Subversion Repositories Kolibri OS

Rev

Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | RSS feed

  1. /* BFD backend for Extended Tektronix Hex Format  objects.
  2.    Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002,
  3.    2003, 2004, 2005, 2006, 2007, 2009, 2011 Free Software Foundation, Inc.
  4.    Written by Steve Chamberlain of Cygnus Support <sac@cygnus.com>.
  5.  
  6.    This file is part of BFD, the Binary File Descriptor library.
  7.  
  8.    This program is free software; you can redistribute it and/or modify
  9.    it under the terms of the GNU General Public License as published by
  10.    the Free Software Foundation; either version 3 of the License, or
  11.    (at your option) any later version.
  12.  
  13.    This program is distributed in the hope that it will be useful,
  14.    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16.    GNU General Public License for more details.
  17.  
  18.    You should have received a copy of the GNU General Public License
  19.    along with this program; if not, write to the Free Software
  20.    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21.    MA 02110-1301, USA.  */
  22.  
  23.  
  24. /* SUBSECTION
  25.         Tektronix Hex Format handling
  26.  
  27.    DESCRIPTION
  28.  
  29.         Tek Hex records can hold symbols and data, but not
  30.         relocations. Their main application is communication with
  31.         devices like PROM programmers and ICE equipment.
  32.  
  33.         It seems that the sections are described as being really big,
  34.         the example I have says that the text section is 0..ffffffff.
  35.         BFD would barf with this, many apps would try to alloc 4GB to
  36.         read in the file.
  37.  
  38.         Tex Hex may contain many sections, but the data which comes in
  39.         has no tag saying which section it belongs to, so we create
  40.         one section for each block of data, called "blknnnn" which we
  41.         stick all the data into.
  42.  
  43.         TekHex may come out of  order and there is no header, so an
  44.         initial scan is required  to discover the minimum and maximum
  45.         addresses used to create the vma and size of the sections we
  46.         create.
  47.         We read in the data into pages of CHUNK_MASK+1 size and read
  48.         them out from that whenever we need to.
  49.  
  50.         Any number of sections may be created for output, we save them
  51.         up and output them when it's time to close the bfd.
  52.  
  53.         A TekHex record looks like:
  54.   EXAMPLE
  55.         %<block length><type><checksum><stuff><cr>
  56.  
  57.   DESCRIPTION
  58.         Where
  59.         o length
  60.         is the number of bytes in the record not including the % sign.
  61.         o type
  62.         is one of:
  63.         3) symbol record
  64.         6) data record
  65.         8) termination record
  66.  
  67.   The data can come out of order, and may be discontigous. This is a
  68.   serial protocol, so big files are unlikely, so we keep a list of 8k chunks.  */
  69.  
  70. #include "sysdep.h"
  71. #include "bfd.h"
  72. #include "libbfd.h"
  73. #include "libiberty.h"
  74.  
  75. typedef struct
  76. {
  77.   bfd_vma low;
  78.   bfd_vma high;
  79. } addr_range_type;
  80.  
  81. typedef struct tekhex_symbol_struct
  82. {
  83.   asymbol symbol;
  84.   struct tekhex_symbol_struct *prev;
  85. } tekhex_symbol_type;
  86.  
  87. static const char digs[] = "0123456789ABCDEF";
  88.  
  89. static char sum_block[256];
  90.  
  91. #define NOT_HEX      20
  92. #define NIBBLE(x)    hex_value(x)
  93. #define HEX(buffer) ((NIBBLE ((buffer)[0]) << 4) + NIBBLE ((buffer)[1]))
  94. #define ISHEX(x)    hex_p(x)
  95. #define TOHEX(d, x) \
  96.   (d)[1] = digs[(x) & 0xf]; \
  97.   (d)[0] = digs[((x)>>4)&0xf];
  98.  
  99. /* Here's an example
  100.    %3A6C6480004E56FFFC4E717063B0AEFFFC6D0652AEFFFC60F24E5E4E75
  101.    %1B3709T_SEGMENT1108FFFFFFFF
  102.    %2B3AB9T_SEGMENT7Dgcc_compiled$1087hello$c10
  103.    %373829T_SEGMENT80int$t1$r1$$214741080char$t2$r2$0$12710
  104.    %373769T_SEGMENT80long$int$t3$r1$$1080unsigned$int$t4$10
  105.    %373CA9T_SEGMENT80long$unsigned$in1080short$int$t6$r1$10
  106.    %373049T_SEGMENT80long$long$int$t71080short$unsigned$i10
  107.    %373A29T_SEGMENT80long$long$unsign1080signed$char$t10$10
  108.    %373D69T_SEGMENT80unsigned$char$t11080float$t12$r1$4$010
  109.    %373D19T_SEGMENT80double$t13$r1$8$1080long$double$t14$10
  110.    %2734D9T_SEGMENT8Bvoid$t15$151035_main10
  111.    %2F3CA9T_SEGMENT81$1081$1681$1E81$21487main$F110
  112.    %2832F9T_SEGMENT83i$18FFFFFFFC81$1481$214
  113.    %07 8 10 10
  114.  
