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authorRichard Henderson <rth@redhat.com>1999-05-03 07:29:11 +0000
committerRichard Henderson <rth@redhat.com>1999-05-03 07:29:11 +0000
commit252b5132c753830d5fd56823373aed85f2a0db63 (patch)
tree1af963bfd8d3e55167b81def4207f175eaff3a56 /bfd/vms-misc.c
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19990502 sourceware importbinu_ss_19990502
Diffstat (limited to 'bfd/vms-misc.c')
-rw-r--r--bfd/vms-misc.c1145
1 files changed, 1145 insertions, 0 deletions
diff --git a/bfd/vms-misc.c b/bfd/vms-misc.c
new file mode 100644
index 0000000..a5fdae4
--- /dev/null
+++ b/bfd/vms-misc.c
@@ -0,0 +1,1145 @@
+/* vms-misc.c -- Miscellaneous functions for VAX (openVMS/VAX) and
+ EVAX (openVMS/Alpha) files.
+ Copyright 1996, 1997, 1998 Free Software Foundation, Inc.
+
+ Written by Klaus K"ampf (kkaempf@rmi.de)
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+
+#if __STDC__
+#include <stdarg.h>
+#endif
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "bfdlink.h"
+#include "libbfd.h"
+
+#include "vms.h"
+
+/*-----------------------------------------------------------------------------*/
+#if VMS_DEBUG
+/* debug functions */
+
+/* debug function for all vms extensions
+ evaluates environment variable VMS_DEBUG for a
+ numerical value on the first call
+ all error levels below this value are printed
+
+ levels:
+ 1 toplevel bfd calls (functions from the bfd vector)
+ 2 functions called by bfd calls
+ ...
+ 9 almost everything
+
+ level is also identation level. Indentation is performed
+ if level > 0
+ */
+
+#if __STDC__
+void
+_bfd_vms_debug (int level, char *format, ...)
+{
+ static int min_level = -1;
+ static FILE *output = NULL;
+ char *eptr;
+ va_list args;
+ int abslvl = (level > 0)?level:-level;
+
+ if (min_level == -1)
+ {
+ if ((eptr = getenv("VMS_DEBUG")) != NULL)
+ {
+ min_level = atoi(eptr);
+ output = stderr;
+ }
+ else
+ min_level = 0;
+ }
+ if (output == NULL)
+ return;
+ if (abslvl > min_level)
+ return;
+
+ while(--level>0)
+ fprintf(output, " ");
+ va_start(args, format);
+ vfprintf(output, format, args);
+ fflush(output);
+ va_end(args);
+
+ return;
+}
+
+#else /* not __STDC__ */
+
+void
+_bfd_vms_debug (level, format, a1, a2, a3, a4, a5, a6)
+ int level;
+ char *format;
+ long a1; long a2; long a3;
+ long a4; long a5; long a6;
+{
+ static int min_level = -1;
+ static FILE *output = NULL;
+ char *eptr;
+
+ if (min_level == -1)
+ {
+ if ((eptr = getenv("VMS_DEBUG")) != NULL)
+ {
+ min_level = atoi(eptr);
+ output = stderr;
+ }
+ else
+ min_level = 0;
+ }
+ if (output == NULL)
+ return;
+ if (level > min_level)
+ return;
+
+ while(--level>0)
+ fprintf(output, " ");
+ fprintf(output, format, a1, a2, a3, a4, a5, a6);
+ fflush(output);
+
+ return;
+}
+#endif /* __STDC__ */
+
+
+/* a debug function
+ hex dump 'size' bytes starting at 'ptr' */
+
+void
+_bfd_hexdump (level, ptr, size, offset)
+ int level;
+ unsigned char *ptr;
+ int size;
+ int offset;
+{
+ unsigned char *lptr = ptr;
+ int count = 0;
+ long start = offset;
+
+ while (size-- > 0)
+ {
+ if ((count%16) == 0)
+ vms_debug (level, "%08lx:", start);
+ vms_debug (-level, " %02x", *ptr++);
+ count++;
