1# Copyright (C) 1997, 1998, 2007 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# Please email any bugs, comments, and/or additions to this file to: 17# bug-gdb@prep.ai.mit.edu 18 19if $tracelevel then { 20 strace $tracelevel 21 } 22 23set prms_id 0 24set bug_id 0 25 26if { [skip_hp_tests] } then { continue } 27 28set testfile "so-thresh" 29set binfile ${objdir}/${subdir}/${testfile} 30 31if [get_compiler_info ${binfile}] { 32 return -1 33} 34 35# This testcase is relatively large, and therefore can take awhile to 36# load. We'd best set the timeout to something suitable, or we may 37# seem to fail... 38# 39set timeout 60 40 41# Build procedure for this testcase: 42# ${srcdir}/${subdir}/so-thresh.sh ${subdir} 43# which calls, 44# make -f ${srcdir}/${subdir}/so-thresh.mk <targets> <macros> 45# which builds, 46# genso-thresh (from genso-thresh.c) 47# which generates, 48# lib00-so-thresh.c 49# lib01-so-thresh.c 50# lib02-so-thresh.c 51# so-thresh.lopt (link options file) 52# lib0*-so-thresh.sl (from .c files above) 53# so-thresh (from so-thresh.c) 54# using lib0*-so-thresh.sl and so-thresh.lopt 55# 56# Since so-thresh.mk requires SRCDIR and OBJDIR macro definitions, 57# and SRCDIR / OBJDIR could be in relative path format, we use 58# so-thresh.sh script to pin down SRCDIR / OBJDIR (using $PWD/ prefix 59# when detected relative path values for srcdir / objdir), before the 60# 'cd $subdir' call (when this can be done in TCL here, we can call 61# make directly instead). 62# 63# remote_exec build "sh -c \\\"cd ${objdir}/${subdir}\\; make -v -f ${srcdir}/${subdir}/${testfile}.mk clean require_shlibs all SRCDIR=${srcdir}/${subdir} OBJDIR=${objdir}/${subdir}\\\"" 64 65remote_exec build "${srcdir}/${subdir}/${testfile}.sh $subdir" 66 67# Only HP-UX (and any other platforms using SOM shared libraries, I 68# guess) interprets the auto-solib-limit variable as a threshhold, 69# rather than a boolean that strictly enables or disables automatic 70# loading of shlib symbol tables. 71# 72# On HP-UX, it is the size threshhold (in megabytes) at which to 73# stop auto loading of symbol tables. 74# 75if ![istarget "hppa*-hp-hpux*"] then { 76 setup_xfail "*-*-*" 77} 78 79# Start with a fresh gdb 80# 81gdb_exit 82gdb_start 83gdb_reinitialize_dir $srcdir/$subdir 84gdb_load ${binfile} 85 86# This is a test of gdb's ability on HP-UX to stop automatically 87# loading symbols of shared libraries, when the total size of the 88# debugger's symbol table reaches a specified threshhold. 89# 90 91# On HP-UX, the help text for auto-solib-limit mentions that it 92# serves as a threshhold. 93# 94send_gdb "help set auto-solib-limit\n" 95gdb_expect { 96 -re "Set threshold .in Mb. for autoloading shared library symbols.* 97When shared library autoloading is enabled, new libraries will be loaded.* 98only until the total size of shared library symbols exceeds this.* 99threshold in megabytes. Is ignored when using .sharedlibrary.*$gdb_prompt $"\ 100 {pass "help set auto-solib-limit"} 101 -re "$gdb_prompt $"\ 102 {fail "help set auto-solib-limit"} 103 timeout {fail "(timeout) help set auto-solib-limit"} 104} 105 106# On HP-UX, the threshhold is by default set to 50, which means 107# 50 megabytes. 108# 109send_gdb "show auto-solib-limit\n" 110gdb_expect { 111 -re "Threshold .in Mb. for autoloading shared library symbols is $decimal.*$gdb_prompt $"\ 112 {pass "show auto-solib-limit "} 113 -re "$gdb_prompt $"\ 114 {fail "show auto-solib-limit "} 115 timeout {fail "(timeout) show auto-solib-limit "} 116} 117 118send_gdb "set auto-solib-limit 1\n" 119gdb_expect { 120 -re ".*$gdb_prompt $" 121 {pass "set auto-solib-limit to 1"} 122 -re ".