#include <sys/stat.h>
#include <sys/debug.h>
+#include "coff/internal.h" /* FIXME, internal data from BFD */
+#include "libcoff.h" /* FIXME, internal data from BFD */
+#include "coff/rs6000.h" /* FIXME, raw file-format guts of xcoff */
+
#include "symtab.h"
#include "gdbtypes.h"
#include "symfile.h"
#include "stabsread.h"
#include "complaints.h"
-#include "coff/internal.h" /* FIXME, internal data from BFD */
-#include "libcoff.h" /* FIXME, internal data from BFD */
-#include "coff/rs6000.h" /* FIXME, raw file-format guts of xcoff */
-
/* For interface with stabsread.c. */
#include "aout/stab_gnu.h"
struct coff_symbol {
char *c_name;
int c_symnum; /* symbol number of this entry */
- int c_nsyms; /* 0 if syment only, 1 if syment + auxent */
+ int c_naux; /* 0 if syment only, 1 if syment + auxent */
long c_value;
unsigned char c_sclass;
int c_secnum;
static void
xcoff_new_init PARAMS ((struct objfile *));
-#ifdef __STDC__
-struct section_offset;
-#endif
-
static void
-xcoff_symfile_read PARAMS ((struct objfile *, struct section_offset *, int));
+xcoff_symfile_read PARAMS ((struct objfile *, struct section_offsets *, int));
static void
xcoff_symfile_finish PARAMS ((struct objfile *));
abfd, textsec, buffer,
(file_ptr)(functionstart +
bytesread - (buffer + bufferbytes - (char*)pinsn)),MIN_TBTABSIZ))
- { printf ("Abnormal return!..\n"); return NULL; }
+ { printf_unfiltered ("Abnormal return!..\n"); return NULL; }
ptb = (struct tbtable *)buffer;
}
abfd, textsec, buffer,
(file_ptr)(functionstart +
bytesread - (buffer + bufferbytes - pinsn)),MIN_TBTABSIZ))
- /* abort (); */ { printf ("abort!!!\n"); return NULL; }
+ /* abort (); */ { printf_unfiltered ("abort!!!\n"); return NULL; }
return (struct tbtable *)buffer;
}
/* Reading symbol table has to be fast! Keep the followings as macros, rather
than functions. */
-#define RECORD_MINIMAL_SYMBOL(NAME, ADDR, TYPE, ALLOCED, SECTION) \
+#define RECORD_MINIMAL_SYMBOL(NAME, ADDR, TYPE, ALLOCED, SECTION, OBJFILE) \
{ \
char *namestr; \
if (ALLOCED) \
(ALLOCED) = 1; \
} \
prim_record_minimal_symbol_and_info (namestr, (ADDR), (TYPE), \
- (char *)NULL, (SECTION)); \
+ (char *)NULL, (SECTION), (OBJFILE)); \
misc_func_recorded = 1; \
}
static int symname_alloced = 0;
+/* Next symbol to read. Pointer into raw seething symbol table. */
+
+static char *raw_symbol;
+
+/* This is the function which stabsread.c calls to get symbol
+ continuations. */
+static char *
+xcoff_next_symbol_text ()
+{
+ struct internal_syment symbol;
+ static struct complaint msg =
+ {"Unexpected symbol continuation", 0, 0};
+ char *retval;
+
+ bfd_coff_swap_sym_in (current_objfile->obfd, raw_symbol, &symbol);
+ if (symbol.n_zeroes)
+ {
+ complain (&msg);
+
+ /* Return something which points to '\0' and hope the symbol reading
+ code does something reasonable. */
+ retval = "";
+ }
+ else if (symbol.n_sclass & 0x80)
+ {
+ retval = debugsec + symbol.n_offset;
+ raw_symbol += coff_data (current_objfile->obfd)->local_symesz;
+ ++symnum;
+ }
+ else
+ {
+ complain (&msg);
+
+ /* Return something which points to '\0' and hope the symbol reading
+ code does something reasonable. */
+ retval = "";
+ }
+ return retval;
+}
+
/* read the whole symbol table of a given bfd. */
static void
int nsyms; /* # of symbols */
{
bfd *abfd = objfile->obfd;
- char *raw_symbol; /* Pointer into raw seething symbol table */
char *raw_auxptr; /* Pointer to first raw aux entry for sym */
sec_ptr textsec; /* Pointer to text section */
TracebackInfo *ptb; /* Pointer to traceback table */
struct internal_syment symbol[1];
- union internal_auxent main_aux[1];
+ union internal_auxent main_aux;
struct coff_symbol cs[1];
CORE_ADDR file_start_addr = 0;
CORE_ADDR file_end_addr = 0;
textsec = bfd_get_section_by_name (abfd, ".text");
