/* vms.c -- BFD back-end for VAX (openVMS/VAX) and
EVAX (openVMS/Alpha) files.
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
- 2006, 2007 Free Software Foundation, Inc.
+ 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+
+ Main file.
Written by Klaus K"ampf (kkaempf@rmi.de)
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
+#ifdef VMS
+#include <rms.h>
+#include <unixlib.h>
+#include <starlet.h>
+#define RME$C_SETRFM 0x00000001
+#include <unistd.h>
+#endif
+
#include "sysdep.h"
#include "bfd.h"
#include "bfdlink.h"
#include "vms.h"
+static bfd_boolean vms_initialize (bfd *);
+static bfd_boolean fill_section_ptr (struct bfd_hash_entry *, PTR);
+static bfd_boolean vms_fixup_sections (bfd *);
+static bfd_boolean copy_symbols (struct bfd_hash_entry *, PTR);
+static bfd_reloc_status_type reloc_nil (bfd *, arelent *, asymbol *, PTR,
+ asection *, bfd *, char **);
+static int vms_slurp_module (bfd *abfd);
+static int vms_slurp_image (bfd *abfd);
+static const struct bfd_target *vms_object_p (bfd *abfd);
+static const struct bfd_target *vms_archive_p (bfd *abfd);
+static bfd_boolean vms_mkobject (bfd *abfd);
+static bfd_boolean vms_write_object_contents (bfd *abfd);
+static void free_reloc_stream (bfd *abfd, asection *section, void *data);
+static bfd_boolean vms_close_and_cleanup (bfd *abfd);
+static bfd_boolean vms_bfd_free_cached_info (bfd *abfd);
+static bfd_boolean vms_new_section_hook (bfd *abfd, asection *section);
+static bfd_boolean vms_get_section_contents
+ (bfd *abfd, asection *section, PTR x1, file_ptr x2, bfd_size_type x3);
+static bfd_boolean vms_get_section_contents_in_window
+ (bfd *abfd, asection *section, bfd_window *w, file_ptr offset,
+ bfd_size_type count);
+static bfd_boolean vms_bfd_copy_private_bfd_data (bfd *src, bfd *dest);
+static bfd_boolean vms_bfd_copy_private_section_data
+ (bfd *srcbfd, asection *srcsec, bfd *dstbfd, asection *dstsec);
+static bfd_boolean vms_bfd_copy_private_symbol_data
+ (bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym);
+static bfd_boolean vms_bfd_print_private_bfd_data (bfd *abfd, void *file);
+static char *vms_core_file_failing_command (bfd *abfd);
+static int vms_core_file_failing_signal (bfd *abfd);
+static bfd_boolean vms_core_file_matches_executable_p (bfd *abfd, bfd *bbfd);
+static bfd_boolean vms_slurp_armap (bfd *abfd);
+static bfd_boolean vms_slurp_extended_name_table (bfd *abfd);
+static bfd_boolean vms_construct_extended_name_table
+ (bfd *abfd, char **tabloc, bfd_size_type *tablen, const char **name);
+static void vms_truncate_arname (bfd *abfd, const char *pathname, char *arhdr);
+static bfd_boolean vms_write_armap
+ (bfd *arch, unsigned int elen, struct orl *map, unsigned int cnt, int idx);
+static PTR vms_read_ar_hdr (bfd *abfd);
+static bfd *vms_get_elt_at_index (bfd *abfd, symindex index);
+static bfd *vms_openr_next_archived_file (bfd *arch, bfd *prev);
+static bfd_boolean vms_update_armap_timestamp (bfd *abfd);
+static int vms_generic_stat_arch_elt (bfd *, struct stat *);
+static long vms_get_symtab_upper_bound (bfd *abfd);
+static long vms_canonicalize_symtab (bfd *abfd, asymbol **symbols);
+static void vms_print_symbol (bfd *abfd, PTR file, asymbol *symbol,
+ bfd_print_symbol_type how);
+static void vms_get_symbol_info (bfd *abfd, asymbol *symbol, symbol_info *ret);
+static bfd_boolean vms_bfd_is_local_label_name (bfd *abfd, const char *);
+static alent *vms_get_lineno (bfd *abfd, asymbol *symbol);
+static bfd_boolean vms_find_nearest_line
+ (bfd *abfd, asection *section, asymbol **symbols, bfd_vma offset,
+ const char **file, const char **func, unsigned int *line);
+static asymbol *vms_bfd_make_debug_symbol (bfd *abfd, void *ptr,
+ unsigned long size);
+static long vms_read_minisymbols (bfd *abfd, bfd_boolean dynamic,
+ PTR *minisymsp, unsigned int *sizep);
+static asymbol *vms_minisymbol_to_symbol
+ (bfd *abfd, bfd_boolean dynamic, const PTR minisym, asymbol *sym);
+static void alloc_reloc_stream (bfd *abfd, asection *section,
+ void *alloc_error);
+static bfd_boolean vms_slurp_reloc_table (bfd *abfd, asection *section,
+ asymbol **symbols);
+static long vms_get_reloc_upper_bound (bfd *abfd, asection *sect);
+static long vms_canonicalize_reloc (bfd *abfd, asection *srcsec,
+ arelent **location, asymbol **symbols);
+static const struct reloc_howto_struct *vms_bfd_reloc_type_lookup
