1051 lines
27 KiB
C
1051 lines
27 KiB
C
/* BFD backend for Extended Tektronix Hex Format objects.
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Copyright (C) 1992-2022 Free Software Foundation, Inc.
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Written by Steve Chamberlain of Cygnus Support <sac@cygnus.com>.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/* SUBSECTION
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Tektronix Hex Format handling
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DESCRIPTION
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Tek Hex records can hold symbols and data, but not
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relocations. Their main application is communication with
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devices like PROM programmers and ICE equipment.
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It seems that the sections are described as being really big,
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the example I have says that the text section is 0..ffffffff.
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BFD would barf with this, many apps would try to alloc 4GB to
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read in the file.
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Tex Hex may contain many sections, but the data which comes in
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has no tag saying which section it belongs to, so we create
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one section for each block of data, called "blknnnn" which we
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stick all the data into.
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TekHex may come out of order and there is no header, so an
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initial scan is required to discover the minimum and maximum
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addresses used to create the vma and size of the sections we
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create.
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We read in the data into pages of CHUNK_MASK+1 size and read
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them out from that whenever we need to.
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Any number of sections may be created for output, we save them
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up and output them when it's time to close the bfd.
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A TekHex record looks like:
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EXAMPLE
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%<block length><type><checksum><stuff><cr>
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DESCRIPTION
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Where
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o length
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is the number of bytes in the record not including the % sign.
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o type
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is one of:
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3) symbol record
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6) data record
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8) termination record
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The data can come out of order, and may be discontigous. This is a
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serial protocol, so big files are unlikely, so we keep a list of 8k chunks. */
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#include "sysdep.h"
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#include "bfd.h"
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#include "libbfd.h"
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#include "libiberty.h"
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typedef struct
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{
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bfd_vma low;
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bfd_vma high;
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} addr_range_type;
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typedef struct tekhex_symbol_struct
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{
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asymbol symbol;
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struct tekhex_symbol_struct *prev;
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} tekhex_symbol_type;
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static const char digs[] = "0123456789ABCDEF";
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static char sum_block[256];
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#define NOT_HEX 20
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#define NIBBLE(x) hex_value(x)
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#define HEX(buffer) ((NIBBLE ((buffer)[0]) << 4) + NIBBLE ((buffer)[1]))
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#define ISHEX(x) hex_p(x)
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#define TOHEX(d, x) \
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(d)[1] = digs[(x) & 0xf]; \
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(d)[0] = digs[((x)>>4)&0xf];
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/* Here's an example
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%3A6C6480004E56FFFC4E717063B0AEFFFC6D0652AEFFFC60F24E5E4E75
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%1B3709T_SEGMENT1108FFFFFFFF
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%2B3AB9T_SEGMENT7Dgcc_compiled$1087hello$c10
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%373829T_SEGMENT80int$t1$r1$$214741080char$t2$r2$0$12710
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%373769T_SEGMENT80long$int$t3$r1$$1080unsigned$int$t4$10
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%373CA9T_SEGMENT80long$unsigned$in1080short$int$t6$r1$10
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%373049T_SEGMENT80long$long$int$t71080short$unsigned$i10
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%373A29T_SEGMENT80long$long$unsign1080signed$char$t10$10
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%373D69T_SEGMENT80unsigned$char$t11080float$t12$r1$4$010
