by_4. */
-
-const short seg_N_TYPE[] =
-{ /* in: segT out: N_TYPE bits */
- C_ABS_SECTION,
- 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
- 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
- 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
- 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
- C_UNDEF_SECTION, /* SEG_UNKNOWN */
- C_UNDEF_SECTION, /* SEG_GOOF */
- C_UNDEF_SECTION, /* SEG_EXPR */
- C_DEBUG_SECTION, /* SEG_DEBUG */
- C_NTV_SECTION, /* SEG_NTV */
- C_PTV_SECTION, /* SEG_PTV */
- C_REGISTER_SECTION, /* SEG_REGISTER */
-};
-
-int function_lineoff = -1; /* Offset in line#s where the last function
- started (the odd entry for line #0) */
-
-/* Structure used to keep the filenames which
- are too long around so that we can stick them
- into the string table. */
-struct filename_list
-{
- const char *filename;
- struct filename_list *next;
-};
-
-static struct filename_list *filename_list_head;
-static struct filename_list *filename_list_tail;
-
-static symbolS *last_line_symbol;
-
-/* Add 4 to the real value to get the index and compensate the
- negatives. This vector is used by S_GET_SEGMENT to turn a coff
- section number into a segment number. */
-
-bfd *abfd;
-static symbolS *previous_file_symbol;
-static int line_base;
-
-/* When not using BFD_ASSEMBLER, we permit up to 40 sections.
-
- This array maps a COFF section number into a gas section number.
- Because COFF uses negative section numbers, you must add 4 to the
- COFF section number when indexing into this array; this is done via
- the SEG_INFO_FROM_SECTION_NUMBER macro. This must correspond to
- seg_N_TYPE. */
-
-static const segT seg_info_off_by_4[] =
-{
- SEG_PTV,
- SEG_NTV,
- SEG_DEBUG,
- SEG_ABSOLUTE,
- SEG_UNKNOWN,
- SEG_E0, SEG_E1, SEG_E2, SEG_E3, SEG_E4,
- SEG_E5, SEG_E6, SEG_E7, SEG_E8, SEG_E9,
- SEG_E10, SEG_E11, SEG_E12, SEG_E13, SEG_E14,
- SEG_E15, SEG_E16, SEG_E17, SEG_E18, SEG_E19,
- SEG_E20, SEG_E21, SEG_E22, SEG_E23, SEG_E24,
- SEG_E25, SEG_E26, SEG_E27, SEG_E28, SEG_E29,
- SEG_E30, SEG_E31, SEG_E32, SEG_E33, SEG_E34,
- SEG_E35, SEG_E36, SEG_E37, SEG_E38, SEG_E39,
- (segT) 40,
- (segT) 41,
- (segT) 42,
- (segT) 43,
- (segT) 44,
- (segT) 45,
- (segT) 0,
- (segT) 0,
- (segT) 0,
- SEG_REGISTER
-};
-
-#define SEG_INFO_FROM_SECTION_NUMBER(x) (seg_info_off_by_4[(x)+4])
-
-static relax_addressT
-relax_align (relax_addressT address, long alignment)
-{
- relax_addressT mask;
- relax_addressT new_address;
-
- mask = ~((~0) << alignment);
- new_address = (address + mask) & (~mask);
-
- return new_address - address;
-}
-
-segT
-s_get_segment (symbolS * x)
-{
- return SEG_INFO_FROM_SECTION_NUMBER (x->sy_symbol.ost_entry.n_scnum);
-}
-
-/* Calculate the size of the frag chain and fill in the section header
- to contain all of it, also fill in the addr of the sections. */
-
-static unsigned int
-size_section (bfd *abfd ATTRIBUTE_UNUSED, unsigned int idx)
+const pseudo_typeS coff_pseudo_table[] =
{
- unsigned int size = 0;
- fragS *frag = segment_info[idx].frchainP->frch_root;
-
- while (frag)
- {
- size = frag->fr_address;
- if (frag->fr_address != size)
- {
- fprintf (stderr, _("Out of step\n"));
- size = frag->fr_address;
- }
-
- switch (frag->fr_type)
- {
-#ifdef TC_COFF_SIZEMACHDEP
- case rs_machine_dependent:
- size += TC_COFF_SIZEMACHDEP (frag);
- break;
+ {"ABORT", s_abort, 0},
+ {"appline", obj_coff_ln, 1},
+ /* We accept the .bss directive for backward compatibility with
+ earlier versions of gas. */
+ {"bss", obj_coff_bss, 0},
+#ifdef TE_PE
+ /* PE provides an enhanced version of .comm with alignment. */
+ {"comm", obj_coff_comm, 0},
+#endif /* TE_PE */
+ {"def", obj_coff_def, 0},
+ {"dim", obj_coff_dim, 0},
+ {"endef", obj_coff_endef, 0},
+ {"ident", obj_coff_ident, 0},
+ {"line", obj_coff_line, 0},
+ {"ln", obj_coff_ln, 0},
+ {"scl", obj_coff_scl, 0},
+ {"sect", obj_coff_section, 0},
+ {"sect.s", obj_coff_section, 0},
+ {"section", obj_coff_section, 0},
+ {"section.s", obj_coff_section, 0},
+ /* FIXME: We ignore the MRI short attribute. */
+ {"size", obj_coff_size, 0},
+ {"tag", obj_coff_tag, 0},
+ {"type", obj_coff_type, 0},
+ {"val", obj_coff_val, 0},
+ {"version", s_ignore, 0},
+ {"loc", obj_coff_loc, 0},
+ {"optim", s_ignore, 0}, /* For sun386i cc (?) */
+ {"weak", obj_coff_weak, 0},
+#if defined TC_TIC4X
+ /* The tic4x uses sdef instead of def. */
+ {"sdef", obj_coff_def, 0},
#endif
- case rs_space:
- case rs_fill:
- case rs_org:
- size += frag->fr_fix;
- size += frag->fr_offset * frag->fr_var;
- break;
- case rs_align:
- case rs_align_code:
- case rs_align_test:
- {
- addressT off;
-
- size += frag->fr_fix;
- off = relax_align (size, frag->fr_offset);
- if (frag->fr_subtype != 0 && off > frag->fr_subtype)
- off = 0;
- size += off;
- }
- break;
- default:
- BAD_CASE (frag->fr_type);
- break;
- }
- frag = frag->fr_next;
- }
- segment_info[idx].scnhdr.s_size = size;
- return size;
-}
-
-static unsigned int
-count_entries_in_chain (unsigned int idx)
-{
- unsigned int nrelocs;
- fixS *fixup_ptr;
-
- /* Count the relocations. */
- fixup_ptr = segment_info[idx].fix_root;
- nrelocs = 0;
- while (fixup_ptr != (fixS *) NULL)
- {
- if (fixup_ptr->fx_done == 0 && TC_COUNT_RELOC (fixup_ptr))
- {
-#if defined(TC_A29K) || defined(TC_OR32)
- if (fixup_ptr->fx_r_type == RELOC_CONSTH)
- nrelocs += 2;
- else
- nrelocs++;
-#else
- nrelocs++;
+#if defined(SEH_CMDS)
+ SEH_CMDS
#endif
- }
-
- fixup_ptr = fixup_ptr->fx_next;
- }
- return nrelocs;
-}
-
-#ifdef TE_AUX
+ {NULL, NULL, 0}
+};
+\f
-/* AUX's ld expects relocations to be sorted. */
+/* Support for a COFF emulation. */
-static int
-compare_external_relocs (const void * x, const void * y)
+static void
+coff_pop_insert (void)
{
- struct external_reloc *a = (struct external_reloc *) x;
- struct external_reloc *b = (struct external_reloc *) y;
- bfd_vma aadr = bfd_getb32 (a->r_vaddr);
- bfd_vma badr = bfd_getb32 (b->r_vaddr);
-
- return (aadr < badr ? -1 : badr < aadr ? 1 : 0);
+ pop_insert (coff_pseudo_table);
}
-#endif
-
-/* Output all the relocations for a section. */
-
-static void
-do_relocs_for (bfd * abfd, object_headers * h, unsigned long *file_cursor)
+static int
+coff_separate_stab_sections (void)
{
- unsigned int nrelocs;
- unsigned int idx;
- unsigned long reloc_start = *file_cursor;
-
- for (idx = SEG_E0; idx < SEG_LAST; idx++)
- {
- if (segment_info[idx].scnhdr.s_name[0])
- {
- struct external_reloc *ext_ptr;
- struct external_reloc *external_reloc_vec;
- unsigned int external_reloc_size;
- unsigned int base = segment_info[idx].scnhdr.s_paddr;
- fixS *fix_ptr = segment_info[idx].fix_root;
-
- nrelocs = count_entries_in_chain (idx);
-
- if (nrelocs)
- /* Bypass this stuff if no relocs. This also incidentally
- avoids a SCO bug, where free(malloc(0)) tends to crash. */
- {
- external_reloc_size = nrelocs * RELSZ;
- external_reloc_vec = malloc (external_reloc_size);
-
- ext_ptr = external_reloc_vec;
-
- /* Fill in the internal coff style reloc struct from the
- internal fix list. */
- while (fix_ptr)
- {
- struct internal_reloc intr;
-
- /* Only output some of the relocations. */
- if (fix_ptr->fx_done == 0 && TC_COUNT_RELOC (fix_ptr))
- {
-#ifdef TC_RELOC_MANGLE
- TC_RELOC_MANGLE (&segment_info[idx], fix_ptr, &intr,
- base);
-#else
- symbolS *dot;
- symbolS *symbol_ptr = fix_ptr->fx_addsy;
-
- intr.r_type = TC_COFF_FIX2RTYPE (fix_ptr);
- intr.r_vaddr =
- base + fix_ptr->fx_frag->fr_address + fix_ptr->fx_where;
-
-#ifdef TC_KEEP_FX_OFFSET
- intr.r_offset = fix_ptr->fx_offset;
-#else
- intr.r_offset = 0;
-#endif
-
- while (symbol_ptr->sy_value.X_op == O_symbol
- && (! S_IS_DEFINED (symbol_ptr)
- || S_IS_COMMON (symbol_ptr)))
- {
- symbolS *n;
-
- /* We must avoid looping, as that can occur
- with a badly written program. */
- n = symbol_ptr->sy_value.X_add_symbol;
- if (n == symbol_ptr)
- break;
- symbol_ptr = n;
- }
-
- /* Turn the segment of the symbol into an offset. */
- if (symbol_ptr)
- {
- resolve_symbol_value (symbol_ptr);
- if (! symbol_ptr->sy_resolved)
- {
- char *file;
- unsigned int line;
-
- if (expr_symbol_where (symbol_ptr, &file, &line))
- as_bad_where (file, line,
- _("unresolved relocation"));
- else
- as_bad (_("bad relocation: symbol `%s' not in symbol table"),
- S_GET_NAME (symbol_ptr));
- }
-
- dot = segment_info[S_GET_SEGMENT (symbol_ptr)].dot;
- if (dot)
- intr.r_symndx = dot->sy_number;
- else
- intr.r_symndx = symbol_ptr->sy_number;
- }
- else
- intr.r_symndx = -1;
-#endif
- (void) bfd_coff_swap_reloc_out (abfd, &intr, ext_ptr);
- ext_ptr++;
-#if defined(TC_A29K)
- /* The 29k has a special kludge for the high 16 bit
- reloc. Two relocations are emitted, R_IHIHALF,
- and R_IHCONST. The second one doesn't contain a
- symbol, but uses the value for offset. */
- if (intr.r_type == R_IHIHALF)
