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

   1 # Copyright 1998, 2000, 2001, 2002, 2003 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 $tracelevel
  24 }
  25
  26 #
  27 # Test debugging assembly level programs.
  28 # This file uses asmsrc[12].s for input.
  29 #
  30
  31 set prms_id 0
  32 set bug_id 0
  33
  34 set asm-arch ""
  35 set asm-flags ""
  36 set link-flags ""
  37
  38 switch -glob -- [istarget] {
  39     "alpha*-*-*" {
  40         set asm-arch alpha
  41         # ??? Won't work with ecoff systems like Tru64, but then we also
  42         # don't have any other -g flag that creates mdebug output.
  43         set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  44     }
  45     "*arm-*-*" {
  46         set asm-arch arm
  47     }
  48     "xscale-*-*" {
  49         set asm-arch arm
  50     }
  51     "d10v-*-*" {
  52         set asm-arch d10v
  53     }
  54     "s390-*-*" {
  55         set asm-arch s390
  56     }
  57     "s390x-*-*" {
  58         set asm-arch s390x
  59     }
  60     "x86_64-*-*" {
  61         set asm-arch x86_64
  62         set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  63     }
  64     "i\[3456\]86-*-*" {
  65         set asm-arch i386
  66         if [istarget "*-*-cygwin*"] then {
  67             set link-flags "--entry _start"
  68         }
  69     }
  70     "m32r*-*" {
  71         set asm-arch m32r
  72     }
  73     "m6811-*-*" {
  74         set asm-arch m68hc11
  75         set asm-flags "-mshort-double -m68hc11 -gdwarf2 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  76     }
  77     "m6812-*-*" {
  78         set asm-arch m68hc11
  79         set asm-flags "-mshort-double -m68hc12 -gdwarf2 --no-warn -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  80     }
  81     "mips*-*" {
  82         set asm-arch mips
  83     }
  84     "powerpc*-*" {
  85         set asm-arch powerpc
  86     }
  87     "sparc-*-*" {
  88         set asm-arch sparc
  89     }
  90     "sparc64-*-*" {
  91         set asm-arch sparc64
  92         set asm-flags "-xarch=v9 -gstabs -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  93     }
  94     "xstormy16-*-*" {
  95         set asm-arch xstormy16
  96         set asm-flags "-gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
  97     }
  98     "v850-*-*" {
  99         set asm-arch v850
 100         set gdb_wrapper_initialized 1
 101     }
 102 }
 103
 104 if { "${asm-arch}" == "" } {
 105     gdb_suppress_entire_file "Assembly source test -- not implemented for this target."
 106 }
 107
 108 # Watch out, we are invoking the assembler, but the testsuite sets multilib
 109 # switches according to compiler syntax.  If we pass these options straight
 110 # to the assembler, they won't always make sense.  If we don't pass them to
 111 # the assembler, the final link will complain that the object files were
 112 # built with different defaults.  So no matter what we do, we lose.  We may as
 113 # well get out of this test sooner rather than later.
 114 set dest [target_info name]
 115 if [board_info $dest exists multilib_flags] {
 116         set multilib_flags [board_info $dest multilib_flags]
 117         if { "${multilib_flags}" != "" } {
 118            gdb_suppress_entire_file "Assembly source test -- multilibs not supported by this test."
 119            return;
 120          }
 121 }
 122
 123 set testfile "asm-source"
 124 set binfile ${objdir}/${subdir}/${testfile}
 125 set srcfile1 asmsrc1.s
 126 set srcfile2 asmsrc2.s
 127
 128 remote_exec build "rm -f ${subdir}/arch.inc"
 129 remote_download host ${srcdir}/${subdir}/${asm-arch}.inc ${subdir}/arch.inc
 130
 131 if { "${asm-flags}" == "" } {
 132     #set asm-flags "-Wa,-gstabs,-I${srcdir}/${subdir},-I${objdir}/${subdir}"
 133     set asm-flags "-gstabs -I${srcdir}/${subdir} -I${objdir}/${subdir}"
 134 }
 135
 136 if {[target_assemble ${srcdir}/${subdir}/${srcfile1} asmsrc1.o "${asm-flags}"] != ""} then {
 137      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
 138 }
 139 if {[target_assemble ${srcdir}/${subdir}/${srcfile2} asmsrc2.o "${asm-flags}"] != ""} then {
 140      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
 141 }
 142
 143 set opts "debug ldflags=-nostartfiles"
 144 foreach i ${link-flags} {
 145     append opts " ldflags=$i"
 146 }
 147 if { [gdb_compile "asmsrc1.o asmsrc2.o" "${binfile}" executable $opts] != "" } {
 148      gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
 149 }
 150
 151 remote_exec build "mv asmsrc1.o asmsrc2.o ${objdir}/${subdir}"
 152
 153
 154 gdb_start
 155 gdb_reinitialize_dir $srcdir/$subdir
 156 gdb_load ${binfile}
 157
 158 #
 159 # Run to `main' where we begin our tests.