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%373D19T_SEGMENT80double$t13$r1$8$1080long$double$t14$10
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%2734D9T_SEGMENT8Bvoid$t15$151035_main10
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%2F3CA9T_SEGMENT81$1081$1681$1E81$21487main$F110
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%2832F9T_SEGMENT83i$18FFFFFFFC81$1481$214
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%07 8 10 10
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explanation:
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%3A6C6480004E56FFFC4E717063B0AEFFFC6D0652AEFFFC60F24E5E4E75
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^ ^^ ^ ^-data
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| || +------ 4 char integer 0x8000
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| |+-------- checksum
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| +--------- type 6 (data record)
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+----------- length 3a chars
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<---------------------- 3a (58 chars) ------------------->
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%1B3709T_SEGMENT1108FFFFFFFF
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^ ^^ ^- 8 character integer 0xffffffff
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| |+- 1 character integer 0
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| +-- type 1 symbol (section definition)
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+------------ 9 char symbol T_SEGMENT
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%2B3AB9T_SEGMENT7Dgcc_compiled$1087hello$c10
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%373829T_SEGMENT80int$t1$r1$$214741080char$t2$r2$0$12710
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%373769T_SEGMENT80long$int$t3$r1$$1080unsigned$int$t4$10
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%373CA9T_SEGMENT80long$unsigned$in1080short$int$t6$r1$10
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%373049T_SEGMENT80long$long$int$t71080short$unsigned$i10
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%373A29T_SEGMENT80long$long$unsign1080signed$char$t10$10
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%373D69T_SEGMENT80unsigned$char$t11080float$t12$r1$4$010
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%373D19T_SEGMENT80double$t13$r1$8$1080long$double$t14$10
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%2734D9T_SEGMENT8Bvoid$t15$151035_main10
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%2F3CA9T_SEGMENT81$1081$1681$1E81$21487main$F110
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%2832F9T_SEGMENT83i$18FFFFFFFC81$1481$214
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%0781010
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Turns into
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sac@thepub$ ./objdump -dx -m m68k f
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f: file format tekhex
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-----x--- 9/55728 -134219416 Sep 29 15:13 1995 f
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architecture: UNKNOWN!, flags 0x00000010:
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HAS_SYMS
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start address 0x00000000
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SECTION 0 [D00000000] : size 00020000 vma 00000000 align 2**0
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ALLOC, LOAD
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SECTION 1 [D00008000] : size 00002001 vma 00008000 align 2**0
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SECTION 2 [T_SEGMENT] : size ffffffff vma 00000000 align 2**0
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SYMBOL TABLE:
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00000000 g T_SEGMENT gcc_compiled$
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00000000 g T_SEGMENT hello$c
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00000000 g T_SEGMENT int$t1$r1$$21474
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00000000 g T_SEGMENT char$t2$r2$0$127
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00000000 g T_SEGMENT long$int$t3$r1$$
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00000000 g T_SEGMENT unsigned$int$t4$
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00000000 g T_SEGMENT long$unsigned$in
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00000000 g T_SEGMENT short$int$t6$r1$
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00000000 g T_SEGMENT long$long$int$t7
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00000000 g T_SEGMENT short$unsigned$i
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00000000 g T_SEGMENT long$long$unsign
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00000000 g T_SEGMENT signed$char$t10$
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00000000 g T_SEGMENT unsigned$char$t1
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00000000 g T_SEGMENT float$t12$r1$4$0
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00000000 g T_SEGMENT double$t13$r1$8$
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00000000 g T_SEGMENT long$double$t14$
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00000000 g T_SEGMENT void$t15$15
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00000000 g T_SEGMENT _main
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00000000 g T_SEGMENT $
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00000000 g T_SEGMENT $
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00000000 g T_SEGMENT $
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00000010 g T_SEGMENT $
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00000000 g T_SEGMENT main$F1
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fcffffff g T_SEGMENT i$1
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00000000 g T_SEGMENT $
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00000010 g T_SEGMENT $
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RELOCATION RECORDS FOR [D00000000]: (none)
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RELOCATION RECORDS FOR [D00008000]: (none)
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RELOCATION RECORDS FOR [T_SEGMENT]: (none)
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Disassembly of section D00000000:
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...