  115.    explanation:
  116.    %3A6C6480004E56FFFC4E717063B0AEFFFC6D0652AEFFFC60F24E5E4E75
  117.     ^ ^^ ^     ^-data
  118.     | || +------ 4 char integer 0x8000
  119.     | |+-------- checksum
  120.     | +--------- type 6 (data record)
  121.     +----------- length 3a chars
  122.    <---------------------- 3a (58 chars) ------------------->
  123.  
  124.    %1B3709T_SEGMENT1108FFFFFFFF
  125.          ^         ^^ ^- 8 character integer 0xffffffff
  126.          |         |+-   1 character integer 0
  127.          |         +--   type 1 symbol (section definition)
  128.          +------------   9 char symbol T_SEGMENT
  129.  
  130.    %2B3AB9T_SEGMENT7Dgcc_compiled$1087hello$c10
  131.    %373829T_SEGMENT80int$t1$r1$$214741080char$t2$r2$0$12710
  132.    %373769T_SEGMENT80long$int$t3$r1$$1080unsigned$int$t4$10
  133.    %373CA9T_SEGMENT80long$unsigned$in1080short$int$t6$r1$10
  134.    %373049T_SEGMENT80long$long$int$t71080short$unsigned$i10
  135.    %373A29T_SEGMENT80long$long$unsign1080signed$char$t10$10
  136.    %373D69T_SEGMENT80unsigned$char$t11080float$t12$r1$4$010
  137.    %373D19T_SEGMENT80double$t13$r1$8$1080long$double$t14$10
  138.    %2734D9T_SEGMENT8Bvoid$t15$151035_main10
  139.    %2F3CA9T_SEGMENT81$1081$1681$1E81$21487main$F110
  140.    %2832F9T_SEGMENT83i$18FFFFFFFC81$1481$214
  141.    %0781010
  142.  
  143.    Turns into
  144.    sac@thepub$ ./objdump -dx -m m68k f
  145.  
  146.    f:     file format tekhex
  147.    -----x--- 9/55728 -134219416 Sep 29 15:13 1995 f
  148.    architecture: UNKNOWN!, flags 0x00000010:
  149.    HAS_SYMS
  150.    start address 0x00000000
  151.    SECTION 0 [D00000000]        : size 00020000 vma 00000000 align 2**0
  152.    ALLOC, LOAD
  153.    SECTION 1 [D00008000]        : size 00002001 vma 00008000 align 2**0
  154.  
  155.    SECTION 2 [T_SEGMENT]        : size ffffffff vma 00000000 align 2**0
  156.  
  157.    SYMBOL TABLE:
  158.    00000000  g       T_SEGMENT gcc_compiled$
  159.    00000000  g       T_SEGMENT hello$c
  160.    00000000  g       T_SEGMENT int$t1$r1$$21474
  161.    00000000  g       T_SEGMENT char$t2$r2$0$127
  162.    00000000  g       T_SEGMENT long$int$t3$r1$$
  163.    00000000  g       T_SEGMENT unsigned$int$t4$
  164.    00000000  g       T_SEGMENT long$unsigned$in
  165.    00000000  g       T_SEGMENT short$int$t6$r1$
  166.    00000000  g       T_SEGMENT long$long$int$t7
  167.    00000000  g       T_SEGMENT short$unsigned$i
  168.    00000000  g       T_SEGMENT long$long$unsign
  169.    00000000  g       T_SEGMENT signed$char$t10$
  170.    00000000  g       T_SEGMENT unsigned$char$t1
  171.    00000000  g       T_SEGMENT float$t12$r1$4$0
  172.    00000000  g       T_SEGMENT double$t13$r1$8$
  173.    00000000  g       T_SEGMENT long$double$t14$
  174.    00000000  g       T_SEGMENT void$t15$15
  175.    00000000  g       T_SEGMENT _main
  176.    00000000  g       T_SEGMENT $
  177.    00000000  g       T_SEGMENT $
  178.    00000000  g       T_SEGMENT $
  179.    00000010  g       T_SEGMENT $
  180.    00000000  g       T_SEGMENT main$F1
  181.    fcffffff  g       T_SEGMENT i$1
  182.    00000000  g       T_SEGMENT $
  183.    00000010  g       T_SEGMENT $
  184.  
  185.    RELOCATION RECORDS FOR [D00000000]: (none)
  186.  
  187.    RELOCATION RECORDS FOR [D00008000]: (none)
  188.  
  189.    RELOCATION RECORDS FOR [T_SEGMENT]: (none)
  190.  
  191.    Disassembly of section D00000000:
  192.    ...