- {
- /* Now emit the second bit. */
- intr.r_type = R_IHCONST;
- intr.r_symndx = fix_ptr->fx_addnumber;
- (void) bfd_coff_swap_reloc_out (abfd, &intr, ext_ptr);
- ext_ptr++;
- }
-#endif
-#if defined(TC_OR32)
- /* The or32 has a special kludge for the high 16 bit
- reloc. Two relocations are emitted, R_IHIHALF,
- and R_IHCONST. The second one doesn't contain a
- symbol, but uses the value for offset. */
- if (intr.r_type == R_IHIHALF)
- {
- /* Now emit the second bit. */
- intr.r_type = R_IHCONST;
- intr.r_symndx = fix_ptr->fx_addnumber;
- (void) bfd_coff_swap_reloc_out (abfd, & intr, ext_ptr);
- ext_ptr ++;
- }
-#endif
- }
-
- fix_ptr = fix_ptr->fx_next;
- }
-#ifdef TE_AUX
- /* Sort the reloc table. */
- qsort ((void *) external_reloc_vec, nrelocs,
- sizeof (struct external_reloc), compare_external_relocs);
-#endif
- /* Write out the reloc table. */
- bfd_bwrite ((void *) external_reloc_vec,
- (bfd_size_type) external_reloc_size, abfd);
- free (external_reloc_vec);
-
- /* Fill in section header info. */
- segment_info[idx].scnhdr.s_relptr = *file_cursor;
- *file_cursor += external_reloc_size;
- segment_info[idx].scnhdr.s_nreloc = nrelocs;
- }
- else
- {
- /* No relocs. */
- segment_info[idx].scnhdr.s_relptr = 0;
- }
- }
- }
-
- /* Set relocation_size field in file headers. */
- H_SET_RELOCATION_SIZE (h, *file_cursor - reloc_start, 0);
+ return 1;
}
-/* Run through a frag chain and write out the data to go with it, fill
- in the scnhdrs with the info on the file positions. */
-
-static void
-fill_section (bfd * abfd,
- object_headers *h ATTRIBUTE_UNUSED,
- unsigned long *file_cursor)
-{
- unsigned int i;
- unsigned int paddr = 0;
-
- for (i = SEG_E0; i < SEG_UNKNOWN; i++)
- {
- unsigned int offset = 0;
- struct internal_scnhdr *s = &(segment_info[i].scnhdr);
-
- PROGRESS (1);
-
- if (s->s_name[0])
- {
- fragS *frag = segment_info[i].frchainP->frch_root;
- char *buffer = NULL;
-
- if (s->s_size == 0)
- s->s_scnptr = 0;
- else
- {
- buffer = xmalloc (s->s_size);
- s->s_scnptr = *file_cursor;
- }
- know (s->s_paddr == paddr);
-
- if (streq (s->s_name, ".text"))
- s->s_flags |= STYP_TEXT;
- else if (streq (s->s_name, ".data"))
- s->s_flags |= STYP_DATA;
- else if (streq (s->s_name, ".bss"))
- {
- s->s_scnptr = 0;
- s->s_flags |= STYP_BSS;
-
- /* @@ Should make the i386 and a29k coff targets define
- COFF_NOLOAD_PROBLEM, and have only one test here. */
-#ifndef TC_I386
-#ifndef TC_A29K
-#ifndef TC_OR32
-#ifndef COFF_NOLOAD_PROBLEM
- /* Apparently the SVR3 linker (and exec syscall) and UDI
- mondfe progrem are confused by noload sections. */
- s->s_flags |= STYP_NOLOAD;
-#endif
-#endif
-#endif
-#endif
- }
- else if (streq (s->s_name, ".lit"))
- s->s_flags = STYP_LIT | STYP_TEXT;
- else if (streq (s->s_name, ".init"))
- s->s_flags |= STYP_TEXT;
- else if (streq (s->s_name, ".fini"))
- s->s_flags |= STYP_TEXT;
- else if (strneq (s->s_name, ".comment", 8))
- s->s_flags |= STYP_INFO;
-
- while (frag)
- {
- unsigned int fill_size;
-
- switch (frag->fr_type)
- {
- case rs_machine_dependent:
- if (frag->fr_fix)
- {
- memcpy (buffer + frag->fr_address,
- frag->fr_literal,
- (unsigned int) frag->fr_fix);
- offset += frag->fr_fix;
- }
-
- break;
- case rs_space:
- case rs_fill:
- case rs_align:
- case rs_align_code:
- case rs_align_test:
- case rs_org:
- if (frag->fr_fix)
- {
- memcpy (buffer + frag->fr_address,
- frag->fr_literal,
- (unsigned int) frag->fr_fix);
- offset += frag->fr_fix;
- }
-
- fill_size = frag->fr_var;
- if (fill_size && frag->fr_offset > 0)
- {
- unsigned int count;
- unsigned int off = frag->fr_fix;
-
- for (count = frag->fr_offset; count; count--)
- {
- if (fill_size + frag->fr_address + off <= s->s_size)
- {
- memcpy (buffer + frag->fr_address + off,
- frag->fr_literal + frag->fr_fix,
- fill_size);
- off += fill_size;
- offset += fill_size;
- }
- }
- }
- break;
- case rs_broken_word:
- break;
- default:
- abort ();
- }
- frag = frag->fr_next;
- }
-
- if (s->s_size != 0)
- {
- if (s->s_scnptr != 0)
- {
- bfd_bwrite (buffer, s->s_size, abfd);
- *file_cursor += s->s_size;
- }
- free (buffer);
- }
- paddr += s->s_size;
- }
- }
-}
-
-/* Coff file generation & utilities. */
-
-static void
-coff_header_append (bfd * abfd, object_headers * h)
-{
- unsigned int i;
- char buffer[1000];
- char buffero[1000];
-#ifdef COFF_LONG_SECTION_NAMES
- unsigned long string_size = 4;
-#endif
-
- bfd_seek (abfd, 0, 0);
-
-#ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER
- H_SET_MAGIC_NUMBER (h, COFF_MAGIC);
- H_SET_VERSION_STAMP (h, 0);
- H_SET_ENTRY_POINT (h, 0);
- H_SET_TEXT_START (h, segment_info[SEG_E0].frchainP->frch_root->fr_address);
- H_SET_DATA_START (h, segment_info[SEG_E1].frchainP->frch_root->fr_address);
- H_SET_SIZEOF_OPTIONAL_HEADER (h, bfd_coff_swap_aouthdr_out (abfd, &h->aouthdr,
- buffero));
-#else /* defined (OBJ_COFF_OMIT_OPTIONAL_HEADER) */
- H_SET_SIZEOF_OPTIONAL_HEADER (h, 0);
-#endif /* defined (OBJ_COFF_OMIT_OPTIONAL_HEADER) */
-
- i = bfd_coff_swap_filehdr_out (abfd, &h->filehdr, buffer);
-
- bfd_bwrite (buffer, (bfd_size_type) i, abfd);
- bfd_bwrite (buffero, (bfd_size_type) H_GET_SIZEOF_OPTIONAL_HEADER (h), abfd);
-
- for (i = SEG_E0; i < SEG_LAST; i++)
- {
- if (segment_info[i].scnhdr.s_name[0])
- {
- unsigned int size;
-
-#ifdef COFF_LONG_SECTION_NAMES
- /* Support long section names as found in PE. This code
- must coordinate with that in write_object_file and
- w_strings. */
- if (strlen (segment_info[i].name) > SCNNMLEN)
- {
- memset (segment_info[i].scnhdr.s_name, 0, SCNNMLEN);
- sprintf (segment_info[i].scnhdr.s_name, "/%lu", string_size);
- string_size += strlen (segment_info[i].name) + 1;
- }
-#endif
- size = bfd_coff_swap_scnhdr_out (abfd,
- &(segment_info[i].scnhdr),
- buffer);
- if (size == 0)
- as_bad (_("bfd_coff_swap_scnhdr_out failed"));
- bfd_bwrite (buffer, (bfd_size_type) size, abfd);
- }
- }
-}
-
-static char *
-symbol_to_chars (bfd * abfd, char * where, symbolS * symbolP)
-{
- unsigned int numaux = symbolP->sy_symbol.ost_entry.n_numaux;
- unsigned int i;
- valueT val;
-
- /* Turn any symbols with register attributes into abs symbols. */
- if (S_GET_SEGMENT (symbolP) == reg_section)
- S_SET_SEGMENT (symbolP, absolute_section);
-
- /* At the same time, relocate all symbols to their output value. */
-#ifndef TE_PE
- val = (segment_info[S_GET_SEGMENT (symbolP)].scnhdr.s_paddr
- + S_GET_VALUE (symbolP));
-#else
- val = S_GET_VALUE (symbolP);
-#endif
-
- S_SET_VALUE (symbolP, val);
-
- symbolP->sy_symbol.ost_entry.n_value = val;
-
- where += bfd_coff_swap_sym_out (abfd, &symbolP->sy_symbol.ost_entry,
- where);
-
- for (i = 0; i < numaux; i++)
- {
- where += bfd_coff_swap_aux_out (abfd,
- &symbolP->sy_symbol.ost_auxent[i],
- S_GET_DATA_TYPE (symbolP),
- S_GET_STORAGE_CLASS (symbolP),
- i, numaux, where);
- }
-
- return where;
-}
-
-void
-coff_obj_symbol_new_hook (symbolS *symbolP)
-{
- char underscore = 0; /* Symbol has leading _ */
-
- /* Effective symbol. */
- /* Store the pointer in the offset. */
- S_SET_ZEROES (symbolP, 0L);
- S_SET_DATA_TYPE (symbolP, T_NULL);
- S_SET_STORAGE_CLASS (symbolP, 0);
- S_SET_NUMBER_AUXILIARY (symbolP, 0);
- /* Additional information. */
- symbolP->sy_symbol.ost_flags = 0;
- /* Auxiliary entries. */
- memset ((char *) &symbolP->sy_symbol.ost_auxent[0], 0, AUXESZ);
-
- if (S_IS_STRING (symbolP))
- SF_SET_STRING (symbolP);
- if (!underscore && S_IS_LOCAL (symbolP))
- SF_SET_LOCAL (symbolP);
-}
-
-static int
-c_line_new (symbolS * symbol, long paddr, int line_number, fragS * frag)
-{
- struct lineno_list *new_line = xmalloc (sizeof (* new_line));
-
- segment_info_type *s = segment_info + now_seg;
- new_line->line.l_lnno = line_number;
-
- if (line_number == 0)
- {
- last_line_symbol = symbol;
- new_line->line.l_addr.l_symndx = (long) symbol;
- }
- else
- {
- new_line->line.l_addr.l_paddr = paddr;
- }
-
- new_line->frag = (char *) frag;
- new_line->next = NULL;
-
- if (s->lineno_list_head == NULL)
- s->lineno_list_head = new_line;
- else
- s->lineno_list_tail->next = new_line;
-
- s->lineno_list_tail = new_line;
- return LINESZ * s->scnhdr.s_nlnno++;
-}
-
-/* Handle .ln directives. */
-
-static void
-obj_coff_ln (int appline)
-{
- int l;
-
- if (! appline && def_symbol_in_progress != NULL)
- {
- /* Wrong context. */
- as_warn (_(".ln pseudo-op inside .def/.endef: ignored."));
- demand_empty_rest_of_line ();
- return;
- }
-
- l = get_absolute_expression ();
- c_line_new (0, frag_now_fix (), l, frag_now);
-
- if (appline)
- new_logical_line ((char *) NULL, l - 1);
-
-#ifndef NO_LISTING
- {
- extern int listing;
-
- if (listing)
- {
- if (! appline)
- l += line_base - 1;
- listing_source_line ((unsigned int) l);
- }
- }
-#endif
- demand_empty_rest_of_line ();
-}
-
-/* Handle .def directives.
