gdb/testsuite/gdb.base/macscp.exp

   1 # Test macro scoping.
   2 # Copyright 2002, 2007-2012 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
  18 set srcfile macscp1.c
  19 set testfile "macscp"
  20 set objfile ${objdir}/${subdir}/${testfile}.o
  21 set binfile ${objdir}/${subdir}/${testfile}
  22
  23 set options { debug additional_flags=-DFROM_COMMANDLINE=ARG}
  24
  25 get_compiler_info ${binfile}
  26 if [test_compiler_info gcc*] {
  27     lappend options additional_flags=-g3
  28 }
  29
  30 # Generate the intermediate object file.  This is required by Darwin to
  31 # have access to the .debug_macinfo section.
  32 if  {[gdb_compile "${srcdir}/${subdir}/macscp1.c" "${objfile}" \
  33           object $options] != ""
  34      || [gdb_compile "${objfile}" "${binfile}" executable $options] != "" } {
  35     untested macscp.exp
  36     return -1
  37 }
  38
  39 gdb_exit
  40 gdb_start
  41 gdb_reinitialize_dir $srcdir/$subdir
  42 gdb_load ${binfile}
  43
  44
  45 # Ask GDB to show the current definition of MACRO, and return a list
  46 # describing the result.
  47 #
  48 # The return value has the form {FILE1 FILE2 ... DEF}, which means
  49 # that MACRO has the definition `DEF', and was defined in `FILE1',
  50 # which was included from `FILE2', included from ... .
  51 #
  52 # If GDB says that MACRO has no definition, return the string `undefined'.
  53 #
  54 # If GDB complains that it doesn't have any information about
  55 # preprocessor macro definitions, return the string `no-macro-info'.
  56 #
  57 # If expect times out waiting for GDB, we return the string `timeout'.
  58 #
  59 # If GDB's output doesn't otherwise match what we're expecting, we
  60 # return the empty string.
  61
  62 proc info_macro {macro} {
  63     global gdb_prompt
  64
  65     set filepat {macscp[0-9]+\.[ch]}
  66     set definition {}
  67     set location {}
  68
  69     # Line number zero is set for macros defined from the compiler command-line.
  70     # Such macros are not being tested by this function.
  71     set nonzero {[1-9][0-9]*}
  72
  73     send_gdb "info macro ${macro}\n"
  74
  75     set debug_me 0
  76
  77     if {$debug_me} {exp_internal 1}
  78     gdb_expect {
  79         -re "Defined at \[^\r\n\]*(${filepat}):${nonzero}\[\r\n\]" {
  80             # `location' and `definition' should be empty when we see
  81             # this message.
  82             if {[llength $location] == 0 && [llength $definition] == 0} {
  83                 set location $expect_out(1,string)
  84                 exp_continue
  85             } else {
  86                 # Exit this expect loop, with a result indicating failure.
  87                 set definition {}
  88             }
  89         }
  90         -re "The symbol `${macro}' has no definition as a C/C\\+\\+ preprocessor macro\[^\r\n\]*\[\r\n\]" {
  91             # `location' and `definition' should be empty when we see
  92             # this message.
  93             if {[llength $location] == 0 && [llength $definition] == 0} {
  94                 set definition undefined
  95                 exp_continue
  96             } else {
  97                 # Exit this expect loop, with a result indicating failure.
  98                 set definition {}
  99             }
 100         }
 101         -re "^\[\r\n\]*  included at \[^\r\n\]*(${filepat}):${nonzero}\[\r\n\]" {
 102             # `location' should *not* be empty when we see this
 103             # message.  It should have recorded at least the initial
 104             # `Defined at ' message (for definitions) or ` at' message
 105             # (for undefined symbols).
 106             if {[llength $location] != 0} {
 107                 lappend location $expect_out(1,string)
 108                 exp_continue
 109             } else {
 110                 # Exit this expect loop, with a result indicating failure.
