/* ECOFF debugging support.
- Copyright (C) 1993 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
Contributed by Cygnus Support.
This file was put together by Ian Lance Taylor <ian@cygnus.com>. A
good deal of it comes directly from mips-tfile.c, by Michael
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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. */
#include "as.h"
array, pointer, function, etc. qualifiers. The
current base types that I have documentation for are:
- btNil -- undefined
+ btNil -- undefined
btAdr -- address - integer same size as ptr
- btChar -- character
- btUChar -- unsigned character
- btShort -- short
- btUShort -- unsigned short
- btInt -- int
- btUInt -- unsigned int
- btLong -- long
- btULong -- unsigned long
- btFloat -- float (real)
- btDouble -- Double (real)
- btStruct -- Structure (Record)
- btUnion -- Union (variant)
- btEnum -- Enumerated
- btTypedef -- defined via a typedef isymRef
- btRange -- subrange of int
- btSet -- pascal sets
- btComplex -- fortran complex
- btDComplex -- fortran double complex
- btIndirect -- forward or unnamed typedef
- btFixedDec -- Fixed Decimal
- btFloatDec -- Float Decimal
- btString -- Varying Length Character String
- btBit -- Aligned Bit String
+ btChar -- character
+ btUChar -- unsigned character
+ btShort -- short
+ btUShort -- unsigned short
+ btInt -- int
+ btUInt -- unsigned int
+ btLong -- long
+ btULong -- unsigned long
+ btFloat -- float (real)
+ btDouble -- Double (real)
+ btStruct -- Structure (Record)
+ btUnion -- Union (variant)
+ btEnum -- Enumerated
+ btTypedef -- defined via a typedef isymRef
+ btRange -- subrange of int
+ btSet -- pascal sets
+ btComplex -- fortran complex
+ btDComplex -- fortran double complex
+ btIndirect -- forward or unnamed typedef
+ btFixedDec -- Fixed Decimal
+ btFloatDec -- Float Decimal
+ btString -- Varying Length Character String
+ btBit -- Aligned Bit String
btPicture -- Picture
btVoid -- Void (MIPS cc revision >= 2.00)
current type qualifier fields I have documentation for
are:
- tqNil -- no more qualifiers
- tqPtr -- pointer
- tqProc -- procedure
- tqArray -- array
- tqFar -- 8086 far pointers
- tqVol -- volatile
+ tqNil -- no more qualifiers
+ tqPtr -- pointer
+ tqProc -- procedure
+ tqArray -- array
+ tqFar -- 8086 far pointers
+ tqVol -- volatile
The dense number table is used in the front ends, and disappears by
}
Mips-tdump produces the following information:
-
+
Global file header:
magic number 0x162
# sections 2
symbolic header size 96
optional header 56
flags 0x0
-
+
Symbolic header, magic number = 0x7009, vstamp = 1.31:
-
+
Info Offset Number Bytes
==== ====== ====== =====
-
+
Line numbers 380 4 4 [13]
Dense numbers 0 0 0
Procedures Tables 384 1 52
File Tables 1008 2 144
Relative Files 0 0 0
External Symbols 1152 20 320
-
+
File #0, "hello2.c"
-
+
Name index = 1 Readin = No
Merge = No Endian = LITTLE
Debug level = G2 Language = C
Adr = 0x00000000
-
+
Info Start Number Size Offset
==== ===== ====== ==== ======
Local strings 0 15 15 784
Procedures 0 1 52 384
Auxiliary symbols 0 14 56 628
Relative Files 0 0 0 0
-
+
There are 6 local symbols, starting at 436
Symbol# 0: "hello2.c"
#define MAX_CLUSTER_PAGES 63
#endif
-
/* Linked list connecting separate page allocations. */
typedef struct vlinks {
struct vlinks *prev; /* previous set of pages */
typedef struct localsym {
const char *name; /* symbol name */
symbolS *as_sym; /* symbol as seen by gas */
+ bfd_vma addend; /* addend to as_sym value */
struct efdr *file_ptr; /* file pointer */
struct ecoff_proc *proc_ptr; /* proc pointer */
struct localsym *begin_ptr; /* symbol at start of block */
FDR fdr; /* File header to be written out */
FDR *orig_fdr; /* original file header */
char *name; /* filename */
+ int fake; /* whether this is faked .file */
symint_t void_type; /* aux. pointer to 'void' type */
symint_t int_type; /* aux. pointer to 'int' type */
scope_t *cur_scope; /* current nested scopes */
} efdr_t;
/* Pre-initialized extended file structure. */
-static const efdr_t init_file =
+static const efdr_t init_file =
{
{ /* FDR structure */
0, /* adr: memory address of beginning of file */
0, /* rfdBase: index into the file indirect table */
0, /* crfd: count file indirect entries */
langC, /* lang: language for this file */
- 0, /* fMerge: whether this file can be merged */
+ 1, /* fMerge: whether this file can be merged */
0, /* fReadin: true if read in (not just created) */
#ifdef TARGET_BYTES_BIG_ENDIAN
1, /* fBigendian: if 1, compiled on big endian machine */
(FDR *)0, /* orig_fdr: original file header pointer */
(char *)0, /* name: pointer to filename */
+ 0, /* fake: whether this is a faked .file */
0, /* void_type: ptr to aux node for void type */
0, /* int_type: ptr to aux node for int type */
(scope_t *)0, /* cur_scope: current scope being processed */
} lineno_list_t;
static lineno_list_t *first_lineno;
+static lineno_list_t *last_lineno;
static lineno_list_t **last_lineno_ptr = &first_lineno;
/* Sometimes there will be some .loc statements before a .ent. We
/* Keep track of different sized allocation requests. */
static alloc_info_t alloc_counts[ (int)alloc_type_last ];
\f
+/* Record whether we have seen any debugging information. */
+int ecoff_debugging_seen = 0;
+
/* Various statics. */
static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */
+static proc_t *first_proc_ptr = (proc_t *) 0; /* first procedure header */
static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */
static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */
#ifdef ECOFF_DEBUG
#endif
static int stabs_seen = 0; /* != 0 if stabs have been seen */
+static int current_file_idx;
+static const char *current_stabs_filename;