-
- One might ask : why can't we symbol_new if the symbol does not
- already exist and fill it with debug information. Because of
- the C_EFCN special symbol. It would clobber the value of the
- function symbol before we have a chance to notice that it is
- a C_EFCN. And a second reason is that the code is more clear this
- way. (at least I think it is :-). */
-
-#define SKIP_SEMI_COLON() while (*input_line_pointer++ != ';')
-#define SKIP_WHITESPACES() while (*input_line_pointer == ' ' || \
- *input_line_pointer == '\t') \
- input_line_pointer++;
-
-static void
-obj_coff_def (int what ATTRIBUTE_UNUSED)
-{
- char name_end; /* Char after the end of name. */
- char *symbol_name; /* Name of the debug symbol. */
- char *symbol_name_copy; /* Temporary copy of the name. */
- unsigned int symbol_name_length;
-
- if (def_symbol_in_progress != NULL)
- {
- as_warn (_(".def pseudo-op used inside of .def/.endef: ignored."));
- demand_empty_rest_of_line ();
- return;
- }
-
- SKIP_WHITESPACES ();
-
- def_symbol_in_progress = obstack_alloc (¬es, sizeof (*def_symbol_in_progress));
- memset (def_symbol_in_progress, 0, sizeof (*def_symbol_in_progress));
-
- symbol_name = input_line_pointer;
- name_end = get_symbol_end ();
- symbol_name_length = strlen (symbol_name);
- symbol_name_copy = xmalloc (symbol_name_length + 1);
- strcpy (symbol_name_copy, symbol_name);
-#ifdef tc_canonicalize_symbol_name
- symbol_name_copy = tc_canonicalize_symbol_name (symbol_name_copy);
-#endif
-
- /* Initialize the new symbol. */
-#ifdef STRIP_UNDERSCORE
- S_SET_NAME (def_symbol_in_progress, (*symbol_name_copy == '_'
- ? symbol_name_copy + 1
- : symbol_name_copy));
-#else /* STRIP_UNDERSCORE */
- S_SET_NAME (def_symbol_in_progress, symbol_name_copy);
-#endif /* STRIP_UNDERSCORE */
- /* free(symbol_name_copy); */
- def_symbol_in_progress->sy_name_offset = (unsigned long) ~0;
- def_symbol_in_progress->sy_number = ~0;
- def_symbol_in_progress->sy_frag = &zero_address_frag;
- S_SET_VALUE (def_symbol_in_progress, 0);
-
- if (S_IS_STRING (def_symbol_in_progress))
- SF_SET_STRING (def_symbol_in_progress);
-
- *input_line_pointer = name_end;
-
- demand_empty_rest_of_line ();
-}
-
-static void
-c_symbol_merge (symbolS *debug, symbolS *normal)
-{
- S_SET_DATA_TYPE (normal, S_GET_DATA_TYPE (debug));
- S_SET_STORAGE_CLASS (normal, S_GET_STORAGE_CLASS (debug));
-
- if (S_GET_NUMBER_AUXILIARY (debug) > S_GET_NUMBER_AUXILIARY (normal))
- S_SET_NUMBER_AUXILIARY (normal, S_GET_NUMBER_AUXILIARY (debug));
-
- if (S_GET_NUMBER_AUXILIARY (debug) > 0)
- memcpy ((char *) &normal->sy_symbol.ost_auxent[0],
- (char *) &debug->sy_symbol.ost_auxent[0],
- (unsigned int) (S_GET_NUMBER_AUXILIARY (debug) * AUXESZ));
-
- /* Move the debug flags. */
- SF_SET_DEBUG_FIELD (normal, SF_GET_DEBUG_FIELD (debug));
-}
-
-unsigned int dim_index;
-
-static void
-obj_coff_endef (int ignore ATTRIBUTE_UNUSED)
-{
- symbolS *symbolP = 0;
-
- dim_index = 0;
- if (def_symbol_in_progress == NULL)
- {
- as_warn (_(".endef pseudo-op used outside of .def/.endef: ignored."));
- demand_empty_rest_of_line ();
- return;
- }
-
- /* Set the section number according to storage class. */
- switch (S_GET_STORAGE_CLASS (def_symbol_in_progress))
- {
- case C_STRTAG:
- case C_ENTAG:
- case C_UNTAG:
- SF_SET_TAG (def_symbol_in_progress);
- /* Fall through. */
-
- case C_FILE:
- case C_TPDEF:
- SF_SET_DEBUG (def_symbol_in_progress);
- S_SET_SEGMENT (def_symbol_in_progress, SEG_DEBUG);
- break;
-
- case C_EFCN:
- /* Do not emit this symbol. */
- SF_SET_LOCAL (def_symbol_in_progress);
- /* Fall through. */
-
- case C_BLOCK:
- /* Will need processing before writing. */
- SF_SET_PROCESS (def_symbol_in_progress);
- /* Fall through. */
-
- case C_FCN:
- S_SET_SEGMENT (def_symbol_in_progress, SEG_E0);
-
- if (streq (S_GET_NAME (def_symbol_in_progress), ".bf"))
- {
- if (function_lineoff < 0)
- fprintf (stderr, _("`.bf' symbol without preceding function\n"));
-
- SA_GET_SYM_LNNOPTR (last_line_symbol) = function_lineoff;
-
- SF_SET_PROCESS (last_line_symbol);
- SF_SET_ADJ_LNNOPTR (last_line_symbol);
- SF_SET_PROCESS (def_symbol_in_progress);
- function_lineoff = -1;
- }
-
- /* Value is always set to . */
- def_symbol_in_progress->sy_frag = frag_now;
- S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ());
- break;
-
-#ifdef C_AUTOARG
- case C_AUTOARG:
-#endif /* C_AUTOARG */
- case C_AUTO:
- case C_REG:
- case C_MOS:
- case C_MOE:
- case C_MOU:
- case C_ARG:
- case C_REGPARM:
- case C_FIELD:
- case C_EOS:
- SF_SET_DEBUG (def_symbol_in_progress);
- S_SET_SEGMENT (def_symbol_in_progress, absolute_section);
- break;
-
- case C_EXT:
- case C_WEAKEXT:
-#ifdef TE_PE
- case C_NT_WEAK:
-#endif
- case C_STAT:
- case C_LABEL:
- /* Valid but set somewhere else (s_comm, s_lcomm, colon). */
- break;
-
- case C_USTATIC:
- case C_EXTDEF:
- case C_ULABEL:
- as_warn (_("unexpected storage class %d"), S_GET_STORAGE_CLASS (def_symbol_in_progress));
- break;
- }
-
- /* Now that we have built a debug symbol, try to find if we should
- merge with an existing symbol or not. If a symbol is C_EFCN or
- absolute_section or untagged SEG_DEBUG it never merges. We also
- don't merge labels, which are in a different namespace, nor
- symbols which have not yet been defined since they are typically
- unique, nor do we merge tags with non-tags. */
-
- /* Two cases for functions. Either debug followed by definition or
- definition followed by debug. For definition first, we will
- merge the debug symbol into the definition. For debug first, the
- lineno entry MUST point to the definition function or else it
- will point off into space when crawl_symbols() merges the debug
- symbol into the real symbol. Therefor, let's presume the debug
- symbol is a real function reference. */
-
- /* FIXME-SOON If for some reason the definition label/symbol is
- never seen, this will probably leave an undefined symbol at link
- time. */
-
- if (S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_EFCN
- || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_LABEL
- || (S_GET_SEGMENT (def_symbol_in_progress) == SEG_DEBUG
- && !SF_GET_TAG (def_symbol_in_progress))
- || S_GET_SEGMENT (def_symbol_in_progress) == absolute_section
- || def_symbol_in_progress->sy_value.X_op != O_constant
- || (symbolP = symbol_find_base (S_GET_NAME (def_symbol_in_progress), DO_NOT_STRIP)) == NULL
- || (SF_GET_TAG (def_symbol_in_progress) != SF_GET_TAG (symbolP)))
- {
- symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP,
- &symbol_lastP);
- }
- else
- {
- /* This symbol already exists, merge the newly created symbol
- into the old one. This is not mandatory. The linker can
- handle duplicate symbols correctly. But I guess that it save
- a *lot* of space if the assembly file defines a lot of
- symbols. [loic] */
-
- /* The debug entry (def_symbol_in_progress) is merged into the
- previous definition. */
-
- c_symbol_merge (def_symbol_in_progress, symbolP);
- /* FIXME-SOON Should *def_symbol_in_progress be free'd? xoxorich. */
- def_symbol_in_progress = symbolP;
-
- if (SF_GET_FUNCTION (def_symbol_in_progress)
- || SF_GET_TAG (def_symbol_in_progress)
- || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_STAT)
- {
- /* For functions, and tags, and static symbols, the symbol
- *must* be where the debug symbol appears. Move the
- existing symbol to the current place. */
- /* If it already is at the end of the symbol list, do nothing. */
- if (def_symbol_in_progress != symbol_lastP)
- {
- symbol_remove (def_symbol_in_progress, &symbol_rootP,
- &symbol_lastP);
- symbol_append (def_symbol_in_progress, symbol_lastP,
- &symbol_rootP, &symbol_lastP);
- }
- }
- }
-
- if (SF_GET_TAG (def_symbol_in_progress))
- {
- symbolS *oldtag;
-
- oldtag = symbol_find_base (S_GET_NAME (def_symbol_in_progress),
- DO_NOT_STRIP);
- if (oldtag == NULL || ! SF_GET_TAG (oldtag))
- tag_insert (S_GET_NAME (def_symbol_in_progress),
- def_symbol_in_progress);
- }
-
- if (SF_GET_FUNCTION (def_symbol_in_progress))
- {
- know (sizeof (def_symbol_in_progress) <= sizeof (long));
- function_lineoff
- = c_line_new (def_symbol_in_progress, 0, 0, &zero_address_frag);
-
- SF_SET_PROCESS (def_symbol_in_progress);
-
- if (symbolP == NULL)
- /* That is, if this is the first time we've seen the function. */
- symbol_table_insert (def_symbol_in_progress);
- }
-
- def_symbol_in_progress = NULL;
- demand_empty_rest_of_line ();
-}
-
-static void
-obj_coff_dim (int ignore ATTRIBUTE_UNUSED)
-{
- int dim_index;
-
- if (def_symbol_in_progress == NULL)
- {
- as_warn (_(".dim pseudo-op used outside of .def/.endef: ignored."));
- demand_empty_rest_of_line ();
- return;
- }
-
- S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
-
- for (dim_index = 0; dim_index < DIMNUM; dim_index++)
- {
- SKIP_WHITESPACES ();
- SA_SET_SYM_DIMEN (def_symbol_in_progress, dim_index,
- get_absolute_expression ());
-
- switch (*input_line_pointer)
- {
- case ',':
- input_line_pointer++;
- break;
-
- default:
- as_warn (_("badly formed .dim directive ignored"));
- /* Fall through. */
-
- case '\n':
- case ';':
- dim_index = DIMNUM;
- break;
- }
- }
-
- demand_empty_rest_of_line ();
-}
-
-static void
-obj_coff_line (int ignore ATTRIBUTE_UNUSED)
-{
- int this_base;
- const char *name;
-
- if (def_symbol_in_progress == NULL)
- {
- obj_coff_ln (0);
- return;
- }
-
- name = S_GET_NAME (def_symbol_in_progress);
- this_base = get_absolute_expression ();
-
- /* Only .bf symbols indicate the use of a new base line number; the
- line numbers associated with .ef, .bb, .eb are relative to the
- start of the containing function. */
- if (streq (".bf", name))
- {
- line_base = this_base;
-
-#ifndef NO_LISTING
- {
- extern int listing;
- if (listing)
- listing_source_line ((unsigned int) line_base);
- }
-#endif
- }
-
- S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
- SA_SET_SYM_LNNO (def_symbol_in_progress, this_base);
-
- demand_empty_rest_of_line ();
-}
-
-static void
-obj_coff_size (int ignore ATTRIBUTE_UNUSED)
-{
- if (def_symbol_in_progress == NULL)
- {
- as_warn (_(".size pseudo-op used outside of .def/.endef ignored."));
- demand_empty_rest_of_line ();
- return;
- }
-
- S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
- SA_SET_SYM_SIZE (def_symbol_in_progress, get_absolute_expression ());
- demand_empty_rest_of_line ();
-}
-
-static void
-obj_coff_scl (int ignore ATTRIBUTE_UNUSED)
-{
- if (def_symbol_in_progress == NULL)
- {
- as_warn (_(".scl pseudo-op used outside of .def/.endef ignored."));
- demand_empty_rest_of_line ();
- return;
- }
-
- S_SET_STORAGE_CLASS (def_symbol_in_progress, get_absolute_expression ());
- demand_empty_rest_of_line ();
-}
-
-static void
-obj_coff_tag (int ignore ATTRIBUTE_UNUSED)
-{
- char *symbol_name;
- char name_end;
-
- if (def_symbol_in_progress == NULL)
- {
- as_warn (_(".tag pseudo-op used outside of .def/.endef ignored."));
- demand_empty_rest_of_line ();
- return;
- }
-
- S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
- symbol_name = input_line_pointer;
- name_end = get_symbol_end ();
-#ifdef tc_canonicalize_symbol_name
- symbol_name = tc_canonicalize_symbol_name (symbol_name);
-#endif
-
- /* Assume that the symbol referred to by .tag is always defined.