if (!textsec) {
- printf ("Unable to locate text section!\n");
+ printf_unfiltered ("Unable to locate text section!\n");
}
+ next_symbol_text_func = xcoff_next_symbol_text;
+
while (symnum < nsyms) {
QUIT; /* make this command interruptable. */
bfd_coff_swap_sym_in (abfd, raw_symbol, symbol);
cs->c_symnum = symnum;
- cs->c_nsyms = symbol->n_numaux;
+ cs->c_naux = symbol->n_numaux;
if (symbol->n_zeroes) {
symname_alloced = 0;
/* We must use the original, unswapped, name here so the name field
/* if explicitly specified as a function, treat is as one. */
if (ISFCN(cs->c_type) && cs->c_sclass != C_TPDEF) {
bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass,
- main_aux);
+ 0, cs->c_naux, &main_aux);
goto function_entry_point;
}
- if ((cs->c_sclass == C_EXT || cs->c_sclass == C_HIDEXT) && cs->c_nsyms == 1)
+ if ((cs->c_sclass == C_EXT || cs->c_sclass == C_HIDEXT) && cs->c_naux == 1)
{
/* dealing with a symbol with a csect entry. */
# define CSECT(PP) ((PP)->x_csect)
-# define CSECT_LEN(PP) (CSECT(PP).x_scnlen)
+# define CSECT_LEN(PP) (CSECT(PP).x_scnlen.l)
# define CSECT_ALIGN(PP) (SMTYP_ALIGN(CSECT(PP).x_smtyp))
# define CSECT_SMTYP(PP) (SMTYP_SMTYP(CSECT(PP).x_smtyp))
# define CSECT_SCLAS(PP) (CSECT(PP).x_smclas)
/* Convert the auxent to something we can access. */
bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass,
- main_aux);
+ 0, cs->c_naux, &main_aux);
- switch (CSECT_SMTYP (main_aux)) {
+ switch (CSECT_SMTYP (&main_aux)) {
case XTY_ER :
continue; /* ignore all external references. */
case XTY_SD : /* a section description. */
{
- switch (CSECT_SCLAS (main_aux)) {
+ switch (CSECT_SCLAS (&main_aux)) {
case XMC_PR : /* a `.text' csect. */
{
if (!misc_func_recorded) {
int alloced = 0;
RECORD_MINIMAL_SYMBOL (last_csect_name, last_csect_val,
- mst_text, alloced, last_csect_sec);
+ mst_text, alloced, last_csect_sec,
+ objfile);
}
/* If this is the very first csect seen, basically `__start'. */
if (just_started) {
- first_object_file_end = cs->c_value + CSECT_LEN (main_aux);
+ first_object_file_end = cs->c_value + CSECT_LEN (&main_aux);
just_started = 0;
}
file_start_addr = cs->c_value;
- file_end_addr = cs->c_value + CSECT_LEN (main_aux);
+ file_end_addr = cs->c_value + CSECT_LEN (&main_aux);
if (cs->c_name && cs->c_name[0] == '.') {
last_csect_name = cs->c_name;
case XTY_LD :
/* a function entry point. */
- if (CSECT_SCLAS (main_aux) == XMC_PR) {
+ if (CSECT_SCLAS (&main_aux) == XMC_PR) {
function_entry_point:
RECORD_MINIMAL_SYMBOL (cs->c_name, cs->c_value, mst_text,
- symname_alloced, cs->c_secnum);
+ symname_alloced, cs->c_secnum, objfile);
- fcn_line_offset = main_aux->x_sym.x_fcnary.x_fcn.x_lnnoptr;
+ fcn_line_offset = main_aux.x_sym.x_fcnary.x_fcn.x_lnnoptr;
fcn_start_addr = cs->c_value;
/* save the function header info, which will be used
when `.bf' is seen. */
fcn_cs_saved = *cs;
- fcn_aux_saved = *main_aux;
+ fcn_aux_saved = main_aux;
ptb = NULL;
already available for it. Process traceback table for
functions with only one auxent. */
- if (cs->c_nsyms == 1)
+ if (cs->c_naux == 1)
ptb = retrieve_tracebackinfo (abfd, textsec, cs);
- else if (cs->c_nsyms != 2)
- abort ();
+ else if (cs->c_naux != 2)
+ {
+ static struct complaint msg =
+ {"Expected one or two auxents for function", 0, 0};
+ complain (&msg);
+ }
/* If there is traceback info, create and add parameters for it. */
continue;
}
/* shared library function trampoline code entry point. */
- else if (CSECT_SCLAS (main_aux) == XMC_GL) {
+ else if (CSECT_SCLAS (&main_aux) == XMC_GL) {
- /* record trampoline code entries as mst_unknown symbol. When we
- lookup mst symbols, we will choose mst_text over mst_unknown. */
+ /* record trampoline code entries as mst_solib_trampoline symbol.