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00008000 ($+)7ff0 linkw fp,#-4
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00008004 ($+)7ff4 nop
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00008006 ($+)7ff6 movel #99,d0
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00008008 ($+)7ff8 cmpl fp@(-4),d0
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0000800c ($+)7ffc blts 00008014 ($+)8004
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0000800e ($+)7ffe addql #1,fp@(-4)
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00008012 ($+)8002 bras 00008006 ($+)7ff6
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00008014 ($+)8004 unlk fp
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00008016 ($+)8006 rts
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... */
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static void
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tekhex_init (void)
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{
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unsigned int i;
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static bool inited = false;
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int val;
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if (! inited)
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{
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inited = true;
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hex_init ();
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val = 0;
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for (i = 0; i < 10; i++)
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sum_block[i + '0'] = val++;
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for (i = 'A'; i <= 'Z'; i++)
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sum_block[i] = val++;
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sum_block['$'] = val++;
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sum_block['%'] = val++;
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sum_block['.'] = val++;
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sum_block['_'] = val++;
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for (i = 'a'; i <= 'z'; i++)
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sum_block[i] = val++;
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}
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}
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/* The maximum number of bytes on a line is FF. */
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#define MAXCHUNK 0xff
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/* The number of bytes we fit onto a line on output. */
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#define CHUNK 21
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/* We cannot output our tekhexords as we see them, we have to glue them
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together, this is done in this structure : */
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struct tekhex_data_list_struct
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{
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unsigned char *data;
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bfd_vma where;
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bfd_size_type size;
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struct tekhex_data_list_struct *next;
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};
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typedef struct tekhex_data_list_struct tekhex_data_list_type;
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#define CHUNK_MASK 0x1fff
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#define CHUNK_SPAN 32
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struct data_struct
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{
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unsigned char chunk_data[CHUNK_MASK + 1];
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unsigned char chunk_init[(CHUNK_MASK + 1 + CHUNK_SPAN - 1) / CHUNK_SPAN];
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bfd_vma vma;
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struct data_struct *next;
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};
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typedef struct tekhex_data_struct
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{
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tekhex_data_list_type *head;
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unsigned int type;
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struct tekhex_symbol_struct *symbols;
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struct data_struct *data;
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} tdata_type;
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#define enda(x) (x->vma + x->size)
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static bool
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getvalue (char **srcp, bfd_vma *valuep, char * endp)
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{
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char *src = *srcp;
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bfd_vma value = 0;
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unsigned int len;
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if (src >= endp)
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return false;
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if (!ISHEX (*src))
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return false;
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len = hex_value (*src++);
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if (len == 0)
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len = 16;
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while (len-- && src < endp)
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{
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if (!ISHEX (*src))
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return false;
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value = value << 4 | hex_value (*src++);
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}
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*srcp = src;
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*valuep = value;
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return len == -1U;
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}
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static bool
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getsym (char *dstp, char **srcp, unsigned int *lenp, char * endp)
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{
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char *src = *srcp;
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unsigned int i;
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unsigned int len;
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if (!ISHEX (*src))
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return false;
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len = hex_value (*src++);
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if (len == 0)
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len = 16;
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for (i = 0; i < len && (src + i) < endp; i++)
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dstp[i] = src[i];
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dstp[i] = 0;
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*srcp = src + i;
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*lenp = len;
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return i == len;
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}
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static struct data_struct *
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find_chunk (bfd *abfd, bfd_vma vma, bool create)
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{
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struct data_struct *d = abfd->tdata.tekhex_data->data;
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vma &= ~CHUNK_MASK;
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while (d && (d->vma) != vma)
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d = d->next;
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if (!d && create)
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{
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/* No chunk for this address, so make one up. */
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d = (struct data_struct *)
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bfd_zalloc (abfd, (bfd_size_type) sizeof (struct data_struct));
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if (!d)
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return NULL;
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d->next = abfd->tdata.tekhex_data->data;
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d->vma = vma;
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abfd->tdata.tekhex_data->data = d;
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}
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return d;
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}
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static void
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insert_byte (bfd *abfd, int value, bfd_vma addr)
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{
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if (value != 0)
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{
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/* Find the chunk that this byte needs and put it in. */
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struct data_struct *d = find_chunk (abfd, addr, true);
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d->chunk_data[addr & CHUNK_MASK] = value;
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d->chunk_init[(addr & CHUNK_MASK) / CHUNK_SPAN] = 1;
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}
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}
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/* The first pass is to find the names of all the sections, and see
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how big the data is. */
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static bool
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first_phase (bfd *abfd, int type, char *src, char * src_end)
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{
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asection *section, *alt_section;
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unsigned int len;
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bfd_vma val;
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char sym[17]; /* A symbol can only be 16chars long. */
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switch (type)
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{
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case '6':
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/* Data record - read it and store it. */
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{
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bfd_vma addr;
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if (!getvalue (&src, &addr, src_end))
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return false;
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while (*src && src < src_end - 1)
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{
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insert_byte (abfd, HEX (src), addr);
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src += 2;
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addr++;
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}
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return true;
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}
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case '3':
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/* Symbol record, read the segment. */
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if (!getsym (sym, &src, &len, src_end))
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return false;
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section = bfd_get_section_by_name (abfd, sym);
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if (section == NULL)
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{
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char *n = (char *) bfd_alloc (abfd, (bfd_size_type) len + 1);
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if (!n)
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return false;
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memcpy (n, sym, len + 1);
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section = bfd_make_section (abfd, n);
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if (section == NULL)
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return false;
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}
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alt_section = NULL;
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while (src < src_end && *src)
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{
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switch (*src)
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{
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case '1': /* Section range. */
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src++;
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if (!getvalue (&src, §ion->vma, src_end))
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return false;
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if (!getvalue (&src, &val, src_end))
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return false;
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if (val < section->vma)
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val = section->vma;
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section->size = val - section->vma;
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/* PR 17512: file: objdump-s-endless-loop.tekhex.
