gdb/testsuite/gdb.opt/inline-cmds.exp

   1 # Copyright 2008 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 3 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, see <http://www.gnu.org/licenses/>.
  15
  16 set testfile "inline-cmds"
  17 set srcfile "${testfile}.c"
  18 set srcfile2 "inline-markers.c"
  19 set fullsrcfile "${srcdir}/${subdir}/${srcfile}"
  20 set fullsrcfile2 "${srcdir}/${subdir}/${srcfile2}"
  21 set sources [list ${fullsrcfile} ${fullsrcfile2}]
  22 set binfile ${objdir}/${subdir}/${testfile}
  23
  24 if  { [gdb_compile $sources ${binfile} \
  25            executable {debug optimize=-O2}] != "" } {
  26     untested inline-cmds.exp
  27     return -1
  28 }
  29
  30 gdb_exit
  31 gdb_start
  32 gdb_reinitialize_dir $srcdir/$subdir
  33 gdb_load ${binfile}
  34
  35 gdb_test "set listsize 1" ""
  36
  37 runto_main
  38
  39 get_compiler_info $binfile
  40 get_debug_format
  41 if { [skip_inline_frame_tests] } {
  42     untested inline-cmds.exp
  43     return
  44 }
  45
  46 # First, check that the things we expected to be inlined really were,
  47 # and those that shouldn't be weren't.
  48 set line1 [gdb_get_line_number "set breakpoint 1 here" ${srcfile2}]
  49 gdb_breakpoint $srcfile2:$line1
  50 set line2 [gdb_get_line_number "set breakpoint 2 here" ${srcfile2}]
  51 gdb_breakpoint $srcfile2:$line2
  52
  53 gdb_test "continue" ".*set breakpoint 1 here.*" "continue to bar (1)"
  54 gdb_test "backtrace" "#0  bar.*#1  .*func1.*#2  .*main.*" \
  55     "backtrace from bar (1)"
  56 gdb_test "up" "#1  .*func1.*" "up from bar (1)"
  57 gdb_test "info frame" ".*inlined into frame.*" "func1 inlined (1)"
  58
  59 gdb_test "continue" ".*set breakpoint 1 here.*" "continue to bar (2)"
  60 gdb_test "backtrace" "#0  bar.*#1  .*func1.*#2  .*func2.*#3  .*main.*" \
  61     "backtrace from bar (2)"
  62 gdb_test "up" "#1  .*func1.*" "up from bar (2)"
  63 gdb_test "info frame" ".*inlined into frame.*" "func1 inlined (2)"
  64 gdb_test "up" "#2  .*func2.*" "up from func1 (2)"
  65 gdb_test "info frame" ".*inlined into frame.*" "func2 inlined (2)"
  66
  67 gdb_test "continue" ".*set breakpoint 2 here.*" "continue to marker"
  68 gdb_test "backtrace" "#0  marker.*#1  .*main.*" "backtrace from marker"
  69 gdb_test "info frame" ".*called by frame.*" "marker not inlined"
  70
  71 # Next, check that we can next over inlined functions.  We should not end up
  72 # inside any of them.
  73 delete_breakpoints
  74 runto_main
  75
  76 # The lines before the first inlined call.
  77 set first "x = 7|y = 8"
  78
  79 # Some extra lines that end up in our stepping due to code motion.
  80 set opt "start of main|result = 0"
  81
  82 # We start this test with a "list" instead of a "next", in case the
  83 # first non-prologue instruction in main comes from the inlined function.
  84 set msg "next over inlined functions"
  85 gdb_test_multiple "list" $msg {
  86     -re "($first|result = func1|result = func2|$opt).*$gdb_prompt $" {
  87         send_gdb "next\r"
  88         exp_continue
  89     }
  90     -re "marker \\\(\\\);\r\n$gdb_prompt $" {
  91         pass $msg
  92     }
  93 }
  94
  95 # Check that when next shows the call of func1, it has not happened yet.
  96 runto_main
  97
  98 # Like the return value of gdb_test: -1 something is wrong, 0 passed, 1 failed.
  99 set bt_test -1
 100 set x_test -1
 101 set func1_step -1
 102
 103 set last_was_func1_call 0
 104 set msg "next past inlined func1"
 105 gdb_test_multiple "list" $msg {
 106     -re "($first|$opt).*$gdb_prompt $" {
 107         set last_was_func1_call 0
 108         send_gdb "next\r"
 109         exp_continue
 110     }
 111     -re "result = func1 \\\(\\\);\r\n$gdb_prompt $" {
 112         # Check whether x has been set.  If 0, we may be doing something
 113         # else associated with this line besides the inlined call - e.g.