 111                 set definition {}
 112             }
 113         }
 114         -re "^\[\r\n\]*at \[^\r\n\]*(${filepat}):${nonzero}\[\r\n\]" {
 115             # This appears after a `has no definition' message.
 116             # `location' should be empty when we see it.
 117             if {[string compare $definition undefined] == 0 \
 118                     && [llength $location] == 0} {
 119                 set location $expect_out(1,string)
 120                 exp_continue
 121             } else {
 122                 # Exit this expect loop, with a result indicating failure.
 123                 set definition {}
 124             }
 125         }
 126         -re "#define ${macro} (\[^\r\n\]*)\[\r\n\]" {
 127             # `definition' should be empty when we see this message.
 128             if {[string compare $definition ""] == 0} {
 129                 set definition $expect_out(1,string)
 130                 exp_continue
 131             } else {
 132                 # Exit this expect loop, with a result indicating failure.
 133                 set definition {}
 134             }
 135         }
 136         -re "has no preprocessor macro information.*$gdb_prompt $" {
 137             set definition no-macro-info
 138         }
 139         -re "$gdb_prompt $" {
 140             # Exit the expect loop; let the existing value of `definition'
 141             # indicate failure or success.
 142         }
 143         timeout {
 144             set definition timeout
 145         }
 146     }
 147     if {$debug_me} {exp_internal 0}
 148
 149     switch -exact -- $definition {
 150         no-macro-info { return no-macro-info }
 151         timeout { return timeout }
 152         undefined { return undefined }
 153         default {
 154             if {[llength $location] >= 1} {
 155                 return [concat $location [list $definition]]
 156             } else {
 157                 return {}
 158             }
 159         }
 160     }
 161 }
 162
 163
 164 # Call info_macro to show the definition of MACRO.  Expect a result of
 165 # EXPECTED.  Use WHERE in pass/fail messages to identify the context.
 166 # Return non-zero if we should abort the entire test file, or zero if
 167 # we can continue.
 168 proc check_macro {macro expected where} {
 169     set func_def [info_macro $macro]
 170     if {[string compare $func_def $expected] == 0} {
 171         pass "info macro $macro $where"
 172     } else {
 173         switch -exact -- $func_def {
 174             no-macro-info {
 175                 xfail "executable includes no macro debugging information"
 176                 return 1
 177             }
 178             undefined {
 179                 fail "info macro $macro $where (undefined)"
 180                 return 1
 181             }
 182             timeout {
 183                 fail "info macro $macro $where (timeout)"
 184             }
 185             default {
 186                 fail "info macro $macro $where"
 187             }
 188         }
 189     }
 190     return 0
 191 }
 192
 193
 194 # List the function FUNC, and then show the definition of MACRO,
 195 # expecting the result EXPECTED.
 196 proc list_and_check_macro {func macro expected} {
 197     gdb_test "list $func" ".*${func}.*" "list $func for $macro"
 198     return [check_macro $macro $expected "after `list $func'"]
 199 }
 200
 201 gdb_test "list main" ".*main.*" "list main for support check"
 202 set macro_support "unknown"
 203 gdb_test_multiple "info source" "Test macro information"  {
 204     -re "Includes preprocessor macro info\..*$gdb_prompt $" {
 205         set macro_support 1
 206         verbose "Source has macro information"
 207     }
 208     -re "Does not include preprocessor macro info\..*$gdb_prompt $" {
 209         set macro_support 0
 210         verbose "Source has no macro information"
 211     }
 212     default {
 213         warning "couldn't check macro support (no valid response)."
 214     }
 215 }
 216 if {$macro_support == 0} {
 217     unsupported "Skipping test because debug information does not include macro information."
 218     return 0
 219 }
 220
 221 list_and_check_macro main WHERE {macscp1.c {before macscp1_3}}
 222 list_and_check_macro macscp2_2 WHERE {macscp2.h macscp1.c {before macscp2_2}}
 223 list_and_check_macro macscp3_2 WHERE {macscp3.h macscp1.c {before macscp3_2}}
 224
 225
 226 # Assuming the current position inside program by `list' from above.