/* Pseudo symbol to use when putting stabs into the symbol table. */
#ifndef STABS_SYMBOL
shash_t **ret_hash));
static localsym_t *add_ecoff_symbol PARAMS ((const char *str, st_t type,
sc_t storage, symbolS *sym,
- symint_t value,
+ bfd_vma addend, symint_t value,
symint_t indx));
static symint_t add_aux_sym_symint PARAMS ((symint_t aux_word));
static symint_t add_aux_sym_rndx PARAMS ((int file_index,
bt_t basic_type));
static void add_unknown_tag PARAMS ((tag_t *ptag));
static void add_procedure PARAMS ((char *func));
-static void add_file PARAMS ((const char *file_name, int indx));
+static void add_file PARAMS ((const char *file_name, int indx, int fake));
#ifdef ECOFF_DEBUG
static char *sc_to_string PARAMS ((sc_t storage_class));
static char *st_to_string PARAMS ((st_t symbol_type));
static unsigned long ecoff_build_fdr
PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
unsigned long offset));
-static unsigned long ecoff_build_ext
- PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
- unsigned long offset, varray_t *ext_strings,
- struct hash_control *ext_str_hash));
+static void ecoff_setup_ext PARAMS ((void));
static page_t *allocate_cluster PARAMS ((unsigned long npages));
static page_t *allocate_page PARAMS ((void));
static scope_t *allocate_scope PARAMS ((void));
static thead_t *allocate_thead PARAMS ((void));
static void free_thead PARAMS ((thead_t *ptr));
static lineno_list_t *allocate_lineno_list PARAMS ((void));
+static void generate_ecoff_stab PARAMS ((int, const char *, int, int, int));
\f
/* This function should be called when the assembler starts up. */
ecoff_symbol_new_hook (symbolP)
symbolS *symbolP;
{
- if (cur_file_ptr == (efdr_t *) NULL)
- add_file ((const char *) NULL, 0);
+ /* Make sure that we have a file pointer, but only if we have seen a
+ file. If we haven't seen a file, then this is a probably special
+ symbol created by md_begin which may required special handling at
+ some point. Creating a dummy file with a dummy name is certainly
+ wrong. */
+ if (cur_file_ptr == (efdr_t *) NULL
+ && seen_at_least_1_file ())
+ add_file ((const char *) NULL, 0, 1);
symbolP->ecoff_file = cur_file_ptr;
symbolP->ecoff_symbol = NULL;
- symbolP->ecoff_undefined = 0;
+ symbolP->ecoff_extern_size = 0;
}
\f
/* Add a page to a varray object. */
/* Add debugging information for a symbol. */
static localsym_t *
-add_ecoff_symbol (str, type, storage, sym_value, value, indx)
+add_ecoff_symbol (str, type, storage, sym_value, addend, value, indx)
const char *str; /* symbol name */
st_t type; /* symbol type */
sc_t storage; /* storage class */
symbolS *sym_value; /* associated symbol. */
+ bfd_vma addend; /* addend to sym_value. */
symint_t value; /* value of symbol */
symint_t indx; /* index to local/aux. syms */
{
psym->as_sym = sym_value;
if (sym_value != (symbolS *) NULL)
sym_value->ecoff_symbol = psym;
+ psym->addend = addend;
psym->file_ptr = cur_file_ptr;
psym->proc_ptr = cur_proc_ptr;
psym->begin_ptr = (localsym_t *) NULL;
ret = vp->num_allocated++;
/* Add bitfield length if it exists.
-
+
NOTE: Mips documentation claims bitfield goes at the end of the
AUX record, but the DECstation compiler emits it here.
(This would only make a difference for enum bitfields.)
st_Block,
sc_Info,
(symbolS *) NULL,
+ (bfd_vma) 0,
(symint_t) 0,
(symint_t) 0);
st_End,
sc_Info,
(symbolS *) NULL,
+ (bfd_vma) 0,
(symint_t) 0,
(symint_t) 0);
{
register varray_t *vp;
register proc_t *new_proc_ptr;
+ symbolS *sym;
#ifdef ECOFF_DEBUG
if (debug)
cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
+ if (first_proc_ptr == (proc_t *) NULL)
+ first_proc_ptr = new_proc_ptr;
+
vp->num_allocated++;
new_proc_ptr->pdr.isym = -1;
new_proc_ptr->pdr.lnLow = -1;
new_proc_ptr->pdr.lnHigh = -1;
+ /* Set the BSF_FUNCTION flag for the symbol. */
+ sym = symbol_find_or_make (func);
+ sym->bsym->flags |= BSF_FUNCTION;
+
/* Push the start of the function. */
new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
- symbol_find_or_make (func),
- (symint_t) 0, (symint_t) 0);
+ sym, (bfd_vma) 0, (symint_t) 0,
+ (symint_t) 0);
++proc_cnt;
l->proc = new_proc_ptr;
*last_lineno_ptr = noproc_lineno;
while (*last_lineno_ptr != NULL)
- last_lineno_ptr = &(*last_lineno_ptr)->next;
+ {
+ last_lineno = *last_lineno_ptr;
+ last_lineno_ptr = &last_lineno->next;
+ }
noproc_lineno = (lineno_list_t *) NULL;
}
}
where the current file structure lives. */
static void
-add_file (file_name, indx)
+add_file (file_name, indx, fake)
const char *file_name; /* file name */
int indx;
+ int fake;
{
register int first_ch;
register efdr_t *fil_ptr;
as_fatal ("fake .file after real one");
as_where (&file, (unsigned int *) NULL);
file_name = (const char *) file;
+
+ if (! symbol_table_frozen)
+ generate_asm_lineno = 1;
}
+ else
+ generate_asm_lineno = 0;
#ifndef NO_LISTING
if (listing)
listing_source_file (file_name);
#endif
+ current_stabs_filename = file_name;
+
/* If we're creating stabs, then we don't actually make a new FDR.
Instead, we just create a stabs symbol. */
if (stabs_seen)
symbol_new ("L0\001", now_seg,
(valueT) frag_now_fix (),
frag_now),
- 0, ECOFF_MARK_STAB (N_SOL));
+ (bfd_vma) 0, 0, ECOFF_MARK_STAB (N_SOL));
return;
}
first_ch = *file_name;
+ /* FIXME: We can't safely merge files which have line number
+ information (fMerge will be zero in this case). Otherwise, we
+ get incorrect line number debugging info. See for instance
+ ecoff_build_lineno, which will end up setting all file->fdr.*
+ fields multiple times, resulting in incorrect debug info. In
+ order to make this work right, all line number and symbol info
+ for the same source file has to be adjacent in the object file,
+ so that a single file descriptor can be used to point to them.