+ (bfd *abfd, bfd_reloc_code_real_type code);
+static bfd_boolean vms_set_arch_mach
+ (bfd *abfd, enum bfd_architecture arch, unsigned long mach);
+static bfd_boolean vms_set_section_contents
+ (bfd *abfd, asection *section, const PTR location, file_ptr offset,
+ bfd_size_type count);
+static int vms_sizeof_headers (bfd *abfd,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED);
+static bfd_byte *vms_bfd_get_relocated_section_contents
+ (bfd *abfd, struct bfd_link_info *link_info,
+ struct bfd_link_order *link_order, bfd_byte *data,
+ bfd_boolean relocatable, asymbol **symbols);
+static bfd_boolean vms_bfd_relax_section
+ (bfd *abfd, asection *section, struct bfd_link_info *link_info,
+ bfd_boolean *again);
+static bfd_boolean vms_bfd_gc_sections
+ (bfd *abfd, struct bfd_link_info *link_info);
+static bfd_boolean vms_bfd_merge_sections
+ (bfd *abfd, struct bfd_link_info *link_info);
+static struct bfd_link_hash_table *vms_bfd_link_hash_table_create (bfd *abfd);
+static void vms_bfd_link_hash_table_free (struct bfd_link_hash_table *hash);
+static bfd_boolean vms_bfd_link_add_symbols
+ (bfd *abfd, struct bfd_link_info *link_info);
+static bfd_boolean vms_bfd_final_link (bfd *abfd,
+ struct bfd_link_info *link_info);
+static bfd_boolean vms_bfd_link_split_section (bfd *abfd, asection *section);
+static long vms_get_dynamic_symtab_upper_bound (bfd *abfd);
+static long vms_canonicalize_dynamic_symtab (bfd *abfd, asymbol **symbols);
+static long vms_get_dynamic_reloc_upper_bound (bfd *abfd);
+static long vms_canonicalize_dynamic_reloc
+ (bfd *abfd, arelent **arel, asymbol **symbols);
+static bfd_boolean vms_bfd_merge_private_bfd_data (bfd *ibfd, bfd *obfd);
+static bfd_boolean vms_bfd_set_private_flags (bfd *abfd, flagword flags);
+
#define vms_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define vms_make_empty_symbol _bfd_generic_make_empty_symbol
#define vms_bfd_link_just_syms _bfd_generic_link_just_syms
#define vms_bfd_is_group_section bfd_generic_is_group_section
#define vms_bfd_discard_group bfd_generic_discard_group
#define vms_section_already_linked _bfd_generic_section_already_linked
+#define vms_bfd_define_common_symbol bfd_generic_define_common_symbol
#define vms_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
#define vms_get_synthetic_symtab _bfd_nodynamic_get_synthetic_symtab
-static unsigned int priv_section_count;
+\f
+#ifdef VMS_DEBUG
+/* Cause debug info to be emitted for the structure. */
+struct vms_private_data_struct _vms_private_data_struct_dummy;
+struct vms_section_data_struct _vms_section_data_struct_dummy;
+#endif
+
extern const bfd_target vms_vax_vec;
extern const bfd_target vms_alpha_vec;
-\f
-/* Initialize private data. */
+/* Initialize private data */
static bfd_boolean
vms_initialize (bfd * abfd)
{
- int i;
bfd_size_type amt;
bfd_set_start_address (abfd, (bfd_vma) -1);
amt = sizeof (struct vms_private_data_struct);
- abfd->tdata.any = bfd_alloc (abfd, amt);
+ abfd->tdata.any = bfd_zalloc (abfd, amt);
if (abfd->tdata.any == NULL)
return FALSE;
-#ifdef __ALPHA
- PRIV (is_vax) = FALSE;
-#else
- PRIV (is_vax) = TRUE;
-#endif
- PRIV (vms_buf) = NULL;
- PRIV (buf_size) = 0;
- PRIV (rec_length) = 0;
+ if (bfd_get_flavour (abfd) == bfd_target_ovax_flavour)
+ PRIV (is_vax) = TRUE;
+
PRIV (file_format) = FF_UNKNOWN;
- PRIV (fixup_done) = FALSE;
- PRIV (sections) = NULL;
amt = sizeof (struct stack_struct) * STACKSIZE;
PRIV (stack) = bfd_alloc (abfd, amt);
if (PRIV (stack) == NULL)
goto error_ret1;
- PRIV (stackptr) = 0;
amt = sizeof (struct bfd_hash_table);
PRIV (vms_symbol_table) = bfd_alloc (abfd, amt);
sizeof (vms_symbol_entry)))
goto error_ret1;
- amt = sizeof (struct location_struct) * LOCATION_SAVE_SIZE;
- PRIV (location_stack) = bfd_alloc (abfd, amt);
- if (PRIV (location_stack) == NULL)
- goto error_ret2;
-
- for (i = 0; i < VMS_SECTION_COUNT; i++)
- PRIV (vms_section_table)[i] = NULL;
-
amt = MAX_OUTREC_SIZE;
PRIV (output_buf) = bfd_alloc (abfd, amt);
if (PRIV (output_buf) == NULL)
goto error_ret2;
- PRIV (push_level) = 0;
- PRIV (pushed_size) = 0;
PRIV (length_pos) = 2;
- PRIV (output_size) = 0;
- PRIV (output_alignment) = 1;
return TRUE;
return FALSE;
}
-/* Fill symbol->section with section ptr
+struct pair
+{
+ unsigned int section_count;
+ asection **sections;
+};
+
+/* Fill symbol->section with section pointer.