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Check for overlarge section sizes. */
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if (section->size & 0x80000000)
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return false;
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section->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC;
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break;
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case '0':
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case '2':
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case '3':
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case '4':
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case '6':
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case '7':
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case '8':
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/* Symbols, add to section. */
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{
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size_t amt = sizeof (tekhex_symbol_type);
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tekhex_symbol_type *new_symbol = (tekhex_symbol_type *)
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bfd_alloc (abfd, amt);
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char stype = (*src);
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if (!new_symbol)
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return false;
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new_symbol->symbol.the_bfd = abfd;
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src++;
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abfd->symcount++;
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abfd->flags |= HAS_SYMS;
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new_symbol->prev = abfd->tdata.tekhex_data->symbols;
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abfd->tdata.tekhex_data->symbols = new_symbol;
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if (!getsym (sym, &src, &len, src_end))
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return false;
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new_symbol->symbol.name = (const char *)
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bfd_alloc (abfd, (bfd_size_type) len + 1);
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if (!new_symbol->symbol.name)
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return false;
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memcpy ((char *) (new_symbol->symbol.name), sym, len + 1);
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new_symbol->symbol.section = section;
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if (stype <= '4')
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new_symbol->symbol.flags = (BSF_GLOBAL | BSF_EXPORT);
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else
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new_symbol->symbol.flags = BSF_LOCAL;
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if (stype == '2' || stype == '6')
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new_symbol->symbol.section = bfd_abs_section_ptr;
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else if (stype == '3' || stype == '7')
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{
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if ((section->flags & SEC_DATA) == 0)
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section->flags |= SEC_CODE;
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else
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{
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if (alt_section == NULL)
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alt_section
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= bfd_get_next_section_by_name (NULL, section);
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if (alt_section == NULL)
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alt_section = bfd_make_section_anyway_with_flags
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(abfd, section->name,
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(section->flags & ~SEC_DATA) | SEC_CODE);
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if (alt_section == NULL)
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return false;
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new_symbol->symbol.section = alt_section;
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}
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}
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else if (stype == '4' || stype == '8')
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{
