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     "lm32-*" {
  68         set asm-arch lm32
  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 $line_call_foo3_again of.*asmsrc2.s.*starts at.*<foo2+.*> and ends at.*<foo2+.*>." \
 424         "info line"
 425
 426 # Try 'nexting' over next call to foo3
 427 gdb_test "next" "$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" ".*<foostatic\\+0>:.*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"