 160 #
 161
 162 if ![runto_main] then {
 163     gdb_suppress_tests
 164 }
 165
 166 # Execute the `f' command and see if the result includes source info.
 167 gdb_test "f" "asmsrc1\[.\]s:29.*several_nops" "f at main"
 168
 169 # See if we properly `next' over a macro with several insns.
 170 gdb_test "n" "33\[      \]*.*foo2" "next over macro"
 171
 172 # See if we can properly `step' into a subroutine call.
 173 gdb_test "s" "8\[       \]*.*" "step into foo2"
 174
 175 # Test 'info target', and incidentally capture the entry point address.
 176 set entry_point 0
 177 send_gdb "info target\n"
 178 gdb_expect {
 179     -re "Symbols from .*asm-source.*Entry point: 0x(\[01232456789abcdefABCDEF\]+).*$gdb_prompt $" {
 180         set entry_point $expect_out(1,string)
 181         pass "info target"
 182     }
 183     -re ".*$gdb_prompt $" {
 184         fail "info target"
 185     }
 186     timeout {
 187         fail "info target (timeout)"
 188     }
 189 }
 190
 191 # Capture the start symbol (may be '_start' or 'start')
 192 set entry_symbol ""
 193 send_gdb "info symbol 0x$entry_point\n"
 194 gdb_expect {
 195     -re "info symbol 0x$entry_point\[\r\n\]+(\[^\r\n\]*) in section .*$gdb_prompt $" {
 196         # We match the echoed `info symbol' command here, to help us
 197         # reliably identify the beginning of the start symbol in the
 198         # command's output.  You might think we could just use '^' to
 199         # start matching at the beginning of the line, but
 200         # unfortunately, in Expect, '^' matches the beginning of the
 201         # input that hasn't been matched by any expect clause yet.  If
 202         # every expect clause consumes a complete line, along with its
 203         # terminating CR/LF, this is equivalent to the beginning of a
 204         # line.  But expect clauses that end with `.*' will consume as
 205         # much as happened to arrive from the TTY --- exactly where
 206         # they leave you depends on inter-process timing.  :(
 207         set entry_symbol $expect_out(1,string)
 208         pass "info symbol"
 209     }
 210     -re ".*$gdb_prompt $" {
 211         fail "info symbol"
 212     }
 213     timeout {
 214         fail "info symbol (timeout)"
 215     }
 216 }
 217
 218 # Now try a 'list' from the other source file.
 219 gdb_test "list $entry_symbol" ".*gdbasm_startup.*" "list"
 220
 221 # Now try a source file search
 222 gdb_test "search A routine for foo2 to call" \
 223         "40\[ \t\]+comment \"A routine for foo2 to call.\"" "search"
 224
 225 # See if `f' prints the right source file.
 226 gdb_test "f" ".*asmsrc2\[.\]s:8.*" "f in foo2"
 227
 228 # `next' one insn (or macro) to set up our stackframe (for the following bt).
 229 gdb_test "n" "12\[      \]*.*foo3" "n in foo2"
 230
 231 # See if a simple `bt' prints the right source files and
 232 # doesn't fall off the stack.
 233
 234 gdb_test "bt 10" \
 235         "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33(.*\#2.*start\[^\r\n\]*)?" \
 236         "bt ALL in foo2"
 237
 238 # See if a capped `bt' prints the right source files.
 239 gdb_test "bt 2" "\#0.*foo2.*asmsrc2\[.\]s:12.*\#1.*main.*asmsrc1\[.\]s:33.*" "bt 2 in foo2"
 240
 241 # Step into another subroutine which lives back in the first source file.
