gdb/testsuite/gdb.base/overlays.exp

   1 # Copyright 1997-2020 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 # This file was written by Michael Snyder (msnyder@cygnus.com)
  17
  18 #
  19 # test running programs
  20 #
  21
  22
  23 set data_overlays 1
  24
  25 if [istarget "m32r-*-*"] then {
  26     set linker_script "${srcdir}/${subdir}/m32r.ld"
  27 } else {
  28     verbose "Skipping overlay test -- not implemented for this target."
  29     return
  30 }
  31
  32 if [istarget "*-*-linux*"] then {
  33     verbose "Skipping overlay test -- Linux doesn't support overlayed programs."
  34     return
  35 }
  36
  37 standard_testfile overlays.c ovlymgr.c foo.c bar.c baz.c grbx.c
  38
  39 if {[build_executable $testfile.exp $testfile \
  40          [list $srcfile $srcfile2 $srcfile3 $srcfile4 $srcfile5 $srcfile6] \
  41          "debug ldscript=-Wl,-T$linker_script"] == -1} {
  42      untested "failed to compile"
  43      return -1
  44 }
  45
  46 remote_exec build "mv ${testfile}.o foo.o bar.o baz.o grbx.o ovlymgr.o ${objdir}/${subdir}"
  47
  48
  49 gdb_start
  50 gdb_reinitialize_dir $srcdir/$subdir
  51 gdb_load ${binfile}
  52
  53 #
  54 # set it up at a breakpoint so we can play with the variable values
  55 #
  56
  57 if ![runto_main] then {
  58     fail "can't run to main"
  59     return 0
  60 }
  61
  62 # couple of convenience variables
  63 set fptrcast [string_to_regexp "{int (int)}"]
  64 set iptrcast [string_to_regexp "(int *)"]
  65 set hexx "0x\[0-9abcdefABCDEF\]+"
  66
  67 gdb_test_no_output "overlay manual"
  68 gdb_test "overlay list" "No sections are mapped." "list with none mapped"
  69
  70 # capture the LMA addresses of [foo bar baz grbx foox barx bazx grbxx]
  71
  72 proc get_func_address { func func_sym msg } {
  73     global gdb_prompt
  74     global fptrcast
  75     global hexx
  76
  77     set func_addr 0
  78     send_gdb "print $func\n"
  79     gdb_expect {
  80         -re "\\$\[0-9\]+ = $fptrcast (${hexx}) <$func_sym>.*$gdb_prompt $" {
  81             set func_addr $expect_out(1,string)
  82             pass "get $msg"
  83         }
  84         -re ".*$gdb_prompt $" {
  85             fail "get $msg"
  86         }
  87         default {
  88             fail "get $msg (timeout)"
  89         }
  90     }
  91     return $func_addr
  92 }
  93
  94 set foo_lma  [get_func_address "foo"  "\\*foo\\*"  "foo  load address"]
  95 set bar_lma  [get_func_address "bar"  "\\*bar\\*"  "bar  load address"]
  96 set baz_lma  [get_func_address "baz"  "\\*baz\\*"  "baz  load address"]
  97 set grbx_lma [get_func_address "grbx" "\\*grbx\\*" "grbx load address"]
  98
  99 if $data_overlays then {
 100     gdb_test "print \$foox_lma = &foox" \
 101         ".* $iptrcast 0x.*"  "foox load addr"
 102     gdb_test "print \$barx_lma = &barx" \
 103         ".* $iptrcast 0x.*"  "barx load addr"
 104     gdb_test "print \$bazx_lma = &bazx" \
 105         ".* $iptrcast 0x.*"  "bazx load addr"
 106     gdb_test "print \$grbxx_lma = &grbxx" \
 107         ".* $iptrcast 0x.*" "grbxx load addr"
 108 }
 109
 110 # map each overlay successively, and
 111 # capture the VMA addresses of [foo bar baz grbx foox barx bazx grbxx]
 112
