/* Read AIX xcoff symbol tables and convert to internal format, for GDB.
Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007
- Free Software Foundation, Inc.
+ 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2009,
+ 2010 Free Software Foundation, Inc.
Derived from coffread.c, dbxread.c, and a lot of hacking.
Contributed by IBM Corporation.
#include "coff/xcoff.h"
#include "libxcoff.h"
#include "coff/rs6000.h"
+#include "xcoffread.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "stabsread.h"
#include "expression.h"
#include "complaints.h"
+#include "psympriv.h"
#include "gdb-stabs.h"
{
struct find_targ_sec_arg *args = (struct find_targ_sec_arg *) obj;
struct objfile *objfile = args->objfile;
+
if (sect->target_index == args->targ_index)
{
/* This is the section. Figure out what SECT_OFF_* code it is. */
secnum_to_section (int secnum, struct objfile *objfile)
{
int off = SECT_OFF_TEXT (objfile);
+
asection *sect = NULL;
struct find_targ_sec_arg args;
args.targ_index = secnum;
secnum_to_bfd_section (int secnum, struct objfile *objfile)
{
int off = SECT_OFF_TEXT (objfile);
+
asection *sect = NULL;
struct find_targ_sec_arg args;
args.targ_index = secnum;
{
struct linetable_entry *lte1 = (struct linetable_entry *) lte1p;
struct linetable_entry *lte2 = (struct linetable_entry *) lte2p;
+
return lte1->pc - lte2->pc;
}
for (function_count = 0, ii = 0; ii < oldLineTb->nitems; ++ii)
{
-
if (oldLineTb->item[ii].line == 0)
{ /* function entry found. */
-
if (function_count >= fentry_size)
{ /* make sure you have room. */
fentry_size *= 2;
{
int offset, ii;
file_ptr max_offset =
- ((struct coff_symfile_info *) this_symtab_psymtab->objfile->deprecated_sym_private)
- ->max_lineno_offset;
+ ((struct coff_symfile_info *) this_symtab_psymtab->objfile
+ ->deprecated_sym_private)->max_lineno_offset;
/* subfile structure for the main compilation unit. */
struct subfile main_subfile;
start, 0, &main_source_baseline);
}
- /* Have a new subfile for the include file. */
+ if (strcmp (inclTable[ii].name, last_source_file) == 0)
+ {
+ /* The entry in the include table refers to the main source
+ file. Add the lines to the main subfile. */
+
+ main_source_baseline = inclTable[ii].funStartLine;
+ enter_line_range
+ (&main_subfile, inclTable[ii].begin, inclTable[ii].end,
+ start, 0, &main_source_baseline);
+ inclTable[ii].subfile = &main_subfile;
+ }
+ else
+ {
+ /* Have a new subfile for the include file. */
- tmpSubfile = inclTable[ii].subfile =
- (struct subfile *) xmalloc (sizeof (struct subfile));
+ tmpSubfile = inclTable[ii].subfile =
+ (struct subfile *) xmalloc (sizeof (struct subfile));
- memset (tmpSubfile, '\0', sizeof (struct subfile));
- firstLine = &(inclTable[ii].funStartLine);
+ memset (tmpSubfile, '\0', sizeof (struct subfile));
+ firstLine = &(inclTable[ii].funStartLine);
- /* Enter include file's lines now. */
- enter_line_range (tmpSubfile, inclTable[ii].begin,
- inclTable[ii].end, start, 0, firstLine);
+ /* Enter include file's lines now. */
+ enter_line_range (tmpSubfile, inclTable[ii].begin,
+ inclTable[ii].end, start, 0, firstLine);
+ }
if (offset <= inclTable[ii].end)
offset = inclTable[ii].end + linesz;
