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authorJing Yu <jingyu@google.com>2011-01-30 22:09:54 -0800
committerJing Yu <jingyu@google.com>2011-01-30 22:09:54 -0800
commita9a8b9e7e4aee6a3846ba62703283d10849bc0a6 (patch)
treebfd550c5e600ab0c227d3615fb5183127604870d /binutils-20100303/bfd/vms-misc.c
parent8a5a8339de3149b7f99caf08e9cb72467d60cd01 (diff)
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Upgrade binutils and gold.
upgrade binutils-2.19 to binutils-2.20.1 upgrade gold to a relatively new version binutils-20100303 Before, both binutils and gold were built from binutils-2.19. Now binutils will be built from binutils-2.20.1 and gold will be built from binutils-20100303. Change-Id: Ibd0130756723337d2b4783d5b1d5e5b02a1adc83
Diffstat (limited to 'binutils-20100303/bfd/vms-misc.c')
-rw-r--r--binutils-20100303/bfd/vms-misc.c1047
1 files changed, 1047 insertions, 0 deletions
diff --git a/binutils-20100303/bfd/vms-misc.c b/binutils-20100303/bfd/vms-misc.c
new file mode 100644
index 00000000..47e59855
--- /dev/null
+++ b/binutils-20100303/bfd/vms-misc.c
@@ -0,0 +1,1047 @@
+/* vms-misc.c -- BFD back-end for VMS/VAX (openVMS/VAX) and
+ EVAX (openVMS/Alpha) files.
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+ 2007, 2008, 2009 Free Software Foundation, Inc.
+
+ Miscellaneous functions.
+
+ 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#if __STDC__
+#include <stdarg.h>
+#endif
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "bfdlink.h"
+#include "libbfd.h"
+
+#include "vms.h"
+
+#define MIN(a,b) ((a) < (b) ? (a) : (b))
+
+static int hash_string PARAMS ((const char *));
+static asymbol *new_symbol PARAMS ((bfd *, char *));
+static void maybe_adjust_record_pointer_for_object PARAMS ((bfd *));
+static int vms_get_remaining_object_record PARAMS ((bfd *, int ));
+static int vms_get_remaining_image_record PARAMS ((bfd *, int ));
+
+#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 indentation level. Indentation is performed
+ if level > 0. */
+
+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);
+}
+
+/* A debug function
+ hex dump 'size' bytes starting at 'ptr'. */
+
+void
+_bfd_hexdump (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");
+}
+#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 (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 == NULL)
+ {
+ ret = (vms_symbol_entry *)
+ bfd_hash_allocate (table, sizeof (vms_symbol_entry));
+ if (ret == NULL)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
+ }
+ entry = (struct bfd_hash_entry *) ret;
+ }
+
+ /* Call the allocation method of the base class. */
+ ret = (vms_symbol_entry *) bfd_hash_newfunc (entry, table, string);
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_hash_newfunc ret %p\n", ret);
+#endif
+
+ ret->symbol = NULL;
+
+ return (struct bfd_hash_entry *)ret;
+}
+
+/* Object file input functions. */
+
+/* Return type and size from record header (buf) on Alpha. */
+
+void
+_bfd_vms_get_header_values (bfd * abfd ATTRIBUTE_UNUSED,
+ unsigned char *buf,
+ int *type,
+ int *size)
+{
+ if (type)
+ *type = bfd_getl16 (buf);
+
+ if (size)
+ *size = bfd_getl16 (buf+2);
+
+#if VMS_DEBUG
+ vms_debug (10, "_bfd_vms_get_header_values type %x, size %x\n",
+ type ? *type : 0, size ? *size : 0);
+#endif
+}
+
+/* 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 size at the first 2 bytes of every record. The same
+ may happen during the transfer of object files from VMS to Unix,
+ at least with UCX, the DEC implementation of TCP/IP.
