gdb/testsuite/gdb.asm/asm-source.exp

   1 # Copyright 1998, 2000, 2001, 2002, 2003, 2004, 2007
   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 2 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, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17 #
  18 # Please email any bugs, comments, and/or additions to this file to:
  19 # bug-gdb@prep.ai.mit.edu
  20 #
  21 # This file was written by Kendra.
  22
  23 if $tracelevel then {
  24     strace $tracelevel
  25 }
  26
  27 #
  28 # Test debugging assembly level programs.
  29 # This file uses asmsrc[12].s for input.
  30 #
  31
  32 set prms_id 0
  33 set bug_id 0
  34
  35 set asm-arch ""
  36 set asm-note "empty"
  37 set asm-flags ""
  38 set link-flags "-e _start"
  39 set debug-flags ""
  40
  41 switch -glob -- [istarget] {
  42     "alpha*-*-*" {
  43         set asm-arch alpha
  44         # ??? Won't work with ecoff systems like Tru64, but then we also
  45         # don't have any other -g flag that creates mdebug output.
  46         set asm-flags "-no-mdebug -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  47         set debug-flags "-gdwarf-2"
  48     }
  49     "*arm-*-*" {
  50         set asm-arch arm
  51     }
  52     "xscale-*-*" {
  53         set asm-arch arm
  54     }
  55     "d10v-*-*" {
  56         set asm-arch d10v
  57     }
  58     "frv-*-*" {
  59         set asm-arch frv
  60     }
  61     "s390-*-*" {
  62         set asm-arch s390
  63     }
  64     "s390x-*-*" {
  65         set asm-arch s390x
  66     }
  67     "x86_64-*-*" {
  68         set asm-arch x86_64
  69         set debug-flags "-gdwarf-2"
  70     }
  71     "i\[3456\]86-*-*" {
  72         set asm-arch i386
  73     }
  74     "m32r*-linux*" {
  75         set asm-arch m32r-linux
  76     }
  77     "m32c-*-*" {
  78         set asm-arch m32c
  79     }
  80     "m32r*-*" {
  81         set asm-arch m32r
  82         append link-flags "--whole-archive -lgloss --no-whole-archive"
  83     }
  84     "m6811-*-*" {
  85         set asm-arch m68hc11
  86         set asm-flags "-mshort-double -m68hc11 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  87         set debug-flags "-gdwarf-2"
  88         # This asm test is specific and uses the linker directly.
  89         # We must not use the target board linker script defined for other
  90         # tests.  Remove it and restore it later on.
  91         set board [target_info name]
  92         set old_ldscript [board_info $board ldscript]
  93         unset_board_info "ldscript"
  94     }
  95     "m6812-*-*" {
  96         set asm-arch m68hc11
  97         set asm-flags "-mshort-double -m68hc12 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  98         set debug-flags "-gdwarf-2"
  99         # This asm test is specific and uses the linker directly.
 100         # We must not use the target board linker script defined for other
 101         # tests.  Remove it and restore it later on.
 102         set board [target_info name]
 103         set old_ldscript [board_info $board ldscript]
 104         set_board_info ldscript ""
 105     }
 106     "mips*-*" {
 107         set asm-arch mips
 108     }
 109     "powerpc*-*" {
 110         set asm-arch powerpc
 111     }
 112     "sh*-*-*" {
 113         set asm-arch sh
 114         set debug-flags "-gdwarf-2"
 115     }
 116     "sparc-*-*" {
 117         set asm-arch sparc
 118     }
 119     "sparc64-*-*" {
 120         set asm-arch sparc64
 121         set asm-flags "-xarch=v9 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
 122         set debug-flags "-gdwarf-2"
 123     }
 124     "spu*-*-*" {
 125        set asm-arch spu
 126        set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir} --no-warn"
 127        set debug-flags "-gdwarf-2"
 128     }
 129     "xstormy16-*-*" {
 130         set asm-arch xstormy16
 131         set debug-flags "-gdwarf-2"
 132     }
 133     "v850-*-*" {
 134         set asm-arch v850
 135         set gdb_wrapper_initialized 1
 136     }
 137     "m68k-*-*" {
 138         set asm-arch m68k
 139     }
 140     "ia64-*-*" {
 141         set asm-arch ia64
 142         set debug-flags "-gdwarf-2"
 143     }
 144     "iq2000-*-*" {
 145         set asm-arch iq2000
 146     }
 147     "hppa*-linux-*" {
 148         set asm-arch pa
 149         set debug-flags "-gdwarf-2"
 150     }
 151     "hppa-*-openbsd*" {
 152         set asm-arch pa
 153         set debug-flags "-gdwarf-2"
 154     }
 155     "hppa64-*-hpux*" {
 156         set asm-arch pa64
 157         set debug-flags "-gdwarf-2"
 158     }
 159     "h83*-*" {
 160         set asm-arch h8300
 161         set debug-flags "-gdwarf-2"
 162     }
 163 }
 164
 165 if { "${asm-arch}" == "" } {
 166     untested asm-source.exp
 167     return -1
 168 }
 169
 170 # On NetBSD/ELF we need a special NetBSD-identifying note section.