for (ii = 0; ii < inclIndx; ++ii)
{
- if ((inclTable[ii].subfile)->line_vector) /* Useless if!!! FIXMEmgo */
+ if (inclTable[ii].subfile != ((struct subfile *) &main_subfile)
+ && (inclTable[ii].subfile)->line_vector) /* Useless if!!! FIXMEmgo */
{
struct linetable *lineTb, *lv;
one when passed to deduce_language_from_filename. Kludge on
top of kludge. */
char *fakename = strrchr (inclTable[ii].name, '.');
+
if (fakename == NULL)
fakename = " ?";
start_subfile (fakename, (char *) 0);
CORE_ADDR startaddr, /* offsets to line table */
CORE_ADDR endaddr, unsigned *firstLine)
{
+ struct objfile *objfile = this_symtab_psymtab->objfile;
+ struct gdbarch *gdbarch = get_objfile_arch (objfile);
unsigned int curoffset;
CORE_ADDR addr;
void *ext_lnno;
return;
curoffset = beginoffset;
limit_offset =
- ((struct coff_symfile_info *) this_symtab_psymtab->objfile->deprecated_sym_private)
+ ((struct coff_symfile_info *) objfile->deprecated_sym_private)
->max_lineno_offset;
if (endoffset != 0)
else
limit_offset -= 1;
- abfd = this_symtab_psymtab->objfile->obfd;
+ abfd = objfile->obfd;
linesz = coff_data (abfd)->local_linesz;
ext_lnno = alloca (linesz);
addr = (int_lnno.l_lnno
? int_lnno.l_addr.l_paddr
: read_symbol_nvalue (int_lnno.l_addr.l_symndx));
- addr += ANOFFSET (this_symtab_psymtab->objfile->section_offsets,
- SECT_OFF_TEXT (this_symtab_psymtab->objfile));
+ addr += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
if (addr < startaddr || (endaddr && addr >= endaddr))
return;
if (int_lnno.l_lnno == 0)
{
*firstLine = read_symbol_lineno (int_lnno.l_addr.l_symndx);
- record_line (subfile, 0, addr);
+ record_line (subfile, 0, gdbarch_addr_bits_remove (gdbarch, addr));
--(*firstLine);
}
else
- record_line (subfile, *firstLine + int_lnno.l_lnno, addr);
+ record_line (subfile, *firstLine + int_lnno.l_lnno,
+ gdbarch_addr_bits_remove (gdbarch, addr));
curoffset += linesz;
}
}
text address for the file, and SIZE is the number of bytes of text. */
#define complete_symtab(name, start_addr) { \
- last_source_file = savestring (name, strlen (name)); \
- last_source_start_addr = start_addr; \
+ last_source_file = xstrdup (name); \
+ last_source_start_addr = start_addr; \
}
#define RECORD_MINIMAL_SYMBOL(NAME, ADDR, TYPE, SECTION, OBJFILE) \
{ \
char *namestr; \
- namestr = (NAME); \
- if (namestr[0] == '.') ++namestr; \
- prim_record_minimal_symbol_and_info (namestr, (ADDR), (TYPE), \
- (char *)NULL, (SECTION), (asection *)NULL, (OBJFILE)); \
- misc_func_recorded = 1; \
+ \
+ namestr = (NAME); \
+ if (namestr[0] == '.') ++namestr; \
+ prim_record_minimal_symbol_and_info (namestr, (ADDR), (TYPE), \
+ (SECTION), (asection *)NULL, \
+ (OBJFILE)); \
+ misc_func_recorded = 1; \
}
{
struct internal_syment symbol;
char *retval;
+
/* FIXME: is this the same as the passed arg? */
if (this_symtab_psymtab)
objfile = this_symtab_psymtab->objfile;
struct objfile *objfile = pst->objfile;
bfd *abfd = objfile->obfd;
char *raw_auxptr; /* Pointer to first raw aux entry for sym */
- char *strtbl = ((struct coff_symfile_info *) objfile->deprecated_sym_private)->strtbl;
+ char *strtbl =
+ ((struct coff_symfile_info *) objfile->deprecated_sym_private)->strtbl;