  193.    00008000 ($+)7ff0 linkw fp,#-4
  194.    00008004 ($+)7ff4 nop
  195.    00008006 ($+)7ff6 movel #99,d0
  196.    00008008 ($+)7ff8 cmpl fp@(-4),d0
  197.    0000800c ($+)7ffc blts 00008014 ($+)8004
  198.    0000800e ($+)7ffe addql #1,fp@(-4)
  199.    00008012 ($+)8002 bras 00008006 ($+)7ff6
  200.    00008014 ($+)8004 unlk fp
  201.    00008016 ($+)8006 rts
  202.    ...  */
  203.  
  204. static void
  205. tekhex_init (void)
  206. {
  207.   unsigned int i;
  208.   static bfd_boolean inited = FALSE;
  209.   int val;
  210.  
  211.   if (! inited)
  212.     {
  213.       inited = TRUE;
  214.       hex_init ();
  215.       val = 0;
  216.       for (i = 0; i < 10; i++)
  217.         sum_block[i + '0'] = val++;
  218.  
  219.       for (i = 'A'; i <= 'Z'; i++)
  220.         sum_block[i] = val++;
  221.  
  222.       sum_block['$'] = val++;
  223.       sum_block['%'] = val++;
  224.       sum_block['.'] = val++;
  225.       sum_block['_'] = val++;
  226.       for (i = 'a'; i <= 'z'; i++)
  227.         sum_block[i] = val++;
  228.     }
  229. }
  230.  
  231. /* The maximum number of bytes on a line is FF.  */
  232. #define MAXCHUNK 0xff
  233. /* The number of bytes we fit onto a line on output.  */
  234. #define CHUNK 21
  235.  
  236. /* We cannot output our tekhexords as we see them, we have to glue them
  237.    together, this is done in this structure : */
  238.  
  239. struct tekhex_data_list_struct
  240. {
  241.   unsigned char *data;
  242.   bfd_vma where;
  243.   bfd_size_type size;
  244.   struct tekhex_data_list_struct *next;
  245.  
  246. };
  247. typedef struct tekhex_data_list_struct tekhex_data_list_type;
  248.  
  249. #define CHUNK_MASK 0x1fff
  250.  
  251. struct data_struct
  252. {
  253.   char chunk_data[CHUNK_MASK + 1];
  254.   char chunk_init[CHUNK_MASK + 1];
  255.   bfd_vma vma;
  256.   struct data_struct *next;
  257. };
  258.  
  259. typedef struct tekhex_data_struct
  260. {
  261.   tekhex_data_list_type *head;
  262.   unsigned int type;
  263.   struct tekhex_symbol_struct *symbols;
  264.   struct data_struct *data;
  265. } tdata_type;
  266.  
  267. #define enda(x) (x->vma + x->size)
  268.  
  269. static bfd_boolean
  270. getvalue (char **srcp, bfd_vma *valuep)
  271. {
  272.   char *src = *srcp;
  273.   bfd_vma value = 0;
  274.   unsigned int len;
  275.  
  276.   if (!ISHEX (*src))
  277.     return FALSE;
  278.  
  279.   len = hex_value (*src++);
  280.   if (len == 0)
  281.     len = 16;
  282.   while (len--)
  283.     {
  284.       if (!ISHEX (*src))
  285.         return FALSE;
  286.       value = value << 4 | hex_value (*src++);
  287.     }
  288.  
  289.   *srcp = src;
  290.   *valuep = value;
  291.   return TRUE;
  292. }
  293.  
  294. static bfd_boolean
  295. getsym (char *dstp, char **srcp, unsigned int *lenp)
  296. {
  297.   char *src = *srcp;
  298.   unsigned int i;
  299.   unsigned int len;
  300.  
  301.   if (!ISHEX (*src))
  302.     return FALSE;
  303.  
  304.   len = hex_value (*src++);
  305.   if (len == 0)
  306.     len = 16;
  307.   for (i = 0; i < len; i++)
  308.     dstp[i] = src[i];
  309.   dstp[i] = 0;
  310.   *srcp = src + i;
  311.   *lenp = len;
  312.   return TRUE;
  313. }
  314.  
  315. static struct data_struct *
  316. find_chunk (bfd *abfd, bfd_vma vma)
  317. {
  318.   struct data_struct *d = abfd->tdata.tekhex_data->data;
  319.  
  320.   vma &= ~CHUNK_MASK;
  321.   while (d && (d->vma) != vma)
  322.     d = d->next;
  323.  
  324.   if (!d)
  325.     {
  326.       /* No chunk for this address, so make one up.  */
  327.       d = (struct data_struct *)
  328.           bfd_zalloc (abfd, (bfd_size_type) sizeof (struct data_struct));
  329.  
  330.       if (!d)
  331.         return NULL;
  332.  
  333.       d->next = abfd->tdata.tekhex_data->data;
  334.       d->vma = vma;
  335.       abfd->tdata.tekhex_data->data = d;
  336.     }
  337.   return d;
  338. }
  339.  
  340. static void
  341. insert_byte (bfd *abfd, int value, bfd_vma addr)
  342. {
  343.   /* Find the chunk that this byte needs and put it in.  */
  344.   struct data_struct *d = find_chunk (abfd, addr);
  345.  
