gdb/testsuite/gdb.hp/so-thresh.exp

   1 #   Copyright (C) 1997, 1998 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 if $tracelevel then {
  21         strace $tracelevel
  22         }
  23
  24 set prms_id 0
  25 set bug_id 0
  26
  27 # are we on a target board
  28 if ![isnative] then {
  29     return
  30 }
  31
  32 set testfile "so-thresh"
  33 set srcfile ${testfile}.c
  34 set binfile ${objdir}/${subdir}/${testfile}
  35
  36 if [get_compiler_info ${binfile}] {
  37     return -1
  38 }
  39
  40 # This testcase is automatically generated, via the
  41 # gen-so-thresh program, which also should
  42 # live in this same directory.
  43 #
  44 # The generator produces:
  45 #   - so-thresh.c
  46 #   - 3 .c files named libXX-so-thresh.c
  47 #   - a makefile named so-thresh.mk with a
  48 #     target named "so-thresh" that will compile
  49 #     and link the testcase
  50 #
  51 # Making with so-thresh.mk produces:
  52 #   - so-thresh
  53 #   - 3 shared libraries that are linked against, named
  54 #     libXX-so-thresh.sl
  55 #
  56 # We build gen-so-thresh, run it, and then make with
  57 # the makefile it produces.
  58 #
  59 set genfile gen_${testfile}
  60 set gen_srcfile ${genfile}.c
  61 set gen_binfile ${genfile}
  62 set gen_makefile ${testfile}.mk
  63
  64 # This testcase is relatively large, and therefore can take awhile to
  65 # load.  We'd best set the timeout to something suitable, or we may
  66 # seem to fail...
  67 #
  68 set timeout 60
  69
  70 # It's easiest to build and run the testcase in this directory.  (Linking
  71 # against shlibs puts relative paths to them in the a.out, so it's best
  72 # if we remain in this directory for the entire test run.)
  73 #
  74 #cd gdb.base
  75
  76 # Ensure that the testcase is built.  This may cause the generator to
  77 # be built & run.
  78 #
  79 # Warning!  The final link of this testcase is not for the
  80 # faint-hearted nor under-disked machine!
  81 #
  82 # ??rehrauer: I tried for a very long time to get make invoked
  83 # directly here, rather than invoking a script to do it.  I
  84 # finally gave up in frustration; I'm not sure why it wouldn't
  85 # work that way, but this method DOES work, albeit clumsily.
  86 #
  87
  88 send_user "Making with ${testfile}.mk ...\n"
  89 # remote_exec build "sh -c \\\"cd ${objdir}/${subdir}\\; make -v -f ${srcdir}/${subdir}/${testfile}.mk clean require_shlibs all SRCDIR=${srcdir}/${subdir} OBJDIR=${objdir}/${subdir}\\\""
  90 remote_exec build "sh -c \\\"cd ${objdir}/${subdir}\\; make -v -f ${srcdir}/${subdir}/${testfile}.mk clean require_shlibs all SRCDIR=${srcdir}/${subdir} OBJDIR=${objdir}/${subdir}\\\""
  91
  92 # Only HP-UX (and any other platforms using SOM shared libraries, I
  93 # guess) interprets the auto-solib-add variable as a threshhold,
  94 # rather than a boolean that strictly enables or disables automatic
  95 # loading of shlib symbol tables.
  96 #
  97 # On HP-UX, it is the size threshhold (in megabytes) at which to
  98 # stop auto loading of symbol tables.
  99 #
 100 if ![istarget "hppa*-hp-hpux*"] then {
 101    setup_xfail "*-*-*"
 102 }
 103
 104 # Start with a fresh gdb
 105 #
 106 gdb_exit
 107 gdb_start
 108 gdb_reinitialize_dir $srcdir/$subdir
 109 gdb_load ${binfile}
 110
 111 # This is a test of gdb's ability on HP-UX to stop automatically
 112 # loading symbols of shared libraries, when the total size of the
 113 # debugger's symbol table reaches a specified threshhold.
 114 #
 115
 116 # On HP-UX, the help text for auto-solib-add mentions that it
 117 # serves as a threshhold.
 118 #
 119 send_gdb "help set auto-solib-add\n"
 120 gdb_expect {
 121   -re "Set autoloading size threshold .in megabytes. of shared library symbols.*
 122 If nonzero, symbols from all shared object libraries will be loaded.*
 123 automatically when the inferior begins execution or when the dynamic linker.*
 124 informs gdb that a new library has been loaded, until the symbol table.*
 125 of the program and libraries exceeds this threshold.*
 126 Otherwise, symbols must be loaded manually, using `sharedlibrary'.*$gdb_prompt $"\
 127           {pass "help set auto-solib-add"}
 128   -re "$gdb_prompt $"\
 129           {fail "help set auto-solib-add"}
 130   timeout {fail "(timeout) help set auto-solib-add"}
 131 }
 132
 133 # On HP-UX, the threshhold is by default set to 50, which means
 134 # 50 megabytes.