+ start++;
+ if (size == 0)
+ {
+ while ((count%16) != 0)
+ {
+ vms_debug (-level, " ");
+ count++;
+ }
+ }
+ if ((count%16) == 0)
+ {
+ vms_debug (-level, " ");
+ while (lptr < ptr)
+ {
+ vms_debug (-level, "%c", (*lptr < 32)?'.':*lptr);
+ lptr++;
+ }
+ vms_debug (-level, "\n");
+ }
+ }
+ if ((count%16) != 0)
+ vms_debug (-level, "\n");
+
+ return;
+}
+#endif
+
+
+/* hash functions
+
+ These are needed when reading an object file. */
+
+/* allocate new vms_hash_entry
+ keep the symbol name and a pointer to the bfd symbol in the table */
+
+struct bfd_hash_entry *
+_bfd_vms_hash_newfunc (entry, table, string)
+ struct bfd_hash_entry *entry;
+ struct bfd_hash_table *table;
+ const char *string;
+{
+ vms_symbol_entry *ret;
+
+#if VMS_DEBUG
+ vms_debug (5, "_bfd_vms_hash_newfunc(%p, %p, %s)\n", entry, table, string);
+#endif
+
+ if (entry == (struct bfd_hash_entry *)NULL)
+ {
+ ret = (vms_symbol_entry *)
+ bfd_hash_allocate (table, sizeof (vms_symbol_entry));
+ if (ret == (vms_symbol_entry *) NULL)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return (struct bfd_hash_entry *)NULL;
+ }
+ }
+
+ /* Call the allocation method of the base class. */
+
+ ret = (vms_symbol_entry *) bfd_hash_newfunc ((struct bfd_hash_entry *)ret, table, string);
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_hash_newfunc ret %p\n", ret);
+#endif
+
+ ret->symbol = (asymbol *)NULL;
+
+ return (struct bfd_hash_entry *)ret;
+}
+
+
+/* object file input functions */
+
+/* Return type and length from record header (buf) on Alpha. */
+
+void
+_bfd_vms_get_header_values (abfd, buf, type, length)
+ bfd *abfd;
+ unsigned char *buf;
+ int *type;
+ int *length;
+{
+ if (type != 0)
+ *type = bfd_getl16 (buf);
+ buf += 2;
+ if (length != 0)
+ *length = bfd_getl16 (buf);
+
+#if VMS_DEBUG
+ vms_debug (10, "_bfd_vms_get_header_values type %x, length %x\n", (type?*type:0), (length?*length:0));
+#endif
+
+
+ return;
+}
+
+
+/* Get next record from object file to vms_buf
+ set PRIV(buf_size) and return it
+
+ this is a little tricky since it should be portable.
+
+ the openVMS object file has 'variable length' which means that
+ read() returns data in chunks of (hopefully) correct and expected
+ size. The linker (and other tools on vms) depend on that. Unix doesn't
+ know about 'formatted' files, so reading and writing such an object
+ file in a unix environment is not trivial.
+
+ With the tool 'file' (available on all vms ftp sites), one
+ can view and change the attributes of a file. Changing from
+ 'variable length' to 'fixed length, 512 bytes' reveals the
+ record length at the first 2 bytes of every record. The same
+ happens during the transfer of object files from vms to unix,
+ at least with ucx, dec's implementation of tcp/ip.
+
+ The vms format repeats the length at bytes 2 & 3 of every record.
+
+ On the first call (file_format == FF_UNKNOWN) we check if
+ the first and the third byte pair (!) of the record match.
+ If they do it's an object file in an unix environment or with
+ wrong attributes (FF_FOREIGN), else we should be in a vms
+ environment where read() returns the record size (FF_NATIVE).
+
+ reading is always done in 2 steps.