- This was a bad assumption. I've added find_or_make. xoxorich. */
- SA_SET_SYM_TAGNDX (def_symbol_in_progress,
- (long) tag_find_or_make (symbol_name));
- if (SA_GET_SYM_TAGNDX (def_symbol_in_progress) == 0L)
- as_warn (_("tag not found for .tag %s"), symbol_name);
-
- SF_SET_TAGGED (def_symbol_in_progress);
- *input_line_pointer = name_end;
-
- demand_empty_rest_of_line ();
-}
-
-static void
-obj_coff_type (int ignore ATTRIBUTE_UNUSED)
-{
- if (def_symbol_in_progress == NULL)
- {
- as_warn (_(".type pseudo-op used outside of .def/.endef ignored."));
- demand_empty_rest_of_line ();
- return;
- }
-
- S_SET_DATA_TYPE (def_symbol_in_progress, get_absolute_expression ());
-
- if (ISFCN (S_GET_DATA_TYPE (def_symbol_in_progress)) &&
- S_GET_STORAGE_CLASS (def_symbol_in_progress) != C_TPDEF)
- SF_SET_FUNCTION (def_symbol_in_progress);
-
- demand_empty_rest_of_line ();
-}
-
-static void
-obj_coff_val (int ignore ATTRIBUTE_UNUSED)
-{
- if (def_symbol_in_progress == NULL)
- {
- as_warn (_(".val pseudo-op used outside of .def/.endef ignored."));
- demand_empty_rest_of_line ();
- return;
- }
-
- if (is_name_beginner (*input_line_pointer))
- {
- char *symbol_name = input_line_pointer;
- char name_end = get_symbol_end ();
-
-#ifdef tc_canonicalize_symbol_name
- symbol_name = tc_canonicalize_symbol_name (symbol_name);
-#endif
-
- if (streq (symbol_name, "."))
- {
- def_symbol_in_progress->sy_frag = frag_now;
- S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ());
- /* If the .val is != from the .def (e.g. statics). */
- }
- else if (! streq (S_GET_NAME (def_symbol_in_progress), symbol_name))
- {
- def_symbol_in_progress->sy_value.X_op = O_symbol;
- def_symbol_in_progress->sy_value.X_add_symbol =
- symbol_find_or_make (symbol_name);
- def_symbol_in_progress->sy_value.X_op_symbol = NULL;
- def_symbol_in_progress->sy_value.X_add_number = 0;
-
- /* If the segment is undefined when the forward reference is
- resolved, then copy the segment id from the forward
- symbol. */
- SF_SET_GET_SEGMENT (def_symbol_in_progress);
-
- /* FIXME: gcc can generate address expressions here in
- unusual cases (search for "obscure" in sdbout.c). We
- just ignore the offset here, thus generating incorrect
- debugging information. We ignore the rest of the line
- just below. */
- }
- /* Otherwise, it is the name of a non debug symbol and
- its value will be calculated later. */
- *input_line_pointer = name_end;
-
- /* FIXME: this is to avoid an error message in the
- FIXME case mentioned just above. */
- while (! is_end_of_line[(unsigned char) *input_line_pointer])
- ++input_line_pointer;
- }
- else
- {
- S_SET_VALUE (def_symbol_in_progress,
- (valueT) get_absolute_expression ());
- }
-
- demand_empty_rest_of_line ();
-}
-
-#ifdef TE_PE
-
-/* Handle the .linkonce pseudo-op. This is parsed by s_linkonce in
- read.c, which then calls this object file format specific routine. */
-
-void
-obj_coff_pe_handle_link_once (enum linkonce_type type)
-{
- seg_info (now_seg)->scnhdr.s_flags |= IMAGE_SCN_LNK_COMDAT;
-
- /* We store the type in the seg_info structure, and use it to set up
- the auxiliary entry for the section symbol in c_section_symbol. */
- seg_info (now_seg)->linkonce = type;
-}
-
-#endif /* TE_PE */
-
-void
-coff_obj_read_begin_hook (void)
-{
- /* These had better be the same. Usually 18 bytes. */
-#ifndef BFD_HEADERS
- know (sizeof (SYMENT) == sizeof (AUXENT));
- know (SYMESZ == AUXESZ);
-#endif
- tag_init ();
-}
-
-/* This function runs through the symbol table and puts all the
- externals onto another chain. */
-
-/* The chain of globals. */
-symbolS *symbol_globalP;
-symbolS *symbol_global_lastP;
-
-/* The chain of externals. */
-symbolS *symbol_externP;
-symbolS *symbol_extern_lastP;
-
-stack *block_stack;
-symbolS *last_functionP;
-static symbolS *last_bfP;
-symbolS *last_tagP;
-
-static unsigned int
-yank_symbols (void)
-{
- symbolS *symbolP;
- unsigned int symbol_number = 0;
- unsigned int last_file_symno = 0;
- struct filename_list *filename_list_scan = filename_list_head;
-
- for (symbolP = symbol_rootP;
- symbolP;
- symbolP = symbolP ? symbol_next (symbolP) : symbol_rootP)
- {
- if (symbolP->sy_mri_common)
- {
- if (S_GET_STORAGE_CLASS (symbolP) == C_EXT
-#ifdef TE_PE
- || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK
-#endif
- || S_GET_STORAGE_CLASS (symbolP) == C_WEAKEXT)
- as_bad (_("%s: global symbols not supported in common sections"),
- S_GET_NAME (symbolP));
- symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
- continue;
- }
-
- if (!SF_GET_DEBUG (symbolP))
- {
- /* Debug symbols do not need all this rubbish. */
- symbolS *real_symbolP;
-
- /* L* and C_EFCN symbols never merge. */
- if (!SF_GET_LOCAL (symbolP)
- && !SF_GET_STATICS (symbolP)
- && S_GET_STORAGE_CLASS (symbolP) != C_LABEL
- && symbolP->sy_value.X_op == O_constant
- && (real_symbolP = symbol_find_base (S_GET_NAME (symbolP), DO_NOT_STRIP))
- && real_symbolP != symbolP)
- {
- /* FIXME-SOON: where do dups come from?