+ This would require maintaining file specific lists of line
+ numbers and symbols for each file, so that they can be merged
+ together (or output together) when two .file pseudo-ops are
+ merged into one file descriptor. */
+
/* See if the file has already been created. */
for (fil_ptr = first_file;
fil_ptr != (efdr_t *) NULL;
fil_ptr = fil_ptr->next_file)
{
if (first_ch == fil_ptr->name[0]
- && strcmp (file_name, fil_ptr->name) == 0)
+ && strcmp (file_name, fil_ptr->name) == 0
+ && fil_ptr->fdr.fMerge)
{
cur_file_ptr = fil_ptr;
+ if (! fake)
+ cur_file_ptr->fake = 0;
break;
}
}
&file_desc.last->datum->file[file_desc.objects_last_page++];
*fil_ptr = init_file;
- fil_ptr->file_index = indx;
+ fil_ptr->file_index = current_file_idx++;
++file_desc.num_allocated;
+ fil_ptr->fake = fake;
+
/* Allocate the string hash table. */
fil_ptr->str_hash = hash_new ();
/* Push the start of the filename. We assume that the filename
will be stored at string offset 1. */
(void) add_ecoff_symbol (file_name, st_File, sc_Text,
- (symbolS *) NULL,
+ (symbolS *) NULL, (bfd_vma) 0,
(symint_t) 0, (symint_t) 0);
fil_ptr->fdr.rss = 1;
fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
hash_yes,
&cur_file_ptr->thash_head[0]);
+ /* gas used to have a bug that if the file does not have any
+ symbol, it either will abort or will not build the file,
+ the following is to get around that problem. ---kung*/
+#if 0
+ if (generate_asm_lineno)
+ {
+ mark_stabs (0);
+ (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
+ symbol_new ("L0\001", now_seg,
+ (valueT) frag_now_fix (),
+ frag_now),
+ (bfd_vma) 0, 0, ECOFF_MARK_STAB (N_SO));
+ (void) add_ecoff_symbol ("void:t1=1", st_Nil, sc_Nil,
+ (symbolS *) NULL, (bfd_vma) 0, 0,
+ ECOFF_MARK_STAB (N_LSYM));
+ }
+#endif
}
}
+
+/* This function is called when the assembler notices a preprocessor
+ directive switching to a new file. This will not happen in
+ compiler output, only in hand coded assembler. */
+
+void
+ecoff_new_file (name)
+ const char *name;
+{
+ if (cur_file_ptr != NULL && strcmp (cur_file_ptr->name, name) == 0)
+ return;
+ add_file (name, 0, 0);
+ generate_asm_lineno = 1;
+}
\f
#ifdef ECOFF_DEBUG
demand_empty_rest_of_line ();
return;
}
-
+
name = input_line_pointer;
name_end = get_symbol_end ();
(void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
symbol_find_or_make (name),
- (symint_t) 0, (symint_t) 0);
+ (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
*input_line_pointer = name_end;
as_warn (".bend directive names unknown symbol");
else
(void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
- (symint_t) 0, (symint_t) 0);
+ (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
*input_line_pointer = name_end;
static int coff_is_function;
static char *coff_tag;
static valueT coff_value;
-symbolS *coff_sym_value;
+static symbolS *coff_sym_value;
+static bfd_vma coff_sym_addend;
static int coff_inside_enumeration;
/* Handle a .def directive: start defining a symbol. */
char *name;
char name_end;
+ ecoff_debugging_seen = 1;
+
SKIP_WHITESPACE ();
name = input_line_pointer;
coff_tag = (char *) NULL;
coff_value = 0;
coff_sym_value = (symbolS *) NULL;
+ coff_sym_addend = 0;
}
*input_line_pointer = name_end;
{
if (tq_ptr == &coff_type.type_qualifiers[0])
{
- as_warn ("Too derived values in .type argument");
+ /* FIXME: We could handle this by setting the continued bit.
+ There would still be a limit: the .type argument can not
+ be infinite. */
+ as_warn ("The type of %s is too complex; it will be simplified",
+ coff_sym_name);
break;
}
if (ISPTR (val))
ecoff_directive_val (ignore)
int ignore;
{
+ expressionS exp;
+
if (coff_sym_name == (char *) NULL)
{
as_warn (".val pseudo-op used outside of .def/.endef; ignored");
return;
}
- if (! is_name_beginner ((unsigned char) *input_line_pointer))
- coff_value = get_absolute_expression ();
- else
+ expression (&exp);
+ if (exp.X_op != O_constant && exp.X_op != O_symbol)
{
- char *name;
- char name_end;
-
- name = input_line_pointer;
- name_end = get_symbol_end ();
-
- if (strcmp (name, ".") == 0)
- as_warn ("`.val .' not supported");
- else
- coff_sym_value = symbol_find_or_make (name);
-
- *input_line_pointer = name_end;
+ as_bad (".val expression is too copmlex");
+ demand_empty_rest_of_line ();
+ return;
+ }
- /* FIXME: gcc can generate address expressions here in unusual
- cases (search for "obscure" in sdbout.c), although this is
- very unlikely for a MIPS chip. */
+ if (exp.X_op == O_constant)
+ coff_value = exp.X_add_number;
+ else
+ {
+ coff_sym_value = exp.X_add_symbol;
+ coff_sym_addend = exp.X_add_number;
}
demand_empty_rest_of_line ();
