1 # Test linking directly to S-records.
2 # By Ian Lance Taylor, Cygnus Support.
3 # Copyright (C) 1999-2014 Free Software Foundation, Inc.
5 # This file is part of the GNU Binutils.
7 # This program is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 3 of the License, or
10 # (at your option) any later version.
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program; if not, write to the Free Software
19 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
25 # Get the offset from an S-record line to the start of the data.
28 if [string match "S1*" $l] {
30 } else { if [string match "S2*" $l] {
32 } else { if [string match "S3*" $l] {
39 # See if an S-record line contains only zero data.
41 proc srec_zero { l } {
42 if [string match "S\[0789\]*" $l] {
46 # Strip the address and checksum.
47 if [string match "S\[123\]*" $l] {
48 set l [string range $l [srec_off $l] [expr [string length $l] - 3]]
53 # The rest must be zero.
54 return [string match "" [string trim $l "0"]]
57 # Get the address of an S-record line.
59 proc srec_addr { l } {
60 if [string match "S\[123\]*" $l] {
61 set addr [string range $l 4 [expr [srec_off $l] - 1]]
69 # Get the number of data bytes in an S-record line.
72 if ![string match "S\[123\]*" $l] {
76 return [expr "0x[string range $l 2 3]" - ([srec_off $l] - 4) / 2 - 1]
79 # Extract bytes from an S-record line.
81 proc srec_extract { l start len } {
83 set rlen [srec_len $l]
84 set stop [expr $start + $len]
85 if { $stop > $rlen } {
88 set start [expr $start * 2 + $off]
89 set stop [expr $stop * 2 + $off - 1]
90 return [string range $l $start $stop]
93 # See if a range of bytes in an S-record line is all zeroes.
95 proc srec_zero_range { l start len } {
96 return [string match "" [string trim [srec_extract $l $start $len] "0"]]
99 # Trim an S-record line such that the specified number of bytes remain
102 proc srec_trim { l leave } {
103 set off [srec_off $l]
104 set addr [srec_addr $l]
105 set len [srec_len $l]
107 if { $leave >= $len } {
111 set s1 [string range $l 0 1]
112 set s2 [format "%02x" [expr ($off - 4) / 2 + $leave + 1]]
113 set s3 [format "%0[expr $off - 4]x" [expr $addr + $len - $leave]]
114 set s4 [string range $l [expr [string length $l] - ($leave * 2) - 2] end]
115 set s "${s1}${s2}${s3}${s4}"
117 verbose "srec_trim { '$l' $leave } returning '$s'" 2
122 # Report failure when comparing S-record lines
124 proc srec_compare_fail { which l1 l2 } {
125 send_log "comparison failure $which:\n$l1\n$l2\n"
126 verbose "comparison failure $which:\n$l1\n$l2"
129 # Compare S-record files. We don't want to fuss about things like
130 # extra zeroes. Note that BFD always sorts S-records by address.
132 proc srec_compare { f1 f2 } {
136 while { $e1 != -1 } {
137 set l1 [string trimright $l1 "\r\n"]
138 set l2 [string trimright $l2 "\r\n"]
140 # If l1 contains data, it must be zero.
141 if ![srec_zero $l1] {
142 send_log "data after EOF: $l1\n"
143 verbose "data after EOF: $l1"
146 } else { if { [string compare $l1 $l2] == 0 } {
149 } else { if { [srec_zero $l1] } {
151 } else { if { [srec_zero $l2] } {
154 # The strings are not the same, and neither is all zeroes.
155 set a1 [srec_addr $l1]
156 set n1 [srec_len $l1]
157 set a2 [srec_addr $l2]
158 set n2 [srec_len $l2]
160 if { $a1 < $a2 && ![srec_zero_range $l1 0 [expr $a2 - $a1]] } {
161 verbose "$a1 $a2 [srec_extract $l1 0 [expr $a2 - $a1]]" 2
162 srec_compare_fail 1 $l1 $l2
165 if { $a2 < $a1 && ![srec_zero_range $l2 0 [expr $a1 - $a2]] } {
166 srec_compare_fail 2 $l1 $l2
170 # Here we know that any initial data in both lines is
171 # zero. Now make sure that any overlapping data matches.