+ first just the record header is read and the length extracted
+ by get_header_values
+ then the read buffer is adjusted and the remaining bytes are
+ read in.
+
+ all file i/o is always done on even file positions */
+
+int
+_bfd_vms_get_record (abfd)
+ bfd *abfd;
+{
+ int test_len, test_start, remaining;
+ unsigned char *vms_buf;
+
+#if VMS_DEBUG
+ vms_debug (8, "_bfd_vms_get_record\n");
+#endif
+
+ /* minimum is 6 bytes on Alpha
+ (2 bytes length, 2 bytes record id, 2 bytes length repeated)
+
+ on VAX there's no length information in the record
+ so start with OBJ_S_C_MAXRECSIZ */
+
+ if (PRIV(buf_size) == 0)
+ {
+ if (PRIV(is_vax))
+ {
+ PRIV(vms_buf) = (unsigned char *) malloc (OBJ_S_C_MAXRECSIZ);
+ PRIV(buf_size) = OBJ_S_C_MAXRECSIZ;
+ PRIV(file_format) = FF_VAX;
+ }
+ else
+ PRIV(vms_buf) = (unsigned char *) malloc (6);
+ }
+
+ vms_buf = PRIV(vms_buf);
+
+ if (vms_buf == 0)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return -1;
+ }
+
+ switch (PRIV(file_format))
+ {
+ case FF_UNKNOWN:
+ case FF_FOREIGN:
+ test_len = 6; /* probe 6 bytes */
+ test_start = 2; /* where the record starts */
+ break;
+
+ case FF_NATIVE:
+ test_len = 4;
+ test_start = 0;
+ break;
+
+ case FF_VAX:
+ test_len = 0;
+ test_start = 0;
+ break;
+ }
+
+ /* skip odd alignment byte */
+
+ if (bfd_tell (abfd) & 1)
+ {
+ if (bfd_read (PRIV(vms_buf), 1, 1, abfd) != 1)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return 0;
+ }
+ }
+
+ /* read the record header on Alpha. */
+
+ if ((test_len != 0)
+ && (bfd_read (PRIV(vms_buf), 1, test_len, abfd) != test_len))
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return 0;
+ }
+
+ /* check file format on first call */
+
+ if (PRIV(file_format) == FF_UNKNOWN)
+ { /* record length repeats ? */
+ if ( (vms_buf[0] == vms_buf[4])
+ && (vms_buf[1] == vms_buf[5]))
+ {
+ PRIV(file_format) = FF_FOREIGN; /* Y: foreign environment */
+ test_start = 2;
+ }
+ else
+ {
+ PRIV(file_format) = FF_NATIVE; /* N: native environment */
+ test_start = 0;
+ }
+ }
+
+ if (PRIV(is_vax))
+ {
+ PRIV(rec_length) = bfd_read (vms_buf, 1, PRIV(buf_size), abfd);
+ if (PRIV(rec_length) <= 0)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return 0;
+ }
+ PRIV(vms_rec) = vms_buf;
+ }
+ else /* Alpha */
+ {
+ /* extract vms record length */
+
+ _bfd_vms_get_header_values (abfd, vms_buf+test_start, NULL,
+ &PRIV(rec_length));
+
+ if (PRIV(rec_length) <= 0)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return 0;
+ }
+
+ /* that's what the linker manual says */
+
+ if (PRIV(rec_length) > EOBJ_S_C_MAXRECSIZ)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return 0;
+ }
+
+ /* adjust the buffer */
+
+ if (PRIV(rec_length) > PRIV(buf_size))
+ {
+ PRIV(vms_buf) = (unsigned char *) realloc (vms_buf, PRIV(rec_length));
+ vms_buf = PRIV(vms_buf);
+ if (vms_buf == 0)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return -1;
+ }
+ PRIV(buf_size) = PRIV(rec_length);