char *debugsec =
- ((struct coff_symfile_info *) objfile->deprecated_sym_private)->debugsec;
+ ((struct coff_symfile_info *) objfile->deprecated_sym_private)->debugsec;
char *debugfmt = bfd_xcoff_is_xcoff64 (abfd) ? "XCOFF64" : "XCOFF";
struct internal_syment symbol[1];
while (symnum < max_symnum)
{
-
QUIT; /* make this command interruptable. */
/* READ_ONE_SYMBOL (symbol, cs, symname_alloced); */
if (cs->c_name[E_SYMNMLEN - 1] != '\0')
{
char *p;
+
p = obstack_alloc (&objfile->objfile_obstack, E_SYMNMLEN + 1);
strncpy (p, cs->c_name, E_SYMNMLEN);
p[E_SYMNMLEN] = '\0';
switch (cs->c_sclass)
{
-
case C_FILE:
/* c_value field contains symnum of next .file entry in table
break;
case C_FCN:
- if (DEPRECATED_STREQ (cs->c_name, ".bf"))
+ if (strcmp (cs->c_name, ".bf") == 0)
{
CORE_ADDR off = ANOFFSET (objfile->section_offsets,
SECT_OFF_TEXT (objfile));
+
bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass,
0, cs->c_naux, &main_aux);
if (new->name != NULL)
SYMBOL_SECTION (new->name) = SECT_OFF_TEXT (objfile);
}
- else if (DEPRECATED_STREQ (cs->c_name, ".ef"))
+ else if (strcmp (cs->c_name, ".ef") == 0)
{
-
bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass,
0, cs->c_naux, &main_aux);
contains number of lines to '}' */
if (context_stack_depth <= 0)
- { /* We attempted to pop an empty context stack */
+ { /* We attempted to pop an empty context stack */
ef_complaint (cs->c_symnum);
within_function = 0;
break;
break;
case C_BLOCK:
- if (DEPRECATED_STREQ (cs->c_name, ".bb"))
+ if (strcmp (cs->c_name, ".bb") == 0)
{
depth++;
new = push_context (depth,
+ ANOFFSET (objfile->section_offsets,
SECT_OFF_TEXT (objfile))));
}
- else if (DEPRECATED_STREQ (cs->c_name, ".eb"))
+ else if (strcmp (cs->c_name, ".eb") == 0)
{
if (context_stack_depth <= 0)
{ /* We attempted to pop an empty context stack */
#define SYMNAME_ALLOC(NAME, ALLOCED) \
- (ALLOCED) ? (NAME) : obsavestring ((NAME), strlen (NAME), &objfile->objfile_obstack);
+ ((ALLOCED) ? (NAME) : obsavestring ((NAME), strlen (NAME), &objfile->objfile_obstack))
/* process one xcoff symbol. */
will be patched with the type from its stab entry later on in
patch_block_stabs (), unless the file was compiled without -g. */
- DEPRECATED_SYMBOL_NAME (sym) = SYMNAME_ALLOC (name, symname_alloced);
- SYMBOL_TYPE (sym) = builtin_type (current_gdbarch)->nodebug_text_symbol;
+ SYMBOL_SET_LINKAGE_NAME (sym, SYMNAME_ALLOC (name, symname_alloced));
+ SYMBOL_TYPE (sym) = objfile_type (objfile)->nodebug_text_symbol;
SYMBOL_CLASS (sym) = LOC_BLOCK;
SYMBOL_DUP (sym, sym2);
else
{
/* In case we can't figure out the type, provide default. */
- SYMBOL_TYPE (sym) = builtin_type (current_gdbarch)->nodebug_data_symbol;
+ SYMBOL_TYPE (sym) = objfile_type (objfile)->nodebug_data_symbol;
switch (cs->c_sclass)
{
read_symbol (struct internal_syment *symbol, int symno)
{
int nsyms =
- ((struct coff_symfile_info *) this_symtab_psymtab->objfile->deprecated_sym_private)->symtbl_num_syms;
+ ((struct coff_symfile_info *) this_symtab_psymtab->objfile->deprecated_sym_private)->symtbl_num_syms;
char *stbl =
- ((struct coff_symfile_info *) this_symtab_psymtab->objfile->deprecated_sym_private)->symtbl;
