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

   1 # Copyright 1998, 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2009
   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 <http://www.gnu.org/licenses/>.
  16 #
  17 # This file was written by Kendra.
  18
  19 if $tracelevel then {
  20     strace $tracelevel
  21 }
  22
  23 #
  24 # Test debugging assembly level programs.
  25 # This file uses asmsrc[12].s for input.
  26 #
  27
  28 set prms_id 0
  29 set bug_id 0
  30
  31 set asm-arch ""
  32 set asm-note "empty"
  33 set asm-flags ""
  34 set link-flags "-e _start"
  35 set debug-flags ""
  36
  37 switch -glob -- [istarget] {
  38     "alpha*-*-*" {
  39         set asm-arch alpha
  40         # ??? Won't work with ecoff systems like Tru64, but then we also
  41         # don't have any other -g flag that creates mdebug output.
  42         set asm-flags "-no-mdebug -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  43         set debug-flags "-gdwarf-2"
  44     }
  45     "*arm-*-*" {
  46         set asm-arch arm
  47     }
  48     "xscale-*-*" {
  49         set asm-arch arm
  50     }
  51     "frv-*-*" {
  52         set asm-arch frv
  53     }
  54     "s390-*-*" {
  55         set asm-arch s390
  56     }
  57     "s390x-*-*" {
  58         set asm-arch s390x
  59     }
  60     "x86_64-*-*" {
  61         set asm-arch x86_64
  62         set debug-flags "-gdwarf-2"
  63     }
  64     "i\[3456\]86-*-*" {
  65         set asm-arch i386
  66     }
  67     "m32r*-linux*" {
  68         set asm-arch m32r-linux
  69     }
  70     "m32c-*-*" {
  71         set asm-arch m32c
  72     }
  73     "m32r*-*" {
  74         set asm-arch m32r
  75         append link-flags "--whole-archive -lgloss --no-whole-archive"
  76     }
  77     "m6811-*-*" {
  78         set asm-arch m68hc11
  79         set asm-flags "-mshort-double -m68hc11 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  80         set debug-flags "-gdwarf-2"
  81         # This asm test is specific and uses the linker directly.
  82         # We must not use the target board linker script defined for other
  83         # tests.  Remove it and restore it later on.
  84         set board [target_info name]
  85         set old_ldscript [board_info $board ldscript]
  86         unset_board_info "ldscript"
  87     }
  88     "m6812-*-*" {
  89         set asm-arch m68hc11
  90         set asm-flags "-mshort-double -m68hc12 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  91         set debug-flags "-gdwarf-2"
  92         # This asm test is specific and uses the linker directly.
  93         # We must not use the target board linker script defined for other
  94         # tests.  Remove it and restore it later on.
  95         set board [target_info name]
  96         set old_ldscript [board_info $board ldscript]
  97         set_board_info ldscript ""
  98     }
  99     "mips*-*" {
 100         set asm-arch mips
 101     }
 102     "powerpc*-*" {
 103         set asm-arch powerpc
 104     }
 105     "sh*-*-*" {
 106         set asm-arch sh
 107         set debug-flags "-gdwarf-2"
 108     }
 109     "sparc-*-*" {
 110         set asm-arch sparc
 111     }
 112     "sparc64-*-*" {
 113         set asm-arch sparc64
 114         set asm-flags "-xarch=v9 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
 115         set debug-flags "-gdwarf-2"
 116     }
 117     "spu*-*-*" {
 118        set asm-arch spu
 119        set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir} --no-warn"
 120        set debug-flags "-gdwarf-2"
 121     }
 122     "xstormy16-*-*" {
 123         set asm-arch xstormy16
 124         set debug-flags "-gdwarf-2"
 125     }
 126     "v850-*-*" {
 127         set asm-arch v850
 128         set gdb_wrapper_initialized 1
 129     }
 130     "m68k-*-*" {
 131         set asm-arch m68k
 132     }
 133     "ia64-*-*" {
 134         set asm-arch ia64
 135         set debug-flags "-gdwarf-2"
 136     }
 137     "iq2000-*-*" {
 138         set asm-arch iq2000
 139     }
 140     "hppa*-linux-*" {
 141         set asm-arch pa
 142         set debug-flags "-gdwarf-2"
 143     }
 144     "hppa-*-openbsd*" {
 145         set asm-arch pa
 146         set debug-flags "-gdwarf-2"
 147     }
 148     "hppa64-*-hpux*" {
 149         set asm-arch pa64
 150         set debug-flags "-gdwarf-2"
 151     }
 152     "h83*-*" {
 153         set asm-arch h8300
 154         set debug-flags "-gdwarf-2"
 155     }
 156 }
 157
 158 if { "${asm-arch}" == "" } {
 159     untested asm-source.exp
 160     return -1
 161 }
 162
 163 # On NetBSD/ELF we need a special NetBSD-identifying note section.