+ }
+
+ /* read the remaining record */
+
+ remaining = PRIV(rec_length) - test_len + test_start;
+
+#if VMS_DEBUG
+ vms_debug (10, "bfd_read remaining %d\n", remaining);
+#endif
+ if (bfd_read (vms_buf + test_len, 1, remaining, abfd) != remaining)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return 0;
+ }
+ PRIV(vms_rec) = vms_buf + test_start;
+ }
+
+#if VMS_DEBUG
+ vms_debug (11, "bfd_read rec_length %d\n", PRIV(rec_length));
+#endif
+
+ return PRIV(rec_length);
+}
+
+
+/* get next vms record from file
+ update vms_rec and rec_length to new (remaining) values */
+
+int
+_bfd_vms_next_record (abfd)
+ bfd *abfd;
+{
+#if VMS_DEBUG
+ vms_debug (8, "_bfd_vms_next_record (len %d, size %d)\n",
+ PRIV(rec_length), PRIV(rec_size));
+#endif
+
+ if (PRIV(rec_length) > 0)
+ {
+ PRIV(vms_rec) += PRIV(rec_size);
+ }
+ else
+ {
+ if (_bfd_vms_get_record (abfd) <= 0)
+ return -1;
+ }
+
+ if (PRIV(is_vax))
+ {
+ PRIV(rec_type) = *(PRIV(vms_rec));
+ PRIV(rec_size) = PRIV(rec_length);
+ }
+ else
+ {
+ _bfd_vms_get_header_values (abfd, PRIV(vms_rec), &PRIV(rec_type),
+ &PRIV(rec_size));
+ }
+ PRIV(rec_length) -= PRIV(rec_size);
+
+#if VMS_DEBUG
+ vms_debug (8, "_bfd_vms_next_record: rec %p, size %d, length %d, type %d\n",
+ PRIV(vms_rec), PRIV(rec_size), PRIV(rec_length),
+ PRIV(rec_type));
+#endif
+
+ return PRIV(rec_type);
+}
+
+
+
+/* Copy sized string (string with fixed length) to new allocated area
+ size is string length (size of record) */
+
+char *
+_bfd_vms_save_sized_string (str, size)
+ unsigned char *str;
+ int size;
+{
+ char *newstr = bfd_malloc (size + 1);
+
+ if (newstr == NULL)
+ return 0;
+ strncpy (newstr, (char *)str, size);
+ newstr[size] = 0;
+
+ return newstr;
+}
+
+/* Copy counted string (string with length at first byte) to new allocated area
+ ptr points to length byte on entry */
+
+char *
+_bfd_vms_save_counted_string (ptr)
+ unsigned char *ptr;
+{
+ int len = *ptr++;
+
+ return _bfd_vms_save_sized_string (ptr, len);
+}
+
+
+/* stack routines for vms ETIR commands */
+
+/* Push value and section index */
+
+void
+_bfd_vms_push (abfd, val, psect)
+ bfd *abfd;
+ uquad val;
+ int psect;
+{
+ static int last_psect;
+
+#if VMS_DEBUG
+ vms_debug (4, "<push %016lx(%d) at %d>\n", val, psect, PRIV(stackptr));
+#endif
+
+ if (psect >= 0)
+ last_psect = psect;
+
+ PRIV(stack[PRIV(stackptr)]).value = val;
+ PRIV(stack[PRIV(stackptr)]).psect = last_psect;
+ PRIV(stackptr)++;
+ if (PRIV(stackptr) >= STACKSIZE)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ (*_bfd_error_handler) (_("Stack overflow (%d) in _bfd_vms_push"), PRIV(stackptr));
+ exit (1);
+ }
+ return;
+}
+
+
+/* Pop value and section index */
+
+uquad
+_bfd_vms_pop (abfd, psect)
+ bfd *abfd;
+ int *psect;
+{
+ uquad value;
+
+ if (PRIV(stackptr) == 0)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ (*_bfd_error_handler) (_("Stack underflow in _bfd_vms_pop"));
+ exit (1);
+ }
