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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [gdb/] [testsuite/] [gdb.asm/] [asm-source.exp] - Blame information for rev 321

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1 24 jeremybenn
# Copyright 1998, 2000, 2001, 2002, 2003, 2004, 2007, 2008
2
# Free Software Foundation, Inc.
3
#
4
# This program is free software; you can redistribute it and/or modify
5
# it under the terms of the GNU General Public License as published by
6
# the Free Software Foundation; either version 3 of the License, or
7
# (at your option) any later version.
8
#
9
# This program is distributed in the hope that it will be useful,
10
# but WITHOUT ANY WARRANTY; without even the implied warranty of
11
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12
# GNU General Public License for more details.
13
#
14
# You should have received a copy of the GNU General Public License
15
# along with this program.  If not, see .
16
#
17
# Please email any bugs, comments, and/or additions to this file to:
18
# bug-gdb@prep.ai.mit.edu
19
#
20
# This file was written by Kendra.
21
 
22
if $tracelevel then {
23
    strace $tracelevel
24
}
25
 
26
#
27
# Test debugging assembly level programs.
28
# This file uses asmsrc[12].s for input.
29
#
30
 
31
set prms_id 0
32
set bug_id 0
33
 
34
set asm-arch ""
35
set asm-note "empty"
36
set asm-flags ""
37
set link-flags "-e _start"
38
set debug-flags ""
39
 
40
switch -glob -- [istarget] {
41
    "alpha*-*-*" {
42
        set asm-arch alpha
43
        # ??? Won't work with ecoff systems like Tru64, but then we also
44
        # don't have any other -g flag that creates mdebug output.
45
        set asm-flags "-no-mdebug -I${srcdir}/${subdir} -I${objdir}/${subdir}"
46
        set debug-flags "-gdwarf-2"
47
    }
48
    "*arm-*-*" {
49
        set asm-arch arm
50
    }
51
    "xscale-*-*" {
52
        set asm-arch arm
53
    }
54
    "frv-*-*" {
55
        set asm-arch frv
56
    }
57
    "s390-*-*" {
58
        set asm-arch s390
59
    }
60
    "s390x-*-*" {
61
        set asm-arch s390x
62
    }
63
    "x86_64-*-*" {
64
        set asm-arch x86_64
65
        set debug-flags "-gdwarf-2"
66
    }
67
    "i\[3456\]86-*-*" {
68
        set asm-arch i386
69
    }
70
    "m32r*-linux*" {
71
        set asm-arch m32r-linux
72
    }
73
    "m32c-*-*" {
74
        set asm-arch m32c
75
    }
76
    "m32r*-*" {
77
        set asm-arch m32r
78
        append link-flags "--whole-archive -lgloss --no-whole-archive"
79
    }
80
    "m6811-*-*" {
81
        set asm-arch m68hc11
82
        set asm-flags "-mshort-double -m68hc11 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
83
        set debug-flags "-gdwarf-2"
84
        # This asm test is specific and uses the linker directly.
85
        # We must not use the target board linker script defined for other
86
        # tests.  Remove it and restore it later on.
87
        set board [target_info name]
88
        set old_ldscript [board_info $board ldscript]
89
        unset_board_info "ldscript"
90
    }
91
    "m6812-*-*" {
92
        set asm-arch m68hc11
93
        set asm-flags "-mshort-double -m68hc12 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
94
        set debug-flags "-gdwarf-2"
95
        # This asm test is specific and uses the linker directly.
96
        # We must not use the target board linker script defined for other
97
        # tests.  Remove it and restore it later on.
98
        set board [target_info name]
99
        set old_ldscript [board_info $board ldscript]
100
        set_board_info ldscript ""
101
    }
102
    "mips*-*" {
103
        set asm-arch mips
104
    }
105
    "powerpc*-*" {
106
        set asm-arch powerpc
107
    }
108
    "sh*-*-*" {
109
        set asm-arch sh
110
        set debug-flags "-gdwarf-2"
111
    }
112
    "sparc-*-*" {
113
        set asm-arch sparc
114
    }
115
    "sparc64-*-*" {
116
        set asm-arch sparc64
117
        set asm-flags "-xarch=v9 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
118
        set debug-flags "-gdwarf-2"
119
    }
120
    "spu*-*-*" {
121
       set asm-arch spu
122
       set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir} --no-warn"
123
       set debug-flags "-gdwarf-2"
124
    }
125
    "xstormy16-*-*" {
126
        set asm-arch xstormy16
127
        set debug-flags "-gdwarf-2"
128
    }
129
    "v850-*-*" {
130
        set asm-arch v850
131
        set gdb_wrapper_initialized 1
132
    }
133
    "m68k-*-*" {
134
        set asm-arch m68k
135
    }
136
    "ia64-*-*" {
137
        set asm-arch ia64
138
        set debug-flags "-gdwarf-2"
139
    }
140
    "iq2000-*-*" {
141
        set asm-arch iq2000
142
    }
143
    "hppa*-linux-*" {
144
        set asm-arch pa
145
        set debug-flags "-gdwarf-2"
146
    }
147
    "hppa-*-openbsd*" {
148
        set asm-arch pa
149
        set debug-flags "-gdwarf-2"
150
    }
151
    "hppa64-*-hpux*" {
152
        set asm-arch pa64
153
        set debug-flags "-gdwarf-2"
154
    }
155
    "h83*-*" {
156
        set asm-arch h8300
157
        set debug-flags "-gdwarf-2"
158
    }
159
}
160
 