+
symbol->section is filled with the section index for defined symbols
- during reading the GSD/EGSD section. But we need the pointer to the
+ during reading the GSD/EGSD section. But we need the pointer to the
bfd section later.
- It has the correct value for referenced (undefined section) symbols
+ It has the correct value for referenced (undefined section) symbols.
- called from bfd_hash_traverse in vms_fixup_sections. */
+ Called from bfd_hash_traverse in vms_fixup_sections. */
static bfd_boolean
-fill_section_ptr (struct bfd_hash_entry * entry, void * sections)
+fill_section_ptr (struct bfd_hash_entry *entry, void *sections)
{
- asection *sec;
- asymbol *sym;
-
- sym = ((vms_symbol_entry *) entry)->symbol;
- sec = sym->section;
+ asymbol *sym = ((vms_symbol_entry *)entry)->symbol;
+ struct pair *data = (struct pair *)sections;
+ unsigned long sec = (unsigned long)sym->section;
#if VMS_DEBUG
vms_debug (6, "fill_section_ptr: sym %p, sec %p\n", sym, sec);
#endif
- /* Fill forward references (these contain section number, not section ptr). */
- if ((unsigned int) (size_t) sec < priv_section_count)
- sec = ((vms_symbol_entry *) entry)->symbol->section =
- ((asection **) sections)[(unsigned int) (size_t) sec];
-
- if (strcmp (sym->name, sec->name) == 0)
- sym->flags |= BSF_SECTION_SYM;
+ if (sec < data->section_count)
+ {
+ sym->section = data->sections[sec];
+ if (strcmp (sym->name, sym->section->name) == 0)
+ sym->flags |= BSF_SECTION_SYM;
+ }
+ else if (sec == (unsigned long)-1)
+ sym->section = &bfd_und_section;
+
return TRUE;
}
-/* Fixup sections
- set up all pointers and arrays, counters and sizes are fixed now
-
- we build a private sections vector for easy access since sections
- are always referenced by an index number.
-
- alloc PRIV(sections) according to abfd->section_count
- copy abfd->sections to PRIV(sections). */
-
+/* Fixup section pointers in symbols. */
static bfd_boolean
vms_fixup_sections (bfd * abfd)
{
+ struct pair data;
+
if (PRIV (fixup_done))
return TRUE;
- /* Traverse symbol table and fill in all section pointers. */
-
- /* Can't provide section count as argument to fill_section_ptr(). */
- priv_section_count = PRIV (section_count);
- bfd_hash_traverse (PRIV (vms_symbol_table), fill_section_ptr, (PRIV (sections)));
+ data.section_count = PRIV (section_count);
+ data.sections = PRIV (sections);
+ bfd_hash_traverse (PRIV (vms_symbol_table), fill_section_ptr, &data);
PRIV (fixup_done) = TRUE;
-
return TRUE;
}
-\f
-/* Check the format for a file being read.
- Return a (bfd_target *) if it's an object file or zero if not. */
-static const struct bfd_target *
-vms_object_p (bfd * abfd)
+/* Slurp an ordered set of VMS object records. */
+int
+_bfd_vms_slurp_object_records (bfd * abfd)
{
- int err = 0;
- int prev_type;
- const struct bfd_target *target_vector = NULL;
- const bfd_arch_info_type *arch = NULL;
- void * tdata_save = abfd->tdata.any;
- bfd_vma saddr_save = bfd_get_start_address (abfd);
-
-#if VMS_DEBUG
- vms_debug (1, "vms_object_p (%p)\n", abfd);
-#endif
-
- if (!vms_initialize (abfd))
- goto error_ret;
-
- if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET))
- goto err_wrong_format;
-
- prev_type = -1;
+ int err, new_type, type = -1;
do
{
#if VMS_DEBUG
vms_debug (7, "reading at %08lx\n", bfd_tell (abfd));
#endif
- if (_bfd_vms_next_record (abfd) < 0)
+ new_type = _bfd_vms_get_object_record (abfd);
+ if (new_type < 0)
{
#if VMS_DEBUG
vms_debug (2, "next_record failed\n");
#endif
- goto err_wrong_format;
+ return -1;
}
- if ((prev_type == EOBJ_S_C_EGSD)
- && (PRIV (rec_type) != EOBJ_S_C_EGSD))
+ if (type == EOBJ_S_C_EGSD && new_type != EOBJ_S_C_EGSD)
{
if (! vms_fixup_sections (abfd))
{
#if VMS_DEBUG
vms_debug (2, "vms_fixup_sections failed\n");
#endif
- goto err_wrong_format;
+ return -1;
}
}
- prev_type = PRIV (rec_type);
-
- if (target_vector == NULL)
- {
- if (prev_type <= OBJ_S_C_MAXRECTYP)
- target_vector = & vms_vax_vec;
- else
- target_vector = & vms_alpha_vec;
- }
+ type = new_type;
- switch (prev_type)
+ switch (type)
{
case OBJ_S_C_HDR:
case EOBJ_S_C_EMH:
- err = _bfd_vms_slurp_hdr (abfd, prev_type);
+ err = _bfd_vms_slurp_hdr (abfd, type);
break;
case OBJ_S_C_EOM:
case OBJ_S_C_EOMW:
case EOBJ_S_C_EEOM:
- err = _bfd_vms_slurp_eom (abfd, prev_type);
+ err = _bfd_vms_slurp_eom (abfd, type);