+ PRIV(stackptr)--;
+ value = PRIV(stack[PRIV(stackptr)]).value;
+ if ((psect != NULL) && (PRIV(stack[PRIV(stackptr)]).psect >= 0))
+ *psect = PRIV(stack[PRIV(stackptr)]).psect;
+
+#if VMS_DEBUG
+ vms_debug (4, "<pop %016lx(%d)>\n", value, PRIV(stack[PRIV(stackptr)]).psect);
+#endif
+
+ return value;
+}
+
+
+/* object file output functions */
+
+/* GAS tends to write sections in little chunks (bfd_set_section_contents)
+ which we can't use directly. So we save the little chunks in linked
+ lists (one per section) and write them later. */
+
+/* Add a new vms_section structure to vms_section_table
+ - forward chaining - */
+
+static vms_section *
+add_new_contents (abfd, section)
+ bfd *abfd;
+ sec_ptr section;
+{
+ vms_section *sptr, *newptr;
+
+ sptr = PRIV(vms_section_table)[section->index];
+ if (sptr != NULL)
+ return sptr;
+
+ newptr = (vms_section *) bfd_malloc (sizeof (vms_section));
+ if (newptr == (vms_section *) NULL)
+ return NULL;
+ newptr->contents = (unsigned char *) bfd_alloc (abfd, (int)section->_raw_size);
+ if (newptr->contents == (unsigned char *)NULL)
+ return NULL;
+ newptr->offset = 0;
+ newptr->size = section->_raw_size;
+ newptr->next = 0;
+ PRIV(vms_section_table)[section->index] = newptr;
+ return newptr;
+}
+
+
+/* Save section data & offset to an vms_section structure
+ vms_section_table[] holds the vms_section chain */
+
+boolean
+_bfd_save_vms_section (abfd, section, data, offset, count)
+ bfd *abfd;
+ sec_ptr section;
+ PTR data;
+ file_ptr offset;
+ bfd_size_type count;
+{
+ vms_section *sptr;
+
+ if (section->index >= VMS_SECTION_COUNT)
+ {
+ bfd_set_error (bfd_error_nonrepresentable_section);
+ return false;
+ }
+ if (count == (bfd_size_type)0)
+ return true;
+ sptr = add_new_contents (abfd, section);
+ if (sptr == NULL)
+ return false;
+ memcpy (sptr->contents + offset, data, (size_t) count);
+
+ return true;
+}
+
+
+/* Get vms_section pointer to saved contents for section # index */
+
+vms_section *
+_bfd_get_vms_section (abfd, index)
+ bfd *abfd;
+ int index;
+{
+ if (index >= VMS_SECTION_COUNT)
+ {
+ bfd_set_error (bfd_error_nonrepresentable_section);
+ return NULL;
+ }
+ return PRIV(vms_section_table)[index];
+}
+
+
+/* Object output routines */
+
+/* Begin new record or record header
+ write 2 bytes rectype
+ write 2 bytes record length (filled in at flush)
+ write 2 bytes header type (ommitted if rechead == -1) */
+
+void
+_bfd_vms_output_begin (abfd, rectype, rechead)
+ bfd *abfd;
+ int rectype;
+ int rechead;
+{
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_begin(type %d, head %d)\n", rectype,
+ rechead);
+#endif
+
+ _bfd_vms_output_short (abfd,rectype);
+
+ /* save current output position to fill in lenght later */
+
+ if (PRIV(push_level) > 0)
+ PRIV(length_pos) = PRIV(output_size);
+
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_begin: length_pos = %d\n",
+ PRIV(length_pos));
+#endif
+
