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 20if $tracelevel then { 21 strace $tracelevel 22 } 23 24set prms_id 0 25set bug_id 0 26 27if { [skip_hp_tests] } then { continue } 28 29set testfile "so-thresh" 30set binfile ${objdir}/${subdir}/${testfile} 31 32if [get_compiler_info ${binfile}] { 33 return -1 34} 35 36# This testcase is relatively large, and therefore can take awhile to 37# load. We'd best set the timeout to something suitable, or we may 38# seem to fail... 39# 40set timeout 60 41 42# Build procedure for this testcase: 43# ${srcdir}/${subdir}/so-thresh.sh ${subdir} 44# which calls, 45# make -f ${srcdir}/${subdir}/so-thresh.mk <targets> <macros> 46# which builds, 47# genso-thresh (from genso-thresh.c) 48# which generates, 49# lib00-so-thresh.c 50# lib01-so-thresh.c 51# lib02-so-thresh.c 52# so-thresh.lopt (link options file) 53# lib0*-so-thresh.sl (from .c files above) 54# so-thresh (from so-thresh.c) 55# using lib0*-so-thresh.sl and so-thresh.lopt 56# 57# Since so-thresh.mk requires SRCDIR and OBJDIR macro definitions, 58# and SRCDIR / OBJDIR could be in relative path format, we use 59# so-thresh.sh script to pin down SRCDIR / OBJDIR (using $PWD/ prefix 60# when detected relative path values for srcdir / objdir), before the 61# 'cd $subdir' call (when this can be done in TCL here, we can call 62# make directly instead). 63# 64# remote_exec build "sh -c \\\"cd ${objdir}/${subdir}\\; make -v -f ${srcdir}/${subdir}/${testfile}.mk clean require_shlibs all SRCDIR=${srcdir}/${subdir} OBJDIR=${objdir}/${subdir}\\\"" 65 66remote_exec build "${srcdir}/${subdir}/${testfile}.sh $subdir" 67 68# Only HP-UX (and any other platforms using SOM shared libraries, I 69# guess) interprets the auto-solib-limit variable as a threshhold, 70# rather than a boolean that strictly enables or disables automatic 71# loading of shlib symbol tables. 72# 73# On HP-UX, it is the size threshhold (in megabytes) at which to 74# stop auto loading of symbol tables. 75# 76if ![istarget "hppa*-hp-hpux*"] then { 77 setup_xfail "*-*-*" 78} 79 80# Start with a fresh gdb 81# 82gdb_exit 83gdb_start 84gdb_reinitialize_dir $srcdir/$subdir 85gdb_load ${binfile} 86 87# This is a test of gdb's ability on HP-UX to stop automatically 88# loading symbols of shared libraries, when the total size of the 89# debugger's symbol table reaches a specified threshhold. 90# 91 92# On HP-UX, the help text for auto-solib-limit mentions that it 93# serves as a threshhold. 94# 95send_gdb "help set auto-solib-limit\n" 96gdb_expect { 97 -re "Set threshold .in Mb. for autoloading shared library symbols.* 98When shared library autoloading is enabled, new libraries will be loaded.* 99only until the total size of shared library symbols exceeds this.* 100threshold in megabytes. Is ignored when using .sharedlibrary.*$gdb_prompt $"\ 101 {pass "help set auto-solib-limit"} 102 -re "$gdb_prompt $"\ 103 {fail "help set auto-solib-limit"} 104 timeout {fail "(timeout) help set auto-solib-limit"} 105} 106 107# On HP-UX, the threshhold is by default set to 50, which means 108# 50 megabytes. 109# 110send_gdb "show auto-solib-limit\n" 111gdb_expect { 112 -re "Threshold .in Mb. for autoloading shared library symbols is $decimal.*$gdb_prompt $"\ 113 {pass "show auto-solib-limit "} 114 -re "$gdb_prompt $"\ 115 {fail "show auto-solib-limit "} 116 timeout {fail "(timeout) show auto-solib-limit "} 117} 118 119send_gdb "set auto-solib-limit 1\n" 120gdb_expect { 121 -re ".*$gdb_prompt $" 122 {pass "set auto-solib-limit to 1"} 123 -re ".*$gdb_prompt $" 124 {fail "set auto-solib-limit to 1"} 125 timeout {fail "(timeout) set auto-solib-limit to 1"} 126} 127 128 129# We have manually verified that our testcase exceeds 1 Mbytes 130# of heap space in GDB to hold the symbols for the main program 131# and all associated linked-against libraries. Thus, when we 132# run to the program's main, and therefore notice all the linked- 133# against shlibs, we expect to hit the threshhold. 