173 set os1 [expr $a2 - $a1]
177 set os2 [expr $a1 - $a2]
179 if { $a1 + $n1 < $a2 + $n2 } {
180 set ol [expr $n1 - $os1]
182 set ol [expr $n2 - $os2]
185 set x1 [srec_extract $l1 $os1 $ol]
186 set x2 [srec_extract $l2 $os2 $ol]
187 if { [string compare $x1 $x2] != 0 } {
188 verbose "$os1 $ol $x1" 2
189 verbose "$os2 $ol $x2" 2
190 srec_compare_fail 3 $l1 $l2
194 # These strings match. Trim the data from the larger
195 # string, read a new copy of the smaller string, and
197 if { $a1 + $n1 < $a2 + $n2 } {
198 set l2 [srec_trim $l2 [expr ($a2 + $n2) - ($a1 + $n1)]]
200 } else { if { $a1 + $n1 > $a2 + $n2 } {
201 set l1 [srec_trim $l1 [expr ($a1 + $n1) - ($a2 + $n2)]]
210 # We've reached the end of the first file. The remainder of the
211 # second file must contain only zeroes.
212 while { $e2 != -1 } {
213 set l2 [string trimright $l2 "\r\n"]
214 if ![srec_zero $l2] {
215 send_log "data after EOF: $l2\n"
216 verbose "data after EOF: $l2"
225 # Link twice, objcopy, and compare
227 proc run_srec_test { test objs } {
230 global sizeof_headers
233 # Tell the ELF linker to not do anything clever with .eh_frame,
234 # not to put anything in small data, and define various symbols.
235 set flags "--traditional-format -G 0 "
236 append flags [ld_simple_link_defsyms]
238 # If the linker script uses SIZEOF_HEADERS, use a -Ttext argument
239 # to force both the normal link and the S-record link to be put in
240 # the same place. We don't always use -Ttext because it interacts
243 if { $sizeof_headers } {
244 set flags "$flags -Ttext 0x1000"
247 if [istarget sh64*-*-elf] {
248 # This is what gcc passes to ld by default.
249 set flags "$flags -mshelf32"
250 # SH64 targets cannot convert format in the linker
251 # using the -oformat command line switch.
252 setup_xfail "sh64*-*-*"
255 if {[istarget aarch64*-*-*] || \
256 [istarget arm*-*-*]} {
257 # ARM targets cannot convert format in the linker
258 # using the --oformat command line switch
259 setup_xfail "aarch64-*-*"
260 setup_xfail "aarch64_be-*-*"
261 setup_xfail "arm*-*-*"
264 # V850 targets need libgcc.a
265 if [istarget v850*-*-elf] {
266 set objs "$objs -L ../gcc -lgcc"
269 # Xtensa ELF targets relax by default; S-Record linker does not
270 if [istarget xtensa*-*-*] {
271 set flags "$flags -no-relax"
274 # MSP430 targets always relax.
275 if [istarget msp430*-*-*] {
276 setup_xfail "msp430*-*-*"
279 # Epiphany needs some help too
280 if [istarget epiphany*-*-*] {
281 set flags "$flags --defsym _start=00000060"
282 setup_xfail "epiphany*-*-*"
285 if [istarget m681*-*-*] {
286 set flags "$flags --defsym _start=0xc000"
287 setup_xfail "m681*-*-*"
290 if [istarget m68hc1*-*-*] {
291 set flags "$flags --defsym _start=0xc000"
292 setup_xfail "m68hc1*-*-*"
295 if [istarget m9s12x*-*-*] {
296 set flags "$flags --defsym _start=0xc000"
297 setup_xfail "m9s12x*-*-*"
300 if { ![ld_simple_link $ld tmpdir/sr1 "$flags $objs"] \
301 || ![ld_simple_link $ld tmpdir/sr2.sr "$flags --oformat srec $objs"] } {
306 send_log "$objcopy -O srec tmpdir/sr1 tmpdir/sr1.sr\n"
307 set exec_output [run_host_cmd "$objcopy" "-O srec tmpdir/sr1 tmpdir/sr1.sr"]
308 set exec_output [prune_warnings $exec_output]
309 if ![string match "" $exec_output] {
310 send_log "$exec_output\n"
311 verbose "$exec_output"
316 set f1 [open tmpdir/sr1.sr r]
317 set f2 [open tmpdir/sr2.sr r]
318 if [srec_compare $f1 $f2] {
327 set test1 "S-records"
328 set test2 "S-records with constructors"
330 # See whether the default linker script uses SIZEOF_HEADERS.