 114         # loading the address of result.  If 7, we may be at the call site.
 115         # If 15, though, we might be past the call and back at the store to
 116         # result - that's OK, as long as we weren't just here (see
 117         # func1_step above).
 118         set x_val -1
 119         gdb_test_multiple "print x" "" {
 120             -re "\\\$$decimal = (\[0-9\]*)\r\n$gdb_prompt $" {
 121                 set x_val $expect_out(1,string)
 122             }
 123             -re "$gdb_prompt $" { }
 124         }
 125         if { $x_val == 0 || $x_val == 7 } {
 126             if { $x_test != 1 } {
 127                 set x_test 0
 128             }
 129         } elseif { $x_val == 15 } {
 130             if { $func1_step == -1 } {
 131                 # We passed func1 without stopping at the call site.
 132                 set x_test 1
 133             }
 134         } else {
 135             set x_test 1
 136         }
 137
 138         # func1 should not show up on backtraces if we are at its call
 139         # site.
 140         if { $bt_test != 1 } {
 141             set bt_test [gdb_test "backtrace" "#0  \[^#]*main.*" ""]
 142         }
 143
 144         # When we next over func1, we should not return to the same
 145         # line.  But we might go past the line, according to source
 146         # code order, and then come back.  A valid but odd layout is
 147         # body of func1, load result's address into a register using
 148         # the source location of "result = 0" several lines down, and
 149         # then return to this line for the store.  GCC 4.3 does that
 150         # on ARM.
 151         if { $last_was_func1_call } {
 152             set func1_step 1
 153         } elseif { $func1_step == -1 } {
 154             set func1_step 0
 155         }
 156         set last_was_func1_call 1
 157
 158         send_gdb "next\r"
 159         exp_continue
 160     }
 161
 162     -re "result = func2 \\\(\\\);\r\n$gdb_prompt $" {
 163         pass $msg
 164     }
 165 }
 166
 167 if { $x_test == 0 } {
 168     pass "print x before func1"
 169 } else {
 170     fail "print x before func1"
 171 }
 172
 173 if { $bt_test == 0 } {
 174     pass "backtrace does not include func1"
 175 } else {
 176     fail "backtrace does not include func1"
 177 }
 178
 179 if { $bt_test == 0 } {
 180     pass "stepped over call to func1"
 181 } else {
 182     fail "stepped over call to func1"
 183 }
 184
 185 # Next, check that we can single step into inlined functions.  We should always
 186 # "stop" at the call sites before entering them.
 187 runto_main
 188
 189 set msg "step into func1"
 190 set saw_call_site 0
 191 gdb_test_multiple "list" $msg {
 192     -re "($first|$opt).*$gdb_prompt $" {
 193         send_gdb "step\r"
 194         exp_continue
 195     }
 196     -re "result = func1.*$gdb_prompt $" {
 197         set saw_call_site 1
 198         send_gdb "step\r"
 199         exp_continue
 200     }
 201     -re "func1 \\\(\\\) at .*\r\n$decimal.*bar \\\(\\\);\r\n$gdb_prompt $" {
 202         if { $saw_call_site } {
 203             pass $msg
 204         } else {
 205             fail $msg
 206         }
 207     }
 208 }
 209
 210 # Check finish out of an inlined function.
 211 set msg "finish from func1"
 212 gdb_test_multiple "finish" $msg {
 213     -re "result = func1 \\\(\\\);\r\n$gdb_prompt $" {
 214         pass $msg
 215     }
 216     -re "($first|$opt).*$gdb_prompt $" {
 217         # Whoops.  We finished, but ended up back at an earlier line.  Keep
 218         # trying.
 219         send_gdb "step\r"
 220         exp_continue
 221     }
 222     -re "func1 \\\(\\\) at .*\r\n$decimal.*bar \\\(\\\);\r\n$gdb_prompt $" {
 223         send_gdb "finish\r"
 224         exp_continue
 225     }
 226 }
 227
 228 # Test some corner cases involving consecutive inlined functions.
 229 set line3 [gdb_get_line_number "set breakpoint 3 here"]
 230 gdb_breakpoint $line3
 231 gdb_continue_to_breakpoint "consecutive func1"
 232
 233 gdb_test "next" ".*func1 .*first call.*" "next to first func1"
 234 set msg "next to second func1"
 235 gdb_test_multiple "next" $msg {
 236     -re ".*func1 .*second call.*$gdb_prompt $" {
 237         pass $msg
 238     }
 239     -re ".*marker .*$gdb_prompt $" {
 240         # This assembles to two consecutive call instructions.
