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