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if ((section->flags & SEC_CODE) == 0)
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section->flags |= SEC_DATA;
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else
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{
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if (alt_section == NULL)
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alt_section
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= bfd_get_next_section_by_name (NULL, section);
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if (alt_section == NULL)
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alt_section = bfd_make_section_anyway_with_flags
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(abfd, section->name,
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(section->flags & ~SEC_CODE) | SEC_DATA);
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if (alt_section == NULL)
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return false;
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new_symbol->symbol.section = alt_section;
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}
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}
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if (!getvalue (&src, &val, src_end))
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return false;
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new_symbol->symbol.value = val - section->vma;
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break;
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}
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default:
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return false;
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|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/* Pass over a tekhex, calling one of the above functions on each
|
|
record. */
|
|
|
|
static bool
|
|
pass_over (bfd *abfd, bool (*func) (bfd *, int, char *, char *))
|
|
{
|
|
unsigned int chars_on_line;
|
|
bool is_eof = false;
|
|
|
|
/* To the front of the file. */
|
|
if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
|
|
return false;
|
|
|
|
while (! is_eof)
|
|
{
|
|
char src[MAXCHUNK];
|
|
char type;
|
|
|
|
/* Find first '%'. */
|
|
is_eof = (bool) (bfd_bread (src, (bfd_size_type) 1, abfd) != 1);
|
|
while (!is_eof && *src != '%')
|
|
is_eof = (bool) (bfd_bread (src, (bfd_size_type) 1, abfd) != 1);
|
|
|
|
if (is_eof)
|
|
break;
|
|
|
|
/* Fetch the type and the length and the checksum. */
|
|
if (bfd_bread (src, (bfd_size_type) 5, abfd) != 5)
|
|
return false;
|
|
|
|
type = src[2];
|
|
|
|
if (!ISHEX (src[0]) || !ISHEX (src[1]))
|
|
break;
|
|
|
|
/* Already read five chars. */
|
|
chars_on_line = HEX (src) - 5;
|
|
|
|
if (chars_on_line >= MAXCHUNK)
|
|
return false;
|
|
|
|
if (bfd_bread (src, (bfd_size_type) chars_on_line, abfd) != chars_on_line)
|
|
return false;
|
|
|
|
/* Put a null at the end. */
|
|
src[chars_on_line] = 0;
|
|
if (!func (abfd, type, src, src + chars_on_line))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static long
|
|
tekhex_canonicalize_symtab (bfd *abfd, asymbol **table)
|
|
{
|
|
tekhex_symbol_type *p = abfd->tdata.tekhex_data->symbols;
|
|
unsigned int c = bfd_get_symcount (abfd);
|
|
|
|
table[c] = 0;
|
|
while (p)
|
|
{
|
|
table[--c] = &(p->symbol);
|
|
p = p->prev;
|
|
}
|
|
|
|
return bfd_get_symcount (abfd);
|
|
}
|
|
|
|
static long
|
|
tekhex_get_symtab_upper_bound (bfd *abfd)
|
|
{
|
|
return (abfd->symcount + 1) * (sizeof (struct tekhex_asymbol_struct *));
|
|
|
|
}
|
|
|
|
static bool
|
|
tekhex_mkobject (bfd *abfd)
|
|
{
|
|
tdata_type *tdata;
|
|
|
|
tdata = (tdata_type *) bfd_alloc (abfd, (bfd_size_type) sizeof (tdata_type));
|
|
if (!tdata)
|
|
return false;
|
|
abfd->tdata.tekhex_data = tdata;
|
|
tdata->type = 1;
|
|
tdata->head = NULL;
|
|
tdata->symbols = NULL;
|
|
tdata->data = NULL;
|
|
return true;
|
|
}
|
|
|
|
/* Return TRUE if the file looks like it's in TekHex format. Just look
|
|
for a percent sign and some hex digits. */
|
|
|
|
static bfd_cleanup
|
|
tekhex_object_p (bfd *abfd)
|
|
{
|
|
char b[4];
|
|
|
|
tekhex_init ();
|
|
|
|
if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
|
|
|| bfd_bread (b, (bfd_size_type) 4, abfd) != 4)
|
|
return NULL;
|
|
|
|
if (b[0] != '%' || !ISHEX (b[1]) || !ISHEX (b[2]) || !ISHEX (b[3]))
|
|
return NULL;
|
|
|
|
tekhex_mkobject (abfd);
|
|
|
|
if (!pass_over (abfd, first_phase))
|
|
return NULL;
|
|
|
|
return _bfd_no_cleanup;
|
|
}
|
|
|
|
static void
|
|
move_section_contents (bfd *abfd,
|
|
asection *section,
|
|
const void * locationp,
|
|
file_ptr offset,
|
|
bfd_size_type count,
|
|
bool get)