 241         # Both appear to be at the same line, because they're
 242         # in the body of the same inlined function.  This is
 243         # reasonable for the line table.  GDB should take the
 244         # containing block and/or function into account when
 245         # deciding how far to step.  The single line table entry
 246         # is actually two consecutive instances of the same line.
 247         kfail gdb/NNNN $msg
 248     }
 249 }
 250
 251 # It is easier when the two inlined functions are not on the same line.
 252 set line4 [gdb_get_line_number "set breakpoint 4 here"]
 253 gdb_breakpoint $line4
 254 gdb_continue_to_breakpoint "func1 then func3"
 255
 256 gdb_test "next" ".*func1 \\\(\\\);" "next to func1 before func3"
 257 gdb_test "next" ".*func3 \\\(\\\);" "next to func3"
 258
 259 # Test finishing out of one thing and into another.
 260 set line5 [gdb_get_line_number "set breakpoint 5 here"]
 261 gdb_breakpoint $line5
 262 gdb_continue_to_breakpoint "finish into func1"
 263
 264 gdb_test "next" ".*marker \\\(\\\);" "next to finish marker"
 265 gdb_test "step" ".*set breakpoint 2 here.*" "step into finish marker"
 266 gdb_test "finish" "func1 \\\(\\\);" "finish from marker to func1"
 267
 268 gdb_test "step" "bar \\\(\\\);" "step into func1 for finish"
 269 gdb_test "finish" "func3 \\\(\\\);" "finish from func1 to func3"
 270
 271 # Test a deeper call stack.
 272 set line6 [gdb_get_line_number "set breakpoint 6 here"]
 273 gdb_breakpoint $line6
 274 gdb_continue_to_breakpoint "before the outer_inline call"
 275 gdb_test "step" "marker \\\(\\\) at .*" "reach 1 the outer_inline call"
 276 gdb_test "finish" "main \\\(\\\) at .*outer_inline2 \\\(\\\);" "reach outer_inline2"
 277 gdb_test "bt" "#0  main.*" "backtrace at main of outer_inline"
 278 gdb_test "step" "outer_inline2 \\\(\\\) at .*" "enter outer_inline2"
 279 gdb_test "bt" "#0  outer_inline2.*#1  main.*" "backtrace at outer_inline2"
 280 gdb_test "step" "outer_inline1 \\\(\\\) at .*" "enter outer_inline1 from outer_inline2"
 281
 282 set msg "backtrace at outer_inline1"
 283 gdb_test_multiple "bt" $msg {
 284     -re "#0  outer_inline1.*#1  outer_inline2.*#2  main.*$gdb_prompt $" {
 285         pass $msg
 286     }
 287     -re "#0  $hex in outer_inline1.*#1  outer_inline2.*#2  main.*$gdb_prompt $" {
 288         # Binutils PR gas/6717.  Gas moves .loc past .p2align and the
 289         # leading nop of the inlined call appears to be on the same line
 290         # as main's call to marker.
 291         xfail $msg
 292         gdb_test "step" "noinline \\\(\\\);" "step to call of noinline"
 293     }
 294 }
 295
 296 gdb_test "step" "noinline \\\(\\\) at .*" "enter noinline from outer_inline1"
 297 gdb_test "bt" "#0  noinline.*#1  .*outer_inline1.*#2  .*outer_inline2.*#3  main.*" "backtrace at noinline from outer_inline1"
 298 gdb_test "step" "inlined_fn \\\(\\\) at .*" "enter inlined_fn from noinline"
 299 gdb_test "bt" "#0  inlined_fn.*#1  noinline.*#2  .*outer_inline1.*#3  .*outer_inline2.*#4  main.*" "backtrace at inlined_fn from noinline"
 300 gdb_test "info frame" ".*inlined into frame.*" "inlined_fn from noinline inlined"
 301 gdb_test "up" "#1  noinline.*" "up to noinline"
 302 gdb_test "info frame" ".*\n called by frame.*" "noinline from outer_inline1 not inlined"
 303 gdb_test "up" "#2  .*outer_inline1.*" "up to outer_inline1"
 304 gdb_test "info frame" ".*inlined into frame.*" "outer_inline1 inlined"
 305 gdb_test "up" "#3  .*outer_inline2.*" "up to outer_inline2"
 306 gdb_test "info frame" ".*inlined into frame.*" "outer_inline2 inlined"
 307 gdb_test "up" "#4  main.*" "up from outer_inline2"
 308 gdb_test "info frame" ".*\n caller of frame.*" "main not inlined"