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#   Copyright (C) 1997, 1998 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

# Please email any bugs, comments, and/or additions to this file to:

# bug-gdb@prep.ai.mit.edu

if $tracelevel then {

        strace $tracelevel

        }

set prms_id 0

set bug_id 0

if { [skip_hp_tests] } then { continue }

set testfile "so-thresh"

set binfile ${objdir}/${subdir}/${testfile}

if [get_compiler_info ${binfile}] {

    return -1

}

# This testcase is relatively large, and therefore can take awhile to

# load.  We'd best set the timeout to something suitable, or we may

# seem to fail...

#

set timeout 60

# Build procedure for this testcase:

#    ${srcdir}/${subdir}/so-thresh.sh ${subdir}

#        which calls,

#        make -f ${srcdir}/${subdir}/so-thresh.mk  

#            which builds,

#                genso-thresh (from genso-thresh.c)

#                    which generates,

#                        lib00-so-thresh.c

#                        lib01-so-thresh.c

#                        lib02-so-thresh.c

#                        so-thresh.lopt (link options file)

#                lib0*-so-thresh.sl (from .c files above)

#                so-thresh (from so-thresh.c)

#                    using lib0*-so-thresh.sl and so-thresh.lopt

#

# Since so-thresh.mk requires SRCDIR and OBJDIR macro definitions,

# and SRCDIR / OBJDIR could be in relative path format, we use

# so-thresh.sh script to pin down SRCDIR / OBJDIR (using $PWD/ prefix

# when detected relative path values for srcdir / objdir), before the

# 'cd $subdir' call (when this can be done in TCL here, we can call

# make directly instead).

#

# 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}\\\""

remote_exec build "${srcdir}/${subdir}/${testfile}.sh $subdir"

# Only HP-UX (and any other platforms using SOM shared libraries, I

# guess) interprets the auto-solib-limit variable as a threshhold,

# rather than a boolean that strictly enables or disables automatic

# loading of shlib symbol tables.

#

# On HP-UX, it is the size threshhold (in megabytes) at which to

# stop auto loading of symbol tables.

#

if ![istarget "hppa*-hp-hpux*"] then {

   setup_xfail "*-*-*"

}

# Start with a fresh gdb

#

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

# This is a test of gdb's ability on HP-UX to stop automatically

# loading symbols of shared libraries, when the total size of the

# debugger's symbol table reaches a specified threshhold.

#

# On HP-UX, the help text for auto-solib-limit mentions that it

# serves as a threshhold.

#

send_gdb "help set auto-solib-limit\n"

gdb_expect {

  -re "Set threshold .in Mb. for autoloading shared library symbols.*

When shared library autoloading is enabled, new libraries will be loaded.*

only until the total size of shared library symbols exceeds this.*

threshold in megabytes.  Is ignored when using .sharedlibrary.*$gdb_prompt $"\

          {pass "help set auto-solib-limit"}

  -re "$gdb_prompt $"\

          {fail "help set auto-solib-limit"}

  timeout {fail "(timeout) help set auto-solib-limit"}

}

# On HP-UX, the threshhold is by default set to 50, which means

# 50 megabytes.

#

send_gdb "show auto-solib-limit\n"

gdb_expect {

  -re "Threshold .in Mb. for autoloading shared library symbols is $decimal.*$gdb_prompt $"\

          {pass "show auto-solib-limit "}

  -re "$gdb_prompt $"\

          {fail "show auto-solib-limit "}

  timeout {fail "(timeout) show auto-solib-limit "}

}

send_gdb "set auto-solib-limit 1\n"

gdb_expect {

   -re ".*$gdb_prompt $"

            {pass "set auto-solib-limit to 1"}

   -re ".*$gdb_prompt $"