coff_type.num_sizes = i + 1;
for (i--; i >= 0; i--)
- coff_type.sizes[i] = (coff_type.sizes[i + 1]
- / coff_type.dimensions[i + 1]);
+ coff_type.sizes[i] = (coff_type.dimensions[i + 1] == 0
+ ? 0
+ : (coff_type.sizes[i + 1]
+ / coff_type.dimensions[i + 1]));
}
}
else if (coff_symbol_typ == st_Member
coff_symbol_typ,
coff_storage_class,
coff_sym_value,
+ coff_sym_addend,
(symint_t) coff_value,
indx);
name = input_line_pointer;
name_end = get_symbol_end ();
-
+
ch = *name;
if (! is_name_beginner (ch))
{
if (ent == (symbolS *) NULL)
as_warn (".end directive names unknown symbol");
else
- (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
- symbol_new ("L0\001", now_seg,
- (valueT) frag_now_fix (),
- frag_now),
- (symint_t) 0, (symint_t) 0);
+ {
+ (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
+ symbol_new ("L0\001", now_seg,
+ (valueT) frag_now_fix (),
+ frag_now),
+ (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
+
+ if (stabs_seen && generate_asm_lineno)
+ {
+ char *n;
+
+ n = xmalloc (strlen (name) + 4);
+ strcpy (n, name);
+ strcat (n, ":F1");
+ (void) add_ecoff_symbol ((const char *) n, stGlobal, scText,
+ ent, (bfd_vma) 0, 0,
+ ECOFF_MARK_STAB (N_FUN));
+ }
+ }
cur_proc_ptr = (proc_t *) NULL;
register int ch;
if (cur_file_ptr == (efdr_t *) NULL)
- add_file ((const char *) NULL, 0);
+ add_file ((const char *) NULL, 0, 1);
if (cur_proc_ptr != (proc_t *) NULL)
{
demand_empty_rest_of_line ();
}
\f
+/* Parse .extern directives. */
+
+void
+ecoff_directive_extern (ignore)
+ int ignore;
+{
+ char *name;
+ int c;
+ symbolS *symbolp;
+ valueT size;
+
+ name = input_line_pointer;
+ c = get_symbol_end ();
+ symbolp = symbol_find_or_make (name);
+ *input_line_pointer = c;
+
+ S_SET_EXTERNAL (symbolp);
+
+ if (*input_line_pointer == ',')
+ ++input_line_pointer;
+ size = get_absolute_expression ();
+
+ symbolp->ecoff_extern_size = size;
+}
+\f
/* Parse .file directives. */
void
/* FIXME: we don't have to save the name here. */
name = demand_copy_C_string (&len);
- add_file (name, indx - 1);
+ add_file (name, indx - 1, 0);
demand_empty_rest_of_line ();
}
cur_proc_ptr->pdr.pcreg = tc_get_register (0);
+#if 0 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according
+ to Sandro. I don't yet know where this value should be stored, if
+ anywhere. */
demand_empty_rest_of_line ();
+#else
+ s_ignore (42);
+#endif
}
\f
/* Parse .mask directives. */
symbol_new ("L0\001", now_seg,
(valueT) frag_now_fix (),
frag_now),
- 0, lineno);
+ (bfd_vma) 0, 0, lineno);
return;
}
list->paddr = frag_now_fix ();
list->lineno = lineno;
+ /* We don't want to merge files which have line numbers. */
+ cur_file_ptr->fdr.fMerge = 0;
+
/* A .loc directive will sometimes appear before a .ent directive,
which means that cur_proc_ptr will be NULL here. Arrange to
patch this up. */
}
else
{
+ last_lineno = list;
*last_lineno_ptr = list;
last_lineno_ptr = &list->next;
}
}
+
+/* The MIPS assembler sometimes inserts nop instructions in the
+ instruction stream. When this happens, we must patch up the .loc
+ information so that it points to the instruction after the nop. */
+
+void
+ecoff_fix_loc (old_frag, old_frag_offset)
+ fragS *old_frag;
+ unsigned long old_frag_offset;
+{
+ if (last_lineno != NULL
+ && last_lineno->frag == old_frag
+ && last_lineno->paddr == old_frag_offset)
+ {
+ last_lineno->frag = frag_now;
+ last_lineno->paddr = frag_now_fix ();
+ }
+}
\f
/* Make sure the @stabs symbol is emitted. */
stabs_seen = 1;
(void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
(symbolS *) NULL,
- (symint_t) -1, ECOFF_MARK_STAB (0));
+ (bfd_vma) 0, (symint_t) -1,
+ ECOFF_MARK_STAB (0));
}
}
\f
+/* Parse .weakext directives. */
+
+void
+ecoff_directive_weakext (ignore)
+ int ignore;
+{
+ char *name;
+ int c;
+ symbolS *symbolP;
+ expressionS exp;
+
+ name = input_line_pointer;
+ c = get_symbol_end ();
+ symbolP = symbol_find_or_make (name);
+ *input_line_pointer = c;
+
+ SKIP_WHITESPACE ();
+
+ if (*input_line_pointer == ',')
+ {
+ if (S_IS_DEFINED (symbolP))
+ {
+ as_bad ("Ignoring attempt to redefine symbol `%s'.",
+ S_GET_NAME (symbolP));
+ ignore_rest_of_line ();
+ return;
+ }
+
+ ++input_line_pointer;
+ SKIP_WHITESPACE ();
+ if (! is_end_of_line[(unsigned char) *input_line_pointer])
+ {
+ expression (&exp);
+ if (exp.X_op != O_symbol)
+ {
+ as_bad ("bad .weakext directive");
+ ignore_rest_of_line();
+ return;
+ }
+ symbolP->sy_value = exp;
+ }
+ }
+
+ S_SET_WEAK (symbolP);
+
+ demand_empty_rest_of_line ();
+}
+\f
/* Handle .stabs directives. The actual parsing routine is done by a
generic routine. This routine is called via OBJ_PROCESS_STAB.