|
|
{
|
|
bfd_vma addr;
|
|
char *location = (char *) locationp;
|
|
bfd_vma prev_number = 1; /* Nothing can have this as a high bit. */
|
|
struct data_struct *d = NULL;
|
|
|
|
BFD_ASSERT (offset == 0);
|
|
for (addr = section->vma; count != 0; count--, addr++)
|
|
{
|
|
/* Get high bits of address. */
|
|
bfd_vma chunk_number = addr & ~(bfd_vma) CHUNK_MASK;
|
|
bfd_vma low_bits = addr & CHUNK_MASK;
|
|
bool must_write = !get && *location != 0;
|
|
|
|
if (chunk_number != prev_number || (!d && must_write))
|
|
{
|
|
/* Different chunk, so move pointer. */
|
|
d = find_chunk (abfd, chunk_number, must_write);
|
|
prev_number = chunk_number;
|
|
}
|
|
|
|
if (get)
|
|
{
|
|
if (d)
|
|
*location = d->chunk_data[low_bits];
|
|
else
|
|
*location = 0;
|
|
}
|
|
else if (must_write)
|
|
{
|
|
d->chunk_data[low_bits] = *location;
|
|
d->chunk_init[low_bits / CHUNK_SPAN] = 1;
|
|
}
|
|
|
|
location++;
|
|
}
|
|
}
|
|
|
|
static bool
|
|
tekhex_get_section_contents (bfd *abfd,
|
|
asection *section,
|
|
void * locationp,
|
|
file_ptr offset,
|
|
bfd_size_type count)
|
|
{
|
|
if (section->flags & (SEC_LOAD | SEC_ALLOC))
|
|
{
|
|
move_section_contents (abfd, section, locationp, offset, count, true);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool
|
|
tekhex_set_arch_mach (bfd *abfd,
|
|
enum bfd_architecture arch,
|
|
unsigned long machine)
|
|
{
|
|
/* Ignore errors about unknown architecture. */
|
|
return (bfd_default_set_arch_mach (abfd, arch, machine)
|
|
|| arch == bfd_arch_unknown);
|
|
}
|
|
|
|
/* We have to save up all the Tekhexords for a splurge before output. */
|
|
|
|
static bool
|
|
tekhex_set_section_contents (bfd *abfd,
|
|
sec_ptr section,
|
|
const void * locationp,
|
|
file_ptr offset,
|
|
bfd_size_type bytes_to_do)
|
|
{
|
|
if (section->flags & (SEC_LOAD | SEC_ALLOC))
|
|
{
|
|
move_section_contents (abfd, section, locationp, offset, bytes_to_do,
|
|
false);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static void
|
|
writevalue (char **dst, bfd_vma value)
|
|
{
|
|
char *p = *dst;
|
|
int len;
|
|
int shift;
|
|
|
|
for (len = 8, shift = 28; shift; shift -= 4, len--)
|
|
{
|
|
if ((value >> shift) & 0xf)
|
|
{
|
|
*p++ = len + '0';
|
|
while (len)
|
|
{
|
|
*p++ = digs[(value >> shift) & 0xf];
|
|
shift -= 4;
|
|
len--;
|
|
}
|
|
*dst = p;
|
|
return;
|
|
|
|
}
|
|
}
|
|
*p++ = '1';
|
|
*p++ = '0';
|
|
*dst = p;
|
|
}
|
|
|
|
static void
|
|
writesym (char **dst, const char *sym)
|
|
{
|
|
char *p = *dst;
|
|
int len = (sym ? strlen (sym) : 0);
|
|
|
|
if (len >= 16)
|
|
{
|
|
*p++ = '0';
|
|
len = 16;
|
|
}
|
|
else
|
|
{
|
|
if (len == 0)
|
|
{
|
|
*p++ = '1';
|
|
sym = "$";
|
|
len = 1;
|
|
}
|
|
else
|
|
*p++ = digs[len];
|
|
}
|
|
|
|
while (len--)
|
|
*p++ = *sym++;
|
|
|
|
*dst = p;
|
|
}
|
|
|
|
static void
|
|
out (bfd *abfd, int type, char *start, char *end)
|
|
{
|
|
int sum = 0;
|
|
char *s;
|
|
char front[6];
|
|
bfd_size_type wrlen;
|
|
|
|
front[0] = '%';
|
|
TOHEX (front + 1, end - start + 5);
|
|
front[3] = type;
|
|
|
|
for (s = start; s < end; s++)
|
|
sum += sum_block[(unsigned char) *s];
|
|
|
|
sum += sum_block[(unsigned char) front[1]]; /* Length. */
|
|
sum += sum_block[(unsigned char) front[2]];
|
|
sum += sum_block[(unsigned char) front[3]]; /* Type. */
|
|
TOHEX (front + 4, sum);
|
|
if (bfd_bwrite (front, (bfd_size_type) 6, abfd) != 6)
|
|
abort ();
|
|
end[0] = '\n';
|
|
wrlen = end - start + 1;
|
|
if (bfd_bwrite (start, wrlen, abfd) != wrlen)
|
|
abort ();
|
|
}
|
|
|
|
static bool
|
|
tekhex_write_object_contents (bfd *abfd)
|
|
{
|
|
char buffer[100];
|
|
asymbol **p;
|
|
asection *s;
|
|
struct data_struct *d;
|
|
|
|
tekhex_init ();
|
|
|
|
/* And the raw data. */
|
|
for (d = abfd->tdata.tekhex_data->data;
|
|
d != NULL;
|
|
d = d->next)
|
|
{
|
|
int low;
|
|
int addr;
|
|
|
|
/* Write it in blocks of 32 bytes. */
|
|
for (addr = 0; addr < CHUNK_MASK + 1; addr += CHUNK_SPAN)
|
|
{
|
|
if (d->chunk_init[addr / CHUNK_SPAN])
|
|
{
|
|
char *dst = buffer;
|
|
|
|
writevalue (&dst, addr + d->vma);
|
|
for (low = 0; low < CHUNK_SPAN; low++)
|
|
{
|
|
TOHEX (dst, d->chunk_data[addr + low]);
|
|
dst += 2;
|
|
}
|
|
out (abfd, '6', buffer, dst);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Write all the section headers for the sections. */
|
|
for (s = abfd->sections; s != NULL; s = s->next)
|
|
{
|
|
char *dst = buffer;
|
|
|
|
writesym (&dst, s->name);
|
|
*dst++ = '1';
|
|
writevalue (&dst, s->vma);
|
|
writevalue (&dst, s->vma + s->size);
|
|
out (abfd, '3', buffer, dst);
|
|
}
|
|
|
|
/* And the symbols. */
|
|
if (abfd->outsymbols)
|
|
{
|
|
for (p = abfd->outsymbols; *p; p++)
|
|
{
|
|
int section_code = bfd_decode_symclass (*p);
|
|
|
|
if (section_code != '?')
