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 $tracelevel
  24 }
  25
  26 #
  27 # Test debugging assembly level programs.
  28 # This file uses asmsrc[12].s for input.
  29 #
  30
  31 set prms_id 0
  32 set bug_id 0
  33
  34 set asm-arch ""
  35 set asm-note "empty"
  36 set asm-flags ""
  37 set link-flags "--entry _start"
  38
  39 switch -glob -- [istarget] {
  40     "alpha*-*-*" {
  41         set asm-arch alpha
  42         # ??? Won't work with ecoff systems like Tru64, but then we also
  43         # don't have any other -g flag that creates mdebug output.
  44         set asm-flags "-gdwarf2 -no-mdebug -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  45     }
  46     "*arm-*-*" {
  47         set asm-arch arm
  48     }
  49     "xscale-*-*" {
  50         set asm-arch arm
  51     }
  52     "d10v-*-*" {
  53         set asm-arch d10v
  54     }
  55     "frv-*-*" {
  56         set asm-arch frv
  57     }
  58     "s390-*-*" {
  59         set asm-arch s390
  60     }
  61     "s390x-*-*" {
  62         set asm-arch s390x
  63     }
  64     "x86_64-*-*" {
  65         set asm-arch x86_64
  66         set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  67     }
  68     "i\[3456\]86-*-*" {
  69         set asm-arch i386
  70     }
  71     "m32r*-*" {
  72         set asm-arch m32r
  73         append link-flags " -Wl,--whole-archive -lgloss -Wl,--no-whole-archive"
  74     }
  75     "m6811-*-*" {
  76         set asm-arch m68hc11
  77         set asm-flags "-mshort-double -m68hc11 -gdwarf2 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  78     }
  79     "m6812-*-*" {
  80         set asm-arch m68hc11
  81         set asm-flags "-mshort-double -m68hc12 -gdwarf2 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  82     }
  83     "mips*-*" {
  84         set asm-arch mips
  85     }
  86     "powerpc*-*" {
  87         set asm-arch powerpc
  88     }
  89     "sh*-*-*" {
  90         set asm-arch sh
  91         set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  92     }
  93     "sparc-*-*" {
  94         set asm-arch sparc
  95     }
  96     "sparc64-*-*" {
  97         set asm-arch sparc64
  98         set asm-flags "-xarch=v9 -gstabs -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  99     }
 100     "xstormy16-*-*" {
 101         set asm-arch xstormy16
 102         set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
 103     }
 104     "v850-*-*" {
 105         set asm-arch v850
 106         set gdb_wrapper_initialized 1
 107     }
 108     "m68k-*-*" {
 109         set asm-arch m68k
 110     }
 111     "ia64-*-*" {
 112         set asm-arch ia64
 113         set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
 114     }
 115 }
 116
 117 if { "${asm-arch}" == "" } {
 118     gdb_suppress_entire_file "Assembly source test -- not implemented for this target."
 119 }
 120
 121 # On FreeBSD and NetBSD, the final link will fail because of
 122 # unresolved symbols.  It turns out that libc.so references symbols
 123 # that are normally provided by crt1.o, which isn't linked in since we
 124 # specify -nostartfiles.  Using -nostdlib doesn't help since
 125 # target_compile automatically adds -lm.  Linking statically avoids
 126 # this mess.
 127 #
 128 # On Solaris, linking dynamically results in a binary that dumps core.
 129 #
 130 if {[istarget "*-*-freebsd*"] || [istarget "*-*-netbsd*"]
 131     || [istarget "*-*-solaris2*"]} then {
 132     append link-flags " -static"
 133 }
 134
 135 # On NetBSD/ELF we need a special NetBSD-identifying note section.
 136 if { [istarget "*-*-netbsdelf*"]
 137      || [istarget "x86_64-*-netbsd*"] } then {
 138     set asm-note "netbsd"
 139 }
 140
 141 # Watch out, we are invoking the assembler, but the testsuite sets multilib
 142 # switches according to compiler syntax.  If we pass these options straight
 143 # to the assembler, they won't always make sense.  If we don't pass them to
 144 # the assembler, the final link will complain that the object files were
 145 # built with different defaults.  So no matter what we do, we lose.  We may as
 146 # well get out of this test sooner rather than later.
 147 set dest [target_info name]
 148 if [board_info $dest exists multilib_flags] {
 149         set multilib_flags [board_info $dest multilib_flags]
 150         if { "${multilib_flags}" != "" } {
 151            gdb_suppress_entire_file "Assembly source test -- multilibs not supported by this test."