When this is called, input_line_pointer will be pointing at the
value a numeric value or an address. */
void
-ecoff_stab (what, string, type, other, desc)
+ecoff_stab (sec, what, string, type, other, desc)
+ segT sec;
int what;
const char *string;
int type;
efdr_t *save_file_ptr = cur_file_ptr;
symbolS *sym;
symint_t value;
+ bfd_vma addend;
st_t st;
sc_t sc;
symint_t indx;
+ localsym_t *hold = NULL;
+
+ ecoff_debugging_seen = 1;
/* We don't handle .stabd. */
if (what != 's' && what != 'n')
/* Make sure we have a current file. */
if (cur_file_ptr == (efdr_t *) NULL)
{
- add_file ((const char *) NULL, 0);
+ add_file ((const char *) NULL, 0, 1);
save_file_ptr = cur_file_ptr;
}
*input_line_pointer = name_end;
value = 0;
+ addend = 0;
st = st_Label;
sc = sc_Text;
indx = desc;
if (listing && (type == N_SO || type == N_SOL))
listing_source_file (string);
#endif
-
+
if (isdigit (*input_line_pointer)
|| *input_line_pointer == '-'
|| *input_line_pointer == '+')
sc = sc_Nil;
sym = (symbolS *) NULL;
value = get_absolute_expression ();
+ addend = 0;
}
else if (! is_name_beginner ((unsigned char) *input_line_pointer))
{
}
else
{
- char *name;
- char name_end;
-
- name = input_line_pointer;
- name_end = get_symbol_end ();
-
- sym = symbol_find_or_make (name);
+ expressionS exp;
sc = sc_Nil;
st = st_Nil;
- value = 0;
- *input_line_pointer = name_end;
- if (name_end == '+' || name_end == '-')
+ expression (&exp);
+ if (exp.X_op == O_constant)
+ {
+ sym = NULL;
+ value = exp.X_add_number;
+ addend = 0;
+ }
+ else if (exp.X_op == O_symbol)
+ {
+ sym = exp.X_add_symbol;
+ value = 0;
+ addend = exp.X_add_number;
+ }
+ else
{
- ++input_line_pointer;
- value = get_absolute_expression ();
- if (name_end == '-')
- value = - value;
+ sym = make_expr_symbol (&exp);
+ value = 0;
+ addend = 0;
}
}
indx = ECOFF_MARK_STAB (type);
}
- (void) add_ecoff_symbol (string, st, sc, sym, value, indx);
+ /* Don't store the stabs symbol we are creating as the type of the
+ ECOFF symbol. We want to compute the type of the ECOFF symbol
+ independently. */
+ if (sym != (symbolS *) NULL)
+ hold = sym->ecoff_symbol;
+
+ (void) add_ecoff_symbol (string, st, sc, sym, addend, value, indx);
+
+ if (sym != (symbolS *) NULL)
+ sym->ecoff_symbol = hold;
/* Restore normal file type. */
cur_file_ptr = save_file_ptr;
}
\f
+/* Frob an ECOFF symbol. Small common symbols go into a special
+ .scommon section rather than bfd_com_section. */
+
+void
+ecoff_frob_symbol (sym)
+ symbolS *sym;
+{
+ if (S_IS_COMMON (sym)
+ && S_GET_VALUE (sym) > 0
+ && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput))
+ {
+ static asection scom_section;
+ static asymbol scom_symbol;
+
+ /* We must construct a fake section similar to bfd_com_section
+ but with the name .scommon. */
+ if (scom_section.name == NULL)
+ {
+ scom_section = bfd_com_section;
+ scom_section.name = ".scommon";
+ scom_section.output_section = &scom_section;
+ scom_section.symbol = &scom_symbol;
+ scom_section.symbol_ptr_ptr = &scom_section.symbol;
+ scom_symbol = *bfd_com_section.symbol;
+ scom_symbol.name = ".scommon";
+ scom_symbol.section = &scom_section;
+ }
+ S_SET_SEGMENT (sym, &scom_section);
+ }
+
+ /* Double check weak symbols. */
+ if (sym->bsym->flags & BSF_WEAK)
+ {
+ if (S_IS_COMMON (sym))
+ as_bad ("Symbol `%s' can not be both weak and common",
+ S_GET_NAME (sym));
+ }
+}
+\f
/* Add bytes to the symbolic information buffer. */
static char *
unsigned long c;
long iline;
long totcount;
+ lineno_list_t first;
if (linecntptr != (long *) NULL)
*linecntptr = 0;
c = offset;
iline = 0;
totcount = 0;
+
+ /* For some reason the address of the first procedure is ignored
+ when reading line numbers. This doesn't matter if the address of
+ the first procedure is 0, but when gcc is generating MIPS
+ embedded PIC code, it will put strings in the .text section
+ before the first procedure. We cope by inserting a dummy line if
+ the address of the first procedure is not 0. Hopefully this
+ won't screw things up too badly. */
+ if (first_proc_ptr != (proc_t *) NULL
+ && first_lineno != (lineno_list_t *) NULL
+ && ((S_GET_VALUE (first_proc_ptr->sym->as_sym)
+ + bfd_get_section_vma (stdoutput,
+ S_GET_SEGMENT (first_proc_ptr->sym->as_sym)))
+ != 0))
+ {
+ first.file = first_lineno->file;
+ first.proc = first_lineno->proc;
+ first.frag = &zero_address_frag;
+ first.paddr = 0;
+ first.lineno = 0;
+
+ first.next = first_lineno;
+ first_lineno = &first;
+ }
+
for (l = first_lineno; l != (lineno_list_t *) NULL; l = l->next)
{
long count;
(in words). Do this first, so that we can skip ahead to the
next useful line number entry. */
if (l->next == (lineno_list_t *) NULL)
- count = 0;
- else
+ {
+ /* We want a count of zero, but it will be decremented
+ before it is used. */
+ count = 1;
+ }
+ else if (l->next->frag->fr_address + l->next->paddr
+ > l->frag->fr_address + l->paddr)
{
count = ((l->next->frag->fr_address + l->next->paddr
- (l->frag->fr_address + l->paddr))
>> 2);
- if (count <= 0)
- {
- /* Don't change last, so we still get the right delta. */
- continue;
- }
+ }
+ else
+ {