 171 if { [istarget "*-*-netbsdelf*"]
 172      || [istarget "alpha-*-netbsd*"]
 173      || [istarget "mips*-*-netbsd*"]
 174      || [istarget "powerpc-*-netbsd*"]
 175      || [istarget "x86_64-*-netbsd*"] } then {
 176     set asm-note "netbsd"
 177 }
 178
 179 # On OpenBSD/ELF we need a similar note section.  We make no attempt
 180 # of handing a.out here since most OpenBSD/a.out systems use a rather
 181 # outdated assembler that doesn't assemble this test's code anyway.
 182 if { [istarget "*-*-openbsd*"] } then {
 183     set asm-note "openbsd"
 184 }
 185
 186 # Watch out, we are invoking the assembler, but the testsuite sets multilib
 187 # switches according to compiler syntax.  If we pass these options straight
 188 # to the assembler, they won't always make sense.  If we don't pass them to
 189 # the assembler, the final link will complain that the object files were
 190 # built with different defaults.  So no matter what we do, we lose.  We may as
 191 # well get out of this test sooner rather than later.
 192 set dest [target_info name]
 193 if [board_info $dest exists multilib_flags] {
 194         set multilib_flags [board_info $dest multilib_flags]
 195         if { "${multilib_flags}" != "" } {
 196            untested asm-source.exp
 197            return -1
 198            return;
 199          }
 200 }
 201
 202 set testfile "asm-source"
 203 set binfile ${objdir}/${subdir}/${testfile}
 204 set srcfile1 asmsrc1.s
 205 set srcfile2 asmsrc2.s
 206
 207 remote_exec build "rm -f ${subdir}/arch.inc"
 208 remote_download host ${srcdir}/${subdir}/${asm-arch}.inc ${subdir}/arch.inc
 209 remote_exec build "rm -f ${subdir}/note.inc"
 210 remote_download host ${srcdir}/${subdir}/${asm-note}.inc ${subdir}/note.inc
 211
 212 if { [string equal ${asm-flags} ""] } {
 213     set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
 214 }
 215
 216 if { [string equal ${debug-flags} ""] } {
 217     set debug-flags "-gstabs"
 218 }
 219
 220 # Allow the target board to override the debug flags.
 221 if { [board_info $dest exists debug_flags] } then {
 222     set debug-flags "[board_info $dest debug_flags]"
 223 }
 224
 225 # The debug flags are in the format that gcc expects:
 226 # "-gdwarf-2", "-gstabs+", or "-gstabs".  To be compatible with the
 227 # other languages in the test suite, we accept this input format.
 228 # So the user can run the test suite with:
 229 #
 230 #   runtest --target_board unix/gdb:debug_flags=-gdwarf-2
 231 #   make check RUNTESTFLAGS="--target_board unix/gdb:debug_flags=-gdwarf-2"
 232 #
 233 # However, the GNU assembler has different spellings than gcc.
 234 # So I adjust the debug flags here.
 235
 236 # The GNU assembler spells "dwarf-2" as "dwarf2".
 237 regsub "--" "-gdwarf-2" "${debug-flags}" "-gdwarf2" debug-flags
 238
 239 # The GNU assembler before 2.15 did not support "stabs+".
 240 regsub "--" "-gstabs\[+\]" "${debug-flags}" "-gstabs" debug-flags
 241
 242 # The GNU assembler does not support level options like "-g2" or "-g3".
