-/* Read AIXcoff symbol tables and convert to internal format, for GDB.
- Copyright (C) 1986-1991 Free Software Foundation, Inc.
+/* Read AIX xcoff symbol tables and convert to internal format, for GDB.
+ Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993
+ Free Software Foundation, Inc.
Derived from coffread.c, dbxread.c, and a lot of hacking.
Contributed by IBM Corporation.
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+/* Native only: Need struct tbtable in <sys/debug.h> from host, and
+ need xcoff_add_toc_to_loadinfo in rs6000-tdep.c from target.
+ need xcoff_init_loadinfo ditto.
+ However, if you grab <sys/debug.h> and make it available on your
+ host, and define FAKING_RS6000, then this code will compile. */
+
#include "defs.h"
#include "bfd.h"
-#ifdef IBM6000_HOST
-/* Native only: Need struct tbtable in <sys/debug.h>. */
-
-/* AIX COFF names have a preceeding dot `.' */
+/* AIX XCOFF names have a preceeding dot `.' */
#define NAMES_HAVE_DOT 1
#include <sys/types.h>
#include "buildsym.h"
#include "stabsread.h"
#include "gdb-stabs.h"
+#include "complaints.h"
#include "coff/internal.h" /* FIXME, internal data from BFD */
#include "libcoff.h" /* FIXME, internal data from BFD */
static unsigned local_symesz;
-
-/* coff_symfile_init()
- is the coff-specific initialization routine for reading symbols.
- It is passed a struct sym_fns which contains, among other things,
- the BFD for the file whose symbols are being read, and a slot for
- a pointer to "private data" which we fill with cookies and other
- treats for coff_symfile_read().
-
- We will only be called if this is a COFF or COFF-like file.
- BFD handles figuring out the format of the file, and code in symtab.c
- uses BFD's determination to vector to us.
-
- The ultimate result is a new symtab (or, FIXME, eventually a psymtab). */
-
struct coff_symfile_info {
file_ptr min_lineno_offset; /* Where in file lowest line#s are */
file_ptr max_lineno_offset; /* 1+last byte of line#s in file */
};
+static struct complaint rsym_complaint =
+ {"Non-stab C_RSYM `%s' needs special handling", 0, 0};
+
+static struct complaint storclass_complaint =
+ {"Unexpected storage class: %d", 0, 0};
+
+static struct complaint bf_notfound_complaint =
+ {"line numbers off, `.bf' symbol not found", 0, 0};
static void
enter_line_range PARAMS ((struct subfile *, unsigned, unsigned,
init_debugsection PARAMS ((bfd *));
static int
-init_stringtab PARAMS ((bfd *, long, struct objfile *));
+init_stringtab PARAMS ((bfd *, file_ptr, struct objfile *));
static void
-aixcoff_symfile_init PARAMS ((struct objfile *));
+xcoff_symfile_init PARAMS ((struct objfile *));
static void
-aixcoff_new_init PARAMS ((struct objfile *));
+xcoff_new_init PARAMS ((struct objfile *));
+#ifdef __STDC__
struct section_offset;
+#endif
static void
-aixcoff_symfile_read PARAMS ((struct objfile *, struct section_offset *, int));
+xcoff_symfile_read PARAMS ((struct objfile *, struct section_offset *, int));
static void
-aixcoff_symfile_finish PARAMS ((struct objfile *));
+xcoff_symfile_finish PARAMS ((struct objfile *));
static struct section_offsets *
-aixcoff_symfile_offsets PARAMS ((struct objfile *, CORE_ADDR));
+xcoff_symfile_offsets PARAMS ((struct objfile *, CORE_ADDR));
static int
-init_lineno PARAMS ((bfd *, long, int));
