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

   1 # Copyright 1998, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
   2 #
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 2 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program; if not, write to the Free Software
  15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  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}/${subdir}"
  46         set debug-flags "-gdwarf-2"
  47     }
  48     "*arm-*-*" {
  49         set asm-arch arm
  50     }
  51     "xscale-*-*" {
  52         set asm-arch arm
  53     }
  54     "d10v-*-*" {
  55         set asm-arch d10v
  56     }
  57     "frv-*-*" {
  58         set asm-arch frv
  59     }
  60     "s390-*-*" {
  61         set asm-arch s390
  62     }
  63     "s390x-*-*" {
  64         set asm-arch s390x
  65     }
  66     "x86_64-*-*" {
  67         set asm-arch x86_64
  68         set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
  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     "m32r*-*" {
  78         set asm-arch m32r
  79         append link-flags "--whole-archive -lgloss --no-whole-archive"
  80     }
  81     "m6811-*-*" {
  82         set asm-arch m68hc11
  83         set asm-flags "-mshort-double -m68hc11 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  84         set debug-flags "-gdwarf-2"
  85         # This asm test is specific and uses the linker directly.
  86         # We must not use the target board linker script defined for other
  87         # tests.  Remove it and restore it later on.
  88         set board [target_info name]
  89         set old_ldscript [board_info $board ldscript]
  90         unset_board_info "ldscript"
  91     }
  92     "m6812-*-*" {
  93         set asm-arch m68hc11
  94         set asm-flags "-mshort-double -m68hc12 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  95         set debug-flags "-gdwarf-2"
  96         # This asm test is specific and uses the linker directly.
  97         # We must not use the target board linker script defined for other
  98         # tests.  Remove it and restore it later on.
  99         set board [target_info name]
 100         set old_ldscript [board_info $board ldscript]
 101         set_board_info ldscript ""
 102     }
 103     "mips*-*" {
 104         set asm-arch mips
 105     }
 106     "powerpc*-*" {
 107         set asm-arch powerpc
 108     }
 109     "sh*-*-*" {
 110         set asm-arch sh
 111         set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
 112         set debug-flags "-gdwarf-2"
 113     }
 114     "sparc-*-*" {
 115         set asm-arch sparc
 116     }
 117     "sparc64-*-*" {
 118         set asm-arch sparc64
 119         set asm-flags "-xarch=v9 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
 120         set debug-flags "-gdwarf-2"
 121     }
 122     "xstormy16-*-*" {
 123         set asm-arch xstormy16
 124         set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
 125         set debug-flags "-gdwarf-2"
 126     }
 127     "v850-*-*" {
 128         set asm-arch v850
 129         set gdb_wrapper_initialized 1
 130     }
 131     "m68k-*-*" {
 132         set asm-arch m68k
 133     }
 134     "ia64-*-*" {
 135         set asm-arch ia64
 136         set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
 137         set debug-flags "-gdwarf-2"
 138     }
 139     "iq2000-*-*" {
 140         set asm-arch iq2000
 141     }
 142     "hppa*-linux-*" {
 143         set asm-arch pa
 144         set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
 145         set debug-flags "-gdwarf-2"
 146     }
 147     "h83*-*" {
 148         set asm-arch h8300
 149         set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
 150     }
 151 }
 152
 153 if { "${asm-arch}" == "" } {
 154     gdb_suppress_entire_file "Assembly source test -- not implemented for this target."
 155 }
 156
 157 # On NetBSD/ELF we need a special NetBSD-identifying note section.
 158 if { [istarget "*-*-netbsdelf*"]
 159      || [istarget "mips*-*-netbsd*"]
 160      || [istarget "x86_64-*-netbsd*"] } then {
 161     set asm-note "netbsd"
 162 }
 163
 164 # On OpenBSD/ELF we need a similar note section.  We make no attempt
 165 # of handing a.out here since most OpenBSD/a.out systems use a rather
 166 # outdated assembler that doesn't assemble this test's code anyway.