*$gdb_prompt $" 123 {fail "set auto-solib-limit to 1"} 124 timeout {fail "(timeout) set auto-solib-limit to 1"} 125} 126 127 128# We have manually verified that our testcase exceeds 1 Mbytes 129# of heap space in GDB to hold the symbols for the main program 130# and all associated linked-against libraries. Thus, when we 131# run to the program's main, and therefore notice all the linked- 132# against shlibs, we expect to hit the threshhold. 133# 134# (Note that we're not using the expect [runto main] function here, 135# 'cause we want to match on output from the run command. 136# 137send_gdb "break main\n" 138gdb_expect { 139 -re "Breakpoint \[0-9\]* at.*$gdb_prompt $"\ 140 {pass "1 set break at main"} 141 -re "$gdb_prompt $"\ 142 {fail "1 set break at main"} 143 timeout {fail "(timeout) 1 set break at main"} 144} 145 146send_gdb "run\n" 147gdb_expect { 148 -re ".*warning. Symbols for some libraries have not been loaded, because.* 149doing so would exceed the size threshold specified by auto-solib-limit.* 150To manually load symbols, use the 'sharedlibrary' command.* 151To raise the threshold, set auto-solib-limit to a larger value and rerun.* 152the program.*$gdb_prompt $"\ 153 {pass "run to main hit auto-solib-limit threshold"} 154 -re "$gdb_prompt $"\ 155 {fail "run to main hit auto-solib-limit threshold"} 156 timeout {fail "(timeout) run to main hit auto-solib-limit threshold"} 157} 158 159# Verify that "info share" mentions something about libraries whose 160# symbols weren't loaded. 161# 162# We'll assume that at least the last two shlib's symbols weren't 163# loaded. As a side-effect of matching this pattern, the text start 164# address of the last one is captured in expect_out(1,string). 165# (we'll need it for the 'add-symbol-file' command in a nonce...) 166# 167send_gdb "info sharedlibrary\n" 168gdb_expect { 169 -re ".*lib01_$testfile.sl .*symbols not loaded.*0x\[0-9\]* (0x\[0-9a-fA-F\]*).*$gdb_prompt $"\ 170 { send_gdb "add-symbol-file lib02_$testfile.sl $expect_out(1,string)\n" 171 gdb_expect { 172 -re "add symbol table.*y or n.*$"\ 173 {send_gdb "y\n" 174 gdb_expect { 175 -re "$gdb_prompt $" {pass "add-symbol-file and info sharedlib"} 176 timeout {fail "(timeout) add-symbol-file and info sharedlib"} 177 }} 178 -re "$gdb_prompt $"\ 179 {fail "add-symbol-file and info sharedlib"} 180 timeout {fail "(timeout) add-symbol-file and info sharedlib"} 181 } 182 } 183 -re "$gdb_prompt $" { 184 setup_xfail hppa*-*-* CHFts24108 185 fail "info sharedlibrary shows shlibs with unloaded symbols" 186 } 187 timeout {fail "(timeout) info sharedlibrary shows shlibs with unloaded symbols"} 188} 189 190# Verify that we can manually load the symbol table of a library 191# whose symbols weren't loaded. (We'll pick the last one.) 192# 193 194# I moved this test inside the one above, because the expect_out array is not ok if the 195# previous test has failed, and expect would error out (elz) 196# 197#send_gdb "add-symbol-file lib02_$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 $" {pass "add-symbol-file"} 203# timeout {fail "(timeout) add-symbol-file"} 204# }} 205# -re "$gdb_prompt $"\ 206# {fail "add-symbol-file"} 207# timeout {fail "(timeout) add-symbol-file"} 208#} 209 210# Verify that we can manually load the symbols for all libraries 211# which weren't already loaded. 212# 213# Warning! On a machine with little free swap space, this may 214# fail! 215# 216send_gdb "sharedlibrary\n" 217gdb_expect { 218 -re "Reading symbols from.*done.*$gdb_prompt $"\ 219 {pass "sharedlibrary"} 220 -re "$gdb_prompt $" { 221 setup_xfail hppa*-*-* CHFts24108 222 fail "sharedlibrary" 223 } 224 timeout {fail "(timeout) sharedlibrary"} 225} 226 227# Rerun the program, this time verifying that we can set the 228# threshhold high enough to avoid hitting it. 229# 230# It appears that gdb isn't freeing memory when rerunning, as one 231# would expect. To avoid potentially hitting a virtual memory 232# ceiling, start with a fresh gdb. 233# 234gdb_exit 235gdb_start 236gdb_reinitialize_dir $srcdir/$subdir 237gdb_load ${binfile} 238 239send_gdb "break main\n" 240gdb_expect { 241 -re "Breakpoint \[0-9\]* at.