  346.   d->chunk_data[addr & CHUNK_MASK] = value;
  347.   d->chunk_init[addr & CHUNK_MASK] = 1;
  348. }
  349.  
  350. /* The first pass is to find the names of all the sections, and see
  351.   how big the data is.  */
  352.  
  353. static bfd_boolean
  354. first_phase (bfd *abfd, int type, char *src)
  355. {
  356.   asection *section = bfd_abs_section_ptr;
  357.   unsigned int len;
  358.   bfd_vma val;
  359.   char sym[17];                 /* A symbol can only be 16chars long.  */
  360.  
  361.   switch (type)
  362.     {
  363.     case '6':
  364.       /* Data record - read it and store it.  */
  365.       {
  366.         bfd_vma addr;
  367.  
  368.         if (!getvalue (&src, &addr))
  369.           return FALSE;
  370.  
  371.         while (*src)
  372.           {
  373.             insert_byte (abfd, HEX (src), addr);
  374.             src += 2;
  375.             addr++;
  376.           }
  377.       }
  378.  
  379.       return TRUE;
  380.     case '3':
  381.       /* Symbol record, read the segment.  */
  382.       if (!getsym (sym, &src, &len))
  383.         return FALSE;
  384.       section = bfd_get_section_by_name (abfd, sym);
  385.       if (section == NULL)
  386.         {
  387.           char *n = (char *) bfd_alloc (abfd, (bfd_size_type) len + 1);
  388.  
  389.           if (!n)
  390.             return FALSE;
  391.           memcpy (n, sym, len + 1);
  392.           section = bfd_make_section (abfd, n);
  393.           if (section == NULL)
  394.             return FALSE;
  395.         }
  396.       while (*src)
  397.         {
  398.           switch (*src)
  399.             {
  400.             case '1':           /* Section range.  */
  401.               src++;
  402.               if (!getvalue (&src, &section->vma))
  403.                 return FALSE;
  404.               if (!getvalue (&src, &val))
  405.                 return FALSE;
  406.               section->size = val - section->vma;
  407.               section->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC;
  408.               break;
  409.             case '0':
  410.             case '2':
  411.             case '3':
  412.             case '4':
  413.             case '6':
  414.             case '7':
  415.             case '8':
  416.               /* Symbols, add to section.  */
  417.               {
  418.                 bfd_size_type amt = sizeof (tekhex_symbol_type);
  419.                 tekhex_symbol_type *new_symbol = (tekhex_symbol_type *)
  420.                     bfd_alloc (abfd, amt);
  421.                 char stype = (*src);
  422.  
  423.                 if (!new_symbol)
  424.                   return FALSE;
  425.                 new_symbol->symbol.the_bfd = abfd;
  426.                 src++;
  427.                 abfd->symcount++;
  428.                 abfd->flags |= HAS_SYMS;
  429.                 new_symbol->prev = abfd->tdata.tekhex_data->symbols;
  430.                 abfd->tdata.tekhex_data->symbols = new_symbol;
  431.                 if (!getsym (sym, &src, &len))
  432.                   return FALSE;
  433.                 new_symbol->symbol.name = (const char *)
  434.                     bfd_alloc (abfd, (bfd_size_type) len + 1);
  435.                 if (!new_symbol->symbol.name)
  436.                   return FALSE;
  437.                 memcpy ((char *) (new_symbol->symbol.name), sym, len + 1);
  438.                 new_symbol->symbol.section = section;
  439.                 if (stype <= '4')
  440.                   new_symbol->symbol.flags = (BSF_GLOBAL | BSF_EXPORT);
  441.                 else
  442.                   new_symbol->symbol.flags = BSF_LOCAL;
  443.                 if (!getvalue (&src, &val))
  444.                   return FALSE;
  445.                 new_symbol->symbol.value = val - section->vma;
  446.                 break;
  447.               }
  448.             default:
  449.               return FALSE;
  450.             }
  451.         }
  452.     }
  453.  
  454.   return TRUE;
  455. }
  456.  
  457. /* Pass over a tekhex, calling one of the above functions on each
  458.    record.  */
  459.  
  460. static bfd_boolean
  461. pass_over (bfd *abfd, bfd_boolean (*func) (bfd *, int, char *))
  462. {
  463.   unsigned int chars_on_line;
  464.   bfd_boolean is_eof = FALSE;
  465.  
  466.   /* To the front of the file.  */
  467.   if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
  468.     return FALSE;
  469.   while (! is_eof)
  470.     {
  471.       char src[MAXCHUNK];
  472.       char type;
  473.  
  474.       /* Find first '%'.  */
  475.       is_eof = (bfd_boolean) (bfd_bread (src, (bfd_size_type) 1, abfd) != 1);
  476.       while (*src != '%' && !is_eof)
  477.         is_eof = (bfd_boolean) (bfd_bread (src, (bfd_size_type) 1, abfd) != 1);
  478.  