            {fail "set auto-solib-limit to 1"}

   timeout {fail "(timeout) set auto-solib-limit to 1"}

}

# We have manually verified that our testcase exceeds 1 Mbytes

# of heap space in GDB to hold the symbols for the main program

# and all associated linked-against libraries.  Thus, when we

# run to the program's main, and therefore notice all the linked-

# against shlibs, we expect to hit the threshhold.

#

# (Note that we're not using the expect [runto main] function here,

# 'cause we want to match on output from the run command.

#

send_gdb "break main\n"

gdb_expect {

  -re "Breakpoint \[0-9\]* at.*$gdb_prompt $"\

          {pass "1 set break at main"}

  -re "$gdb_prompt $"\

          {fail "1 set break at main"}

  timeout {fail "(timeout) 1 set break at main"}

}

send_gdb "run\n"

gdb_expect {

  -re ".*warning. Symbols for some libraries have not been loaded, because.*

doing so would exceed the size threshold specified by auto-solib-limit.*

To manually load symbols, use the 'sharedlibrary' command.*

To raise the threshold, set auto-solib-limit to a larger value and rerun.*

the program.*$gdb_prompt $"\

          {pass "run to main hit auto-solib-limit threshold"}

  -re "$gdb_prompt $"\

          {fail "run to main hit auto-solib-limit threshold"}

  timeout {fail "(timeout) run to main hit auto-solib-limit threshold"}

}

# Verify that "info share" mentions something about libraries whose

# symbols weren't loaded.

#

# We'll assume that at least the last two shlib's symbols weren't

# loaded.  As a side-effect of matching this pattern, the text start

# address of the last one is captured in expect_out(1,string).

# (we'll need it for the 'add-symbol-file' command in a nonce...)

#

send_gdb "info sharedlibrary\n"

gdb_expect {

  -re ".*lib01_$testfile.sl .*symbols not loaded.*0x\[0-9\]*  (0x\[0-9a-fA-F\]*).*$gdb_prompt $"\

          { send_gdb "add-symbol-file lib02_$testfile.sl $expect_out(1,string)\n"

            gdb_expect {

              -re "add symbol table.*y or n.*$"\

                      {send_gdb "y\n"

                       gdb_expect {

                         -re "$gdb_prompt $" {pass "add-symbol-file and info sharedlib"}

                         timeout {fail "(timeout) add-symbol-file and info sharedlib"}

                       }}

              -re "$gdb_prompt $"\

                      {fail "add-symbol-file and info sharedlib"}

              timeout {fail "(timeout) add-symbol-file and info sharedlib"}

            }

          }

  -re "$gdb_prompt $" {

        setup_xfail hppa*-*-* CHFts24108

        fail "info sharedlibrary shows shlibs with unloaded symbols"

    }

  timeout {fail "(timeout) info sharedlibrary shows shlibs with unloaded symbols"}

}

# Verify that we can manually load the symbol table of a library

# whose symbols weren't loaded.  (We'll pick the last one.)

#

# I moved this test inside the one above, because the expect_out array is not ok if the

# previous test has failed, and expect would error out (elz)

#

#send_gdb "add-symbol-file lib02_$testfile.sl $expect_out(1,string)\n"

#gdb_expect {

#  -re "add symbol table.*y or n.*$"\

#          {send_gdb "y\n"

#           gdb_expect {

#             -re "$gdb_prompt $" {pass "add-symbol-file"}

#             timeout {fail "(timeout) add-symbol-file"}

#           }}

#  -re "$gdb_prompt $"\

#          {fail "add-symbol-file"}

#  timeout {fail "(timeout) add-symbol-file"}

#}

# Verify that we can manually load the symbols for all libraries

# which weren't already loaded.

#

# Warning!  On a machine with little free swap space, this may

# fail!

#

send_gdb "sharedlibrary\n"

gdb_expect {

  -re "Reading symbols from.*done.*$gdb_prompt $"\

          {pass "sharedlibrary"}

  -re "$gdb_prompt $" {

        setup_xfail hppa*-*-* CHFts24108

        fail "sharedlibrary"