break;
case OBJ_S_C_GSD:
case EOBJ_S_C_EGSD:
- err = _bfd_vms_slurp_gsd (abfd, prev_type);
+ err = _bfd_vms_slurp_gsd (abfd, type);
break;
case OBJ_S_C_TIR:
case EOBJ_S_C_ETIR:
- err = _bfd_vms_slurp_tir (abfd, prev_type);
+ err = _bfd_vms_slurp_tir (abfd, type);
break;
case OBJ_S_C_DBG:
case EOBJ_S_C_EDBG:
- err = _bfd_vms_slurp_dbg (abfd, prev_type);
+ err = _bfd_vms_slurp_dbg (abfd, type);
+ PRIV (dst_ptr_end) = PRIV (image_ptr);
break;
case OBJ_S_C_TBT:
case EOBJ_S_C_ETBT:
- err = _bfd_vms_slurp_tbt (abfd, prev_type);
+ err = _bfd_vms_slurp_tbt (abfd, type);
+ PRIV (dst_ptr_end) = PRIV (image_ptr);
break;
case OBJ_S_C_LNK:
- err = _bfd_vms_slurp_lnk (abfd, prev_type);
+ err = _bfd_vms_slurp_lnk (abfd, type);
break;
default:
err = -1;
if (err != 0)
{
#if VMS_DEBUG
- vms_debug (2, "slurp type %d failed with %d\n", prev_type, err);
+ vms_debug (2, "slurp type %d failed with %d\n", type, err);
#endif
- goto err_wrong_format;
+ return err;
}
}
- while ((prev_type != EOBJ_S_C_EEOM) && (prev_type != OBJ_S_C_EOM) && (prev_type != OBJ_S_C_EOMW));
+ while (type != EOBJ_S_C_EEOM && type != OBJ_S_C_EOM && type != OBJ_S_C_EOMW);
+
+ return 0;
+}
+
+/* Slurp a VMS module and return an error status. */
+
+static int
+vms_slurp_module (bfd *abfd)
+{
+ int type, err;
+
+ if (PRIV (is_vax))
+ type = PRIV (vms_rec)[0];
+ else
+ type = bfd_getl16 (PRIV (vms_rec));
+
+ err = _bfd_vms_slurp_hdr (abfd, type);
+ if (err != 0)
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return err;
+ }
+
+ return _bfd_vms_slurp_object_records (abfd);
+}
+
+/* Slurp a VMS image and return an error status. */
+
+static int
+vms_slurp_image (bfd *abfd)
+{
+ unsigned int isd_offset, ihs_offset;
+ int err;
+
+ err = _bfd_vms_slurp_ihd (abfd, &isd_offset, &ihs_offset);
+ if (err != 0)
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return err;
+ }
- if (target_vector == & vms_vax_vec)
+ err = _bfd_vms_slurp_isd (abfd, isd_offset);
+ if (err != 0)
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return err;
+ }
+
+ return _bfd_vms_slurp_ihs (abfd, ihs_offset);
+}
+
+/* Check the format for a file being read.
+ Return a (bfd_target *) if it's an object file or zero if not. */
+
+static const struct bfd_target *
+vms_object_p (bfd *abfd)
+{
+ const struct bfd_target *target_vector;
+ const bfd_arch_info_type *arch;
+ PTR tdata_save = abfd->tdata.any;
+ bfd_vma saddr_save = bfd_get_start_address (abfd);
+ int err = 0;
+
+#if VMS_DEBUG
+ vms_debug (1, "vms_object_p(%p)\n", abfd);
+#endif
+
+ if (!vms_initialize (abfd))
+ goto error_ret;
+
+ if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET))
+ goto err_wrong_format;
+
+ switch (_bfd_vms_get_first_record (abfd))
+ {
+ case FT_UNKNOWN:
+ default:
+ err = -1;
+ break;
+
+ case FT_MODULE:
+ err = vms_slurp_module (abfd);
+ break;
+
+ case FT_IMAGE:
+ err = vms_slurp_image (abfd);
+ break;
+ }
+
+ if (err != 0)
+ goto err_wrong_format;
+
+ if (PRIV (is_vax))
{
if (! vms_fixup_sections (abfd))
{
goto err_wrong_format;
}
- /* Set arch_info to vax. */
-
+ target_vector = &vms_vax_vec;
arch = bfd_scan_arch ("vax");
- PRIV (is_vax) = TRUE;
+
#if VMS_DEBUG
vms_debug (2, "arch is vax\n");
#endif
}
- else if (target_vector == & vms_alpha_vec)
+ else
{
/* Set arch_info to alpha. */
-
+ target_vector = &vms_alpha_vec;
arch = bfd_scan_arch ("alpha");
- PRIV (is_vax) = FALSE;
#if VMS_DEBUG
vms_debug (2, "arch is alpha\n");
#endif
}
- if (arch == NULL)
- {
-#if VMS_DEBUG
- vms_debug (2, "arch not found\n");
-#endif
- goto err_wrong_format;
- }
abfd->arch_info = arch;
-
return target_vector;
err_wrong_format:
bfd_set_error (bfd_error_wrong_format);
+
error_ret:
if (abfd->tdata.any != tdata_save && abfd->tdata.any != NULL)
bfd_release (abfd, abfd->tdata.any);
static bfd_boolean
vms_mkobject (bfd * abfd)
{
+ const bfd_arch_info_type *arch;
+
#if VMS_DEBUG
vms_debug (1, "vms_mkobject (%p)\n", abfd);
#endif
if (!vms_initialize (abfd))
return FALSE;
- {
-#ifdef __VAX
- const bfd_arch_info_type *arch = bfd_scan_arch ("vax");
-#else
- const bfd_arch_info_type *arch = bfd_scan_arch ("alpha");
-#endif
- if (arch == NULL)
- {
- bfd_set_error (bfd_error_wrong_format);
- return FALSE;
- }
- abfd->arch_info = arch;
- }
+ if (PRIV (is_vax))
+ arch = bfd_scan_arch ("vax");
+ else
+ arch = bfd_scan_arch ("alpha");
+
+ if (arch == 0)