  479.       if (is_eof)
  480.         break;
  481.  
  482.       /* Fetch the type and the length and the checksum.  */
  483.       if (bfd_bread (src, (bfd_size_type) 5, abfd) != 5)
  484.         return FALSE;
  485.  
  486.       type = src[2];
  487.  
  488.       if (!ISHEX (src[0]) || !ISHEX (src[1]))
  489.         break;
  490.  
  491.       /* Already read five chars.  */
  492.       chars_on_line = HEX (src) - 5;
  493.  
  494.       if (chars_on_line >= MAXCHUNK)
  495.         return FALSE;
  496.  
  497.       if (bfd_bread (src, (bfd_size_type) chars_on_line, abfd) != chars_on_line)
  498.         return FALSE;
  499.  
  500.       /* Put a null at the end.  */
  501.       src[chars_on_line] = 0;
  502.  
  503.       if (!func (abfd, type, src))
  504.         return FALSE;
  505.     }
  506.  
  507.   return TRUE;
  508. }
  509.  
  510. static long
  511. tekhex_canonicalize_symtab (bfd *abfd, asymbol **table)
  512. {
  513.   tekhex_symbol_type *p = abfd->tdata.tekhex_data->symbols;
  514.   unsigned int c = bfd_get_symcount (abfd);
  515.  
  516.   table[c] = 0;
  517.   while (p)
  518.     {
  519.       table[--c] = &(p->symbol);
  520.       p = p->prev;
  521.     }
  522.  
  523.   return bfd_get_symcount (abfd);
  524. }
  525.  
  526. static long
  527. tekhex_get_symtab_upper_bound (bfd *abfd)
  528. {
  529.   return (abfd->symcount + 1) * (sizeof (struct tekhex_asymbol_struct *));
  530.  
  531. }
  532.  
  533. static bfd_boolean
  534. tekhex_mkobject (bfd *abfd)
  535. {
  536.   tdata_type *tdata;
  537.  
  538.   tdata = (tdata_type *) bfd_alloc (abfd, (bfd_size_type) sizeof (tdata_type));
  539.   if (!tdata)
  540.     return FALSE;
  541.   abfd->tdata.tekhex_data = tdata;
  542.   tdata->type = 1;
  543.   tdata->head =  NULL;
  544.   tdata->symbols = NULL;
  545.   tdata->data = NULL;
  546.   return TRUE;
  547. }
  548.  
  549. /* Return TRUE if the file looks like it's in TekHex format. Just look
  550.    for a percent sign and some hex digits.  */
  551.  
  552. static const bfd_target *
  553. tekhex_object_p (bfd *abfd)
  554. {
  555.   char b[4];
  556.  
  557.   tekhex_init ();
  558.  
  559.   if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
  560.       || bfd_bread (b, (bfd_size_type) 4, abfd) != 4)
  561.     return NULL;
  562.  
  563.   if (b[0] != '%' || !ISHEX (b[1]) || !ISHEX (b[2]) || !ISHEX (b[3]))
  564.     return NULL;
  565.  
  566.   tekhex_mkobject (abfd);
  567.  
  568.   if (!pass_over (abfd, first_phase))
  569.     return NULL;
  570.  
  571.   return abfd->xvec;
  572. }
  573.  
  574. static void
  575. move_section_contents (bfd *abfd,
  576.                        asection *section,
  577.                        const void * locationp,
  578.                        file_ptr offset,
  579.                        bfd_size_type count,
  580.                        bfd_boolean get)
  581. {
  582.   bfd_vma addr;
  583.   char *location = (char *) locationp;
  584.   bfd_vma prev_number = 1;      /* Nothing can have this as a high bit.  */
  585.   struct data_struct *d = NULL;
  586.  
  587.   BFD_ASSERT (offset == 0);
  588.   for (addr = section->vma; count != 0; count--, addr++)
  589.     {
  590.       /* Get high bits of address.  */
  591.       bfd_vma chunk_number = addr & ~(bfd_vma) CHUNK_MASK;
  592.       bfd_vma low_bits = addr & CHUNK_MASK;
  593.  
  594.       if (chunk_number != prev_number)
  595.         /* Different chunk, so move pointer. */
  596.         d = find_chunk (abfd, chunk_number);
  597.  
  598.       if (get)
  599.         {
  600.           if (d->chunk_init[low_bits])
  601.             *location = d->chunk_data[low_bits];
  602.           else
  603.             *location = 0;
  604.         }
  605.       else
  606.         {
  607.           d->chunk_data[low_bits] = *location;
  608.           d->chunk_init[low_bits] = (*location != 0);
  609.         }
  610.  
  611.       location++;
  612.     }
  613. }
  614.  