+init_lineno PARAMS ((bfd *, file_ptr, int));
static void
find_linenos PARAMS ((bfd *, sec_ptr, PTR));
/* Names that are less should come first. */
register struct symbol **s1 = (struct symbol **) s1p;
register struct symbol **s2 = (struct symbol **) s2p;
- register int namediff = strcmp (SYMBOL_NAME (*s1), SYMBOL_NAME (*s2));
+ register int namediff = STRCMP (SYMBOL_NAME (*s1), SYMBOL_NAME (*s2));
if (namediff != 0)
return namediff;
pp += 2;
if (*(pp-1) == 'F' || *(pp-1) == 'f')
- SYMBOL_TYPE (sym) = lookup_function_type (read_type (&pp));
+ SYMBOL_TYPE (sym) = lookup_function_type (read_type (&pp, objfile));
else
SYMBOL_TYPE (sym) = read_type (&pp, objfile);
}
record_include_begin (cs)
struct coff_symbol *cs;
{
- /* In aixcoff, we assume include files cannot be nested (not in .c files
+ /* In xcoff, we assume include files cannot be nested (not in .c files
of course, but in corresponding .s files.) */
if (inclDepth)
- fatal ("aix internal: pending include file exists.");
+ fatal ("xcoff internal: pending include file exists.");
++inclDepth;
InclTable *pTbl;
if (inclDepth == 0)
- fatal ("aix internal: Mismatch C_BINCL/C_EINCL pair found.");
+ fatal ("xcoff internal: Mismatch C_BINCL/C_EINCL pair found.");
pTbl = &inclTable [inclIndx];
pTbl->end = cs->c_value;
/* start_subfile (inclTable[ii].name, (char*)0); */
start_subfile (" ?", (char*)0);
- current_subfile->name =
- obsavestring (inclTable[ii].name, strlen (inclTable[ii].name),
- ¤t_objfile->symbol_obstack);
+ free (current_subfile->name);
+ current_subfile->name = strdup (inclTable[ii].name);
if (lv == lineTb) {
current_subfile->line_vector = (struct linetable *)
}
-/* A parameter template, used by ADD_PARM_TO_PENDING. */
+/* A parameter template, used by ADD_PARM_TO_PENDING. It is initialized
+ in our initializer function at the bottom of the file, to avoid
+ dependencies on the exact "struct symbol" format. */
-static struct symbol parmsym = { /* default parameter symbol */
- "", /* name */
- VAR_NAMESPACE, /* namespace */
- LOC_ARG, /* class */
- NULL, /* type */
- 0, /* line number */
- 0, /* value */
-};
+static struct symbol parmsym;
/* Add a parameter to a given pending symbol list. */
}
-/* aixcoff has static blocks marked in `.bs', `.es' pairs. They cannot be
+/* xcoff has static blocks marked in `.bs', `.es' pairs. They cannot be
nested. At any given time, a symbol can only be in one static block.
This is the base address of current static block, zero if non exists. */
/* READ_ONE_SYMBOL (symbol, cs, symname_alloced); */
/* read one symbol into `cs' structure. After processing the whole symbol
table, only string table will be kept in memory, symbol table and debug
- section of aixcoff will be freed. Thus we can mark symbols with names
+ section of xcoff will be freed. Thus we can mark symbols with names
in string table as `alloced'. */
{
int ii;
/* Recording this entry is necessary. Single stepping relies on
this vector to get an idea about function address boundaries. */
- prim_record_minimal_symbol (0, cs->c_value, mst_unknown);
+ prim_record_minimal_symbol ("<trampoline>", cs->c_value,
+ mst_unknown);
#else
/* record trampoline code entries as mst_unknown symbol. When we
case C_FCN:
- if (strcmp (cs->c_name, ".bf") == 0) {
+ if (STREQ (cs->c_name, ".bf")) {
bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass,
main_aux);
(fcn_cs_saved.c_value, fcn_stab_saved.c_name, 0, 0, objfile);
#endif
}
- else if (strcmp (cs->c_name, ".ef") == 0) {
+ else if (STREQ (cs->c_name, ".ef")) {
bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass,
main_aux);
break;
case C_BLOCK :
- if (strcmp (cs->c_name, ".bb") == 0) {
+ if (STREQ (cs->c_name, ".bb")) {
depth++;
new = push_context (depth, cs->c_value);
}
- else if (strcmp (cs->c_name, ".eb") == 0) {
+ else if (STREQ (cs->c_name, ".eb")) {
new = pop_context ();
if (depth != new->depth)
error ("Invalid symbol data: .bb/.eb symbol mismatch at symbol %d.",
If no XMC_TC0 is found, toc_offset should be zero. Another place to obtain
this information would be file auxiliary header. */
+#ifndef FAKING_RS6000
xcoff_add_toc_to_loadinfo (toc_offset);
+#endif
}
#define SYMBOL_DUP(SYMBOL1, SYMBOL2) \
obsavestring (name, qq-name,
&objfile->symbol_obstack);
}
- ttype = SYMBOL_TYPE (sym) = read_type (&pp);
+ ttype = SYMBOL_TYPE (sym) = read_type (&pp, objfile);
/* if there is no name for this typedef, you don't have to keep its
symbol, since nobody could ask for it. Otherwise, build a symbol
break;
case C_RSYM:
-
-#ifdef NO_DEFINE_SYMBOL
pp = (char*) strchr (name, ':');
+#ifdef NO_DEFINE_SYMBOL
SYMBOL_CLASS (sym) = LOC_REGISTER;
SYMBOL_VALUE (sym) = STAB_REG_TO_REGNUM (cs->c_value);
if (pp) {
return sym;
}
else {
- warning ("A non-stab C_RSYM needs special handling.");
+ complain (&rsym_complaint, name);
return NULL;
}
#endif
default :
- warning ("Unexpected storage class: %d.", cs->c_sclass);
+ complain (&storclass_complaint, cs->c_sclass);
return NULL;
}
}
for (ii = 0; ii < 50; ii++) {
bfd_coff_swap_sym_in (symfile_bfd,
symtable + (symno*local_symesz), symbol);
- if (symbol->n_sclass == C_FCN && 0 == strcmp (symbol->n_name, ".bf"))
+ if (symbol->n_sclass == C_FCN && STREQ (symbol->n_name, ".bf"))
goto gotit;
symno += symbol->n_numaux+1;
}
- printf ("GDB Error: `.bf' not found.\n");
+ complain (&bf_notfound_complaint);
return 0;
gotit:
count = asect->lineno_count;
- if (strcmp (asect->name, ".text") || count == 0)
+ if (!STREQ (asect->name, ".text") || count == 0)
return;
size = count * coff_data (symfile_bfd)->local_linesz;
static int
init_lineno (abfd, offset, size)
bfd *abfd;
- long offset;
+ file_ptr offset;
int size;
{
int val;
- if (bfd_seek(abfd, offset, 0) < 0)
+ if (bfd_seek(abfd, offset, L_SET) < 0)
return -1;
linetab = (char *) xmalloc(size);
(a \ at the end of the text of a name)
call this function to get the continuation. */
/* So far, I haven't seen this happenning xlc output. I doubt we'll need this
- for aixcoff. */
+ for xcoff. */
#undef next_symbol_text
#define next_symbol_text() \
printf ("Gdb Error: symbol names on multiple lines not implemented.\n")
-/* xlc/dbx combination uses a set of builtin types, starting from -1. return
- the proper type node fora given builtin type #. */
-
-struct type *
-builtin_type (pp)
-char **pp;
-{
- int typenums[2];
-
- if (**pp != '-') {
- printf ("ERROR!, unknown built-in type!\n");
- return NULL;
- }
- *pp += 1;
- read_type_number (pp, typenums);
-
- /* default types are defined in dbxstclass.h. */
- switch ( typenums[1] ) {
- case 1:
- return lookup_fundamental_type (current_objfile, FT_INTEGER);
