1 # Test linking directly to S-records.
2 # By Ian Lance Taylor, Cygnus Support.
3 # Copyright 1999, 2000, 2001, 2002, 2003
4 # Free Software Foundation, Inc.
6 # This file is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 # Get the offset from an S-record line to the start of the data.
23 if [string match "S1*" $l] {
25 } else { if [string match "S2*" $l] {
27 } else { if [string match "S3*" $l] {
34 # See if an S-record line contains only zero data.
36 proc srec_zero { l } {
37 if [string match "S\[0789\]*" $l] {
41 # Strip the address and checksum.
42 if [string match "S\[123\]*" $l] {
43 set l [string range $l [srec_off $l] [expr [string length $l] - 3]]
48 # The rest must be zero.
49 return [string match "" [string trim $l "0"]]
52 # Get the address of an S-record line.
54 proc srec_addr { l } {
55 if [string match "S\[123\]*" $l] {
56 set addr [string range $l 4 [expr [srec_off $l] - 1]]
64 # Get the number of data bytes in an S-record line.
67 if ![string match "S\[123\]*" $l] {
71 return [expr "0x[string range $l 2 3]" - ([srec_off $l] - 4) / 2 - 1]
74 # Extract bytes from an S-record line.
76 proc srec_extract { l start len } {
78 set rlen [srec_len $l]
79 set stop [expr $start + $len]
80 if { $stop > $rlen } {
83 set start [expr $start * 2 + $off]
84 set stop [expr $stop * 2 + $off - 1]
85 return [string range $l $start $stop]
88 # See if a range of bytes in an S-record line is all zeroes.
90 proc srec_zero_range { l start len } {
91 return [string match "" [string trim [srec_extract $l $start $len] "0"]]
94 # Trim an S-record line such that the specified number of bytes remain
97 proc srec_trim { l leave } {
99 set addr [srec_addr $l]
100 set len [srec_len $l]
102 if { $leave >= $len } {
106 set s1 [string range $l 0 1]
107 set s2 [format "%02x" [expr ($off - 4) / 2 + $leave + 1]]
108 set s3 [format "%0[expr $off - 4]x" [expr $addr + $len - $leave]]
109 set s4 [string range $l [expr [string length $l] - ($leave * 2) - 2] end]
110 set s "${s1}${s2}${s3}${s4}"
112 verbose "srec_trim { '$l' $leave } returning '$s'" 2
117 # Report failure when comparing S-record lines
119 proc srec_compare_fail { which l1 l2 } {
120 send_log "comparison failure $which:\n$l1\n$l2\n"
121 verbose "comparison failure $which:\n$l1\n$l2"
124 # Compare S-record files. We don't want to fuss about things like
125 # extra zeroes. Note that BFD always sorts S-records by address.
127 proc srec_compare { f1 f2 } {
131 while { $e1 != -1 } {
132 set l1 [string trimright $l1 "\r\n"]
133 set l2 [string trimright $l2 "\r\n"]
135 # If l1 contains data, it must be zero.
136 if ![srec_zero $l1] {
137 send_log "data after EOF: $l1\n"
138 verbose "data after EOF: $l1"
141 } else { if { [string compare $l1 $l2] == 0 } {
144 } else { if { [srec_zero $l1] } {
146 } else { if { [srec_zero $l2] } {
149 # The strings are not the same, and neither is all zeroes.
150 set a1 [srec_addr $l1]
151 set n1 [srec_len $l1]
152 set a2 [srec_addr $l2]
153 set n2 [srec_len $l2]
155 if { $a1 < $a2 && ![srec_zero_range $l1 0 [expr $a2 - $a1]] } {
156 verbose "$a1 $a2 [srec_extract $l1 0 [expr $a2 - $a1]]" 2
157 srec_compare_fail 1 $l1 $l2
160 if { $a2 < $a1 && ![srec_zero_range $l2 0 [expr $a1 - $a2]] } {
161 srec_compare_fail 2 $l1 $l2
165 # Here we know that any initial data in both lines is
166 # zero. Now make sure that any overlapping data matches.