 164 if { [istarget "*-*-netbsdelf*"]
 165      || [istarget "alpha-*-netbsd*"]
 166      || [istarget "mips*-*-netbsd*"]
 167      || [istarget "powerpc-*-netbsd*"]
 168      || [istarget "x86_64-*-netbsd*"] } then {
 169     set asm-note "netbsd"
 170 }
 171
 172 # On OpenBSD/ELF we need a similar note section.  We make no attempt
 173 # of handing a.out here since most OpenBSD/a.out systems use a rather
 174 # outdated assembler that doesn't assemble this test's code anyway.
 175 if { [istarget "*-*-openbsd*"] } then {
 176     set asm-note "openbsd"
 177 }
 178
 179 # Watch out, we are invoking the assembler, but the testsuite sets multilib
 180 # switches according to compiler syntax.  If we pass these options straight
 181 # to the assembler, they won't always make sense.  If we don't pass them to
 182 # the assembler, the final link will complain that the object files were
 183 # built with different defaults.  So no matter what we do, we lose.  We may as
 184 # well get out of this test sooner rather than later.
 185 set dest [target_info name]
 186 if [board_info $dest exists multilib_flags] {
 187         set multilib_flags [board_info $dest multilib_flags]
 188         if { "${multilib_flags}" != "" } {
 189            untested asm-source.exp
 190            return -1
 191            return;
 192          }
 193 }
 194
 195 set testfile "asm-source"
 196 set binfile ${objdir}/${subdir}/${testfile}
 197 set srcfile1 asmsrc1.s
 198 set srcfile2 asmsrc2.s
 199
 200 remote_exec build "rm -f ${subdir}/arch.inc"
 201 remote_download host ${srcdir}/${subdir}/${asm-arch}.inc ${subdir}/arch.inc
 202 remote_exec build "rm -f ${subdir}/note.inc"
 203 remote_download host ${srcdir}/${subdir}/${asm-note}.inc ${subdir}/note.inc
 204
 205 if { [string equal ${asm-flags} ""] } {
 206     set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
 207 }
 208
 209 if { [string equal ${debug-flags} ""] } {
 210     set debug-flags "-gstabs"
 211 }
 212
 213 # Allow the target board to override the debug flags.
 214 if { [board_info $dest exists debug_flags] } then {
 215     set debug-flags "[board_info $dest debug_flags]"
 216 }
 217
 218 # The debug flags are in the format that gcc expects:
 219 # "-gdwarf-2", "-gstabs+", or "-gstabs".  To be compatible with the
 220 # other languages in the test suite, we accept this input format.
 221 # So the user can run the test suite with:
 222 #
 223 #   runtest --target_board unix/gdb:debug_flags=-gdwarf-2
 224 #   make check RUNTESTFLAGS="--target_board unix/gdb:debug_flags=-gdwarf-2"
 225 #
 226 # However, the GNU assembler has different spellings than gcc.
 227 # So I adjust the debug flags here.
 228
 229 # The GNU assembler spells "dwarf-2" as "dwarf2".
 230 regsub "--" "-gdwarf-2" "${debug-flags}" "-gdwarf2" debug-flags
 231
 232 # The GNU assembler before 2.15 did not support "stabs+".
 233 regsub "--" "-gstabs\[+\]" "${debug-flags}" "-gstabs" debug-flags
 234
 235 # The GNU assembler does not support level options like "-g2" or "-g3".
 236 regsub "--" "-g\[0-9\]" "${debug-flags}" "" debug-flags
 237
 238 if {[target_assemble ${srcdir}/${subdir}/${srcfile1} asmsrc1.o "${asm-flags} ${debug-flags}"] != ""} then {
 239      untested asm-source.exp
 240      return -1
 241 }
 242 if {[target_assemble ${srcdir}/${subdir}/${srcfile2} asmsrc2.o "${asm-flags} ${debug-flags}"] != ""} then {
 243      untested asm-source.exp
 244      return -1
 245 }
 246
 247 # We deliberately don't use gdb_compile here to link together the
 248 # assembled object files.  Using gdb_compile, and therefore the C
 249 # compiler, is conceptually wrong, since we're testing raw assembler
 250 # code here that provides its own startup code.  Using target_link
 251 # also avoids a lot of problems on many systems, most notably on
 252 # *-*-*bsd* and *-*-solaris2*.
 253 if {[target_link "asmsrc1.o asmsrc2.o" "${binfile}" ${link-flags}] != "" } then {
 254      untested asm-source.exp
 255      return -1
 256 }
 257
 258 # Restore the target board linker script for HC11/HC12.