+ When we lookup mst symbols, we will choose mst_text over
+ mst_solib_trampoline. */
#if 1
/* After the implementation of incremental loading of shared
consistient with gdb's behaviour on a SUN platform. */
/* Trying to prefer *real* function entry over its trampoline,
- by assigning `mst_unknown' type to trampoline entries fails.
- Gdb treats those entries as chars. FIXME. */
+ by assigning `mst_solib_trampoline' type to trampoline entries
+ fails. Gdb treats those entries as chars. FIXME. */
/* Recording this entry is necessary. Single stepping relies on
this vector to get an idea about function address boundaries. */
prim_record_minimal_symbol_and_info
- ("<trampoline>", cs->c_value, mst_unknown,
- (char *)NULL, cs->c_secnum);
+ ("<trampoline>", cs->c_value, mst_solib_trampoline,
+ (char *)NULL, cs->c_secnum, objfile);
#else
- /* record trampoline code entries as mst_unknown symbol. When we
- lookup mst symbols, we will choose mst_text over mst_unknown. */
+ /* record trampoline code entries as mst_solib_trampoline symbol.
+ When we lookup mst symbols, we will choose mst_text over
+ mst_solib_trampoline. */
- RECORD_MINIMAL_SYMBOL (cs->c_name, cs->c_value, mst_unknown,
- symname_alloced);
+ RECORD_MINIMAL_SYMBOL (cs->c_name, cs->c_value,
+ mst_solib_trampoline,
+ symname_alloced, objfile);
#endif
continue;
}
- break;
+ continue;
default : /* all other XTY_XXXs */
break;
int alloced = 0;
RECORD_MINIMAL_SYMBOL (last_csect_name, last_csect_val,
- mst_text, alloced, last_csect_sec);
+ mst_text, alloced, last_csect_sec, objfile);
}
/* c_value field contains symnum of next .file entry in table
cur_src_end_addr = file_end_addr;
end_symtab (file_end_addr, 1, 0, objfile, textsec->target_index);
end_stabs ();
+
+ /* XCOFF, according to the AIX 3.2 documentation, puts the filename
+ in cs->c_name. But xlc 1.3.0.2 has decided to do things the
+ standard COFF way and put it in the auxent. We use the auxent if
+ there is one, otherwise use the name. Simple enough. */
+ if (cs->c_naux > 0)
+ filestring = coff_getfilename (&main_aux);
+ else
+ filestring = cs->c_name;
+
start_stabs ();
- start_symtab (cs->c_name, (char *)NULL, (CORE_ADDR)0);
+ start_symtab (filestring, (char *)NULL, (CORE_ADDR)0);
last_csect_name = 0;
/* reset file start and end addresses. A compilation unit with no text
(only data) should have zero file boundaries. */
file_start_addr = file_end_addr = 0;
-
- filestring = cs->c_name;
break;
if (STREQ (cs->c_name, ".bf")) {
bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass,
- main_aux);
+ 0, cs->c_naux, &main_aux);
within_function = 1;
else if (STREQ (cs->c_name, ".ef")) {
bfd_coff_swap_aux_in (abfd, raw_auxptr, cs->c_type, cs->c_sclass,
- main_aux);
+ 0, cs->c_naux, &main_aux);
/* the value of .ef is the address of epilogue code;
not useful for gdb */
/* { main_aux.x_sym.x_misc.x_lnsz.x_lnno
contains number of lines to '}' */
- fcn_last_line = main_aux->x_sym.x_misc.x_lnsz.x_lnno;
+ fcn_last_line = main_aux.x_sym.x_misc.x_lnsz.x_lnno;
new = pop_context ();
if (context_stack_depth != 0)
error ("invalid symbol data; .bf/.ef/.bb/.eb symbol mismatch, at symbol %d.",
case C_STRTAG :
case C_UNTAG :
case C_ENTAG :
- printf ("ERROR: Unimplemented storage class: %d.\n", cs->c_sclass);
+ printf_unfiltered ("ERROR: Unimplemented storage class: %d.\n", cs->c_sclass);
break;
case C_HIDEXT : /* ignore these.. */
break;
#endif
- case C_DECL: /* a type decleration?? */
-
- sym = define_symbol (cs->c_value, cs->c_name, 0, 0, objfile);
- if (sym != NULL)
- SYMBOL_SECTION (sym) = cs->c_secnum;
- return sym;
-
case C_GSYM:
add_stab_to_list (name, &global_stabs);
break;
+ case C_BCOMM:
+ common_block_start (cs->c_name, objfile);
+ break;
+
+ case C_ECOMM:
+ common_block_end (objfile);
+ break;
+
+ default:
+ complain (&storclass_complaint, cs->c_sclass);
+ /* FALLTHROUGH */
+
+ case C_DECL:
case C_PSYM:
case C_RPSYM:
+ case C_ECOML:
sym = define_symbol (cs->c_value, cs->c_name, 0, 0, objfile);
if (sym != NULL)
case C_STSYM:
- /* If we are going to use Sun dbx's define_symbol(), we need to
- massage our stab string a little. Change 'V' type to 'S' to be
- comparible with Sun. */
- /* FIXME: I believe this is to avoid a Sun-specific hack somewhere.