 167 if { [istarget "*-*-openbsd*"] } then {
 168     set asm-note "openbsd"
 169 }
 170
 171 # Watch out, we are invoking the assembler, but the testsuite sets multilib
 172 # switches according to compiler syntax.  If we pass these options straight
 173 # to the assembler, they won't always make sense.  If we don't pass them to
 174 # the assembler, the final link will complain that the object files were
 175 # built with different defaults.  So no matter what we do, we lose.  We may as
 176 # well get out of this test sooner rather than later.
 177 set dest [target_info name]
 178 if [board_info $dest exists multilib_flags] {
 179         set multilib_flags [board_info $dest multilib_flags]
 180         if { "${multilib_flags}" != "" } {
 181            gdb_suppress_entire_file "Assembly source test -- multilibs not supported by this test."
 182            return;
 183          }
 184 }
 185
 186 set testfile "asm-source"
 187 set binfile ${objdir}/${subdir}/${testfile}
 188 set srcfile1 asmsrc1.s
 189 set srcfile2 asmsrc2.s
 190
 191 remote_exec build "rm -f ${subdir}/arch.inc"
 192 remote_download host ${srcdir}/${subdir}/${asm-arch}.inc ${subdir}/arch.inc
 193 remote_exec build "rm -f ${subdir}/note.inc"
 194 remote_download host ${srcdir}/${subdir}/${asm-note}.inc ${subdir}/note.inc
 195
 196 if { "${asm-flags}" == "" } {
 197     set asm-flags "-I${srcdir}/${subdir} -I${objdir}/${subdir}"
 198     set debug-flags "-gstabs"
 199 }
 200
 201 # Allow the target board to override the debug flags.
 202 if { [board_info $dest exists debug_flags] } then {
 203     set debug-flags "[board_info $dest debug_flags]"
 204 }
 205
 206 # The debug flags are in the format that gcc expects:
 207 # "-gdwarf-2", "-gstabs+", or "-gstabs".  To be compatible with the
 208 # other languages in the test suite, we accept this input format.
 209 # So the user can run the test suite with:
 210 #
 211 #   runtest --target_board unix/gdb:debug_flags=-gdwarf-2
 212 #   make check RUNTESTFLAGS="--target_board unix/gdb:debug_flags=-gdwarf-2"
 213 #
 214 # However, the GNU assembler has different spellings than gcc.
 215 # So I adjust the debug flags here.
 216
 217 # The GNU assembler spells "dwarf-2" as "dwarf2".
 218 regsub "--" "-gdwarf-2" "${debug-flags}" "-gdwarf2" debug-flags
 219
 220 # The GNU assembler before 2.15 did not support "stabs+".
 221 regsub "--" "-gstabs\[+\]" "${debug-flags}" "-gstabs" debug-flags
 222
 223 # The GNU assembler does not support level options like "-g2" or "-g3".
 224 regsub "--" "-g\[0-9\]" "${debug-flags}" "" debug-flags
 225
 226 if {[target_assemble ${srcdir}/${subdir}/${srcfile1} asmsrc1.o "${asm-flags} ${debug-flags}"] != ""} then {
 227      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
 228 }
 229 if {[target_assemble ${srcdir}/${subdir}/${srcfile2} asmsrc2.o "${asm-flags} ${debug-flags}"] != ""} then {
 230      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
 231 }
 232
 233 # We deliberately don't use gdb_compile here to link together the
 234 # assembled object files.  Using gdb_compile, and therefore the C
 235 # compiler, is conceptually wrong, since we're testing raw assembler
 236 # code here that provides its own startup code.  Using target_link
 237 # also avoids a lot of problems on many systems, most notably on
 238 # *-*-*bsd* and *-*-solaris2*.
 239 if {[target_link "asmsrc1.o asmsrc2.o" "${binfile}" ${link-flags}] != "" } then {
 240      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
 241 }
 242
 243 # Restore the target board linker script for HC11/HC12.