 259 if { [istarget "m6811-*-*"] || [istarget "m6812-*-*"] } {
 260     set_board_info ldscript $old_ldscript
 261 }
 262
 263 remote_exec build "mv asmsrc1.o asmsrc2.o ${objdir}/${subdir}"
 264
 265 # Collect some line numbers.
 266 set line_main       [expr [gdb_get_line_number "main start" "asmsrc1.s"] + 1]
 267 set line_call_foo2  [expr [gdb_get_line_number "call foo2"  "asmsrc1.s"] + 1]
 268 set line_search_comment [expr [gdb_get_line_number "search" "asmsrc1.s"] + 1]
 269 set line_foo3       [expr [gdb_get_line_number "foo3 start" "asmsrc1.s"] + 1]
 270 set line_main_exit  [expr [gdb_get_line_number "main exit"  "asmsrc1.s"] + 1]
 271 set line_foo2       [expr [gdb_get_line_number "foo2 start" "asmsrc2.s"] + 1]
 272 set line_call_foo3  [expr [gdb_get_line_number "call foo3"  "asmsrc2.s"] + 1]
 273 set line_call_foo3_again [expr $line_call_foo3 + 1]
 274 set line_foo2_leave [expr [gdb_get_line_number "foo2 leave" "asmsrc2.s"] + 1]
 275
 276 gdb_start
 277 gdb_reinitialize_dir $srcdir/$subdir
 278 gdb_load ${binfile}
 279
 280 #
 281 # Run to `main' where we begin our tests.
 282 #
 283
 284 if ![runto_main] then {
 285     gdb_suppress_tests
 286 }
 287
 288 # Execute the `f' command and see if the result includes source info.
 289 gdb_test "f" "asmsrc1\[.\]s:$line_main.*several_nops" "f at main"
 290
 291 # See if we properly `next' over a macro with several insns.
 292 gdb_test "n" "$line_call_foo2\[         \]*.*foo2" "next over macro"
 293
 294 # See if we can properly `step' into a subroutine call.
 295 gdb_test "s" "$line_foo2\[      \]*.*" "step into foo2"
 296
 297 # Test 'info target', and incidentally capture the entry point address.
 298 set entry_point 0
 299 send_gdb "info target\n"
 300 gdb_expect {
 301     -re "Symbols from .*asm-source.*Entry point: 0x(\[01232456789abcdefABCDEF\]+).*$gdb_prompt $" {
 302         set entry_point $expect_out(1,string)
 303         pass "info target"
 304     }
 305     -re ".*$gdb_prompt $" {
 306         fail "info target"
 307     }
 308     timeout {
 309         fail "info target (timeout)"
 310     }
 311 }
 312
 313 # Capture the start symbol (may be '_start' or 'start')
 314 set entry_symbol ""
 315 send_gdb "info symbol 0x$entry_point\n"
 316 gdb_expect {
 317     -re "info symbol 0x$entry_point\[\r\n\]+(\[^\r\n\]*) in section .*$gdb_prompt $" {
 318         # We match the echoed `info symbol' command here, to help us
 319         # reliably identify the beginning of the start symbol in the
 320         # command's output.  You might think we could just use '^' to
 321         # start matching at the beginning of the line, but
 322         # unfortunately, in Expect, '^' matches the beginning of the
 323         # input that hasn't been matched by any expect clause yet.  If
 324         # every expect clause consumes a complete line, along with its
 325         # terminating CR/LF, this is equivalent to the beginning of a
 326         # line.  But expect clauses that end with `.*' will consume as
 327         # much as happened to arrive from the TTY --- exactly where
 328         # they leave you depends on inter-process timing.  :(
 329         set entry_symbol $expect_out(1,string)
 330         pass "info symbol"
 331     }
 332     -re ".*$gdb_prompt $" {
 333         fail "info symbol"
 334     }
 335     timeout {
 336         fail "info symbol (timeout)"
 337     }
 338 }
 339
 340 # Now try a 'list' from the other source file.
 341 gdb_test "list $entry_symbol" ".*gdbasm_startup.*" "list"
 342
 343 # Now try a source file search
 344 gdb_test "search A routine for foo2 to call" \
 345         "$line_search_comment\[ \t\]+comment \"A routine for foo2 to call.\"" "search"
 346
 347 # See if `f' prints the right source file.
 348 gdb_test "f" ".*asmsrc2\[.\]s:$line_foo2.*" "f in foo2"
 349
 350 # `next' one insn (or macro) to set up our stackframe (for the following bt).
 351 gdb_test "n" "$line_call_foo3\[         \]*.*foo3" "n in foo2"
 352
 353 # See if a simple `bt' prints the right source files and
 354 # doesn't fall off the stack.