- Maybe tag references before definitions? xoxorich. */
- /* Move the debug data from the debug symbol to the
- real symbol. Do NOT do the opposite (i.e. move from
- real symbol to debug symbol and remove real symbol from the
- list.) Because some pointers refer to the real symbol
- whereas no pointers refer to the debug symbol. */
- c_symbol_merge (symbolP, real_symbolP);
- /* Replace the current symbol by the real one. */
- /* The symbols will never be the last or the first
- because : 1st symbol is .file and 3 last symbols are
- .text, .data, .bss. */
- symbol_remove (real_symbolP, &symbol_rootP, &symbol_lastP);
- symbol_insert (real_symbolP, symbolP, &symbol_rootP, &symbol_lastP);
- symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
- symbolP = real_symbolP;
- }
-
- if (flag_readonly_data_in_text && (S_GET_SEGMENT (symbolP) == SEG_E1))
- S_SET_SEGMENT (symbolP, SEG_E0);
-
- resolve_symbol_value (symbolP);
-
- if (S_GET_STORAGE_CLASS (symbolP) == C_NULL)
- {
- if (!S_IS_DEFINED (symbolP) && !SF_GET_LOCAL (symbolP))
- S_SET_EXTERNAL (symbolP);
-
- else if (S_GET_SEGMENT (symbolP) == SEG_E0)
- S_SET_STORAGE_CLASS (symbolP, C_LABEL);
-
- else
- S_SET_STORAGE_CLASS (symbolP, C_STAT);
- }
-
- /* Mainly to speed up if not -g. */
- if (SF_GET_PROCESS (symbolP))
- {
- /* Handle the nested blocks auxiliary info. */
- if (S_GET_STORAGE_CLASS (symbolP) == C_BLOCK)
- {
- if (streq (S_GET_NAME (symbolP), ".bb"))
- stack_push (block_stack, (char *) &symbolP);
- else
- {
- /* .eb */
- symbolS *begin_symbolP;
-
- begin_symbolP = *(symbolS **) stack_pop (block_stack);
- if (begin_symbolP == NULL)
- as_warn (_("mismatched .eb"));
- else
- SA_SET_SYM_ENDNDX (begin_symbolP, symbol_number + 2);
- }
- }
-
- /* If we are able to identify the type of a function, and we
- are out of a function (last_functionP == 0) then, the
- function symbol will be associated with an auxiliary
- entry. */
- if (last_functionP == NULL && SF_GET_FUNCTION (symbolP))
- {
- last_functionP = symbolP;
-
- if (S_GET_NUMBER_AUXILIARY (symbolP) < 1)
- S_SET_NUMBER_AUXILIARY (symbolP, 1);
- }
-
- if (S_GET_STORAGE_CLASS (symbolP) == C_FCN)
- {
- if (streq (S_GET_NAME (symbolP), ".bf"))
- {
- if (last_bfP != NULL)
- SA_SET_SYM_ENDNDX (last_bfP, symbol_number);
- last_bfP = symbolP;
- }
- }
- else if (S_GET_STORAGE_CLASS (symbolP) == C_EFCN)
- {
- /* I don't even know if this is needed for sdb. But
- the standard assembler generates it, so... */
- if (last_functionP == NULL)
- as_fatal (_("C_EFCN symbol out of scope"));
- SA_SET_SYM_FSIZE (last_functionP,
- (long) (S_GET_VALUE (symbolP) -
- S_GET_VALUE (last_functionP)));
- SA_SET_SYM_ENDNDX (last_functionP, symbol_number);
- last_functionP = NULL;
- }
- }
- }
- else if (SF_GET_TAG (symbolP))
- /* First descriptor of a structure must point to
- the first slot after the structure description. */
- last_tagP = symbolP;
-
- else if (S_GET_STORAGE_CLASS (symbolP) == C_EOS)
- /* +2 take in account the current symbol. */
- SA_SET_SYM_ENDNDX (last_tagP, symbol_number + 2);
-
- else if (S_GET_STORAGE_CLASS (symbolP) == C_FILE)
- {
- /* If the filename was too long to fit in the
- auxent, put it in the string table. */
- if (SA_GET_FILE_FNAME_ZEROS (symbolP) == 0
- && SA_GET_FILE_FNAME_OFFSET (symbolP) != 0)
- {
- SA_SET_FILE_FNAME_OFFSET (symbolP, string_byte_count);
- string_byte_count += strlen (filename_list_scan->filename) + 1;
- filename_list_scan = filename_list_scan->next;
- }
- if (S_GET_VALUE (symbolP))
- {
- S_SET_VALUE (symbolP, last_file_symno);
- last_file_symno = symbol_number;
- }
- }
-
-#ifdef tc_frob_coff_symbol
- tc_frob_coff_symbol (symbolP);
-#endif
-
- /* We must put the external symbols apart. The loader
- does not bomb if we do not. But the references in
- the endndx field for a .bb symbol are not corrected
- if an external symbol is removed between .bb and .be.
- I.e in the following case :
- [20] .bb endndx = 22
- [21] foo external
- [22] .be
- ld will move the symbol 21 to the end of the list but
- endndx will still be 22 instead of 21. */
-
- if (SF_GET_LOCAL (symbolP))
- /* Remove C_EFCN and LOCAL (L...) symbols. */
- /* Next pointer remains valid. */
- symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
-
- else if (symbolP->sy_value.X_op == O_symbol
- && (! S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)))
- /* Skip symbols which were equated to undefined or common
- symbols. */
- symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
-
- else if (!S_IS_DEFINED (symbolP)
- && !S_IS_DEBUG (symbolP)
- && !SF_GET_STATICS (symbolP)
- && (S_GET_STORAGE_CLASS (symbolP) == C_EXT
-#ifdef TE_PE
- || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK
-#endif
- || S_GET_STORAGE_CLASS (symbolP) == C_WEAKEXT))
- {
- /* If external, Remove from the list. */
- symbolS *hold = symbol_previous (symbolP);
-
- symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
- symbol_clear_list_pointers (symbolP);
- symbol_append (symbolP, symbol_extern_lastP, &symbol_externP, &symbol_extern_lastP);
- symbolP = hold;
- }
- else if (! S_IS_DEBUG (symbolP)
- && ! SF_GET_STATICS (symbolP)
- && ! SF_GET_FUNCTION (symbolP)
- && (S_GET_STORAGE_CLASS (symbolP) == C_EXT
-#ifdef TE_PE
- || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK
-#endif
- || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK))
- {
- symbolS *hold = symbol_previous (symbolP);
-
- /* The O'Reilly COFF book says that defined global symbols
- come at the end of the symbol table, just before
- undefined global symbols. */
- symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
- symbol_clear_list_pointers (symbolP);
- symbol_append (symbolP, symbol_global_lastP, &symbol_globalP,
- &symbol_global_lastP);
- symbolP = hold;
- }
- else
- {
- if (SF_GET_STRING (symbolP))
- {
- symbolP->sy_name_offset = string_byte_count;
- string_byte_count += strlen (S_GET_NAME (symbolP)) + 1;
- }
- else
- symbolP->sy_name_offset = 0;
-
- symbolP->sy_number = symbol_number;
- symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP);
- }
- }
-
- return symbol_number;
-}
-
-static unsigned int
-glue_symbols (symbolS **head, symbolS **tail)
-{
- unsigned int symbol_number = 0;
-
- while (*head != NULL)
- {
- symbolS *tmp = *head;
-
- /* Append. */
- symbol_remove (tmp, head, tail);
- symbol_append (tmp, symbol_lastP, &symbol_rootP, &symbol_lastP);
-
- /* Process. */
- if (SF_GET_STRING (tmp))
- {
- tmp->sy_name_offset = string_byte_count;
- string_byte_count += strlen (S_GET_NAME (tmp)) + 1;
- }
- else
- /* Fix "long" names. */
- tmp->sy_name_offset = 0;
-
- tmp->sy_number = symbol_number;
- symbol_number += 1 + S_GET_NUMBER_AUXILIARY (tmp);
- }
-
- return symbol_number;
-}
-
-static unsigned int
-tie_tags (void)
-{
- unsigned int symbol_number = 0;
- symbolS *symbolP;
-
- for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP))
- {
- symbolP->sy_number = symbol_number;
-
- if (SF_GET_TAGGED (symbolP))
- {
- SA_SET_SYM_TAGNDX
- (symbolP,
- ((symbolS *) SA_GET_SYM_TAGNDX (symbolP))->sy_number);
- }
-
- symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP);
- }
-
- return symbol_number;
-}
-
-
-/* Build a 'section static' symbol. */
-
-static symbolS *
-c_section_symbol (char *name, int idx)
-{
- symbolS *symbolP;
-
- symbolP = symbol_find_base (name, DO_NOT_STRIP);
- if (symbolP == NULL)
- symbolP = symbol_new (name, idx, 0, &zero_address_frag);
- else
- {
- /* Mmmm. I just love violating interfaces. Makes me feel...dirty. */
- S_SET_SEGMENT (symbolP, idx);
- symbolP->sy_frag = &zero_address_frag;
- }
-
- S_SET_STORAGE_CLASS (symbolP, C_STAT);
- S_SET_NUMBER_AUXILIARY (symbolP, 1);
-
- SF_SET_STATICS (symbolP);
-
-#ifdef TE_DELTA
- /* manfred@s-direktnet.de: section symbols *must* have the LOCAL bit cleared,
- which is set by the new definition of LOCAL_LABEL in tc-m68k.h. */
- SF_CLEAR_LOCAL (symbolP);
-#endif
-#ifdef TE_PE
- /* If the .linkonce pseudo-op was used for this section, we must
- store the information in the auxiliary entry for the section
- symbol. */
- if (segment_info[idx].linkonce != LINKONCE_UNSET)
- {
- int type;
-
- switch (segment_info[idx].linkonce)
- {
- default:
- abort ();
- case LINKONCE_DISCARD:
- type = IMAGE_COMDAT_SELECT_ANY;
- break;
- case LINKONCE_ONE_ONLY:
- type = IMAGE_COMDAT_SELECT_NODUPLICATES;
- break;
- case LINKONCE_SAME_SIZE:
- type = IMAGE_COMDAT_SELECT_SAME_SIZE;
- break;
- case LINKONCE_SAME_CONTENTS:
- type = IMAGE_COMDAT_SELECT_EXACT_MATCH;
- break;
- }
-
- SYM_AUXENT (symbolP)->x_scn.x_comdat = type;
- }
-#endif /* TE_PE */
-
- return symbolP;
-}
-
-static void
-crawl_symbols (object_headers *h, bfd *abfd ATTRIBUTE_UNUSED)
-{
- unsigned int i;
-
- /* Initialize the stack used to keep track of the matching .bb .be. */
- block_stack = stack_init (512, sizeof (symbolS *));
-
- /* The symbol list should be ordered according to the following sequence
- order :
- . .file symbol
- . debug entries for functions
- . fake symbols for the sections, including .text .data and .bss
- . defined symbols
- . undefined symbols
- But this is not mandatory. The only important point is to put the
- undefined symbols at the end of the list. */
-
- /* Is there a .file symbol ? If not insert one at the beginning. */
- if (symbol_rootP == NULL
- || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE)
- c_dot_file_symbol ("fake", 0);
-
- /* Build up static symbols for the sections, they are filled in later. */
- for (i = SEG_E0; i < SEG_LAST; i++)
- if (segment_info[i].scnhdr.s_name[0])
- segment_info[i].dot = c_section_symbol ((char *) segment_info[i].name,
- i - SEG_E0 + 1);
-
- /* Take all the externals out and put them into another chain. */
- H_SET_SYMBOL_TABLE_SIZE (h, yank_symbols ());
- /* Take the externals and glue them onto the end. */
- H_SET_SYMBOL_TABLE_SIZE (h,
- (H_GET_SYMBOL_COUNT (h)
- + glue_symbols (&symbol_globalP,
- &symbol_global_lastP)
- + glue_symbols (&symbol_externP,
- &symbol_extern_lastP)));
-
- H_SET_SYMBOL_TABLE_SIZE (h, tie_tags ());
- know (symbol_globalP == NULL);
- know (symbol_global_lastP == NULL);
- know (symbol_externP == NULL);
- know (symbol_extern_lastP == NULL);
-}
-