 227 gdb_test "info macro FROM_COMMANDLINE" \
 228          "Defined at \[^\r\n\]*:0\r\n-DFROM_COMMANDLINE=ARG"
 229
 230
 231 # Although GDB's macro table structures distinguish between multiple
 232 # #inclusions of the same file, GDB's other structures don't.  So the
 233 # `list' command here doesn't reliably select one #inclusion or the
 234 # other, even though it could.  It would be nice to eventually change
 235 # GDB's structures to handle this correctly.
 236 gdb_test "list macscp4_2_from_macscp2" ".*macscp4_2_, MACSCP4_INCLUSION.*"
 237 switch -exact -- [info_macro WHERE] {
 238     {macscp4.h macscp2.h macscp1.c {before macscp4_2_..., from macscp2.h}} {
 239         pass "info macro WHERE after `list macscp_4_2_from_macscp2'"
 240     }
 241     {macscp4.h macscp3.h macscp1.c {before macscp4_2_..., from macscp3.h}} {
 242         setup_kfail "gdb/555" *-*-*
 243         fail "info macro WHERE after `list macscp_4_2_from_macscp2' (gdb/555)"
 244     }
 245     timeout {
 246         fail "info macro WHERE after `list macscp_4_2_from_macscp2' (timeout)"
 247     }
 248     default { fail "info macro WHERE after `list macscp_4_2_from_macscp2'" }
 249 }
 250
 251 gdb_test "list macscp4_2_from_macscp3" ".*macscp4_2_, MACSCP4_INCLUSION.*"
 252 switch -exact -- [info_macro WHERE] {
 253     {macscp4.h macscp3.h macscp1.c {before macscp4_2_..., from macscp3.h}} {
 254         pass "info macro WHERE after `list macscp_4_2_from_macscp3'"
 255     }
 256     {macscp4.h macscp2.h macscp1.c {before macscp4_2_..., from macscp2.h}} {
 257         setup_kfail "gdb/555" *-*-*
 258         fail "info macro WHERE after `list macscp_4_2_from_macscp3' (gdb/555)"
 259     }
 260     timeout {
 261         fail "info macro WHERE after `list macscp_4_2_from_macscp3' (timeout)"
 262     }
 263     default { fail "info macro WHERE after `list macscp_4_2_from_macscp3'" }
 264 }
 265
 266
 267 #### Test the selection of the macro scope by the current frame.
 268
 269 ### A table of functions, in the order they will be reached, which is
 270 ### also the order they appear in the preprocessed output.  Each entry
 271 ### has the form {FUNCNAME WHERE KFAILWHERE}, where:
 272 ### - FUNCNAME is the name of the function,
 273 ### - WHERE is the definition we expect to see for the macro `WHERE', as
 274 ###   returned by `info_macro', and
 275 ### - KFAILWHERE is an alternate definition which should be reported
 276 ###   as a `known failure', due to GDB's inability to distinguish multiple
 277 ###   #inclusions of the same file.
 278 ### KFAILWHERE may be omitted.
