1 # Test linking directly to S
-records.
2 # By Ian Lance Taylor
, Cygnus Support.
3 # Copyright
1999, 2000, 2001, 2002, 2003, 2006, 2007, 2009
4 # Free Software Foundation
, Inc.
6 # This file is part of the GNU Binutils.
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.
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.
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
,
23 #
Get the offset from an S
-record line to the start of the data.
26 if [string match
"S1*" $l] {
28 } else { if [string match
"S2*" $l] {
30 } else { if [string match
"S3*" $l] {
37 # See
if an S
-record line contains only zero data.
39 proc srec_zero
{ l
} {
40 if [string match
"S\[0789\]*" $l] {
44 #
Strip the address and checksum.
45 if [string match
"S\[123\]*" $l] {
46 set l
[string range $l
[srec_off $l
] [expr
[string length $l
] - 3]]
51 # The rest must be zero.
52 return [string match
"" [string trim $l "0"]]
55 #
Get the address of an S
-record line.
57 proc srec_addr
{ l
} {
58 if [string match
"S\[123\]*" $l] {
59 set addr
[string range $l
4 [expr
[srec_off $l
] - 1]]
67 #
Get the number of data bytes in an S
-record line.
70 if ![string match
"S\[123\]*" $l] {
74 return [expr
"0x[string range $l 2 3]" - ([srec_off $l] - 4) / 2 - 1]
77 # Extract bytes from an S
-record line.
79 proc srec_extract
{ l start len
} {
81 set rlen
[srec_len $l
]
82 set stop
[expr $start
+ $len
]
83 if { $stop
> $rlen
} {
86 set start
[expr $start
* 2 + $
off]
87 set stop
[expr $stop
* 2 + $
off - 1]
88 return [string range $l $start $stop
]
91 # See
if a range of bytes in an S
-record line is all zeroes.
93 proc srec_zero_range
{ l start len
} {
94 return [string match
"" [string trim [srec_extract $l $start $len] "0"]]
97 # Trim an S
-record line such that the specified number of bytes remain
100 proc srec_trim
{ l leave
} {
101 set off [srec_off $l
]
102 set addr
[srec_addr $l
]
103 set len
[srec_len $l
]
105 if { $leave
>= $len
} {
109 set s1
[string range $l
0 1]
110 set s2
[format
"%02x" [expr ($off - 4) / 2 + $leave + 1]]
111 set s3
[format
"%0[expr $off - 4]x" [expr $addr + $len - $leave]]
112 set s4
[string range $l
[expr
[string length $l
] - ($leave
* 2) - 2] end
]
113 set s
"${s1}${s2}${s3}${s4}"
115 verbose
"srec_trim { '$l' $leave } returning '$s'" 2
120 #
Report failure when comparing S
-record lines
122 proc srec_compare_fail
{ which l1 l2
} {
123 send_log
"comparison failure $which:\n$l1\n$l2\n"
124 verbose
"comparison failure $which:\n$l1\n$l2"
127 # Compare S
-record files. We don
't want to fuss about things like
128 # extra zeroes. Note that BFD always sorts S-records by address.
130 proc srec_compare { f1 f2 } {
134 while { $e1 != -1 } {
135 set l1 [string trimright $l1 "\r\n"]
136 set l2 [string trimright $l2 "\r\n"]
138 # If l1 contains data, it must be zero.
139 if ![srec_zero $l1] {
140 send_log "data after EOF: $l1\n"
141 verbose "data after EOF: $l1"
144 } else { if { [string compare $l1 $l2] == 0 } {
147 } else { if { [srec_zero $l1] } {
149 } else { if { [srec_zero $l2] } {
152 # The strings are not the same, and neither is all zeroes.
153 set a1 [srec_addr $l1]
154 set n1 [srec_len $l1]
155 set a2 [srec_addr $l2]
156 set n2 [srec_len $l2]
158 if { $a1 < $a2 && ![srec_zero_range $l1 0 [expr $a2 - $a1]] } {
159 verbose "$a1 $a2 [srec_extract $l1 0 [expr $a2 - $a1]]" 2
160 srec_compare_fail 1 $l1 $l2
163 if { $a2 < $a1 && ![srec_zero_range $l2 0 [expr $a1 - $a2]] } {
164 srec_compare_fail 2 $l1 $l2
168 # Here we know that any initial data in both lines is
169 # zero. Now make sure that any overlapping data matches.