161
if { "${asm-arch}" == "" } {
162
    untested asm-source.exp
163
    return -1
164
}
165
 
166
# On NetBSD/ELF we need a special NetBSD-identifying note section.
167
if { [istarget "*-*-netbsdelf*"]
168
     || [istarget "alpha-*-netbsd*"]
169
     || [istarget "mips*-*-netbsd*"]
170
     || [istarget "powerpc-*-netbsd*"]
171
     || [istarget "x86_64-*-netbsd*"] } then {
172
    set asm-note "netbsd"
173
}
174
 
175
# On OpenBSD/ELF we need a similar note section.  We make no attempt
176
# of handing a.out here since most OpenBSD/a.out systems use a rather
177
# outdated assembler that doesn't assemble this test's code anyway.
178
if { [istarget "*-*-openbsd*"] } then {
179
    set asm-note "openbsd"
180
}
181
 
182
# Watch out, we are invoking the assembler, but the testsuite sets multilib
183
# switches according to compiler syntax.  If we pass these options straight
184
# to the assembler, they won't always make sense.  If we don't pass them to
185
# the assembler, the final link will complain that the object files were
186
# built with different defaults.  So no matter what we do, we lose.  We may as
187
# well get out of this test sooner rather than later.
188
set dest [target_info name]
189
if [board_info $dest exists multilib_flags] {
190
        set multilib_flags [board_info $dest multilib_flags]
191
        if { "${multilib_flags}" != "" } {
192
           untested asm-source.exp
193
           return -1
194
           return;
195
         }
196
}
197
 
198
set testfile "asm-source"
199
set binfile ${objdir}/${subdir}/${testfile}
200
set srcfile1 asmsrc1.s
201
set srcfile2 asmsrc2.s
202
 
203
remote_exec build "rm -f ${subdir}/arch.inc"
204
remote_download host ${srcdir}/${subdir}/${asm-arch}.inc ${subdir}/arch.inc
205
remote_exec build "rm -f ${subdir}/note.inc"
206
remote_download host ${srcdir}/${subdir}/${asm-note}.inc ${subdir}/note.inc
207
 
208
if { [string equal ${asm-flags} ""] } {
209
    set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
210
}
211
 
212
if { [string equal ${debug-flags} ""] } {
213
    set debug-flags "-gstabs"
214
}
215
 