 243 regsub "--" "-g\[0-9\]" "${debug-flags}" "" debug-flags
 244
 245 if {[target_assemble ${srcdir}/${subdir}/${srcfile1} asmsrc1.o "${asm-flags} ${debug-flags}"] != ""} then {
 246      untested asm-source.exp
 247      return -1
 248 }
 249 if {[target_assemble ${srcdir}/${subdir}/${srcfile2} asmsrc2.o "${asm-flags} ${debug-flags}"] != ""} then {
 250      untested asm-source.exp
 251      return -1
 252 }
 253
 254 # We deliberately don't use gdb_compile here to link together the
 255 # assembled object files.  Using gdb_compile, and therefore the C
 256 # compiler, is conceptually wrong, since we're testing raw assembler
 257 # code here that provides its own startup code.  Using target_link
 258 # also avoids a lot of problems on many systems, most notably on
 259 # *-*-*bsd* and *-*-solaris2*.
 260 if {[target_link "asmsrc1.o asmsrc2.o" "${binfile}" ${link-flags}] != "" } then {
 261      untested asm-source.exp
 262      return -1
 263 }
 264
 265 # Restore the target board linker script for HC11/HC12.
 266 if { [istarget "m6811-*-*"] || [istarget "m6812-*-*"] } {
 267     set_board_info ldscript $old_ldscript
 268 }
 269
 270 remote_exec build "mv asmsrc1.o asmsrc2.o ${objdir}/${subdir}"
 271
 272
 273 gdb_start
 274 gdb_reinitialize_dir $srcdir/$subdir
 275 gdb_load ${binfile}
 276
 277 #
 278 # Run to `main' where we begin our tests.
 279 #
 280
 281 if ![runto_main] then {
 282     gdb_suppress_tests
 283 }
 284
 285 # Execute the `f' command and see if the result includes source info.
 286 gdb_test "f" "asmsrc1\[.\]s:29.*several_nops" "f at main"
 287
 288 # See if we properly `next' over a macro with several insns.
 289 gdb_test "n" "33\[      \]*.*foo2" "next over macro"
 290
 291 # See if we can properly `step' into a subroutine call.
 292 gdb_test "s" "8\[       \]*.*" "step into foo2"
 293
 294 # Test 'info target', and incidentally capture the entry point address.
 295 set entry_point 0
 296 send_gdb "info target\n"
 297 gdb_expect {
 298     -re "Symbols from .*asm-source.*Entry point: 0x(\[01232456789abcdefABCDEF\]+).*$gdb_prompt $" {
 299         set entry_point $expect_out(1,string)
 300         pass "info target"
 301     }
 302     -re ".*$gdb_prompt $" {
 303         fail "info target"
 304     }
 305     timeout {
 306         fail "info target (timeout)"
 307     }
 308 }
 309
 310 # Capture the start symbol (may be '_start' or 'start')
 311 set entry_symbol ""
 312 send_gdb "info symbol 0x$entry_point\n"
 313 gdb_expect {
 314     -re "info symbol 0x$entry_point\[\r\n\]+(\[^\r\n\]*) in section .*$gdb_prompt $" {
 315         # We match the echoed `info symbol' command here, to help us
 316         # reliably identify the beginning of the start symbol in the
 317         # command's output.  You might think we could just use '^' to
 318         # start matching at the beginning of the line, but
 319         # unfortunately, in Expect, '^' matches the beginning of the
 320         # input that hasn't been matched by any expect clause yet.  If
 321         # every expect clause consumes a complete line, along with its
 322         # terminating CR/LF, this is equivalent to the beginning of a
 323         # line.  But expect clauses that end with `.*' will consume as
 324         # much as happened to arrive from the TTY --- exactly where
 325         # they leave you depends on inter-process timing.  :(
 326         set entry_symbol $expect_out(1,string)
 327         pass "info symbol"
 328     }
 329     -re ".*$gdb_prompt $" {
 330         fail "info symbol"
 331     }
 332     timeout {
 333         fail "info symbol (timeout)"
 334     }
 335 }
 336
 337 # Now try a 'list' from the other source file.
 338 gdb_test "list $entry_symbol" ".*gdbasm_startup.*" "list"
 339
 340 # Now try a source file search
 341 gdb_test "search A routine for foo2 to call" \
 342         "40\[ \t\]+comment \"A routine for foo2 to call.\"" "search"
 343
 344 # See if `f' prints the right source file.
 345 gdb_test "f" ".*asmsrc2\[.\]s:8.*" "f in foo2"
 346
 347 # `next' one insn (or macro) to set up our stackframe (for the following bt).
 348 gdb_test "n" "12\[      \]*.*foo3" "n in foo2"
 349
 350 # See if a simple `bt' prints the right source files and
 351 # doesn't fall off the stack.
 352
 353 gdb_test "bt 10" \
 354         "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33" \
 355         "bt ALL in foo2"
 356
 357 # See if a capped `bt' prints the right source files.