 152            return;
 153          }
 154 }
 155
 156 set testfile "asm-source"
 157 set binfile ${objdir}/${subdir}/${testfile}
 158 set srcfile1 asmsrc1.s
 159 set srcfile2 asmsrc2.s
 160
 161 remote_exec build "rm -f ${subdir}/arch.inc"
 162 remote_download host ${srcdir}/${subdir}/${asm-arch}.inc ${subdir}/arch.inc
 163 remote_exec build "rm -f ${subdir}/note.inc"
 164 remote_download host ${srcdir}/${subdir}/${asm-note}.inc ${subdir}/note.inc
 165
 166 if { "${asm-flags}" == "" } {
 167     #set asm-flags "-Wa,-gstabs,-I${srcdir}/${subdir},-I${objdir}/${subdir}"
 168     set asm-flags "-gstabs -I${srcdir}/${subdir} -I${objdir}/${subdir}"
 169 }
 170
 171 if {[target_assemble ${srcdir}/${subdir}/${srcfile1} asmsrc1.o "${asm-flags}"] != ""} then {
 172      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
 173 }
 174 if {[target_assemble ${srcdir}/${subdir}/${srcfile2} asmsrc2.o "${asm-flags}"] != ""} then {
 175      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
 176 }
 177
 178 set opts "debug ldflags=-nostartfiles"
 179 foreach i ${link-flags} {
 180     append opts " ldflags=$i"
 181 }
 182 if { [gdb_compile "asmsrc1.o asmsrc2.o" "${binfile}" executable $opts] != "" } {
 183      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
 184 }
 185
 186 remote_exec build "mv asmsrc1.o asmsrc2.o ${objdir}/${subdir}"
 187
 188
 189 gdb_start
 190 gdb_reinitialize_dir $srcdir/$subdir
 191 gdb_load ${binfile}
 192
 193 #
 194 # Run to `main' where we begin our tests.
 195 #
 196
 197 if ![runto_main] then {
 198     gdb_suppress_tests
 199 }
 200
 201 # Execute the `f' command and see if the result includes source info.
 202 gdb_test "f" "asmsrc1\[.\]s:29.*several_nops" "f at main"
 203
 204 # See if we properly `next' over a macro with several insns.
 205 gdb_test "n" "33\[      \]*.*foo2" "next over macro"
 206
 207 # See if we can properly `step' into a subroutine call.
 208 gdb_test "s" "8\[       \]*.*" "step into foo2"
 209
 210 # Test 'info target', and incidentally capture the entry point address.
 211 set entry_point 0
 212 send_gdb "info target\n"
 213 gdb_expect {
 214     -re "Symbols from .*asm-source.*Entry point: 0x(\[01232456789abcdefABCDEF\]+).*$gdb_prompt $" {
 215         set entry_point $expect_out(1,string)
 216         pass "info target"
 217     }
 218     -re ".*$gdb_prompt $" {
 219         fail "info target"
 220     }
 221     timeout {
 222         fail "info target (timeout)"
 223     }
 224 }
 225
 226 # Capture the start symbol (may be '_start' or 'start')
 227 set entry_symbol ""
 228 send_gdb "info symbol 0x$entry_point\n"
 229 gdb_expect {
 230     -re "info symbol 0x$entry_point\[\r\n\]+(\[^\r\n\]*) in section .*$gdb_prompt $" {
 231         # We match the echoed `info symbol' command here, to help us
 232         # reliably identify the beginning of the start symbol in the
 233         # command's output.  You might think we could just use '^' to
 234         # start matching at the beginning of the line, but
 235         # unfortunately, in Expect, '^' matches the beginning of the
 236         # input that hasn't been matched by any expect clause yet.  If
 237         # every expect clause consumes a complete line, along with its
 238         # terminating CR/LF, this is equivalent to the beginning of a
 239         # line.  But expect clauses that end with `.*' will consume as
 240         # much as happened to arrive from the TTY --- exactly where
 241         # they leave you depends on inter-process timing.  :(
 242         set entry_symbol $expect_out(1,string)
 243         pass "info symbol"
 244     }
 245     -re ".*$gdb_prompt $" {
 246         fail "info symbol"
 247     }
 248     timeout {
 249         fail "info symbol (timeout)"
 250     }
 251 }
 252
 253 # Now try a 'list' from the other source file.
 254 gdb_test "list $entry_symbol" ".*gdbasm_startup.*" "list"
 255
 256 # Now try a source file search
 257 gdb_test "search A routine for foo2 to call" \
 258         "40\[ \t\]+comment \"A routine for foo2 to call.\"" "search"
 259
 260 # See if `f' prints the right source file.
 261 gdb_test "f" ".*asmsrc2\[.\]s:8.*" "f in foo2"
 262
 263 # `next' one insn (or macro) to set up our stackframe (for the following bt).
 264 gdb_test "n" "12\[      \]*.*foo3" "n in foo2"
 265
 266 # See if a simple `bt' prints the right source files and
 267 # doesn't fall off the stack.