216
# Allow the target board to override the debug flags.
217
if { [board_info $dest exists debug_flags] } then {
218
    set debug-flags "[board_info $dest debug_flags]"
219
}
220
 
221
# The debug flags are in the format that gcc expects:
222
# "-gdwarf-2", "-gstabs+", or "-gstabs".  To be compatible with the
223
# other languages in the test suite, we accept this input format.
224
# So the user can run the test suite with:
225
#
226
#   runtest --target_board unix/gdb:debug_flags=-gdwarf-2
227
#   make check RUNTESTFLAGS="--target_board unix/gdb:debug_flags=-gdwarf-2"
228
#
229
# However, the GNU assembler has different spellings than gcc.
230
# So I adjust the debug flags here.
231
 
232
# The GNU assembler spells "dwarf-2" as "dwarf2".
233
regsub "--" "-gdwarf-2" "${debug-flags}" "-gdwarf2" debug-flags
234
 
235
# The GNU assembler before 2.15 did not support "stabs+".
236
regsub "--" "-gstabs\[+\]" "${debug-flags}" "-gstabs" debug-flags
237
 
238
# The GNU assembler does not support level options like "-g2" or "-g3".
239
regsub "--" "-g\[0-9\]" "${debug-flags}" "" debug-flags
240
 
241
if {[target_assemble ${srcdir}/${subdir}/${srcfile1} asmsrc1.o "${asm-flags} ${debug-flags}"] != ""} then {
242
     untested asm-source.exp
243
     return -1
244
}
245
if {[target_assemble ${srcdir}/${subdir}/${srcfile2} asmsrc2.o "${asm-flags} ${debug-flags}"] != ""} then {
246
     untested asm-source.exp
247
     return -1
248
}
249
 
250
# We deliberately don't use gdb_compile here to link together the
251
# assembled object files.  Using gdb_compile, and therefore the C
252
# compiler, is conceptually wrong, since we're testing raw assembler
253
# code here that provides its own startup code.  Using target_link
254
# also avoids a lot of problems on many systems, most notably on
255
# *-*-*bsd* and *-*-solaris2*.
256
if {[target_link "asmsrc1.o asmsrc2.o" "${binfile}" ${link-flags}] != "" } then {
257
     untested asm-source.exp
258
     return -1
259
}
260
 
261
# Restore the target board linker script for HC11/HC12.
262
if { [istarget "m6811-*-*"] || [istarget "m6812-*-*"] } {
263
    set_board_info ldscript $old_ldscript
264
}
265
 
266
remote_exec build "mv asmsrc1.o asmsrc2.o ${objdir}/${subdir}"
267
 
268
# Collect some line numbers.
269
set line_main       [expr [gdb_get_line_number "main start" "asmsrc1.s"] + 1]
270
set line_call_foo2  [expr [gdb_get_line_number "call foo2"  "asmsrc1.s"] + 1]
271
set line_search_comment [expr [gdb_get_line_number "search" "asmsrc1.s"] + 1]
272
set line_foo3       [expr [gdb_get_line_number "foo3 start" "asmsrc1.s"] + 1]
273
set line_main_exit  [expr [gdb_get_line_number "main exit"  "asmsrc1.s"] + 1]
274
set line_foo2       [expr [gdb_get_line_number "foo2 start" "asmsrc2.s"] + 1]
275
set line_call_foo3  [expr [gdb_get_line_number "call foo3"  "asmsrc2.s"] + 1]
276
set line_call_foo3_again [expr $line_call_foo3 + 1]
277
set line_foo2_leave [expr [gdb_get_line_number "foo2 leave" "asmsrc2.s"] + 1]
278
 
279
gdb_start
280
gdb_reinitialize_dir $srcdir/$subdir
281
gdb_load ${binfile}
282
 
283
#
284
# Run to `main' where we begin our tests.
285
#
286
 
287
if ![runto_main] then {
288
    gdb_suppress_tests
289
}
290
 
291
# Execute the `f' command and see if the result includes source info.
292
gdb_test "f" "asmsrc1\[.\]s:$line_main.*several_nops" "f at main"
293
 