- Needs more investigation. */
+ /* For xlc (not GCC), the 'V' symbol descriptor is used for all
+ statics and we need to distinguish file-scope versus function-scope
+ using within_function. We do this by changing the string we pass
+ to define_symbol to use 'S' where we need to, which is not necessarily
+ super-clean, but seems workable enough. */
- if (*name == ':' || (pp = (char *) strchr(name, ':')) == NULL)
- return NULL;
+ if (*name == ':' || (pp = (char *) strchr(name, ':')) == NULL)
+ return NULL;
- ++pp;
- if (*pp == 'V') *pp = 'S';
- sym = define_symbol (cs->c_value, cs->c_name, 0, 0, objfile);
- if (sym != NULL)
- {
- SYMBOL_VALUE (sym) += static_block_base;
- SYMBOL_SECTION (sym) = static_block_section;
- }
- return sym;
+ ++pp;
+ if (*pp == 'V' && !within_function)
+ *pp = 'S';
+ sym = define_symbol (cs->c_value, cs->c_name, 0, 0, objfile);
+ if (sym != NULL)
+ {
+ SYMBOL_VALUE (sym) += static_block_base;
+ SYMBOL_SECTION (sym) = static_block_section;
+ }
+ return sym;
case C_LSYM:
sym = define_symbol (cs->c_value, cs->c_name, 0, N_LSYM, objfile);
break;
case C_REG:
- printf ("ERROR! C_REG is not fully implemented!\n");
+ printf_unfiltered ("ERROR! C_REG is not fully implemented!\n");
SYMBOL_CLASS (sym) = LOC_REGISTER;
SYMBOL_NAME (sym) = SYMNAME_ALLOC (name, symname_alloced);
SYMBOL_SECTION (sym) = cs->c_secnum;
complain (&rsym_complaint, name);
return NULL;
}
-
- default :
- complain (&storclass_complaint, cs->c_sclass);
- return NULL;
}
}
return sym2;
/* take aux entry and return its lineno */
symno++;
bfd_coff_swap_aux_in (symfile_bfd, symtbl+(symno*local_symesz),
- symbol->n_type, symbol->n_sclass, main_aux);
+ symbol->n_type, symbol->n_sclass,
+ 0, symbol->n_numaux, main_aux);
return main_aux->x_sym.x_misc.x_lnsz.x_lnno;
}
linetab = NULL;
}
\f
-/* dbx allows the text of a symbol name to be continued into the
- next symbol name! When such a continuation is encountered
- (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 xcoff. */
-
-#undef next_symbol_text
-#define next_symbol_text() \
- printf ("Gdb Error: symbol names on multiple lines not implemented.\n")
-
-
static void
xcoff_new_init (objfile)
struct objfile *objfile;
return -1;
if (!bfd_get_section_contents(abfd, secp, debugsec, (file_ptr) 0, length)) {
- printf ("Can't read .debug section from symbol file\n");
+ printf_unfiltered ("Can't read .debug section from symbol file\n");
return -1;
}
return 0;
static void
xcoff_symfile_read (objfile, section_offset, mainline)
struct objfile *objfile;
- struct section_offset *section_offset;
+ struct section_offsets *section_offset;
int mainline;
{
int num_symbols; /* # of symbols */
free_debugsection ();
/* Sort symbols alphabetically within each block. */
- sort_all_symtab_syms ();
+ {
+ struct symtab *s;
+ for (s = objfile -> symtabs; s != NULL; s = s -> next)
+ {
+ sort_symtab_syms (s);
+ }
+ }
/* Install any minimal symbols that have been collected as the current
minimal symbols for this objfile. */
return section_offsets;
}
-/* Register our ability to parse symbols for xcoff BFD files. */
+
+/* Register our ability to parse symbols for xcoff BFD files. */
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 */
+
+ /* Because the bfd uses coff_flavour, we need to specially kludge
+ the flavour. FIXME: coff and xcoff and fundamentally similar
+ except for debug format, and we should see if we can merge this
+ file with coffread.c. For example, the extra storage classes
+ used for stabs could presumably be recognized in any COFF file. */
+
+ (enum bfd_flavour)-1,
+
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 */
projects / binutils.git / blobdiff