-/* Find strings by crawling along symbol table chain. */
-
-static void
-w_strings (char *where)
-{
- symbolS *symbolP;
- struct filename_list *filename_list_scan = filename_list_head;
-
- /* Gotta do md_ byte-ordering stuff for string_byte_count first - KWK. */
- md_number_to_chars (where, (valueT) string_byte_count, 4);
- where += 4;
-
-#ifdef COFF_LONG_SECTION_NAMES
- /* Support long section names as found in PE. This code must
- coordinate with that in coff_header_append and write_object_file. */
- {
- unsigned int i;
-
- for (i = SEG_E0; i < SEG_LAST; i++)
- {
- if (segment_info[i].scnhdr.s_name[0]
- && strlen (segment_info[i].name) > SCNNMLEN)
- {
- unsigned int size;
-
- size = strlen (segment_info[i].name) + 1;
- memcpy (where, segment_info[i].name, size);
- where += size;
- }
- }
- }
-#endif /* COFF_LONG_SECTION_NAMES */
-
- for (symbolP = symbol_rootP;
- symbolP;
- symbolP = symbol_next (symbolP))
- {
- unsigned int size;
-
- if (SF_GET_STRING (symbolP))
- {
- size = strlen (S_GET_NAME (symbolP)) + 1;
- memcpy (where, S_GET_NAME (symbolP), size);
- where += size;
- }
- if (S_GET_STORAGE_CLASS (symbolP) == C_FILE
- && SA_GET_FILE_FNAME_ZEROS (symbolP) == 0
- && SA_GET_FILE_FNAME_OFFSET (symbolP) != 0)
- {
- size = strlen (filename_list_scan->filename) + 1;
- memcpy (where, filename_list_scan->filename, size);
- filename_list_scan = filename_list_scan ->next;
- where += size;
- }
- }
-}
-
-static void
-do_linenos_for (bfd * abfd,
- object_headers * h,
- unsigned long *file_cursor)
-{
- unsigned int idx;
- unsigned long start = *file_cursor;
-
- for (idx = SEG_E0; idx < SEG_LAST; idx++)
- {
- segment_info_type *s = segment_info + idx;
-
- if (s->scnhdr.s_nlnno != 0)
- {
- struct lineno_list *line_ptr;
- struct external_lineno *buffer = xmalloc (s->scnhdr.s_nlnno * LINESZ);
- struct external_lineno *dst = buffer;
-
- /* Run through the table we've built and turn it into its external
- form, take this chance to remove duplicates. */
-
- for (line_ptr = s->lineno_list_head;
- line_ptr != (struct lineno_list *) NULL;
- line_ptr = line_ptr->next)
- {
- if (line_ptr->line.l_lnno == 0)
- {
- /* Turn a pointer to a symbol into the symbols' index,
- provided that it has been initialised. */
- if (line_ptr->line.l_addr.l_symndx)
- line_ptr->line.l_addr.l_symndx =
- ((symbolS *) line_ptr->line.l_addr.l_symndx)->sy_number;
- }
- else
- line_ptr->line.l_addr.l_paddr += ((struct frag *) (line_ptr->frag))->fr_address;
-
- (void) bfd_coff_swap_lineno_out (abfd, &(line_ptr->line), dst);
- dst++;
- }
-
- s->scnhdr.s_lnnoptr = *file_cursor;
-
- bfd_bwrite (buffer, (bfd_size_type) s->scnhdr.s_nlnno * LINESZ, abfd);
- free (buffer);
-
- *file_cursor += s->scnhdr.s_nlnno * LINESZ;
- }
- }
-
- H_SET_LINENO_SIZE (h, *file_cursor - start);
-}
-
-/* Now we run through the list of frag chains in a segment and
- make all the subsegment frags appear at the end of the
- list, as if the seg 0 was extra long. */
-
-static void
-remove_subsegs (void)
-{
- unsigned int i;
-
- for (i = SEG_E0; i < SEG_UNKNOWN; i++)
- {
- frchainS *head = segment_info[i].frchainP;
- fragS dummy;
- fragS *prev_frag = &dummy;
-
- while (head && head->frch_seg == i)
- {
- prev_frag->fr_next = head->frch_root;
- prev_frag = head->frch_last;
- head = head->frch_next;
- }
- prev_frag->fr_next = 0;
- }
-}
-
-unsigned long machine;
-int coff_flags;
-
-#ifndef SUB_SEGMENT_ALIGN
-#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 || (FRCHAIN)->frch_next->frch_seg != (SEG) \
- ? get_recorded_alignment (SEG) : 0)
-#else
-#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 1
-#endif
-#endif
-
-static void
-w_symbols (bfd * abfd, char *where, symbolS * symbol_rootP)
-{
- symbolS *symbolP;
- unsigned int i;
-
- /* First fill in those values we have only just worked out. */
- for (i = SEG_E0; i < SEG_LAST; i++)
- {
- symbolP = segment_info[i].dot;
- if (symbolP)
- {
- SA_SET_SCN_SCNLEN (symbolP, segment_info[i].scnhdr.s_size);
- SA_SET_SCN_NRELOC (symbolP, segment_info[i].scnhdr.s_nreloc);
- SA_SET_SCN_NLINNO (symbolP, segment_info[i].scnhdr.s_nlnno);
- }
- }
-
- /* Emit all symbols left in the symbol chain. */
- for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP))
- {
- /* Used to save the offset of the name. It is used to point
- to the string in memory but must be a file offset. */
- char *temp;
-
- /* We can't fix the lnnoptr field in yank_symbols with the other
- adjustments, because we have to wait until we know where they
- go in the file. */
- if (SF_GET_ADJ_LNNOPTR (symbolP))
- SA_GET_SYM_LNNOPTR (symbolP) +=
- segment_info[S_GET_SEGMENT (symbolP)].scnhdr.s_lnnoptr;
-
- tc_coff_symbol_emit_hook (symbolP);
-
- temp = S_GET_NAME (symbolP);
- if (SF_GET_STRING (symbolP))
- {
- S_SET_OFFSET (symbolP, symbolP->sy_name_offset);
- S_SET_ZEROES (symbolP, 0);
- }
- else
- {
- memset (symbolP->sy_symbol.ost_entry.n_name, 0, SYMNMLEN);
- strncpy (symbolP->sy_symbol.ost_entry.n_name, temp, SYMNMLEN);
- }
- where = symbol_to_chars (abfd, where, symbolP);
- S_SET_NAME (symbolP, temp);
- }
-}
-
-static void
-fixup_mdeps (fragS *frags,
- object_headers *h ATTRIBUTE_UNUSED,
- segT this_segment)
-{
- subseg_change (this_segment, 0);
-
- while (frags)
- {
- switch (frags->fr_type)
- {
- case rs_align:
- case rs_align_code:
- case rs_align_test:
- case rs_org:
-#ifdef HANDLE_ALIGN
- HANDLE_ALIGN (frags);
-#endif
- frags->fr_type = rs_fill;
- frags->fr_offset =
- ((frags->fr_next->fr_address - frags->fr_address - frags->fr_fix)
- / frags->fr_var);
- break;
- case rs_machine_dependent:
- md_convert_frag (h, this_segment, frags);
- frag_wane (frags);
- break;
- default:
- ;
- }
- frags = frags->fr_next;
- }
-}
-
-#ifndef TC_FORCE_RELOCATION
-#define TC_FORCE_RELOCATION(fix) 0
-#endif
-
-static void
-fixup_segment (segment_info_type * segP, segT this_segment_type)
-{
- fixS * fixP;
- symbolS *add_symbolP;
- symbolS *sub_symbolP;
- long add_number;
- int size;
- char *place;
- long where;
- char pcrel;
- fragS *fragP;
- segT add_symbol_segment = absolute_section;
-
- for (fixP = segP->fix_root; fixP; fixP = fixP->fx_next)
- {
- fragP = fixP->fx_frag;
- know (fragP);
- where = fixP->fx_where;
- place = fragP->fr_literal + where;
- size = fixP->fx_size;
- add_symbolP = fixP->fx_addsy;
- sub_symbolP = fixP->fx_subsy;
- add_number = fixP->fx_offset;
- pcrel = fixP->fx_pcrel;
-
- /* We want function-relative stabs to work on systems which
- may use a relaxing linker; thus we must handle the sym1-sym2
- fixups function-relative stabs generates.
-
- Of course, if you actually enable relaxing in the linker, the
- line and block scoping information is going to be incorrect
- in some cases. The only way to really fix this is to support
- a reloc involving the difference of two symbols. */
- if (linkrelax
- && (!sub_symbolP || pcrel))
- continue;
-
-#ifdef TC_I960
- if (fixP->fx_tcbit && SF_GET_CALLNAME (add_symbolP))
- {
- /* Relocation should be done via the associated 'bal' entry
- point symbol. */
- if (!SF_GET_BALNAME (tc_get_bal_of_call (add_symbolP)))
- {
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("No 'bal' entry point for leafproc %s"),
- S_GET_NAME (add_symbolP));
- continue;
- }
- fixP->fx_addsy = add_symbolP = tc_get_bal_of_call (add_symbolP);
- }
-#endif
-
- /* Make sure the symbols have been resolved; this may not have
- happened if these are expression symbols. */
- if (add_symbolP != NULL && ! add_symbolP->sy_resolved)
- resolve_symbol_value (add_symbolP);
-
- if (add_symbolP != NULL)
- {
- /* If this fixup is against a symbol which has been equated
- to another symbol, convert it to the other symbol. */
- if (add_symbolP->sy_value.X_op == O_symbol
- && (! S_IS_DEFINED (add_symbolP)
- || S_IS_COMMON (add_symbolP)))
- {
- while (add_symbolP->sy_value.X_op == O_symbol
- && (! S_IS_DEFINED (add_symbolP)
- || S_IS_COMMON (add_symbolP)))
- {
- symbolS *n;
-
- /* We must avoid looping, as that can occur with a
- badly written program. */
- n = add_symbolP->sy_value.X_add_symbol;
- if (n == add_symbolP)
- break;
- add_number += add_symbolP->sy_value.X_add_number;
- add_symbolP = n;
- }
- fixP->fx_addsy = add_symbolP;
- fixP->fx_offset = add_number;
- }
- }
-
- if (sub_symbolP != NULL && ! sub_symbolP->sy_resolved)
- resolve_symbol_value (sub_symbolP);
-
- if (add_symbolP != NULL
- && add_symbolP->sy_mri_common)
- {
- 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)
- {
- 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 = 0;
- fixP->fx_done = 1;
- }
- else
- {
-#ifndef TC_M68K
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("Negative of non-absolute symbol %s"),
- S_GET_NAME (sub_symbolP));
-#endif
- add_number -= S_GET_VALUE (sub_symbolP);
- } /* not absolute */
-
- /* If sub_symbol is in the same segment that add_symbol
- and add_symbol is either in DATA, TEXT, BSS or ABSOLUTE. */
- }
- 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;
-
- if (!TC_FORCE_RELOCATION (fixP))
- {
- fixP->fx_addsy = NULL;
- fixP->fx_subsy = NULL;
- fixP->fx_done = 1;
-#ifdef TC_M68K /* FIXME: Is this right? */
- pcrel = 0;
- fixP->fx_pcrel = 0;
-#endif
- }
- }
- 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)
- {
- /* Make it pc-relative. */
- add_number += (md_pcrel_from (fixP)
- - S_GET_VALUE (sub_symbolP));
- pcrel = 1;
- fixP->fx_pcrel = 1;
- sub_symbolP = 0;
- fixP->fx_subsy = 0;
- }
-#endif
- else
- {
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("Can't emit reloc {- %s-seg symbol \"%s\"} @ file address %ld."),
- segment_name (S_GET_SEGMENT (sub_symbolP)),
- S_GET_NAME (sub_symbolP),
- (long) (fragP->fr_address + where));
- }
- }
- }
-
- if (add_symbolP)
- {
- if (add_symbol_segment == this_segment_type && pcrel)
- {
- /* 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
-
- add_number += S_GET_VALUE (add_symbolP);
- add_number -= md_pcrel_from (fixP);
-
- /* We used to do
- add_number -= segP->scnhdr.s_vaddr;
- if defined (TC_I386) || defined (TE_LYNX). I now
- think that was an error propagated from the case when
- we are going to emit the relocation. If we are not
- going to emit the relocation, then we just want to
- set add_number to the difference between the symbols.