 135 #
 136 send_gdb "show auto-solib-add\n"
 137 gdb_expect {
 138   -re "Autoloading size threshold .in megabytes. of shared library symbols is 100.*$gdb_prompt $"\
 139           {pass "show auto-solib-add (default is 100)"}
 140   -re "$gdb_prompt $"\
 141           {fail "show auto-solib-add (default is 100)"}
 142   timeout {fail "(timeout) show auto-solib-add (default is 100)"}
 143 }
 144
 145 send_gdb "set auto-solib-add 1\n"
 146 gdb_expect {
 147    -re ".*$gdb_prompt $"
 148             {pass "set auto-solib-add to 1"}
 149    -re ".*$gdb_prompt $"
 150             {fail "set auto-solib-add to 1"}
 151    timeout {fail "(timeout) set auto-solib-add to 1"}
 152 }
 153
 154
 155 # We have manually verified that our testcase exceeds 1 Mbytes
 156 # of heap space in GDB to hold the symbols for the main program
 157 # and all associated linked-against libraries.  Thus, when we
 158 # run to the program's main, and therefore notice all the linked-
 159 # against shlibs, we expect to hit the threshhold.
 160 #
 161 # (Note that we're not using the expect [runto main] function here,
 162 # 'cause we want to match on output from the run command.
 163 #
 164 send_gdb "break main\n"
 165 gdb_expect {
 166   -re "Breakpoint \[0-9\]* at.*$gdb_prompt $"\
 167           {pass "set break at main"}
 168   -re "$gdb_prompt $"\
 169           {fail "set break at main"}
 170   timeout {fail "(timeout) set break at main"}
 171 }
 172
 173 send_gdb "run\n"
 174 gdb_expect {
 175   -re ".*warning. Symbols for some libraries have not been loaded, because.*
 176 doing so would exceed the size threshold specified by auto-solib-add.*
 177 To manually load symbols, use the 'sharedlibrary' command.*
 178 To raise the threshold, set auto-solib-add to a larger value and rerun.*
 179 the program.*$gdb_prompt $"\
 180           {pass "run to main hit auto-solib-add threshold"}
 181   -re "$gdb_prompt $"\
 182           {fail "run to main hit auto-solib-add threshold"}
 183   timeout {fail "(timeout) run to main hit auto-solib-add threshold"}
 184 }
 185
 186 # Verify that "info share" mentions something about libraries whose
 187 # symbols weren't loaded.
 188 #
 189 # We'll assume that at least the last two shlib's symbols weren't
 190 # loaded.  As a side-effect of matching this pattern, the text start
 191 # address of the last one is captured in expect_out(1,string).
 192 # (we'll need it for the 'add-symbol-file' command in a nonce...)
 193 #
 194 send_gdb "info sharedlibrary\n"
 195 gdb_expect {
 196   -re ".*lib01_$testfile.sl .*symbols not loaded.*0x\[0-9\]*  (0x\[0-9a-fA-F\]*).*$gdb_prompt $"\
 197           { send_gdb "add-symbol-file lib02_$testfile.sl $expect_out(1,string)\n"
 198             gdb_expect {
 199               -re "add symbol table.*y or n.*$"\
 200                       {send_gdb "y\n"
 201                        gdb_expect {
 202                          -re "$gdb_prompt $" {pass "add-symbol-file and info sharedlib"}
 203                          timeout {fail "(timeout) add-symbol-file and info sharedlib"}
 204                        }}
 205               -re "$gdb_prompt $"\
 206                       {fail "add-symbol-file and info sharedlib"}
 207               timeout {fail "(timeout) add-symbol-file and info sharedlib"}
 208             }
 209           }
 210   -re "$gdb_prompt $"\
 211           {fail "info sharedlibrary shows shlibs with unloaded symbols"}
 212   timeout {fail "(timeout) info sharedlibrary shows shlibs with unloaded symbols"}
 213 }
 214
 215 # Verify that we can manually load the symbol table of a library
 216 # whose symbols weren't loaded.  (We'll pick the last one.)
 217 #
 218
 219 # I moved this test inside the one above, because the expect_out array is not ok if the
 220 # previous test has failed, and expect would error out (elz)
 221 #
 222 #send_gdb "add-symbol-file lib02_$testfile.sl $expect_out(1,string)\n"
 223 #gdb_expect {
 224 #  -re "add symbol table.*y or n.*$"\
 225 #          {send_gdb "y\n"
 226 #           gdb_expect {
 227 #             -re "$gdb_prompt $" {pass "add-symbol-file"}
 228 #             timeout {fail "(timeout) add-symbol-file"}
 229 #           }}
 230 #  -re "$gdb_prompt $"\
 231 #          {fail "add-symbol-file"}
 232 #  timeout {fail "(timeout) add-symbol-file"}
 233 #}
 234
 235 # Verify that we can manually load the symbols for all libraries
 236 # which weren't already loaded.
 237 #
 238 # Warning!  On a machine with little free swap space, this may
 239 # fail!