 113 gdb_test "overlay map .ovly0" ""
 114 gdb_test "overlay list" "Section .ovly0, loaded at.*, mapped at.*" "list ovly0"
 115 set foo_vma [get_func_address "foo"  "foo"  "foo  runtime address"]
 116
 117 gdb_test "overlay map .ovly1" ""
 118 gdb_test "overlay list" "Section .ovly1, loaded at.*, mapped at.*" "list ovly1"
 119 set bar_vma [get_func_address "bar"  "bar"  "bar  runtime address"]
 120
 121 gdb_test "overlay map .ovly2" ""
 122 gdb_test "overlay list" "Section .ovly2, loaded at.*, mapped at.*" "list ovly2"
 123 set baz_vma [get_func_address "baz"  "baz"  "baz  runtime address"]
 124
 125 gdb_test "overlay map .ovly3" ""
 126 gdb_test "overlay list" "Section .ovly3, loaded at.*, mapped at.*" "list ovly3"
 127 set grbx_vma [get_func_address "grbx" "grbx" "grbx runtime address"]
 128
 129 if $data_overlays then {
 130     gdb_test "overlay map .data00" ""
 131     gdb_test "overlay list" "Section .data00, loaded .*, mapped .*" "list data00"
 132     gdb_test "print \$foox_vma = &foox" \
 133         ".* $iptrcast 0x.*"  "foox runtime addr"
 134
 135     gdb_test "overlay map .data01" ""
 136     gdb_test "overlay list" "Section .data01, loaded .*, mapped .*" "list data01"
 137     gdb_test "print \$barx_vma = &barx" \
 138         ".* $iptrcast 0x.*"  "barx runtime addr"
 139
 140     gdb_test "overlay map .data02" ""
 141     gdb_test "overlay list" "Section .data02, loaded .*, mapped .*" "list data02"
 142     gdb_test "print \$bazx_vma = &bazx" \
 143         ".* $iptrcast 0x.*"  "bazx runtime addr"
 144
 145     gdb_test "overlay map .data03" ""
 146     gdb_test "overlay list" "Section .data03, loaded .*, mapped .*" "list data03"
 147     gdb_test "print \$grbxx_vma = &grbxx" \
 148         ".* $iptrcast 0x.*"  "grbxx runtime addr"
 149 }
 150 # Verify that LMA != VMA
 151
 152 gdb_test "print $foo_lma   != $foo_vma" ".* = 1"   "foo's LMA   != VMA"
 153 gdb_test "print $bar_lma   != $bar_vma" ".* = 1"   "bar's LMA   != VMA"
 154 gdb_test "print $baz_lma   != $baz_vma" ".* = 1"   "baz's LMA   != VMA"
 155 gdb_test "print $grbx_lma  != $grbx_vma" ".* = 1"  "grbx's LMA  != VMA"
 156 if $data_overlays then {
 157     gdb_test "print \$foox_lma  != \$foox_vma" ".* = 1"  "foox's LMA  != VMA"
 158     gdb_test "print \$barx_lma  != \$barx_vma" ".* = 1"  "barx's LMA  != VMA"
 159     gdb_test "print \$bazx_lma  != \$bazx_vma" ".* = 1"  "bazx's LMA  != VMA"
 160     gdb_test "print \$grbxx_lma != \$grbxx_vma" ".* = 1" "grbxx's LMA != VMA"
 161 }
 162
 163 # Verify that early-mapped overlays have been bumped out
 164 # by later-mapped overlays layed over in the same VMA range.
 165
 166 send_gdb "overlay list\n"
 167 gdb_expect {
 168     -re ".*ovly0, "             { fail ".ovly0  not unmapped by .ovly1"  }
 169     -re ".*ovly2, "             { fail ".ovly2  not unmapped by .ovly3"  }
 170     -re ".*data00,"             { fail ".data00 not unmapped by .data01" }
 171     -re ".*data02,"             { fail ".data02 not unmapped by .data03" }
 172     -re ".*$gdb_prompt $"       { pass "automatic unmapping"             }
 173     timeout                     { fail "(timeout) Automatic unmapping"   }
 174 }
 175
 176 # Verify that both sec1 and sec2 can be loaded simultaneously.
