gdb/testsuite/gdb.base/overlays.exp

   1 # Copyright 1997-2019 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 } elseif [istarget "spu-*-*"] then {
  28     set linker_script "${srcdir}/${subdir}/spu.ld"
  29     set data_overlays 0
  30 } else {
  31     verbose "Skipping overlay test -- not implemented for this target."
  32     return
  33 }
  34
  35 if [istarget "*-*-linux*"] then {
  36     verbose "Skipping overlay test -- Linux doesn't support overlayed programs."
  37     return
  38 }
  39
  40 standard_testfile overlays.c ovlymgr.c foo.c bar.c baz.c grbx.c
  41
  42 if {[build_executable $testfile.exp $testfile \
  43          [list $srcfile $srcfile2 $srcfile3 $srcfile4 $srcfile5 $srcfile6] \
  44          {debug ldscript=-Wl,-T$linker_script}] == -1} {
  45      untested "failed to compile"
  46      return -1
  47 }
  48
  49 remote_exec build "mv ${testfile}.o foo.o bar.o baz.o grbx.o ovlymgr.o ${objdir}/${subdir}"
  50
  51
  52 gdb_start
  53 gdb_reinitialize_dir $srcdir/$subdir
  54 gdb_load ${binfile}
  55
  56 #
  57 # set it up at a breakpoint so we can play with the variable values
  58 #
  59
  60 if ![runto_main] then {
  61     fail "can't run to main"
  62     return 0
  63 }
  64
  65 # couple of convenience variables
  66 set fptrcast [string_to_regexp "{int (int)}"]
  67 set iptrcast [string_to_regexp "(int *)"]
  68 set hexx "0x\[0-9abcdefABCDEF\]+"
  69
  70 gdb_test_no_output "overlay manual"
  71 gdb_test "overlay list" "No sections are mapped." "list with none mapped"
  72
  73 # capture the LMA addresses of [foo bar baz grbx foox barx bazx grbxx]
  74
  75 proc get_func_address { func func_sym msg } {
  76     global gdb_prompt
  77     global fptrcast
  78     global hexx
  79
  80     set func_addr 0
  81     send_gdb "print $func\n"
  82     gdb_expect {
  83         -re "\\$\[0-9\]+ = $fptrcast (${hexx}) <$func_sym>.*$gdb_prompt $" {
  84             set func_addr $expect_out(1,string)
  85             pass "get $msg"
  86         }
  87         -re ".*$gdb_prompt $" {
  88             fail "get $msg"
  89         }
  90         default {
  91             fail "get $msg (timeout)"
  92         }
  93     }
  94     return $func_addr
  95 }
  96
  97 set foo_lma  [get_func_address "foo"  "\\*foo\\*"  "foo  load address"]
  98 set bar_lma  [get_func_address "bar"  "\\*bar\\*"  "bar  load address"]
  99 set baz_lma  [get_func_address "baz"  "\\*baz\\*"  "baz  load address"]
 100 set grbx_lma [get_func_address "grbx" "\\*grbx\\*" "grbx load address"]
 101
 102 if $data_overlays then {
 103     gdb_test "print \$foox_lma = &foox" \
 104         ".* $iptrcast 0x.*"  "foox load addr"
 105     gdb_test "print \$barx_lma = &barx" \
 106         ".* $iptrcast 0x.*"  "barx load addr"
 107     gdb_test "print \$bazx_lma = &bazx" \
 108         ".* $iptrcast 0x.*"  "bazx load addr"
 109     gdb_test "print \$grbxx_lma = &grbxx" \
 110         ".* $iptrcast 0x.*" "grbxx load addr"
 111 }
 112
 113 # map each overlay successively, and
 114 # capture the VMA addresses of [foo bar baz grbx foox barx bazx grbxx]
 115
 116 gdb_test "overlay map .ovly0" ""