+
+ The VMS format repeats the size 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:
+ 1. first just the record header is read and the size extracted,
+ 2. then the read buffer is adjusted and the remaining bytes are
+ read in.
+
+ All file I/O is done on even file positions. */
+
+#define VMS_OBJECT_ADJUSTMENT 2
+
+static void
+maybe_adjust_record_pointer_for_object (bfd *abfd)
+{
+ /* Set the file format once for all on the first invocation. */
+ if (PRIV (file_format) == FF_UNKNOWN)
+ {
+ if (PRIV (vms_rec)[0] == PRIV (vms_rec)[4]
+ && PRIV (vms_rec)[1] == PRIV (vms_rec)[5])
+ PRIV (file_format) = FF_FOREIGN;
+ else
+ PRIV (file_format) = FF_NATIVE;
+ }
+
+ /* The adjustment is needed only in an Unix environment. */
+ if (PRIV (file_format) == FF_FOREIGN)
+ PRIV (vms_rec) += VMS_OBJECT_ADJUSTMENT;
+}
+
+/* Get first record from file and return the file type. */
+
+int
+_bfd_vms_get_first_record (bfd *abfd)
+{
+ unsigned int test_len;
+
+#if VMS_DEBUG
+ vms_debug (8, "_bfd_vms_get_first_record\n");
+#endif
+
+ if (PRIV (is_vax))
+ test_len = 0;
+ else
+ /* Minimum is 6 bytes for objects (2 bytes size, 2 bytes record id,
+ 2 bytes size repeated) and 12 bytes for images (4 bytes major id,
+ 4 bytes minor id, 4 bytes length). */
+ test_len = 12;
+
+ /* Size the main buffer. */
+ if (PRIV (buf_size) == 0)
+ {
+ /* On VAX there's no size information in the record, so
+ start with OBJ_S_C_MAXRECSIZ. */
+ bfd_size_type amt = (test_len ? test_len : OBJ_S_C_MAXRECSIZ);
+ PRIV (vms_buf) = (unsigned char *) bfd_malloc (amt);
+ PRIV (buf_size) = amt;
+ }
+
+ /* Initialize the record pointer. */
+ PRIV (vms_rec) = PRIV (vms_buf);
+
+ /* We only support modules on VAX. */
+ if (PRIV (is_vax))
+ {
+ if (vms_get_remaining_object_record (abfd, test_len) <= 0)
+ return FT_UNKNOWN;
+
+#if VMS_DEBUG
+ vms_debug (2, "file type is VAX module\n");
+#endif
+
+ return FT_MODULE;
+ }
+
+ if (bfd_bread (PRIV (vms_buf), test_len, abfd) != test_len)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return FT_UNKNOWN;
+ }
+
+ /* Is it an image? */
+ if ((bfd_getl32 (PRIV (vms_rec)) == EIHD_S_K_MAJORID)
+ && (bfd_getl32 (PRIV (vms_rec) + 4) == EIHD_S_K_MINORID))
+ {
+ if (vms_get_remaining_image_record (abfd, test_len) <= 0)
+ return FT_UNKNOWN;
+
+#if VMS_DEBUG
+ vms_debug (2, "file type is image\n");
+#endif
+
+ return FT_IMAGE;
+ }
+
+ /* Assume it's a module and adjust record pointer if necessary. */
+ maybe_adjust_record_pointer_for_object (abfd);
+
+ /* But is it really a module? */
+ if (bfd_getl16 (PRIV (vms_rec)) <= EOBJ_S_C_MAXRECTYP
+ && bfd_getl16 (PRIV (vms_rec) + 2) <= EOBJ_S_C_MAXRECSIZ)
+ {
+ if (vms_get_remaining_object_record (abfd, test_len) <= 0)
+ return FT_UNKNOWN;
+
+#if VMS_DEBUG
+ vms_debug (2, "file type is module\n");
+#endif
+
+ return FT_MODULE;
+ }
+
+#if VMS_DEBUG
+ vms_debug (2, "file type is unknown\n");
+#endif
+
+ return FT_UNKNOWN;
+}
+
+/* Implement step #1 of the object record reading procedure.