 242 gdb_test "s" "" "s 2"
 243
 244 # Next over insns to set up the stack frame.
 245 gdb_test "n" "" "n 2"
 246
 247 # Now see if a capped `bt' is correct.
 248 gdb_test "bt 3" "\#0.*foo3.*asmsrc1\[.\]s:45.*\#1.*foo2.*asmsrc2\[.\]s:12.*\#2.*main.*asmsrc1\[.\]s:33.*" "bt 3 in foo3"
 249
 250 # Try 'info source' from asmsrc1.s
 251 gdb_test "info source" \
 252         "Current source file is .*asmsrc1.s.*Source language is asm.*" \
 253         "info source asmsrc1.s"
 254
 255 # Try 'finishing' from foo3
 256 gdb_test "finish" "Run till exit from.*\[\r\n\]13\[ \t\]+gdbasm_call foo3" \
 257         "finish from foo3"
 258
 259 # Try 'info source' from asmsrc2.s
 260 gdb_test "info source" \
 261         "Current source file is .*asmsrc2.s.*Source language is asm.*" \
 262         "info source asmsrc2.s"
 263
 264 # Try 'info sources'.  This can produce a lot of output on systems
 265 # with dynamic linking, where the system's shared libc was compiled
 266 # with debugging info; for example, on Linux, this produces 47kb of
 267 # output.  So we consume it as we go.
 268 send_gdb "info sources\n"
 269 set seen_asmsrc_1 0
 270 set seen_asmsrc_2 0
 271 gdb_expect {
 272     -re "^\[^,\]*asmsrc1.s(, |\[\r\n\]+)" {
 273         set seen_asmsrc_1 1
 274         exp_continue
 275     }
 276     -re "^\[^,\]*asmsrc2.s(, |\[\r\n\]+)" {
 277         set seen_asmsrc_2 1
 278         exp_continue
 279     }
 280     -re ", " {
 281         exp_continue
 282     }
 283     -re "$gdb_prompt $" {
 284         if {$seen_asmsrc_1 && $seen_asmsrc_2} {
 285             pass "info sources"
 286         } else {
 287             fail "info sources"
 288         }
 289     }
 290     timeout {
 291             fail "info sources (timeout)"
 292     }
 293 }
 294
 295
 296 # Try 'info line'
 297 gdb_test "info line" \
 298         "Line 13 of.*asmsrc2.s.*starts at.*<foo2+.*> and ends at.*<foo2+.*>." \
 299         "info line"
 300
 301 # Try 'nexting' over next call to foo3
 302 gdb_test "next" "17\[ \t\]+gdbasm_leave" "next over foo3"
 303
 304 # Try 'return' from foo2
 305 gdb_test "return" "\#0  main .*37\[ \t\]+gdbasm_exit0" "return from foo2" \
 306         "Make (foo2|selected stack frame) return now\?.*" "y"
 307
 308 # Disassemble something, check the output
 309 proc test_dis { command var } {
 310     global gdb_prompt
 311     send_gdb "${command}\n"
 312     gdb_expect {
 313         -re "${var}.*:.*Cannot access" {
 314             # The "disassembler" was only accessing the local
 315             # executable and that would cause attempts to disassemble
 316             # variables to fail (memory not valid).
 317             fail "${command} (memory read error)"
 318         }
 319         -re "${var}.*:.*${gdb_prompt}" {
 320             pass "${command}"
 321         }
 322         timeout {
 323             fail "${command} (timeout)"
 324         }
 325     }
 326 }
 327
 328 # See if we can look at a global variable, three ways
 329 gdb_test "print globalvar" ".* = 11" "look at global variable"
 330 test_dis "x/i globalvar" "globalvar"
 331 test_dis "disassem &globalvar &globalvar+1" "globalvar"
 332
 333 # See if we can look at a static variable, three ways
 334 gdb_test "print staticvar" ".* = 5" "look at static variable"
 335 test_dis "x/i &staticvar" "staticvar"
 336 test_dis "disassem &staticvar &staticvar+1" "staticvar"
 337
 338 # See if we can look at a static function
 339 gdb_test "disassem foostatic" ".*<foostatic\\+0>:.*End of assembler dump." \
 340         "look at static function"
 341
 342 remote_exec build "rm -f ${subdir}/arch.inc"