 358 gdb_test "bt 2" "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33.*" "bt 2 in foo2"
 359
 360 # Step into another subroutine which lives back in the first source file.
 361 gdb_test "s" "" "s 2"
 362
 363 # Next over insns to set up the stack frame.
 364 gdb_test "n" "" "n 2"
 365
 366 # Now see if a capped `bt' is correct.
 367 gdb_test "bt 3" "\#0.*foo3.*asmsrc1\[.\]s:45.*\#1.*foo2.*asmsrc2\[.\]s:12.*\#2.*main.*asmsrc1\[.\]s:33.*" "bt 3 in foo3"
 368
 369 # Try 'info source' from asmsrc1.s
 370 gdb_test "info source" \
 371         "Current source file is .*asmsrc1.s.*Source language is asm.*" \
 372         "info source asmsrc1.s"
 373
 374 # Try 'finishing' from foo3
 375 gdb_test "finish" "Run till exit from.*\[\r\n\]13\[ \t\]+gdbasm_call foo3" \
 376         "finish from foo3"
 377
 378 # Try 'info source' from asmsrc2.s
 379 gdb_test "info source" \
 380         "Current source file is .*asmsrc2.s.*Source language is asm.*" \
 381         "info source asmsrc2.s"
 382
 383 # Try 'info sources'.  This can produce a lot of output on systems
 384 # with dynamic linking, where the system's shared libc was compiled
 385 # with debugging info; for example, on Linux, this produces 47kb of
 386 # output.  So we consume it as we go.
 387 send_gdb "info sources\n"
 388 set seen_asmsrc_1 0
 389 set seen_asmsrc_2 0
 390 gdb_expect {
 391     -re "^\[^,\]*asmsrc1.s(, |\[\r\n\]+)" {
 392         set seen_asmsrc_1 1
 393         exp_continue
 394     }
 395     -re "^\[^,\]*asmsrc2.s(, |\[\r\n\]+)" {
 396         set seen_asmsrc_2 1
 397         exp_continue
 398     }
 399     -re ", " {
 400         exp_continue
 401     }
 402     -re "$gdb_prompt $" {
 403         if {$seen_asmsrc_1 && $seen_asmsrc_2} {
 404             pass "info sources"
 405         } else {
 406             fail "info sources"
 407         }
 408     }
 409     timeout {
 410             fail "info sources (timeout)"
 411     }
 412 }
 413
 414
 415 # Try 'info line'
 416 gdb_test "info line" \
 417         "Line 13 of.*asmsrc2.s.*starts at.*<foo2+.*> and ends at.*<foo2+.*>." \
 418         "info line"
 419
 420 # Try 'nexting' over next call to foo3
 421 gdb_test "next" "17\[ \t\]+gdbasm_leave" "next over foo3"
 422
 423 # Try 'return' from foo2
 424 gdb_test "return" "\#0  main .*37\[ \t\]+gdbasm_exit0" "return from foo2" \
 425         "Make (foo2|selected stack frame) return now\?.*" "y"
 426
 427 # Disassemble something, check the output
 428 proc test_dis { command var } {
 429     global gdb_prompt
 430     send_gdb "${command}\n"
 431     gdb_expect {
 432         -re "${var}.*:.*(Cannot access|Bad address)" {
 433             # The "disassembler" was only accessing the local
 434             # executable and that would cause attempts to disassemble
 435             # variables to fail (memory not valid).
 436             fail "${command} (memory read error)"
 437         }
 438         -re "${var}.*:.*${gdb_prompt}" {
 439             pass "${command}"
 440         }
 441         timeout {
 442             fail "${command} (timeout)"
 443         }
 444     }
 445 }
 446
 447 # See if we can look at a global variable, three ways
 448 gdb_test "print globalvar" ".* = 11" "look at global variable"
 449 test_dis "x/i &globalvar" "globalvar"
 450 test_dis "disassem &globalvar &globalvar+1" "globalvar"
 451
 452 # See if we can look at a static variable, three ways
 453 gdb_test "print staticvar" ".* = 5" "look at static variable"
 454 test_dis "x/i &staticvar" "staticvar"
 455 test_dis "disassem &staticvar &staticvar+1" "staticvar"
 456
 457 # See if we can look at a static function
 458 gdb_test "disassem foostatic" ".*<foostatic\\+0>:.*End of assembler dump." \
 459         "look at static function"
 460
 461 remote_exec build "rm -f ${subdir}/arch.inc"
 462 remote_exec build "rm -f ${subdir}/note.inc"