+ _bfd_vms_output_short (abfd,0); /* placeholder for length */
+
+ if (rechead != -1)
+ _bfd_vms_output_short (abfd,rechead);
+
+ return;
+}
+
+
+/* Set record/subrecord alignment */
+
+void
+_bfd_vms_output_alignment (abfd, alignto)
+ bfd *abfd;
+ int alignto;
+{
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_alignment(%d)\n", alignto);
+#endif
+
+ PRIV(output_alignment) = alignto;
+ return;
+}
+
+
+/* Prepare for subrecord fields */
+
+void
+_bfd_vms_output_push (abfd)
+ bfd *abfd;
+{
+#if VMS_DEBUG
+ vms_debug (6, "vms_output_push(pushed_size = %d)\n", PRIV(output_size));
+#endif
+
+ PRIV(push_level)++;
+ PRIV(pushed_size) = PRIV(output_size);
+ return;
+}
+
+
+/* End of subrecord fields */
+
+void
+_bfd_vms_output_pop (abfd)
+ bfd *abfd;
+{
+#if VMS_DEBUG
+ vms_debug (6, "vms_output_pop(pushed_size = %d)\n", PRIV(pushed_size));
+#endif
+
+ _bfd_vms_output_flush (abfd);
+ PRIV(length_pos) = 2;
+
+#if VMS_DEBUG
+ vms_debug (6, "vms_output_pop: length_pos = %d\n", PRIV(length_pos));
+#endif
+
+ PRIV(pushed_size) = 0;
+ PRIV(push_level)--;
+ return;
+}
+
+
+/* Flush unwritten output, ends current record */
+
+void
+_bfd_vms_output_flush (abfd)
+ bfd *abfd;
+{
+ int real_size = PRIV(output_size);
+ int aligncount;
+ int length;
+
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_flush(real_size = %d, pushed_size %d at lenpos %d)\n",
+ real_size, PRIV(pushed_size), PRIV(length_pos));
+#endif
+
+ if (PRIV(push_level) > 0)
+ length = real_size - PRIV(pushed_size);
+ else
+ length = real_size;
+
+ if (length == 0)
+ return;
+ aligncount = (PRIV(output_alignment)
+ - (length % PRIV(output_alignment))) % PRIV(output_alignment);
+
+#if VMS_DEBUG
+ vms_debug (6, "align: adding %d bytes\n", aligncount);
+#endif
+
+ while(aligncount-- > 0)
+ {
+ PRIV(output_buf)[real_size++] = 0;
+#if 0
+ /* this is why I *love* vms: inconsistency :-}
+ alignment is added to the subrecord length
+ but not to the record length */
+ if (PRIV(push_level) > 0)
+#endif
+ length++;
+ }
+
+ /* put length to buffer */
+ PRIV(output_size) = PRIV(length_pos);
+ _bfd_vms_output_short (abfd, (unsigned int)length);
+
+ if (PRIV(push_level) == 0)
+ {
+#ifndef VMS
+ /* write length first, see FF_FOREIGN in the input routines */
+ fwrite (PRIV(output_buf)+2, 2, 1, (FILE *)abfd->iostream);
+#endif
+ fwrite (PRIV(output_buf), real_size, 1, (FILE *)abfd->iostream);
+
+ PRIV(output_size) = 0;
+ }
+ else
+ {
+ PRIV(output_size) = real_size;
+ PRIV(pushed_size) = PRIV(output_size);
+ }
+
+ return;
+}
+
+
+/* End record output */
+
+void
+_bfd_vms_output_end (abfd)
+ bfd *abfd;
+{
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_end\n");
+#endif
+
+ _bfd_vms_output_flush (abfd);
+
+ return;
+}
+
+
+/* check remaining buffer size
+
+ return what's left. */
+
+int
+_bfd_vms_output_check (abfd, size)
+ bfd *abfd;
+ int size;
+{
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_check(%d)\n", size);
+#endif
+