    }

  timeout {fail "(timeout) sharedlibrary"}

}

# Rerun the program, this time verifying that we can set the

# threshhold high enough to avoid hitting it.

#

# It appears that gdb isn't freeing memory when rerunning, as one

# would expect.  To avoid potentially hitting a virtual memory

# ceiling, start with a fresh gdb.

#

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

send_gdb "break main\n"

gdb_expect {

  -re "Breakpoint \[0-9\]* at.*$gdb_prompt $"\

          {pass "2 set break at main"}

  -re "$gdb_prompt $"\

          {fail "2 set break at main"}

  timeout {fail "(timeout) 2 set break at main"}

}

send_gdb "set auto-solib-limit 9999\n"

gdb_expect {

  -re "$gdb_prompt $"\

          {pass "set auto-solib-limit threshold to practical infinity"}

  timeout {fail "(timeout) set auto-solib-limit threshold to practical infinity"}

}

send_gdb "run\n"

gdb_expect {

  -re ".*warning. Symbols for some libraries have not been loaded, because.*

doing so would exceed the size threshold specified by auto-solib-limit.*

To manually load symbols, use the 'sharedlibrary' command.*

To raise the threshold, set auto-solib-limit to a larger value and rerun.*

the program.*$gdb_prompt $"\

          {fail "rerun threshold at practical infinity (still hit threshold)"}

  -re "$gdb_prompt $"\

          {pass "rerun with threshold at practical infinity"}

  timeout {fail "(timeout) rerun with threshold at practical infinity"}

}

# Rerun the program, this time altogether disabling the auto loading

# feature.  There should be no information at all about shared

# libraries now.

#

# ??rehrauer: Personally, I'd call that a bug, since it doesn't give

# you the ability to manually load single shlibs (you need the text

# start address that 'info share' normall gives you).  On the other

# hand, one can easily choose to load them all...

#

# It appears that gdb isn't freeing memory when rerunning, as one

# would expect.  To avoid potentially hitting a virtual memory

# ceiling, start with a fresh gdb.

#

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

send_gdb "break main\n"

gdb_expect {

  -re "Breakpoint \[0-9\]* at.*$gdb_prompt $"\

          {pass "3 set break at main"}

  -re "$gdb_prompt $"\

          {fail "3 set break at main"}

  timeout {fail "(timeout) 3 set break at main"}

}

send_gdb "set auto-solib-limit 0\n"

gdb_expect {

  -re "$gdb_prompt $"\

          {pass "set auto-solib-limit threshold to 0"}

  timeout {fail "(timeout) set auto-solib-limit threshold to 0"}

}

send_gdb "run\n"

gdb_expect {

  -re ".*warning. Symbols for some libraries have not been loaded, because.*

doing so would exceed the size threshold specified by auto-solib-limit.*

To manually load symbols, use the 'sharedlibrary' command.*

To raise the threshold, set auto-solib-limit to a larger value and rerun.*

the program.*$gdb_prompt $"\

          {fail "rerun threshold at 0 (still hit threshold)"}

  -re "$gdb_prompt $"\

          {pass "rerun with threshold at 0"}

  timeout {fail "(timeout) rerun with threshold at 0"}

}

# Verify that we can still manually load symbols for all libraries.

# (We'll assume that if the last shlib's symbols are loaded, that

# all of them were.)

#

# Note that we set the GDB "height" variable to prevent GDB from

# prompting

#

# Warning!  On a machine with little free swap space, this may

# fail!

#

send_gdb "set height 9999\n"

gdb_expect {

  -re "$gdb_prompt $"\

          {pass "set screen page height to practical infinity"}

  timeout {fail "(timeout) set screen page height to practical infinity"}

}

send_gdb "sharedlibrary\n"

gdb_expect {

  -re ".*Reading symbols from .*/lib02-so-thresh\\.sl\\.\\.\\.done\\..*$gdb_prompt $"\

          {pass "manually load all symbols"}

  -re "$gdb_prompt $" {

        setup_xfail hppa*-*-* CHFts24108

        fail "manually load all symbols (CHFts24108)"

    }

  timeout {fail "(timeout) manually load all symbols"}

}

return 0