 279
 280 set funcs {
 281     {
 282         macscp1_1
 283         {macscp1.c {before macscp1_1}}
 284     }
 285     {
 286         macscp2_1
 287         {macscp2.h macscp1.c {before macscp2_1}}
 288     }
 289     {
 290         macscp4_1_from_macscp2
 291         {macscp4.h macscp2.h macscp1.c {before macscp4_1_..., from macscp2.h}}
 292         {macscp4.h macscp3.h macscp1.c {before macscp4_1_..., from macscp3.h}}
 293     }
 294     {
 295         macscp4_2_from_macscp2
 296         {macscp4.h macscp2.h macscp1.c {before macscp4_2_..., from macscp2.h}}
 297         {macscp4.h macscp3.h macscp1.c {before macscp4_2_..., from macscp3.h}}
 298     }
 299     {
 300         macscp2_2
 301         {macscp2.h macscp1.c {before macscp2_2}}
 302     }
 303     {
 304         macscp1_2
 305         {macscp1.c {before macscp1_2}}
 306     }
 307     {
 308         macscp3_1
 309         {macscp3.h macscp1.c {before macscp3_1}}
 310     }
 311     {
 312         macscp4_1_from_macscp3
 313         {macscp4.h macscp3.h macscp1.c {before macscp4_1_..., from macscp3.h}}
 314         {macscp4.h macscp2.h macscp1.c {before macscp4_1_..., from macscp2.h}}
 315     }
 316     {
 317         macscp4_2_from_macscp3
 318         {macscp4.h macscp3.h macscp1.c {before macscp4_2_..., from macscp3.h}}
 319         {macscp4.h macscp2.h macscp1.c {before macscp4_2_..., from macscp2.h}}
 320     }
 321     {
 322         macscp3_2
 323         {macscp3.h macscp1.c {before macscp3_2}}
 324     }
 325     {
 326         macscp1_3
 327         {macscp1.c {before macscp1_3}}
 328     }
 329 }
 330
 331 proc maybe_kfail { func test_name } {
 332     # We can't get the right scope info when we're stopped in
 333     # the macro4_ functions.
 334     if {[string match macscp4_* $func]} {
 335         kfail gdb/555 "$test_name"
 336     } else {
 337         fail "$test_name"
 338     }
 339 }
 340
 341 # Start the program running.
 342 if {! [runto_main]} {
 343     fail "macro tests suppressed: couldn't run to main"
 344     return 0
 345 }
 346
 347 # Set a breakpoint on each of the functions.
 348 foreach func_entry $funcs {
 349     set func [lindex $func_entry 0]
 350     gdb_test "break $func" "Breakpoint.*"
 351 }
 352
 353 # Run to each of the breakpoints and check the definition (or lack
 354 # thereof) of each macro.
 355 for {set i 0} {$i < [llength $funcs]} {incr i} {
 356     set func_entry [lindex $funcs $i]
 357     set func [lindex $func_entry 0]
 358     set expected [lindex $func_entry 1]
 359     set kfail_expected [lindex $func_entry 2]
 360
 361     # Run to the breakpoint for $func.
 362     gdb_test "continue" "Breakpoint $decimal, $func .*" "continue to $func"
 363
 364     # Check the macro WHERE.
 365     set result [info_macro WHERE]
 366     if {[string compare $result $expected] == 0} {
 367         pass "info macro WHERE stopped in $func"
 368     } elseif {[string compare $result $kfail_expected] == 0} {
 369         setup_kfail "gdb/555" *-*-*
 370         fail "info macro WHERE stopped in $func (gdb/555)"
 371     } elseif {[string compare $result timeout] == 0} {
 372         fail "info macro WHERE stopped in $func (timeout)"
 373     } else {
 374         fail "info macro WHERE stopped in $func"
 375     }
 376
 377     # Check that the BEFORE_<func> macros for all prior functions are
 378     # #defined, and that those for all subsequent functions are not.