|
|
{
|
|
/* Do not include debug symbols. */
|
|
asymbol *sym = *p;
|
|
char *dst = buffer;
|
|
|
|
writesym (&dst, sym->section->name);
|
|
|
|
switch (section_code)
|
|
{
|
|
case 'A':
|
|
*dst++ = '2';
|
|
break;
|
|
case 'a':
|
|
*dst++ = '6';
|
|
break;
|
|
case 'D':
|
|
case 'B':
|
|
case 'O':
|
|
*dst++ = '4';
|
|
break;
|
|
case 'd':
|
|
case 'b':
|
|
case 'o':
|
|
*dst++ = '8';
|
|
break;
|
|
case 'T':
|
|
*dst++ = '3';
|
|
break;
|
|
case 't':
|
|
*dst++ = '7';
|
|
break;
|
|
case 'C':
|
|
case 'U':
|
|
bfd_set_error (bfd_error_wrong_format);
|
|
return false;
|
|
}
|
|
|
|
writesym (&dst, sym->name);
|
|
writevalue (&dst, sym->value + sym->section->vma);
|
|
out (abfd, '3', buffer, dst);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* And the terminator. */
|
|
if (bfd_bwrite ("%0781010\n", (bfd_size_type) 9, abfd) != 9)
|
|
abort ();
|
|
return true;
|
|
}
|
|
|
|
static int
|
|
tekhex_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
|
|
struct bfd_link_info *info ATTRIBUTE_UNUSED)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static asymbol *
|
|
tekhex_make_empty_symbol (bfd *abfd)
|
|
{
|
|
size_t amt = sizeof (struct tekhex_symbol_struct);
|
|
tekhex_symbol_type *new_symbol = (tekhex_symbol_type *) bfd_zalloc (abfd,
|
|
amt);
|
|
|
|
if (!new_symbol)
|
|
return NULL;
|
|
new_symbol->symbol.the_bfd = abfd;
|
|
new_symbol->prev = NULL;
|
|
return &(new_symbol->symbol);
|
|
}
|
|
|
|
static void
|
|
tekhex_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
|
|
asymbol *symbol,
|
|
symbol_info *ret)
|
|
{
|
|
bfd_symbol_info (symbol, ret);
|
|
}
|
|
|
|
static void
|
|
tekhex_print_symbol (bfd *abfd,
|
|
void * filep,
|
|
asymbol *symbol,
|
|
bfd_print_symbol_type how)
|
|
{
|
|
FILE *file = (FILE *) filep;
|
|
|
|
switch (how)
|
|
{
|
|
case bfd_print_symbol_name:
|
|
fprintf (file, "%s", symbol->name);
|
|
break;
|
|
case bfd_print_symbol_more:
|
|
break;
|
|
|
|
case bfd_print_symbol_all:
|
|
{
|
|
const char *section_name = symbol->section->name;
|
|
|
|
bfd_print_symbol_vandf (abfd, (void *) file, symbol);
|
|
|
|
fprintf (file, " %-5s %s",
|
|
section_name, symbol->name);
|
|
}
|
|
}
|
|
}
|
|
|
|
#define tekhex_close_and_cleanup _bfd_generic_close_and_cleanup
|
|
#define tekhex_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
|
|
#define tekhex_new_section_hook _bfd_generic_new_section_hook
|
|
#define tekhex_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false
|
|
#define tekhex_bfd_is_local_label_name bfd_generic_is_local_label_name
|
|
#define tekhex_get_lineno _bfd_nosymbols_get_lineno
|
|
#define tekhex_find_nearest_line _bfd_nosymbols_find_nearest_line
|
|
#define tekhex_find_line _bfd_nosymbols_find_line
|
|
#define tekhex_find_inliner_info _bfd_nosymbols_find_inliner_info
|
|
#define tekhex_get_symbol_version_string _bfd_nosymbols_get_symbol_version_string
|
|
#define tekhex_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
|
|
#define tekhex_read_minisymbols _bfd_generic_read_minisymbols
|
|
#define tekhex_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
|
|
#define tekhex_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
|
|