+ /* Don't change last, so we still get the right delta. */
+ continue;
}
if (l->file != file || l->proc != proc)
if (l->file != file && file != (efdr_t *) NULL)
{
file->fdr.cbLine = c - file->fdr.cbLineOffset;
- /* The cline field is ill-documented. This is a guess
- at the right value. */
file->fdr.cline = totcount + count;
if (linecntptr != (long *) NULL)
*linecntptr += totcount + count;
if (l->file != file)
{
+ efdr_t *last_file = file;
+
file = l->file;
- file->fdr.ilineBase = iline;
+ if (last_file != (efdr_t *) NULL)
+ file->fdr.ilineBase
+ = last_file->fdr.ilineBase + last_file->fdr.cline;
+ else
+ file->fdr.ilineBase = 0;
file->fdr.cbLineOffset = c;
}
if (l->proc != proc)
{
proc->pdr.lnLow = l->lineno;
proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
- /* The iline field is ill-documented. This is a
- guess at the right value. */
proc->pdr.iline = totcount;
}
}
last = (lineno_list_t *) NULL;
- }
+ }
totcount += count;
sym_ptr->ecoff_sym.asym.value =
(S_GET_VALUE (as_sym)
+ bfd_get_section_vma (stdoutput,
- S_GET_SEGMENT (as_sym)));
+ S_GET_SEGMENT (as_sym))
+ + sym_ptr->addend);
+
+ sym_ptr->ecoff_sym.weakext = S_IS_WEAK (as_sym);
/* Set st_Proc to st_StaticProc for local
functions. */
if (sym_ptr->ecoff_sym.asym.st == st_Proc
&& S_IS_DEFINED (as_sym)
- && ! S_IS_EXTERNAL (as_sym))
+ && ! S_IS_EXTERNAL (as_sym)
+ && ! S_IS_WEAK (as_sym))
sym_ptr->ecoff_sym.asym.st = st_StaticProc;
/* Get the type and storage class based on where
seg = S_GET_SEGMENT (as_sym);
segname = segment_name (seg);
- if (S_IS_EXTERNAL (as_sym)
- || ! S_IS_DEFINED (as_sym))
- st = st_Global;
+ if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
+ && (S_IS_EXTERNAL (as_sym)
+ || S_IS_WEAK (as_sym)
+ || ! S_IS_DEFINED (as_sym)))
+ {
+ if ((as_sym->bsym->flags & BSF_FUNCTION) != 0)
+ st = st_Proc;
+ else
+ st = st_Global;
+ }
else if (seg == text_section)
st = st_Label;
else
st = st_Static;
- if (! S_IS_DEFINED (as_sym)
- || as_sym->ecoff_undefined)
+ if (! S_IS_DEFINED (as_sym))
{
- if (S_GET_VALUE (as_sym) > 0
- && (S_GET_VALUE (as_sym)
- <= bfd_get_gp_size (stdoutput)))
- sc = sc_SUndefined;
- else
+ if (as_sym->ecoff_extern_size == 0
+ || (as_sym->ecoff_extern_size
+ > bfd_get_gp_size (stdoutput)))
sc = sc_Undefined;
+ else
+ {
+ sc = sc_SUndefined;
+ sym_ptr->ecoff_sym.asym.value =
+ as_sym->ecoff_extern_size;
+ }
+#ifdef S_SET_SIZE
+ S_SET_SIZE (as_sym, as_sym->ecoff_extern_size);
+#endif
}
else if (S_IS_COMMON (as_sym))
{
else if (seg == &bfd_abs_section)
sc = sc_Abs;
else
- abort ();
+ {
+ /* This must be a user named section.
+ This is not possible in ECOFF, but it
+ is in ELF. */
+ sc = sc_Data;
+ }
sym_ptr->ecoff_sym.asym.st = (int) st;
sym_ptr->ecoff_sym.asym.sc = (int) sc;
than the actual symbol. Should we handle
them here? */
if ((S_IS_EXTERNAL (as_sym)
+ || S_IS_WEAK (as_sym)
|| ! S_IS_DEFINED (as_sym))
&& sym_ptr->proc_ptr == (proc_t *) NULL
&& sym_ptr->ecoff_sym.asym.st != (int) st_Nil
&& ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym))
local = 0;
+ /* This is just an external symbol if it is a
+ common symbol. */
+ if (S_IS_COMMON (as_sym))
+ local = 0;
+
/* If an st_end symbol has an associated gas
symbol, then it is a local label created for
a .bend or .end directive. Stabs line
sym_ptr->ecoff_sym.asym.value =
(S_GET_VALUE (as_sym)
- S_GET_VALUE (begin_ptr->as_sym));
+
+ /* If the size is odd, this is probably a
+ mips16 function; force it to be even. */
+ if ((sym_ptr->ecoff_sym.asym.value & 1) != 0)
+ ++sym_ptr->ecoff_sym.asym.value;
+
+#ifdef S_SET_SIZE
+ S_SET_SIZE (begin_ptr->as_sym,
+ sym_ptr->ecoff_sym.asym.value);
+#endif
}
else if (begin_type == st_Block
&& sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
/* Record the local symbol index and file number in
case this is an external symbol. Note that this
destroys the asym.index field. */
- if (as_sym != (symbolS *) NULL)
+ if (as_sym != (symbolS *) NULL
+ && as_sym->ecoff_symbol == sym_ptr)
{
- if (sym_ptr->ecoff_sym.asym.st == st_Proc
- || sym_ptr->ecoff_sym.asym.st == st_StaticProc)
- {
- know (local);
- sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1;
- }
+ if ((sym_ptr->ecoff_sym.asym.st == st_Proc
+ || sym_ptr->ecoff_sym.asym.st == st_StaticProc)
+ && local)
+ sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1;
sym_ptr->ecoff_sym.ifd = fil_ptr->file_index;
}
}
void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR))
= backend->swap_pdr_out;
char *pdr_out;
- int first_fil;
long iproc;
vlinks_t *file_link;
pdr_out = *buf + offset;
-
- first_fil = 1;
+
iproc = 0;
/* The procedures are stored by file. */
S_GET_SEGMENT (adr_sym)));
if (first)
{
- if (first_fil)
- first_fil = 0;
- else
- fil_ptr->fdr.adr = adr;
+ /* This code used to force the adr of the very
+ first fdr to be 0. However, the native tools
+ don't do that, and I can't remember why it
+ used to work that way, so I took it out. */
+ fil_ptr->fdr.adr = adr;
first = 0;
}
proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
long iaux;
vlinks_t *file_link;
- bigendian = stdoutput->xvec->header_byteorder_big_p;
+ bigendian = bfd_big_endian (stdoutput);