- case 2:
- return lookup_fundamental_type (current_objfile, FT_CHAR);
- case 3:
- return lookup_fundamental_type (current_objfile, FT_SHORT);
- case 4:
- return lookup_fundamental_type (current_objfile, FT_LONG);
- case 5:
- return lookup_fundamental_type (current_objfile, FT_UNSIGNED_CHAR);
- case 6:
- return lookup_fundamental_type (current_objfile, FT_SIGNED_CHAR);
- case 7:
- return lookup_fundamental_type (current_objfile, FT_UNSIGNED_SHORT);
- case 8:
- return lookup_fundamental_type (current_objfile, FT_UNSIGNED_INTEGER);
- case 9:
- return lookup_fundamental_type (current_objfile, FT_UNSIGNED_INTEGER);
- case 10:
- return lookup_fundamental_type (current_objfile, FT_UNSIGNED_LONG);
- case 11:
- return lookup_fundamental_type (current_objfile, FT_VOID);
- case 12:
- return lookup_fundamental_type (current_objfile, FT_FLOAT);
- case 13:
- return lookup_fundamental_type (current_objfile, FT_DBL_PREC_FLOAT);
- case 14:
- return lookup_fundamental_type (current_objfile, FT_EXT_PREC_FLOAT);
- case 15:
- /* requires a builtin `integer' */
- return lookup_fundamental_type (current_objfile, FT_INTEGER);
- case 16:
- return lookup_fundamental_type (current_objfile, FT_BOOLEAN);
- case 17:
- /* requires builtin `short real' */
- return lookup_fundamental_type (current_objfile, FT_FLOAT);
- case 18:
- /* requires builtin `real' */
- return lookup_fundamental_type (current_objfile, FT_FLOAT);
- default :
- printf ("ERROR! Unknown builtin type -%d\n", typenums[1]);
- return NULL;
- }
-}
-
-#if 0 /* Seems to be unused, don't bother converting from old misc function
- vector usage to new minimal symbol tables. FIXME: Delete this? */
-
-/* if we now nothing about a function but its address, make a function symbol
- out of it with the limited knowladge you have. This will be used when
- somebody refers to a function, which doesn't exist in the symbol table,
- but is in the minimal symbol table. */
-
-struct symbol *
-build_function_symbol (ind, objfile)
- int ind;
+static void
+xcoff_new_init (objfile)
struct objfile *objfile;
{
- struct symbol *sym =
- (struct symbol *) obstack_alloc (&objfile->symbol_obstack, sizeof (struct symbol));
- SYMBOL_NAME (sym) = misc_function_vector[ind].name;
- /* SYMBOL_VALUE (sym) = misc_function_vector[ind].address; */
- SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
- SYMBOL_CLASS (sym) = LOC_BLOCK;
- SYMBOL_TYPE (sym) = lookup_function_type (lookup_fundamental_type (current_objfile, FT_INTEGER));
- SYMBOL_BLOCK_VALUE (sym) = (struct block *)
- obstack_alloc (&objfile->symbol_obstack, sizeof (struct block));
- BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) = misc_function_vector[ind].address;
- return sym;
}
-#endif
-static void
-aixcoff_new_init (objfile)
- struct objfile *objfile;
-{
-}
+/* xcoff_symfile_init()
+ is the xcoff-specific initialization routine for reading symbols.
+ It is passed an objfile which contains, among other things,
+ the BFD for the file whose symbols are being read, and a slot for
+ a pointer to "private data" which we fill with cookies and other
+ treats for xcoff_symfile_read().
+
+ We will only be called if this is an XCOFF or XCOFF-like file.
+ BFD handles figuring out the format of the file, and code in symfile.c
+ uses BFD's determination to vector to us.