+ return (MAX_OUTREC_SIZE - (PRIV(output_size) + size + MIN_OUTREC_LUFT));
+}
+
+
+/* Output byte (8 bit) value */
+
+void
+_bfd_vms_output_byte (abfd, value)
+ bfd *abfd;
+ unsigned int value;
+{
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_byte(%02x)\n", value);
+#endif
+
+ bfd_put_8 (abfd, value & 0xff, PRIV(output_buf) + PRIV(output_size));
+ PRIV(output_size) += 1;
+ return;
+}
+
+
+/* Output short (16 bit) value */
+
+void
+_bfd_vms_output_short (abfd, value)
+ bfd *abfd;
+ unsigned int value;
+{
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_short (%04x)\n", value);
+#endif
+
+ bfd_put_16 (abfd, value & 0xffff, PRIV(output_buf) + PRIV(output_size));
+ PRIV(output_size) += 2;
+ return;
+}
+
+
+/* Output long (32 bit) value */
+
+void
+_bfd_vms_output_long (abfd, value)
+ bfd *abfd;
+ unsigned long value;
+{
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_long (%08lx)\n", value);
+#endif
+
+ bfd_put_32 (abfd, value, PRIV(output_buf) + PRIV(output_size));
+ PRIV(output_size) += 4;
+ return;
+}
+
+
+/* Output quad (64 bit) value */
+
+void
+_bfd_vms_output_quad (abfd, value)
+ bfd *abfd;
+ uquad value;
+{
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_quad(%016lx)\n", value);
+#endif
+
+ bfd_put_64(abfd, value, PRIV(output_buf) + PRIV(output_size));
+ PRIV(output_size) += 8;
+ return;
+}
+
+
+/* Output c-string as counted string */
+
+void
+_bfd_vms_output_counted (abfd, value)
+ bfd *abfd;
+ char *value;
+{
+int len;
+
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_counted(%s)\n", value);
+#endif
+
+ len = strlen (value);
+ if (len == 0)
+ {
+ (*_bfd_error_handler) (_("_bfd_vms_output_counted called with zero bytes"));
+ return;
+ }
+ if (len > 255)
+ {
+ (*_bfd_error_handler) (_("_bfd_vms_output_counted called with too many bytes"));
+ return;
+ }
+ _bfd_vms_output_byte (abfd, len & 0xff);
+ _bfd_vms_output_dump (abfd, (unsigned char *)value, len);
+}
+
+
+/* Output character area */
+
+void
+_bfd_vms_output_dump (abfd, data, length)
+ bfd *abfd;
+ unsigned char *data;
+ int length;
+{
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_dump(%d)\n", length);
+#endif
+
+ if (length == 0)
+ return;
+
+ memcpy (PRIV(output_buf) + PRIV(output_size), data, length);
+ PRIV(output_size) += length;
+
+ return;
+}
+
+
+/* Output count bytes of value */
+
+void
+_bfd_vms_output_fill (abfd, value, count)
+ bfd *abfd;
+ int value;
+ int count;
+{
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_fill(val %02x times %d)\n", value, count);
+#endif
+
+ if (count == 0)
+ return;
+ memset (PRIV(output_buf) + PRIV(output_size), value, count);
+ PRIV(output_size) += count;
+
+ return;
+}
+
+/* this hash routine borrowed from GNU-EMACS, and strengthened slightly ERY*/
+
+static int
+hash_string (ptr)
+ const char *ptr;
+{
+ register const unsigned char *p = (unsigned char *) ptr;
+ register const unsigned char *end = p + strlen (ptr);