294
# See if we properly `next' over a macro with several insns.
295
gdb_test "n" "$line_call_foo2\[         \]*.*foo2" "next over macro"
296
 
297
# See if we can properly `step' into a subroutine call.
298
gdb_test "s" "$line_foo2\[      \]*.*" "step into foo2"
299
 
300
# Test 'info target', and incidentally capture the entry point address.
301
set entry_point 0
302
send_gdb "info target\n"
303
gdb_expect {
304
    -re "Symbols from .*asm-source.*Entry point: 0x(\[01232456789abcdefABCDEF\]+).*$gdb_prompt $" {
305
        set entry_point $expect_out(1,string)
306
        pass "info target"
307
    }
308
    -re ".*$gdb_prompt $" {
309
        fail "info target"
310
    }
311
    timeout {
312
        fail "info target (timeout)"
313
    }
314
}
315
 
316
# Capture the start symbol (may be '_start' or 'start')
317
set entry_symbol ""
318
send_gdb "info symbol 0x$entry_point\n"
319
gdb_expect {
320
    -re "info symbol 0x$entry_point\[\r\n\]+(\[^\r\n\]*) in section .*$gdb_prompt $" {
321
        # We match the echoed `info symbol' command here, to help us
322
        # reliably identify the beginning of the start symbol in the
323
        # command's output.  You might think we could just use '^' to
324
        # start matching at the beginning of the line, but
325
        # unfortunately, in Expect, '^' matches the beginning of the
326
        # input that hasn't been matched by any expect clause yet.  If
327
        # every expect clause consumes a complete line, along with its
328
        # terminating CR/LF, this is equivalent to the beginning of a
329
        # line.  But expect clauses that end with `.*' will consume as
330
        # much as happened to arrive from the TTY --- exactly where
331
        # they leave you depends on inter-process timing.  :(
332
        set entry_symbol $expect_out(1,string)
333
        pass "info symbol"
334
    }
335
    -re ".*$gdb_prompt $" {
336
        fail "info symbol"
337
    }
338
    timeout {
339
        fail "info symbol (timeout)"
340
    }
341
}
342
 
343
# Now try a 'list' from the other source file.
344
gdb_test "list $entry_symbol" ".*gdbasm_startup.*" "list"
345
 
346
# Now try a source file search
347
gdb_test "search A routine for foo2 to call" \
348
        "$line_search_comment\[ \t\]+comment \"A routine for foo2 to call.\"" "search"
349
 
350
# See if `f' prints the right source file.
351
gdb_test "f" ".*asmsrc2\[.\]s:$line_foo2.*" "f in foo2"
352
 
353
# `next' one insn (or macro) to set up our stackframe (for the following bt).
354
gdb_test "n" "$line_call_foo3\[         \]*.*foo3" "n in foo2"
355
 
356
# See if a simple `bt' prints the right source files and
357
# doesn't fall off the stack.
358
 
359
gdb_test "bt 10" \
360
        "\#0.*foo2.*asmsrc2\[.\]s:$line_call_foo3.*\#1.*main.*asmsrc1\[.\]s:$line_call_foo2" \
361
        "bt ALL in foo2"
362
 
363
# See if a capped `bt' prints the right source files.
364
gdb_test "bt 2" "\#0.*foo2.*asmsrc2\[.\]s:$line_call_foo3.*\#1.*main.*asmsrc1\[.\]s:$line_call_foo2.*" "bt 2 in foo2"
365
 
366
# Step into another subroutine which lives back in the first source file.
367
gdb_test "s" "" "s 2"
368
 
369
# Next over insns to set up the stack frame.
370
gdb_test "n" "" "n 2"
371
 
372
# Now see if a capped `bt' is correct.
373
gdb_test "bt 3" "\#0.*foo3.*asmsrc1\[.\]s:$line_foo3.*\#1.*foo2.*asmsrc2\[.\]s:$line_call_foo3.*\#2.*main.*asmsrc1\[.\]s:$line_call_foo2.*" "bt 3 in foo3"
374
 