  615. static bfd_boolean
  616. tekhex_get_section_contents (bfd *abfd,
  617.                              asection *section,
  618.                              void * locationp,
  619.                              file_ptr offset,
  620.                              bfd_size_type count)
  621. {
  622.   if (section->flags & (SEC_LOAD | SEC_ALLOC))
  623.     {
  624.       move_section_contents (abfd, section, locationp, offset, count, TRUE);
  625.       return TRUE;
  626.     }
  627.  
  628.   return FALSE;
  629. }
  630.  
  631. static bfd_boolean
  632. tekhex_set_arch_mach (bfd *abfd,
  633.                       enum bfd_architecture arch,
  634.                       unsigned long machine)
  635. {
  636.   return bfd_default_set_arch_mach (abfd, arch, machine);
  637. }
  638.  
  639. /* We have to save up all the Tekhexords for a splurge before output.  */
  640.  
  641. static bfd_boolean
  642. tekhex_set_section_contents (bfd *abfd,
  643.                              sec_ptr section,
  644.                              const void * locationp,
  645.                              file_ptr offset,
  646.                              bfd_size_type bytes_to_do)
  647. {
  648.   if (! abfd->output_has_begun)
  649.     {
  650.       /* The first time around, allocate enough sections to hold all the chunks.  */
  651.       asection *s = abfd->sections;
  652.       bfd_vma vma;
  653.  
  654.       for (s = abfd->sections; s; s = s->next)
  655.         {
  656.           if (s->flags & SEC_LOAD)
  657.             {
  658.               for (vma = s->vma & ~(bfd_vma) CHUNK_MASK;
  659.                    vma < s->vma + s->size;
  660.                    vma += CHUNK_MASK)
  661.                 find_chunk (abfd, vma);
  662.             }
  663.         }
  664.     }
  665.  
  666.   if (section->flags & (SEC_LOAD | SEC_ALLOC))
  667.     {
  668.       move_section_contents (abfd, section, locationp, offset, bytes_to_do,
  669.                              FALSE);
  670.       return TRUE;
  671.     }
  672.  
  673.   return FALSE;
  674. }
  675.  
  676. static void
  677. writevalue (char **dst, bfd_vma value)
  678. {
  679.   char *p = *dst;
  680.   int len;
  681.   int shift;
  682.  
  683.   for (len = 8, shift = 28; shift; shift -= 4, len--)
  684.     {
  685.       if ((value >> shift) & 0xf)
  686.         {
  687.           *p++ = len + '0';
  688.           while (len)
  689.             {
  690.               *p++ = digs[(value >> shift) & 0xf];
  691.               shift -= 4;
  692.               len--;
  693.             }
  694.           *dst = p;
  695.           return;
  696.  
  697.         }
  698.     }
  699.   *p++ = '1';
  700.   *p++ = '0';
  701.   *dst = p;
  702. }
  703.  
  704. static void
  705. writesym (char **dst, const char *sym)
  706. {
  707.   char *p = *dst;
  708.   int len = (sym ? strlen (sym) : 0);
  709.  
  710.   if (len >= 16)
  711.     {
  712.       *p++ = '0';
  713.       len = 16;
  714.     }
  715.   else
  716.     {
  717.       if (len == 0)
  718.         {
  719.           *p++ = '1';
  720.           sym = "$";
  721.           len = 1;
  722.         }
  723.       else
  724.         *p++ = digs[len];
  725.     }
  726.  
  727.   while (len--)
  728.     *p++ = *sym++;
  729.  
  730.   *dst = p;
  731. }
  732.  
  733. static void
  734. out (bfd *abfd, int type, char *start, char *end)
  735. {
  736.   int sum = 0;
  737.   char *s;
  738.   char front[6];
  739.   bfd_size_type wrlen;
  740.  
  741.   front[0] = '%';
  742.   TOHEX (front + 1, end - start + 5);
  743.   front[3] = type;
  744.  
  745.   for (s = start; s < end; s++)
  746.     sum += sum_block[(unsigned char) *s];
  747.  
  748.   sum += sum_block[(unsigned char) front[1]];   /* Length.  */
  749.   sum += sum_block[(unsigned char) front[2]];
  750.   sum += sum_block[(unsigned char) front[3]];   /* Type.  */
  751.   TOHEX (front + 4, sum);
  752.   if (bfd_bwrite (front, (bfd_size_type) 6, abfd) != 6)
  753.     abort ();
  754.   end[0] = '\n';
  755.   wrlen = end - start + 1;
  756.   if (bfd_bwrite (start, wrlen, abfd) != wrlen)
  757.     abort ();
  758. }
  759.  
  760. static bfd_boolean
  761. tekhex_write_object_contents (bfd *abfd)
  762. {
  763.   char buffer[100];
  764.   asymbol **p;
  765.   asection *s;
  766.   struct data_struct *d;
  767.  
  768.   tekhex_init ();
  769.  
  770.   /* And the raw data.  */
  771.   for (d = abfd->tdata.tekhex_data->data;
  772.        d != NULL;
  773.        d = d->next)
  774.     {
  775.       int low;
  776.  
  777.       const int span = 32;
  778.       int addr;
  779.  