 240 #
 241 send_gdb "sharedlibrary\n"
 242 gdb_expect {
 243   -re "Reading symbols from.*done.*$gdb_prompt $"\
 244           {pass "sharedlibrary"}
 245   -re "$gdb_prompt $"\
 246           {fail "sharedlibrary"}
 247   timeout {fail "(timeout) sharedlibrary"}
 248 }
 249
 250 # Rerun the program, this time verifying that we can set the
 251 # threshhold high enough to avoid hitting it.
 252 #
 253 # It appears that gdb isn't freeing memory when rerunning, as one
 254 # would expect.  To avoid potentially hitting a virtual memory
 255 # ceiling, start with a fresh gdb.
 256 #
 257 gdb_exit
 258 gdb_start
 259 gdb_reinitialize_dir $srcdir/$subdir
 260 gdb_load ${binfile}
 261
 262 send_gdb "break main\n"
 263 gdb_expect {
 264   -re "Breakpoint \[0-9\]* at.*$gdb_prompt $"\
 265           {pass "set break at main"}
 266   -re "$gdb_prompt $"\
 267           {fail "set break at main"}
 268   timeout {fail "(timeout) set break at main"}
 269 }
 270
 271 send_gdb "set auto-solib-add 9999\n"
 272 gdb_expect {
 273   -re "$gdb_prompt $"\
 274           {pass "set auto-solib-add threshold to practical infinity"}
 275   timeout {fail "(timeout) set auto-solib-add threshold to practical infinity"}
 276 }
 277 send_gdb "run\n"
 278 gdb_expect {
 279   -re ".*warning. Symbols for some libraries have not been loaded, because.*
 280 doing so would exceed the size threshold specified by auto-solib-add.*
 281 To manually load symbols, use the 'sharedlibrary' command.*
 282 To raise the threshold, set auto-solib-add to a larger value and rerun.*
 283 the program.*$gdb_prompt $"\
 284           {fail "rerun threshold at practical infinity (still hit threshold)"}
 285   -re "$gdb_prompt $"\
 286           {pass "rerun with threshold at practical infinity"}
 287   timeout {fail "(timeout) rerun with threshold at practical infinity"}
 288 }
 289
 290 # Rerun the program, this time altogether disabling the auto loading
 291 # feature.  There should be no information at all about shared
 292 # libraries now.
 293 #
 294 # ??rehrauer: Personally, I'd call that a bug, since it doesn't give
 295 # you the ability to manually load single shlibs (you need the text
 296 # start address that 'info share' normall gives you).  On the other
 297 # hand, one can easily choose to load them all...
 298 #
 299 # It appears that gdb isn't freeing memory when rerunning, as one
 300 # would expect.  To avoid potentially hitting a virtual memory
 301 # ceiling, start with a fresh gdb.
 302 #
 303 gdb_exit
 304 gdb_start
 305 gdb_reinitialize_dir $srcdir/$subdir
 306 gdb_load ${binfile}
 307
 308 send_gdb "break main\n"
 309 gdb_expect {
 310   -re "Breakpoint \[0-9\]* at.*$gdb_prompt $"\
 311           {pass "set break at main"}
 312   -re "$gdb_prompt $"\
 313           {fail "set break at main"}
 314   timeout {fail "(timeout) set break at main"}
 315 }
 316
 317 send_gdb "set auto-solib-add 0\n"
 318 gdb_expect {
 319   -re "$gdb_prompt $"\
 320           {pass "set auto-solib-add threshold to 0"}
 321   timeout {fail "(timeout) set auto-solib-add threshold to 0"}
 322 }
 323 send_gdb "run\n"
 324 gdb_expect {
 325   -re ".*warning. Symbols for some libraries have not been loaded, because.*
 326 doing so would exceed the size threshold specified by auto-solib-add.*
 327 To manually load symbols, use the 'sharedlibrary' command.*
 328 To raise the threshold, set auto-solib-add to a larger value and rerun.*
 329 the program.*$gdb_prompt $"\
 330           {fail "rerun threshold at 0 (still hit threshold)"}
 331   -re "$gdb_prompt $"\
 332           {pass "rerun with threshold at 0"}
 333   timeout {fail "(timeout) rerun with threshold at 0"}
 334 }
 335
 336 # Verify that we can still manually load symbols for all libraries.
 337 # (We'll assume that if the last shlib's symbols are loaded, that
 338 # all of them were.)
 339 #
 340 # Note that we set the GDB "height" variable to prevent GDB from
 341 # prompting
 342 #
 343 # Warning!  On a machine with little free swap space, this may
 344 # fail!
 345 #
 346 send_gdb "set height 9999\n"
 347 gdb_expect {
 348   -re "$gdb_prompt $"\
 349           {pass "set screen page height to practical infinity"}
 350   timeout {fail "(timeout) set screen page height to practical infinity"}
 351 }
 352 send_gdb "sharedlibrary\n"
 353 gdb_expect {
 354   -re ".*Reading symbols from .*/lib02-so-thresh\\.sl\\.\\.\\.done\\..*$gdb_prompt $"\
 355           {pass "manually load all symbols"}
 356   -re "$gdb_prompt $"\
 357           {fail "manually load all symbols"}
 358   timeout {fail "(timeout) manually load all symbols"}
 359 }
 360
 361 #cd ..
 362 return 0