+ ((struct coff_symfile_info *) this_symtab_psymtab->objfile->deprecated_sym_private)->symtbl;
+
if (symno < 0 || symno >= nsyms)
{
complaint (&symfile_complaints, _("Invalid symbol offset"));
if (symbol->n_sclass == C_FCN)
{
char *name = xcoff64 ? strtbl + symbol->n_offset : symbol->n_name;
- if (DEPRECATED_STREQ (name, ".bf"))
+
+ if (strcmp (name, ".bf") == 0)
goto gotit;
}
symno += symbol->n_numaux + 1;
count = asect->lineno_count;
- if (!DEPRECATED_STREQ (asect->name, ".text") || count == 0)
+ if (strcmp (asect->name, ".text") != 0 || count == 0)
return;
size = count * coff_data (abfd)->local_linesz;
struct partial_symbol **static_syms)
{
struct partial_symtab *result =
- start_psymtab_common (objfile, objfile->section_offsets,
- filename,
- /* We fill in textlow later. */
- 0,
- global_syms, static_syms);
-
- result->read_symtab_private = (char *)
- obstack_alloc (&objfile->objfile_obstack, sizeof (struct symloc));
+ start_psymtab_common (objfile, objfile->section_offsets,
+ filename,
+ /* We fill in textlow later. */
+ 0,
+ global_syms, static_syms);
+
+ result->read_symtab_private = obstack_alloc (&objfile->objfile_obstack,
+ sizeof (struct symloc));
((struct symloc *) result->read_symtab_private)->first_symnum = first_symnum;
result->read_symtab = xcoff_psymtab_to_symtab;
for (i = 0; i < num_includes; i++)
{
struct partial_symtab *subpst =
- allocate_psymtab (include_list[i], objfile);
+ allocate_psymtab (include_list[i], objfile);
subpst->section_offsets = pst->section_offsets;
- subpst->read_symtab_private =
- (char *) obstack_alloc (&objfile->objfile_obstack,
- sizeof (struct symloc));
+ subpst->read_symtab_private = obstack_alloc (&objfile->objfile_obstack,
+ sizeof (struct symloc));
((struct symloc *) subpst->read_symtab_private)->first_symnum = 0;
((struct symloc *) subpst->read_symtab_private)->numsyms = 0;
subpst->textlow = 0;
sort_pst_symbols (pst);
- /* If there is already a psymtab or symtab for a file of this name,
- remove it. (If there is a symtab, more drastic things also
- happen.) This happens in VxWorks. */
- free_named_symtabs (pst->filename);
-
if (num_includes == 0
&& number_dependencies == 0
&& pst->n_global_syms == 0
/* FIXME: wastes memory for symbols which we don't end up putting
into the minimal symbols. */
char *p;
+
p = obstack_alloc (&objfile->objfile_obstack, E_SYMNMLEN + 1);
strncpy (p, symbol->n_name, E_SYMNMLEN);
p[E_SYMNMLEN] = '\0';
static void
scan_xcoff_symtab (struct objfile *objfile)
{
+ struct gdbarch *gdbarch = get_objfile_arch (objfile);
CORE_ADDR toc_offset = 0; /* toc offset value in data section. */
char *filestring = NULL;
if (pst != NULL)
{
CORE_ADDR highval =
- symbol.n_value + csect_aux.x_csect.x_scnlen.l;
+ symbol.n_value + csect_aux.x_csect.x_scnlen.l;
+
if (highval > pst->texthigh)
pst->texthigh = highval;
if (pst->textlow == 0 || symbol.n_value < pst->textlow)
prim_record_minimal_symbol_and_info
(namestring, symbol.n_value,
sclass == C_HIDEXT ? mst_file_data : mst_data,
- NULL, secnum_to_section (symbol.n_scnum, objfile),
+ secnum_to_section (symbol.n_scnum, objfile),
NULL, objfile);
break;
prim_record_minimal_symbol_and_info