  780.       /* Write it in blocks of 32 bytes.  */
  781.       for (addr = 0; addr < CHUNK_MASK + 1; addr += span)
  782.         {
  783.           int need = 0;
  784.  
  785.           /* Check to see if necessary.  */
  786.           for (low = 0; !need && low < span; low++)
  787.             if (d->chunk_init[addr + low])
  788.               need = 1;
  789.  
  790.           if (need)
  791.             {
  792.               char *dst = buffer;
  793.  
  794.               writevalue (&dst, addr + d->vma);
  795.               for (low = 0; low < span; low++)
  796.                 {
  797.                   TOHEX (dst, d->chunk_data[addr + low]);
  798.                   dst += 2;
  799.                 }
  800.               out (abfd, '6', buffer, dst);
  801.             }
  802.         }
  803.     }
  804.  
  805.   /* Write all the section headers for the sections.  */
  806.   for (s = abfd->sections; s != NULL; s = s->next)
  807.     {
  808.       char *dst = buffer;
  809.  
  810.       writesym (&dst, s->name);
  811.       *dst++ = '1';
  812.       writevalue (&dst, s->vma);
  813.       writevalue (&dst, s->vma + s->size);
  814.       out (abfd, '3', buffer, dst);
  815.     }
  816.  
  817.   /* And the symbols.  */
  818.   if (abfd->outsymbols)
  819.     {
  820.       for (p = abfd->outsymbols; *p; p++)
  821.         {
  822.           int section_code = bfd_decode_symclass (*p);
  823.  
  824.           if (section_code != '?')
  825.             {
  826.               /* Do not include debug symbols.  */
  827.               asymbol *sym = *p;
  828.               char *dst = buffer;
  829.  
  830.               writesym (&dst, sym->section->name);
  831.  
  832.               switch (section_code)
  833.                 {
  834.                 case 'A':
  835.                   *dst++ = '2';
  836.                   break;
  837.                 case 'a':
  838.                   *dst++ = '6';
  839.                   break;
  840.                 case 'D':
  841.                 case 'B':
  842.                 case 'O':
  843.                   *dst++ = '4';
  844.                   break;
  845.                 case 'd':
  846.                 case 'b':
  847.                 case 'o':
  848.                   *dst++ = '8';
  849.                   break;
  850.                 case 'T':
  851.                   *dst++ = '3';
  852.                   break;
  853.                 case 't':
  854.                   *dst++ = '7';
  855.                   break;
  856.                 case 'C':
  857.                 case 'U':
  858.                   bfd_set_error (bfd_error_wrong_format);
  859.                   return FALSE;
  860.                 }
  861.  
  862.               writesym (&dst, sym->name);
  863.               writevalue (&dst, sym->value + sym->section->vma);
  864.               out (abfd, '3', buffer, dst);
  865.             }
  866.         }
  867.     }
  868.  
  869.   /* And the terminator.  */
  870.   if (bfd_bwrite ("%0781010\n", (bfd_size_type) 9, abfd) != 9)
  871.     abort ();
  872.   return TRUE;
  873. }
  874.  
  875. static int
  876. tekhex_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
  877.                        struct bfd_link_info *info ATTRIBUTE_UNUSED)
  878. {
  879.   return 0;
  880. }
  881.  
  882. static asymbol *
  883. tekhex_make_empty_symbol (bfd *abfd)
  884. {
  885.   bfd_size_type amt = sizeof (struct tekhex_symbol_struct);
  886.   tekhex_symbol_type *new_symbol = (tekhex_symbol_type *) bfd_zalloc (abfd,
  887.                                                                       amt);
  888.  
  889.   if (!new_symbol)
  890.     return NULL;
  891.   new_symbol->symbol.the_bfd = abfd;
  892.   new_symbol->prev =  NULL;
  893.   return &(new_symbol->symbol);
  894. }
  895.  
  896. static void
  897. tekhex_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
  898.                         asymbol *symbol,
  899.                         symbol_info *ret)
  900. {
  901.   bfd_symbol_info (symbol, ret);
  902. }
  903.  
  904. static void
  905. tekhex_print_symbol (bfd *abfd,
  906.                      void * filep,
  907.                      asymbol *symbol,
  908.                      bfd_print_symbol_type how)
  909. {
  910.   FILE *file = (FILE *) filep;
  911.  
  912.   switch (how)
  913.     {
  914.     case bfd_print_symbol_name:
  915.       fprintf (file, "%s", symbol->name);
  916.       break;
  917.     case bfd_print_symbol_more:
  918.       break;
  919.  
  920.     case bfd_print_symbol_all:
  921.       {
  922.         const char *section_name = symbol->section->name;
  923.  
  924.         bfd_print_symbol_vandf (abfd, (void *) file, symbol);
  925.  
  926.         fprintf (file, " %-5s %s",
  927.                  section_name, symbol->name);
  928.       }
  929.     }
  930. }
  931.  