 355
 356 gdb_test "bt 10" \
 357         "\#0.*foo2.*asmsrc2\[.\]s:$line_call_foo3.*\#1.*main.*asmsrc1\[.\]s:$line_call_foo2" \
 358         "bt ALL in foo2"
 359
 360 # See if a capped `bt' prints the right source files.
 361 gdb_test "bt 2" "\#0.*foo2.*asmsrc2\[.\]s:$line_call_foo3.*\#1.*main.*asmsrc1\[.\]s:$line_call_foo2.*" "bt 2 in foo2"
 362
 363 # Step into another subroutine which lives back in the first source file.
 364 gdb_test "s" "" "s 2"
 365
 366 # Next over insns to set up the stack frame.
 367 gdb_test "n" "" "n 2"
 368
 369 # Now see if a capped `bt' is correct.
 370 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"
 371
 372 # Try 'info source' from asmsrc1.s
 373 gdb_test "info source" \
 374         "Current source file is .*asmsrc1.s.*Source language is asm.*" \
 375         "info source asmsrc1.s"
 376
 377 # Try 'finishing' from foo3
 378 gdb_test "finish" "Run till exit from.*\[\r\n\]$line_call_foo3_again\[ \t\]+gdbasm_call foo3" \
 379         "finish from foo3"
 380
 381 # Try 'info source' from asmsrc2.s
 382 gdb_test "info source" \
 383         "Current source file is .*asmsrc2.s.*Source language is asm.*" \
 384         "info source asmsrc2.s"
 385
 386 # Try 'info sources'.  This can produce a lot of output on systems
 387 # with dynamic linking, where the system's shared libc was compiled
 388 # with debugging info; for example, on Linux, this produces 47kb of
 389 # output.  So we consume it as we go.
 390 send_gdb "info sources\n"
 391 set seen_asmsrc_1 0
 392 set seen_asmsrc_2 0
 393 gdb_expect {
 394     -re "^\[^,\]*asmsrc1.s(, |\[\r\n\]+)" {
 395         set seen_asmsrc_1 1
 396         exp_continue
 397     }
 398     -re "^\[^,\]*asmsrc2.s(, |\[\r\n\]+)" {
 399         set seen_asmsrc_2 1
 400         exp_continue
 401     }
 402     -re ", " {
 403         exp_continue
 404     }
 405     -re "$gdb_prompt $" {
 406         if {$seen_asmsrc_1 && $seen_asmsrc_2} {
 407             pass "info sources"
 408         } else {
 409             fail "info sources"
 410         }
 411     }
 412     timeout {
 413             fail "info sources (timeout)"
 414     }
 415 }
 416
 417
 418 # Try 'info line'
 419 gdb_test "info line" \
 420         "Line $line_call_foo3_again of.*asmsrc2.s.*starts at.*<foo2+.*> and ends at.*<foo2+.*>." \
 421         "info line"
 422
 423 # Try 'nexting' over next call to foo3
 424 gdb_test "next" "$line_foo2_leave\[ \t\]+gdbasm_leave" "next over foo3"
 425
 426 # Try 'return' from foo2
 427 gdb_test "return" "\#0  main .*$line_main_exit\[ \t\]+gdbasm_exit0" "return from foo2" \
 428         "Make (foo2|selected stack frame) return now\?.*" "y"
 429
 430 # Disassemble something, check the output
 431 proc test_dis { command var } {
 432     global gdb_prompt
 433     send_gdb "${command}\n"
 434     gdb_expect {
 435         -re "${var}.*:.*(Cannot access|Bad address)" {
 436             # The "disassembler" was only accessing the local
 437             # executable and that would cause attempts to disassemble
 438             # variables to fail (memory not valid).
 439             fail "${command} (memory read error)"
 440         }
 441         -re "${var}.*:.*${gdb_prompt}" {
 442             pass "${command}"
 443         }
 444         timeout {
 445             fail "${command} (timeout)"
 446         }
 447     }
 448 }
 449
 450 # See if we can look at a global variable, three ways
 451 gdb_test "print globalvar" ".* = 11" "look at global variable"
 452 test_dis "x/i &globalvar" "globalvar"
 453 test_dis "disassem &globalvar &globalvar+1" "globalvar"
 454
 455 # See if we can look at a static variable, three ways
 456 gdb_test "print staticvar" ".* = 5" "look at static variable"
 457 test_dis "x/i &staticvar" "staticvar"
 458 test_dis "disassem &staticvar &staticvar+1" "staticvar"
 459
 460 # See if we can look at a static function
 461 gdb_test "disassem foostatic" ".*<foostatic\\+0>:.*End of assembler dump." \
 462         "look at static function"
 463
 464 remote_exec build "rm -f ${subdir}/arch.inc"
 465 remote_exec build "rm -f ${subdir}/note.inc"