+ {
+ bfd_set_error(bfd_error_wrong_format);
+ return FALSE;
+ }
+ abfd->arch_info = arch;
return TRUE;
}
/* 4.1, generic. */
+/* Free the reloc buffer for the specified section. */
+
+static void
+free_reloc_stream (bfd *abfd ATTRIBUTE_UNUSED, asection *section,
+ void *data ATTRIBUTE_UNUSED)
+{
+ if (vms_section_data (section)->reloc_stream)
+ free (vms_section_data (section)->reloc_stream);
+}
+
+#ifdef VMS
+/* Convert the file to variable record length format. This is done
+ using undocumented system call sys$modify().
+ Pure VMS version. */
+
+static void
+vms_convert_to_var (char *vms_filename)
+{
+ struct FAB fab = cc$rms_fab;
+
+ fab.fab$l_fna = vms_filename;
+ fab.fab$b_fns = strlen (vms_filename);
+ fab.fab$b_fac = FAB$M_PUT;
+ fab.fab$l_fop = FAB$M_ESC;
+ fab.fab$l_ctx = RME$C_SETRFM;
+
+ sys$open (&fab);
+
+ fab.fab$b_rfm = FAB$C_VAR;
+
+ sys$modify (&fab);
+ sys$close (&fab);
+}
+
+static int
+vms_convert_to_var_1 (char *filename, int type)
+{
+ if (type != DECC$K_FILE)
+ return FALSE;
+ vms_convert_to_var (filename);
+ return TRUE;
+}
+
+/* Convert the file to variable record length format. This is done
+ using undocumented system call sys$modify().
+ Unix filename version. */
+
+static int
+vms_convert_to_var_unix_filename (const char *unix_filename)
+{
+ if (decc$to_vms (unix_filename, &vms_convert_to_var_1, 0, 1) != 1)
+ return FALSE;
+ return TRUE;
+}
+#endif /* VMS */
+
/* Called when the BFD is being closed to do any necessary cleanup. */
static bfd_boolean
#if VMS_DEBUG
vms_debug (1, "vms_close_and_cleanup (%p)\n", abfd);
#endif
- if (abfd == NULL)
+ if (abfd == NULL || abfd->tdata.any == NULL)
return TRUE;
if (PRIV (vms_buf) != NULL)
if (PRIV (vms_symbol_table))
bfd_hash_table_free (PRIV (vms_symbol_table));
+ bfd_map_over_sections (abfd, free_reloc_stream, NULL);
+
bfd_release (abfd, abfd->tdata.any);
abfd->tdata.any = NULL;
+#ifdef VMS
+ if (abfd->direction == write_direction)
+ {
+ /* Last step on VMS is to convert the file to variable record length
+ format. */
+ if (bfd_cache_close (abfd) != TRUE)
+ return FALSE;
+ if (vms_convert_to_var_unix_filename (abfd->filename) != TRUE)
+ return FALSE;
+ }
+#endif
+
return TRUE;
}
static bfd_boolean
vms_new_section_hook (bfd * abfd, asection *section)
{
+ bfd_size_type amt;
+
/* Count hasn't been incremented yet. */
unsigned int section_count = abfd->section_count + 1;
vms_debug (1, "vms_new_section_hook (%p, [%d]%s), count %d\n",
abfd, section->index, section->name, section_count);
#endif
- bfd_set_section_alignment (abfd, section, 4);
+
+ bfd_set_section_alignment (abfd, section, 0);
if (section_count > PRIV (section_count))
{
bfd_size_type amt = section_count;
amt *= sizeof (asection *);
- PRIV (sections) = bfd_realloc (PRIV (sections), amt);
+ PRIV (sections) = bfd_realloc_or_free (PRIV (sections), amt);
if (PRIV (sections) == NULL)
return FALSE;
PRIV (section_count) = section_count;
}
+
#if VMS_DEBUG
vms_debug (6, "section_count: %d\n", PRIV (section_count));
#endif
+
PRIV (sections)[section->index] = section;
+
#if VMS_DEBUG
vms_debug (7, "%d: %s\n", section->index, section->name);
#endif
+ amt = sizeof (struct vms_section_data_struct);
+ section->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
+ if (section->used_by_bfd == NULL)
+ return FALSE;
+
return _bfd_generic_new_section_hook (abfd, section);
}
file_ptr offset ATTRIBUTE_UNUSED,
bfd_size_type buf_size ATTRIBUTE_UNUSED)
{
+ bfd_size_type size = section->size;
+
#if VMS_DEBUG
vms_debug (1, "vms_get_section_contents (%p, %s, %p, off %ld, size %d)\n",
abfd, section->name, buf, offset, (int)buf_size);
#endif
- /* Shouldn't be called, since all sections are IN_MEMORY. */
- return FALSE;
+ if (section->contents)
+ abort ();
+
+ section->contents = (unsigned char *) bfd_malloc (size);
+
+ if (section->contents == NULL)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return FALSE;
+ }
+
+ if (bfd_seek (abfd, section->filepos, SEEK_SET))
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return FALSE;
+ }
+
+ if (bfd_bread (section->contents, size, abfd) != size)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return FALSE;
+ }
+
+ section->flags |= SEC_IN_MEMORY;
+
+ if (buf)
+ memcpy (buf, section->contents + offset, (size_t) buf_size);
+
+ return TRUE;
}
/* Read the contents of a section.