134# 135# (Note that we're not using the expect [runto main] function here, 136# 'cause we want to match on output from the run command. 137# 138send_gdb "break main\n" 139gdb_expect { 140 -re "Breakpoint \[0-9\]* at.*$gdb_prompt $"\ 141 {pass "1 set break at main"} 142 -re "$gdb_prompt $"\ 143 {fail "1 set break at main"} 144 timeout {fail "(timeout) 1 set break at main"} 145} 146 147send_gdb "run\n" 148gdb_expect { 149 -re ".*warning. Symbols for some libraries have not been loaded, because.* 150doing so would exceed the size threshold specified by auto-solib-limit.* 151To manually load symbols, use the 'sharedlibrary' command.* 152To raise the threshold, set auto-solib-limit to a larger value and rerun.* 153the program.*$gdb_prompt $"\ 154 {pass "run to main hit auto-solib-limit threshold"} 155 -re "$gdb_prompt $"\ 156 {fail "run to main hit auto-solib-limit threshold"} 157 timeout {fail "(timeout) run to main hit auto-solib-limit threshold"} 158} 159 160# Verify that "info share" mentions something about libraries whose 161# symbols weren't loaded. 162# 163# We'll assume that at least the last two shlib's symbols weren't 164# loaded. As a side-effect of matching this pattern, the text start 165# address of the last one is captured in expect_out(1,string). 166# (we'll need it for the 'add-symbol-file' command in a nonce...) 167# 168send_gdb "info sharedlibrary\n" 169gdb_expect { 170 -re ".*lib01_$testfile.sl .*symbols not loaded.*0x\[0-9\]* (0x\[0-9a-fA-F\]*).*$gdb_prompt $"\ 171 { send_gdb "add-symbol-file lib02_$testfile.sl $expect_out(1,string)\n" 172 gdb_expect { 173 -re "add symbol table.*y or n.*$"\ 174 {send_gdb "y\n" 175 gdb_expect { 176 -re "$gdb_prompt $" {pass "add-symbol-file and info sharedlib"} 177 timeout {fail "(timeout) add-symbol-file and info sharedlib"} 178 }} 179 -re "$gdb_prompt $"\ 180 {fail "add-symbol-file and info sharedlib"} 181 timeout {fail "(timeout) add-symbol-file and info sharedlib"} 182 } 183 } 184 -re "$gdb_prompt $" { 185 setup_xfail hppa*-*-* CHFts24108 186 fail "info sharedlibrary shows shlibs with unloaded symbols" 187 } 188 timeout {fail "(timeout) info sharedlibrary shows shlibs with unloaded symbols"} 189} 190 191# Verify that we can manually load the symbol table of a library 192# whose symbols weren't loaded. (We'll pick the last one.) 193# 194 195# I moved this test inside the one above, because the expect_out array is not ok if the 196# previous test has failed, and expect would error out (elz) 197# 198#send_gdb "add-symbol-file lib02_$testfile.sl $expect_out(1,string)\n" 199#gdb_expect { 200# -re "add symbol table.*y or n.*$"\ 201# {send_gdb "y\n" 202# gdb_expect { 203# -re "$gdb_prompt $" {pass "add-symbol-file"} 204# timeout {fail "(timeout) add-symbol-file"} 205# }} 206# -re "$gdb_prompt $"\ 207# {fail "add-symbol-file"} 208# timeout {fail "(timeout) add-symbol-file"} 209#} 210 211# Verify that we can manually load the symbols for all libraries 212# which weren't already loaded. 213# 214# Warning! On a machine with little free swap space, this may 215# fail! 216# 217send_gdb "sharedlibrary\n" 218gdb_expect { 219 -re "Reading symbols from.*done.*$gdb_prompt $"\ 220 {pass "sharedlibrary"} 221 -re "$gdb_prompt $" { 222 setup_xfail hppa*-*-* CHFts24108 223 fail "sharedlibrary" 224 } 225 timeout {fail "(timeout) sharedlibrary"} 226} 227 228# Rerun the program, this time verifying that we can set the 229# threshhold high enough to avoid hitting it. 230# 231# It appears that gdb isn't freeing memory when rerunning, as one 232# would expect. To avoid potentially hitting a virtual memory 233# ceiling, start with a fresh gdb. 234# 235gdb_exit 236gdb_start 237gdb_reinitialize_dir $srcdir/$subdir 238gdb_load ${binfile} 239 240send_gdb "break main\n" 241gdb_expect { 242 -re "Breakpoint \[0-9\]* at.