 177 proc simultaneous_pair { sec1 sec2 } {
 178     global gdb_prompt
 179
 180     set pairname "$sec1 and $sec2 mapped simultaneously"
 181     gdb_test "overlay map $sec1" "" "$pairname: map $sec1"
 182     gdb_test "overlay map $sec2" "" "$pairname: map $sec2"
 183
 184     set seen_sec1 0
 185     set seen_sec2 0
 186
 187     send_gdb "overlay list\n"
 188     gdb_expect {
 189         -re ".*[string_to_regexp $sec1], " { set seen_sec1 1; exp_continue }
 190         -re ".*[string_to_regexp $sec2], " { set seen_sec2 1; exp_continue }
 191         -re ".*$gdb_prompt $" {
 192             if {$seen_sec1 && $seen_sec2} {
 193                 pass "$pairname"
 194             } else {
 195                 fail "$pairname"
 196             }
 197         }
 198         timeout { fail "(timeout) $pairname" }
 199     }
 200 }
 201
 202 simultaneous_pair .ovly0 .ovly2
 203 simultaneous_pair .ovly0 .ovly3
 204 simultaneous_pair .ovly1 .ovly2
 205 simultaneous_pair .ovly1 .ovly3
 206
 207 if $data_overlays then {
 208     simultaneous_pair .data00 .data02
 209     simultaneous_pair .data00 .data03
 210     simultaneous_pair .data01 .data02
 211     simultaneous_pair .data01 .data03
 212 }
 213
 214 # test automatic mode
 215
 216 gdb_test_no_output "overlay auto"
 217 gdb_test "overlay list" "No sections are mapped." "list none mapped (auto)"
 218 gdb_test "break foo"  "Breakpoint .*at .*file .*foo.c.*"  "break foo"
 219 gdb_test "break bar"  "Breakpoint .*at .*file .*bar.c.*"  "break bar"
 220 gdb_test "break baz"  "Breakpoint .*at .*file .*baz.c.*"  "break baz"
 221 gdb_test "break grbx" "Breakpoint .*at .*file .*grbx.c.*" "break grbx"
 222
 223 send_gdb "continue\n"
 224 gdb_expect {
 225     -re "Breakpoint .* foo .x=1. at .*$gdb_prompt $" { pass   "hit foo" }
 226     -re ".*$gdb_prompt $"                            { fail   "hit foo" }
 227     timeout                                  { fail "(timeout) hit foo" }
 228 }
 229
 230 send_gdb "backtrace\n"
 231 gdb_expect {
 232     -re "#0 .*foo .*#1 .*main .*$gdb_prompt $"       { pass   "BT foo" }
 233     -re ".*$gdb_prompt $"                            { fail   "BT foo" }
 234     timeout                                  { fail "(timeout) BT foo" }
 235 }
 236
 237
 238 send_gdb "continue\n"
 239 gdb_expect {
 240     -re "Breakpoint .* bar .x=1. at .*$gdb_prompt $" { pass   "hit bar" }
 241     -re ".*$gdb_prompt $"                            { fail   "hit bar" }
 242     timeout                                  { fail "(timeout) hit bar" }
 243 }
 244
 245 send_gdb "backtrace\n"
 246 gdb_expect {
 247     -re "#0 .*bar .*#1 .*main .*$gdb_prompt $"       { pass   "BT bar" }
 248     -re ".*$gdb_prompt $"                            { fail   "BT bar" }
 249     timeout                                  { fail "(timeout) BT bar" }
 250 }
 251
 252 send_gdb "continue\n"
 253 gdb_expect {
 254     -re "Breakpoint .* baz .x=1. at .*$gdb_prompt $" { pass   "hit baz" }
 255     -re ".*$gdb_prompt $"                            { fail   "hit baz" }
 256     timeout                                  { fail "(timeout) hit baz" }
 257 }
 258
 259 send_gdb "backtrace\n"
 260 gdb_expect {
 261     -re "#0 .*baz .*#1 .*main .*$gdb_prompt $"       { pass   "BT baz" }
 262     -re ".*$gdb_prompt $"                            { fail   "BT baz" }
 263     timeout                                  { fail "(timeout) BT baz" }
 264 }
 265
 266 send_gdb "continue\n"
 267 gdb_expect {
 268     -re "Breakpoint .* grbx .x=1. at .*$gdb_prompt $" { pass   "hit grbx" }
 269     -re ".*$gdb_prompt $"                             { fail   "hit grbx" }
 270     timeout                                   { fail "(timeout) hit grbx" }
 271 }
 272
 273 send_gdb "backtrace\n"
 274 gdb_expect {
 275     -re "#0 .*grbx .*#1 .*main .*$gdb_prompt $"      { pass   "BT grbx" }
 276     -re ".*$gdb_prompt $"                            { fail   "BT grbx" }
 277     timeout                                  { fail "(timeout) BT grbx" }
 278 }
 279