171 set os1 [expr $a2 - $a1]
175 set os2 [expr $a1 - $a2]
177 if { $a1 + $n1 < $a2 + $n2 } {
178 set ol [expr $n1 - $os1]
180 set ol [expr $n2 - $os2]
183 set x1 [srec_extract $l1 $os1 $ol]
184 set x2 [srec_extract $l2 $os2 $ol]
185 if { [string compare $x1 $x2] != 0 } {
186 verbose "$os1 $ol $x1" 2
187 verbose "$os2 $ol $x2" 2
188 srec_compare_fail 3 $l1 $l2
192 # These strings match. Trim the data from the larger
193 # string, read a new copy of the smaller string, and
195 if { $a1 + $n1 < $a2 + $n2 } {
196 set l2 [srec_trim $l2 [expr ($a2 + $n2) - ($a1 + $n1)]]
198 } else { if { $a1 + $n1 > $a2 + $n2 } {
199 set l1 [srec_trim $l1 [expr ($a1 + $n1) - ($a2 + $n2)]]
208 # We've reached the end of the first file. The remainder of the
209 # second file must contain only zeroes.
210 while { $e2
!= -1 } {
211 set l2
[string trimright $l2
"\r\n"]
212 if ![srec_zero $l2
] {
213 send_log
"data after EOF: $l2\n"
214 verbose
"data after EOF: $l2"
223 # Link twice
, objcopy
, and compare
225 proc run_srec_test
{ test objs
} {
228 global sizeof_headers
231 # Tell the ELF linker to not
do anything clever with .eh_frame
,
232 # not to put anything in small data
, and
define a symbol referenced
233 # by gcc
-fstack
-protector code.
234 set flags
"--traditional-format -G 0 --defsym __stack_chk_fail=0"
236 #
If the linker script uses SIZEOF_HEADERS
, use a
-Ttext
argument
237 # to force both the
normal link and the S
-record link to be put in
238 # the same place. We don
't always use -Ttext because it interacts
241 if { $sizeof_headers } {
242 set flags "$flags -Ttext 0x1000"
245 if [istarget sh64*-*-elf] {
246 # This is what gcc passes to ld by default.
247 set flags "-mshelf32"
248 # SH64 targets cannot convert format in the linker
249 # using the -oformat command line switch.
250 setup_xfail "sh64*-*-*"
253 if {[istarget arm*-*-*] || \
254 [istarget strongarm*-*-*] || \
255 [istarget xscale*-*-*] || \
256 [istarget thumb-*-*] } {
258 # ARM targets call __gccmain
259 set flags "$flags --defsym __gccmain=0"
261 # ARM targets cannot convert format in the linker
262 # using the --oformat command line switch
263 setup_xfail "*arm*-*-*"
264 setup_xfail "xscale-*-*"
265 setup_xfail "thumb-*-*"
268 # PowerPC EABI code calls __eabi.
269 if [istarget powerpc*-*-eabi*] {
270 set flags "$flags --defsym __eabi=0"
273 # mn10200 code calls __truncsipsi2_d0_d2.
274 if {[istarget mn10200*-*-*]} then {
275 set flags "$flags --defsym __truncsipsi2_d0_d2=0"
278 # m6811/m6812 code has references to soft registers.
279 if {[istarget m6811-*-*] || [istarget m6812-*-*]} {
280 set flags "$flags --defsym _.frame=0 --defsym _.d1=0 --defsym _.d2=0"
281 set flags "$flags --defsym _.d3=0 --defsym _.d4=0"
282 set flags "$flags --defsym _.tmp=0 --defsym _.xy=0 --defsym _.z=0"
285 # V850 targets need libgcc.a
286 if [istarget v850*-*-elf] {
287 set objs "$objs -L ../gcc -lgcc"
290 # Xtensa ELF targets relax by default; S-Record linker does not
291 if [istarget xtensa*-*-*] {
292 set flags "$flags -no-relax"
295 # Some OpenBSD targets have ProPolice and reference __guard and
296 # __stack_smash_handler.
297 if [istarget *-*-openbsd*] {
298 set flags "$flags --defsym __guard=0"
299 set flags "$flags --defsym __stack_smash_handler=0"
302 if { ![ld_simple_link $ld tmpdir/sr1 "$flags $objs"] \
303 || ![ld_simple_link $ld tmpdir/sr2.sr "$flags --oformat srec $objs"] } {
308 send_log "$objcopy -O srec tmpdir/sr1 tmpdir/sr1.sr\n"
309 set exec_output [run_host_cmd "$objcopy" "-O srec tmpdir/sr1 tmpdir/sr1.sr"]
310 set exec_output [prune_warnings $exec_output]
311 if ![string match "" $exec_output] {
312 send_log "$exec_output\n"
313 verbose "$exec_output"
318 set f1 [open tmpdir/sr1.sr r]
319 set f2 [open tmpdir/sr2.sr r]
320 if [srec_compare $f1 $f2] {
329 set test1 "S-records"
330 set test2 "S-records with constructors"
332 # See whether the default linker script uses SIZEOF_HEADERS.