168 set os1 [expr $a2 - $a1]
172 set os2 [expr $a1 - $a2]
174 if { $a1 + $n1 < $a2 + $n2 } {
175 set ol [expr $n1 - $os1]
177 set ol [expr $n2 - $os2]
180 set x1 [srec_extract $l1 $os1 $ol]
181 set x2 [srec_extract $l2 $os2 $ol]
182 if { [string compare $x1 $x2] != 0 } {
183 verbose "$os1 $ol $x1" 2
184 verbose "$os2 $ol $x2" 2
185 srec_compare_fail 3 $l1 $l2
189 # These strings match. Trim the data from the larger
190 # string, read a new copy of the smaller string, and
192 if { $a1 + $n1 < $a2 + $n2 } {
193 set l2 [srec_trim $l2 [expr ($a2 + $n2) - ($a1 + $n1)]]
195 } else { if { $a1 + $n1 > $a2 + $n2 } {
196 set l1 [srec_trim $l1 [expr ($a1 + $n1) - ($a2 + $n2)]]
205 # We've reached the end of the first file. The remainder of the
206 # second file must contain only zeroes.
207 while { $e2 != -1 } {
208 set l2 [string trimright $l2 "\r\n"]
209 if ![srec_zero $l2] {
210 send_log "data after EOF: $l2\n"
211 verbose "data after EOF: $l2"
220 # Link twice, objcopy, and compare
222 proc run_srec_test { test objs } {
225 global sizeof_headers
228 # Tell the ELF linker to not do anything clever with .eh_frame.
229 set flags "--traditional-format"
231 # If the linker script uses SIZEOF_HEADERS, use a -Ttext argument
232 # to force both the normal link and the S-record link to be put in
233 # the same place. We don't always use -Ttext because it interacts
236 if { $sizeof_headers } {
237 set flags "$flags -Ttext 0x1000"
240 # The a29k compiled code calls V_SPILL and V_FILL. Since we don't
241 # need to run this code, but we don't have definitions for those
242 # functions, we just define them out.
243 if [istarget a29k*-*-*] {
244 set flags "$flags --defsym V_SPILL=0 --defsym V_FILL=0"
247 if [istarget sh64*-*-elf] {
248 # This is what gcc passes to ld by default.
249 set flags "-mshelf32"
250 # SH64 targets cannot convert format in the linker
251 # using the -oformat command line switch.
252 setup_xfail "sh64*-*-*"
255 if {[istarget arm*-*-*] || \
256 [istarget strongarm*-*-*] || \
257 [istarget xscale*-*-*] || \
258 [istarget thumb-*-*] } {
260 # ARM targets call __gccmain
261 set flags "$flags --defsym __gccmain=0"
263 # ARM targets cannot convert format in the linker
264 # using the --oformat command line switch
265 setup_xfail "*arm*-*-*"
266 setup_xfail "xscale-*-*"
267 setup_xfail "thumb-*-*"
270 # PowerPC EABI code calls __eabi.
271 if [istarget powerpc*-*-eabi*] {
272 set flags "$flags --defsym __eabi=0"
275 # mn10200 code calls __truncsipsi2_d0_d2.
276 if {[istarget mn10200*-*-*]} then {
277 set flags "$flags --defsym __truncsipsi2_d0_d2=0"
280 # m6811/m6812 code has references to soft registers.
281 if {[istarget m6811-*-*] || [istarget m6812-*-*]} {
282 set flags "$flags --defsym _.frame=0 --defsym _.d1=0 --defsym _.d2=0"
283 set flags "$flags --defsym _.d3=0 --defsym _.d4=0"
284 set flags "$flags --defsym _.tmp=0 --defsym _.xy=0 --defsym _.z=0"
287 # V850 targets need libgcc.a
288 if [istarget v850*-*-elf] {
289 set objs "$objs -L ../gcc -lgcc"
292 # Xtensa ELF targets relax by default; S-Record linker does not
293 if [istarget xtensa*-*-*] {
294 set flags "$flags -no-relax"
297 # Some OpenBSD targets have ProPolice and reference __guard and
298 # __stack_smash_handler.
299 if [istarget *-*-openbsd*] {
300 set flags "$flags --defsym __guard=0"
301 set flags "$flags --defsym __stack_smash_handler=0"
304 if { ![ld_simple_link $ld tmpdir/sr1 "$flags $objs"] \
305 || ![ld_simple_link $ld tmpdir/sr2.sr "$flags --oformat srec $objs"] } {
310 send_log "$objcopy -O srec tmpdir/sr1 tmpdir/sr1.sr\n"
311 verbose "$objcopy -O srec tmpdir/sr1 tmpdir/sr1.sr"
312 catch "exec $objcopy -O srec tmpdir/sr1 tmpdir/sr1.sr" exec_output
313 set exec_output [prune_warnings $exec_output]
314 if ![string match "" $exec_output] {
315 send_log "$exec_output\n"
316 verbose "$exec_output"
321 set f1 [open tmpdir/sr1.sr r]
322 set f2 [open tmpdir/sr2.sr r]
323 if [srec_compare $f1 $f2] {
332 set test1 "S-records"
333 set test2 "S-records with constructors"
335 # See whether the default linker script uses SIZEOF_HEADERS.