*$gdb_prompt $"\ 242 {pass "2 set break at main"} 243 -re "$gdb_prompt $"\ 244 {fail "2 set break at main"} 245 timeout {fail "(timeout) 2 set break at main"} 246} 247 248send_gdb "set auto-solib-limit 9999\n" 249gdb_expect { 250 -re "$gdb_prompt $"\ 251 {pass "set auto-solib-limit threshold to practical infinity"} 252 timeout {fail "(timeout) set auto-solib-limit threshold to practical infinity"} 253} 254send_gdb "run\n" 255gdb_expect { 256 -re ".*warning. Symbols for some libraries have not been loaded, because.* 257doing so would exceed the size threshold specified by auto-solib-limit.* 258To manually load symbols, use the 'sharedlibrary' command.* 259To raise the threshold, set auto-solib-limit to a larger value and rerun.* 260the program.*$gdb_prompt $"\ 261 {fail "rerun threshold at practical infinity (still hit threshold)"} 262 -re "$gdb_prompt $"\ 263 {pass "rerun with threshold at practical infinity"} 264 timeout {fail "(timeout) rerun with threshold at practical infinity"} 265} 266 267# Rerun the program, this time altogether disabling the auto loading 268# feature. There should be no information at all about shared 269# libraries now. 270# 271# ??rehrauer: Personally, I'd call that a bug, since it doesn't give 272# you the ability to manually load single shlibs (you need the text 273# start address that 'info share' normall gives you). On the other 274# hand, one can easily choose to load them all... 275# 276# It appears that gdb isn't freeing memory when rerunning, as one 277# would expect. To avoid potentially hitting a virtual memory 278# ceiling, start with a fresh gdb. 279# 280gdb_exit 281gdb_start 282gdb_reinitialize_dir $srcdir/$subdir 283gdb_load ${binfile} 284 285send_gdb "break main\n" 286gdb_expect { 287 -re "Breakpoint \[0-9\]* at.*$gdb_prompt $"\ 288 {pass "3 set break at main"} 289 -re "$gdb_prompt $"\ 290 {fail "3 set break at main"} 291 timeout {fail "(timeout) 3 set break at main"} 292} 293 294send_gdb "set auto-solib-limit 0\n" 295gdb_expect { 296 -re "$gdb_prompt $"\ 297 {pass "set auto-solib-limit threshold to 0"} 298 timeout {fail "(timeout) set auto-solib-limit threshold to 0"} 299} 300send_gdb "run\n" 301gdb_expect { 302 -re ".*warning. Symbols for some libraries have not been loaded, because.* 303doing so would exceed the size threshold specified by auto-solib-limit.* 304To manually load symbols, use the 'sharedlibrary' command.* 305To raise the threshold, set auto-solib-limit to a larger value and rerun.* 306the program.*$gdb_prompt $"\ 307 {fail "rerun threshold at 0 (still hit threshold)"} 308 -re "$gdb_prompt $"\ 309 {pass "rerun with threshold at 0"} 310 timeout {fail "(timeout) rerun with threshold at 0"} 311} 312 313# Verify that we can still manually load symbols for all libraries. 314# (We'll assume that if the last shlib's symbols are loaded, that 315# all of them were.) 316# 317# Note that we set the GDB "height" variable to prevent GDB from 318# prompting 319# 320# Warning! On a machine with little free swap space, this may 321# fail! 322# 323send_gdb "set height 9999\n" 324gdb_expect { 325 -re "$gdb_prompt $"\ 326 {pass "set screen page height to practical infinity"} 327 timeout {fail "(timeout) set screen page height to practical infinity"} 328} 329send_gdb "sharedlibrary\n" 330gdb_expect { 331 -re ".*Reading symbols from .*/lib02-so-thresh\\.sl\\.\\.\\.done\\..*$gdb_prompt $"\ 332 {pass "manually load all symbols"} 333 -re "$gdb_prompt $" { 334 setup_xfail hppa*-*-* CHFts24108 335 fail "manually load all symbols (CHFts24108)" 336 } 337 timeout {fail "(timeout) manually load all symbols"} 338} 339 340return 0 341