+ register unsigned char c;
+ register int hash = 0;
+
+ while (p != end)
+ {
+ c = *p++;
+ hash = ((hash << 3) + (hash << 15) + (hash >> 28) + c);
+ }
+ return hash;
+}
+
+/* Generate a length-hashed VMS symbol name (limited to maxlen chars). */
+
+char *
+_bfd_vms_length_hash_symbol (abfd, in, maxlen)
+ bfd *abfd;
+ const char *in;
+ int maxlen;
+{
+ long int init;
+ long int result;
+ int in_len;
+ char *pnt = 0;
+ char *new_name;
+ const char *old_name;
+ int i;
+ static char outbuf[EOBJ_S_C_SYMSIZ+1];
+ char *out = outbuf;
+
+#if VMS_DEBUG
+ vms_debug(4, "_bfd_vms_length_hash_symbol \"%s\"\n", in);
+#endif
+
+ if (maxlen > EOBJ_S_C_SYMSIZ)
+ maxlen = EOBJ_S_C_SYMSIZ;
+
+ new_name = out; /* save this for later. */
+
+ /* We may need to truncate the symbol, save the hash for later. */
+
+ in_len = strlen (in);
+
+ result = (in_len > maxlen) ? hash_string (in) : 0;
+
+ old_name = in;
+
+ /* Do the length checking. */
+
+ if (in_len <= maxlen)
+ {
+ i = in_len;
+ }
+ else
+ {
+ if (PRIV(flag_hash_long_names))
+ i = maxlen-9;
+ else
+ i = maxlen;
+ }
+
+ strncpy (out, in, i);
+ in += i;
+ out += i;
+
+ if ((in_len > maxlen)
+ && PRIV(flag_hash_long_names))
+ sprintf (out, "_%08x", result);
+ else
+ *out = 0;
+
+#if VMS_DEBUG
+ vms_debug(4, "--> [%d]\"%s\"\n", strlen (outbuf), outbuf);
+#endif
+
+ if (in_len > maxlen
+ && PRIV(flag_hash_long_names)
+ && PRIV(flag_show_after_trunc))
+ printf (_("Symbol %s replaced by %s\n"), old_name, new_name);
+
+ return outbuf;
+}
+
+
+/* Allocate and initialize a new symbol. */
+
+static asymbol *
+new_symbol (abfd, name)
+ bfd *abfd;
+ char *name;
+{
+ asymbol *symbol;
+
+#if VMS_DEBUG
+ _bfd_vms_debug (7, "new_symbol %s\n", name);
+#endif
+
+ symbol = _bfd_vms_make_empty_symbol (abfd);
+ if (symbol == 0)
+ return symbol;
+ symbol->name = name;
+ symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME);
+
+ return symbol;
+}
+
+
+/* Allocate and enter a new private symbol. */
+
+vms_symbol_entry *
+_bfd_vms_enter_symbol (abfd, name)
+ bfd *abfd;
+ char *name;
+{
+ vms_symbol_entry *entry;
+
+#if VMS_DEBUG
+ _bfd_vms_debug (6, "_bfd_vms_enter_symbol %s\n", name);
+#endif
+
+ entry = (vms_symbol_entry *)
+ bfd_hash_lookup (PRIV(vms_symbol_table), name, false, false);
+ if (entry == 0)
+ {
+#if VMS_DEBUG
+ _bfd_vms_debug (8, "creating hash entry for %s\n", name);
+#endif
+ entry = (vms_symbol_entry *)bfd_hash_lookup (PRIV(vms_symbol_table), name, true, false);
+ if (entry != 0)
+ {
+ asymbol *symbol;
+ symbol = new_symbol (abfd, name);
+ if (symbol != 0)
+ {
+ entry->symbol = symbol;
+ PRIV(gsd_sym_count)++;
+ abfd->symcount++;
+ }
+ else
+ entry = 0;
+ }
+ else
+ (*_bfd_error_handler) (_("failed to enter %s"), name);
+ }
+ else
+ {
+#if VMS_DEBUG
+ _bfd_vms_debug (8, "found hash entry for %s\n", name);
+#endif
+ }
+
+#if VMS_DEBUG
+ _bfd_vms_debug (7, "-> entry %p, entry->symbol %p\n", entry, entry->symbol);
+#endif
+ return entry;
+}