336 catch "exec $ld --verbose" exec_output
337 set sizeof_headers [string match "*SIZEOF_HEADERS*" $exec_output]
339 # First test linking a C program. We don't require any libraries. We
340 # link it normally, and objcopy to the S-record format, and then link
341 # directly to the S-record format, and require that the two files
342 # contain the same data.
344 if { [which $CC] == 0 } {
350 if { ![ld_compile $CC $srcdir/$subdir/sr1.c tmpdir/sr1.o] \
351 || ![ld_compile $CC $srcdir/$subdir/sr2.c tmpdir/sr2.o] } {
357 # The i386-aout target is confused: the linker does not put the
358 # sections where objdump finds them. I don't know which is wrong.
359 setup_xfail "i*86-*-aout*"
361 # These tests fail on the native MIPS ELF targets because the GP value
362 # in the .reginfo section is not updated when the S-record version is
363 # written out. The mips-elf target itself does not use a .reginfo section.
364 setup_xfail "mips*-*-irix5*" "mips*-*-irix6*" "mips*-*-linux*"
366 # The S-record linker doesn't do the magic TOC handling that XCOFF
368 setup_xfail "*-*-aix*" "*-*-xcoff*"
370 # The S-record linker doesn't build ARM/Thumb stubs.
371 setup_xfail "arm-*-coff"
372 setup_xfail "strongarm*-*-coff"
373 setup_xfail "xscale*-*-coff"
374 setup_xfail "arm-*-pe*"
375 # setup_xfail "arm-*elf*"
376 setup_xfail "thumb-*-coff*"
377 setup_xfail "thumb-*-pe*"
378 setup_xfail "thumb-*-elf*"
379 setup_xfail "arm*-*-linux*"
381 # The S-record linker doesn't build special EABI sections.
382 # setup_xfail "powerpc*-*-eabi*"
384 # The S-record linker doesn't include the .{zda} sections.
385 setup_xfail "v850*-*-elf"
387 # The S-record linker doesn't handle Alpha Elf relaxation.
388 setup_xfail "alpha*-*-elf*" "alpha*-*-linux-gnu*" "alpha*-*-gnu*"
389 setup_xfail "alpha*-*-netbsd*"
391 # The S-record linker hasn't any hope of coping with HPPA relocs.
392 setup_xfail "hppa*-*-*"
394 # The S-record linker doesn't handle IA64 Elf relaxation.
395 setup_xfail "ia64-*-*"
397 # The S-record linker doesn't support the special PE headers - the PE
398 # emulation tries to write pe-specific information to the PE headers
399 # in the output bfd, but it's not a PE bfd (it's an srec bfd)
400 setup_xfail "*-*-cygwin*" "*-*-mingw*" "*-*-pe*" "*-*-winnt*"
402 run_srec_test $test1 "tmpdir/sr1.o tmpdir/sr2.o"
404 # Now try linking a C++ program with global constructors and
405 # destructors. Note that since we are not linking against any
406 # libraries, this program won't actually work or anything.
408 if { [which $CXX] == 0 } {
413 if ![ld_compile "$CXX $CXXFLAGS -fno-exceptions" $srcdir/$subdir/sr3.cc tmpdir/sr3.o] {
419 setup_xfail "i*86-*-aout*"
420 setup_xfail "mips*-*-irix5*" "mips*-*-irix6*" "mips*-*-linux*"
421 setup_xfail "*-*-aix*" "*-*-xcoff*"
422 setup_xfail "arm*-*-*"
423 setup_xfail "strongarm*-*-*"
424 setup_xfail "thumb-*-*"
425 setup_xfail "powerpc*-*-eabi*"
426 setup_xfail "v850*-*-elf"
427 setup_xfail "alpha*-*-elf*" "alpha*-*-linux-gnu*" "alpha*-*-gnu*"
428 setup_xfail "alpha*-*-netbsd*"
429 setup_xfail "hppa*-*-*"
430 setup_xfail "ia64-*-*"
431 setup_xfail "*-*-cygwin*" "*-*-mingw*" "*-*-pe*" "*-*-winnt*"
433 run_srec_test $test2 "tmpdir/sr3.o"