- This is a case that would only arise when there is a
- PC relative reference from a section other than .text
- to a symbol defined in the same section, and the
- reference is not relaxed. Since jump instructions on
- the i386 are relaxed, this could only arise with a
- call instruction. */
-
- /* Lie. Don't want further pcrel processing. */
- pcrel = 0;
- if (!TC_FORCE_RELOCATION (fixP))
- {
- fixP->fx_addsy = NULL;
- fixP->fx_done = 1;
- }
- }
- else
- {
- switch (add_symbol_segment)
- {
- case absolute_section:
-#ifdef TC_I960
- /* See comment about reloc_callj() above. */
- reloc_callj (fixP);
-#endif /* TC_I960 */
- add_number += S_GET_VALUE (add_symbolP);
- add_symbolP = NULL;
-
- if (!TC_FORCE_RELOCATION (fixP))
- {
- fixP->fx_addsy = NULL;
- fixP->fx_done = 1;
- }
- break;
- default:
-
-#if defined(TC_A29K) || (defined(TE_PE) && defined(TC_I386)) || defined(TC_M88K) || defined(TC_OR32)
- /* This really should be handled in the linker, but
- backward compatibility forbids. */
- add_number += S_GET_VALUE (add_symbolP);
-#else
- add_number += S_GET_VALUE (add_symbolP) +
- segment_info[S_GET_SEGMENT (add_symbolP)].scnhdr.s_paddr;
-#endif
- break;
-
- case SEG_UNKNOWN:
-#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;
- }
-#endif /* TC_I960 */
-#if ((defined (TC_I386) || defined (TE_LYNX) || defined (TE_AUX)) && !defined(TE_PE)) || defined (COFF_COMMON_ADDEND)
- /* 386 COFF uses a peculiar format in which the
- value of a common symbol is stored in the .text
- segment (I've checked this on SVR3.2 and SCO
- 3.2.2) Ian Taylor <ian@cygnus.com>. */
- /* This is also true for 68k COFF on sysv machines
- (Checked on Motorola sysv68 R3V6 and R3V7.1, and also on
- UNIX System V/M68000, Release 1.0 from ATT/Bell Labs)
- Philippe De Muyter <phdm@info.ucl.ac.be>. */
- if (S_IS_COMMON (add_symbolP))
- add_number += S_GET_VALUE (add_symbolP);
-#endif
- break;
-
- }
- }
- }
-
- if (pcrel)
- {
-#if !defined(TC_M88K) && !(defined(TE_PE) && defined(TC_I386)) && !defined(TC_A29K) && !defined(TC_OR32)
- /* This adjustment is not correct on the m88k, for which the
- linker does all the computation. */
- add_number -= md_pcrel_from (fixP);
-#endif
- if (add_symbolP == 0)
- fixP->fx_addsy = &abs_symbol;
-#if defined (TC_I386) || defined (TE_LYNX) || defined (TC_I960) || defined (TC_M68K)
- /* On the 386 we must adjust by the segment vaddr as well.
- Ian Taylor.
-
- I changed the i960 to work this way as well. This is
- compatible with the current GNU linker behaviour. I do
- not know what other i960 COFF assemblers do. This is not
- a common case: normally, only assembler code will contain
- a PC relative reloc, and only branches which do not
- originate in the .text section will have a non-zero
- address.
-
- I changed the m68k to work this way as well. This will
- break existing PC relative relocs from sections which do
- not start at address 0, but it will make ld -r work.
- Ian Taylor, 4 Oct 96. */
-
- add_number -= segP->scnhdr.s_vaddr;
-#endif
- }
-
- md_apply_fix3 (fixP, (valueT *) & add_number, this_segment_type);
-
- if (!fixP->fx_bit_fixP && ! fixP->fx_no_overflow)
- {
-#ifndef TC_M88K
- /* The m88k uses the offset field of the reloc to get around
- this problem. */
- if ((size == 1
- && ((add_number & ~0xFF)
- || (fixP->fx_signed && (add_number & 0x80)))
- && ((add_number & ~0xFF) != (-1 & ~0xFF)
- || (add_number & 0x80) == 0))
- || (size == 2
- && ((add_number & ~0xFFFF)
- || (fixP->fx_signed && (add_number & 0x8000)))
- && ((add_number & ~0xFFFF) != (-1 & ~0xFFFF)
- || (add_number & 0x8000) == 0)))
- {
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("Value of %ld too large for field of %d bytes at 0x%lx"),
- (long) add_number, size,
- (unsigned long) (fragP->fr_address + where));
- }
-#endif
-#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
- }
- }
-}
-
-/* Fill in the counts in the first entry in a .stab section. */
-
-static void
-adjust_stab_section (bfd *abfd, segT seg)
-{
- segT stabstrseg = SEG_UNKNOWN;
- const char *secname, *name2;
- char *name;
- char *p = NULL;
- int i, strsz = 0, nsyms;
- fragS *frag = segment_info[seg].frchainP->frch_root;
-
- /* Look for the associated string table section. */
-
- secname = segment_info[seg].name;
- name = alloca (strlen (secname) + 4);
- strcpy (name, secname);
- strcat (name, "str");
-
- for (i = SEG_E0; i < SEG_UNKNOWN; i++)
- {
- name2 = segment_info[i].name;
- if (name2 != NULL && strneq (name2, name, 8))
- {
- stabstrseg = i;
- break;
- }
- }
-
- /* If we found the section, get its size. */
- if (stabstrseg != SEG_UNKNOWN)
- strsz = size_section (abfd, stabstrseg);
-
- nsyms = size_section (abfd, seg) / 12 - 1;
-
- /* Look for the first frag of sufficient size for the initial stab
- symbol, and collect a pointer to it. */
- while (frag && frag->fr_fix < 12)
- frag = frag->fr_next;
- assert (frag != 0);
- p = frag->fr_literal;
- assert (p != 0);
-
- /* Write in the number of stab symbols and the size of the string
- table. */
- bfd_h_put_16 (abfd, (bfd_vma) nsyms, (bfd_byte *) p + 6);
- bfd_h_put_32 (abfd, (bfd_vma) strsz, (bfd_byte *) p + 8);
-}
-
-void
-write_object_file (void)
-{
- int i;
- const char *name;
- struct frchain *frchain_ptr;
- object_headers headers;
- unsigned long file_cursor;
- bfd *abfd;
- unsigned int addr;
- abfd = bfd_openw (out_file_name, TARGET_FORMAT);
-
- if (abfd == 0)
- {
- as_perror (_("FATAL: Can't create %s"), out_file_name);
- exit (EXIT_FAILURE);
- }
- bfd_set_format (abfd, bfd_object);
- bfd_set_arch_mach (abfd, BFD_ARCH, machine);
-
- string_byte_count = 4;
-
- /* Run through all the sub-segments and align them up. Also
- close any open frags. We tack a .fill onto the end of the
- frag chain so that any .align's size can be worked by looking
- at the next frag. */
- for (frchain_ptr = frchain_root;
- frchain_ptr != (struct frchain *) NULL;
- frchain_ptr = frchain_ptr->frch_next)
- {
- int alignment;
-
- subseg_set (frchain_ptr->frch_seg, frchain_ptr->frch_subseg);
-
- alignment = SUB_SEGMENT_ALIGN (now_seg, frchain_ptr);
-
-#ifdef md_do_align
- md_do_align (alignment, NULL, 0, 0, alignment_done);
-#endif
- if (subseg_text_p (now_seg))
- frag_align_code (alignment, 0);
- else
- frag_align (alignment, 0, 0);
-
-#ifdef md_do_align
- alignment_done:
-#endif
-
- frag_wane (frag_now);
- frag_now->fr_fix = 0;
- know (frag_now->fr_next == NULL);
- }
-
- remove_subsegs ();
-
- for (i = SEG_E0; i < SEG_UNKNOWN; i++)
- relax_segment (segment_info[i].frchainP->frch_root, i);
-
- /* Relaxation has completed. Freeze all syms. */
- finalize_syms = 1;
-
- H_SET_NUMBER_OF_SECTIONS (&headers, 0);
-
- /* Find out how big the sections are, and set the addresses. */
- addr = 0;
- for (i = SEG_E0; i < SEG_UNKNOWN; i++)
- {
- long size;
-
- segment_info[i].scnhdr.s_paddr = addr;
- segment_info[i].scnhdr.s_vaddr = addr;
-
- if (segment_info[i].scnhdr.s_name[0])
- {
- H_SET_NUMBER_OF_SECTIONS (&headers,
- H_GET_NUMBER_OF_SECTIONS (&headers) + 1);
-
-#ifdef COFF_LONG_SECTION_NAMES
- /* Support long section names as found in PE. This code
- must coordinate with that in coff_header_append and
- w_strings. */
- {
- unsigned int len;
-
- len = strlen (segment_info[i].name);
- if (len > SCNNMLEN)
- string_byte_count += len + 1;
- }
-#endif /* COFF_LONG_SECTION_NAMES */
- }
-
- size = size_section (abfd, (unsigned int) i);
- addr += size;
-
- /* I think the section alignment is only used on the i960; the
- i960 needs it, and it should do no harm on other targets. */
-#ifdef ALIGNMENT_IN_S_FLAGS
- segment_info[i].scnhdr.s_flags |= (section_alignment[i] & 0xF) << 8;
-#else
- segment_info[i].scnhdr.s_align = 1 << section_alignment[i];
-#endif
-
- if (i == SEG_E0)
- H_SET_TEXT_SIZE (&headers, size);
- else if (i == SEG_E1)
- H_SET_DATA_SIZE (&headers, size);
- else if (i == SEG_E2)
- H_SET_BSS_SIZE (&headers, size);
- }
-
- /* Turn the gas native symbol table shape into a coff symbol table. */
- crawl_symbols (&headers, abfd);
-
- if (string_byte_count == 4)
- string_byte_count = 0;
-
- H_SET_STRING_SIZE (&headers, string_byte_count);
-
-#ifdef tc_frob_file
- tc_frob_file ();
-#endif
-
- for (i = SEG_E0; i < SEG_UNKNOWN; i++)
- {
- fixup_mdeps (segment_info[i].frchainP->frch_root, &headers, i);
- fixup_segment (&segment_info[i], i);
- }
-
- /* Look for ".stab" segments and fill in their initial symbols
- correctly. */
- for (i = SEG_E0; i < SEG_UNKNOWN; i++)
- {
- name = segment_info[i].name;
-
- if (name != NULL
- && strneq (".stab", name, 5)
- && ! strneq (".stabstr", name, 8))
- adjust_stab_section (abfd, i);
- }
-