331 set exec_output [run_host_cmd "$ld" "--verbose"]
332 set sizeof_headers [string match "*SIZEOF_HEADERS*" $exec_output]
334 # First test linking a C program. We don't require any libraries. We
335 # link it normally, and objcopy to the S-record format, and then link
336 # directly to the S-record format, and require that the two files
337 # contain the same data.
339 if { ![is_remote host] && [which $CC] == 0 } {
345 if { ![ld_compile $CC $srcdir/$subdir/sr1.c tmpdir/sr1.o] \
346 || ![ld_compile $CC $srcdir/$subdir/sr2.c tmpdir/sr2.o] } {
352 # The i386-aout target is confused: the linker does not put the
353 # sections where objdump finds them. I don't know which is wrong.
354 setup_xfail "i*86-*-aout*"
356 # These tests fail on the native MIPS ELF targets because the GP value
357 # in the .reginfo section is not updated when the S-record version is
358 # written out. The mips-elf target itself does not use a .reginfo section.
359 setup_xfail "mips*-*-irix5*" "mips*-*-irix6*" "mips*-*-linux*"
361 # The S-record linker doesn't do the magic TOC handling that XCOFF
363 setup_xfail "*-*-aix*" "*-*-xcoff*"
365 # The S-record linker doesn't build ARM/Thumb stubs.
366 setup_xfail "arm-*-coff"
367 setup_xfail "arm-*-pe*"
368 # setup_xfail "arm-*elf*"
369 setup_xfail "arm*-*-linux*"
371 # The S-record linker doesn't include the .{zda} sections.
372 setup_xfail "v850*-*-elf"
374 # The S-record linker doesn't handle Alpha Elf relaxation.
375 setup_xfail "alpha*-*-elf*" "alpha*-*-linux-*" "alpha*-*-gnu*"
376 setup_xfail "alpha*-*-netbsd*"
378 # The S-record linker hasn't any hope of coping with HPPA relocs.
379 # Or MeP complex relocs.
380 setup_xfail "hppa*-*-*" "mep-*-*"
382 # The S-record linker doesn't handle IA64 Elf relaxation.
383 setup_xfail "ia64-*-*"
385 # The S-record linker doesn't support the special PE headers - the PE
386 # emulation tries to write pe-specific information to the PE headers
387 # in the output bfd, but it's not a PE bfd (it's an srec bfd)
388 setup_xfail "*-*-cygwin*" "*-*-mingw*" "*-*-pe*" "*-*-winnt*"
389 setup_xfail "score-*-*"
391 # The S-record linker doesn't support Blackfin ELF FDPIC ABI.
392 setup_xfail "bfin-*-linux-uclibc"
394 # On tile, we appear to be getting some random-seeming zeroing or 24-bit
395 # rightshifts (!) in the output when directly generating S-records from
396 # the linker. Not clear what could be causing this but we don't
397 # anticipate creating s-records (and could always use objcopy to
398 # generate the format if need be).
399 setup_xfail "tile*-*-*"
401 run_srec_test $test1 "tmpdir/sr1.o tmpdir/sr2.o"
403 # Now try linking a C++ program with global constructors and
404 # destructors. Note that since we are not linking against any
405 # libraries, this program won't actually work or anything.
407 if { ![is_remote host] && [which $CXX] == 0 } {
412 if ![ld_compile "$CXX $CXXFLAGS -fno-exceptions" $srcdir/$subdir/sr3.cc tmpdir/sr3.o] {
418 setup_xfail "i*86-*-aout*"
419 setup_xfail "mips*-*-irix5*" "mips*-*-irix6*" "mips*-*-linux*"
420 setup_xfail "*-*-aix*" "*-*-xcoff*"
421 setup_xfail "arm*-*-*"
422 setup_xfail "v850*-*-elf"
423 setup_xfail "alpha*-*-elf*" "alpha*-*-linux-*" "alpha*-*-gnu*"
424 setup_xfail "alpha*-*-netbsd*"
425 setup_xfail "hppa*-*-*" "mep-*-*"
426 setup_xfail "ia64-*-*"
427 setup_xfail "*-*-cygwin*" "*-*-mingw*" "*-*-pe*" "*-*-winnt*"
428 setup_xfail "score-*-*"
429 setup_xfail "bfin-*-linux-uclibc"
430 setup_xfail "tile*-*-*"
432 run_srec_test $test2 "tmpdir/sr3.o"