+ Return the record type or -1 on failure. */
+
+int
+_bfd_vms_get_object_record (bfd *abfd)
+{
+ unsigned int test_len;
+ int type;
+
+#if VMS_DEBUG
+ vms_debug (8, "_bfd_vms_get_obj_record\n");
+#endif
+
+ if (PRIV (is_vax))
+ test_len = 0;
+ else
+ {
+ int off = 0;
+
+ /* See _bfd_vms_get_first_record. */
+ test_len = 6;
+
+ /* Skip odd alignment byte. */
+ if (bfd_tell (abfd) & 1)
+ {
+ if (bfd_bread (PRIV (vms_buf), 1, abfd) != 1)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return -1;
+ }
+ /* Alignment byte may be present or not. This is not easy to
+ detect but all object record types are not 0 (on Alpha VMS).
+ We also hope that pad byte is 0. */
+ if (PRIV (vms_buf)[0])
+ off = 1;
+ }
+
+ /* Read the record header */
+ if (bfd_bread (PRIV (vms_buf) + off, test_len - off, abfd)
+ != test_len - off)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return -1;
+ }
+
+ /* Reset the record pointer. */
+ PRIV (vms_rec) = PRIV (vms_buf);
+ maybe_adjust_record_pointer_for_object (abfd);
+ }
+
+ if (vms_get_remaining_object_record (abfd, test_len) <= 0)
+ return -1;
+
+ if (PRIV (is_vax))
+ type = PRIV (vms_rec) [0];
+ else
+ type = bfd_getl16 (PRIV (vms_rec));
+
+#if VMS_DEBUG
+ vms_debug (8, "_bfd_vms_get_obj_record: rec %p, size %d, type %d\n",
+ PRIV (vms_rec), PRIV (rec_size), type);
+#endif
+
+ return type;
+}
+
+/* Implement step #2 of the object record reading procedure.
+ Return the size of the record or 0 on failure. */
+
+static int
+vms_get_remaining_object_record (bfd *abfd, int read_so_far)
+{
+#if VMS_DEBUG
+ vms_debug (8, "vms_get_remaining_obj_record\n");
+#endif
+
+ if (PRIV (is_vax))
+ {
+ if (read_so_far != 0)
+ abort ();
+
+ PRIV (rec_size) = bfd_bread (PRIV (vms_buf), PRIV (buf_size), abfd);
+
+ if (PRIV (rec_size) <= 0)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return 0;
+ }
+
+ /* Reset the record pointer. */
+ PRIV (vms_rec) = PRIV (vms_buf);
+ }
+ else
+ {
+ unsigned int to_read;
+
+ /* Extract record size. */
+ PRIV (rec_size) = bfd_getl16 (PRIV (vms_rec) + 2);
+
+ if (PRIV (rec_size) <= 0)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return 0;
+ }
+
+ /* That's what the linker manual says. */
+ if (PRIV (rec_size) > EOBJ_S_C_MAXRECSIZ)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return 0;
+ }
+
+ /* Take into account object adjustment. */
+ to_read = PRIV (rec_size);
+ if (PRIV (file_format) == FF_FOREIGN)
+ to_read += VMS_OBJECT_ADJUSTMENT;
+
+ /* Adjust the buffer. */
+ if (to_read > PRIV (buf_size))
+ {
+ PRIV (vms_buf)
+ = (unsigned char *) bfd_realloc (PRIV (vms_buf), to_read);
+ if (PRIV (vms_buf) == NULL)
+ return 0;
+ PRIV (buf_size) = to_read;
+ }
+
+ /* Read the remaining record. */
+ to_read -= read_so_far;
+
+#if VMS_DEBUG
+ vms_debug (8, "vms_get_remaining_obj_record: to_read %d\n", to_read);
+#endif
+
+ if (bfd_bread (PRIV (vms_buf) + read_so_far, to_read, abfd) != to_read)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return 0;
+ }
+
+ /* Reset the record pointer. */
+ PRIV (vms_rec) = PRIV (vms_buf);
+ maybe_adjust_record_pointer_for_object (abfd);
+ }
+
+#if VMS_DEBUG
+ vms_debug (8, "vms_get_remaining_obj_record: size %d\n", PRIV (rec_size));
+#endif
+
+ return PRIV (rec_size);
+}
+
+/* Implement step #2 of the record reading procedure for images.