 268
 269 gdb_test "bt 10" \
 270         "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33" \
 271         "bt ALL in foo2"
 272
 273 # See if a capped `bt' prints the right source files.
 274 gdb_test "bt 2" "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33.*" "bt 2 in foo2"
 275
 276 # Step into another subroutine which lives back in the first source file.
 277 gdb_test "s" "" "s 2"
 278
 279 # Next over insns to set up the stack frame.
 280 gdb_test "n" "" "n 2"
 281
 282 # Now see if a capped `bt' is correct.
 283 gdb_test "bt 3" "\#0.*foo3.*asmsrc1\[.\]s:45.*\#1.*foo2.*asmsrc2\[.\]s:12.*\#2.*main.*asmsrc1\[.\]s:33.*" "bt 3 in foo3"
 284
 285 # Try 'info source' from asmsrc1.s
 286 gdb_test "info source" \
 287         "Current source file is .*asmsrc1.s.*Source language is asm.*" \
 288         "info source asmsrc1.s"
 289
 290 # Try 'finishing' from foo3
 291 gdb_test "finish" "Run till exit from.*\[\r\n\]13\[ \t\]+gdbasm_call foo3" \
 292         "finish from foo3"
 293
 294 # Try 'info source' from asmsrc2.s
 295 gdb_test "info source" \
 296         "Current source file is .*asmsrc2.s.*Source language is asm.*" \
 297         "info source asmsrc2.s"
 298
 299 # Try 'info sources'.  This can produce a lot of output on systems
 300 # with dynamic linking, where the system's shared libc was compiled
 301 # with debugging info; for example, on Linux, this produces 47kb of
 302 # output.  So we consume it as we go.
 303 send_gdb "info sources\n"
 304 set seen_asmsrc_1 0
 305 set seen_asmsrc_2 0
 306 gdb_expect {
 307     -re "^\[^,\]*asmsrc1.s(, |\[\r\n\]+)" {
 308         set seen_asmsrc_1 1
 309         exp_continue
 310     }
 311     -re "^\[^,\]*asmsrc2.s(, |\[\r\n\]+)" {
 312         set seen_asmsrc_2 1
 313         exp_continue
 314     }
 315     -re ", " {
 316         exp_continue
 317     }
 318     -re "$gdb_prompt $" {
 319         if {$seen_asmsrc_1 && $seen_asmsrc_2} {
 320             pass "info sources"
 321         } else {
 322             fail "info sources"
 323         }
 324     }
 325     timeout {
 326             fail "info sources (timeout)"
 327     }
 328 }
 329
 330
 331 # Try 'info line'
 332 gdb_test "info line" \
 333         "Line 13 of.*asmsrc2.s.*starts at.*<foo2+.*> and ends at.*<foo2+.*>." \
 334         "info line"
 335
 336 # Try 'nexting' over next call to foo3
 337 gdb_test "next" "17\[ \t\]+gdbasm_leave" "next over foo3"
 338
 339 # Try 'return' from foo2
 340 gdb_test "return" "\#0  main .*37\[ \t\]+gdbasm_exit0" "return from foo2" \
 341         "Make (foo2|selected stack frame) return now\?.*" "y"
 342
 343 # Disassemble something, check the output
 344 proc test_dis { command var } {
 345     global gdb_prompt
 346     send_gdb "${command}\n"
 347     gdb_expect {
 348         -re "${var}.*:.*(Cannot access|Bad address)" {
 349             # The "disassembler" was only accessing the local
 350             # executable and that would cause attempts to disassemble
 351             # variables to fail (memory not valid).
 352             fail "${command} (memory read error)"
 353         }
 354         -re "${var}.*:.*${gdb_prompt}" {
 355             pass "${command}"
 356         }
 357         timeout {
 358             fail "${command} (timeout)"
 359         }
 360     }
 361 }
 362
 363 # See if we can look at a global variable, three ways
 364 gdb_test "print globalvar" ".* = 11" "look at global variable"
 365 test_dis "x/i &globalvar" "globalvar"
 366 test_dis "disassem &globalvar &globalvar+1" "globalvar"
 367
 368 # See if we can look at a static variable, three ways
 369 gdb_test "print staticvar" ".* = 5" "look at static variable"
 370 test_dis "x/i &staticvar" "staticvar"
 371 test_dis "disassem &staticvar &staticvar+1" "staticvar"
 372
 373 # See if we can look at a static function
 374 gdb_test "disassem foostatic" ".*<foostatic\\+0>:.*End of assembler dump." \
 375         "look at static function"
 376
 377 remote_exec build "rm -f ${subdir}/arch.inc"
 378 remote_exec build "rm -f ${subdir}/note.inc"