 379     for {set j 0} {$j < [llength $funcs]} {incr j} {
 380         if {$j != $i} {
 381             set func_j_entry [lindex $funcs $j]
 382             set func_j [lindex $func_j_entry 0]
 383
 384             set before_macro "BEFORE_[string toupper $func_j]"
 385             set test_name \
 386                     "$before_macro defined/undefined when stopped at $func"
 387             set result [info_macro $before_macro]
 388
 389             if {$j < $i} {
 390                 if {[llength $result] >= 2 && \
 391                         [string compare [lindex $result end] {}] == 0} {
 392                     pass $test_name
 393                 } elseif {[string compare $result timeout] == 0} {
 394                     fail "$test_name (timeout)"
 395                 } else {
 396                     maybe_kfail $func "$test_name"
 397                 }
 398             } elseif {$j > $i} {
 399                 switch -- [lindex $result end] {
 400                     undefined { pass $test_name }
 401                     timeout { fail "$test_name (timeout)" }
 402                     default {
 403                         maybe_kfail $func "$test_name"
 404                     }
 405                 }
 406             }
 407
 408             set until_macro "UNTIL_[string toupper $func_j]"
 409             set test_name \
 410                     "$until_macro defined/undefined when stopped at $func"
 411             set result [info_macro $until_macro]
 412
 413             if {$j <= $i} {
 414                 switch -- [lindex $result end] {
 415                     undefined { pass $test_name }
 416                     timeout { fail "$test_name (timeout)" }
 417                     default {
 418                         maybe_kfail $func "$test_name"
 419                     }
 420                 }
 421             } elseif {$j > $i} {
 422                 if {[llength $result] >= 2 && \
 423                         [string compare [lindex $result end] {}] == 0} {
 424                     pass $test_name
 425                 } elseif {[string compare $result timeout] == 0} {
 426                     fail "$test_name (timeout)"
 427                 } else {
 428                     maybe_kfail $func "$test_name"
 429                 }
 430             }
 431         }
 432     }
 433 }
 434
 435 gdb_test "break [gdb_get_line_number "set breakpoint here"]" \
 436     "Breakpoint.*at.* file .*, line.*" \
 437     "breakpoint macscp_expr"
 438
 439 gdb_test "continue" "foo = 0;.*" "continue to macsp_expr"
 440
 441 gdb_test "print address.addr" \
 442   " = 0" \
 443   "print address.addr"
 444
 445 gdb_test "print MACRO_TO_EXPAND" \
 446     "No symbol \"MACRO_TO_EXPAND\" in current context\." \
 447     "print expression with macro before define."
 448
 449 gdb_test "next" "foo = 1;" "next to definition 1"
 450
 451 gdb_test "print MACRO_TO_EXPAND" \
 452     " = 0" \
 453     "print expression with macro in scope."
 454
 455 gdb_test_no_output "macro define MACRO_TO_EXPAND 72" \
 456   "user macro override"
 457
 458 gdb_test "print MACRO_TO_EXPAND" \
 459   " = 72" \
 460   "choose user macro"
 461
 462 gdb_test_no_output "macro undef MACRO_TO_EXPAND" \
 463   "remove user override"
 464
 465 gdb_test "print MACRO_TO_EXPAND" \
 466     " = 0" \
 467     "print expression with macro after removing override"
 468
 469 gdb_test "next" "foo = 2;" "next to definition 2"
 470
 471 gdb_test "print MACRO_TO_EXPAND" \
 472     "No symbol \"MACRO_TO_EXPAND\" in current context\." \
 473     "print expression with macro after undef."
 474
 475 gdb_test_no_output "macro define MACRO_TO_EXPAND 5" \
 476   "basic macro define"
 477
 478 gdb_test "print MACRO_TO_EXPAND" \
 479   " = 5" \
 480   "expansion of defined macro"
 481
 482 gdb_test "macro list" \
 483   "macro define MACRO_TO_EXPAND 5" \
 484   "basic macro list"
 485
 486 gdb_test_no_output "macro define MACRO_TO_EXPAND(x) x" \
 487   "basic redefine, macro with args"
 488
 489 gdb_test "print MACRO_TO_EXPAND (7)" \
 490   " = 7" \
 491   "expansion of macro with arguments"
 492
 493 gdb_test_no_output "macro undef MACRO_TO_EXPAND" \
 494   "basic macro undef"
 495
 496 gdb_test "print MACRO_TO_EXPAND" \
 497     "No symbol \"MACRO_TO_EXPAND\" in current context\." \
 498     "print expression with macro after user undef."