(namestring, symbol.n_value,
sclass == C_HIDEXT ? mst_file_data : mst_data,
- NULL, secnum_to_section (symbol.n_scnum, objfile),
+ secnum_to_section (symbol.n_scnum, objfile),
NULL, objfile);
break;
}
prim_record_minimal_symbol_and_info
(namestring, symbol.n_value,
sclass == C_HIDEXT ? mst_file_bss : mst_bss,
- NULL, secnum_to_section (symbol.n_scnum, objfile),
+ secnum_to_section (symbol.n_scnum, objfile),
NULL, objfile);
break;
}
if (last_csect_name && !misc_func_recorded)
{
-
/* If no misc. function recorded in the last seen csect, enter
it as a function. This will take care of functions like
strcmp() compiled by xlc. */
/* We probably could save a few instructions by assuming that
C_LSYM, C_PSYM, etc., never have auxents. */
int naux1 = symbol.n_numaux + 1;
+
ssymnum += naux1;
sraw_symbol += bfd_coff_symesz (abfd) * naux1;
}
{
/* Mark down an include file in the current psymtab */
enum language tmp_language;
+
swap_sym (&symbol, &main_aux[0], &namestring, &sraw_symbol,
&ssymnum, objfile);
things like "break c-exp.y:435" need to work (I
suppose the psymtab_include_list could be hashed or put
in a binary tree, if profiling shows this is a major hog). */
- if (pst && DEPRECATED_STREQ (namestring, pst->filename))
+ if (pst && strcmp (namestring, pst->filename) == 0)
continue;
+
{
int i;
+
for (i = 0; i < includes_used; i++)
- if (DEPRECATED_STREQ (namestring, psymtab_include_list[i]))
+ if (strcmp (namestring, psymtab_include_list[i]) == 0)
{
i = -1;
break;
case C_STSYM:
{
char *p;
+
swap_sym (&symbol, &main_aux[0], &namestring, &sraw_symbol,
&ssymnum, objfile);
{
case 'S':
symbol.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
-#ifdef STATIC_TRANSFORM_NAME
- namestring = STATIC_TRANSFORM_NAME (namestring);
-#endif
- add_psymbol_to_list (namestring, p - namestring,
+
+ if (gdbarch_static_transform_name_p (gdbarch))
+ namestring = gdbarch_static_transform_name
+ (gdbarch, namestring);
+
+ add_psymbol_to_list (namestring, p - namestring, 1,
VAR_DOMAIN, LOC_STATIC,
&objfile->static_psymbols,
0, symbol.n_value,
symbol.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
/* The addresses in these entries are reported to be
wrong. See the code that reads 'G's for symtabs. */
- add_psymbol_to_list (namestring, p - namestring,
+ add_psymbol_to_list (namestring, p - namestring, 1,
VAR_DOMAIN, LOC_STATIC,
&objfile->global_psymbols,
0, symbol.n_value,
|| (p == namestring + 1
&& namestring[0] != ' '))
{
- add_psymbol_to_list (namestring, p - namestring,
+ add_psymbol_to_list (namestring, p - namestring, 1,
STRUCT_DOMAIN, LOC_TYPEDEF,
&objfile->static_psymbols,
symbol.n_value, 0,
if (p[2] == 't')
{
/* Also a typedef with the same name. */
- add_psymbol_to_list (namestring, p - namestring,
+ add_psymbol_to_list (namestring, p - namestring, 1,
VAR_DOMAIN, LOC_TYPEDEF,
&objfile->static_psymbols,
symbol.n_value, 0,
case 't':
if (p != namestring) /* a name is there, not just :T... */
{
- add_psymbol_to_list (namestring, p - namestring,
+ add_psymbol_to_list (namestring, p - namestring, 1,
VAR_DOMAIN, LOC_TYPEDEF,
&objfile->static_psymbols,
symbol.n_value, 0,
;
/* Note that the value doesn't matter for
enum constants in psymtabs, just in symtabs. */