  932. #define tekhex_close_and_cleanup                    _bfd_generic_close_and_cleanup
  933. #define tekhex_bfd_free_cached_info                 _bfd_generic_bfd_free_cached_info
  934. #define tekhex_new_section_hook                     _bfd_generic_new_section_hook
  935. #define tekhex_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
  936. #define tekhex_bfd_is_local_label_name               bfd_generic_is_local_label_name
  937. #define tekhex_get_lineno                           _bfd_nosymbols_get_lineno
  938. #define tekhex_find_nearest_line                    _bfd_nosymbols_find_nearest_line
  939. #define tekhex_find_inliner_info                    _bfd_nosymbols_find_inliner_info
  940. #define tekhex_bfd_make_debug_symbol                _bfd_nosymbols_bfd_make_debug_symbol
  941. #define tekhex_read_minisymbols                     _bfd_generic_read_minisymbols
  942. #define tekhex_minisymbol_to_symbol                 _bfd_generic_minisymbol_to_symbol
  943. #define tekhex_bfd_get_relocated_section_contents   bfd_generic_get_relocated_section_contents
  944. #define tekhex_bfd_relax_section                    bfd_generic_relax_section
  945. #define tekhex_bfd_gc_sections                      bfd_generic_gc_sections
  946. #define tekhex_bfd_lookup_section_flags             bfd_generic_lookup_section_flags
  947. #define tekhex_bfd_merge_sections                   bfd_generic_merge_sections
  948. #define tekhex_bfd_is_group_section                 bfd_generic_is_group_section
  949. #define tekhex_bfd_discard_group                    bfd_generic_discard_group
  950. #define tekhex_section_already_linked               _bfd_generic_section_already_linked
  951. #define tekhex_bfd_define_common_symbol             bfd_generic_define_common_symbol
  952. #define tekhex_bfd_link_hash_table_create           _bfd_generic_link_hash_table_create
  953. #define tekhex_bfd_link_hash_table_free             _bfd_generic_link_hash_table_free
  954. #define tekhex_bfd_link_add_symbols                 _bfd_generic_link_add_symbols
  955. #define tekhex_bfd_link_just_syms                   _bfd_generic_link_just_syms
  956. #define tekhex_bfd_copy_link_hash_symbol_type \
  957.   _bfd_generic_copy_link_hash_symbol_type
  958. #define tekhex_bfd_final_link                       _bfd_generic_final_link
  959. #define tekhex_bfd_link_split_section               _bfd_generic_link_split_section
  960. #define tekhex_get_section_contents_in_window       _bfd_generic_get_section_contents_in_window
  961.  
  962. const bfd_target tekhex_vec =
  963. {
  964.   "tekhex",                     /* Name.  */
  965.   bfd_target_tekhex_flavour,
  966.   BFD_ENDIAN_UNKNOWN,           /* Target byte order.  */
  967.   BFD_ENDIAN_UNKNOWN,           /* Target headers byte order.  */
  968.   (EXEC_P |                     /* Object flags.  */
  969.    HAS_SYMS | HAS_LINENO | HAS_DEBUG |
  970.    HAS_RELOC | HAS_LOCALS | WP_TEXT | D_PAGED),
  971.   (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
  972.    | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags.  */
  973.   0,                            /* Leading underscore.  */
  974.   ' ',                          /* AR_pad_char.  */
  975.   16,                           /* AR_max_namelen.  */
  976.   0,                            /* match priority.  */
  977.   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
  978.   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
  979.   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Data.  */
  980.   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
  981.   bfd_getb32, bfd_getb_signed_32, bfd_putb32,
  982.   bfd_getb16, bfd_getb_signed_16, bfd_putb16,   /* Headers.  */
  983.  
  984.   {
  985.     _bfd_dummy_target,
  986.     tekhex_object_p,            /* bfd_check_format.  */
  987.     _bfd_dummy_target,
  988.     _bfd_dummy_target,
  989.   },
  990.   {
  991.     bfd_false,
  992.     tekhex_mkobject,
  993.     _bfd_generic_mkarchive,
  994.     bfd_false,
  995.   },
  996.   {                             /* bfd_write_contents.  */
  997.     bfd_false,
  998.     tekhex_write_object_contents,
  999.     _bfd_write_archive_contents,
  1000.     bfd_false,
  1001.   },
  1002.  
  1003.   BFD_JUMP_TABLE_GENERIC (tekhex),
  1004.   BFD_JUMP_TABLE_COPY (_bfd_generic),
  1005.   BFD_JUMP_TABLE_CORE (_bfd_nocore),
  1006.   BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
  1007.   BFD_JUMP_TABLE_SYMBOLS (tekhex),
  1008.   BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
  1009.   BFD_JUMP_TABLE_WRITE (tekhex),
  1010.   BFD_JUMP_TABLE_LINK (tekhex),
  1011.   BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
  1012.  
  1013.   NULL,
  1014.  
  1015.   NULL
  1016. };
  1017.