 244 if { [istarget "m6811-*-*"] || [istarget "m6812-*-*"] } {
 245     set_board_info ldscript $old_ldscript
 246 }
 247
 248 remote_exec build "mv asmsrc1.o asmsrc2.o ${objdir}/${subdir}"
 249
 250
 251 gdb_start
 252 gdb_reinitialize_dir $srcdir/$subdir
 253 gdb_load ${binfile}
 254
 255 #
 256 # Run to `main' where we begin our tests.
 257 #
 258
 259 if ![runto_main] then {
 260     gdb_suppress_tests
 261 }
 262
 263 # Execute the `f' command and see if the result includes source info.
 264 gdb_test "f" "asmsrc1\[.\]s:29.*several_nops" "f at main"
 265
 266 # See if we properly `next' over a macro with several insns.
 267 gdb_test "n" "33\[      \]*.*foo2" "next over macro"
 268
 269 # See if we can properly `step' into a subroutine call.
 270 gdb_test "s" "8\[       \]*.*" "step into foo2"
 271
 272 # Test 'info target', and incidentally capture the entry point address.
 273 set entry_point 0
 274 send_gdb "info target\n"
 275 gdb_expect {
 276     -re "Symbols from .*asm-source.*Entry point: 0x(\[01232456789abcdefABCDEF\]+).*$gdb_prompt $" {
 277         set entry_point $expect_out(1,string)
 278         pass "info target"
 279     }
 280     -re ".*$gdb_prompt $" {
 281         fail "info target"
 282     }
 283     timeout {
 284         fail "info target (timeout)"
 285     }
 286 }
 287
 288 # Capture the start symbol (may be '_start' or 'start')
 289 set entry_symbol ""
 290 send_gdb "info symbol 0x$entry_point\n"
 291 gdb_expect {
 292     -re "info symbol 0x$entry_point\[\r\n\]+(\[^\r\n\]*) in section .*$gdb_prompt $" {
 293         # We match the echoed `info symbol' command here, to help us
 294         # reliably identify the beginning of the start symbol in the
 295         # command's output.  You might think we could just use '^' to
 296         # start matching at the beginning of the line, but
 297         # unfortunately, in Expect, '^' matches the beginning of the
 298         # input that hasn't been matched by any expect clause yet.  If
 299         # every expect clause consumes a complete line, along with its
 300         # terminating CR/LF, this is equivalent to the beginning of a
 301         # line.  But expect clauses that end with `.*' will consume as
 302         # much as happened to arrive from the TTY --- exactly where
 303         # they leave you depends on inter-process timing.  :(
 304         set entry_symbol $expect_out(1,string)
 305         pass "info symbol"
 306     }
 307     -re ".*$gdb_prompt $" {
 308         fail "info symbol"
 309     }
 310     timeout {
 311         fail "info symbol (timeout)"
 312     }
 313 }
 314
 315 # Now try a 'list' from the other source file.
 316 gdb_test "list $entry_symbol" ".*gdbasm_startup.*" "list"
 317
 318 # Now try a source file search
 319 gdb_test "search A routine for foo2 to call" \
 320         "40\[ \t\]+comment \"A routine for foo2 to call.\"" "search"
 321
 322 # See if `f' prints the right source file.
 323 gdb_test "f" ".*asmsrc2\[.\]s:8.*" "f in foo2"
 324
 325 # `next' one insn (or macro) to set up our stackframe (for the following bt).
 326 gdb_test "n" "12\[      \]*.*foo3" "n in foo2"
 327
 328 # See if a simple `bt' prints the right source files and
 329 # doesn't fall off the stack.
 330
 331 gdb_test "bt 10" \
 332         "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33" \
 333         "bt ALL in foo2"
 334
 335 # See if a capped `bt' prints the right source files.
 336 gdb_test "bt 2" "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33.*" "bt 2 in foo2"
 337
 338 # Step into another subroutine which lives back in the first source file.
 339 gdb_test "s" "" "s 2"
 340
 341 # Next over insns to set up the stack frame.
 342 gdb_test "n" "" "n 2"
 343
 344 # Now see if a capped `bt' is correct.