aux_out = (union aux_ext *) (*buf + offset);
-
+
iaux = 0;
/* The aux entries are stored by file. */
switch (aux_ptr->type)
{
case aux_tir:
- ecoff_swap_tir_out (bigendian, &aux_ptr->data.ti,
- &aux_out->a_ti);
+ (*backend->swap_tir_out) (bigendian,
+ &aux_ptr->data.ti,
+ &aux_out->a_ti);
break;
case aux_rndx:
- ecoff_swap_rndx_out (bigendian, &aux_ptr->data.rndx,
- &aux_out->a_rndx);
+ (*backend->swap_rndx_out) (bigendian,
+ &aux_ptr->data.rndx,
+ &aux_out->a_rndx);
break;
case aux_dnLow:
AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
return offset + ifile * external_fdr_size;
}
-/* Swap out the external symbols. These are the symbols that the
- machine independent code has put in the symtab for the BFD. */
+/* Set up the external symbols. These are supposed to be handled by
+ the backend. This routine just gets the right information and
+ calls a backend function to deal with it. */
-static unsigned long
-ecoff_build_ext (backend, buf, bufend, offset, ext_strings, ext_str_hash)
- const struct ecoff_debug_swap *backend;
- char **buf;
- char **bufend;
- unsigned long offset;
- varray_t *ext_strings;
- struct hash_control *ext_str_hash;
+static void
+ecoff_setup_ext ()
{
- const bfd_size_type external_ext_size = backend->external_ext_size;
- void (* const swap_ext_out) PARAMS ((bfd *, const EXTR *, PTR))
- = backend->swap_ext_out;
register symbolS *sym;
- char *ext_out;
- long iext;
- ext_out = *buf + offset;
- iext = 0;
for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
{
if (sym->ecoff_symbol == NULL)
/* If this is a local symbol, then force the fields to zero. */
if (! S_IS_EXTERNAL (sym)
+ && ! S_IS_WEAK (sym)
&& S_IS_DEFINED (sym))
{
sym->ecoff_symbol->ecoff_sym.asym.value = 0;
sym->ecoff_symbol->ecoff_sym.asym.index = indexNil;
}
- sym->ecoff_symbol->ecoff_sym.asym.iss =
- add_string (ext_strings, ext_str_hash, S_GET_NAME (sym),
- (shash_t **) NULL);
- if (*bufend - ext_out < external_ext_size)
- ext_out = ecoff_add_bytes (buf, bufend, ext_out, external_ext_size);
- (*swap_ext_out) (stdoutput, &sym->ecoff_symbol->ecoff_sym, ext_out);
-#ifdef obj_set_sym_index
- obj_set_sym_index (as_sym->bsym, iext);
-#endif
- ext_out += external_ext_size;
- ++iext;
+ obj_ecoff_set_ext (sym, &sym->ecoff_symbol->ecoff_sym);
}
-
- return offset + iext * external_ext_size;
}
-/* Build the ECOFF dbeugging information. */
+/* Build the ECOFF debugging information. */
unsigned long
ecoff_build_debug (hdr, bufp, backend)
char *buf;
char *bufend;
unsigned long offset;
- char *extbuf;
- char *extbufend;
- unsigned long extoffset;
- varray_t ext_strings;
- static varray_t init_ext_strings = INIT_VARRAY (char);
- struct hash_control *ext_str_hash;
/* Make sure we have a file. */
if (first_file == (efdr_t *) NULL)
- add_file ((const char *) NULL, 0);
+ add_file ((const char *) NULL, 0, 1);
/* Handle any top level tags. */
for (ptag = top_tag_head->first_tag;
cur_file_ptr = sym->ecoff_file;
add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
- S_GET_VALUE (sym), indexNil);
+ (bfd_vma) 0, S_GET_VALUE (sym), indexNil);
}
cur_proc_ptr = hold_proc_ptr;
cur_file_ptr = hold_file_ptr;
fil_ptr = fil_ptr->next_file)
{
cur_file_ptr = fil_ptr;
- while (cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
+ while (cur_file_ptr->cur_scope != (scope_t *) NULL
+ && cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
{
cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
- if (! end_warning)
+ if (! end_warning && ! cur_file_ptr->fake)
{
as_warn ("Missing .end or .bend at end of file");
end_warning = 1;
}
}
- (void) add_ecoff_symbol ((const char *) NULL,
- st_End, sc_Text,
- (symbolS *) NULL,
- (symint_t) 0,
- (symint_t) 0);
+ if (cur_file_ptr->cur_scope != (scope_t *) NULL)
+ (void) add_ecoff_symbol ((const char *) NULL,
+ st_End, sc_Text,
+ (symbolS *) NULL,
+ (bfd_vma) 0,
+ (symint_t) 0,
+ (symint_t) 0);
}
/* Build the symbolic information. */
offset = ecoff_build_ss (backend, &buf, &bufend, offset);
hdr->issMax = offset - hdr->cbSsOffset;
- /* Build the external symbols and external strings. We build these
- now because we want to copy out the external strings now. We
- copy out the external symbol information down below. */
- extbuf = xmalloc (PAGE_SIZE);
- extbufend = extbuf + PAGE_SIZE;
- ext_strings = init_ext_strings;
- ext_str_hash = hash_new ();
- extoffset = ecoff_build_ext (backend, &extbuf, &extbufend,
- (unsigned long) 0, &ext_strings,
- ext_str_hash);
-
- /* Copy out the external strings. */
- hdr->cbSsExtOffset = offset;
- offset += ecoff_build_strings (&buf, &bufend, offset, &ext_strings);
- offset = ecoff_padding_adjust (backend, &buf, &bufend, offset,
- (char **) NULL);
- hdr->issExtMax = offset - hdr->cbSsExtOffset;
-
/* We don't use relative file descriptors. */
hdr->crfd = 0;
hdr->cbRfdOffset = 0;
offset = ecoff_build_fdr (backend, &buf, &bufend, offset);
hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
- /* Copy out the external symbols. */
- hdr->cbExtOffset = offset;
- if (bufend - (buf + offset) < extoffset)
- (void) ecoff_add_bytes (&buf, &bufend, buf + offset, extoffset);