 117 gdb_test "overlay list" "Section .ovly0, loaded at.*, mapped at.*" "list ovly0"
 118 set foo_vma [get_func_address "foo"  "foo"  "foo  runtime address"]
 119
 120 gdb_test "overlay map .ovly1" ""
 121 gdb_test "overlay list" "Section .ovly1, loaded at.*, mapped at.*" "list ovly1"
 122 set bar_vma [get_func_address "bar"  "bar"  "bar  runtime address"]
 123
 124 gdb_test "overlay map .ovly2" ""
 125 gdb_test "overlay list" "Section .ovly2, loaded at.*, mapped at.*" "list ovly2"
 126 set baz_vma [get_func_address "baz"  "baz"  "baz  runtime address"]
 127
 128 gdb_test "overlay map .ovly3" ""
 129 gdb_test "overlay list" "Section .ovly3, loaded at.*, mapped at.*" "list ovly3"
 130 set grbx_vma [get_func_address "grbx" "grbx" "grbx runtime address"]
 131
 132 if $data_overlays then {
 133     gdb_test "overlay map .data00" ""
 134     gdb_test "overlay list" "Section .data00, loaded .*, mapped .*" "list data00"
 135     gdb_test "print \$foox_vma = &foox" \
 136         ".* $iptrcast 0x.*"  "foox runtime addr"
 137
 138     gdb_test "overlay map .data01" ""
 139     gdb_test "overlay list" "Section .data01, loaded .*, mapped .*" "list data01"
 140     gdb_test "print \$barx_vma = &barx" \
 141         ".* $iptrcast 0x.*"  "barx runtime addr"
 142
 143     gdb_test "overlay map .data02" ""
 144     gdb_test "overlay list" "Section .data02, loaded .*, mapped .*" "list data02"
 145     gdb_test "print \$bazx_vma = &bazx" \
 146         ".* $iptrcast 0x.*"  "bazx runtime addr"
 147
 148     gdb_test "overlay map .data03" ""
 149     gdb_test "overlay list" "Section .data03, loaded .*, mapped .*" "list data03"
 150     gdb_test "print \$grbxx_vma = &grbxx" \
 151         ".* $iptrcast 0x.*"  "grbxx runtime addr"
 152 }
 153 # Verify that LMA != VMA
 154
 155 gdb_test "print $foo_lma   != $foo_vma" ".* = 1"   "foo's LMA   != VMA"
 156 gdb_test "print $bar_lma   != $bar_vma" ".* = 1"   "bar's LMA   != VMA"
 157 gdb_test "print $baz_lma   != $baz_vma" ".* = 1"   "baz's LMA   != VMA"
 158 gdb_test "print $grbx_lma  != $grbx_vma" ".* = 1"  "grbx's LMA  != VMA"
 159 if $data_overlays then {
 160     gdb_test "print \$foox_lma  != \$foox_vma" ".* = 1"  "foox's LMA  != VMA"
 161     gdb_test "print \$barx_lma  != \$barx_vma" ".* = 1"  "barx's LMA  != VMA"
 162     gdb_test "print \$bazx_lma  != \$bazx_vma" ".* = 1"  "bazx's LMA  != VMA"
 163     gdb_test "print \$grbxx_lma != \$grbxx_vma" ".* = 1" "grbxx's LMA != VMA"
 164 }
 165
 166 # Verify that early-mapped overlays have been bumped out
 167 # by later-mapped overlays layed over in the same VMA range.
 168
 169 send_gdb "overlay list\n"
 170 gdb_expect {
 171     -re ".*ovly0, "             { fail ".ovly0  not unmapped by .ovly1"  }
 172     -re ".*ovly2, "             { fail ".ovly2  not unmapped by .ovly3"  }
 173     -re ".*data00,"             { fail ".data00 not unmapped by .data01" }
 174     -re ".*data02,"             { fail ".data02 not unmapped by .data03" }
 175     -re ".*$gdb_prompt $"       { pass "automatic unmapping"             }
 176     timeout                     { fail "(timeout) Automatic unmapping"   }
 177 }
 178
 179 # Verify that both sec1 and sec2 can be loaded simultaneously.