 499
 500 # Regression test; this used to crash.
 501 gdb_test "macro define" \
 502     "usage: macro define.*" \
 503     "macro define with no arguments"
 504
 505 # Regression test; this used to crash.
 506 gdb_test "macro undef" \
 507     "usage: macro undef.*" \
 508     "macro undef with no arguments"
 509
 510 # Completion tests.
 511
 512 # The macro FIFTY_SEVEN is in scope at this point.
 513 send_gdb "p FIFTY_\t"
 514 gdb_expect  {
 515         -re "^p FIFTY_SEVEN $"\
 516             { send_gdb "\n"
 517               gdb_expect {
 518                       -re "^.* = 57.*$gdb_prompt $"\
 519                                         { pass "complete 'p FIFTY_SEVEN'"}
 520                       -re ".*$gdb_prompt $" { fail "complete 'p FIFTY_SEVEN'"}
 521                       timeout           {fail "(timeout) complete 'p FIFTY_SEVEN'"}
 522                      }
 523             }
 524         -re ".*$gdb_prompt $"       { fail "complete 'p FIFTY_SEVEN'" }
 525         timeout         { fail "(timeout) complete 'p FIFTY_SEVEN' 2" }
 526         }
 527
 528 # The macro TWENTY_THREE is not in scope.
 529 send_gdb "p TWENTY_\t"
 530 gdb_expect  {
 531         -re "^p TWENTY_\\\x07$"\
 532             { send_gdb "\n"
 533               gdb_expect {
 534                       -re "No symbol \"TWENTY_\" in current context\\..*$gdb_prompt $"\
 535                                         { pass "complete 'p TWENTY_'"}
 536                       -re ".*$gdb_prompt $" { fail "complete 'p TWENTY_'"}
 537                       timeout           {fail "(timeout) complete 'p TWENTY_'"}
 538                      }
 539             }
 540         -re ".*$gdb_prompt $"       { fail "complete 'p TWENTY_'" }
 541         timeout         { fail "(timeout) complete 'p TWENTY_' 2" }
 542         }
 543
 544 # The macro FORTY_EIGHT was undefined and thus is not in scope.
 545 send_gdb "p FORTY_\t"
 546 gdb_expect  {
 547         -re "^p FORTY_\\\x07$"\
 548             { send_gdb "\n"
 549               gdb_expect {
 550                       -re "No symbol \"FORTY_\" in current context\\..*$gdb_prompt $"\
 551                                         { pass "complete 'p FORTY_'"}
 552                       -re ".*$gdb_prompt $" { fail "complete 'p FORTY_'"}
 553                       timeout           {fail "(timeout) complete 'p FORTY_'"}
 554                      }
 555             }
 556         -re ".*$gdb_prompt $"       { fail "complete 'p FORTY_'" }
 557         timeout         { fail "(timeout) complete 'p FORTY_' 2" }
 558         }
 559
 560 gdb_test_no_output "macro define TWENTY_THREE 25" \
 561   "defining TWENTY_THREE"
 562
 563 # User-defined macros are always in scope.
 564 send_gdb "p TWENTY_\t"
 565 gdb_expect  {
 566         -re "^p TWENTY_THREE $"\
 567             { send_gdb "\n"
 568               gdb_expect {
 569                       -re "^.* = 25.*$gdb_prompt $"\
 570                                         { pass "complete 'p TWENTY_THREE'"}
 571                       -re ".*$gdb_prompt $" { fail "complete 'p TWENTY_THREE'"}
 572                       timeout           {fail "(timeout) complete 'p TWENTY_THREE'"}
 573                      }
 574             }
 575         -re ".*$gdb_prompt $"       { fail "complete 'p TWENTY_THREE'" }
 576         timeout         { fail "(timeout) complete 'p TWENTY_THREE' 2" }
 577         }
 578
 579 # Splicing tests.