+
+ The ultimate result is a new symtab (or, FIXME, eventually a psymtab). */
static void
-aixcoff_symfile_init (objfile)
+xcoff_symfile_init (objfile)
struct objfile *objfile;
{
bfd *abfd = objfile->obfd;
objfile struct from the global list of known objfiles. */
static void
-aixcoff_symfile_finish (objfile)
+xcoff_symfile_finish (objfile)
struct objfile *objfile;
{
if (objfile -> sym_private != NULL)
static int
init_stringtab(abfd, offset, objfile)
bfd *abfd;
- long offset;
+ file_ptr offset;
struct objfile *objfile;
{
long length;
int val;
unsigned char lengthbuf[4];
- if (bfd_seek(abfd, offset, 0) < 0)
+ if (bfd_seek(abfd, offset, L_SET) < 0)
return -1;
val = bfd_read((char *)lengthbuf, 1, sizeof lengthbuf, abfd);
}
-/* aixcoff version of symbol file read. */
+/* xcoff version of symbol file read. */
static void
-aixcoff_symfile_read (objfile, section_offset, mainline)
+xcoff_symfile_read (objfile, section_offset, mainline)
struct objfile *objfile;
struct section_offset *section_offset;
int mainline;
{
- int num_symbols; /* # of symbols */
- int symtab_offset; /* symbol table and */
- int stringtab_offset; /* string table file offsets */
+ int num_symbols; /* # of symbols */
+ file_ptr symtab_offset; /* symbol table and */
+ file_ptr stringtab_offset; /* string table file offsets */
int val;
bfd *abfd;
struct coff_symfile_info *info;
/* only read in the line # table if one exists */
val = init_lineno(abfd, info->min_lineno_offset,
- info->max_lineno_offset - info->min_lineno_offset);
+ (int) (info->max_lineno_offset - info->min_lineno_offset));
if (val < 0)
error("\"%s\": error reading line numbers\n", name);
}
/* Position to read the symbol table. Do not read it all at once. */
- val = bfd_seek(abfd, (long)symtab_offset, 0);
+ val = bfd_seek(abfd, symtab_offset, L_SET);
if (val < 0)
perror_with_name(name);
init_minimal_symbol_collection ();
make_cleanup (discard_minimal_symbols, 0);
+#ifndef FAKING_RS6000
/* Initialize load info structure. */
if (mainline)
xcoff_init_loadinfo ();
+#endif
/* Now that the executable file is positioned at symbol table,
process it and define symbols accordingly. */
static
struct section_offsets *
-aixcoff_symfile_offsets (objfile, addr)
+xcoff_symfile_offsets (objfile, addr)
struct objfile *objfile;
CORE_ADDR addr;
{
return section_offsets;
}
-/* Register our ability to parse symbols for aixcoff BFD files. */
+/* Register our ability to parse symbols for xcoff BFD files. */
-static struct sym_fns aixcoff_sym_fns =
+static struct sym_fns xcoff_sym_fns =
{
"aixcoff-rs6000", /* sym_name: name or name prefix of BFD target type */
15, /* sym_namelen: number of significant sym_name chars */
- aixcoff_new_init, /* sym_new_init: init anything gbl to entire symtab */
- aixcoff_symfile_init, /* sym_init: read initial info, setup for sym_read() */
- aixcoff_symfile_read, /* sym_read: read a symbol file into symtab */
- aixcoff_symfile_finish, /* sym_finish: finished with file, cleanup */
- aixcoff_symfile_offsets, /* sym_offsets: xlate offsets ext->int form */
+ xcoff_new_init, /* sym_new_init: init anything gbl to entire symtab */
+ xcoff_symfile_init, /* sym_init: read initial info, setup for sym_read() */
+ xcoff_symfile_read, /* sym_read: read a symbol file into symtab */
+ xcoff_symfile_finish, /* sym_finish: finished with file, cleanup */
+ xcoff_symfile_offsets, /* sym_offsets: xlate offsets ext->int form */
NULL /* next: pointer to next struct sym_fns */
};
void
_initialize_xcoffread ()
{
- add_symtab_fns(&aixcoff_sym_fns);
-}
-
-#else /* IBM6000_HOST */
-struct type *
-builtin_type (ignore)
-char **ignore;
-{
- fatal ("GDB internal error: builtin_type called on non-RS/6000!");
+ add_symtab_fns(&xcoff_sym_fns);
+
+ /* Initialize symbol template later used for arguments. */
+ SYMBOL_NAME (&parmsym) = "";
+ SYMBOL_INIT_LANGUAGE_SPECIFIC (&parmsym, language_c);
+ SYMBOL_NAMESPACE (&parmsym) = VAR_NAMESPACE;
+ SYMBOL_CLASS (&parmsym) = LOC_ARG;
+ /* Its other fields are zero, or are filled in later. */
}
-#endif /* IBM6000_HOST */
projects / binutils.git / blobdiff