#if VMS_DEBUG
vms_debug (1, "vms_truncate_arname (%p, %s, %s)\n", abfd, pathname, arhdr);
#endif
- return;
}
/* ??? write archive map. */
if (ret == NULL)
return;
- if (bfd_is_com_section (sec))
+ if (sec == 0)
+ ret->type = 'U';
+ else if (bfd_is_com_section (sec))
ret->type = 'C';
else if (bfd_is_abs_section (sec))
ret->type = 'A';
vms_debug (1, "vms_find_nearest_line (%p, %s, %p, %ld, <ret>, <ret>, <ret>)\n",
abfd, section->name, symbols, (long int)offset);
#endif
- return FALSE;
+ return _bfd_vms_find_nearest_dst_line (abfd, section, symbols, offset, file, func, line);
}
static bfd_boolean
/* Part 4.6, relocations. */
-/* Return the number of bytes required to store the relocation information
- associated with section sect attached to bfd abfd.
- If an error occurs, return -1. */
+/* Allocate the reloc buffer for the specified section. */
-static long
-vms_get_reloc_upper_bound (bfd * abfd ATTRIBUTE_UNUSED,
- asection *section ATTRIBUTE_UNUSED)
+static void
+alloc_reloc_stream (bfd *abfd ATTRIBUTE_UNUSED, asection *section,
+ void *alloc_error)
{
+ unsigned char *ptr;
+
+ /* If there were no relocations, there is nothing to do. */
+ if (section->reloc_count == 0)
+ return;
+
+ ptr = bfd_malloc (vms_section_data (section)->reloc_size);
+ if (ptr == NULL)
+ {
+ *(bfd_boolean *)alloc_error = TRUE;
+ return;
+ }
+
+ vms_section_data (section)->reloc_stream = ptr;
+}
+
+/* Read in the relocs for the specified section and internalize them.
+
+ The implementation is loosely based on the SOM code and made up
+ of 3 distinct phases:
+
+ 1. When the VMS object is opened and parsed, the number and the size
+ of the relocations are computed for all sections. This makes it
+ possible to know upfront both which sections have no relocs and
+ the size of the reloc buffers for the other sections, at virtually
+ no cost for consumers that don't care about relocs at all.
+
+ 2. When vms_slurp_reloc_table is invoked for the first time on a section
+ with relocs, the object is traversed and all the reloc information
+ is saved in per-section reloc buffers. It would be very inefficient
+ to scan the whole file on each invocation, so we slurp for all the
+ sections at once.
+
+ 3. On subsequent invocations of vms_slurp_reloc_table, the relocs for the
+ specified section are fetched from the buffer, decoded and internalized.
+ The buffer is then freed since the internalized relocs are attached to
+ the section, turning additional invocations of vms_slurp_reloc_table
+ on the same section into no-ops.