+ Return the size of the record or 0 on failure. */
+
+static int
+vms_get_remaining_image_record (bfd *abfd, int read_so_far)
+{
+ unsigned int to_read;
+ int remaining;
+
+ /* Extract record size. */
+ PRIV (rec_size) = bfd_getl32 (PRIV (vms_rec) + EIHD_S_L_SIZE);
+
+ if (PRIV (rec_size) > PRIV (buf_size))
+ {
+ PRIV (vms_buf) = bfd_realloc (PRIV (vms_buf), PRIV (rec_size));
+
+ if (PRIV (vms_buf) == NULL)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return 0;
+ }
+
+ PRIV (buf_size) = PRIV (rec_size);
+ }
+
+ /* Read the remaining record. */
+ remaining = PRIV (rec_size) - read_so_far;
+ to_read = MIN (VMS_BLOCK_SIZE - read_so_far, remaining);
+
+ while (remaining > 0)
+ {
+ if (bfd_bread (PRIV (vms_buf) + read_so_far, to_read, abfd) != to_read)
+ {
+ bfd_set_error (bfd_error_file_truncated);
+ return 0;
+ }
+
+ read_so_far += to_read;
+ remaining -= to_read;
+
+ /* Eat trailing 0xff's. */
+ if (remaining > 0)
+ while (PRIV (vms_buf) [read_so_far - 1] == 0xff)
+ read_so_far--;
+
+ to_read = MIN (VMS_BLOCK_SIZE, remaining);
+ }
+
+ /* Reset the record pointer. */
+ PRIV (vms_rec) = PRIV (vms_buf);
+
+ return PRIV (rec_size);
+}
+
+/* Copy sized string (string with fixed size) to new allocated area
+ size is string size (size of record) */
+
+char *
+_bfd_vms_save_sized_string (unsigned char *str, int size)
+{
+ char *newstr = bfd_malloc ((bfd_size_type) size + 1);
+
+ if (newstr == NULL)
+ return NULL;
+ strncpy (newstr, (char *) str, (size_t) size);
+ newstr[size] = 0;
+
+ return newstr;
+}
+
+/* Copy counted string (string with size at first byte) to new allocated area
+ ptr points to size byte on entry */
+
+char *
+_bfd_vms_save_counted_string (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 (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);
+ }
+}
+
+/* Pop value and section index. */
+
+uquad
+_bfd_vms_pop (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 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 (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, (unsigned int) rectype);
+
+ /* Save current output position to fill in length 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
+
+ /* Placeholder for length. */
+ _bfd_vms_output_short (abfd, 0);
+
+ if (rechead != -1)
+ _bfd_vms_output_short (abfd, (unsigned int) rechead);
+}
+
+/* Set record/subrecord alignment. */
+
+void
+_bfd_vms_output_alignment (bfd * abfd, int alignto)
+{
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_alignment (%d)\n", alignto);
+#endif
+
+ PRIV (output_alignment) = alignto;
+}
+
+/* Prepare for subrecord fields. */
+
+void
+_bfd_vms_output_push (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);
+}
+
+/* End of subrecord fields. */
+
+void
+_bfd_vms_output_pop (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)--;
+}
+
+/* Flush unwritten output, ends current record. */
+
+void
+_bfd_vms_output_flush (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;
+ length++;
+ }
+
+ /* Put length to buffer. */
+ PRIV (output_size) = PRIV (length_pos);
+ _bfd_vms_output_short (abfd, (unsigned int) length);
+
+ if (PRIV (push_level) == 0)
+ {
+ /* File is open in undefined (UDF) format on VMS, but ultimately will be