#define tekhex_bfd_relax_section bfd_generic_relax_section
|
|
#define tekhex_bfd_gc_sections bfd_generic_gc_sections
|
|
#define tekhex_bfd_lookup_section_flags bfd_generic_lookup_section_flags
|
|
#define tekhex_bfd_merge_sections bfd_generic_merge_sections
|
|
#define tekhex_bfd_is_group_section bfd_generic_is_group_section
|
|
#define tekhex_bfd_group_name bfd_generic_group_name
|
|
#define tekhex_bfd_discard_group bfd_generic_discard_group
|
|
#define tekhex_section_already_linked _bfd_generic_section_already_linked
|
|
#define tekhex_bfd_define_common_symbol bfd_generic_define_common_symbol
|
|
#define tekhex_bfd_link_hide_symbol _bfd_generic_link_hide_symbol
|
|
#define tekhex_bfd_define_start_stop bfd_generic_define_start_stop
|
|
#define tekhex_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
|
|
#define tekhex_bfd_link_add_symbols _bfd_generic_link_add_symbols
|
|
#define tekhex_bfd_link_just_syms _bfd_generic_link_just_syms
|
|
#define tekhex_bfd_copy_link_hash_symbol_type _bfd_generic_copy_link_hash_symbol_type
|
|
#define tekhex_bfd_final_link _bfd_generic_final_link
|
|
#define tekhex_bfd_link_split_section _bfd_generic_link_split_section
|
|
#define tekhex_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
|
|
#define tekhex_bfd_link_check_relocs _bfd_generic_link_check_relocs
|
|
|
|
const bfd_target tekhex_vec =
|
|
{
|
|
"tekhex", /* Name. */
|
|
bfd_target_tekhex_flavour,
|
|
BFD_ENDIAN_UNKNOWN, /* Target byte order. */
|
|
BFD_ENDIAN_UNKNOWN, /* Target headers byte order. */
|
|
(EXEC_P | /* Object flags. */
|
|
HAS_SYMS | HAS_LINENO | HAS_DEBUG |
|
|
HAS_RELOC | HAS_LOCALS | WP_TEXT | D_PAGED),
|
|
(SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
|
|
| SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */
|
|
0, /* Leading underscore. */
|
|
' ', /* AR_pad_char. */
|
|
16, /* AR_max_namelen. */
|
|
0, /* match priority. */
|
|
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
|
|
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
|
|
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
|
|
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
|
|
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
|
|
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
|
|
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */
|
|
|
|
{
|
|
_bfd_dummy_target,
|
|
tekhex_object_p, /* bfd_check_format. */
|
|
_bfd_dummy_target,
|
|
_bfd_dummy_target,
|
|
},
|
|
{
|
|
_bfd_bool_bfd_false_error,
|
|
tekhex_mkobject,
|
|
_bfd_generic_mkarchive,
|
|
_bfd_bool_bfd_false_error,
|
|
},
|
|
{ /* bfd_write_contents. */
|
|
_bfd_bool_bfd_false_error,
|
|
tekhex_write_object_contents,
|
|
_bfd_write_archive_contents,
|
|
_bfd_bool_bfd_false_error,
|
|
},
|
|
|
|
BFD_JUMP_TABLE_GENERIC (tekhex),
|
|
BFD_JUMP_TABLE_COPY (_bfd_generic),
|
|
BFD_JUMP_TABLE_CORE (_bfd_nocore),
|
|
BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
|
|
BFD_JUMP_TABLE_SYMBOLS (tekhex),
|
|
BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
|
|
BFD_JUMP_TABLE_WRITE (tekhex),
|
|
BFD_JUMP_TABLE_LINK (tekhex),
|
|
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
|
|
|
|
NULL,
|
|
|
|
NULL
|
|
};
|