 580
 581 gdb_test "macro expand SPLICE(x, y)" \
 582   "expands to: xy" \
 583   "basic macro splicing"
 584
 585 gdb_test_no_output "macro define robotinvasion 2010" \
 586   "define splice helper"
 587
 588 gdb_test "macro expand SPLICE(robot, invasion)" \
 589   "expands to: *2010" \
 590   "splicing plus expansion"
 591
 592 # Varargs tests.
 593
 594 gdb_test_no_output "macro define va_c99(...) varfunc (fixedarg, __VA_ARGS__)" \
 595   "define first varargs helper"
 596
 597 gdb_test_no_output "macro define va2_c99(x, y, ...) varfunc (fixedarg, x, y, __VA_ARGS__)" \
 598   "define second varargs helper"
 599
 600 gdb_test_no_output "macro define va_gnu(args...) varfunc (fixedarg, args)" \
 601   "define third varargs helper"
 602
 603 gdb_test_no_output "macro define va2_gnu(args...) varfunc (fixedarg, ## args)" \
 604   "define fourth varargs helper"
 605
 606 gdb_test "macro expand va_c99(one, two, three)" \
 607   "expands to: *varfunc \\(fixedarg, *one, two, three\\)" \
 608   "c99 varargs expansion"
 609
 610 gdb_test "macro expand va_c99()" \
 611   "expands to: *varfunc \\(fixedarg, *\\)" \
 612   "c99 varargs expansion without an argument"
 613
 614 gdb_test "macro expand va2_c99(one, two, three, four)" \
 615   "expands to: *varfunc \\(fixedarg, *one, two, three, four\\)" \
 616   "c99 varargs expansion, multiple formal arguments"
 617
 618 gdb_test "macro expand va_gnu(one, two, three, four)" \
 619   "expands to: *varfunc \\(fixedarg, *one, two, three, four\\)" \
 620   "gnu varargs expansion"
 621
 622 gdb_test "macro expand va_gnu()" \
 623   "expands to: *varfunc \\(fixedarg, *\\)" \
 624   "gnu varargs expansion without an argument"
 625
 626 gdb_test "macro expand va2_gnu()" \
 627   "expands to: *varfunc \\(fixedarg\\)" \
 628   "gnu varargs expansion special splicing without an argument"
 629
 630 # Stringification tests.
 631
 632 gdb_test_no_output "macro define str(x) #x" \
 633   "define stringification macro"
 634
 635 gdb_test_no_output "macro define maude 5" \
 636   "define first stringification helper"
 637
 638 gdb_test_no_output "macro define xstr(x) str(x)" \
 639   "define second stringification helper"
 640
 641 gdb_test "print str(5)" \
 642   " = \"5\"" \
 643   "simple stringify"
 644
 645 gdb_test "print str(hi bob)" \
 646   " = \"hi bob\"" \
 647   "stringify with one space"
 648
 649 gdb_test "print str(  hi  bob  )" \
 650   " = \"hi bob\"" \
 651   "stringify with many spaces"
 652
 653 gdb_test "print str(hi \"bob\")" \
 654   " = \"hi \\\\\"bob\\\\\"\"" \
 655   "stringify with quotes"
 656
 657 gdb_test "print str(hi \\bob\\)" \
 658   " = \"hi \\\\\\\\bob\\\\\\\\\"" \
 659   "stringify with backslashes"
 660
 661 gdb_test "print str(maude)" \
 662   " = \"maude\"" \
 663   "stringify without substitution"
 664
 665 gdb_test "print xstr(maude)" \
 666   " = \"5\"" \
 667   "stringify with substitution"
 668
 669 # Regression test for pp-number bug.
 670 gdb_test_no_output "macro define si_addr fields.fault.si_addr" \
 671   "define si_addr macro"
 672
 673 gdb_test "macro expand siginfo.si_addr" \
 674   "expands to: siginfo.fields.fault.si_addr" \
 675   "macro expand siginfo.si_addr"