- file_cursor = H_GET_TEXT_FILE_OFFSET (&headers);
-
- bfd_seek (abfd, (file_ptr) file_cursor, 0);
-
- /* Plant the data. */
- fill_section (abfd, &headers, &file_cursor);
-
- do_relocs_for (abfd, &headers, &file_cursor);
-
- do_linenos_for (abfd, &headers, &file_cursor);
-
- H_SET_FILE_MAGIC_NUMBER (&headers, COFF_MAGIC);
-#ifndef OBJ_COFF_OMIT_TIMESTAMP
- H_SET_TIME_STAMP (&headers, (long) time (NULL));
-#else
- H_SET_TIME_STAMP (&headers, 0);
-#endif
-#ifdef TC_COFF_SET_MACHINE
- TC_COFF_SET_MACHINE (&headers);
-#endif
-
-#ifndef COFF_FLAGS
-#define COFF_FLAGS 0
-#endif
-
-#ifdef KEEP_RELOC_INFO
- H_SET_FLAGS (&headers, ((H_GET_LINENO_SIZE (&headers) ? 0 : F_LNNO) |
- COFF_FLAGS | coff_flags));
-#else
- H_SET_FLAGS (&headers, ((H_GET_LINENO_SIZE (&headers) ? 0 : F_LNNO) |
- (H_GET_RELOCATION_SIZE (&headers) ? 0 : F_RELFLG) |
- COFF_FLAGS | coff_flags));
-#endif
-
- {
- unsigned int symtable_size = H_GET_SYMBOL_TABLE_SIZE (&headers);
- char *buffer1 = xmalloc (symtable_size + string_byte_count + 1);
-
- H_SET_SYMBOL_TABLE_POINTER (&headers, bfd_tell (abfd));
- w_symbols (abfd, buffer1, symbol_rootP);
- if (string_byte_count > 0)
- w_strings (buffer1 + symtable_size);
- bfd_bwrite (buffer1, (bfd_size_type) symtable_size + string_byte_count,
- abfd);
- free (buffer1);
- }
-
- coff_header_append (abfd, &headers);
-
- {
- extern bfd *stdoutput;
- stdoutput = abfd;
- }
-}
-
-/* Add a new segment. This is called from subseg_new via the
- obj_new_segment macro. */
-
-segT
-obj_coff_add_segment (const char *name)
-{
- unsigned int i;
-
-#ifndef COFF_LONG_SECTION_NAMES
- char buf[SCNNMLEN + 1];
-
- strncpy (buf, name, SCNNMLEN);
- buf[SCNNMLEN] = '\0';
- name = buf;
-#endif
-
- for (i = SEG_E0; i < SEG_LAST && segment_info[i].scnhdr.s_name[0]; i++)
- if (streq (name, segment_info[i].name))
- return (segT) i;
-
- if (i == SEG_LAST)
- {
- as_bad (_("Too many new sections; can't add \"%s\""), name);
- return now_seg;
- }
-
- /* Add a new section. */
- strncpy (segment_info[i].scnhdr.s_name, name,
- sizeof (segment_info[i].scnhdr.s_name));
- segment_info[i].scnhdr.s_flags = STYP_REG;
- segment_info[i].name = xstrdup (name);
-
- return (segT) i;
-}
-
-/* Implement the .section pseudo op:
- .section name {, "flags"}
- ^ ^
- | +--- optional flags: 'b' for bss
- | 'i' for info
- +-- section name 'l' for lib
- 'n' for noload
- 'o' for over
- 'w' for data
- 'd' (apparently m88k for data)
- 'x' for text
- 'r' for read-only data
- But if the argument is not a quoted string, treat it as a
- subsegment number. */
-
-void
-obj_coff_section (int ignore ATTRIBUTE_UNUSED)
-{
- /* Strip out the section name. */
- char *section_name, *name;
- char c;
- unsigned int exp;
- long flags;
-
- if (flag_mri)
- {
- char type;
-
- s_mri_sect (&type);
- flags = 0;
- if (type == 'C')
- flags = STYP_TEXT;
- else if (type == 'D')
- flags = STYP_DATA;
- segment_info[now_seg].scnhdr.s_flags |= flags;
-
- return;
- }
-
- section_name = input_line_pointer;
- c = get_symbol_end ();
-
- name = xmalloc (input_line_pointer - section_name + 1);
- strcpy (name, section_name);
-
- *input_line_pointer = c;
-
- exp = 0;
- flags = 0;
-
- SKIP_WHITESPACE ();
- if (*input_line_pointer == ',')
- {
- ++input_line_pointer;
- SKIP_WHITESPACE ();
-
- if (*input_line_pointer != '"')
- exp = get_absolute_expression ();
- else
- {
- ++input_line_pointer;
- while (*input_line_pointer != '"'
- && ! is_end_of_line[(unsigned char) *input_line_pointer])
- {
- switch (*input_line_pointer)
- {
- case 'b': flags |= STYP_BSS; break;
- case 'i': flags |= STYP_INFO; break;
- case 'l': flags |= STYP_LIB; break;
- case 'n': flags |= STYP_NOLOAD; break;
- case 'o': flags |= STYP_OVER; break;
- case 'd':
- case 'w': flags |= STYP_DATA; break;
- case 'x': flags |= STYP_TEXT; break;
- case 'r': flags |= STYP_LIT; break;
- default:
- as_warn (_("unknown section attribute '%c'"),
- *input_line_pointer);
- break;
- }
- ++input_line_pointer;
- }
- if (*input_line_pointer == '"')
- ++input_line_pointer;
- }
- }
-
- subseg_new (name, (subsegT) exp);
-
- segment_info[now_seg].scnhdr.s_flags |= flags;
-
- demand_empty_rest_of_line ();
-}
-
-static void
-obj_coff_text (int ignore ATTRIBUTE_UNUSED)
-{
- subseg_new (".text", get_absolute_expression ());
-}
-
-static void
-obj_coff_data (int ignore ATTRIBUTE_UNUSED)
-{
- if (flag_readonly_data_in_text)
- subseg_new (".text", get_absolute_expression () + 1000);
- else
- subseg_new (".data", get_absolute_expression ());
-}
-
-static void
-obj_coff_ident (int ignore ATTRIBUTE_UNUSED)
-{
- segT current_seg = now_seg; /* Save current seg. */
- subsegT current_subseg = now_subseg;
-
- subseg_new (".comment", 0); /* .comment seg. */
- stringer (1); /* Read string. */
- subseg_set (current_seg, current_subseg); /* Restore current seg. */
-}
-
-void
-c_dot_file_symbol (const char *filename, int appfile ATTRIBUTE_UNUSED)
-{
- symbolS *symbolP;
-
- symbolP = symbol_new (".file", SEG_DEBUG, 0, & zero_address_frag);
-
- S_SET_STORAGE_CLASS (symbolP, C_FILE);
- S_SET_NUMBER_AUXILIARY (symbolP, 1);
-
- if (strlen (filename) > FILNMLEN)
- {
- /* Filename is too long to fit into an auxent,
- we stick it into the string table instead. We keep
- a linked list of the filenames we find so we can emit
- them later. */
- struct filename_list *f = xmalloc (sizeof (* f));
-
- f->filename = filename;
- f->next = 0;
-
- SA_SET_FILE_FNAME_ZEROS (symbolP, 0);
- SA_SET_FILE_FNAME_OFFSET (symbolP, 1);
-
- if (filename_list_tail)
- filename_list_tail->next = f;
- else
- filename_list_head = f;
- filename_list_tail = f;
- }
- else
- SA_SET_FILE_FNAME (symbolP, filename);
-
-#ifndef NO_LISTING
- {
- extern int listing;
- if (listing)
- listing_source_file (filename);
- }
-#endif
-
- SF_SET_DEBUG (symbolP);
- S_SET_VALUE (symbolP, (valueT) previous_file_symbol);
-
- previous_file_symbol = symbolP;
-
- /* Make sure that the symbol is first on the symbol chain. */
- if (symbol_rootP != symbolP)
- {
- symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
- symbol_insert (symbolP, symbol_rootP, &symbol_rootP, &symbol_lastP);
- }
-}
-
-static void
-obj_coff_lcomm (int ignore ATTRIBUTE_UNUSED)
-{
- s_lcomm (0);
- return;
-}
-
-/* The first entry in a .stab section is special. */
-
-void
-obj_coff_init_stab_section (segT seg)
-{
- char *file;
- char *p;
- char *stabstr_name;
- unsigned int stroff;
-
- /* Make space for this first symbol. */
- p = frag_more (12);
- /* Zero it out. */
- memset (p, 0, 12);
- as_where (&file, (unsigned int *) NULL);
- stabstr_name = alloca (strlen (segment_info[seg].name) + 4);
- strcpy (stabstr_name, segment_info[seg].name);
- strcat (stabstr_name, "str");
- stroff = get_stab_string_offset (file, stabstr_name);
- know (stroff == 1);
- md_number_to_chars (p, stroff, 4);
-}
-
-#endif /* not BFD_ASSEMBLER */
-
-const pseudo_typeS coff_pseudo_table[] =
-{
- {"ABORT", s_abort, 0},
- {"appline", obj_coff_ln, 1},
- /* We accept the .bss directive for backward compatibility with
- earlier versions of gas. */
- {"bss", obj_coff_bss, 0},
- {"def", obj_coff_def, 0},
- {"dim", obj_coff_dim, 0},
- {"endef", obj_coff_endef, 0},
- {"ident", obj_coff_ident, 0},
- {"line", obj_coff_line, 0},
- {"ln", obj_coff_ln, 0},
- {"scl", obj_coff_scl, 0},
- {"sect", obj_coff_section, 0},
- {"sect.s", obj_coff_section, 0},
- {"section", obj_coff_section, 0},
- {"section.s", obj_coff_section, 0},
- /* FIXME: We ignore the MRI short attribute. */
- {"size", obj_coff_size, 0},
- {"tag", obj_coff_tag, 0},
- {"type", obj_coff_type, 0},
- {"val", obj_coff_val, 0},
- {"version", s_ignore, 0},
-#ifdef BFD_ASSEMBLER
- {"loc", obj_coff_loc, 0},
- {"optim", s_ignore, 0}, /* For sun386i cc (?) */
- {"weak", obj_coff_weak, 0},
-#else
- {"data", obj_coff_data, 0},
- {"lcomm", obj_coff_lcomm, 0},
- {"text", obj_coff_text, 0},
- {"use", obj_coff_section, 0},
-#endif
-#if defined TC_M88K || defined TC_TIC4X
- /* The m88k and tic4x uses sdef instead of def. */
- {"sdef", obj_coff_def, 0},
-#endif
- {NULL, NULL, 0}
-};
-\f
-#ifdef BFD_ASSEMBLER
-
-/* Support for a COFF emulation. */
-
-static void
-coff_pop_insert (void)
-{
- pop_insert (coff_pseudo_table);
-}
-
-static int
-coff_separate_stab_sections (void)
-{
- return 1;
-}
-
-const struct format_ops coff_format_ops =
+const struct format_ops coff_format_ops =
{
bfd_target_coff_flavour,
0, /* dfl_leading_underscore */
coff_pop_insert,
0, /* ecoff_set_ext */
coff_obj_read_begin_hook,
- coff_obj_symbol_new_hook
+ coff_obj_symbol_new_hook,
+ coff_obj_symbol_clone_hook,
+ coff_adjust_symtab
};
-
-#endif
projects / deliverable / binutils-gdb.git / blobdiff