+
+ Since VMS objects have very few sections, it could be profitable to merge
+ phase #2 and phase #3, i.e. to decode and internalize the relocs for all
+ the sections at once. The current implementation is more elegant. */
+
+static bfd_boolean
+vms_slurp_reloc_table (bfd *abfd, asection *section, asymbol **symbols)
+{
+ arelent *internal_relocs;
+ bfd_size_type amt;
+ int err;
+
+ /* If there were no relocations, there is nothing to do. */
+ if (section->reloc_count == 0)
+ return TRUE;
+
+ /* Return saved information about the relocations if it is available. */
+ if (section->relocation != NULL)
+ return TRUE;
+
+ /* If the relocation stream has not been slurped, do it now. */
+ if (vms_section_data (section)->reloc_stream == NULL)
+ {
+ bfd_boolean alloc_error = FALSE;
+ int type;
+
+ /* Size the reloc buffer for each section. */
+ bfd_map_over_sections (abfd, alloc_reloc_stream, &alloc_error);
+ if (alloc_error)
+ return FALSE;
+
+ if (bfd_seek (abfd, 0, SEEK_SET) != 0)
+ return FALSE;
+
+ /* Reset section pointer. */
+ PRIV (image_section) = NULL;
+
+ do
+ {
+ type = _bfd_vms_get_object_record (abfd);
+ if (type != EOBJ_S_C_ETIR
+ && type != EOBJ_S_C_EDBG
+ && type != EOBJ_S_C_ETBT)
+ continue;
+ err = _bfd_vms_slurp_relocs (abfd);
+ if (err != 0)
+ {
#if VMS_DEBUG
- vms_debug (1, "vms_get_reloc_upper_bound (%p, %s)\n", abfd, section->name);
+ vms_debug (2, "slurp relocs failed with %d\n", err);
#endif
- return -1L;
+ return FALSE;
+ }
+ }
+ while (type != EOBJ_S_C_EEOM);
+ }
+
+ amt = section->reloc_count * sizeof (arelent);
+ internal_relocs = (arelent *) bfd_zalloc (abfd, amt);
+ if (internal_relocs == NULL)
+ return FALSE;
+
+ /* Decode and internalize the relocations. */
+ err = _bfd_vms_decode_relocs (abfd, internal_relocs, section, symbols);
+ if (err != 0)
+ {
+#if VMS_DEBUG
+ vms_debug (2, "decode relocs failed with %d\n", err);
+#endif
+ return FALSE;
+ }
+
+ /* We're done with the external relocations. Free them. */
+ free (vms_section_data (section)->reloc_stream);
+ vms_section_data (section)->reloc_stream = NULL;
+
+ /* Save our results and return success. */
+ section->relocation = internal_relocs;
+ return TRUE;
}
-/* Call the back end associated with the open BFD abfd and translate the
- external form of the relocation information attached to sec into the
- internal canonical form. Place the table into memory at loc, which has
- been preallocated, usually by a call to bfd_get_reloc_upper_bound.
- Returns the number of relocs, or -1 on error. */
+/* Return the number of bytes required to store the relocation
+ information associated with the given section. */
static long
-vms_canonicalize_reloc (bfd * abfd ATTRIBUTE_UNUSED,
- asection *section ATTRIBUTE_UNUSED,
- arelent **location ATTRIBUTE_UNUSED,
- asymbol **symbols ATTRIBUTE_UNUSED)
+vms_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, asection *section)
{
-#if VMS_DEBUG
- vms_debug (1, "vms_canonicalize_reloc (%p, %s, <ret>, <ret>)\n", abfd, section->name);
-#endif
- return FALSE;
+ return (section->reloc_count + 1) * sizeof (arelent *);
+}
+
+/* Convert relocations from VMS (external) form into BFD internal
+ form. Return the number of relocations. */
+
+static long
+vms_canonicalize_reloc (bfd *abfd, asection *section, arelent **relptr,
+ asymbol **symbols)
+{
+ arelent *tblptr;
+ int count;
+
+ if (! vms_slurp_reloc_table (abfd, section, symbols))
+ return -1;
+
+ count = section->reloc_count;
+ tblptr = section->relocation;
+
+ while (count--)
+ *relptr++ = tblptr++;
+
+ *relptr = (arelent *) NULL;
+ return section->reloc_count;
}
\f
/* This is just copied from ecoff-alpha, needs to be fixed probably. */
0xffffffff, /* Dest mask. */
FALSE), /* PC rel offset. */
+ HOWTO (ALPHA_R_NOP, /* Type. */
+ 0, /* Rightshift. */
+ 3, /* Size (0 = byte, 1 = short, 2 = long). */
+ 0, /* Bitsize. */
+ /* The following value must match that of ALPHA_R_BSR/ALPHA_R_BOH
+ because the calculations for the 3 relocations are the same.