+ converted to variable length (VAR) format. VAR format has a length
+ word first which must be explicitly output in UDF format. */
+ bfd_bwrite (PRIV (output_buf) + 2, 2, abfd);
+ bfd_bwrite (PRIV (output_buf), (size_t) real_size, abfd);
+ PRIV (output_size) = 0;
+ }
+ else
+ {
+ PRIV (output_size) = real_size;
+ PRIV (pushed_size) = PRIV (output_size);
+ }
+}
+
+/* End record output. */
+
+void
+_bfd_vms_output_end (bfd * abfd)
+{
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_end\n");
+#endif
+
+ _bfd_vms_output_flush (abfd);
+}
+
+/* Check remaining buffer size
+
+ Return what's left. */
+
+int
+_bfd_vms_output_check (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 (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;
+}
+
+/* Output short (16 bit) value. */
+
+void
+_bfd_vms_output_short (bfd * abfd, unsigned int value)
+{
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_short (%04x)\n", value);
+#endif
+
+ bfd_put_16 (abfd, (bfd_vma) value & 0xffff,
+ PRIV (output_buf) + PRIV (output_size));
+ PRIV (output_size) += 2;
+}
+
+/* Output long (32 bit) value. */
+
+void
+_bfd_vms_output_long (bfd * abfd, unsigned long value)
+{
+#if VMS_DEBUG
+ vms_debug (6, "_bfd_vms_output_long (%08lx)\n", value);
+#endif
+
+ bfd_put_32 (abfd, (bfd_vma) value, PRIV (output_buf) + PRIV (output_size));
+ PRIV (output_size) += 4;
+}
+
+/* Output quad (64 bit) value. */
+
+void
+_bfd_vms_output_quad (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;
+}
+
+/* Output c-string as counted string. */
+
+void
+_bfd_vms_output_counted (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, (unsigned int) len & 0xff);
+ _bfd_vms_output_dump (abfd, (unsigned char *) value, len);
+}
+
+/* Output character area. */
+
+void
+_bfd_vms_output_dump (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, (size_t) length);
+ PRIV (output_size) += length;
+}
+
+/* Output count bytes of value. */
+
+void
+_bfd_vms_output_fill (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, (size_t) count);
+ PRIV (output_size) += count;
+}
+
+/* This hash routine borrowed from GNU-EMACS, and strengthened slightly. ERY. */
+
+static int
+hash_string (const char *ptr)
+{
+ const unsigned char *p = (unsigned char *) ptr;
+ const unsigned char *end = p + strlen (ptr);
+ unsigned char c;
+ 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 (bfd * abfd, const char *in, int maxlen)
+{
+ unsigned long result;
+ int in_len;
+ 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;
+
+ /* Save this for later. */
+ new_name = out;
+
+ /* 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, (size_t) i);
+ in += i;
+ out += i;
+
+ if ((in_len > maxlen)
+ && PRIV (flag_hash_long_names))
+ sprintf (out, "_%08lx", 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 (bfd * abfd, char *name)
+{
+ asymbol *symbol;
+
+#if VMS_DEBUG
+ _bfd_vms_debug (7, "new_symbol %s\n", name);
+#endif
+
+ symbol = bfd_make_empty_symbol (abfd);
+ if (symbol == 0)
+ return symbol;
+ symbol->name = name;
+ symbol->section = (asection *)(unsigned long)-1;
+
+ return symbol;
+}
+
+/* Allocate and enter a new private symbol. */
+
+vms_symbol_entry *
+_bfd_vms_enter_symbol (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;
+}