- memcpy (buf + offset, extbuf, extoffset);
- offset += extoffset;
- hdr->iextMax = (offset - hdr->cbExtOffset) / backend->external_ext_size;
+ /* Set up the external symbols, which are handled by the BFD back
+ end. */
+ hdr->issExtMax = 0;
+ hdr->cbSsExtOffset = 0;
+ hdr->iextMax = 0;
+ hdr->cbExtOffset = 0;
+ ecoff_setup_ext ();
know ((offset & (backend->debug_align - 1)) == 0);
- hdr->magic = backend->sym_magic;
- /* FIXME: what should hdr->vstamp be? */
+ /* FIXME: This value should be determined from the .verstamp directive,
+ with reasonable defaults in config files. */
+#ifdef TC_ALPHA
+ hdr->vstamp = 0x030b;
+#else
hdr->vstamp = 0x020b;
+#endif
*bufp = buf;
return offset;
return ptr;
}
+void
+ecoff_set_gp_prolog_size (sz)
+ int sz;
+{
+ if (cur_proc_ptr == 0)
+ return;
+
+ cur_proc_ptr->pdr.gp_prologue = sz;
+ if (cur_proc_ptr->pdr.gp_prologue != sz)
+ {
+ as_warn ("GP prologue size exceeds field size, using 0 instead");
+ cur_proc_ptr->pdr.gp_prologue = 0;
+ }
+
+ cur_proc_ptr->pdr.gp_used = 1;
+}
+
+static void
+generate_ecoff_stab (what, string, type, other, desc)
+ int what;
+ const char *string;
+ int type;
+ int other;
+ int desc;
+{
+ efdr_t *save_file_ptr = cur_file_ptr;
+ symbolS *sym;
+ symint_t value;
+ st_t st;
+ sc_t sc;
+ symint_t indx;
+ localsym_t *hold = NULL;
+
+ /* We don't handle .stabd. */
+ if (what != 's' && what != 'n')
+ {
+ as_bad (".stab%c is not supported", what);
+ return;
+ }
+
+ /* We ignore the other field. */
+ if (other != 0)
+ as_warn (".stab%c: ignoring non-zero other field", what);
+
+ /* Make sure we have a current file. */
+ if (cur_file_ptr == (efdr_t *) NULL)
+ {
+ add_file ((const char *) NULL, 0, 1);
+ save_file_ptr = cur_file_ptr;
+ }
+
+ /* For stabs in ECOFF, the first symbol must be @stabs. This is a
+ signal to gdb. */
+ if (stabs_seen == 0)
+ mark_stabs (0);
+
+ /* Line number stabs are handled differently, since they have two
+ values, the line number and the address of the label. We use the
+ index field (aka desc) to hold the line number, and the value
+ field to hold the address. The symbol type is st_Label, which
+ should be different from the other stabs, so that gdb can
+ recognize it. */
+ if (type == N_SLINE)
+ {
+ SYMR dummy_symr;
+
+#ifndef NO_LISTING
+ if (listing)
+ listing_source_line ((unsigned int) desc);
+#endif
+
+ dummy_symr.index = desc;
+ if (dummy_symr.index != desc)
+ {
+ as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
+ desc, what);
+ return;
+ }
+
+ sym = symbol_find_or_make ((char *)string);
+ value = 0;
+ st = st_Label;
+ sc = sc_Text;
+ indx = desc;
+ }
+ else
+ {
+#ifndef NO_LISTING
+ if (listing && (type == N_SO || type == N_SOL))
+ listing_source_file (string);
+#endif
+
+ sym = symbol_find_or_make ((char *)string);
+ sc = sc_Nil;
+ st = st_Nil;
+ value = 0;
+ indx = ECOFF_MARK_STAB (type);
+ }
+
+ /* Don't store the stabs symbol we are creating as the type of the
+ ECOFF symbol. We want to compute the type of the ECOFF symbol
+ independently. */
+ if (sym != (symbolS *) NULL)
+ hold = sym->ecoff_symbol;
+
+ (void) add_ecoff_symbol (string, st, sc, sym, (bfd_vma) 0, value, indx);
+
+ if (sym != (symbolS *) NULL)
+ sym->ecoff_symbol = hold;
+
+ /* Restore normal file type. */
+ cur_file_ptr = save_file_ptr;
+}
+
+int
+ecoff_no_current_file ()
+{
+ return cur_file_ptr == (efdr_t *) NULL;
+}
+
+void
+ecoff_generate_asm_lineno (filename, lineno)
+ const char *filename;
+ int lineno;
+{
+ lineno_list_t *list;
+
+ /* this potential can cause problem, when we start to see stab half the
+ way thru the file */
+/*
+ if (stabs_seen)
+ ecoff_generate_asm_line_stab(filename, lineno);
+*/
+
+ if (current_stabs_filename == (char *)NULL || strcmp (current_stabs_filename, filename))
+ {
+ add_file (filename, 0, 1);
+ generate_asm_lineno = 1;
+ }
+
+ list = allocate_lineno_list ();
+
+ list->next = (lineno_list_t *) NULL;
+ list->file = cur_file_ptr;
+ list->proc = cur_proc_ptr;
+ list->frag = frag_now;
+ list->paddr = frag_now_fix ();
+ list->lineno = lineno;
+
+ /* We don't want to merge files which have line numbers. */
+ cur_file_ptr->fdr.fMerge = 0;
+
+ /* A .loc directive will sometimes appear before a .ent directive,
+ which means that cur_proc_ptr will be NULL here. Arrange to
+ patch this up. */
+ if (cur_proc_ptr == (proc_t *) NULL)
+ {
+ lineno_list_t **pl;
+
+ pl = &noproc_lineno;
+ while (*pl != (lineno_list_t *) NULL)
+ pl = &(*pl)->next;
+ *pl = list;
+ }
+ else
+ {
+ last_lineno = list;
+ *last_lineno_ptr = list;
+ last_lineno_ptr = &list->next;
+ }
+}
+
+static int line_label_cnt = 0;
+void
+ecoff_generate_asm_line_stab (filename, lineno)
+ char *filename;
+ int lineno;
+{
+ char *ll;
+
+ if (strcmp (current_stabs_filename, filename))
+ {
+ add_file (filename, 0, 1);
+ generate_asm_lineno = 1;
+ }
+
+ line_label_cnt++;
+ /* generate local label $LMnn */
+ ll = xmalloc(10);
+ sprintf(ll, "$LM%d", line_label_cnt);
+ colon (ll);
+
+ /* generate stab for the line */
+ generate_ecoff_stab ('n', ll, N_SLINE, 0, lineno);
+
+}
+
#endif /* ECOFF_DEBUGGING */
projects / deliverable / binutils-gdb.git / blobdiff