+ See B.4.5.2 of the OpenVMS Linker Utility Manual. */
+ TRUE, /* PC relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont,/* Complain_on_overflow. */
+ reloc_nil, /* Special_function. */
+ "NOP", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xffffffff, /* Source mask. */
+ 0xffffffff, /* Dest mask. */
+ FALSE), /* PC rel offset. */
+
+ HOWTO (ALPHA_R_BSR, /* Type. */
+ 0, /* Rightshift. */
+ 3, /* Size (0 = byte, 1 = short, 2 = long). */
+ 0, /* Bitsize. */
+ TRUE, /* PC relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont,/* Complain_on_overflow. */
+ reloc_nil, /* Special_function. */
+ "BSR", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xffffffff, /* Source mask. */
+ 0xffffffff, /* Dest mask. */
+ FALSE), /* PC rel offset. */
+
+ HOWTO (ALPHA_R_LDA, /* Type. */
+ 0, /* Rightshift. */
+ 3, /* Size (0 = byte, 1 = short, 2 = long). */
+ 0, /* Bitsize. */
+ FALSE, /* PC relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont,/* Complain_on_overflow. */
+ reloc_nil, /* Special_function. */
+ "LDA", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xffffffff, /* Source mask. */
+ 0xffffffff, /* Dest mask. */
+ FALSE), /* PC rel offset. */
+
+ HOWTO (ALPHA_R_BOH, /* Type. */
+ 0, /* Rightshift. */
+ 3, /* Size (0 = byte, 1 = short, 2 = long, 3 = nil). */
+ 0, /* Bitsize. */
+ TRUE, /* PC relative. */
+ 0, /* Bitpos. */
+ complain_overflow_dont,/* Complain_on_overflow. */
+ reloc_nil, /* Special_function. */
+ "BOH", /* Name. */
+ FALSE, /* Partial_inplace. */
+ 0xffffffff, /* Source mask. */
+ 0xffffffff, /* Dest mask. */
+ FALSE), /* PC rel offset. */
};
/* Return a pointer to a howto structure which, when invoked, will perform
case BFD_RELOC_64_PCREL: alpha_type = ALPHA_R_SREL64; break;
case BFD_RELOC_ALPHA_LINKAGE: alpha_type = ALPHA_R_LINKAGE; break;
case BFD_RELOC_ALPHA_CODEADDR: alpha_type = ALPHA_R_CODEADDR; break;
+ case BFD_RELOC_ALPHA_NOP: alpha_type = ALPHA_R_NOP; break;
+ case BFD_RELOC_ALPHA_BSR: alpha_type = ALPHA_R_BSR; break;
+ case BFD_RELOC_ALPHA_LDA: alpha_type = ALPHA_R_LDA; break;
+ case BFD_RELOC_ALPHA_BOH: alpha_type = ALPHA_R_BOH; break;
default:
(*_bfd_error_handler) ("reloc (%d) is *UNKNOWN*", code);
return NULL;
#if VMS_DEBUG
vms_debug (1, "vms_set_arch_mach (%p, %d, %ld)\n", abfd, arch, mach);
#endif
- abfd->arch_info = bfd_scan_arch ("alpha");
- return TRUE;
+ if (arch != bfd_arch_alpha
+ && arch != bfd_arch_vax
+ && arch != bfd_arch_unknown)
+ return FALSE;
+
+ return bfd_default_set_arch_mach (abfd, arch, mach);
}
/* Sets the contents of the section section in BFD abfd to the data starting
- in memory at data. The data is written to the output section starting at
- offset offset for count bytes.
+ in memory at LOCATION. The data is written to the output section starting
+ at offset offset for count bytes.
Normally TRUE is returned, else FALSE. Possible error returns are:
o bfd_error_no_contents - The output section does not have the
abfd, section->name, location, (long int)offset, (int)count);
vms_debug (2, "size %d\n", (int) section->size);
#endif
- return _bfd_save_vms_section (abfd, section, location, offset, count);
+ if (count == (bfd_size_type)0)
+ return TRUE;
+
+ if (section->contents == NULL)
+ section->contents = bfd_alloc (abfd, section->size);
+ if (section->contents == NULL)
+ return FALSE;
+
+ memcpy (section->contents + offset, location, (size_t) count);
+ return TRUE;
}
/* Part 4.8, linker. */
struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
bfd_boolean *again ATTRIBUTE_UNUSED)
{
+ if (link_info->relocatable)
+ (*link_info->callbacks->einfo)
+ (_("%P%F: --relax and -r may not be used together\n"));
+
#if VMS_DEBUG
vms_debug (1, "vms_bfd_relax_section (%p, %s, %p, <ret>)\n",
abfd, section->name, link_info);
#if VMS_DEBUG
vms_debug (1, "vms_get_dynamic_symtab_upper_bound (%p)\n", abfd);
#endif
- return 0;
+ return 0L;
}
static bfd_boolean
BFD_ENDIAN_LITTLE, /* Data byte order is little. */
BFD_ENDIAN_LITTLE, /* Header byte order is little. */
- (HAS_RELOC | HAS_SYMS
+ (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
| WP_TEXT | D_PAGED), /* Object flags. */
(SEC_ALLOC | SEC_LOAD | SEC_RELOC
| SEC_READONLY | SEC_CODE | SEC_DATA
| SEC_HAS_CONTENTS | SEC_IN_MEMORY), /* Sect flags. */
- 0, /* Symbol_leading_char. */
- ' ', /* AR_pad_char. */
- 15, /* AR_max_namelen. */
+ 0, /* symbol_leading_char. */
+ ' ', /* ar_pad_char. */
+ 15, /* ar_max_namelen. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16,
NULL,
- NULL
+ (PTR) 0
};
const bfd_target vms_vax_vec =
(SEC_ALLOC | SEC_LOAD | SEC_RELOC
| SEC_READONLY | SEC_CODE | SEC_DATA
| SEC_HAS_CONTENTS | SEC_IN_MEMORY), /* Sect flags. */
- 0, /* Symbol_leading_char. */
- ' ', /* AR_pad_char. */
- 15, /* AR_max_namelen. */
+ 0, /* symbol_leading_char */
+ ' ', /* ar_pad_char */
+ 15, /* ar_max_namelen */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
- bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Headers. */
+ bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Hdrs. */
{_bfd_dummy_target, vms_object_p, /* bfd_check_format. */
vms_archive_p, _bfd_dummy_target},
NULL,
- NULL
+ (PTR) 0
};
projects / msp430-binutils.git / blobdiff