375
# Try 'info source' from asmsrc1.s
376
gdb_test "info source" \
377
        "Current source file is .*asmsrc1.s.*Source language is asm.*" \
378
        "info source asmsrc1.s"
379
 
380
# Try 'finishing' from foo3
381
gdb_test "finish" "Run till exit from.*\[\r\n\]$line_call_foo3_again\[ \t\]+gdbasm_call foo3" \
382
        "finish from foo3"
383
 
384
# Try 'info source' from asmsrc2.s
385
gdb_test "info source" \
386
        "Current source file is .*asmsrc2.s.*Source language is asm.*" \
387
        "info source asmsrc2.s"
388
 
389
# Try 'info sources'.  This can produce a lot of output on systems
390
# with dynamic linking, where the system's shared libc was compiled
391
# with debugging info; for example, on Linux, this produces 47kb of
392
# output.  So we consume it as we go.
393
send_gdb "info sources\n"
394
set seen_asmsrc_1 0
395
set seen_asmsrc_2 0
396
gdb_expect {
397
    -re "^\[^,\]*asmsrc1.s(, |\[\r\n\]+)" {
398
        set seen_asmsrc_1 1
399
        exp_continue
400
    }
401
    -re "^\[^,\]*asmsrc2.s(, |\[\r\n\]+)" {
402
        set seen_asmsrc_2 1
403
        exp_continue
404
    }
405
    -re ", " {
406
        exp_continue
407
    }
408
    -re "$gdb_prompt $" {
409
        if {$seen_asmsrc_1 && $seen_asmsrc_2} {
410
            pass "info sources"
411
        } else {
412
            fail "info sources"
413
        }
414
    }
415
    timeout {
416
            fail "info sources (timeout)"
417
    }
418
}
419
 
420
 
421
# Try 'info line'
422
gdb_test "info line" \
423
        "Line $line_call_foo3_again of.*asmsrc2.s.*starts at.* and ends at.*." \
424
        "info line"
425
 
426
# Try 'nexting' over next call to foo3
427
gdb_test "next" "$line_foo2_leave\[ \t\]+gdbasm_leave" "next over foo3"
428
 
429
# Try 'return' from foo2
430
gdb_test "return" "\#0  main .*$line_main_exit\[ \t\]+gdbasm_exit0" "return from foo2" \
431
        "Make (foo2|selected stack frame) return now\?.*" "y"
432
 
433
# Disassemble something, check the output
434
proc test_dis { command var } {
435
    global gdb_prompt
436
    send_gdb "${command}\n"
437
    gdb_expect {
438
        -re "${var}.*:.*(Cannot access|Bad address)" {
439
            # The "disassembler" was only accessing the local
440
            # executable and that would cause attempts to disassemble
441
            # variables to fail (memory not valid).
442
            fail "${command} (memory read error)"
443
        }
444
        -re "${var}.*:.*${gdb_prompt}" {
445
            pass "${command}"
446
        }
447
        timeout {
448
            fail "${command} (timeout)"
449
        }
450
    }
451
}
452
 
453
# See if we can look at a global variable, three ways
454
gdb_test "print globalvar" ".* = 11" "look at global variable"
455
test_dis "x/i &globalvar" "globalvar"
456
test_dis "disassem &globalvar &globalvar+1" "globalvar"
457
 
458
# See if we can look at a static variable, three ways
459
gdb_test "print staticvar" ".* = 5" "look at static variable"
460
test_dis "x/i &staticvar" "staticvar"
461
test_dis "disassem &staticvar &staticvar+1" "staticvar"
462
 
463
# See if we can look at a static function
464
gdb_test "disassem foostatic" ".*:.*End of assembler dump." \
465
        "look at static function"
466
 
467
remote_exec build "rm -f ${subdir}/arch.inc"
468
remote_exec build "rm -f ${subdir}/note.inc"

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