 180 proc simultaneous_pair { sec1 sec2 } {
 181     global gdb_prompt
 182
 183     set pairname "$sec1 and $sec2 mapped simultaneously"
 184     gdb_test "overlay map $sec1" "" "$pairname: map $sec1"
 185     gdb_test "overlay map $sec2" "" "$pairname: map $sec2"
 186
 187     set seen_sec1 0
 188     set seen_sec2 0
 189
 190     send_gdb "overlay list\n"
 191     gdb_expect {
 192         -re ".*[string_to_regexp $sec1], " { set seen_sec1 1; exp_continue }
 193         -re ".*[string_to_regexp $sec2], " { set seen_sec2 1; exp_continue }
 194         -re ".*$gdb_prompt $" {
 195             if {$seen_sec1 && $seen_sec2} {
 196                 pass "$pairname"
 197             } else {
 198                 fail "$pairname"
 199             }
 200         }
 201         timeout { fail "(timeout) $pairname" }
 202     }
 203 }
 204
 205 simultaneous_pair .ovly0 .ovly2
 206 simultaneous_pair .ovly0 .ovly3
 207 simultaneous_pair .ovly1 .ovly2
 208 simultaneous_pair .ovly1 .ovly3
 209
 210 if $data_overlays then {
 211     simultaneous_pair .data00 .data02
 212     simultaneous_pair .data00 .data03
 213     simultaneous_pair .data01 .data02
 214     simultaneous_pair .data01 .data03
 215 }
 216
 217 # test automatic mode
 218
 219 gdb_test_no_output "overlay auto"
 220 gdb_test "overlay list" "No sections are mapped." "list none mapped (auto)"
 221 gdb_test "break foo"  "Breakpoint .*at .*file .*foo.c.*"  "break foo"
 222 gdb_test "break bar"  "Breakpoint .*at .*file .*bar.c.*"  "break bar"
 223 gdb_test "break baz"  "Breakpoint .*at .*file .*baz.c.*"  "break baz"
 224 gdb_test "break grbx" "Breakpoint .*at .*file .*grbx.c.*" "break grbx"
 225
 226 send_gdb "continue\n"
 227 gdb_expect {
 228     -re "Breakpoint .* foo .x=1. at .*$gdb_prompt $" { pass   "hit foo" }
 229     -re ".*$gdb_prompt $"                            { fail   "hit foo" }
 230     timeout                                  { fail "(timeout) hit foo" }
 231 }
 232
 233 send_gdb "backtrace\n"
 234 gdb_expect {
 235     -re "#0 .*foo .*#1 .*main .*$gdb_prompt $"       { pass   "BT foo" }
 236     -re ".*$gdb_prompt $"                            { fail   "BT foo" }
 237     timeout                                  { fail "(timeout) BT foo" }
 238 }
 239
 240
 241 send_gdb "continue\n"
 242 gdb_expect {
 243     -re "Breakpoint .* bar .x=1. at .*$gdb_prompt $" { pass   "hit bar" }
 244     -re ".*$gdb_prompt $"                            { fail   "hit bar" }
 245     timeout                                  { fail "(timeout) hit bar" }
 246 }
 247
 248 send_gdb "backtrace\n"
 249 gdb_expect {
 250     -re "#0 .*bar .*#1 .*main .*$gdb_prompt $"       { pass   "BT bar" }
 251     -re ".*$gdb_prompt $"                            { fail   "BT bar" }
 252     timeout                                  { fail "(timeout) BT bar" }
 253 }
 254
 255 send_gdb "continue\n"
 256 gdb_expect {
 257     -re "Breakpoint .* baz .x=1. at .*$gdb_prompt $" { pass   "hit baz" }
 258     -re ".*$gdb_prompt $"                            { fail   "hit baz" }
 259     timeout                                  { fail "(timeout) hit baz" }
 260 }
 261
 262 send_gdb "backtrace\n"
 263 gdb_expect {
 264     -re "#0 .*baz .*#1 .*main .*$gdb_prompt $"       { pass   "BT baz" }
 265     -re ".*$gdb_prompt $"                            { fail   "BT baz" }
 266     timeout                                  { fail "(timeout) BT baz" }
 267 }
 268
 269 send_gdb "continue\n"
 270 gdb_expect {
 271     -re "Breakpoint .* grbx .x=1. at .*$gdb_prompt $" { pass   "hit grbx" }
 272     -re ".*$gdb_prompt $"                             { fail   "hit grbx" }
 273     timeout                                   { fail "(timeout) hit grbx" }
 274 }
 275
 276 send_gdb "backtrace\n"
 277 gdb_expect {
 278     -re "#0 .*grbx .*#1 .*main .*$gdb_prompt $"      { pass   "BT grbx" }
 279     -re ".*$gdb_prompt $"                            { fail   "BT grbx" }
 280     timeout                                  { fail "(timeout) BT grbx" }
 281 }
 282