*$gdb_prompt $"\ 243 {pass "2 set break at main"} 244 -re "$gdb_prompt $"\ 245 {fail "2 set break at main"} 246 timeout {fail "(timeout) 2 set break at main"} 247} 248 249send_gdb "set auto-solib-limit 9999\n" 250gdb_expect { 251 -re "$gdb_prompt $"\ 252 {pass "set auto-solib-limit threshold to practical infinity"} 253 timeout {fail "(timeout) set auto-solib-limit threshold to practical infinity"} 254} 255send_gdb "run\n" 256gdb_expect { 257 -re ".*warning. Symbols for some libraries have not been loaded, because.* 258doing so would exceed the size threshold specified by auto-solib-limit.* 259To manually load symbols, use the 'sharedlibrary' command.* 260To raise the threshold, set auto-solib-limit to a larger value and rerun.* 261the program.*$gdb_prompt $"\ 262 {fail "rerun threshold at practical infinity (still hit threshold)"} 263 -re "$gdb_prompt $"\ 264 {pass "rerun with threshold at practical infinity"} 265 timeout {fail "(timeout) rerun with threshold at practical infinity"} 266} 267 268# Rerun the program, this time altogether disabling the auto loading 269# feature. There should be no information at all about shared 270# libraries now. 271# 272# ??rehrauer: Personally, I'd call that a bug, since it doesn't give 273# you the ability to manually load single shlibs (you need the text 274# start address that 'info share' normall gives you). On the other 275# hand, one can easily choose to load them all... 276# 277# It appears that gdb isn't freeing memory when rerunning, as one 278# would expect. To avoid potentially hitting a virtual memory 279# ceiling, start with a fresh gdb. 280# 281gdb_exit 282gdb_start 283gdb_reinitialize_dir $srcdir/$subdir 284gdb_load ${binfile} 285 286send_gdb "break main\n" 287gdb_expect { 288 -re "Breakpoint \[0-9\]* at.*$gdb_prompt $"\ 289 {pass "3 set break at main"} 290 -re "$gdb_prompt $"\ 291 {fail "3 set break at main"} 292 timeout {fail "(timeout) 3 set break at main"} 293} 294 295send_gdb "set auto-solib-limit 0\n" 296gdb_expect { 297 -re "$gdb_prompt $"\ 298 {pass "set auto-solib-limit threshold to 0"} 299 timeout {fail "(timeout) set auto-solib-limit threshold to 0"} 300} 301send_gdb "run\n" 302gdb_expect { 303 -re ".*warning. Symbols for some libraries have not been loaded, because.* 304doing so would exceed the size threshold specified by auto-solib-limit.* 305To manually load symbols, use the 'sharedlibrary' command.* 306To raise the threshold, set auto-solib-limit to a larger value and rerun.* 307the program.*$gdb_prompt $"\ 308 {fail "rerun threshold at 0 (still hit threshold)"} 309 -re "$gdb_prompt $"\ 310 {pass "rerun with threshold at 0"} 311 timeout {fail "(timeout) rerun with threshold at 0"} 312} 313 314# Verify that we can still manually load symbols for all libraries. 315# (We'll assume that if the last shlib's symbols are loaded, that 316# all of them were.) 317# 318# Note that we set the GDB "height" variable to prevent GDB from 319# prompting 320# 321# Warning! On a machine with little free swap space, this may 322# fail! 323# 324send_gdb "set height 9999\n" 325gdb_expect { 326 -re "$gdb_prompt $"\ 327 {pass "set screen page height to practical infinity"} 328 timeout {fail "(timeout) set screen page height to practical infinity"} 329} 330send_gdb "sharedlibrary\n" 331gdb_expect { 332 -re ".*Reading symbols from .*/lib02-so-thresh\\.sl\\.\\.\\.done\\..*$gdb_prompt $"\ 333 {pass "manually load all symbols"} 334 -re "$gdb_prompt $" { 335 setup_xfail hppa*-*-* CHFts24108 336 fail "manually load all symbols (CHFts24108)" 337 } 338 timeout {fail "(timeout) manually load all symbols"} 339} 340 341return 0 342