 345 gdb_test "bt 3" "\#0.*foo3.*asmsrc1\[.\]s:45.*\#1.*foo2.*asmsrc2\[.\]s:12.*\#2.*main.*asmsrc1\[.\]s:33.*" "bt 3 in foo3"
 346
 347 # Try 'info source' from asmsrc1.s
 348 gdb_test "info source" \
 349         "Current source file is .*asmsrc1.s.*Source language is asm.*" \
 350         "info source asmsrc1.s"
 351
 352 # Try 'finishing' from foo3
 353 gdb_test "finish" "Run till exit from.*\[\r\n\]13\[ \t\]+gdbasm_call foo3" \
 354         "finish from foo3"
 355
 356 # Try 'info source' from asmsrc2.s
 357 gdb_test "info source" \
 358         "Current source file is .*asmsrc2.s.*Source language is asm.*" \
 359         "info source asmsrc2.s"
 360
 361 # Try 'info sources'.  This can produce a lot of output on systems
 362 # with dynamic linking, where the system's shared libc was compiled
 363 # with debugging info; for example, on Linux, this produces 47kb of
 364 # output.  So we consume it as we go.
 365 send_gdb "info sources\n"
 366 set seen_asmsrc_1 0
 367 set seen_asmsrc_2 0
 368 gdb_expect {
 369     -re "^\[^,\]*asmsrc1.s(, |\[\r\n\]+)" {
 370         set seen_asmsrc_1 1
 371         exp_continue
 372     }
 373     -re "^\[^,\]*asmsrc2.s(, |\[\r\n\]+)" {
 374         set seen_asmsrc_2 1
 375         exp_continue
 376     }
 377     -re ", " {
 378         exp_continue
 379     }
 380     -re "$gdb_prompt $" {
 381         if {$seen_asmsrc_1 && $seen_asmsrc_2} {
 382             pass "info sources"
 383         } else {
 384             fail "info sources"
 385         }
 386     }
 387     timeout {
 388             fail "info sources (timeout)"
 389     }
 390 }
 391
 392
 393 # Try 'info line'
 394 gdb_test "info line" \
 395         "Line 13 of.*asmsrc2.s.*starts at.*<foo2+.*> and ends at.*<foo2+.*>." \
 396         "info line"
 397
 398 # Try 'nexting' over next call to foo3
 399 gdb_test "next" "17\[ \t\]+gdbasm_leave" "next over foo3"
 400
 401 # Try 'return' from foo2
 402 gdb_test "return" "\#0  main .*37\[ \t\]+gdbasm_exit0" "return from foo2" \
 403         "Make (foo2|selected stack frame) return now\?.*" "y"
 404
 405 # Disassemble something, check the output
 406 proc test_dis { command var } {
 407     global gdb_prompt
 408     send_gdb "${command}\n"
 409     gdb_expect {
 410         -re "${var}.*:.*(Cannot access|Bad address)" {
 411             # The "disassembler" was only accessing the local
 412             # executable and that would cause attempts to disassemble
 413             # variables to fail (memory not valid).
 414             fail "${command} (memory read error)"
 415         }
 416         -re "${var}.*:.*${gdb_prompt}" {
 417             pass "${command}"
 418         }
 419         timeout {
 420             fail "${command} (timeout)"
 421         }
 422     }
 423 }
 424
 425 # See if we can look at a global variable, three ways
 426 gdb_test "print globalvar" ".* = 11" "look at global variable"
 427 test_dis "x/i &globalvar" "globalvar"
 428 test_dis "disassem &globalvar &globalvar+1" "globalvar"
 429
 430 # See if we can look at a static variable, three ways
 431 gdb_test "print staticvar" ".* = 5" "look at static variable"
 432 test_dis "x/i &staticvar" "staticvar"
 433 test_dis "disassem &staticvar &staticvar+1" "staticvar"
 434
 435 # See if we can look at a static function
 436 gdb_test "disassem foostatic" ".*<foostatic\\+0>:.*End of assembler dump." \
 437         "look at static function"
 438
 439 remote_exec build "rm -f ${subdir}/arch.inc"
 440 remote_exec build "rm -f ${subdir}/note.inc"