- add_psymbol_to_list (p, q - p,
+ add_psymbol_to_list (p, q - p, 1,
VAR_DOMAIN, LOC_CONST,
&objfile->static_psymbols, 0,
0, psymtab_language, objfile);
case 'c':
/* Constant, e.g. from "const" in Pascal. */
- add_psymbol_to_list (namestring, p - namestring,
+ add_psymbol_to_list (namestring, p - namestring, 1,
VAR_DOMAIN, LOC_CONST,
&objfile->static_psymbols, symbol.n_value,
0, psymtab_language, objfile);
{
int name_len = p - namestring;
char *name = xmalloc (name_len + 1);
+
memcpy (name, namestring, name_len);
name[name_len] = '\0';
function_outside_compilation_unit_complaint (name);
xfree (name);
}
symbol.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
- add_psymbol_to_list (namestring, p - namestring,
+ add_psymbol_to_list (namestring, p - namestring, 1,
VAR_DOMAIN, LOC_BLOCK,
&objfile->static_psymbols,
0, symbol.n_value,
{
int name_len = p - namestring;
char *name = xmalloc (name_len + 1);
+
memcpy (name, namestring, name_len);
name[name_len] = '\0';
function_outside_compilation_unit_complaint (name);
xfree (name);
}
+
+ /* We need only the minimal symbols for these
+ loader-generated definitions. Keeping the global
+ symbols leads to "in psymbols but not in symbols"
+ errors. */
+ if (strncmp (namestring, "@FIX", 4) == 0)
+ continue;
+
symbol.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
- add_psymbol_to_list (namestring, p - namestring,
+ add_psymbol_to_list (namestring, p - namestring, 1,
VAR_DOMAIN, LOC_BLOCK,
&objfile->global_psymbols,
0, symbol.n_value,
/* Return the toc offset value for a given objfile. */
CORE_ADDR
-get_toc_offset (struct objfile *objfile)
+xcoff_get_toc_offset (struct objfile *objfile)
{
if (objfile)
return ((struct coff_symfile_info *) objfile->deprecated_sym_private)->toc_offset;
SECTION_OFFSETS contains offsets relative to which the symbols in the
various sections are (depending where the sections were actually loaded).
- MAINLINE is true if we are reading the main symbol
- table (as opposed to a shared lib or dynamically loaded file). */
+*/
static void
-xcoff_initial_scan (struct objfile *objfile, int mainline)
+xcoff_initial_scan (struct objfile *objfile, int symfile_flags)
{
bfd *abfd;
int val;
perror_with_name (_("reading symbol table"));
/* If we are reinitializing, or if we have never loaded syms yet, init */
- if (mainline
- || (objfile->global_psymbols.size == 0
- && objfile->static_psymbols.size == 0))
+ if (objfile->global_psymbols.size == 0 && objfile->static_psymbols.size == 0)
/* I'm not sure how how good num_symbols is; the rule of thumb in
init_psymbol_list was developed for a.out. On the one hand,
num_symbols includes auxents. On the other hand, it doesn't
default_symfile_segments, /* sym_segments: Get segment information from
a file. */
aix_process_linenos, /* sym_read_linetable */
+ default_symfile_relocate, /* sym_relocate: Relocate a debug section. */
+ &psym_functions,
NULL /* next: pointer to next struct sym_fns */
};
+/* Provide a prototype to silence -Wmissing-prototypes. */
+extern initialize_file_ftype _initialize_xcoffread;
+
void
_initialize_xcoffread (void)
{
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