333 set exec_output [run_host_cmd "$ld" "--verbose"]
334 set sizeof_headers [string match "*SIZEOF_HEADERS*" $exec_output]
336 # First test linking a C program. We don't require
any libraries. We
337 # link it normally
, and objcopy to the S
-record format
, and
then link
338 # directly to the S
-record format
, and require that the two files
339 # contain the same data.
341 if { ![is_remote host
] && [which $CC
] == 0 } {
347 if { ![ld_compile $CC $srcdir
/$subdir
/sr1.c tmpdir
/sr1.o
] \
348 ||
![ld_compile $CC $srcdir
/$subdir
/sr2.c tmpdir
/sr2.o
] } {
354 # The i386
-aout target is confused
: the linker does not put the
355 # sections where objdump finds them. I don
't know which is wrong.
356 setup_xfail "i*86-*-aout*"
358 # These tests fail on the native MIPS ELF targets because the GP value
359 # in the .reginfo section is not updated when the S-record version is
360 # written out. The mips-elf target itself does not use a .reginfo section.
361 setup_xfail "mips*-*-irix5*" "mips*-*-irix6*" "mips*-*-linux*"
363 # The S-record linker doesn't
do the magic TOC handling that XCOFF
365 setup_xfail
"*-*-aix*" "*-*-xcoff*"
367 # The S
-record linker doesn
't build ARM/Thumb stubs.
368 setup_xfail "arm-*-coff"
369 setup_xfail "strongarm*-*-coff"
370 setup_xfail "xscale*-*-coff"
371 setup_xfail "arm-*-pe*"
372 # setup_xfail "arm-*elf*"
373 setup_xfail "thumb-*-coff*"
374 setup_xfail "thumb-*-pe*"
375 setup_xfail "thumb-*-elf*"
376 setup_xfail "arm*-*-linux*"
378 # The S-record linker doesn't
include the .
{zda
} sections.
379 setup_xfail
"v850*-*-elf"
381 # The S
-record linker doesn
't handle Alpha Elf relaxation.
382 setup_xfail "alpha*-*-elf*" "alpha*-*-linux-*" "alpha*-*-gnu*"
383 setup_xfail "alpha*-*-netbsd*"
385 # The S-record linker hasn't
any hope of coping with HPPA relocs.
386 # Or MeP complex relocs.
387 setup_xfail
"hppa*-*-*" "mep-*-*"
389 # The S
-record linker doesn
't handle IA64 Elf relaxation.
390 setup_xfail "ia64-*-*"
392 # The S-record linker doesn't support the special PE headers
- the PE
393 # emulation tries to write pe
-specific information to the PE headers
394 # in the output bfd
, but it
's not a PE bfd (it's an srec bfd
)
395 setup_xfail
"*-*-cygwin*" "*-*-mingw*" "*-*-pe*" "*-*-winnt*"
396 setup_xfail
"score-*-*"
398 run_srec_test $test1
"tmpdir/sr1.o tmpdir/sr2.o"
400 # Now try linking a C
++ program with global constructors and
401 # destructors. Note that since we are not linking against
any
402 # libraries
, this
program won
't actually work or anything.
404 if { ![is_remote host] && [which $CXX] == 0 } {
409 if ![ld_compile "$CXX $CXXFLAGS -fno-exceptions" $srcdir/$subdir/sr3.cc tmpdir/sr3.o] {
415 setup_xfail "i*86-*-aout*"
416 setup_xfail "mips*-*-irix5*" "mips*-*-irix6*" "mips*-*-linux*"
417 setup_xfail "*-*-aix*" "*-*-xcoff*"
418 setup_xfail "arm*-*-*"
419 setup_xfail "strongarm*-*-*"
420 setup_xfail "thumb-*-*"
421 setup_xfail "v850*-*-elf"
422 setup_xfail "alpha*-*-elf*" "alpha*-*-linux-*" "alpha*-*-gnu*"
423 setup_xfail "alpha*-*-netbsd*"
424 setup_xfail "hppa*-*-*" "mep-*-*"
425 setup_xfail "ia64-*-*"
426 setup_xfail "*-*-cygwin*" "*-*-mingw*" "*-*-pe*" "*-*-winnt*"
427 setup_xfail "score-*-*"
429 run_srec_test $test2 "tmpdir/sr3.o"